// SPDX-License-Identifier: GPL-2.0
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/*
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* gc1054 sensor driver
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*
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* Copyright (C) 2021 Rockchip Electronics Co., Ltd.
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*
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* V0.0X01.0X00 first version.
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* V0.0X01.0X01 add quick stream on/off
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*/
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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#include <linux/sysfs.h>
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#include <linux/version.h>
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#include <linux/rk-camera-module.h>
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#include <media/media-entity.h>
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#include <media/v4l2-async.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include <linux/rk-preisp.h>
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#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x02)
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#ifndef V4L2_CID_DIGITAL_GAIN
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#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
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#endif
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#define GC1054_NAME "gc1054"
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#define GC1054_MEDIA_BUS_FMT MEDIA_BUS_FMT_SRGGB10_1X10
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#define MIPI_FREQ_297M 297000000
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#define GC1054_XVCLK_FREQ 27000000
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#define GC1054_PIXEL_RATE (47250000)
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#define GC1054_XVCLK_FREQ 27000000
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#define GC1054_PAGE_SELECT 0xFE
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#define GC1054_REG_CHIP_ID_H 0xF0
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#define GC1054_REG_CHIP_ID_L 0xF1
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#define GC1054_REG_EXP_H 0x03
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#define GC1054_REG_EXP_L 0x04
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#define GC1054_REG_VTS_H 0x41
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#define GC1054_REG_VTS_L 0x42
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#define GC1054_REG_CTRL_MODE 0x3E
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#define GC1054_MODE_SW_STANDBY 0x11
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#define GC1054_MODE_STREAMING 0x91
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#define REG_NULL 0xFF
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#define GC1054_CHIP_ID 0x1054
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#define GC1054_VTS_MAX 0x3FFF
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#define GC1054_HTS_MAX 0xFFF
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#define GC1054_EXPOSURE_MAX 0x3FFF
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#define GC1054_EXPOSURE_MIN 1
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#define GC1054_EXPOSURE_STEP 1
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#define GC1054_GAIN_MIN 0x40
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#define GC1054_GAIN_MAX 0x2000
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#define GC1054_GAIN_STEP 1
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#define GC1054_GAIN_DEFAULT 64
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#define GC1054_LANES 2
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#define GC1054_REG_VALUE_08BIT 1
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#define GC1054_REG_VALUE_16BIT 2
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#define GC1054_REG_VALUE_24BIT 3
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#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb))
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#define GC1054_FLIP_MIRROR_REG 0x17
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#define GC_MIRROR_BIT_MASK BIT(0)
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#define GC_FLIP_BIT_MASK BIT(1)
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#define PIX_FORMAT MEDIA_BUS_FMT_SRGGB10_1X10
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#define GC1054_NAME "gc1054"
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static const char * const gc1054_supply_names[] = {
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"vcc2v8_dvp", /* Analog power */
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"vcc1v8_dvp", /* Digital I/O power */
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"vdd1v5_dvp", /* Digital core power */
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};
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#define GC1054_NUM_SUPPLIES ARRAY_SIZE(gc1054_supply_names)
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#define to_gc1054(sd) container_of(sd, struct gc1054, subdev)
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enum gc1054_max_pad {
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PAD0,
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PAD_MAX,
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};
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struct regval {
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u8 addr;
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u8 val;
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};
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struct gc1054_mode {
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u32 width;
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u32 height;
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struct v4l2_fract max_fps;
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u32 hts_def;
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u32 vts_def;
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u32 exp_def;
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u32 hdr_mode;
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const struct regval *reg_list;
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};
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struct gc1054 {
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struct i2c_client *client;
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struct clk *xvclk;
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struct gpio_desc *reset_gpio;
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struct gpio_desc *pwdn_gpio;
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struct regulator_bulk_data supplies[GC1054_NUM_SUPPLIES];
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struct v4l2_subdev subdev;
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struct media_pad pad;
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_ctrl *exposure;
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struct v4l2_ctrl *anal_gain;
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struct v4l2_ctrl *digi_gain;
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struct v4l2_ctrl *hblank;
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struct v4l2_ctrl *vblank;
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struct v4l2_ctrl *test_pattern;
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struct mutex mutex;
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bool streaming;
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bool power_on;
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const struct gc1054_mode *cur_mode;
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u32 module_index;
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const char *module_facing;
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const char *module_name;
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const char *len_name;
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};
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#define to_gc1054(sd) container_of(sd, struct gc1054, subdev)
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/*
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* window_size=1920*1080 mipi@2lane
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* mclk=24mhz,mipi_clk=594Mbps
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* pixel_line_total=2200,line_frame_total=1125
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* row_time=29.629us,frame_rate=30fps
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*/
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static const struct regval gc1054_1280x720_regs_dvp[] = {
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//window_size=1920*1080
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//mclk=27mhz,pclk=47.25mhz
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//pixel_line_total=2200,line_frame_total=1125
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//row_time=29.629us,frame_rate=30fps
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/****system****/
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{0xf2, 0x00},
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{0xf6, 0x00},
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{0xfc, 0x04},
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{0xf7, 0x01},
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{0xf8, 0x0d},
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{0xf9, 0x00},
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{0xfa, 0x80},
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{0xfc, 0x0e},
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{0xfe, 0x00},
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{0x03, 0x02},
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{0x04, 0xa6},
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{0x05, 0x03},
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{0x06, 0x94},
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{0x07, 0x00},
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{0x08, 0x0a},
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{0x09, 0x00},
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{0x0a, 0x04},
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{0x0b, 0x00},
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{0x0c, 0x00},
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{0x0d, 0x02},
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{0x0e, 0xd4},
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{0x0f, 0x05},
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{0x10, 0x08},
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{0x17, 0xc0},
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{0x18, 0x02},
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{0x19, 0x08},
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{0x1a, 0x18},
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{0x1d, 0x12},
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{0x1e, 0x50},
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{0x1f, 0x80},
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{0x21, 0x30},
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{0x23, 0xf8},
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{0x25, 0x10},
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{0x28, 0x20},
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{0x34, 0x0a},
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{0x3c, 0x10},
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{0x3d, 0x0e},
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{0xcc, 0x8e},
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{0xcd, 0x9a},
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{0xcf, 0x70},
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{0xd0, 0xa9},
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{0xd1, 0xc5},
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{0xd2, 0xed},
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{0xd8, 0x3c},
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{0xd9, 0x7a},
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{0xda, 0x12},
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{0xdb, 0x50},
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{0xde, 0x0c},
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{0xe3, 0x60},
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{0xe4, 0x78},
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{0xfe, 0x01},
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{0xe3, 0x01},
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{0xe6, 0x10},
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{0xfe, 0x01},
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{0x80, 0x50},
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{0x88, 0x23},
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{0x89, 0x03},
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{0x90, 0x01},
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{0x92, 0x02},
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{0x94, 0x03},
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{0x95, 0x02},
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{0x96, 0xd0},
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{0x97, 0x05},
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{0x98, 0x00},
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{0xfe, 0x01},
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{0x40, 0x22},
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{0x43, 0x03},
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{0x4e, 0x3c},
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{0x4f, 0x00},
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{0x60, 0x00},
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{0x61, 0x80},
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{0xfe, 0x01},
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{0xb0, 0x48},
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{0xb1, 0x01},
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{0xb2, 0x00},
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{0xb6, 0x00},
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{0xfe, 0x02},
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{0x01, 0x00},
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{0x02, 0x01},
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{0x03, 0x02},
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{0x04, 0x03},
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{0x05, 0x04},
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{0x06, 0x05},
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{0x07, 0x06},
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{0x08, 0x0e},
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{0x09, 0x16},
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{0x0a, 0x1e},
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{0x0b, 0x36},
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{0x0c, 0x3e},
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{0x0d, 0x56},
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{0xfe, 0x02},
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{0xb0, 0x00},
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{0xb1, 0x00},
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{0xb2, 0x00},
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{0xb3, 0x11},
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{0xb4, 0x22},
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{0xb5, 0x54},
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{0xb6, 0xb8},
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{0xb7, 0x60},
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{0xb9, 0x00},
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{0xba, 0xc0},
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{0xc0, 0x20},
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{0xc1, 0x2d},
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{0xc2, 0x40},
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{0xc3, 0x5b},
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{0xc4, 0x80},
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{0xc5, 0xb5},
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{0xc6, 0x00},
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{0xc7, 0x6a},
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{0xc8, 0x00},
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{0xc9, 0xd4},
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{0xca, 0x00},
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{0xcb, 0xa8},
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{0xcc, 0x00},
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{0xcd, 0x50},
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{0xce, 0x00},
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{0xcf, 0xa1},
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{0xfe, 0x02},
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{0x54, 0xf7},
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{0x55, 0xf0},
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{0x56, 0x00},
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{0x57, 0x00},
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{0x58, 0x00},
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{0x5a, 0x04},
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{0xfe, 0x04},
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{0x81, 0x8a},
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{0xfe, 0x03},
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{0x01, 0x00},
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{0x02, 0x00},
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{0x03, 0x00},
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{0x10, 0x11},
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{0x15, 0x00},
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{0x40, 0x01},
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{0x41, 0x00},
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{0xfe, 0x00},
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{0xf2, 0x0f},
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{REG_NULL, 0x00},
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};
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static const struct gc1054_mode supported_modes[] = {
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{
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.width = 1280,
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.height = 720,
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.max_fps = {
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.numerator = 10000,
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.denominator = 250000,
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},
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.exp_def = 0x2D0,
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.hts_def = 0x834,
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.vts_def = 0x2ee,
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.reg_list = gc1054_1280x720_regs_dvp,
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.hdr_mode = NO_HDR,
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},
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};
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/* sensor register write */
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static int gc1054_write_reg(struct i2c_client *client, u8 reg, u8 val)
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{
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struct i2c_msg msg;
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u8 buf[2];
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int ret;
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buf[0] = reg & 0xFF;
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buf[1] = val;
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msg.addr = client->addr;
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msg.flags = client->flags;
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msg.buf = buf;
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msg.len = sizeof(buf);
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ret = i2c_transfer(client->adapter, &msg, 1);
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if (ret >= 0)
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return 0;
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dev_err(&client->dev,
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"gc1054 write reg(0x%x val:0x%x) failed !\n", reg, val);
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return ret;
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}
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static int gc1054_write_array(struct i2c_client *client,
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const struct regval *regs)
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{
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int i, ret = 0;
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i = 0;
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while (regs[i].addr != REG_NULL) {
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ret = gc1054_write_reg(client, regs[i].addr, regs[i].val);
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if (ret) {
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dev_err(&client->dev, "%s failed !\n", __func__);
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break;
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}
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i++;
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}
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return ret;
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}
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/* sensor register read */
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static int gc1054_read_reg(struct i2c_client *client, u8 reg, u8 *val)
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{
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struct i2c_msg msg[2];
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u8 buf[1];
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int ret;
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buf[0] = reg & 0xFF;
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msg[0].addr = client->addr;
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msg[0].flags = client->flags;
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msg[0].buf = buf;
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msg[0].len = sizeof(buf);
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msg[1].addr = client->addr;
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msg[1].flags = client->flags | I2C_M_RD;
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msg[1].buf = buf;
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msg[1].len = 1;
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ret = i2c_transfer(client->adapter, msg, 2);
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if (ret >= 0) {
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*val = buf[0];
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return 0;
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}
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dev_err(&client->dev,
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"gc1054 read reg(0x%x val:0x%x) failed !\n", reg, *val);
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return ret;
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}
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static int gc1054_get_reso_dist(const struct gc1054_mode *mode,
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struct v4l2_mbus_framefmt *framefmt)
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{
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return abs(mode->width - framefmt->width) +
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abs(mode->height - framefmt->height);
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}
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static const struct gc1054_mode *
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gc1054_find_best_fit(struct gc1054 *gc1054, struct v4l2_subdev_format *fmt)
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{
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struct v4l2_mbus_framefmt *framefmt = &fmt->format;
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int dist;
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int cur_best_fit = 0;
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int cur_best_fit_dist = -1;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
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dist = gc1054_get_reso_dist(&supported_modes[i], framefmt);
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if (cur_best_fit_dist == -1 || dist <= cur_best_fit_dist) {
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cur_best_fit_dist = dist;
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cur_best_fit = i;
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}
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}
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return &supported_modes[cur_best_fit];
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}
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static int gc1054_set_fmt(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct gc1054 *gc1054 = to_gc1054(sd);
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const struct gc1054_mode *mode;
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s64 h_blank, vblank_def;
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mutex_lock(&gc1054->mutex);
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mode = gc1054_find_best_fit(gc1054, fmt);
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fmt->format.code = PIX_FORMAT;
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fmt->format.width = mode->width;
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fmt->format.height = mode->height;
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fmt->format.field = V4L2_FIELD_NONE;
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if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
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#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
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*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
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#else
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mutex_unlock(&gc1054->mutex);
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return -ENOTTY;
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#endif
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} else {
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gc1054->cur_mode = mode;
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h_blank = mode->hts_def - mode->width;
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__v4l2_ctrl_modify_range(gc1054->hblank, h_blank,
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h_blank, 1, h_blank);
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vblank_def = mode->vts_def - mode->height;
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__v4l2_ctrl_modify_range(gc1054->vblank, vblank_def,
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GC1054_VTS_MAX - mode->height,
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1, vblank_def);
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}
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mutex_unlock(&gc1054->mutex);
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return 0;
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}
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static int gc1054_get_fmt(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct gc1054 *gc1054 = to_gc1054(sd);
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const struct gc1054_mode *mode = gc1054->cur_mode;
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mutex_lock(&gc1054->mutex);
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if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
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#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
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fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
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#else
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mutex_unlock(&gc1054->mutex);
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return -ENOTTY;
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#endif
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} else {
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fmt->format.width = mode->width;
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fmt->format.height = mode->height;
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fmt->format.code = PIX_FORMAT;
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fmt->format.field = V4L2_FIELD_NONE;
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}
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mutex_unlock(&gc1054->mutex);
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return 0;
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}
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#define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4)
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#define DST_WIDTH 1280
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#define DST_HEIGHT 720
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static int gc1054_get_selection(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_selection *sel)
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{
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struct gc1054 *gc1054 = to_gc1054(sd);
|
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if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {
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sel->r.left = CROP_START(gc1054->cur_mode->width, DST_WIDTH);
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sel->r.width = DST_WIDTH;
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sel->r.top = CROP_START(gc1054->cur_mode->height, DST_HEIGHT);
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sel->r.height = DST_HEIGHT;
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return 0;
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}
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return -EINVAL;
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}
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static int gc1054_enum_mbus_code(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_mbus_code_enum *code)
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{
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if (code->index != 0)
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return -EINVAL;
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code->code = PIX_FORMAT;
|
|
return 0;
|
}
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static int gc1054_enum_frame_sizes(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_frame_size_enum *fse)
|
{
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if (fse->index >= ARRAY_SIZE(supported_modes))
|
return -EINVAL;
|
|
if (fse->code != PIX_FORMAT)
|
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 void gc1054_get_module_inf(struct gc1054 *gc1054,
|
struct rkmodule_inf *inf)
|
{
|
memset(inf, 0, sizeof(*inf));
|
strscpy(inf->base.sensor, GC1054_NAME, sizeof(inf->base.sensor));
|
strscpy(inf->base.module, gc1054->module_name,
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sizeof(inf->base.module));
|
strscpy(inf->base.lens, gc1054->len_name, sizeof(inf->base.lens));
|
}
|
|
static long gc1054_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
{
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
struct rkmodule_hdr_cfg *hdr_cfg;
|
long ret = 0;
|
u32 stream = 0;
|
|
switch (cmd) {
|
case PREISP_CMD_SET_HDRAE_EXP:
|
return -1;
|
case RKMODULE_GET_HDR_CFG:
|
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
|
hdr_cfg->esp.mode = HDR_NORMAL_VC;
|
hdr_cfg->hdr_mode = gc1054->cur_mode->hdr_mode;
|
break;
|
case RKMODULE_SET_HDR_CFG:
|
hdr_cfg = (struct rkmodule_hdr_cfg *)arg;
|
if (hdr_cfg->hdr_mode != 0)
|
ret = -1;
|
|
break;
|
case RKMODULE_SET_CONVERSION_GAIN:
|
break;
|
case RKMODULE_GET_MODULE_INFO:
|
gc1054_get_module_inf(gc1054, (struct rkmodule_inf *)arg);
|
break;
|
case RKMODULE_SET_QUICK_STREAM:
|
stream = *((u32 *)arg);
|
if (stream)
|
ret = gc1054_write_reg(gc1054->client,
|
GC1054_REG_CTRL_MODE,
|
GC1054_MODE_STREAMING);
|
else
|
ret = gc1054_write_reg(gc1054->client,
|
GC1054_REG_CTRL_MODE,
|
GC1054_MODE_SW_STANDBY);
|
break;
|
default:
|
ret = -ENOIOCTLCMD;
|
break;
|
}
|
|
return ret;
|
}
|
|
#ifdef CONFIG_COMPAT
|
static long gc1054_compat_ioctl32(struct v4l2_subdev *sd,
|
unsigned int cmd, unsigned long arg)
|
{
|
void __user *up = compat_ptr(arg);
|
struct rkmodule_inf *inf;
|
struct rkmodule_hdr_cfg *hdr;
|
struct preisp_hdrae_exp_s *hdrae;
|
long ret = 0;
|
u32 stream = 0;
|
u32 cg = 0;
|
|
switch (cmd) {
|
case RKMODULE_GET_HDR_CFG:
|
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
|
if (!hdr) {
|
ret = -ENOMEM;
|
return ret;
|
}
|
|
ret = gc1054_ioctl(sd, cmd, hdr);
|
if (!ret) {
|
ret = copy_to_user(up, hdr, sizeof(*hdr));
|
if (ret)
|
ret = -EFAULT;
|
}
|
kfree(hdr);
|
break;
|
case RKMODULE_SET_HDR_CFG:
|
hdr = kzalloc(sizeof(*hdr), GFP_KERNEL);
|
if (!hdr) {
|
ret = -ENOMEM;
|
return ret;
|
}
|
|
if (copy_from_user(hdr, up, sizeof(*hdr))) {
|
kfree(hdr);
|
return -EFAULT;
|
}
|
|
gc1054_ioctl(sd, cmd, hdr);
|
kfree(hdr);
|
break;
|
case RKMODULE_SET_CONVERSION_GAIN:
|
if (copy_from_user(&cg, up, sizeof(cg)))
|
return -EFAULT;
|
|
gc1054_ioctl(sd, cmd, &cg);
|
break;
|
case RKMODULE_GET_MODULE_INFO:
|
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
|
if (!inf) {
|
ret = -ENOMEM;
|
return ret;
|
}
|
|
ret = gc1054_ioctl(sd, cmd, inf);
|
if (!ret) {
|
ret = copy_to_user(up, inf, sizeof(*inf));
|
if (ret)
|
ret = -EFAULT;
|
}
|
kfree(inf);
|
break;
|
case RKMODULE_SET_QUICK_STREAM:
|
if (copy_from_user(&stream, up, sizeof(u32)))
|
return -EFAULT;
|
|
gc1054_ioctl(sd, cmd, &stream);
|
break;
|
case PREISP_CMD_SET_HDRAE_EXP:
|
hdrae = kzalloc(sizeof(*hdrae), GFP_KERNEL);
|
if (!hdrae) {
|
ret = -ENOMEM;
|
return ret;
|
}
|
|
if (copy_from_user(hdrae, up, sizeof(*hdrae))) {
|
kfree(hdrae);
|
return -EFAULT;
|
}
|
|
gc1054_ioctl(sd, cmd, hdrae);
|
kfree(hdrae);
|
break;
|
|
default:
|
ret = -ENOIOCTLCMD;
|
break;
|
}
|
return ret;
|
}
|
#endif
|
|
static int __gc1054_start_stream(struct gc1054 *gc1054)
|
{
|
int ret;
|
|
ret = gc1054_write_array(gc1054->client, gc1054->cur_mode->reg_list);
|
if (ret)
|
return ret;
|
|
/* In case these controls are set before streaming */
|
mutex_unlock(&gc1054->mutex);
|
ret = v4l2_ctrl_handler_setup(&gc1054->ctrl_handler);
|
mutex_lock(&gc1054->mutex);
|
if (ret)
|
return ret;
|
|
return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE,
|
GC1054_MODE_STREAMING);
|
}
|
|
static int __gc1054_stop_stream(struct gc1054 *gc1054)
|
{
|
return gc1054_write_reg(gc1054->client, GC1054_REG_CTRL_MODE,
|
GC1054_MODE_SW_STANDBY);
|
}
|
|
static int gc1054_s_stream(struct v4l2_subdev *sd, int on)
|
{
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
struct i2c_client *client = gc1054->client;
|
int ret = 0;
|
|
mutex_lock(&gc1054->mutex);
|
on = !!on;
|
if (on == gc1054->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 = __gc1054_start_stream(gc1054);
|
if (ret) {
|
v4l2_err(sd, "start stream failed while write regs\n");
|
pm_runtime_put(&client->dev);
|
goto unlock_and_return;
|
}
|
} else {
|
__gc1054_stop_stream(gc1054);
|
pm_runtime_put(&client->dev);
|
}
|
|
gc1054->streaming = on;
|
|
unlock_and_return:
|
mutex_unlock(&gc1054->mutex);
|
return 0;
|
}
|
|
static int gc1054_g_frame_interval(struct v4l2_subdev *sd,
|
struct v4l2_subdev_frame_interval *fi)
|
{
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
const struct gc1054_mode *mode = gc1054->cur_mode;
|
|
mutex_lock(&gc1054->mutex);
|
fi->interval = mode->max_fps;
|
mutex_unlock(&gc1054->mutex);
|
|
return 0;
|
}
|
|
static int gc1054_s_power(struct v4l2_subdev *sd, int on)
|
{
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
struct i2c_client *client = gc1054->client;
|
int ret = 0;
|
|
mutex_lock(&gc1054->mutex);
|
|
/* If the power state is not modified - no work to do. */
|
if (gc1054->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;
|
}
|
|
gc1054->power_on = true;
|
} else {
|
pm_runtime_put(&client->dev);
|
gc1054->power_on = false;
|
}
|
|
unlock_and_return:
|
mutex_unlock(&gc1054->mutex);
|
|
return ret;
|
}
|
|
/* Calculate the delay in us by clock rate and clock cycles */
|
static inline u32 gc1054_cal_delay(u32 cycles)
|
{
|
return DIV_ROUND_UP(cycles, GC1054_XVCLK_FREQ / 1000 / 1000);
|
}
|
|
static int __gc1054_power_on(struct gc1054 *gc1054)
|
{
|
int ret;
|
u32 delay_us;
|
struct device *dev = &gc1054->client->dev;
|
|
ret = clk_set_rate(gc1054->xvclk, GC1054_XVCLK_FREQ);
|
if (ret < 0) {
|
dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
|
return ret;
|
}
|
if (clk_get_rate(gc1054->xvclk) != GC1054_XVCLK_FREQ)
|
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
|
ret = clk_prepare_enable(gc1054->xvclk);
|
if (ret < 0) {
|
dev_err(dev, "Failed to enable xvclk\n");
|
return ret;
|
}
|
|
if (!IS_ERR(gc1054->reset_gpio))
|
gpiod_set_value_cansleep(gc1054->reset_gpio, 1);
|
|
ret = regulator_bulk_enable(GC1054_NUM_SUPPLIES, gc1054->supplies);
|
if (ret < 0) {
|
dev_err(dev, "Failed to enable regulators\n");
|
goto disable_clk;
|
}
|
|
/* According to datasheet, at least 10ms for reset duration */
|
usleep_range(10 * 1000, 15 * 1000);
|
|
if (!IS_ERR(gc1054->pwdn_gpio))
|
gpiod_set_value_cansleep(gc1054->pwdn_gpio, 0);
|
usleep_range(5 * 1000, 10 * 1000);
|
|
if (!IS_ERR(gc1054->reset_gpio))
|
gpiod_set_value_cansleep(gc1054->reset_gpio, 0);
|
|
/* 8192 cycles prior to first SCCB transaction */
|
delay_us = gc1054_cal_delay(8192);
|
usleep_range(delay_us, delay_us * 2);
|
|
return 0;
|
|
disable_clk:
|
clk_disable_unprepare(gc1054->xvclk);
|
|
return ret;
|
}
|
|
static void __gc1054_power_off(struct gc1054 *gc1054)
|
{
|
if (!IS_ERR(gc1054->pwdn_gpio))
|
gpiod_set_value_cansleep(gc1054->pwdn_gpio, 1);
|
clk_disable_unprepare(gc1054->xvclk);
|
if (!IS_ERR(gc1054->reset_gpio))
|
gpiod_set_value_cansleep(gc1054->reset_gpio, 1);
|
regulator_bulk_disable(GC1054_NUM_SUPPLIES, gc1054->supplies);
|
}
|
|
static int gc1054_runtime_resume(struct device *dev)
|
{
|
struct i2c_client *client = to_i2c_client(dev);
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
|
return __gc1054_power_on(gc1054);
|
}
|
|
static int gc1054_runtime_suspend(struct device *dev)
|
{
|
struct i2c_client *client = to_i2c_client(dev);
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
|
__gc1054_power_off(gc1054);
|
|
return 0;
|
}
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
static int gc1054_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
{
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
struct v4l2_mbus_framefmt *try_fmt =
|
v4l2_subdev_get_try_format(sd, fh->pad, 0);
|
const struct gc1054_mode *def_mode = &supported_modes[0];
|
|
mutex_lock(&gc1054->mutex);
|
/* Initialize try_fmt */
|
try_fmt->width = def_mode->width;
|
try_fmt->height = def_mode->height;
|
try_fmt->code = PIX_FORMAT;
|
try_fmt->field = V4L2_FIELD_NONE;
|
mutex_unlock(&gc1054->mutex);
|
/* No crop or compose */
|
|
return 0;
|
}
|
#endif
|
|
static int gc1054_g_mbus_config(struct v4l2_subdev *sd,
|
struct v4l2_mbus_config *config)
|
{
|
config->type = V4L2_MBUS_PARALLEL;
|
config->flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH |
|
V4L2_MBUS_VSYNC_ACTIVE_LOW |
|
V4L2_MBUS_PCLK_SAMPLE_RISING;
|
return 0;
|
}
|
|
static int gc1054_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;
|
|
if (fie->code != PIX_FORMAT)
|
return -EINVAL;
|
|
fie->code = GC1054_MEDIA_BUS_FMT;
|
fie->width = supported_modes[fie->index].width;
|
fie->height = supported_modes[fie->index].height;
|
fie->interval = supported_modes[fie->index].max_fps;
|
return 0;
|
}
|
static const struct dev_pm_ops gc1054_pm_ops = {
|
SET_RUNTIME_PM_OPS(gc1054_runtime_suspend,
|
gc1054_runtime_resume, NULL)
|
};
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
static const struct v4l2_subdev_internal_ops gc1054_internal_ops = {
|
.open = gc1054_open,
|
};
|
#endif
|
static const struct v4l2_subdev_core_ops gc1054_core_ops = {
|
.s_power = gc1054_s_power,
|
.ioctl = gc1054_ioctl,
|
#ifdef CONFIG_COMPAT
|
.compat_ioctl32 = gc1054_compat_ioctl32,
|
#endif
|
};
|
|
static const struct v4l2_subdev_video_ops gc1054_video_ops = {
|
.s_stream = gc1054_s_stream,
|
.g_frame_interval = gc1054_g_frame_interval,
|
.g_mbus_config = gc1054_g_mbus_config,
|
};
|
|
static const struct v4l2_subdev_pad_ops gc1054_pad_ops = {
|
.enum_mbus_code = gc1054_enum_mbus_code,
|
.enum_frame_size = gc1054_enum_frame_sizes,
|
.enum_frame_interval = gc1054_enum_frame_interval,
|
.get_fmt = gc1054_get_fmt,
|
.set_fmt = gc1054_set_fmt,
|
.get_selection = gc1054_get_selection,
|
};
|
|
static const struct v4l2_subdev_ops gc1054_subdev_ops = {
|
.core = &gc1054_core_ops,
|
.video = &gc1054_video_ops,
|
.pad = &gc1054_pad_ops,
|
};
|
|
static uint32_t gain_level_table[12] = {
|
64,
|
91,
|
127,
|
182,
|
258,
|
369,
|
516,
|
738,
|
1032,
|
1491,
|
2084,
|
0xffffffff,
|
};
|
|
static int gc1054_set_gain(struct gc1054 *gc1054, u32 gain)
|
{
|
|
int Analog_Index;
|
u32 tol_dig_gain = 0;
|
static int total;
|
|
total = sizeof(gain_level_table) / sizeof(u32) - 1;
|
|
for (Analog_Index = 0; Analog_Index < total; Analog_Index++) {
|
if ((gain_level_table[Analog_Index] <= gain) &&
|
(gain < gain_level_table[Analog_Index+1]))
|
break;
|
}
|
|
tol_dig_gain = gain*64/gain_level_table[Analog_Index];
|
gc1054_write_reg(gc1054->client, 0xfe, 0x01);
|
gc1054_write_reg(gc1054->client, 0xb6, Analog_Index);
|
gc1054_write_reg(gc1054->client, 0xb1, (tol_dig_gain>>6));
|
gc1054_write_reg(gc1054->client, 0xb2, ((tol_dig_gain&0x3f)<<2));
|
gc1054_write_reg(gc1054->client, 0xfe, 0x00);
|
|
return 0;
|
}
|
|
static int gc1054_set_ctrl(struct v4l2_ctrl *ctrl)
|
{
|
struct gc1054 *gc1054 = container_of(ctrl->handler,
|
struct gc1054, ctrl_handler);
|
struct i2c_client *client = gc1054->client;
|
s64 max;
|
int ret = 0;
|
u32 vts = 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 = gc1054->cur_mode->height + ctrl->val - 4;
|
__v4l2_ctrl_modify_range(gc1054->exposure,
|
gc1054->exposure->minimum, max,
|
gc1054->exposure->step,
|
gc1054->exposure->default_value);
|
break;
|
}
|
|
if (!pm_runtime_get_if_in_use(&client->dev))
|
return 0;
|
|
switch (ctrl->id) {
|
case V4L2_CID_EXPOSURE:
|
ret = gc1054_write_reg(gc1054->client, GC1054_REG_EXP_H,
|
(ctrl->val >> 8) & 0x3f);
|
ret |= gc1054_write_reg(gc1054->client, GC1054_REG_EXP_L,
|
ctrl->val & 0xff);
|
break;
|
case V4L2_CID_ANALOGUE_GAIN:
|
gc1054_set_gain(gc1054, ctrl->val);
|
break;
|
case V4L2_CID_VBLANK:
|
vts = ctrl->val + gc1054->cur_mode->height;
|
ret = gc1054_write_reg(gc1054->client,
|
GC1054_REG_VTS_H,
|
(vts >> 8) & 0x3f);
|
ret |= gc1054_write_reg(gc1054->client,
|
GC1054_REG_VTS_L,
|
vts & 0xff);
|
break;
|
case V4L2_CID_HFLIP:
|
break;
|
case V4L2_CID_VFLIP:
|
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 gc1054_ctrl_ops = {
|
.s_ctrl = gc1054_set_ctrl,
|
};
|
|
static int gc1054_initialize_controls(struct gc1054 *gc1054)
|
{
|
const struct gc1054_mode *mode;
|
struct v4l2_ctrl_handler *handler;
|
s64 exposure_max, vblank_def;
|
u32 h_blank;
|
int ret;
|
|
handler = &gc1054->ctrl_handler;
|
mode = gc1054->cur_mode;
|
ret = v4l2_ctrl_handler_init(handler, 8);
|
|
if (ret)
|
return ret;
|
handler->lock = &gc1054->mutex;
|
|
v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
|
0, GC1054_PIXEL_RATE, 1, GC1054_PIXEL_RATE);
|
|
h_blank = mode->hts_def - mode->width;
|
gc1054->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
|
h_blank, h_blank, 1, h_blank);
|
|
if (gc1054->hblank)
|
gc1054->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
|
|
vblank_def = mode->vts_def - mode->height;
|
gc1054->vblank = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
|
V4L2_CID_VBLANK, vblank_def,
|
GC1054_VTS_MAX - mode->height,
|
1, vblank_def);
|
|
exposure_max = mode->vts_def;
|
//exposure_max = mode->vts_def - 4;
|
gc1054->exposure = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
|
V4L2_CID_EXPOSURE,
|
GC1054_EXPOSURE_MIN,
|
exposure_max,
|
GC1054_EXPOSURE_STEP,
|
mode->exp_def);
|
|
gc1054->anal_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
|
V4L2_CID_ANALOGUE_GAIN,
|
GC1054_GAIN_MIN,
|
GC1054_GAIN_MAX,
|
GC1054_GAIN_STEP,
|
GC1054_GAIN_DEFAULT);
|
|
/* Digital gain */
|
gc1054->digi_gain = v4l2_ctrl_new_std(handler, &gc1054_ctrl_ops,
|
V4L2_CID_DIGITAL_GAIN,
|
GC1054_GAIN_MIN,
|
GC1054_GAIN_MAX,
|
GC1054_GAIN_STEP,
|
GC1054_GAIN_DEFAULT);
|
|
if (handler->error) {
|
ret = handler->error;
|
dev_err(&gc1054->client->dev,
|
"Failed to init controls(%d)\n", ret);
|
goto err_free_handler;
|
}
|
|
gc1054->subdev.ctrl_handler = handler;
|
// gc1054->digi_gain = GC1054_GAIN_DEFAULT;
|
|
return 0;
|
|
err_free_handler:
|
v4l2_ctrl_handler_free(handler);
|
|
return ret;
|
}
|
|
static int gc1054_check_sensor_id(struct gc1054 *gc1054,
|
struct i2c_client *client)
|
{
|
struct device *dev = &gc1054->client->dev;
|
u8 pid = 0, ver = 0;
|
u16 id = 0;
|
int ret = 0;
|
|
/* Check sensor revision */
|
ret = gc1054_read_reg(client, GC1054_REG_CHIP_ID_H, &pid);
|
ret |= gc1054_read_reg(client, GC1054_REG_CHIP_ID_L, &ver);
|
if (ret) {
|
dev_err(&client->dev, "gc1054_read_reg failed (%d)\n", ret);
|
return ret;
|
}
|
id = SENSOR_ID(pid, ver);
|
if (id != GC1054_CHIP_ID) {
|
dev_err(&client->dev,
|
"Sensor detection failed (%04X,%d)\n",
|
id, ret);
|
return -ENODEV;
|
}
|
|
dev_info(dev, "Detected GC%04x sensor\n", id);
|
return 0;
|
}
|
|
static int gc1054_configure_regulators(struct gc1054 *gc1054)
|
{
|
u32 i;
|
|
for (i = 0; i < GC1054_NUM_SUPPLIES; i++)
|
gc1054->supplies[i].supply = gc1054_supply_names[i];
|
|
return devm_regulator_bulk_get(&gc1054->client->dev,
|
GC1054_NUM_SUPPLIES,
|
gc1054->supplies);
|
}
|
static int gc1054_probe(struct i2c_client *client,
|
const struct i2c_device_id *id)
|
{
|
struct device *dev = &client->dev;
|
struct device_node *node = dev->of_node;
|
struct gc1054 *gc1054;
|
struct v4l2_subdev *sd;
|
char facing[2];
|
int ret;
|
|
dev_info(dev, "driver version: %02x.%02x.%02x",
|
DRIVER_VERSION >> 16,
|
(DRIVER_VERSION & 0xff00) >> 8,
|
DRIVER_VERSION & 0x00ff);
|
|
gc1054 = devm_kzalloc(dev, sizeof(*gc1054), GFP_KERNEL);
|
if (!gc1054)
|
return -ENOMEM;
|
|
gc1054->client = client;
|
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
|
&gc1054->module_index);
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
|
&gc1054->module_facing);
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
|
&gc1054->module_name);
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
|
&gc1054->len_name);
|
if (ret) {
|
dev_err(dev,
|
"could not get module information!\n");
|
return -EINVAL;
|
}
|
|
gc1054->client = client;
|
gc1054->cur_mode = &supported_modes[0];
|
gc1054->xvclk = devm_clk_get(&client->dev, "xvclk");
|
if (IS_ERR(gc1054->xvclk)) {
|
dev_err(&client->dev, "Failed to get xvclk\n");
|
return -EINVAL;
|
}
|
|
gc1054->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
|
if (IS_ERR(gc1054->reset_gpio))
|
dev_warn(dev, "Failed to get reset-gpios\n");
|
|
gc1054->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
|
if (IS_ERR(gc1054->pwdn_gpio))
|
dev_info(dev, "Failed to get pwdn-gpios, maybe no used\n");
|
|
ret = gc1054_configure_regulators(gc1054);
|
if (ret) {
|
dev_err(dev, "Failed to get power regulators\n");
|
return ret;
|
}
|
|
mutex_init(&gc1054->mutex);
|
|
sd = &gc1054->subdev;
|
v4l2_i2c_subdev_init(sd, client, &gc1054_subdev_ops);
|
ret = gc1054_initialize_controls(gc1054);
|
if (ret)
|
goto err_destroy_mutex;
|
|
ret = __gc1054_power_on(gc1054);
|
if (ret)
|
goto err_free_handler;
|
|
ret = gc1054_check_sensor_id(gc1054, client);
|
if (ret)
|
goto err_power_off;
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
sd->internal_ops = &gc1054_internal_ops;
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
#endif
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
gc1054->pad.flags = MEDIA_PAD_FL_SOURCE;
|
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
|
ret = media_entity_pads_init(&sd->entity, 1, &gc1054->pad);
|
if (ret < 0)
|
goto err_power_off;
|
#endif
|
|
memset(facing, 0, sizeof(facing));
|
if (strcmp(gc1054->module_facing, "back") == 0)
|
facing[0] = 'b';
|
else
|
facing[0] = 'f';
|
|
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
|
gc1054->module_index, facing,
|
GC1054_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:
|
__gc1054_power_off(gc1054);
|
err_free_handler:
|
v4l2_ctrl_handler_free(&gc1054->ctrl_handler);
|
|
err_destroy_mutex:
|
mutex_destroy(&gc1054->mutex);
|
return ret;
|
}
|
|
static int gc1054_remove(struct i2c_client *client)
|
{
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
struct gc1054 *gc1054 = to_gc1054(sd);
|
|
v4l2_async_unregister_subdev(sd);
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
media_entity_cleanup(&sd->entity);
|
#endif
|
v4l2_ctrl_handler_free(&gc1054->ctrl_handler);
|
mutex_destroy(&gc1054->mutex);
|
|
pm_runtime_disable(&client->dev);
|
if (!pm_runtime_status_suspended(&client->dev))
|
__gc1054_power_off(gc1054);
|
pm_runtime_set_suspended(&client->dev);
|
return 0;
|
}
|
|
#if IS_ENABLED(CONFIG_OF)
|
static const struct of_device_id gc1054_of_match[] = {
|
{ .compatible = "galaxycore,gc1054" },
|
{},
|
};
|
MODULE_DEVICE_TABLE(of, gc1054_of_match);
|
#endif
|
|
static const struct i2c_device_id gc1054_match_id[] = {
|
{ "galaxycore,gc1054", 0 },
|
{ },
|
};
|
|
static struct i2c_driver gc1054_i2c_driver = {
|
.driver = {
|
.name = GC1054_NAME,
|
.pm = &gc1054_pm_ops,
|
.of_match_table = of_match_ptr(gc1054_of_match),
|
},
|
.probe = &gc1054_probe,
|
.remove = &gc1054_remove,
|
.id_table = gc1054_match_id,
|
};
|
|
static int __init sensor_mod_init(void)
|
{
|
return i2c_add_driver(&gc1054_i2c_driver);
|
}
|
|
static void __exit sensor_mod_exit(void)
|
{
|
i2c_del_driver(&gc1054_i2c_driver);
|
}
|
|
device_initcall_sync(sensor_mod_init);
|
module_exit(sensor_mod_exit);
|
|
MODULE_DESCRIPTION("GC1054 CMOS Image Sensor driver");
|
MODULE_LICENSE("GPL v2");
|
