* [RFCv2 PATCH 02/34] v4l2-ioctl.c: move a block of code down, no other changes.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
@ 2012-06-22 12:20 ` Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 03/34] v4l2-ioctl.c: introduce INFO_FL_CLEAR to replace switch Hans Verkuil
` (31 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:20 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
A block of code is moved down in the code to make later changes easier.
Do just the move without other changes to keep the diff readable for the
upcoming patch.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 288 +++++++++++++++++++-------------------
1 file changed, 144 insertions(+), 144 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 91be4e8..7c6831f 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -183,150 +183,6 @@ static const char *v4l2_memory_names[] = {
/* ------------------------------------------------------------------ */
/* debug help functions */
-struct v4l2_ioctl_info {
- unsigned int ioctl;
- u16 flags;
- const char * const name;
-};
-
-/* This control needs a priority check */
-#define INFO_FL_PRIO (1 << 0)
-/* This control can be valid if the filehandle passes a control handler. */
-#define INFO_FL_CTRL (1 << 1)
-
-#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \
- .ioctl = _ioctl, \
- .flags = _flags, \
- .name = #_ioctl, \
-}
-
-static struct v4l2_ioctl_info v4l2_ioctls[] = {
- IOCTL_INFO(VIDIOC_QUERYCAP, 0),
- IOCTL_INFO(VIDIOC_ENUM_FMT, 0),
- IOCTL_INFO(VIDIOC_G_FMT, 0),
- IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYBUF, 0),
- IOCTL_INFO(VIDIOC_G_FBUF, 0),
- IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QBUF, 0),
- IOCTL_INFO(VIDIOC_DQBUF, 0),
- IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_PARM, 0),
- IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_STD, 0),
- IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUMSTD, 0),
- IOCTL_INFO(VIDIOC_ENUMINPUT, 0),
- IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_G_TUNER, 0),
- IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_AUDIO, 0),
- IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_G_INPUT, 0),
- IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_OUTPUT, 0),
- IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0),
- IOCTL_INFO(VIDIOC_G_AUDOUT, 0),
- IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_MODULATOR, 0),
- IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_FREQUENCY, 0),
- IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_CROPCAP, 0),
- IOCTL_INFO(VIDIOC_G_CROP, 0),
- IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_SELECTION, 0),
- IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
- IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYSTD, 0),
- IOCTL_INFO(VIDIOC_TRY_FMT, 0),
- IOCTL_INFO(VIDIOC_ENUMAUDIO, 0),
- IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0),
- IOCTL_INFO(VIDIOC_G_PRIORITY, 0),
- IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0),
- IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
- IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0),
- IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0),
- IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0),
- IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0),
- IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0),
- IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0),
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
- IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
-#endif
- IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
- IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
- IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_DV_PRESET, 0),
- IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0),
- IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0),
- IOCTL_INFO(VIDIOC_DQEVENT, 0),
- IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0),
- IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
- IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_PREPARE_BUF, 0),
- IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0),
- IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0),
- IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0),
-};
-#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
-
-bool v4l2_is_known_ioctl(unsigned int cmd)
-{
- if (_IOC_NR(cmd) >= V4L2_IOCTLS)
- return false;
- return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
-}
-
-/* Common ioctl debug function. This function can be used by
- external ioctl messages as well as internal V4L ioctl */
-void v4l_printk_ioctl(unsigned int cmd)
-{
- char *dir, *type;
-
- switch (_IOC_TYPE(cmd)) {
- case 'd':
- type = "v4l2_int";
- break;
- case 'V':
- if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
- type = "v4l2";
- break;
- }
- printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
- return;
- default:
- type = "unknown";
- }
-
- switch (_IOC_DIR(cmd)) {
- case _IOC_NONE: dir = "--"; break;
- case _IOC_READ: dir = "r-"; break;
- case _IOC_WRITE: dir = "-w"; break;
- case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
- default: dir = "*ERR*"; break;
- }
- printk("%s ioctl '%c', dir=%s, #%d (0x%08x)",
- type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
-}
-EXPORT_SYMBOL(v4l_printk_ioctl);
-
static void dbgbuf(unsigned int cmd, struct video_device *vfd,
struct v4l2_buffer *p)
{
@@ -536,6 +392,150 @@ static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type)
return -EINVAL;
}
+struct v4l2_ioctl_info {
+ unsigned int ioctl;
+ u16 flags;
+ const char * const name;
+};
+
+/* This control needs a priority check */
+#define INFO_FL_PRIO (1 << 0)
+/* This control can be valid if the filehandle passes a control handler. */
+#define INFO_FL_CTRL (1 << 1)
+
+#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \
+ .ioctl = _ioctl, \
+ .flags = _flags, \
+ .name = #_ioctl, \
+}
+
+static struct v4l2_ioctl_info v4l2_ioctls[] = {
+ IOCTL_INFO(VIDIOC_QUERYCAP, 0),
+ IOCTL_INFO(VIDIOC_ENUM_FMT, 0),
+ IOCTL_INFO(VIDIOC_G_FMT, 0),
+ IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_QUERYBUF, 0),
+ IOCTL_INFO(VIDIOC_G_FBUF, 0),
+ IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_QBUF, 0),
+ IOCTL_INFO(VIDIOC_DQBUF, 0),
+ IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_PARM, 0),
+ IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_STD, 0),
+ IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_ENUMSTD, 0),
+ IOCTL_INFO(VIDIOC_ENUMINPUT, 0),
+ IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_G_TUNER, 0),
+ IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_AUDIO, 0),
+ IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_G_INPUT, 0),
+ IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_OUTPUT, 0),
+ IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0),
+ IOCTL_INFO(VIDIOC_G_AUDOUT, 0),
+ IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_MODULATOR, 0),
+ IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_FREQUENCY, 0),
+ IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_CROPCAP, 0),
+ IOCTL_INFO(VIDIOC_G_CROP, 0),
+ IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_SELECTION, 0),
+ IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
+ IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_QUERYSTD, 0),
+ IOCTL_INFO(VIDIOC_TRY_FMT, 0),
+ IOCTL_INFO(VIDIOC_ENUMAUDIO, 0),
+ IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0),
+ IOCTL_INFO(VIDIOC_G_PRIORITY, 0),
+ IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0),
+ IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
+ IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0),
+ IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0),
+ IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0),
+ IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0),
+ IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0),
+ IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0),
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
+ IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
+#endif
+ IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
+ IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
+ IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_DV_PRESET, 0),
+ IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0),
+ IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0),
+ IOCTL_INFO(VIDIOC_DQEVENT, 0),
+ IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0),
+ IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
+ IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO),
+ IOCTL_INFO(VIDIOC_PREPARE_BUF, 0),
+ IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0),
+ IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0),
+ IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0),
+};
+#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
+
+bool v4l2_is_known_ioctl(unsigned int cmd)
+{
+ if (_IOC_NR(cmd) >= V4L2_IOCTLS)
+ return false;
+ return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
+}
+
+/* Common ioctl debug function. This function can be used by
+ external ioctl messages as well as internal V4L ioctl */
+void v4l_printk_ioctl(unsigned int cmd)
+{
+ char *dir, *type;
+
+ switch (_IOC_TYPE(cmd)) {
+ case 'd':
+ type = "v4l2_int";
+ break;
+ case 'V':
+ if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
+ type = "v4l2";
+ break;
+ }
+ printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
+ return;
+ default:
+ type = "unknown";
+ }
+
+ switch (_IOC_DIR(cmd)) {
+ case _IOC_NONE: dir = "--"; break;
+ case _IOC_READ: dir = "r-"; break;
+ case _IOC_WRITE: dir = "-w"; break;
+ case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
+ default: dir = "*ERR*"; break;
+ }
+ printk("%s ioctl '%c', dir=%s, #%d (0x%08x)",
+ type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
+}
+EXPORT_SYMBOL(v4l_printk_ioctl);
+
static long __video_do_ioctl(struct file *file,
unsigned int cmd, void *arg)
{
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 03/34] v4l2-ioctl.c: introduce INFO_FL_CLEAR to replace switch.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 02/34] v4l2-ioctl.c: move a block of code down, no other changes Hans Verkuil
@ 2012-06-22 12:20 ` Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 04/34] v4l2-ioctl.c: v4l2-ioctl: add debug and callback/offset functionality Hans Verkuil
` (30 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:20 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
The switch statement that determines how much data should be copied from
userspace is replaced by a table lookup.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 103 +++++++++++++++-----------------------
1 file changed, 41 insertions(+), 62 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 7c6831f..a9602db 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -394,7 +394,7 @@ static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type)
struct v4l2_ioctl_info {
unsigned int ioctl;
- u16 flags;
+ u32 flags;
const char * const name;
};
@@ -402,6 +402,11 @@ struct v4l2_ioctl_info {
#define INFO_FL_PRIO (1 << 0)
/* This control can be valid if the filehandle passes a control handler. */
#define INFO_FL_CTRL (1 << 1)
+/* Zero struct from after the field to the end */
+#define INFO_FL_CLEAR(v4l2_struct, field) \
+ ((offsetof(struct v4l2_struct, field) + \
+ sizeof(((struct v4l2_struct *)0)->field)) << 16)
+#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \
.ioctl = _ioctl, \
@@ -411,11 +416,11 @@ struct v4l2_ioctl_info {
static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_QUERYCAP, 0),
- IOCTL_INFO(VIDIOC_ENUM_FMT, 0),
- IOCTL_INFO(VIDIOC_G_FMT, 0),
+ IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
+ IOCTL_INFO(VIDIOC_G_FMT, INFO_FL_CLEAR(v4l2_format, type)),
IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYBUF, 0),
+ IOCTL_INFO(VIDIOC_QUERYBUF, INFO_FL_CLEAR(v4l2_buffer, length)),
IOCTL_INFO(VIDIOC_G_FBUF, 0),
IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO),
@@ -423,33 +428,33 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_DQBUF, 0),
IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_PARM, 0),
+ IOCTL_INFO(VIDIOC_G_PARM, INFO_FL_CLEAR(v4l2_streamparm, type)),
IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_STD, 0),
IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUMSTD, 0),
- IOCTL_INFO(VIDIOC_ENUMINPUT, 0),
+ IOCTL_INFO(VIDIOC_ENUMSTD, INFO_FL_CLEAR(v4l2_standard, index)),
+ IOCTL_INFO(VIDIOC_ENUMINPUT, INFO_FL_CLEAR(v4l2_input, index)),
IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_G_TUNER, 0),
+ IOCTL_INFO(VIDIOC_G_TUNER, INFO_FL_CLEAR(v4l2_tuner, index)),
IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_AUDIO, 0),
IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL),
+ IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
+ IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
IOCTL_INFO(VIDIOC_G_INPUT, 0),
IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_OUTPUT, 0),
+ IOCTL_INFO(VIDIOC_G_OUTPUT, INFO_FL_CLEAR(v4l2_output, index)),
IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0),
IOCTL_INFO(VIDIOC_G_AUDOUT, 0),
IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_MODULATOR, 0),
+ IOCTL_INFO(VIDIOC_G_MODULATOR, INFO_FL_CLEAR(v4l2_modulator, index)),
IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_FREQUENCY, 0),
+ IOCTL_INFO(VIDIOC_G_FREQUENCY, INFO_FL_CLEAR(v4l2_frequency, tuner)),
IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_CROPCAP, 0),
- IOCTL_INFO(VIDIOC_G_CROP, 0),
+ IOCTL_INFO(VIDIOC_CROPCAP, INFO_FL_CLEAR(v4l2_cropcap, type)),
+ IOCTL_INFO(VIDIOC_G_CROP, INFO_FL_CLEAR(v4l2_crop, type)),
IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_SELECTION, 0),
IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO),
@@ -457,20 +462,20 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYSTD, 0),
IOCTL_INFO(VIDIOC_TRY_FMT, 0),
- IOCTL_INFO(VIDIOC_ENUMAUDIO, 0),
- IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0),
+ IOCTL_INFO(VIDIOC_ENUMAUDIO, INFO_FL_CLEAR(v4l2_audio, index)),
+ IOCTL_INFO(VIDIOC_ENUMAUDOUT, INFO_FL_CLEAR(v4l2_audioout, index)),
IOCTL_INFO(VIDIOC_G_PRIORITY, 0),
IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0),
+ IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0),
- IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0),
- IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0),
+ IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
+ IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0),
- IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0),
+ IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
+ IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0),
#ifdef CONFIG_VIDEO_ADV_DEBUG
@@ -2105,45 +2110,6 @@ static long __video_do_ioctl(struct file *file,
return ret;
}
-/* In some cases, only a few fields are used as input, i.e. when the app sets
- * "index" and then the driver fills in the rest of the structure for the thing
- * with that index. We only need to copy up the first non-input field. */
-static unsigned long cmd_input_size(unsigned int cmd)
-{
- /* Size of structure up to and including 'field' */
-#define CMDINSIZE(cmd, type, field) \
- case VIDIOC_##cmd: \
- return offsetof(struct v4l2_##type, field) + \
- sizeof(((struct v4l2_##type *)0)->field);
-
- switch (cmd) {
- CMDINSIZE(ENUM_FMT, fmtdesc, type);
- CMDINSIZE(G_FMT, format, type);
- CMDINSIZE(QUERYBUF, buffer, length);
- CMDINSIZE(G_PARM, streamparm, type);
- CMDINSIZE(ENUMSTD, standard, index);
- CMDINSIZE(ENUMINPUT, input, index);
- CMDINSIZE(G_CTRL, control, id);
- CMDINSIZE(G_TUNER, tuner, index);
- CMDINSIZE(QUERYCTRL, queryctrl, id);
- CMDINSIZE(QUERYMENU, querymenu, index);
- CMDINSIZE(ENUMOUTPUT, output, index);
- CMDINSIZE(G_MODULATOR, modulator, index);
- CMDINSIZE(G_FREQUENCY, frequency, tuner);
- CMDINSIZE(CROPCAP, cropcap, type);
- CMDINSIZE(G_CROP, crop, type);
- CMDINSIZE(ENUMAUDIO, audio, index);
- CMDINSIZE(ENUMAUDOUT, audioout, index);
- CMDINSIZE(ENCODER_CMD, encoder_cmd, flags);
- CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags);
- CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type);
- CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format);
- CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height);
- default:
- return _IOC_SIZE(cmd);
- }
-}
-
static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
void * __user *user_ptr, void ***kernel_ptr)
{
@@ -2218,7 +2184,20 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
err = -EFAULT;
if (_IOC_DIR(cmd) & _IOC_WRITE) {
- unsigned long n = cmd_input_size(cmd);
+ unsigned int n = _IOC_SIZE(cmd);
+
+ /*
+ * In some cases, only a few fields are used as input,
+ * i.e. when the app sets "index" and then the driver
+ * fills in the rest of the structure for the thing
+ * with that index. We only need to copy up the first
+ * non-input field.
+ */
+ if (v4l2_is_known_ioctl(cmd)) {
+ u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
+ if (flags & INFO_FL_CLEAR_MASK)
+ n = (flags & INFO_FL_CLEAR_MASK) >> 16;
+ }
if (copy_from_user(parg, (void __user *)arg, n))
goto out;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 04/34] v4l2-ioctl.c: v4l2-ioctl: add debug and callback/offset functionality.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 02/34] v4l2-ioctl.c: move a block of code down, no other changes Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 03/34] v4l2-ioctl.c: introduce INFO_FL_CLEAR to replace switch Hans Verkuil
@ 2012-06-22 12:20 ` Hans Verkuil
2012-06-22 12:20 ` [RFCv2 PATCH 05/34] v4l2-ioctl.c: remove an unnecessary #ifdef Hans Verkuil
` (29 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:20 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Add the necessary plumbing to make it possible to replace the switch by a
table driven implementation.
The ioctls ops can either be called directly, or by calling a small function
that does some additional work if needed.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 91 ++++++++++++++++++++++++++++++++------
1 file changed, 78 insertions(+), 13 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index a9602db..3b11e0d 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -396,12 +396,22 @@ struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
const char * const name;
+ union {
+ u32 offset;
+ int (*func)(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *p);
+ };
+ void (*debug)(const void *arg, bool write_only);
};
/* This control needs a priority check */
#define INFO_FL_PRIO (1 << 0)
/* This control can be valid if the filehandle passes a control handler. */
#define INFO_FL_CTRL (1 << 1)
+/* This is a standard ioctl, no need for special code */
+#define INFO_FL_STD (1 << 2)
+/* This is ioctl has its own function */
+#define INFO_FL_FUNC (1 << 3)
/* Zero struct from after the field to the end */
#define INFO_FL_CLEAR(v4l2_struct, field) \
((offsetof(struct v4l2_struct, field) + \
@@ -414,6 +424,24 @@ struct v4l2_ioctl_info {
.name = #_ioctl, \
}
+#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
+ [_IOC_NR(_ioctl)] = { \
+ .ioctl = _ioctl, \
+ .flags = _flags | INFO_FL_STD, \
+ .name = #_ioctl, \
+ .offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
+ .debug = _debug, \
+ }
+
+#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
+ [_IOC_NR(_ioctl)] = { \
+ .ioctl = _ioctl, \
+ .flags = _flags | INFO_FL_FUNC, \
+ .name = #_ioctl, \
+ .func = _func, \
+ .debug = _debug, \
+ }
+
static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_QUERYCAP, 0),
IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
@@ -512,7 +540,7 @@ bool v4l2_is_known_ioctl(unsigned int cmd)
external ioctl messages as well as internal V4L ioctl */
void v4l_printk_ioctl(unsigned int cmd)
{
- char *dir, *type;
+ const char *dir, *type;
switch (_IOC_TYPE(cmd)) {
case 'd':
@@ -523,10 +551,11 @@ void v4l_printk_ioctl(unsigned int cmd)
type = "v4l2";
break;
}
- printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
+ pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
return;
default:
type = "unknown";
+ break;
}
switch (_IOC_DIR(cmd)) {
@@ -536,7 +565,7 @@ void v4l_printk_ioctl(unsigned int cmd)
case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
default: dir = "*ERR*"; break;
}
- printk("%s ioctl '%c', dir=%s, #%d (0x%08x)",
+ pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
}
EXPORT_SYMBOL(v4l_printk_ioctl);
@@ -546,6 +575,9 @@ static long __video_do_ioctl(struct file *file,
{
struct video_device *vfd = video_devdata(file);
const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
+ bool write_only = false;
+ struct v4l2_ioctl_info default_info;
+ const struct v4l2_ioctl_info *info;
void *fh = file->private_data;
struct v4l2_fh *vfh = NULL;
int use_fh_prio = 0;
@@ -563,23 +595,40 @@ static long __video_do_ioctl(struct file *file,
}
if (v4l2_is_known_ioctl(cmd)) {
- struct v4l2_ioctl_info *info = &v4l2_ioctls[_IOC_NR(cmd)];
+ info = &v4l2_ioctls[_IOC_NR(cmd)];
if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
!((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
- return -ENOTTY;
+ goto done;
if (use_fh_prio && (info->flags & INFO_FL_PRIO)) {
ret = v4l2_prio_check(vfd->prio, vfh->prio);
if (ret)
- return ret;
+ goto done;
}
+ } else {
+ default_info.ioctl = cmd;
+ default_info.flags = 0;
+ default_info.debug = NULL;
+ info = &default_info;
}
- if ((vfd->debug & V4L2_DEBUG_IOCTL) &&
- !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) {
+ write_only = _IOC_DIR(cmd) == _IOC_WRITE;
+ if (info->debug && write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
v4l_print_ioctl(vfd->name, cmd);
- printk(KERN_CONT "\n");
+ pr_cont(": ");
+ info->debug(arg, write_only);
+ }
+ if (info->flags & INFO_FL_STD) {
+ typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
+ const void *p = vfd->ioctl_ops;
+ const vidioc_op *vidioc = p + info->offset;
+
+ ret = (*vidioc)(file, fh, arg);
+ goto done;
+ } else if (info->flags & INFO_FL_FUNC) {
+ ret = info->func(ops, file, fh, arg);
+ goto done;
}
switch (cmd) {
@@ -2100,10 +2149,26 @@ static long __video_do_ioctl(struct file *file,
break;
} /* switch */
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
- if (ret < 0) {
- v4l_print_ioctl(vfd->name, cmd);
- printk(KERN_CONT " error %ld\n", ret);
+done:
+ if (vfd->debug) {
+ if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
+ if (ret < 0)
+ printk(KERN_DEBUG "%s: error %ld\n",
+ video_device_node_name(vfd), ret);
+ return ret;
+ }
+ v4l_print_ioctl(vfd->name, cmd);
+ if (ret < 0)
+ pr_cont(": error %ld\n", ret);
+ else if (vfd->debug == V4L2_DEBUG_IOCTL)
+ pr_cont("\n");
+ else if (!info->debug)
+ return ret;
+ else if (_IOC_DIR(cmd) == _IOC_NONE)
+ info->debug(arg, write_only);
+ else {
+ pr_cont(": ");
+ info->debug(arg, write_only);
}
}
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 05/34] v4l2-ioctl.c: remove an unnecessary #ifdef.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (2 preceding siblings ...)
2012-06-22 12:20 ` [RFCv2 PATCH 04/34] v4l2-ioctl.c: v4l2-ioctl: add debug and callback/offset functionality Hans Verkuil
@ 2012-06-22 12:20 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 06/34] v4l2-ioctl.c: use the new table for querycap and i/o ioctls Hans Verkuil
` (28 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:20 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 3b11e0d..e72babf 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -506,10 +506,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0),
-#ifdef CONFIG_VIDEO_ADV_DEBUG
IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
-#endif
IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 06/34] v4l2-ioctl.c: use the new table for querycap and i/o ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (3 preceding siblings ...)
2012-06-22 12:20 ` [RFCv2 PATCH 05/34] v4l2-ioctl.c: remove an unnecessary #ifdef Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 07/34] v4l2-ioctl.c: use the new table for priority ioctls Hans Verkuil
` (27 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 328 ++++++++++++++++----------------------
1 file changed, 133 insertions(+), 195 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index e72babf..39424eb 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -183,6 +183,63 @@ static const char *v4l2_memory_names[] = {
/* ------------------------------------------------------------------ */
/* debug help functions */
+static void v4l_print_querycap(const void *arg, bool write_only)
+{
+ const struct v4l2_capability *p = arg;
+
+ pr_cont("driver=%s, card=%s, bus=%s, version=0x%08x, "
+ "capabilities=0x%08x, device_caps=0x%08x\n",
+ p->driver, p->card, p->bus_info,
+ p->version, p->capabilities, p->device_caps);
+}
+
+static void v4l_print_enuminput(const void *arg, bool write_only)
+{
+ const struct v4l2_input *p = arg;
+
+ pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, tuner=%u, "
+ "std=0x%08Lx, status=0x%x, capabilities=0x%x\n",
+ p->index, p->name, p->type, p->audioset, p->tuner,
+ (unsigned long long)p->std, p->status, p->capabilities);
+}
+
+static void v4l_print_enumoutput(const void *arg, bool write_only)
+{
+ const struct v4l2_output *p = arg;
+
+ pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, "
+ "modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
+ p->index, p->name, p->type, p->audioset, p->modulator,
+ (unsigned long long)p->std, p->capabilities);
+}
+
+static void v4l_print_audio(const void *arg, bool write_only)
+{
+ const struct v4l2_audio *p = arg;
+
+ if (write_only)
+ pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
+ else
+ pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n",
+ p->index, p->name, p->capability, p->mode);
+}
+
+static void v4l_print_audioout(const void *arg, bool write_only)
+{
+ const struct v4l2_audioout *p = arg;
+
+ if (write_only)
+ pr_cont("index=%u\n", p->index);
+ else
+ pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n",
+ p->index, p->name, p->capability, p->mode);
+}
+
+static void v4l_print_u32(const void *arg, bool write_only)
+{
+ pr_cont("value=%u\n", *(const u32 *)arg);
+}
+
static void dbgbuf(unsigned int cmd, struct video_device *vfd,
struct v4l2_buffer *p)
{
@@ -392,6 +449,69 @@ static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type)
return -EINVAL;
}
+static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_capability *cap = (struct v4l2_capability *)arg;
+
+ cap->version = LINUX_VERSION_CODE;
+ return ops->vidioc_querycap(file, fh, cap);
+}
+
+static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
+}
+
+static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
+}
+
+static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_input *p = arg;
+
+ /*
+ * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS &
+ * CAP_STD here based on ioctl handler provided by the
+ * driver. If the driver doesn't support these
+ * for a specific input, it must override these flags.
+ */
+ if (ops->vidioc_s_std)
+ p->capabilities |= V4L2_IN_CAP_STD;
+ if (ops->vidioc_s_dv_preset)
+ p->capabilities |= V4L2_IN_CAP_PRESETS;
+ if (ops->vidioc_s_dv_timings)
+ p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS;
+
+ return ops->vidioc_enum_input(file, fh, p);
+}
+
+static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_output *p = arg;
+
+ /*
+ * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS &
+ * CAP_STD here based on ioctl handler provided by the
+ * driver. If the driver doesn't support these
+ * for a specific output, it must override these flags.
+ */
+ if (ops->vidioc_s_std)
+ p->capabilities |= V4L2_OUT_CAP_STD;
+ if (ops->vidioc_s_dv_preset)
+ p->capabilities |= V4L2_OUT_CAP_PRESETS;
+ if (ops->vidioc_s_dv_timings)
+ p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS;
+
+ return ops->vidioc_enum_output(file, fh, p);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -443,7 +563,7 @@ struct v4l2_ioctl_info {
}
static struct v4l2_ioctl_info v4l2_ioctls[] = {
- IOCTL_INFO(VIDIOC_QUERYCAP, 0),
+ IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
IOCTL_INFO(VIDIOC_G_FMT, INFO_FL_CLEAR(v4l2_format, type)),
IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO),
@@ -461,22 +581,22 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_G_STD, 0),
IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_ENUMSTD, INFO_FL_CLEAR(v4l2_standard, index)),
- IOCTL_INFO(VIDIOC_ENUMINPUT, INFO_FL_CLEAR(v4l2_input, index)),
+ IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_G_TUNER, INFO_FL_CLEAR(v4l2_tuner, index)),
IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_AUDIO, 0),
- IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
+ IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
- IOCTL_INFO(VIDIOC_G_INPUT, 0),
- IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_OUTPUT, INFO_FL_CLEAR(v4l2_output, index)),
- IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0),
- IOCTL_INFO(VIDIOC_G_AUDOUT, 0),
- IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
+ IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
+ IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
+ IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
+ IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_MODULATOR, INFO_FL_CLEAR(v4l2_modulator, index)),
IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_FREQUENCY, INFO_FL_CLEAR(v4l2_frequency, tuner)),
@@ -490,8 +610,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYSTD, 0),
IOCTL_INFO(VIDIOC_TRY_FMT, 0),
- IOCTL_INFO(VIDIOC_ENUMAUDIO, INFO_FL_CLEAR(v4l2_audio, index)),
- IOCTL_INFO(VIDIOC_ENUMAUDOUT, INFO_FL_CLEAR(v4l2_audioout, index)),
+ IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
+ IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
IOCTL_INFO(VIDIOC_G_PRIORITY, 0),
IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
@@ -631,25 +751,6 @@ static long __video_do_ioctl(struct file *file,
switch (cmd) {
- /* --- capabilities ------------------------------------------ */
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability *cap = (struct v4l2_capability *)arg;
-
- cap->version = LINUX_VERSION_CODE;
- ret = ops->vidioc_querycap(file, fh, cap);
- if (!ret)
- dbgarg(cmd, "driver=%s, card=%s, bus=%s, "
- "version=0x%08x, "
- "capabilities=0x%08x, "
- "device_caps=0x%08x\n",
- cap->driver, cap->card, cap->bus_info,
- cap->version,
- cap->capabilities,
- cap->device_caps);
- break;
- }
-
/* --- priority ------------------------------------------ */
case VIDIOC_G_PRIORITY:
{
@@ -1164,98 +1265,6 @@ static long __video_do_ioctl(struct file *file,
(unsigned long long)*p);
break;
}
- /* ------ input switching ---------- */
- /* FIXME: Inputs can be handled inside videodev2 */
- case VIDIOC_ENUMINPUT:
- {
- struct v4l2_input *p = arg;
-
- /*
- * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS &
- * CAP_STD here based on ioctl handler provided by the
- * driver. If the driver doesn't support these
- * for a specific input, it must override these flags.
- */
- if (ops->vidioc_s_std)
- p->capabilities |= V4L2_IN_CAP_STD;
- if (ops->vidioc_s_dv_preset)
- p->capabilities |= V4L2_IN_CAP_PRESETS;
- if (ops->vidioc_s_dv_timings)
- p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS;
-
- ret = ops->vidioc_enum_input(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, type=%d, "
- "audioset=%d, "
- "tuner=%d, std=%08Lx, status=%d\n",
- p->index, p->name, p->type, p->audioset,
- p->tuner,
- (unsigned long long)p->std,
- p->status);
- break;
- }
- case VIDIOC_G_INPUT:
- {
- unsigned int *i = arg;
-
- ret = ops->vidioc_g_input(file, fh, i);
- if (!ret)
- dbgarg(cmd, "value=%d\n", *i);
- break;
- }
- case VIDIOC_S_INPUT:
- {
- unsigned int *i = arg;
-
- dbgarg(cmd, "value=%d\n", *i);
- ret = ops->vidioc_s_input(file, fh, *i);
- break;
- }
-
- /* ------ output switching ---------- */
- case VIDIOC_ENUMOUTPUT:
- {
- struct v4l2_output *p = arg;
-
- /*
- * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS &
- * CAP_STD here based on ioctl handler provided by the
- * driver. If the driver doesn't support these
- * for a specific output, it must override these flags.
- */
- if (ops->vidioc_s_std)
- p->capabilities |= V4L2_OUT_CAP_STD;
- if (ops->vidioc_s_dv_preset)
- p->capabilities |= V4L2_OUT_CAP_PRESETS;
- if (ops->vidioc_s_dv_timings)
- p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS;
-
- ret = ops->vidioc_enum_output(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, type=%d, "
- "audioset=0x%x, "
- "modulator=%d, std=0x%08Lx\n",
- p->index, p->name, p->type, p->audioset,
- p->modulator, (unsigned long long)p->std);
- break;
- }
- case VIDIOC_G_OUTPUT:
- {
- unsigned int *i = arg;
-
- ret = ops->vidioc_g_output(file, fh, i);
- if (!ret)
- dbgarg(cmd, "value=%d\n", *i);
- break;
- }
- case VIDIOC_S_OUTPUT:
- {
- unsigned int *i = arg;
-
- dbgarg(cmd, "value=%d\n", *i);
- ret = ops->vidioc_s_output(file, fh, *i);
- break;
- }
/* --- controls ---------------------------------------------- */
case VIDIOC_QUERYCTRL:
@@ -1426,77 +1435,6 @@ static long __video_do_ioctl(struct file *file,
p->id, p->index);
break;
}
- /* --- audio ---------------------------------------------- */
- case VIDIOC_ENUMAUDIO:
- {
- struct v4l2_audio *p = arg;
-
- ret = ops->vidioc_enumaudio(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
- "mode=0x%x\n", p->index, p->name,
- p->capability, p->mode);
- else
- dbgarg(cmd, "index=%d\n", p->index);
- break;
- }
- case VIDIOC_G_AUDIO:
- {
- struct v4l2_audio *p = arg;
-
- ret = ops->vidioc_g_audio(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
- "mode=0x%x\n", p->index,
- p->name, p->capability, p->mode);
- else
- dbgarg(cmd, "index=%d\n", p->index);
- break;
- }
- case VIDIOC_S_AUDIO:
- {
- struct v4l2_audio *p = arg;
-
- dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
- "mode=0x%x\n", p->index, p->name,
- p->capability, p->mode);
- ret = ops->vidioc_s_audio(file, fh, p);
- break;
- }
- case VIDIOC_ENUMAUDOUT:
- {
- struct v4l2_audioout *p = arg;
-
- dbgarg(cmd, "Enum for index=%d\n", p->index);
- ret = ops->vidioc_enumaudout(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability, p->mode);
- break;
- }
- case VIDIOC_G_AUDOUT:
- {
- struct v4l2_audioout *p = arg;
-
- ret = ops->vidioc_g_audout(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability, p->mode);
- break;
- }
- case VIDIOC_S_AUDOUT:
- {
- struct v4l2_audioout *p = arg;
-
- dbgarg(cmd, "index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability, p->mode);
-
- ret = ops->vidioc_s_audout(file, fh, p);
- break;
- }
case VIDIOC_G_MODULATOR:
{
struct v4l2_modulator *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 07/34] v4l2-ioctl.c: use the new table for priority ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (4 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 06/34] v4l2-ioctl.c: use the new table for querycap and i/o ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 08/34] v4l2-ioctl.c: use the new table for format/framebuffer ioctls Hans Verkuil
` (26 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 60 ++++++++++++++++++--------------------
1 file changed, 29 insertions(+), 31 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 39424eb..ef7db8a 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -470,6 +470,33 @@ static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
}
+static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd;
+ u32 *p = arg;
+
+ if (ops->vidioc_g_priority)
+ return ops->vidioc_g_priority(file, fh, arg);
+ vfd = video_devdata(file);
+ *p = v4l2_prio_max(&vfd->v4l2_dev->prio);
+ return 0;
+}
+
+static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd;
+ struct v4l2_fh *vfh;
+ u32 *p = arg;
+
+ if (ops->vidioc_s_priority)
+ return ops->vidioc_s_priority(file, fh, *p);
+ vfd = video_devdata(file);
+ vfh = file->private_data;
+ return v4l2_prio_change(&vfd->v4l2_dev->prio, &vfh->prio, *p);
+}
+
static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -612,8 +639,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_TRY_FMT, 0),
IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
- IOCTL_INFO(VIDIOC_G_PRIORITY, 0),
- IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
+ IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL),
@@ -750,35 +777,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
-
- /* --- priority ------------------------------------------ */
- case VIDIOC_G_PRIORITY:
- {
- enum v4l2_priority *p = arg;
-
- if (ops->vidioc_g_priority) {
- ret = ops->vidioc_g_priority(file, fh, p);
- } else if (use_fh_prio) {
- *p = v4l2_prio_max(&vfd->v4l2_dev->prio);
- ret = 0;
- }
- if (!ret)
- dbgarg(cmd, "priority is %d\n", *p);
- break;
- }
- case VIDIOC_S_PRIORITY:
- {
- enum v4l2_priority *p = arg;
-
- dbgarg(cmd, "setting priority to %d\n", *p);
- if (ops->vidioc_s_priority)
- ret = ops->vidioc_s_priority(file, fh, *p);
- else
- ret = v4l2_prio_change(&vfd->v4l2_dev->prio,
- &vfh->prio, *p);
- break;
- }
-
/* --- capture ioctls ---------------------------------------- */
case VIDIOC_ENUM_FMT:
{
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 08/34] v4l2-ioctl.c: use the new table for format/framebuffer ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (5 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 07/34] v4l2-ioctl.c: use the new table for priority ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 09/34] v4l2-ioctl.c: use the new table for overlay/streamon/off ioctls Hans Verkuil
` (25 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 692 +++++++++++++++++++-------------------
1 file changed, 346 insertions(+), 346 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index ef7db8a..b10958b 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -235,6 +235,130 @@ static void v4l_print_audioout(const void *arg, bool write_only)
p->index, p->name, p->capability, p->mode);
}
+static void v4l_print_fmtdesc(const void *arg, bool write_only)
+{
+ const struct v4l2_fmtdesc *p = arg;
+
+ pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%s'\n",
+ p->index, prt_names(p->type, v4l2_type_names),
+ p->flags, (p->pixelformat & 0xff),
+ (p->pixelformat >> 8) & 0xff,
+ (p->pixelformat >> 16) & 0xff,
+ (p->pixelformat >> 24) & 0xff,
+ p->description);
+}
+
+static void v4l_print_format(const void *arg, bool write_only)
+{
+ const struct v4l2_format *p = arg;
+ const struct v4l2_pix_format *pix;
+ const struct v4l2_pix_format_mplane *mp;
+ const struct v4l2_vbi_format *vbi;
+ const struct v4l2_sliced_vbi_format *sliced;
+ const struct v4l2_window *win;
+ const struct v4l2_clip *clip;
+ unsigned i;
+
+ pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ pix = &p->fmt.pix;
+ pr_cont(", width=%u, height=%u, "
+ "pixelformat=%c%c%c%c, field=%s, "
+ "bytesperline=%u sizeimage=%u, colorspace=%d\n",
+ pix->width, pix->height,
+ (pix->pixelformat & 0xff),
+ (pix->pixelformat >> 8) & 0xff,
+ (pix->pixelformat >> 16) & 0xff,
+ (pix->pixelformat >> 24) & 0xff,
+ prt_names(pix->field, v4l2_field_names),
+ pix->bytesperline, pix->sizeimage,
+ pix->colorspace);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ mp = &p->fmt.pix_mp;
+ pr_cont(", width=%u, height=%u, "
+ "format=%c%c%c%c, field=%s, "
+ "colorspace=%d, num_planes=%u\n",
+ mp->width, mp->height,
+ (mp->pixelformat & 0xff),
+ (mp->pixelformat >> 8) & 0xff,
+ (mp->pixelformat >> 16) & 0xff,
+ (mp->pixelformat >> 24) & 0xff,
+ prt_names(mp->field, v4l2_field_names),
+ mp->colorspace, mp->num_planes);
+ for (i = 0; i < mp->num_planes; i++)
+ printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
+ mp->plane_fmt[i].bytesperline,
+ mp->plane_fmt[i].sizeimage);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ win = &p->fmt.win;
+ pr_cont(", wxh=%dx%d, x,y=%d,%d, field=%s, "
+ "chromakey=0x%08x, bitmap=%p, "
+ "global_alpha=0x%02x\n",
+ win->w.width, win->w.height,
+ win->w.left, win->w.top,
+ prt_names(win->field, v4l2_field_names),
+ win->chromakey, win->bitmap, win->global_alpha);
+ clip = win->clips;
+ for (i = 0; i < win->clipcount; i++) {
+ printk(KERN_DEBUG "clip %u: wxh=%dx%d, x,y=%d,%d\n",
+ i, clip->c.width, clip->c.height,
+ clip->c.left, clip->c.top);
+ clip = clip->next;
+ }
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ vbi = &p->fmt.vbi;
+ pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, "
+ "sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n",
+ vbi->sampling_rate, vbi->offset,
+ vbi->samples_per_line,
+ (vbi->sample_format & 0xff),
+ (vbi->sample_format >> 8) & 0xff,
+ (vbi->sample_format >> 16) & 0xff,
+ (vbi->sample_format >> 24) & 0xff,
+ vbi->start[0], vbi->start[1],
+ vbi->count[0], vbi->count[1]);
+ break;
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ sliced = &p->fmt.sliced;
+ pr_cont(", service_set=0x%08x, io_size=%d\n",
+ sliced->service_set, sliced->io_size);
+ for (i = 0; i < 24; i++)
+ printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
+ sliced->service_lines[0][i],
+ sliced->service_lines[1][i]);
+ break;
+ case V4L2_BUF_TYPE_PRIVATE:
+ pr_cont("\n");
+ break;
+ }
+}
+
+static void v4l_print_framebuffer(const void *arg, bool write_only)
+{
+ const struct v4l2_framebuffer *p = arg;
+
+ pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, "
+ "height=%u, pixelformat=%c%c%c%c, "
+ "bytesperline=%u sizeimage=%u, colorspace=%d\n",
+ p->capability, p->flags, p->base,
+ p->fmt.width, p->fmt.height,
+ (p->fmt.pixelformat & 0xff),
+ (p->fmt.pixelformat >> 8) & 0xff,
+ (p->fmt.pixelformat >> 16) & 0xff,
+ (p->fmt.pixelformat >> 24) & 0xff,
+ p->fmt.bytesperline, p->fmt.sizeimage,
+ p->fmt.colorspace);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -312,41 +436,6 @@ static void dbgtimings(struct video_device *vfd,
}
}
-static inline void v4l_print_pix_fmt(struct video_device *vfd,
- struct v4l2_pix_format *fmt)
-{
- dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, "
- "bytesperline=%d sizeimage=%d, colorspace=%d\n",
- fmt->width, fmt->height,
- (fmt->pixelformat & 0xff),
- (fmt->pixelformat >> 8) & 0xff,
- (fmt->pixelformat >> 16) & 0xff,
- (fmt->pixelformat >> 24) & 0xff,
- prt_names(fmt->field, v4l2_field_names),
- fmt->bytesperline, fmt->sizeimage, fmt->colorspace);
-};
-
-static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd,
- struct v4l2_pix_format_mplane *fmt)
-{
- int i;
-
- dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, "
- "colorspace=%d, num_planes=%d\n",
- fmt->width, fmt->height,
- (fmt->pixelformat & 0xff),
- (fmt->pixelformat >> 8) & 0xff,
- (fmt->pixelformat >> 16) & 0xff,
- (fmt->pixelformat >> 24) & 0xff,
- prt_names(fmt->field, v4l2_field_names),
- fmt->colorspace, fmt->num_planes);
-
- for (i = 0; i < fmt->num_planes; ++i)
- dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i,
- fmt->plane_fmt[i].bytesperline,
- fmt->plane_fmt[i].sizeimage);
-}
-
static inline void v4l_print_ext_ctrls(unsigned int cmd,
struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals)
{
@@ -539,6 +628,222 @@ static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_enum_output(file, fh, p);
}
+static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_fmtdesc *p = arg;
+
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
+ break;
+ return ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ if (unlikely(!ops->vidioc_enum_fmt_vid_cap_mplane))
+ break;
+ return ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
+ break;
+ return ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (unlikely(!ops->vidioc_enum_fmt_vid_out))
+ break;
+ return ops->vidioc_enum_fmt_vid_out(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ if (unlikely(!ops->vidioc_enum_fmt_vid_out_mplane))
+ break;
+ return ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_PRIVATE:
+ if (unlikely(!ops->vidioc_enum_fmt_type_private))
+ break;
+ return ops->vidioc_enum_fmt_type_private(file, fh, arg);
+ }
+ return -EINVAL;
+}
+
+static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_format *p = arg;
+
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (unlikely(!ops->vidioc_g_fmt_vid_cap))
+ break;
+ return ops->vidioc_g_fmt_vid_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ if (unlikely(!ops->vidioc_g_fmt_vid_cap_mplane))
+ break;
+ return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (unlikely(!ops->vidioc_g_fmt_vid_overlay))
+ break;
+ return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (unlikely(!ops->vidioc_g_fmt_vid_out))
+ break;
+ return ops->vidioc_g_fmt_vid_out(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ if (unlikely(!ops->vidioc_g_fmt_vid_out_mplane))
+ break;
+ return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ if (unlikely(!ops->vidioc_g_fmt_vid_out_overlay))
+ break;
+ return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_g_fmt_vbi_cap))
+ break;
+ return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_g_fmt_vbi_out))
+ break;
+ return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_cap))
+ break;
+ return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_out))
+ break;
+ return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_PRIVATE:
+ if (unlikely(!ops->vidioc_g_fmt_type_private))
+ break;
+ return ops->vidioc_g_fmt_type_private(file, fh, arg);
+ }
+ return -EINVAL;
+}
+
+static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_format *p = arg;
+
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (unlikely(!ops->vidioc_s_fmt_vid_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix);
+ return ops->vidioc_s_fmt_vid_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix_mp);
+ return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.win);
+ return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (unlikely(!ops->vidioc_s_fmt_vid_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix);
+ return ops->vidioc_s_fmt_vid_out(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix_mp);
+ return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.win);
+ return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_s_fmt_vbi_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_PRIVATE:
+ if (unlikely(!ops->vidioc_s_fmt_type_private))
+ break;
+ return ops->vidioc_s_fmt_type_private(file, fh, arg);
+ }
+ return -EINVAL;
+}
+
+static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_format *p = arg;
+
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (unlikely(!ops->vidioc_try_fmt_vid_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix);
+ return ops->vidioc_try_fmt_vid_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+ if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix_mp);
+ return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.win);
+ return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (unlikely(!ops->vidioc_try_fmt_vid_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix);
+ return ops->vidioc_try_fmt_vid_out(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+ if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.pix_mp);
+ return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.win);
+ return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_try_fmt_vbi_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.vbi);
+ return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
+ break;
+ CLEAR_AFTER_FIELD(p, fmt.sliced);
+ return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
+ case V4L2_BUF_TYPE_PRIVATE:
+ if (unlikely(!ops->vidioc_try_fmt_type_private))
+ break;
+ return ops->vidioc_try_fmt_type_private(file, fh, arg);
+ }
+ return -EINVAL;
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -591,13 +896,13 @@ struct v4l2_ioctl_info {
static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
- IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
- IOCTL_INFO(VIDIOC_G_FMT, INFO_FL_CLEAR(v4l2_format, type)),
- IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
+ IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, INFO_FL_CLEAR(v4l2_format, type)),
+ IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYBUF, INFO_FL_CLEAR(v4l2_buffer, length)),
- IOCTL_INFO(VIDIOC_G_FBUF, 0),
- IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
+ IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QBUF, 0),
IOCTL_INFO(VIDIOC_DQBUF, 0),
@@ -636,7 +941,7 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYSTD, 0),
- IOCTL_INFO(VIDIOC_TRY_FMT, 0),
+ IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
@@ -777,288 +1082,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- /* --- capture ioctls ---------------------------------------- */
- case VIDIOC_ENUM_FMT:
- {
- struct v4l2_fmtdesc *f = arg;
-
- ret = -EINVAL;
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (likely(ops->vidioc_enum_fmt_vid_cap))
- ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (likely(ops->vidioc_enum_fmt_vid_cap_mplane))
- ret = ops->vidioc_enum_fmt_vid_cap_mplane(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (likely(ops->vidioc_enum_fmt_vid_overlay))
- ret = ops->vidioc_enum_fmt_vid_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (likely(ops->vidioc_enum_fmt_vid_out))
- ret = ops->vidioc_enum_fmt_vid_out(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (likely(ops->vidioc_enum_fmt_vid_out_mplane))
- ret = ops->vidioc_enum_fmt_vid_out_mplane(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (likely(ops->vidioc_enum_fmt_type_private))
- ret = ops->vidioc_enum_fmt_type_private(file,
- fh, f);
- break;
- default:
- break;
- }
- if (likely(!ret))
- dbgarg(cmd, "index=%d, type=%d, flags=%d, "
- "pixelformat=%c%c%c%c, description='%s'\n",
- f->index, f->type, f->flags,
- (f->pixelformat & 0xff),
- (f->pixelformat >> 8) & 0xff,
- (f->pixelformat >> 16) & 0xff,
- (f->pixelformat >> 24) & 0xff,
- f->description);
- break;
- }
- case VIDIOC_G_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
-
- /* FIXME: Should be one dump per type */
- dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names));
-
- ret = -EINVAL;
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (ops->vidioc_g_fmt_vid_cap)
- ret = ops->vidioc_g_fmt_vid_cap(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- if (ops->vidioc_g_fmt_vid_cap_mplane)
- ret = ops->vidioc_g_fmt_vid_cap_mplane(file,
- fh, f);
- if (!ret)
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (likely(ops->vidioc_g_fmt_vid_overlay))
- ret = ops->vidioc_g_fmt_vid_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (ops->vidioc_g_fmt_vid_out)
- ret = ops->vidioc_g_fmt_vid_out(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- if (ops->vidioc_g_fmt_vid_out_mplane)
- ret = ops->vidioc_g_fmt_vid_out_mplane(file,
- fh, f);
- if (!ret)
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (likely(ops->vidioc_g_fmt_vid_out_overlay))
- ret = ops->vidioc_g_fmt_vid_out_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (likely(ops->vidioc_g_fmt_vbi_cap))
- ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (likely(ops->vidioc_g_fmt_vbi_out))
- ret = ops->vidioc_g_fmt_vbi_out(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (likely(ops->vidioc_g_fmt_sliced_vbi_cap))
- ret = ops->vidioc_g_fmt_sliced_vbi_cap(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (likely(ops->vidioc_g_fmt_sliced_vbi_out))
- ret = ops->vidioc_g_fmt_sliced_vbi_out(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (likely(ops->vidioc_g_fmt_type_private))
- ret = ops->vidioc_g_fmt_type_private(file,
- fh, f);
- break;
- }
- break;
- }
- case VIDIOC_S_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
-
- ret = -EINVAL;
-
- /* FIXME: Should be one dump per type */
- dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names));
-
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.pix);
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- if (ops->vidioc_s_fmt_vid_cap)
- ret = ops->vidioc_s_fmt_vid_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- CLEAR_AFTER_FIELD(f, fmt.pix_mp);
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- if (ops->vidioc_s_fmt_vid_cap_mplane)
- ret = ops->vidioc_s_fmt_vid_cap_mplane(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- CLEAR_AFTER_FIELD(f, fmt.win);
- if (ops->vidioc_s_fmt_vid_overlay)
- ret = ops->vidioc_s_fmt_vid_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.pix);
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- if (ops->vidioc_s_fmt_vid_out)
- ret = ops->vidioc_s_fmt_vid_out(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- CLEAR_AFTER_FIELD(f, fmt.pix_mp);
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- if (ops->vidioc_s_fmt_vid_out_mplane)
- ret = ops->vidioc_s_fmt_vid_out_mplane(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- CLEAR_AFTER_FIELD(f, fmt.win);
- if (ops->vidioc_s_fmt_vid_out_overlay)
- ret = ops->vidioc_s_fmt_vid_out_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.vbi);
- if (likely(ops->vidioc_s_fmt_vbi_cap))
- ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.vbi);
- if (likely(ops->vidioc_s_fmt_vbi_out))
- ret = ops->vidioc_s_fmt_vbi_out(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.sliced);
- if (likely(ops->vidioc_s_fmt_sliced_vbi_cap))
- ret = ops->vidioc_s_fmt_sliced_vbi_cap(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.sliced);
- if (likely(ops->vidioc_s_fmt_sliced_vbi_out))
- ret = ops->vidioc_s_fmt_sliced_vbi_out(file,
- fh, f);
-
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */
- if (likely(ops->vidioc_s_fmt_type_private))
- ret = ops->vidioc_s_fmt_type_private(file,
- fh, f);
- break;
- }
- break;
- }
- case VIDIOC_TRY_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
-
- /* FIXME: Should be one dump per type */
- dbgarg(cmd, "type=%s\n", prt_names(f->type,
- v4l2_type_names));
- ret = -EINVAL;
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.pix);
- if (ops->vidioc_try_fmt_vid_cap)
- ret = ops->vidioc_try_fmt_vid_cap(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
- CLEAR_AFTER_FIELD(f, fmt.pix_mp);
- if (ops->vidioc_try_fmt_vid_cap_mplane)
- ret = ops->vidioc_try_fmt_vid_cap_mplane(file,
- fh, f);
- if (!ret)
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- CLEAR_AFTER_FIELD(f, fmt.win);
- if (likely(ops->vidioc_try_fmt_vid_overlay))
- ret = ops->vidioc_try_fmt_vid_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.pix);
- if (ops->vidioc_try_fmt_vid_out)
- ret = ops->vidioc_try_fmt_vid_out(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd, &f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- CLEAR_AFTER_FIELD(f, fmt.pix_mp);
- if (ops->vidioc_try_fmt_vid_out_mplane)
- ret = ops->vidioc_try_fmt_vid_out_mplane(file,
- fh, f);
- if (!ret)
- v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- CLEAR_AFTER_FIELD(f, fmt.win);
- if (likely(ops->vidioc_try_fmt_vid_out_overlay))
- ret = ops->vidioc_try_fmt_vid_out_overlay(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.vbi);
- if (likely(ops->vidioc_try_fmt_vbi_cap))
- ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.vbi);
- if (likely(ops->vidioc_try_fmt_vbi_out))
- ret = ops->vidioc_try_fmt_vbi_out(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- CLEAR_AFTER_FIELD(f, fmt.sliced);
- if (likely(ops->vidioc_try_fmt_sliced_vbi_cap))
- ret = ops->vidioc_try_fmt_sliced_vbi_cap(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- CLEAR_AFTER_FIELD(f, fmt.sliced);
- if (likely(ops->vidioc_try_fmt_sliced_vbi_out))
- ret = ops->vidioc_try_fmt_sliced_vbi_out(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */
- if (likely(ops->vidioc_try_fmt_type_private))
- ret = ops->vidioc_try_fmt_type_private(file,
- fh, f);
- break;
- }
- break;
- }
/* FIXME: Those buf reqs could be handled here,
with some changes on videobuf to allow its header to be included at
videodev2.h or being merged at videodev2.
@@ -1128,29 +1151,6 @@ static long __video_do_ioctl(struct file *file,
ret = ops->vidioc_overlay(file, fh, *i);
break;
}
- case VIDIOC_G_FBUF:
- {
- struct v4l2_framebuffer *p = arg;
-
- ret = ops->vidioc_g_fbuf(file, fh, arg);
- if (!ret) {
- dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n",
- p->capability, p->flags,
- (unsigned long)p->base);
- v4l_print_pix_fmt(vfd, &p->fmt);
- }
- break;
- }
- case VIDIOC_S_FBUF:
- {
- struct v4l2_framebuffer *p = arg;
-
- dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n",
- p->capability, p->flags, (unsigned long)p->base);
- v4l_print_pix_fmt(vfd, &p->fmt);
- ret = ops->vidioc_s_fbuf(file, fh, arg);
- break;
- }
case VIDIOC_STREAMON:
{
enum v4l2_buf_type i = *(int *)arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 09/34] v4l2-ioctl.c: use the new table for overlay/streamon/off ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (6 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 08/34] v4l2-ioctl.c: use the new table for format/framebuffer ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 10/34] v4l2-ioctl.c: use the new table for std/tuner/modulator ioctls Hans Verkuil
` (24 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 47 ++++++++++++++++----------------------
1 file changed, 20 insertions(+), 27 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index b10958b..ab4a743 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -359,6 +359,11 @@ static void v4l_print_framebuffer(const void *arg, bool write_only)
p->fmt.colorspace);
}
+static void v4l_print_buftype(const void *arg, bool write_only)
+{
+ pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -844,6 +849,18 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
return -EINVAL;
}
+static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
+}
+
+static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -903,11 +920,11 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_QUERYBUF, INFO_FL_CLEAR(v4l2_buffer, length)),
IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_OVERLAY, vidioc_overlay, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QBUF, 0),
IOCTL_INFO(VIDIOC_DQBUF, 0),
- IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_PARM, INFO_FL_CLEAR(v4l2_streamparm, type)),
IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_STD, 0),
@@ -1143,30 +1160,6 @@ static long __video_do_ioctl(struct file *file,
dbgbuf(cmd, vfd, p);
break;
}
- case VIDIOC_OVERLAY:
- {
- int *i = arg;
-
- dbgarg(cmd, "value=%d\n", *i);
- ret = ops->vidioc_overlay(file, fh, *i);
- break;
- }
- case VIDIOC_STREAMON:
- {
- enum v4l2_buf_type i = *(int *)arg;
-
- dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
- ret = ops->vidioc_streamon(file, fh, i);
- break;
- }
- case VIDIOC_STREAMOFF:
- {
- enum v4l2_buf_type i = *(int *)arg;
-
- dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
- ret = ops->vidioc_streamoff(file, fh, i);
- break;
- }
/* ---------- tv norms ---------- */
case VIDIOC_ENUMSTD:
{
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 10/34] v4l2-ioctl.c: use the new table for std/tuner/modulator ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (7 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 09/34] v4l2-ioctl.c: use the new table for overlay/streamon/off ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 11/34] v4l2-ioctl.c: use the new table for queuing/parm ioctls Hans Verkuil
` (23 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 430 +++++++++++++++++++-------------------
1 file changed, 220 insertions(+), 210 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index ab4a743..2a5ed40 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -364,6 +364,68 @@ static void v4l_print_buftype(const void *arg, bool write_only)
pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
}
+static void v4l_print_modulator(const void *arg, bool write_only)
+{
+ const struct v4l2_modulator *p = arg;
+
+ if (write_only)
+ pr_cont("index=%u, txsubchans=0x%x", p->index, p->txsubchans);
+ else
+ pr_cont("index=%u, name=%s, capability=0x%x, "
+ "rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
+ p->index, p->name, p->capability,
+ p->rangelow, p->rangehigh, p->txsubchans);
+}
+
+static void v4l_print_tuner(const void *arg, bool write_only)
+{
+ const struct v4l2_tuner *p = arg;
+
+ if (write_only)
+ pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
+ else
+ pr_cont("index=%u, name=%s, type=%u, capability=0x%x, "
+ "rangelow=%u, rangehigh=%u, signal=%u, afc=%d, "
+ "rxsubchans=0x%x, audmode=%u\n",
+ p->index, p->name, p->type,
+ p->capability, p->rangelow,
+ p->rangehigh, p->signal, p->afc,
+ p->rxsubchans, p->audmode);
+}
+
+static void v4l_print_frequency(const void *arg, bool write_only)
+{
+ const struct v4l2_frequency *p = arg;
+
+ pr_cont("tuner=%u, type=%u, frequency=%u\n",
+ p->tuner, p->type, p->frequency);
+}
+
+static void v4l_print_standard(const void *arg, bool write_only)
+{
+ const struct v4l2_standard *p = arg;
+
+ pr_cont("index=%u, id=0x%Lx, name=%s, fps=%u/%u, "
+ "framelines=%u\n", p->index,
+ (unsigned long long)p->id, p->name,
+ p->frameperiod.numerator,
+ p->frameperiod.denominator,
+ p->framelines);
+}
+
+static void v4l_print_std(const void *arg, bool write_only)
+{
+ pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
+}
+
+static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
+{
+ const struct v4l2_hw_freq_seek *p = arg;
+
+ pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n",
+ p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -861,6 +923,153 @@ static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
}
+static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_tuner *p = arg;
+
+ p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ return ops->vidioc_g_tuner(file, fh, p);
+}
+
+static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_tuner *p = arg;
+
+ p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ return ops->vidioc_s_tuner(file, fh, p);
+}
+
+static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_frequency *p = arg;
+
+ p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ return ops->vidioc_g_frequency(file, fh, p);
+}
+
+static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_frequency *p = arg;
+ enum v4l2_tuner_type type;
+
+ type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ if (p->type != type)
+ return -EINVAL;
+ return ops->vidioc_s_frequency(file, fh, p);
+}
+
+static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_standard *p = arg;
+ v4l2_std_id id = vfd->tvnorms, curr_id = 0;
+ unsigned int index = p->index, i, j = 0;
+ const char *descr = "";
+
+ /* Return norm array in a canonical way */
+ for (i = 0; i <= index && id; i++) {
+ /* last std value in the standards array is 0, so this
+ while always ends there since (id & 0) == 0. */
+ while ((id & standards[j].std) != standards[j].std)
+ j++;
+ curr_id = standards[j].std;
+ descr = standards[j].descr;
+ j++;
+ if (curr_id == 0)
+ break;
+ if (curr_id != V4L2_STD_PAL &&
+ curr_id != V4L2_STD_SECAM &&
+ curr_id != V4L2_STD_NTSC)
+ id &= ~curr_id;
+ }
+ if (i <= index)
+ return -EINVAL;
+
+ v4l2_video_std_construct(p, curr_id, descr);
+ return 0;
+}
+
+static int v4l_g_std(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ v4l2_std_id *id = arg;
+
+ /* Calls the specific handler */
+ if (ops->vidioc_g_std)
+ return ops->vidioc_g_std(file, fh, arg);
+ if (vfd->current_norm) {
+ *id = vfd->current_norm;
+ return 0;
+ }
+ return -ENOTTY;
+}
+
+static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ v4l2_std_id *id = arg, norm;
+ int ret;
+
+ norm = (*id) & vfd->tvnorms;
+ if (vfd->tvnorms && !norm) /* Check if std is supported */
+ return -EINVAL;
+
+ /* Calls the specific handler */
+ ret = ops->vidioc_s_std(file, fh, &norm);
+
+ /* Updates standard information */
+ if (ret >= 0)
+ vfd->current_norm = norm;
+ return ret;
+}
+
+static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ v4l2_std_id *p = arg;
+
+ /*
+ * If nothing detected, it should return all supported
+ * standard.
+ * Drivers just need to mask the std argument, in order
+ * to remove the standards that don't apply from the mask.
+ * This means that tuners, audio and video decoders can join
+ * their efforts to improve the standards detection.
+ */
+ *p = vfd->tvnorms;
+ return ops->vidioc_querystd(file, fh, arg);
+}
+
+static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_hw_freq_seek *p = arg;
+ enum v4l2_tuner_type type;
+
+ type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ if (p->type != type)
+ return -EINVAL;
+ return ops->vidioc_s_hw_freq_seek(file, fh, p);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -927,14 +1136,14 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_PARM, INFO_FL_CLEAR(v4l2_streamparm, type)),
IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_STD, 0),
- IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUMSTD, INFO_FL_CLEAR(v4l2_standard, index)),
+ IOCTL_INFO_FNC(VIDIOC_G_STD, v4l_g_std, v4l_print_std, 0),
+ IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_G_TUNER, INFO_FL_CLEAR(v4l2_tuner, index)),
- IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
+ IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
@@ -946,10 +1155,10 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_MODULATOR, INFO_FL_CLEAR(v4l2_modulator, index)),
- IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_FREQUENCY, INFO_FL_CLEAR(v4l2_frequency, tuner)),
- IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_MODULATOR, vidioc_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
+ IOCTL_INFO_STD(VIDIOC_S_MODULATOR, vidioc_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
+ IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_CROPCAP, INFO_FL_CLEAR(v4l2_cropcap, type)),
IOCTL_INFO(VIDIOC_G_CROP, INFO_FL_CLEAR(v4l2_crop, type)),
IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO),
@@ -957,7 +1166,7 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYSTD, 0),
+ IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
@@ -978,7 +1187,7 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
- IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_DV_PRESET, 0),
@@ -1160,102 +1369,6 @@ static long __video_do_ioctl(struct file *file,
dbgbuf(cmd, vfd, p);
break;
}
- /* ---------- tv norms ---------- */
- case VIDIOC_ENUMSTD:
- {
- struct v4l2_standard *p = arg;
- v4l2_std_id id = vfd->tvnorms, curr_id = 0;
- unsigned int index = p->index, i, j = 0;
- const char *descr = "";
-
- if (id == 0)
- break;
- ret = -EINVAL;
-
- /* Return norm array in a canonical way */
- for (i = 0; i <= index && id; i++) {
- /* last std value in the standards array is 0, so this
- while always ends there since (id & 0) == 0. */
- while ((id & standards[j].std) != standards[j].std)
- j++;
- curr_id = standards[j].std;
- descr = standards[j].descr;
- j++;
- if (curr_id == 0)
- break;
- if (curr_id != V4L2_STD_PAL &&
- curr_id != V4L2_STD_SECAM &&
- curr_id != V4L2_STD_NTSC)
- id &= ~curr_id;
- }
- if (i <= index)
- break;
-
- v4l2_video_std_construct(p, curr_id, descr);
-
- dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, "
- "framelines=%d\n", p->index,
- (unsigned long long)p->id, p->name,
- p->frameperiod.numerator,
- p->frameperiod.denominator,
- p->framelines);
-
- ret = 0;
- break;
- }
- case VIDIOC_G_STD:
- {
- v4l2_std_id *id = arg;
-
- /* Calls the specific handler */
- if (ops->vidioc_g_std)
- ret = ops->vidioc_g_std(file, fh, id);
- else if (vfd->current_norm) {
- ret = 0;
- *id = vfd->current_norm;
- }
-
- if (likely(!ret))
- dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id);
- break;
- }
- case VIDIOC_S_STD:
- {
- v4l2_std_id *id = arg, norm;
-
- dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id);
-
- ret = -EINVAL;
- norm = (*id) & vfd->tvnorms;
- if (vfd->tvnorms && !norm) /* Check if std is supported */
- break;
-
- /* Calls the specific handler */
- ret = ops->vidioc_s_std(file, fh, &norm);
-
- /* Updates standard information */
- if (ret >= 0)
- vfd->current_norm = norm;
- break;
- }
- case VIDIOC_QUERYSTD:
- {
- v4l2_std_id *p = arg;
-
- /*
- * If nothing detected, it should return all supported
- * Drivers just need to mask the std argument, in order
- * to remove the standards that don't apply from the mask.
- * This means that tuners, audio and video decoders can join
- * their efforts to improve the standards detection
- */
- *p = vfd->tvnorms;
- ret = ops->vidioc_querystd(file, fh, arg);
- if (!ret)
- dbgarg(cmd, "detected std=%08Lx\n",
- (unsigned long long)*p);
- break;
- }
/* --- controls ---------------------------------------------- */
case VIDIOC_QUERYCTRL:
@@ -1426,31 +1539,6 @@ static long __video_do_ioctl(struct file *file,
p->id, p->index);
break;
}
- case VIDIOC_G_MODULATOR:
- {
- struct v4l2_modulator *p = arg;
-
- ret = ops->vidioc_g_modulator(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, "
- "capability=%d, rangelow=%d,"
- " rangehigh=%d, txsubchans=%d\n",
- p->index, p->name, p->capability,
- p->rangelow, p->rangehigh,
- p->txsubchans);
- break;
- }
- case VIDIOC_S_MODULATOR:
- {
- struct v4l2_modulator *p = arg;
-
- dbgarg(cmd, "index=%d, name=%s, capability=%d, "
- "rangelow=%d, rangehigh=%d, txsubchans=%d\n",
- p->index, p->name, p->capability, p->rangelow,
- p->rangehigh, p->txsubchans);
- ret = ops->vidioc_s_modulator(file, fh, p);
- break;
- }
case VIDIOC_G_CROP:
{
struct v4l2_crop *p = arg;
@@ -1683,68 +1771,6 @@ static long __video_do_ioctl(struct file *file,
ret = ops->vidioc_s_parm(file, fh, p);
break;
}
- case VIDIOC_G_TUNER:
- {
- struct v4l2_tuner *p = arg;
-
- p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
- V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
- ret = ops->vidioc_g_tuner(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, type=%d, "
- "capability=0x%x, rangelow=%d, "
- "rangehigh=%d, signal=%d, afc=%d, "
- "rxsubchans=0x%x, audmode=%d\n",
- p->index, p->name, p->type,
- p->capability, p->rangelow,
- p->rangehigh, p->signal, p->afc,
- p->rxsubchans, p->audmode);
- break;
- }
- case VIDIOC_S_TUNER:
- {
- struct v4l2_tuner *p = arg;
-
- p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
- V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
- dbgarg(cmd, "index=%d, name=%s, type=%d, "
- "capability=0x%x, rangelow=%d, "
- "rangehigh=%d, signal=%d, afc=%d, "
- "rxsubchans=0x%x, audmode=%d\n",
- p->index, p->name, p->type,
- p->capability, p->rangelow,
- p->rangehigh, p->signal, p->afc,
- p->rxsubchans, p->audmode);
- ret = ops->vidioc_s_tuner(file, fh, p);
- break;
- }
- case VIDIOC_G_FREQUENCY:
- {
- struct v4l2_frequency *p = arg;
-
- p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
- V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
- ret = ops->vidioc_g_frequency(file, fh, p);
- if (!ret)
- dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n",
- p->tuner, p->type, p->frequency);
- break;
- }
- case VIDIOC_S_FREQUENCY:
- {
- struct v4l2_frequency *p = arg;
- enum v4l2_tuner_type type;
-
- type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
- V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
- dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n",
- p->tuner, p->type, p->frequency);
- if (p->type != type)
- ret = -EINVAL;
- else
- ret = ops->vidioc_s_frequency(file, fh, p);
- break;
- }
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *p = arg;
@@ -1804,22 +1830,6 @@ static long __video_do_ioctl(struct file *file,
dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
break;
}
- case VIDIOC_S_HW_FREQ_SEEK:
- {
- struct v4l2_hw_freq_seek *p = arg;
- enum v4l2_tuner_type type;
-
- type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
- V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
- dbgarg(cmd,
- "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n",
- p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing);
- if (p->type != type)
- ret = -EINVAL;
- else
- ret = ops->vidioc_s_hw_freq_seek(file, fh, p);
- break;
- }
case VIDIOC_ENUM_FRAMESIZES:
{
struct v4l2_frmsizeenum *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 11/34] v4l2-ioctl.c: use the new table for queuing/parm ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (8 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 10/34] v4l2-ioctl.c: use the new table for std/tuner/modulator ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 12/34] v4l2-ioctl.c: use the new table for control ioctls Hans Verkuil
` (22 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 315 ++++++++++++++++++++------------------
1 file changed, 165 insertions(+), 150 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 2a5ed40..dca495a 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -426,48 +426,97 @@ static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing);
}
-static void v4l_print_u32(const void *arg, bool write_only)
+static void v4l_print_requestbuffers(const void *arg, bool write_only)
{
- pr_cont("value=%u\n", *(const u32 *)arg);
+ const struct v4l2_requestbuffers *p = arg;
+
+ pr_cont("count=%d, type=%s, memory=%s\n",
+ p->count,
+ prt_names(p->type, v4l2_type_names),
+ prt_names(p->memory, v4l2_memory_names));
}
-static void dbgbuf(unsigned int cmd, struct video_device *vfd,
- struct v4l2_buffer *p)
+static void v4l_print_buffer(const void *arg, bool write_only)
{
- struct v4l2_timecode *tc = &p->timecode;
- struct v4l2_plane *plane;
+ const struct v4l2_buffer *p = arg;
+ const struct v4l2_timecode *tc = &p->timecode;
+ const struct v4l2_plane *plane;
int i;
- dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, "
- "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n",
+ pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, "
+ "flags=0x%08x, field=%s, sequence=%d, memory=%s",
p->timestamp.tv_sec / 3600,
(int)(p->timestamp.tv_sec / 60) % 60,
(int)(p->timestamp.tv_sec % 60),
(long)p->timestamp.tv_usec,
p->index,
prt_names(p->type, v4l2_type_names),
- p->flags, p->field, p->sequence,
- prt_names(p->memory, v4l2_memory_names));
+ p->flags, prt_names(p->field, v4l2_field_names),
+ p->sequence, prt_names(p->memory, v4l2_memory_names));
if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
+ pr_cont("\n");
for (i = 0; i < p->length; ++i) {
plane = &p->m.planes[i];
- dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x "
- "offset/userptr=0x%08lx, length=%d\n",
+ printk(KERN_DEBUG
+ "plane %d: bytesused=%d, data_offset=0x%08x "
+ "offset/userptr=0x%lx, length=%d\n",
i, plane->bytesused, plane->data_offset,
plane->m.userptr, plane->length);
}
} else {
- dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n",
+ pr_cont("bytesused=%d, offset/userptr=0x%lx, length=%d\n",
p->bytesused, p->m.userptr, p->length);
}
- dbgarg2("timecode=%02d:%02d:%02d type=%d, "
- "flags=0x%08d, frames=%d, userbits=0x%08x\n",
+ printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, "
+ "flags=0x%08x, frames=%d, userbits=0x%08x\n",
tc->hours, tc->minutes, tc->seconds,
tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
}
+static void v4l_print_create_buffers(const void *arg, bool write_only)
+{
+ const struct v4l2_create_buffers *p = arg;
+
+ pr_cont("index=%d, count=%d, memory=%s, ",
+ p->index, p->count,
+ prt_names(p->memory, v4l2_memory_names));
+ v4l_print_format(&p->format, write_only);
+}
+
+static void v4l_print_streamparm(const void *arg, bool write_only)
+{
+ const struct v4l2_streamparm *p = arg;
+
+ pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
+
+ if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ const struct v4l2_captureparm *c = &p->parm.capture;
+
+ pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, "
+ "extendedmode=%d, readbuffers=%d\n",
+ c->capability, c->capturemode,
+ c->timeperframe.numerator, c->timeperframe.denominator,
+ c->extendedmode, c->readbuffers);
+ } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
+ p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ const struct v4l2_outputparm *c = &p->parm.output;
+
+ pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, "
+ "extendedmode=%d, writebuffers=%d\n",
+ c->capability, c->outputmode,
+ c->timeperframe.numerator, c->timeperframe.denominator,
+ c->extendedmode, c->writebuffers);
+ }
+}
+
+static void v4l_print_u32(const void *arg, bool write_only)
+{
+ pr_cont("value=%u\n", *(const u32 *)arg);
+}
+
static inline void dbgrect(struct video_device *vfd, char *s,
struct v4l2_rect *r)
{
@@ -1070,6 +1119,99 @@ static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_s_hw_freq_seek(file, fh, p);
}
+static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_requestbuffers *p = arg;
+ int ret = check_fmt(ops, p->type);
+
+ if (ret)
+ return ret;
+
+ if (p->type < V4L2_BUF_TYPE_PRIVATE)
+ CLEAR_AFTER_FIELD(p, memory);
+
+ return ops->vidioc_reqbufs(file, fh, p);
+}
+
+static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_buffer *p = arg;
+ int ret = check_fmt(ops, p->type);
+
+ return ret ? ret : ops->vidioc_querybuf(file, fh, p);
+}
+
+static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_buffer *p = arg;
+ int ret = check_fmt(ops, p->type);
+
+ return ret ? ret : ops->vidioc_qbuf(file, fh, p);
+}
+
+static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_buffer *p = arg;
+ int ret = check_fmt(ops, p->type);
+
+ return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
+}
+
+static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_create_buffers *create = arg;
+ int ret = check_fmt(ops, create->format.type);
+
+ return ret ? ret : ops->vidioc_create_bufs(file, fh, create);
+}
+
+static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_buffer *b = arg;
+ int ret = check_fmt(ops, b->type);
+
+ return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
+}
+
+static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_streamparm *p = arg;
+ v4l2_std_id std;
+ int ret = check_fmt(ops, p->type);
+
+ if (ret)
+ return ret;
+ if (ops->vidioc_g_parm)
+ return ops->vidioc_g_parm(file, fh, p);
+ std = vfd->current_norm;
+ if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
+ if (ops->vidioc_g_std)
+ ret = ops->vidioc_g_std(file, fh, &std);
+ if (ret == 0)
+ v4l2_video_std_frame_period(std,
+ &p->parm.capture.timeperframe);
+ return ret;
+}
+
+static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_streamparm *p = arg;
+ int ret = check_fmt(ops, p->type);
+
+ return ret ? ret : ops->vidioc_s_parm(file, fh, p);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -1125,17 +1267,17 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, INFO_FL_CLEAR(v4l2_format, type)),
IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYBUF, INFO_FL_CLEAR(v4l2_buffer, length)),
+ IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_CLEAR(v4l2_buffer, length)),
IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_OVERLAY, vidioc_overlay, v4l_print_u32, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QBUF, 0),
- IOCTL_INFO(VIDIOC_DQBUF, 0),
+ IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, 0),
+ IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, 0),
IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_PARM, INFO_FL_CLEAR(v4l2_streamparm, type)),
- IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
+ IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_G_STD, v4l_g_std, v4l_print_std, 0),
IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
@@ -1197,8 +1339,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_DQEVENT, 0),
IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0),
IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
- IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_PREPARE_BUF, 0),
+ IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, 0),
IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0),
IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0),
IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0),
@@ -1308,68 +1450,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- /* FIXME: Those buf reqs could be handled here,
- with some changes on videobuf to allow its header to be included at
- videodev2.h or being merged at videodev2.
- */
- case VIDIOC_REQBUFS:
- {
- struct v4l2_requestbuffers *p = arg;
-
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
-
- if (p->type < V4L2_BUF_TYPE_PRIVATE)
- CLEAR_AFTER_FIELD(p, memory);
-
- ret = ops->vidioc_reqbufs(file, fh, p);
- dbgarg(cmd, "count=%d, type=%s, memory=%s\n",
- p->count,
- prt_names(p->type, v4l2_type_names),
- prt_names(p->memory, v4l2_memory_names));
- break;
- }
- case VIDIOC_QUERYBUF:
- {
- struct v4l2_buffer *p = arg;
-
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
-
- ret = ops->vidioc_querybuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd, vfd, p);
- break;
- }
- case VIDIOC_QBUF:
- {
- struct v4l2_buffer *p = arg;
-
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
-
- ret = ops->vidioc_qbuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd, vfd, p);
- break;
- }
- case VIDIOC_DQBUF:
- {
- struct v4l2_buffer *p = arg;
-
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
-
- ret = ops->vidioc_dqbuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd, vfd, p);
- break;
- }
-
/* --- controls ---------------------------------------------- */
case VIDIOC_QUERYCTRL:
{
@@ -1732,45 +1812,6 @@ static long __video_do_ioctl(struct file *file,
dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
break;
}
- case VIDIOC_G_PARM:
- {
- struct v4l2_streamparm *p = arg;
-
- if (ops->vidioc_g_parm) {
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
- ret = ops->vidioc_g_parm(file, fh, p);
- } else {
- v4l2_std_id std = vfd->current_norm;
-
- ret = -EINVAL;
- if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- break;
-
- ret = 0;
- if (ops->vidioc_g_std)
- ret = ops->vidioc_g_std(file, fh, &std);
- if (ret == 0)
- v4l2_video_std_frame_period(std,
- &p->parm.capture.timeperframe);
- }
-
- dbgarg(cmd, "type=%d\n", p->type);
- break;
- }
- case VIDIOC_S_PARM:
- {
- struct v4l2_streamparm *p = arg;
-
- ret = check_fmt(ops, p->type);
- if (ret)
- break;
-
- dbgarg(cmd, "type=%d\n", p->type);
- ret = ops->vidioc_s_parm(file, fh, p);
- break;
- }
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *p = arg;
@@ -2051,32 +2092,6 @@ static long __video_do_ioctl(struct file *file,
dbgarg(cmd, "type=0x%8.8x", sub->type);
break;
}
- case VIDIOC_CREATE_BUFS:
- {
- struct v4l2_create_buffers *create = arg;
-
- ret = check_fmt(ops, create->format.type);
- if (ret)
- break;
-
- ret = ops->vidioc_create_bufs(file, fh, create);
-
- dbgarg(cmd, "count=%d @ %d\n", create->count, create->index);
- break;
- }
- case VIDIOC_PREPARE_BUF:
- {
- struct v4l2_buffer *b = arg;
-
- ret = check_fmt(ops, b->type);
- if (ret)
- break;
-
- ret = ops->vidioc_prepare_buf(file, fh, b);
-
- dbgarg(cmd, "index=%d", b->index);
- break;
- }
default:
if (!ops->vidioc_default)
break;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 12/34] v4l2-ioctl.c: use the new table for control ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (9 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 11/34] v4l2-ioctl.c: use the new table for queuing/parm ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 13/34] v4l2-ioctl.c: use the new table for selection ioctls Hans Verkuil
` (21 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 395 +++++++++++++++++++-------------------
1 file changed, 198 insertions(+), 197 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index dca495a..c5e772a 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -512,6 +512,49 @@ static void v4l_print_streamparm(const void *arg, bool write_only)
}
}
+static void v4l_print_queryctrl(const void *arg, bool write_only)
+{
+ const struct v4l2_queryctrl *p = arg;
+
+ pr_cont("id=0x%x, type=%d, name=%s, min/max=%d/%d, "
+ "step=%d, default=%d, flags=0x%08x\n",
+ p->id, p->type, p->name,
+ p->minimum, p->maximum,
+ p->step, p->default_value, p->flags);
+}
+
+static void v4l_print_querymenu(const void *arg, bool write_only)
+{
+ const struct v4l2_querymenu *p = arg;
+
+ pr_cont("id=0x%x, index=%d\n", p->id, p->index);
+}
+
+static void v4l_print_control(const void *arg, bool write_only)
+{
+ const struct v4l2_control *p = arg;
+
+ pr_cont("id=0x%x, value=%d\n", p->id, p->value);
+}
+
+static void v4l_print_ext_controls(const void *arg, bool write_only)
+{
+ const struct v4l2_ext_controls *p = arg;
+ int i;
+
+ pr_cont("class=0x%x, count=%d, error_idx=%d",
+ p->ctrl_class, p->count, p->error_idx);
+ for (i = 0; i < p->count; i++) {
+ if (p->controls[i].size)
+ pr_cont(", id/val=0x%x/0x%x",
+ p->controls[i].id, p->controls[i].value);
+ else
+ pr_cont(", id/size=0x%x/%u",
+ p->controls[i].id, p->controls[i].size);
+ }
+ pr_cont("\n");
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -552,27 +595,7 @@ static void dbgtimings(struct video_device *vfd,
}
}
-static inline void v4l_print_ext_ctrls(unsigned int cmd,
- struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals)
-{
- __u32 i;
-
- if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG))
- return;
- dbgarg(cmd, "");
- printk(KERN_CONT "class=0x%x", c->ctrl_class);
- for (i = 0; i < c->count; i++) {
- if (show_vals && !c->controls[i].size)
- printk(KERN_CONT " id/val=0x%x/0x%x",
- c->controls[i].id, c->controls[i].value);
- else
- printk(KERN_CONT " id=0x%x,size=%u",
- c->controls[i].id, c->controls[i].size);
- }
- printk(KERN_CONT "\n");
-};
-
-static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
+static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
{
__u32 i;
@@ -1212,6 +1235,153 @@ static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
return ret ? ret : ops->vidioc_s_parm(file, fh, p);
}
+static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_queryctrl *p = arg;
+ struct v4l2_fh *vfh = fh;
+
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_queryctrl(vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_queryctrl(vfd->ctrl_handler, p);
+ if (ops->vidioc_queryctrl)
+ return ops->vidioc_queryctrl(file, fh, p);
+ return -ENOTTY;
+}
+
+static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_querymenu *p = arg;
+ struct v4l2_fh *vfh = fh;
+
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_querymenu(vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_querymenu(vfd->ctrl_handler, p);
+ if (ops->vidioc_querymenu)
+ return ops->vidioc_querymenu(file, fh, p);
+ return -ENOTTY;
+}
+
+static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_control *p = arg;
+ struct v4l2_fh *vfh = fh;
+ struct v4l2_ext_controls ctrls;
+ struct v4l2_ext_control ctrl;
+
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_g_ctrl(vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_g_ctrl(vfd->ctrl_handler, p);
+ if (ops->vidioc_g_ctrl)
+ return ops->vidioc_g_ctrl(file, fh, p);
+ if (ops->vidioc_g_ext_ctrls == NULL)
+ return -ENOTTY;
+
+ ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
+ ctrls.count = 1;
+ ctrls.controls = &ctrl;
+ ctrl.id = p->id;
+ ctrl.value = p->value;
+ if (check_ext_ctrls(&ctrls, 1)) {
+ int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
+
+ if (ret == 0)
+ p->value = ctrl.value;
+ return ret;
+ }
+ return -EINVAL;
+}
+
+static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_control *p = arg;
+ struct v4l2_fh *vfh = fh;
+ struct v4l2_ext_controls ctrls;
+ struct v4l2_ext_control ctrl;
+
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
+ if (ops->vidioc_s_ctrl)
+ return ops->vidioc_s_ctrl(file, fh, p);
+ if (ops->vidioc_s_ext_ctrls == NULL)
+ return -ENOTTY;
+
+ ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
+ ctrls.count = 1;
+ ctrls.controls = &ctrl;
+ ctrl.id = p->id;
+ ctrl.value = p->value;
+ if (check_ext_ctrls(&ctrls, 1))
+ return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
+ return -EINVAL;
+}
+
+static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_ext_controls *p = arg;
+ struct v4l2_fh *vfh = fh;
+
+ p->error_idx = p->count;
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
+ if (ops->vidioc_g_ext_ctrls == NULL)
+ return -ENOTTY;
+ return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
+ -EINVAL;
+}
+
+static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_ext_controls *p = arg;
+ struct v4l2_fh *vfh = fh;
+
+ p->error_idx = p->count;
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
+ if (ops->vidioc_s_ext_ctrls == NULL)
+ return -ENOTTY;
+ return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
+ -EINVAL;
+}
+
+static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct v4l2_ext_controls *p = arg;
+ struct v4l2_fh *vfh = fh;
+
+ p->error_idx = p->count;
+ if (vfh && vfh->ctrl_handler)
+ return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
+ if (vfd->ctrl_handler)
+ return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
+ if (ops->vidioc_try_ext_ctrls == NULL)
+ return -ENOTTY;
+ return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
+ -EINVAL;
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -1282,14 +1452,14 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
- IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL),
+ IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
+ IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
- IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
+ IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
+ IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
@@ -1316,9 +1486,9 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
- IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL),
- IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0),
+ IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
+ IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
+ IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, 0),
IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0),
@@ -1450,175 +1620,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- /* --- controls ---------------------------------------------- */
- case VIDIOC_QUERYCTRL:
- {
- struct v4l2_queryctrl *p = arg;
-
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_queryctrl(vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_queryctrl(vfd->ctrl_handler, p);
- else if (ops->vidioc_queryctrl)
- ret = ops->vidioc_queryctrl(file, fh, p);
- else
- break;
- if (!ret)
- dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, "
- "step=%d, default=%d, flags=0x%08x\n",
- p->id, p->type, p->name,
- p->minimum, p->maximum,
- p->step, p->default_value, p->flags);
- else
- dbgarg(cmd, "id=0x%x\n", p->id);
- break;
- }
- case VIDIOC_G_CTRL:
- {
- struct v4l2_control *p = arg;
-
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_g_ctrl(vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_g_ctrl(vfd->ctrl_handler, p);
- else if (ops->vidioc_g_ctrl)
- ret = ops->vidioc_g_ctrl(file, fh, p);
- else if (ops->vidioc_g_ext_ctrls) {
- struct v4l2_ext_controls ctrls;
- struct v4l2_ext_control ctrl;
-
- ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
- ctrls.count = 1;
- ctrls.controls = &ctrl;
- ctrl.id = p->id;
- ctrl.value = p->value;
- if (check_ext_ctrls(&ctrls, 1)) {
- ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
- if (ret == 0)
- p->value = ctrl.value;
- }
- } else
- break;
- if (!ret)
- dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value);
- else
- dbgarg(cmd, "id=0x%x\n", p->id);
- break;
- }
- case VIDIOC_S_CTRL:
- {
- struct v4l2_control *p = arg;
- struct v4l2_ext_controls ctrls;
- struct v4l2_ext_control ctrl;
-
- if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler &&
- !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls)
- break;
-
- dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value);
-
- if (vfh && vfh->ctrl_handler) {
- ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
- break;
- }
- if (vfd->ctrl_handler) {
- ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
- break;
- }
- if (ops->vidioc_s_ctrl) {
- ret = ops->vidioc_s_ctrl(file, fh, p);
- break;
- }
- if (!ops->vidioc_s_ext_ctrls)
- break;
-
- ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
- ctrls.count = 1;
- ctrls.controls = &ctrl;
- ctrl.id = p->id;
- ctrl.value = p->value;
- if (check_ext_ctrls(&ctrls, 1))
- ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
- else
- ret = -EINVAL;
- break;
- }
- case VIDIOC_G_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- p->error_idx = p->count;
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
- else if (ops->vidioc_g_ext_ctrls)
- ret = check_ext_ctrls(p, 0) ?
- ops->vidioc_g_ext_ctrls(file, fh, p) :
- -EINVAL;
- else
- break;
- v4l_print_ext_ctrls(cmd, vfd, p, !ret);
- break;
- }
- case VIDIOC_S_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- p->error_idx = p->count;
- if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler &&
- !ops->vidioc_s_ext_ctrls)
- break;
- v4l_print_ext_ctrls(cmd, vfd, p, 1);
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
- else if (check_ext_ctrls(p, 0))
- ret = ops->vidioc_s_ext_ctrls(file, fh, p);
- else
- ret = -EINVAL;
- break;
- }
- case VIDIOC_TRY_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- p->error_idx = p->count;
- if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler &&
- !ops->vidioc_try_ext_ctrls)
- break;
- v4l_print_ext_ctrls(cmd, vfd, p, 1);
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
- else if (check_ext_ctrls(p, 0))
- ret = ops->vidioc_try_ext_ctrls(file, fh, p);
- else
- ret = -EINVAL;
- break;
- }
- case VIDIOC_QUERYMENU:
- {
- struct v4l2_querymenu *p = arg;
-
- if (vfh && vfh->ctrl_handler)
- ret = v4l2_querymenu(vfh->ctrl_handler, p);
- else if (vfd->ctrl_handler)
- ret = v4l2_querymenu(vfd->ctrl_handler, p);
- else if (ops->vidioc_querymenu)
- ret = ops->vidioc_querymenu(file, fh, p);
- else
- break;
- if (!ret)
- dbgarg(cmd, "id=0x%x, index=%d, name=%s\n",
- p->id, p->index, p->name);
- else
- dbgarg(cmd, "id=0x%x, index=%d\n",
- p->id, p->index);
- break;
- }
case VIDIOC_G_CROP:
{
struct v4l2_crop *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 13/34] v4l2-ioctl.c: use the new table for selection ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (10 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 12/34] v4l2-ioctl.c: use the new table for control ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 14/34] v4l2-ioctl.c: use the new table for compression ioctls Hans Verkuil
` (20 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 262 ++++++++++++++++++--------------------
1 file changed, 127 insertions(+), 135 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index c5e772a..ba13361 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -555,17 +555,45 @@ static void v4l_print_ext_controls(const void *arg, bool write_only)
pr_cont("\n");
}
-static void v4l_print_u32(const void *arg, bool write_only)
+static void v4l_print_cropcap(const void *arg, bool write_only)
{
- pr_cont("value=%u\n", *(const u32 *)arg);
+ const struct v4l2_cropcap *p = arg;
+
+ pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, "
+ "defrect wxh=%dx%d, x,y=%d,%d\n, "
+ "pixelaspect %d/%d\n",
+ prt_names(p->type, v4l2_type_names),
+ p->bounds.width, p->bounds.height,
+ p->bounds.left, p->bounds.top,
+ p->defrect.width, p->defrect.height,
+ p->defrect.left, p->defrect.top,
+ p->pixelaspect.numerator, p->pixelaspect.denominator);
}
-static inline void dbgrect(struct video_device *vfd, char *s,
- struct v4l2_rect *r)
+static void v4l_print_crop(const void *arg, bool write_only)
{
- dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top,
- r->width, r->height);
-};
+ const struct v4l2_crop *p = arg;
+
+ pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
+ prt_names(p->type, v4l2_type_names),
+ p->c.width, p->c.height,
+ p->c.left, p->c.top);
+}
+
+static void v4l_print_selection(const void *arg, bool write_only)
+{
+ const struct v4l2_selection *p = arg;
+
+ pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
+ prt_names(p->type, v4l2_type_names),
+ p->target, p->flags,
+ p->r.width, p->r.height, p->r.left, p->r.top);
+}
+
+static void v4l_print_u32(const void *arg, bool write_only)
+{
+ pr_cont("value=%u\n", *(const u32 *)arg);
+}
static void dbgtimings(struct video_device *vfd,
const struct v4l2_dv_timings *p)
@@ -1382,6 +1410,93 @@ static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
-EINVAL;
}
+static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_crop *p = arg;
+ struct v4l2_selection s = {
+ .type = p->type,
+ };
+ int ret;
+
+ if (ops->vidioc_g_crop)
+ return ops->vidioc_g_crop(file, fh, p);
+ /* simulate capture crop using selection api */
+
+ /* crop means compose for output devices */
+ if (V4L2_TYPE_IS_OUTPUT(p->type))
+ s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
+ else
+ s.target = V4L2_SEL_TGT_CROP_ACTIVE;
+
+ ret = ops->vidioc_g_selection(file, fh, &s);
+
+ /* copying results to old structure on success */
+ if (!ret)
+ p->c = s.r;
+ return ret;
+}
+
+static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_crop *p = arg;
+ struct v4l2_selection s = {
+ .type = p->type,
+ .r = p->c,
+ };
+
+ if (ops->vidioc_s_crop)
+ return ops->vidioc_s_crop(file, fh, p);
+ /* simulate capture crop using selection api */
+
+ /* crop means compose for output devices */
+ if (V4L2_TYPE_IS_OUTPUT(p->type))
+ s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
+ else
+ s.target = V4L2_SEL_TGT_CROP_ACTIVE;
+
+ return ops->vidioc_s_selection(file, fh, &s);
+}
+
+static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_cropcap *p = arg;
+ struct v4l2_selection s = { .type = p->type };
+ int ret;
+
+ if (ops->vidioc_cropcap)
+ return ops->vidioc_cropcap(file, fh, p);
+
+ /* obtaining bounds */
+ if (V4L2_TYPE_IS_OUTPUT(p->type))
+ s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
+ else
+ s.target = V4L2_SEL_TGT_CROP_BOUNDS;
+
+ ret = ops->vidioc_g_selection(file, fh, &s);
+ if (ret)
+ return ret;
+ p->bounds = s.r;
+
+ /* obtaining defrect */
+ if (V4L2_TYPE_IS_OUTPUT(p->type))
+ s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
+ else
+ s.target = V4L2_SEL_TGT_CROP_DEFAULT;
+
+ ret = ops->vidioc_g_selection(file, fh, &s);
+ if (ret)
+ return ret;
+ p->defrect = s.r;
+
+ /* setting trivial pixelaspect */
+ p->pixelaspect.numerator = 1;
+ p->pixelaspect.denominator = 1;
+ return 0;
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -1471,11 +1586,11 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_STD(VIDIOC_S_MODULATOR, vidioc_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_CROPCAP, INFO_FL_CLEAR(v4l2_cropcap, type)),
- IOCTL_INFO(VIDIOC_G_CROP, INFO_FL_CLEAR(v4l2_crop, type)),
- IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_SELECTION, 0),
- IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
+ IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
+ IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, 0),
+ IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
@@ -1620,129 +1735,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- case VIDIOC_G_CROP:
- {
- struct v4l2_crop *p = arg;
-
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
-
- if (ops->vidioc_g_crop) {
- ret = ops->vidioc_g_crop(file, fh, p);
- } else {
- /* simulate capture crop using selection api */
- struct v4l2_selection s = {
- .type = p->type,
- };
-
- /* crop means compose for output devices */
- if (V4L2_TYPE_IS_OUTPUT(p->type))
- s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
- else
- s.target = V4L2_SEL_TGT_CROP_ACTIVE;
-
- ret = ops->vidioc_g_selection(file, fh, &s);
-
- /* copying results to old structure on success */
- if (!ret)
- p->c = s.r;
- }
-
- if (!ret)
- dbgrect(vfd, "", &p->c);
- break;
- }
- case VIDIOC_S_CROP:
- {
- struct v4l2_crop *p = arg;
-
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
- dbgrect(vfd, "", &p->c);
-
- if (ops->vidioc_s_crop) {
- ret = ops->vidioc_s_crop(file, fh, p);
- } else {
- /* simulate capture crop using selection api */
- struct v4l2_selection s = {
- .type = p->type,
- .r = p->c,
- };
-
- /* crop means compose for output devices */
- if (V4L2_TYPE_IS_OUTPUT(p->type))
- s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
- else
- s.target = V4L2_SEL_TGT_CROP_ACTIVE;
-
- ret = ops->vidioc_s_selection(file, fh, &s);
- }
- break;
- }
- case VIDIOC_G_SELECTION:
- {
- struct v4l2_selection *p = arg;
-
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
-
- ret = ops->vidioc_g_selection(file, fh, p);
- if (!ret)
- dbgrect(vfd, "", &p->r);
- break;
- }
- case VIDIOC_S_SELECTION:
- {
- struct v4l2_selection *p = arg;
-
-
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
- dbgrect(vfd, "", &p->r);
-
- ret = ops->vidioc_s_selection(file, fh, p);
- break;
- }
- case VIDIOC_CROPCAP:
- {
- struct v4l2_cropcap *p = arg;
-
- /*FIXME: Should also show v4l2_fract pixelaspect */
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
- if (ops->vidioc_cropcap) {
- ret = ops->vidioc_cropcap(file, fh, p);
- } else {
- struct v4l2_selection s = { .type = p->type };
-
- /* obtaining bounds */
- if (V4L2_TYPE_IS_OUTPUT(p->type))
- s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
- else
- s.target = V4L2_SEL_TGT_CROP_BOUNDS;
-
- ret = ops->vidioc_g_selection(file, fh, &s);
- if (ret)
- break;
- p->bounds = s.r;
-
- /* obtaining defrect */
- if (V4L2_TYPE_IS_OUTPUT(p->type))
- s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
- else
- s.target = V4L2_SEL_TGT_CROP_DEFAULT;
-
- ret = ops->vidioc_g_selection(file, fh, &s);
- if (ret)
- break;
- p->defrect = s.r;
-
- /* setting trivial pixelaspect */
- p->pixelaspect.numerator = 1;
- p->pixelaspect.denominator = 1;
- }
-
- if (!ret) {
- dbgrect(vfd, "bounds ", &p->bounds);
- dbgrect(vfd, "defrect ", &p->defrect);
- }
- break;
- }
case VIDIOC_G_JPEGCOMP:
{
struct v4l2_jpegcompression *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 14/34] v4l2-ioctl.c: use the new table for compression ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (11 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 13/34] v4l2-ioctl.c: use the new table for selection ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 15/34] v4l2-ioctl.c: use the new table for debug ioctls Hans Verkuil
` (19 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 123 ++++++++++++++------------------------
1 file changed, 46 insertions(+), 77 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index ba13361..93aaa73 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -590,6 +590,45 @@ static void v4l_print_selection(const void *arg, bool write_only)
p->r.width, p->r.height, p->r.left, p->r.top);
}
+static void v4l_print_jpegcompression(const void *arg, bool write_only)
+{
+ const struct v4l2_jpegcompression *p = arg;
+
+ pr_cont("quality=%d, APPn=%d, APP_len=%d, "
+ "COM_len=%d, jpeg_markers=0x%x\n",
+ p->quality, p->APPn, p->APP_len,
+ p->COM_len, p->jpeg_markers);
+}
+
+static void v4l_print_enc_idx(const void *arg, bool write_only)
+{
+ const struct v4l2_enc_idx *p = arg;
+
+ pr_cont("entries=%d, entries_cap=%d\n",
+ p->entries, p->entries_cap);
+}
+
+static void v4l_print_encoder_cmd(const void *arg, bool write_only)
+{
+ const struct v4l2_encoder_cmd *p = arg;
+
+ pr_cont("cmd=%d, flags=0x%x\n",
+ p->cmd, p->flags);
+}
+
+static void v4l_print_decoder_cmd(const void *arg, bool write_only)
+{
+ const struct v4l2_decoder_cmd *p = arg;
+
+ pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
+
+ if (p->cmd == V4L2_DEC_CMD_START)
+ pr_info("speed=%d, format=%u\n",
+ p->start.speed, p->start.format);
+ else if (p->cmd == V4L2_DEC_CMD_STOP)
+ pr_info("pts=%llu\n", p->stop.pts);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -1591,8 +1630,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, 0),
IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0),
- IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
+ IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
@@ -1606,11 +1645,11 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, 0),
IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
- IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0),
- IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
- IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
- IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0),
+ IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
+ IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
+ IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
+ IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
@@ -1735,76 +1774,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- case VIDIOC_G_JPEGCOMP:
- {
- struct v4l2_jpegcompression *p = arg;
-
- ret = ops->vidioc_g_jpegcomp(file, fh, p);
- if (!ret)
- dbgarg(cmd, "quality=%d, APPn=%d, "
- "APP_len=%d, COM_len=%d, "
- "jpeg_markers=%d\n",
- p->quality, p->APPn, p->APP_len,
- p->COM_len, p->jpeg_markers);
- break;
- }
- case VIDIOC_S_JPEGCOMP:
- {
- struct v4l2_jpegcompression *p = arg;
-
- dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, "
- "COM_len=%d, jpeg_markers=%d\n",
- p->quality, p->APPn, p->APP_len,
- p->COM_len, p->jpeg_markers);
- ret = ops->vidioc_s_jpegcomp(file, fh, p);
- break;
- }
- case VIDIOC_G_ENC_INDEX:
- {
- struct v4l2_enc_idx *p = arg;
-
- ret = ops->vidioc_g_enc_index(file, fh, p);
- if (!ret)
- dbgarg(cmd, "entries=%d, entries_cap=%d\n",
- p->entries, p->entries_cap);
- break;
- }
- case VIDIOC_ENCODER_CMD:
- {
- struct v4l2_encoder_cmd *p = arg;
-
- ret = ops->vidioc_encoder_cmd(file, fh, p);
- if (!ret)
- dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
- break;
- }
- case VIDIOC_TRY_ENCODER_CMD:
- {
- struct v4l2_encoder_cmd *p = arg;
-
- ret = ops->vidioc_try_encoder_cmd(file, fh, p);
- if (!ret)
- dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
- break;
- }
- case VIDIOC_DECODER_CMD:
- {
- struct v4l2_decoder_cmd *p = arg;
-
- ret = ops->vidioc_decoder_cmd(file, fh, p);
- if (!ret)
- dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
- break;
- }
- case VIDIOC_TRY_DECODER_CMD:
- {
- struct v4l2_decoder_cmd *p = arg;
-
- ret = ops->vidioc_try_decoder_cmd(file, fh, p);
- if (!ret)
- dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
- break;
- }
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 15/34] v4l2-ioctl.c: use the new table for debug ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (12 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 14/34] v4l2-ioctl.c: use the new table for compression ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 16/34] v4l2-ioctl.c: use the new table for preset/timings ioctls Hans Verkuil
` (18 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 139 ++++++++++++++++++++++++--------------
1 file changed, 89 insertions(+), 50 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 93aaa73..bebd2aa 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -629,11 +629,42 @@ static void v4l_print_decoder_cmd(const void *arg, bool write_only)
pr_info("pts=%llu\n", p->stop.pts);
}
+static void v4l_print_dbg_chip_ident(const void *arg, bool write_only)
+{
+ const struct v4l2_dbg_chip_ident *p = arg;
+
+ pr_cont("type=%u, ", p->match.type);
+ if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
+ pr_cont("name=%s, ", p->match.name);
+ else
+ pr_cont("addr=%u, ", p->match.addr);
+ pr_cont("chip_ident=%u, revision=0x%x\n",
+ p->ident, p->revision);
+}
+
+static void v4l_print_dbg_register(const void *arg, bool write_only)
+{
+ const struct v4l2_dbg_register *p = arg;
+
+ pr_cont("type=%u, ", p->match.type);
+ if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
+ pr_cont("name=%s, ", p->match.name);
+ else
+ pr_cont("addr=%u, ", p->match.addr);
+ pr_cont("reg=0x%llx, val=0x%llx\n",
+ p->reg, p->val);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
}
+static void v4l_print_newline(const void *arg, bool write_only)
+{
+ pr_cont("\n");
+}
+
static void dbgtimings(struct video_device *vfd,
const struct v4l2_dv_timings *p)
{
@@ -1536,6 +1567,60 @@ static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
return 0;
}
+static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct video_device *vfd = video_devdata(file);
+ int ret;
+
+ if (vfd->v4l2_dev)
+ pr_info("%s: ================= START STATUS =================\n",
+ vfd->v4l2_dev->name);
+ ret = ops->vidioc_log_status(file, fh);
+ if (vfd->v4l2_dev)
+ pr_info("%s: ================== END STATUS ==================\n",
+ vfd->v4l2_dev->name);
+ return ret;
+}
+
+static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ struct v4l2_dbg_register *p = arg;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ return ops->vidioc_g_register(file, fh, p);
+#else
+ return -ENOTTY;
+#endif
+}
+
+static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ struct v4l2_dbg_register *p = arg;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ return ops->vidioc_s_register(file, fh, p);
+#else
+ return -ENOTTY;
+#endif
+}
+
+static int v4l_dbg_g_chip_ident(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_dbg_chip_ident *p = arg;
+
+ p->ident = V4L2_IDENT_NONE;
+ p->revision = 0;
+ return ops->vidioc_g_chip_ident(file, fh, p);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -1639,7 +1724,7 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
- IOCTL_INFO(VIDIOC_LOG_STATUS, 0),
+ IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, 0),
@@ -1650,9 +1735,9 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
- IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0),
- IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0),
- IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0),
+ IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
+ IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
+ IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_IDENT, v4l_dbg_g_chip_ident, v4l_print_dbg_chip_ident, 0),
IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO),
@@ -1787,52 +1872,6 @@ static long __video_do_ioctl(struct file *file,
dbgarg2("service_set=%d\n", p->service_set);
break;
}
- case VIDIOC_LOG_STATUS:
- {
- if (vfd->v4l2_dev)
- pr_info("%s: ================= START STATUS =================\n",
- vfd->v4l2_dev->name);
- ret = ops->vidioc_log_status(file, fh);
- if (vfd->v4l2_dev)
- pr_info("%s: ================== END STATUS ==================\n",
- vfd->v4l2_dev->name);
- break;
- }
- case VIDIOC_DBG_G_REGISTER:
- {
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- struct v4l2_dbg_register *p = arg;
-
- if (!capable(CAP_SYS_ADMIN))
- ret = -EPERM;
- else
- ret = ops->vidioc_g_register(file, fh, p);
-#endif
- break;
- }
- case VIDIOC_DBG_S_REGISTER:
- {
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- struct v4l2_dbg_register *p = arg;
-
- if (!capable(CAP_SYS_ADMIN))
- ret = -EPERM;
- else
- ret = ops->vidioc_s_register(file, fh, p);
-#endif
- break;
- }
- case VIDIOC_DBG_G_CHIP_IDENT:
- {
- struct v4l2_dbg_chip_ident *p = arg;
-
- p->ident = V4L2_IDENT_NONE;
- p->revision = 0;
- ret = ops->vidioc_g_chip_ident(file, fh, p);
- if (!ret)
- dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
- break;
- }
case VIDIOC_ENUM_FRAMESIZES:
{
struct v4l2_frmsizeenum *p = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 16/34] v4l2-ioctl.c: use the new table for preset/timings ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (13 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 15/34] v4l2-ioctl.c: use the new table for debug ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 17/34] v4l2-ioctl.c: use the new table for the remaining ioctls Hans Verkuil
` (17 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 207 ++++++++++++--------------------------
1 file changed, 67 insertions(+), 140 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index bebd2aa..ea5f8fd 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -655,29 +655,35 @@ static void v4l_print_dbg_register(const void *arg, bool write_only)
p->reg, p->val);
}
-static void v4l_print_u32(const void *arg, bool write_only)
+static void v4l_print_dv_enum_presets(const void *arg, bool write_only)
{
- pr_cont("value=%u\n", *(const u32 *)arg);
+ const struct v4l2_dv_enum_preset *p = arg;
+
+ pr_cont("index=%u, preset=%u, name=%s, width=%u, height=%u\n",
+ p->index, p->preset, p->name, p->width, p->height);
}
-static void v4l_print_newline(const void *arg, bool write_only)
+static void v4l_print_dv_preset(const void *arg, bool write_only)
{
- pr_cont("\n");
+ const struct v4l2_dv_preset *p = arg;
+
+ pr_cont("preset=%u\n", p->preset);
}
-static void dbgtimings(struct video_device *vfd,
- const struct v4l2_dv_timings *p)
+static void v4l_print_dv_timings(const void *arg, bool write_only)
{
+ const struct v4l2_dv_timings *p = arg;
+
switch (p->type) {
case V4L2_DV_BT_656_1120:
- dbgarg2("bt-656/1120:interlaced=%d,"
- " pixelclock=%lld,"
- " width=%d, height=%d, polarities=%x,"
- " hfrontporch=%d, hsync=%d,"
- " hbackporch=%d, vfrontporch=%d,"
- " vsync=%d, vbackporch=%d,"
- " il_vfrontporch=%d, il_vsync=%d,"
- " il_vbackporch=%d, standards=%x, flags=%x\n",
+ pr_cont("type=bt-656/1120, interlaced=%u, "
+ "pixelclock=%llu, "
+ "width=%u, height=%u, polarities=0x%x, "
+ "hfrontporch=%u, hsync=%u, "
+ "hbackporch=%u, vfrontporch=%u, "
+ "vsync=%u, vbackporch=%u, "
+ "il_vfrontporch=%u, il_vsync=%u, "
+ "il_vbackporch=%u, standards=0x%x, flags=0x%x\n",
p->bt.interlaced, p->bt.pixelclock,
p->bt.width, p->bt.height,
p->bt.polarities, p->bt.hfrontporch,
@@ -688,11 +694,48 @@ static void dbgtimings(struct video_device *vfd,
p->bt.standards, p->bt.flags);
break;
default:
- dbgarg2("Unknown type %d!\n", p->type);
+ pr_cont("type=%d\n", p->type);
break;
}
}
+static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
+{
+ const struct v4l2_enum_dv_timings *p = arg;
+
+ pr_cont("index=%u, ", p->index);
+ v4l_print_dv_timings(&p->timings, write_only);
+}
+
+static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
+{
+ const struct v4l2_dv_timings_cap *p = arg;
+
+ switch (p->type) {
+ case V4L2_DV_BT_656_1120:
+ pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, "
+ "pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
+ p->bt.min_width, p->bt.max_width,
+ p->bt.min_height, p->bt.max_height,
+ p->bt.min_pixelclock, p->bt.max_pixelclock,
+ p->bt.standards, p->bt.capabilities);
+ break;
+ default:
+ pr_cont("type=%u\n", p->type);
+ break;
+ }
+}
+
+static void v4l_print_u32(const void *arg, bool write_only)
+{
+ pr_cont("value=%u\n", *(const u32 *)arg);
+}
+
+static void v4l_print_newline(const void *arg, bool write_only)
+{
+ pr_cont("\n");
+}
+
static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
{
__u32 i;
@@ -1739,20 +1782,20 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_IDENT, v4l_dbg_g_chip_ident, v4l_print_dbg_chip_ident, 0),
IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0),
- IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_DV_PRESET, 0),
- IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0),
- IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0),
+ IOCTL_INFO_STD(VIDIOC_ENUM_DV_PRESETS, vidioc_enum_dv_presets, v4l_print_dv_enum_presets, 0),
+ IOCTL_INFO_STD(VIDIOC_S_DV_PRESET, vidioc_s_dv_preset, v4l_print_dv_preset, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_DV_PRESET, vidioc_g_dv_preset, v4l_print_dv_preset, 0),
+ IOCTL_INFO_STD(VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset, v4l_print_dv_preset, 0),
+ IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO),
+ IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
IOCTL_INFO(VIDIOC_DQEVENT, 0),
IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0),
IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, 0),
- IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0),
- IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0),
- IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0),
+ IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0),
+ IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
+ IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, 0),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
@@ -1937,122 +1980,6 @@ static long __video_do_ioctl(struct file *file,
}
break;
}
- case VIDIOC_ENUM_DV_PRESETS:
- {
- struct v4l2_dv_enum_preset *p = arg;
-
- ret = ops->vidioc_enum_dv_presets(file, fh, p);
- if (!ret)
- dbgarg(cmd,
- "index=%d, preset=%d, name=%s, width=%d,"
- " height=%d ",
- p->index, p->preset, p->name, p->width,
- p->height);
- break;
- }
- case VIDIOC_S_DV_PRESET:
- {
- struct v4l2_dv_preset *p = arg;
-
- dbgarg(cmd, "preset=%d\n", p->preset);
- ret = ops->vidioc_s_dv_preset(file, fh, p);
- break;
- }
- case VIDIOC_G_DV_PRESET:
- {
- struct v4l2_dv_preset *p = arg;
-
- ret = ops->vidioc_g_dv_preset(file, fh, p);
- if (!ret)
- dbgarg(cmd, "preset=%d\n", p->preset);
- break;
- }
- case VIDIOC_QUERY_DV_PRESET:
- {
- struct v4l2_dv_preset *p = arg;
-
- ret = ops->vidioc_query_dv_preset(file, fh, p);
- if (!ret)
- dbgarg(cmd, "preset=%d\n", p->preset);
- break;
- }
- case VIDIOC_S_DV_TIMINGS:
- {
- struct v4l2_dv_timings *p = arg;
-
- dbgtimings(vfd, p);
- switch (p->type) {
- case V4L2_DV_BT_656_1120:
- ret = ops->vidioc_s_dv_timings(file, fh, p);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- break;
- }
- case VIDIOC_G_DV_TIMINGS:
- {
- struct v4l2_dv_timings *p = arg;
-
- ret = ops->vidioc_g_dv_timings(file, fh, p);
- if (!ret)
- dbgtimings(vfd, p);
- break;
- }
- case VIDIOC_ENUM_DV_TIMINGS:
- {
- struct v4l2_enum_dv_timings *p = arg;
-
- if (!ops->vidioc_enum_dv_timings)
- break;
-
- ret = ops->vidioc_enum_dv_timings(file, fh, p);
- if (!ret) {
- dbgarg(cmd, "index=%d: ", p->index);
- dbgtimings(vfd, &p->timings);
- }
- break;
- }
- case VIDIOC_QUERY_DV_TIMINGS:
- {
- struct v4l2_dv_timings *p = arg;
-
- if (!ops->vidioc_query_dv_timings)
- break;
-
- ret = ops->vidioc_query_dv_timings(file, fh, p);
- if (!ret)
- dbgtimings(vfd, p);
- break;
- }
- case VIDIOC_DV_TIMINGS_CAP:
- {
- struct v4l2_dv_timings_cap *p = arg;
-
- if (!ops->vidioc_dv_timings_cap)
- break;
-
- ret = ops->vidioc_dv_timings_cap(file, fh, p);
- if (ret)
- break;
- switch (p->type) {
- case V4L2_DV_BT_656_1120:
- dbgarg(cmd,
- "type=%d, width=%u-%u, height=%u-%u, "
- "pixelclock=%llu-%llu, standards=%x, capabilities=%x ",
- p->type,
- p->bt.min_width, p->bt.max_width,
- p->bt.min_height, p->bt.max_height,
- p->bt.min_pixelclock, p->bt.max_pixelclock,
- p->bt.standards, p->bt.capabilities);
- break;
- default:
- dbgarg(cmd, "unknown type ");
- break;
- }
- break;
- }
case VIDIOC_DQEVENT:
{
struct v4l2_event *ev = arg;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 17/34] v4l2-ioctl.c: use the new table for the remaining ioctls.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (14 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 16/34] v4l2-ioctl.c: use the new table for preset/timings ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 18/34] v4l2-ioctl.c: finalize table conversion Hans Verkuil
` (16 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 278 +++++++++++++++++++++-----------------
1 file changed, 154 insertions(+), 124 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index ea5f8fd..2ec1755 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -726,6 +726,125 @@ static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
}
}
+static void v4l_print_frmsizeenum(const void *arg, bool write_only)
+{
+ const struct v4l2_frmsizeenum *p = arg;
+
+ pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
+ p->index,
+ (p->pixel_format & 0xff),
+ (p->pixel_format >> 8) & 0xff,
+ (p->pixel_format >> 16) & 0xff,
+ (p->pixel_format >> 24) & 0xff,
+ p->type);
+ switch (p->type) {
+ case V4L2_FRMSIZE_TYPE_DISCRETE:
+ pr_cont(" wxh=%ux%u\n",
+ p->discrete.width, p->discrete.height);
+ break;
+ case V4L2_FRMSIZE_TYPE_STEPWISE:
+ pr_cont(" min=%ux%u, max=%ux%u, step=%ux%u\n",
+ p->stepwise.min_width, p->stepwise.min_height,
+ p->stepwise.step_width, p->stepwise.step_height,
+ p->stepwise.max_width, p->stepwise.max_height);
+ break;
+ case V4L2_FRMSIZE_TYPE_CONTINUOUS:
+ /* fall through */
+ default:
+ pr_cont("\n");
+ break;
+ }
+}
+
+static void v4l_print_frmivalenum(const void *arg, bool write_only)
+{
+ const struct v4l2_frmivalenum *p = arg;
+
+ pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
+ p->index,
+ (p->pixel_format & 0xff),
+ (p->pixel_format >> 8) & 0xff,
+ (p->pixel_format >> 16) & 0xff,
+ (p->pixel_format >> 24) & 0xff,
+ p->width, p->height, p->type);
+ switch (p->type) {
+ case V4L2_FRMIVAL_TYPE_DISCRETE:
+ pr_cont(" fps=%d/%d\n",
+ p->discrete.numerator,
+ p->discrete.denominator);
+ break;
+ case V4L2_FRMIVAL_TYPE_STEPWISE:
+ pr_cont(" min=%d/%d, max=%d/%d, step=%d/%d\n",
+ p->stepwise.min.numerator,
+ p->stepwise.min.denominator,
+ p->stepwise.max.numerator,
+ p->stepwise.max.denominator,
+ p->stepwise.step.numerator,
+ p->stepwise.step.denominator);
+ break;
+ case V4L2_FRMIVAL_TYPE_CONTINUOUS:
+ /* fall through */
+ default:
+ pr_cont("\n");
+ break;
+ }
+}
+
+static void v4l_print_event(const void *arg, bool write_only)
+{
+ const struct v4l2_event *p = arg;
+ const struct v4l2_event_ctrl *c;
+
+ pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, "
+ "timestamp=%lu.%9.9lu\n",
+ p->type, p->pending, p->sequence, p->id,
+ p->timestamp.tv_sec, p->timestamp.tv_nsec);
+ switch (p->type) {
+ case V4L2_EVENT_VSYNC:
+ printk(KERN_DEBUG "field=%s\n",
+ prt_names(p->u.vsync.field, v4l2_field_names));
+ break;
+ case V4L2_EVENT_CTRL:
+ c = &p->u.ctrl;
+ printk(KERN_DEBUG "changes=0x%x, type=%u, ",
+ c->changes, c->type);
+ if (c->type == V4L2_CTRL_TYPE_INTEGER64)
+ pr_cont("value64=%lld, ", c->value64);
+ else
+ pr_cont("value=%d, ", c->value);
+ pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d,"
+ " default_value=%d\n",
+ c->flags, c->minimum, c->maximum,
+ c->step, c->default_value);
+ break;
+ case V4L2_EVENT_FRAME_SYNC:
+ pr_cont("frame_sequence=%u\n",
+ p->u.frame_sync.frame_sequence);
+ break;
+ }
+}
+
+static void v4l_print_event_subscription(const void *arg, bool write_only)
+{
+ const struct v4l2_event_subscription *p = arg;
+
+ pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
+ p->type, p->id, p->flags);
+}
+
+static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
+{
+ const struct v4l2_sliced_vbi_cap *p = arg;
+ int i;
+
+ pr_cont("type=%s, service_set=0x%08x\n",
+ prt_names(p->type, v4l2_type_names), p->service_set);
+ for (i = 0; i < 24; i++)
+ printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
+ p->service_lines[0][i],
+ p->service_lines[1][i]);
+}
+
static void v4l_print_u32(const void *arg, bool write_only)
{
pr_cont("value=%u\n", *(const u32 *)arg);
@@ -1664,6 +1783,35 @@ static int v4l_dbg_g_chip_ident(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_g_chip_ident(file, fh, p);
}
+static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
+}
+
+static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_subscribe_event(fh, arg);
+}
+
+static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ return ops->vidioc_unsubscribe_event(fh, arg);
+}
+
+static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_sliced_vbi_cap *p = arg;
+
+ /* Clear up to type, everything after type is zeroed already */
+ memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
+
+ return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
+}
+
struct v4l2_ioctl_info {
unsigned int ioctl;
u32 flags;
@@ -1766,13 +1914,13 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
- IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
+ IOCTL_INFO_FNC(VIDIOC_G_SLICED_VBI_CAP, v4l_g_sliced_vbi_cap, v4l_print_sliced_vbi_cap, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, 0),
- IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
- IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
+ IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
+ IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
@@ -1788,9 +1936,9 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_STD(VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset, v4l_print_dv_preset, 0),
IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
- IOCTL_INFO(VIDIOC_DQEVENT, 0),
- IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0),
- IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0),
+ IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
+ IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
+ IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, 0),
IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0),
@@ -1902,124 +2050,6 @@ static long __video_do_ioctl(struct file *file,
}
switch (cmd) {
- case VIDIOC_G_SLICED_VBI_CAP:
- {
- struct v4l2_sliced_vbi_cap *p = arg;
-
- /* Clear up to type, everything after type is zerod already */
- memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
-
- dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
- ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p);
- if (!ret)
- dbgarg2("service_set=%d\n", p->service_set);
- break;
- }
- case VIDIOC_ENUM_FRAMESIZES:
- {
- struct v4l2_frmsizeenum *p = arg;
-
- ret = ops->vidioc_enum_framesizes(file, fh, p);
- dbgarg(cmd,
- "index=%d, pixelformat=%c%c%c%c, type=%d ",
- p->index,
- (p->pixel_format & 0xff),
- (p->pixel_format >> 8) & 0xff,
- (p->pixel_format >> 16) & 0xff,
- (p->pixel_format >> 24) & 0xff,
- p->type);
- switch (p->type) {
- case V4L2_FRMSIZE_TYPE_DISCRETE:
- dbgarg3("width = %d, height=%d\n",
- p->discrete.width, p->discrete.height);
- break;
- case V4L2_FRMSIZE_TYPE_STEPWISE:
- dbgarg3("min %dx%d, max %dx%d, step %dx%d\n",
- p->stepwise.min_width, p->stepwise.min_height,
- p->stepwise.step_width, p->stepwise.step_height,
- p->stepwise.max_width, p->stepwise.max_height);
- break;
- case V4L2_FRMSIZE_TYPE_CONTINUOUS:
- dbgarg3("continuous\n");
- break;
- default:
- dbgarg3("- Unknown type!\n");
- }
-
- break;
- }
- case VIDIOC_ENUM_FRAMEINTERVALS:
- {
- struct v4l2_frmivalenum *p = arg;
-
- ret = ops->vidioc_enum_frameintervals(file, fh, p);
- dbgarg(cmd,
- "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ",
- p->index, p->pixel_format,
- p->width, p->height, p->type);
- switch (p->type) {
- case V4L2_FRMIVAL_TYPE_DISCRETE:
- dbgarg2("fps=%d/%d\n",
- p->discrete.numerator,
- p->discrete.denominator);
- break;
- case V4L2_FRMIVAL_TYPE_STEPWISE:
- dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n",
- p->stepwise.min.numerator,
- p->stepwise.min.denominator,
- p->stepwise.max.numerator,
- p->stepwise.max.denominator,
- p->stepwise.step.numerator,
- p->stepwise.step.denominator);
- break;
- case V4L2_FRMIVAL_TYPE_CONTINUOUS:
- dbgarg2("continuous\n");
- break;
- default:
- dbgarg2("- Unknown type!\n");
- }
- break;
- }
- case VIDIOC_DQEVENT:
- {
- struct v4l2_event *ev = arg;
-
- ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK);
- if (ret < 0) {
- dbgarg(cmd, "no pending events?");
- break;
- }
- dbgarg(cmd,
- "pending=%d, type=0x%8.8x, sequence=%d, "
- "timestamp=%lu.%9.9lu ",
- ev->pending, ev->type, ev->sequence,
- ev->timestamp.tv_sec, ev->timestamp.tv_nsec);
- break;
- }
- case VIDIOC_SUBSCRIBE_EVENT:
- {
- struct v4l2_event_subscription *sub = arg;
-
- ret = ops->vidioc_subscribe_event(fh, sub);
- if (ret < 0) {
- dbgarg(cmd, "failed, ret=%ld", ret);
- break;
- }
- dbgarg(cmd, "type=0x%8.8x", sub->type);
- break;
- }
- case VIDIOC_UNSUBSCRIBE_EVENT:
- {
- struct v4l2_event_subscription *sub = arg;
-
- ret = ops->vidioc_unsubscribe_event(fh, sub);
- if (ret < 0) {
- dbgarg(cmd, "failed, ret=%ld", ret);
- break;
- }
- dbgarg(cmd, "type=0x%8.8x", sub->type);
- break;
- }
default:
if (!ops->vidioc_default)
break;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 18/34] v4l2-ioctl.c: finalize table conversion.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (15 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 17/34] v4l2-ioctl.c: use the new table for the remaining ioctls Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry Hans Verkuil
` (15 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Implement the default case which finalizes the table conversion and allows
us to remove the last part of the switch.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-ioctl.c | 35 +++++++++++++----------------------
1 file changed, 13 insertions(+), 22 deletions(-)
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 2ec1755..0531d9a 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -855,6 +855,11 @@ static void v4l_print_newline(const void *arg, bool write_only)
pr_cont("\n");
}
+static void v4l_print_default(const void *arg, bool write_only)
+{
+ pr_cont("driver-specific ioctl\n");
+}
+
static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
{
__u32 i;
@@ -1838,12 +1843,6 @@ struct v4l2_ioctl_info {
sizeof(((struct v4l2_struct *)0)->field)) << 16)
#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
-#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \
- .ioctl = _ioctl, \
- .flags = _flags, \
- .name = #_ioctl, \
-}
-
#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
[_IOC_NR(_ioctl)] = { \
.ioctl = _ioctl, \
@@ -2027,12 +2026,12 @@ static long __video_do_ioctl(struct file *file,
} else {
default_info.ioctl = cmd;
default_info.flags = 0;
- default_info.debug = NULL;
+ default_info.debug = v4l_print_default;
info = &default_info;
}
write_only = _IOC_DIR(cmd) == _IOC_WRITE;
- if (info->debug && write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
+ if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
v4l_print_ioctl(vfd->name, cmd);
pr_cont(": ");
info->debug(arg, write_only);
@@ -2043,22 +2042,16 @@ static long __video_do_ioctl(struct file *file,
const vidioc_op *vidioc = p + info->offset;
ret = (*vidioc)(file, fh, arg);
- goto done;
} else if (info->flags & INFO_FL_FUNC) {
ret = info->func(ops, file, fh, arg);
- goto done;
+ } else if (!ops->vidioc_default) {
+ ret = -ENOTTY;
+ } else {
+ ret = ops->vidioc_default(file, fh,
+ use_fh_prio ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
+ cmd, arg);
}
- switch (cmd) {
- default:
- if (!ops->vidioc_default)
- break;
- ret = ops->vidioc_default(file, fh, use_fh_prio ?
- v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
- cmd, arg);
- break;
- } /* switch */
-
done:
if (vfd->debug) {
if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
@@ -2072,8 +2065,6 @@ done:
pr_cont(": error %ld\n", ret);
else if (vfd->debug == V4L2_DEBUG_IOCTL)
pr_cont("\n");
- else if (!info->debug)
- return ret;
else if (_IOC_DIR(cmd) == _IOC_NONE)
info->debug(arg, write_only);
else {
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (16 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 18/34] v4l2-ioctl.c: finalize table conversion Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-27 9:54 ` Laurent Pinchart
2012-06-22 12:21 ` [RFCv2 PATCH 20/34] v4l2-ioctl: remove v4l_(i2c_)print_ioctl Hans Verkuil
` (14 subsequent siblings)
32 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Since this could theoretically change the debug value while in the middle
of v4l2-ioctl.c, we make a copy of vfd->debug to ensure consistent debug
behavior.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-dev.c | 24 ++++++++++++++++++++++++
drivers/media/video/v4l2-ioctl.c | 9 +++++----
2 files changed, 29 insertions(+), 4 deletions(-)
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 1500208..5c0bb18 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -46,6 +46,29 @@ static ssize_t show_index(struct device *cd,
return sprintf(buf, "%i\n", vdev->index);
}
+static ssize_t show_debug(struct device *cd,
+ struct device_attribute *attr, char *buf)
+{
+ struct video_device *vdev = to_video_device(cd);
+
+ return sprintf(buf, "%i\n", vdev->debug);
+}
+
+static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct video_device *vdev = to_video_device(cd);
+ int res = 0;
+ u16 value;
+
+ res = kstrtou16(buf, 0, &value);
+ if (res)
+ return res;
+
+ vdev->debug = value;
+ return len;
+}
+
static ssize_t show_name(struct device *cd,
struct device_attribute *attr, char *buf)
{
@@ -56,6 +79,7 @@ static ssize_t show_name(struct device *cd,
static struct device_attribute video_device_attrs[] = {
__ATTR(name, S_IRUGO, show_name, NULL),
+ __ATTR(debug, 0644, show_debug, set_debug),
__ATTR(index, S_IRUGO, show_index, NULL),
__ATTR_NULL
};
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 0531d9a..2e1421b 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -1998,6 +1998,7 @@ static long __video_do_ioctl(struct file *file,
void *fh = file->private_data;
struct v4l2_fh *vfh = NULL;
int use_fh_prio = 0;
+ int debug = vfd->debug;
long ret = -ENOTTY;
if (ops == NULL) {
@@ -2031,7 +2032,7 @@ static long __video_do_ioctl(struct file *file,
}
write_only = _IOC_DIR(cmd) == _IOC_WRITE;
- if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
+ if (write_only && debug > V4L2_DEBUG_IOCTL) {
v4l_print_ioctl(vfd->name, cmd);
pr_cont(": ");
info->debug(arg, write_only);
@@ -2053,8 +2054,8 @@ static long __video_do_ioctl(struct file *file,
}
done:
- if (vfd->debug) {
- if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
+ if (debug) {
+ if (write_only && debug > V4L2_DEBUG_IOCTL) {
if (ret < 0)
printk(KERN_DEBUG "%s: error %ld\n",
video_device_node_name(vfd), ret);
@@ -2063,7 +2064,7 @@ done:
v4l_print_ioctl(vfd->name, cmd);
if (ret < 0)
pr_cont(": error %ld\n", ret);
- else if (vfd->debug == V4L2_DEBUG_IOCTL)
+ else if (debug == V4L2_DEBUG_IOCTL)
pr_cont("\n");
else if (_IOC_DIR(cmd) == _IOC_NONE)
info->debug(arg, write_only);
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry.
2012-06-22 12:21 ` [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry Hans Verkuil
@ 2012-06-27 9:54 ` Laurent Pinchart
2012-06-27 10:38 ` Hans Verkuil
0 siblings, 1 reply; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 9:54 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
Hi Hans,
Thanks for the patch.
On Friday 22 June 2012 14:21:13 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Since this could theoretically change the debug value while in the middle
> of v4l2-ioctl.c, we make a copy of vfd->debug to ensure consistent debug
> behavior.
In my review of RFCv1, I wrote that this could introduce a race condition:
"You test the debug value several times in the __video_do_ioctl() function. I
haven't checked in details whether changing the value between the two tests
could for instance lead to a KERN_CONT print without a previous non-KERN_CONT
message. That won't crash the machine but it should still be avoided."
Have you verified whether that problem can occur ?
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
> drivers/media/video/v4l2-dev.c | 24 ++++++++++++++++++++++++
> drivers/media/video/v4l2-ioctl.c | 9 +++++----
> 2 files changed, 29 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
> index 1500208..5c0bb18 100644
> --- a/drivers/media/video/v4l2-dev.c
> +++ b/drivers/media/video/v4l2-dev.c
> @@ -46,6 +46,29 @@ static ssize_t show_index(struct device *cd,
> return sprintf(buf, "%i\n", vdev->index);
> }
>
> +static ssize_t show_debug(struct device *cd,
> + struct device_attribute *attr, char *buf)
> +{
> + struct video_device *vdev = to_video_device(cd);
> +
> + return sprintf(buf, "%i\n", vdev->debug);
> +}
> +
> +static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
> + const char *buf, size_t len)
> +{
> + struct video_device *vdev = to_video_device(cd);
> + int res = 0;
> + u16 value;
> +
> + res = kstrtou16(buf, 0, &value);
> + if (res)
> + return res;
> +
> + vdev->debug = value;
> + return len;
> +}
> +
> static ssize_t show_name(struct device *cd,
> struct device_attribute *attr, char *buf)
> {
> @@ -56,6 +79,7 @@ static ssize_t show_name(struct device *cd,
>
> static struct device_attribute video_device_attrs[] = {
> __ATTR(name, S_IRUGO, show_name, NULL),
> + __ATTR(debug, 0644, show_debug, set_debug),
> __ATTR(index, S_IRUGO, show_index, NULL),
> __ATTR_NULL
> };
> diff --git a/drivers/media/video/v4l2-ioctl.c
> b/drivers/media/video/v4l2-ioctl.c index 0531d9a..2e1421b 100644
> --- a/drivers/media/video/v4l2-ioctl.c
> +++ b/drivers/media/video/v4l2-ioctl.c
> @@ -1998,6 +1998,7 @@ static long __video_do_ioctl(struct file *file,
> void *fh = file->private_data;
> struct v4l2_fh *vfh = NULL;
> int use_fh_prio = 0;
> + int debug = vfd->debug;
> long ret = -ENOTTY;
>
> if (ops == NULL) {
> @@ -2031,7 +2032,7 @@ static long __video_do_ioctl(struct file *file,
> }
>
> write_only = _IOC_DIR(cmd) == _IOC_WRITE;
> - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> + if (write_only && debug > V4L2_DEBUG_IOCTL) {
> v4l_print_ioctl(vfd->name, cmd);
> pr_cont(": ");
> info->debug(arg, write_only);
> @@ -2053,8 +2054,8 @@ static long __video_do_ioctl(struct file *file,
> }
>
> done:
> - if (vfd->debug) {
> - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> + if (debug) {
> + if (write_only && debug > V4L2_DEBUG_IOCTL) {
> if (ret < 0)
> printk(KERN_DEBUG "%s: error %ld\n",
> video_device_node_name(vfd), ret);
> @@ -2063,7 +2064,7 @@ done:
> v4l_print_ioctl(vfd->name, cmd);
> if (ret < 0)
> pr_cont(": error %ld\n", ret);
> - else if (vfd->debug == V4L2_DEBUG_IOCTL)
> + else if (debug == V4L2_DEBUG_IOCTL)
> pr_cont("\n");
> else if (_IOC_DIR(cmd) == _IOC_NONE)
> info->debug(arg, write_only);
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry.
2012-06-27 9:54 ` Laurent Pinchart
@ 2012-06-27 10:38 ` Hans Verkuil
2012-06-27 10:52 ` Laurent Pinchart
0 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-27 10:38 UTC (permalink / raw)
To: Laurent Pinchart
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
On Wed 27 June 2012 11:54:40 Laurent Pinchart wrote:
> Hi Hans,
>
> Thanks for the patch.
>
> On Friday 22 June 2012 14:21:13 Hans Verkuil wrote:
> > From: Hans Verkuil <hans.verkuil@cisco.com>
> >
> > Since this could theoretically change the debug value while in the middle
> > of v4l2-ioctl.c, we make a copy of vfd->debug to ensure consistent debug
> > behavior.
>
> In my review of RFCv1, I wrote that this could introduce a race condition:
>
> "You test the debug value several times in the __video_do_ioctl() function. I
> haven't checked in details whether changing the value between the two tests
> could for instance lead to a KERN_CONT print without a previous non-KERN_CONT
> message. That won't crash the machine but it should still be avoided."
>
> Have you verified whether that problem can occur ?
Yes, this problem can occur. Which is why I've changed the code accordingly.
Regards,
Hans
>
> > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > ---
> > drivers/media/video/v4l2-dev.c | 24 ++++++++++++++++++++++++
> > drivers/media/video/v4l2-ioctl.c | 9 +++++----
> > 2 files changed, 29 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
> > index 1500208..5c0bb18 100644
> > --- a/drivers/media/video/v4l2-dev.c
> > +++ b/drivers/media/video/v4l2-dev.c
> > @@ -46,6 +46,29 @@ static ssize_t show_index(struct device *cd,
> > return sprintf(buf, "%i\n", vdev->index);
> > }
> >
> > +static ssize_t show_debug(struct device *cd,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct video_device *vdev = to_video_device(cd);
> > +
> > + return sprintf(buf, "%i\n", vdev->debug);
> > +}
> > +
> > +static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
> > + const char *buf, size_t len)
> > +{
> > + struct video_device *vdev = to_video_device(cd);
> > + int res = 0;
> > + u16 value;
> > +
> > + res = kstrtou16(buf, 0, &value);
> > + if (res)
> > + return res;
> > +
> > + vdev->debug = value;
> > + return len;
> > +}
> > +
> > static ssize_t show_name(struct device *cd,
> > struct device_attribute *attr, char *buf)
> > {
> > @@ -56,6 +79,7 @@ static ssize_t show_name(struct device *cd,
> >
> > static struct device_attribute video_device_attrs[] = {
> > __ATTR(name, S_IRUGO, show_name, NULL),
> > + __ATTR(debug, 0644, show_debug, set_debug),
> > __ATTR(index, S_IRUGO, show_index, NULL),
> > __ATTR_NULL
> > };
> > diff --git a/drivers/media/video/v4l2-ioctl.c
> > b/drivers/media/video/v4l2-ioctl.c index 0531d9a..2e1421b 100644
> > --- a/drivers/media/video/v4l2-ioctl.c
> > +++ b/drivers/media/video/v4l2-ioctl.c
> > @@ -1998,6 +1998,7 @@ static long __video_do_ioctl(struct file *file,
> > void *fh = file->private_data;
> > struct v4l2_fh *vfh = NULL;
> > int use_fh_prio = 0;
> > + int debug = vfd->debug;
> > long ret = -ENOTTY;
> >
> > if (ops == NULL) {
> > @@ -2031,7 +2032,7 @@ static long __video_do_ioctl(struct file *file,
> > }
> >
> > write_only = _IOC_DIR(cmd) == _IOC_WRITE;
> > - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> > + if (write_only && debug > V4L2_DEBUG_IOCTL) {
> > v4l_print_ioctl(vfd->name, cmd);
> > pr_cont(": ");
> > info->debug(arg, write_only);
> > @@ -2053,8 +2054,8 @@ static long __video_do_ioctl(struct file *file,
> > }
> >
> > done:
> > - if (vfd->debug) {
> > - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> > + if (debug) {
> > + if (write_only && debug > V4L2_DEBUG_IOCTL) {
> > if (ret < 0)
> > printk(KERN_DEBUG "%s: error %ld\n",
> > video_device_node_name(vfd), ret);
> > @@ -2063,7 +2064,7 @@ done:
> > v4l_print_ioctl(vfd->name, cmd);
> > if (ret < 0)
> > pr_cont(": error %ld\n", ret);
> > - else if (vfd->debug == V4L2_DEBUG_IOCTL)
> > + else if (debug == V4L2_DEBUG_IOCTL)
> > pr_cont("\n");
> > else if (_IOC_DIR(cmd) == _IOC_NONE)
> > info->debug(arg, write_only);
>
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry.
2012-06-27 10:38 ` Hans Verkuil
@ 2012-06-27 10:52 ` Laurent Pinchart
0 siblings, 0 replies; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 10:52 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
Hi Hans,
On Wednesday 27 June 2012 12:38:54 Hans Verkuil wrote:
> On Wed 27 June 2012 11:54:40 Laurent Pinchart wrote:
> > On Friday 22 June 2012 14:21:13 Hans Verkuil wrote:
> > > From: Hans Verkuil <hans.verkuil@cisco.com>
> > >
> > > Since this could theoretically change the debug value while in the
> > > middle of v4l2-ioctl.c, we make a copy of vfd->debug to ensure
> > > consistent debug behavior.
> >
> > In my review of RFCv1, I wrote that this could introduce a race condition:
> >
> > "You test the debug value several times in the __video_do_ioctl()
> > function. I haven't checked in details whether changing the value between
> > the two tests could for instance lead to a KERN_CONT print without a
> > previous non-KERN_CONT message. That won't crash the machine but it
> > should still be avoided."
> >
> > Have you verified whether that problem can occur ?
>
> Yes, this problem can occur. Which is why I've changed the code accordingly.
I've missed that. My bad, sorry.
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread
* [RFCv2 PATCH 20/34] v4l2-ioctl: remove v4l_(i2c_)print_ioctl
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (17 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 19/34] v4l2-dev.c: add debug sysfs entry Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 21/34] ivtv: don't mess with vfd->debug Hans Verkuil
` (13 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
v4l_i2c_print_ioctl wasn't used and v4l_print_ioctl could be replaced by
v4l_printk_ioctl.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 4 ++--
drivers/media/video/sn9c102/sn9c102.h | 2 +-
drivers/media/video/uvc/uvc_v4l2.c | 2 +-
drivers/media/video/v4l2-ioctl.c | 34 +++++++---------------------
include/media/v4l2-ioctl.h | 20 +++-------------
5 files changed, 15 insertions(+), 47 deletions(-)
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
index 7bddfae..81ac586 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
@@ -965,7 +965,7 @@ static long pvr2_v4l2_ioctl(struct file *file,
long ret = -EINVAL;
if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL)
- v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
+ v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
if (!pvr2_hdw_dev_ok(hdw)) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
@@ -998,7 +998,7 @@ static long pvr2_v4l2_ioctl(struct file *file,
pvr2_trace(PVR2_TRACE_V4LIOCTL,
"pvr2_v4l2_do_ioctl failure, ret=%ld"
" command was:", ret);
- v4l_print_ioctl(pvr2_hdw_get_driver_name(hdw),
+ v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw),
cmd);
}
}
diff --git a/drivers/media/video/sn9c102/sn9c102.h b/drivers/media/video/sn9c102/sn9c102.h
index 22ea211..2bc153e 100644
--- a/drivers/media/video/sn9c102/sn9c102.h
+++ b/drivers/media/video/sn9c102/sn9c102.h
@@ -182,7 +182,7 @@ do { \
# define V4LDBG(level, name, cmd) \
do { \
if (debug >= (level)) \
- v4l_print_ioctl(name, cmd); \
+ v4l_printk_ioctl(name, cmd); \
} while (0)
# define KDBG(level, fmt, args...) \
do { \
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index 759bef8..f00db30 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -1051,7 +1051,7 @@ static long uvc_v4l2_ioctl(struct file *file,
{
if (uvc_trace_param & UVC_TRACE_IOCTL) {
uvc_printk(KERN_DEBUG, "uvc_v4l2_ioctl(");
- v4l_printk_ioctl(cmd);
+ v4l_printk_ioctl(NULL, cmd);
printk(")\n");
}
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 2e1421b..efbb3db 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -28,27 +28,6 @@
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
-#define dbgarg(cmd, fmt, arg...) \
- do { \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \
- printk(KERN_DEBUG "%s: ", vfd->name); \
- v4l_printk_ioctl(cmd); \
- printk(" " fmt, ## arg); \
- } \
- } while (0)
-
-#define dbgarg2(fmt, arg...) \
- do { \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
- printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\
- } while (0)
-
-#define dbgarg3(fmt, arg...) \
- do { \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
- printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\
- } while (0)
-
/* Zero out the end of the struct pointed to by p. Everything after, but
* not including, the specified field is cleared. */
#define CLEAR_AFTER_FIELD(p, field) \
@@ -1955,10 +1934,13 @@ bool v4l2_is_known_ioctl(unsigned int cmd)
/* Common ioctl debug function. This function can be used by
external ioctl messages as well as internal V4L ioctl */
-void v4l_printk_ioctl(unsigned int cmd)
+void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
{
const char *dir, *type;
+ if (prefix)
+ printk(KERN_DEBUG "%s: ", prefix);
+
switch (_IOC_TYPE(cmd)) {
case 'd':
type = "v4l2_int";
@@ -2002,8 +1984,8 @@ static long __video_do_ioctl(struct file *file,
long ret = -ENOTTY;
if (ops == NULL) {
- printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n",
- vfd->name);
+ pr_warn("%s: has no ioctl_ops.\n",
+ video_device_node_name(vfd));
return ret;
}
@@ -2033,7 +2015,7 @@ static long __video_do_ioctl(struct file *file,
write_only = _IOC_DIR(cmd) == _IOC_WRITE;
if (write_only && debug > V4L2_DEBUG_IOCTL) {
- v4l_print_ioctl(vfd->name, cmd);
+ v4l_printk_ioctl(video_device_node_name(vfd), cmd);
pr_cont(": ");
info->debug(arg, write_only);
}
@@ -2061,7 +2043,7 @@ done:
video_device_node_name(vfd), ret);
return ret;
}
- v4l_print_ioctl(vfd->name, cmd);
+ v4l_printk_ioctl(video_device_node_name(vfd), cmd);
if (ret < 0)
pr_cont(": error %ld\n", ret);
else if (debug == V4L2_DEBUG_IOCTL)
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index d8b76f7..dfd984f 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -295,28 +295,14 @@ struct v4l2_ioctl_ops {
#define V4L2_DEBUG_IOCTL 0x01
#define V4L2_DEBUG_IOCTL_ARG 0x02
-/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */
-#define v4l_print_ioctl(name, cmd) \
- do { \
- printk(KERN_DEBUG "%s: ", name); \
- v4l_printk_ioctl(cmd); \
- } while (0)
-
-/* Use this macro in I2C drivers where 'client' is the struct i2c_client
- pointer */
-#define v4l_i2c_print_ioctl(client, cmd) \
- do { \
- v4l_client_printk(KERN_DEBUG, client, ""); \
- v4l_printk_ioctl(cmd); \
- } while (0)
-
/* Video standard functions */
extern const char *v4l2_norm_to_name(v4l2_std_id id);
extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod);
extern int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, const char *name);
-/* Prints the ioctl in a human-readable format */
-extern void v4l_printk_ioctl(unsigned int cmd);
+/* Prints the ioctl in a human-readable format. If prefix != NULL,
+ then do printk(KERN_DEBUG "%s: ", prefix) first. */
+extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd);
/* names for fancy debug output */
extern const char *v4l2_field_names[];
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 21/34] ivtv: don't mess with vfd->debug.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (18 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 20/34] v4l2-ioctl: remove v4l_(i2c_)print_ioctl Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 22/34] cx18: " Hans Verkuil
` (12 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
This is now controlled by sysfs.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/ivtv/ivtv-ioctl.c | 12 ------------
drivers/media/video/ivtv/ivtv-ioctl.h | 1 -
drivers/media/video/ivtv/ivtv-streams.c | 4 ++--
3 files changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index f7d57b3..32a5910 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -1830,18 +1830,6 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
return 0;
}
-long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct video_device *vfd = video_devdata(filp);
- long ret;
-
- if (ivtv_debug & IVTV_DBGFLG_IOCTL)
- vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
- ret = video_ioctl2(filp, cmd, arg);
- vfd->debug = 0;
- return ret;
-}
-
static const struct v4l2_ioctl_ops ivtv_ioctl_ops = {
.vidioc_querycap = ivtv_querycap,
.vidioc_s_audio = ivtv_s_audio,
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.h b/drivers/media/video/ivtv/ivtv-ioctl.h
index 89185ca..7c553d1 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.h
+++ b/drivers/media/video/ivtv/ivtv-ioctl.h
@@ -31,6 +31,5 @@ void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id *std);
void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id *std);
int ivtv_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf);
int ivtv_s_input(struct file *file, void *fh, unsigned int inp);
-long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
#endif
diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c
index 6738592..87990c5 100644
--- a/drivers/media/video/ivtv/ivtv-streams.c
+++ b/drivers/media/video/ivtv/ivtv-streams.c
@@ -50,7 +50,7 @@ static const struct v4l2_file_operations ivtv_v4l2_enc_fops = {
.read = ivtv_v4l2_read,
.write = ivtv_v4l2_write,
.open = ivtv_v4l2_open,
- .unlocked_ioctl = ivtv_v4l2_ioctl,
+ .unlocked_ioctl = video_ioctl2,
.release = ivtv_v4l2_close,
.poll = ivtv_v4l2_enc_poll,
};
@@ -60,7 +60,7 @@ static const struct v4l2_file_operations ivtv_v4l2_dec_fops = {
.read = ivtv_v4l2_read,
.write = ivtv_v4l2_write,
.open = ivtv_v4l2_open,
- .unlocked_ioctl = ivtv_v4l2_ioctl,
+ .unlocked_ioctl = video_ioctl2,
.release = ivtv_v4l2_close,
.poll = ivtv_v4l2_dec_poll,
};
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 22/34] cx18: don't mess with vfd->debug.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (19 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 21/34] ivtv: don't mess with vfd->debug Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs Hans Verkuil
` (11 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
This is now controlled by sysfs.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/cx18/cx18-ioctl.c | 18 ------------------
drivers/media/video/cx18/cx18-ioctl.h | 2 --
drivers/media/video/cx18/cx18-streams.c | 4 ++--
3 files changed, 2 insertions(+), 22 deletions(-)
diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c
index 35fde4e..e9912db 100644
--- a/drivers/media/video/cx18/cx18-ioctl.c
+++ b/drivers/media/video/cx18/cx18-ioctl.c
@@ -1142,24 +1142,6 @@ static long cx18_default(struct file *file, void *fh, bool valid_prio,
return 0;
}
-long cx18_v4l2_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- struct video_device *vfd = video_devdata(filp);
- struct cx18_open_id *id = file2id(filp);
- struct cx18 *cx = id->cx;
- long res;
-
- mutex_lock(&cx->serialize_lock);
-
- if (cx18_debug & CX18_DBGFLG_IOCTL)
- vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
- res = video_ioctl2(filp, cmd, arg);
- vfd->debug = 0;
- mutex_unlock(&cx->serialize_lock);
- return res;
-}
-
static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
.vidioc_querycap = cx18_querycap,
.vidioc_s_audio = cx18_s_audio,
diff --git a/drivers/media/video/cx18/cx18-ioctl.h b/drivers/media/video/cx18/cx18-ioctl.h
index dcb2559..2f9dd59 100644
--- a/drivers/media/video/cx18/cx18-ioctl.h
+++ b/drivers/media/video/cx18/cx18-ioctl.h
@@ -29,5 +29,3 @@ void cx18_set_funcs(struct video_device *vdev);
int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std);
int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf);
int cx18_s_input(struct file *file, void *fh, unsigned int inp);
-long cx18_v4l2_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg);
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 4185bcb..9d598ab 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -40,8 +40,7 @@ static struct v4l2_file_operations cx18_v4l2_enc_fops = {
.owner = THIS_MODULE,
.read = cx18_v4l2_read,
.open = cx18_v4l2_open,
- /* FIXME change to video_ioctl2 if serialization lock can be removed */
- .unlocked_ioctl = cx18_v4l2_ioctl,
+ .unlocked_ioctl = video_ioctl2,
.release = cx18_v4l2_close,
.poll = cx18_v4l2_enc_poll,
.mmap = cx18_v4l2_mmap,
@@ -376,6 +375,7 @@ static int cx18_prep_dev(struct cx18 *cx, int type)
s->video_dev->fops = &cx18_v4l2_enc_fops;
s->video_dev->release = video_device_release;
s->video_dev->tvnorms = V4L2_STD_ALL;
+ s->video_dev->lock = &cx->serialize_lock;
set_bit(V4L2_FL_USE_FH_PRIO, &s->video_dev->flags);
cx18_set_funcs(s->video_dev);
return 0;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (20 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 22/34] cx18: " Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-27 9:52 ` Laurent Pinchart
2012-06-22 12:21 ` [RFCv2 PATCH 24/34] vb2-core: add support for count == 0 in create_bufs Hans Verkuil
` (10 subsequent siblings)
32 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Split off the memory and type validation. This is done both from reqbufs and
create_bufs, and will also be done by vb2 helpers in a later patch.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/videobuf2-core.c | 153 ++++++++++++++++++----------------
1 file changed, 80 insertions(+), 73 deletions(-)
diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c
index 9d4e9ed..8486e33 100644
--- a/drivers/media/video/videobuf2-core.c
+++ b/drivers/media/video/videobuf2-core.c
@@ -454,7 +454,53 @@ static int __verify_mmap_ops(struct vb2_queue *q)
}
/**
- * vb2_reqbufs() - Initiate streaming
+ * __verify_memory_type() - do basic checks for memory and type
+ */
+static int __verify_memory_type(struct vb2_queue *q, __u32 memory, __u32 type)
+{
+ if (memory != V4L2_MEMORY_MMAP && memory != V4L2_MEMORY_USERPTR) {
+ dprintk(1, "reqbufs: unsupported memory type\n");
+ return -EINVAL;
+ }
+
+ if (type != q->type) {
+ dprintk(1, "reqbufs: requested type is incorrect\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Make sure all the required memory ops for given memory type
+ * are available.
+ */
+ if (memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
+ dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
+ return -EINVAL;
+ }
+
+ if (memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
+ dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Place the busy tests at the end: -EBUSY can be ignored when
+ * create_bufs is called with count == 0, but count == 0 should still
+ * do the memory and type validation.
+ */
+ if (q->fileio) {
+ dprintk(1, "reqbufs: file io in progress\n");
+ return -EBUSY;
+ }
+
+ if (q->streaming) {
+ dprintk(1, "reqbufs: streaming active\n");
+ return -EBUSY;
+ }
+ return 0;
+}
+
+/**
+ * __reqbufs() - Initiate streaming
* @q: videobuf2 queue
* @req: struct passed from userspace to vidioc_reqbufs handler in driver
*
@@ -476,45 +522,10 @@ static int __verify_mmap_ops(struct vb2_queue *q)
* The return values from this function are intended to be directly returned
* from vidioc_reqbufs handler in driver.
*/
-int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
+static int __reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
{
unsigned int num_buffers, allocated_buffers, num_planes = 0;
- int ret = 0;
-
- if (q->fileio) {
- dprintk(1, "reqbufs: file io in progress\n");
- return -EBUSY;
- }
-
- if (req->memory != V4L2_MEMORY_MMAP
- && req->memory != V4L2_MEMORY_USERPTR) {
- dprintk(1, "reqbufs: unsupported memory type\n");
- return -EINVAL;
- }
-
- if (req->type != q->type) {
- dprintk(1, "reqbufs: requested type is incorrect\n");
- return -EINVAL;
- }
-
- if (q->streaming) {
- dprintk(1, "reqbufs: streaming active\n");
- return -EBUSY;
- }
-
- /*
- * Make sure all the required memory ops for given memory type
- * are available.
- */
- if (req->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
- dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
- return -EINVAL;
- }
-
- if (req->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
- dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
- return -EINVAL;
- }
+ int ret;
if (req->count == 0 || q->num_buffers != 0 || q->memory != req->memory) {
/*
@@ -595,10 +606,23 @@ int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
return 0;
}
+
+/**
+ * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory and
+ * type values.
+ * @q: videobuf2 queue
+ * @req: struct passed from userspace to vidioc_reqbufs handler in driver
+ */
+int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
+{
+ int ret = __verify_memory_type(q, req->memory, req->type);
+
+ return ret ? ret : __reqbufs(q, req);
+}
EXPORT_SYMBOL_GPL(vb2_reqbufs);
/**
- * vb2_create_bufs() - Allocate buffers and any required auxiliary structs
+ * __create_bufs() - Allocate buffers and any required auxiliary structs
* @q: videobuf2 queue
* @create: creation parameters, passed from userspace to vidioc_create_bufs
* handler in driver
@@ -612,40 +636,10 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
* The return values from this function are intended to be directly returned
* from vidioc_create_bufs handler in driver.
*/
-int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
+static int __create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
{
unsigned int num_planes = 0, num_buffers, allocated_buffers;
- int ret = 0;
-
- if (q->fileio) {
- dprintk(1, "%s(): file io in progress\n", __func__);
- return -EBUSY;
- }
-
- if (create->memory != V4L2_MEMORY_MMAP
- && create->memory != V4L2_MEMORY_USERPTR) {
- dprintk(1, "%s(): unsupported memory type\n", __func__);
- return -EINVAL;
- }
-
- if (create->format.type != q->type) {
- dprintk(1, "%s(): requested type is incorrect\n", __func__);
- return -EINVAL;
- }
-
- /*
- * Make sure all the required memory ops for given memory type
- * are available.
- */
- if (create->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
- dprintk(1, "%s(): MMAP for current setup unsupported\n", __func__);
- return -EINVAL;
- }
-
- if (create->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
- dprintk(1, "%s(): USERPTR for current setup unsupported\n", __func__);
- return -EINVAL;
- }
+ int ret;
if (q->num_buffers == VIDEO_MAX_FRAME) {
dprintk(1, "%s(): maximum number of buffers already allocated\n",
@@ -653,8 +647,6 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
return -ENOBUFS;
}
- create->index = q->num_buffers;
-
if (!q->num_buffers) {
memset(q->plane_sizes, 0, sizeof(q->plane_sizes));
memset(q->alloc_ctx, 0, sizeof(q->alloc_ctx));
@@ -719,6 +711,21 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
return 0;
}
+
+/**
+ * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory and
+ * type values.
+ * @q: videobuf2 queue
+ * @create: creation parameters, passed from userspace to vidioc_create_bufs
+ * handler in driver
+ */
+int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
+{
+ int ret = __verify_memory_type(q, create->memory, create->format.type);
+
+ create->index = q->num_buffers;
+ return ret ? ret : __create_bufs(q, create);
+}
EXPORT_SYMBOL_GPL(vb2_create_bufs);
/**
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs.
2012-06-22 12:21 ` [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs Hans Verkuil
@ 2012-06-27 9:52 ` Laurent Pinchart
2012-06-27 10:37 ` Hans Verkuil
0 siblings, 1 reply; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 9:52 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
Hi Hans,
Thanks for the patch.
On Friday 22 June 2012 14:21:17 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Split off the memory and type validation. This is done both from reqbufs and
> create_bufs, and will also be done by vb2 helpers in a later patch.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
> drivers/media/video/videobuf2-core.c | 153 +++++++++++++++++--------------
> 1 file changed, 80 insertions(+), 73 deletions(-)
>
> diff --git a/drivers/media/video/videobuf2-core.c
> b/drivers/media/video/videobuf2-core.c index 9d4e9ed..8486e33 100644
> --- a/drivers/media/video/videobuf2-core.c
> +++ b/drivers/media/video/videobuf2-core.c
> @@ -454,7 +454,53 @@ static int __verify_mmap_ops(struct vb2_queue *q)
> }
>
> /**
> - * vb2_reqbufs() - Initiate streaming
> + * __verify_memory_type() - do basic checks for memory and type
I'd expand this comment a bit, as "basic checks" doesn't really tell much
about the purpose of the checks. Maybe something like
"Check whether the memory type and buffer type passed to a buffer operation
are compatible with the queue."
> + */
> +static int __verify_memory_type(struct vb2_queue *q, __u32 memory, __u32
> type)
What about using enum v4l2_memory and enum v4l2_buf_type instead of __u32 ?
> +{
> + if (memory != V4L2_MEMORY_MMAP && memory != V4L2_MEMORY_USERPTR) {
> + dprintk(1, "reqbufs: unsupported memory type\n");
> + return -EINVAL;
> + }
> +
> + if (type != q->type) {
> + dprintk(1, "reqbufs: requested type is incorrect\n");
> + return -EINVAL;
> + }
> +
> + /*
> + * Make sure all the required memory ops for given memory type
> + * are available.
> + */
> + if (memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> + dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
> + return -EINVAL;
> + }
> +
> + if (memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> + dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
> + return -EINVAL;
> + }
> +
> + /*
> + * Place the busy tests at the end: -EBUSY can be ignored when
> + * create_bufs is called with count == 0, but count == 0 should still
> + * do the memory and type validation.
> + */
> + if (q->fileio) {
> + dprintk(1, "reqbufs: file io in progress\n");
> + return -EBUSY;
> + }
> +
> + if (q->streaming) {
> + dprintk(1, "reqbufs: streaming active\n");
> + return -EBUSY;
> + }
create_bufs didn't check for q->streaming. Isn't it legal to add a buffer
during streaming ?
> + return 0;
> +}
> +
> +/**
> + * __reqbufs() - Initiate streaming
> * @q: videobuf2 queue
> * @req: struct passed from userspace to vidioc_reqbufs handler in driver
> *
> @@ -476,45 +522,10 @@ static int __verify_mmap_ops(struct vb2_queue *q)
> * The return values from this function are intended to be directly
> returned * from vidioc_reqbufs handler in driver.
> */
> -int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> +static int __reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> {
> unsigned int num_buffers, allocated_buffers, num_planes = 0;
> - int ret = 0;
> -
> - if (q->fileio) {
> - dprintk(1, "reqbufs: file io in progress\n");
> - return -EBUSY;
> - }
> -
> - if (req->memory != V4L2_MEMORY_MMAP
> - && req->memory != V4L2_MEMORY_USERPTR) {
> - dprintk(1, "reqbufs: unsupported memory type\n");
> - return -EINVAL;
> - }
> -
> - if (req->type != q->type) {
> - dprintk(1, "reqbufs: requested type is incorrect\n");
> - return -EINVAL;
> - }
> -
> - if (q->streaming) {
> - dprintk(1, "reqbufs: streaming active\n");
> - return -EBUSY;
> - }
> -
> - /*
> - * Make sure all the required memory ops for given memory type
> - * are available.
> - */
> - if (req->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> - dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
> - return -EINVAL;
> - }
> -
> - if (req->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> - dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
> - return -EINVAL;
> - }
> + int ret;
>
> if (req->count == 0 || q->num_buffers != 0 || q->memory != req->memory) {
> /*
> @@ -595,10 +606,23 @@ int vb2_reqbufs(struct vb2_queue *q, struct
> v4l2_requestbuffers *req)
>
> return 0;
> }
> +
> +/**
> + * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory
> and + * type values.
> + * @q: videobuf2 queue
> + * @req: struct passed from userspace to vidioc_reqbufs handler in driver
> + */
> +int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> +{
> + int ret = __verify_memory_type(q, req->memory, req->type);
> +
> + return ret ? ret : __reqbufs(q, req);
> +}
> EXPORT_SYMBOL_GPL(vb2_reqbufs);
>
> /**
> - * vb2_create_bufs() - Allocate buffers and any required auxiliary structs
> + * __create_bufs() - Allocate buffers and any required auxiliary structs
> * @q: videobuf2 queue
> * @create: creation parameters, passed from userspace to
> vidioc_create_bufs * handler in driver
> @@ -612,40 +636,10 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
> * The return values from this function are intended to be directly
> returned * from vidioc_create_bufs handler in driver.
> */
> -int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers
> *create) +static int __create_bufs(struct vb2_queue *q, struct
> v4l2_create_buffers *create) {
> unsigned int num_planes = 0, num_buffers, allocated_buffers;
> - int ret = 0;
> -
> - if (q->fileio) {
> - dprintk(1, "%s(): file io in progress\n", __func__);
> - return -EBUSY;
> - }
> -
> - if (create->memory != V4L2_MEMORY_MMAP
> - && create->memory != V4L2_MEMORY_USERPTR) {
> - dprintk(1, "%s(): unsupported memory type\n", __func__);
> - return -EINVAL;
> - }
> -
> - if (create->format.type != q->type) {
> - dprintk(1, "%s(): requested type is incorrect\n", __func__);
> - return -EINVAL;
> - }
> -
> - /*
> - * Make sure all the required memory ops for given memory type
> - * are available.
> - */
> - if (create->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> - dprintk(1, "%s(): MMAP for current setup unsupported\n", __func__);
> - return -EINVAL;
> - }
> -
> - if (create->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> - dprintk(1, "%s(): USERPTR for current setup unsupported\n",
__func__);
> - return -EINVAL;
> - }
> + int ret;
>
> if (q->num_buffers == VIDEO_MAX_FRAME) {
> dprintk(1, "%s(): maximum number of buffers already allocated\n",
> @@ -653,8 +647,6 @@ int vb2_create_bufs(struct vb2_queue *q, struct
> v4l2_create_buffers *create) return -ENOBUFS;
> }
>
> - create->index = q->num_buffers;
> -
> if (!q->num_buffers) {
> memset(q->plane_sizes, 0, sizeof(q->plane_sizes));
> memset(q->alloc_ctx, 0, sizeof(q->alloc_ctx));
> @@ -719,6 +711,21 @@ int vb2_create_bufs(struct vb2_queue *q, struct
> v4l2_create_buffers *create)
>
> return 0;
> }
> +
> +/**
> + * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory
> and + * type values.
> + * @q: videobuf2 queue
> + * @create: creation parameters, passed from userspace to
> vidioc_create_bufs + * handler in driver
> + */
> +int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers
> *create) +{
> + int ret = __verify_memory_type(q, create->memory, create->format.type);
> +
> + create->index = q->num_buffers;
I think this changes the behaviour of create_bufs, it should thus belong to
the next patch.
> + return ret ? ret : __create_bufs(q, create);
> +}
> EXPORT_SYMBOL_GPL(vb2_create_bufs);
>
> /**
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs.
2012-06-27 9:52 ` Laurent Pinchart
@ 2012-06-27 10:37 ` Hans Verkuil
2012-06-27 10:49 ` Laurent Pinchart
0 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-27 10:37 UTC (permalink / raw)
To: Laurent Pinchart
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
On Wed 27 June 2012 11:52:10 Laurent Pinchart wrote:
> Hi Hans,
>
> Thanks for the patch.
>
> On Friday 22 June 2012 14:21:17 Hans Verkuil wrote:
> > From: Hans Verkuil <hans.verkuil@cisco.com>
> >
> > Split off the memory and type validation. This is done both from reqbufs and
> > create_bufs, and will also be done by vb2 helpers in a later patch.
> >
> > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > ---
> > drivers/media/video/videobuf2-core.c | 153 +++++++++++++++++--------------
> > 1 file changed, 80 insertions(+), 73 deletions(-)
> >
> > diff --git a/drivers/media/video/videobuf2-core.c
> > b/drivers/media/video/videobuf2-core.c index 9d4e9ed..8486e33 100644
> > --- a/drivers/media/video/videobuf2-core.c
> > +++ b/drivers/media/video/videobuf2-core.c
> > @@ -454,7 +454,53 @@ static int __verify_mmap_ops(struct vb2_queue *q)
> > }
> >
> > /**
> > - * vb2_reqbufs() - Initiate streaming
> > + * __verify_memory_type() - do basic checks for memory and type
>
> I'd expand this comment a bit, as "basic checks" doesn't really tell much
> about the purpose of the checks. Maybe something like
>
> "Check whether the memory type and buffer type passed to a buffer operation
> are compatible with the queue."
In my opinion the code is clear about what is being tested, but I'll change
the comment.
> > + */
> > +static int __verify_memory_type(struct vb2_queue *q, __u32 memory, __u32
> > type)
>
> What about using enum v4l2_memory and enum v4l2_buf_type instead of __u32 ?
Will do.
>
> > +{
> > + if (memory != V4L2_MEMORY_MMAP && memory != V4L2_MEMORY_USERPTR) {
> > + dprintk(1, "reqbufs: unsupported memory type\n");
> > + return -EINVAL;
> > + }
> > +
> > + if (type != q->type) {
> > + dprintk(1, "reqbufs: requested type is incorrect\n");
> > + return -EINVAL;
> > + }
> > +
> > + /*
> > + * Make sure all the required memory ops for given memory type
> > + * are available.
> > + */
> > + if (memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> > + dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
> > + return -EINVAL;
> > + }
> > +
> > + if (memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> > + dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
> > + return -EINVAL;
> > + }
> > +
> > + /*
> > + * Place the busy tests at the end: -EBUSY can be ignored when
> > + * create_bufs is called with count == 0, but count == 0 should still
> > + * do the memory and type validation.
> > + */
> > + if (q->fileio) {
> > + dprintk(1, "reqbufs: file io in progress\n");
> > + return -EBUSY;
> > + }
> > +
> > + if (q->streaming) {
> > + dprintk(1, "reqbufs: streaming active\n");
> > + return -EBUSY;
> > + }
>
> create_bufs didn't check for q->streaming. Isn't it legal to add a buffer
> during streaming ?
Yes it is legal. Good catch!
> > + return 0;
> > +}
> > +
> > +/**
> > + * __reqbufs() - Initiate streaming
> > * @q: videobuf2 queue
> > * @req: struct passed from userspace to vidioc_reqbufs handler in driver
> > *
> > @@ -476,45 +522,10 @@ static int __verify_mmap_ops(struct vb2_queue *q)
> > * The return values from this function are intended to be directly
> > returned * from vidioc_reqbufs handler in driver.
> > */
> > -int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> > +static int __reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> > {
> > unsigned int num_buffers, allocated_buffers, num_planes = 0;
> > - int ret = 0;
> > -
> > - if (q->fileio) {
> > - dprintk(1, "reqbufs: file io in progress\n");
> > - return -EBUSY;
> > - }
> > -
> > - if (req->memory != V4L2_MEMORY_MMAP
> > - && req->memory != V4L2_MEMORY_USERPTR) {
> > - dprintk(1, "reqbufs: unsupported memory type\n");
> > - return -EINVAL;
> > - }
> > -
> > - if (req->type != q->type) {
> > - dprintk(1, "reqbufs: requested type is incorrect\n");
> > - return -EINVAL;
> > - }
> > -
> > - if (q->streaming) {
> > - dprintk(1, "reqbufs: streaming active\n");
> > - return -EBUSY;
> > - }
> > -
> > - /*
> > - * Make sure all the required memory ops for given memory type
> > - * are available.
> > - */
> > - if (req->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> > - dprintk(1, "reqbufs: MMAP for current setup unsupported\n");
> > - return -EINVAL;
> > - }
> > -
> > - if (req->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> > - dprintk(1, "reqbufs: USERPTR for current setup unsupported\n");
> > - return -EINVAL;
> > - }
> > + int ret;
> >
> > if (req->count == 0 || q->num_buffers != 0 || q->memory != req->memory) {
> > /*
> > @@ -595,10 +606,23 @@ int vb2_reqbufs(struct vb2_queue *q, struct
> > v4l2_requestbuffers *req)
> >
> > return 0;
> > }
> > +
> > +/**
> > + * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory
> > and + * type values.
> > + * @q: videobuf2 queue
> > + * @req: struct passed from userspace to vidioc_reqbufs handler in driver
> > + */
> > +int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
> > +{
> > + int ret = __verify_memory_type(q, req->memory, req->type);
> > +
> > + return ret ? ret : __reqbufs(q, req);
> > +}
> > EXPORT_SYMBOL_GPL(vb2_reqbufs);
> >
> > /**
> > - * vb2_create_bufs() - Allocate buffers and any required auxiliary structs
> > + * __create_bufs() - Allocate buffers and any required auxiliary structs
> > * @q: videobuf2 queue
> > * @create: creation parameters, passed from userspace to
> > vidioc_create_bufs * handler in driver
> > @@ -612,40 +636,10 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
> > * The return values from this function are intended to be directly
> > returned * from vidioc_create_bufs handler in driver.
> > */
> > -int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers
> > *create) +static int __create_bufs(struct vb2_queue *q, struct
> > v4l2_create_buffers *create) {
> > unsigned int num_planes = 0, num_buffers, allocated_buffers;
> > - int ret = 0;
> > -
> > - if (q->fileio) {
> > - dprintk(1, "%s(): file io in progress\n", __func__);
> > - return -EBUSY;
> > - }
> > -
> > - if (create->memory != V4L2_MEMORY_MMAP
> > - && create->memory != V4L2_MEMORY_USERPTR) {
> > - dprintk(1, "%s(): unsupported memory type\n", __func__);
> > - return -EINVAL;
> > - }
> > -
> > - if (create->format.type != q->type) {
> > - dprintk(1, "%s(): requested type is incorrect\n", __func__);
> > - return -EINVAL;
> > - }
> > -
> > - /*
> > - * Make sure all the required memory ops for given memory type
> > - * are available.
> > - */
> > - if (create->memory == V4L2_MEMORY_MMAP && __verify_mmap_ops(q)) {
> > - dprintk(1, "%s(): MMAP for current setup unsupported\n", __func__);
> > - return -EINVAL;
> > - }
> > -
> > - if (create->memory == V4L2_MEMORY_USERPTR && __verify_userptr_ops(q)) {
> > - dprintk(1, "%s(): USERPTR for current setup unsupported\n",
> __func__);
> > - return -EINVAL;
> > - }
> > + int ret;
> >
> > if (q->num_buffers == VIDEO_MAX_FRAME) {
> > dprintk(1, "%s(): maximum number of buffers already allocated\n",
> > @@ -653,8 +647,6 @@ int vb2_create_bufs(struct vb2_queue *q, struct
> > v4l2_create_buffers *create) return -ENOBUFS;
> > }
> >
> > - create->index = q->num_buffers;
> > -
> > if (!q->num_buffers) {
> > memset(q->plane_sizes, 0, sizeof(q->plane_sizes));
> > memset(q->alloc_ctx, 0, sizeof(q->alloc_ctx));
> > @@ -719,6 +711,21 @@ int vb2_create_bufs(struct vb2_queue *q, struct
> > v4l2_create_buffers *create)
> >
> > return 0;
> > }
> > +
> > +/**
> > + * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the memory
> > and + * type values.
> > + * @q: videobuf2 queue
> > + * @create: creation parameters, passed from userspace to
> > vidioc_create_bufs + * handler in driver
> > + */
> > +int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers
> > *create) +{
> > + int ret = __verify_memory_type(q, create->memory, create->format.type);
> > +
> > + create->index = q->num_buffers;
>
> I think this changes the behaviour of create_bufs, it should thus belong to
> the next patch.
No, I don't think this changes the behavior as far as I can tell.
Regards,
Hans
>
> > + return ret ? ret : __create_bufs(q, create);
> > +}
> > EXPORT_SYMBOL_GPL(vb2_create_bufs);
> >
> > /**
>
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs.
2012-06-27 10:37 ` Hans Verkuil
@ 2012-06-27 10:49 ` Laurent Pinchart
0 siblings, 0 replies; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 10:49 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
On Wednesday 27 June 2012 12:37:21 Hans Verkuil wrote:
> On Wed 27 June 2012 11:52:10 Laurent Pinchart wrote:
> > On Friday 22 June 2012 14:21:17 Hans Verkuil wrote:
> > > From: Hans Verkuil <hans.verkuil@cisco.com>
> > >
> > > Split off the memory and type validation. This is done both from reqbufs
> > > and create_bufs, and will also be done by vb2 helpers in a later patch.
> > >
> > > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[snip]
> > > +
> > > +/**
> > > + * vb2_reqbufs() - Wrapper for __reqbufs() that also verifies the
> > > memory and
> > > + * type values.
> > > + * @q: videobuf2 queue
> > > + * @create: creation parameters, passed from userspace to
> > > vidioc_create_bufs
> > > + * handler in driver
> > > + */
> > > +int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers
> > > *create)
> > > +{
> > > + int ret = __verify_memory_type(q, create->memory,
> > > create->format.type);
> > > +
> > > + create->index = q->num_buffers;
> >
> > I think this changes the behaviour of create_bufs, it should thus belong
> > to the next patch.
>
> No, I don't think this changes the behavior as far as I can tell.
Without your patch create->index isn't modified if the checks fail. On the
other hand, I've just remembered that video_usercopy won't copy the structure
back to userspace if ret < 0, so you should be right.
> > > + return ret ? ret : __create_bufs(q, create);
> > > +}
> > >
> > > EXPORT_SYMBOL_GPL(vb2_create_bufs);
> > >
> > > /**
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread
* [RFCv2 PATCH 24/34] vb2-core: add support for count == 0 in create_bufs.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (21 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 23/34] vb2-core: refactor reqbufs/create_bufs Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 25/34] Spec: document CREATE_BUFS behavior if count == 0 Hans Verkuil
` (9 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
This also fixes incorrect error handling in create_bufs: the return code
of __vb2_queue_alloc is the number of allocated buffers, and not a
traditional error code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/videobuf2-core.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c
index 8486e33..bfcacaa 100644
--- a/drivers/media/video/videobuf2-core.c
+++ b/drivers/media/video/videobuf2-core.c
@@ -667,9 +667,9 @@ static int __create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create
/* Finally, allocate buffers and video memory */
ret = __vb2_queue_alloc(q, create->memory, num_buffers,
num_planes);
- if (ret < 0) {
- dprintk(1, "Memory allocation failed with error: %d\n", ret);
- return ret;
+ if (ret == 0) {
+ dprintk(1, "Memory allocation failed\n");
+ return -ENOMEM;
}
allocated_buffers = ret;
@@ -700,7 +700,7 @@ static int __create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create
if (ret < 0) {
__vb2_queue_free(q, allocated_buffers);
- return ret;
+ return -ENOMEM;
}
/*
@@ -724,6 +724,8 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
int ret = __verify_memory_type(q, create->memory, create->format.type);
create->index = q->num_buffers;
+ if (create->count == 0)
+ return ret != -EBUSY ? ret : 0;
return ret ? ret : __create_bufs(q, create);
}
EXPORT_SYMBOL_GPL(vb2_create_bufs);
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 25/34] Spec: document CREATE_BUFS behavior if count == 0.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (22 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 24/34] vb2-core: add support for count == 0 in create_bufs Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 26/34] v4l2-dev/ioctl.c: add vb2_queue support to video_device Hans Verkuil
` (8 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
Documentation/DocBook/media/v4l/vidioc-create-bufs.xml | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
index 7cf3116..db5ac51 100644
--- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
@@ -97,7 +97,13 @@ information.</para>
<row>
<entry>__u32</entry>
<entry><structfield>count</structfield></entry>
- <entry>The number of buffers requested or granted.</entry>
+ <entry>The number of buffers requested or granted. If count == 0, then
+ <constant>VIDIOC_CREATE_BUFS</constant> will set <structfield>index</structfield>
+ to the current number of created buffers, and it will check the validity of
+ <structfield>memory</structfield> and <structfield>format.type</structfield>.
+ If those are invalid -1 is returned and errno is set to &EINVAL;,
+ otherwise <constant>VIDIOC_CREATE_BUFS</constant> returns 0. It will
+ never set errno to &EBUSY; in this particular case.</entry>
</row>
<row>
<entry>__u32</entry>
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 26/34] v4l2-dev/ioctl.c: add vb2_queue support to video_device.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (23 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 25/34] Spec: document CREATE_BUFS behavior if count == 0 Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 27/34] videobuf2-core: add helper functions Hans Verkuil
` (7 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
This prepares struct video_device for easier integration with vb2.
It also introduces a new lock that protects the vb2_queue. It is up
to the driver to use it or not. And the driver can associate an owner
filehandle with the queue to check whether queuing requests are
permitted for the calling filehandle.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-dev.c | 16 +++++-----------
drivers/media/video/v4l2-ioctl.c | 31 +++++++++++++++++++++++--------
include/media/v4l2-dev.h | 3 +++
include/media/v4l2-ioctl.h | 5 +++++
include/media/videobuf2-core.h | 13 +++++++++++++
5 files changed, 49 insertions(+), 19 deletions(-)
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 5c0bb18..1b34360 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -348,20 +348,14 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
int ret = -ENODEV;
if (vdev->fops->unlocked_ioctl) {
- bool locked = false;
+ struct mutex *lock = v4l2_ioctl_get_lock(vdev, cmd);
- if (vdev->lock) {
- /* always lock unless the cmd is marked as "don't use lock" */
- locked = !v4l2_is_known_ioctl(cmd) ||
- !test_bit(_IOC_NR(cmd), vdev->disable_locking);
-
- if (locked && mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- }
+ if (lock && mutex_lock_interruptible(lock))
+ return -ERESTARTSYS;
if (video_is_registered(vdev))
ret = vdev->fops->unlocked_ioctl(filp, cmd, arg);
- if (locked)
- mutex_unlock(vdev->lock);
+ if (lock)
+ mutex_unlock(lock);
} else if (vdev->fops->ioctl) {
/* This code path is a replacement for the BKL. It is a major
* hack but it will have to do for those drivers that are not
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index efbb3db..95c9df0 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -27,6 +27,7 @@
#include <media/v4l2-event.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
+#include <media/videobuf2-core.h>
/* Zero out the end of the struct pointed to by p. Everything after, but
* not including, the specified field is cleared. */
@@ -1816,6 +1817,8 @@ struct v4l2_ioctl_info {
#define INFO_FL_STD (1 << 2)
/* This is ioctl has its own function */
#define INFO_FL_FUNC (1 << 3)
+/* Queuing ioctl */
+#define INFO_FL_QUEUE (1 << 4)
/* Zero struct from after the field to the end */
#define INFO_FL_CLEAR(v4l2_struct, field) \
((offsetof(struct v4l2_struct, field) + \
@@ -1845,15 +1848,15 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, INFO_FL_CLEAR(v4l2_format, type)),
IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
- IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO),
- IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_CLEAR(v4l2_buffer, length)),
+ IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
+ IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_OVERLAY, vidioc_overlay, v4l_print_u32, INFO_FL_PRIO),
- IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, 0),
- IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, 0),
- IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO),
- IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO),
+ IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
+ IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
+ IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
+ IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_G_STD, v4l_g_std, v4l_print_std, 0),
@@ -1917,8 +1920,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
- IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO),
- IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, 0),
+ IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
+ IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0),
IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, 0),
@@ -1932,6 +1935,18 @@ bool v4l2_is_known_ioctl(unsigned int cmd)
return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
}
+struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
+{
+ if (_IOC_NR(cmd) >= V4L2_IOCTLS)
+ return vdev->lock;
+ if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
+ return NULL;
+ if (vdev->queue && vdev->queue->lock &&
+ (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
+ return vdev->queue->lock;
+ return vdev->lock;
+}
+
/* Common ioctl debug function. This function can be used by
external ioctl messages as well as internal V4L ioctl */
void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index a056e6e..5c416cd 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -100,6 +100,9 @@ struct video_device
/* Control handler associated with this device node. May be NULL. */
struct v4l2_ctrl_handler *ctrl_handler;
+ /* vb2_queue associated with this device node. May be NULL. */
+ struct vb2_queue *queue;
+
/* Priority state. If NULL, then v4l2_dev->prio will be used. */
struct v4l2_prio_state *prio;
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index dfd984f..19e9352 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -304,6 +304,11 @@ extern int v4l2_video_std_construct(struct v4l2_standard *vs,
then do printk(KERN_DEBUG "%s: ", prefix) first. */
extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd);
+/* Internal use only: get the mutex (if any) that we need to lock for the
+ given command. */
+struct video_device;
+extern struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd);
+
/* names for fancy debug output */
extern const char *v4l2_field_names[];
extern const char *v4l2_type_names[];
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index a15d1f1..924e95e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -244,12 +244,23 @@ struct vb2_ops {
void (*buf_queue)(struct vb2_buffer *vb);
};
+struct v4l2_fh;
+
/**
* struct vb2_queue - a videobuf queue
*
* @type: queue type (see V4L2_BUF_TYPE_* in linux/videodev2.h
* @io_modes: supported io methods (see vb2_io_modes enum)
* @io_flags: additional io flags (see vb2_fileio_flags enum)
+ * @lock: pointer to a mutex that protects the vb2_queue struct. The
+ * driver can set this to a mutex to let the v4l2 core serialize
+ * the queuing ioctls. If the driver wants to handle locking
+ * itself, then this should be set to NULL. This lock is not used
+ * by the videobuf2 core API.
+ * @owner: The filehandle that 'owns' the buffers, i.e. the filehandle
+ * that called reqbufs, create_buffers or started fileio.
+ * This field is not used by the videobuf2 core API, but it allows
+ * drivers to easily associate an owner filehandle with the queue.
* @ops: driver-specific callbacks
* @mem_ops: memory allocator specific callbacks
* @drv_priv: driver private data
@@ -273,6 +284,8 @@ struct vb2_queue {
enum v4l2_buf_type type;
unsigned int io_modes;
unsigned int io_flags;
+ struct mutex *lock;
+ struct v4l2_fh *owner;
const struct vb2_ops *ops;
const struct vb2_mem_ops *mem_ops;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 27/34] videobuf2-core: add helper functions.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (24 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 26/34] v4l2-dev/ioctl.c: add vb2_queue support to video_device Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-27 9:42 ` Laurent Pinchart
2012-06-22 12:21 ` [RFCv2 PATCH 28/34] vivi: remove pointless g/s_std support Hans Verkuil
` (6 subsequent siblings)
32 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Add helper functions to make it easier to adapt drivers to vb2.
These helpers take care of core locking and check if the filehandle is the
owner of the queue.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/videobuf2-core.c | 227 ++++++++++++++++++++++++++++++++++
include/media/videobuf2-core.h | 32 +++++
2 files changed, 259 insertions(+)
diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c
index bfcacaa..d5ff802 100644
--- a/drivers/media/video/videobuf2-core.c
+++ b/drivers/media/video/videobuf2-core.c
@@ -2124,6 +2124,233 @@ size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
}
EXPORT_SYMBOL_GPL(vb2_write);
+
+/*
+ * The following functions are not part of the vb2 core API, but are helper
+ * functions that plug into struct v4l2_ioctl_ops and struct v4l2_file_operations.
+ * They contain boilerplate code that most if not all drivers have to do
+ * and so they simplify the driver code.
+ */
+
+/* The queue is busy if there is a owner and you are not that owner. */
+static inline bool vb2_queue_is_busy(struct video_device *vdev, struct file *file)
+{
+ return vdev->queue->owner && vdev->queue->owner != file->private_data;
+}
+
+int vb2_ioctl_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p)
+{
+ struct video_device *vdev = video_devdata(file);
+ int res = __verify_memory_type(vdev->queue, p->memory, p->type);
+
+ if (res)
+ return res;
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ res = __reqbufs(vdev->queue, p);
+ /* If count == 0, then the owner has released all buffers and he
+ is no longer owner of the queue. Otherwise we have a new owner. */
+ if (res == 0)
+ vdev->queue->owner = p->count ? file->private_data : NULL;
+ return res;
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_reqbufs);
+
+int vb2_ioctl_create_bufs(struct file *file, void *priv,
+ struct v4l2_create_buffers *p)
+{
+ struct video_device *vdev = video_devdata(file);
+ int res = __verify_memory_type(vdev->queue, p->memory, p->format.type);
+
+ p->index = vdev->queue->num_buffers;
+ /* If count == 0, then just check if memory and type are valid.
+ Any -EBUSY result from __verify_memory_type can be mapped to 0. */
+ if (p->count == 0)
+ return res != -EBUSY ? res : 0;
+ if (res)
+ return res;
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ res = __create_bufs(vdev->queue, p);
+ if (res == 0)
+ vdev->queue->owner = file->private_data;
+ return res;
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_create_bufs);
+
+int vb2_ioctl_prepare_buf(struct file *file, void *priv,
+ struct v4l2_buffer *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ return vb2_prepare_buf(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_prepare_buf);
+
+int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ /* No need to call vb2_queue_is_busy(), anyone can query buffers. */
+ return vb2_querybuf(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_querybuf);
+
+int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ return vb2_qbuf(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_qbuf);
+
+int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ return vb2_dqbuf(vdev->queue, p, file->f_flags & O_NONBLOCK);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_dqbuf);
+
+int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ return vb2_streamon(vdev->queue, i);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_streamon);
+
+int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev, file))
+ return -EBUSY;
+ return vb2_streamoff(vdev->queue, i);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_streamoff);
+
+int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ return vb2_mmap(vdev->queue, vma);
+}
+EXPORT_SYMBOL_GPL(vb2_fop_mmap);
+
+int vb2_fop_release(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (file->private_data == vdev->queue->owner) {
+ vb2_queue_release(vdev->queue);
+ vdev->queue->owner = NULL;
+ }
+ return v4l2_fh_release(file);
+}
+EXPORT_SYMBOL_GPL(vb2_fop_release);
+
+ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct mutex *lock = vdev->queue->lock ? vdev->queue->lock : vdev->lock;
+ bool must_lock = !test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags) && lock;
+ int err = -EBUSY;
+
+ if (must_lock && mutex_lock_interruptible(lock))
+ return -ERESTARTSYS;
+ if (vb2_queue_is_busy(vdev, file))
+ goto exit;
+ err = vb2_write(vdev->queue, buf, count, ppos,
+ file->f_flags & O_NONBLOCK);
+ if (err >= 0)
+ vdev->queue->owner = file->private_data;
+exit:
+ if (must_lock)
+ mutex_unlock(lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(vb2_fop_write);
+
+ssize_t vb2_fop_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct mutex *lock = vdev->queue->lock ? vdev->queue->lock : vdev->lock;
+ bool must_lock = !test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags) && vdev->lock;
+ int err = -EBUSY;
+
+ if (must_lock && mutex_lock_interruptible(lock))
+ return -ERESTARTSYS;
+ if (vb2_queue_is_busy(vdev, file))
+ goto exit;
+ err = vb2_read(vdev->queue, buf, count, ppos,
+ file->f_flags & O_NONBLOCK);
+ if (err >= 0)
+ vdev->queue->owner = file->private_data;
+exit:
+ if (must_lock)
+ mutex_unlock(lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(vb2_fop_read);
+
+unsigned int vb2_fop_poll(struct file *file, poll_table *wait)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct vb2_queue *q = vdev->queue;
+ struct mutex *lock = q->lock ? q->lock : vdev->lock;
+ unsigned long req_events = poll_requested_events(wait);
+ unsigned res;
+ void *fileio;
+ /* Yuck. We really need to get rid of this flag asap. If it is
+ set, then the core took the serialization lock before calling
+ poll(). This is being phased out, but for now we have to handle
+ this case. */
+ bool locked = test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags);
+ bool must_lock = false;
+
+ /* Try to be smart: only lock if polling might start fileio,
+ otherwise locking will only introduce unwanted delays. */
+ if (q->num_buffers == 0 && q->fileio == NULL) {
+ if (!V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_READ) &&
+ (req_events & (POLLIN | POLLRDNORM)))
+ must_lock = true;
+ else if (V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_WRITE) &&
+ (req_events & (POLLOUT | POLLWRNORM)))
+ must_lock = true;
+ }
+
+ /* If locking is needed, but this helper doesn't know how, then you
+ shouldn't be using this helper but you should write your own. */
+ WARN_ON(must_lock && !locked && !lock);
+
+ if (must_lock && !locked && lock && mutex_lock_interruptible(lock))
+ return POLLERR;
+
+ fileio = q->fileio;
+
+ res = vb2_poll(vdev->queue, file, wait);
+
+ /* If fileio was started, then we have a new queue owner. */
+ if (must_lock && !fileio && q->fileio)
+ q->owner = file->private_data;
+ if (must_lock && !locked && lock)
+ mutex_unlock(lock);
+ return res;
+}
+EXPORT_SYMBOL_GPL(vb2_fop_poll);
+
MODULE_DESCRIPTION("Driver helper framework for Video for Linux 2");
MODULE_AUTHOR("Pawel Osciak <pawel@osciak.com>, Marek Szyprowski");
MODULE_LICENSE("GPL");
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 924e95e..5ca3212 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -417,4 +417,36 @@ vb2_plane_size(struct vb2_buffer *vb, unsigned int plane_no)
return 0;
}
+/*
+ * The following functions are not part of the vb2 core API, but are simple
+ * helper functions that you can use in your struct v4l2_file_operations and
+ * struct v4l2_ioctl_ops. They will serialize if vb2_queue->lock or
+ * video_device->lock is set, and they will set and test vb2_queue->owner
+ * to check if the calling filehandle is permitted to do the queuing operation.
+ */
+
+/* struct v4l2_ioctl_ops helpers */
+
+int vb2_ioctl_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p);
+int vb2_ioctl_create_bufs(struct file *file, void *priv,
+ struct v4l2_create_buffers *p);
+int vb2_ioctl_prepare_buf(struct file *file, void *priv,
+ struct v4l2_buffer *p);
+int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p);
+int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p);
+int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p);
+int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i);
+int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i);
+
+/* struct v4l2_file_operations helpers */
+
+int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma);
+int vb2_fop_release(struct file *file);
+ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos);
+ssize_t vb2_fop_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos);
+unsigned int vb2_fop_poll(struct file *file, poll_table *wait);
+
#endif /* _MEDIA_VIDEOBUF2_CORE_H */
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 27/34] videobuf2-core: add helper functions.
2012-06-22 12:21 ` [RFCv2 PATCH 27/34] videobuf2-core: add helper functions Hans Verkuil
@ 2012-06-27 9:42 ` Laurent Pinchart
2012-06-27 10:31 ` Hans Verkuil
0 siblings, 1 reply; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 9:42 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
Hi Hans,
Thanks for the patch.
On Friday 22 June 2012 14:21:21 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Add helper functions to make it easier to adapt drivers to vb2.
>
> These helpers take care of core locking and check if the filehandle is the
> owner of the queue.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
> drivers/media/video/videobuf2-core.c | 227 +++++++++++++++++++++++++++++++
Was it not possible to move the functions to videobuf2-ioctl.c ?
> include/media/videobuf2-core.h | 32 +++++
> 2 files changed, 259 insertions(+)
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread
* Re: [RFCv2 PATCH 27/34] videobuf2-core: add helper functions.
2012-06-27 9:42 ` Laurent Pinchart
@ 2012-06-27 10:31 ` Hans Verkuil
0 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-27 10:31 UTC (permalink / raw)
To: Laurent Pinchart
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
On Wed 27 June 2012 11:42:31 Laurent Pinchart wrote:
> Hi Hans,
>
> Thanks for the patch.
>
> On Friday 22 June 2012 14:21:21 Hans Verkuil wrote:
> > From: Hans Verkuil <hans.verkuil@cisco.com>
> >
> > Add helper functions to make it easier to adapt drivers to vb2.
> >
> > These helpers take care of core locking and check if the filehandle is the
> > owner of the queue.
> >
> > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > ---
> > drivers/media/video/videobuf2-core.c | 227 +++++++++++++++++++++++++++++++
>
> Was it not possible to move the functions to videobuf2-ioctl.c ?
Yes, it was possible, but it would require making some functions extern instead
of static. In my opinion there is not enough advantage in moving these functions
to a separate file. I've added additional comments that should prevent any
confusion.
Regards,
Hans
^ permalink raw reply [flat|nested] 45+ messages in thread
* [RFCv2 PATCH 28/34] vivi: remove pointless g/s_std support
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (25 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 27/34] videobuf2-core: add helper functions Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 29/34] vivi: embed struct video_device instead of allocating it Hans Verkuil
` (5 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/vivi.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 08c1024..e00efcf 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -1072,11 +1072,6 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
return vb2_streamoff(&dev->vb_vidq, i);
}
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i)
-{
- return 0;
-}
-
/* only one input in this sample driver */
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
@@ -1085,7 +1080,6 @@ static int vidioc_enum_input(struct file *file, void *priv,
return -EINVAL;
inp->type = V4L2_INPUT_TYPE_CAMERA;
- inp->std = V4L2_STD_525_60;
sprintf(inp->name, "Camera %u", inp->index);
return 0;
}
@@ -1318,7 +1312,6 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_s_std = vidioc_s_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
@@ -1334,9 +1327,6 @@ static struct video_device vivi_template = {
.fops = &vivi_fops,
.ioctl_ops = &vivi_ioctl_ops,
.release = video_device_release,
-
- .tvnorms = V4L2_STD_525_60,
- .current_norm = V4L2_STD_NTSC_M,
};
/* -----------------------------------------------------------------
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 29/34] vivi: embed struct video_device instead of allocating it.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (26 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 28/34] vivi: remove pointless g/s_std support Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 30/34] vivi: use vb2 helper functions Hans Verkuil
` (4 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/vivi.c | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index e00efcf..1e4da5e 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -188,6 +188,7 @@ struct vivi_dev {
struct list_head vivi_devlist;
struct v4l2_device v4l2_dev;
struct v4l2_ctrl_handler ctrl_handler;
+ struct video_device vdev;
/* controls */
struct v4l2_ctrl *brightness;
@@ -213,9 +214,6 @@ struct vivi_dev {
spinlock_t slock;
struct mutex mutex;
- /* various device info */
- struct video_device *vfd;
-
struct vivi_dmaqueue vidq;
/* Several counters */
@@ -1326,7 +1324,7 @@ static struct video_device vivi_template = {
.name = "vivi",
.fops = &vivi_fops,
.ioctl_ops = &vivi_ioctl_ops,
- .release = video_device_release,
+ .release = video_device_release_empty,
};
/* -----------------------------------------------------------------
@@ -1344,8 +1342,8 @@ static int vivi_release(void)
dev = list_entry(list, struct vivi_dev, vivi_devlist);
v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
- video_device_node_name(dev->vfd));
- video_unregister_device(dev->vfd);
+ video_device_node_name(&dev->vdev));
+ video_unregister_device(&dev->vdev);
v4l2_device_unregister(&dev->v4l2_dev);
v4l2_ctrl_handler_free(&dev->ctrl_handler);
kfree(dev);
@@ -1430,11 +1428,7 @@ static int __init vivi_create_instance(int inst)
INIT_LIST_HEAD(&dev->vidq.active);
init_waitqueue_head(&dev->vidq.wq);
- ret = -ENOMEM;
- vfd = video_device_alloc();
- if (!vfd)
- goto unreg_dev;
-
+ vfd = &dev->vdev;
*vfd = vivi_template;
vfd->debug = debug;
vfd->v4l2_dev = &dev->v4l2_dev;
@@ -1445,12 +1439,11 @@ static int __init vivi_create_instance(int inst)
* all fops and v4l2 ioctls.
*/
vfd->lock = &dev->mutex;
+ video_set_drvdata(vfd, dev);
ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr);
if (ret < 0)
- goto rel_vdev;
-
- video_set_drvdata(vfd, dev);
+ goto unreg_dev;
/* Now that everything is fine, let's add it to device list */
list_add_tail(&dev->vivi_devlist, &vivi_devlist);
@@ -1458,13 +1451,10 @@ static int __init vivi_create_instance(int inst)
if (video_nr != -1)
video_nr++;
- dev->vfd = vfd;
v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n",
video_device_node_name(vfd));
return 0;
-rel_vdev:
- video_device_release(vfd);
unreg_dev:
v4l2_ctrl_handler_free(hdl);
v4l2_device_unregister(&dev->v4l2_dev);
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 30/34] vivi: use vb2 helper functions.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (27 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 29/34] vivi: embed struct video_device instead of allocating it Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 31/34] vivi: add create_bufs/preparebuf support Hans Verkuil
` (3 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/vivi.c | 150 ++++----------------------------------------
1 file changed, 12 insertions(+), 138 deletions(-)
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 1e4da5e..f6d7c6e 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -790,27 +790,6 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
return 0;
}
-static int buffer_init(struct vb2_buffer *vb)
-{
- struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
-
- BUG_ON(NULL == dev->fmt);
-
- /*
- * This callback is called once per buffer, after its allocation.
- *
- * Vivi does not allow changing format during streaming, but it is
- * possible to do so when streaming is paused (i.e. in streamoff state).
- * Buffers however are not freed when going into streamoff and so
- * buffer size verification has to be done in buffer_prepare, on each
- * qbuf.
- * It would be best to move verification code here to buf_init and
- * s_fmt though.
- */
-
- return 0;
-}
-
static int buffer_prepare(struct vb2_buffer *vb)
{
struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
@@ -848,20 +827,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
return 0;
}
-static int buffer_finish(struct vb2_buffer *vb)
-{
- struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
- dprintk(dev, 1, "%s\n", __func__);
- return 0;
-}
-
-static void buffer_cleanup(struct vb2_buffer *vb)
-{
- struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
- dprintk(dev, 1, "%s\n", __func__);
-
-}
-
static void buffer_queue(struct vb2_buffer *vb)
{
struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
@@ -907,10 +872,7 @@ static void vivi_unlock(struct vb2_queue *vq)
static struct vb2_ops vivi_video_qops = {
.queue_setup = queue_setup,
- .buf_init = buffer_init,
.buf_prepare = buffer_prepare,
- .buf_finish = buffer_finish,
- .buf_cleanup = buffer_cleanup,
.buf_queue = buffer_queue,
.start_streaming = start_streaming,
.stop_streaming = stop_streaming,
@@ -1019,7 +981,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
if (ret < 0)
return ret;
- if (vb2_is_streaming(q)) {
+ if (vb2_is_busy(q)) {
dprintk(dev, 1, "%s device busy\n", __func__);
return -EBUSY;
}
@@ -1033,43 +995,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
-static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *p)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_reqbufs(&dev->vb_vidq, p);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_querybuf(&dev->vb_vidq, p);
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_qbuf(&dev->vb_vidq, p);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_dqbuf(&dev->vb_vidq, p, file->f_flags & O_NONBLOCK);
-}
-
-static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_streamon(&dev->vb_vidq, i);
-}
-
-static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
- struct vivi_dev *dev = video_drvdata(file);
- return vb2_streamoff(&dev->vb_vidq, i);
-}
-
/* only one input in this sample driver */
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
@@ -1137,58 +1062,6 @@ static int vivi_s_ctrl(struct v4l2_ctrl *ctrl)
File operations for the device
------------------------------------------------------------------*/
-static ssize_t
-vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct vivi_dev *dev = video_drvdata(file);
- int err;
-
- dprintk(dev, 1, "read called\n");
- mutex_lock(&dev->mutex);
- err = vb2_read(&dev->vb_vidq, data, count, ppos,
- file->f_flags & O_NONBLOCK);
- mutex_unlock(&dev->mutex);
- return err;
-}
-
-static unsigned int
-vivi_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct vivi_dev *dev = video_drvdata(file);
- struct vb2_queue *q = &dev->vb_vidq;
-
- dprintk(dev, 1, "%s\n", __func__);
- return vb2_poll(q, file, wait);
-}
-
-static int vivi_close(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct vivi_dev *dev = video_drvdata(file);
-
- dprintk(dev, 1, "close called (dev=%s), file %p\n",
- video_device_node_name(vdev), file);
-
- if (v4l2_fh_is_singular_file(file))
- vb2_queue_release(&dev->vb_vidq);
- return v4l2_fh_release(file);
-}
-
-static int vivi_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct vivi_dev *dev = video_drvdata(file);
- int ret;
-
- dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
-
- ret = vb2_mmap(&dev->vb_vidq, vma);
- dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n",
- (unsigned long)vma->vm_start,
- (unsigned long)vma->vm_end - (unsigned long)vma->vm_start,
- ret);
- return ret;
-}
-
static const struct v4l2_ctrl_ops vivi_ctrl_ops = {
.g_volatile_ctrl = vivi_g_volatile_ctrl,
.s_ctrl = vivi_s_ctrl,
@@ -1293,11 +1166,11 @@ static const struct v4l2_ctrl_config vivi_ctrl_int_menu = {
static const struct v4l2_file_operations vivi_fops = {
.owner = THIS_MODULE,
.open = v4l2_fh_open,
- .release = vivi_close,
- .read = vivi_read,
- .poll = vivi_poll,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
- .mmap = vivi_mmap,
+ .mmap = vb2_fop_mmap,
};
static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
@@ -1306,15 +1179,15 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
@@ -1432,6 +1305,7 @@ static int __init vivi_create_instance(int inst)
*vfd = vivi_template;
vfd->debug = debug;
vfd->v4l2_dev = &dev->v4l2_dev;
+ vfd->queue = q;
set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
/*
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 31/34] vivi: add create_bufs/preparebuf support.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (28 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 30/34] vivi: use vb2 helper functions Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops Hans Verkuil
` (2 subsequent siblings)
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/vivi.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index f6d7c6e..1e8c4f3 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -767,7 +767,13 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
struct vivi_dev *dev = vb2_get_drv_priv(vq);
unsigned long size;
- size = dev->width * dev->height * dev->pixelsize;
+ if (fmt)
+ size = fmt->fmt.pix.sizeimage;
+ else
+ size = dev->width * dev->height * dev->pixelsize;
+
+ if (size == 0)
+ return -EINVAL;
if (0 == *nbuffers)
*nbuffers = 32;
@@ -1180,6 +1186,8 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (29 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 31/34] vivi: add create_bufs/preparebuf support Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-27 9:59 ` Laurent Pinchart
2012-06-22 12:21 ` [RFCv2 PATCH 33/34] pwc: use the new vb2 helpers Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 34/34] pwc: v4l2-compliance fixes Hans Verkuil
32 siblings, 1 reply; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/v4l2-dev.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 1b34360..b51bee9 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -305,6 +305,9 @@ static ssize_t v4l2_read(struct file *filp, char __user *buf,
ret = vdev->fops->read(filp, buf, sz, off);
if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
mutex_unlock(vdev->lock);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: read: %zd (%d)\n",
+ video_device_node_name(vdev), sz, ret);
return ret;
}
@@ -323,6 +326,9 @@ static ssize_t v4l2_write(struct file *filp, const char __user *buf,
ret = vdev->fops->write(filp, buf, sz, off);
if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
mutex_unlock(vdev->lock);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: write: %zd (%d)\n",
+ video_device_node_name(vdev), sz, ret);
return ret;
}
@@ -339,6 +345,9 @@ static unsigned int v4l2_poll(struct file *filp, struct poll_table_struct *poll)
ret = vdev->fops->poll(filp, poll);
if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
mutex_unlock(vdev->lock);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: poll: %08x\n",
+ video_device_node_name(vdev), ret);
return ret;
}
@@ -403,12 +412,17 @@ static unsigned long v4l2_get_unmapped_area(struct file *filp,
unsigned long flags)
{
struct video_device *vdev = video_devdata(filp);
+ int ret;
if (!vdev->fops->get_unmapped_area)
return -ENOSYS;
if (!video_is_registered(vdev))
return -ENODEV;
- return vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
+ ret = vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: get_unmapped_area (%d)\n",
+ video_device_node_name(vdev), ret);
+ return ret;
}
#endif
@@ -426,6 +440,9 @@ static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
ret = vdev->fops->mmap(filp, vm);
if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
mutex_unlock(vdev->lock);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: mmap (%d)\n",
+ video_device_node_name(vdev), ret);
return ret;
}
@@ -464,6 +481,9 @@ err:
/* decrease the refcount in case of an error */
if (ret)
video_put(vdev);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: open (%d)\n",
+ video_device_node_name(vdev), ret);
return ret;
}
@@ -483,6 +503,9 @@ static int v4l2_release(struct inode *inode, struct file *filp)
/* decrease the refcount unconditionally since the release()
return value is ignored. */
video_put(vdev);
+ if (vdev->debug)
+ printk(KERN_DEBUG "%s: release\n",
+ video_device_node_name(vdev));
return ret;
}
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops.
2012-06-22 12:21 ` [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops Hans Verkuil
@ 2012-06-27 9:59 ` Laurent Pinchart
2012-06-27 10:44 ` Hans Verkuil
0 siblings, 1 reply; 45+ messages in thread
From: Laurent Pinchart @ 2012-06-27 9:59 UTC (permalink / raw)
To: Hans Verkuil
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
Hi Hans,
Thanks for the patch.
On Friday 22 June 2012 14:21:26 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
> drivers/media/video/v4l2-dev.c | 25 ++++++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
> index 1b34360..b51bee9 100644
> --- a/drivers/media/video/v4l2-dev.c
> +++ b/drivers/media/video/v4l2-dev.c
> @@ -305,6 +305,9 @@ static ssize_t v4l2_read(struct file *filp, char __user
> *buf, ret = vdev->fops->read(filp, buf, sz, off);
> if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> mutex_unlock(vdev->lock);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: read: %zd (%d)\n",
> + video_device_node_name(vdev), sz, ret);
Would it make sense to introduce a v4l_dbg macro ? BTW, what was the outcome
of the pr_ vs. dev_ tests ?
> return ret;
> }
>
> @@ -323,6 +326,9 @@ static ssize_t v4l2_write(struct file *filp, const char
> __user *buf, ret = vdev->fops->write(filp, buf, sz, off);
> if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> mutex_unlock(vdev->lock);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: write: %zd (%d)\n",
> + video_device_node_name(vdev), sz, ret);
> return ret;
> }
>
> @@ -339,6 +345,9 @@ static unsigned int v4l2_poll(struct file *filp, struct
> poll_table_struct *poll) ret = vdev->fops->poll(filp, poll);
> if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> mutex_unlock(vdev->lock);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: poll: %08x\n",
> + video_device_node_name(vdev), ret);
> return ret;
> }
>
> @@ -403,12 +412,17 @@ static unsigned long v4l2_get_unmapped_area(struct
> file *filp, unsigned long flags)
> {
> struct video_device *vdev = video_devdata(filp);
> + int ret;
>
> if (!vdev->fops->get_unmapped_area)
> return -ENOSYS;
> if (!video_is_registered(vdev))
> return -ENODEV;
> - return vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
> + ret = vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: get_unmapped_area (%d)\n",
> + video_device_node_name(vdev), ret);
> + return ret;
> }
> #endif
>
> @@ -426,6 +440,9 @@ static int v4l2_mmap(struct file *filp, struct
> vm_area_struct *vm) ret = vdev->fops->mmap(filp, vm);
> if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> mutex_unlock(vdev->lock);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: mmap (%d)\n",
> + video_device_node_name(vdev), ret);
> return ret;
> }
>
> @@ -464,6 +481,9 @@ err:
> /* decrease the refcount in case of an error */
> if (ret)
> video_put(vdev);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: open (%d)\n",
> + video_device_node_name(vdev), ret);
> return ret;
> }
>
> @@ -483,6 +503,9 @@ static int v4l2_release(struct inode *inode, struct file
> *filp) /* decrease the refcount unconditionally since the release()
> return value is ignored. */
> video_put(vdev);
> + if (vdev->debug)
> + printk(KERN_DEBUG "%s: release\n",
> + video_device_node_name(vdev));
> return ret;
> }
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 45+ messages in thread* Re: [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops.
2012-06-27 9:59 ` Laurent Pinchart
@ 2012-06-27 10:44 ` Hans Verkuil
0 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-27 10:44 UTC (permalink / raw)
To: Laurent Pinchart
Cc: linux-media, Mauro Carvalho Chehab, Hans de Goede,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
On Wed 27 June 2012 11:59:06 Laurent Pinchart wrote:
> Hi Hans,
>
> Thanks for the patch.
>
> On Friday 22 June 2012 14:21:26 Hans Verkuil wrote:
> > From: Hans Verkuil <hans.verkuil@cisco.com>
> >
> > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > ---
> > drivers/media/video/v4l2-dev.c | 25 ++++++++++++++++++++++++-
> > 1 file changed, 24 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
> > index 1b34360..b51bee9 100644
> > --- a/drivers/media/video/v4l2-dev.c
> > +++ b/drivers/media/video/v4l2-dev.c
> > @@ -305,6 +305,9 @@ static ssize_t v4l2_read(struct file *filp, char __user
> > *buf, ret = vdev->fops->read(filp, buf, sz, off);
> > if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> > mutex_unlock(vdev->lock);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: read: %zd (%d)\n",
> > + video_device_node_name(vdev), sz, ret);
>
> Would it make sense to introduce a v4l_dbg macro ? BTW, what was the outcome
> of the pr_ vs. dev_ tests ?
When using e.g. dev_info you would get 'video4linux video0' as prefix, which is a
mouthful. So I decided against using it.
I've thought about adding a v4l_dbg macro, but I decided against it. This use of
KERN_DEBUG is quite unusual: usually any _dbg macro is either compiled away if
DEBUG isn't defined, uses dynamic printk, or uses a debug variable somewhere. In
this case you don't want any of those, you really want to print a message
unconditionally to the log at log level KERN_DEBUG.
Regards,
Hans
>
> > return ret;
> > }
> >
> > @@ -323,6 +326,9 @@ static ssize_t v4l2_write(struct file *filp, const char
> > __user *buf, ret = vdev->fops->write(filp, buf, sz, off);
> > if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> > mutex_unlock(vdev->lock);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: write: %zd (%d)\n",
> > + video_device_node_name(vdev), sz, ret);
> > return ret;
> > }
> >
> > @@ -339,6 +345,9 @@ static unsigned int v4l2_poll(struct file *filp, struct
> > poll_table_struct *poll) ret = vdev->fops->poll(filp, poll);
> > if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> > mutex_unlock(vdev->lock);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: poll: %08x\n",
> > + video_device_node_name(vdev), ret);
> > return ret;
> > }
> >
> > @@ -403,12 +412,17 @@ static unsigned long v4l2_get_unmapped_area(struct
> > file *filp, unsigned long flags)
> > {
> > struct video_device *vdev = video_devdata(filp);
> > + int ret;
> >
> > if (!vdev->fops->get_unmapped_area)
> > return -ENOSYS;
> > if (!video_is_registered(vdev))
> > return -ENODEV;
> > - return vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
> > + ret = vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: get_unmapped_area (%d)\n",
> > + video_device_node_name(vdev), ret);
> > + return ret;
> > }
> > #endif
> >
> > @@ -426,6 +440,9 @@ static int v4l2_mmap(struct file *filp, struct
> > vm_area_struct *vm) ret = vdev->fops->mmap(filp, vm);
> > if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
> > mutex_unlock(vdev->lock);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: mmap (%d)\n",
> > + video_device_node_name(vdev), ret);
> > return ret;
> > }
> >
> > @@ -464,6 +481,9 @@ err:
> > /* decrease the refcount in case of an error */
> > if (ret)
> > video_put(vdev);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: open (%d)\n",
> > + video_device_node_name(vdev), ret);
> > return ret;
> > }
> >
> > @@ -483,6 +503,9 @@ static int v4l2_release(struct inode *inode, struct file
> > *filp) /* decrease the refcount unconditionally since the release()
> > return value is ignored. */
> > video_put(vdev);
> > + if (vdev->debug)
> > + printk(KERN_DEBUG "%s: release\n",
> > + video_device_node_name(vdev));
> > return ret;
> > }
>
^ permalink raw reply [flat|nested] 45+ messages in thread
* [RFCv2 PATCH 33/34] pwc: use the new vb2 helpers.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (30 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 32/34] v4l2-dev.c: also add debug support for the fops Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
2012-06-22 12:21 ` [RFCv2 PATCH 34/34] pwc: v4l2-compliance fixes Hans Verkuil
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/pwc/pwc-if.c | 155 ++++---------------------------------
drivers/media/video/pwc/pwc-v4l.c | 140 +++------------------------------
drivers/media/video/pwc/pwc.h | 3 -
3 files changed, 24 insertions(+), 274 deletions(-)
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index ec4e2ef..b310c14 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -136,19 +136,13 @@ static int leds[2] = { 100, 0 };
/***/
-static int pwc_video_close(struct file *file);
-static ssize_t pwc_video_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos);
-static unsigned int pwc_video_poll(struct file *file, poll_table *wait);
-static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma);
-
static const struct v4l2_file_operations pwc_fops = {
.owner = THIS_MODULE,
.open = v4l2_fh_open,
- .release = pwc_video_close,
- .read = pwc_video_read,
- .poll = pwc_video_poll,
- .mmap = pwc_video_mmap,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
.unlocked_ioctl = video_ioctl2,
};
static struct video_device pwc_template = {
@@ -562,17 +556,6 @@ static const char *pwc_sensor_type_to_string(unsigned int sensor_type)
/***************************************************************************/
/* Video4Linux functions */
-int pwc_test_n_set_capt_file(struct pwc_device *pdev, struct file *file)
-{
- if (pdev->capt_file != NULL &&
- pdev->capt_file != file)
- return -EBUSY;
-
- pdev->capt_file = file;
-
- return 0;
-}
-
static void pwc_video_release(struct v4l2_device *v)
{
struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev);
@@ -583,113 +566,6 @@ static void pwc_video_release(struct v4l2_device *v)
kfree(pdev);
}
-static int pwc_video_close(struct file *file)
-{
- struct pwc_device *pdev = video_drvdata(file);
-
- /*
- * If we're still streaming vb2_queue_release will call stream_stop
- * so we must take both the v4l2_lock and the vb_queue_lock.
- */
- if (mutex_lock_interruptible(&pdev->v4l2_lock))
- return -ERESTARTSYS;
- if (mutex_lock_interruptible(&pdev->vb_queue_lock)) {
- mutex_unlock(&pdev->v4l2_lock);
- return -ERESTARTSYS;
- }
-
- if (pdev->capt_file == file) {
- vb2_queue_release(&pdev->vb_queue);
- pdev->capt_file = NULL;
- }
-
- mutex_unlock(&pdev->vb_queue_lock);
- mutex_unlock(&pdev->v4l2_lock);
-
- return v4l2_fh_release(file);
-}
-
-static ssize_t pwc_video_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int lock_v4l2 = 0;
- ssize_t ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret)
- goto out;
-
- /* stream_start will get called so we must take the v4l2_lock */
- if (pdev->vb_queue.fileio == NULL)
- lock_v4l2 = 1;
-
- /* Use try_lock, since we're taking the locks in the *wrong* order! */
- if (lock_v4l2 && !mutex_trylock(&pdev->v4l2_lock)) {
- ret = -ERESTARTSYS;
- goto out;
- }
- ret = vb2_read(&pdev->vb_queue, buf, count, ppos,
- file->f_flags & O_NONBLOCK);
- if (lock_v4l2)
- mutex_unlock(&pdev->v4l2_lock);
-out:
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static unsigned int pwc_video_poll(struct file *file, poll_table *wait)
-{
- struct pwc_device *pdev = video_drvdata(file);
- struct vb2_queue *q = &pdev->vb_queue;
- unsigned long req_events = poll_requested_events(wait);
- unsigned int ret = POLL_ERR;
- int lock_v4l2 = 0;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return POLL_ERR;
-
- /* Will this start fileio and thus call start_stream? */
- if ((req_events & (POLLIN | POLLRDNORM)) &&
- q->num_buffers == 0 && !q->streaming && q->fileio == NULL) {
- if (pwc_test_n_set_capt_file(pdev, file))
- goto out;
- lock_v4l2 = 1;
- }
-
- /* Use try_lock, since we're taking the locks in the *wrong* order! */
- if (lock_v4l2 && !mutex_trylock(&pdev->v4l2_lock))
- goto out;
- ret = vb2_poll(&pdev->vb_queue, file, wait);
- if (lock_v4l2)
- mutex_unlock(&pdev->v4l2_lock);
-
-out:
- if (!pdev->udev)
- ret |= POLLHUP;
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_mmap(&pdev->vb_queue, vma);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
/***************************************************************************/
/* Videobuf2 operations */
@@ -782,6 +658,8 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
if (!pdev->udev)
return -ENODEV;
+ if (mutex_lock_interruptible(&pdev->v4l2_lock))
+ return -ERESTARTSYS;
/* Turn on camera and set LEDS on */
pwc_camera_power(pdev, 1);
pwc_set_leds(pdev, leds[0], leds[1]);
@@ -794,6 +672,7 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
/* And cleanup any queued bufs!! */
pwc_cleanup_queued_bufs(pdev);
}
+ mutex_unlock(&pdev->v4l2_lock);
return r;
}
@@ -802,6 +681,8 @@ static int stop_streaming(struct vb2_queue *vq)
{
struct pwc_device *pdev = vb2_get_drv_priv(vq);
+ if (mutex_lock_interruptible(&pdev->v4l2_lock))
+ return -ERESTARTSYS;
if (pdev->udev) {
pwc_set_leds(pdev, 0, 0);
pwc_camera_power(pdev, 0);
@@ -809,6 +690,7 @@ static int stop_streaming(struct vb2_queue *vq)
}
pwc_cleanup_queued_bufs(pdev);
+ mutex_unlock(&pdev->v4l2_lock);
return 0;
}
@@ -1136,6 +1018,8 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
/* Init video_device structure */
memcpy(&pdev->vdev, &pwc_template, sizeof(pwc_template));
strcpy(pdev->vdev.name, name);
+ pdev->vdev.queue = &pdev->vb_queue;
+ pdev->vdev.queue->lock = &pdev->vb_queue_lock;
set_bit(V4L2_FL_USE_FH_PRIO, &pdev->vdev.flags);
video_set_drvdata(&pdev->vdev, pdev);
@@ -1190,15 +1074,6 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
pdev->vdev.v4l2_dev = &pdev->v4l2_dev;
pdev->vdev.lock = &pdev->v4l2_lock;
- /*
- * Don't take v4l2_lock for these ioctls. This improves latency if
- * v4l2_lock is taken for a long time, e.g. when changing a control
- * value, and a new frame is ready to be dequeued.
- */
- v4l2_disable_ioctl_locking(&pdev->vdev, VIDIOC_DQBUF);
- v4l2_disable_ioctl_locking(&pdev->vdev, VIDIOC_QBUF);
- v4l2_disable_ioctl_locking(&pdev->vdev, VIDIOC_QUERYBUF);
-
rc = video_register_device(&pdev->vdev, VFL_TYPE_GRABBER, -1);
if (rc < 0) {
PWC_ERROR("Failed to register as video device (%d).\n", rc);
@@ -1253,20 +1128,18 @@ static void usb_pwc_disconnect(struct usb_interface *intf)
struct v4l2_device *v = usb_get_intfdata(intf);
struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev);
- mutex_lock(&pdev->v4l2_lock);
-
mutex_lock(&pdev->vb_queue_lock);
+ mutex_lock(&pdev->v4l2_lock);
/* No need to keep the urbs around after disconnection */
if (pdev->vb_queue.streaming)
pwc_isoc_cleanup(pdev);
pdev->udev = NULL;
pwc_cleanup_queued_bufs(pdev);
- mutex_unlock(&pdev->vb_queue_lock);
v4l2_device_disconnect(&pdev->v4l2_dev);
video_unregister_device(&pdev->vdev);
-
mutex_unlock(&pdev->v4l2_lock);
+ mutex_unlock(pdev->vb_queue.lock);
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
if (pdev->button_dev)
diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index c691e29..114ae41 100644
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -468,17 +468,8 @@ static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
if (ret < 0)
return ret;
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret)
- goto leave;
-
- if (pdev->vb_queue.streaming) {
- ret = -EBUSY;
- goto leave;
- }
+ if (vb2_is_busy(&pdev->vb_queue))
+ return -EBUSY;
pixelformat = f->fmt.pix.pixelformat;
@@ -496,8 +487,6 @@ static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret);
pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt);
-leave:
- mutex_unlock(&pdev->vb_queue_lock);
return ret;
}
@@ -933,104 +922,6 @@ static int pwc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *
return pwc_vidioc_try_fmt(pdev, f);
}
-static int pwc_reqbufs(struct file *file, void *fh,
- struct v4l2_requestbuffers *rb)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_reqbufs(&pdev->vb_queue, rb);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_querybuf(&pdev->vb_queue, buf);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_qbuf(&pdev->vb_queue, buf);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_dqbuf(&pdev->vb_queue, buf,
- file->f_flags & O_NONBLOCK);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_streamon(&pdev->vb_queue, i);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
-static int pwc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
-{
- struct pwc_device *pdev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret == 0)
- ret = vb2_streamoff(&pdev->vb_queue, i);
-
- mutex_unlock(&pdev->vb_queue_lock);
- return ret;
-}
-
static int pwc_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
@@ -1119,25 +1010,14 @@ static int pwc_s_parm(struct file *file, void *fh,
fps = parm->parm.capture.timeperframe.denominator /
parm->parm.capture.timeperframe.numerator;
- if (mutex_lock_interruptible(&pdev->vb_queue_lock))
- return -ERESTARTSYS;
-
- ret = pwc_test_n_set_capt_file(pdev, file);
- if (ret)
- goto leave;
-
- if (pdev->vb_queue.streaming) {
- ret = -EBUSY;
- goto leave;
- }
+ if (vb2_is_busy(&pdev->vb_queue))
+ return -EBUSY;
ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt,
fps, &compression, 0);
pwc_g_parm(file, fh, parm);
-leave:
- mutex_unlock(&pdev->vb_queue_lock);
return ret;
}
@@ -1150,12 +1030,12 @@ const struct v4l2_ioctl_ops pwc_ioctl_ops = {
.vidioc_g_fmt_vid_cap = pwc_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = pwc_s_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = pwc_try_fmt_vid_cap,
- .vidioc_reqbufs = pwc_reqbufs,
- .vidioc_querybuf = pwc_querybuf,
- .vidioc_qbuf = pwc_qbuf,
- .vidioc_dqbuf = pwc_dqbuf,
- .vidioc_streamon = pwc_streamon,
- .vidioc_streamoff = pwc_streamoff,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_enum_framesizes = pwc_enum_framesizes,
.vidioc_enum_frameintervals = pwc_enum_frameintervals,
diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h
index d6b5b21..7a6a0d3 100644
--- a/drivers/media/video/pwc/pwc.h
+++ b/drivers/media/video/pwc/pwc.h
@@ -239,7 +239,6 @@ struct pwc_device
int features; /* feature bits */
/*** Video data ***/
- struct file *capt_file; /* file doing video capture */
int vendpoint; /* video isoc endpoint */
int vcinterface; /* video control interface */
int valternate; /* alternate interface needed */
@@ -355,8 +354,6 @@ struct pwc_device
extern int pwc_trace;
#endif
-int pwc_test_n_set_capt_file(struct pwc_device *pdev, struct file *file);
-
/** Functions in pwc-misc.c */
/* sizes in pixels */
extern const int pwc_image_sizes[PSZ_MAX][2];
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread* [RFCv2 PATCH 34/34] pwc: v4l2-compliance fixes.
2012-06-22 12:20 ` [RFCv2 PATCH 01/34] Regression fixes Hans Verkuil
` (31 preceding siblings ...)
2012-06-22 12:21 ` [RFCv2 PATCH 33/34] pwc: use the new vb2 helpers Hans Verkuil
@ 2012-06-22 12:21 ` Hans Verkuil
32 siblings, 0 replies; 45+ messages in thread
From: Hans Verkuil @ 2012-06-22 12:21 UTC (permalink / raw)
To: linux-media
Cc: Mauro Carvalho Chehab, Hans de Goede, Laurent Pinchart,
Guennadi Liakhovetski, Pawel Osciak, Tomasz Stanislawski,
Hans Verkuil
From: Hans Verkuil <hans.verkuil@cisco.com>
- add device_caps
- set colorspace
- s_parm should support a fps of 0 (== reset to nominal fps)
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/pwc/pwc-v4l.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index 114ae41..545e9bb 100644
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -405,6 +405,7 @@ static void pwc_vidioc_fill_fmt(struct v4l2_format *f,
f->fmt.pix.pixelformat = pixfmt;
f->fmt.pix.bytesperline = f->fmt.pix.width;
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.width * 3 / 2;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() "
"width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n",
f->fmt.pix.width,
@@ -497,10 +498,9 @@ static int pwc_querycap(struct file *file, void *fh, struct v4l2_capability *cap
strcpy(cap->driver, PWC_NAME);
strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card));
usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info));
- cap->capabilities =
- V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_STREAMING |
- V4L2_CAP_READWRITE;
+ cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
@@ -509,7 +509,8 @@ static int pwc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
if (i->index) /* Only one INPUT is supported */
return -EINVAL;
- strcpy(i->name, "usb");
+ strlcpy(i->name, "Camera", sizeof(i->name));
+ i->type = V4L2_INPUT_TYPE_CAMERA;
return 0;
}
@@ -1003,12 +1004,18 @@ static int pwc_s_parm(struct file *file, void *fh,
int compression = 0;
int ret, fps;
- if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- parm->parm.capture.timeperframe.numerator == 0)
+ if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
- fps = parm->parm.capture.timeperframe.denominator /
- parm->parm.capture.timeperframe.numerator;
+ /* If timeperframe == 0, then reset the framerate to the nominal value.
+ We pick a high framerate here, and let pwc_set_video_mode() figure
+ out the best match. */
+ if (parm->parm.capture.timeperframe.numerator == 0 ||
+ parm->parm.capture.timeperframe.denominator == 0)
+ fps = 30;
+ else
+ fps = parm->parm.capture.timeperframe.denominator /
+ parm->parm.capture.timeperframe.numerator;
if (vb2_is_busy(&pdev->vb_queue))
return -EBUSY;
--
1.7.10
^ permalink raw reply related [flat|nested] 45+ messages in thread