From 4a1cccace92a44c407f26141a52f1bc7eb88e10f Mon Sep 17 00:00:00 2001 From: Yiqing Zeng Date: Thu, 27 Aug 2020 14:19:24 +0800 Subject: [PATCH] media: i2c: add sc2310 sensor driver Signed-off-by: Yiqing Zeng Change-Id: I240aea1457bf344a1ca6b410433ddf75edb33deb --- drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/sc2310.c | 1914 ++++++++++++++++++++++++++++++++++++ 3 files changed, 1926 insertions(+) create mode 100644 drivers/media/i2c/sc2310.c diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index a5163c63664b..208efc76458f 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -1475,6 +1475,17 @@ config VIDEO_SC132GS To compile this driver as a module, choose M here: the module will be called sc132gs. +config VIDEO_SC2310 + tristate "SmartSens SC2310 sensor support" + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CAMERA_SUPPORT + select V4L2_FWNODE + help + Support for the SmartSens SC2310 sensor. + + To compile this driver as a module, choose M here: the + module will be called sc2310. + comment "Flash devices" config VIDEO_ADP1653 diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index f981d4778fee..66942b95e0d6 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -157,5 +157,6 @@ obj-$(CONFIG_VIDEO_BF3925) += bf3925.o obj-$(CONFIG_VIDEO_JX_H65) += jx_h65.o obj-$(CONFIG_VIDEO_SC031GS) += sc031gs.o obj-$(CONFIG_VIDEO_SC132GS) += sc132gs.o +obj-$(CONFIG_VIDEO_SC2310) += sc2310.o obj-$(CONFIG_SDR_MAX2175) += max2175.o diff --git a/drivers/media/i2c/sc2310.c b/drivers/media/i2c/sc2310.c new file mode 100644 index 000000000000..fca5456e7298 --- /dev/null +++ b/drivers/media/i2c/sc2310.c @@ -0,0 +1,1914 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * sc2310 driver + * + * Copyright (C) 2020 Fuzhou Rockchip Electronics Co., Ltd. + * + * V0.0X01.0X00 first version,adjust sc2310. + */ + +//#define DEBUG +#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, 0x00) + +#ifndef V4L2_CID_DIGITAL_GAIN +#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN +#endif + +#define MIPI_FREQ_186M 186000000 //371.25Mbps/lane +#define MIPI_FREQ_380M 380000000 //760Mbps/lane + +#define SC2310_MAX_PIXEL_RATE (MIPI_FREQ_380M * 2 / 10 * 2) +#define OF_CAMERA_HDR_MODE "rockchip,camera-hdr-mode" + +#define SC2310_XVCLK_FREQ 24000000 + +#define CHIP_ID 0x2311 +#define SC2310_REG_CHIP_ID 0x3107 + +#define SC2310_REG_CTRL_MODE 0x0100 +#define SC2310_MODE_SW_STANDBY 0x0 +#define SC2310_MODE_STREAMING BIT(0) + +#define SC2310_EXPOSURE_MIN 3 +#define SC2310_EXPOSURE_STEP 1 +#define SC2310_VTS_MAX 0xffff + +//long exposure +#define SC2310_REG_EXP_LONG_H 0x3e00 //[3:0] +#define SC2310_REG_EXP_LONG_M 0x3e01 //[7:0] +#define SC2310_REG_EXP_LONG_L 0x3e02 //[7:4] + +//short exposure +#define SC2310_REG_EXP_SF_H 0x3e04 //[7:0] +#define SC2310_REG_EXP_SF_L 0x3e05 //[7:4] + +//long frame and normal gain reg +#define SC2310_REG_AGAIN 0x3e08 +#define SC2310_REG_AGAIN_FINE 0x3e09 + +#define SC2310_REG_DGAIN 0x3e06 +#define SC2310_REG_DGAIN_FINE 0x3e07 + +//short fram gain reg +#define SC2310_SF_REG_AGAIN 0x3e12 +#define SC2310_SF_REG_AGAIN_FINE 0x3e13 + +#define SC2310_SF_REG_DGAIN 0x3e10 +#define SC2310_SF_REG_DGAIN_FINE 0x3e11 + +#define SC2310_GAIN_MIN 0x40 +#define SC2310_GAIN_MAX 0x8000 +#define SC2310_GAIN_STEP 1 +#define SC2310_GAIN_DEFAULT 0x40 + +//group hold +#define SC2310_GROUP_UPDATE_ADDRESS 0x3812 +#define SC2310_GROUP_UPDATE_START_DATA 0x00 +#define SC2310_GROUP_UPDATE_LAUNCH 0x30 + +#define SC2310_SOFTWARE_RESET_REG 0x0103 +#define SC2310_REG_TEST_PATTERN 0x4501 +#define SC2310_TEST_PATTERN_ENABLE 0x80 +#define SC2310_TEST_PATTERN_DISABLE 0x0 + +#define SC2310_REG_VTS 0x320e +#define REG_NULL 0xFFFF + +#define SC2310_REG_VALUE_08BIT 1 +#define SC2310_REG_VALUE_16BIT 2 +#define SC2310_REG_VALUE_24BIT 3 + +#define SC2310_LANES 2 +#define LONG_FRAME_MAX_EXP 4297 +#define SHORT_FRAME_MAX_EXP 260 + +#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" +#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" + +#define SC2310_NAME "sc2310" + +static const char * const sc2310_supply_names[] = { + "avdd", /* Analog power */ + "dovdd", /* Digital I/O power */ + "dvdd", /* Digital core power */ +}; + +#define SC2310_NUM_SUPPLIES ARRAY_SIZE(sc2310_supply_names) + +enum sc2310_max_pad { + PAD0, + PAD1, + PAD2, + PAD3, + PAD_MAX, +}; + +struct regval { + u16 addr; + u8 val; +}; + +struct sc2310_mode { + u32 bus_fmt; + u32 width; + u32 height; + struct v4l2_fract max_fps; + u32 hts_def; + u32 vts_def; + u32 exp_def; + const struct regval *reg_list; + u32 hdr_mode; + u32 mipi_freq_idx; + u32 bpp; + u32 vc[PAD_MAX]; +}; + +struct sc2310 { + struct i2c_client *client; + struct clk *xvclk; + struct gpio_desc *reset_gpio; + struct gpio_desc *pwdn_gpio; + struct regulator_bulk_data supplies[SC2310_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 v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *link_freq; + struct mutex mutex; + bool streaming; + bool power_on; + const struct sc2310_mode *cur_mode; + u32 cfg_num; + u32 module_index; + const char *module_facing; + const char *module_name; + const char *len_name; + bool has_init_exp; + u32 cur_vts; + struct preisp_hdrae_exp_s init_hdrae_exp; +}; + +#define to_sc2310(sd) container_of(sd, struct sc2310, subdev) + +/* + * Xclk 24Mhz linear 1920*1080 30fps 37.125Mbps/lane + */ +static const struct regval sc2310_linear10bit_1920x1080_regs[] = { + {0x0103, 0x01}, + {0x0100, 0x00}, + {0x36e9, 0x80}, + {0x36f9, 0x80}, + {0x3001, 0xfe}, + {0x3018, 0x33}, + {0x3019, 0x0c}, + {0x301c, 0x78}, + {0x301f, 0x40}, + {0x3031, 0x0a}, + {0x3037, 0x22}, + {0x3038, 0x22}, + {0x303f, 0x01}, + {0x3200, 0x00}, + {0x3201, 0x04}, + {0x3202, 0x00}, + {0x3203, 0x04}, + {0x3204, 0x07}, + {0x3205, 0x8b}, + {0x3206, 0x04}, + {0x3207, 0x43}, + {0x3208, 0x07}, + {0x3209, 0x80}, + {0x320a, 0x04}, + {0x320b, 0x38}, + {0x320c, 0x04}, + {0x320d, 0x4c}, + {0x3210, 0x00}, + {0x3211, 0x04}, + {0x3212, 0x00}, + {0x3213, 0x04}, + {0x3301, 0x10}, + {0x3302, 0x10}, + {0x3303, 0x18}, + {0x3306, 0x60}, + {0x3308, 0x08}, + {0x3309, 0x30}, + {0x330a, 0x00}, + {0x330b, 0xc8}, + {0x330e, 0x28}, + {0x3314, 0x04}, + {0x331b, 0x83}, + {0x331e, 0x11}, + {0x331f, 0x29}, + {0x3320, 0x01}, + {0x3324, 0x02}, + {0x3325, 0x02}, + {0x3326, 0x00}, + {0x3333, 0x30}, + {0x3334, 0x40}, + {0x333d, 0x08}, + {0x3341, 0x07}, + {0x3343, 0x03}, + {0x3364, 0x1d}, + {0x3366, 0x80}, + {0x3367, 0x08}, + {0x3368, 0x04}, + {0x3369, 0x00}, + {0x336a, 0x00}, + {0x336b, 0x00}, + {0x336c, 0x42}, + {0x337f, 0x03}, + {0x3380, 0x1b}, + {0x33aa, 0x00}, + {0x33b6, 0x07}, + {0x33b7, 0x07}, + {0x33b8, 0x10}, + {0x33b9, 0x10}, + {0x33ba, 0x10}, + {0x33bb, 0x07}, + {0x33bc, 0x07}, + {0x33bd, 0x20}, + {0x33be, 0x20}, + {0x33bf, 0x20}, + {0x360f, 0x05}, + {0x3621, 0xac}, + {0x3622, 0xe6}, + {0x3623, 0x18}, + {0x3624, 0x47}, + {0x3630, 0xc8}, + {0x3631, 0x88}, + {0x3632, 0x18}, + {0x3633, 0x22}, + {0x3634, 0x44}, + {0x3635, 0x40}, + {0x3636, 0x65}, + {0x3637, 0x17}, + {0x3638, 0x25}, + {0x363b, 0x08}, + {0x363c, 0x05}, + {0x363d, 0x05}, + {0x3640, 0x00}, + {0x366e, 0x04}, + {0x3670, 0x4a}, + {0x3671, 0xf6}, + {0x3672, 0x16}, + {0x3673, 0x16}, + {0x3674, 0xc8}, + {0x3675, 0x54}, + {0x3676, 0x18}, + {0x3677, 0x22}, + {0x3678, 0x33}, + {0x3679, 0x44}, + {0x367a, 0x40}, + {0x367b, 0x40}, + {0x367c, 0x40}, + {0x367d, 0x58}, + {0x367e, 0x40}, + {0x367f, 0x58}, + {0x3696, 0x83}, + {0x3697, 0x87}, + {0x3698, 0x9f}, + {0x36a0, 0x58}, + {0x36a1, 0x78}, + {0x36ea, 0x9f}, + {0x36eb, 0x0e}, + {0x36ec, 0x1e}, + {0x36ed, 0x03}, + {0x36fa, 0xf8}, + {0x36fb, 0x10}, + {0x3802, 0x00}, + {0x3907, 0x01}, + {0x3908, 0x01}, + {0x391e, 0x00}, + {0x391f, 0xc0}, + {0x3933, 0x28}, + {0x3934, 0x0a}, + {0x3940, 0x1b}, + {0x3941, 0x40}, + {0x3942, 0x08}, + {0x3943, 0x0e}, + {0x3e00, 0x00}, + {0x3e01, 0x8c}, + {0x3e02, 0x40}, + {0x3e03, 0x0b}, + {0x3e06, 0x00}, + {0x3e07, 0x80}, + {0x3e08, 0x03}, + {0x3e09, 0x40}, + {0x3e0e, 0x66}, + {0x3e14, 0xb0}, + {0x3e1e, 0x35}, + {0x3e25, 0x03}, + {0x3e26, 0x40}, + {0x3f00, 0x0d}, + {0x3f04, 0x02}, + {0x3f05, 0x1e}, + {0x3f08, 0x04}, + {0x4500, 0x59}, + {0x4501, 0xb4}, + {0x4509, 0x20}, + {0x4603, 0x00}, + {0x4809, 0x01}, + {0x4837, 0x35}, + {0x5000, 0x06}, + {0x5780, 0x7f}, + {0x5781, 0x06}, + {0x5782, 0x04}, + {0x5783, 0x02}, + {0x5784, 0x01}, + {0x5785, 0x16}, + {0x5786, 0x12}, + {0x5787, 0x08}, + {0x5788, 0x02}, + {0x57a0, 0x00}, + {0x57a1, 0x74}, + {0x57a2, 0x01}, + {0x57a3, 0xf4}, + {0x57a4, 0xf0}, + {0x6000, 0x00}, + {0x6002, 0x00}, + {0x36e9, 0x51}, + {0x36f9, 0x04}, + {REG_NULL, 0x00}, +}; + +/* + * Xclk 24Mhz hdr 2to1 STAGGER 1920*1080 30fps 760Mbps/lane + */ +static __maybe_unused const struct regval sc2310_hdr10bit_1920x1080_regs[] = { + {0x0103, 0x01}, + {0x0100, 0x00}, + {0x36e9, 0xa6}, + {0x36f9, 0x85}, + {0x4509, 0x10}, + {0x337f, 0x03}, + {0x3368, 0x04}, + {0x3369, 0x00}, + {0x336a, 0x00}, + {0x336b, 0x00}, + {0x3367, 0x08}, + {0x3326, 0x00}, + {0x3631, 0x88}, + {0x3018, 0x33}, + {0x3031, 0x0a}, + {0x3001, 0xfe}, + {0x4603, 0x00}, + {0x303f, 0x01}, + {0x3640, 0x00}, + {0x3907, 0x01}, + {0x3908, 0x01}, + {0x3320, 0x01}, + {0x57a4, 0xf0}, + {0x3333, 0x30}, + {0x331b, 0x83}, + {0x3334, 0x40}, + {0x3302, 0x10}, + {0x36eb, 0x0a}, + {0x36ec, 0x0e}, + {0x3f08, 0x04}, + {0x4501, 0xa4}, + {0x3309, 0x48}, + {0x331f, 0x39}, + {0x330a, 0x00}, + {0x3308, 0x10}, + {0x3366, 0xc0}, + {0x33aa, 0x00}, + {0x391e, 0x00}, + {0x391f, 0xc0}, + {0x3634, 0x44}, + {0x4500, 0x59}, + {0x3623, 0x18}, + {0x3f00, 0x0d}, + {0x336c, 0x42}, + {0x3933, 0x28}, + {0x3934, 0x0a}, + {0x3940, 0x1b}, + {0x3941, 0x40}, + {0x3942, 0x08}, + {0x3943, 0x0e}, + {0x3624, 0x47}, + {0x3621, 0xac}, + {0x3222, 0x29}, + {0x3901, 0x02}, + {0x363b, 0x08}, + {0x363c, 0x05}, + {0x363d, 0x05}, + {0x3324, 0x02}, + {0x3325, 0x02}, + {0x333d, 0x08}, + {0x3314, 0x04}, + {0x3802, 0x00}, + {0x3e14, 0xb0}, + {0x3e1e, 0x35}, + {0x3e0e, 0x66}, + {0x3364, 0x1d}, + {0x33b6, 0x07}, + {0x33b7, 0x07}, + {0x33b8, 0x10}, + {0x33b9, 0x10}, + {0x33ba, 0x10}, + {0x33bb, 0x07}, + {0x33bc, 0x07}, + {0x33bd, 0x18}, + {0x33be, 0x18}, + {0x33bf, 0x18}, + {0x360f, 0x05}, + {0x367a, 0x40}, + {0x367b, 0x40}, + {0x3671, 0xf6}, + {0x3672, 0x16}, + {0x3673, 0x16}, + {0x366e, 0x04}, + {0x367c, 0x40}, + {0x367d, 0x58}, + {0x3674, 0xc8}, + {0x3675, 0x54}, + {0x3676, 0x18}, + {0x367e, 0x40}, + {0x367f, 0x58}, + {0x3677, 0x22}, + {0x3678, 0x53}, + {0x3679, 0x55}, + {0x36a0, 0x58}, + {0x36a1, 0x78}, + {0x3696, 0x9f}, + {0x3697, 0x9f}, + {0x3698, 0x9f}, + {0x301c, 0x78}, + {0x3037, 0x24}, + {0x3038, 0x44}, + {0x3632, 0x18}, + {0x4809, 0x01}, + {0x3625, 0x01}, + {0x3670, 0x6a}, + {0x369e, 0x40}, + {0x369f, 0x40}, + {0x3693, 0x20}, + {0x3694, 0x40}, + {0x3695, 0x40}, + {0x5000, 0x06}, + {0x5780, 0x7f}, + {0x57a0, 0x00}, + {0x57a1, 0x74}, + {0x57a2, 0x01}, + {0x57a3, 0xf4}, + {0x5781, 0x06}, + {0x5782, 0x04}, + {0x5783, 0x02}, + {0x5784, 0x01}, + {0x5785, 0x16}, + {0x5786, 0x12}, + {0x5787, 0x08}, + {0x5788, 0x02}, + {0x3637, 0x0c}, + {0x3638, 0x24}, + {0x3200, 0x00}, + {0x3201, 0x04}, + {0x3202, 0x00}, + {0x3203, 0x00}, + {0x3204, 0x07}, + {0x3205, 0x8b}, + {0x3206, 0x04}, + {0x3207, 0x3f}, + {0x3208, 0x07}, + {0x3209, 0x80}, + {0x320a, 0x04}, + {0x320b, 0x38}, + {0x3211, 0x04}, + {0x3213, 0x04}, + {0x3380, 0x1b}, + {0x3341, 0x07}, + {0x3343, 0x03}, + {0x3e25, 0x03}, + {0x3e26, 0x40}, + {0x391d, 0x24}, + {0x36ea, 0x2d}, + {0x36ed, 0x23}, + {0x36fa, 0x6a}, + {0x36fb, 0x20}, + {0x320c, 0x04}, + {0x320d, 0x76}, + {0x3636, 0xa8}, + {0x3f04, 0x02}, + {0x3f05, 0x33}, + {0x4837, 0x1a}, + {0x331e, 0x21}, + {0x3303, 0x30}, + {0x330b, 0xb8}, + {0x3306, 0x5c}, + {0x330e, 0x30}, + {0x4816, 0x51}, + {0x3220, 0x51}, + {0x4602, 0x0f}, + {0x33c0, 0x05}, + {0x6000, 0x06}, + {0x6002, 0x06}, + {0x320e, 0x08}, + {0x320f, 0xaa}, + {0x3e00, 0x01}, + {0x3e01, 0x03}, + {0x3e02, 0xe0}, + {0x3e04, 0x10}, + {0x3e05, 0x40}, + {0x3e23, 0x00}, + {0x3e24, 0x86}, + {0x3e03, 0x0b}, + {0x3e06, 0x00}, + {0x3e07, 0x80}, + {0x3e08, 0x03}, + {0x3e09, 0x40}, + {0x3622, 0xf6}, + {0x3633, 0x22}, + {0x3630, 0xc8}, + {0x3301, 0x10}, + {0x363a, 0x83}, + {0x3635, 0x20}, + {0x36e9, 0x40}, + {0x36f9, 0x05}, + {REG_NULL, 0x00}, +}; + +/* + * The width and height must be configured to be + * the same as the current output resolution of the sensor. + * The input width of the isp needs to be 16 aligned. + * The input height of the isp needs to be 8 aligned. + * If the width or height does not meet the alignment rules, + * you can configure the cropping parameters with the following function to + * crop out the appropriate resolution. + * struct v4l2_subdev_pad_ops { + * .get_selection + * } + */ +static const struct sc2310_mode supported_modes[] = { + { + /* linear modes */ + .bus_fmt = MEDIA_BUS_FMT_SBGGR10_1X10, + .width = 1920, + .height = 1080, + .max_fps = { + .numerator = 10000, + .denominator = 300000, + }, + .exp_def = 0x048c, + .hts_def = 0x044c * 2, + .vts_def = 0x0465, + .reg_list = sc2310_linear10bit_1920x1080_regs, + .hdr_mode = NO_HDR, + .mipi_freq_idx = 0, + .bpp = 10, + .vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0, + }, + { + /* 2 to 1 hdr */ + .bus_fmt = MEDIA_BUS_FMT_SBGGR10_1X10, + .width = 1920, + .height = 1080, + .max_fps = { + .numerator = 10000, + .denominator = 300000, + }, + .exp_def = 0x103e, + .hts_def = 0x0476 * 2, + .vts_def = 0x08aa, + .reg_list = sc2310_hdr10bit_1920x1080_regs, + .hdr_mode = HDR_X2, + .mipi_freq_idx = 1, + .bpp = 10, + .vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_1, + .vc[PAD1] = V4L2_MBUS_CSI2_CHANNEL_0,//L->csi wr0 + .vc[PAD2] = V4L2_MBUS_CSI2_CHANNEL_1, + .vc[PAD3] = V4L2_MBUS_CSI2_CHANNEL_1,//M->csi wr2 + }, +}; + +static const s64 link_freq_items[] = { + MIPI_FREQ_186M, + MIPI_FREQ_380M, +}; + +static const char * const sc2310_test_pattern_menu[] = { + "Disabled", + "Vertical Color Bar Type 1", + "Vertical Color Bar Type 2", + "Vertical Color Bar Type 3", + "Vertical Color Bar Type 4" +}; + +/* Write registers up to 4 at a time */ +static int sc2310_write_reg(struct i2c_client *client, u16 reg, + u32 len, u32 val) +{ + u32 buf_i, val_i; + u8 buf[6]; + u8 *val_p; + __be32 val_be; + + if (len > 4) + return -EINVAL; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + + val_be = cpu_to_be32(val); + val_p = (u8 *)&val_be; + buf_i = 2; + val_i = 4 - len; + + while (val_i < 4) + buf[buf_i++] = val_p[val_i++]; + + if (i2c_master_send(client, buf, len + 2) != len + 2) + return -EIO; + + return 0; +} + +static int sc2310_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 |= sc2310_write_reg(client, regs[i].addr, + SC2310_REG_VALUE_08BIT, regs[i].val); + } + return ret; +} + +/* Read registers up to 4 at a time */ +static int sc2310_read_reg(struct i2c_client *client, + u16 reg, + unsigned int len, + u32 *val) +{ + struct i2c_msg msgs[2]; + u8 *data_be_p; + __be32 data_be = 0; + __be16 reg_addr_be = cpu_to_be16(reg); + int ret; + + if (len > 4 || !len) + return -EINVAL; + + data_be_p = (u8 *)&data_be; + /* Write register address */ + msgs[0].addr = client->addr; + msgs[0].flags = 0; + msgs[0].len = 2; + msgs[0].buf = (u8 *)®_addr_be; + + /* Read data from register */ + msgs[1].addr = client->addr; + msgs[1].flags = I2C_M_RD; + msgs[1].len = len; + msgs[1].buf = &data_be_p[4 - len]; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *val = be32_to_cpu(data_be); + + return 0; +} + +static int sc2310_get_reso_dist(const struct sc2310_mode *mode, + struct v4l2_mbus_framefmt *framefmt) +{ + return abs(mode->width - framefmt->width) + + abs(mode->height - framefmt->height); +} + +static const struct sc2310_mode * +sc2310_find_best_fit(struct sc2310 *sc2310, 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 < sc2310->cfg_num; i++) { + dist = sc2310_get_reso_dist(&supported_modes[i], framefmt); + if ((cur_best_fit_dist == -1 || dist <= cur_best_fit_dist) && + (supported_modes[i].bus_fmt == framefmt->code)) { + cur_best_fit_dist = dist; + cur_best_fit = i; + } + } + + return &supported_modes[cur_best_fit]; +} + +static void sc2310_change_mode(struct sc2310 *sc2310, const struct sc2310_mode *mode) +{ + sc2310->cur_mode = mode; + sc2310->cur_vts = sc2310->cur_mode->vts_def; + dev_info(&sc2310->client->dev, "set fmt: cur_mode: %dx%d, hdr: %d\n", + mode->width, mode->height, mode->hdr_mode); +} + +static int sc2310_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + const struct sc2310_mode *mode; + s64 h_blank, vblank_def; + u64 pixel_rate = 0; + + mutex_lock(&sc2310->mutex); + + mode = sc2310_find_best_fit(sc2310, fmt); + fmt->format.code = mode->bus_fmt; + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.field = V4L2_FIELD_NONE; + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format; +#else + mutex_unlock(&sc2310->mutex); + return -ENOTTY; +#endif + } else { + sc2310_change_mode(sc2310, mode); + h_blank = mode->hts_def - mode->width; + __v4l2_ctrl_modify_range(sc2310->hblank, h_blank, + h_blank, 1, h_blank); + vblank_def = mode->vts_def - mode->height; + __v4l2_ctrl_modify_range(sc2310->vblank, vblank_def, + SC2310_VTS_MAX - mode->height, + 1, vblank_def); + __v4l2_ctrl_s_ctrl(sc2310->link_freq, mode->mipi_freq_idx); + pixel_rate = (u32)link_freq_items[mode->mipi_freq_idx] / + mode->bpp * 2 * SC2310_LANES; + __v4l2_ctrl_s_ctrl_int64(sc2310->pixel_rate, pixel_rate); + } + + mutex_unlock(&sc2310->mutex); + + return 0; +} + +static int sc2310_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + const struct sc2310_mode *mode = sc2310->cur_mode; + + mutex_lock(&sc2310->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(&sc2310->mutex); + return -ENOTTY; +#endif + } else { + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = mode->bus_fmt; + fmt->format.field = V4L2_FIELD_NONE; + if (fmt->pad < PAD_MAX && mode->hdr_mode != NO_HDR) + fmt->reserved[0] = mode->vc[fmt->pad]; + else + fmt->reserved[0] = mode->vc[PAD0]; + } + mutex_unlock(&sc2310->mutex); + + return 0; +} + +static int sc2310_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + + if (code->index != 0) + return -EINVAL; + code->code = sc2310->cur_mode->bus_fmt; + + return 0; +} + +static int sc2310_enum_frame_sizes(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + + if (fse->index >= sc2310->cfg_num) + return -EINVAL; + + if (fse->code != supported_modes[fse->index].bus_fmt) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = supported_modes[fse->index].width; + fse->max_height = supported_modes[fse->index].height; + fse->min_height = supported_modes[fse->index].height; + + return 0; +} + +static int sc2310_enable_test_pattern(struct sc2310 *sc2310, u32 pattern) +{ + u32 val; + + if (pattern) + val = (pattern - 1) | SC2310_TEST_PATTERN_ENABLE; + else + val = SC2310_TEST_PATTERN_DISABLE; + + return sc2310_write_reg(sc2310->client, SC2310_REG_TEST_PATTERN, + SC2310_REG_VALUE_08BIT, val); +} + +static int sc2310_g_frame_interval(struct v4l2_subdev *sd, + struct v4l2_subdev_frame_interval *fi) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + const struct sc2310_mode *mode = sc2310->cur_mode; + + mutex_lock(&sc2310->mutex); + fi->interval = mode->max_fps; + mutex_unlock(&sc2310->mutex); + + return 0; +} + +static int sc2310_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *config) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + const struct sc2310_mode *mode = sc2310->cur_mode; + u32 val = 0; + + if (mode->hdr_mode == NO_HDR) + val = 1 << (SC2310_LANES - 1) | + V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; + if (mode->hdr_mode == HDR_X2) + val = 1 << (SC2310_LANES - 1) | + V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK | + V4L2_MBUS_CSI2_CHANNEL_1; + + config->type = V4L2_MBUS_CSI2; + config->flags = val; + + return 0; +} + +static void sc2310_get_module_inf(struct sc2310 *sc2310, + struct rkmodule_inf *inf) +{ + memset(inf, 0, sizeof(*inf)); + strlcpy(inf->base.sensor, SC2310_NAME, sizeof(inf->base.sensor)); + strlcpy(inf->base.module, sc2310->module_name, + sizeof(inf->base.module)); + strlcpy(inf->base.lens, sc2310->len_name, sizeof(inf->base.lens)); +} + +static void sc2310_get_gain_reg(u32 val, u32 *again_reg, u32 *again_fine_reg, + u32 *dgain_reg, u32 *dgain_fine_reg) +{ + u32 again = 0, again_fine = 0; + u32 dgain = 0, dgain_fine = 0; + u32 total_gain = val; + + if (total_gain < 0x80) {/* 1x gain ~ 2x gain */ + again = 0x3; + again_fine = total_gain; + dgain = 0x0; + dgain_fine = 0x80; + } else if (total_gain < 0x100) {/* 2x gain ~ 4x gain*/ + again = 0x7; + again_fine = total_gain >> 1; + dgain = 0x0; + dgain_fine = 0x80; + } else if (total_gain < 0x200) {/* 4x gain ~ 8x gain*/ + again = 0xf; + again_fine = total_gain >> 2; + dgain = 0x0; + dgain_fine = 0x80; + } else if (total_gain < 0x400) {/* 8x gain ~ 16x gain*/ + again = 0x1f; + again_fine = total_gain >> 3; + dgain = 0x0; + dgain_fine = 0x80; + } else if (total_gain < 0x800) {/* 16x gain ~ 32x gain*/ + again = 0x1f; + again_fine = 0x7f; + dgain = 0x0; + dgain_fine = total_gain >> 3; + } else if (total_gain < 0x1000) {/* 32x gain ~ 64x gain*/ + again = 0x1f; + again_fine = 0x7f; + dgain = 0x1; + dgain_fine = total_gain >> 4; + } else if (total_gain < 0x2000) {/* 64x gain ~ 128x gain*/ + again = 0x1f; + again_fine = 0x7f; + dgain = 0x3; + dgain_fine = total_gain >> 5; + } else if (total_gain < 0x4000) {/* 128x gain ~ 256x gain*/ + again = 0x1f; + again_fine = 0x7f; + dgain = 0x7; + dgain_fine = total_gain >> 6; + } else if (total_gain < 0x8000) {/* 256x gain ~ 512x gain*/ + again = 0x1f; + again_fine = 0x7f; + dgain = 0xf; + dgain_fine = total_gain >> 7; + } + + *again_reg = again; + *again_fine_reg = again_fine; + *dgain_reg = dgain; + *dgain_fine_reg = dgain_fine; +} + +static int sc2310_set_hdrae(struct sc2310 *sc2310, + struct preisp_hdrae_exp_s *ae) +{ + struct i2c_client *client = sc2310->client; + u32 l_exp_time, m_exp_time, s_exp_time; + u32 l_a_gain, m_a_gain, s_a_gain; + u32 l_again, l_again_fine, l_dgain, l_dgain_fine; + u32 s_again, s_again_fine, s_dgain, s_dgain_fine; + int ret = 0; + + if (!sc2310->has_init_exp && !sc2310->streaming) { + sc2310->init_hdrae_exp = *ae; + sc2310->has_init_exp = true; + dev_dbg(&client->dev, "sc2310 is not streaming, save hdr ae!\n"); + return ret; + } + + l_exp_time = ae->long_exp_reg; + m_exp_time = ae->middle_exp_reg; + s_exp_time = ae->short_exp_reg; + l_a_gain = ae->long_gain_reg; + m_a_gain = ae->middle_gain_reg; + s_a_gain = ae->short_gain_reg; + dev_dbg(&client->dev, + "rev exp req: L_exp: 0x%x, 0x%x, M_exp: 0x%x, 0x%x S_exp: 0x%x, 0x%x\n", + l_exp_time, m_exp_time, s_exp_time, + l_a_gain, m_a_gain, s_a_gain); + + if (sc2310->cur_mode->hdr_mode == HDR_X2) { + l_a_gain = m_a_gain; + l_exp_time = m_exp_time; + } + sc2310_get_gain_reg(l_a_gain, &l_again, &l_again_fine, &l_dgain, &l_dgain_fine); + sc2310_get_gain_reg(s_a_gain, &s_again, &s_again_fine, &s_dgain, &s_dgain_fine); + + l_exp_time = l_exp_time << 1; + s_exp_time = s_exp_time << 1; + + if (l_exp_time > LONG_FRAME_MAX_EXP) + l_exp_time = LONG_FRAME_MAX_EXP; + + if (s_exp_time > SHORT_FRAME_MAX_EXP) + s_exp_time = SHORT_FRAME_MAX_EXP; + + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_L, + SC2310_REG_VALUE_08BIT, + (l_exp_time << 4 & 0XF0)); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_M, + SC2310_REG_VALUE_08BIT, + (l_exp_time >> 4 & 0XFF)); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_H, + SC2310_REG_VALUE_08BIT, + (l_exp_time >> 12 & 0X0F)); + + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_AGAIN, + SC2310_REG_VALUE_08BIT, + l_again); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_AGAIN_FINE, + SC2310_REG_VALUE_08BIT, + l_again_fine); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_DGAIN, + SC2310_REG_VALUE_08BIT, + l_dgain); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_DGAIN_FINE, + SC2310_REG_VALUE_08BIT, + l_dgain_fine); + + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_SF_L, + SC2310_REG_VALUE_08BIT, + (s_exp_time << 4 & 0XF0)); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_SF_H, + SC2310_REG_VALUE_08BIT, + (s_exp_time >> 4 & 0XFF)); + + ret |= sc2310_write_reg(sc2310->client, + SC2310_SF_REG_AGAIN, + SC2310_REG_VALUE_08BIT, + s_again); + ret |= sc2310_write_reg(sc2310->client, + SC2310_SF_REG_AGAIN_FINE, + SC2310_REG_VALUE_08BIT, + s_again_fine); + ret |= sc2310_write_reg(sc2310->client, + SC2310_SF_REG_DGAIN, + SC2310_REG_VALUE_08BIT, + s_dgain); + ret |= sc2310_write_reg(sc2310->client, + SC2310_SF_REG_DGAIN_FINE, + SC2310_REG_VALUE_08BIT, + s_dgain_fine); + if (ret) + return ret; + return 0; +} + +static long sc2310_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + struct rkmodule_hdr_cfg *hdr_cfg; + const struct sc2310_mode *mode; + long ret = 0; + u64 pixel_rate = 0; + u32 i, h, w; + + switch (cmd) { + case PREISP_CMD_SET_HDRAE_EXP: + ret = sc2310_set_hdrae(sc2310, arg); + break; + case RKMODULE_SET_HDR_CFG: + hdr_cfg = (struct rkmodule_hdr_cfg *)arg; + mode = sc2310->cur_mode; + if (sc2310->streaming) { + ret = sc2310_write_array(sc2310->client, sc2310->cur_mode->reg_list); + if (ret) + return ret; + } + w = mode->width; + h = mode->height; + for (i = 0; i < sc2310->cfg_num; i++) { + if (w == supported_modes[i].width && + h == supported_modes[i].height && + supported_modes[i].hdr_mode == hdr_cfg->hdr_mode) { + sc2310_change_mode(sc2310, &supported_modes[i]); + break; + } + } + if (i == sc2310->cfg_num) { + dev_err(&sc2310->client->dev, + "not find hdr mode:%d %dx%d config\n", + hdr_cfg->hdr_mode, w, h); + ret = -EINVAL; + } else { + w = mode->hts_def - mode->width; + h = mode->vts_def - mode->height; + __v4l2_ctrl_modify_range(sc2310->hblank, w, w, 1, w); + __v4l2_ctrl_modify_range(sc2310->vblank, h, + SC2310_VTS_MAX - mode->height, + 1, h); + __v4l2_ctrl_s_ctrl(sc2310->link_freq, mode->mipi_freq_idx); + pixel_rate = (u32)link_freq_items[mode->mipi_freq_idx] / + mode->bpp * 2 * SC2310_LANES; + __v4l2_ctrl_s_ctrl_int64(sc2310->pixel_rate, + pixel_rate); + dev_info(&sc2310->client->dev, + "sensor mode: %d\n", mode->hdr_mode); + } + break; + case RKMODULE_GET_MODULE_INFO: + sc2310_get_module_inf(sc2310, (struct rkmodule_inf *)arg); + break; + case RKMODULE_GET_HDR_CFG: + hdr_cfg = (struct rkmodule_hdr_cfg *)arg; + hdr_cfg->esp.mode = HDR_NORMAL_VC; + hdr_cfg->hdr_mode = sc2310->cur_mode->hdr_mode; + break; + default: + ret = -ENOIOCTLCMD; + break; + } + + return ret; +} + +#ifdef CONFIG_COMPAT +static long sc2310_compat_ioctl32(struct v4l2_subdev *sd, + unsigned int cmd, unsigned long arg) +{ + void __user *up = compat_ptr(arg); + struct rkmodule_inf *inf; + struct rkmodule_awb_cfg *cfg; + struct rkmodule_hdr_cfg *hdr; + struct preisp_hdrae_exp_s *hdrae; + long ret = 0; + u32 cg = 0; + + switch (cmd) { + case RKMODULE_GET_MODULE_INFO: + inf = kzalloc(sizeof(*inf), GFP_KERNEL); + if (!inf) { + ret = -ENOMEM; + return ret; + } + + ret = sc2310_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 = sc2310_ioctl(sd, cmd, cfg); + kfree(cfg); + break; + case RKMODULE_GET_HDR_CFG: + hdr = kzalloc(sizeof(*hdr), GFP_KERNEL); + if (!hdr) { + ret = -ENOMEM; + return ret; + } + + ret = sc2310_ioctl(sd, cmd, hdr); + if (!ret) + ret = copy_to_user(up, hdr, sizeof(*hdr)); + kfree(hdr); + break; + case RKMODULE_SET_HDR_CFG: + hdr = kzalloc(sizeof(*hdr), GFP_KERNEL); + if (!hdr) { + ret = -ENOMEM; + return ret; + } + + ret = copy_from_user(hdr, up, sizeof(*hdr)); + if (!ret) + ret = sc2310_ioctl(sd, cmd, hdr); + kfree(hdr); + break; + case PREISP_CMD_SET_HDRAE_EXP: + hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL); + if (!hdrae) { + ret = -ENOMEM; + return ret; + } + + ret = copy_from_user(hdrae, up, sizeof(*hdrae)); + if (!ret) + ret = sc2310_ioctl(sd, cmd, hdrae); + kfree(hdrae); + break; + case RKMODULE_SET_CONVERSION_GAIN: + ret = copy_from_user(&cg, up, sizeof(cg)); + if (!ret) + ret = sc2310_ioctl(sd, cmd, &cg); + break; + default: + ret = -ENOIOCTLCMD; + break; + } + + return ret; +} +#endif + +static int __sc2310_start_stream(struct sc2310 *sc2310) +{ + int ret; + + ret = sc2310_write_array(sc2310->client, sc2310->cur_mode->reg_list); + if (ret) + return ret; + + ret = __v4l2_ctrl_handler_setup(&sc2310->ctrl_handler); + if (ret) + return ret; + + /* In case these controls are set before streaming */ + if (sc2310->has_init_exp && sc2310->cur_mode->hdr_mode != NO_HDR) { + ret = sc2310_ioctl(&sc2310->subdev, PREISP_CMD_SET_HDRAE_EXP, + &sc2310->init_hdrae_exp); + if (ret) { + dev_err(&sc2310->client->dev, + "init exp fail in hdr mode\n"); + return ret; + } + } + + return sc2310_write_reg(sc2310->client, SC2310_REG_CTRL_MODE, + SC2310_REG_VALUE_08BIT, SC2310_MODE_STREAMING); +} + +static int __sc2310_stop_stream(struct sc2310 *sc2310) +{ + sc2310->has_init_exp = false; + return sc2310_write_reg(sc2310->client, SC2310_REG_CTRL_MODE, + SC2310_REG_VALUE_08BIT, SC2310_MODE_SW_STANDBY); +} + +static int sc2310_s_stream(struct v4l2_subdev *sd, int on) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + struct i2c_client *client = sc2310->client; + int ret = 0; + + mutex_lock(&sc2310->mutex); + on = !!on; + if (on == sc2310->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 = __sc2310_start_stream(sc2310); + if (ret) { + v4l2_err(sd, "start stream failed while write regs\n"); + pm_runtime_put(&client->dev); + goto unlock_and_return; + } + } else { + __sc2310_stop_stream(sc2310); + pm_runtime_put(&client->dev); + } + + sc2310->streaming = on; + +unlock_and_return: + mutex_unlock(&sc2310->mutex); + + return ret; +} + +static int sc2310_s_power(struct v4l2_subdev *sd, int on) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + struct i2c_client *client = sc2310->client; + int ret = 0; + + mutex_lock(&sc2310->mutex); + + /* If the power state is not modified - no work to do. */ + if (sc2310->power_on == !!on) + goto unlock_and_return; + + if (on) { + ret = pm_runtime_get_sync(&client->dev); + if (ret < 0) { + pm_runtime_put_noidle(&client->dev); + goto unlock_and_return; + } + + ret |= sc2310_write_reg(sc2310->client, + SC2310_SOFTWARE_RESET_REG, + SC2310_REG_VALUE_08BIT, + 0x01); + usleep_range(100, 200); + + sc2310->power_on = true; + } else { + pm_runtime_put(&client->dev); + sc2310->power_on = false; + } + +unlock_and_return: + mutex_unlock(&sc2310->mutex); + + return ret; +} + +static int __sc2310_power_on(struct sc2310 *sc2310) +{ + int ret; + struct device *dev = &sc2310->client->dev; + + if (!IS_ERR_OR_NULL(sc2310->pins_default)) { + ret = pinctrl_select_state(sc2310->pinctrl, + sc2310->pins_default); + if (ret < 0) + dev_err(dev, "could not set pins\n"); + } + ret = clk_set_rate(sc2310->xvclk, SC2310_XVCLK_FREQ); + if (ret < 0) + dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); + if (clk_get_rate(sc2310->xvclk) != SC2310_XVCLK_FREQ) + dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); + ret = clk_prepare_enable(sc2310->xvclk); + if (ret < 0) { + dev_err(dev, "Failed to enable xvclk\n"); + return ret; + } + if (!IS_ERR(sc2310->reset_gpio)) + gpiod_set_value_cansleep(sc2310->reset_gpio, 1); + + ret = regulator_bulk_enable(SC2310_NUM_SUPPLIES, sc2310->supplies); + if (ret < 0) { + dev_err(dev, "Failed to enable regulators\n"); + goto disable_clk; + } + + if (!IS_ERR(sc2310->reset_gpio)) + gpiod_set_value_cansleep(sc2310->reset_gpio, 0); + + usleep_range(500, 1000); + if (!IS_ERR(sc2310->pwdn_gpio)) + gpiod_set_value_cansleep(sc2310->pwdn_gpio, 0); + usleep_range(2000, 4000); + + return 0; + +disable_clk: + clk_disable_unprepare(sc2310->xvclk); + + return ret; +} + +static void __sc2310_power_off(struct sc2310 *sc2310) +{ + int ret; + struct device *dev = &sc2310->client->dev; + + if (!IS_ERR(sc2310->pwdn_gpio)) + gpiod_set_value_cansleep(sc2310->pwdn_gpio, 1); + clk_disable_unprepare(sc2310->xvclk); + if (!IS_ERR(sc2310->reset_gpio)) + gpiod_set_value_cansleep(sc2310->reset_gpio, 1); + if (!IS_ERR_OR_NULL(sc2310->pins_sleep)) { + ret = pinctrl_select_state(sc2310->pinctrl, + sc2310->pins_sleep); + if (ret < 0) + dev_dbg(dev, "could not set pins\n"); + } + regulator_bulk_disable(SC2310_NUM_SUPPLIES, sc2310->supplies); +} + +static int sc2310_runtime_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct sc2310 *sc2310 = to_sc2310(sd); + + return __sc2310_power_on(sc2310); +} + +static int sc2310_runtime_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct sc2310 *sc2310 = to_sc2310(sd); + + __sc2310_power_off(sc2310); + + return 0; +} + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static int sc2310_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + const struct sc2310_mode *def_mode = &supported_modes[0]; + + mutex_lock(&sc2310->mutex); + /* Initialize try_fmt */ + try_fmt->width = def_mode->width; + try_fmt->height = def_mode->height; + try_fmt->code = def_mode->bus_fmt; + try_fmt->field = V4L2_FIELD_NONE; + + mutex_unlock(&sc2310->mutex); + /* No crop or compose */ + + return 0; +} +#endif + +static int sc2310_enum_frame_interval(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_interval_enum *fie) +{ + struct sc2310 *sc2310 = to_sc2310(sd); + + if (fie->index >= sc2310->cfg_num) + return -EINVAL; + + fie->code = supported_modes[fie->index].bus_fmt; + fie->width = supported_modes[fie->index].width; + fie->height = supported_modes[fie->index].height; + fie->interval = supported_modes[fie->index].max_fps; + fie->reserved[0] = supported_modes[fie->index].hdr_mode; + return 0; +} + +static const struct dev_pm_ops sc2310_pm_ops = { + SET_RUNTIME_PM_OPS(sc2310_runtime_suspend, + sc2310_runtime_resume, NULL) +}; + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API +static const struct v4l2_subdev_internal_ops sc2310_internal_ops = { + .open = sc2310_open, +}; +#endif + +static const struct v4l2_subdev_core_ops sc2310_core_ops = { + .s_power = sc2310_s_power, + .ioctl = sc2310_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl32 = sc2310_compat_ioctl32, +#endif +}; + +static const struct v4l2_subdev_video_ops sc2310_video_ops = { + .s_stream = sc2310_s_stream, + .g_frame_interval = sc2310_g_frame_interval, + .g_mbus_config = sc2310_g_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops sc2310_pad_ops = { + .enum_mbus_code = sc2310_enum_mbus_code, + .enum_frame_size = sc2310_enum_frame_sizes, + .enum_frame_interval = sc2310_enum_frame_interval, + .get_fmt = sc2310_get_fmt, + .set_fmt = sc2310_set_fmt, +}; + +static const struct v4l2_subdev_ops sc2310_subdev_ops = { + .core = &sc2310_core_ops, /* v4l2_subdev_core_ops sc2310_core_ops */ + .video = &sc2310_video_ops, /* */ + .pad = &sc2310_pad_ops, /* */ +}; + +static int sc2310_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct sc2310 *sc2310 = container_of(ctrl->handler, + struct sc2310, ctrl_handler); + struct i2c_client *client = sc2310->client; + s64 max; + u32 again, again_fine, dgain, dgain_fine; + int ret = 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 = 2 * (sc2310->cur_mode->height + ctrl->val) - 6; + __v4l2_ctrl_modify_range(sc2310->exposure, + sc2310->exposure->minimum, max, + sc2310->exposure->step, + sc2310->exposure->default_value); + break; + } + + if (pm_runtime_get(&client->dev) <= 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + if (sc2310->cur_mode->hdr_mode != NO_HDR) + return ret; + ctrl->val = ctrl->val << 1; + ret = sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_L, + SC2310_REG_VALUE_08BIT, + (ctrl->val << 4 & 0XF0)); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_M, + SC2310_REG_VALUE_08BIT, + (ctrl->val >> 4 & 0XFF)); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_EXP_LONG_H, + SC2310_REG_VALUE_08BIT, + (ctrl->val >> 12 & 0X0F)); + dev_dbg(&client->dev, "set exposure 0x%x\n", ctrl->val); + break; + + case V4L2_CID_ANALOGUE_GAIN: + if (sc2310->cur_mode->hdr_mode != NO_HDR) + return ret; + sc2310_get_gain_reg(ctrl->val, &again, &again_fine, &dgain, &dgain_fine); + dev_dbg(&client->dev, "recv:%d set again 0x%x, again_fine 0x%x, set dgain 0x%x, dgain_fine 0x%x\n", + ctrl->val, again, again_fine, dgain, dgain_fine); + ret = sc2310_write_reg(sc2310->client, + SC2310_GROUP_UPDATE_ADDRESS, + SC2310_REG_VALUE_08BIT, + SC2310_GROUP_UPDATE_START_DATA); + + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_AGAIN, + SC2310_REG_VALUE_08BIT, + again); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_AGAIN_FINE, + SC2310_REG_VALUE_08BIT, + again_fine); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_DGAIN, + SC2310_REG_VALUE_08BIT, + dgain); + ret |= sc2310_write_reg(sc2310->client, + SC2310_REG_DGAIN_FINE, + SC2310_REG_VALUE_08BIT, + dgain_fine); + ret |= sc2310_write_reg(sc2310->client, + SC2310_GROUP_UPDATE_ADDRESS, + SC2310_REG_VALUE_08BIT, + SC2310_GROUP_UPDATE_LAUNCH); + break; + case V4L2_CID_VBLANK: + ret = sc2310_write_reg(sc2310->client, SC2310_REG_VTS, + SC2310_REG_VALUE_16BIT, + ctrl->val + sc2310->cur_mode->height); + dev_dbg(&client->dev, "set vblank 0x%x\n", + ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = sc2310_enable_test_pattern(sc2310, ctrl->val); + 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 sc2310_ctrl_ops = { + .s_ctrl = sc2310_set_ctrl, +}; + +static int sc2310_initialize_controls(struct sc2310 *sc2310) +{ + const struct sc2310_mode *mode; + struct v4l2_ctrl_handler *handler; + s64 exposure_max, vblank_def; + u32 h_blank; + int ret; + u64 pixel_rate = 0; + + handler = &sc2310->ctrl_handler; + mode = sc2310->cur_mode; + ret = v4l2_ctrl_handler_init(handler, 8); + if (ret) + return ret; + handler->lock = &sc2310->mutex; + + sc2310->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(link_freq_items) - 1, 0, + link_freq_items); + __v4l2_ctrl_s_ctrl(sc2310->link_freq, mode->mipi_freq_idx); + + /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ + pixel_rate = (u32)link_freq_items[mode->mipi_freq_idx] / mode->bpp * 2 * SC2310_LANES; + sc2310->pixel_rate = v4l2_ctrl_new_std(handler, NULL, + V4L2_CID_PIXEL_RATE, 0, SC2310_MAX_PIXEL_RATE, + 1, pixel_rate); + + h_blank = mode->hts_def - mode->width; + sc2310->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, + h_blank, h_blank, 1, h_blank); + if (sc2310->hblank) + sc2310->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + vblank_def = mode->vts_def - mode->height; + sc2310->vblank = v4l2_ctrl_new_std(handler, &sc2310_ctrl_ops, + V4L2_CID_VBLANK, vblank_def, + SC2310_VTS_MAX - mode->height, + 1, vblank_def); + + exposure_max = 2 * (mode->vts_def) - 6; + sc2310->exposure = v4l2_ctrl_new_std(handler, &sc2310_ctrl_ops, + V4L2_CID_EXPOSURE, SC2310_EXPOSURE_MIN, + exposure_max, SC2310_EXPOSURE_STEP, + mode->exp_def); + + sc2310->anal_gain = v4l2_ctrl_new_std(handler, &sc2310_ctrl_ops, + V4L2_CID_ANALOGUE_GAIN, SC2310_GAIN_MIN, + SC2310_GAIN_MAX, SC2310_GAIN_STEP, + SC2310_GAIN_DEFAULT); + + sc2310->test_pattern = v4l2_ctrl_new_std_menu_items(handler, + &sc2310_ctrl_ops, V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(sc2310_test_pattern_menu) - 1, + 0, 0, sc2310_test_pattern_menu); + + if (handler->error) { + ret = handler->error; + dev_err(&sc2310->client->dev, + "Failed to init controls(%d)\n", ret); + goto err_free_handler; + } + + sc2310->subdev.ctrl_handler = handler; + sc2310->has_init_exp = false; + + return 0; + +err_free_handler: + v4l2_ctrl_handler_free(handler); + + return ret; +} + +static int sc2310_check_sensor_id(struct sc2310 *sc2310, + struct i2c_client *client) +{ + struct device *dev = &sc2310->client->dev; + u32 id = 0; + int ret; + + ret = sc2310_read_reg(client, SC2310_REG_CHIP_ID, + SC2310_REG_VALUE_16BIT, &id); + if (id != CHIP_ID) { + dev_err(dev, "Unexpected sensor id(%04x), ret(%d)\n", id, ret); + return -ENODEV; + } + + dev_info(dev, "Detected SC%04x sensor\n", CHIP_ID); + + return 0; +} + +static int sc2310_configure_regulators(struct sc2310 *sc2310) +{ + unsigned int i; + + for (i = 0; i < SC2310_NUM_SUPPLIES; i++) + sc2310->supplies[i].supply = sc2310_supply_names[i]; + + return devm_regulator_bulk_get(&sc2310->client->dev, + SC2310_NUM_SUPPLIES, + sc2310->supplies); +} + +static int sc2310_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct device_node *node = dev->of_node; + struct sc2310 *sc2310; + struct v4l2_subdev *sd; + char facing[2]; + int ret; + u32 i, hdr_mode = 0; + + dev_info(dev, "driver version: %02x.%02x.%02x", + DRIVER_VERSION >> 16, + (DRIVER_VERSION & 0xff00) >> 8, + DRIVER_VERSION & 0x00ff); + + sc2310 = devm_kzalloc(dev, sizeof(*sc2310), GFP_KERNEL); + if (!sc2310) + return -ENOMEM; + + ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, + &sc2310->module_index); + ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, + &sc2310->module_facing); + ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, + &sc2310->module_name); + ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, + &sc2310->len_name); + if (ret) { + dev_err(dev, "could not get module information!\n"); + return -EINVAL; + } + + ret = of_property_read_u32(node, OF_CAMERA_HDR_MODE, + &hdr_mode); + + if (ret) { + hdr_mode = NO_HDR; + dev_warn(dev, " Get hdr mode failed! no hdr default\n"); + } + + sc2310->cfg_num = ARRAY_SIZE(supported_modes); + for (i = 0; i < sc2310->cfg_num; i++) { + if (hdr_mode == supported_modes[i].hdr_mode) { + sc2310->cur_mode = &supported_modes[i]; + break; + } + } + sc2310->client = client; + + sc2310->xvclk = devm_clk_get(dev, "xvclk"); + if (IS_ERR(sc2310->xvclk)) { + dev_err(dev, "Failed to get xvclk\n"); + return -EINVAL; + } + + sc2310->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(sc2310->reset_gpio)) + dev_warn(dev, "Failed to get reset-gpios\n"); + + sc2310->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); + if (IS_ERR(sc2310->pwdn_gpio)) + dev_warn(dev, "Failed to get pwdn-gpios\n"); + + sc2310->pinctrl = devm_pinctrl_get(dev); + if (!IS_ERR(sc2310->pinctrl)) { + sc2310->pins_default = + pinctrl_lookup_state(sc2310->pinctrl, + OF_CAMERA_PINCTRL_STATE_DEFAULT); + if (IS_ERR(sc2310->pins_default)) + dev_err(dev, "could not get default pinstate\n"); + + sc2310->pins_sleep = + pinctrl_lookup_state(sc2310->pinctrl, + OF_CAMERA_PINCTRL_STATE_SLEEP); + if (IS_ERR(sc2310->pins_sleep)) + dev_err(dev, "could not get sleep pinstate\n"); + } else { + dev_err(dev, "no pinctrl\n"); + } + + ret = sc2310_configure_regulators(sc2310); + if (ret) { + dev_err(dev, "Failed to get power regulators\n"); + return ret; + } + + mutex_init(&sc2310->mutex); + + sd = &sc2310->subdev; + v4l2_i2c_subdev_init(sd, client, &sc2310_subdev_ops); + ret = sc2310_initialize_controls(sc2310); + if (ret) + goto err_destroy_mutex; + + ret = __sc2310_power_on(sc2310); + if (ret) + goto err_free_handler; + + ret = sc2310_check_sensor_id(sc2310, client); + if (ret) + goto err_power_off; + +#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API + sd->internal_ops = &sc2310_internal_ops; + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; +#endif +#if defined(CONFIG_MEDIA_CONTROLLER) + sc2310->pad.flags = MEDIA_PAD_FL_SOURCE; + sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; + ret = media_entity_pads_init(&sd->entity, 1, &sc2310->pad); + if (ret < 0) + goto err_power_off; +#endif + + memset(facing, 0, sizeof(facing)); + if (strcmp(sc2310->module_facing, "back") == 0) + facing[0] = 'b'; + else + facing[0] = 'f'; + + snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", + sc2310->module_index, facing, + SC2310_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); +#ifdef USED_SYS_DEBUG + add_sysfs_interfaces(dev); +#endif + return 0; + +err_clean_entity: +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif +err_power_off: + __sc2310_power_off(sc2310); +err_free_handler: + v4l2_ctrl_handler_free(&sc2310->ctrl_handler); +err_destroy_mutex: + mutex_destroy(&sc2310->mutex); + + return ret; +} + +static int sc2310_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct sc2310 *sc2310 = to_sc2310(sd); + + v4l2_async_unregister_subdev(sd); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + v4l2_ctrl_handler_free(&sc2310->ctrl_handler); + mutex_destroy(&sc2310->mutex); + + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + __sc2310_power_off(sc2310); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id sc2310_of_match[] = { + { .compatible = "smartsens,sc2310" }, + { }, +}; +MODULE_DEVICE_TABLE(of, sc2310_of_match); +#endif + +static const struct i2c_device_id sc2310_match_id[] = { + { "smartsens,sc2310", 0 }, + { }, +}; + +static struct i2c_driver sc2310_i2c_driver = { + .driver = { + .name = SC2310_NAME, + .pm = &sc2310_pm_ops, + .of_match_table = of_match_ptr(sc2310_of_match), + }, + .probe = &sc2310_probe, + .remove = &sc2310_remove, + .id_table = sc2310_match_id, +}; + +#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT +module_i2c_driver(sc2310_i2c_driver); +#else +static int __init sensor_mod_init(void) +{ + return i2c_add_driver(&sc2310_i2c_driver); +} + +static void __exit sensor_mod_exit(void) +{ + i2c_del_driver(&sc2310_i2c_driver); +} + +device_initcall_sync(sensor_mod_init); +module_exit(sensor_mod_exit); +#endif + +MODULE_DESCRIPTION("Smartsens sc2310 sensor driver"); +MODULE_LICENSE("GPL v2");