From 642bed250f89e85ff26cfc04a62b2e1db059ee10 Mon Sep 17 00:00:00 2001 From: Wang Panzhenzhuan Date: Mon, 10 Dec 2018 15:55:16 +0800 Subject: [PATCH] media: i2c: add gc2355 driver for rkisp1 Change-Id: I500c7133fa98b5b98d074408d4f08c39f57f5c38 Signed-off-by: Wang Panzhenzhuan --- drivers/media/i2c/Kconfig | 10 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/gc2355.c | 1126 ++++++++++++++++++++++++++++++++++++ 3 files changed, 1137 insertions(+) create mode 100644 drivers/media/i2c/gc2355.c diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 99b93b1d74b2..926ba8c7cb43 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -792,6 +792,16 @@ config VIDEO_GC2145 To compile this driver as a module, choose M here: the module will be called gc2145. +config VIDEO_GC2355 + tristate "GalaxyCore GC2355 sensor support" + depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API + default y + help + Support for the GalaxyCore GC2355 sensor. + + To compile this driver as a module, choose M here: the + module will be called gc2355. + config VIDEO_GC0329 tristate "GalaxyCore GC0329 sensor support" depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 69d20dea3fe1..a6c6ba50de20 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -97,5 +97,6 @@ obj-$(CONFIG_VIDEO_GC0312) += gc0312.o obj-$(CONFIG_VIDEO_GC2145) += gc2145.o obj-$(CONFIG_VIDEO_GC0329) += gc0329.o obj-$(CONFIG_VIDEO_GC2035) += gc2035.o +obj-$(CONFIG_VIDEO_GC2145) += gc2355.o obj-$(CONFIG_VIDEO_VM149C) += vm149c.o diff --git a/drivers/media/i2c/gc2355.c b/drivers/media/i2c/gc2355.c new file mode 100644 index 000000000000..1594d1b66d9a --- /dev/null +++ b/drivers/media/i2c/gc2355.c @@ -0,0 +1,1126 @@ +/*SPDX-License-Identifier: GPL-2.0 */ +/* + * gc2355 driver + * + * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. + */ +#define DEBUG 1 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef V4L2_CID_DIGITAL_GAIN +#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN +#endif + +#define GC2355_LINK_FREQ_420MHZ 420000000 +/* pixel rate = link frequency * 1 * lanes / BITS_PER_SAMPLE */ +#define GC2355_PIXEL_RATE (GC2355_LINK_FREQ_420MHZ * 2 * 1 / 10) +#define GC2355_XVCLK_FREQ 24000000 + +#define CHIP_ID 0x2355 +#define GC2355_REG_CHIP_ID_H 0xf0 +#define GC2355_REG_CHIP_ID_L 0xf1 +#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) + +#define GC2355_PAGE_SELECT 0xfe +#define GC2355_MODE_SELECT 0x10 +#define GC2355_MODE_SW_STANDBY 0x00 +#define GC2355_MODE_STREAMING 0x90 + +#define GC2355_REG_EXPOSURE_H 0x03 +#define GC2355_REG_EXPOSURE_L 0x04 +#define GC2355_EXPOSURE_MIN 4 +#define GC2355_EXPOSURE_STEP 1 +#define GC2355_VTS_MAX 0x7fff + +#define GC2355_ANALOG_GAIN_1 64 /*1.00x*/ +#define GC2355_ANALOG_GAIN_2 88 /*1.375x*/ +#define GC2355_ANALOG_GAIN_3 122 /*1.90x*/ +#define GC2355_ANALOG_GAIN_4 168 /*2.625x*/ +#define GC2355_ANALOG_GAIN_5 239 /*3.738x*/ +#define GC2355_ANALOG_GAIN_6 330 /*5.163x*/ +#define GC2355_ANALOG_GAIN_7 470 /*7.350x*/ + +#define GC2355_ANALOG_GAIN_REG 0xb6 +#define GC2355_PREGAIN_H_REG 0xb1 +#define GC2355_PREGAIN_L_REG 0xb2 + +#define GC2355_GAIN_MIN 0x40 +#define GC2355_GAIN_MAX 0x200 +#define GC2355_GAIN_STEP 1 +#define GC2355_GAIN_DEFAULT 0x80 + +#define GC2355_REG_VTS_H 0x03 +#define GC2355_REG_VTS_L 0x04 + +#define REG_NULL 0xFFFF + +#define GC2355_LANES 1 +#define GC2355_BITS_PER_SAMPLE 10 + +#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" +#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" + +static const char * const gc2355_supply_names[] = { + "avdd", /* Analog power */ + "dovdd", /* Digital I/O power */ + "dvdd", /* Digital core power */ +}; + +#define GC2355_NUM_SUPPLIES ARRAY_SIZE(gc2355_supply_names) + +struct regval { + u16 addr; + u8 val; +}; + +struct gc2355_mode { + u32 width; + u32 height; + u32 max_fps; + u32 hts_def; + u32 vts_def; + u32 exp_def; + const struct regval *reg_list; +}; + +struct gc2355 { + struct i2c_client *client; + struct clk *xvclk; + struct gpio_desc *reset_gpio; + struct gpio_desc *pwdn_gpio; + struct regulator_bulk_data supplies[GC2355_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 *test_pattern; + struct mutex mutex; + bool streaming; + const struct gc2355_mode *cur_mode; +}; + +#define to_gc2355(sd) container_of(sd, struct gc2355, subdev) + +/* + * Xclk 24Mhz + */ +static const struct regval gc2355_global_regs[] = { + ///////////////////////////////////////////////////// +////////////////////// SYS ////////////////////// +///////////////////////////////////////////////////// + {0xfe, 0x80}, + {0xfe, 0x80}, + {0xfe, 0x80}, + {0xf2, 0x00}, //sync_pad_io_ebi + {0xf6, 0x00}, //up down + {0xfc, 0x06}, + {0xf7, 0x19}, //19 //clk_double pll enable + {0xf8, 0x06}, //Pll mode 2 + {0xf9, 0x0e}, //de//[0] pll enable + {0xfa, 0x00}, //div + {0xfe, 0x00}, + +///////////////////////////////////////////////////// +//////////////// ANALOG & CISCTL //////////////// +///////////////////////////////////////////////////// + {0x03, 0x04}, + {0x04, 0x5f}, + {0x05, 0x01}, //HB + {0x06, 0x22}, + {0x07, 0x00}, //VB + {0x08, 0x0b}, + {0x0a, 0x00}, //row start + {0x0c, 0x04}, //0c//col start + {0x0d, 0x04}, + {0x0e, 0xc0}, + {0x0f, 0x06}, + {0x10, 0x50}, //Window setting 1616x1216 + {0x17, 0x14}, + {0x19, 0x0b}, //09 + {0x1b, 0x49}, //48 + {0x1c, 0x12}, + {0x1d, 0x10}, //double reset + {0x1e, 0xbc}, //a8//col_r/rowclk_mode/rsthigh_en FPN + {0x1f, 0xc8}, //08//rsgl_s_mode/vpix_s_mode + {0x20, 0x71}, + {0x21, 0x20}, //rsg + {0x22, 0xa0}, + {0x23, 0x51}, //01 + {0x24, 0x19}, //0b //55 + {0x27, 0x20}, + {0x28, 0x00}, + {0x2b, 0x81}, //80 //00 sf_s_mode FPN + {0x2c, 0x38}, //50 //5c ispg FPN + {0x2e, 0x16}, //05//eq width + {0x2f, 0x14}, //[3:0]tx_width + {0x30, 0x00}, + {0x31, 0x01}, + {0x32, 0x02}, + {0x33, 0x03}, + {0x34, 0x07}, + {0x35, 0x0b}, + {0x36, 0x0f}, + +///////////////////////////////////////////////////// +////////////////////// gain ///////////////////// +///////////////////////////////////////////////////// + {0xb0, 0x50}, //1.25x + {0xb1, 0x02}, + {0xb2, 0xe0}, //2.86x + {0xb3, 0x40}, + {0xb4, 0x40}, + {0xb5, 0x40}, + {0xb6, 0x03}, //2.8x + +///////////////////////////////////////////////////// +////////////////////// crop ///////////////////// +///////////////////////////////////////////////////// + {0x92, 0x02}, + {0x95, 0x04}, + {0x96, 0xb0}, + {0x97, 0x06}, + {0x98, 0x40}, //out window set 1600x1200 + +///////////////////////////////////////////////////// +////////////////////// BLK ///////////////////// +///////////////////////////////////////////////////// + {0x18, 0x02}, + {0x1a, 0x01}, + {0x40, 0x42}, + {0x41, 0x00}, + + {0x44, 0x00}, + {0x45, 0x00}, + {0x46, 0x00}, + {0x47, 0x00}, + {0x48, 0x00}, + {0x49, 0x00}, + {0x4a, 0x00}, + {0x4b, 0x00}, //clear offset + + {0x4e, 0x3c}, //BLK select + {0x4f, 0x00}, + {0x5e, 0x00}, //offset ratio + {0x66, 0x20}, //dark ratio + + {0x6a, 0x02}, + {0x6b, 0x02}, + {0x6c, 0x00}, + {0x6d, 0x00}, + {0x6e, 0x00}, + {0x6f, 0x00}, + {0x70, 0x02}, + {0x71, 0x02}, //manual offset + +///////////////////////////////////////////////////// +////////////////// Dark sun ///////////////////// +///////////////////////////////////////////////////// + {0x87, 0x03}, // + {0xe0, 0xe7}, //dark sun en/extend mode + {0xe3, 0xc0}, //clamp + +///////////////////////////////////////////////////// +////////////////////// MIPI ///////////////////// +///////////////////////////////////////////////////// + {0xfe, 0x03}, + {0x01, 0x83}, //0x87 2lane + {0x02, 0x00}, + {0x03, 0x90}, + {0x04, 0x01}, + {0x05, 0x00}, + {0x06, 0xa2}, + {0x10, 0x00}, //94//1lane raw8 + {0x11, 0x2b}, + {0x12, 0xd0}, + {0x13, 0x07}, + +/* p3:0x15 [1:0]clklane_mode + * 00 : Enter LP mode between Frame; + * 01: Enter LP mode between Row; + * 10: Continuous HS mode + */ + {0x15, 0x60}, + {0x21, 0x10}, + {0x22, 0x05}, + {0x23, 0x30}, + {0x24, 0x02}, + {0x25, 0x15}, + {0x26, 0x08}, + {0x27, 0x06}, + {0x29, 0x06}, + {0x2a, 0x0a}, + {0x2b, 0x08}, + {0x40, 0x00}, + {0x41, 0x00}, + {0x42, 0x40}, + {0x43, 0x06}, + {0xfe, 0x00}, + {REG_NULL, 0x00}, +}; + +/* + * Xclk 24Mhz + * max_framerate 30fps + * mipi_datarate per lane 1008Mbps + */ +static const struct regval gc2355_1600x1200_regs[] = { + {REG_NULL, 0x00}, +}; + +static const struct gc2355_mode supported_modes[] = { + { + .width = 1600, + .height = 1200, + .max_fps = 30, + .exp_def = 0x04d0, + .hts_def = 0x08cc, + .vts_def = 0x04d9, + .reg_list = gc2355_1600x1200_regs, + }, +}; + +static const s64 link_freq_menu_items[] = { + GC2355_LINK_FREQ_420MHZ +}; + +/* sensor register write */ +static int gc2355_write_reg(struct i2c_client *client, u8 reg, u8 val) +{ + struct i2c_msg msg; + u8 buf[2]; + int ret; + + dev_info(&client->dev, "%s(%d) enter!\n", __func__, __LINE__); + dev_info(&client->dev, "gc2355 write reg(0x%x val:0x%x)!\n", reg, val); + 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, + "gc2355 write reg(0x%x val:0x%x) failed !\n", reg, val); + + return ret; +} + +/* sensor register read */ +static int gc2355_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, + "gc2355 read reg:0x%x failed !\n", reg); + + return ret; +} + +static int gc2355_write_array(struct i2c_client *client, + const struct regval *regs) +{ + u32 i; + int ret = 0; + + for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) + ret = gc2355_write_reg(client, regs[i].addr, regs[i].val); + + return ret; +} + +static int gc2355_get_reso_dist(const struct gc2355_mode *mode, + struct v4l2_mbus_framefmt *framefmt) +{ + return abs(mode->width - framefmt->width) + + abs(mode->height - framefmt->height); +} + +static const struct gc2355_mode * +gc2355_find_best_fit(struct v4l2_subdev_format *fmt) +{ + struct v4l2_mbus_framefmt *framefmt = &fmt->format; + int dist; + int cur_best_fit = 0; + int cur_best_fit_dist = -1; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { + dist = gc2355_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 gc2355_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct gc2355 *gc2355 = to_gc2355(sd); + const struct gc2355_mode *mode; + s64 h_blank, vblank_def; + + mutex_lock(&gc2355->mutex); + + mode = gc2355_find_best_fit(fmt); + fmt->format.code = MEDIA_BUS_FMT_SRGGB10_1X10; + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.field = V4L2_FIELD_NONE; + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format; +#else + mutex_unlock(&gc2355->mutex); + return -ENOTTY; +#endif + } else { + gc2355->cur_mode = mode; + h_blank = mode->hts_def - mode->width; + __v4l2_ctrl_modify_range(gc2355->hblank, h_blank, + h_blank, 1, h_blank); + vblank_def = mode->vts_def - mode->height; + __v4l2_ctrl_modify_range(gc2355->vblank, vblank_def, + GC2355_VTS_MAX - mode->height, + 1, vblank_def); + } + + mutex_unlock(&gc2355->mutex); + + return 0; +} + +static int gc2355_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct gc2355 *gc2355 = to_gc2355(sd); + const struct gc2355_mode *mode = gc2355->cur_mode; + + mutex_lock(&gc2355->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(&gc2355->mutex); + return -ENOTTY; +#endif + } else { + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = MEDIA_BUS_FMT_SRGGB10_1X10; + fmt->format.field = V4L2_FIELD_NONE; + } + mutex_unlock(&gc2355->mutex); + + return 0; +} + +static int gc2355_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index != 0) + return -EINVAL; + code->code = MEDIA_BUS_FMT_SRGGB10_1X10; + + return 0; +} + +static int gc2355_enum_frame_sizes(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_SRGGB10_1X10) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = supported_modes[fse->index].width; + fse->max_height = supported_modes[fse->index].height; + fse->min_height = supported_modes[fse->index].height; + + return 0; +} + +static int gc2355_g_frame_interval(struct v4l2_subdev *sd, + struct v4l2_subdev_frame_interval *fi) +{ + struct gc2355 *gc2355 = to_gc2355(sd); + const struct gc2355_mode *mode = gc2355->cur_mode; + + mutex_lock(&gc2355->mutex); + fi->interval.numerator = 10000; + fi->interval.denominator = mode->max_fps * 10000; + mutex_unlock(&gc2355->mutex); + + return 0; +} + +static int __gc2355_start_stream(struct gc2355 *gc2355) +{ + int ret; + + ret = gc2355_write_array(gc2355->client, gc2355_global_regs); + if (ret) + return ret; + + ret = gc2355_write_array(gc2355->client, gc2355->cur_mode->reg_list); + if (ret) + return ret; + + /* In case these controls are set before streaming */ + mutex_unlock(&gc2355->mutex); + ret = v4l2_ctrl_handler_setup(&gc2355->ctrl_handler); + mutex_lock(&gc2355->mutex); + if (ret) + return ret; + + ret = gc2355_write_reg(gc2355->client, GC2355_PAGE_SELECT, 0x03); + ret = gc2355_write_reg(gc2355->client, GC2355_MODE_SELECT, + GC2355_MODE_STREAMING); + ret = gc2355_write_reg(gc2355->client, GC2355_PAGE_SELECT, 0x00); + return ret; +} + +static int __gc2355_stop_stream(struct gc2355 *gc2355) +{ + int ret; + + ret = gc2355_write_reg(gc2355->client, GC2355_PAGE_SELECT, 0x03); + ret = gc2355_write_reg(gc2355->client, GC2355_MODE_SELECT, + GC2355_MODE_SW_STANDBY); + ret = gc2355_write_reg(gc2355->client, GC2355_PAGE_SELECT, 0x00); + return ret; +} + +static int gc2355_s_stream(struct v4l2_subdev *sd, int on) +{ + struct gc2355 *gc2355 = to_gc2355(sd); + struct i2c_client *client = gc2355->client; + int ret = 0; + + mutex_lock(&gc2355->mutex); + on = !!on; + if (on == gc2355->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 = __gc2355_start_stream(gc2355); + if (ret) { + v4l2_err(sd, "start stream failed while write regs\n"); + pm_runtime_put(&client->dev); + goto unlock_and_return; + } + } else { + __gc2355_stop_stream(gc2355); + pm_runtime_put(&client->dev); + } + + gc2355->streaming = on; + +unlock_and_return: + mutex_unlock(&gc2355->mutex); + + return ret; +} + +/* Calculate the delay in us by clock rate and clock cycles */ +static inline u32 gc2355_cal_delay(u32 cycles) +{ + return DIV_ROUND_UP(cycles, GC2355_XVCLK_FREQ / 1000 / 1000); +} + +static int __gc2355_power_on(struct gc2355 *gc2355) +{ + int ret; + u32 delay_us; + struct device *dev = &gc2355->client->dev; + + if (!IS_ERR_OR_NULL(gc2355->pins_default)) { + ret = pinctrl_select_state(gc2355->pinctrl, + gc2355->pins_default); + if (ret < 0) + dev_err(dev, "could not set pins\n"); + } + + ret = clk_prepare_enable(gc2355->xvclk); + if (ret < 0) { + dev_err(dev, "Failed to enable xvclk\n"); + return ret; + } + + if (!IS_ERR(gc2355->reset_gpio)) + gpiod_set_value_cansleep(gc2355->reset_gpio, 0); + + ret = regulator_bulk_enable(GC2355_NUM_SUPPLIES, gc2355->supplies); + if (ret < 0) { + dev_err(dev, "Failed to enable regulators\n"); + goto disable_clk; + } + + if (!IS_ERR(gc2355->reset_gpio)) + gpiod_set_value_cansleep(gc2355->reset_gpio, 1); + + usleep_range(500, 1000); + if (!IS_ERR(gc2355->pwdn_gpio)) + gpiod_set_value_cansleep(gc2355->pwdn_gpio, 1); + + /* 8192 cycles prior to first SCCB transaction */ + delay_us = gc2355_cal_delay(8192); + usleep_range(delay_us, delay_us * 2); + + return 0; + +disable_clk: + clk_disable_unprepare(gc2355->xvclk); + + return ret; +} + +static void __gc2355_power_off(struct gc2355 *gc2355) +{ + int ret; + struct device *dev = &gc2355->client->dev; + + if (!IS_ERR(gc2355->pwdn_gpio)) + gpiod_set_value_cansleep(gc2355->pwdn_gpio, 0); + clk_disable_unprepare(gc2355->xvclk); + if (!IS_ERR(gc2355->reset_gpio)) + gpiod_set_value_cansleep(gc2355->reset_gpio, 0); + if (!IS_ERR_OR_NULL(gc2355->pins_sleep)) { + ret = pinctrl_select_state(gc2355->pinctrl, + gc2355->pins_sleep); + if (ret < 0) + dev_dbg(dev, "could not set pins\n"); + } + regulator_bulk_disable(GC2355_NUM_SUPPLIES, gc2355->supplies); +} + +static int gc2355_runtime_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct gc2355 *gc2355 = to_gc2355(sd); + + return __gc2355_power_on(gc2355); +} + +static int gc2355_runtime_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct gc2355 *gc2355 = to_gc2355(sd); + + __gc2355_power_off(gc2355); + + return 0; +} + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static int gc2355_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct gc2355 *gc2355 = to_gc2355(sd); + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + const struct gc2355_mode *def_mode = &supported_modes[0]; + + mutex_lock(&gc2355->mutex); + /* Initialize try_fmt */ + try_fmt->width = def_mode->width; + try_fmt->height = def_mode->height; + try_fmt->code = MEDIA_BUS_FMT_SRGGB10_1X10; + try_fmt->field = V4L2_FIELD_NONE; + + mutex_unlock(&gc2355->mutex); + /* No crop or compose */ + + return 0; +} +#endif + +static const struct dev_pm_ops gc2355_pm_ops = { + SET_RUNTIME_PM_OPS(gc2355_runtime_suspend, + gc2355_runtime_resume, NULL) +}; + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static const struct v4l2_subdev_internal_ops gc2355_internal_ops = { + .open = gc2355_open, +}; +#endif + +static const struct v4l2_subdev_video_ops gc2355_video_ops = { + .s_stream = gc2355_s_stream, + .g_frame_interval = gc2355_g_frame_interval, +}; + +static const struct v4l2_subdev_pad_ops gc2355_pad_ops = { + .enum_mbus_code = gc2355_enum_mbus_code, + .enum_frame_size = gc2355_enum_frame_sizes, + .get_fmt = gc2355_get_fmt, + .set_fmt = gc2355_set_fmt, +}; + +static const struct v4l2_subdev_ops gc2355_subdev_ops = { + .video = &gc2355_video_ops, + .pad = &gc2355_pad_ops, +}; + +static int gc2355_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct gc2355 *gc2355 = container_of(ctrl->handler, + struct gc2355, ctrl_handler); + struct i2c_client *client = gc2355->client; + s64 max; + int ret = 0; + s32 usGain, temp; + + /* Propagate change of current control to all related controls */ + switch (ctrl->id) { + case V4L2_CID_VBLANK: + /* Update max exposure while meeting expected vblanking */ + max = gc2355->cur_mode->height + ctrl->val - 4; + __v4l2_ctrl_modify_range(gc2355->exposure, + gc2355->exposure->minimum, max, + gc2355->exposure->step, + gc2355->exposure->default_value); + break; + } + + if (pm_runtime_get(&client->dev) <= 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + /* 4 least significant bits of expsoure are fractional part */ + ret = gc2355_write_reg(gc2355->client, + GC2355_PAGE_SELECT, + 0x00); + ret = gc2355_write_reg(gc2355->client, + GC2355_REG_EXPOSURE_H, + (ctrl->val >> 8) & 0x3f); + ret = gc2355_write_reg(gc2355->client, + GC2355_REG_EXPOSURE_L, + ctrl->val & 0xff); + break; + case V4L2_CID_ANALOGUE_GAIN: + usGain = ctrl->val; + ret = gc2355_write_reg(gc2355->client, + GC2355_PAGE_SELECT, + 0x03); + if ((usGain >= GC2355_ANALOG_GAIN_1) && + (usGain < GC2355_ANALOG_GAIN_2)) { + ret = gc2355_write_reg(gc2355->client, + GC2355_ANALOG_GAIN_REG, + 0x00); + temp = usGain; + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_H_REG, + temp >> 6); + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_L_REG, + (temp << 2) & 0xfc); + } else if ((usGain >= GC2355_ANALOG_GAIN_2) && + (usGain < GC2355_ANALOG_GAIN_3)) { + ret = gc2355_write_reg(gc2355->client, + GC2355_ANALOG_GAIN_REG, + 0x01); + temp = 64 * usGain / GC2355_ANALOG_GAIN_2; + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_H_REG, + temp >> 6); + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_L_REG, + (temp << 2) & 0xfc); + } else if ((usGain >= GC2355_ANALOG_GAIN_3) && + (usGain < GC2355_ANALOG_GAIN_4)) { + ret = gc2355_write_reg(gc2355->client, + GC2355_ANALOG_GAIN_REG, + 0x02); + temp = 64 * usGain / GC2355_ANALOG_GAIN_3; + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_H_REG, + temp >> 6); + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_L_REG, + (temp << 2) & 0xfc); + } else if (usGain >= GC2355_ANALOG_GAIN_4) { + ret = gc2355_write_reg(gc2355->client, + GC2355_ANALOG_GAIN_REG, + 0x03); + temp = 64 * usGain / GC2355_ANALOG_GAIN_4; + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_H_REG, + temp >> 6); + ret = gc2355_write_reg(gc2355->client, + GC2355_PREGAIN_L_REG, + (temp << 2) & 0xfc); + } + break; + case V4L2_CID_VBLANK: + ret = gc2355_write_reg(gc2355->client, + GC2355_PAGE_SELECT, + 0x00); + ret = gc2355_write_reg(gc2355->client, + GC2355_REG_VTS_H, + ((ctrl->val + gc2355->cur_mode->height) >> 8) & 0x3f); + ret = gc2355_write_reg(gc2355->client, GC2355_REG_VTS_L, + (ctrl->val + gc2355->cur_mode->height) & + 0xff); + break; + + default: + dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n", + __func__, ctrl->id, ctrl->val); + break; + } + + pm_runtime_put(&client->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops gc2355_ctrl_ops = { + .s_ctrl = gc2355_set_ctrl, +}; + +static int gc2355_initialize_controls(struct gc2355 *gc2355) +{ + const struct gc2355_mode *mode; + struct v4l2_ctrl_handler *handler; + struct v4l2_ctrl *ctrl; + s64 exposure_max, vblank_def; + u32 h_blank; + int ret; + struct device *dev = &gc2355->client->dev; + + dev_info(dev, "Enter %s(%d) !\n", __func__, __LINE__); + handler = &gc2355->ctrl_handler; + mode = gc2355->cur_mode; + ret = v4l2_ctrl_handler_init(handler, 8); + if (ret) + return ret; + handler->lock = &gc2355->mutex; + + ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, + 0, 0, link_freq_menu_items); + if (ctrl) + ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, + 0, GC2355_PIXEL_RATE, 1, GC2355_PIXEL_RATE); + + h_blank = mode->hts_def - mode->width; + gc2355->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, + h_blank, h_blank, 1, h_blank); + if (gc2355->hblank) + gc2355->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + vblank_def = mode->vts_def - mode->height; + gc2355->vblank = v4l2_ctrl_new_std(handler, &gc2355_ctrl_ops, + V4L2_CID_VBLANK, vblank_def, + GC2355_VTS_MAX - mode->height, + 1, vblank_def); + + exposure_max = mode->vts_def - 4; + gc2355->exposure = v4l2_ctrl_new_std(handler, &gc2355_ctrl_ops, + V4L2_CID_EXPOSURE, GC2355_EXPOSURE_MIN, + exposure_max, GC2355_EXPOSURE_STEP, + mode->exp_def); + + gc2355->anal_gain = v4l2_ctrl_new_std(handler, &gc2355_ctrl_ops, + V4L2_CID_ANALOGUE_GAIN, GC2355_GAIN_MIN, + GC2355_GAIN_MAX, GC2355_GAIN_STEP, + GC2355_GAIN_DEFAULT); + + if (handler->error) { + ret = handler->error; + dev_err(&gc2355->client->dev, + "Failed to init controls(%d)\n", ret); + goto err_free_handler; + } + + gc2355->subdev.ctrl_handler = handler; + + return 0; + +err_free_handler: + v4l2_ctrl_handler_free(handler); + + return ret; +} + +static int gc2355_check_sensor_id(struct gc2355 *gc2355, + struct i2c_client *client) +{ + struct device *dev = &gc2355->client->dev; + u8 pid, ver = 0x00; + int ret; + unsigned short id; + + ret = gc2355_read_reg(client, GC2355_REG_CHIP_ID_H, &pid); + if (ret) { + dev_err(dev, "Read chip ID H register error\n"); + return ret; + } + + ret = gc2355_read_reg(client, GC2355_REG_CHIP_ID_L, &ver); + if (ret) { + dev_err(dev, "Read chip ID L register error\n"); + return ret; + } + + id = SENSOR_ID(pid, ver); + if (id != CHIP_ID) { + dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); + return ret; + } + + dev_info(dev, "detected gc%04x sensor\n", id); + + return 0; +} + +static int gc2355_configure_regulators(struct gc2355 *gc2355) +{ + unsigned int i; + + for (i = 0; i < GC2355_NUM_SUPPLIES; i++) + gc2355->supplies[i].supply = gc2355_supply_names[i]; + + return devm_regulator_bulk_get(&gc2355->client->dev, + GC2355_NUM_SUPPLIES, + gc2355->supplies); +} + +static int gc2355_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct gc2355 *gc2355; + struct v4l2_subdev *sd; + int ret; + + gc2355 = devm_kzalloc(dev, sizeof(*gc2355), GFP_KERNEL); + if (!gc2355) + return -ENOMEM; + + gc2355->client = client; + gc2355->cur_mode = &supported_modes[0]; + + gc2355->xvclk = devm_clk_get(dev, "xvclk"); + if (IS_ERR(gc2355->xvclk)) { + dev_err(dev, "Failed to get xvclk\n"); + return -EINVAL; + } + ret = clk_set_rate(gc2355->xvclk, GC2355_XVCLK_FREQ); + if (ret < 0) { + dev_err(dev, "Failed to set xvclk rate (24MHz)\n"); + return ret; + } + if (clk_get_rate(gc2355->xvclk) != GC2355_XVCLK_FREQ) + dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); + + gc2355->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(gc2355->reset_gpio)) + dev_warn(dev, "Failed to get reset-gpios\n"); + + gc2355->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); + if (IS_ERR(gc2355->pwdn_gpio)) + dev_warn(dev, "Failed to get pwdn-gpios\n"); + + gc2355->pinctrl = devm_pinctrl_get(dev); + if (!IS_ERR(gc2355->pinctrl)) { + gc2355->pins_default = + pinctrl_lookup_state(gc2355->pinctrl, + OF_CAMERA_PINCTRL_STATE_DEFAULT); + if (IS_ERR(gc2355->pins_default)) + dev_err(dev, "could not get default pinstate\n"); + + gc2355->pins_sleep = + pinctrl_lookup_state(gc2355->pinctrl, + OF_CAMERA_PINCTRL_STATE_SLEEP); + if (IS_ERR(gc2355->pins_sleep)) + dev_err(dev, "could not get sleep pinstate\n"); + } else { + dev_err(dev, "no pinctrl\n"); + } + + ret = gc2355_configure_regulators(gc2355); + if (ret) { + dev_err(dev, "Failed to get power regulators\n"); + return ret; + } + + mutex_init(&gc2355->mutex); + + sd = &gc2355->subdev; + v4l2_i2c_subdev_init(sd, client, &gc2355_subdev_ops); + ret = gc2355_initialize_controls(gc2355); + if (ret) + goto err_destroy_mutex; + + ret = __gc2355_power_on(gc2355); + if (ret) + goto err_free_handler; + + ret = gc2355_check_sensor_id(gc2355, client); + if (ret) + goto err_power_off; + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + sd->internal_ops = &gc2355_internal_ops; + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; +#endif +#if defined(CONFIG_MEDIA_CONTROLLER) + gc2355->pad.flags = MEDIA_PAD_FL_SOURCE; + sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; + ret = media_entity_init(&sd->entity, 1, &gc2355->pad, 0); + if (ret < 0) + goto err_power_off; +#endif + + ret = v4l2_async_register_subdev(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: + __gc2355_power_off(gc2355); +err_free_handler: + v4l2_ctrl_handler_free(&gc2355->ctrl_handler); +err_destroy_mutex: + mutex_destroy(&gc2355->mutex); + + return ret; +} + +static int gc2355_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct gc2355 *gc2355 = to_gc2355(sd); + + v4l2_async_unregister_subdev(sd); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + v4l2_ctrl_handler_free(&gc2355->ctrl_handler); + mutex_destroy(&gc2355->mutex); + + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + __gc2355_power_off(gc2355); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id gc2355_of_match[] = { + { .compatible = "galaxycore,gc2355" }, + {}, +}; +MODULE_DEVICE_TABLE(of, gc2355_of_match); +#endif + +static const struct i2c_device_id gc2355_match_id[] = { + { "galaxycore,gc2355", 0 }, + { }, +}; + +static struct i2c_driver gc2355_i2c_driver = { + .driver = { + .name = "gc2355", + .pm = &gc2355_pm_ops, + .of_match_table = of_match_ptr(gc2355_of_match), + }, + .probe = &gc2355_probe, + .remove = &gc2355_remove, + .id_table = gc2355_match_id, +}; + +static int __init sensor_mod_init(void) +{ + return i2c_add_driver(&gc2355_i2c_driver); +} + +static void __exit sensor_mod_exit(void) +{ + i2c_del_driver(&gc2355_i2c_driver); +} + +device_initcall_sync(sensor_mod_init); +module_exit(sensor_mod_exit); + +MODULE_DESCRIPTION("GC2355 CMOS Image Sensor driver"); +MODULE_LICENSE("GPL v2");