// SPDX-License-Identifier: GPL-2.0 /* * ov02b10 driver * * Copyright (C) 2020 Rockchip Electronics Co., Ltd. * * V0.0X01.0X00 first version. * V0.0X01.0X01 fix power on & off sequence */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../platform/rockchip/isp/rkisp_tb_helper.h" #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x01) #ifndef V4L2_CID_DIGITAL_GAIN #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN #endif #define MIPI_FREQ_360M 360000000 #define PIXEL_RATE_WITH_360M (MIPI_FREQ_360M * 2 / 10 * 4) #define OV02B10_XVCLK_FREQ 24000000 #define OV02B10_CHIP_ID 0x2B #define OV02B10_REG_CHIP_ID_H 0x02 #define OV02B10_REG_CHIP_ID_L 0x03 #define OV02B10_VTS_MAX 0xFFFF #define OV02B10_GAIN_MIN 0x10 #define OV02B10_GAIN_MAX 0x3FF #define OV02B10_GAIN_STEP 1 #define OV02B10_GAIN_DEFAULT 0x10 #define OV02B10_EXPOSURE_MIN 4 #define OV02B10_EXPOSURE_STEP 1 #define OV02B10_REG_PAGE_SELECT 0xFD #define OV02B10_REG_EXP_H 0x0E #define OV02B10_REG_EXP_L 0x0F #define OV02B10_REG_AGAIN 0x22 #define OV02B10_REG_DGAIN 0x9B #define OV02B10_REG_RESTART 0xFE #define OV02B10_REG_HTS_H 0x25 #define OV02B10_REG_HTS_L 0x26 #define OV02B10_REG_VTS_H 0x27 #define OV02B10_REG_VTS_L 0x28 #define OV02B10_REG_VBLANK_H 0x14 #define OV02B10_REG_VBLANK_L 0x15 #define OV02B10_REG_CTRL_MODE 0xFB #define OV02B10_MODE_SW_STANDBY 0x0 #define OV02B10_MODE_STREAMING BIT(0) #define OV02B10_REG_SOFTWARE_RESET 0xFC #define OV02B10_SOFTWARE_RESET_VAL 0x1 #define OV02B10_FLIP_REG 0x12 #define MIRROR_BIT_MASK BIT(0) #define FLIP_BIT_MASK BIT(1) #define OV02B10_LANES 1 #define OV02B10_NAME "ov02b10" #define OF_CAMERA_HDR_MODE "rockchip,camera-hdr-mode" #define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" #define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" #define REG_NULL 0xFF #define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) static const char * const OV02B10_supply_names[] = { "dovdd", /* Digital I/O power */ "avdd", /* Analog power */ }; #define OV02B10_NUM_SUPPLIES ARRAY_SIZE(OV02B10_supply_names) struct regval { u8 addr; u8 val; }; struct ov02b10_mode { u32 bus_fmt; u32 width; u32 height; struct v4l2_fract max_fps; u32 hts_def; u32 vts_def; u32 exp_def; const struct regval *reg_list; u32 hdr_mode; u32 vc[PAD_MAX]; }; struct ov02b10 { struct i2c_client *client; struct clk *xvclk; struct gpio_desc *reset_gpio; struct gpio_desc *pwdn_gpio; struct regulator_bulk_data supplies[OV02B10_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 v4l2_ctrl *pixel_rate; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *h_flip; struct v4l2_ctrl *v_flip; struct mutex mutex; bool streaming; bool power_on; const struct ov02b10_mode *cur_mode; u32 cfg_num; u32 module_index; const char *module_facing; const char *module_name; const char *len_name; bool has_init_exp; struct preisp_hdrae_exp_s init_hdrae_exp; u8 flip; }; #define to_ov02b10(sd) container_of(sd, struct ov02b10, subdev) /* * Xclk 24Mhz */ static const struct regval ov02b10_linear10bit_1600x1200_regs[] = { {0xfc, 0x01}, {0xfd, 0x00}, {0xfd, 0x00}, {0x24, 0x02}, {0x25, 0x06}, {0x29, 0x03}, {0x2a, 0x34}, {0x1e, 0x17}, {0x33, 0x07}, {0x35, 0x07}, {0x4a, 0x0c}, {0x3a, 0x05}, {0x3b, 0x02}, {0x3e, 0x00}, {0x46, 0x01}, {0x6d, 0x03}, {0xfd, 0x01}, {0x0e, 0x02}, {0x0f, 0x1a}, {0x18, 0x00}, {0x22, 0xff}, {0x23, 0x02}, {0x17, 0x2c}, {0x19, 0x20}, {0x1b, 0x06}, {0x1c, 0x04}, {0x20, 0x03}, {0x30, 0x01}, {0x33, 0x01}, {0x31, 0x0a}, {0x32, 0x09}, {0x38, 0x01}, {0x39, 0x01}, {0x3a, 0x01}, {0x3b, 0x01}, {0x4f, 0x04}, {0x4e, 0x05}, {0x50, 0x01}, {0x35, 0x0c}, {0x45, 0x2a}, {0x46, 0x2a}, {0x47, 0x2a}, {0x48, 0x2a}, {0x4a, 0x2c}, {0x4b, 0x2c}, {0x4c, 0x2c}, {0x4d, 0x2c}, {0x56, 0x3a}, {0x57, 0x0a}, {0x58, 0x24}, {0x59, 0x20}, {0x5a, 0x0a}, {0x5b, 0xff}, {0x37, 0x0a}, {0x42, 0x0e}, {0x68, 0x90}, {0x69, 0xcd}, {0x6a, 0x8f}, {0x7c, 0x0a}, {0x7d, 0x0a}, {0x7e, 0x0a}, {0x7f, 0x08}, {0x83, 0x14}, {0x84, 0x14}, {0x86, 0x14}, {0x87, 0x07}, {0x88, 0x0f}, {0x94, 0x02}, {0x98, 0xd1}, {0xfe, 0x02}, {0xfd, 0x03}, {0x97, 0x6c}, {0x98, 0x60}, {0x99, 0x60}, {0x9a, 0x6c}, {0xa1, 0x40}, {0xaf, 0x04}, {0xb1, 0x40}, {0xae, 0x0d}, {0x88, 0x5b}, {0x89, 0x7c}, {0xb4, 0x05}, {0x8c, 0x40}, {0x8e, 0x40}, {0x90, 0x40}, {0x92, 0x40}, {0x9b, 0x46}, {0xac, 0x40}, {0xfd, 0x00}, {0x5a, 0x15}, {0x74, 0x01}, {0xfd, 0x00}, {0x50, 0x40}, {0x52, 0xb0}, {0xfd, 0x01}, {0x03, 0x70}, {0x05, 0x10}, {0x07, 0x20}, {0x09, 0xb0}, {0xfd, 0x03}, {0xc2, 0x01}, {0xfb, 0x01}, {REG_NULL, 0x00}, }; /* * The width and height must be configured to be * the same as the current output resolution of the sensor. * The input width of the isp needs to be 16 aligned. * The input height of the isp needs to be 8 aligned. * If the width or height does not meet the alignment rules, * you can configure the cropping parameters with the following function to * crop out the appropriate resolution. * struct v4l2_subdev_pad_ops { * .get_selection * } */ static const struct ov02b10_mode supported_modes[] = { { .bus_fmt = MEDIA_BUS_FMT_SBGGR10_1X10, .width = 1600, .height = 1200, .max_fps = { .numerator = 10000, .denominator = 300000, }, .exp_def = 0x02ea, .hts_def = 0x06ac, .vts_def = 0x04c4, .reg_list = ov02b10_linear10bit_1600x1200_regs, .hdr_mode = NO_HDR, .vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0, }, }; static const s64 link_freq_menu_items[] = { MIPI_FREQ_360M, }; static int __ov02b10_power_on(struct ov02b10 *ov02b10); static int ov02b10_check_sensor_id(struct ov02b10 *ov02b10, struct i2c_client *client); /* sensor register write */ static int ov02b10_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, "ov02b10 write reg(0x%x val:0x%x) failed !\n", reg, val); return ret; } static int ov02b10_write_array(struct i2c_client *client, const struct regval *regs) { int i, ret = 0; i = 0; while (regs[i].addr != REG_NULL) { ret = ov02b10_write_reg(client, regs[i].addr, regs[i].val); if (ret) { dev_err(&client->dev, "%s failed !\n", __func__); break; } i++; } return ret; } /* sensor register read */ static int ov02b10_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, "ov02b10 read reg(0x%x val:0x%x) failed !\n", reg, *val); return ret; } static int ov02b10_get_reso_dist(const struct ov02b10_mode *mode, struct v4l2_mbus_framefmt *framefmt) { return abs(mode->width - framefmt->width) + abs(mode->height - framefmt->height); } static const struct ov02b10_mode * ov02b10_find_best_fit(struct ov02b10 *ov02b10, 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 < ov02b10->cfg_num; i++) { dist = ov02b10_get_reso_dist(&supported_modes[i], framefmt); if ((cur_best_fit_dist == -1 || dist <= cur_best_fit_dist) && (supported_modes[i].bus_fmt == framefmt->code)) { cur_best_fit_dist = dist; cur_best_fit = i; } } return &supported_modes[cur_best_fit]; } static int ov02b10_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct ov02b10 *ov02b10 = to_ov02b10(sd); const struct ov02b10_mode *mode; s64 h_blank, vblank_def; u64 dst_link_freq = 0; u64 dst_pixel_rate = 0; mutex_lock(&ov02b10->mutex); mode = ov02b10_find_best_fit(ov02b10, fmt); fmt->format.code = mode->bus_fmt; 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(&ov02b10->mutex); return -ENOTTY; #endif } else { ov02b10->cur_mode = mode; h_blank = mode->hts_def - mode->width; __v4l2_ctrl_modify_range(ov02b10->hblank, h_blank, h_blank, 1, h_blank); /* From spec: vstart is 0xc by default */ vblank_def = mode->vts_def - mode->height - 0xc; __v4l2_ctrl_modify_range(ov02b10->vblank, vblank_def, OV02B10_VTS_MAX - mode->height, 1, vblank_def); if (mode->hdr_mode == NO_HDR) { if (mode->bus_fmt == MEDIA_BUS_FMT_SBGGR10_1X10) { dst_link_freq = 0; dst_pixel_rate = PIXEL_RATE_WITH_360M; } } __v4l2_ctrl_s_ctrl_int64(ov02b10->pixel_rate, dst_pixel_rate); __v4l2_ctrl_s_ctrl(ov02b10->link_freq, dst_link_freq); } mutex_unlock(&ov02b10->mutex); return 0; } static int ov02b10_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct ov02b10 *ov02b10 = to_ov02b10(sd); const struct ov02b10_mode *mode = ov02b10->cur_mode; mutex_lock(&ov02b10->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(&ov02b10->mutex); return -ENOTTY; #endif } else { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = mode->bus_fmt; fmt->format.field = V4L2_FIELD_NONE; if (fmt->pad < PAD_MAX && mode->hdr_mode != NO_HDR) fmt->reserved[0] = mode->vc[fmt->pad]; else fmt->reserved[0] = mode->vc[PAD0]; } mutex_unlock(&ov02b10->mutex); return 0; } static int ov02b10_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { struct ov02b10 *ov02b10 = to_ov02b10(sd); if (code->index != 0) return -EINVAL; code->code = ov02b10->cur_mode->bus_fmt; return 0; } static int ov02b10_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { struct ov02b10 *ov02b10 = to_ov02b10(sd); if (fse->index >= ov02b10->cfg_num) return -EINVAL; if (fse->code != supported_modes[fse->index].bus_fmt) 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 ov02b10_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct ov02b10 *ov02b10 = to_ov02b10(sd); const struct ov02b10_mode *mode = ov02b10->cur_mode; fi->interval = mode->max_fps; return 0; } static int ov02b10_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id, struct v4l2_mbus_config *config) { struct ov02b10 *ov02b10 = to_ov02b10(sd); const struct ov02b10_mode *mode = ov02b10->cur_mode; u32 val = 0; if (mode->hdr_mode == NO_HDR) val = 1 << (OV02B10_LANES - 1) | V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; if (mode->hdr_mode == HDR_X2) val = 1 << (OV02B10_LANES - 1) | V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CONTINUOUS_CLOCK | V4L2_MBUS_CSI2_CHANNEL_1; config->type = V4L2_MBUS_CSI2_DPHY; config->flags = val; return 0; } static void ov02b10_get_module_inf(struct ov02b10 *ov02b10, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strlcpy(inf->base.sensor, OV02B10_NAME, sizeof(inf->base.sensor)); strlcpy(inf->base.module, ov02b10->module_name, sizeof(inf->base.module)); strlcpy(inf->base.lens, ov02b10->len_name, sizeof(inf->base.lens)); } static long ov02b10_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct ov02b10 *ov02b10 = to_ov02b10(sd); struct rkmodule_hdr_cfg *hdr_cfg; long ret = 0; u32 stream = 0; switch (cmd) { case PREISP_CMD_SET_HDRAE_EXP: ret = -1; break; case RKMODULE_SET_HDR_CFG: hdr_cfg = (struct rkmodule_hdr_cfg *)arg; if (hdr_cfg->hdr_mode != 0) ret = -1; break; case RKMODULE_GET_MODULE_INFO: ov02b10_get_module_inf(ov02b10, (struct rkmodule_inf *)arg); break; case RKMODULE_GET_HDR_CFG: hdr_cfg = (struct rkmodule_hdr_cfg *)arg; hdr_cfg->esp.mode = HDR_NORMAL_VC; hdr_cfg->hdr_mode = ov02b10->cur_mode->hdr_mode; break; case RKMODULE_SET_CONVERSION_GAIN: break; case RKMODULE_SET_QUICK_STREAM: stream = *((u32 *)arg); if (stream) ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_STREAMING); else ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_SW_STANDBY); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long ov02b10_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; struct rkmodule_hdr_cfg *hdr; struct preisp_hdrae_exp_s *hdrae; long ret; u32 cg = 0; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: inf = kzalloc(sizeof(*inf), GFP_KERNEL); if (!inf) { ret = -ENOMEM; return ret; } ret = ov02b10_ioctl(sd, cmd, inf); if (!ret) { ret = copy_to_user(up, inf, sizeof(*inf)); if (ret) ret = -EFAULT; } 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 = ov02b10_ioctl(sd, cmd, cfg); else ret = -EFAULT; kfree(cfg); break; case RKMODULE_GET_HDR_CFG: hdr = kzalloc(sizeof(*hdr), GFP_KERNEL); if (!hdr) { ret = -ENOMEM; return ret; } ret = ov02b10_ioctl(sd, cmd, hdr); if (!ret) { ret = copy_to_user(up, hdr, sizeof(*hdr)); if (ret) ret = -EFAULT; } kfree(hdr); break; case RKMODULE_SET_HDR_CFG: hdr = kzalloc(sizeof(*hdr), GFP_KERNEL); if (!hdr) { ret = -ENOMEM; return ret; } ret = copy_from_user(hdr, up, sizeof(*hdr)); if (!ret) ret = ov02b10_ioctl(sd, cmd, hdr); else ret = -EFAULT; kfree(hdr); break; case PREISP_CMD_SET_HDRAE_EXP: hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL); if (!hdrae) { ret = -ENOMEM; return ret; } ret = copy_from_user(hdrae, up, sizeof(*hdrae)); if (!ret) ret = ov02b10_ioctl(sd, cmd, hdrae); else ret = -EFAULT; kfree(hdrae); break; case RKMODULE_SET_CONVERSION_GAIN: ret = copy_from_user(&cg, up, sizeof(cg)); if (!ret) ret = ov02b10_ioctl(sd, cmd, &cg); else ret = -EFAULT; break; case RKMODULE_SET_QUICK_STREAM: ret = copy_from_user(&stream, up, sizeof(u32)); if (!ret) ret = ov02b10_ioctl(sd, cmd, &stream); else ret = -EFAULT; break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int __ov02b10_start_stream(struct ov02b10 *ov02b10) { int ret; ret = ov02b10_write_array(ov02b10->client, ov02b10->cur_mode->reg_list); if (ret) return ret; /* In case these controls are set before streaming */ ret = __v4l2_ctrl_handler_setup(&ov02b10->ctrl_handler); if (ret) return ret; if (ov02b10->has_init_exp && ov02b10->cur_mode->hdr_mode != NO_HDR) { ret = ov02b10_ioctl(&ov02b10->subdev, PREISP_CMD_SET_HDRAE_EXP, &ov02b10->init_hdrae_exp); if (ret) { dev_err(&ov02b10->client->dev, "init exp fail in hdr mode\n"); return ret; } } return ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_STREAMING); } static int __ov02b10_stop_stream(struct ov02b10 *ov02b10) { ov02b10->has_init_exp = false; return ov02b10_write_reg(ov02b10->client, OV02B10_REG_CTRL_MODE, OV02B10_MODE_SW_STANDBY); } static int ov02b10_s_stream(struct v4l2_subdev *sd, int on) { struct ov02b10 *ov02b10 = to_ov02b10(sd); struct i2c_client *client = ov02b10->client; int ret = 0; mutex_lock(&ov02b10->mutex); on = !!on; if (on == ov02b10->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 = __ov02b10_start_stream(ov02b10); if (ret) { v4l2_err(sd, "start stream failed while write regs\n"); pm_runtime_put(&client->dev); goto unlock_and_return; } } else { __ov02b10_stop_stream(ov02b10); pm_runtime_put(&client->dev); } ov02b10->streaming = on; unlock_and_return: mutex_unlock(&ov02b10->mutex); return ret; } static int ov02b10_s_power(struct v4l2_subdev *sd, int on) { struct ov02b10 *ov02b10 = to_ov02b10(sd); struct i2c_client *client = ov02b10->client; int ret = 0; mutex_lock(&ov02b10->mutex); /* If the power state is not modified - no work to do. */ if (ov02b10->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 |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_SOFTWARE_RESET, OV02B10_SOFTWARE_RESET_VAL); usleep_range(100, 200); ov02b10->power_on = true; } else { pm_runtime_put(&client->dev); ov02b10->power_on = false; } unlock_and_return: mutex_unlock(&ov02b10->mutex); return ret; } static int ov02b10_enable_regulators(struct ov02b10 *ov02b10, struct regulator_bulk_data *consumers) { int i, j; int ret = 0; struct device *dev = &ov02b10->client->dev; int num_consumers = OV02B10_NUM_SUPPLIES; for (i = 0; i < num_consumers; i++) { ret = regulator_enable(consumers[i].consumer); if (ret < 0) { dev_err(dev, "Failed to enable regulator: %s\n", consumers[i].supply); goto err; } } return 0; err: for (j = 0; j < i; j++) regulator_disable(consumers[j].consumer); return ret; } static int __ov02b10_power_on(struct ov02b10 *ov02b10) { int ret; struct device *dev = &ov02b10->client->dev; if (!IS_ERR_OR_NULL(ov02b10->pins_default)) { ret = pinctrl_select_state(ov02b10->pinctrl, ov02b10->pins_default); if (ret < 0) dev_err(dev, "could not set pins\n"); } ret = clk_set_rate(ov02b10->xvclk, OV02B10_XVCLK_FREQ); if (ret < 0) dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); if (clk_get_rate(ov02b10->xvclk) != OV02B10_XVCLK_FREQ) dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); if (!IS_ERR(ov02b10->pwdn_gpio)) gpiod_direction_output(ov02b10->pwdn_gpio, 1); if (!IS_ERR(ov02b10->reset_gpio)) gpiod_direction_output(ov02b10->reset_gpio, 1); ret = ov02b10_enable_regulators(ov02b10, ov02b10->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators\n"); goto disable_clk; } usleep_range(100, 110); ret = clk_prepare_enable(ov02b10->xvclk); if (ret < 0) { dev_err(dev, "Failed to enable xvclk\n"); return ret; } /* From spec: delay from power stable to pwdn off: 5ms */ usleep_range(5000, 6000); if (!IS_ERR(ov02b10->pwdn_gpio)) gpiod_direction_output(ov02b10->pwdn_gpio, 0); /* From spec: delay from pwdn off to reset off */ usleep_range(4000, 5000); if (!IS_ERR(ov02b10->reset_gpio)) gpiod_direction_output(ov02b10->reset_gpio, 0); /* From spec: 5ms for SCCB initialization */ usleep_range(5000, 6000); return 0; disable_clk: clk_disable_unprepare(ov02b10->xvclk); return ret; } static void __ov02b10_power_off(struct ov02b10 *ov02b10) { int ret; struct device *dev = &ov02b10->client->dev; if (!IS_ERR(ov02b10->reset_gpio)) gpiod_direction_output(ov02b10->reset_gpio, 1); clk_disable_unprepare(ov02b10->xvclk); if (!IS_ERR(ov02b10->pwdn_gpio)) gpiod_direction_output(ov02b10->pwdn_gpio, 1); if (!IS_ERR_OR_NULL(ov02b10->pins_sleep)) { ret = pinctrl_select_state(ov02b10->pinctrl, ov02b10->pins_sleep); if (ret < 0) dev_dbg(dev, "could not set pins\n"); } regulator_bulk_disable(OV02B10_NUM_SUPPLIES, ov02b10->supplies); } static int __maybe_unused ov02b10_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov02b10 *ov02b10 = to_ov02b10(sd); return __ov02b10_power_on(ov02b10); } static int __maybe_unused ov02b10_runtime_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov02b10 *ov02b10 = to_ov02b10(sd); __ov02b10_power_off(ov02b10); return 0; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int ov02b10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct ov02b10 *ov02b10 = to_ov02b10(sd); struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->pad, 0); const struct ov02b10_mode *def_mode = &supported_modes[0]; mutex_lock(&ov02b10->mutex); /* Initialize try_fmt */ try_fmt->width = def_mode->width; try_fmt->height = def_mode->height; try_fmt->code = def_mode->bus_fmt; try_fmt->field = V4L2_FIELD_NONE; mutex_unlock(&ov02b10->mutex); /* No crop or compose */ return 0; } #endif static int ov02b10_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_interval_enum *fie) { struct ov02b10 *ov02b10 = to_ov02b10(sd); if (fie->index >= ov02b10->cfg_num) return -EINVAL; fie->code = supported_modes[fie->index].bus_fmt; fie->width = supported_modes[fie->index].width; fie->height = supported_modes[fie->index].height; fie->interval = supported_modes[fie->index].max_fps; fie->reserved[0] = supported_modes[fie->index].hdr_mode; return 0; } static const struct dev_pm_ops ov02b10_pm_ops = { SET_RUNTIME_PM_OPS(ov02b10_runtime_suspend, ov02b10_runtime_resume, NULL) }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops ov02b10_internal_ops = { .open = ov02b10_open, }; #endif static const struct v4l2_subdev_core_ops ov02b10_core_ops = { .s_power = ov02b10_s_power, .ioctl = ov02b10_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = ov02b10_compat_ioctl32, #endif }; static const struct v4l2_subdev_video_ops ov02b10_video_ops = { .s_stream = ov02b10_s_stream, .g_frame_interval = ov02b10_g_frame_interval, }; static const struct v4l2_subdev_pad_ops ov02b10_pad_ops = { .enum_mbus_code = ov02b10_enum_mbus_code, .enum_frame_size = ov02b10_enum_frame_sizes, .enum_frame_interval = ov02b10_enum_frame_interval, .get_fmt = ov02b10_get_fmt, .set_fmt = ov02b10_set_fmt, .get_mbus_config = ov02b10_g_mbus_config, }; static const struct v4l2_subdev_ops ov02b10_subdev_ops = { .core = &ov02b10_core_ops, .video = &ov02b10_video_ops, .pad = &ov02b10_pad_ops, }; static int ov02b10_set_ctrl(struct v4l2_ctrl *ctrl) { struct ov02b10 *ov02b10 = container_of(ctrl->handler, struct ov02b10, ctrl_handler); struct i2c_client *client = ov02b10->client; s64 max; int ret = 0; u8 again = 0, dgain = 0; /* Propagate change of current control to all related controls */ switch (ctrl->id) { case V4L2_CID_VBLANK: /* Update max exposure while meeting expected vblanking */ max = ov02b10->cur_mode->height + ctrl->val - 7; __v4l2_ctrl_modify_range(ov02b10->exposure, ov02b10->exposure->minimum, max, ov02b10->exposure->step, ov02b10->exposure->default_value); break; } if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x1); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_EXP_H, (ctrl->val >> 8) & 0xFF); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_EXP_L, ctrl->val & 0xFF); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_RESTART, 0x02); dev_dbg(&client->dev, "set exposure 0x%x\n", ctrl->val); break; case V4L2_CID_ANALOGUE_GAIN: if (ctrl->val > 248) { again = 248; dgain = (ctrl->val * 64 / 248 > 0xff) ? 0xff : ctrl->val * 64 / 248; } else { dgain = 64; again = ctrl->val; } ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x01); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_AGAIN, again); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x03); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_DGAIN, dgain); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_RESTART, 0x02); dev_dbg(&client->dev, "set gain 0x%x, again = %#x(%u), dgain = %#x(%u)\n", ctrl->val, again, again, dgain, dgain); break; case V4L2_CID_VBLANK: ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x01); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_VBLANK_H, (ctrl->val >> 8) & 0xFF); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_VBLANK_L, ctrl->val & 0xFF); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_RESTART, 0x02); dev_dbg(&client->dev, "set vblank 0x%x\n", ctrl->val); break; case V4L2_CID_TEST_PATTERN: break; case V4L2_CID_HFLIP: if (ctrl->val) ov02b10->flip |= MIRROR_BIT_MASK; else ov02b10->flip &= ~MIRROR_BIT_MASK; ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x01); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_FLIP_REG, ov02b10->flip); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_RESTART, 0x02); dev_dbg(&client->dev, "set hflip 0x%x\n", ov02b10->flip); break; case V4L2_CID_VFLIP: if (ctrl->val) ov02b10->flip |= FLIP_BIT_MASK; else ov02b10->flip &= ~FLIP_BIT_MASK; ret = ov02b10_write_reg(ov02b10->client, OV02B10_REG_PAGE_SELECT, 0x01); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_FLIP_REG, ov02b10->flip); ret |= ov02b10_write_reg(ov02b10->client, OV02B10_REG_RESTART, 0x02); dev_dbg(&client->dev, "set vflip 0x%x\n", ov02b10->flip); 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 ov02b10_ctrl_ops = { .s_ctrl = ov02b10_set_ctrl, }; static int ov02b10_initialize_controls(struct ov02b10 *ov02b10) { const struct ov02b10_mode *mode; struct v4l2_ctrl_handler *handler; s64 exposure_max, vblank_def; u32 h_blank; int ret; u64 dst_link_freq = 0; u64 dst_pixel_rate = 0; handler = &ov02b10->ctrl_handler; mode = ov02b10->cur_mode; ret = v4l2_ctrl_handler_init(handler, 9); if (ret) return ret; handler->lock = &ov02b10->mutex; ov02b10->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, 1, 0, link_freq_menu_items); if (ov02b10->cur_mode->bus_fmt == MEDIA_BUS_FMT_SBGGR10_1X10) { dst_link_freq = 0; dst_pixel_rate = PIXEL_RATE_WITH_360M; } /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ ov02b10->pixel_rate = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 0, PIXEL_RATE_WITH_360M, 1, dst_pixel_rate); __v4l2_ctrl_s_ctrl(ov02b10->link_freq, dst_link_freq); h_blank = mode->hts_def - mode->width; ov02b10->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, h_blank, h_blank, 1, h_blank); if (ov02b10->hblank) ov02b10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; /* From spec: vstart is 0xc by default */ vblank_def = mode->vts_def - mode->height - 0xc; ov02b10->vblank = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops, V4L2_CID_VBLANK, vblank_def, OV02B10_VTS_MAX - mode->height, 1, vblank_def); exposure_max = mode->vts_def - 7; ov02b10->exposure = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops, V4L2_CID_EXPOSURE, OV02B10_EXPOSURE_MIN, exposure_max, OV02B10_EXPOSURE_STEP, mode->exp_def); ov02b10->anal_gain = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, OV02B10_GAIN_MIN, OV02B10_GAIN_MAX, OV02B10_GAIN_STEP, OV02B10_GAIN_DEFAULT); ov02b10->h_flip = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); ov02b10->v_flip = v4l2_ctrl_new_std(handler, &ov02b10_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); ov02b10->flip = 0; if (handler->error) { ret = handler->error; dev_err(&ov02b10->client->dev, "Failed to init controls(%d)\n", ret); goto err_free_handler; } ov02b10->subdev.ctrl_handler = handler; ov02b10->has_init_exp = false; return 0; err_free_handler: v4l2_ctrl_handler_free(handler); return ret; } static int ov02b10_check_sensor_id(struct ov02b10 *ov02b10, struct i2c_client *client) { struct device *dev = &ov02b10->client->dev; u8 id_h = 0, id_l = 0, id = 0; int ret; ret = ov02b10_read_reg(client, OV02B10_REG_CHIP_ID_H, &id_h); ret |= ov02b10_read_reg(client, OV02B10_REG_CHIP_ID_L, &id_l); id = SENSOR_ID(id_h, id_l); if (id != OV02B10_CHIP_ID) { dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); return -ENODEV; } dev_info(dev, "Detected OV%06x sensor\n", OV02B10_CHIP_ID); return 0; } static int ov02b10_configure_regulators(struct ov02b10 *ov02b10) { unsigned int i; for (i = 0; i < OV02B10_NUM_SUPPLIES; i++) ov02b10->supplies[i].supply = OV02B10_supply_names[i]; return devm_regulator_bulk_get(&ov02b10->client->dev, OV02B10_NUM_SUPPLIES, ov02b10->supplies); } static int ov02b10_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct ov02b10 *ov02b10; struct v4l2_subdev *sd; char facing[2]; int ret; u32 i, hdr_mode = 0; dev_info(dev, "driver version: %02x.%02x.%02x", DRIVER_VERSION >> 16, (DRIVER_VERSION & 0xff00) >> 8, DRIVER_VERSION & 0x00ff); ov02b10 = devm_kzalloc(dev, sizeof(*ov02b10), GFP_KERNEL); if (!ov02b10) return -ENOMEM; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &ov02b10->module_index); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &ov02b10->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &ov02b10->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &ov02b10->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } ret = of_property_read_u32(node, OF_CAMERA_HDR_MODE, &hdr_mode); if (ret) { hdr_mode = NO_HDR; dev_warn(dev, " Get hdr mode failed! no hdr default\n"); } ov02b10->cfg_num = ARRAY_SIZE(supported_modes); for (i = 0; i < ov02b10->cfg_num; i++) { if (hdr_mode == supported_modes[i].hdr_mode) { ov02b10->cur_mode = &supported_modes[i]; break; } } ov02b10->client = client; ov02b10->xvclk = devm_clk_get(dev, "xvclk"); if (IS_ERR(ov02b10->xvclk)) { dev_err(dev, "Failed to get xvclk\n"); return -EINVAL; } ov02b10->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS); if (IS_ERR(ov02b10->reset_gpio)) dev_warn(dev, "Failed to get reset-gpios\n"); ov02b10->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_ASIS); if (IS_ERR(ov02b10->pwdn_gpio)) dev_warn(dev, "Failed to get pwdn-gpios\n"); ov02b10->pinctrl = devm_pinctrl_get(dev); if (!IS_ERR(ov02b10->pinctrl)) { ov02b10->pins_default = pinctrl_lookup_state(ov02b10->pinctrl, OF_CAMERA_PINCTRL_STATE_DEFAULT); if (IS_ERR(ov02b10->pins_default)) dev_err(dev, "could not get default pinstate\n"); ov02b10->pins_sleep = pinctrl_lookup_state(ov02b10->pinctrl, OF_CAMERA_PINCTRL_STATE_SLEEP); if (IS_ERR(ov02b10->pins_sleep)) dev_err(dev, "could not get sleep pinstate\n"); } else { dev_err(dev, "no pinctrl\n"); } ret = ov02b10_configure_regulators(ov02b10); if (ret) { dev_err(dev, "Failed to get power regulators\n"); return ret; } mutex_init(&ov02b10->mutex); sd = &ov02b10->subdev; v4l2_i2c_subdev_init(sd, client, &ov02b10_subdev_ops); ret = ov02b10_initialize_controls(ov02b10); if (ret) goto err_destroy_mutex; ret = __ov02b10_power_on(ov02b10); if (ret) goto err_free_handler; ret = ov02b10_check_sensor_id(ov02b10, client); if (ret) goto err_power_off; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API sd->internal_ops = &ov02b10_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; #endif #if defined(CONFIG_MEDIA_CONTROLLER) ov02b10->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &ov02b10->pad); if (ret < 0) goto err_power_off; #endif memset(facing, 0, sizeof(facing)); if (strcmp(ov02b10->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", ov02b10->module_index, facing, OV02B10_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: __ov02b10_power_off(ov02b10); err_free_handler: v4l2_ctrl_handler_free(&ov02b10->ctrl_handler); err_destroy_mutex: mutex_destroy(&ov02b10->mutex); return ret; } static int ov02b10_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov02b10 *ov02b10 = to_ov02b10(sd); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif v4l2_ctrl_handler_free(&ov02b10->ctrl_handler); mutex_destroy(&ov02b10->mutex); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) __ov02b10_power_off(ov02b10); pm_runtime_set_suspended(&client->dev); return 0; } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id ov02b10_of_match[] = { { .compatible = "ovti,ov02b10" }, {}, }; MODULE_DEVICE_TABLE(of, ov02b10_of_match); #endif static const struct i2c_device_id ov02b10_match_id[] = { { "ovti,ov02b10", 0 }, { }, }; static struct i2c_driver ov02b10_i2c_driver = { .driver = { .name = OV02B10_NAME, .pm = &ov02b10_pm_ops, .of_match_table = of_match_ptr(ov02b10_of_match), }, .probe = &ov02b10_probe, .remove = &ov02b10_remove, .id_table = ov02b10_match_id, }; #ifdef CONFIG_ROCKCHIP_THUNDER_BOOT module_i2c_driver(ov02b10_i2c_driver); #else static int __init sensor_mod_init(void) { return i2c_add_driver(&ov02b10_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&ov02b10_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); #endif MODULE_DESCRIPTION("OmniVision ov02b10 sensor driver"); MODULE_LICENSE("GPL v2");