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器件型号：AM62A7 工具与软件：
您好！
SDK：09.01.00
EVM：AM62A SK EVM
我们将图像传感器与 AM62A EVM 集成、一切都可以正常运行(能够获取流、能够更改分辨率、位格式)。 之后、客户希望我们集成更改、以便传感器可以接收嵌入的元数据。 我们进行了以下更改以集成嵌入式元数据。
static void sensor_init_formats(struct v4l2_subdev_state *state)
{
int i;
struct v4l2_mbus_framefmt *format;
for (i = 0; i < 2; ++i) {
format = v4l2_subdev_state_get_stream_format(state, 0, i);
format->width = 1920;
if(i == 0) {
format->height = 1200;
format->code = MEDIA_BUS_FMT_SRGGB10_1X10;
}
else {
format->height = 5;
format->code = MEDIA_BUS_FMT_SGRBG10_1X10;
}
format->field = V4L2_FIELD_NONE;
format->colorspace = V4L2_COLORSPACE_DEFAULT;
}
return;
}
static int _sensor_set_routing(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state)
{
int ret;
struct v4l2_subdev_route routes[] = {
{
.source_pad = 0,
.source_stream = 0,
.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE,
},
{
.source_pad = 0,
.source_stream = 1,
.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE,
},
};
struct v4l2_subdev_krouting routing = {
.num_routes = ARRAY_SIZE(routes),
.routes = routes,
};
struct i2c_client *client = v4l2_get_subdevdata(sd);
dev_info(&client->dev, "--------- In %s --------\n", __func__);
ret = v4l2_subdev_set_routing(sd, state, &routing);
if (ret < 0)
return ret;
sensor_init_formats(state);
dev_info(&client->dev, "--------- Out %s --------\n", __func__);
return ret;
}
static int sensor_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd)
{
u32 bpp;
int ret = 0;
unsigned int i;
struct v4l2_subdev_state *state;
struct v4l2_mbus_framefmt *fmt;
struct i2c_client *client = v4l2_get_subdevdata(sd);
dev_info(&client->dev, "--------- In %s --------\n", __func__);
if (pad != 0)
return -EINVAL;
state = v4l2_subdev_lock_and_get_active_state(sd);
memset(fd, 0, sizeof(*fd));
fd->type = V4L2_MBUS_FRAME_DESC_TYPE_CSI2;
/* pixel stream - 2 virtual channels */
bpp = 16;
for (i = 0; i < 2; ++i) {
fmt = v4l2_subdev_state_get_stream_format(state, 0, i);
if (!fmt) {
ret = -EPIPE;
v4l2_subdev_unlock_state(state);
return ret;
}
fd->entry[fd->num_entries].stream = i;
fd->entry[fd->num_entries].flags = V4L2_MBUS_FRAME_DESC_FL_LEN_MAX;
fd->entry[fd->num_entries].pixelcode = fmt->code;
fd->entry[fd->num_entries].bus.csi2.vc = 0;
fd->entry[fd->num_entries].length = fmt->width * fmt->height * bpp / 8;
if(i == 0) {
fd->entry[fd->num_entries].bus.csi2.dt = 0x2b; /* RAW10 */
dev_info(&client->dev, "width - %d, height - %d\n", fmt->width, fmt->height);
}
else {
fd->entry[fd->num_entries].bus.csi2.dt = 0x12; /* RAW8 */
dev_info(&client->dev, "width - %d, height - %d\n", fmt->width, fmt->height);
}
fd->num_entries++;
}
v4l2_subdev_unlock_state(state);
dev_info(&client->dev, "--------- Out %s --------\n", __func__);
return ret;
}
static int sensor_set_routing(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
enum v4l2_subdev_format_whence which,
struct v4l2_subdev_krouting *routing)
{
int ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (routing->num_routes == 0 || routing->num_routes > 2)
return -EINVAL;
dev_info(&client->dev, "--------- In %s --------\n", __func__);
dev_info(&client->dev, "--------- Number of routes = %d --------\n", routing->num_routes);
v4l2_subdev_lock_state(state);
ret = _sensor_set_routing(sd, state);
v4l2_subdev_unlock_state(state);
dev_info(&client->dev, "--------- Out %s --------\n", __func__);
return ret;
}
static int sensor_init_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state)
{
int ret;
struct i2c_client *client = v4l2_get_subdevdata(sd);
dev_info(&client->dev, "--------- In %s --------\n", __func__);
ret = _sensor_set_routing(sd, state);
dev_info(&client->dev, "--------- Out %s --------\n", __func__);
dev_info(&client->dev, "--------- ret %d --------\n", ret);
return ret;
}
static const struct v4l2_subdev_pad_ops sensor_subdev_pad_ops = {
.init_cfg = sensor_init_cfg,
.enum_mbus_code = sensor_enum_mbus_code,
.set_fmt = sensor_set_fmt,
.get_fmt = sensor_get_fmt,
.set_routing = sensor_set_routing,
.get_frame_desc = sensor_get_frame_desc,
};
在创建了上面代码中提到的两个独立流后、我们能够在一个流上接收图像数据、在另一个流上接收嵌入数据设置不同的两个流的数据类型。 因此、使用上述方法接收嵌入式元数据和图像数据没有问题
我们的传感器支持1920x1200 (10位、8位)和960x600 (10位、8位)模式。 通过更改驱动程序中的嵌入式元数据、我无法设置其他分辨率(使用 media-ctl 命令、我可以设置分辨率、但当我尝试使用 GST-launch 命令以该分辨率进行流式传输时、它会提供流式传输错误)、并通过该分辨率接收图像数据。
使用 驱动程序中完成的上述2个流式配置而不允许设置其他分辨率、是否可能会修复图像流格式？
此致、
Jay
