Add suport for standard integer menu V4L2_CID_LINK_FREQ control.
The CSI2 link frequency value is specific for each sensor mode so the
sensor mode structure is extended to add this. The control is made
read-only and its value is updated when the sensor mode is changed -
on set_format.
Signed-off-by: Todor Tomov <todor.to...@linaro.org>
---
drivers/media/i2c/ov5645.c | 30 ++++++++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index 4583f66..85622e4 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -81,6 +81,7 @@ struct ov5645_mode_info {
const struct reg_value *data;
u32 data_size;
u32 pixel_clock;
+ u32 link_freq;
};
struct ov5645 {
@@ -101,6 +102,7 @@ struct ov5645 {
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *pixel_clock;
+ struct v4l2_ctrl *link_freq;
/* Cached register values */
u8 aec_pk_manual;
@@ -507,27 +509,35 @@ static inline struct ov5645 *to_ov5645(struct v4l2_subdev
*sd)
{ 0x4202, 0x00 }
};
+static const s64 link_freq[] = {
+ 222880000,
+ 334320000
+};
+
static const struct ov5645_mode_info ov5645_mode_info_data[] = {
{
.width = 1280,
.height = 960,
.data = ov5645_setting_sxga,
.data_size = ARRAY_SIZE(ov5645_setting_sxga),
- .pixel_clock = 111440000
+ .pixel_clock = 111440000,
+ .link_freq = 0 /* an index in link_freq[] */
},
{
.width = 1920,
.height = 1080,
.data = ov5645_setting_1080p,
.data_size = ARRAY_SIZE(ov5645_setting_1080p),
- .pixel_clock = 167160000
+ .pixel_clock = 167160000,
+ .link_freq = 1 /* an index in link_freq[] */
},
{
.width = 2592,
.height = 1944,
.data = ov5645_setting_full,
.data_size = ARRAY_SIZE(ov5645_setting_full),
- .pixel_clock = 167160000
+ .pixel_clock = 167160000,
+ .link_freq = 1 /* an index in link_freq[] */
},
};
@@ -990,6 +1000,11 @@ static int ov5645_set_format(struct v4l2_subdev *sd,
if (ret < 0)
return ret;
+ ret = v4l2_ctrl_s_ctrl(ov5645->link_freq,
+ new_mode->link_freq);
+ if (ret < 0)
+ return ret;
+
ov5645->current_mode = new_mode;
}
@@ -1209,7 +1224,7 @@ static int ov5645_probe(struct i2c_client *client,
mutex_init(&ov5645->power_lock);
- v4l2_ctrl_handler_init(&ov5645->ctrls, 8);
+ v4l2_ctrl_handler_init(&ov5645->ctrls, 9);
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_SATURATION, -4, 4, 1, 0);
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
@@ -1231,6 +1246,13 @@ static int ov5645_probe(struct i2c_client *client,
&ov5645_ctrl_ops,
V4L2_CID_PIXEL_RATE,
1, INT_MAX, 1, 1);
+ ov5645->link_freq = v4l2_ctrl_new_int_menu(&ov5645->ctrls,
+ &ov5645_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ ARRAY_SIZE(link_freq) - 1,
+ 0, link_freq);
+ if(ov5645->link_freq)
+ ov5645->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
ov5645->sd.ctrl_handler = &ov5645->ctrls;
--
1.9.1
