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media: i2c: ov13b10: Support 2 lane mode

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1. Fix pixel rate calculation to consider different lane number
2. Add 2104x1560 60fps 2 data lanes register setting
3. Support 2 lane in check_hwcfg
4. Select correct mode considering lane number used

Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Hao Yao <hao.yao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Hao Yao
2025-03-12 10:06:28 +08:00
committed by Hans Verkuil
parent 24c01de772
commit 65e52d07f1
1 changed files with 118 additions and 22 deletions
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140
drivers/media/i2c/ov13b10.c
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@@ -514,6 +514,52 @@ static const struct ov13b10_reg mode_1364x768_120fps_regs[] = {
{0x5001, 0x0d},
};
static const struct ov13b10_reg mode_2lanes_2104x1560_60fps_regs[] = {
{0x3016, 0x32},
{0x3106, 0x29},
{0x0305, 0xaf},
{0x3501, 0x06},
{0x3662, 0x88},
{0x3714, 0x28},
{0x3739, 0x10},
{0x37c2, 0x14},
{0x37d9, 0x06},
{0x37e2, 0x0c},
{0x3800, 0x00},
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x08},
{0x3804, 0x10},
{0x3805, 0x8f},
{0x3806, 0x0c},
{0x3807, 0x47},
{0x3808, 0x08},
{0x3809, 0x38},
{0x380a, 0x06},
{0x380b, 0x18},
{0x380c, 0x04},
{0x380d, 0x98},
{0x380e, 0x06},
{0x380f, 0x3e},
{0x3810, 0x00},
{0x3811, 0x07},
{0x3812, 0x00},
{0x3813, 0x05},
{0x3814, 0x03},
{0x3816, 0x03},
{0x3820, 0x8b},
{0x3c8c, 0x18},
{0x4008, 0x00},
{0x4009, 0x05},
{0x4050, 0x00},
{0x4051, 0x05},
{0x4501, 0x08},
{0x4505, 0x00},
{0x4837, 0x0e},
{0x5000, 0xfd},
{0x5001, 0x0d},
};
static const char * const ov13b10_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
@@ -527,15 +573,16 @@ static const char * const ov13b10_test_pattern_menu[] = {
#define OV13B10_LINK_FREQ_INDEX_0 0
#define OV13B10_EXT_CLK 19200000
#define OV13B10_DATA_LANES 4
#define OV13B10_4_DATA_LANES 4
#define OV13B10_2_DATA_LANES 2
/*
* pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
* data rate => double data rate; number of lanes => 4; bits per pixel => 10
* pixel_rate = data_rate * nr_of_lanes / bits_per_pixel
* data_rate => link_freq * 2; number of lanes => 4 or 2; bits per pixel => 10
*/
static u64 link_freq_to_pixel_rate(u64 f)
static u64 link_freq_to_pixel_rate(u64 f, u8 lanes)
{
f *= 2 * OV13B10_DATA_LANES;
f *= 2 * lanes;
do_div(f, 10);
return f;
@@ -559,7 +606,8 @@ static const struct ov13b10_link_freq_config
};
/* Mode configs */
static const struct ov13b10_mode supported_modes[] = {
static const struct ov13b10_mode supported_4_lanes_modes[] = {
/* 4 data lanes */
{
.width = 4208,
.height = 3120,
@@ -634,6 +682,23 @@ static const struct ov13b10_mode supported_modes[] = {
},
};
static const struct ov13b10_mode supported_2_lanes_modes[] = {
/* 2 data lanes */
{
.width = 2104,
.height = 1560,
.vts_def = OV13B10_VTS_60FPS,
.vts_min = OV13B10_VTS_60FPS,
.link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
.ppl = 2352,
.reg_list = {
.num_of_regs =
ARRAY_SIZE(mode_2lanes_2104x1560_60fps_regs),
.regs = mode_2lanes_2104x1560_60fps_regs,
},
},
};
struct ov13b10 {
struct v4l2_subdev sd;
struct media_pad pad;
@@ -651,12 +716,20 @@ struct ov13b10 {
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *exposure;
/* Supported modes */
const struct ov13b10_mode *supported_modes;
/* Current mode */
const struct ov13b10_mode *cur_mode;
/* Mutex for serialized access */
struct mutex mutex;
u8 supported_modes_num;
/* Data lanes used */
u8 data_lanes;
/* True if the device has been identified */
bool identified;
};
@@ -760,8 +833,8 @@ static int ov13b10_write_reg_list(struct ov13b10 *ov13b,
/* Open sub-device */
static int ov13b10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
const struct ov13b10_mode *default_mode = &supported_modes[0];
struct ov13b10 *ov13b = to_ov13b10(sd);
const struct ov13b10_mode *default_mode = ov13b->supported_modes;
struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_state_get_format(fh->state,
0);
@@ -980,7 +1053,10 @@ static int ov13b10_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
struct ov13b10 *ov13b = to_ov13b10(sd);
const struct ov13b10_mode *supported_modes = ov13b->supported_modes;
if (fse->index >= ov13b->supported_modes_num)
return -EINVAL;
if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
@@ -1040,6 +1116,7 @@ ov13b10_set_pad_format(struct v4l2_subdev *sd,
{
struct ov13b10 *ov13b = to_ov13b10(sd);
const struct ov13b10_mode *mode;
const struct ov13b10_mode *supported_modes = ov13b->supported_modes;
struct v4l2_mbus_framefmt *framefmt;
s32 vblank_def;
s32 vblank_min;
@@ -1054,7 +1131,7 @@ ov13b10_set_pad_format(struct v4l2_subdev *sd,
fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
mode = v4l2_find_nearest_size(supported_modes,
ARRAY_SIZE(supported_modes),
ov13b->supported_modes_num,
width, height,
fmt->format.width, fmt->format.height);
ov13b10_update_pad_format(mode, fmt);
@@ -1065,7 +1142,8 @@ ov13b10_set_pad_format(struct v4l2_subdev *sd,
ov13b->cur_mode = mode;
__v4l2_ctrl_s_ctrl(ov13b->link_freq, mode->link_freq_index);
link_freq = link_freq_menu_items[mode->link_freq_index];
pixel_rate = link_freq_to_pixel_rate(link_freq);
pixel_rate = link_freq_to_pixel_rate(link_freq,
ov13b->data_lanes);
__v4l2_ctrl_s_ctrl_int64(ov13b->pixel_rate, pixel_rate);
/* Update limits and set FPS to default */
@@ -1312,7 +1390,8 @@ static int ov13b10_init_controls(struct ov13b10 *ov13b)
if (ov13b->link_freq)
ov13b->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0],
ov13b->data_lanes);
pixel_rate_min = 0;
/* By default, PIXEL_RATE is read only */
ov13b->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
@@ -1423,7 +1502,7 @@ static int ov13b10_get_pm_resources(struct device *dev)
return 0;
}
static int ov13b10_check_hwcfg(struct device *dev)
static int ov13b10_check_hwcfg(struct device *dev, struct ov13b10 *ov13b)
{
struct v4l2_fwnode_endpoint bus_cfg = {
.bus_type = V4L2_MBUS_CSI2_DPHY
@@ -1433,6 +1512,7 @@ static int ov13b10_check_hwcfg(struct device *dev)
unsigned int i, j;
int ret;
u32 ext_clk;
u8 dlane;
if (!fwnode)
return -ENXIO;
@@ -1459,13 +1539,32 @@ static int ov13b10_check_hwcfg(struct device *dev)
if (ret)
return ret;
if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV13B10_DATA_LANES) {
dlane = bus_cfg.bus.mipi_csi2.num_data_lanes;
switch (dlane) {
case OV13B10_4_DATA_LANES:
ov13b->supported_modes = supported_4_lanes_modes;
ov13b->supported_modes_num =
ARRAY_SIZE(supported_4_lanes_modes);
break;
case OV13B10_2_DATA_LANES:
ov13b->supported_modes = supported_2_lanes_modes;
ov13b->supported_modes_num =
ARRAY_SIZE(supported_2_lanes_modes);
break;
default:
dev_err(dev, "number of CSI2 data lanes %d is not supported",
bus_cfg.bus.mipi_csi2.num_data_lanes);
dlane);
ret = -EINVAL;
goto out_err;
}
ov13b->data_lanes = dlane;
ov13b->cur_mode = ov13b->supported_modes;
dev_dbg(dev, "%u lanes with %u modes selected\n",
ov13b->data_lanes, ov13b->supported_modes_num);
if (!bus_cfg.nr_of_link_frequencies) {
dev_err(dev, "no link frequencies defined");
ret = -EINVAL;
@@ -1499,17 +1598,17 @@ static int ov13b10_probe(struct i2c_client *client)
bool full_power;
int ret;
ov13b = devm_kzalloc(&client->dev, sizeof(*ov13b), GFP_KERNEL);
if (!ov13b)
return -ENOMEM;
/* Check HW config */
ret = ov13b10_check_hwcfg(&client->dev);
ret = ov13b10_check_hwcfg(&client->dev, ov13b);
if (ret) {
dev_err(&client->dev, "failed to check hwcfg: %d", ret);
return ret;
}
ov13b = devm_kzalloc(&client->dev, sizeof(*ov13b), GFP_KERNEL);
if (!ov13b)
return -ENOMEM;
/* Initialize subdev */
v4l2_i2c_subdev_init(&ov13b->sd, client, &ov13b10_subdev_ops);
@@ -1533,9 +1632,6 @@ static int ov13b10_probe(struct i2c_client *client)
}
}
/* Set default mode to max resolution */
ov13b->cur_mode = &supported_modes[0];
ret = ov13b10_init_controls(ov13b);
if (ret)
goto error_power_off;