// SPDX-License-Identifier: GPL-2.0 /* * gc1054 sensor driver * * Copyright (C) 2021 Rockchip Electronics Co., Ltd. * * V0.0X01.0X00 first version. * V0.0X01.0X01 add quick stream on/off */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x02) #ifndef V4L2_CID_DIGITAL_GAIN #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN #endif #define GC1054_NAME "gc1054" #define GC1054_MEDIA_BUS_FMT MEDIA_BUS_FMT_SRGGB10_1X10 #define MIPI_FREQ_297M 297000000 #define GC1054_XVCLK_FREQ 27000000 #define GC1054_PIXEL_RATE (47250000) #define GC1054_XVCLK_FREQ 27000000 #define GC1054_PAGE_SELECT 0xFE #define GC1054_REG_CHIP_ID_H 0xF0 #define GC1054_REG_CHIP_ID_L 0xF1 #define GC1054_REG_EXP_H 0x03 #define GC1054_REG_EXP_L 0x04 #define GC1054_REG_VTS_H 0x41 #define GC1054_REG_VTS_L 0x42 #define GC1054_REG_CTRL_MODE 0x3E #define GC1054_MODE_SW_STANDBY 0x11 #define GC1054_MODE_STREAMING 0x91 #define REG_NULL 0xFF #define GC1054_CHIP_ID 0x1054 #define GC1054_VTS_MAX 0x3FFF #define GC1054_HTS_MAX 0xFFF #define GC1054_EXPOSURE_MAX 0x3FFF #define GC1054_EXPOSURE_MIN 1 #define GC1054_EXPOSURE_STEP 1 #define GC1054_GAIN_MIN 0x40 #define GC1054_GAIN_MAX 0x2000 #define GC1054_GAIN_STEP 1 #define GC1054_GAIN_DEFAULT 64 #define GC1054_LANES 2 #define GC1054_REG_VALUE_08BIT 1 #define GC1054_REG_VALUE_16BIT 2 #define GC1054_REG_VALUE_24BIT 3 #define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) #define GC1054_FLIP_MIRROR_REG 0x17 #define GC_MIRROR_BIT_MASK BIT(0) #define GC_FLIP_BIT_MASK BIT(1) #define PIX_FORMAT MEDIA_BUS_FMT_SRGGB10_1X10 #define GC1054_NAME "gc1054" static const char * const gc1054_supply_names[] = { "vcc2v8_dvp", /* Analog power */ "vcc1v8_dvp", /* Digital I/O power */ "vdd1v5_dvp", /* Digital core power */ }; #define GC1054_NUM_SUPPLIES ARRAY_SIZE(gc1054_supply_names) #define to_gc1054(sd) container_of(sd, struct gc1054, subdev) enum gc1054_max_pad { PAD0, PAD_MAX, }; struct regval { u8 addr; u8 val; }; struct gc1054_mode { u32 width; u32 height; struct v4l2_fract max_fps; u32 hts_def; u32 vts_def; u32 exp_def; u32 hdr_mode; const struct regval *reg_list; }; struct gc1054 { struct i2c_client *client; struct clk *xvclk; struct gpio_desc *reset_gpio; struct gpio_desc *pwdn_gpio; struct regulator_bulk_data supplies[GC1054_NUM_SUPPLIES]; 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 *test_pattern; struct mutex mutex; bool streaming; bool power_on; const struct gc1054_mode *cur_mode; u32 module_index; const char *module_facing; const char *module_name; const char *len_name; }; #define to_gc1054(sd) container_of(sd, struct gc1054, subdev) /* * window_size=1920*1080 mipi@2lane * mclk=24mhz,mipi_clk=594Mbps * pixel_line_total=2200,line_frame_total=1125 * row_time=29.629us,frame_rate=30fps */ static const struct regval gc1054_1280x720_regs_dvp[] = { //window_size=1920*1080 //mclk=27mhz,pclk=47.25mhz //pixel_line_total=2200,line_frame_total=1125 //row_time=29.629us,frame_rate=30fps /****system****/ {0xf2, 0x00}, {0xf6, 0x00}, {0xfc, 0x04}, {0xf7, 0x01}, {0xf8, 0x0d}, {0xf9, 0x00}, {0xfa, 0x80}, {0xfc, 0x0e}, {0xfe, 0x00}, {0x03, 0x02}, {0x04, 0xa6}, {0x05, 0x03}, {0x06, 0x94}, {0x07, 0x00}, {0x08, 0x0a}, {0x09, 0x00}, {0x0a, 0x04}, {0x0b, 0x00}, {0x0c, 0x00}, {0x0d, 0x02}, {0x0e, 0xd4}, {0x0f, 0x05}, {0x10, 0x08}, {0x17, 0xc0}, {0x18, 0x02}, {0x19, 0x08}, {0x1a, 0x18}, {0x1d, 0x12}, {0x1e, 0x50}, {0x1f, 0x80}, {0x21, 0x30}, {0x23, 0xf8}, {0x25, 0x10}, {0x28, 0x20}, {0x34, 0x0a}, {0x3c, 0x10}, {0x3d, 0x0e}, {0xcc, 0x8e}, {0xcd, 0x9a}, {0xcf, 0x70}, {0xd0, 0xa9}, {0xd1, 0xc5}, {0xd2, 0xed}, {0xd8, 0x3c}, {0xd9, 0x7a}, {0xda, 0x12}, {0xdb, 0x50}, {0xde, 0x0c}, {0xe3, 0x60}, {0xe4, 0x78}, {0xfe, 0x01}, {0xe3, 0x01}, {0xe6, 0x10}, {0xfe, 0x01}, {0x80, 0x50}, {0x88, 0x23}, {0x89, 0x03}, {0x90, 0x01}, {0x92, 0x02}, {0x94, 0x03}, {0x95, 0x02}, {0x96, 0xd0}, {0x97, 0x05}, {0x98, 0x00}, {0xfe, 0x01}, {0x40, 0x22}, {0x43, 0x03}, {0x4e, 0x3c}, {0x4f, 0x00}, {0x60, 0x00}, {0x61, 0x80}, {0xfe, 0x01}, {0xb0, 0x48}, {0xb1, 0x01}, {0xb2, 0x00}, {0xb6, 0x00}, {0xfe, 0x02}, {0x01, 0x00}, {0x02, 0x01}, {0x03, 0x02}, {0x04, 0x03}, {0x05, 0x04}, {0x06, 0x05}, {0x07, 0x06}, {0x08, 0x0e}, {0x09, 0x16}, {0x0a, 0x1e}, {0x0b, 0x36}, {0x0c, 0x3e}, {0x0d, 0x56}, {0xfe, 0x02}, {0xb0, 0x00}, {0xb1, 0x00}, {0xb2, 0x00}, {0xb3, 0x11}, {0xb4, 0x22}, {0xb5, 0x54}, {0xb6, 0xb8}, {0xb7, 0x60}, {0xb9, 0x00}, {0xba, 0xc0}, {0xc0, 0x20}, {0xc1, 0x2d}, {0xc2, 0x40}, {0xc3, 0x5b}, {0xc4, 0x80}, {0xc5, 0xb5}, {0xc6, 0x00}, {0xc7, 0x6a}, {0xc8, 0x00}, {0xc9, 0xd4}, {0xca, 0x00}, {0xcb, 0xa8}, {0xcc, 0x00}, {0xcd, 0x50}, {0xce, 0x00}, {0xcf, 0xa1}, {0xfe, 0x02}, {0x54, 0xf7}, {0x55, 0xf0}, {0x56, 0x00}, {0x57, 0x00}, {0x58, 0x00}, {0x5a, 0x04}, {0xfe, 0x04}, {0x81, 0x8a}, {0xfe, 0x03}, {0x01, 0x00}, {0x02, 0x00}, {0x03, 0x00}, {0x10, 0x11}, {0x15, 0x00}, {0x40, 0x01}, {0x41, 0x00}, {0xfe, 0x00}, {0xf2, 0x0f}, {REG_NULL, 0x00}, }; static const struct gc1054_mode supported_modes[] = { { .width = 1280, .height = 720, .max_fps = { .numerator = 10000, .denominator = 250000, }, .exp_def = 0x2D0, .hts_def = 0x834, .vts_def = 0x2ee, .reg_list = gc1054_1280x720_regs_dvp, .hdr_mode = NO_HDR, }, }; /* sensor register write */ static int gc1054_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, "gc1054 write reg(0x%x val:0x%x) failed !\n", reg, val); return ret; } static int gc1054_write_array(struct i2c_client *client, const struct regval *regs) { int i, ret = 0; i = 0; while (regs[i].addr != REG_NULL) { ret = gc1054_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 gc1054_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, "gc1054 read reg(0x%x val:0x%x) failed !\n", reg, *val); return ret; } static int gc1054_get_reso_dist(const struct gc1054_mode *mode, struct v4l2_mbus_framefmt *framefmt) { return abs(mode->width - framefmt->width) + abs(mode->height - framefmt->height); } static const struct gc1054_mode * gc1054_find_best_fit(struct gc1054 *gc1054, 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 = gc1054_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 gc1054_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct gc1054 *gc1054 = to_gc1054(sd); const struct gc1054_mode *mode; s64 h_blank, vblank_def; mutex_lock(&gc1054->mutex); mode = gc1054_find_best_fit(gc1054, fmt); fmt->format.code = PIX_FORMAT; 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(&gc1054->mutex); return -ENOTTY; #endif } else { gc1054->cur_mode = mode; h_blank = mode->hts_def - mode->width; __v4l2_ctrl_modify_range(gc1054->hblank, h_blank, h_blank, 1, h_blank); vblank_def = mode->vts_def - mode->height; __v4l2_ctrl_modify_range(gc1054->vblank, vblank_def, GC1054_VTS_MAX - mode->height, 1, vblank_def); } mutex_unlock(&gc1054->mutex); return 0; } static int gc1054_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct gc1054 *gc1054 = to_gc1054(sd); const struct gc1054_mode *mode = gc1054->cur_mode; mutex_lock(&gc1054->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(&gc1054->mutex); return -ENOTTY; #endif } else { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = PIX_FORMAT; fmt->format.field = V4L2_FIELD_NONE; } mutex_unlock(&gc1054->mutex); return 0; } #define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4) #define DST_WIDTH 1280 #define DST_HEIGHT 720 static int gc1054_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct gc1054 *gc1054 = to_gc1054(sd); if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) { sel->r.left = CROP_START(gc1054->cur_mode->width, DST_WIDTH); sel->r.width = DST_WIDTH; sel->r.top = CROP_START(gc1054->cur_mode->height, DST_HEIGHT); sel->r.height = DST_HEIGHT; return 0; } return -EINVAL; } static int gc1054_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 = PIX_FORMAT; return 0; } static int gc1054_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 != PIX_FORMAT) 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 void gc1054_get_module_inf(struct gc1054 *gc1054, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strscpy(inf->base.sensor, GC1054_NAME, sizeof(inf->base.sensor)); strscpy(inf->base.module, gc1054->module_name, sizeof(inf->base.module)); strscpy(inf->base.lens, gc1054->len_name, sizeof(inf->base.lens)); } static long gc1054_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct gc1054 *gc1054 = to_gc1054(sd); struct rkmodule_hdr_cfg *hdr_cfg; long ret = 0; u32 stream = 0; switch (cmd) { case PREISP_CMD_SET_HDRAE_EXP: return -1; case RKMODULE_GET_HDR_CFG: hdr_cfg = (struct rkmodule_hdr_cfg *)arg; hdr_cfg->esp.mode = HDR_NORMAL_VC; hdr_cfg->hdr_mode = gc1054->cur_mode->hdr_mode; break; case RKMODULE_SET_HDR_CFG: hdr_cfg = (struct rkmodule_hdr_cfg *)arg; if (hdr_cfg->hdr_mode != 0) ret = -1; break; case RKMODULE_SET_CONVERSION_GAIN: break; case RKMODULE_GET_MODULE_INFO: gc1054_get_module_inf(gc1054, (struct rkmodule_inf *)arg); break; case RKMODULE_SET_QUICK_STREAM: stream = *((u32 *)arg); if (stream) ret = gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE, GC1054_MODE_STREAMING); else ret = gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE, GC1054_MODE_SW_STANDBY); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long gc1054_compat_ioctl32(struct v4l2_subdev *sd, unsigned int cmd, unsigned long arg) { void __user *up = compat_ptr(arg); struct rkmodule_inf *inf; struct rkmodule_hdr_cfg *hdr; struct preisp_hdrae_exp_s *hdrae; long ret = 0; u32 stream = 0; u32 cg = 0; switch (cmd) { case RKMODULE_GET_HDR_CFG: hdr = kzalloc(sizeof(*hdr), GFP_KERNEL); if (!hdr) { ret = -ENOMEM; return ret; } ret = gc1054_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; } if (copy_from_user(hdr, up, sizeof(*hdr))) { kfree(hdr); return -EFAULT; } gc1054_ioctl(sd, cmd, hdr); kfree(hdr); break; case RKMODULE_SET_CONVERSION_GAIN: if (copy_from_user(&cg, up, sizeof(cg))) return -EFAULT; gc1054_ioctl(sd, cmd, &cg); break; case RKMODULE_GET_MODULE_INFO: inf = kzalloc(sizeof(*inf), GFP_KERNEL); if (!inf) { ret = -ENOMEM; return ret; } ret = gc1054_ioctl(sd, cmd, inf); if (!ret) { ret = copy_to_user(up, inf, sizeof(*inf)); if (ret) ret = -EFAULT; } kfree(inf); break; case RKMODULE_SET_QUICK_STREAM: if (copy_from_user(&stream, up, sizeof(u32))) return -EFAULT; gc1054_ioctl(sd, cmd, &stream); break; case PREISP_CMD_SET_HDRAE_EXP: hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL); if (!hdrae) { ret = -ENOMEM; return ret; } if (copy_from_user(hdrae, up, sizeof(*hdrae))) { kfree(hdrae); return -EFAULT; } gc1054_ioctl(sd, cmd, hdrae); kfree(hdrae); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int __gc1054_start_stream(struct gc1054 *gc1054) { int ret; ret = gc1054_write_array(gc1054->client, gc1054->cur_mode->reg_list); if (ret) return ret; /* In case these controls are set before streaming */ mutex_unlock(&gc1054->mutex); ret = v4l2_ctrl_handler_setup(&gc1054->ctrl_handler); mutex_lock(&gc1054->mutex); if (ret) return ret; return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE, GC1054_MODE_STREAMING); } static int __gc1054_stop_stream(struct gc1054 *gc1054) { return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE, GC1054_MODE_SW_STANDBY); } static int gc1054_s_stream(struct v4l2_subdev *sd, int on) { struct gc1054 *gc1054 = to_gc1054(sd); struct i2c_client *client = gc1054->client; int ret = 0; mutex_lock(&gc1054->mutex); on = !!on; if (on == gc1054->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 = __gc1054_start_stream(gc1054); if (ret) { v4l2_err(sd, "start stream failed while write regs\n"); pm_runtime_put(&client->dev); goto unlock_and_return; } } else { __gc1054_stop_stream(gc1054); pm_runtime_put(&client->dev); } gc1054->streaming = on; unlock_and_return: mutex_unlock(&gc1054->mutex); return 0; } static int gc1054_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct gc1054 *gc1054 = to_gc1054(sd); const struct gc1054_mode *mode = gc1054->cur_mode; mutex_lock(&gc1054->mutex); fi->interval = mode->max_fps; mutex_unlock(&gc1054->mutex); return 0; } static int gc1054_s_power(struct v4l2_subdev *sd, int on) { struct gc1054 *gc1054 = to_gc1054(sd); struct i2c_client *client = gc1054->client; int ret = 0; mutex_lock(&gc1054->mutex); /* If the power state is not modified - no work to do. */ if (gc1054->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; } gc1054->power_on = true; } else { pm_runtime_put(&client->dev); gc1054->power_on = false; } unlock_and_return: mutex_unlock(&gc1054->mutex); return ret; } /* Calculate the delay in us by clock rate and clock cycles */ static inline u32 gc1054_cal_delay(u32 cycles) { return DIV_ROUND_UP(cycles, GC1054_XVCLK_FREQ / 1000 / 1000); } static int __gc1054_power_on(struct gc1054 *gc1054) { int ret; u32 delay_us; struct device *dev = &gc1054->client->dev; ret = clk_set_rate(gc1054->xvclk, GC1054_XVCLK_FREQ); if (ret < 0) { dev_err(dev, "Failed to set xvclk rate (24MHz)\n"); return ret; } if (clk_get_rate(gc1054->xvclk) != GC1054_XVCLK_FREQ) dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); ret = clk_prepare_enable(gc1054->xvclk); if (ret < 0) { dev_err(dev, "Failed to enable xvclk\n"); return ret; } if (!IS_ERR(gc1054->reset_gpio)) gpiod_set_value_cansleep(gc1054->reset_gpio, 1); ret = regulator_bulk_enable(GC1054_NUM_SUPPLIES, gc1054->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators\n"); goto disable_clk; } /* According to datasheet, at least 10ms for reset duration */ usleep_range(10 * 1000, 15 * 1000); if (!IS_ERR(gc1054->pwdn_gpio)) gpiod_set_value_cansleep(gc1054->pwdn_gpio, 0); usleep_range(5 * 1000, 10 * 1000); if (!IS_ERR(gc1054->reset_gpio)) gpiod_set_value_cansleep(gc1054->reset_gpio, 0); /* 8192 cycles prior to first SCCB transaction */ delay_us = gc1054_cal_delay(8192); usleep_range(delay_us, delay_us * 2); return 0; disable_clk: clk_disable_unprepare(gc1054->xvclk); return ret; } static void __gc1054_power_off(struct gc1054 *gc1054) { if (!IS_ERR(gc1054->pwdn_gpio)) gpiod_set_value_cansleep(gc1054->pwdn_gpio, 1); clk_disable_unprepare(gc1054->xvclk); if (!IS_ERR(gc1054->reset_gpio)) gpiod_set_value_cansleep(gc1054->reset_gpio, 1); regulator_bulk_disable(GC1054_NUM_SUPPLIES, gc1054->supplies); } static int gc1054_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc1054 *gc1054 = to_gc1054(sd); return __gc1054_power_on(gc1054); } static int gc1054_runtime_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc1054 *gc1054 = to_gc1054(sd); __gc1054_power_off(gc1054); return 0; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int gc1054_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct gc1054 *gc1054 = to_gc1054(sd); struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->pad, 0); const struct gc1054_mode *def_mode = &supported_modes[0]; mutex_lock(&gc1054->mutex); /* Initialize try_fmt */ try_fmt->width = def_mode->width; try_fmt->height = def_mode->height; try_fmt->code = PIX_FORMAT; try_fmt->field = V4L2_FIELD_NONE; mutex_unlock(&gc1054->mutex); /* No crop or compose */ return 0; } #endif static int gc1054_g_mbus_config(struct v4l2_subdev *sd, struct v4l2_mbus_config *config) { config->type = V4L2_MBUS_PARALLEL; config->flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | V4L2_MBUS_PCLK_SAMPLE_RISING; return 0; } static int gc1054_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 != PIX_FORMAT) return -EINVAL; fie->code = GC1054_MEDIA_BUS_FMT; 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 const struct dev_pm_ops gc1054_pm_ops = { SET_RUNTIME_PM_OPS(gc1054_runtime_suspend, gc1054_runtime_resume, NULL) }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops gc1054_internal_ops = { .open = gc1054_open, }; #endif static const struct v4l2_subdev_core_ops gc1054_core_ops = { .s_power = gc1054_s_power, .ioctl = gc1054_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = gc1054_compat_ioctl32, #endif }; static const struct v4l2_subdev_video_ops gc1054_video_ops = { .s_stream = gc1054_s_stream, .g_frame_interval = gc1054_g_frame_interval, .g_mbus_config = gc1054_g_mbus_config, }; static const struct v4l2_subdev_pad_ops gc1054_pad_ops = { .enum_mbus_code = gc1054_enum_mbus_code, .enum_frame_size = gc1054_enum_frame_sizes, .enum_frame_interval = gc1054_enum_frame_interval, .get_fmt = gc1054_get_fmt, .set_fmt = gc1054_set_fmt, .get_selection = gc1054_get_selection, }; static const struct v4l2_subdev_ops gc1054_subdev_ops = { .core = &gc1054_core_ops, .video = &gc1054_video_ops, .pad = &gc1054_pad_ops, }; static uint32_t gain_level_table[12] = { 64, 91, 127, 182, 258, 369, 516, 738, 1032, 1491, 2084, 0xffffffff, }; static int gc1054_set_gain(struct gc1054 *gc1054, u32 gain) { int Analog_Index; u32 tol_dig_gain = 0; static int total; total = sizeof(gain_level_table) / sizeof(u32) - 1; for (Analog_Index = 0; Analog_Index < total; Analog_Index++) { if ((gain_level_table[Analog_Index] <= gain) && (gain < gain_level_table[Analog_Index+1])) break; } tol_dig_gain = gain*64/gain_level_table[Analog_Index]; gc1054_write_reg(gc1054->client, 0xfe, 0x01); gc1054_write_reg(gc1054->client, 0xb6, Analog_Index); gc1054_write_reg(gc1054->client, 0xb1, (tol_dig_gain>>6)); gc1054_write_reg(gc1054->client, 0xb2, ((tol_dig_gain&0x3f)<<2)); gc1054_write_reg(gc1054->client, 0xfe, 0x00); return 0; } static int gc1054_set_ctrl(struct v4l2_ctrl *ctrl) { struct gc1054 *gc1054 = container_of(ctrl->handler, struct gc1054, ctrl_handler); struct i2c_client *client = gc1054->client; s64 max; int ret = 0; u32 vts = 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 = gc1054->cur_mode->height + ctrl->val - 4; __v4l2_ctrl_modify_range(gc1054->exposure, gc1054->exposure->minimum, max, gc1054->exposure->step, gc1054->exposure->default_value); break; } if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: ret = gc1054_write_reg(gc1054->client, GC1054_REG_EXP_H, (ctrl->val >> 8) & 0x3f); ret |= gc1054_write_reg(gc1054->client, GC1054_REG_EXP_L, ctrl->val & 0xff); break; case V4L2_CID_ANALOGUE_GAIN: gc1054_set_gain(gc1054, ctrl->val); break; case V4L2_CID_VBLANK: vts = ctrl->val + gc1054->cur_mode->height; ret = gc1054_write_reg(gc1054->client, GC1054_REG_VTS_H, (vts >> 8) & 0x3f); ret |= gc1054_write_reg(gc1054->client, GC1054_REG_VTS_L, vts & 0xff); break; case V4L2_CID_HFLIP: break; case V4L2_CID_VFLIP: 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 gc1054_ctrl_ops = { .s_ctrl = gc1054_set_ctrl, }; static int gc1054_initialize_controls(struct gc1054 *gc1054) { const struct gc1054_mode *mode; struct v4l2_ctrl_handler *handler; s64 exposure_max, vblank_def; u32 h_blank; int ret; handler = &gc1054->ctrl_handler; mode = gc1054->cur_mode; ret = v4l2_ctrl_handler_init(handler, 8); if (ret) return ret; handler->lock = &gc1054->mutex; v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 0, GC1054_PIXEL_RATE, 1, GC1054_PIXEL_RATE); h_blank = mode->hts_def - mode->width; gc1054->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, h_blank, h_blank, 1, h_blank); if (gc1054->hblank) gc1054->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; vblank_def = mode->vts_def - mode->height; gc1054->vblank = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops, V4L2_CID_VBLANK, vblank_def, GC1054_VTS_MAX - mode->height, 1, vblank_def); exposure_max = mode->vts_def; //exposure_max = mode->vts_def - 4; gc1054->exposure = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops, V4L2_CID_EXPOSURE, GC1054_EXPOSURE_MIN, exposure_max, GC1054_EXPOSURE_STEP, mode->exp_def); gc1054->anal_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, GC1054_GAIN_MIN, GC1054_GAIN_MAX, GC1054_GAIN_STEP, GC1054_GAIN_DEFAULT); /* Digital gain */ gc1054->digi_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops, V4L2_CID_DIGITAL_GAIN, GC1054_GAIN_MIN, GC1054_GAIN_MAX, GC1054_GAIN_STEP, GC1054_GAIN_DEFAULT); if (handler->error) { ret = handler->error; dev_err(&gc1054->client->dev, "Failed to init controls(%d)\n", ret); goto err_free_handler; } gc1054->subdev.ctrl_handler = handler; // gc1054->digi_gain = GC1054_GAIN_DEFAULT; return 0; err_free_handler: v4l2_ctrl_handler_free(handler); return ret; } static int gc1054_check_sensor_id(struct gc1054 *gc1054, struct i2c_client *client) { struct device *dev = &gc1054->client->dev; u8 pid = 0, ver = 0; u16 id = 0; int ret = 0; /* Check sensor revision */ ret = gc1054_read_reg(client, GC1054_REG_CHIP_ID_H, &pid); ret |= gc1054_read_reg(client, GC1054_REG_CHIP_ID_L, &ver); if (ret) { dev_err(&client->dev, "gc1054_read_reg failed (%d)\n", ret); return ret; } id = SENSOR_ID(pid, ver); if (id != GC1054_CHIP_ID) { dev_err(&client->dev, "Sensor detection failed (%04X,%d)\n", id, ret); return -ENODEV; } dev_info(dev, "Detected GC%04x sensor\n", id); return 0; } static int gc1054_configure_regulators(struct gc1054 *gc1054) { u32 i; for (i = 0; i < GC1054_NUM_SUPPLIES; i++) gc1054->supplies[i].supply = gc1054_supply_names[i]; return devm_regulator_bulk_get(&gc1054->client->dev, GC1054_NUM_SUPPLIES, gc1054->supplies); } static int gc1054_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct gc1054 *gc1054; 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); gc1054 = devm_kzalloc(dev, sizeof(*gc1054), GFP_KERNEL); if (!gc1054) return -ENOMEM; gc1054->client = client; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &gc1054->module_index); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &gc1054->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &gc1054->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &gc1054->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } gc1054->client = client; gc1054->cur_mode = &supported_modes[0]; gc1054->xvclk = devm_clk_get(&client->dev, "xvclk"); if (IS_ERR(gc1054->xvclk)) { dev_err(&client->dev, "Failed to get xvclk\n"); return -EINVAL; } gc1054->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(gc1054->reset_gpio)) dev_warn(dev, "Failed to get reset-gpios\n"); gc1054->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); if (IS_ERR(gc1054->pwdn_gpio)) dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n"); ret = gc1054_configure_regulators(gc1054); if (ret) { dev_err(dev, "Failed to get power regulators\n"); return ret; } mutex_init(&gc1054->mutex); sd = &gc1054->subdev; v4l2_i2c_subdev_init(sd, client, &gc1054_subdev_ops); ret = gc1054_initialize_controls(gc1054); if (ret) goto err_destroy_mutex; ret = __gc1054_power_on(gc1054); if (ret) goto err_free_handler; ret = gc1054_check_sensor_id(gc1054, client); if (ret) goto err_power_off; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API sd->internal_ops = &gc1054_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; #endif #if defined(CONFIG_MEDIA_CONTROLLER) gc1054->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &gc1054->pad); if (ret < 0) goto err_power_off; #endif memset(facing, 0, sizeof(facing)); if (strcmp(gc1054->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", gc1054->module_index, facing, GC1054_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: __gc1054_power_off(gc1054); err_free_handler: v4l2_ctrl_handler_free(&gc1054->ctrl_handler); err_destroy_mutex: mutex_destroy(&gc1054->mutex); return ret; } static int gc1054_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc1054 *gc1054 = to_gc1054(sd); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif v4l2_ctrl_handler_free(&gc1054->ctrl_handler); mutex_destroy(&gc1054->mutex); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) __gc1054_power_off(gc1054); pm_runtime_set_suspended(&client->dev); return 0; } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id gc1054_of_match[] = { { .compatible = "galaxycore,gc1054" }, {}, }; MODULE_DEVICE_TABLE(of, gc1054_of_match); #endif static const struct i2c_device_id gc1054_match_id[] = { { "galaxycore,gc1054", 0 }, { }, }; static struct i2c_driver gc1054_i2c_driver = { .driver = { .name = GC1054_NAME, .pm = &gc1054_pm_ops, .of_match_table = of_match_ptr(gc1054_of_match), }, .probe = &gc1054_probe, .remove = &gc1054_remove, .id_table = gc1054_match_id, }; static int __init sensor_mod_init(void) { return i2c_add_driver(&gc1054_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&gc1054_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_DESCRIPTION("GC1054 CMOS Image Sensor driver"); MODULE_LICENSE("GPL v2");