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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2009-12-11 11:46:49 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-16 09:27:29 -0200
commit760697beca338599a65484389c7abbe54aedb664 (patch)
tree515735429d2240629a6f048ab1a7fefaf5299e46 /drivers/media/video/mt9m001.c
parent9a74251d8bee7a25fee89a0be3ccea73e01c1a05 (diff)
V4L/DVB (13659): soc-camera: convert to the new mediabus API
Convert soc-camera core and all soc-camera drivers to the new mediabus API. This also takes soc-camera client drivers one step closer to also be usable with generic v4l2-subdev host drivers. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/mt9m001.c')
-rw-r--r--drivers/media/video/mt9m001.c141
1 files changed, 85 insertions, 56 deletions
diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index cc9066000c2d..b62c0bd3f8ea 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -48,41 +48,46 @@
#define MT9M001_COLUMN_SKIP 20
#define MT9M001_ROW_SKIP 12
-static const struct soc_camera_data_format mt9m001_colour_formats[] = {
+/* MT9M001 has only one fixed colorspace per pixelcode */
+struct mt9m001_datafmt {
+ enum v4l2_mbus_pixelcode code;
+ enum v4l2_colorspace colorspace;
+};
+
+/* Find a data format by a pixel code in an array */
+static const struct mt9m001_datafmt *mt9m001_find_datafmt(
+ enum v4l2_mbus_pixelcode code, const struct mt9m001_datafmt *fmt,
+ int n)
+{
+ int i;
+ for (i = 0; i < n; i++)
+ if (fmt[i].code == code)
+ return fmt + i;
+
+ return NULL;
+}
+
+static const struct mt9m001_datafmt mt9m001_colour_fmts[] = {
/*
* Order important: first natively supported,
* second supported with a GPIO extender
*/
- {
- .name = "Bayer (sRGB) 10 bit",
- .depth = 10,
- .fourcc = V4L2_PIX_FMT_SBGGR16,
- .colorspace = V4L2_COLORSPACE_SRGB,
- }, {
- .name = "Bayer (sRGB) 8 bit",
- .depth = 8,
- .fourcc = V4L2_PIX_FMT_SBGGR8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- }
+ {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB},
+ {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
};
-static const struct soc_camera_data_format mt9m001_monochrome_formats[] = {
+static const struct mt9m001_datafmt mt9m001_monochrome_fmts[] = {
/* Order important - see above */
- {
- .name = "Monochrome 10 bit",
- .depth = 10,
- .fourcc = V4L2_PIX_FMT_Y16,
- }, {
- .name = "Monochrome 8 bit",
- .depth = 8,
- .fourcc = V4L2_PIX_FMT_GREY,
- },
+ {V4L2_MBUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG},
+ {V4L2_MBUS_FMT_GREY8_1X8, V4L2_COLORSPACE_JPEG},
};
struct mt9m001 {
struct v4l2_subdev subdev;
struct v4l2_rect rect; /* Sensor window */
- __u32 fourcc;
+ const struct mt9m001_datafmt *fmt;
+ const struct mt9m001_datafmt *fmts;
+ int num_fmts;
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
unsigned int gain;
unsigned int exposure;
@@ -209,8 +214,7 @@ static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
const u16 hblank = 9, vblank = 25;
unsigned int total_h;
- if (mt9m001->fourcc == V4L2_PIX_FMT_SBGGR8 ||
- mt9m001->fourcc == V4L2_PIX_FMT_SBGGR16)
+ if (mt9m001->fmts == mt9m001_colour_fmts)
/*
* Bayer format - even number of rows for simplicity,
* but let the user play with the top row.
@@ -290,32 +294,32 @@ static int mt9m001_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
return 0;
}
-static int mt9m001_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int mt9m001_g_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct v4l2_pix_format *pix = &f->fmt.pix;
- pix->width = mt9m001->rect.width;
- pix->height = mt9m001->rect.height;
- pix->pixelformat = mt9m001->fourcc;
- pix->field = V4L2_FIELD_NONE;
- pix->colorspace = V4L2_COLORSPACE_SRGB;
+ mf->width = mt9m001->rect.width;
+ mf->height = mt9m001->rect.height;
+ mf->code = mt9m001->fmt->code;
+ mf->colorspace = mt9m001->fmt->colorspace;
+ mf->field = V4L2_FIELD_NONE;
return 0;
}
-static int mt9m001_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int mt9m001_s_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_crop a = {
.c = {
.left = mt9m001->rect.left,
.top = mt9m001->rect.top,
- .width = pix->width,
- .height = pix->height,
+ .width = mf->width,
+ .height = mf->height,
},
};
int ret;
@@ -323,28 +327,39 @@ static int mt9m001_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
/* No support for scaling so far, just crop. TODO: use skipping */
ret = mt9m001_s_crop(sd, &a);
if (!ret) {
- pix->width = mt9m001->rect.width;
- pix->height = mt9m001->rect.height;
- mt9m001->fourcc = pix->pixelformat;
+ mf->width = mt9m001->rect.width;
+ mf->height = mt9m001->rect.height;
+ mt9m001->fmt = mt9m001_find_datafmt(mf->code,
+ mt9m001->fmts, mt9m001->num_fmts);
+ mf->colorspace = mt9m001->fmt->colorspace;
}
return ret;
}
-static int mt9m001_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int mt9m001_try_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct v4l2_pix_format *pix = &f->fmt.pix;
+ const struct mt9m001_datafmt *fmt;
- v4l_bound_align_image(&pix->width, MT9M001_MIN_WIDTH,
+ v4l_bound_align_image(&mf->width, MT9M001_MIN_WIDTH,
MT9M001_MAX_WIDTH, 1,
- &pix->height, MT9M001_MIN_HEIGHT + mt9m001->y_skip_top,
+ &mf->height, MT9M001_MIN_HEIGHT + mt9m001->y_skip_top,
MT9M001_MAX_HEIGHT + mt9m001->y_skip_top, 0, 0);
- if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8 ||
- pix->pixelformat == V4L2_PIX_FMT_SBGGR16)
- pix->height = ALIGN(pix->height - 1, 2);
+ if (mt9m001->fmts == mt9m001_colour_fmts)
+ mf->height = ALIGN(mf->height - 1, 2);
+
+ fmt = mt9m001_find_datafmt(mf->code, mt9m001->fmts,
+ mt9m001->num_fmts);
+ if (!fmt) {
+ fmt = mt9m001->fmt;
+ mf->code = fmt->code;
+ }
+
+ mf->colorspace = fmt->colorspace;
return 0;
}
@@ -608,11 +623,11 @@ static int mt9m001_video_probe(struct soc_camera_device *icd,
case 0x8411:
case 0x8421:
mt9m001->model = V4L2_IDENT_MT9M001C12ST;
- icd->formats = mt9m001_colour_formats;
+ mt9m001->fmts = mt9m001_colour_fmts;
break;
case 0x8431:
mt9m001->model = V4L2_IDENT_MT9M001C12STM;
- icd->formats = mt9m001_monochrome_formats;
+ mt9m001->fmts = mt9m001_monochrome_fmts;
break;
default:
dev_err(&client->dev,
@@ -620,7 +635,7 @@ static int mt9m001_video_probe(struct soc_camera_device *icd,
return -ENODEV;
}
- icd->num_formats = 0;
+ mt9m001->num_fmts = 0;
/*
* This is a 10bit sensor, so by default we only allow 10bit.
@@ -633,14 +648,14 @@ static int mt9m001_video_probe(struct soc_camera_device *icd,
flags = SOCAM_DATAWIDTH_10;
if (flags & SOCAM_DATAWIDTH_10)
- icd->num_formats++;
+ mt9m001->num_fmts++;
else
- icd->formats++;
+ mt9m001->fmts++;
if (flags & SOCAM_DATAWIDTH_8)
- icd->num_formats++;
+ mt9m001->num_fmts++;
- mt9m001->fourcc = icd->formats->fourcc;
+ mt9m001->fmt = &mt9m001->fmts[0];
dev_info(&client->dev, "Detected a MT9M001 chip ID %x (%s)\n", data,
data == 0x8431 ? "C12STM" : "C12ST");
@@ -686,14 +701,28 @@ static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
#endif
};
+static int mt9m001_enum_fmt(struct v4l2_subdev *sd, int index,
+ enum v4l2_mbus_pixelcode *code)
+{
+ struct i2c_client *client = sd->priv;
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+
+ if ((unsigned int)index >= mt9m001->num_fmts)
+ return -EINVAL;
+
+ *code = mt9m001->fmts[index].code;
+ return 0;
+}
+
static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
.s_stream = mt9m001_s_stream,
- .s_fmt = mt9m001_s_fmt,
- .g_fmt = mt9m001_g_fmt,
- .try_fmt = mt9m001_try_fmt,
+ .s_mbus_fmt = mt9m001_s_fmt,
+ .g_mbus_fmt = mt9m001_g_fmt,
+ .try_mbus_fmt = mt9m001_try_fmt,
.s_crop = mt9m001_s_crop,
.g_crop = mt9m001_g_crop,
.cropcap = mt9m001_cropcap,
+ .enum_mbus_fmt = mt9m001_enum_fmt,
};
static struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = {

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