[PATCH v2 47/66] media: sun6i-csi: Introduce format match structure, list and helper

Paul Kocialkowski
2022-02-05T18:56:01Z

Introduce a list of mbus/pixel format combinations that need an exact
match between the two sides. This is the case when using raw input
configuration. The list will be used to replace the
sun6i_csi_is_format_supported combinatory helper.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
.../sunxi/sun6i-csi/sun6i_csi_capture.c | 117 ++++++++++++++++++
.../sunxi/sun6i-csi/sun6i_csi_capture.h | 5 +
2 files changed, 122 insertions(+)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
index 1a5797454beb..91f2295cbdc6 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
@@ -227,6 +227,123 @@ struct sun6i_csi_capture_format *sun6i_csi_capture_format_find(u32 pixelformat)
return NULL;
}

+/* RAW formats need an exact match between pixel and mbus formats. */
+static const
+struct sun6i_csi_capture_format_match sun6i_csi_capture_format_matches[] = {
+ /* YUV420 */
+ {
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_YVYU,
+ .mbus_code = MEDIA_BUS_FMT_YVYU8_2X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_YVYU,
+ .mbus_code = MEDIA_BUS_FMT_YVYU8_1X16,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_VYUY,
+ .mbus_code = MEDIA_BUS_FMT_VYUY8_2X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_VYUY,
+ .mbus_code = MEDIA_BUS_FMT_VYUY8_1X16,
+ },
+ /* RGB */
+ {
+ .pixelformat = V4L2_PIX_FMT_RGB565,
+ .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_RGB565X,
+ .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_BE,
+ },
+ /* Bayer */
+ {
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGBRG8,
+ .mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGRBG8,
+ .mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SRGGB8,
+ .mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SBGGR10,
+ .mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGBRG10,
+ .mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGRBG10,
+ .mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SRGGB10,
+ .mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SBGGR12,
+ .mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGBRG12,
+ .mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SGRBG12,
+ .mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+ },
+ {
+ .pixelformat = V4L2_PIX_FMT_SRGGB12,
+ .mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+ },
+ /* Compressed */
+ {
+ .pixelformat = V4L2_PIX_FMT_JPEG,
+ .mbus_code = MEDIA_BUS_FMT_JPEG_1X8,
+ },
+};
+
+static bool sun6i_csi_capture_format_match(u32 pixelformat, u32 mbus_code)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(sun6i_csi_capture_format_matches); i++) {
+ const struct sun6i_csi_capture_format_match *match =
+ &sun6i_csi_capture_format_matches[i];
+
+ if (match->pixelformat == pixelformat &&
+ match->mbus_code == mbus_code)
+ return true;
+ }
+
+ return false;
+}
+
/* Capture */

static void sun6i_csi_capture_irq_enable(struct sun6i_csi_device *csi_dev)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
index 4b1ff19edc2f..2605b16f091c 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
@@ -27,6 +27,11 @@ struct sun6i_csi_capture_format {
u32 hsize_len_factor;
};

+struct sun6i_csi_capture_format_match {
+ u32 pixelformat;
+ u32 mbus_code;
+};
+
#undef current
struct sun6i_csi_capture_state {
struct list_head queue;
--
2.34.1