// SPDX-License-Identifier: GPL-2.0 /* * GC032A CMOS Image Sensor driver * * Copyright (C) 2020 Rockchip Electronics Co., Ltd. * V0.0X01.0X01 init driver. * V0.0X01.0X02 add quick stream on/off * V0.0X01.0X03 set sensor in stream off state by default * to avoid sending abnormal data in the early stage. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x2) #define DRIVER_NAME "gc032a" #define GC032A_PIXEL_RATE (96 * 1000 * 1000) //#define GC032A_AUTO_FPS /* * GC032A register definitions */ #define REG_SOFTWARE_STANDBY 0xf3 #define REG_SC_CHIP_ID_H 0xf0 #define REG_SC_CHIP_ID_L 0xf1 #define REG_NULL 0xFFFF /* Array end token */ #define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) #define GC032A_ID 0x232a struct sensor_register { u16 addr; u8 value; }; struct gc032a_framesize { u16 width; u16 height; u16 max_exp_lines; struct v4l2_fract max_fps; const struct sensor_register *regs; }; struct gc032a_pll_ctrl { u8 ctrl1; u8 ctrl2; u8 ctrl3; }; struct gc032a_pixfmt { u32 code; /* Output format Register Value (REG_FORMAT_CTRL00) */ struct sensor_register *format_ctrl_regs; }; struct pll_ctrl_reg { unsigned int div; unsigned char reg; }; static const char * const gc032a_supply_names[] = { "dovdd", /* Digital I/O power */ "avdd", /* Analog power */ "dvdd", /* Digital core power */ }; #define GC032A_NUM_SUPPLIES ARRAY_SIZE(gc032a_supply_names) struct gc032a { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_mbus_framefmt format; unsigned int xvclk_frequency; struct clk *xvclk; struct gpio_desc *pwdn_gpio; struct regulator_bulk_data supplies[GC032A_NUM_SUPPLIES]; struct mutex lock; struct i2c_client *client; struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *link_frequency; const struct gc032a_framesize *frame_size; int streaming; bool power_on; u32 module_index; const char *module_facing; const char *module_name; const char *len_name; }; static const struct sensor_register gc032a_vga_regs[] = { /*System*/ {0xf3, 0x00}, {0xf5, 0x06}, {0xf7, 0x01}, {0xf8, 0x03}, {0xf9, 0xce}, {0xfa, 0x00}, {0xfc, 0x02}, {0xfe, 0x02}, {0x81, 0x03}, {0xfe, 0x00}, {0x77, 0x64}, {0x78, 0x40}, {0x79, 0x60}, /*ANALOG & CISCTL*/ {0xfe, 0x00}, {0x03, 0x01}, {0x04, 0xce}, {0x05, 0x01}, {0x06, 0xad}, {0x07, 0x00}, {0x08, 0x10}, {0x0a, 0x00}, {0x0c, 0x00}, {0x0d, 0x01}, {0x0e, 0xe8}, {0x0f, 0x02}, {0x10, 0x88}, {0x17, 0x54}, {0x19, 0x08}, {0x1a, 0x0a}, {0x1f, 0x40}, {0x20, 0x30}, {0x2e, 0x80}, {0x2f, 0x2b}, {0x30, 0x1a}, {0xfe, 0x02}, {0x03, 0x02}, {0x05, 0xd7}, {0x06, 0x60}, {0x08, 0x80}, {0x12, 0x89}, /*blk*/ {0xfe, 0x00}, {0x18, 0x02}, {0xfe, 0x02}, {0x40, 0x22}, {0x45, 0x00}, {0x46, 0x00}, {0x49, 0x20}, {0x4b, 0x3c}, {0x50, 0x20}, {0x42, 0x10}, /*isp*/ {0xfe, 0x01}, {0x0a, 0xc5}, {0x45, 0x00}, {0xfe, 0x00}, {0x40, 0xff}, {0x41, 0x25}, {0x42, 0xcf}, {0x43, 0x10}, {0x44, 0x83},//Output_format //80 {0x46, 0x22},//sync {0x49, 0x03}, {0xfe, 0x02}, {0x22, 0xf6}, /*Shading*/ {0xfe, 0x00}, {0xfe, 0x01}, {0xc1, 0x38}, {0xc2, 0x4c}, {0xc3, 0x00}, {0xc4, 0x32}, {0xc5, 0x24}, {0xc6, 0x16}, {0xc7, 0x08}, {0xc8, 0x08}, {0xc9, 0x00}, {0xca, 0x20}, {0xdc, 0x8a}, {0xdd, 0xa0}, {0xde, 0xa6}, {0xdf, 0x75}, /*AWB*//*20170110*/ {0xfe, 0x01}, {0x90, 0x00}, {0x91, 0x00}, {0x92, 0xe3}, {0x93, 0xbe}, {0x95, 0x0b}, {0x96, 0xe3}, {0x97, 0x2e}, {0x98, 0x0b}, {0x9a, 0x2d}, {0x9b, 0x0b}, {0x9c, 0x59}, {0x9d, 0x2e}, {0x9f, 0x67}, {0xa0, 0x59}, {0xa1, 0x00}, {0xa2, 0x00}, {0x86, 0x00}, {0x87, 0x00}, {0x88, 0x00}, {0x89, 0x00}, {0xa4, 0x00}, {0xa5, 0x00}, {0xa6, 0xda}, {0xa7, 0x97}, {0xa9, 0xda}, {0xaa, 0x9a}, {0xab, 0xac}, {0xac, 0x86}, {0xae, 0xda}, {0xaf, 0xac}, {0xb0, 0xda}, {0xb1, 0xac}, {0xb3, 0xda}, {0xb4, 0xac}, {0xb5, 0x00}, {0xb6, 0x00}, {0x8b, 0x00}, {0x8c, 0x00}, {0x8d, 0x00}, {0x8e, 0x00}, {0x94, 0x50}, {0x99, 0xa6}, {0x9e, 0xaa}, {0xa3, 0x0a}, {0x8a, 0x00}, {0xa8, 0x50}, {0xad, 0x55}, {0xb2, 0x55}, {0xb7, 0x05}, {0x8f, 0x00}, {0xb8, 0xae}, {0xb9, 0xbb}, /*CC*/ {0xfe, 0x01}, {0xd0, 0x40}, {0xd1, 0xf8}, {0xd2, 0x00}, {0xd3, 0xfa}, {0xd4, 0x45}, {0xd5, 0x02}, {0xd6, 0x30}, {0xd7, 0xfa}, {0xd8, 0x08}, {0xd9, 0x08}, {0xda, 0x58}, {0xdb, 0x02}, {0xfe, 0x00}, /*Gamma*/ {0xfe, 0x00}, {0xba, 0x00}, {0xbb, 0x04}, {0xbc, 0x0a}, {0xbd, 0x0e}, {0xbe, 0x22}, {0xbf, 0x30}, {0xc0, 0x3d}, {0xc1, 0x4a}, {0xc2, 0x5d}, {0xc3, 0x6b}, {0xc4, 0x7a}, {0xc5, 0x85}, {0xc6, 0x90}, {0xc7, 0xa5}, {0xc8, 0xb5}, {0xc9, 0xc2}, {0xca, 0xcc}, {0xcb, 0xd5}, {0xcc, 0xde}, {0xcd, 0xea}, {0xce, 0xf5}, {0xcf, 0xff}, /*Auto Gamma*/ {0xfe, 0x00}, {0x5a, 0x08}, {0x5b, 0x0f}, {0x5c, 0x15}, {0x5d, 0x1c}, {0x5e, 0x28}, {0x5f, 0x36}, {0x60, 0x45}, {0x61, 0x51}, {0x62, 0x6a}, {0x63, 0x7d}, {0x64, 0x8d}, {0x65, 0x98}, {0x66, 0xa2}, {0x67, 0xb5}, {0x68, 0xc3}, {0x69, 0xcd}, {0x6a, 0xd4}, {0x6b, 0xdc}, {0x6c, 0xe3}, {0x6d, 0xf0}, {0x6e, 0xf9}, {0x6f, 0xff}, /*Gain*/ {0xfe, 0x00}, {0x70, 0x50}, /*AEC*/ {0xfe, 0x00}, {0x4f, 0x01}, {0xfe, 0x01}, {0x0d, 0x00},//08 add 20170110 {0x12, 0xa0}, {0x13, 0x3a}, {0x44, 0x04}, {0x1f, 0x30}, {0x20, 0x40}, {0x26, 0x9a}, {0x3e, 0x20}, {0x3f, 0x2d}, {0x40, 0x40}, {0x41, 0x5b}, {0x42, 0x82}, {0x43, 0xb7}, {0x04, 0x0a}, {0x02, 0x79}, {0x03, 0xc0}, /*measure window*/ {0xfe, 0x01}, {0xcc, 0x08}, {0xcd, 0x08}, {0xce, 0xa4}, {0xcf, 0xec}, /*DNDD*/ {0xfe, 0x00}, {0x81, 0xb8}, {0x82, 0x15},//de_noise {0x83, 0x1a},//de_noise dark {0x84, 0x01}, {0x86, 0x50}, {0x87, 0x18}, {0x88, 0x10}, {0x89, 0x70}, {0x8a, 0x20}, {0x8b, 0x10}, {0x8c, 0x08}, {0x8d, 0x0a}, /*Intpee*/ {0xfe, 0x00}, {0x8f, 0xaa}, {0x90, 0x9c}, {0x91, 0x52}, {0x92, 0x03}, {0x93, 0x03}, {0x94, 0x08}, {0x95, 0x65},//sharpness {0x97, 0x00}, {0x98, 0x00}, /*ASDE*/ {0xfe, 0x00}, {0xa1, 0x30}, {0xa2, 0x41}, {0xa4, 0x30}, {0xa5, 0x20}, {0xaa, 0x30}, {0xac, 0x32}, /*YCP*/ {0xfe, 0x00}, {0xd1, 0x37},//3a {0xd2, 0x37},//3a {0xd3, 0x40},//38 {0xd6, 0xf4}, {0xd7, 0x1d}, {0xdd, 0x73}, {0xde, 0x84}, #ifdef GC032A_AUTO_FPS /*Banding*/ /* 7fps */ {0xfe, 0x00}, {0x05, 0x01}, {0x06, 0xad}, {0x07, 0x00}, {0x08, 0x10}, {0xfe, 0x01}, {0x25, 0x00}, {0x26, 0x9a}, {0x27, 0x01}, {0x28, 0xce}, {0x29, 0x03}, {0x2a, 0x02}, {0x2b, 0x04}, {0x2c, 0x36}, {0x2d, 0x07}, {0x2e, 0xd2}, {0x2f, 0x0b}, {0x30, 0x6e}, {0x31, 0x0e}, {0x32, 0x70}, {0x33, 0x12}, {0x34, 0x0c}, {0x3c, 0x20}, #else /*Banding*/ /* 30 fps */ {0xfe, 0x00}, {0x05, 0x01}, {0x06, 0xad}, {0x07, 0x00}, {0x08, 0x10}, {0xfe, 0x01}, {0x25, 0x00}, {0x26, 0x9a}, {0x27, 0x01}, {0x28, 0xce}, {0x29, 0x01}, {0x2a, 0xce}, {0x2b, 0x01}, {0x2c, 0xce}, {0x2d, 0x01}, {0x2e, 0xce}, {0x2f, 0x01}, {0x30, 0xce}, {0x31, 0x01}, {0x32, 0xce}, {0x33, 0x01}, {0x34, 0xce}, {0x3c, 0x00}, #endif {0xfe, 0x00}, {REG_NULL, 0x00}, }; static const struct gc032a_framesize gc032a_framesizes[] = { { /* VGA */ .width = 640, .height = 480, .max_fps = { .numerator = 10000, .denominator = 300000, }, .regs = gc032a_vga_regs, .max_exp_lines = 488, } }; static const struct gc032a_pixfmt gc032a_formats[] = { { .code = MEDIA_BUS_FMT_YUYV8_2X8, } }; static inline struct gc032a *to_gc032a(struct v4l2_subdev *sd) { return container_of(sd, struct gc032a, sd); } /* sensor register write */ static int gc032a_write(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, "gc032a write reg(0x%x val:0x%x) failed !\n", reg, val); return ret; } /* sensor register read */ static int gc032a_read(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, "gc032a read reg:0x%x failed !\n", reg); return ret; } static int gc032a_write_array(struct i2c_client *client, const struct sensor_register *regs) { int i, ret = 0; i = 0; while (regs[i].addr != REG_NULL) { ret = gc032a_write(client, regs[i].addr, regs[i].value); if (ret) { dev_err(&client->dev, "%s failed !\n", __func__); break; } i++; } return ret; } static void gc032a_get_default_format(struct v4l2_mbus_framefmt *format) { format->width = gc032a_framesizes[0].width; format->height = gc032a_framesizes[0].height; format->colorspace = V4L2_COLORSPACE_SRGB; format->code = gc032a_formats[0].code; format->field = V4L2_FIELD_NONE; } static void gc032a_set_streaming(struct gc032a *gc032a, int on) { struct i2c_client *client = gc032a->client; int ret; dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); ret = gc032a_write(client, REG_SOFTWARE_STANDBY, on); if (ret) dev_err(&client->dev, "gc032a soft standby failed\n"); } /* * V4L2 subdev video and pad level operations */ static int gc032a_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { struct i2c_client *client = v4l2_get_subdevdata(sd); dev_dbg(&client->dev, "%s:\n", __func__); if (code->index >= ARRAY_SIZE(gc032a_formats)) return -EINVAL; code->code = gc032a_formats[code->index].code; return 0; } static int gc032a_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { struct i2c_client *client = v4l2_get_subdevdata(sd); int i = ARRAY_SIZE(gc032a_formats); dev_dbg(&client->dev, "%s:\n", __func__); if (fse->index >= ARRAY_SIZE(gc032a_framesizes)) return -EINVAL; while (--i) if (fse->code == gc032a_formats[i].code) break; fse->code = gc032a_formats[i].code; fse->min_width = gc032a_framesizes[fse->index].width; fse->max_width = fse->min_width; fse->max_height = gc032a_framesizes[fse->index].height; fse->min_height = fse->max_height; return 0; } static int gc032a_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct gc032a *gc032a = to_gc032a(sd); dev_dbg(&client->dev, "%s enter\n", __func__); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API struct v4l2_mbus_framefmt *mf; mf = v4l2_subdev_get_try_format(sd, sd_state, 0); mutex_lock(&gc032a->lock); fmt->format = *mf; mutex_unlock(&gc032a->lock); return 0; #else return -ENOTTY; #endif } mutex_lock(&gc032a->lock); fmt->format = gc032a->format; mutex_unlock(&gc032a->lock); dev_dbg(&client->dev, "%s: %x %dx%d\n", __func__, gc032a->format.code, gc032a->format.width, gc032a->format.height); return 0; } static void __gc032a_try_frame_size(struct v4l2_mbus_framefmt *mf, const struct gc032a_framesize **size) { const struct gc032a_framesize *fsize = &gc032a_framesizes[0]; const struct gc032a_framesize *match = NULL; int i = ARRAY_SIZE(gc032a_framesizes); unsigned int min_err = UINT_MAX; while (i--) { unsigned int err = abs(fsize->width - mf->width) + abs(fsize->height - mf->height); if (err < min_err && fsize->regs[0].addr) { min_err = err; match = fsize; } fsize++; } if (!match) match = &gc032a_framesizes[0]; mf->width = match->width; mf->height = match->height; if (size) *size = match; } static int gc032a_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct i2c_client *client = v4l2_get_subdevdata(sd); int index = ARRAY_SIZE(gc032a_formats); struct v4l2_mbus_framefmt *mf = &fmt->format; const struct gc032a_framesize *size = NULL; struct gc032a *gc032a = to_gc032a(sd); int ret = 0; dev_dbg(&client->dev, "%s enter\n", __func__); __gc032a_try_frame_size(mf, &size); while (--index >= 0) if (gc032a_formats[index].code == mf->code) break; if (index < 0) return -EINVAL; mf->colorspace = V4L2_COLORSPACE_SRGB; mf->code = gc032a_formats[index].code; mf->field = V4L2_FIELD_NONE; mutex_lock(&gc032a->lock); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API mf = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); *mf = fmt->format; #else return -ENOTTY; #endif } else { if (gc032a->streaming) { mutex_unlock(&gc032a->lock); return -EBUSY; } gc032a->frame_size = size; gc032a->format = fmt->format; } mutex_unlock(&gc032a->lock); return ret; } static void gc032a_get_module_inf(struct gc032a *gc032a, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strlcpy(inf->base.sensor, DRIVER_NAME, sizeof(inf->base.sensor)); strlcpy(inf->base.module, gc032a->module_name, sizeof(inf->base.module)); strlcpy(inf->base.lens, gc032a->len_name, sizeof(inf->base.lens)); } static long gc032a_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct gc032a *gc032a = to_gc032a(sd); long ret = 0; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: gc032a_get_module_inf(gc032a, (struct rkmodule_inf *)arg); break; case RKMODULE_SET_QUICK_STREAM: stream = *((u32 *)arg); if (stream) gc032a_set_streaming(gc032a, 0xff); else gc032a_set_streaming(gc032a, 0x00); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long gc032a_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 = gc032a_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 = gc032a_ioctl(sd, cmd, cfg); kfree(cfg); break; case RKMODULE_SET_QUICK_STREAM: ret = copy_from_user(&stream, up, sizeof(u32)); if (!ret) ret = gc032a_ioctl(sd, cmd, &stream); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int gc032a_s_stream(struct v4l2_subdev *sd, int on) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct gc032a *gc032a = to_gc032a(sd); dev_info(&client->dev, "%s: on: %d\n", __func__, on); mutex_lock(&gc032a->lock); on = !!on; if (gc032a->streaming == on) goto unlock; if (!on) { /* Stop Streaming Sequence */ gc032a_set_streaming(gc032a, 0x00); gc032a->streaming = on; goto unlock; } gc032a_set_streaming(gc032a, 0xFF); gc032a->streaming = on; unlock: mutex_unlock(&gc032a->lock); return 0; } static int gc032a_set_test_pattern(struct gc032a *gc032a, int value) { return 0; } static int gc032a_s_ctrl(struct v4l2_ctrl *ctrl) { struct gc032a *gc032a = container_of(ctrl->handler, struct gc032a, ctrls); switch (ctrl->id) { case V4L2_CID_TEST_PATTERN: return gc032a_set_test_pattern(gc032a, ctrl->val); } return 0; } static const struct v4l2_ctrl_ops gc032a_ctrl_ops = { .s_ctrl = gc032a_s_ctrl, }; static const char * const gc032a_test_pattern_menu[] = { "Disabled", "Vertical Color Bars", }; /* ----------------------------------------------------------------------------- * V4L2 subdev internal operations */ #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int gc032a_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(sd, fh->state, 0); dev_dbg(&client->dev, "%s:\n", __func__); gc032a_get_default_format(format); return 0; } #endif static int gc032a_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_config *config) { config->type = V4L2_MBUS_PARALLEL; config->bus.parallel.flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | V4L2_MBUS_PCLK_SAMPLE_RISING; return 0; } static int gc032a_power(struct v4l2_subdev *sd, int on) { int ret; struct gc032a *gc032a = to_gc032a(sd); struct i2c_client *client = gc032a->client; dev_info(&client->dev, "%s(%d) on(%d)\n", __func__, __LINE__, on); if (on) { if (!IS_ERR(gc032a->pwdn_gpio)) { gpiod_set_value_cansleep(gc032a->pwdn_gpio, 0); usleep_range(2000, 5000); } ret = gc032a_write_array(client, gc032a->frame_size->regs); if (ret) dev_err(&client->dev, "init error\n"); gc032a->power_on = true; } else { if (!IS_ERR(gc032a->pwdn_gpio)) { gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1); usleep_range(2000, 5000); } gc032a->power_on = false; } return 0; } static int gc032a_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *fie) { if (fie->index >= ARRAY_SIZE(gc032a_framesizes)) return -EINVAL; fie->code = MEDIA_BUS_FMT_YUYV8_2X8; fie->width = gc032a_framesizes[fie->index].width; fie->height = gc032a_framesizes[fie->index].height; fie->interval = gc032a_framesizes[fie->index].max_fps; return 0; } static const struct v4l2_subdev_core_ops gc032a_subdev_core_ops = { .log_status = v4l2_ctrl_subdev_log_status, .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, .ioctl = gc032a_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = gc032a_compat_ioctl32, #endif .s_power = gc032a_power, }; static const struct v4l2_subdev_video_ops gc032a_subdev_video_ops = { .s_stream = gc032a_s_stream, }; static const struct v4l2_subdev_pad_ops gc032a_subdev_pad_ops = { .enum_mbus_code = gc032a_enum_mbus_code, .enum_frame_size = gc032a_enum_frame_sizes, .enum_frame_interval = gc032a_enum_frame_interval, .get_fmt = gc032a_get_fmt, .set_fmt = gc032a_set_fmt, .get_mbus_config = gc032a_g_mbus_config, }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_ops gc032a_subdev_ops = { .core = &gc032a_subdev_core_ops, .video = &gc032a_subdev_video_ops, .pad = &gc032a_subdev_pad_ops, }; static const struct v4l2_subdev_internal_ops gc032a_subdev_internal_ops = { .open = gc032a_open, }; #endif static int gc032a_detect(struct gc032a *gc032a) { struct i2c_client *client = gc032a->client; u8 pid, ver; int ret; dev_dbg(&client->dev, "%s:\n", __func__); /* Check sensor revision */ ret = gc032a_read(client, REG_SC_CHIP_ID_H, &pid); if (!ret) ret = gc032a_read(client, REG_SC_CHIP_ID_L, &ver); if (!ret) { unsigned short id; id = SENSOR_ID(pid, ver); if (id != GC032A_ID) { ret = -1; dev_err(&client->dev, "Sensor detection failed (%04X, %d)\n", id, ret); } else { dev_info(&client->dev, "Found GC%04X sensor\n", id); if (!IS_ERR(gc032a->pwdn_gpio)) gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1); } } return ret; } static int __gc032a_power_on(struct gc032a *gc032a) { int ret; struct device *dev = &gc032a->client->dev; if (!IS_ERR(gc032a->xvclk)) { ret = clk_set_rate(gc032a->xvclk, 24000000); if (ret < 0) dev_info(dev, "Failed to set xvclk rate (24MHz)\n"); } if (!IS_ERR(gc032a->pwdn_gpio)) { gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1); usleep_range(2000, 5000); } if (!IS_ERR(gc032a->supplies)) { ret = regulator_bulk_enable(GC032A_NUM_SUPPLIES, gc032a->supplies); if (ret < 0) dev_info(dev, "Failed to enable regulators\n"); usleep_range(2000, 5000); } if (!IS_ERR(gc032a->pwdn_gpio)) { gpiod_set_value_cansleep(gc032a->pwdn_gpio, 0); usleep_range(2000, 5000); } if (!IS_ERR(gc032a->xvclk)) { ret = clk_prepare_enable(gc032a->xvclk); if (ret < 0) dev_info(dev, "Failed to enable xvclk\n"); } usleep_range(7000, 10000); gc032a->power_on = true; return 0; } static void __gc032a_power_off(struct gc032a *gc032a) { if (!IS_ERR(gc032a->xvclk)) clk_disable_unprepare(gc032a->xvclk); if (!IS_ERR(gc032a->supplies)) regulator_bulk_disable(GC032A_NUM_SUPPLIES, gc032a->supplies); if (!IS_ERR(gc032a->pwdn_gpio)) gpiod_set_value_cansleep(gc032a->pwdn_gpio, 1); gc032a->power_on = false; } static int gc032a_configure_regulators(struct gc032a *gc032a) { unsigned int i; for (i = 0; i < GC032A_NUM_SUPPLIES; i++) gc032a->supplies[i].supply = gc032a_supply_names[i]; return devm_regulator_bulk_get(&gc032a->client->dev, GC032A_NUM_SUPPLIES, gc032a->supplies); } static int gc032a_parse_of(struct gc032a *gc032a) { struct device *dev = &gc032a->client->dev; int ret; gc032a->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); if (IS_ERR(gc032a->pwdn_gpio)) dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n"); ret = gc032a_configure_regulators(gc032a); if (ret) dev_info(dev, "Failed to get power regulators\n"); return __gc032a_power_on(gc032a); } static int gc032a_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct v4l2_subdev *sd; struct gc032a *gc032a; char facing[2]; int ret; dev_info(dev, "driver version: %02x.%02x.%02x", DRIVER_VERSION >> 16, (DRIVER_VERSION & 0xff00) >> 8, DRIVER_VERSION & 0x00ff); gc032a = devm_kzalloc(&client->dev, sizeof(*gc032a), GFP_KERNEL); if (!gc032a) return -ENOMEM; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &gc032a->module_index); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &gc032a->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &gc032a->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &gc032a->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } gc032a->client = client; gc032a->xvclk = devm_clk_get(&client->dev, "xvclk"); if (IS_ERR(gc032a->xvclk)) { dev_err(&client->dev, "Failed to get xvclk\n"); return -EINVAL; } gc032a_parse_of(gc032a); gc032a->xvclk_frequency = clk_get_rate(gc032a->xvclk); if (gc032a->xvclk_frequency < 6000000 || gc032a->xvclk_frequency > 27000000) return -EINVAL; v4l2_ctrl_handler_init(&gc032a->ctrls, 2); gc032a->link_frequency = v4l2_ctrl_new_std(&gc032a->ctrls, &gc032a_ctrl_ops, V4L2_CID_PIXEL_RATE, 0, GC032A_PIXEL_RATE, 1, GC032A_PIXEL_RATE); v4l2_ctrl_new_std_menu_items(&gc032a->ctrls, &gc032a_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(gc032a_test_pattern_menu) - 1, 0, 0, gc032a_test_pattern_menu); gc032a->sd.ctrl_handler = &gc032a->ctrls; if (gc032a->ctrls.error) { dev_err(&client->dev, "%s: control initialization error %d\n", __func__, gc032a->ctrls.error); return gc032a->ctrls.error; } sd = &gc032a->sd; client->flags |= I2C_CLIENT_SCCB; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API v4l2_i2c_subdev_init(sd, client, &gc032a_subdev_ops); sd->internal_ops = &gc032a_subdev_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; #endif #if defined(CONFIG_MEDIA_CONTROLLER) gc032a->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &gc032a->pad); if (ret < 0) { v4l2_ctrl_handler_free(&gc032a->ctrls); return ret; } #endif mutex_init(&gc032a->lock); gc032a_get_default_format(&gc032a->format); gc032a->frame_size = &gc032a_framesizes[0]; ret = gc032a_detect(gc032a); if (ret < 0) goto error; memset(facing, 0, sizeof(facing)); if (strcmp(gc032a->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", gc032a->module_index, facing, DRIVER_NAME, dev_name(sd->dev)); ret = v4l2_async_register_subdev_sensor(sd); if (ret) goto error; dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); gc032a->power_on = false; return 0; error: v4l2_ctrl_handler_free(&gc032a->ctrls); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif mutex_destroy(&gc032a->lock); __gc032a_power_off(gc032a); return ret; } static void gc032a_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc032a *gc032a = to_gc032a(sd); v4l2_ctrl_handler_free(&gc032a->ctrls); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif mutex_destroy(&gc032a->lock); __gc032a_power_off(gc032a); } static const struct i2c_device_id gc032a_id[] = { { "gc032a", 0 }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(i2c, gc032a_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id gc032a_of_match[] = { { .compatible = "galaxycore,gc032a", }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, gc032a_of_match); #endif static struct i2c_driver gc032a_i2c_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = of_match_ptr(gc032a_of_match), }, .probe = gc032a_probe, .remove = gc032a_remove, .id_table = gc032a_id, }; static int __init sensor_mod_init(void) { return i2c_add_driver(&gc032a_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&gc032a_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_AUTHOR("randy.wang "); MODULE_DESCRIPTION("GC032A CMOS Image Sensor driver"); MODULE_LICENSE("GPL v2");