diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 81a26cb71eb9..a412ac7c495b 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -1541,6 +1541,17 @@ config VIDEO_GC0403 To compile this driver as a module, choose M here: the module will be called gc0403. +config VIDEO_GC1054 + tristate "GalaxyCore GC1054 sensor support" + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CAMERA_SUPPORT + select V4L2_FWNODE + help + Support for the GalaxyCore GC1054 sensor. + + To compile this driver as a module, choose M here: the + module will be called gc1054. + config VIDEO_GC2035 tristate "GalaxyCore GC2035 sensor support" depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 9b7854135a2c..642bc7233b46 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -170,6 +170,7 @@ obj-$(CONFIG_VIDEO_GC0312) += gc0312.o obj-$(CONFIG_VIDEO_GC0329) += gc0329.o obj-$(CONFIG_VIDEO_GC032A) += gc032a.o obj-$(CONFIG_VIDEO_GC0403) += gc0403.o +obj-$(CONFIG_VIDEO_GC1054) += gc1054.o obj-$(CONFIG_VIDEO_GC2035) += gc2035.o obj-$(CONFIG_VIDEO_GC2053) += gc2053.o obj-$(CONFIG_VIDEO_GC2093) += gc2093.o diff --git a/drivers/media/i2c/gc1054.c b/drivers/media/i2c/gc1054.c new file mode 100644 index 000000000000..433b8851c65e --- /dev/null +++ b/drivers/media/i2c/gc1054.c @@ -0,0 +1,1350 @@ +// 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");