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path: root/drivers/media/i2c/ov2680.c
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Diffstat (limited to 'drivers/media/i2c/ov2680.c')
-rw-r--r--drivers/media/i2c/ov2680.c334
1 files changed, 157 insertions, 177 deletions
diff --git a/drivers/media/i2c/ov2680.c b/drivers/media/i2c/ov2680.c
index 76f97d053e45..012b95f90c1d 100644
--- a/drivers/media/i2c/ov2680.c
+++ b/drivers/media/i2c/ov2680.c
@@ -38,27 +38,48 @@
#define OV2680_REG_EXPOSURE_PK CCI_REG24(0x3500)
#define OV2680_REG_R_MANUAL CCI_REG8(0x3503)
#define OV2680_REG_GAIN_PK CCI_REG16(0x350a)
+
+#define OV2680_REG_SENSOR_CTRL_0A CCI_REG8(0x370a)
+
+#define OV2680_REG_HORIZONTAL_START CCI_REG16(0x3800)
+#define OV2680_REG_VERTICAL_START CCI_REG16(0x3802)
+#define OV2680_REG_HORIZONTAL_END CCI_REG16(0x3804)
+#define OV2680_REG_VERTICAL_END CCI_REG16(0x3806)
+#define OV2680_REG_HORIZONTAL_OUTPUT_SIZE CCI_REG16(0x3808)
+#define OV2680_REG_VERTICAL_OUTPUT_SIZE CCI_REG16(0x380a)
#define OV2680_REG_TIMING_HTS CCI_REG16(0x380c)
#define OV2680_REG_TIMING_VTS CCI_REG16(0x380e)
+#define OV2680_REG_ISP_X_WIN CCI_REG16(0x3810)
+#define OV2680_REG_ISP_Y_WIN CCI_REG16(0x3812)
+#define OV2680_REG_X_INC CCI_REG8(0x3814)
+#define OV2680_REG_Y_INC CCI_REG8(0x3815)
#define OV2680_REG_FORMAT1 CCI_REG8(0x3820)
#define OV2680_REG_FORMAT2 CCI_REG8(0x3821)
#define OV2680_REG_ISP_CTRL00 CCI_REG8(0x5080)
+#define OV2680_REG_X_WIN CCI_REG16(0x5704)
+#define OV2680_REG_Y_WIN CCI_REG16(0x5706)
+
#define OV2680_FRAME_RATE 30
-#define OV2680_WIDTH_MAX 1600
-#define OV2680_HEIGHT_MAX 1200
+#define OV2680_NATIVE_WIDTH 1616
+#define OV2680_NATIVE_HEIGHT 1216
+#define OV2680_ACTIVE_WIDTH 1600
+#define OV2680_ACTIVE_HEIGHT 1200
+
+/* 66MHz pixel clock: 66MHz / 1704 * 1294 = 30fps */
+#define OV2680_PIXELS_PER_LINE 1704
+#define OV2680_LINES_PER_FRAME 1294
+
+/* If possible send 16 extra rows / lines to the ISP as padding */
+#define OV2680_END_MARGIN 16
#define OV2680_DEFAULT_WIDTH 800
#define OV2680_DEFAULT_HEIGHT 600
-enum ov2680_mode_id {
- OV2680_MODE_QUXGA_800_600,
- OV2680_MODE_720P_1280_720,
- OV2680_MODE_UXGA_1600_1200,
- OV2680_MODE_MAX,
-};
+/* For enum_frame_size() full-size + binned-/quarter-size */
+#define OV2680_FRAME_SIZES 2
static const char * const ov2680_supply_name[] = {
"DOVDD",
@@ -83,15 +104,6 @@ static const u8 ov2680_pll_multipliers[] = {
[OV2680_24_MHZ] = 55,
};
-struct ov2680_mode_info {
- const char *name;
- enum ov2680_mode_id id;
- u32 width;
- u32 height;
- const struct reg_sequence *reg_data;
- u32 reg_data_size;
-};
-
struct ov2680_ctrls {
struct v4l2_ctrl_handler handler;
struct v4l2_ctrl *exposure;
@@ -104,6 +116,15 @@ struct ov2680_ctrls {
struct ov2680_mode {
struct v4l2_mbus_framefmt fmt;
struct v4l2_fract frame_interval;
+ bool binning;
+ u16 h_start;
+ u16 v_start;
+ u16 h_end;
+ u16 v_end;
+ u16 h_output_size;
+ u16 v_output_size;
+ u16 hts;
+ u16 vts;
};
struct ov2680_dev {
@@ -124,8 +145,6 @@ struct ov2680_dev {
struct ov2680_ctrls ctrls;
struct ov2680_mode mode;
-
- const struct ov2680_mode_info *current_mode;
};
static const char * const test_pattern_menu[] = {
@@ -143,136 +162,19 @@ static const int ov2680_hv_flip_bayer_order[] = {
MEDIA_BUS_FMT_SRGGB10_1X10,
};
-static const struct reg_sequence ov2680_setting_30fps_QUXGA_800_600[] = {
- /* Set PLL SP DIV to 1 for binning mode */
- {0x3086, 0x01},
-
- /* Sensor control register 0x0a to 0x23 for binning mode */
- {0x370a, 0x23},
-
- /* Set X and Y output size to 800x600 */
- {0x3808, 0x03},
- {0x3809, 0x20},
- {0x380a, 0x02},
- {0x380b, 0x58},
-
- /* Set HTS + VTS to 1708x644 */
- {0x380c, 0x06},
- {0x380d, 0xac},
- {0x380e, 0x02},
- {0x380f, 0x84},
-
- /* Set ISP WIN X and Y start to 4x4 */
- {0x3811, 0x04},
- {0x3813, 0x04},
-
- /* Set X INC and Y INC for binning */
- {0x3814, 0x31},
- {0x3815, 0x31},
-
- /* Initialize FORMAT1 to default/reset value (vflip disabled) */
- {0x3820, 0xc0},
-
- /* Set black level compensation range to 0 - 3 (default 0 - 11) */
- {0x4008, 0x00},
- {0x4009, 0x03},
-
- /* Set MIPI pclk period to 0x1e (default/reset is 0x18) */
- {0x4837, 0x1e},
-
- /* Initialize exposure to 0x4ee (overridden by the ctrl, drop this */
- {0x3501, 0x4e},
- {0x3502, 0xe0},
-
+static const struct reg_sequence ov2680_global_setting[] = {
/* R MANUAL set exposure and gain to manual (hw does not do auto) */
{0x3503, 0x03},
-};
-
-static const struct reg_sequence ov2680_setting_30fps_720P_1280_720[] = {
- /* Set PLL SP DIV to 0 for not binning mode */
- {0x3086, 0x00},
-
- /* Set X and Y output size to 1280x720 */
- {0x3808, 0x05},
- {0x3809, 0x00},
- {0x380a, 0x02},
- {0x380b, 0xd0},
-
- /* Set HTS + VTS to 1704x1294 */
- {0x380c, 0x06},
- {0x380d, 0xa8},
- {0x380e, 0x05},
- {0x380f, 0x0e},
-
- /* Set ISP WIN X and Y start to 8x6 */
- {0x3811, 0x08},
- {0x3813, 0x06},
-
- /* Set X INC and Y INC for non binning */
- {0x3814, 0x11},
- {0x3815, 0x11},
-
- /* Initialize FORMAT1 to default/reset value (vflip disabled) */
- {0x3820, 0xc0},
-
- /* Set backlight compensation range start to 0 */
- {0x4008, 0x00},
-};
-
-static const struct reg_sequence ov2680_setting_30fps_UXGA_1600_1200[] = {
- /* Set PLL SP DIV to 0 for not binning mode */
- {0x3086, 0x00},
-
- /* Initialize exposure to 0x4ee (overridden by the ctrl, drop this */
- {0x3501, 0x4e},
- {0x3502, 0xe0},
-
- /* Set X and Y output size to 1600x1200 */
- {0x3808, 0x06},
- {0x3809, 0x40},
- {0x380a, 0x04},
- {0x380b, 0xb0},
-
- /* Set HTS + VTS to 1704x1294 */
- {0x380c, 0x06},
- {0x380d, 0xa8},
- {0x380e, 0x05},
- {0x380f, 0x0e},
- /* Set ISP WIN X and Y start to 0x0 */
- {0x3811, 0x00},
- {0x3813, 0x00},
-
- /* Set X INC and Y INC for non binning */
- {0x3814, 0x11},
- {0x3815, 0x11},
-
- /* Initialize FORMAT1 to default/reset value (vflip disabled) */
- {0x3820, 0xc0},
-
- /* Set backlight compensation range start to 0 */
+ /* Set black level compensation range to 0 - 3 (default 0 - 11) */
{0x4008, 0x00},
+ {0x4009, 0x03},
- /* Set MIPI pclk period to default/reset value of 0x18 */
- {0x4837, 0x18}
-};
-
-static const struct ov2680_mode_info ov2680_mode_init_data = {
- "mode_quxga_800_600", OV2680_MODE_QUXGA_800_600, 800, 600,
- ov2680_setting_30fps_QUXGA_800_600,
- ARRAY_SIZE(ov2680_setting_30fps_QUXGA_800_600),
-};
-
-static const struct ov2680_mode_info ov2680_mode_data[OV2680_MODE_MAX] = {
- {"mode_quxga_800_600", OV2680_MODE_QUXGA_800_600,
- 800, 600, ov2680_setting_30fps_QUXGA_800_600,
- ARRAY_SIZE(ov2680_setting_30fps_QUXGA_800_600)},
- {"mode_720p_1280_720", OV2680_MODE_720P_1280_720,
- 1280, 720, ov2680_setting_30fps_720P_1280_720,
- ARRAY_SIZE(ov2680_setting_30fps_720P_1280_720)},
- {"mode_uxga_1600_1200", OV2680_MODE_UXGA_1600_1200,
- 1600, 1200, ov2680_setting_30fps_UXGA_1600_1200,
- ARRAY_SIZE(ov2680_setting_30fps_UXGA_1600_1200)},
+ /*
+ * Window CONTROL 0x00 -> 0x01, enable manual window control,
+ * this is necessary for full size flip and mirror support.
+ */
+ {0x5708, 0x01},
};
static struct ov2680_dev *to_ov2680_dev(struct v4l2_subdev *sd)
@@ -330,6 +232,85 @@ static void ov2680_fill_format(struct ov2680_dev *sensor,
ov2680_set_bayer_order(sensor, fmt);
}
+static void ov2680_calc_mode(struct ov2680_dev *sensor)
+{
+ int width = sensor->mode.fmt.width;
+ int height = sensor->mode.fmt.height;
+ int orig_width = width;
+ int orig_height = height;
+
+ if (width <= (OV2680_NATIVE_WIDTH / 2) &&
+ height <= (OV2680_NATIVE_HEIGHT / 2)) {
+ sensor->mode.binning = true;
+ width *= 2;
+ height *= 2;
+ } else {
+ sensor->mode.binning = false;
+ }
+
+ sensor->mode.h_start = ((OV2680_NATIVE_WIDTH - width) / 2) & ~1;
+ sensor->mode.v_start = ((OV2680_NATIVE_HEIGHT - height) / 2) & ~1;
+ sensor->mode.h_end =
+ min(sensor->mode.h_start + width + OV2680_END_MARGIN - 1,
+ OV2680_NATIVE_WIDTH - 1);
+ sensor->mode.v_end =
+ min(sensor->mode.v_start + height + OV2680_END_MARGIN - 1,
+ OV2680_NATIVE_HEIGHT - 1);
+ sensor->mode.h_output_size = orig_width;
+ sensor->mode.v_output_size = orig_height;
+ sensor->mode.hts = OV2680_PIXELS_PER_LINE;
+ sensor->mode.vts = OV2680_LINES_PER_FRAME;
+}
+
+static int ov2680_set_mode(struct ov2680_dev *sensor)
+{
+ u8 sensor_ctrl_0a, inc, fmt1, fmt2;
+ int ret = 0;
+
+ if (sensor->mode.binning) {
+ sensor_ctrl_0a = 0x23;
+ inc = 0x31;
+ fmt1 = 0xc2;
+ fmt2 = 0x01;
+ } else {
+ sensor_ctrl_0a = 0x21;
+ inc = 0x11;
+ fmt1 = 0xc0;
+ fmt2 = 0x00;
+ }
+
+ cci_write(sensor->regmap, OV2680_REG_SENSOR_CTRL_0A,
+ sensor_ctrl_0a, &ret);
+ cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_START,
+ sensor->mode.h_start, &ret);
+ cci_write(sensor->regmap, OV2680_REG_VERTICAL_START,
+ sensor->mode.v_start, &ret);
+ cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_END,
+ sensor->mode.h_end, &ret);
+ cci_write(sensor->regmap, OV2680_REG_VERTICAL_END,
+ sensor->mode.v_end, &ret);
+ cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_OUTPUT_SIZE,
+ sensor->mode.h_output_size, &ret);
+ cci_write(sensor->regmap, OV2680_REG_VERTICAL_OUTPUT_SIZE,
+ sensor->mode.v_output_size, &ret);
+ cci_write(sensor->regmap, OV2680_REG_TIMING_HTS,
+ sensor->mode.hts, &ret);
+ cci_write(sensor->regmap, OV2680_REG_TIMING_VTS,
+ sensor->mode.vts, &ret);
+ cci_write(sensor->regmap, OV2680_REG_ISP_X_WIN, 0, &ret);
+ cci_write(sensor->regmap, OV2680_REG_ISP_Y_WIN, 0, &ret);
+ cci_write(sensor->regmap, OV2680_REG_X_INC, inc, &ret);
+ cci_write(sensor->regmap, OV2680_REG_Y_INC, inc, &ret);
+ cci_write(sensor->regmap, OV2680_REG_X_WIN,
+ sensor->mode.h_output_size, &ret);
+ cci_write(sensor->regmap, OV2680_REG_Y_WIN,
+ sensor->mode.v_output_size, &ret);
+ cci_write(sensor->regmap, OV2680_REG_FORMAT1, fmt1, &ret);
+ cci_write(sensor->regmap, OV2680_REG_FORMAT2, fmt2, &ret);
+
+ return ret;
+}
+
static int ov2680_set_vflip(struct ov2680_dev *sensor, s32 val)
{
int ret;
@@ -399,14 +380,12 @@ static int ov2680_stream_enable(struct ov2680_dev *sensor)
return ret;
ret = regmap_multi_reg_write(sensor->regmap,
- ov2680_mode_init_data.reg_data,
- ov2680_mode_init_data.reg_data_size);
+ ov2680_global_setting,
+ ARRAY_SIZE(ov2680_global_setting));
if (ret < 0)
return ret;
- ret = regmap_multi_reg_write(sensor->regmap,
- sensor->current_mode->reg_data,
- sensor->current_mode->reg_data_size);
+ ret = ov2680_set_mode(sensor);
if (ret < 0)
return ret;
@@ -556,21 +535,18 @@ static int ov2680_set_fmt(struct v4l2_subdev *sd,
{
struct ov2680_dev *sensor = to_ov2680_dev(sd);
struct v4l2_mbus_framefmt *try_fmt;
- const struct ov2680_mode_info *mode;
+ unsigned int width, height;
int ret = 0;
if (format->pad != 0)
return -EINVAL;
- mode = v4l2_find_nearest_size(ov2680_mode_data,
- ARRAY_SIZE(ov2680_mode_data),
- width, height,
- format->format.width,
- format->format.height);
- if (!mode)
- return -EINVAL;
+ width = min_t(unsigned int, ALIGN(format->format.width, 2),
+ OV2680_NATIVE_WIDTH);
+ height = min_t(unsigned int, ALIGN(format->format.height, 2),
+ OV2680_NATIVE_HEIGHT);
- ov2680_fill_format(sensor, &format->format, mode->width, mode->height);
+ ov2680_fill_format(sensor, &format->format, width, height);
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
try_fmt = v4l2_subdev_get_try_format(sd, sd_state, 0);
@@ -585,8 +561,8 @@ static int ov2680_set_fmt(struct v4l2_subdev *sd,
goto unlock;
}
- sensor->current_mode = mode;
sensor->mode.fmt = format->format;
+ ov2680_calc_mode(sensor);
unlock:
mutex_unlock(&sensor->lock);
@@ -608,26 +584,35 @@ static int ov2680_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
- int index = fse->index;
-
- if (index >= OV2680_MODE_MAX || index < 0)
+ if (fse->index >= OV2680_FRAME_SIZES)
return -EINVAL;
- fse->min_width = ov2680_mode_data[index].width;
- fse->min_height = ov2680_mode_data[index].height;
- fse->max_width = ov2680_mode_data[index].width;
- fse->max_height = ov2680_mode_data[index].height;
+ fse->min_width = OV2680_ACTIVE_WIDTH / (fse->index + 1);
+ fse->min_height = OV2680_ACTIVE_HEIGHT / (fse->index + 1);
+ fse->max_width = fse->min_width;
+ fse->max_height = fse->min_height;
return 0;
}
-static bool ov2680_valid_frame_size(struct v4l2_subdev_frame_interval_enum *fie)
+static bool ov2680_valid_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_interval_enum *fie)
{
+ struct v4l2_subdev_frame_size_enum fse = {
+ .pad = fie->pad,
+ .which = fie->which,
+ };
int i;
- for (i = 0; i < OV2680_MODE_MAX; i++) {
- if (fie->width == ov2680_mode_data[i].width &&
- fie->height == ov2680_mode_data[i].height)
+ for (i = 0; i < OV2680_FRAME_SIZES; i++) {
+ fse.index = i;
+
+ if (ov2680_enum_frame_size(sd, sd_state, &fse))
+ return false;
+
+ if (fie->width == fse.min_width &&
+ fie->height == fse.min_height)
return true;
}
@@ -641,7 +626,7 @@ static int ov2680_enum_frame_interval(struct v4l2_subdev *sd,
struct ov2680_dev *sensor = to_ov2680_dev(sd);
/* Only 1 framerate */
- if (fie->index || !ov2680_valid_frame_size(fie))
+ if (fie->index || !ov2680_valid_frame_size(sd, sd_state, fie))
return -EINVAL;
fie->interval = sensor->mode.frame_interval;
@@ -712,19 +697,14 @@ static const struct v4l2_subdev_ops ov2680_subdev_ops = {
static int ov2680_mode_init(struct ov2680_dev *sensor)
{
- const struct ov2680_mode_info *init_mode;
-
/* set initial mode */
ov2680_fill_format(sensor, &sensor->mode.fmt,
OV2680_DEFAULT_WIDTH, OV2680_DEFAULT_HEIGHT);
+ ov2680_calc_mode(sensor);
sensor->mode.frame_interval.denominator = OV2680_FRAME_RATE;
sensor->mode.frame_interval.numerator = 1;
- init_mode = &ov2680_mode_init_data;
-
- sensor->current_mode = init_mode;
-
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-31 11:04:47 +0100