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| #include <linux/clk.h> |
| #include <linux/device.h> |
| #include <linux/delay.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/i2c.h> |
| #include <linux/module.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/sysfs.h> |
| #include <linux/version.h> |
| #include <linux/rk-camera-module.h> |
| #include <media/media-entity.h> |
| #include <media/v4l2-async.h> |
| #include <media/v4l2-ctrls.h> |
| #include <media/v4l2-subdev.h> |
| #include <linux/pinctrl/consumer.h> |
| |
| #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x05) |
| |
| #ifndef V4L2_CID_DIGITAL_GAIN |
| #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN |
| #endif |
| |
| #define GC2385_LANES 1 |
| #define GC2385_BITS_PER_SAMPLE 10 |
| #define GC2385_LINK_FREQ_MHZ 328000000 |
| |
| #define GC2385_PIXEL_RATE (GC2385_LINK_FREQ_MHZ * 2 * 1 / 10) |
| #define GC2385_XVCLK_FREQ 24000000 |
| |
| #define CHIP_ID 0x2385 |
| #define GC2385_REG_CHIP_ID_H 0xf0 |
| #define GC2385_REG_CHIP_ID_L 0xf1 |
| |
| #define GC2385_REG_SET_PAGE 0xfe |
| #define GC2385_SET_PAGE_ONE 0x00 |
| |
| #define GC2385_REG_CTRL_MODE 0xed |
| #define GC2385_MODE_SW_STANDBY 0x00 |
| #define GC2385_MODE_STREAMING 0x90 |
| |
| #define GC2385_REG_EXPOSURE_H 0x03 |
| #define GC2385_REG_EXPOSURE_L 0x04 |
| #define GC2385_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 8) & 0x3F) |
| #define GC2385_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF) |
| #define GC2385_EXPOSURE_MIN 4 |
| #define GC2385_EXPOSURE_STEP 1 |
| #define GC2385_VTS_MAX 0x1fff |
| |
| #define GC2385_REG_AGAIN 0xb6 |
| #define GC2385_REG_DGAIN_INT 0xb1 |
| #define GC2385_REG_DGAIN_FRAC 0xb2 |
| #define GC2385_GAIN_MIN 64 |
| #define GC2385_GAIN_MAX 1092 |
| #define GC2385_GAIN_STEP 1 |
| #define GC2385_GAIN_DEFAULT 64 |
| |
| #define GC2385_REG_VTS_H 0x07 |
| #define GC2385_REG_VTS_L 0x08 |
| |
| #define REG_NULL 0xFF |
| |
| #define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" |
| #define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" |
| |
| #define GC2385_NAME "gc2385" |
| |
| static const char * const gc2385_supply_names[] = { |
| <------>"avdd", |
| <------>"dovdd", |
| <------>"dvdd", |
| }; |
| |
| #define GC2385_NUM_SUPPLIES ARRAY_SIZE(gc2385_supply_names) |
| |
| struct regval { |
| <------>u8 addr; |
| <------>u8 val; |
| }; |
| |
| struct gc2385_mode { |
| <------>u32 width; |
| <------>u32 height; |
| <------>struct v4l2_fract max_fps; |
| <------>u32 hts_def; |
| <------>u32 vts_def; |
| <------>u32 exp_def; |
| <------>const struct regval *reg_list; |
| }; |
| |
| struct gc2385 { |
| <------>struct i2c_client *client; |
| <------>struct clk *xvclk; |
| <------>struct gpio_desc *reset_gpio; |
| <------>struct gpio_desc *pwdn_gpio; |
| <------>struct regulator_bulk_data supplies[GC2385_NUM_SUPPLIES]; |
| <------>struct pinctrl *pinctrl; |
| <------>struct pinctrl_state *pins_default; |
| <------>struct pinctrl_state *pins_sleep; |
| <------>struct v4l2_subdev subdev; |
| <------>struct media_pad pad; |
| <------>struct v4l2_ctrl_handler ctrl_handler; |
| <------>struct v4l2_ctrl *exposure; |
| <------>struct v4l2_ctrl *anal_gain; |
| <------>struct v4l2_ctrl *digi_gain; |
| <------>struct v4l2_ctrl *hblank; |
| <------>struct v4l2_ctrl *vblank; |
| <------>struct mutex mutex; |
| <------>bool streaming; |
| <------>bool power_on; |
| <------>const struct gc2385_mode *cur_mode; |
| <------>u32 module_index; |
| <------>const char *module_facing; |
| <------>const char *module_name; |
| <------>const char *len_name; |
| }; |
| |
| #define to_gc2385(sd) container_of(sd, struct gc2385, subdev) |
| |
| |
| |
| |
| static const struct regval gc2385_global_regs[] = { |
| <------>{REG_NULL, 0x00}, |
| }; |
| |
| |
| |
| |
| |
| |
| static const struct regval gc2385_1600x1200_regs[] = { |
| <------>{0xfe, 0x00}, |
| <------>{0xfe, 0x00}, |
| <------>{0xfe, 0x00}, |
| <------>{0xf2, 0x02}, |
| <------>{0xf4, 0x03}, |
| <------>{0xf7, 0x01}, |
| <------>{0xf8, 0x28}, |
| <------>{0xf9, 0x02}, |
| <------>{0xfa, 0x08}, |
| <------>{0xfc, 0x8e}, |
| <------>{0xe7, 0xcc}, |
| <------>{0x88, 0x03}, |
| <------>{0x03, 0x04}, |
| <------>{0x04, 0x80}, |
| <------>{0x05, 0x02}, |
| <------>{0x06, 0x86}, |
| <------>{0x07, 0x00}, |
| <------>{0x08, 0x10}, |
| <------>{0x09, 0x00}, |
| <------>{0x0a, 0x04}, |
| <------>{0x0b, 0x00}, |
| <------>{0x0c, 0x02}, |
| <------>{0x17, 0xd4}, |
| <------>{0x18, 0x02}, |
| <------>{0x19, 0x17}, |
| <------>{0x1c, 0x18}, |
| <------>{0x20, 0x73}, |
| <------>{0x21, 0x38}, |
| <------>{0x22, 0xa2}, |
| <------>{0x29, 0x20}, |
| <------>{0x2f, 0x14}, |
| <------>{0x3f, 0x40}, |
| <------>{0xcd, 0x94}, |
| <------>{0xce, 0x45}, |
| <------>{0xd1, 0x0c}, |
| <------>{0xd7, 0x9b}, |
| <------>{0xd8, 0x99}, |
| <------>{0xda, 0x3b}, |
| <------>{0xd9, 0xb5}, |
| <------>{0xdb, 0x75}, |
| <------>{0xe3, 0x1b}, |
| <------>{0xe4, 0xf8}, |
| <------>{0x40, 0x22}, |
| <------>{0x43, 0x07}, |
| <------>{0x4e, 0x3c}, |
| <------>{0x4f, 0x00}, |
| <------>{0x68, 0x00}, |
| <------>{0xb0, 0x46}, |
| <------>{0xb1, 0x01}, |
| <------>{0xb2, 0x00}, |
| <------>{0xb6, 0x00}, |
| <------>{0x90, 0x01}, |
| <------>{0x92, 0x03}, |
| <------>{0x94, 0x05}, |
| <------>{0x95, 0x04}, |
| <------>{0x96, 0xb0}, |
| <------>{0x97, 0x06}, |
| <------>{0x98, 0x40}, |
| <------>{0xfe, 0x00}, |
| <------>{0xed, 0x00}, |
| <------>{0xfe, 0x03}, |
| <------>{0x01, 0x03}, |
| <------>{0x02, 0x82}, |
| <------>{0x03, 0xd0}, |
| <------>{0x04, 0x04}, |
| <------>{0x05, 0x00}, |
| <------>{0x06, 0x80}, |
| <------>{0x11, 0x2b}, |
| <------>{0x12, 0xd0}, |
| <------>{0x13, 0x07}, |
| <------>{0x15, 0x00}, |
| <------>{0x1b, 0x10}, |
| <------>{0x1c, 0x10}, |
| <------>{0x21, 0x08}, |
| <------>{0x22, 0x05}, |
| <------>{0x23, 0x13}, |
| <------>{0x24, 0x02}, |
| <------>{0x25, 0x13}, |
| <------>{0x26, 0x06}, |
| <------>{0x29, 0x06}, |
| <------>{0x2a, 0x08}, |
| <------>{0x2b, 0x06}, |
| <------>{0xfe, 0x00}, |
| <------>{REG_NULL, 0x00}, |
| }; |
| |
| static const struct gc2385_mode supported_modes[] = { |
| <------>{ |
| <------><------>.width = 1600, |
| <------><------>.height = 1200, |
| <------><------>.max_fps = { |
| <------><------><------>.numerator = 10000, |
| <------><------><------>.denominator = 300000, |
| <------><------>}, |
| <------><------>.exp_def = 0x0480, |
| <------><------>.hts_def = 0x10DC, |
| <------><------>.vts_def = 0x04F0, |
| <------><------>.reg_list = gc2385_1600x1200_regs, |
| <------>}, |
| }; |
| |
| static const s64 link_freq_menu_items[] = { |
| <------>GC2385_LINK_FREQ_MHZ |
| }; |
| |
| |
| static int gc2385_write_reg(struct i2c_client *client, u8 reg, u8 val) |
| { |
| <------>struct i2c_msg msg; |
| <------>u8 buf[2]; |
| <------>int ret; |
| |
| <------>buf[0] = reg & 0xFF; |
| <------>buf[1] = val; |
| |
| <------>msg.addr = client->addr; |
| <------>msg.flags = client->flags; |
| <------>msg.buf = buf; |
| <------>msg.len = sizeof(buf); |
| |
| <------>ret = i2c_transfer(client->adapter, &msg, 1); |
| <------>if (ret >= 0) |
| <------><------>return 0; |
| |
| <------>dev_err(&client->dev, |
| <------><------>"gc2385 write reg(0x%x val:0x%x) failed !\n", reg, val); |
| |
| <------>return ret; |
| } |
| |
| static int gc2385_write_array(struct i2c_client *client, |
| <------><------><------> const struct regval *regs) |
| { |
| <------>u32 i = 0; |
| <------>int ret = 0; |
| |
| <------>for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) |
| <------><------>ret = gc2385_write_reg(client, regs[i].addr, regs[i].val); |
| |
| <------>return ret; |
| } |
| |
| |
| static int gc2385_read_reg(struct i2c_client *client, u8 reg, u8 *val) |
| { |
| <------>struct i2c_msg msg[2]; |
| <------>u8 buf[1]; |
| <------>int ret; |
| |
| <------>buf[0] = reg & 0xFF; |
| |
| <------>msg[0].addr = client->addr; |
| <------>msg[0].flags = client->flags; |
| <------>msg[0].buf = buf; |
| <------>msg[0].len = sizeof(buf); |
| |
| <------>msg[1].addr = client->addr; |
| <------>msg[1].flags = client->flags | I2C_M_RD; |
| <------>msg[1].buf = buf; |
| <------>msg[1].len = 1; |
| |
| <------>ret = i2c_transfer(client->adapter, msg, 2); |
| <------>if (ret >= 0) { |
| <------><------>*val = buf[0]; |
| <------><------>return 0; |
| <------>} |
| |
| <------>dev_err(&client->dev, |
| <------><------>"gc2385 read reg:0x%x failed !\n", reg); |
| |
| <------>return ret; |
| } |
| |
| static int gc2385_get_reso_dist(const struct gc2385_mode *mode, |
| <------><------><------><------> struct v4l2_mbus_framefmt *framefmt) |
| { |
| <------>return abs(mode->width - framefmt->width) + |
| <------> abs(mode->height - framefmt->height); |
| } |
| |
| static const struct gc2385_mode * |
| gc2385_find_best_fit(struct v4l2_subdev_format *fmt) |
| { |
| <------>struct v4l2_mbus_framefmt *framefmt = &fmt->format; |
| <------>int dist; |
| <------>int cur_best_fit = 0; |
| <------>int cur_best_fit_dist = -1; |
| <------>unsigned int i; |
| |
| <------>for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { |
| <------><------>dist = gc2385_get_reso_dist(&supported_modes[i], framefmt); |
| <------><------>if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) { |
| <------><------><------>cur_best_fit_dist = dist; |
| <------><------><------>cur_best_fit = i; |
| <------><------>} |
| <------>} |
| |
| <------>return &supported_modes[cur_best_fit]; |
| } |
| |
| static int gc2385_set_fmt(struct v4l2_subdev *sd, |
| <------><------><------> struct v4l2_subdev_pad_config *cfg, |
| <------><------><------> struct v4l2_subdev_format *fmt) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>const struct gc2385_mode *mode; |
| <------>s64 h_blank, vblank_def; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| |
| <------>mode = gc2385_find_best_fit(fmt); |
| <------>fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| <------>fmt->format.width = mode->width; |
| <------>fmt->format.height = mode->height; |
| <------>fmt->format.field = V4L2_FIELD_NONE; |
| <------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
| #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API |
| <------><------>*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format; |
| #else |
| <------><------>mutex_unlock(&gc2385->mutex); |
| <------><------>return -ENOTTY; |
| #endif |
| <------>} else { |
| <------><------>gc2385->cur_mode = mode; |
| <------><------>h_blank = mode->hts_def - mode->width; |
| <------><------>__v4l2_ctrl_modify_range(gc2385->hblank, h_blank, |
| <------><------><------><------><------> h_blank, 1, h_blank); |
| <------><------>vblank_def = mode->vts_def - mode->height; |
| <------><------>__v4l2_ctrl_modify_range(gc2385->vblank, vblank_def, |
| <------><------><------><------><------> GC2385_VTS_MAX - mode->height, |
| <------><------><------><------><------> 1, vblank_def); |
| <------>} |
| |
| <------>mutex_unlock(&gc2385->mutex); |
| |
| <------>return 0; |
| } |
| |
| static int gc2385_get_fmt(struct v4l2_subdev *sd, |
| <------><------><------> struct v4l2_subdev_pad_config *cfg, |
| <------><------><------> struct v4l2_subdev_format *fmt) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>const struct gc2385_mode *mode = gc2385->cur_mode; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| <------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
| #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API |
| <------><------>fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad); |
| #else |
| <------><------>mutex_unlock(&gc2385->mutex); |
| <------><------>return -ENOTTY; |
| #endif |
| <------>} else { |
| <------><------>fmt->format.width = mode->width; |
| <------><------>fmt->format.height = mode->height; |
| <------><------>fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| <------><------>fmt->format.field = V4L2_FIELD_NONE; |
| <------>} |
| <------>mutex_unlock(&gc2385->mutex); |
| |
| <------>return 0; |
| } |
| |
| static int gc2385_enum_mbus_code(struct v4l2_subdev *sd, |
| <------><------><------><------> struct v4l2_subdev_pad_config *cfg, |
| <------><------><------><------> struct v4l2_subdev_mbus_code_enum *code) |
| { |
| <------>if (code->index != 0) |
| <------><------>return -EINVAL; |
| <------>code->code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| |
| <------>return 0; |
| } |
| |
| static int gc2385_enum_frame_sizes(struct v4l2_subdev *sd, |
| <------><------><------><------> struct v4l2_subdev_pad_config *cfg, |
| <------><------><------><------> struct v4l2_subdev_frame_size_enum *fse) |
| { |
| <------>if (fse->index >= ARRAY_SIZE(supported_modes)) |
| <------><------>return -EINVAL; |
| |
| <------>if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10) |
| <------><------>return -EINVAL; |
| |
| <------>fse->min_width = supported_modes[fse->index].width; |
| <------>fse->max_width = supported_modes[fse->index].width; |
| <------>fse->max_height = supported_modes[fse->index].height; |
| <------>fse->min_height = supported_modes[fse->index].height; |
| |
| <------>return 0; |
| } |
| |
| static int gc2385_g_frame_interval(struct v4l2_subdev *sd, |
| <------><------><------><------> struct v4l2_subdev_frame_interval *fi) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>const struct gc2385_mode *mode = gc2385->cur_mode; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| <------>fi->interval = mode->max_fps; |
| <------>mutex_unlock(&gc2385->mutex); |
| |
| <------>return 0; |
| } |
| |
| static void gc2385_get_module_inf(struct gc2385 *gc2385, |
| <------><------><------><------> struct rkmodule_inf *inf) |
| { |
| <------>memset(inf, 0, sizeof(*inf)); |
| <------>strlcpy(inf->base.sensor, GC2385_NAME, sizeof(inf->base.sensor)); |
| <------>strlcpy(inf->base.module, gc2385->module_name, |
| <------><------>sizeof(inf->base.module)); |
| <------>strlcpy(inf->base.lens, gc2385->len_name, sizeof(inf->base.lens)); |
| } |
| |
| static long gc2385_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>long ret = 0; |
| <------>u32 stream = 0; |
| |
| <------>switch (cmd) { |
| <------>case RKMODULE_GET_MODULE_INFO: |
| <------><------>gc2385_get_module_inf(gc2385, (struct rkmodule_inf *)arg); |
| <------><------>break; |
| <------>case RKMODULE_SET_QUICK_STREAM: |
| |
| <------><------>stream = *((u32 *)arg); |
| |
| <------><------>if (stream) { |
| <------><------><------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_SET_PAGE, |
| <------><------><------><------> GC2385_SET_PAGE_ONE); |
| <------><------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_CTRL_MODE, |
| <------><------><------><------> GC2385_MODE_STREAMING); |
| <------><------>} else { |
| <------><------><------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE); |
| <------><------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_CTRL_MODE, GC2385_MODE_SW_STANDBY); |
| <------><------>} |
| <------><------>break; |
| <------>default: |
| <------><------>ret = -ENOTTY; |
| <------><------>break; |
| <------>} |
| |
| <------>return ret; |
| } |
| |
| #ifdef CONFIG_COMPAT |
| static long gc2385_compat_ioctl32(struct v4l2_subdev *sd, |
| <------><------><------><------> unsigned int cmd, unsigned long arg) |
| { |
| <------>void __user *up = compat_ptr(arg); |
| <------>struct rkmodule_inf *inf; |
| <------>struct rkmodule_awb_cfg *cfg; |
| <------>long ret; |
| <------>u32 stream = 0; |
| |
| <------>switch (cmd) { |
| <------>case RKMODULE_GET_MODULE_INFO: |
| <------><------>inf = kzalloc(sizeof(*inf), GFP_KERNEL); |
| <------><------>if (!inf) { |
| <------><------><------>ret = -ENOMEM; |
| <------><------><------>return ret; |
| <------><------>} |
| |
| <------><------>ret = gc2385_ioctl(sd, cmd, inf); |
| <------><------>if (!ret) |
| <------><------><------>ret = copy_to_user(up, inf, sizeof(*inf)); |
| <------><------>kfree(inf); |
| <------><------>break; |
| <------>case RKMODULE_AWB_CFG: |
| <------><------>cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); |
| <------><------>if (!cfg) { |
| <------><------><------>ret = -ENOMEM; |
| <------><------><------>return ret; |
| <------><------>} |
| |
| <------><------>ret = copy_from_user(cfg, up, sizeof(*cfg)); |
| <------><------>if (!ret) |
| <------><------><------>ret = gc2385_ioctl(sd, cmd, cfg); |
| <------><------>kfree(cfg); |
| <------><------>break; |
| <------>case RKMODULE_SET_QUICK_STREAM: |
| <------><------>ret = copy_from_user(&stream, up, sizeof(u32)); |
| <------><------>if (!ret) |
| <------><------><------>ret = gc2385_ioctl(sd, cmd, &stream); |
| <------><------>break; |
| <------>default: |
| <------><------>ret = -ENOIOCTLCMD; |
| <------><------>break; |
| <------>} |
| |
| <------>return ret; |
| } |
| #endif |
| |
| static int __gc2385_start_stream(struct gc2385 *gc2385) |
| { |
| <------>int ret; |
| |
| <------>ret = gc2385_write_array(gc2385->client, gc2385->cur_mode->reg_list); |
| <------>if (ret) |
| <------><------>return ret; |
| |
| <------> |
| <------>mutex_unlock(&gc2385->mutex); |
| <------>ret = v4l2_ctrl_handler_setup(&gc2385->ctrl_handler); |
| <------>mutex_lock(&gc2385->mutex); |
| <------>if (ret) |
| <------><------>return ret; |
| <------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_SET_PAGE, |
| <------><------><------><------> GC2385_SET_PAGE_ONE); |
| <------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------> GC2385_REG_CTRL_MODE, |
| <------><------><------><------> GC2385_MODE_STREAMING); |
| <------>return ret; |
| } |
| |
| static int __gc2385_stop_stream(struct gc2385 *gc2385) |
| { |
| <------>int ret; |
| |
| <------>ret = gc2385_write_reg(gc2385->client, |
| <------><------>GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE); |
| <------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------>GC2385_REG_CTRL_MODE, GC2385_MODE_SW_STANDBY); |
| <------>return ret; |
| } |
| |
| static int gc2385_s_stream(struct v4l2_subdev *sd, int on) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>struct i2c_client *client = gc2385->client; |
| <------>int ret = 0; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| <------>on = !!on; |
| <------>if (on == gc2385->streaming) |
| <------><------>goto unlock_and_return; |
| |
| <------>if (on) { |
| <------><------>ret = pm_runtime_get_sync(&client->dev); |
| <------><------>if (ret < 0) { |
| <------><------><------>pm_runtime_put_noidle(&client->dev); |
| <------><------><------>goto unlock_and_return; |
| <------><------>} |
| |
| <------><------>ret = __gc2385_start_stream(gc2385); |
| <------><------>if (ret) { |
| <------><------><------>v4l2_err(sd, "start stream failed while write regs\n"); |
| <------><------><------>pm_runtime_put(&client->dev); |
| <------><------><------>goto unlock_and_return; |
| <------><------>} |
| <------>} else { |
| <------><------>__gc2385_stop_stream(gc2385); |
| <------><------>pm_runtime_put(&client->dev); |
| <------>} |
| |
| <------>gc2385->streaming = on; |
| |
| unlock_and_return: |
| <------>mutex_unlock(&gc2385->mutex); |
| |
| <------>return ret; |
| } |
| |
| static int gc2385_s_power(struct v4l2_subdev *sd, int on) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>struct i2c_client *client = gc2385->client; |
| <------>int ret = 0; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| |
| <------> |
| <------>if (gc2385->power_on == !!on) |
| <------><------>goto unlock_and_return; |
| |
| <------>if (on) { |
| <------><------>ret = pm_runtime_get_sync(&client->dev); |
| <------><------>if (ret < 0) { |
| <------><------><------>pm_runtime_put_noidle(&client->dev); |
| <------><------><------>goto unlock_and_return; |
| <------><------>} |
| |
| <------><------>ret = gc2385_write_array(gc2385->client, gc2385_global_regs); |
| <------><------>if (ret) { |
| <------><------><------>v4l2_err(sd, "could not set init registers\n"); |
| <------><------><------>pm_runtime_put_noidle(&client->dev); |
| <------><------><------>goto unlock_and_return; |
| <------><------>} |
| |
| <------><------>gc2385->power_on = true; |
| <------>} else { |
| <------><------>pm_runtime_put(&client->dev); |
| <------><------>gc2385->power_on = false; |
| <------>} |
| |
| unlock_and_return: |
| <------>mutex_unlock(&gc2385->mutex); |
| |
| <------>return ret; |
| } |
| |
| |
| static inline u32 gc2385_cal_delay(u32 cycles) |
| { |
| <------>return DIV_ROUND_UP(cycles, GC2385_XVCLK_FREQ / 1000 / 1000); |
| } |
| |
| static int __gc2385_power_on(struct gc2385 *gc2385) |
| { |
| <------>int ret; |
| <------>u32 delay_us; |
| <------>struct device *dev = &gc2385->client->dev; |
| |
| <------>if (!IS_ERR_OR_NULL(gc2385->pins_default)) { |
| <------><------>ret = pinctrl_select_state(gc2385->pinctrl, |
| <------><------><------><------><------> gc2385->pins_default); |
| <------><------>if (ret < 0) |
| <------><------><------>dev_err(dev, "could not set pins\n"); |
| <------>} |
| <------>ret = clk_set_rate(gc2385->xvclk, GC2385_XVCLK_FREQ); |
| <------>if (ret < 0) |
| <------><------>dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); |
| <------>if (clk_get_rate(gc2385->xvclk) != GC2385_XVCLK_FREQ) |
| <------><------>dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); |
| <------>ret = clk_prepare_enable(gc2385->xvclk); |
| <------>if (ret < 0) { |
| <------><------>dev_err(dev, "Failed to enable xvclk\n"); |
| <------><------>return ret; |
| <------>} |
| <------>if (!IS_ERR(gc2385->reset_gpio)) |
| <------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 1); |
| |
| <------>ret = regulator_bulk_enable(GC2385_NUM_SUPPLIES, gc2385->supplies); |
| <------>if (ret < 0) { |
| <------><------>dev_err(dev, "Failed to enable regulators\n"); |
| <------><------>goto disable_clk; |
| <------>} |
| |
| <------>usleep_range(1000, 1100); |
| <------>if (!IS_ERR(gc2385->reset_gpio)) |
| <------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 0); |
| |
| <------>usleep_range(500, 1000); |
| <------>if (!IS_ERR(gc2385->pwdn_gpio)) |
| <------><------>gpiod_set_value_cansleep(gc2385->pwdn_gpio, 1); |
| |
| <------> |
| <------>delay_us = gc2385_cal_delay(8192); |
| <------>usleep_range(delay_us, delay_us * 2); |
| |
| <------>return 0; |
| |
| disable_clk: |
| <------>clk_disable_unprepare(gc2385->xvclk); |
| |
| <------>return ret; |
| } |
| |
| static void __gc2385_power_off(struct gc2385 *gc2385) |
| { |
| <------>int ret = 0; |
| |
| <------>if (!IS_ERR(gc2385->pwdn_gpio)) |
| <------><------>gpiod_set_value_cansleep(gc2385->pwdn_gpio, 0); |
| <------>clk_disable_unprepare(gc2385->xvclk); |
| <------>if (!IS_ERR(gc2385->reset_gpio)) |
| <------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 1); |
| <------>if (!IS_ERR_OR_NULL(gc2385->pins_sleep)) { |
| <------><------>ret = pinctrl_select_state(gc2385->pinctrl, |
| <------><------><------><------><------> gc2385->pins_sleep); |
| <------><------>if (ret < 0) |
| <------><------><------>dev_dbg(&gc2385->client->dev, "could not set pins\n"); |
| <------>} |
| <------>regulator_bulk_disable(GC2385_NUM_SUPPLIES, gc2385->supplies); |
| } |
| |
| static int gc2385_runtime_resume(struct device *dev) |
| { |
| <------>struct i2c_client *client = to_i2c_client(dev); |
| <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| |
| <------>return __gc2385_power_on(gc2385); |
| } |
| |
| static int gc2385_runtime_suspend(struct device *dev) |
| { |
| <------>struct i2c_client *client = to_i2c_client(dev); |
| <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| |
| <------>__gc2385_power_off(gc2385); |
| |
| <------>return 0; |
| } |
| |
| #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API |
| static int gc2385_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) |
| { |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| <------>struct v4l2_mbus_framefmt *try_fmt = |
| <------><------><------><------>v4l2_subdev_get_try_format(sd, fh->pad, 0); |
| <------>const struct gc2385_mode *def_mode = &supported_modes[0]; |
| |
| <------>mutex_lock(&gc2385->mutex); |
| <------> |
| <------>try_fmt->width = def_mode->width; |
| <------>try_fmt->height = def_mode->height; |
| <------>try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; |
| <------>try_fmt->field = V4L2_FIELD_NONE; |
| |
| <------>mutex_unlock(&gc2385->mutex); |
| <------> |
| |
| <------>return 0; |
| } |
| #endif |
| |
| static int gc2385_enum_frame_interval(struct v4l2_subdev *sd, |
| <------><------><------><------> struct v4l2_subdev_pad_config *cfg, |
| <------><------><------><------> struct v4l2_subdev_frame_interval_enum *fie) |
| { |
| <------>if (fie->index >= ARRAY_SIZE(supported_modes)) |
| <------><------>return -EINVAL; |
| |
| <------>if (fie->code != MEDIA_BUS_FMT_SBGGR10_1X10) |
| <------><------>return -EINVAL; |
| |
| <------>fie->width = supported_modes[fie->index].width; |
| <------>fie->height = supported_modes[fie->index].height; |
| <------>fie->interval = supported_modes[fie->index].max_fps; |
| <------>return 0; |
| } |
| |
| static int gc2385_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id, |
| <------><------><------><------>struct v4l2_mbus_config *config) |
| { |
| <------>u32 val = 0; |
| |
| <------>val = 1 << (GC2385_LANES - 1) | |
| <------> V4L2_MBUS_CSI2_CHANNEL_0 | |
| <------> V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; |
| <------>config->type = V4L2_MBUS_CSI2_DPHY; |
| <------>config->flags = val; |
| |
| <------>return 0; |
| } |
| |
| static const struct dev_pm_ops gc2385_pm_ops = { |
| <------>SET_RUNTIME_PM_OPS(gc2385_runtime_suspend, |
| <------><------><------> gc2385_runtime_resume, NULL) |
| }; |
| |
| #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API |
| static const struct v4l2_subdev_internal_ops gc2385_internal_ops = { |
| <------>.open = gc2385_open, |
| }; |
| #endif |
| |
| static const struct v4l2_subdev_core_ops gc2385_core_ops = { |
| <------>.s_power = gc2385_s_power, |
| <------>.ioctl = gc2385_ioctl, |
| #ifdef CONFIG_COMPAT |
| <------>.compat_ioctl32 = gc2385_compat_ioctl32, |
| #endif |
| }; |
| |
| static const struct v4l2_subdev_video_ops gc2385_video_ops = { |
| <------>.s_stream = gc2385_s_stream, |
| <------>.g_frame_interval = gc2385_g_frame_interval, |
| }; |
| |
| static const struct v4l2_subdev_pad_ops gc2385_pad_ops = { |
| <------>.enum_mbus_code = gc2385_enum_mbus_code, |
| <------>.enum_frame_size = gc2385_enum_frame_sizes, |
| <------>.enum_frame_interval = gc2385_enum_frame_interval, |
| <------>.get_fmt = gc2385_get_fmt, |
| <------>.set_fmt = gc2385_set_fmt, |
| <------>.get_mbus_config = gc2385_g_mbus_config, |
| }; |
| |
| static const struct v4l2_subdev_ops gc2385_subdev_ops = { |
| <------>.core = &gc2385_core_ops, |
| <------>.video = &gc2385_video_ops, |
| <------>.pad = &gc2385_pad_ops, |
| }; |
| |
| #define GC2385_ANALOG_GAIN_1 64 |
| #define GC2385_ANALOG_GAIN_2 92 |
| #define GC2385_ANALOG_GAIN_3 127 |
| #define GC2385_ANALOG_GAIN_4 183 |
| #define GC2385_ANALOG_GAIN_5 257 |
| #define GC2385_ANALOG_GAIN_6 369 |
| #define GC2385_ANALOG_GAIN_7 531 |
| #define GC2385_ANALOG_GAIN_8 750 |
| #define GC2385_ANALOG_GAIN_9 1092 |
| |
| static int gc2385_set_gain_reg(struct gc2385 *gc2385, u32 a_gain) |
| { |
| <------>int ret = 0; |
| <------>u32 temp = 0; |
| |
| <------>ret = gc2385_write_reg(gc2385->client, |
| <------><------>GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE); |
| <------>if (a_gain >= GC2385_ANALOG_GAIN_1 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_2) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x0); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_1; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_2 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_3) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------>GC2385_REG_AGAIN, 0x1); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_2; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_3 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_4) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x2); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_3; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_4 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_5) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x3); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_4; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_5 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_6) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x4); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_5; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_6 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_7) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x5); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_6; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_7 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_8) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x74); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x6); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_7; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else if (a_gain >= GC2385_ANALOG_GAIN_8 && |
| <------><------>a_gain < GC2385_ANALOG_GAIN_9) { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x74); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x7); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_8; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} else { |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x75); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa4); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_AGAIN, 0x8); |
| <------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_9; |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff); |
| <------><------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff); |
| <------>} |
| <------>return ret; |
| } |
| |
| static int gc2385_set_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| <------>struct gc2385 *gc2385 = container_of(ctrl->handler, |
| <------><------><------><------><------> struct gc2385, ctrl_handler); |
| <------>struct i2c_client *client = gc2385->client; |
| <------>s64 max; |
| <------>int ret = 0; |
| |
| <------> |
| <------>switch (ctrl->id) { |
| <------>case V4L2_CID_VBLANK: |
| <------><------> |
| <------><------>max = gc2385->cur_mode->height + ctrl->val - 4; |
| <------><------>__v4l2_ctrl_modify_range(gc2385->exposure, |
| <------><------><------><------><------> gc2385->exposure->minimum, max, |
| <------><------><------><------><------> gc2385->exposure->step, |
| <------><------><------><------><------> gc2385->exposure->default_value); |
| <------><------>break; |
| <------>} |
| |
| <------>if (!pm_runtime_get_if_in_use(&client->dev)) |
| <------><------>return 0; |
| |
| <------>switch (ctrl->id) { |
| <------>case V4L2_CID_EXPOSURE: |
| <------><------> |
| <------><------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_SET_PAGE, |
| <------><------><------><------><------>GC2385_SET_PAGE_ONE); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_EXPOSURE_H, |
| <------><------><------><------><------>GC2385_FETCH_HIGH_BYTE_EXP(ctrl->val)); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_EXPOSURE_L, |
| <------><------><------><------><------>GC2385_FETCH_LOW_BYTE_EXP(ctrl->val)); |
| <------><------>break; |
| <------>case V4L2_CID_ANALOGUE_GAIN: |
| <------><------>ret = gc2385_set_gain_reg(gc2385, ctrl->val); |
| <------><------>break; |
| <------>case V4L2_CID_VBLANK: |
| <------><------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_SET_PAGE, |
| <------><------><------><------><------>GC2385_SET_PAGE_ONE); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_VTS_H, |
| <------><------><------><------><------>((ctrl->val - 32) >> 8) & 0xff); |
| <------><------>ret |= gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_VTS_L, |
| <------><------><------><------><------>(ctrl->val - 32) & 0xff); |
| <------><------>break; |
| <------>default: |
| <------><------>dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n", |
| <------><------><------> __func__, ctrl->id, ctrl->val); |
| <------><------>break; |
| <------>} |
| |
| <------>pm_runtime_put(&client->dev); |
| |
| <------>return ret; |
| } |
| |
| static const struct v4l2_ctrl_ops gc2385_ctrl_ops = { |
| <------>.s_ctrl = gc2385_set_ctrl, |
| }; |
| |
| static int gc2385_initialize_controls(struct gc2385 *gc2385) |
| { |
| <------>const struct gc2385_mode *mode; |
| <------>struct v4l2_ctrl_handler *handler; |
| <------>struct v4l2_ctrl *ctrl; |
| <------>s64 exposure_max, vblank_def; |
| <------>u32 h_blank; |
| <------>int ret; |
| |
| <------>handler = &gc2385->ctrl_handler; |
| <------>mode = gc2385->cur_mode; |
| <------>ret = v4l2_ctrl_handler_init(handler, 8); |
| <------>if (ret) |
| <------><------>return ret; |
| <------>handler->lock = &gc2385->mutex; |
| |
| <------>ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, |
| <------><------><------><------> 0, 0, link_freq_menu_items); |
| <------>if (ctrl) |
| <------><------>ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; |
| |
| <------>v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, |
| <------><------><------> 0, GC2385_PIXEL_RATE, 1, GC2385_PIXEL_RATE); |
| |
| <------>h_blank = mode->hts_def - mode->width; |
| <------>gc2385->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, |
| <------><------><------><------>h_blank, h_blank, 1, h_blank); |
| <------>if (gc2385->hblank) |
| <------><------>gc2385->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; |
| |
| <------>vblank_def = mode->vts_def - mode->height; |
| <------>gc2385->vblank = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops, |
| <------><------><------><------>V4L2_CID_VBLANK, vblank_def, |
| <------><------><------><------>GC2385_VTS_MAX - mode->height, |
| <------><------><------><------>1, vblank_def); |
| |
| <------>exposure_max = mode->vts_def - 4; |
| <------>gc2385->exposure = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops, |
| <------><------><------><------>V4L2_CID_EXPOSURE, GC2385_EXPOSURE_MIN, |
| <------><------><------><------>exposure_max, GC2385_EXPOSURE_STEP, |
| <------><------><------><------>mode->exp_def); |
| |
| <------>gc2385->anal_gain = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops, |
| <------><------><------><------>V4L2_CID_ANALOGUE_GAIN, GC2385_GAIN_MIN, |
| <------><------><------><------>GC2385_GAIN_MAX, GC2385_GAIN_STEP, |
| <------><------><------><------>GC2385_GAIN_DEFAULT); |
| <------>if (handler->error) { |
| <------><------>ret = handler->error; |
| <------><------>dev_err(&gc2385->client->dev, |
| <------><------><------>"Failed to init controls(%d)\n", ret); |
| <------><------>goto err_free_handler; |
| <------>} |
| |
| <------>gc2385->subdev.ctrl_handler = handler; |
| |
| <------>return 0; |
| |
| err_free_handler: |
| <------>v4l2_ctrl_handler_free(handler); |
| |
| <------>return ret; |
| } |
| |
| static int gc2385_check_sensor_id(struct gc2385 *gc2385, |
| <------><------><------><------> struct i2c_client *client) |
| { |
| <------>struct device *dev = &gc2385->client->dev; |
| <------>u16 id = 0; |
| <------>u8 reg_H = 0; |
| <------>u8 reg_L = 0; |
| <------>int ret; |
| |
| <------>ret = gc2385_write_reg(gc2385->client, |
| <------><------><------><------><------>GC2385_REG_SET_PAGE, |
| <------><------><------><------><------>GC2385_SET_PAGE_ONE); |
| <------>ret |= gc2385_read_reg(client, GC2385_REG_CHIP_ID_H, ®_H); |
| <------>ret |= gc2385_read_reg(client, GC2385_REG_CHIP_ID_L, ®_L); |
| <------>id = ((reg_H << 8) & 0xff00) | (reg_L & 0xff); |
| <------>if (id != CHIP_ID) { |
| <------><------>dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); |
| <------><------>return -ENODEV; |
| <------>} |
| <------>return ret; |
| } |
| |
| static int gc2385_configure_regulators(struct gc2385 *gc2385) |
| { |
| <------>unsigned int i; |
| |
| <------>for (i = 0; i < GC2385_NUM_SUPPLIES; i++) |
| <------><------>gc2385->supplies[i].supply = gc2385_supply_names[i]; |
| |
| <------>return devm_regulator_bulk_get(&gc2385->client->dev, |
| <------><------><------><------> GC2385_NUM_SUPPLIES, |
| <------><------><------><------> gc2385->supplies); |
| } |
| |
| static int gc2385_probe(struct i2c_client *client, |
| <------><------><------> const struct i2c_device_id *id) |
| { |
| <------>struct device *dev = &client->dev; |
| <------>struct device_node *node = dev->of_node; |
| <------>struct gc2385 *gc2385; |
| <------>struct v4l2_subdev *sd; |
| <------>char facing[2]; |
| <------>int ret; |
| |
| <------>dev_info(dev, "driver version: %02x.%02x.%02x", |
| <------><------>DRIVER_VERSION >> 16, |
| <------><------>(DRIVER_VERSION & 0xff00) >> 8, |
| <------><------>DRIVER_VERSION & 0x00ff); |
| |
| <------>gc2385 = devm_kzalloc(dev, sizeof(*gc2385), GFP_KERNEL); |
| <------>if (!gc2385) |
| <------><------>return -ENOMEM; |
| |
| <------>ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, |
| <------><------><------><------> &gc2385->module_index); |
| <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, |
| <------><------><------><------> &gc2385->module_facing); |
| <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, |
| <------><------><------><------> &gc2385->module_name); |
| <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, |
| <------><------><------><------> &gc2385->len_name); |
| <------>if (ret) { |
| <------><------>dev_err(dev, "could not get module information!\n"); |
| <------><------>return -EINVAL; |
| <------>} |
| <------>gc2385->client = client; |
| <------>gc2385->cur_mode = &supported_modes[0]; |
| |
| <------>gc2385->xvclk = devm_clk_get(dev, "xvclk"); |
| <------>if (IS_ERR(gc2385->xvclk)) { |
| <------><------>dev_err(dev, "Failed to get xvclk\n"); |
| <------><------>return -EINVAL; |
| <------>} |
| |
| <------>gc2385->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); |
| <------>if (IS_ERR(gc2385->reset_gpio)) |
| <------><------>dev_warn(dev, "Failed to get reset-gpios\n"); |
| |
| <------>gc2385->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); |
| <------>if (IS_ERR(gc2385->pwdn_gpio)) |
| <------><------>dev_warn(dev, "Failed to get pwdn-gpios\n"); |
| |
| <------>ret = gc2385_configure_regulators(gc2385); |
| <------>if (ret) { |
| <------><------>dev_err(dev, "Failed to get power regulators\n"); |
| <------><------>return ret; |
| <------>} |
| |
| <------>gc2385->pinctrl = devm_pinctrl_get(dev); |
| <------>if (!IS_ERR(gc2385->pinctrl)) { |
| <------><------>gc2385->pins_default = |
| <------><------><------>pinctrl_lookup_state(gc2385->pinctrl, |
| <------><------><------><------><------> OF_CAMERA_PINCTRL_STATE_DEFAULT); |
| <------><------>if (IS_ERR(gc2385->pins_default)) |
| <------><------><------>dev_err(dev, "could not get default pinstate\n"); |
| |
| <------><------>gc2385->pins_sleep = |
| <------><------><------>pinctrl_lookup_state(gc2385->pinctrl, |
| <------><------><------><------><------> OF_CAMERA_PINCTRL_STATE_SLEEP); |
| <------><------>if (IS_ERR(gc2385->pins_sleep)) |
| <------><------><------>dev_err(dev, "could not get sleep pinstate\n"); |
| <------>} |
| |
| <------>mutex_init(&gc2385->mutex); |
| |
| <------>sd = &gc2385->subdev; |
| <------>v4l2_i2c_subdev_init(sd, client, &gc2385_subdev_ops); |
| <------>ret = gc2385_initialize_controls(gc2385); |
| <------>if (ret) |
| <------><------>goto err_destroy_mutex; |
| |
| <------>ret = __gc2385_power_on(gc2385); |
| <------>if (ret) |
| <------><------>goto err_free_handler; |
| |
| <------>ret = gc2385_check_sensor_id(gc2385, client); |
| <------>if (ret) |
| <------><------>goto err_power_off; |
| |
| #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API |
| <------>sd->internal_ops = &gc2385_internal_ops; |
| <------>sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | |
| <------><------> V4L2_SUBDEV_FL_HAS_EVENTS; |
| #endif |
| #if defined(CONFIG_MEDIA_CONTROLLER) |
| <------>gc2385->pad.flags = MEDIA_PAD_FL_SOURCE; |
| <------>sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; |
| <------>ret = media_entity_pads_init(&sd->entity, 1, &gc2385->pad); |
| <------>if (ret < 0) |
| <------><------>goto err_power_off; |
| #endif |
| |
| <------>memset(facing, 0, sizeof(facing)); |
| <------>if (strcmp(gc2385->module_facing, "back") == 0) |
| <------><------>facing[0] = 'b'; |
| <------>else |
| <------><------>facing[0] = 'f'; |
| |
| <------>snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", |
| <------><------> gc2385->module_index, facing, |
| <------><------> GC2385_NAME, dev_name(sd->dev)); |
| <------>ret = v4l2_async_register_subdev_sensor_common(sd); |
| <------>if (ret) { |
| <------><------>dev_err(dev, "v4l2 async register subdev failed\n"); |
| <------><------>goto err_clean_entity; |
| <------>} |
| |
| <------>pm_runtime_set_active(dev); |
| <------>pm_runtime_enable(dev); |
| <------>pm_runtime_idle(dev); |
| |
| <------>return 0; |
| |
| err_clean_entity: |
| #if defined(CONFIG_MEDIA_CONTROLLER) |
| <------>media_entity_cleanup(&sd->entity); |
| #endif |
| err_power_off: |
| <------>__gc2385_power_off(gc2385); |
| err_free_handler: |
| <------>v4l2_ctrl_handler_free(&gc2385->ctrl_handler); |
| err_destroy_mutex: |
| <------>mutex_destroy(&gc2385->mutex); |
| |
| <------>return ret; |
| } |
| |
| static int gc2385_remove(struct i2c_client *client) |
| { |
| <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| <------>struct gc2385 *gc2385 = to_gc2385(sd); |
| |
| <------>v4l2_async_unregister_subdev(sd); |
| #if defined(CONFIG_MEDIA_CONTROLLER) |
| <------>media_entity_cleanup(&sd->entity); |
| #endif |
| <------>v4l2_ctrl_handler_free(&gc2385->ctrl_handler); |
| <------>mutex_destroy(&gc2385->mutex); |
| |
| <------>pm_runtime_disable(&client->dev); |
| <------>if (!pm_runtime_status_suspended(&client->dev)) |
| <------><------>__gc2385_power_off(gc2385); |
| <------>pm_runtime_set_suspended(&client->dev); |
| |
| <------>return 0; |
| } |
| |
| #if IS_ENABLED(CONFIG_OF) |
| static const struct of_device_id gc2385_of_match[] = { |
| <------>{ .compatible = "galaxycore,gc2385" }, |
| <------>{}, |
| }; |
| MODULE_DEVICE_TABLE(of, gc2385_of_match); |
| #endif |
| |
| static const struct i2c_device_id gc2385_match_id[] = { |
| <------>{ "galaxycore,gc2385", 0 }, |
| <------>{ }, |
| }; |
| |
| static struct i2c_driver gc2385_i2c_driver = { |
| <------>.driver = { |
| <------><------>.name = GC2385_NAME, |
| <------><------>.pm = &gc2385_pm_ops, |
| <------><------>.of_match_table = of_match_ptr(gc2385_of_match), |
| <------>}, |
| <------>.probe = &gc2385_probe, |
| <------>.remove = &gc2385_remove, |
| <------>.id_table = gc2385_match_id, |
| }; |
| |
| static int __init sensor_mod_init(void) |
| { |
| <------>return i2c_add_driver(&gc2385_i2c_driver); |
| } |
| |
| static void __exit sensor_mod_exit(void) |
| { |
| <------>i2c_del_driver(&gc2385_i2c_driver); |
| } |
| |
| device_initcall_sync(sensor_mod_init); |
| module_exit(sensor_mod_exit); |
| |
| MODULE_DESCRIPTION("GalaxyCore gc2385 sensor driver"); |
| MODULE_LICENSE("GPL v2"); |
| |