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V4L/DVB (13644): v4l: add new v4l2-subdev sensor operations, use g_skip_top_lines in soc-camera

Browse source 
Introduce new v4l2-subdev sensor operations, move .enum_framesizes() and
.enum_frameintervals() methods to it, add a new .g_skip_top_lines() method
and switch soc-camera to use it instead of .y_skip_top soc_camera_device
member, which can now be removed.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski 2009-12-11 11:14:46 -03:00 committed by Mauro Carvalho Chehab
parent 11e3d1adbe
commit 325361088b
8 changed files with 90 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
drivers/media/video/mt9m001.c
View file

@ -82,6 +82,7 @@ struct mt9m001 {
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
unsigned int gain;
unsigned int exposure;
unsigned short y_skip_top; /* Lines to skip at the top */
unsigned char autoexposure;
};
@ -222,7 +223,7 @@ static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
soc_camera_limit_side(&rect.top, &rect.height,
MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT);
total_h = rect.height + icd->y_skip_top + vblank;
total_h = rect.height + mt9m001->y_skip_top + vblank;
/* Blanking and start values - default... */
ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank);
@ -239,7 +240,7 @@ static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect.width - 1);
if (!ret)
ret = reg_write(client, MT9M001_WINDOW_HEIGHT,
rect.height + icd->y_skip_top - 1);
rect.height + mt9m001->y_skip_top - 1);
if (!ret && mt9m001->autoexposure) {
ret = reg_write(client, MT9M001_SHUTTER_WIDTH, total_h);
if (!ret) {
@ -327,13 +328,13 @@ static int mt9m001_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
static int mt9m001_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct i2c_client *client = sd->priv;
struct soc_camera_device *icd = client->dev.platform_data;
struct mt9m001 *mt9m001 = to_mt9m001(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
v4l_bound_align_image(&pix->width, MT9M001_MIN_WIDTH,
MT9M001_MAX_WIDTH, 1,
&pix->height, MT9M001_MIN_HEIGHT + icd->y_skip_top,
MT9M001_MAX_HEIGHT + icd->y_skip_top, 0, 0);
&pix->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)
@ -552,7 +553,7 @@ static int mt9m001_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
if (ctrl->value) {
const u16 vblank = 25;
unsigned int total_h = mt9m001->rect.height +
icd->y_skip_top + vblank;
mt9m001->y_skip_top + vblank;
if (reg_write(client, MT9M001_SHUTTER_WIDTH,
total_h) < 0)
return -EIO;
@ -655,6 +656,16 @@ static void mt9m001_video_remove(struct soc_camera_device *icd)
icl->free_bus(icl);
}
static int mt9m001_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
{
struct i2c_client *client = sd->priv;
struct mt9m001 *mt9m001 = to_mt9m001(client);
*lines = mt9m001->y_skip_top;
return 0;
}
static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
.g_ctrl = mt9m001_g_ctrl,
.s_ctrl = mt9m001_s_ctrl,
@ -675,9 +686,14 @@ static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
.cropcap = mt9m001_cropcap,
};
static struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = {
.g_skip_top_lines = mt9m001_g_skip_top_lines,
};
static struct v4l2_subdev_ops mt9m001_subdev_ops = {
.core = &mt9m001_subdev_core_ops,
.video = &mt9m001_subdev_video_ops,
.sensor = &mt9m001_subdev_sensor_ops,
};
static int mt9m001_probe(struct i2c_client *client,
@ -714,8 +730,8 @@ static int mt9m001_probe(struct i2c_client *client,
/* Second stage probe - when a capture adapter is there */
icd->ops = &mt9m001_ops;
icd->y_skip_top = 0;
mt9m001->y_skip_top = 0;
mt9m001->rect.left = MT9M001_COLUMN_SKIP;
mt9m001->rect.top = MT9M001_ROW_SKIP;
mt9m001->rect.width = MT9M001_MAX_WIDTH;

1
drivers/media/video/mt9m111.c
View file

@ -1019,7 +1019,6 @@ static int mt9m111_probe(struct i2c_client *client,
/* Second stage probe - when a capture adapter is there */
icd->ops = &mt9m111_ops;
icd->y_skip_top = 0;
mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;

24
drivers/media/video/mt9t031.c
View file

@ -74,6 +74,7 @@ struct mt9t031 {
u16 xskip;
u16 yskip;
unsigned int gain;
unsigned short y_skip_top; /* Lines to skip at the top */
unsigned int exposure;
unsigned char autoexposure;
};
@ -301,9 +302,9 @@ static int mt9t031_set_params(struct soc_camera_device *icd,
ret = reg_write(client, MT9T031_WINDOW_WIDTH, rect->width - 1);
if (ret >= 0)
ret = reg_write(client, MT9T031_WINDOW_HEIGHT,
rect->height + icd->y_skip_top - 1);
rect->height + mt9t031->y_skip_top - 1);
if (ret >= 0 && mt9t031->autoexposure) {
unsigned int total_h = rect->height + icd->y_skip_top + vblank;
unsigned int total_h = rect->height + mt9t031->y_skip_top + vblank;
ret = set_shutter(client, total_h);
if (ret >= 0) {
const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
@ -657,7 +658,7 @@ static int mt9t031_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
const u16 vblank = MT9T031_VERTICAL_BLANK;
const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
unsigned int total_h = mt9t031->rect.height +
icd->y_skip_top + vblank;
mt9t031->y_skip_top + vblank;
if (set_shutter(client, total_h) < 0)
return -EIO;
@ -714,6 +715,16 @@ static int mt9t031_video_probe(struct i2c_client *client)
return ret;
}
static int mt9t031_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
{
struct i2c_client *client = sd->priv;
struct mt9t031 *mt9t031 = to_mt9t031(client);
*lines = mt9t031->y_skip_top;
return 0;
}
static struct v4l2_subdev_core_ops mt9t031_subdev_core_ops = {
.g_ctrl = mt9t031_g_ctrl,
.s_ctrl = mt9t031_s_ctrl,
@ -734,9 +745,14 @@ static struct v4l2_subdev_video_ops mt9t031_subdev_video_ops = {
.cropcap = mt9t031_cropcap,
};
static struct v4l2_subdev_sensor_ops mt9t031_subdev_sensor_ops = {
.g_skip_top_lines = mt9t031_g_skip_top_lines,
};
static struct v4l2_subdev_ops mt9t031_subdev_ops = {
.core = &mt9t031_subdev_core_ops,
.video = &mt9t031_subdev_video_ops,
.sensor = &mt9t031_subdev_sensor_ops,
};
static int mt9t031_probe(struct i2c_client *client,
@ -773,8 +789,8 @@ static int mt9t031_probe(struct i2c_client *client,
/* Second stage probe - when a capture adapter is there */
icd->ops = &mt9t031_ops;
icd->y_skip_top = 0;
mt9t031->y_skip_top = 0;
mt9t031->rect.left = MT9T031_COLUMN_SKIP;
mt9t031->rect.top = MT9T031_ROW_SKIP;
mt9t031->rect.width = MT9T031_MAX_WIDTH;

32
drivers/media/video/mt9v022.c
View file

@ -97,6 +97,7 @@ struct mt9v022 {
__u32 fourcc;
int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
u16 chip_control;
unsigned short y_skip_top; /* Lines to skip at the top */
};
static struct mt9v022 *to_mt9v022(const struct i2c_client *client)
@ -265,7 +266,6 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
struct i2c_client *client = sd->priv;
struct mt9v022 *mt9v022 = to_mt9v022(client);
struct v4l2_rect rect = a->c;
struct soc_camera_device *icd = client->dev.platform_data;
int ret;
/* Bayer format - even size lengths */
@ -287,10 +287,10 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
if (ret >= 0) {
if (ret & 1) /* Autoexposure */
ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH,
rect.height + icd->y_skip_top + 43);
rect.height + mt9v022->y_skip_top + 43);
else
ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
rect.height + icd->y_skip_top + 43);
rect.height + mt9v022->y_skip_top + 43);
}
/* Setup frame format: defaults apart from width and height */
if (!ret)
@ -309,7 +309,7 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width);
if (!ret)
ret = reg_write(client, MT9V022_WINDOW_HEIGHT,
rect.height + icd->y_skip_top);
rect.height + mt9v022->y_skip_top);
if (ret < 0)
return ret;
@ -410,15 +410,15 @@ static int mt9v022_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
static int mt9v022_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct i2c_client *client = sd->priv;
struct soc_camera_device *icd = client->dev.platform_data;
struct mt9v022 *mt9v022 = to_mt9v022(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
int align = pix->pixelformat == V4L2_PIX_FMT_SBGGR8 ||
pix->pixelformat == V4L2_PIX_FMT_SBGGR16;
v4l_bound_align_image(&pix->width, MT9V022_MIN_WIDTH,
MT9V022_MAX_WIDTH, align,
&pix->height, MT9V022_MIN_HEIGHT + icd->y_skip_top,
MT9V022_MAX_HEIGHT + icd->y_skip_top, align, 0);
&pix->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top,
MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0);
return 0;
}
@ -787,6 +787,16 @@ static void mt9v022_video_remove(struct soc_camera_device *icd)
icl->free_bus(icl);
}
static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
{
struct i2c_client *client = sd->priv;
struct mt9v022 *mt9v022 = to_mt9v022(client);
*lines = mt9v022->y_skip_top;
return 0;
}
static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
.g_ctrl = mt9v022_g_ctrl,
.s_ctrl = mt9v022_s_ctrl,
@ -807,9 +817,14 @@ static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.cropcap = mt9v022_cropcap,
};
static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
.g_skip_top_lines = mt9v022_g_skip_top_lines,
};
static struct v4l2_subdev_ops mt9v022_subdev_ops = {
.core = &mt9v022_subdev_core_ops,
.video = &mt9v022_subdev_video_ops,
.sensor = &mt9v022_subdev_sensor_ops,
};
static int mt9v022_probe(struct i2c_client *client,
@ -851,8 +866,7 @@ static int mt9v022_probe(struct i2c_client *client,
* MT9V022 _really_ corrupts the first read out line.
* TODO: verify on i.MX31
*/
icd->y_skip_top = 1;
mt9v022->y_skip_top = 1;
mt9v022->rect.left = MT9V022_COLUMN_SKIP;
mt9v022->rect.top = MT9V022_ROW_SKIP;
mt9v022->rect.width = MT9V022_MAX_WIDTH;

9
drivers/media/video/pxa_camera.c
View file

@ -1051,8 +1051,13 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
unsigned long dw, bpp;
u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0;
u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0, y_skip_top;
int ret = v4l2_subdev_call(sd, sensor, g_skip_top_lines, &y_skip_top);
if (ret < 0)
y_skip_top = 0;
/* Datawidth is now guaranteed to be equal to one of the three values.
* We fix bit-per-pixel equal to data-width... */
@ -1118,7 +1123,7 @@ static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
cicr2 = 0;
cicr3 = CICR3_LPF_VAL(icd->user_height - 1) |
CICR3_BFW_VAL(min((unsigned short)255, icd->y_skip_top));
CICR3_BFW_VAL(min((u32)255, y_skip_top));
cicr4 |= pcdev->mclk_divisor;
__raw_writel(cicr1, pcdev->base + CICR1);

1
drivers/media/video/soc_camera_platform.c
View file

@ -128,7 +128,6 @@ static int soc_camera_platform_probe(struct platform_device *pdev)
/* Set the control device reference */
dev_set_drvdata(&icd->dev, &pdev->dev);
icd->y_skip_top = 0;
icd->ops = &soc_camera_platform_ops;
ici = to_soc_camera_host(icd->dev.parent);

1
include/media/soc_camera.h
View file

@ -24,7 +24,6 @@ struct soc_camera_device {
struct device *pdev; /* Platform device */
s32 user_width;
s32 user_height;
unsigned short y_skip_top; /* Lines to skip at the top */
unsigned char iface; /* Host number */
unsigned char devnum; /* Device number per host */
unsigned char buswidth; /* See comment in .c */

22
include/media/v4l2-subdev.h
View file

@ -263,6 +263,17 @@ struct v4l2_subdev_video_ops {
struct v4l2_dv_timings *timings);
};
/**
* struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations
* @g_skip_top_lines: number of lines at the top of the image to be skipped.
* This is needed for some sensors, which always corrupt
* several top lines of the output image, or which send their
* metadata in them.
*/
struct v4l2_subdev_sensor_ops {
int (*g_skip_top_lines)(struct v4l2_subdev *sd, u32 *lines);
};
/*
interrupt_service_routine: Called by the bridge chip's interrupt service
handler, when an IR interrupt status has be raised due to this subdev,
@ -347,11 +358,12 @@ struct v4l2_subdev_ir_ops {
};
struct v4l2_subdev_ops {
const struct v4l2_subdev_core_ops *core;
const struct v4l2_subdev_tuner_ops *tuner;
const struct v4l2_subdev_audio_ops *audio;
const struct v4l2_subdev_video_ops *video;
const struct v4l2_subdev_ir_ops *ir;
const struct v4l2_subdev_core_ops *core;
const struct v4l2_subdev_tuner_ops *tuner;
const struct v4l2_subdev_audio_ops *audio;
const struct v4l2_subdev_video_ops *video;
const struct v4l2_subdev_ir_ops *ir;
const struct v4l2_subdev_sensor_ops *sensor;
};
#define V4L2_SUBDEV_NAME_SIZE 32