| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ramiro Oliveira | 1677 | 27.36% | 1 | 1.69% |
| Jacopo Mondi | 1598 | 26.07% | 18 | 30.51% |
| Dave Stevenson | 1346 | 21.96% | 15 | 25.42% |
| David Plowman | 667 | 10.88% | 5 | 8.47% |
| Xiaolei Wang | 631 | 10.30% | 3 | 5.08% |
| Valentine Barshak | 85 | 1.39% | 1 | 1.69% |
| Jacob Chen | 31 | 0.51% | 2 | 3.39% |
| Laurent Pinchart | 29 | 0.47% | 2 | 3.39% |
| Tomi Valkeinen | 18 | 0.29% | 1 | 1.69% |
| Sakari Ailus | 18 | 0.29% | 3 | 5.08% |
| Abdulrasaq Lawani | 13 | 0.21% | 1 | 1.69% |
| Mehdi Djait | 6 | 0.10% | 1 | 1.69% |
| Kuninori Morimoto | 5 | 0.08% | 1 | 1.69% |
| Uwe Kleine-König | 2 | 0.03% | 2 | 3.39% |
| Jai Luthra | 2 | 0.03% | 2 | 3.39% |
| Mauro Carvalho Chehab | 1 | 0.02% | 1 | 1.69% |
| Total | 6129 | 59 |
// SPDX-License-Identifier: GPL-2.0 /* * A V4L2 driver for OmniVision OV5647 cameras. * * Based on Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor driver * Copyright (C) 2011 Sylwester Nawrocki <s.nawrocki@samsung.com> * * Based on Omnivision OV7670 Camera Driver * Copyright (C) 2006-7 Jonathan Corbet <corbet@lwn.net> * * Copyright (C) 2016, Synopsys, Inc. */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of_graph.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <media/v4l2-cci.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-image-sizes.h> #include <media/v4l2-mediabus.h> /* * From the datasheet, "20ms after PWDN goes low or 20ms after RESETB goes * high if reset is inserted after PWDN goes high, host can access sensor's * SCCB to initialize sensor." */ #define PWDN_ACTIVE_DELAY_MS 20 #define MIPI_CTRL00_CLOCK_LANE_GATE BIT(5) #define MIPI_CTRL00_LINE_SYNC_ENABLE BIT(4) #define MIPI_CTRL00_BUS_IDLE BIT(2) #define MIPI_CTRL00_CLOCK_LANE_DISABLE BIT(0) #define OV5647_SW_STANDBY CCI_REG8(0x0100) #define OV5647_SW_RESET CCI_REG8(0x0103) #define OV5647_REG_CHIPID CCI_REG16(0x300a) #define OV5640_REG_PAD_OUT CCI_REG8(0x300d) #define OV5647_REG_EXPOSURE CCI_REG24(0x3500) #define OV5647_REG_AEC_AGC CCI_REG8(0x3503) #define OV5647_REG_GAIN CCI_REG16(0x350a) #define OV5647_REG_HTS CCI_REG16(0x380c) #define OV5647_REG_VTS CCI_REG16(0x380e) #define OV5647_REG_TIMING_TC_V CCI_REG8(0x3820) #define OV5647_REG_TIMING_TC_H CCI_REG8(0x3821) #define OV5647_REG_FRAME_OFF_NUMBER CCI_REG8(0x4202) #define OV5647_REG_MIPI_CTRL00 CCI_REG8(0x4800) #define OV5647_REG_MIPI_CTRL14 CCI_REG8(0x4814) #define OV5647_REG_MIPI_CTRL14_CHANNEL_MASK GENMASK(7, 6) #define OV5647_REG_MIPI_CTRL14_CHANNEL_SHIFT 6 #define OV5647_REG_AWB CCI_REG8(0x5001) #define OV5647_REG_ISPCTRL3D CCI_REG8(0x503d) #define OV5647_CHIP_ID 0x5647 #define REG_TERM 0xfffe #define VAL_TERM 0xfe #define REG_DLY 0xffff /* OV5647 native and active pixel array size */ #define OV5647_NATIVE_WIDTH 2624U #define OV5647_NATIVE_HEIGHT 1956U #define OV5647_PIXEL_ARRAY_LEFT 16U #define OV5647_PIXEL_ARRAY_TOP 6U #define OV5647_PIXEL_ARRAY_WIDTH 2592U #define OV5647_PIXEL_ARRAY_HEIGHT 1944U #define OV5647_VBLANK_MIN 24 #define OV5647_VTS_MAX 32767 #define OV5647_HTS_MAX 0x1fff #define OV5647_EXPOSURE_MIN 4 #define OV5647_EXPOSURE_STEP 1 #define OV5647_EXPOSURE_DEFAULT 1000 #define OV5647_EXPOSURE_MAX 65535 /* regulator supplies */ static const char * const ov5647_supply_names[] = { "avdd", /* Analog power */ "dovdd", /* Digital I/O power */ "dvdd", /* Digital core power */ }; #define OV5647_NUM_SUPPLIES ARRAY_SIZE(ov5647_supply_names) #define FREQ_INDEX_FULL 0 #define FREQ_INDEX_VGA 1 static const s64 ov5647_link_freqs[] = { [FREQ_INDEX_FULL] = 218750000, [FREQ_INDEX_VGA] = 145833300, }; struct ov5647_mode { struct v4l2_mbus_framefmt format; struct v4l2_rect crop; u64 pixel_rate; unsigned int link_freq_index; int hts; int vts; const struct reg_sequence *reg_list; unsigned int num_regs; }; struct ov5647 { struct v4l2_subdev sd; struct regmap *regmap; struct media_pad pad; struct clk *xclk; struct gpio_desc *pwdn; struct regulator_bulk_data supplies[OV5647_NUM_SUPPLIES]; bool clock_ncont; struct v4l2_ctrl_handler ctrls; const struct ov5647_mode *mode; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; struct v4l2_ctrl *exposure; struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; struct v4l2_ctrl *link_freq; }; static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd) { return container_of(sd, struct ov5647, sd); } static const char * const ov5647_test_pattern_menu[] = { "Disabled", "Color Bars", "Color Squares", "Random Data", }; static const u8 ov5647_test_pattern_val[] = { 0x00, /* Disabled */ 0x80, /* Color Bars */ 0x82, /* Color Squares */ 0x81, /* Random Data */ }; static const struct reg_sequence sensor_oe_disable_regs[] = { {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, }; static const struct reg_sequence sensor_oe_enable_regs[] = { {0x3000, 0x0f}, {0x3001, 0xff}, {0x3002, 0xe4}, }; static const struct reg_sequence ov5647_common_regs[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3034, 0x1a}, {0x3035, 0x21}, {0x303c, 0x11}, {0x3106, 0xf5}, {0x3827, 0xec}, {0x370c, 0x03}, {0x5000, 0x06}, {0x5003, 0x08}, {0x5a00, 0x08}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3016, 0x08}, {0x3017, 0xe0}, {0x3018, 0x44}, {0x301c, 0xf8}, {0x301d, 0xf0}, {0x3a18, 0x00}, {0x3a19, 0xf8}, {0x3c01, 0x80}, {0x3b07, 0x0c}, {0x3630, 0x2e}, {0x3632, 0xe2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3636, 0x06}, {0x3620, 0x64}, {0x3621, 0xe0}, {0x3600, 0x37}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3f05, 0x02}, {0x3f06, 0x10}, {0x3f01, 0x0a}, {0x3a08, 0x01}, {0x3a0f, 0x58}, {0x3a10, 0x50}, {0x3a1b, 0x58}, {0x3a1e, 0x50}, {0x3a11, 0x60}, {0x3a1f, 0x28}, {0x4001, 0x02}, {0x4000, 0x09}, {0x3503, 0x03}, }; static const struct reg_sequence ov5647_2592x1944_10bpp[] = { {0x3036, 0x69}, {0x3821, 0x02}, {0x3820, 0x00}, {0x3612, 0x5b}, {0x3618, 0x04}, {0x5002, 0x41}, {0x3814, 0x11}, {0x3815, 0x11}, {0x3708, 0x64}, {0x3709, 0x12}, {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0xa3}, {0x3808, 0x0a}, {0x3809, 0x20}, {0x380a, 0x07}, {0x380b, 0x98}, {0x3811, 0x10}, {0x3813, 0x06}, {0x3a09, 0x28}, {0x3a0a, 0x00}, {0x3a0b, 0xf6}, {0x3a0d, 0x08}, {0x3a0e, 0x06}, {0x4004, 0x04}, {0x4837, 0x19}, {0x4800, 0x24}, {0x0100, 0x01}, }; static const struct reg_sequence ov5647_1080p30_10bpp[] = { {0x3036, 0x69}, {0x3821, 0x02}, {0x3820, 0x00}, {0x3612, 0x5b}, {0x3618, 0x04}, {0x5002, 0x41}, {0x3814, 0x11}, {0x3815, 0x11}, {0x3708, 0x64}, {0x3709, 0x12}, {0x3800, 0x01}, {0x3801, 0x5c}, {0x3802, 0x01}, {0x3803, 0xb2}, {0x3804, 0x08}, {0x3805, 0xe3}, {0x3806, 0x05}, {0x3807, 0xf1}, {0x3808, 0x07}, {0x3809, 0x80}, {0x380a, 0x04}, {0x380b, 0x38}, {0x3811, 0x04}, {0x3813, 0x02}, {0x3a09, 0x4b}, {0x3a0a, 0x01}, {0x3a0b, 0x13}, {0x3a0d, 0x04}, {0x3a0e, 0x03}, {0x4004, 0x04}, {0x4837, 0x19}, {0x4800, 0x34}, {0x0100, 0x01}, }; static const struct reg_sequence ov5647_2x2binned_10bpp[] = { {0x3036, 0x69}, {0x3821, 0x03}, {0x3820, 0x41}, {0x3612, 0x59}, {0x3618, 0x00}, {0x5002, 0x41}, {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0xa3}, {0x3808, 0x05}, {0x3809, 0x10}, {0x380a, 0x03}, {0x380b, 0xcc}, {0x3811, 0x0c}, {0x3813, 0x06}, {0x3814, 0x31}, {0x3815, 0x31}, {0x3a09, 0x28}, {0x3a0a, 0x00}, {0x3a0b, 0xf6}, {0x3a0d, 0x08}, {0x3a0e, 0x06}, {0x4004, 0x04}, {0x4837, 0x16}, {0x4800, 0x24}, {0x350a, 0x00}, {0x350b, 0x10}, {0x3500, 0x00}, {0x3501, 0x1a}, {0x3502, 0xf0}, {0x3212, 0xa0}, {0x0100, 0x01}, }; static const struct reg_sequence ov5647_640x480_10bpp[] = { {0x3036, 0x46}, {0x3821, 0x03}, {0x3820, 0x41}, {0x3612, 0x59}, {0x3618, 0x00}, {0x3814, 0x35}, {0x3815, 0x35}, {0x3708, 0x64}, {0x3709, 0x52}, {0x3800, 0x00}, {0x3801, 0x10}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x2f}, {0x3806, 0x07}, {0x3807, 0x9f}, {0x3808, 0x02}, {0x3809, 0x80}, {0x380a, 0x01}, {0x380b, 0xe0}, {0x3a09, 0x2e}, {0x3a0a, 0x00}, {0x3a0b, 0xfb}, {0x3a0d, 0x02}, {0x3a0e, 0x01}, {0x4004, 0x02}, {0x4800, 0x34}, {0x0100, 0x01}, }; static const struct ov5647_mode ov5647_modes[] = { /* 2592x1944 full resolution full FOV 10-bit mode. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .field = V4L2_FIELD_NONE, .width = 2592, .height = 1944 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2592, .height = 1944 }, .pixel_rate = 87500000, .link_freq_index = FREQ_INDEX_FULL, .hts = 2844, .vts = 0x7b0, .reg_list = ov5647_2592x1944_10bpp, .num_regs = ARRAY_SIZE(ov5647_2592x1944_10bpp) }, /* 1080p30 10-bit mode. Full resolution centre-cropped down to 1080p. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .field = V4L2_FIELD_NONE, .width = 1920, .height = 1080 }, .crop = { .left = 348 + OV5647_PIXEL_ARRAY_LEFT, .top = 434 + OV5647_PIXEL_ARRAY_TOP, .width = 1928, .height = 1080, }, .pixel_rate = 87500000, .link_freq_index = FREQ_INDEX_FULL, .hts = 2416, .vts = 0x450, .reg_list = ov5647_1080p30_10bpp, .num_regs = ARRAY_SIZE(ov5647_1080p30_10bpp) }, /* 2x2 binned full FOV 10-bit mode. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .field = V4L2_FIELD_NONE, .width = 1296, .height = 972 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2592, .height = 1944, }, .pixel_rate = 87500000, .link_freq_index = FREQ_INDEX_FULL, .hts = 1896, .vts = 0x59b, .reg_list = ov5647_2x2binned_10bpp, .num_regs = ARRAY_SIZE(ov5647_2x2binned_10bpp) }, /* 10-bit VGA full FOV 60fps. 2x2 binned and subsampled down to VGA. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .field = V4L2_FIELD_NONE, .width = 640, .height = 480 }, .crop = { .left = 16 + OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2560, .height = 1920, }, .pixel_rate = 58333000, .link_freq_index = FREQ_INDEX_VGA, .hts = 1852, .vts = 0x1f8, .reg_list = ov5647_640x480_10bpp, .num_regs = ARRAY_SIZE(ov5647_640x480_10bpp) }, }; /* Default sensor mode is 2x2 binned 640x480 SBGGR10_1X10. */ #define OV5647_DEFAULT_MODE (&ov5647_modes[3]) #define OV5647_DEFAULT_FORMAT (ov5647_modes[3].format) static int ov5647_set_virtual_channel(struct v4l2_subdev *sd, int channel) { struct ov5647 *sensor = to_sensor(sd); return cci_update_bits(sensor->regmap, OV5647_REG_MIPI_CTRL14, OV5647_REG_MIPI_CTRL14_CHANNEL_MASK, channel << OV5647_REG_MIPI_CTRL14_CHANNEL_SHIFT, NULL); } static int ov5647_set_mode(struct v4l2_subdev *sd) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5647 *sensor = to_sensor(sd); u64 resetval, rdval; int ret; ret = cci_read(sensor->regmap, OV5647_SW_STANDBY, &rdval, NULL); if (ret < 0) return ret; ret = regmap_multi_reg_write(sensor->regmap, ov5647_common_regs, ARRAY_SIZE(ov5647_common_regs)); if (ret < 0) { dev_err(&client->dev, "write sensor common regs error\n"); return ret; } ret = regmap_multi_reg_write(sensor->regmap, sensor->mode->reg_list, sensor->mode->num_regs); if (ret < 0) { dev_err(&client->dev, "write sensor default regs error\n"); return ret; } ret = ov5647_set_virtual_channel(sd, 0); if (ret < 0) return ret; ret = cci_read(sensor->regmap, OV5647_SW_STANDBY, &resetval, NULL); if (ret < 0) return ret; if (!(resetval & 0x01)) { dev_err(&client->dev, "Device was in SW standby"); ret = cci_write(sensor->regmap, OV5647_SW_STANDBY, 0x01, NULL); if (ret < 0) return ret; } return 0; } static int ov5647_stream_stop(struct ov5647 *sensor) { int ret = 0; cci_write(sensor->regmap, OV5647_REG_MIPI_CTRL00, MIPI_CTRL00_CLOCK_LANE_GATE | MIPI_CTRL00_BUS_IDLE | MIPI_CTRL00_CLOCK_LANE_DISABLE, &ret); cci_write(sensor->regmap, OV5647_REG_FRAME_OFF_NUMBER, 0x0f, &ret); cci_write(sensor->regmap, OV5640_REG_PAD_OUT, 0x01, &ret); return ret; } static int ov5647_enable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 pad, u64 streams_mask) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5647 *sensor = to_sensor(sd); u8 val = MIPI_CTRL00_BUS_IDLE; int ret; ret = pm_runtime_resume_and_get(&client->dev); if (ret < 0) return ret; ret = ov5647_set_mode(sd); if (ret) { dev_err(&client->dev, "Failed to program sensor mode: %d\n", ret); goto done; } /* Apply customized values from user when stream starts. */ ret = __v4l2_ctrl_handler_setup(sd->ctrl_handler); if (ret) goto done; if (sensor->clock_ncont) val |= MIPI_CTRL00_CLOCK_LANE_GATE | MIPI_CTRL00_LINE_SYNC_ENABLE; cci_write(sensor->regmap, OV5647_REG_MIPI_CTRL00, val, &ret); cci_write(sensor->regmap, OV5647_REG_FRAME_OFF_NUMBER, 0x00, &ret); cci_write(sensor->regmap, OV5640_REG_PAD_OUT, 0x00, &ret); done: if (ret) pm_runtime_put(&client->dev); return ret; } static int ov5647_disable_streams(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, u32 pad, u64 streams_mask) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5647 *sensor = to_sensor(sd); int ret; ret = ov5647_stream_stop(sensor); pm_runtime_put(&client->dev); return ret; } static int ov5647_power_on(struct device *dev) { struct ov5647 *sensor = dev_get_drvdata(dev); int ret; dev_dbg(dev, "OV5647 power on\n"); ret = regulator_bulk_enable(OV5647_NUM_SUPPLIES, sensor->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators: %d\n", ret); return ret; } ret = gpiod_set_value_cansleep(sensor->pwdn, 0); if (ret < 0) { dev_err(dev, "pwdn gpio set value failed: %d\n", ret); goto error_reg_disable; } msleep(PWDN_ACTIVE_DELAY_MS); ret = clk_prepare_enable(sensor->xclk); if (ret < 0) { dev_err(dev, "clk prepare enable failed\n"); goto error_pwdn; } ret = regmap_multi_reg_write(sensor->regmap, sensor_oe_enable_regs, ARRAY_SIZE(sensor_oe_enable_regs)); if (ret < 0) { dev_err(dev, "write sensor_oe_enable_regs error\n"); goto error_clk_disable; } /* Stream off to coax lanes into LP-11 state. */ ret = ov5647_stream_stop(sensor); if (ret < 0) { dev_err(dev, "camera not available, check power\n"); goto error_clk_disable; } return 0; error_clk_disable: clk_disable_unprepare(sensor->xclk); error_pwdn: gpiod_set_value_cansleep(sensor->pwdn, 1); error_reg_disable: regulator_bulk_disable(OV5647_NUM_SUPPLIES, sensor->supplies); return ret; } static int ov5647_power_off(struct device *dev) { struct ov5647 *sensor = dev_get_drvdata(dev); int ret; dev_dbg(dev, "OV5647 power off\n"); ret = regmap_multi_reg_write(sensor->regmap, sensor_oe_disable_regs, ARRAY_SIZE(sensor_oe_disable_regs)); if (ret < 0) dev_dbg(dev, "disable oe failed\n"); /* Enter software standby */ ret = cci_update_bits(sensor->regmap, OV5647_SW_STANDBY, 0x01, 0x00, NULL); if (ret < 0) dev_dbg(dev, "software standby failed\n"); clk_disable_unprepare(sensor->xclk); gpiod_set_value_cansleep(sensor->pwdn, 1); regulator_bulk_disable(OV5647_NUM_SUPPLIES, sensor->supplies); return 0; } #ifdef CONFIG_VIDEO_ADV_DEBUG static int ov5647_sensor_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { struct ov5647 *sensor = to_sensor(sd); int ret; u64 val; ret = cci_read(sensor->regmap, reg->reg & 0xff, &val, NULL); if (ret < 0) return ret; reg->val = val; reg->size = 1; return 0; } static int ov5647_sensor_set_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { struct ov5647 *sensor = to_sensor(sd); return cci_write(sensor->regmap, reg->reg & 0xff, reg->val & 0xff, NULL); } #endif /* Subdev core operations registration */ static const struct v4l2_subdev_core_ops ov5647_subdev_core_ops = { .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = ov5647_sensor_get_register, .s_register = ov5647_sensor_set_register, #endif }; static const struct v4l2_rect * __ov5647_get_pad_crop(struct ov5647 *ov5647, 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_state_get_crop(sd_state, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &ov5647->mode->crop; } return NULL; } static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = { .s_stream = v4l2_subdev_s_stream_helper, }; /* * This function returns the mbus code for the current settings of the HFLIP * and VFLIP controls. */ static u32 ov5647_get_mbus_code(struct v4l2_subdev *sd) { struct ov5647 *sensor = to_sensor(sd); /* The control values are only 0 or 1. */ int index = sensor->hflip->val | (sensor->vflip->val << 1); static const u32 codes[4] = { MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10 }; return codes[index]; } static int ov5647_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { if (code->index > 0) return -EINVAL; code->code = ov5647_get_mbus_code(sd); return 0; } static int ov5647_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { const struct v4l2_mbus_framefmt *fmt; if (fse->code != ov5647_get_mbus_code(sd) || fse->index >= ARRAY_SIZE(ov5647_modes)) return -EINVAL; fmt = &ov5647_modes[fse->index].format; fse->min_width = fmt->width; fse->max_width = fmt->width; fse->min_height = fmt->height; fse->max_height = fmt->height; return 0; } static int ov5647_get_pad_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *fmt = &format->format; const struct v4l2_mbus_framefmt *sensor_format; struct ov5647 *sensor = to_sensor(sd); switch (format->which) { case V4L2_SUBDEV_FORMAT_TRY: sensor_format = v4l2_subdev_state_get_format(sd_state, format->pad); break; default: sensor_format = &sensor->mode->format; break; } *fmt = *sensor_format; /* The code we pass back must reflect the current h/vflips. */ fmt->code = ov5647_get_mbus_code(sd); return 0; } static int ov5647_set_pad_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *fmt = &format->format; struct ov5647 *sensor = to_sensor(sd); const struct ov5647_mode *mode; mode = v4l2_find_nearest_size(ov5647_modes, ARRAY_SIZE(ov5647_modes), format.width, format.height, fmt->width, fmt->height); /* Update the sensor mode and apply at it at streamon time. */ if (format->which == V4L2_SUBDEV_FORMAT_TRY) { *v4l2_subdev_state_get_format(sd_state, format->pad) = mode->format; } else { int exposure_max, exposure_def; int hblank, vblank; sensor->mode = mode; __v4l2_ctrl_modify_range(sensor->pixel_rate, mode->pixel_rate, mode->pixel_rate, 1, mode->pixel_rate); hblank = mode->hts - mode->format.width; __v4l2_ctrl_modify_range(sensor->hblank, hblank, OV5647_HTS_MAX - mode->format.width, 1, hblank); vblank = mode->vts - mode->format.height; __v4l2_ctrl_modify_range(sensor->vblank, OV5647_VBLANK_MIN, OV5647_VTS_MAX - mode->format.height, 1, vblank); __v4l2_ctrl_s_ctrl(sensor->vblank, vblank); exposure_max = mode->vts - 4; exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT); __v4l2_ctrl_modify_range(sensor->exposure, sensor->exposure->minimum, exposure_max, sensor->exposure->step, exposure_def); __v4l2_ctrl_s_ctrl(sensor->link_freq, mode->link_freq_index); } *fmt = mode->format; /* The code we pass back must reflect the current h/vflips. */ fmt->code = ov5647_get_mbus_code(sd); return 0; } static int ov5647_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 ov5647 *sensor = to_sensor(sd); sel->r = *__ov5647_get_pad_crop(sensor, sd_state, sel->pad, sel->which); return 0; } case V4L2_SEL_TGT_NATIVE_SIZE: sel->r.top = 0; sel->r.left = 0; sel->r.width = OV5647_NATIVE_WIDTH; sel->r.height = OV5647_NATIVE_HEIGHT; return 0; case V4L2_SEL_TGT_CROP_DEFAULT: case V4L2_SEL_TGT_CROP_BOUNDS: sel->r.top = OV5647_PIXEL_ARRAY_TOP; sel->r.left = OV5647_PIXEL_ARRAY_LEFT; sel->r.width = OV5647_PIXEL_ARRAY_WIDTH; sel->r.height = OV5647_PIXEL_ARRAY_HEIGHT; return 0; } return -EINVAL; } static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = { .enum_mbus_code = ov5647_enum_mbus_code, .enum_frame_size = ov5647_enum_frame_size, .set_fmt = ov5647_set_pad_fmt, .get_fmt = ov5647_get_pad_fmt, .get_selection = ov5647_get_selection, .enable_streams = ov5647_enable_streams, .disable_streams = ov5647_disable_streams, }; static const struct v4l2_subdev_ops ov5647_subdev_ops = { .core = &ov5647_subdev_core_ops, .video = &ov5647_subdev_video_ops, .pad = &ov5647_subdev_pad_ops, }; static int ov5647_detect(struct v4l2_subdev *sd) { struct ov5647 *sensor = to_sensor(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); u64 read; int ret; ret = cci_write(sensor->regmap, OV5647_SW_RESET, 0x01, NULL); if (ret < 0) return ret; ret = cci_read(sensor->regmap, OV5647_REG_CHIPID, &read, NULL); if (ret < 0) return dev_err_probe(&client->dev, ret, "failed to read chip id %x\n", OV5647_REG_CHIPID); if (read != OV5647_CHIP_ID) { dev_err(&client->dev, "Chip ID expected 0x5647 got 0x%llx", read); return -ENODEV; } return cci_write(sensor->regmap, OV5647_SW_RESET, 0x00, NULL); } static int ov5647_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct v4l2_mbus_framefmt *format = v4l2_subdev_state_get_format(fh->state, 0); struct v4l2_rect *crop = v4l2_subdev_state_get_crop(fh->state, 0); crop->left = OV5647_PIXEL_ARRAY_LEFT; crop->top = OV5647_PIXEL_ARRAY_TOP; crop->width = OV5647_PIXEL_ARRAY_WIDTH; crop->height = OV5647_PIXEL_ARRAY_HEIGHT; *format = OV5647_DEFAULT_FORMAT; return 0; } static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = { .open = ov5647_open, }; static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl) { struct ov5647 *sensor = container_of(ctrl->handler, struct ov5647, ctrls); struct v4l2_subdev *sd = &sensor->sd; struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; if (ctrl->id == V4L2_CID_VBLANK) { int exposure_max, exposure_def; /* Update max exposure while meeting expected vblanking */ exposure_max = sensor->mode->format.height + ctrl->val - 4; exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT); __v4l2_ctrl_modify_range(sensor->exposure, sensor->exposure->minimum, exposure_max, sensor->exposure->step, exposure_def); } /* * If the device is not powered up do not apply any controls * to H/W at this time. Instead the controls will be restored * at s_stream(1) time. */ if (pm_runtime_get_if_in_use(&client->dev) == 0) return 0; switch (ctrl->id) { case V4L2_CID_AUTO_WHITE_BALANCE: ret = cci_write(sensor->regmap, OV5647_REG_AWB, ctrl->val ? 1 : 0, NULL); break; case V4L2_CID_AUTOGAIN: /* Non-zero turns on AGC by clearing bit 1.*/ return cci_update_bits(sensor->regmap, OV5647_REG_AEC_AGC, BIT(1), ctrl->val ? 0 : BIT(1), NULL); break; case V4L2_CID_EXPOSURE_AUTO: /* * Everything except V4L2_EXPOSURE_MANUAL turns on AEC by * clearing bit 0. */ return cci_update_bits(sensor->regmap, OV5647_REG_AEC_AGC, BIT(0), ctrl->val == V4L2_EXPOSURE_MANUAL ? BIT(0) : 0, NULL); break; case V4L2_CID_ANALOGUE_GAIN: /* 10 bits of gain, 2 in the high register. */ return cci_write(sensor->regmap, OV5647_REG_GAIN, ctrl->val & 0x3ff, NULL); break; case V4L2_CID_EXPOSURE: /* * Sensor has 20 bits, but the bottom 4 bits are fractions of a line * which we leave as zero (and don't receive in "val"). */ ret = cci_write(sensor->regmap, OV5647_REG_EXPOSURE, ctrl->val << 4, NULL); break; case V4L2_CID_VBLANK: ret = cci_write(sensor->regmap, OV5647_REG_VTS, sensor->mode->format.height + ctrl->val, NULL); break; case V4L2_CID_HBLANK: ret = cci_write(sensor->regmap, OV5647_REG_HTS, sensor->mode->format.width + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN: ret = cci_write(sensor->regmap, OV5647_REG_ISPCTRL3D, ov5647_test_pattern_val[ctrl->val], NULL); break; case V4L2_CID_HFLIP: /* There's an in-built hflip in the sensor, so account for that here. */ ret = cci_update_bits(sensor->regmap, OV5647_REG_TIMING_TC_H, BIT(1), ctrl->val ? 0 : BIT(1), NULL); break; case V4L2_CID_VFLIP: ret = cci_update_bits(sensor->regmap, OV5647_REG_TIMING_TC_V, BIT(1), ctrl->val ? BIT(1) : 0, NULL); break; default: dev_info(&client->dev, "Control (id:0x%x, val:0x%x) not supported\n", ctrl->id, ctrl->val); return -EINVAL; } pm_runtime_put(&client->dev); return ret; } static const struct v4l2_ctrl_ops ov5647_ctrl_ops = { .s_ctrl = ov5647_s_ctrl, }; static int ov5647_configure_regulators(struct device *dev, struct ov5647 *sensor) { for (unsigned int i = 0; i < OV5647_NUM_SUPPLIES; i++) sensor->supplies[i].supply = ov5647_supply_names[i]; return devm_regulator_bulk_get(dev, OV5647_NUM_SUPPLIES, sensor->supplies); } static int ov5647_init_controls(struct ov5647 *sensor) { struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd); struct v4l2_fwnode_device_properties props; int hblank, exposure_max, exposure_def; struct device *dev = &client->dev; v4l2_ctrl_handler_init(&sensor->ctrls, 14); v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 0); v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 0); v4l2_ctrl_new_std_menu(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_MANUAL); exposure_max = sensor->mode->vts - 4; exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT); sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_EXPOSURE, OV5647_EXPOSURE_MIN, exposure_max, OV5647_EXPOSURE_STEP, exposure_def); /* min: 16 = 1.0x; max (10 bits); default: 32 = 2.0x. */ v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 16, 1023, 1, 32); /* By default, PIXEL_RATE is read only, but it does change per mode */ sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE, sensor->mode->pixel_rate, sensor->mode->pixel_rate, 1, sensor->mode->pixel_rate); hblank = sensor->mode->hts - sensor->mode->format.width; sensor->hblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_HBLANK, hblank, OV5647_HTS_MAX - sensor->mode->format.width, 1, hblank); sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_VBLANK, OV5647_VBLANK_MIN, OV5647_VTS_MAX - sensor->mode->format.height, 1, sensor->mode->vts - sensor->mode->format.height); v4l2_ctrl_new_std_menu_items(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov5647_test_pattern_menu) - 1, 0, 0, ov5647_test_pattern_menu); sensor->hflip = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); sensor->vflip = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); sensor->link_freq = v4l2_ctrl_new_int_menu(&sensor->ctrls, NULL, V4L2_CID_LINK_FREQ, ARRAY_SIZE(ov5647_link_freqs) - 1, sensor->mode->link_freq_index, ov5647_link_freqs); if (sensor->link_freq) sensor->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; v4l2_fwnode_device_parse(dev, &props); v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &ov5647_ctrl_ops, &props); if (sensor->ctrls.error) goto handler_free; sensor->sd.ctrl_handler = &sensor->ctrls; return 0; handler_free: dev_err(&client->dev, "%s Controls initialization failed (%d)\n", __func__, sensor->ctrls.error); v4l2_ctrl_handler_free(&sensor->ctrls); return sensor->ctrls.error; } static int ov5647_parse_dt(struct ov5647 *sensor, struct device_node *np) { struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_CSI2_DPHY, }; struct device_node *ep __free(device_node) = of_graph_get_endpoint_by_regs(np, 0, -1); int ret; if (!ep) return -EINVAL; ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg); if (ret) return ret; sensor->clock_ncont = bus_cfg.bus.mipi_csi2.flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK; return 0; } static int ov5647_probe(struct i2c_client *client) { struct device_node *np = client->dev.of_node; struct device *dev = &client->dev; struct ov5647 *sensor; struct v4l2_subdev *sd; u32 xclk_freq; int ret; sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; if (IS_ENABLED(CONFIG_OF) && np) { ret = ov5647_parse_dt(sensor, np); if (ret) { dev_err(dev, "DT parsing error: %d\n", ret); return ret; } } sensor->xclk = devm_v4l2_sensor_clk_get(dev, NULL); if (IS_ERR(sensor->xclk)) return dev_err_probe(dev, PTR_ERR(sensor->xclk), "could not get xclk\n"); xclk_freq = clk_get_rate(sensor->xclk); if (xclk_freq != 25000000) { dev_err(dev, "Unsupported clock frequency: %u\n", xclk_freq); return -EINVAL; } /* Request the power down GPIO asserted. */ sensor->pwdn = devm_gpiod_get_optional(dev, "pwdn", GPIOD_OUT_HIGH); if (IS_ERR(sensor->pwdn)) { dev_err(dev, "Failed to get 'pwdn' gpio\n"); return -EINVAL; } ret = ov5647_configure_regulators(dev, sensor); if (ret) dev_err_probe(dev, ret, "Failed to get power regulators\n"); sensor->mode = OV5647_DEFAULT_MODE; sd = &sensor->sd; v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops); sd->internal_ops = &ov5647_subdev_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; ret = ov5647_init_controls(sensor); if (ret) return ret; sensor->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad); if (ret < 0) goto ctrl_handler_free; sensor->regmap = devm_cci_regmap_init_i2c(client, 16); if (IS_ERR(sensor->regmap)) { ret = dev_err_probe(dev, PTR_ERR(sensor->regmap), "Failed to init CCI\n"); goto entity_cleanup; } ret = ov5647_power_on(dev); if (ret) goto entity_cleanup; ret = ov5647_detect(sd); if (ret < 0) goto power_off; sd->state_lock = sensor->ctrls.lock; ret = v4l2_subdev_init_finalize(sd); if (ret < 0) { ret = dev_err_probe(dev, ret, "failed to init subdev\n"); goto power_off; } /* Enable runtime PM and turn off the device */ pm_runtime_set_active(dev); pm_runtime_enable(dev); ret = v4l2_async_register_subdev_sensor(sd); if (ret < 0) goto v4l2_subdev_cleanup; pm_runtime_idle(dev); dev_dbg(dev, "OmniVision OV5647 camera driver probed\n"); return 0; v4l2_subdev_cleanup: v4l2_subdev_cleanup(sd); power_off: ov5647_power_off(dev); entity_cleanup: media_entity_cleanup(&sd->entity); ctrl_handler_free: v4l2_ctrl_handler_free(&sensor->ctrls); return ret; } static void ov5647_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov5647 *sensor = to_sensor(sd); v4l2_async_unregister_subdev(&sensor->sd); v4l2_subdev_cleanup(sd); media_entity_cleanup(&sensor->sd.entity); v4l2_ctrl_handler_free(&sensor->ctrls); v4l2_device_unregister_subdev(sd); pm_runtime_disable(&client->dev); } static const struct dev_pm_ops ov5647_pm_ops = { SET_RUNTIME_PM_OPS(ov5647_power_off, ov5647_power_on, NULL) }; static const struct i2c_device_id ov5647_id[] = { { "ov5647" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, ov5647_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id ov5647_of_match[] = { { .compatible = "ovti,ov5647" }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ov5647_of_match); #endif static struct i2c_driver ov5647_driver = { .driver = { .of_match_table = of_match_ptr(ov5647_of_match), .name = "ov5647", .pm = &ov5647_pm_ops, }, .probe = ov5647_probe, .remove = ov5647_remove, .id_table = ov5647_id, }; module_i2c_driver(ov5647_driver); MODULE_AUTHOR("Ramiro Oliveira <roliveir@synopsys.com>"); MODULE_DESCRIPTION("A low-level driver for OmniVision ov5647 sensors"); MODULE_LICENSE("GPL v2");
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1