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path: root/drivers/media/i2c/ov9282.c
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Diffstat (limited to 'drivers/media/i2c/ov9282.c')
-rw-r--r--drivers/media/i2c/ov9282.c611
1 files changed, 503 insertions, 108 deletions
diff --git a/drivers/media/i2c/ov9282.c b/drivers/media/i2c/ov9282.c
index df144a2f6eda..37a55d53af56 100644
--- a/drivers/media/i2c/ov9282.c
+++ b/drivers/media/i2c/ov9282.c
@@ -11,8 +11,10 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
@@ -21,6 +23,13 @@
#define OV9282_MODE_STANDBY 0x00
#define OV9282_MODE_STREAMING 0x01
+#define OV9282_REG_PLL_CTRL_0D 0x030d
+#define OV9282_PLL_CTRL_0D_RAW8 0x60
+#define OV9282_PLL_CTRL_0D_RAW10 0x50
+
+#define OV9282_REG_TIMING_HTS 0x380c
+#define OV9282_TIMING_HTS_MAX 0x7fff
+
/* Lines per frame */
#define OV9282_REG_LPFR 0x380e
@@ -45,6 +54,17 @@
/* Group hold register */
#define OV9282_REG_HOLD 0x3308
+#define OV9282_REG_ANA_CORE_2 0x3662
+#define OV9282_ANA_CORE2_RAW8 0x07
+#define OV9282_ANA_CORE2_RAW10 0x05
+
+#define OV9282_REG_TIMING_FORMAT_1 0x3820
+#define OV9282_REG_TIMING_FORMAT_2 0x3821
+#define OV9282_FLIP_BIT BIT(2)
+
+#define OV9282_REG_MIPI_CTRL00 0x4800
+#define OV9282_GATED_CLOCK BIT(5)
+
/* Input clock rate */
#define OV9282_INCLK_RATE 24000000
@@ -52,9 +72,34 @@
#define OV9282_LINK_FREQ 400000000
#define OV9282_NUM_DATA_LANES 2
+/* Pixel rate */
+#define OV9282_PIXEL_RATE_10BIT (OV9282_LINK_FREQ * 2 * \
+ OV9282_NUM_DATA_LANES / 10)
+#define OV9282_PIXEL_RATE_8BIT (OV9282_LINK_FREQ * 2 * \
+ OV9282_NUM_DATA_LANES / 8)
+
+/*
+ * OV9282 native and active pixel array size.
+ * 8 dummy rows/columns on each edge of a 1280x800 active array
+ */
+#define OV9282_NATIVE_WIDTH 1296U
+#define OV9282_NATIVE_HEIGHT 816U
+#define OV9282_PIXEL_ARRAY_LEFT 8U
+#define OV9282_PIXEL_ARRAY_TOP 8U
+#define OV9282_PIXEL_ARRAY_WIDTH 1280U
+#define OV9282_PIXEL_ARRAY_HEIGHT 800U
+
#define OV9282_REG_MIN 0x00
#define OV9282_REG_MAX 0xfffff
+static const char * const ov9282_supply_names[] = {
+ "avdd", /* Analog power */
+ "dovdd", /* Digital I/O power */
+ "dvdd", /* Digital core power */
+};
+
+#define OV9282_NUM_SUPPLIES ARRAY_SIZE(ov9282_supply_names)
+
/**
* struct ov9282_reg - ov9282 sensor register
* @address: Register address
@@ -79,25 +124,24 @@ struct ov9282_reg_list {
* struct ov9282_mode - ov9282 sensor mode structure
* @width: Frame width
* @height: Frame height
- * @code: Format code
- * @hblank: Horizontal blanking in lines
+ * @hblank_min: Minimum horizontal blanking in lines for non-continuous[0] and
+ * continuous[1] clock modes
* @vblank: Vertical blanking in lines
* @vblank_min: Minimum vertical blanking in lines
* @vblank_max: Maximum vertical blanking in lines
- * @pclk: Sensor pixel clock
* @link_freq_idx: Link frequency index
+ * @crop: on-sensor cropping for this mode
* @reg_list: Register list for sensor mode
*/
struct ov9282_mode {
u32 width;
u32 height;
- u32 code;
- u32 hblank;
+ u32 hblank_min[2];
u32 vblank;
u32 vblank_min;
u32 vblank_max;
- u64 pclk;
u32 link_freq_idx;
+ struct v4l2_rect crop;
struct ov9282_reg_list reg_list;
};
@@ -109,15 +153,18 @@ struct ov9282_mode {
* @pad: Media pad. Only one pad supported
* @reset_gpio: Sensor reset gpio
* @inclk: Sensor input clock
+ * @supplies: Regulator supplies for the sensor
* @ctrl_handler: V4L2 control handler
* @link_freq_ctrl: Pointer to link frequency control
- * @pclk_ctrl: Pointer to pixel clock control
* @hblank_ctrl: Pointer to horizontal blanking control
* @vblank_ctrl: Pointer to vertical blanking control
* @exp_ctrl: Pointer to exposure control
* @again_ctrl: Pointer to analog gain control
+ * @pixel_rate: Pointer to pixel rate control
* @vblank: Vertical blanking in lines
+ * @noncontinuous_clock: Selection of CSI2 noncontinuous clock mode
* @cur_mode: Pointer to current selected sensor mode
+ * @code: Mbus code currently selected
* @mutex: Mutex for serializing sensor controls
* @streaming: Flag indicating streaming state
*/
@@ -128,17 +175,20 @@ struct ov9282 {
struct media_pad pad;
struct gpio_desc *reset_gpio;
struct clk *inclk;
+ struct regulator_bulk_data supplies[OV9282_NUM_SUPPLIES];
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *link_freq_ctrl;
- struct v4l2_ctrl *pclk_ctrl;
struct v4l2_ctrl *hblank_ctrl;
struct v4l2_ctrl *vblank_ctrl;
struct {
struct v4l2_ctrl *exp_ctrl;
struct v4l2_ctrl *again_ctrl;
};
+ struct v4l2_ctrl *pixel_rate;
u32 vblank;
+ bool noncontinuous_clock;
const struct ov9282_mode *cur_mode;
+ u32 code;
struct mutex mutex;
bool streaming;
};
@@ -147,10 +197,15 @@ static const s64 link_freq[] = {
OV9282_LINK_FREQ,
};
-/* Sensor mode registers */
-static const struct ov9282_reg mode_1280x720_regs[] = {
+/*
+ * Common registers
+ *
+ * Note: Do NOT include a software reset (0x0103, 0x01) in any of these
+ * register arrays as some settings are written as part of ov9282_power_on,
+ * and the reset will clear them.
+ */
+static const struct ov9282_reg common_regs[] = {
{0x0302, 0x32},
- {0x030d, 0x50},
{0x030e, 0x02},
{0x3001, 0x00},
{0x3004, 0x00},
@@ -163,14 +218,10 @@ static const struct ov9282_reg mode_1280x720_regs[] = {
{0x3030, 0x10},
{0x3039, 0x32},
{0x303a, 0x00},
- {0x3500, 0x00},
- {0x3501, 0x5f},
- {0x3502, 0x1e},
{0x3503, 0x08},
{0x3505, 0x8c},
{0x3507, 0x03},
{0x3508, 0x00},
- {0x3509, 0x10},
{0x3610, 0x80},
{0x3611, 0xa0},
{0x3620, 0x6e},
@@ -183,13 +234,85 @@ static const struct ov9282_reg mode_1280x720_regs[] = {
{0x372d, 0x22},
{0x3731, 0x80},
{0x3732, 0x30},
- {0x3778, 0x00},
{0x377d, 0x22},
{0x3788, 0x02},
{0x3789, 0xa4},
{0x378a, 0x00},
{0x378b, 0x4a},
{0x3799, 0x20},
+ {0x3881, 0x42},
+ {0x38a8, 0x02},
+ {0x38a9, 0x80},
+ {0x38b1, 0x00},
+ {0x38c4, 0x00},
+ {0x38c5, 0xc0},
+ {0x38c6, 0x04},
+ {0x38c7, 0x80},
+ {0x3920, 0xff},
+ {0x4010, 0x40},
+ {0x4043, 0x40},
+ {0x4307, 0x30},
+ {0x4317, 0x00},
+ {0x4501, 0x00},
+ {0x450a, 0x08},
+ {0x4601, 0x04},
+ {0x470f, 0x00},
+ {0x4f07, 0x00},
+ {0x5000, 0x9f},
+ {0x5001, 0x00},
+ {0x5e00, 0x00},
+ {0x5d00, 0x07},
+ {0x5d01, 0x00},
+ {0x0101, 0x01},
+ {0x1000, 0x03},
+ {0x5a08, 0x84},
+};
+
+static struct ov9282_reg_list common_regs_list = {
+ .num_of_regs = ARRAY_SIZE(common_regs),
+ .regs = common_regs,
+};
+
+#define MODE_1280_800 0
+#define MODE_1280_720 1
+#define MODE_640_400 2
+
+#define DEFAULT_MODE MODE_1280_720
+
+/* Sensor mode registers */
+static const struct ov9282_reg mode_1280x800_regs[] = {
+ {0x3778, 0x00},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x05},
+ {0x3809, 0x00},
+ {0x380a, 0x03},
+ {0x380b, 0x20},
+ {0x3810, 0x00},
+ {0x3811, 0x08},
+ {0x3812, 0x00},
+ {0x3813, 0x08},
+ {0x3814, 0x11},
+ {0x3815, 0x11},
+ {0x3820, 0x40},
+ {0x3821, 0x00},
+ {0x4003, 0x40},
+ {0x4008, 0x04},
+ {0x4009, 0x0b},
+ {0x400c, 0x00},
+ {0x400d, 0x07},
+ {0x4507, 0x00},
+ {0x4509, 0x00},
+};
+
+static const struct ov9282_reg mode_1280x720_regs[] = {
+ {0x3778, 0x00},
{0x3800, 0x00},
{0x3801, 0x00},
{0x3802, 0x00},
@@ -202,10 +325,6 @@ static const struct ov9282_reg mode_1280x720_regs[] = {
{0x3809, 0x00},
{0x380a, 0x02},
{0x380b, 0xd0},
- {0x380c, 0x05},
- {0x380d, 0xfa},
- {0x380e, 0x06},
- {0x380f, 0xce},
{0x3810, 0x00},
{0x3811, 0x08},
{0x3812, 0x00},
@@ -214,56 +333,107 @@ static const struct ov9282_reg mode_1280x720_regs[] = {
{0x3815, 0x11},
{0x3820, 0x3c},
{0x3821, 0x84},
- {0x3881, 0x42},
- {0x38a8, 0x02},
- {0x38a9, 0x80},
- {0x38b1, 0x00},
- {0x38c4, 0x00},
- {0x38c5, 0xc0},
- {0x38c6, 0x04},
- {0x38c7, 0x80},
- {0x3920, 0xff},
{0x4003, 0x40},
{0x4008, 0x02},
{0x4009, 0x05},
{0x400c, 0x00},
{0x400d, 0x03},
- {0x4010, 0x40},
- {0x4043, 0x40},
- {0x4307, 0x30},
- {0x4317, 0x00},
- {0x4501, 0x00},
{0x4507, 0x00},
{0x4509, 0x80},
- {0x450a, 0x08},
- {0x4601, 0x04},
- {0x470f, 0x00},
- {0x4f07, 0x00},
- {0x4800, 0x20},
- {0x5000, 0x9f},
- {0x5001, 0x00},
- {0x5e00, 0x00},
- {0x5d00, 0x07},
- {0x5d01, 0x00},
- {0x0101, 0x01},
- {0x1000, 0x03},
- {0x5a08, 0x84},
+};
+
+static const struct ov9282_reg mode_640x400_regs[] = {
+ {0x3778, 0x10},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x02},
+ {0x3809, 0x80},
+ {0x380a, 0x01},
+ {0x380b, 0x90},
+ {0x3810, 0x00},
+ {0x3811, 0x04},
+ {0x3812, 0x00},
+ {0x3813, 0x04},
+ {0x3814, 0x31},
+ {0x3815, 0x22},
+ {0x3820, 0x60},
+ {0x3821, 0x01},
+ {0x4008, 0x02},
+ {0x4009, 0x05},
+ {0x400c, 0x00},
+ {0x400d, 0x03},
+ {0x4507, 0x03},
+ {0x4509, 0x80},
};
/* Supported sensor mode configurations */
-static const struct ov9282_mode supported_mode = {
- .width = 1280,
- .height = 720,
- .hblank = 250,
- .vblank = 1022,
- .vblank_min = 151,
- .vblank_max = 51540,
- .pclk = 160000000,
- .link_freq_idx = 0,
- .code = MEDIA_BUS_FMT_Y10_1X10,
- .reg_list = {
- .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
- .regs = mode_1280x720_regs,
+static const struct ov9282_mode supported_modes[] = {
+ [MODE_1280_800] = {
+ .width = 1280,
+ .height = 800,
+ .hblank_min = { 250, 176 },
+ .vblank = 1022,
+ .vblank_min = 110,
+ .vblank_max = 51540,
+ .link_freq_idx = 0,
+ .crop = {
+ .left = OV9282_PIXEL_ARRAY_LEFT,
+ .top = OV9282_PIXEL_ARRAY_TOP,
+ .width = 1280,
+ .height = 800
+ },
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1280x800_regs),
+ .regs = mode_1280x800_regs,
+ },
+ },
+ [MODE_1280_720] = {
+ .width = 1280,
+ .height = 720,
+ .hblank_min = { 250, 176 },
+ .vblank = 1022,
+ .vblank_min = 41,
+ .vblank_max = 51540,
+ .link_freq_idx = 0,
+ .crop = {
+ /*
+ * Note that this mode takes the top 720 lines from the
+ * 800 of the sensor. It does not take a middle crop.
+ */
+ .left = OV9282_PIXEL_ARRAY_LEFT,
+ .top = OV9282_PIXEL_ARRAY_TOP,
+ .width = 1280,
+ .height = 720
+ },
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
+ .regs = mode_1280x720_regs,
+ },
+ },
+ [MODE_640_400] = {
+ .width = 640,
+ .height = 400,
+ .hblank_min = { 890, 816 },
+ .vblank = 1022,
+ .vblank_min = 22,
+ .vblank_max = 51540,
+ .link_freq_idx = 0,
+ .crop = {
+ .left = OV9282_PIXEL_ARRAY_LEFT,
+ .top = OV9282_PIXEL_ARRAY_TOP,
+ .width = 1280,
+ .height = 800
+ },
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_640x400_regs),
+ .regs = mode_640x400_regs,
+ },
},
};
@@ -373,19 +543,33 @@ static int ov9282_write_regs(struct ov9282 *ov9282,
* ov9282_update_controls() - Update control ranges based on streaming mode
* @ov9282: pointer to ov9282 device
* @mode: pointer to ov9282_mode sensor mode
+ * @fmt: pointer to the requested mode
*
* Return: 0 if successful, error code otherwise.
*/
static int ov9282_update_controls(struct ov9282 *ov9282,
- const struct ov9282_mode *mode)
+ const struct ov9282_mode *mode,
+ const struct v4l2_subdev_format *fmt)
{
+ u32 hblank_min;
+ s64 pixel_rate;
int ret;
ret = __v4l2_ctrl_s_ctrl(ov9282->link_freq_ctrl, mode->link_freq_idx);
if (ret)
return ret;
- ret = __v4l2_ctrl_s_ctrl(ov9282->hblank_ctrl, mode->hblank);
+ pixel_rate = (fmt->format.code == MEDIA_BUS_FMT_Y10_1X10) ?
+ OV9282_PIXEL_RATE_10BIT : OV9282_PIXEL_RATE_8BIT;
+ ret = __v4l2_ctrl_modify_range(ov9282->pixel_rate, pixel_rate,
+ pixel_rate, 1, pixel_rate);
+ if (ret)
+ return ret;
+
+ hblank_min = mode->hblank_min[ov9282->noncontinuous_clock ? 0 : 1];
+ ret = __v4l2_ctrl_modify_range(ov9282->hblank_ctrl, hblank_min,
+ OV9282_TIMING_HTS_MAX - mode->width, 1,
+ hblank_min);
if (ret)
return ret;
@@ -403,22 +587,15 @@ static int ov9282_update_controls(struct ov9282 *ov9282,
*/
static int ov9282_update_exp_gain(struct ov9282 *ov9282, u32 exposure, u32 gain)
{
- u32 lpfr;
int ret;
- lpfr = ov9282->vblank + ov9282->cur_mode->height;
-
- dev_dbg(ov9282->dev, "Set exp %u, analog gain %u, lpfr %u",
- exposure, gain, lpfr);
+ dev_dbg(ov9282->dev, "Set exp %u, analog gain %u",
+ exposure, gain);
ret = ov9282_write_reg(ov9282, OV9282_REG_HOLD, 1, 1);
if (ret)
return ret;
- ret = ov9282_write_reg(ov9282, OV9282_REG_LPFR, 2, lpfr);
- if (ret)
- goto error_release_group_hold;
-
ret = ov9282_write_reg(ov9282, OV9282_REG_EXPOSURE, 3, exposure << 4);
if (ret)
goto error_release_group_hold;
@@ -431,6 +608,40 @@ error_release_group_hold:
return ret;
}
+static int ov9282_set_ctrl_hflip(struct ov9282 *ov9282, int value)
+{
+ u32 current_val;
+ int ret = ov9282_read_reg(ov9282, OV9282_REG_TIMING_FORMAT_2, 1,
+ &current_val);
+ if (ret)
+ return ret;
+
+ if (value)
+ current_val |= OV9282_FLIP_BIT;
+ else
+ current_val &= ~OV9282_FLIP_BIT;
+
+ return ov9282_write_reg(ov9282, OV9282_REG_TIMING_FORMAT_2, 1,
+ current_val);
+}
+
+static int ov9282_set_ctrl_vflip(struct ov9282 *ov9282, int value)
+{
+ u32 current_val;
+ int ret = ov9282_read_reg(ov9282, OV9282_REG_TIMING_FORMAT_1, 1,
+ &current_val);
+ if (ret)
+ return ret;
+
+ if (value)
+ current_val |= OV9282_FLIP_BIT;
+ else
+ current_val &= ~OV9282_FLIP_BIT;
+
+ return ov9282_write_reg(ov9282, OV9282_REG_TIMING_FORMAT_1, 1,
+ current_val);
+}
+
/**
* ov9282_set_ctrl() - Set subdevice control
* @ctrl: pointer to v4l2_ctrl structure
@@ -449,6 +660,7 @@ static int ov9282_set_ctrl(struct v4l2_ctrl *ctrl)
container_of(ctrl->handler, struct ov9282, ctrl_handler);
u32 analog_gain;
u32 exposure;
+ u32 lpfr;
int ret;
switch (ctrl->id) {
@@ -466,11 +678,14 @@ static int ov9282_set_ctrl(struct v4l2_ctrl *ctrl)
OV9282_EXPOSURE_OFFSET,
1, OV9282_EXPOSURE_DEFAULT);
break;
- case V4L2_CID_EXPOSURE:
- /* Set controls only if sensor is in power on state */
- if (!pm_runtime_get_if_in_use(ov9282->dev))
- return 0;
+ }
+
+ /* Set controls only if sensor is in power on state */
+ if (!pm_runtime_get_if_in_use(ov9282->dev))
+ return 0;
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
exposure = ctrl->val;
analog_gain = ov9282->again_ctrl->val;
@@ -478,15 +693,28 @@ static int ov9282_set_ctrl(struct v4l2_ctrl *ctrl)
exposure, analog_gain);
ret = ov9282_update_exp_gain(ov9282, exposure, analog_gain);
-
- pm_runtime_put(ov9282->dev);
-
+ break;
+ case V4L2_CID_VBLANK:
+ lpfr = ov9282->vblank + ov9282->cur_mode->height;
+ ret = ov9282_write_reg(ov9282, OV9282_REG_LPFR, 2, lpfr);
+ break;
+ case V4L2_CID_HFLIP:
+ ret = ov9282_set_ctrl_hflip(ov9282, ctrl->val);
+ break;
+ case V4L2_CID_VFLIP:
+ ret = ov9282_set_ctrl_vflip(ov9282, ctrl->val);
+ break;
+ case V4L2_CID_HBLANK:
+ ret = ov9282_write_reg(ov9282, OV9282_REG_TIMING_HTS, 2,
+ (ctrl->val + ov9282->cur_mode->width) >> 1);
break;
default:
dev_err(ov9282->dev, "Invalid control %d", ctrl->id);
ret = -EINVAL;
}
+ pm_runtime_put(ov9282->dev);
+
return ret;
}
@@ -507,10 +735,16 @@ static int ov9282_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
- if (code->index > 0)
+ switch (code->index) {
+ case 0:
+ code->code = MEDIA_BUS_FMT_Y10_1X10;
+ break;
+ case 1:
+ code->code = MEDIA_BUS_FMT_Y8_1X8;
+ break;
+ default:
return -EINVAL;
-
- code->code = supported_mode.code;
+ }
return 0;
}
@@ -527,15 +761,16 @@ static int ov9282_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fsize)
{
- if (fsize->index > 0)
+ if (fsize->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
- if (fsize->code != supported_mode.code)
+ if (fsize->code != MEDIA_BUS_FMT_Y10_1X10 &&
+ fsize->code != MEDIA_BUS_FMT_Y8_1X8)
return -EINVAL;
- fsize->min_width = supported_mode.width;
+ fsize->min_width = supported_modes[fsize->index].width;
fsize->max_width = fsize->min_width;
- fsize->min_height = supported_mode.height;
+ fsize->min_height = supported_modes[fsize->index].height;
fsize->max_height = fsize->min_height;
return 0;
@@ -546,15 +781,17 @@ static int ov9282_enum_frame_size(struct v4l2_subdev *sd,
* from selected sensor mode
* @ov9282: pointer to ov9282 device
* @mode: pointer to ov9282_mode sensor mode
+ * @code: mbus code to be stored
* @fmt: V4L2 sub-device format need to be filled
*/
static void ov9282_fill_pad_format(struct ov9282 *ov9282,
const struct ov9282_mode *mode,
+ u32 code,
struct v4l2_subdev_format *fmt)
{
fmt->format.width = mode->width;
fmt->format.height = mode->height;
- fmt->format.code = mode->code;
+ fmt->format.code = code;
fmt->format.field = V4L2_FIELD_NONE;
fmt->format.colorspace = V4L2_COLORSPACE_RAW;
fmt->format.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
@@ -584,7 +821,8 @@ static int ov9282_get_pad_format(struct v4l2_subdev *sd,
framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
fmt->format = *framefmt;
} else {
- ov9282_fill_pad_format(ov9282, ov9282->cur_mode, fmt);
+ ov9282_fill_pad_format(ov9282, ov9282->cur_mode, ov9282->code,
+ fmt);
}
mutex_unlock(&ov9282->mutex);
@@ -606,12 +844,22 @@ static int ov9282_set_pad_format(struct v4l2_subdev *sd,
{
struct ov9282 *ov9282 = to_ov9282(sd);
const struct ov9282_mode *mode;
+ u32 code;
int ret = 0;
mutex_lock(&ov9282->mutex);
- mode = &supported_mode;
- ov9282_fill_pad_format(ov9282, mode, fmt);
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes),
+ width, height,
+ fmt->format.width,
+ fmt->format.height);
+ if (fmt->format.code == MEDIA_BUS_FMT_Y8_1X8)
+ code = MEDIA_BUS_FMT_Y8_1X8;
+ else
+ code = MEDIA_BUS_FMT_Y10_1X10;
+
+ ov9282_fill_pad_format(ov9282, mode, code, fmt);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *framefmt;
@@ -619,9 +867,11 @@ static int ov9282_set_pad_format(struct v4l2_subdev *sd,
framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
*framefmt = fmt->format;
} else {
- ret = ov9282_update_controls(ov9282, mode);
- if (!ret)
+ ret = ov9282_update_controls(ov9282, mode, fmt);
+ if (!ret) {
ov9282->cur_mode = mode;
+ ov9282->code = code;
+ }
}
mutex_unlock(&ov9282->mutex);
@@ -643,11 +893,64 @@ static int ov9282_init_pad_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_format fmt = { 0 };
fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
- ov9282_fill_pad_format(ov9282, &supported_mode, &fmt);
+ ov9282_fill_pad_format(ov9282, &supported_modes[DEFAULT_MODE],
+ ov9282->code, &fmt);
return ov9282_set_pad_format(sd, sd_state, &fmt);
}
+static const struct v4l2_rect *
+__ov9282_get_pad_crop(struct ov9282 *ov9282,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_crop(&ov9282->sd, sd_state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &ov9282->cur_mode->crop;
+ }
+
+ return NULL;
+}
+
+static int ov9282_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP: {
+ struct ov9282 *ov9282 = to_ov9282(sd);
+
+ mutex_lock(&ov9282->mutex);
+ sel->r = *__ov9282_get_pad_crop(ov9282, sd_state, sel->pad,
+ sel->which);
+ mutex_unlock(&ov9282->mutex);
+
+ return 0;
+ }
+
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = OV9282_NATIVE_WIDTH;
+ sel->r.height = OV9282_NATIVE_HEIGHT;
+
+ return 0;
+
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r.top = OV9282_PIXEL_ARRAY_TOP;
+ sel->r.left = OV9282_PIXEL_ARRAY_LEFT;
+ sel->r.width = OV9282_PIXEL_ARRAY_WIDTH;
+ sel->r.height = OV9282_PIXEL_ARRAY_HEIGHT;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
/**
* ov9282_start_streaming() - Start sensor stream
* @ov9282: pointer to ov9282 device
@@ -656,9 +959,34 @@ static int ov9282_init_pad_cfg(struct v4l2_subdev *sd,
*/
static int ov9282_start_streaming(struct ov9282 *ov9282)
{
+ const struct ov9282_reg bitdepth_regs[2][2] = {
+ {
+ {OV9282_REG_PLL_CTRL_0D, OV9282_PLL_CTRL_0D_RAW10},
+ {OV9282_REG_ANA_CORE_2, OV9282_ANA_CORE2_RAW10},
+ }, {
+ {OV9282_REG_PLL_CTRL_0D, OV9282_PLL_CTRL_0D_RAW8},
+ {OV9282_REG_ANA_CORE_2, OV9282_ANA_CORE2_RAW8},
+ }
+ };
const struct ov9282_reg_list *reg_list;
+ int bitdepth_index;
int ret;
+ /* Write common registers */
+ ret = ov9282_write_regs(ov9282, common_regs_list.regs,
+ common_regs_list.num_of_regs);
+ if (ret) {
+ dev_err(ov9282->dev, "fail to write common registers");
+ return ret;
+ }
+
+ bitdepth_index = ov9282->code == MEDIA_BUS_FMT_Y10_1X10 ? 0 : 1;
+ ret = ov9282_write_regs(ov9282, bitdepth_regs[bitdepth_index], 2);
+ if (ret) {
+ dev_err(ov9282->dev, "fail to write bitdepth regs");
+ return ret;
+ }
+
/* Write sensor mode registers */
reg_list = &ov9282->cur_mode->reg_list;
ret = ov9282_write_regs(ov9282, reg_list->regs, reg_list->num_of_regs);
@@ -767,6 +1095,18 @@ static int ov9282_detect(struct ov9282 *ov9282)
return 0;
}
+static int ov9282_configure_regulators(struct ov9282 *ov9282)
+{
+ unsigned int i;
+
+ for (i = 0; i < OV9282_NUM_SUPPLIES; i++)
+ ov9282->supplies[i].supply = ov9282_supply_names[i];
+
+ return devm_regulator_bulk_get(ov9282->dev,
+ OV9282_NUM_SUPPLIES,
+ ov9282->supplies);
+}
+
/**
* ov9282_parse_hw_config() - Parse HW configuration and check if supported
* @ov9282: pointer to ov9282 device
@@ -803,6 +1143,12 @@ static int ov9282_parse_hw_config(struct ov9282 *ov9282)
return PTR_ERR(ov9282->inclk);
}
+ ret = ov9282_configure_regulators(ov9282);
+ if (ret) {
+ dev_err(ov9282->dev, "Failed to get power regulators\n");
+ return ret;
+ }
+
rate = clk_get_rate(ov9282->inclk);
if (rate != OV9282_INCLK_RATE) {
dev_err(ov9282->dev, "inclk frequency mismatch");
@@ -818,6 +1164,9 @@ static int ov9282_parse_hw_config(struct ov9282 *ov9282)
if (ret)
return ret;
+ ov9282->noncontinuous_clock =
+ bus_cfg.bus.mipi_csi2.flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK;
+
if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV9282_NUM_DATA_LANES) {
dev_err(ov9282->dev,
"number of CSI2 data lanes %d is not supported",
@@ -845,6 +1194,11 @@ done_endpoint_free:
}
/* V4l2 subdevice ops */
+static const struct v4l2_subdev_core_ops ov9282_core_ops = {
+ .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
static const struct v4l2_subdev_video_ops ov9282_video_ops = {
.s_stream = ov9282_set_stream,
};
@@ -855,9 +1209,11 @@ static const struct v4l2_subdev_pad_ops ov9282_pad_ops = {
.enum_frame_size = ov9282_enum_frame_size,
.get_fmt = ov9282_get_pad_format,
.set_fmt = ov9282_set_pad_format,
+ .get_selection = ov9282_get_selection,
};
static const struct v4l2_subdev_ops ov9282_subdev_ops = {
+ .core = &ov9282_core_ops,
.video = &ov9282_video_ops,
.pad = &ov9282_pad_ops,
};
@@ -874,6 +1230,12 @@ static int ov9282_power_on(struct device *dev)
struct ov9282 *ov9282 = to_ov9282(sd);
int ret;
+ ret = regulator_bulk_enable(OV9282_NUM_SUPPLIES, ov9282->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable regulators\n");
+ return ret;
+ }
+
usleep_range(400, 600);
gpiod_set_value_cansleep(ov9282->reset_gpio, 1);
@@ -886,11 +1248,23 @@ static int ov9282_power_on(struct device *dev)
usleep_range(400, 600);
+ ret = ov9282_write_reg(ov9282, OV9282_REG_MIPI_CTRL00, 1,
+ ov9282->noncontinuous_clock ?
+ OV9282_GATED_CLOCK : 0);
+ if (ret) {
+ dev_err(ov9282->dev, "fail to write MIPI_CTRL00");
+ goto error_clk;
+ }
+
return 0;
+error_clk:
+ clk_disable_unprepare(ov9282->inclk);
error_reset:
gpiod_set_value_cansleep(ov9282->reset_gpio, 0);
+ regulator_bulk_disable(OV9282_NUM_SUPPLIES, ov9282->supplies);
+
return ret;
}
@@ -909,6 +1283,8 @@ static int ov9282_power_off(struct device *dev)
clk_disable_unprepare(ov9282->inclk);
+ regulator_bulk_disable(OV9282_NUM_SUPPLIES, ov9282->supplies);
+
return 0;
}
@@ -922,10 +1298,12 @@ static int ov9282_init_controls(struct ov9282 *ov9282)
{
struct v4l2_ctrl_handler *ctrl_hdlr = &ov9282->ctrl_handler;
const struct ov9282_mode *mode = ov9282->cur_mode;
+ struct v4l2_fwnode_device_properties props;
+ u32 hblank_min;
u32 lpfr;
int ret;
- ret = v4l2_ctrl_handler_init(ctrl_hdlr, 6);
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
if (ret)
return ret;
@@ -959,12 +1337,18 @@ static int ov9282_init_controls(struct ov9282 *ov9282)
mode->vblank_max,
1, mode->vblank);
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops, V4L2_CID_VFLIP,
+ 0, 1, 1, 1);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops, V4L2_CID_HFLIP,
+ 0, 1, 1, 1);
+
/* Read only controls */
- ov9282->pclk_ctrl = v4l2_ctrl_new_std(ctrl_hdlr,
- &ov9282_ctrl_ops,
- V4L2_CID_PIXEL_RATE,
- mode->pclk, mode->pclk,
- 1, mode->pclk);
+ ov9282->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops,
+ V4L2_CID_PIXEL_RATE,
+ OV9282_PIXEL_RATE_10BIT,
+ OV9282_PIXEL_RATE_10BIT, 1,
+ OV9282_PIXEL_RATE_10BIT);
ov9282->link_freq_ctrl = v4l2_ctrl_new_int_menu(ctrl_hdlr,
&ov9282_ctrl_ops,
@@ -976,16 +1360,22 @@ static int ov9282_init_controls(struct ov9282 *ov9282)
if (ov9282->link_freq_ctrl)
ov9282->link_freq_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ hblank_min = mode->hblank_min[ov9282->noncontinuous_clock ? 0 : 1];
ov9282->hblank_ctrl = v4l2_ctrl_new_std(ctrl_hdlr,
&ov9282_ctrl_ops,
V4L2_CID_HBLANK,
- OV9282_REG_MIN,
- OV9282_REG_MAX,
- 1, mode->hblank);
- if (ov9282->hblank_ctrl)
- ov9282->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ hblank_min,
+ OV9282_TIMING_HTS_MAX - mode->width,
+ 1, hblank_min);
+
+ ret = v4l2_fwnode_device_parse(ov9282->dev, &props);
+ if (!ret) {
+ /* Failure sets ctrl_hdlr->error, which we check afterwards anyway */
+ v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov9282_ctrl_ops,
+ &props);
+ }
- if (ctrl_hdlr->error) {
+ if (ctrl_hdlr->error || ret) {
dev_err(ov9282->dev, "control init failed: %d",
ctrl_hdlr->error);
v4l2_ctrl_handler_free(ctrl_hdlr);
@@ -1016,6 +1406,8 @@ static int ov9282_probe(struct i2c_client *client)
/* Initialize subdev */
v4l2_i2c_subdev_init(&ov9282->sd, client, &ov9282_subdev_ops);
+ v4l2_i2c_subdev_set_name(&ov9282->sd, client,
+ device_get_match_data(ov9282->dev), NULL);
ret = ov9282_parse_hw_config(ov9282);
if (ret) {
@@ -1038,8 +1430,9 @@ static int ov9282_probe(struct i2c_client *client)
goto error_power_off;
}
- /* Set default mode to max resolution */
- ov9282->cur_mode = &supported_mode;
+ /* Set default mode to first mode */
+ ov9282->cur_mode = &supported_modes[DEFAULT_MODE];
+ ov9282->code = MEDIA_BUS_FMT_Y10_1X10;
ov9282->vblank = ov9282->cur_mode->vblank;
ret = ov9282_init_controls(ov9282);
@@ -1049,7 +1442,8 @@ static int ov9282_probe(struct i2c_client *client)
}
/* Initialize subdev */
- ov9282->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ov9282->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+ V4L2_SUBDEV_FL_HAS_EVENTS;
ov9282->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
/* Initialize source pad */
@@ -1113,7 +1507,8 @@ static const struct dev_pm_ops ov9282_pm_ops = {
};
static const struct of_device_id ov9282_of_match[] = {
- { .compatible = "ovti,ov9282" },
+ { .compatible = "ovti,ov9281", .data = "ov9281" },
+ { .compatible = "ovti,ov9282", .data = "ov9282" },
{ }
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 15:13:35 +0000