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linux-zen-desktop/drivers/media/i2c/ov8858.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2023 Jacopo Mondi <jacopo.mondi@ideasonboard.com>
* Copyright (C) 2022 Nicholas Roth <nicholas@rothemail.net>
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
*/
#include <asm/unaligned.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mediabus.h>
#include <media/v4l2-subdev.h>
#define OV8858_LINK_FREQ 360000000U
#define OV8858_XVCLK_FREQ 24000000
#define OV8858_REG_SIZE_SHIFT 16
#define OV8858_REG_ADDR_MASK 0xffff
#define OV8858_REG_8BIT(n) ((1U << OV8858_REG_SIZE_SHIFT) | (n))
#define OV8858_REG_16BIT(n) ((2U << OV8858_REG_SIZE_SHIFT) | (n))
#define OV8858_REG_24BIT(n) ((3U << OV8858_REG_SIZE_SHIFT) | (n))
#define OV8858_REG_SC_CTRL0100 OV8858_REG_8BIT(0x0100)
#define OV8858_MODE_SW_STANDBY 0x0
#define OV8858_MODE_STREAMING 0x1
#define OV8858_REG_CHIP_ID OV8858_REG_24BIT(0x300a)
#define OV8858_CHIP_ID 0x008858
#define OV8858_REG_SUB_ID OV8858_REG_8BIT(0x302a)
#define OV8858_R1A 0xb0
#define OV8858_R2A 0xb2
#define OV8858_REG_LONG_EXPO OV8858_REG_24BIT(0x3500)
#define OV8858_EXPOSURE_MIN 4
#define OV8858_EXPOSURE_STEP 1
#define OV8858_EXPOSURE_MARGIN 4
#define OV8858_REG_LONG_GAIN OV8858_REG_16BIT(0x3508)
#define OV8858_LONG_GAIN_MIN 0x0
#define OV8858_LONG_GAIN_MAX 0x7ff
#define OV8858_LONG_GAIN_STEP 1
#define OV8858_LONG_GAIN_DEFAULT 0x80
#define OV8858_REG_LONG_DIGIGAIN OV8858_REG_16BIT(0x350a)
#define OV8858_LONG_DIGIGAIN_H_MASK 0x3fc0
#define OV8858_LONG_DIGIGAIN_L_MASK 0x3f
#define OV8858_LONG_DIGIGAIN_H_SHIFT 2
#define OV8858_LONG_DIGIGAIN_MIN 0x0
#define OV8858_LONG_DIGIGAIN_MAX 0x3fff
#define OV8858_LONG_DIGIGAIN_STEP 1
#define OV8858_LONG_DIGIGAIN_DEFAULT 0x200
#define OV8858_REG_VTS OV8858_REG_16BIT(0x380e)
#define OV8858_VTS_MAX 0x7fff
#define OV8858_REG_TEST_PATTERN OV8858_REG_8BIT(0x5e00)
#define OV8858_TEST_PATTERN_ENABLE 0x80
#define OV8858_TEST_PATTERN_DISABLE 0x0
#define REG_NULL 0xffff
static const char * const ov8858_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
"dvdd", /* Digital core power */
};
struct regval {
u16 addr;
u8 val;
};
struct regval_modes {
const struct regval *mode_2lanes;
const struct regval *mode_4lanes;
};
struct ov8858_mode {
u32 width;
u32 height;
u32 hts_def;
u32 vts_def;
u32 exp_def;
const struct regval_modes reg_modes;
};
struct ov8858 {
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwdn_gpio;
struct regulator_bulk_data supplies[ARRAY_SIZE(ov8858_supply_names)];
struct v4l2_subdev subdev;
struct media_pad pad;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *exposure;
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *vblank;
const struct regval *global_regs;
unsigned int num_lanes;
};
static inline struct ov8858 *sd_to_ov8858(struct v4l2_subdev *sd)
{
return container_of(sd, struct ov8858, subdev);
}
static const struct regval ov8858_global_regs_r1a[] = {
{0x0100, 0x00},
{0x0100, 0x00},
{0x0100, 0x00},
{0x0100, 0x00},
{0x0302, 0x1e},
{0x0303, 0x00},
{0x0304, 0x03},
{0x030e, 0x00},
{0x030f, 0x09},
{0x0312, 0x01},
{0x031e, 0x0c},
{0x3600, 0x00},
{0x3601, 0x00},
{0x3602, 0x00},
{0x3603, 0x00},
{0x3604, 0x22},
{0x3605, 0x30},
{0x3606, 0x00},
{0x3607, 0x20},
{0x3608, 0x11},
{0x3609, 0x28},
{0x360a, 0x00},
{0x360b, 0x06},
{0x360c, 0xdc},
{0x360d, 0x40},
{0x360e, 0x0c},
{0x360f, 0x20},
{0x3610, 0x07},
{0x3611, 0x20},
{0x3612, 0x88},
{0x3613, 0x80},
{0x3614, 0x58},
{0x3615, 0x00},
{0x3616, 0x4a},
{0x3617, 0xb0},
{0x3618, 0x56},
{0x3619, 0x70},
{0x361a, 0x99},
{0x361b, 0x00},
{0x361c, 0x07},
{0x361d, 0x00},
{0x361e, 0x00},
{0x361f, 0x00},
{0x3638, 0xff},
{0x3633, 0x0c},
{0x3634, 0x0c},
{0x3635, 0x0c},
{0x3636, 0x0c},
{0x3645, 0x13},
{0x3646, 0x83},
{0x364a, 0x07},
{0x3015, 0x01},
{0x3018, 0x32},
{0x3020, 0x93},
{0x3022, 0x01},
{0x3031, 0x0a},
{0x3034, 0x00},
{0x3106, 0x01},
{0x3305, 0xf1},
{0x3308, 0x00},
{0x3309, 0x28},
{0x330a, 0x00},
{0x330b, 0x20},
{0x330c, 0x00},
{0x330d, 0x00},
{0x330e, 0x00},
{0x330f, 0x40},
{0x3307, 0x04},
{0x3500, 0x00},
{0x3501, 0x4d},
{0x3502, 0x40},
{0x3503, 0x00},
{0x3505, 0x80},
{0x3508, 0x04},
{0x3509, 0x00},
{0x350c, 0x00},
{0x350d, 0x80},
{0x3510, 0x00},
{0x3511, 0x02},
{0x3512, 0x00},
{0x3700, 0x18},
{0x3701, 0x0c},
{0x3702, 0x28},
{0x3703, 0x19},
{0x3704, 0x14},
{0x3705, 0x00},
{0x3706, 0x35},
{0x3707, 0x04},
{0x3708, 0x24},
{0x3709, 0x33},
{0x370a, 0x00},
{0x370b, 0xb5},
{0x370c, 0x04},
{0x3718, 0x12},
{0x3719, 0x31},
{0x3712, 0x42},
{0x3714, 0x24},
{0x371e, 0x19},
{0x371f, 0x40},
{0x3720, 0x05},
{0x3721, 0x05},
{0x3724, 0x06},
{0x3725, 0x01},
{0x3726, 0x06},
{0x3728, 0x05},
{0x3729, 0x02},
{0x372a, 0x03},
{0x372b, 0x53},
{0x372c, 0xa3},
{0x372d, 0x53},
{0x372e, 0x06},
{0x372f, 0x10},
{0x3730, 0x01},
{0x3731, 0x06},
{0x3732, 0x14},
{0x3733, 0x10},
{0x3734, 0x40},
{0x3736, 0x20},
{0x373a, 0x05},
{0x373b, 0x06},
{0x373c, 0x0a},
{0x373e, 0x03},
{0x3755, 0x10},
{0x3758, 0x00},
{0x3759, 0x4c},
{0x375a, 0x06},
{0x375b, 0x13},
{0x375c, 0x20},
{0x375d, 0x02},
{0x375e, 0x00},
{0x375f, 0x14},
{0x3768, 0x22},
{0x3769, 0x44},
{0x376a, 0x44},
{0x3761, 0x00},
{0x3762, 0x00},
{0x3763, 0x00},
{0x3766, 0xff},
{0x376b, 0x00},
{0x3772, 0x23},
{0x3773, 0x02},
{0x3774, 0x16},
{0x3775, 0x12},
{0x3776, 0x04},
{0x3777, 0x00},
{0x3778, 0x1b},
{0x37a0, 0x44},
{0x37a1, 0x3d},
{0x37a2, 0x3d},
{0x37a3, 0x00},
{0x37a4, 0x00},
{0x37a5, 0x00},
{0x37a6, 0x00},
{0x37a7, 0x44},
{0x37a8, 0x4c},
{0x37a9, 0x4c},
{0x3760, 0x00},
{0x376f, 0x01},
{0x37aa, 0x44},
{0x37ab, 0x2e},
{0x37ac, 0x2e},
{0x37ad, 0x33},
{0x37ae, 0x0d},
{0x37af, 0x0d},
{0x37b0, 0x00},
{0x37b1, 0x00},
{0x37b2, 0x00},
{0x37b3, 0x42},
{0x37b4, 0x42},
{0x37b5, 0x33},
{0x37b6, 0x00},
{0x37b7, 0x00},
{0x37b8, 0x00},
{0x37b9, 0xff},
{0x3800, 0x00},
{0x3801, 0x0c},
{0x3802, 0x00},
{0x3803, 0x0c},
{0x3804, 0x0c},
{0x3805, 0xd3},
{0x3806, 0x09},
{0x3807, 0xa3},
{0x3808, 0x06},
{0x3809, 0x60},
{0x380a, 0x04},
{0x380b, 0xc8},
{0x380c, 0x07},
{0x380d, 0x88},
{0x380e, 0x04},
{0x380f, 0xdc},
{0x3810, 0x00},
{0x3811, 0x04},
{0x3813, 0x02},
{0x3814, 0x03},
{0x3815, 0x01},
{0x3820, 0x00},
{0x3821, 0x67},
{0x382a, 0x03},
{0x382b, 0x01},
{0x3830, 0x08},
{0x3836, 0x02},
{0x3837, 0x18},
{0x3841, 0xff},
{0x3846, 0x48},
{0x3d85, 0x14},
{0x3f08, 0x08},
{0x3f0a, 0x80},
{0x4000, 0xf1},
{0x4001, 0x10},
{0x4005, 0x10},
{0x4002, 0x27},
{0x4009, 0x81},
{0x400b, 0x0c},
{0x401b, 0x00},
{0x401d, 0x00},
{0x4020, 0x00},
{0x4021, 0x04},
{0x4022, 0x04},
{0x4023, 0xb9},
{0x4024, 0x05},
{0x4025, 0x2a},
{0x4026, 0x05},
{0x4027, 0x2b},
{0x4028, 0x00},
{0x4029, 0x02},
{0x402a, 0x04},
{0x402b, 0x04},
{0x402c, 0x02},
{0x402d, 0x02},
{0x402e, 0x08},
{0x402f, 0x02},
{0x401f, 0x00},
{0x4034, 0x3f},
{0x403d, 0x04},
{0x4300, 0xff},
{0x4301, 0x00},
{0x4302, 0x0f},
{0x4316, 0x00},
{0x4500, 0x38},
{0x4503, 0x18},
{0x4600, 0x00},
{0x4601, 0xcb},
{0x481f, 0x32},
{0x4837, 0x16},
{0x4850, 0x10},
{0x4851, 0x32},
{0x4b00, 0x2a},
{0x4b0d, 0x00},
{0x4d00, 0x04},
{0x4d01, 0x18},
{0x4d02, 0xc3},
{0x4d03, 0xff},
{0x4d04, 0xff},
{0x4d05, 0xff},
{0x5000, 0x7e},
{0x5001, 0x01},
{0x5002, 0x08},
{0x5003, 0x20},
{0x5046, 0x12},
{0x5901, 0x00},
{0x5e00, 0x00},
{0x5e01, 0x41},
{0x382d, 0x7f},
{0x4825, 0x3a},
{0x4826, 0x40},
{0x4808, 0x25},
{REG_NULL, 0x00},
};
static const struct regval ov8858_global_regs_r2a_2lane[] = {
/*
* MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz.
* v00_01_00 (05/29/2014) : initial setting
* AM19 : 3617 <- 0xC0
* AM20 : change FWC_6K_EN to be default 0x3618=0x5a
*/
{0x0103, 0x01}, /* software reset */
{0x0100, 0x00}, /* software standby */
{0x0302, 0x1e}, /* pll1_multi */
{0x0303, 0x00}, /* pll1_divm */
{0x0304, 0x03}, /* pll1_div_mipi */
{0x030e, 0x02}, /* pll2_rdiv */
{0x030f, 0x04}, /* pll2_divsp */
{0x0312, 0x03}, /* pll2_pre_div0, pll2_r_divdac */
{0x031e, 0x0c}, /* pll1_no_lat */
{0x3600, 0x00},
{0x3601, 0x00},
{0x3602, 0x00},
{0x3603, 0x00},
{0x3604, 0x22},
{0x3605, 0x20},
{0x3606, 0x00},
{0x3607, 0x20},
{0x3608, 0x11},
{0x3609, 0x28},
{0x360a, 0x00},
{0x360b, 0x05},
{0x360c, 0xd4},
{0x360d, 0x40},
{0x360e, 0x0c},
{0x360f, 0x20},
{0x3610, 0x07},
{0x3611, 0x20},
{0x3612, 0x88},
{0x3613, 0x80},
{0x3614, 0x58},
{0x3615, 0x00},
{0x3616, 0x4a},
{0x3617, 0x90},
{0x3618, 0x5a},
{0x3619, 0x70},
{0x361a, 0x99},
{0x361b, 0x0a},
{0x361c, 0x07},
{0x361d, 0x00},
{0x361e, 0x00},
{0x361f, 0x00},
{0x3638, 0xff},
{0x3633, 0x0f},
{0x3634, 0x0f},
{0x3635, 0x0f},
{0x3636, 0x12},
{0x3645, 0x13},
{0x3646, 0x83},
{0x364a, 0x07},
{0x3015, 0x00},
{0x3018, 0x32}, /* MIPI 2 lane */
{0x3020, 0x93}, /* Clock switch output normal, pclk_div =/1 */
{0x3022, 0x01}, /* pd_mipi enable when rst_sync */
{0x3031, 0x0a}, /* MIPI 10-bit mode */
{0x3034, 0x00},
{0x3106, 0x01}, /* sclk_div, sclk_pre_div */
{0x3305, 0xf1},
{0x3308, 0x00},
{0x3309, 0x28},
{0x330a, 0x00},
{0x330b, 0x20},
{0x330c, 0x00},
{0x330d, 0x00},
{0x330e, 0x00},
{0x330f, 0x40},
{0x3307, 0x04},
{0x3500, 0x00}, /* exposure H */
{0x3501, 0x4d}, /* exposure M */
{0x3502, 0x40}, /* exposure L */
{0x3503, 0x80}, /* gain delay ?, exposure delay 1 frame, real gain */
{0x3505, 0x80}, /* gain option */
{0x3508, 0x02}, /* gain H */
{0x3509, 0x00}, /* gain L */
{0x350c, 0x00}, /* short gain H */
{0x350d, 0x80}, /* short gain L */
{0x3510, 0x00}, /* short exposure H */
{0x3511, 0x02}, /* short exposure M */
{0x3512, 0x00}, /* short exposure L */
{0x3700, 0x18},
{0x3701, 0x0c},
{0x3702, 0x28},
{0x3703, 0x19},
{0x3704, 0x14},
{0x3705, 0x00},
{0x3706, 0x82},
{0x3707, 0x04},
{0x3708, 0x24},
{0x3709, 0x33},
{0x370a, 0x01},
{0x370b, 0x82},
{0x370c, 0x04},
{0x3718, 0x12},
{0x3719, 0x31},
{0x3712, 0x42},
{0x3714, 0x24},
{0x371e, 0x19},
{0x371f, 0x40},
{0x3720, 0x05},
{0x3721, 0x05},
{0x3724, 0x06},
{0x3725, 0x01},
{0x3726, 0x06},
{0x3728, 0x05},
{0x3729, 0x02},
{0x372a, 0x03},
{0x372b, 0x53},
{0x372c, 0xa3},
{0x372d, 0x53},
{0x372e, 0x06},
{0x372f, 0x10},
{0x3730, 0x01},
{0x3731, 0x06},
{0x3732, 0x14},
{0x3733, 0x10},
{0x3734, 0x40},
{0x3736, 0x20},
{0x373a, 0x05},
{0x373b, 0x06},
{0x373c, 0x0a},
{0x373e, 0x03},
{0x3750, 0x0a},
{0x3751, 0x0e},
{0x3755, 0x10},
{0x3758, 0x00},
{0x3759, 0x4c},
{0x375a, 0x06},
{0x375b, 0x13},
{0x375c, 0x20},
{0x375d, 0x02},
{0x375e, 0x00},
{0x375f, 0x14},
{0x3768, 0x22},
{0x3769, 0x44},
{0x376a, 0x44},
{0x3761, 0x00},
{0x3762, 0x00},
{0x3763, 0x00},
{0x3766, 0xff},
{0x376b, 0x00},
{0x3772, 0x23},
{0x3773, 0x02},
{0x3774, 0x16},
{0x3775, 0x12},
{0x3776, 0x04},
{0x3777, 0x00},
{0x3778, 0x17},
{0x37a0, 0x44},
{0x37a1, 0x3d},
{0x37a2, 0x3d},
{0x37a3, 0x00},
{0x37a4, 0x00},
{0x37a5, 0x00},
{0x37a6, 0x00},
{0x37a7, 0x44},
{0x37a8, 0x4c},
{0x37a9, 0x4c},
{0x3760, 0x00},
{0x376f, 0x01},
{0x37aa, 0x44},
{0x37ab, 0x2e},
{0x37ac, 0x2e},
{0x37ad, 0x33},
{0x37ae, 0x0d},
{0x37af, 0x0d},
{0x37b0, 0x00},
{0x37b1, 0x00},
{0x37b2, 0x00},
{0x37b3, 0x42},
{0x37b4, 0x42},
{0x37b5, 0x31},
{0x37b6, 0x00},
{0x37b7, 0x00},
{0x37b8, 0x00},
{0x37b9, 0xff},
{0x3800, 0x00}, /* x start H */
{0x3801, 0x0c}, /* x start L */
{0x3802, 0x00}, /* y start H */
{0x3803, 0x0c}, /* y start L */
{0x3804, 0x0c}, /* x end H */
{0x3805, 0xd3}, /* x end L */
{0x3806, 0x09}, /* y end H */
{0x3807, 0xa3}, /* y end L */
{0x3808, 0x06}, /* x output size H */
{0x3809, 0x60}, /* x output size L */
{0x380a, 0x04}, /* y output size H */
{0x380b, 0xc8}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x88}, /* HTS L */
{0x380e, 0x04}, /* VTS H */
{0x380f, 0xdc}, /* VTS L */
{0x3810, 0x00}, /* ISP x win H */
{0x3811, 0x04}, /* ISP x win L */
{0x3813, 0x02}, /* ISP y win L */
{0x3814, 0x03}, /* x odd inc */
{0x3815, 0x01}, /* x even inc */
{0x3820, 0x00}, /* vflip off */
{0x3821, 0x67}, /* mirror on, bin on */
{0x382a, 0x03}, /* y odd inc */
{0x382b, 0x01}, /* y even inc */
{0x3830, 0x08},
{0x3836, 0x02},
{0x3837, 0x18},
{0x3841, 0xff}, /* window auto size enable */
{0x3846, 0x48},
{0x3d85, 0x16}, /* OTP power up load data enable with BIST */
{0x3d8c, 0x73}, /* OTP setting start High */
{0x3d8d, 0xde}, /* OTP setting start Low */
{0x3f08, 0x08},
{0x3f0a, 0x00},
{0x4000, 0xf1}, /* out_range_trig, format_chg_trig */
{0x4001, 0x10}, /* total 128 black column */
{0x4005, 0x10}, /* BLC target L */
{0x4002, 0x27}, /* value used to limit BLC offset */
{0x4009, 0x81}, /* final BLC offset limitation enable */
{0x400b, 0x0c}, /* DCBLC on, DCBLC manual mode on */
{0x401b, 0x00}, /* zero line R coefficient */
{0x401d, 0x00}, /* zoro line T coefficient */
{0x4020, 0x00}, /* Anchor left start H */
{0x4021, 0x04}, /* Anchor left start L */
{0x4022, 0x06}, /* Anchor left end H */
{0x4023, 0x00}, /* Anchor left end L */
{0x4024, 0x0f}, /* Anchor right start H */
{0x4025, 0x2a}, /* Anchor right start L */
{0x4026, 0x0f}, /* Anchor right end H */
{0x4027, 0x2b}, /* Anchor right end L */
{0x4028, 0x00}, /* top zero line start */
{0x4029, 0x02}, /* top zero line number */
{0x402a, 0x04}, /* top black line start */
{0x402b, 0x04}, /* top black line number */
{0x402c, 0x00}, /* bottom zero line start */
{0x402d, 0x02}, /* bottom zoro line number */
{0x402e, 0x04}, /* bottom black line start */
{0x402f, 0x04}, /* bottom black line number */
{0x401f, 0x00}, /* interpolation x/y disable, Anchor one disable */
{0x4034, 0x3f},
{0x403d, 0x04}, /* md_precision_en */
{0x4300, 0xff}, /* clip max H */
{0x4301, 0x00}, /* clip min H */
{0x4302, 0x0f}, /* clip min L, clip max L */
{0x4316, 0x00},
{0x4500, 0x58},
{0x4503, 0x18},
{0x4600, 0x00},
{0x4601, 0xcb},
{0x481f, 0x32}, /* clk prepare min */
{0x4837, 0x16}, /* global timing */
{0x4850, 0x10}, /* lane 1 = 1, lane 0 = 0 */
{0x4851, 0x32}, /* lane 3 = 3, lane 2 = 2 */
{0x4b00, 0x2a},
{0x4b0d, 0x00},
{0x4d00, 0x04}, /* temperature sensor */
{0x4d01, 0x18},
{0x4d02, 0xc3},
{0x4d03, 0xff},
{0x4d04, 0xff},
{0x4d05, 0xff}, /* temperature sensor */
{0x5000, 0xfe}, /* lenc on, slave/master AWB gain/statistics enable */
{0x5001, 0x01}, /* BLC on */
{0x5002, 0x08}, /* H scale off, WBMATCH off, OTP_DPC */
{0x5003, 0x20}, /* DPC_DBC buffer control enable, WB */
{0x501e, 0x93}, /* enable digital gain */
{0x5046, 0x12},
{0x5780, 0x3e}, /* DPC */
{0x5781, 0x0f},
{0x5782, 0x44},
{0x5783, 0x02},
{0x5784, 0x01},
{0x5785, 0x00},
{0x5786, 0x00},
{0x5787, 0x04},
{0x5788, 0x02},
{0x5789, 0x0f},
{0x578a, 0xfd},
{0x578b, 0xf5},
{0x578c, 0xf5},
{0x578d, 0x03},
{0x578e, 0x08},
{0x578f, 0x0c},
{0x5790, 0x08},
{0x5791, 0x04},
{0x5792, 0x00},
{0x5793, 0x52},
{0x5794, 0xa3}, /* DPC */
{0x5871, 0x0d}, /* Lenc */
{0x5870, 0x18},
{0x586e, 0x10},
{0x586f, 0x08},
{0x58f7, 0x01},
{0x58f8, 0x3d}, /* Lenc */
{0x5901, 0x00}, /* H skip off, V skip off */
{0x5b00, 0x02}, /* OTP DPC start address */
{0x5b01, 0x10}, /* OTP DPC start address */
{0x5b02, 0x03}, /* OTP DPC end address */
{0x5b03, 0xcf}, /* OTP DPC end address */
{0x5b05, 0x6c}, /* recover method = 2b11, */
{0x5e00, 0x00}, /* use 0x3ff to test pattern off */
{0x5e01, 0x41}, /* window cut enable */
{0x382d, 0x7f},
{0x4825, 0x3a}, /* lpx_p_min */
{0x4826, 0x40}, /* hs_prepare_min */
{0x4808, 0x25}, /* wake up delay in 1/1024 s */
{0x3763, 0x18},
{0x3768, 0xcc},
{0x470b, 0x28},
{0x4202, 0x00},
{0x400d, 0x10}, /* BLC offset trigger L */
{0x4040, 0x04}, /* BLC gain th2 */
{0x403e, 0x04}, /* BLC gain th1 */
{0x4041, 0xc6}, /* BLC */
{0x3007, 0x80},
{0x400a, 0x01},
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* max_framerate 30fps
* mipi_datarate per lane 720Mbps
*/
static const struct regval ov8858_1632x1224_regs_2lane[] = {
/*
* MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz.
* v00_01_00 (05/29/2014) : initial setting
* AM19 : 3617 <- 0xC0
* AM20 : change FWC_6K_EN to be default 0x3618=0x5a
*/
{0x0100, 0x00},
{0x3501, 0x4d}, /* exposure M */
{0x3502, 0x40}, /* exposure L */
{0x3778, 0x17},
{0x3808, 0x06}, /* x output size H */
{0x3809, 0x60}, /* x output size L */
{0x380a, 0x04}, /* y output size H */
{0x380b, 0xc8}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x88}, /* HTS L */
{0x380e, 0x04}, /* VTS H */
{0x380f, 0xdc}, /* VTS L */
{0x3814, 0x03}, /* x odd inc */
{0x3821, 0x67}, /* mirror on, bin on */
{0x382a, 0x03}, /* y odd inc */
{0x3830, 0x08},
{0x3836, 0x02},
{0x3f0a, 0x00},
{0x4001, 0x10}, /* total 128 black column */
{0x4022, 0x06}, /* Anchor left end H */
{0x4023, 0x00}, /* Anchor left end L */
{0x4025, 0x2a}, /* Anchor right start L */
{0x4027, 0x2b}, /* Anchor right end L */
{0x402b, 0x04}, /* top black line number */
{0x402f, 0x04}, /* bottom black line number */
{0x4500, 0x58},
{0x4600, 0x00},
{0x4601, 0xcb},
{0x382d, 0x7f},
{0x0100, 0x01},
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* max_framerate 15fps
* mipi_datarate per lane 720Mbps
*/
static const struct regval ov8858_3264x2448_regs_2lane[] = {
{0x0100, 0x00},
{0x3501, 0x9a}, /* exposure M */
{0x3502, 0x20}, /* exposure L */
{0x3778, 0x1a},
{0x3808, 0x0c}, /* x output size H */
{0x3809, 0xc0}, /* x output size L */
{0x380a, 0x09}, /* y output size H */
{0x380b, 0x90}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x94}, /* HTS L */
{0x380e, 0x09}, /* VTS H */
{0x380f, 0xaa}, /* VTS L */
{0x3814, 0x01}, /* x odd inc */
{0x3821, 0x46}, /* mirror on, bin off */
{0x382a, 0x01}, /* y odd inc */
{0x3830, 0x06},
{0x3836, 0x01},
{0x3f0a, 0x00},
{0x4001, 0x00}, /* total 256 black column */
{0x4022, 0x0c}, /* Anchor left end H */
{0x4023, 0x60}, /* Anchor left end L */
{0x4025, 0x36}, /* Anchor right start L */
{0x4027, 0x37}, /* Anchor right end L */
{0x402b, 0x08}, /* top black line number */
{0x402f, 0x08}, /* bottom black line number */
{0x4500, 0x58},
{0x4600, 0x01},
{0x4601, 0x97},
{0x382d, 0xff},
{REG_NULL, 0x00},
};
static const struct regval ov8858_global_regs_r2a_4lane[] = {
/*
* MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz.
* v00_01_00 (05/29/2014) : initial setting
* AM19 : 3617 <- 0xC0
* AM20 : change FWC_6K_EN to be default 0x3618=0x5a
*/
{0x0103, 0x01}, /* software reset for OVTATool only */
{0x0103, 0x01}, /* software reset */
{0x0100, 0x00}, /* software standby */
{0x0302, 0x1e}, /* pll1_multi */
{0x0303, 0x00}, /* pll1_divm */
{0x0304, 0x03}, /* pll1_div_mipi */
{0x030e, 0x00}, /* pll2_rdiv */
{0x030f, 0x04}, /* pll2_divsp */
{0x0312, 0x01}, /* pll2_pre_div0, pll2_r_divdac */
{0x031e, 0x0c}, /* pll1_no_lat */
{0x3600, 0x00},
{0x3601, 0x00},
{0x3602, 0x00},
{0x3603, 0x00},
{0x3604, 0x22},
{0x3605, 0x20},
{0x3606, 0x00},
{0x3607, 0x20},
{0x3608, 0x11},
{0x3609, 0x28},
{0x360a, 0x00},
{0x360b, 0x05},
{0x360c, 0xd4},
{0x360d, 0x40},
{0x360e, 0x0c},
{0x360f, 0x20},
{0x3610, 0x07},
{0x3611, 0x20},
{0x3612, 0x88},
{0x3613, 0x80},
{0x3614, 0x58},
{0x3615, 0x00},
{0x3616, 0x4a},
{0x3617, 0x90},
{0x3618, 0x5a},
{0x3619, 0x70},
{0x361a, 0x99},
{0x361b, 0x0a},
{0x361c, 0x07},
{0x361d, 0x00},
{0x361e, 0x00},
{0x361f, 0x00},
{0x3638, 0xff},
{0x3633, 0x0f},
{0x3634, 0x0f},
{0x3635, 0x0f},
{0x3636, 0x12},
{0x3645, 0x13},
{0x3646, 0x83},
{0x364a, 0x07},
{0x3015, 0x01},
{0x3018, 0x72}, /* MIPI 4 lane */
{0x3020, 0x93}, /* Clock switch output normal, pclk_div =/1 */
{0x3022, 0x01}, /* pd_mipi enable when rst_sync */
{0x3031, 0x0a}, /* MIPI 10-bit mode */
{0x3034, 0x00},
{0x3106, 0x01}, /* sclk_div, sclk_pre_div */
{0x3305, 0xf1},
{0x3308, 0x00},
{0x3309, 0x28},
{0x330a, 0x00},
{0x330b, 0x20},
{0x330c, 0x00},
{0x330d, 0x00},
{0x330e, 0x00},
{0x330f, 0x40},
{0x3307, 0x04},
{0x3500, 0x00}, /* exposure H */
{0x3501, 0x4d}, /* exposure M */
{0x3502, 0x40}, /* exposure L */
{0x3503, 0x80}, /* gain delay ?, exposure delay 1 frame, real gain */
{0x3505, 0x80}, /* gain option */
{0x3508, 0x02}, /* gain H */
{0x3509, 0x00}, /* gain L */
{0x350c, 0x00}, /* short gain H */
{0x350d, 0x80}, /* short gain L */
{0x3510, 0x00}, /* short exposure H */
{0x3511, 0x02}, /* short exposure M */
{0x3512, 0x00}, /* short exposure L */
{0x3700, 0x30},
{0x3701, 0x18},
{0x3702, 0x50},
{0x3703, 0x32},
{0x3704, 0x28},
{0x3705, 0x00},
{0x3706, 0x82},
{0x3707, 0x08},
{0x3708, 0x48},
{0x3709, 0x66},
{0x370a, 0x01},
{0x370b, 0x82},
{0x370c, 0x07},
{0x3718, 0x14},
{0x3719, 0x31},
{0x3712, 0x44},
{0x3714, 0x24},
{0x371e, 0x31},
{0x371f, 0x7f},
{0x3720, 0x0a},
{0x3721, 0x0a},
{0x3724, 0x0c},
{0x3725, 0x02},
{0x3726, 0x0c},
{0x3728, 0x0a},
{0x3729, 0x03},
{0x372a, 0x06},
{0x372b, 0xa6},
{0x372c, 0xa6},
{0x372d, 0xa6},
{0x372e, 0x0c},
{0x372f, 0x20},
{0x3730, 0x02},
{0x3731, 0x0c},
{0x3732, 0x28},
{0x3733, 0x10},
{0x3734, 0x40},
{0x3736, 0x30},
{0x373a, 0x0a},
{0x373b, 0x0b},
{0x373c, 0x14},
{0x373e, 0x06},
{0x3750, 0x0a},
{0x3751, 0x0e},
{0x3755, 0x10},
{0x3758, 0x00},
{0x3759, 0x4c},
{0x375a, 0x0c},
{0x375b, 0x26},
{0x375c, 0x20},
{0x375d, 0x04},
{0x375e, 0x00},
{0x375f, 0x28},
{0x3768, 0x22},
{0x3769, 0x44},
{0x376a, 0x44},
{0x3761, 0x00},
{0x3762, 0x00},
{0x3763, 0x00},
{0x3766, 0xff},
{0x376b, 0x00},
{0x3772, 0x46},
{0x3773, 0x04},
{0x3774, 0x2c},
{0x3775, 0x13},
{0x3776, 0x08},
{0x3777, 0x00},
{0x3778, 0x17},
{0x37a0, 0x88},
{0x37a1, 0x7a},
{0x37a2, 0x7a},
{0x37a3, 0x00},
{0x37a4, 0x00},
{0x37a5, 0x00},
{0x37a6, 0x00},
{0x37a7, 0x88},
{0x37a8, 0x98},
{0x37a9, 0x98},
{0x3760, 0x00},
{0x376f, 0x01},
{0x37aa, 0x88},
{0x37ab, 0x5c},
{0x37ac, 0x5c},
{0x37ad, 0x55},
{0x37ae, 0x19},
{0x37af, 0x19},
{0x37b0, 0x00},
{0x37b1, 0x00},
{0x37b2, 0x00},
{0x37b3, 0x84},
{0x37b4, 0x84},
{0x37b5, 0x60},
{0x37b6, 0x00},
{0x37b7, 0x00},
{0x37b8, 0x00},
{0x37b9, 0xff},
{0x3800, 0x00}, /* x start H */
{0x3801, 0x0c}, /* x start L */
{0x3802, 0x00}, /* y start H */
{0x3803, 0x0c}, /* y start L */
{0x3804, 0x0c}, /* x end H */
{0x3805, 0xd3}, /* x end L */
{0x3806, 0x09}, /* y end H */
{0x3807, 0xa3}, /* y end L */
{0x3808, 0x06}, /* x output size H */
{0x3809, 0x60}, /* x output size L */
{0x380a, 0x04}, /* y output size H */
{0x380b, 0xc8}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x88}, /* HTS L */
{0x380e, 0x04}, /* VTS H */
{0x380f, 0xdc}, /* VTS L */
{0x3810, 0x00}, /* ISP x win H */
{0x3811, 0x04}, /* ISP x win L */
{0x3813, 0x02}, /* ISP y win L */
{0x3814, 0x03}, /* x odd inc */
{0x3815, 0x01}, /* x even inc */
{0x3820, 0x00}, /* vflip off */
{0x3821, 0x67}, /* mirror on, bin o */
{0x382a, 0x03}, /* y odd inc */
{0x382b, 0x01}, /* y even inc */
{0x3830, 0x08},
{0x3836, 0x02},
{0x3837, 0x18},
{0x3841, 0xff}, /* window auto size enable */
{0x3846, 0x48},
{0x3d85, 0x16}, /* OTP power up load data/setting enable */
{0x3d8c, 0x73}, /* OTP setting start High */
{0x3d8d, 0xde}, /* OTP setting start Low */
{0x3f08, 0x10},
{0x3f0a, 0x00},
{0x4000, 0xf1}, /* out_range/format_chg/gain/exp_chg trig enable */
{0x4001, 0x10}, /* total 128 black column */
{0x4005, 0x10}, /* BLC target L */
{0x4002, 0x27}, /* value used to limit BLC offset */
{0x4009, 0x81}, /* final BLC offset limitation enable */
{0x400b, 0x0c}, /* DCBLC on, DCBLC manual mode on */
{0x401b, 0x00}, /* zero line R coefficient */
{0x401d, 0x00}, /* zoro line T coefficient */
{0x4020, 0x00}, /* Anchor left start H */
{0x4021, 0x04}, /* Anchor left start L */
{0x4022, 0x06}, /* Anchor left end H */
{0x4023, 0x00}, /* Anchor left end L */
{0x4024, 0x0f}, /* Anchor right start H */
{0x4025, 0x2a}, /* Anchor right start L */
{0x4026, 0x0f}, /* Anchor right end H */
{0x4027, 0x2b}, /* Anchor right end L */
{0x4028, 0x00}, /* top zero line start */
{0x4029, 0x02}, /* top zero line number */
{0x402a, 0x04}, /* top black line start */
{0x402b, 0x04}, /* top black line number */
{0x402c, 0x00}, /* bottom zero line start */
{0x402d, 0x02}, /* bottom zoro line number */
{0x402e, 0x04}, /* bottom black line start */
{0x402f, 0x04}, /* bottom black line number */
{0x401f, 0x00}, /* interpolation x/y disable, Anchor one disable */
{0x4034, 0x3f},
{0x403d, 0x04}, /* md_precision_en */
{0x4300, 0xff}, /* clip max H */
{0x4301, 0x00}, /* clip min H */
{0x4302, 0x0f}, /* clip min L, clip max L */
{0x4316, 0x00},
{0x4500, 0x58},
{0x4503, 0x18},
{0x4600, 0x00},
{0x4601, 0xcb},
{0x481f, 0x32}, /* clk prepare min */
{0x4837, 0x16}, /* global timing */
{0x4850, 0x10}, /* lane 1 = 1, lane 0 = 0 */
{0x4851, 0x32}, /* lane 3 = 3, lane 2 = 2 */
{0x4b00, 0x2a},
{0x4b0d, 0x00},
{0x4d00, 0x04}, /* temperature sensor */
{0x4d01, 0x18},
{0x4d02, 0xc3},
{0x4d03, 0xff},
{0x4d04, 0xff},
{0x4d05, 0xff}, /* temperature sensor */
{0x5000, 0xfe}, /* lenc on, slave/master AWB gain/statistics enable */
{0x5001, 0x01}, /* BLC on */
{0x5002, 0x08}, /* WBMATCH sensor's gain, H scale/WBMATCH/OTP_DPC off */
{0x5003, 0x20}, /* DPC_DBC buffer control enable, WB */
{0x501e, 0x93}, /* enable digital gain */
{0x5046, 0x12},
{0x5780, 0x3e}, /* DPC */
{0x5781, 0x0f},
{0x5782, 0x44},
{0x5783, 0x02},
{0x5784, 0x01},
{0x5785, 0x00},
{0x5786, 0x00},
{0x5787, 0x04},
{0x5788, 0x02},
{0x5789, 0x0f},
{0x578a, 0xfd},
{0x578b, 0xf5},
{0x578c, 0xf5},
{0x578d, 0x03},
{0x578e, 0x08},
{0x578f, 0x0c},
{0x5790, 0x08},
{0x5791, 0x04},
{0x5792, 0x00},
{0x5793, 0x52},
{0x5794, 0xa3}, /* DPC */
{0x5871, 0x0d}, /* Lenc */
{0x5870, 0x18},
{0x586e, 0x10},
{0x586f, 0x08},
{0x58f7, 0x01},
{0x58f8, 0x3d}, /* Lenc */
{0x5901, 0x00}, /* H skip off, V skip off */
{0x5b00, 0x02}, /* OTP DPC start address */
{0x5b01, 0x10}, /* OTP DPC start address */
{0x5b02, 0x03}, /* OTP DPC end address */
{0x5b03, 0xcf}, /* OTP DPC end address */
{0x5b05, 0x6c}, /* recover method = 2b11 */
{0x5e00, 0x00}, /* use 0x3ff to test pattern off */
{0x5e01, 0x41}, /* window cut enable */
{0x382d, 0x7f},
{0x4825, 0x3a}, /* lpx_p_min */
{0x4826, 0x40}, /* hs_prepare_min */
{0x4808, 0x25}, /* wake up delay in 1/1024 s */
{0x3763, 0x18},
{0x3768, 0xcc},
{0x470b, 0x28},
{0x4202, 0x00},
{0x400d, 0x10}, /* BLC offset trigger L */
{0x4040, 0x04}, /* BLC gain th2 */
{0x403e, 0x04}, /* BLC gain th1 */
{0x4041, 0xc6}, /* BLC */
{0x3007, 0x80},
{0x400a, 0x01},
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* max_framerate 60fps
* mipi_datarate per lane 720Mbps
*/
static const struct regval ov8858_1632x1224_regs_4lane[] = {
{0x0100, 0x00},
{0x3501, 0x4d}, /* exposure M */
{0x3502, 0x40}, /* exposure L */
{0x3808, 0x06}, /* x output size H */
{0x3809, 0x60}, /* x output size L */
{0x380a, 0x04}, /* y output size H */
{0x380b, 0xc8}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x88}, /* HTS L */
{0x380e, 0x04}, /* VTS H */
{0x380f, 0xdc}, /* VTS L */
{0x3814, 0x03}, /* x odd inc */
{0x3821, 0x67}, /* mirror on, bin on */
{0x382a, 0x03}, /* y odd inc */
{0x3830, 0x08},
{0x3836, 0x02},
{0x3f0a, 0x00},
{0x4001, 0x10}, /* total 128 black column */
{0x4022, 0x06}, /* Anchor left end H */
{0x4023, 0x00}, /* Anchor left end L */
{0x4025, 0x2a}, /* Anchor right start L */
{0x4027, 0x2b}, /* Anchor right end L */
{0x402b, 0x04}, /* top black line number */
{0x402f, 0x04}, /* bottom black line number */
{0x4500, 0x58},
{0x4600, 0x00},
{0x4601, 0xcb},
{0x382d, 0x7f},
{0x0100, 0x01},
{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* max_framerate 30fps
* mipi_datarate per lane 720Mbps
*/
static const struct regval ov8858_3264x2448_regs_4lane[] = {
{0x0100, 0x00},
{0x3501, 0x9a}, /* exposure M */
{0x3502, 0x20}, /* exposure L */
{0x3808, 0x0c}, /* x output size H */
{0x3809, 0xc0}, /* x output size L */
{0x380a, 0x09}, /* y output size H */
{0x380b, 0x90}, /* y output size L */
{0x380c, 0x07}, /* HTS H */
{0x380d, 0x94}, /* HTS L */
{0x380e, 0x09}, /* VTS H */
{0x380f, 0xaa}, /* VTS L */
{0x3814, 0x01}, /* x odd inc */
{0x3821, 0x46}, /* mirror on, bin off */
{0x382a, 0x01}, /* y odd inc */
{0x3830, 0x06},
{0x3836, 0x01},
{0x3f0a, 0x00},
{0x4001, 0x00}, /* total 256 black column */
{0x4022, 0x0c}, /* Anchor left end H */
{0x4023, 0x60}, /* Anchor left end L */
{0x4025, 0x36}, /* Anchor right start L */
{0x4027, 0x37}, /* Anchor right end L */
{0x402b, 0x08}, /* top black line number */
{0x402f, 0x08}, /* interpolation x/y disable, Anchor one disable */
{0x4500, 0x58},
{0x4600, 0x01},
{0x4601, 0x97},
{0x382d, 0xff},
{REG_NULL, 0x00},
};
static const struct ov8858_mode ov8858_modes[] = {
{
.width = 3264,
.height = 2448,
.exp_def = 2464,
.hts_def = 1940 * 2,
.vts_def = 2472,
.reg_modes = {
.mode_2lanes = ov8858_3264x2448_regs_2lane,
.mode_4lanes = ov8858_3264x2448_regs_4lane,
},
},
{
.width = 1632,
.height = 1224,
.exp_def = 1232,
.hts_def = 1928 * 2,
.vts_def = 1244,
.reg_modes = {
.mode_2lanes = ov8858_1632x1224_regs_2lane,
.mode_4lanes = ov8858_1632x1224_regs_4lane,
},
},
};
static const s64 link_freq_menu_items[] = {
OV8858_LINK_FREQ
};
static const char * const ov8858_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
"Vertical Color Bar Type 2",
"Vertical Color Bar Type 3",
"Vertical Color Bar Type 4"
};
/* ----------------------------------------------------------------------------
* HW access
*/
static int ov8858_write(struct ov8858 *ov8858, u32 reg, u32 val, int *err)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
unsigned int len = (reg >> OV8858_REG_SIZE_SHIFT) & 3;
u16 addr = reg & OV8858_REG_ADDR_MASK;
u8 buf[6];
int ret;
if (err && *err)
return *err;
put_unaligned_be16(addr, buf);
put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
ret = i2c_master_send(client, buf, len + 2);
if (ret != len + 2) {
ret = ret < 0 ? ret : -EIO;
if (err)
*err = ret;
dev_err(&client->dev,
"Failed to write reg %u: %d\n", addr, ret);
return ret;
}
return 0;
}
static int ov8858_write_array(struct ov8858 *ov8858, const struct regval *regs)
{
unsigned int i;
int ret = 0;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; ++i) {
ov8858_write(ov8858, OV8858_REG_8BIT(regs[i].addr),
regs[i].val, &ret);
}
return ret;
}
static int ov8858_read(struct ov8858 *ov8858, u32 reg, u32 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
__be16 reg_addr_be = cpu_to_be16(reg & OV8858_REG_ADDR_MASK);
unsigned int len = (reg >> OV8858_REG_SIZE_SHIFT) & 3;
struct i2c_msg msgs[2];
__be32 data_be = 0;
u8 *data_be_p;
int ret;
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];
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs)) {
ret = ret < 0 ? ret : -EIO;
dev_err(&client->dev,
"Failed to read reg %u: %d\n", reg, ret);
return ret;
}
*val = be32_to_cpu(data_be);
return 0;
}
/* ----------------------------------------------------------------------------
* Streaming
*/
static int ov8858_start_stream(struct ov8858 *ov8858,
struct v4l2_subdev_state *state)
{
struct v4l2_mbus_framefmt *format;
const struct ov8858_mode *mode;
const struct regval *reg_list;
int ret;
ret = ov8858_write_array(ov8858, ov8858->global_regs);
if (ret)
return ret;
format = v4l2_subdev_get_pad_format(&ov8858->subdev, state, 0);
mode = v4l2_find_nearest_size(ov8858_modes, ARRAY_SIZE(ov8858_modes),
width, height, format->width,
format->height);
reg_list = ov8858->num_lanes == 4
? mode->reg_modes.mode_4lanes
: mode->reg_modes.mode_2lanes;
ret = ov8858_write_array(ov8858, reg_list);
if (ret)
return ret;
/* 200 usec max to let PLL stabilize. */
fsleep(200);
ret = __v4l2_ctrl_handler_setup(&ov8858->ctrl_handler);
if (ret)
return ret;
ret = ov8858_write(ov8858, OV8858_REG_SC_CTRL0100,
OV8858_MODE_STREAMING, NULL);
if (ret)
return ret;
/* t5 (fixed) = 10msec before entering streaming state */
fsleep(10000);
return 0;
}
static int ov8858_stop_stream(struct ov8858 *ov8858)
{
return ov8858_write(ov8858, OV8858_REG_SC_CTRL0100,
OV8858_MODE_SW_STANDBY, NULL);
}
static int ov8858_s_stream(struct v4l2_subdev *sd, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov8858 *ov8858 = sd_to_ov8858(sd);
struct v4l2_subdev_state *state;
int ret = 0;
state = v4l2_subdev_lock_and_get_active_state(sd);
if (on) {
ret = pm_runtime_resume_and_get(&client->dev);
if (ret < 0)
goto unlock_and_return;
ret = ov8858_start_stream(ov8858, state);
if (ret) {
dev_err(&client->dev, "Failed to start streaming\n");
pm_runtime_put_sync(&client->dev);
goto unlock_and_return;
}
} else {
ov8858_stop_stream(ov8858);
pm_runtime_mark_last_busy(&client->dev);
pm_runtime_put_autosuspend(&client->dev);
}
unlock_and_return:
v4l2_subdev_unlock_state(state);
return ret;
}
static const struct v4l2_subdev_video_ops ov8858_video_ops = {
.s_stream = ov8858_s_stream,
};
/* ----------------------------------------------------------------------------
* Pad ops
*/
static int ov8858_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_format *fmt)
{
struct ov8858 *ov8858 = sd_to_ov8858(sd);
const struct ov8858_mode *mode;
s64 h_blank, vblank_def;
mode = v4l2_find_nearest_size(ov8858_modes, ARRAY_SIZE(ov8858_modes),
width, height, fmt->format.width,
fmt->format.height);
fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.field = V4L2_FIELD_NONE;
/* Store the format in the current subdev state. */
*v4l2_subdev_get_pad_format(sd, state, 0) = fmt->format;
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
return 0;
/* Adjust control limits when a new mode is applied. */
h_blank = mode->hts_def - mode->width;
__v4l2_ctrl_modify_range(ov8858->hblank, h_blank, h_blank, 1,
h_blank);
vblank_def = mode->vts_def - mode->height;
__v4l2_ctrl_modify_range(ov8858->vblank, vblank_def,
OV8858_VTS_MAX - mode->height, 1,
vblank_def);
return 0;
}
static int ov8858_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(ov8858_modes))
return -EINVAL;
if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
return -EINVAL;
fse->min_width = ov8858_modes[fse->index].width;
fse->max_width = ov8858_modes[fse->index].width;
fse->max_height = ov8858_modes[fse->index].height;
fse->min_height = ov8858_modes[fse->index].height;
return 0;
}
static int ov8858_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index != 0)
return -EINVAL;
code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
return 0;
}
static int ov8858_init_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state)
{
const struct ov8858_mode *def_mode = &ov8858_modes[0];
struct v4l2_subdev_format fmt = {
.which = V4L2_SUBDEV_FORMAT_TRY,
.format = {
.width = def_mode->width,
.height = def_mode->height,
},
};
ov8858_set_fmt(sd, sd_state, &fmt);
return 0;
}
static const struct v4l2_subdev_pad_ops ov8858_pad_ops = {
.init_cfg = ov8858_init_cfg,
.enum_mbus_code = ov8858_enum_mbus_code,
.enum_frame_size = ov8858_enum_frame_sizes,
.get_fmt = v4l2_subdev_get_fmt,
.set_fmt = ov8858_set_fmt,
};
static const struct v4l2_subdev_core_ops ov8858_core_ops = {
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
};
static const struct v4l2_subdev_ops ov8858_subdev_ops = {
.core = &ov8858_core_ops,
.video = &ov8858_video_ops,
.pad = &ov8858_pad_ops,
};
/* ----------------------------------------------------------------------------
* Controls handling
*/
static int ov8858_enable_test_pattern(struct ov8858 *ov8858, u32 pattern)
{
u32 val;
if (pattern)
val = (pattern - 1) | OV8858_TEST_PATTERN_ENABLE;
else
val = OV8858_TEST_PATTERN_DISABLE;
return ov8858_write(ov8858, OV8858_REG_TEST_PATTERN, val, NULL);
}
static int ov8858_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct ov8858 *ov8858 = container_of(ctrl->handler,
struct ov8858, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
struct v4l2_mbus_framefmt *format;
struct v4l2_subdev_state *state;
u16 digi_gain;
s64 max_exp;
int ret;
/*
* The control handler and the subdev state use the same mutex and the
* mutex is guaranteed to be locked:
* - by the core when s_ctrl is called int the VIDIOC_S_CTRL call path
* - by the driver when s_ctrl is called in the s_stream(1) call path
*/
state = v4l2_subdev_get_locked_active_state(&ov8858->subdev);
format = v4l2_subdev_get_pad_format(&ov8858->subdev, state, 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_exp = format->height + ctrl->val - OV8858_EXPOSURE_MARGIN;
__v4l2_ctrl_modify_range(ov8858->exposure,
ov8858->exposure->minimum, max_exp,
ov8858->exposure->step,
ov8858->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 exposure are fractional part */
ret = ov8858_write(ov8858, OV8858_REG_LONG_EXPO,
ctrl->val << 4, NULL);
break;
case V4L2_CID_ANALOGUE_GAIN:
ret = ov8858_write(ov8858, OV8858_REG_LONG_GAIN,
ctrl->val, NULL);
break;
case V4L2_CID_DIGITAL_GAIN:
/*
* Digital gain is assembled as:
* 0x350a[7:0] = dgain[13:6]
* 0x350b[5:0] = dgain[5:0]
* Reassemble the control value to write it in one go.
*/
digi_gain = (ctrl->val & OV8858_LONG_DIGIGAIN_L_MASK)
| ((ctrl->val & OV8858_LONG_DIGIGAIN_H_MASK) <<
OV8858_LONG_DIGIGAIN_H_SHIFT);
ret = ov8858_write(ov8858, OV8858_REG_LONG_DIGIGAIN,
digi_gain, NULL);
break;
case V4L2_CID_VBLANK:
ret = ov8858_write(ov8858, OV8858_REG_VTS,
ctrl->val + format->height, NULL);
break;
case V4L2_CID_TEST_PATTERN:
ret = ov8858_enable_test_pattern(ov8858, ctrl->val);
break;
default:
ret = -EINVAL;
dev_warn(&client->dev, "%s Unhandled id: 0x%x\n",
__func__, ctrl->id);
break;
}
pm_runtime_put(&client->dev);
return ret;
}
static const struct v4l2_ctrl_ops ov8858_ctrl_ops = {
.s_ctrl = ov8858_set_ctrl,
};
/* ----------------------------------------------------------------------------
* Power Management
*/
static int ov8858_power_on(struct ov8858 *ov8858)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
struct device *dev = &client->dev;
unsigned long delay_us;
int ret;
if (clk_get_rate(ov8858->xvclk) != OV8858_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
ret = clk_prepare_enable(ov8858->xvclk);
if (ret < 0) {
dev_err(dev, "Failed to enable xvclk\n");
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(ov8858_supply_names),
ov8858->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators\n");
goto disable_clk;
}
/*
* The chip manual only suggests 8192 cycles prior to first SCCB
* transaction, but a double sleep between the release of gpios
* helps with sporadic failures observed at probe time.
*/
delay_us = DIV_ROUND_UP(8192, OV8858_XVCLK_FREQ / 1000 / 1000);
gpiod_set_value_cansleep(ov8858->reset_gpio, 0);
fsleep(delay_us);
gpiod_set_value_cansleep(ov8858->pwdn_gpio, 0);
fsleep(delay_us);
return 0;
disable_clk:
clk_disable_unprepare(ov8858->xvclk);
return ret;
}
static void ov8858_power_off(struct ov8858 *ov8858)
{
gpiod_set_value_cansleep(ov8858->pwdn_gpio, 1);
clk_disable_unprepare(ov8858->xvclk);
gpiod_set_value_cansleep(ov8858->reset_gpio, 1);
regulator_bulk_disable(ARRAY_SIZE(ov8858_supply_names),
ov8858->supplies);
}
static int ov8858_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov8858 *ov8858 = sd_to_ov8858(sd);
return ov8858_power_on(ov8858);
}
static int ov8858_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov8858 *ov8858 = sd_to_ov8858(sd);
ov8858_power_off(ov8858);
return 0;
}
static const struct dev_pm_ops ov8858_pm_ops = {
SET_RUNTIME_PM_OPS(ov8858_runtime_suspend,
ov8858_runtime_resume, NULL)
};
/* ----------------------------------------------------------------------------
* Probe and initialization
*/
static int ov8858_init_ctrls(struct ov8858 *ov8858)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
struct v4l2_ctrl_handler *handler = &ov8858->ctrl_handler;
const struct ov8858_mode *mode = &ov8858_modes[0];
struct v4l2_fwnode_device_properties props;
s64 exposure_max, vblank_def;
unsigned int pixel_rate;
struct v4l2_ctrl *ctrl;
u32 h_blank;
int ret;
ret = v4l2_ctrl_handler_init(handler, 10);
if (ret)
return ret;
ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
0, 0, link_freq_menu_items);
if (ctrl)
ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* pixel rate = link frequency * 2 * lanes / bpp */
pixel_rate = OV8858_LINK_FREQ * 2 * ov8858->num_lanes / 10;
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
0, pixel_rate, 1, pixel_rate);
h_blank = mode->hts_def - mode->width;
ov8858->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
h_blank, h_blank, 1, h_blank);
if (ov8858->hblank)
ov8858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
vblank_def = mode->vts_def - mode->height;
ov8858->vblank = v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops,
V4L2_CID_VBLANK, vblank_def,
OV8858_VTS_MAX - mode->height,
1, vblank_def);
exposure_max = mode->vts_def - OV8858_EXPOSURE_MARGIN;
ov8858->exposure = v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops,
V4L2_CID_EXPOSURE,
OV8858_EXPOSURE_MIN,
exposure_max, OV8858_EXPOSURE_STEP,
mode->exp_def);
v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
OV8858_LONG_GAIN_MIN, OV8858_LONG_GAIN_MAX,
OV8858_LONG_GAIN_STEP, OV8858_LONG_GAIN_DEFAULT);
v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
OV8858_LONG_DIGIGAIN_MIN, OV8858_LONG_DIGIGAIN_MAX,
OV8858_LONG_DIGIGAIN_STEP,
OV8858_LONG_DIGIGAIN_DEFAULT);
v4l2_ctrl_new_std_menu_items(handler, &ov8858_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(ov8858_test_pattern_menu) - 1,
0, 0, ov8858_test_pattern_menu);
if (handler->error) {
ret = handler->error;
goto err_free_handler;
}
ret = v4l2_fwnode_device_parse(&client->dev, &props);
if (ret)
goto err_free_handler;
ret = v4l2_ctrl_new_fwnode_properties(handler, &ov8858_ctrl_ops,
&props);
if (ret)
goto err_free_handler;
ov8858->subdev.ctrl_handler = handler;
return 0;
err_free_handler:
dev_err(&client->dev, "Failed to init controls: %d\n", ret);
v4l2_ctrl_handler_free(handler);
return ret;
}
static int ov8858_check_sensor_id(struct ov8858 *ov8858)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
u32 id = 0;
int ret;
ret = ov8858_read(ov8858, OV8858_REG_CHIP_ID, &id);
if (ret)
return ret;
if (id != OV8858_CHIP_ID) {
dev_err(&client->dev, "Unexpected sensor id 0x%x\n", id);
return -ENODEV;
}
ret = ov8858_read(ov8858, OV8858_REG_SUB_ID, &id);
if (ret)
return ret;
dev_info(&client->dev, "Detected OV8858 sensor, revision 0x%x\n", id);
if (id == OV8858_R2A) {
/* R2A supports 2 and 4 lanes modes. */
ov8858->global_regs = ov8858->num_lanes == 4
? ov8858_global_regs_r2a_4lane
: ov8858_global_regs_r2a_2lane;
} else if (ov8858->num_lanes == 2) {
/*
* R1A only supports 2 lanes mode and it's only partially
* supported.
*/
ov8858->global_regs = ov8858_global_regs_r1a;
dev_warn(&client->dev, "R1A may not work well!\n");
} else {
dev_err(&client->dev,
"Unsupported number of data lanes for R1A revision.\n");
return -EINVAL;
}
return 0;
}
static int ov8858_configure_regulators(struct ov8858 *ov8858)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ov8858_supply_names); i++)
ov8858->supplies[i].supply = ov8858_supply_names[i];
return devm_regulator_bulk_get(&client->dev,
ARRAY_SIZE(ov8858_supply_names),
ov8858->supplies);
}
static int ov8858_parse_of(struct ov8858 *ov8858)
{
struct v4l2_fwnode_endpoint vep = { .bus_type = V4L2_MBUS_CSI2_DPHY };
struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev);
struct device *dev = &client->dev;
struct fwnode_handle *endpoint;
int ret;
endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
if (!endpoint) {
dev_err(dev, "Failed to get endpoint\n");
return -EINVAL;
}
ret = v4l2_fwnode_endpoint_parse(endpoint, &vep);
if (ret) {
dev_err(dev, "Failed to parse endpoint: %d\n", ret);
fwnode_handle_put(endpoint);
return ret;
}
ov8858->num_lanes = vep.bus.mipi_csi2.num_data_lanes;
switch (ov8858->num_lanes) {
case 4:
case 2:
break;
default:
dev_err(dev, "Unsupported number of data lanes %u\n",
ov8858->num_lanes);
fwnode_handle_put(endpoint);
return -EINVAL;
}
ov8858->subdev.fwnode = endpoint;
return 0;
}
static int ov8858_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct v4l2_subdev *sd;
struct ov8858 *ov8858;
int ret;
ov8858 = devm_kzalloc(dev, sizeof(*ov8858), GFP_KERNEL);
if (!ov8858)
return -ENOMEM;
ov8858->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(ov8858->xvclk))
return dev_err_probe(dev, PTR_ERR(ov8858->xvclk),
"Failed to get xvclk\n");
ov8858->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_HIGH);
if (IS_ERR(ov8858->reset_gpio))
return dev_err_probe(dev, PTR_ERR(ov8858->reset_gpio),
"Failed to get reset gpio\n");
ov8858->pwdn_gpio = devm_gpiod_get_optional(dev, "powerdown",
GPIOD_OUT_HIGH);
if (IS_ERR(ov8858->pwdn_gpio))
return dev_err_probe(dev, PTR_ERR(ov8858->pwdn_gpio),
"Failed to get powerdown gpio\n");
v4l2_i2c_subdev_init(&ov8858->subdev, client, &ov8858_subdev_ops);
ret = ov8858_configure_regulators(ov8858);
if (ret)
return dev_err_probe(dev, ret, "Failed to get regulators\n");
ret = ov8858_parse_of(ov8858);
if (ret)
return ret;
ret = ov8858_init_ctrls(ov8858);
if (ret)
goto err_put_fwnode;
sd = &ov8858->subdev;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
ov8858->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&sd->entity, 1, &ov8858->pad);
if (ret < 0)
goto err_free_handler;
sd->state_lock = ov8858->ctrl_handler.lock;
ret = v4l2_subdev_init_finalize(sd);
if (ret < 0) {
dev_err(&client->dev, "Subdev initialization error %d\n", ret);
goto err_clean_entity;
}
ret = ov8858_power_on(ov8858);
if (ret)
goto err_clean_entity;
pm_runtime_set_active(dev);
pm_runtime_get_noresume(dev);
pm_runtime_enable(dev);
ret = ov8858_check_sensor_id(ov8858);
if (ret)
goto err_power_off;
pm_runtime_set_autosuspend_delay(dev, 1000);
pm_runtime_use_autosuspend(dev);
ret = v4l2_async_register_subdev_sensor(sd);
if (ret) {
dev_err(dev, "v4l2 async register subdev failed\n");
goto err_power_off;
}
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return 0;
err_power_off:
pm_runtime_disable(dev);
pm_runtime_put_noidle(dev);
ov8858_power_off(ov8858);
err_clean_entity:
media_entity_cleanup(&sd->entity);
err_free_handler:
v4l2_ctrl_handler_free(&ov8858->ctrl_handler);
err_put_fwnode:
fwnode_handle_put(ov8858->subdev.fwnode);
return ret;
}
static void ov8858_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov8858 *ov8858 = sd_to_ov8858(sd);
v4l2_async_unregister_subdev(sd);
media_entity_cleanup(&sd->entity);
v4l2_ctrl_handler_free(&ov8858->ctrl_handler);
fwnode_handle_put(ov8858->subdev.fwnode);
pm_runtime_disable(&client->dev);
if (!pm_runtime_status_suspended(&client->dev))
ov8858_power_off(ov8858);
pm_runtime_set_suspended(&client->dev);
}
static const struct of_device_id ov8858_of_match[] = {
{ .compatible = "ovti,ov8858" },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, ov8858_of_match);
static struct i2c_driver ov8858_i2c_driver = {
.driver = {
.name = "ov8858",
.pm = &ov8858_pm_ops,
.of_match_table = ov8858_of_match,
},
.probe = ov8858_probe,
.remove = ov8858_remove,
};
module_i2c_driver(ov8858_i2c_driver);
MODULE_DESCRIPTION("OmniVision OV8858 sensor driver");
MODULE_LICENSE("GPL");
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