mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 10:44:14 +08:00
[media] mt9m111: properly implement .s_crop and .s_fmt(), reset on STREAMON
mt9m111 camera sensors support cropping and scaling. The current implementation is broken. For example, .s_crop() sets output frame sizes instead of the input cropping window. This patch adds a proper implementation of these methods. Besides it adds a sensor-disable and -enable operations on first open() and last close() respectively, to save power while closed and to return the camera to the default power-on state. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski
Mauro Carvalho Chehab
parent
a650bf1eff
commit
da673e603b
@ -185,19 +185,6 @@ struct mt9m111_datafmt {
|
||||
enum v4l2_colorspace colorspace;
|
||||
};
|
||||
|
||||
/* Find a data format by a pixel code in an array */
|
||||
static const struct mt9m111_datafmt *mt9m111_find_datafmt(
|
||||
enum v4l2_mbus_pixelcode code, const struct mt9m111_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 mt9m111_datafmt mt9m111_colour_fmts[] = {
|
||||
{V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG},
|
||||
{V4L2_MBUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG},
|
||||
@ -220,7 +207,9 @@ struct mt9m111 {
|
||||
int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code
|
||||
* from v4l2-chip-ident.h */
|
||||
struct mt9m111_context *ctx;
|
||||
struct v4l2_rect rect;
|
||||
struct v4l2_rect rect; /* cropping rectangle */
|
||||
int width; /* output */
|
||||
int height; /* sizes */
|
||||
struct mutex power_lock; /* lock to protect power_count */
|
||||
int power_count;
|
||||
const struct mt9m111_datafmt *fmt;
|
||||
@ -228,6 +217,18 @@ struct mt9m111 {
|
||||
unsigned char datawidth;
|
||||
};
|
||||
|
||||
/* Find a data format by a pixel code */
|
||||
static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
|
||||
enum v4l2_mbus_pixelcode code)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
|
||||
if (mt9m111_colour_fmts[i].code == code)
|
||||
return mt9m111_colour_fmts + i;
|
||||
|
||||
return mt9m111->fmt;
|
||||
}
|
||||
|
||||
static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
|
||||
{
|
||||
return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
|
||||
@ -316,43 +317,49 @@ static int mt9m111_set_context(struct mt9m111 *mt9m111,
|
||||
}
|
||||
|
||||
static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
|
||||
struct v4l2_rect *rect, struct mt9m111_context *ctx)
|
||||
struct mt9m111_context *ctx, struct v4l2_rect *rect,
|
||||
unsigned int width, unsigned int height)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
|
||||
int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, MT9M111_MAX_WIDTH);
|
||||
int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
|
||||
if (!ret)
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_yzoom, MT9M111_MAX_HEIGHT);
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
|
||||
if (!ret)
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_xsize, rect->width);
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
|
||||
if (!ret)
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_ysize, rect->height);
|
||||
ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mt9m111_setup_rect(struct mt9m111 *mt9m111,
|
||||
struct v4l2_rect *rect)
|
||||
static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
|
||||
int width, int height, enum v4l2_mbus_pixelcode code)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
|
||||
int ret;
|
||||
bool is_raw_format = mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
||||
mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE;
|
||||
|
||||
ret = reg_write(COLUMN_START, rect->left);
|
||||
if (!ret)
|
||||
ret = reg_write(ROW_START, rect->top);
|
||||
|
||||
if (is_raw_format) {
|
||||
if (!ret)
|
||||
ret = reg_write(WINDOW_WIDTH, rect->width);
|
||||
if (!ret)
|
||||
ret = reg_write(WINDOW_HEIGHT, rect->height);
|
||||
|
||||
if (code != V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
|
||||
/* IFP in use, down-scaling possible */
|
||||
if (!ret)
|
||||
ret = reg_write(WINDOW_WIDTH, rect->width);
|
||||
ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
|
||||
rect, width, height);
|
||||
if (!ret)
|
||||
ret = reg_write(WINDOW_HEIGHT, rect->height);
|
||||
} else {
|
||||
if (!ret)
|
||||
ret = mt9m111_setup_rect_ctx(mt9m111, rect, &context_b);
|
||||
if (!ret)
|
||||
ret = mt9m111_setup_rect_ctx(mt9m111, rect, &context_a);
|
||||
ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
|
||||
rect, width, height);
|
||||
}
|
||||
|
||||
dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
|
||||
__func__, code, rect->width, rect->height, rect->left, rect->top,
|
||||
width, height, ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -377,43 +384,41 @@ static int mt9m111_reset(struct mt9m111 *mt9m111)
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mt9m111_make_rect(struct mt9m111 *mt9m111,
|
||||
struct v4l2_rect *rect)
|
||||
{
|
||||
if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
||||
mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
|
||||
/* Bayer format - even size lengths */
|
||||
rect->width = ALIGN(rect->width, 2);
|
||||
rect->height = ALIGN(rect->height, 2);
|
||||
/* Let the user play with the starting pixel */
|
||||
}
|
||||
|
||||
/* FIXME: the datasheet doesn't specify minimum sizes */
|
||||
soc_camera_limit_side(&rect->left, &rect->width,
|
||||
MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
|
||||
|
||||
soc_camera_limit_side(&rect->top, &rect->height,
|
||||
MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
|
||||
|
||||
return mt9m111_setup_rect(mt9m111, rect);
|
||||
}
|
||||
|
||||
static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
|
||||
{
|
||||
struct v4l2_rect rect = a->c;
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
||||
int width, height;
|
||||
int ret;
|
||||
|
||||
dev_dbg(&client->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
|
||||
__func__, rect.left, rect.top, rect.width, rect.height);
|
||||
|
||||
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||||
return -EINVAL;
|
||||
|
||||
ret = mt9m111_make_rect(mt9m111, &rect);
|
||||
if (!ret)
|
||||
if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
||||
mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
|
||||
/* Bayer format - even size lengths */
|
||||
rect.width = ALIGN(rect.width, 2);
|
||||
rect.height = ALIGN(rect.height, 2);
|
||||
/* Let the user play with the starting pixel */
|
||||
}
|
||||
|
||||
/* FIXME: the datasheet doesn't specify minimum sizes */
|
||||
soc_camera_limit_side(&rect.left, &rect.width,
|
||||
MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
|
||||
|
||||
soc_camera_limit_side(&rect.top, &rect.height,
|
||||
MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
|
||||
|
||||
width = min(mt9m111->width, rect.width);
|
||||
height = min(mt9m111->height, rect.height);
|
||||
|
||||
ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code);
|
||||
if (!ret) {
|
||||
mt9m111->rect = rect;
|
||||
mt9m111->width = width;
|
||||
mt9m111->height = height;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -448,8 +453,8 @@ static int mt9m111_g_fmt(struct v4l2_subdev *sd,
|
||||
{
|
||||
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
||||
|
||||
mf->width = mt9m111->rect.width;
|
||||
mf->height = mt9m111->rect.height;
|
||||
mf->width = mt9m111->width;
|
||||
mf->height = mt9m111->height;
|
||||
mf->code = mt9m111->fmt->code;
|
||||
mf->colorspace = mt9m111->fmt->colorspace;
|
||||
mf->field = V4L2_FIELD_NONE;
|
||||
@ -527,80 +532,74 @@ static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mt9m111_s_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_mbus_framefmt *mf)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
const struct mt9m111_datafmt *fmt;
|
||||
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
||||
struct v4l2_rect rect = {
|
||||
.left = mt9m111->rect.left,
|
||||
.top = mt9m111->rect.top,
|
||||
.width = mf->width,
|
||||
.height = mf->height,
|
||||
};
|
||||
int ret;
|
||||
|
||||
fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
|
||||
ARRAY_SIZE(mt9m111_colour_fmts));
|
||||
if (!fmt)
|
||||
return -EINVAL;
|
||||
|
||||
dev_dbg(&client->dev,
|
||||
"%s code=%x left=%d, top=%d, width=%d, height=%d\n", __func__,
|
||||
mf->code, rect.left, rect.top, rect.width, rect.height);
|
||||
|
||||
ret = mt9m111_make_rect(mt9m111, &rect);
|
||||
if (!ret)
|
||||
ret = mt9m111_set_pixfmt(mt9m111, mf->code);
|
||||
if (!ret) {
|
||||
mt9m111->rect = rect;
|
||||
mt9m111->fmt = fmt;
|
||||
mf->colorspace = fmt->colorspace;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mt9m111_try_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_mbus_framefmt *mf)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
||||
const struct mt9m111_datafmt *fmt;
|
||||
bool bayer = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
||||
mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE;
|
||||
struct v4l2_rect *rect = &mt9m111->rect;
|
||||
bool bayer;
|
||||
|
||||
fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
|
||||
ARRAY_SIZE(mt9m111_colour_fmts));
|
||||
if (!fmt) {
|
||||
fmt = mt9m111->fmt;
|
||||
mf->code = fmt->code;
|
||||
}
|
||||
fmt = mt9m111_find_datafmt(mt9m111, mf->code);
|
||||
|
||||
bayer = fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
||||
fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE;
|
||||
|
||||
/*
|
||||
* With Bayer format enforce even side lengths, but let the user play
|
||||
* with the starting pixel
|
||||
*/
|
||||
if (bayer) {
|
||||
rect->width = ALIGN(rect->width, 2);
|
||||
rect->height = ALIGN(rect->height, 2);
|
||||
}
|
||||
|
||||
if (mf->height > MT9M111_MAX_HEIGHT)
|
||||
mf->height = MT9M111_MAX_HEIGHT;
|
||||
else if (mf->height < 2)
|
||||
mf->height = 2;
|
||||
else if (bayer)
|
||||
mf->height = ALIGN(mf->height, 2);
|
||||
if (fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
|
||||
/* IFP bypass mode, no scaling */
|
||||
mf->width = rect->width;
|
||||
mf->height = rect->height;
|
||||
} else {
|
||||
/* No upscaling */
|
||||
if (mf->width > rect->width)
|
||||
mf->width = rect->width;
|
||||
if (mf->height > rect->height)
|
||||
mf->height = rect->height;
|
||||
}
|
||||
|
||||
if (mf->width > MT9M111_MAX_WIDTH)
|
||||
mf->width = MT9M111_MAX_WIDTH;
|
||||
else if (mf->width < 2)
|
||||
mf->width = 2;
|
||||
else if (bayer)
|
||||
mf->width = ALIGN(mf->width, 2);
|
||||
dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__,
|
||||
mf->width, mf->height, fmt->code);
|
||||
|
||||
mf->code = fmt->code;
|
||||
mf->colorspace = fmt->colorspace;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mt9m111_s_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_mbus_framefmt *mf)
|
||||
{
|
||||
const struct mt9m111_datafmt *fmt;
|
||||
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
||||
struct v4l2_rect *rect = &mt9m111->rect;
|
||||
int ret;
|
||||
|
||||
mt9m111_try_fmt(sd, mf);
|
||||
fmt = mt9m111_find_datafmt(mt9m111, mf->code);
|
||||
/* try_fmt() guarantees fmt != NULL && fmt->code == mf->code */
|
||||
|
||||
ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code);
|
||||
if (!ret)
|
||||
ret = mt9m111_set_pixfmt(mt9m111, mf->code);
|
||||
if (!ret) {
|
||||
mt9m111->width = mf->width;
|
||||
mt9m111->height = mf->height;
|
||||
mt9m111->fmt = fmt;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mt9m111_g_chip_ident(struct v4l2_subdev *sd,
|
||||
struct v4l2_dbg_chip_ident *id)
|
||||
{
|
||||
@ -765,7 +764,8 @@ static void mt9m111_restore_state(struct mt9m111 *mt9m111)
|
||||
{
|
||||
mt9m111_set_context(mt9m111, mt9m111->ctx);
|
||||
mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
|
||||
mt9m111_setup_rect(mt9m111, &mt9m111->rect);
|
||||
mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
|
||||
mt9m111->width, mt9m111->height, mt9m111->fmt->code);
|
||||
v4l2_ctrl_handler_setup(&mt9m111->hdl);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user