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path: root/drivers/media/i2c/ov8856.c
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Diffstat (limited to 'drivers/media/i2c/ov8856.c')
-rw-r--r--drivers/media/i2c/ov8856.c83
1 files changed, 72 insertions, 11 deletions
diff --git a/drivers/media/i2c/ov8856.c b/drivers/media/i2c/ov8856.c
index aa74744b91c7..c6c6050cda1a 100644
--- a/drivers/media/i2c/ov8856.c
+++ b/drivers/media/i2c/ov8856.c
@@ -107,6 +107,11 @@ static const char * const ov8856_supply_names[] = {
"dvdd", /* Digital core power */
};
+enum {
+ OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,
+ OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,
+};
+
struct ov8856_reg {
u16 address;
u8 val;
@@ -145,6 +150,9 @@ struct ov8856_mode {
/* Number of data lanes */
u8 data_lanes;
+
+ /* Default MEDIA_BUS_FMT for this mode */
+ u32 default_mbus_index;
};
struct ov8856_mipi_data_rates {
@@ -1055,7 +1063,7 @@ static const struct ov8856_reg lane_4_mode_3264x2448[] = {
{0x3810, 0x00},
{0x3811, 0x04},
{0x3812, 0x00},
- {0x3813, 0x01},
+ {0x3813, 0x02},
{0x3814, 0x01},
{0x3815, 0x01},
{0x3816, 0x00},
@@ -1259,7 +1267,7 @@ static const struct ov8856_reg lane_4_mode_1632x1224[] = {
{0x3810, 0x00},
{0x3811, 0x02},
{0x3812, 0x00},
- {0x3813, 0x01},
+ {0x3813, 0x02},
{0x3814, 0x03},
{0x3815, 0x01},
{0x3816, 0x00},
@@ -1372,6 +1380,19 @@ static const struct ov8856_reg lane_4_mode_1632x1224[] = {
{0x5e10, 0xfc}
};
+static const struct ov8856_reg mipi_data_mbus_sbggr10_1x10[] = {
+ {0x3813, 0x02},
+};
+
+static const struct ov8856_reg mipi_data_mbus_sgrbg10_1x10[] = {
+ {0x3813, 0x01},
+};
+
+static const u32 ov8856_mbus_codes[] = {
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10
+};
+
static const char * const ov8856_test_pattern_menu[] = {
"Disabled",
"Standard Color Bar",
@@ -1380,6 +1401,17 @@ static const char * const ov8856_test_pattern_menu[] = {
"Bottom-Top Darker Color Bar"
};
+static const struct ov8856_reg_list bayer_offset_configs[] = {
+ [OV8856_MEDIA_BUS_FMT_SBGGR10_1X10] = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_mbus_sbggr10_1x10),
+ .regs = mipi_data_mbus_sbggr10_1x10,
+ },
+ [OV8856_MEDIA_BUS_FMT_SGRBG10_1X10] = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_mbus_sgrbg10_1x10),
+ .regs = mipi_data_mbus_sgrbg10_1x10,
+ }
+};
+
struct ov8856 {
struct v4l2_subdev sd;
struct media_pad pad;
@@ -1399,6 +1431,9 @@ struct ov8856 {
/* Current mode */
const struct ov8856_mode *cur_mode;
+ /* Application specified mbus format */
+ u32 cur_mbus_index;
+
/* To serialize asynchronus callbacks */
struct mutex mutex;
@@ -1450,6 +1485,7 @@ static const struct ov8856_lane_cfg lane_cfg_2 = {
},
.link_freq_index = 0,
.data_lanes = 2,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,
},
{
.width = 1640,
@@ -1464,6 +1500,7 @@ static const struct ov8856_lane_cfg lane_cfg_2 = {
},
.link_freq_index = 1,
.data_lanes = 2,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,
}}
};
@@ -1499,6 +1536,7 @@ static const struct ov8856_lane_cfg lane_cfg_4 = {
},
.link_freq_index = 0,
.data_lanes = 4,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,
},
{
.width = 1640,
@@ -1513,6 +1551,7 @@ static const struct ov8856_lane_cfg lane_cfg_4 = {
},
.link_freq_index = 1,
.data_lanes = 4,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,
},
{
.width = 3264,
@@ -1527,6 +1566,7 @@ static const struct ov8856_lane_cfg lane_cfg_4 = {
},
.link_freq_index = 0,
.data_lanes = 4,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,
},
{
.width = 1632,
@@ -1541,6 +1581,7 @@ static const struct ov8856_lane_cfg lane_cfg_4 = {
},
.link_freq_index = 1,
.data_lanes = 4,
+ .default_mbus_index = OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,
}}
};
@@ -1904,12 +1945,21 @@ static int ov8856_init_controls(struct ov8856 *ov8856)
return 0;
}
-static void ov8856_update_pad_format(const struct ov8856_mode *mode,
+static void ov8856_update_pad_format(struct ov8856 *ov8856,
+ const struct ov8856_mode *mode,
struct v4l2_mbus_framefmt *fmt)
{
+ int index;
+
fmt->width = mode->width;
fmt->height = mode->height;
- fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ for (index = 0; index < ARRAY_SIZE(ov8856_mbus_codes); ++index)
+ if (ov8856_mbus_codes[index] == fmt->code)
+ break;
+ if (index == ARRAY_SIZE(ov8856_mbus_codes))
+ index = mode->default_mbus_index;
+ fmt->code = ov8856_mbus_codes[index];
+ ov8856->cur_mbus_index = index;
fmt->field = V4L2_FIELD_NONE;
}
@@ -1935,6 +1985,13 @@ static int ov8856_start_streaming(struct ov8856 *ov8856)
return ret;
}
+ reg_list = &bayer_offset_configs[ov8856->cur_mbus_index];
+ ret = ov8856_write_reg_list(ov8856, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set mbus format");
+ return ret;
+ }
+
ret = __v4l2_ctrl_handler_setup(ov8856->sd.ctrl_handler);
if (ret)
return ret;
@@ -2096,7 +2153,7 @@ static int ov8856_set_format(struct v4l2_subdev *sd,
fmt->format.height);
mutex_lock(&ov8856->mutex);
- ov8856_update_pad_format(mode, &fmt->format);
+ ov8856_update_pad_format(ov8856, mode, &fmt->format);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
*v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
} else {
@@ -2140,7 +2197,7 @@ static int ov8856_get_format(struct v4l2_subdev *sd,
sd_state,
fmt->pad);
else
- ov8856_update_pad_format(ov8856->cur_mode, &fmt->format);
+ ov8856_update_pad_format(ov8856, ov8856->cur_mode, &fmt->format);
mutex_unlock(&ov8856->mutex);
@@ -2151,11 +2208,10 @@ static int ov8856_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
- /* Only one bayer order GRBG is supported */
- if (code->index > 0)
+ if (code->index >= ARRAY_SIZE(ov8856_mbus_codes))
return -EINVAL;
- code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ code->code = ov8856_mbus_codes[code->index];
return 0;
}
@@ -2165,11 +2221,15 @@ static int ov8856_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_size_enum *fse)
{
struct ov8856 *ov8856 = to_ov8856(sd);
+ int index;
if (fse->index >= ov8856->modes_size)
return -EINVAL;
- if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
+ for (index = 0; index < ARRAY_SIZE(ov8856_mbus_codes); ++index)
+ if (fse->code == ov8856_mbus_codes[index])
+ break;
+ if (index == ARRAY_SIZE(ov8856_mbus_codes))
return -EINVAL;
fse->min_width = ov8856->priv_lane->supported_modes[fse->index].width;
@@ -2185,7 +2245,7 @@ static int ov8856_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
struct ov8856 *ov8856 = to_ov8856(sd);
mutex_lock(&ov8856->mutex);
- ov8856_update_pad_format(&ov8856->priv_lane->supported_modes[0],
+ ov8856_update_pad_format(ov8856, &ov8856->priv_lane->supported_modes[0],
v4l2_subdev_get_try_format(sd, fh->state, 0));
mutex_unlock(&ov8856->mutex);
@@ -2426,6 +2486,7 @@ static int ov8856_probe(struct i2c_client *client)
mutex_init(&ov8856->mutex);
ov8856->cur_mode = &ov8856->priv_lane->supported_modes[0];
+ ov8856->cur_mbus_index = ov8856->cur_mode->default_mbus_index;
ret = ov8856_init_controls(ov8856);
if (ret) {
dev_err(&client->dev, "failed to init controls: %d", ret);
generated by cgit (git 2.34.1) at 2024-06-07 18:56:45 +0000