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android13/kernel-5.10/drivers/media/i2c/imx334.c

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// SPDX-License-Identifier: GPL-2.0
/*
* imx334 driver
*
* Copyright (C) 2020 Rockchip Electronics Co., Ltd.
* V0.0X01.0X03 add enum_frame_interval function.
* V0.0X01.0X04
* 1.add parse mclk pinctrl.
* 2.add set flip ctrl.
* V0.0X01.0X05 add quick stream on/off
*/
#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 <linux/pinctrl/consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <linux/mfd/syscon.h>
#include <linux/rk-preisp.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x05)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define IMX334_LINK_FREQ_445 445500000// 891Mbps
#define IMX334_LINK_FREQ_594 594000000// 1188Mbps
#define IMX334_LINK_FREQ_891 891000000// 1782Mbps
#define IMX334_LANES 4
#define PIXEL_RATE_WITH_445M_10BIT (IMX334_LINK_FREQ_445 * 2 / 10 * 4)
#define PIXEL_RATE_WITH_594M_12BIT (IMX334_LINK_FREQ_594 * 2 / 12 * 4)
#define PIXEL_RATE_WITH_891M_10BIT (IMX334_LINK_FREQ_891 * 2 / 10 * 4)
#define PIXEL_RATE_WITH_891M_12BIT (IMX334_LINK_FREQ_891 * 2 / 12 * 4)
#define IMX334_XVCLK_FREQ_37 37125000
#define IMX334_XVCLK_FREQ_74 74250000
#define CHIP_ID 0x30
#define IMX334_REG_CHIP_ID 0x302c
#define IMX334_REG_CTRL_MODE 0x3000
#define IMX334_MODE_SW_STANDBY 0x1
#define IMX334_MODE_STREAMING 0x0
#define IMX334_LF_GAIN_REG_L 0x30E8
#define IMX334_SF1_GAIN_REG_L 0x30EA
#define IMX334_LF_EXPO_REG_H 0x305A
#define IMX334_LF_EXPO_REG_M 0x3059
#define IMX334_LF_EXPO_REG_L 0x3058
#define IMX334_SF1_EXPO_REG_H 0x305E
#define IMX334_SF1_EXPO_REG_M 0x305D
#define IMX334_SF1_EXPO_REG_L 0x305C
#define IMX334_RHS1_REG_H 0x306a
#define IMX334_RHS1_REG_M 0x3069
#define IMX334_RHS1_REG_L 0x3068
#define IMX334_EXPOSURE_MIN 5
#define IMX334_EXPOSURE_STEP 1
#define IMX334_VTS_MAX 0xfffff
#define IMX334_REG_GAIN 0x30e8
#define IMX334_GAIN_MIN 0x00
#define IMX334_GAIN_MAX 0xf0
#define IMX334_GAIN_STEP 1
#define IMX334_GAIN_DEFAULT 0x30
#define IMX334_REG_TEST_PATTERN 0x5e00
#define IMX334_TEST_PATTERN_ENABLE 0x80
#define IMX334_TEST_PATTERN_DISABLE 0x0
#define IMX334_REG_VTS_H 0x3032
#define IMX334_REG_VTS_M 0x3031
#define IMX334_REG_VTS_L 0x3030
#define IMX334_FETCH_EXP_H(VAL) (((VAL) >> 16) & 0x0F)
#define IMX334_FETCH_EXP_M(VAL) (((VAL) >> 8) & 0xFF)
#define IMX334_FETCH_EXP_L(VAL) ((VAL) & 0xFF)
#define IMX334_FETCH_RHS1_H(VAL) (((VAL) >> 16) & 0x0F)
#define IMX334_FETCH_RHS1_M(VAL) (((VAL) >> 8) & 0xFF)
#define IMX334_FETCH_RHS1_L(VAL) ((VAL) & 0xFF)
#define IMX334_FETCH_VTS_H(VAL) (((VAL) >> 16) & 0x0F)
#define IMX334_FETCH_VTS_M(VAL) (((VAL) >> 8) & 0xFF)
#define IMX334_FETCH_VTS_L(VAL) ((VAL) & 0xFF)
#define IMX334_VREVERSE_REG 0x304f
#define IMX334_HREVERSE_REG 0x304e
#define REG_DELAY 0xFFFE
#define REG_NULL 0xFFFF
#define IMX334_REG_VALUE_08BIT 1
#define IMX334_REG_VALUE_16BIT 2
#define IMX334_REG_VALUE_24BIT 3
#define OF_CAMERA_HDR_MODE "rockchip,camera-hdr-mode"
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define IMX334_NAME "imx334"
#define BRL 2200
#define RHS1_MAX 4397 // <2*BRL && 4n+1
#define SHR1_MIN 9
static const char * const imx334_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
#define IMX334_NUM_SUPPLIES ARRAY_SIZE(imx334_supply_names)
struct regval {
u16 addr;
u8 val;
};
struct imx334_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 *global_reg_list;
const struct regval *reg_list;
u32 hdr_mode;
u32 vclk_freq;
u32 bpp;
u32 mipi_freq_idx;
u32 vc[PAD_MAX];
};
struct imx334 {
struct i2c_client *client;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[IMX334_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 imx334_mode *cur_mode;
u32 module_index;
const char *module_facing;
const char *module_name;
const char *len_name;
u32 cur_vts;
bool has_init_exp;
struct preisp_hdrae_exp_s init_hdrae_exp;
u32 cur_vclk_freq;
u32 cur_mipi_freq_idx;
};
#define to_imx334(sd) container_of(sd, struct imx334, subdev)
static const struct regval imx334_10_3840x2160_global_regs[] = {
{0x3001, 0x00},
{0x3002, 0x00},
{0x300C, 0x5B},// BCWAIT_TIME[7:0]
{0x300D, 0x40},// CPWAIT_TIME[7:0]
{0x3050, 0x00},// ADBIT[0]
{0x316A, 0x7E},// INCKSEL4[1:0]
{0x319D, 0x00},// MDBIT
{0x31A1, 0x00},// XVS_DRV[1:0]
{0x3288, 0x21},// -
{0x328A, 0x02},// -
{0x3414, 0x05},// -
{0x3416, 0x18},// -
{0x341D, 0x01},//
{0x35AC, 0x0E},// -
{0x3648, 0x01},// -
{0x364A, 0x04},// -
{0x364C, 0x04},// -
{0x3678, 0x01},// -
{0x367C, 0x31},// -
{0x367E, 0x31},// -
{0x3708, 0x02},// -
{0x3714, 0x01},// -
{0x3715, 0x02},// -
{0x3716, 0x02},// -
{0x3717, 0x02},// -
{0x371C, 0x3D},// -
{0x371D, 0x3F},// -
{0x372C, 0x00},// -
{0x372D, 0x00},// -
{0x372E, 0x46},// -
{0x372F, 0x00},// -
{0x3730, 0x89},// -
{0x3731, 0x00},// -
{0x3732, 0x08},// -
{0x3733, 0x01},// -
{0x3734, 0xFE},// -
{0x3735, 0x05},// -
{0x375D, 0x00},// -
{0x375E, 0x00},// -
{0x375F, 0x61},// -
{0x3760, 0x06},// -
{0x3768, 0x1B},// -
{0x3769, 0x1B},// -
{0x376A, 0x1A},// -
{0x376B, 0x19},// -
{0x376C, 0x18},// -
{0x376D, 0x14},// -
{0x376E, 0x0F},// -
{0x3776, 0x00},// -
{0x3777, 0x00},// -
{0x3778, 0x46},// -
{0x3779, 0x00},// -
{0x377A, 0x08},// -
{0x377B, 0x01},// -
{0x377C, 0x45},// -
{0x377D, 0x01},// -
{0x377E, 0x23},// -
{0x377F, 0x02},// -
{0x3780, 0xD9},// -
{0x3781, 0x03},// -
{0x3782, 0xF5},// -
{0x3783, 0x06},// -
{0x3784, 0xA5},// -
{0x3788, 0x0F},// -
{0x378A, 0xD9},// -
{0x378B, 0x03},// -
{0x378C, 0xEB},// -
{0x378D, 0x05},// -
{0x378E, 0x87},// -
{0x378F, 0x06},// -
{0x3790, 0xF5},// -
{0x3792, 0x43},// -
{0x3794, 0x7A},// -
{0x3796, 0xA1},// -
{0x3E04, 0x0E},// -
{REG_NULL, 0x00},
};
/*
*IMX334LQR All-pixel scan CSI-2_4lane 37.125Mhz
*AD:10bit Output:10bit 891Mbps Master Mode 30fps
*Tool ver : Ver4.0
*/
static const struct regval imx334_linear_10_3840x2160_regs[] = {
{0x302E, 0x18},
{0x302F, 0x0f},
{0x3030, 0xCA},// VMAX[19:0]
{0x3031, 0x08},//
{0x3034, 0x4c},
{0x3035, 0x04},
{0x3048, 0x00},// WDMODE[0]
{0x3049, 0x00},// WDSEL[1:0]
{0x304A, 0x00},// WD_SET1[2:0]
{0x304B, 0x01},// WD_SET2[3:0]
{0x304C, 0x14},// OPB_SIZE_V[5:0]
{0x3058, 0x05},// SHR0[19:0]
{0x3059, 0x00},//
{0x3068, 0x8B},// RHS1[19:0]
{0x3069, 0x00},//{
{0x3076, 0x84},
{0x3077, 0x08},
{0x315a, 0x06},
{0x319e, 0x02},
{0x31D7, 0x00},// XVSMSKCNT_INT[1:0]
{0x3200, 0x11},// FGAINEN[0]
{0x341C, 0x47},// ADBIT1[8:0]
{0x3a18, 0x7f},
{0x3a1a, 0x37},
{0x3a1c, 0x37},
{0x3a1e, 0xf7},
{0x3a1f, 0x00},
{0x3a20, 0x3f},
{0x3a22, 0x6f},
{0x3a24, 0x3f},
{0x3a26, 0x5f},
{0x3a28, 0x2f},
{REG_NULL, 0x00},
};
/*
*All-pixel scan CSI-2_4lane 37.125Mhz
*AD:10bit Output:10bit 1782Mbps Master Mode DOL HDR 2frame VC
*Tool ver : Ver3.0
*/
static const struct regval imx334_hdr_10_3840x2160_regs[] = {
{0x302E, 0x18},
{0x302F, 0x0f},
{0x3030, 0xC4},// VMAX[19:0]
{0x3031, 0x09},//
{0x3034, 0xEF},// HMAX[15:0]
{0x3035, 0x01},//
{0x3048, 0x01},// WDMODE[0]
{0x3049, 0x01},// WDSEL[1:0]
{0x304A, 0x01},// WD_SET1[2:0]
{0x304B, 0x02},// WD_SET2[3:0]
{0x304C, 0x13},// OPB_SIZE_V[5:0]
{0x3058, 0xD0},// SHR0[19:0]
{0x3059, 0x07},//
{0x3068, 0x51},// RHS1[19:0]
{0x3069, 0x05},//{
{0x3076, 0x84},
{0x3077, 0x08},
{0x315A, 0x02},// INCKSEL2[1:0]
{0x319E, 0x00},
{0x31D7, 0x01},// XVSMSKCNT_INT[1:0]
{0x3200, 0x10},// FGAINEN[0]
{0x341C, 0xFF},// ADBIT1[8:0]
{0x3a18, 0xB7},
{0x3a1a, 0x67},
{0x3a1c, 0x6F},
{0x3a1e, 0xf7},
{0x3a1f, 0xDF},
{0x3a20, 0x6F},
{0x3a22, 0xCF},
{0x3a24, 0x6F},
{0x3a26, 0xB7},
{0x3a28, 0x5F},
{REG_NULL, 0x00},
};
static const struct regval imx334_12_3840x2160_global_regs[] = {
{0x3001, 0x00},
{0x3002, 0x00},
{0x31A1, 0x00},// XVS_DRV[1:0]
{0x3288, 0x21},// -
{0x328A, 0x02},// -
{0x3414, 0x05},// -
{0x3416, 0x18},// -
{0x35AC, 0x0E},// -
{0x3648, 0x01},// -
{0x364A, 0x04},// -
{0x364C, 0x04},// -
{0x3678, 0x01},// -
{0x367C, 0x31},// -
{0x367E, 0x31},// -
{0x3708, 0x02},// -
{0x3714, 0x01},// -
{0x3715, 0x02},// -
{0x3716, 0x02},// -
{0x3717, 0x02},// -
{0x371C, 0x3D},// -
{0x371D, 0x3F},// -
{0x372C, 0x00},// -
{0x372D, 0x00},// -
{0x372E, 0x46},// -
{0x372F, 0x00},// -
{0x3730, 0x89},// -
{0x3731, 0x00},// -
{0x3732, 0x08},// -
{0x3733, 0x01},// -
{0x3734, 0xFE},// -
{0x3735, 0x05},// -
{0x375D, 0x00},// -
{0x375E, 0x00},// -
{0x375F, 0x61},// -
{0x3760, 0x06},// -
{0x3768, 0x1B},// -
{0x3769, 0x1B},// -
{0x376A, 0x1A},// -
{0x376B, 0x19},// -
{0x376C, 0x18},// -
{0x376D, 0x14},// -
{0x376E, 0x0F},// -
{0x3776, 0x00},// -
{0x3777, 0x00},// -
{0x3778, 0x46},// -
{0x3779, 0x00},// -
{0x377A, 0x08},// -
{0x377B, 0x01},// -
{0x377C, 0x45},// -
{0x377D, 0x01},// -
{0x377E, 0x23},// -
{0x377F, 0x02},// -
{0x3780, 0xD9},// -
{0x3781, 0x03},// -
{0x3782, 0xF5},// -
{0x3783, 0x06},// -
{0x3784, 0xA5},// -
{0x3788, 0x0F},// -
{0x378A, 0xD9},// -
{0x378B, 0x03},// -
{0x378C, 0xEB},// -
{0x378D, 0x05},// -
{0x378E, 0x87},// -
{0x378F, 0x06},// -
{0x3790, 0xF5},// -
{0x3792, 0x43},// -
{0x3794, 0x7A},// -
{0x3796, 0xA1},// -
{0x3E04, 0x0E},// -
{REG_NULL, 0x00},
};
/*
*IMX334LQR All-pixel scan CSI-2_4lane 37.125Mhz
*AD:12bit Output:12bit 1188Mbps Master Mode 30fps
*Tool ver : Ver4.0
*/
static const struct regval imx334_linear_12_3840x2160_regs[] = {
{0x302E, 0x18},
{0x302F, 0x0f},
{0x3030, 0xCA},// VMAX[19:0]
{0x3031, 0x08},//
{0x300C, 0x5B},// BCWAIT_TIME[7:0]
{0x300D, 0x40},// CPWAIT_TIME[7:0]
{0x3034, 0x4C},// HMAX[15:0]
{0x3035, 0x04},//
{0x3048, 0x00},// WDMODE[0]
{0x3049, 0x00},// WDSEL[1:0]
{0x304A, 0x00},// WD_SET1[2:0]
{0x304B, 0x01},// WD_SET2[3:0]
{0x304C, 0x14},// OPB_SIZE_V[5:0]
{0x3058, 0x17},// SHR0[19:0]
{0x3059, 0x00},//
{0x3068, 0x8B},// RHS1[19:0]
{0x3069, 0x00},//
{0x3076, 0x84},
{0x3077, 0x08},
{0x314C, 0x80},// INCKSEL 1[8:0]
{0x315A, 0x02},// INCKSEL2[1:0]
{0x316A, 0x7E},// INCKSEL4[1:0]
{0x319E, 0x01},// SYS_MODE
{0x31D7, 0x00},// XVSMSKCNT_INT[1:0]
{0x3200, 0x11},// FGAINEN[0]
{0x3A18, 0x8F},// TCLKPOST[15:0]
{0x3A1A, 0x4F},// TCLKPREPARE[15:0]
{0x3A1C, 0x47},// TCLKTRAIL[15:0]
{0x3A1E, 0x37},// TCLKZERO[15:0]
{0x3A20, 0x4F},// THSPREPARE[15:0]
{0x3A22, 0x87},// THSZERO[15:0]
{0x3A24, 0x4F},// THSTRAIL[15:0]
{0x3A26, 0x7F},// THSEXIT[15:0]
{0x3A28, 0x3F},// TLPX[15:0]
{REG_NULL, 0x00},
};
/*
*All-pixel scan CSI-2_4lane 74.25Mhz
*AD:12bit Output:12bit 1782Mbps Master Mode DOL HDR 2frame VC
*Tool ver : Ver3.0
*/
static const struct regval imx334_hdr_12_74M_3840x2160_regs[] = {
{0x302E, 0x18},
{0x302F, 0x0f},
{0x3030, 0xC8},// VMAX[19:0]
{0x3031, 0x08},//
{0x300C, 0xB6},// BCWAIT_TIME[7:0]
{0x300D, 0x7F},// CPWAIT_TIME[7:0]
{0x3034, 0x26},// HMAX[15:0]
{0x3035, 0x02},//
{0x3048, 0x01},// WDMODE[0]
{0x3049, 0x01},// WDSEL[1:0]
{0x304A, 0x01},// WD_SET1[2:0]
{0x304B, 0x02},// WD_SET2[3:0]
{0x304C, 0x13},// OPB_SIZE_V[5:0]
{0x3058, 0xC2},// SHR0[19:0]
{0x3059, 0x01},//
{0x3068, 0x19},// RHS1[19:0]
{0x3069, 0x01},//
{0x3076, 0x84},
{0x3077, 0x08},
{0x314C, 0xC0},// INCKSEL 1[8:0]
{0x315A, 0x03},// INCKSEL2[1:0]
{0x316A, 0x7F},// INCKSEL4[1:0]
{0x319E, 0x00},// SYS_MODE
{0x31D7, 0x01},// XVSMSKCNT_INT[1:0]
{0x3200, 0x10},// FGAINEN[0]
{0x3A18, 0xB7},// TCLKPOST[15:0]
{0x3A1A, 0x67},// TCLKPREPARE[15:0]
{0x3A1C, 0x6F},// TCLKTRAIL[15:0]
{0x3A1E, 0xDF},// TCLKZERO[15:0]
{0x3A20, 0x6F},// THSPREPARE[15:0]
{0x3A22, 0xCF},// THSZERO[15:0]
{0x3A24, 0x6F},// THSTRAIL[15:0]
{0x3A26, 0xB7},// THSEXIT[15:0]
{0x3A28, 0x5F},// TLPX[15:0]
{REG_NULL, 0x00},
};
static const struct imx334_mode supported_modes[] = {
{
.width = 3864,
.height = 2180,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0600,
.hts_def = 0x044C * 4,
.vts_def = 0x08CA,
.bus_fmt = MEDIA_BUS_FMT_SRGGB10_1X10,
.global_reg_list = imx334_10_3840x2160_global_regs,
.reg_list = imx334_linear_10_3840x2160_regs,
.hdr_mode = NO_HDR,
.vclk_freq = IMX334_XVCLK_FREQ_37,
.bpp = 10,
.mipi_freq_idx = 0,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
}, {
.width = 3864,
.height = 2180,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0080,
.hts_def = 0x01EF * 8,
.vts_def = 0x09C4 * 2,
.global_reg_list = imx334_10_3840x2160_global_regs,
.reg_list = imx334_hdr_10_3840x2160_regs,
.bus_fmt = MEDIA_BUS_FMT_SRGGB10_1X10,
.hdr_mode = HDR_X2,
.vclk_freq = IMX334_XVCLK_FREQ_37,
.bpp = 10,
.mipi_freq_idx = 2,
.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
}, {
.width = 3864,
.height = 2180,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0600,
.hts_def = 0x044C * 4,
.vts_def = 0x08CA,
.bus_fmt = MEDIA_BUS_FMT_SRGGB12_1X12,
.global_reg_list = imx334_12_3840x2160_global_regs,
.reg_list = imx334_linear_12_3840x2160_regs,
.hdr_mode = NO_HDR,
.vclk_freq = IMX334_XVCLK_FREQ_37,
.bpp = 12,
.mipi_freq_idx = 1,
.vc[PAD0] = V4L2_MBUS_CSI2_CHANNEL_0,
}, {
.width = 3864,
.height = 2180,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.exp_def = 0x0080,
.hts_def = 0x0226 * 8,
.vts_def = 0x08C8 * 2,
.global_reg_list = imx334_12_3840x2160_global_regs,
.reg_list = imx334_hdr_12_74M_3840x2160_regs,
.bus_fmt = MEDIA_BUS_FMT_SRGGB12_1X12,
.hdr_mode = HDR_X2,
.vclk_freq = IMX334_XVCLK_FREQ_74,
.bpp = 12,
.mipi_freq_idx = 2,
.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_menu_items[] = {
IMX334_LINK_FREQ_445,
IMX334_LINK_FREQ_594,
IMX334_LINK_FREQ_891,
};
static const char * const imx334_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 imx334_write_reg(struct i2c_client *client, u16 reg,
int 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 imx334_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++)
if (unlikely(regs[i].addr == REG_DELAY))
usleep_range(regs[i].val, regs[i].val * 2);
else
ret = imx334_write_reg(client, regs[i].addr,
IMX334_REG_VALUE_08BIT,
regs[i].val);
return ret;
}
/* Read registers up to 4 at a time */
static int imx334_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, i;
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 *)&reg_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];
for (i = 0; i < 3; i++) {
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret == ARRAY_SIZE(msgs))
break;
}
if (ret != ARRAY_SIZE(msgs) && i == 3)
return -EIO;
*val = be32_to_cpu(data_be);
return 0;
}
static int imx334_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx334 *imx334 = to_imx334(sd);
const struct imx334_mode *mode;
s64 h_blank, vblank_def;
s64 dst_pixel_rate = 0;
int ret = 0;
mutex_lock(&imx334->mutex);
mode = v4l2_find_nearest_size(supported_modes,
ARRAY_SIZE(supported_modes),
width, height,
fmt->format.width, fmt->format.height);
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(&imx334->mutex);
return -ENOTTY;
#endif
} else {
imx334->cur_mode = mode;
imx334->cur_vts = imx334->cur_mode->vts_def;
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(imx334->hblank, h_blank,
h_blank, 1, h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(imx334->vblank, vblank_def,
IMX334_VTS_MAX - mode->height,
1, vblank_def);
if (imx334->cur_vclk_freq != mode->vclk_freq) {
clk_disable_unprepare(imx334->xvclk);
ret = clk_set_rate(imx334->xvclk, mode->vclk_freq);
ret |= clk_prepare_enable(imx334->xvclk);
if (ret < 0) {
dev_err(&imx334->client->dev, "Failed to enable xvclk\n");
mutex_unlock(&imx334->mutex);
return ret;
}
imx334->cur_vclk_freq = mode->vclk_freq;
}
if (imx334->cur_mipi_freq_idx != mode->mipi_freq_idx) {
dst_pixel_rate = ((u32)link_freq_menu_items[mode->mipi_freq_idx]) /
mode->bpp * 2 * IMX334_LANES;
__v4l2_ctrl_s_ctrl_int64(imx334->pixel_rate,
dst_pixel_rate);
__v4l2_ctrl_s_ctrl(imx334->link_freq,
mode->mipi_freq_idx);
imx334->cur_mipi_freq_idx = mode->mipi_freq_idx;
}
}
mutex_unlock(&imx334->mutex);
return 0;
}
static int imx334_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct imx334 *imx334 = to_imx334(sd);
const struct imx334_mode *mode = imx334->cur_mode;
mutex_lock(&imx334->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(&imx334->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;
/* format info: width/height/data type/virctual channel */
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(&imx334->mutex);
return 0;
}
static int imx334_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct imx334 *imx334 = to_imx334(sd);
if (code->index != 0)
return -EINVAL;
code->code = imx334->cur_mode->bus_fmt;
return 0;
}
static int imx334_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 != supported_modes[0].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 imx334_enable_test_pattern(struct imx334 *imx334, u32 pattern)
{
u32 val;
if (pattern)
val = (pattern - 1) | IMX334_TEST_PATTERN_ENABLE;
else
val = IMX334_TEST_PATTERN_DISABLE;
return imx334_write_reg(imx334->client,
IMX334_REG_TEST_PATTERN,
IMX334_REG_VALUE_08BIT,
val);
}
static int imx334_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct imx334 *imx334 = to_imx334(sd);
const struct imx334_mode *mode = imx334->cur_mode;
fi->interval = mode->max_fps;
return 0;
}
static int imx334_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
struct v4l2_mbus_config *config)
{
struct imx334 *imx334 = to_imx334(sd);
const struct imx334_mode *mode = imx334->cur_mode;
u32 val = 0;
val = 1 << (IMX334_LANES - 1) |
V4L2_MBUS_CSI2_CHANNEL_0 |
V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
config->flags = (mode->hdr_mode == NO_HDR) ? val : (val | V4L2_MBUS_CSI2_CHANNEL_1);
config->type = V4L2_MBUS_CSI2_DPHY;
return 0;
}
static void imx334_get_module_inf(struct imx334 *imx334,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strlcpy(inf->base.sensor, IMX334_NAME, sizeof(inf->base.sensor));
strlcpy(inf->base.module, imx334->module_name,
sizeof(inf->base.module));
strlcpy(inf->base.lens, imx334->len_name, sizeof(inf->base.lens));
}
static int imx334_set_hdrae(struct imx334 *imx334,
struct preisp_hdrae_exp_s *ae)
{
struct i2c_client *client = imx334->client;
u32 l_exp_time, m_exp_time, s_exp_time;
u32 l_a_gain, m_a_gain, s_a_gain;
u32 shr1 = 0;
u32 shr0 = 0;
u32 rhs1 = 0;
u32 rhs1_max = 0;
static int rhs1_old = 225;
int rhs1_change_limit;
int ret = 0;
u32 fsc = imx334->cur_vts;
if (!imx334->has_init_exp && !imx334->streaming) {
imx334->init_hdrae_exp = *ae;
imx334->has_init_exp = true;
dev_dbg(&imx334->client->dev, "imx334 don't stream, record exp for hdr!\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: L_exp:0x%x,0x%x, M_exp:0x%x,0x%x S_exp:0x%x,0x%x\n",
l_exp_time, l_a_gain,
m_exp_time, m_a_gain,
s_exp_time, s_a_gain);
if (imx334->cur_mode->hdr_mode == HDR_X2) {
//2 stagger
l_a_gain = m_a_gain;
l_exp_time = m_exp_time;
}
//gain effect n+1
ret |= imx334_write_reg(client,
IMX334_LF_GAIN_REG_L,
IMX334_REG_VALUE_08BIT,
l_a_gain & 0xff);
ret |= imx334_write_reg(client,
IMX334_SF1_GAIN_REG_L,
IMX334_REG_VALUE_08BIT,
s_a_gain & 0xff);
//long exposure and short exposure
shr0 = fsc - l_exp_time;
rhs1_max = (RHS1_MAX > (shr0 - 9)) ? (shr0 - 9) : RHS1_MAX;
rhs1_max = (rhs1_max >> 2) * 4 + 1;
rhs1 = ((SHR1_MIN + s_exp_time + 3) >> 2) * 4 + 1;
dev_dbg(&client->dev, "line(%d) rhs1 %d\n", __LINE__, rhs1);
if (rhs1 < 13)
rhs1 = 13;
else if (rhs1 > rhs1_max)
rhs1 = rhs1_max;
dev_dbg(&client->dev, "line(%d) rhs1 %d\n", __LINE__, rhs1);
//Dynamic adjustment rhs1 must meet the following conditions
rhs1_change_limit = rhs1_old + 2 * BRL - fsc + 2;
rhs1_change_limit = (rhs1_change_limit < 13) ? 13 : rhs1_change_limit;
rhs1_change_limit = ((rhs1_change_limit + 3) >> 2) * 4 + 1;
if (rhs1 < rhs1_change_limit)
rhs1 = rhs1_change_limit;
dev_dbg(&client->dev,
"line(%d) rhs1 %d,short time %d rhs1_old %d test %d\n",
__LINE__, rhs1, s_exp_time, rhs1_old,
(rhs1_old + 2 * BRL - fsc + 2));
rhs1_old = rhs1;
shr1 = rhs1 - s_exp_time;
if (shr1 < 9)
shr1 = 9;
else if (shr1 > (rhs1 - 2))
shr1 = rhs1 - 2;
if (shr0 < (rhs1 + 9))
shr0 = rhs1 + 9;
else if (shr0 > (fsc - 2))
shr0 = fsc - 2;
dev_dbg(&client->dev,
"fsc=%d,RHS1_MAX=%d,SHR1_MIN=%d,rhs1_max=%d\n",
fsc, RHS1_MAX, SHR1_MIN, rhs1_max);
dev_dbg(&client->dev,
"l_exp_time=%d,s_exp_time=%d,shr0=%d,shr1=%d,rhs1=%d,l_a_gain=%d,s_a_gain=%d\n",
l_exp_time, s_exp_time, shr0, shr1, rhs1, l_a_gain, s_a_gain);
//time effect n+2
ret |= imx334_write_reg(client,
IMX334_RHS1_REG_L,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_RHS1_L(rhs1));
ret |= imx334_write_reg(client,
IMX334_RHS1_REG_M,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_RHS1_M(rhs1));
ret |= imx334_write_reg(client,
IMX334_RHS1_REG_H,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_RHS1_H(rhs1));
ret |= imx334_write_reg(client,
IMX334_SF1_EXPO_REG_L,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_L(shr1));
ret |= imx334_write_reg(client,
IMX334_SF1_EXPO_REG_M,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_M(shr1));
ret |= imx334_write_reg(client,
IMX334_SF1_EXPO_REG_H,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_H(shr1));
ret |= imx334_write_reg(client,
IMX334_LF_EXPO_REG_L,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_L(shr0));
ret |= imx334_write_reg(client,
IMX334_LF_EXPO_REG_M,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_M(shr0));
ret |= imx334_write_reg(client,
IMX334_LF_EXPO_REG_H,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_H(shr0));
return ret;
}
static long imx334_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct imx334 *imx334 = to_imx334(sd);
struct rkmodule_hdr_cfg *hdr;
long ret = 0;
u32 i, h, w;
s64 dst_pixel_rate = 0;
const struct imx334_mode *mode;
u32 stream = 0;
switch (cmd) {
case PREISP_CMD_SET_HDRAE_EXP:
return imx334_set_hdrae(imx334, arg);
case RKMODULE_GET_MODULE_INFO:
imx334_get_module_inf(imx334, (struct rkmodule_inf *)arg);
break;
case RKMODULE_GET_HDR_CFG:
hdr = (struct rkmodule_hdr_cfg *)arg;
hdr->esp.mode = HDR_NORMAL_VC;
hdr->hdr_mode = imx334->cur_mode->hdr_mode;
break;
case RKMODULE_SET_HDR_CFG:
hdr = (struct rkmodule_hdr_cfg *)arg;
w = imx334->cur_mode->width;
h = imx334->cur_mode->height;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
if (w == supported_modes[i].width &&
h == supported_modes[i].height &&
supported_modes[i].hdr_mode == hdr->hdr_mode) {
imx334->cur_mode = &supported_modes[i];
break;
}
}
if (i == ARRAY_SIZE(supported_modes)) {
dev_err(&imx334->client->dev,
"not find hdr mode:%d %dx%d config\n",
hdr->hdr_mode, w, h);
ret = -EINVAL;
} else {
mode = imx334->cur_mode;
imx334->cur_vts = mode->vts_def;
w = mode->hts_def - mode->width;
h = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(imx334->hblank, w, w, 1, w);
__v4l2_ctrl_modify_range(imx334->vblank, h,
IMX334_VTS_MAX -
mode->height,
1, h);
if (imx334->cur_vclk_freq != mode->vclk_freq) {
clk_disable_unprepare(imx334->xvclk);
ret = clk_set_rate(imx334->xvclk, mode->vclk_freq);
ret |= clk_prepare_enable(imx334->xvclk);
if (ret < 0) {
dev_err(&imx334->client->dev, "Failed to enable xvclk\n");
return ret;
}
imx334->cur_vclk_freq = mode->vclk_freq;
}
if (imx334->cur_mipi_freq_idx != mode->mipi_freq_idx) {
dst_pixel_rate = ((u32)link_freq_menu_items[mode->mipi_freq_idx]) /
mode->bpp * 2 * IMX334_LANES;
__v4l2_ctrl_s_ctrl_int64(imx334->pixel_rate,
dst_pixel_rate);
__v4l2_ctrl_s_ctrl(imx334->link_freq,
mode->mipi_freq_idx);
imx334->cur_mipi_freq_idx = mode->mipi_freq_idx;
}
}
break;
case RKMODULE_SET_QUICK_STREAM:
stream = *((u32 *)arg);
if (stream)
ret = imx334_write_reg(imx334->client, IMX334_REG_CTRL_MODE,
IMX334_REG_VALUE_08BIT, 0);
else
ret = imx334_write_reg(imx334->client, IMX334_REG_CTRL_MODE,
IMX334_REG_VALUE_08BIT, 1);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long imx334_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;
u32 stream = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = imx334_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 = imx334_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 = imx334_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 = imx334_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 = imx334_ioctl(sd, cmd, hdrae);
kfree(hdrae);
break;
case RKMODULE_SET_QUICK_STREAM:
ret = copy_from_user(&stream, up, sizeof(u32));
if (!ret)
ret = imx334_ioctl(sd, cmd, &stream);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
static int __imx334_start_stream(struct imx334 *imx334)
{
int ret;
ret = imx334_write_array(imx334->client, imx334->cur_mode->global_reg_list);
if (ret)
return ret;
ret = imx334_write_array(imx334->client, imx334->cur_mode->reg_list);
if (ret)
return ret;
/* In case these controls are set before streaming */
if (imx334->has_init_exp && imx334->cur_mode->hdr_mode != NO_HDR) {
ret = imx334_ioctl(&imx334->subdev, PREISP_CMD_SET_HDRAE_EXP,
&imx334->init_hdrae_exp);
if (ret) {
dev_err(&imx334->client->dev,
"init exp fail in hdr mode\n");
return ret;
}
} else {
mutex_unlock(&imx334->mutex);
ret = v4l2_ctrl_handler_setup(&imx334->ctrl_handler);
mutex_lock(&imx334->mutex);
if (ret)
return ret;
}
return imx334_write_reg(imx334->client, IMX334_REG_CTRL_MODE,
IMX334_REG_VALUE_08BIT, 0);
}
static int __imx334_stop_stream(struct imx334 *imx334)
{
return imx334_write_reg(imx334->client, IMX334_REG_CTRL_MODE,
IMX334_REG_VALUE_08BIT, 1);
}
static int imx334_s_stream(struct v4l2_subdev *sd, int on)
{
struct imx334 *imx334 = to_imx334(sd);
struct i2c_client *client = imx334->client;
int ret = 0;
mutex_lock(&imx334->mutex);
on = !!on;
if (on == imx334->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 = __imx334_start_stream(imx334);
if (ret) {
v4l2_err(sd, "start stream failed while write regs\n");
pm_runtime_put(&client->dev);
goto unlock_and_return;
}
} else {
__imx334_stop_stream(imx334);
pm_runtime_put(&client->dev);
}
imx334->streaming = on;
unlock_and_return:
mutex_unlock(&imx334->mutex);
return ret;
}
static int imx334_s_power(struct v4l2_subdev *sd, int on)
{
struct imx334 *imx334 = to_imx334(sd);
struct i2c_client *client = imx334->client;
int ret = 0;
mutex_lock(&imx334->mutex);
/* If the power state is not modified - no work to do. */
if (imx334->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;
}
imx334->power_on = true;
} else {
pm_runtime_put(&client->dev);
imx334->power_on = false;
}
unlock_and_return:
mutex_unlock(&imx334->mutex);
return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 imx334_cal_delay(u32 cycles, struct imx334 *imx334)
{
if (imx334->cur_mode->vclk_freq == IMX334_XVCLK_FREQ_37)
return DIV_ROUND_UP(cycles, IMX334_XVCLK_FREQ_37 / 1000 / 1000);
else
return DIV_ROUND_UP(cycles, IMX334_XVCLK_FREQ_74 / 1000 / 1000);
}
static int __imx334_power_on(struct imx334 *imx334)
{
int ret;
u32 delay_us;
s64 vclk_freq;
struct device *dev = &imx334->client->dev;
if (!IS_ERR_OR_NULL(imx334->pins_default)) {
ret = pinctrl_select_state(imx334->pinctrl,
imx334->pins_default);
if (ret < 0)
dev_err(dev, "could not set pins\n");
}
if (imx334->cur_mode->vclk_freq == IMX334_XVCLK_FREQ_37)
vclk_freq = IMX334_XVCLK_FREQ_37;
else
vclk_freq = IMX334_XVCLK_FREQ_74;
ret = clk_set_rate(imx334->xvclk, vclk_freq);
if (ret < 0) {
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
return ret;
}
if (clk_get_rate(imx334->xvclk) != vclk_freq)
dev_warn(dev, "xvclk mismatched, modes are based on 37.125MHz\n");
ret = clk_prepare_enable(imx334->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
if (!IS_ERR(imx334->reset_gpio))
gpiod_set_value_cansleep(imx334->reset_gpio, 0);
ret = regulator_bulk_enable(IMX334_NUM_SUPPLIES, imx334->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
if (!IS_ERR(imx334->reset_gpio))
gpiod_set_value_cansleep(imx334->reset_gpio, 1);
usleep_range(500, 1000);
if (!IS_ERR(imx334->pwdn_gpio))
gpiod_set_value_cansleep(imx334->pwdn_gpio, 1);
/* 8192 cycles prior to first SCCB transaction */
delay_us = imx334_cal_delay(8192, imx334);
usleep_range(delay_us, delay_us * 2);
return 0;
disable_clk:
clk_disable_unprepare(imx334->xvclk);
return ret;
}
static void __imx334_power_off(struct imx334 *imx334)
{
if (!IS_ERR(imx334->pwdn_gpio))
gpiod_set_value_cansleep(imx334->pwdn_gpio, 0);
clk_disable_unprepare(imx334->xvclk);
if (!IS_ERR(imx334->reset_gpio))
gpiod_set_value_cansleep(imx334->reset_gpio, 0);
regulator_bulk_disable(IMX334_NUM_SUPPLIES, imx334->supplies);
}
static int imx334_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx334 *imx334 = to_imx334(sd);
return __imx334_power_on(imx334);
}
static int imx334_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx334 *imx334 = to_imx334(sd);
__imx334_power_off(imx334);
return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int imx334_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx334 *imx334 = to_imx334(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct imx334_mode *def_mode = &supported_modes[0];
mutex_lock(&imx334->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(&imx334->mutex);
/* No crop or compose */
return 0;
}
#endif
static int imx334_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
if (fie->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
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;
}
#define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4)
#define DST_WIDTH 3840
#define DST_HEIGHT 2160
static int imx334_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct imx334 *imx334 = to_imx334(sd);
if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {
sel->r.left = CROP_START(imx334->cur_mode->width, DST_WIDTH);
sel->r.width = DST_WIDTH;
sel->r.top = CROP_START(imx334->cur_mode->height, DST_HEIGHT);
sel->r.height = DST_HEIGHT;
return 0;
}
return -EINVAL;
}
static const struct dev_pm_ops imx334_pm_ops = {
SET_RUNTIME_PM_OPS(imx334_runtime_suspend,
imx334_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops imx334_internal_ops = {
.open = imx334_open,
};
#endif
static const struct v4l2_subdev_core_ops imx334_core_ops = {
.s_power = imx334_s_power,
.ioctl = imx334_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = imx334_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops imx334_video_ops = {
.s_stream = imx334_s_stream,
.g_frame_interval = imx334_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops imx334_pad_ops = {
.enum_mbus_code = imx334_enum_mbus_code,
.enum_frame_size = imx334_enum_frame_sizes,
.enum_frame_interval = imx334_enum_frame_interval,
.get_fmt = imx334_get_fmt,
.set_fmt = imx334_set_fmt,
.get_selection = imx334_get_selection,
.get_mbus_config = imx334_g_mbus_config,
};
static const struct v4l2_subdev_ops imx334_subdev_ops = {
.core = &imx334_core_ops,
.video = &imx334_video_ops,
.pad = &imx334_pad_ops,
};
static int imx334_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx334 *imx334 = container_of(ctrl->handler,
struct imx334, ctrl_handler);
struct i2c_client *client = imx334->client;
s64 max;
int ret = 0;
u32 shr0 = 0;
u32 vts = 0;
u32 flip = 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 = imx334->cur_mode->height + ctrl->val - 4;
__v4l2_ctrl_modify_range(imx334->exposure,
imx334->exposure->minimum, max,
imx334->exposure->step,
imx334->exposure->default_value);
break;
}
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_EXPOSURE:
shr0 = imx334->cur_vts - ctrl->val;
/* 4 least significant bits of expsoure are fractional part */
ret = imx334_write_reg(imx334->client,
IMX334_LF_EXPO_REG_H,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_H(shr0));
ret |= imx334_write_reg(imx334->client,
IMX334_LF_EXPO_REG_M,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_M(shr0));
ret |= imx334_write_reg(imx334->client,
IMX334_LF_EXPO_REG_L,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_EXP_L(shr0));
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = imx334_write_reg(imx334->client,
IMX334_REG_GAIN,
IMX334_REG_VALUE_08BIT, ctrl->val);
break;
case V4L2_CID_VBLANK:
vts = ctrl->val + imx334->cur_mode->height;
/*
* vts of hdr mode is double to correct T-line calculation.
* Restore before write to reg.
*/
if (imx334->cur_mode->hdr_mode == HDR_X2) {
vts = ((vts + 3) >> 2) * 4;
imx334->cur_vts = vts;
vts = vts >> 1;
} else {
imx334->cur_vts = vts;
}
ret = imx334_write_reg(imx334->client,
IMX334_REG_VTS_H,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_VTS_H(vts));
ret |= imx334_write_reg(imx334->client,
IMX334_REG_VTS_M,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_VTS_M(vts));
ret |= imx334_write_reg(imx334->client,
IMX334_REG_VTS_L,
IMX334_REG_VALUE_08BIT,
IMX334_FETCH_VTS_L(vts));
break;
case V4L2_CID_TEST_PATTERN:
ret = imx334_enable_test_pattern(imx334, ctrl->val);
break;
case V4L2_CID_HFLIP:
ret = imx334_write_reg(imx334->client, IMX334_HREVERSE_REG,
IMX334_REG_VALUE_08BIT, !!ctrl->val);
break;
case V4L2_CID_VFLIP:
flip = ctrl->val;
if (flip) {
ret = imx334_write_reg(imx334->client, IMX334_VREVERSE_REG,
IMX334_REG_VALUE_08BIT, !!flip);
ret |= imx334_write_reg(imx334->client, 0x3080,
IMX334_REG_VALUE_08BIT, 0xfe);
ret |= imx334_write_reg(imx334->client, 0x309b,
IMX334_REG_VALUE_08BIT, 0xfe);
} else {
ret = imx334_write_reg(imx334->client, IMX334_VREVERSE_REG,
IMX334_REG_VALUE_08BIT, !!flip);
ret |= imx334_write_reg(imx334->client, 0x3080,
IMX334_REG_VALUE_08BIT, 0x02);
ret |= imx334_write_reg(imx334->client, 0x309b,
IMX334_REG_VALUE_08BIT, 0x02);
}
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 imx334_ctrl_ops = {
.s_ctrl = imx334_set_ctrl,
};
static int imx334_initialize_controls(struct imx334 *imx334)
{
const struct imx334_mode *mode;
struct v4l2_ctrl_handler *handler;
s64 exposure_max, vblank_def;
u32 h_blank;
int ret;
s64 dst_pixel_rate = 0;
handler = &imx334->ctrl_handler;
mode = imx334->cur_mode;
ret = v4l2_ctrl_handler_init(handler, 9);
if (ret)
return ret;
handler->lock = &imx334->mutex;
imx334->link_freq = v4l2_ctrl_new_int_menu(handler, NULL,
V4L2_CID_LINK_FREQ,
2, 0, link_freq_menu_items);
dst_pixel_rate = ((u32)link_freq_menu_items[mode->mipi_freq_idx]) /
mode->bpp * 2 * IMX334_LANES;
imx334->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
V4L2_CID_PIXEL_RATE,
0, PIXEL_RATE_WITH_891M_10BIT,
1, dst_pixel_rate);
v4l2_ctrl_s_ctrl(imx334->link_freq,
mode->mipi_freq_idx);
imx334->cur_mipi_freq_idx = mode->mipi_freq_idx;
imx334->cur_vclk_freq = mode->vclk_freq;
h_blank = mode->hts_def - mode->width;
imx334->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (imx334->hblank)
imx334->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
imx334->vblank = v4l2_ctrl_new_std(handler, &imx334_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
IMX334_VTS_MAX - mode->height,
1, vblank_def);
imx334->cur_vts = mode->vts_def;
exposure_max = mode->vts_def - 4;
imx334->exposure = v4l2_ctrl_new_std(handler, &imx334_ctrl_ops,
V4L2_CID_EXPOSURE,
IMX334_EXPOSURE_MIN,
exposure_max,
IMX334_EXPOSURE_STEP,
mode->exp_def);
imx334->anal_gain = v4l2_ctrl_new_std(handler, &imx334_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN,
IMX334_GAIN_MIN,
IMX334_GAIN_MAX,
IMX334_GAIN_STEP,
IMX334_GAIN_DEFAULT);
imx334->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
&imx334_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx334_test_pattern_menu) - 1,
0, 0, imx334_test_pattern_menu);
v4l2_ctrl_new_std(handler, &imx334_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(handler, &imx334_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
if (handler->error) {
ret = handler->error;
dev_err(&imx334->client->dev,
"Failed to init controls( %d )\n", ret);
goto err_free_handler;
}
imx334->subdev.ctrl_handler = handler;
imx334->has_init_exp = false;
return 0;
err_free_handler:
v4l2_ctrl_handler_free(handler);
return ret;
}
static int imx334_check_sensor_id(struct imx334 *imx334,
struct i2c_client *client)
{
struct device *dev = &imx334->client->dev;
u32 id = 0;
int ret, i;
for (i = 0; i < 10; i++) {
ret = imx334_read_reg(client, IMX334_REG_CHIP_ID,
IMX334_REG_VALUE_08BIT, &id);
if (id == CHIP_ID)
break;
}
if (id != CHIP_ID) {
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
usleep_range(2000, 4000);
return -ENODEV;
}
dev_info(dev, "Detected imx334 id:%06x\n", CHIP_ID);
return 0;
}
static int imx334_configure_regulators(struct imx334 *imx334)
{
unsigned int i;
for (i = 0; i < IMX334_NUM_SUPPLIES; i++)
imx334->supplies[i].supply = imx334_supply_names[i];
return devm_regulator_bulk_get(&imx334->client->dev,
IMX334_NUM_SUPPLIES,
imx334->supplies);
}
static int imx334_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device_node *node = dev->of_node;
struct imx334 *imx334;
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);
imx334 = devm_kzalloc(dev, sizeof(*imx334), GFP_KERNEL);
if (!imx334)
return -ENOMEM;
of_property_read_u32(node, OF_CAMERA_HDR_MODE, &hdr_mode);
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&imx334->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&imx334->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&imx334->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&imx334->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
imx334->client = client;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
if (hdr_mode == supported_modes[i].hdr_mode) {
imx334->cur_mode = &supported_modes[i];
break;
}
}
if (i == ARRAY_SIZE(supported_modes))
imx334->cur_mode = &supported_modes[0];
imx334->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(imx334->xvclk)) {
dev_err(dev, "Failed to get xvclk\n");
return -EINVAL;
}
imx334->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(imx334->reset_gpio))
dev_warn(dev, "Failed to get reset-gpios\n");
imx334->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
if (IS_ERR(imx334->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
imx334->pinctrl = devm_pinctrl_get(dev);
if (!IS_ERR(imx334->pinctrl)) {
imx334->pins_default =
pinctrl_lookup_state(imx334->pinctrl,
OF_CAMERA_PINCTRL_STATE_DEFAULT);
if (IS_ERR(imx334->pins_default))
dev_info(dev, "could not get default pinstate\n");
imx334->pins_sleep =
pinctrl_lookup_state(imx334->pinctrl,
OF_CAMERA_PINCTRL_STATE_SLEEP);
if (IS_ERR(imx334->pins_sleep))
dev_info(dev, "could not get sleep pinstate\n");
} else {
dev_info(dev, "no pinctrl\n");
}
ret = imx334_configure_regulators(imx334);
if (ret) {
dev_err(dev, "Failed to get power regulators\n");
return ret;
}
mutex_init(&imx334->mutex);
sd = &imx334->subdev;
v4l2_i2c_subdev_init(sd, client, &imx334_subdev_ops);
ret = imx334_initialize_controls(imx334);
if (ret)
goto err_destroy_mutex;
ret = __imx334_power_on(imx334);
if (ret)
goto err_free_handler;
ret = imx334_check_sensor_id(imx334, client);
if (ret)
goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
sd->internal_ops = &imx334_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
imx334->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &imx334->pad);
if (ret < 0)
goto err_power_off;
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(imx334->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
imx334->module_index, facing,
IMX334_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:
__imx334_power_off(imx334);
err_free_handler:
v4l2_ctrl_handler_free(&imx334->ctrl_handler);
err_destroy_mutex:
mutex_destroy(&imx334->mutex);
return ret;
}
static int imx334_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx334 *imx334 = to_imx334(sd);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&imx334->ctrl_handler);
mutex_destroy(&imx334->mutex);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
__imx334_power_off(imx334);
pm_runtime_set_suspended(&client->dev);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id imx334_of_match[] = {
{ .compatible = "sony,imx334" },
{},
};
MODULE_DEVICE_TABLE(of, imx334_of_match);
#endif
static const struct i2c_device_id imx334_match_id[] = {
{ "sony,imx334", 0 },
{ },
};
static struct i2c_driver imx334_i2c_driver = {
.driver = {
.name = IMX334_NAME,
.pm = &imx334_pm_ops,
.of_match_table = of_match_ptr(imx334_of_match),
},
.probe = &imx334_probe,
.remove = &imx334_remove,
.id_table = imx334_match_id,
};
static int __init sensor_mod_init(void)
{
return i2c_add_driver(&imx334_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
i2c_del_driver(&imx334_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("Sony imx334 sensor driver");
MODULE_LICENSE("GPL v2");
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