// SPDX-License-Identifier: GPL-2.0
/*
* imx214 camera driver
*
* Copyright (C) 2022 Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 first version.
* V0.0X01.0X01 fix compile errors.
* V0.0X01.0X02 add 4lane mode support.
*
*/
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mediabus.h>
#include <linux/pinctrl/consumer.h>
#include <linux/rk-preisp.h>
#include <linux/of_graph.h>
#include "imx214_eeprom_head.h"
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x02)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define IMX214_LINK_FREQ_600MHZ 600000000U
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
#define IMX214_PIXEL_RATE (IMX214_LINK_FREQ_600MHZ * 2LL * 4LL / 10LL)
#define IMX214_XVCLK_FREQ 24000000
#define CHIP_ID 0x0214
#define IMX214_REG_CHIP_ID 0x0016
#define IMX214_REG_CTRL_MODE 0x0100
#define IMX214_MODE_SW_STANDBY 0x0
#define IMX214_MODE_STREAMING BIT(0)
#define IMX214_REG_EXPOSURE 0x0202
#define IMX214_EXPOSURE_MIN 4
#define IMX214_EXPOSURE_STEP 1
#define IMX214_VTS_MAX 0xffff
#define IMX214_REG_GAIN_H 0x0204
#define IMX214_REG_GAIN_L 0x0205
#define IMX214_GAIN_MIN 0x200
#define IMX214_GAIN_MAX 0x1fff
#define IMX214_GAIN_STEP 0x200
#define IMX214_GAIN_DEFAULT 0x800
#define IMX214_REG_TEST_PATTERN 0x5e00
#define IMX214_TEST_PATTERN_ENABLE 0x80
#define IMX214_TEST_PATTERN_DISABLE 0x0
#define IMX214_REG_VTS 0x0340
#define REG_NULL 0xFFFF
#define IMX214_REG_VALUE_08BIT 1
#define IMX214_REG_VALUE_16BIT 2
#define IMX214_REG_VALUE_24BIT 3
#define IMX214_BITS_PER_SAMPLE 10
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define IMX214_NAME "imx214"
#define IMX214_MEDIA_BUS_FMT MEDIA_BUS_FMT_SBGGR10_1X10
/* OTP MACRO */
#define MODULE_BKX 0X01
#define MODULE_TYPE MODULE_BKX
#if MODULE_TYPE == MODULE_BKX
#define RG_Ratio_Typical_Default (0x026e)
#define BG_Ratio_Typical_Default (0x0280)
#else
#define RG_Ratio_Typical_Default (0x16f)
#define BG_Ratio_Typical_Default (0x16f)
#endif
static const char * const imx214_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
#define IMX214_NUM_SUPPLIES ARRAY_SIZE(imx214_supply_names)
struct regval {
u16 addr;
u8 val;
};
struct imx214_mode {
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
u32 link_freq_idx;
u32 bpp;
const struct regval *reg_list;
};
struct imx214 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *power_gpio;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[IMX214_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 *pixel_rate;
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *test_pattern;
struct mutex mutex;
struct v4l2_fwnode_endpoint bus_cfg;
bool streaming;
bool power_on;
const struct imx214_mode *support_modes;
const struct imx214_mode *cur_mode;
u32 module_index;
u32 cfg_num;
const char *module_facing;
const char *module_name;
const char *len_name;
struct imx214_otp_info *otp;
struct rkmodule_inf module_inf;
struct rkmodule_awb_cfg awb_cfg;
struct rkmodule_lsc_cfg lsc_cfg;
};
#define to_imx214(sd) container_of(sd, struct imx214, subdev)
struct imx214_id_name {
u32 id;
char name[RKMODULE_NAME_LEN];
};
static const struct imx214_id_name imx214_module_info[] = {
{0x36, "GuangDongLiteArray"},
{0x0d, "CameraKing"},
{0x00, "Unknown"}
};
static const struct imx214_id_name imx214_lens_info[] = {
{0x47, "Sunny 3923C"},
{0x07, "Largen 9611A6"},
{0x00, "Unknown"}
};
/*
* Xclk 24Mhz
*/
static const struct regval imx214_global_regs[] = {
{0x0136, 0x18},
{0x0137, 0x00},
{0x0101, 0x00},
{0x0105, 0x01},
{0x0106, 0x01},
{0x4550, 0x02},
{0x4601, 0x04},
{0x4642, 0x01},
{0x6227, 0x11},
{0x6276, 0x00},
{0x900E, 0x06},
{0xA802, 0x90},
{0xA803, 0x11},
{0xA804, 0x62},
{0xA805, 0x77},
{0xA806, 0xAE},
{0xA807, 0x34},
{0xA808, 0xAE},
{0xA809, 0x35},
{0xA80A, 0x62},
{0xA80B, 0x83},
{0xAE33, 0x00},
{0x4174, 0x00},
{0x4175, 0x11},
{0x4612, 0x29},
{0x461B, 0x2C},
{0x461F, 0x06},
{0x4635, 0x07},
{0x4637, 0x30},
{0x463F, 0x18},
{0x4641, 0x0D},
{0x465B, 0x2C},
{0x465F, 0x2B},
{0x4663, 0x2B},
{0x4667, 0x24},
{0x466F, 0x24},
{0x470E, 0x09},
{0x4909, 0xAB},
{0x490B, 0x95},
{0x4915, 0x5D},
{0x4A5F, 0xFF},
{0x4A61, 0xFF},
{0x4A73, 0x62},
{0x4A85, 0x00},
{0x4A87, 0xFF},
{0x583C, 0x04},
{0x620E, 0x04},
{0x6EB2, 0x01},
{0x6EB3, 0x00},
{0x9300, 0x02},
{REG_NULL, 0x00},
};
static const struct regval imx214_2104x1560_30fps_regs_2lane[] = {
{0x0114, 0x01},
{0x0220, 0x00},
{0x0221, 0x11},
{0x0222, 0x01},
{0x0340, 0x06},
{0x0341, 0x40},
{0x0342, 0x13},
{0x0343, 0x90},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x10},
{0x0349, 0x6F},
{0x034A, 0x0C},
{0x034B, 0x2F},
{0x0381, 0x01},
{0x0383, 0x01},
{0x0385, 0x01},
{0x0387, 0x01},
{0x0900, 0x01},
{0x0901, 0x22},
{0x0902, 0x02},
{0x3000, 0x35},
{0x3054, 0x01},
{0x305C, 0x11},
{0x0112, 0x0A},
{0x0113, 0x0A},
{0x034C, 0x08},
{0x034D, 0x38},
{0x034E, 0x06},
{0x034F, 0x18},
{0x0401, 0x00},
{0x0404, 0x00},
{0x0405, 0x10},
{0x0408, 0x00},
{0x0409, 0x00},
{0x040A, 0x00},
{0x040B, 0x00},
{0x040C, 0x08},
{0x040D, 0x38},
{0x040E, 0x06},
{0x040F, 0x18},
{0x0301, 0x05},
{0x0303, 0x04},
{0x0305, 0x03},
{0x0306, 0x00},
{0x0307, 0x96},
{0x0309, 0x0A},
{0x030B, 0x01},
{0x0310, 0x00},
{0x0820, 0x09},
{0x0821, 0x60},
{0x0822, 0x00},
{0x0823, 0x00},
{0x3A03, 0x06},
{0x3A04, 0x68},
{0x3A05, 0x01},
{0x0B06, 0x01},
{0x30A2, 0x00},
{0x30B4, 0x00},
{0x3A02, 0xFF},
{0x3011, 0x00},
{0x3013, 0x01},
{0x4170, 0x00},
{0x4171, 0x10},
{0x4176, 0x00},
{0x4177, 0x3C},
{0xAE20, 0x04},
{0xAE21, 0x5C},
{0x0100, 0x00},
{REG_NULL, 0x00},
};
static const struct regval imx214_4208x3120_15fps_regs_2lane[] = {
{0x0114, 0x01},
{0x0220, 0x00},
{0x0221, 0x11},
{0x0222, 0x01},
{0x0340, 0x0C},
{0x0341, 0x58},
{0x0342, 0x13},
{0x0343, 0x90},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x10},
{0x0349, 0x6F},
{0x034A, 0x0C},
{0x034B, 0x2F},
{0x0381, 0x01},
{0x0383, 0x01},
{0x0385, 0x01},
{0x0387, 0x01},
{0x0900, 0x00},
{0x0901, 0x00},
{0x0902, 0x00},
{0x3000, 0x35},
{0x3054, 0x01},
{0x305C, 0x11},
{0x0112, 0x0A},
{0x0113, 0x0A},
{0x034C, 0x10},
{0x034D, 0x70},
{0x034E, 0x0C},
{0x034F, 0x30},
{0x0401, 0x00},
{0x0404, 0x00},
{0x0405, 0x10},
{0x0408, 0x00},
{0x0409, 0x00},
{0x040A, 0x00},
{0x040B, 0x00},
{0x040C, 0x10},
{0x040D, 0x70},
{0x040E, 0x0C},
{0x040F, 0x30},
{0x0301, 0x05},
{0x0303, 0x04},
{0x0305, 0x03},
{0x0306, 0x00},
{0x0307, 0x96},
{0x0309, 0x0A},
{0x030B, 0x01},
{0x0310, 0x00},
{0x0820, 0x09},
{0x0821, 0x60},
{0x0822, 0x00},
{0x0823, 0x00},
{0x3A03, 0x08},
{0x3A04, 0x70},
{0x3A05, 0x02},
{0x0B06, 0x01},
{0x30A2, 0x00},
{0x30B4, 0x00},
{0x3A02, 0xFF},
{0x3011, 0x00},
{0x3013, 0x01},
{0x4170, 0x00},
{0x4171, 0x10},
{0x4176, 0x00},
{0x4177, 0x3C},
{0xAE20, 0x04},
{0xAE21, 0x5C},
{0x0100, 0x00},
{REG_NULL, 0x00},
};
static const struct regval imx214_2104x1560_30fps_regs_4lane[] = {
{0x0114, 0x03},
{0x0220, 0x00},
{0x0221, 0x11},
{0x0222, 0x01},
{0x0340, 0x08},
{0x0341, 0x3E},
{0x0342, 0x13},
{0x0343, 0x90},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x10},
{0x0349, 0x6F},
{0x034A, 0x0C},
{0x034B, 0x2F},
{0x0381, 0x01},
{0x0383, 0x01},
{0x0385, 0x01},
{0x0387, 0x01},
{0x0900, 0x01},
{0x0901, 0x22},
{0x0902, 0x02},
{0x3000, 0x35},
{0x3054, 0x01},
{0x305C, 0x11},
{0x0112, 0x0A},
{0x0113, 0x0A},
{0x034C, 0x08},
{0x034D, 0x38},
{0x034E, 0x06},
{0x034F, 0x18},
{0x0401, 0x00},
{0x0404, 0x00},
{0x0405, 0x10},
{0x0408, 0x00},
{0x0409, 0x00},
{0x040A, 0x00},
{0x040B, 0x00},
{0x040C, 0x08},
{0x040D, 0x38},
{0x040E, 0x06},
{0x040F, 0x18},
{0x0301, 0x05},
{0x0303, 0x02},
{0x0305, 0x03},
{0x0306, 0x00},
{0x0307, 0x64},
{0x0309, 0x0A},
{0x030B, 0x01},
{0x0310, 0x00},
{0x0820, 0x0C},
{0x0821, 0x80},
{0x0822, 0x00},
{0x0823, 0x00},
{0x3A03, 0x06},
{0x3A04, 0x68},
{0x3A05, 0x01},
{0x0B06, 0x01},
{0x30A2, 0x00},
{0x30B4, 0x00},
{0x3A02, 0xFF},
{0x3011, 0x00},
{0x3013, 0x00},
{0x0202, 0x08},
{0x0203, 0x34},
{0x0224, 0x01},
{0x0225, 0xF4},
{0x0204, 0x00},
{0x0205, 0x00},
{0x020E, 0x01},
{0x020F, 0x00},
{0x0210, 0x01},
{0x0211, 0x00},
{0x0212, 0x01},
{0x0213, 0x00},
{0x0214, 0x01},
{0x0215, 0x00},
{0x0216, 0x00},
{0x0217, 0x00},
{0x4170, 0x00},
{0x4171, 0x10},
{0x4176, 0x00},
{0x4177, 0x3C},
{0xAE20, 0x04},
{0xAE21, 0x5C},
{0x0138, 0x01},
{0x0100, 0x00},
{REG_NULL, 0x00},
};
static const struct regval imx214_4208x3120_30fps_regs_4lane[] = {
{0x0114, 0x03},
{0x0220, 0x00},
{0x0221, 0x11},
{0x0222, 0x01},
{0x0340, 0x0C},
{0x0341, 0x58},
{0x0342, 0x13},
{0x0343, 0x90},
{0x0344, 0x00},
{0x0345, 0x00},
{0x0346, 0x00},
{0x0347, 0x00},
{0x0348, 0x10},
{0x0349, 0x6F},
{0x034A, 0x0C},
{0x034B, 0x2F},
{0x0381, 0x01},
{0x0383, 0x01},
{0x0385, 0x01},
{0x0387, 0x01},
{0x0900, 0x00},
{0x0901, 0x00},
{0x0902, 0x00},
{0x3000, 0x35},
{0x3054, 0x01},
{0x305C, 0x11},
{0x0112, 0x0A},
{0x0113, 0x0A},
{0x034C, 0x10},
{0x034D, 0x70},
{0x034E, 0x0C},
{0x034F, 0x30},
{0x0401, 0x00},
{0x0404, 0x00},
{0x0405, 0x10},
{0x0408, 0x00},
{0x0409, 0x00},
{0x040A, 0x00},
{0x040B, 0x00},
{0x040C, 0x10},
{0x040D, 0x70},
{0x040E, 0x0C},
{0x040F, 0x30},
{0x0301, 0x05},
{0x0303, 0x02},
{0x0305, 0x03},
{0x0306, 0x00},
{0x0307, 0x96},
{0x0309, 0x0A},
{0x030B, 0x01},
{0x0310, 0x00},
{0x0820, 0x12},
{0x0821, 0xC0},
{0x0822, 0x00},
{0x0823, 0x00},
{0x3A03, 0x09},
{0x3A04, 0x20},
{0x3A05, 0x01},
{0x0B06, 0x01},
{0x30A2, 0x00},
{0x30B4, 0x00},
{0x3A02, 0xFF},
{0x3011, 0x00},
{0x3013, 0x01},
{0x0202, 0x0C},
{0x0203, 0x4E},
{0x0224, 0x01},
{0x0225, 0xF4},
{0x0204, 0x00},
{0x0205, 0x00},
{0x020E, 0x01},
{0x020F, 0x00},
{0x0210, 0x01},
{0x0211, 0x00},
{0x0212, 0x01},
{0x0213, 0x00},
{0x0214, 0x01},
{0x0215, 0x00},
{0x0216, 0x00},
{0x0217, 0x00},
{0x4170, 0x00},
{0x4171, 0x10},
{0x4176, 0x00},
{0x4177, 0x3C},
{0xAE20, 0x04},
{0xAE21, 0x5C},
{0x0100, 0x00},
{REG_NULL, 0x00},
};
static const struct imx214_mode supported_modes_2lane[] = {
{
.width = 4208,
.height = 3120,
.max_fps = {
.numerator = 10000,
.denominator = 150000,
},
.exp_def = 0x0c70,
.hts_def = 0x1390,
.vts_def = 0x0c7a,
.bpp = 10,
.reg_list = imx214_4208x3120_15fps_regs_2lane,
.link_freq_idx = 0,
},
{
.width = 2104,
.height = 1560,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0630,
.hts_def = 0x1390,
.vts_def = 0x0640,
.bpp = 10,
.reg_list = imx214_2104x1560_30fps_regs_2lane,
.link_freq_idx = 0,
},
};
static const struct imx214_mode supported_modes_4lane[] = {
{
.width = 4208,
.height = 3120,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0c50,
.hts_def = 0x1390,
.vts_def = 0x0c58,
.bpp = 10,
.reg_list = imx214_4208x3120_30fps_regs_4lane,
.link_freq_idx = 0,
},
{
.width = 2104,
.height = 1560,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x083a,
.hts_def = 0x1390,
.vts_def = 0x083E,
.bpp = 10,
.reg_list = imx214_2104x1560_30fps_regs_4lane,
.link_freq_idx = 0,
},
};
static const s64 link_freq_items[] = {
IMX214_LINK_FREQ_600MHZ,
};
static const char * const imx214_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 imx214_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;
dev_dbg(&client->dev, "write reg(0x%x val:0x%x)!\n", reg, val);
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 imx214_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 = imx214_write_reg(client, regs[i].addr,
IMX214_REG_VALUE_08BIT,
regs[i].val);
return ret;
}
/* Read registers up to 4 at a time */
static int imx214_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 imx214_get_reso_dist(const struct imx214_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct imx214_mode *
imx214_find_best_fit(struct imx214 *imx214, 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 < imx214->cfg_num; i++) {
dist = imx214_get_reso_dist(&imx214->support_modes[i], framefmt);
if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &imx214->support_modes[cur_best_fit];
}
static int imx214_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx214 *imx214 = to_imx214(sd);
const struct imx214_mode *mode;
s64 h_blank, vblank_def;
u64 pixel_rate = 0;
u32 lane_num = imx214->bus_cfg.bus.mipi_csi2.num_data_lanes;
mutex_lock(&imx214->mutex);
mode = imx214_find_best_fit(imx214, fmt);
fmt->format.code = IMX214_MEDIA_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(&imx214->mutex);
return -ENOTTY;
#endif
} else {
imx214->cur_mode = mode;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(imx214->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(imx214->vblank, vblank_def,
IMX214_VTS_MAX - mode->height,
1, vblank_def);
pixel_rate = (u32)link_freq_items[mode->link_freq_idx] / mode->bpp * 2 * lane_num;
__v4l2_ctrl_s_ctrl_int64(imx214->pixel_rate,
pixel_rate);
__v4l2_ctrl_s_ctrl(imx214->link_freq,
mode->link_freq_idx);
}
mutex_unlock(&imx214->mutex);
return 0;
}
static int imx214_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx214 *imx214 = to_imx214(sd);
const struct imx214_mode *mode = imx214->cur_mode;
mutex_lock(&imx214->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(&imx214->mutex);
return -ENOTTY;
#endif
} else {
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = IMX214_MEDIA_BUS_FMT;
fmt->format.field = V4L2_FIELD_NONE;
}
mutex_unlock(&imx214->mutex);
return 0;
}
static int imx214_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 = IMX214_MEDIA_BUS_FMT;
return 0;
}
static int imx214_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct imx214 *imx214 = to_imx214(sd);
if (fse->index >= imx214->cfg_num)
return -EINVAL;
if (fse->code != IMX214_MEDIA_BUS_FMT)
return -EINVAL;
fse->min_width = imx214->support_modes[fse->index].width;
fse->max_width = imx214->support_modes[fse->index].width;
fse->max_height = imx214->support_modes[fse->index].height;
fse->min_height = imx214->support_modes[fse->index].height;
return 0;
}
static int imx214_enable_test_pattern(struct imx214 *imx214, u32 pattern)
{
u32 val;
if (pattern)
val = (pattern - 1) | IMX214_TEST_PATTERN_ENABLE;
else
val = IMX214_TEST_PATTERN_DISABLE;
return imx214_write_reg(imx214->client,
IMX214_REG_TEST_PATTERN,
IMX214_REG_VALUE_08BIT,
val);
}
static int imx214_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct imx214 *imx214 = to_imx214(sd);
const struct imx214_mode *mode = imx214->cur_mode;
mutex_lock(&imx214->mutex);
fi->interval = mode->max_fps;
mutex_unlock(&imx214->mutex);
return 0;
}
static void imx214_get_otp(struct imx214_otp_info *otp,
struct rkmodule_inf *inf)
{
u32 i;
/* fac */
if (otp->flag & 0x80) {
inf->fac.flag = 1;
inf->fac.year = otp->year;
inf->fac.month = otp->month;
inf->fac.day = otp->day;
for (i = 0; i < ARRAY_SIZE(imx214_module_info) - 1; i++) {
if (imx214_module_info[i].id == otp->module_id)
break;
}
strscpy(inf->fac.module, imx214_module_info[i].name,
sizeof(inf->fac.module));
for (i = 0; i < ARRAY_SIZE(imx214_lens_info) - 1; i++) {
if (imx214_lens_info[i].id == otp->lens_id)
break;
}
strscpy(inf->fac.lens, imx214_lens_info[i].name,
sizeof(inf->fac.lens));
}
/* awb */
if (otp->flag & 0x40) {
inf->awb.flag = 1;
inf->awb.r_value = otp->rg_ratio;
inf->awb.b_value = otp->bg_ratio;
inf->awb.gr_value = 0x400;
inf->awb.gb_value = 0x400;
inf->awb.golden_r_value = 0;
inf->awb.golden_b_value = 0;
inf->awb.golden_gr_value = 0;
inf->awb.golden_gb_value = 0;
}
/* af */
if (otp->flag & 0x20) {
inf->af.flag = 1;
inf->af.af_otp[0].vcm_start = otp->vcm_start;
inf->af.af_otp[0].vcm_end = otp->vcm_end;
inf->af.af_otp[0].vcm_dir = otp->vcm_dir;
}
/* lsc */
if (otp->flag & 0x10) {
inf->lsc.flag = 1;
inf->lsc.decimal_bits = 0;
inf->lsc.lsc_w = 9;
inf->lsc.lsc_h = 14;
for (i = 0; i < 126; i++) {
inf->lsc.lsc_r[i] = otp->lenc[i];
inf->lsc.lsc_gr[i] = otp->lenc[i + 126];
inf->lsc.lsc_gb[i] = otp->lenc[i + 252];
inf->lsc.lsc_b[i] = otp->lenc[i + 378];
}
}
}
static void imx214_get_module_inf(struct imx214 *imx214,
struct rkmodule_inf *inf)
{
struct imx214_otp_info *otp = imx214->otp;
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, IMX214_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, imx214->module_name,
sizeof(inf->base.module));
strscpy(inf->base.lens, imx214->len_name, sizeof(inf->base.lens));
if (otp)
imx214_get_otp(otp, inf);
}
static void imx214_set_awb_cfg(struct imx214 *imx214,
struct rkmodule_awb_cfg *cfg)
{
mutex_lock(&imx214->mutex);
memcpy(&imx214->awb_cfg, cfg, sizeof(*cfg));
mutex_unlock(&imx214->mutex);
}
static void imx214_set_lsc_cfg(struct imx214 *imx214,
struct rkmodule_lsc_cfg *cfg)
{
mutex_lock(&imx214->mutex);
memcpy(&imx214->lsc_cfg, cfg, sizeof(*cfg));
mutex_unlock(&imx214->mutex);
}
static long imx214_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct imx214 *imx214 = to_imx214(sd);
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
imx214_get_module_inf(imx214, (struct rkmodule_inf *)arg);
break;
case RKMODULE_AWB_CFG:
imx214_set_awb_cfg(imx214, (struct rkmodule_awb_cfg *)arg);
break;
case RKMODULE_LSC_CFG:
imx214_set_lsc_cfg(imx214, (struct rkmodule_lsc_cfg *)arg);
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = imx214_write_reg(imx214->client,
IMX214_REG_CTRL_MODE,
IMX214_REG_VALUE_08BIT,
IMX214_MODE_STREAMING);
else
ret = imx214_write_reg(imx214->client,
IMX214_REG_CTRL_MODE,
IMX214_REG_VALUE_08BIT,
IMX214_MODE_SW_STANDBY);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long imx214_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_lsc_cfg *lsc_cfg;
long ret = 0;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = imx214_ioctl(sd, cmd, inf);
if (!ret) {
ret = copy_to_user(up, inf, sizeof(*inf));
if (ret)
ret = -EFAULT;
}
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 = imx214_ioctl(sd, cmd, cfg);
else
ret = -EFAULT;
kfree(cfg);
break;
case RKMODULE_LSC_CFG:
lsc_cfg = kzalloc(sizeof(*lsc_cfg), GFP_KERNEL);
if (!lsc_cfg) {
ret = -ENOMEM;
return ret;
}
ret = copy_from_user(lsc_cfg, up, sizeof(*lsc_cfg));
if (!ret)
ret = imx214_ioctl(sd, cmd, lsc_cfg);
else
ret = -EFAULT;
kfree(lsc_cfg);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = imx214_ioctl(sd, cmd, &stream);
else
ret = -EFAULT;
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int imx214_apply_otp(struct imx214 *imx214)
{
int R_gain, G_gain, B_gain, base_gain;
struct i2c_client *client = imx214->client;
struct imx214_otp_info *otp_ptr = imx214->otp;
struct rkmodule_awb_cfg *awb_cfg = &imx214->awb_cfg;
struct rkmodule_lsc_cfg *lsc_cfg = &imx214->lsc_cfg;
u32 golden_bg_ratio = 0;
u32 golden_rg_ratio = 0;
u32 golden_g_value = 0;
u32 bg_ratio;
u32 rg_ratio;
//u32 g_value;
u32 i;
if (!otp_ptr)
return 0;
if (awb_cfg->enable) {
golden_g_value = (awb_cfg->golden_gb_value +
awb_cfg->golden_gr_value) / 2;
if (golden_g_value != 0) {
golden_rg_ratio = awb_cfg->golden_r_value * 0x400
/ golden_g_value;
golden_bg_ratio = awb_cfg->golden_b_value * 0x400
/ golden_g_value;
} else {
golden_rg_ratio = RG_Ratio_Typical_Default;
golden_bg_ratio = BG_Ratio_Typical_Default;
}
}
/* apply OTP WB Calibration */
if ((otp_ptr->flag & 0x40) && golden_bg_ratio && golden_rg_ratio) {
rg_ratio = otp_ptr->rg_ratio;
bg_ratio = otp_ptr->bg_ratio;
dev_dbg(&client->dev, "rg:0x%x,bg:0x%x,gol rg:0x%x,bg:0x%x\n",
rg_ratio, bg_ratio, golden_rg_ratio, golden_bg_ratio);
/* calculate G gain */
R_gain = golden_rg_ratio * 1000 / rg_ratio;
B_gain = golden_bg_ratio * 1000 / bg_ratio;
G_gain = 1000;
if (R_gain < 1000 || B_gain < 1000) {
if (R_gain < B_gain)
base_gain = R_gain;
else
base_gain = B_gain;
} else {
base_gain = G_gain;
}
R_gain = 0x100 * R_gain / (base_gain);
B_gain = 0x100 * B_gain / (base_gain);
G_gain = 0x100 * G_gain / (base_gain);
/* update sensor WB gain */
if (R_gain > 0x100) {
imx214_write_reg(client, 0x0210,
IMX214_REG_VALUE_08BIT, R_gain >> 8);
imx214_write_reg(client, 0x0211,
IMX214_REG_VALUE_08BIT, R_gain & 0x00ff);
}
if (G_gain > 0x100) {
imx214_write_reg(client, 0x020e,
IMX214_REG_VALUE_08BIT, G_gain >> 8);
imx214_write_reg(client, 0x020f,
IMX214_REG_VALUE_08BIT, G_gain & 0x00ff);
imx214_write_reg(client, 0x0214,
IMX214_REG_VALUE_08BIT, G_gain >> 8);
imx214_write_reg(client, 0x0215,
IMX214_REG_VALUE_08BIT, G_gain & 0x00ff);
}
if (B_gain > 0x100) {
imx214_write_reg(client, 0x0212,
IMX214_REG_VALUE_08BIT, B_gain >> 8);
imx214_write_reg(client, 0x0213,
IMX214_REG_VALUE_08BIT, B_gain & 0x00ff);
}
dev_dbg(&client->dev, "apply awb gain: 0x%x, 0x%x, 0x%x\n",
R_gain, G_gain, B_gain);
}
/* apply OTP Lenc Calibration */
if ((otp_ptr->flag & 0x10) && lsc_cfg->enable) {
for (i = 0; i < 504; i++) {
imx214_write_reg(client, 0xA300 + i,
IMX214_REG_VALUE_08BIT, otp_ptr->lenc[i]);
dev_dbg(&client->dev, "apply lenc[%d]: 0x%x\n",
i, otp_ptr->lenc[i]);
}
usleep_range(1000, 2000);
//choose lsc table 1
imx214_write_reg(client, 0x3021,
IMX214_REG_VALUE_08BIT, 0x01);
//enable lsc
imx214_write_reg(client, 0x0B00,
IMX214_REG_VALUE_08BIT, 0x01);
}
/* apply OTP SPC Calibration */
if (otp_ptr->flag & 0x08) {
for (i = 0; i < 63; i++) {
imx214_write_reg(client, 0xD04C + i,
IMX214_REG_VALUE_08BIT, otp_ptr->spc[i]);
dev_dbg(&client->dev, "apply spc[%d]: 0x%x\n",
i, otp_ptr->spc[i]);
imx214_write_reg(client, 0xD08C + i,
IMX214_REG_VALUE_08BIT, otp_ptr->spc[i + 63]);
dev_dbg(&client->dev, "apply spc[%d]: 0x%x\n",
i + 63, otp_ptr->spc[i + 63]);
}
//enable spc
imx214_write_reg(client, 0x7BC8,
IMX214_REG_VALUE_08BIT, 0x01);
}
return 0;
}
static int __imx214_start_stream(struct imx214 *imx214)
{
int ret;
ret = imx214_write_array(imx214->client, imx214->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
mutex_unlock(&imx214->mutex);
ret = v4l2_ctrl_handler_setup(&imx214->ctrl_handler);
mutex_lock(&imx214->mutex);
if (ret)
return ret;
ret = imx214_apply_otp(imx214);
if (ret)
return ret;
return imx214_write_reg(imx214->client,
IMX214_REG_CTRL_MODE,
IMX214_REG_VALUE_08BIT,
IMX214_MODE_STREAMING);
}
static int __imx214_stop_stream(struct imx214 *imx214)
{
return imx214_write_reg(imx214->client,
IMX214_REG_CTRL_MODE,
IMX214_REG_VALUE_08BIT,
IMX214_MODE_SW_STANDBY);
}
static int imx214_s_stream(struct v4l2_subdev *sd, int on)
{
struct imx214 *imx214 = to_imx214(sd);
struct i2c_client *client = imx214->client;
int ret = 0;
dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
imx214->cur_mode->width,
imx214->cur_mode->height,
DIV_ROUND_CLOSEST(imx214->cur_mode->max_fps.denominator,
imx214->cur_mode->max_fps.numerator));
mutex_lock(&imx214->mutex);
on = !!on;
if (on == imx214->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 = __imx214_start_stream(imx214);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__imx214_stop_stream(imx214);
pm_runtime_put(&client->dev);
}
imx214->streaming = on;
unlock_and_return:
mutex_unlock(&imx214->mutex);
return ret;
}
static int imx214_s_power(struct v4l2_subdev *sd, int on)
{
struct imx214 *imx214 = to_imx214(sd);
struct i2c_client *client = imx214->client;
int ret = 0;
mutex_lock(&imx214->mutex);
/* If the power state is not modified - no work to do. */
if (imx214->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 = imx214_write_array(imx214->client, imx214_global_regs);
if (ret) {
v4l2_err(sd, "could not set init registers\n");
pm_runtime_put_noidle(&client->dev);
goto unlock_and_return;
}
imx214->power_on = true;
} else {
pm_runtime_put(&client->dev);
imx214->power_on = false;
}
unlock_and_return:
mutex_unlock(&imx214->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 imx214_cal_delay(u32 cycles)
{
return DIV_ROUND_UP(cycles, IMX214_XVCLK_FREQ / 1000 / 1000);
}
static int __imx214_power_on(struct imx214 *imx214)
{
int ret;
u32 delay_us;
struct device *dev = &imx214->client->dev;
if (!IS_ERR(imx214->power_gpio))
gpiod_set_value_cansleep(imx214->power_gpio, 1);
usleep_range(1000, 2000);
if (!IS_ERR_OR_NULL(imx214->pins_default)) {
ret = pinctrl_select_state(imx214->pinctrl,
imx214->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
ret = clk_set_rate(imx214->xvclk, IMX214_XVCLK_FREQ);
if (ret < 0)
dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
if (clk_get_rate(imx214->xvclk) != IMX214_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(imx214->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(imx214->reset_gpio))
gpiod_set_value_cansleep(imx214->reset_gpio, 0);
ret = regulator_bulk_enable(IMX214_NUM_SUPPLIES, imx214->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(imx214->reset_gpio))
gpiod_set_value_cansleep(imx214->reset_gpio, 1);
usleep_range(500, 1000);
if (!IS_ERR(imx214->pwdn_gpio))
gpiod_set_value_cansleep(imx214->pwdn_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = imx214_cal_delay(8192);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(imx214->xvclk);
return ret;
}
static void __imx214_power_off(struct imx214 *imx214)
{
int ret;
struct device *dev = &imx214->client->dev;
if (!IS_ERR(imx214->pwdn_gpio))
gpiod_set_value_cansleep(imx214->pwdn_gpio, 0);
clk_disable_unprepare(imx214->xvclk);
if (!IS_ERR(imx214->reset_gpio))
gpiod_set_value_cansleep(imx214->reset_gpio, 0);
if (!IS_ERR_OR_NULL(imx214->pins_sleep)) {
ret = pinctrl_select_state(imx214->pinctrl,
imx214->pins_sleep);
if (ret < 0)
dev_dbg(dev, "could not set pins\n");
}
if (!IS_ERR(imx214->power_gpio))
gpiod_set_value_cansleep(imx214->power_gpio, 0);
regulator_bulk_disable(IMX214_NUM_SUPPLIES, imx214->supplies);
}
static int imx214_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx214 *imx214 = to_imx214(sd);
return __imx214_power_on(imx214);
}
static int imx214_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx214 *imx214 = to_imx214(sd);
__imx214_power_off(imx214);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int imx214_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx214 *imx214 = to_imx214(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct imx214_mode *def_mode = &imx214->support_modes[0];
mutex_lock(&imx214->mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = IMX214_MEDIA_BUS_FMT;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&imx214->mutex);
/* No crop or compose */
return 0;
}
#endif
static int imx214_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
struct imx214 *imx214 = to_imx214(sd);
if (fie->index >= imx214->cfg_num)
return -EINVAL;
if (fie->code != IMX214_MEDIA_BUS_FMT)
return -EINVAL;
fie->width = imx214->support_modes[fie->index].width;
fie->height = imx214->support_modes[fie->index].height;
fie->interval = imx214->support_modes[fie->index].max_fps;
return 0;
}
static int imx214_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_config *config)
{
struct imx214 *imx214 = to_imx214(sd);
u32 lane_num = imx214->bus_cfg.bus.mipi_csi2.num_data_lanes;
u32 val = 0;
val = 1 << (lane_num - 1) |
V4L2_MBUS_CSI2_CHANNEL_0 |
V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
config->type = V4L2_MBUS_CSI2_DPHY;
config->flags = val;
return 0;
}
#define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4)
#define DST_WIDTH_2096 2096
#define DST_HEIGHT_1560 1560
static int imx214_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct imx214 *imx214 = to_imx214(sd);
if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {
if (imx214->cur_mode->width == 2104) {
sel->r.left = CROP_START(imx214->cur_mode->width, DST_WIDTH_2096);
sel->r.width = DST_WIDTH_2096;
sel->r.top = CROP_START(imx214->cur_mode->height, DST_HEIGHT_1560);
sel->r.height = DST_HEIGHT_1560;
} else {
sel->r.left = CROP_START(imx214->cur_mode->width,
imx214->cur_mode->width);
sel->r.width = imx214->cur_mode->width;
sel->r.top = CROP_START(imx214->cur_mode->height,
imx214->cur_mode->height);
sel->r.height = imx214->cur_mode->height;
}
return 0;
}
return -EINVAL;
}
static const struct dev_pm_ops imx214_pm_ops = {
SET_RUNTIME_PM_OPS(imx214_runtime_suspend,
imx214_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops imx214_internal_ops = {
.open = imx214_open,
};
#endif
static const struct v4l2_subdev_core_ops imx214_core_ops = {
.s_power = imx214_s_power,
.ioctl = imx214_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = imx214_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops imx214_video_ops = {
.s_stream = imx214_s_stream,
.g_frame_interval = imx214_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops imx214_pad_ops = {
.enum_mbus_code = imx214_enum_mbus_code,
.enum_frame_size = imx214_enum_frame_sizes,
.enum_frame_interval = imx214_enum_frame_interval,
.get_fmt = imx214_get_fmt,
.set_fmt = imx214_set_fmt,
.get_selection = imx214_get_selection,
.get_mbus_config = imx214_g_mbus_config,
};
static const struct v4l2_subdev_ops imx214_subdev_ops = {
.core = &imx214_core_ops,
.video = &imx214_video_ops,
.pad = &imx214_pad_ops,
};
static int imx214_set_gain_reg(struct imx214 *imx214, u32 a_gain)
{
int ret = 0;
u32 gain_reg = 0;
gain_reg = (512 - (512 * 512 / a_gain));
if (gain_reg > 480)
gain_reg = 480;
ret = imx214_write_reg(imx214->client,
IMX214_REG_GAIN_H,
IMX214_REG_VALUE_08BIT,
((gain_reg & 0x100) >> 8));
ret |= imx214_write_reg(imx214->client,
IMX214_REG_GAIN_L,
IMX214_REG_VALUE_08BIT,
(gain_reg & 0xff));
return ret;
}
static int imx214_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx214 *imx214 = container_of(ctrl->handler,
struct imx214, ctrl_handler);
struct i2c_client *client = imx214->client;
s64 max;
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 = imx214->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(imx214->exposure,
imx214->exposure->minimum, max,
imx214->exposure->step,
imx214->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
/* 4 least significant bits of expsoure are fractional part */
ret = imx214_write_reg(imx214->client,
IMX214_REG_EXPOSURE,
IMX214_REG_VALUE_16BIT,
ctrl->val);
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = imx214_set_gain_reg(imx214, ctrl->val);
break;
case V4L2_CID_VBLANK:
ret = imx214_write_reg(imx214->client,
IMX214_REG_VTS,
IMX214_REG_VALUE_16BIT,
ctrl->val + imx214->cur_mode->height);
break;
case V4L2_CID_TEST_PATTERN:
ret = imx214_enable_test_pattern(imx214, 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 imx214_ctrl_ops = {
.s_ctrl = imx214_set_ctrl,
};
static int imx214_initialize_controls(struct imx214 *imx214)
{
const struct imx214_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
u64 dst_pixel_rate = 0;
u32 lane_num = imx214->bus_cfg.bus.mipi_csi2.num_data_lanes;
handler = &imx214->ctrl_handler;
mode = imx214->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 8);
if (ret)
return ret;
handler->lock = &imx214->mutex;
imx214->link_freq = v4l2_ctrl_new_int_menu(handler, NULL,
V4L2_CID_LINK_FREQ,
1, 0, link_freq_items);
dst_pixel_rate = (u32)link_freq_items[mode->link_freq_idx] / mode->bpp * 2 * lane_num;
imx214->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
V4L2_CID_PIXEL_RATE,
0, IMX214_PIXEL_RATE,
1, dst_pixel_rate);
__v4l2_ctrl_s_ctrl(imx214->link_freq,
mode->link_freq_idx);
h_blank = mode->hts_def - mode->width;
imx214->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (imx214->hblank)
imx214->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
imx214->vblank = v4l2_ctrl_new_std(handler, &imx214_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
IMX214_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - 4;
imx214->exposure = v4l2_ctrl_new_std(handler, &imx214_ctrl_ops,
V4L2_CID_EXPOSURE, IMX214_EXPOSURE_MIN,
exposure_max, IMX214_EXPOSURE_STEP,
mode->exp_def);
imx214->anal_gain = v4l2_ctrl_new_std(handler, &imx214_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, IMX214_GAIN_MIN,
IMX214_GAIN_MAX, IMX214_GAIN_STEP,
IMX214_GAIN_DEFAULT);
imx214->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&imx214_ctrl_ops, V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx214_test_pattern_menu) - 1,
0, 0, imx214_test_pattern_menu);
if (handler->error) {
ret = handler->error;
dev_err(&imx214->client->dev,
"Failed to init controls(%d)\n", ret);
goto err_free_handler;
}
imx214->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int imx214_check_sensor_id(struct imx214 *imx214,
struct i2c_client *client)
{
struct device *dev = &imx214->client->dev;
u32 id = 0;
int ret;
ret = imx214_read_reg(client, IMX214_REG_CHIP_ID,
IMX214_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 OV%04x sensor\n", id);
return 0;
}
static int imx214_configure_regulators(struct imx214 *imx214)
{
unsigned int i;
for (i = 0; i < IMX214_NUM_SUPPLIES; i++)
imx214->supplies[i].supply = imx214_supply_names[i];
return devm_regulator_bulk_get(&imx214->client->dev,
IMX214_NUM_SUPPLIES,
imx214->supplies);
}
static int imx214_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct imx214 *imx214;
struct v4l2_subdev *sd;
struct device_node *endpoint;
char facing[2];
struct device_node *eeprom_ctrl_node;
struct i2c_client *eeprom_ctrl_client;
struct v4l2_subdev *eeprom_ctrl;
struct imx214_otp_info *otp_ptr;
int ret;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
imx214 = devm_kzalloc(dev, sizeof(*imx214), GFP_KERNEL);
if (!imx214)
return -ENOMEM;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&imx214->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&imx214->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&imx214->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&imx214->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
imx214->client = client;
endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
if (!endpoint) {
dev_err(dev, "Failed to get endpoint\n");
return -EINVAL;
}
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
&imx214->bus_cfg);
if (ret) {
dev_err(dev, "Failed to get bus cfg\n");
return ret;
}
if (imx214->bus_cfg.bus.mipi_csi2.num_data_lanes == 4) {
imx214->support_modes = supported_modes_4lane;
imx214->cfg_num = ARRAY_SIZE(supported_modes_4lane);
} else {
imx214->support_modes = supported_modes_2lane;
imx214->cfg_num = ARRAY_SIZE(supported_modes_2lane);
}
imx214->cur_mode = &imx214->support_modes[0];
imx214->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(imx214->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
imx214->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(imx214->power_gpio))
dev_warn(dev, "Failed to get power-gpios, maybe no use\n");
imx214->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(imx214->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
imx214->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(imx214->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
ret = imx214_configure_regulators(imx214);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
imx214->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(imx214->pinctrl)) {
imx214->pins_default =
pinctrl_lookup_state(imx214->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(imx214->pins_default))
dev_err(dev, "could not get default pinstate\n");
imx214->pins_sleep =
pinctrl_lookup_state(imx214->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(imx214->pins_sleep))
dev_err(dev, "could not get sleep pinstate\n");
}
mutex_init(&imx214->mutex);
sd = &imx214->subdev;
v4l2_i2c_subdev_init(sd, client, &imx214_subdev_ops);
ret = imx214_initialize_controls(imx214);
if (ret)
goto err_destroy_mutex;
ret = __imx214_power_on(imx214);
if (ret)
goto err_free_handler;
ret = imx214_check_sensor_id(imx214, client);
if (ret)
goto err_power_off;
eeprom_ctrl_node = of_parse_phandle(node, "eeprom-ctrl", 0);
if (eeprom_ctrl_node) {
eeprom_ctrl_client =
of_find_i2c_device_by_node(eeprom_ctrl_node);
of_node_put(eeprom_ctrl_node);
if (IS_ERR_OR_NULL(eeprom_ctrl_client)) {
dev_err(dev, "can not get node\n");
goto continue_probe;
}
eeprom_ctrl = i2c_get_clientdata(eeprom_ctrl_client);
if (IS_ERR_OR_NULL(eeprom_ctrl)) {
dev_err(dev, "can not get eeprom i2c client\n");
} else {
otp_ptr = devm_kzalloc(dev, sizeof(*otp_ptr),
GFP_KERNEL);
if (!otp_ptr)
return -ENOMEM;
ret = v4l2_subdev_call(eeprom_ctrl,
core, ioctl, 0, otp_ptr);
if (!ret) {
imx214->otp = otp_ptr;
} else {
imx214->otp = NULL;
devm_kfree(dev, otp_ptr);
}
}
}
continue_probe:
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &imx214_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
imx214->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &imx214->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(imx214->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
imx214->module_index, facing,
IMX214_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:
__imx214_power_off(imx214);
err_free_handler:
v4l2_ctrl_handler_free(&imx214->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&imx214->mutex);
return ret;
}
static int imx214_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx214 *imx214 = to_imx214(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&imx214->ctrl_handler);
mutex_destroy(&imx214->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__imx214_power_off(imx214);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id imx214_of_match[] = {
{ .compatible = "sony,imx214" },
{},
};
MODULE_DEVICE_TABLE(of, imx214_of_match);
#endif
static const struct i2c_device_id imx214_match_id[] = {
{ "sony,imx214", 0 },
{},
};
static struct i2c_driver imx214_i2c_driver = {
.driver = {
.name = IMX214_NAME,
.pm = &imx214_pm_ops,
.of_match_table = of_match_ptr(imx214_of_match),
},
.probe = &imx214_probe,
.remove = &imx214_remove,
.id_table = imx214_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&imx214_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&imx214_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("Sony imx214 sensor driver");
MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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