* [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control
@ 2013-03-12 15:09 Volokh Konstantin
2013-03-12 15:09 ` [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff Volokh Konstantin
2013-03-12 15:24 ` [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Hans Verkuil
0 siblings, 2 replies; 4+ messages in thread
From: Volokh Konstantin @ 2013-03-12 15:09 UTC (permalink / raw)
To: hverkuil, linux-media; +Cc: Volokh Konstantin
Signed-off-by: Volokh Konstantin <volokh84@gmail.com>
---
drivers/staging/media/go7007/go7007-priv.h | 1 +
drivers/staging/media/go7007/go7007-v4l2.c | 7 +++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/go7007/go7007-priv.h b/drivers/staging/media/go7007/go7007-priv.h
index 0914fa3..5f9b389 100644
--- a/drivers/staging/media/go7007/go7007-priv.h
+++ b/drivers/staging/media/go7007/go7007-priv.h
@@ -166,6 +166,7 @@ struct go7007 {
struct v4l2_ctrl *mpeg_video_gop_closure;
struct v4l2_ctrl *mpeg_video_bitrate;
struct v4l2_ctrl *mpeg_video_aspect_ratio;
+ struct v4l2_ctrl *mpeg_video_b_frames;
enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
spinlock_t spinlock;
struct mutex hw_lock;
diff --git a/drivers/staging/media/go7007/go7007-v4l2.c b/drivers/staging/media/go7007/go7007-v4l2.c
index 3634580..06fc930 100644
--- a/drivers/staging/media/go7007/go7007-v4l2.c
+++ b/drivers/staging/media/go7007/go7007-v4l2.c
@@ -170,7 +170,7 @@ static void set_formatting(struct go7007 *go)
go->gop_size == 15 &&
go->closed_gop;
go->repeat_seqhead = go->dvd_mode;
- go->ipb = 0;
+ go->ipb = v4l2_ctrl_g_ctrl(go->mpeg_video_b_frames);
switch (v4l2_ctrl_g_ctrl(go->mpeg_video_aspect_ratio)) {
default:
@@ -935,7 +935,7 @@ int go7007_v4l2_ctrl_init(struct go7007 *go)
struct v4l2_ctrl_handler *hdl = &go->hdl;
struct v4l2_ctrl *ctrl;
- v4l2_ctrl_handler_init(hdl, 12);
+ v4l2_ctrl_handler_init(hdl, 13);
go->mpeg_video_gop_size = v4l2_ctrl_new_std(hdl, NULL,
V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, 34, 1, 15);
go->mpeg_video_gop_closure = v4l2_ctrl_new_std(hdl, NULL,
@@ -943,6 +943,9 @@ int go7007_v4l2_ctrl_init(struct go7007 *go)
go->mpeg_video_bitrate = v4l2_ctrl_new_std(hdl, NULL,
V4L2_CID_MPEG_VIDEO_BITRATE,
64000, 10000000, 1, 9800000);
+ go->mpeg_video_b_frames = v4l2_ctrl_new_std(hdl, NULL,
+ V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 2, 1, 0);
+
go->mpeg_video_aspect_ratio = v4l2_ctrl_new_std_menu(hdl, NULL,
V4L2_CID_MPEG_VIDEO_ASPECT,
V4L2_MPEG_VIDEO_ASPECT_16x9, 0,
--
1.7.7.6
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff
2013-03-12 15:09 [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Volokh Konstantin
@ 2013-03-12 15:09 ` Volokh Konstantin
2013-03-12 15:26 ` Hans Verkuil
2013-03-12 15:24 ` [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Hans Verkuil
1 sibling, 1 reply; 4+ messages in thread
From: Volokh Konstantin @ 2013-03-12 15:09 UTC (permalink / raw)
To: hverkuil, linux-media; +Cc: Volokh Konstantin
If firmware wasn`t load, rmmod fail with oops:
usbcore: deregistering interface driver go7007
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
PGD 13143b067 PUD 132a52067 PMD 0
Oops: 0002 [#1] SMP
Modules linked in: go7007_usb(C-) go7007(C) videobuf2_core bttv videobuf_dma_sg videobuf_core btcx_risc rc_core v4l2_common videodev videobuf2_vmalloc videobuf2_memops tveeprom
CPU 0
Pid: 3305, comm: rmmod Tainted: G C 3.9.0-rc1+ #4 To Be Filled By O.E.M. To Be Filled By O.E.M./H55MX-S Series
RIP: 0010:[<ffffffff81797d02>] [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
RSP: 0018:ffff88013220bd18 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff880132264c80 RCX: 00000000ffffffff
RDX: ffff88013220bd20 RSI: ffff880130d3ecc0 RDI: ffff880132264c84
RBP: ffff88013220bd68 R08: 0000000000000000 R09: ffffea0004c5c940
R10: ffffffff811a08d3 R11: 0000000000027854 R12: ffff880132264c84
R13: ffff8801325ec410 R14: 00000000ffffffff R15: ffff880132264c88
Mar 12 01:25:57 Video kernel: [ 128.939419] FS: 00007fb32649d700(0000) GS:ffff880137c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000130f1d000 CR4: 00000000000007f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 3305, threadinfo ffff88013220a000, task ffff8801325ec410)
Stack:
ffff88013220bd48 ffff880132264c88 0000000000000000 ffff880131abf800
ffff880130d3ecc0 ffff880132264c80 ffff880132264c80 ffff880132264478
ffff880132264000 0000000000000000 ffff88013220bd88 ffffffff81797c05
Call Trace:
[<ffffffff81797c05>] mutex_lock+0x25/0x40
[<ffffffffa0090051>] go7007_usb_disconnect+0x41/0xb0 [go7007_usb]
[<ffffffff814b105b>] usb_unbind_interface+0x5b/0x130
[<ffffffff813f0a71>] __device_release_driver+0x61/0xd0
[<ffffffff813f1340>] driver_detach+0xb0/0xc0
[<ffffffff813f0859>] bus_remove_driver+0x79/0xd0
[<ffffffff813f19da>] driver_unregister+0x5a/0x90
[<ffffffff814b0d64>] usb_deregister+0x64/0xd0
[<ffffffffa00914dc>] go7007_usb_driver_exit+0x10/0x12 [go7007_usb]
[<ffffffff8109370c>] sys_delete_module+0x15c/0x240
[<ffffffff817a1d12>] system_call_fastpath+0x16/0x1b
Code: 00 4c 8d 63 04 4c 8d 7b 08 41 be ff ff ff ff 4c 89 e7 e8 92 26 00 00 48 8b 43 10 48 8d 55 b8 4c 89 7d b8 48 89 53 10 48 89 45 c0 <48> 89 10 44 89 f0 4c 89 6d c8 87 03 83 f8 01 75 1f eb 27 0f 1f
RIP [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
RSP <ffff88013220bd18>
CR2: 0000000000000000
Signed-off-by: Volokh Konstantin <volokh84@gmail.com>
---
drivers/staging/media/go7007/go7007-usb.c | 25 +++++++++++++------------
1 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index bd23d7d..48ad01f 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1316,18 +1316,19 @@ static void go7007_usb_disconnect(struct usb_interface *intf)
{
struct go7007 *go = to_go7007(usb_get_intfdata(intf));
- mutex_lock(&go->queue_lock);
- mutex_lock(&go->serialize_lock);
-
- if (go->audio_enabled)
- go7007_snd_remove(go);
-
- go->status = STATUS_SHUTDOWN;
- v4l2_device_disconnect(&go->v4l2_dev);
- video_unregister_device(&go->vdev);
- mutex_unlock(&go->serialize_lock);
- mutex_unlock(&go->queue_lock);
-
+ if (go->status == STATUS_ONLINE) {
+ mutex_lock(&go->queue_lock);
+ mutex_lock(&go->serialize_lock);
+
+ if (go->audio_enabled)
+ go7007_snd_remove(go);
+
+ go->status = STATUS_SHUTDOWN;
+ v4l2_device_disconnect(&go->v4l2_dev);
+ video_unregister_device(&go->vdev);
+ mutex_unlock(&go->serialize_lock);
+ mutex_unlock(&go->queue_lock);
+ }
v4l2_device_put(&go->v4l2_dev);
}
--
1.7.7.6
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff
2013-03-12 15:09 ` [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff Volokh Konstantin
@ 2013-03-12 15:26 ` Hans Verkuil
0 siblings, 0 replies; 4+ messages in thread
From: Hans Verkuil @ 2013-03-12 15:26 UTC (permalink / raw)
To: Volokh Konstantin; +Cc: linux-media
On Tue 12 March 2013 16:09:30 Volokh Konstantin wrote:
> If firmware wasn`t load, rmmod fail with oops:
>
> usbcore: deregistering interface driver go7007
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
> PGD 13143b067 PUD 132a52067 PMD 0
> Oops: 0002 [#1] SMP
> Modules linked in: go7007_usb(C-) go7007(C) videobuf2_core bttv videobuf_dma_sg videobuf_core btcx_risc rc_core v4l2_common videodev videobuf2_vmalloc videobuf2_memops tveeprom
> CPU 0
> Pid: 3305, comm: rmmod Tainted: G C 3.9.0-rc1+ #4 To Be Filled By O.E.M. To Be Filled By O.E.M./H55MX-S Series
> RIP: 0010:[<ffffffff81797d02>] [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
> RSP: 0018:ffff88013220bd18 EFLAGS: 00010246
> RAX: 0000000000000000 RBX: ffff880132264c80 RCX: 00000000ffffffff
> RDX: ffff88013220bd20 RSI: ffff880130d3ecc0 RDI: ffff880132264c84
> RBP: ffff88013220bd68 R08: 0000000000000000 R09: ffffea0004c5c940
> R10: ffffffff811a08d3 R11: 0000000000027854 R12: ffff880132264c84
> R13: ffff8801325ec410 R14: 00000000ffffffff R15: ffff880132264c88
> Mar 12 01:25:57 Video kernel: [ 128.939419] FS: 00007fb32649d700(0000) GS:ffff880137c00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 0000000000000000 CR3: 0000000130f1d000 CR4: 00000000000007f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process rmmod (pid: 3305, threadinfo ffff88013220a000, task ffff8801325ec410)
> Stack:
> ffff88013220bd48 ffff880132264c88 0000000000000000 ffff880131abf800
> ffff880130d3ecc0 ffff880132264c80 ffff880132264c80 ffff880132264478
> ffff880132264000 0000000000000000 ffff88013220bd88 ffffffff81797c05
> Call Trace:
> [<ffffffff81797c05>] mutex_lock+0x25/0x40
> [<ffffffffa0090051>] go7007_usb_disconnect+0x41/0xb0 [go7007_usb]
> [<ffffffff814b105b>] usb_unbind_interface+0x5b/0x130
> [<ffffffff813f0a71>] __device_release_driver+0x61/0xd0
> [<ffffffff813f1340>] driver_detach+0xb0/0xc0
> [<ffffffff813f0859>] bus_remove_driver+0x79/0xd0
> [<ffffffff813f19da>] driver_unregister+0x5a/0x90
> [<ffffffff814b0d64>] usb_deregister+0x64/0xd0
> [<ffffffffa00914dc>] go7007_usb_driver_exit+0x10/0x12 [go7007_usb]
> [<ffffffff8109370c>] sys_delete_module+0x15c/0x240
> [<ffffffff817a1d12>] system_call_fastpath+0x16/0x1b
> Code: 00 4c 8d 63 04 4c 8d 7b 08 41 be ff ff ff ff 4c 89 e7 e8 92 26 00 00 48 8b 43 10 48 8d 55 b8 4c 89 7d b8 48 89 53 10 48 89 45 c0 <48> 89 10 44 89 f0 4c 89 6d c8 87 03 83 f8 01 75 1f eb 27 0f 1f
> RIP [<ffffffff81797d02>] __mutex_lock_slowpath+0xa2/0x140
> RSP <ffff88013220bd18>
> CR2: 0000000000000000
>
It's clearly a bug, but I'm not sure this is the right approach. If the firmware
can't be loaded, then the probe() should just exit with an error.
I also need to check the use of the 'status' field, I never trust that sort of
thing.
Regards,
Hans
> Signed-off-by: Volokh Konstantin <volokh84@gmail.com>
> ---
> drivers/staging/media/go7007/go7007-usb.c | 25 +++++++++++++------------
> 1 files changed, 13 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
> index bd23d7d..48ad01f 100644
> --- a/drivers/staging/media/go7007/go7007-usb.c
> +++ b/drivers/staging/media/go7007/go7007-usb.c
> @@ -1316,18 +1316,19 @@ static void go7007_usb_disconnect(struct usb_interface *intf)
> {
> struct go7007 *go = to_go7007(usb_get_intfdata(intf));
>
> - mutex_lock(&go->queue_lock);
> - mutex_lock(&go->serialize_lock);
> -
> - if (go->audio_enabled)
> - go7007_snd_remove(go);
> -
> - go->status = STATUS_SHUTDOWN;
> - v4l2_device_disconnect(&go->v4l2_dev);
> - video_unregister_device(&go->vdev);
> - mutex_unlock(&go->serialize_lock);
> - mutex_unlock(&go->queue_lock);
> -
> + if (go->status == STATUS_ONLINE) {
> + mutex_lock(&go->queue_lock);
> + mutex_lock(&go->serialize_lock);
> +
> + if (go->audio_enabled)
> + go7007_snd_remove(go);
> +
> + go->status = STATUS_SHUTDOWN;
> + v4l2_device_disconnect(&go->v4l2_dev);
> + video_unregister_device(&go->vdev);
> + mutex_unlock(&go->serialize_lock);
> + mutex_unlock(&go->queue_lock);
> + }
> v4l2_device_put(&go->v4l2_dev);
> }
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control
2013-03-12 15:09 [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Volokh Konstantin
2013-03-12 15:09 ` [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff Volokh Konstantin
@ 2013-03-12 15:24 ` Hans Verkuil
1 sibling, 0 replies; 4+ messages in thread
From: Hans Verkuil @ 2013-03-12 15:24 UTC (permalink / raw)
To: Volokh Konstantin; +Cc: linux-media
On Tue 12 March 2013 16:09:29 Volokh Konstantin wrote:
> Signed-off-by: Volokh Konstantin <volokh84@gmail.com>
Just wondering: did you test this?
If you get the latest v4l-utils code and run:
v4l2-ctl --stream-mmap=3
(first set the format to MPEG2) you should see B frames appearing.
> ---
> drivers/staging/media/go7007/go7007-priv.h | 1 +
> drivers/staging/media/go7007/go7007-v4l2.c | 7 +++++--
> 2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/go7007/go7007-priv.h b/drivers/staging/media/go7007/go7007-priv.h
> index 0914fa3..5f9b389 100644
> --- a/drivers/staging/media/go7007/go7007-priv.h
> +++ b/drivers/staging/media/go7007/go7007-priv.h
> @@ -166,6 +166,7 @@ struct go7007 {
> struct v4l2_ctrl *mpeg_video_gop_closure;
> struct v4l2_ctrl *mpeg_video_bitrate;
> struct v4l2_ctrl *mpeg_video_aspect_ratio;
> + struct v4l2_ctrl *mpeg_video_b_frames;
> enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
> spinlock_t spinlock;
> struct mutex hw_lock;
> diff --git a/drivers/staging/media/go7007/go7007-v4l2.c b/drivers/staging/media/go7007/go7007-v4l2.c
> index 3634580..06fc930 100644
> --- a/drivers/staging/media/go7007/go7007-v4l2.c
> +++ b/drivers/staging/media/go7007/go7007-v4l2.c
> @@ -170,7 +170,7 @@ static void set_formatting(struct go7007 *go)
> go->gop_size == 15 &&
> go->closed_gop;
What should the ipb mode be for 'dvd_mode'? I think 0, but I'm not sure.
> go->repeat_seqhead = go->dvd_mode;
> - go->ipb = 0;
> + go->ipb = v4l2_ctrl_g_ctrl(go->mpeg_video_b_frames);
>
> switch (v4l2_ctrl_g_ctrl(go->mpeg_video_aspect_ratio)) {
> default:
> @@ -935,7 +935,7 @@ int go7007_v4l2_ctrl_init(struct go7007 *go)
> struct v4l2_ctrl_handler *hdl = &go->hdl;
> struct v4l2_ctrl *ctrl;
>
> - v4l2_ctrl_handler_init(hdl, 12);
> + v4l2_ctrl_handler_init(hdl, 13);
> go->mpeg_video_gop_size = v4l2_ctrl_new_std(hdl, NULL,
> V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, 34, 1, 15);
> go->mpeg_video_gop_closure = v4l2_ctrl_new_std(hdl, NULL,
> @@ -943,6 +943,9 @@ int go7007_v4l2_ctrl_init(struct go7007 *go)
> go->mpeg_video_bitrate = v4l2_ctrl_new_std(hdl, NULL,
> V4L2_CID_MPEG_VIDEO_BITRATE,
> 64000, 10000000, 1, 9800000);
> + go->mpeg_video_b_frames = v4l2_ctrl_new_std(hdl, NULL,
> + V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 2, 1, 0);
Set the step value to '2'. As I understand it it is either 0 or 2 and value 1
isn't supported.
> +
> go->mpeg_video_aspect_ratio = v4l2_ctrl_new_std_menu(hdl, NULL,
> V4L2_CID_MPEG_VIDEO_ASPECT,
> V4L2_MPEG_VIDEO_ASPECT_16x9, 0,
>
Regards,
Hans
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-03-12 15:36 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-03-12 15:09 [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Volokh Konstantin
2013-03-12 15:09 ` [PATCH 2/2] hverkuil/go7007: staging: media: go7007: rmmod firmware protection stuff Volokh Konstantin
2013-03-12 15:26 ` Hans Verkuil
2013-03-12 15:24 ` [PATCH 1/2] hverkuil/go7007: staging: media: go7007: Restore b_frame control Hans Verkuil
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