Commit 08a0061d authored by Dave Stevenson's avatar Dave Stevenson Committed by Mauro Carvalho Chehab

media: i2c: imx290: Convert V4L2_CID_HBLANK to read/write

The driver exposed V4L2_CID_HBLANK as a read only control to allow
for exposure calculations and determination of the frame rate.

Convert to a read/write control so that the frame rate can be
controlled.
Signed-off-by: default avatarDave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent d0347f98
...@@ -50,6 +50,7 @@ ...@@ -50,6 +50,7 @@
#define IMX290_GAIN IMX290_REG_8BIT(0x3014) #define IMX290_GAIN IMX290_REG_8BIT(0x3014)
#define IMX290_VMAX IMX290_REG_24BIT(0x3018) #define IMX290_VMAX IMX290_REG_24BIT(0x3018)
#define IMX290_HMAX IMX290_REG_16BIT(0x301c) #define IMX290_HMAX IMX290_REG_16BIT(0x301c)
#define IMX290_HMAX_MAX 0xffff
#define IMX290_SHS1 IMX290_REG_24BIT(0x3020) #define IMX290_SHS1 IMX290_REG_24BIT(0x3020)
#define IMX290_WINWV_OB IMX290_REG_8BIT(0x303a) #define IMX290_WINWV_OB IMX290_REG_8BIT(0x303a)
#define IMX290_WINPV IMX290_REG_16BIT(0x303c) #define IMX290_WINPV IMX290_REG_16BIT(0x303c)
...@@ -186,7 +187,7 @@ struct imx290_regval { ...@@ -186,7 +187,7 @@ struct imx290_regval {
struct imx290_mode { struct imx290_mode {
u32 width; u32 width;
u32 height; u32 height;
u32 hmax; u32 hmax_min;
u8 link_freq_index; u8 link_freq_index;
const struct imx290_regval *data; const struct imx290_regval *data;
...@@ -429,7 +430,7 @@ static const struct imx290_mode imx290_modes_2lanes[] = { ...@@ -429,7 +430,7 @@ static const struct imx290_mode imx290_modes_2lanes[] = {
{ {
.width = 1920, .width = 1920,
.height = 1080, .height = 1080,
.hmax = 2200, .hmax_min = 2200,
.link_freq_index = FREQ_INDEX_1080P, .link_freq_index = FREQ_INDEX_1080P,
.data = imx290_1080p_settings, .data = imx290_1080p_settings,
.data_size = ARRAY_SIZE(imx290_1080p_settings), .data_size = ARRAY_SIZE(imx290_1080p_settings),
...@@ -437,7 +438,7 @@ static const struct imx290_mode imx290_modes_2lanes[] = { ...@@ -437,7 +438,7 @@ static const struct imx290_mode imx290_modes_2lanes[] = {
{ {
.width = 1280, .width = 1280,
.height = 720, .height = 720,
.hmax = 3300, .hmax_min = 3300,
.link_freq_index = FREQ_INDEX_720P, .link_freq_index = FREQ_INDEX_720P,
.data = imx290_720p_settings, .data = imx290_720p_settings,
.data_size = ARRAY_SIZE(imx290_720p_settings), .data_size = ARRAY_SIZE(imx290_720p_settings),
...@@ -448,7 +449,7 @@ static const struct imx290_mode imx290_modes_4lanes[] = { ...@@ -448,7 +449,7 @@ static const struct imx290_mode imx290_modes_4lanes[] = {
{ {
.width = 1920, .width = 1920,
.height = 1080, .height = 1080,
.hmax = 2200, .hmax_min = 2200,
.link_freq_index = FREQ_INDEX_1080P, .link_freq_index = FREQ_INDEX_1080P,
.data = imx290_1080p_settings, .data = imx290_1080p_settings,
.data_size = ARRAY_SIZE(imx290_1080p_settings), .data_size = ARRAY_SIZE(imx290_1080p_settings),
...@@ -456,7 +457,7 @@ static const struct imx290_mode imx290_modes_4lanes[] = { ...@@ -456,7 +457,7 @@ static const struct imx290_mode imx290_modes_4lanes[] = {
{ {
.width = 1280, .width = 1280,
.height = 720, .height = 720,
.hmax = 3300, .hmax_min = 3300,
.link_freq_index = FREQ_INDEX_720P, .link_freq_index = FREQ_INDEX_720P,
.data = imx290_720p_settings, .data = imx290_720p_settings,
.data_size = ARRAY_SIZE(imx290_720p_settings), .data_size = ARRAY_SIZE(imx290_720p_settings),
...@@ -712,6 +713,12 @@ static int imx290_set_ctrl(struct v4l2_ctrl *ctrl) ...@@ -712,6 +713,12 @@ static int imx290_set_ctrl(struct v4l2_ctrl *ctrl)
} }
break; break;
case V4L2_CID_HBLANK:
ret = imx290_write(imx290, IMX290_HMAX,
ctrl->val + imx290->current_mode->width,
NULL);
break;
default: default:
ret = -EINVAL; ret = -EINVAL;
break; break;
...@@ -742,12 +749,14 @@ static void imx290_ctrl_update(struct imx290 *imx290, ...@@ -742,12 +749,14 @@ static void imx290_ctrl_update(struct imx290 *imx290,
const struct v4l2_mbus_framefmt *format, const struct v4l2_mbus_framefmt *format,
const struct imx290_mode *mode) const struct imx290_mode *mode)
{ {
unsigned int hblank = mode->hmax - mode->width; unsigned int hblank_min = mode->hmax_min - mode->width;
unsigned int hblank_max = IMX290_HMAX_MAX - mode->width;
unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height; unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height;
__v4l2_ctrl_s_ctrl(imx290->link_freq, mode->link_freq_index); __v4l2_ctrl_s_ctrl(imx290->link_freq, mode->link_freq_index);
__v4l2_ctrl_modify_range(imx290->hblank, hblank, hblank, 1, hblank); __v4l2_ctrl_modify_range(imx290->hblank, hblank_min, hblank_max, 1,
hblank_min);
__v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank, 1, vblank); __v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank, 1, vblank);
} }
...@@ -804,10 +813,11 @@ static int imx290_ctrl_init(struct imx290 *imx290) ...@@ -804,10 +813,11 @@ static int imx290_ctrl_init(struct imx290 *imx290)
ARRAY_SIZE(imx290_test_pattern_menu) - 1, ARRAY_SIZE(imx290_test_pattern_menu) - 1,
0, 0, imx290_test_pattern_menu); 0, 0, imx290_test_pattern_menu);
/*
* Actual range will be set from imx290_ctrl_update later in the probe.
*/
imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_HBLANK, 1, 1, 1, 1); V4L2_CID_HBLANK, 1, 1, 1, 1);
if (imx290->hblank)
imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_VBLANK, 1, 1, 1, 1); V4L2_CID_VBLANK, 1, 1, 1, 1);
...@@ -876,11 +886,6 @@ static int imx290_start_streaming(struct imx290 *imx290, ...@@ -876,11 +886,6 @@ static int imx290_start_streaming(struct imx290 *imx290,
return ret; return ret;
} }
ret = imx290_write(imx290, IMX290_HMAX, imx290->current_mode->hmax,
NULL);
if (ret)
return ret;
/* Apply customized values from user */ /* Apply customized values from user */
ret = __v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler); ret = __v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler);
if (ret) { if (ret) {
......
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