1527 lines
34 KiB
C
1527 lines
34 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* BF3925 CMOS Image Sensor driver
|
|
*
|
|
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
|
|
* V0.0X01.0X01 add enum_frame_interval function.
|
|
* V0.0X01.0X02 add quick stream on/off
|
|
*/
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/err.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/io.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/media.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_graph.h>
|
|
#include <linux/of_gpio.h>
|
|
|
|
#include <linux/regulator/consumer.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/videodev2.h>
|
|
#include <linux/rk-camera-module.h>
|
|
#include <linux/version.h>
|
|
#include <media/media-entity.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-image-sizes.h>
|
|
#include <media/v4l2-mediabus.h>
|
|
#include <media/v4l2-subdev.h>
|
|
|
|
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x2)
|
|
#define DRIVER_NAME "bf3925"
|
|
#define BF3925_PIXEL_RATE (120 * 1000 * 1000)
|
|
|
|
/*
|
|
* BF3925 register definitions
|
|
*/
|
|
#define REG_SOFTWARE_STANDBY 0xf2
|
|
|
|
#define REG_SC_CHIP_ID_H 0xfc
|
|
#define REG_SC_CHIP_ID_L 0xfd
|
|
|
|
#define REG_NULL 0xFFFF /* Array end token */
|
|
|
|
#define SENSOR_ID(_msb, _lsb) ((_msb) << 8 | (_lsb))
|
|
#define BF3925_ID 0x3925
|
|
|
|
struct sensor_register {
|
|
u16 addr;
|
|
u8 value;
|
|
};
|
|
|
|
struct bf3925_framesize {
|
|
u16 width;
|
|
u16 height;
|
|
struct v4l2_fract max_fps;
|
|
u16 max_exp_lines;
|
|
const struct sensor_register *regs;
|
|
};
|
|
|
|
struct bf3925_pll_ctrl {
|
|
u8 ctrl1;
|
|
u8 ctrl2;
|
|
u8 ctrl3;
|
|
};
|
|
|
|
struct bf3925_pixfmt {
|
|
u32 code;
|
|
/* Output format Register Value (REG_FORMAT_CTRL00) */
|
|
struct sensor_register *format_ctrl_regs;
|
|
};
|
|
|
|
struct pll_ctrl_reg {
|
|
unsigned int div;
|
|
unsigned char reg;
|
|
};
|
|
|
|
static const char * const bf3925_supply_names[] = {
|
|
"dovdd", /* Digital I/O power */
|
|
"avdd", /* Analog power */
|
|
"dvdd", /* Digital core power */
|
|
};
|
|
|
|
#define BF3925_NUM_SUPPLIES ARRAY_SIZE(bf3925_supply_names)
|
|
|
|
struct bf3925 {
|
|
struct v4l2_subdev sd;
|
|
struct media_pad pad;
|
|
struct v4l2_mbus_framefmt format;
|
|
unsigned int fps;
|
|
unsigned int xvclk_frequency;
|
|
struct clk *xvclk;
|
|
struct gpio_desc *power_gpio;
|
|
struct gpio_desc *reset_gpio;
|
|
struct gpio_desc *pwdn_gpio;
|
|
struct gpio_desc *pwdn2_gpio;
|
|
struct regulator_bulk_data supplies[BF3925_NUM_SUPPLIES];
|
|
struct mutex lock;
|
|
struct i2c_client *client;
|
|
struct v4l2_ctrl_handler ctrls;
|
|
struct v4l2_ctrl *link_frequency;
|
|
const struct bf3925_framesize *frame_size;
|
|
int streaming;
|
|
u32 module_index;
|
|
const char *module_facing;
|
|
const char *module_name;
|
|
const char *len_name;
|
|
};
|
|
|
|
static const struct sensor_register bf3925_init_regs[] = {
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x50, 0x00}, //bit[4]: digital subsample Data format selection
|
|
{0x51, 0x02}, //YUV Sequence
|
|
{0xe0, 0x00},
|
|
{0xe2, 0x64},
|
|
{0xe3, 0x48},
|
|
{0xe4, 0x83}, //Drive capability //0x81 ljx
|
|
{0xe7, 0x9b},
|
|
|
|
//clock, dummy
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0xe9, 0x2a}, //08 PLL setting
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x01, 0x00},
|
|
{0x02, 0x90}, //Dummy Pixel Insert LSB
|
|
{0x03, 0x00}, ///02 //yang
|
|
{0x04, 0x00}, //Dummy line Insert LSB
|
|
{0xff, 0x01},
|
|
{0xe5, 0x32},
|
|
//init black
|
|
{0xff, 0x00},
|
|
{0x3d, 0x00},
|
|
{0x30, 0x61},
|
|
{0x31, 0x63},
|
|
{0x32, 0x60},
|
|
{0x33, 0x63},
|
|
|
|
//resolution
|
|
{0xff, 0x00},
|
|
{0x05, 0xa2}, ///a0
|
|
{0x09, 0x90}, ///00
|
|
{0x0a, 0x48},
|
|
{0x0b, 0x60},
|
|
{0x0c, 0x00},
|
|
{0x0d, 0xb8},
|
|
{0x0e, 0x40},
|
|
{0xff, 0x01},
|
|
{0x52, 0x01}, //Bit[1]: VSYNC option Bit[0]: HSYNC option
|
|
{0x5d, 0x02},
|
|
{0x5a, 0x00},
|
|
{0x5b, 0x00},
|
|
{0x5c, 0x00},
|
|
{0xff, 0x01},
|
|
{0x53, 0x30}, ///60
|
|
{0x54, 0x20}, ///40
|
|
{0x55, 0x00},
|
|
{0x56, 0x20}, ///40
|
|
{0x57, 0x00},
|
|
{0x58, 0x58}, ///b0
|
|
{0xff, 0x01},
|
|
{0x50, 0x00}, //bit[4]: digital subsample Data format selection
|
|
|
|
//initial AWB and AE
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xb2, 0x81}, //Manual AWB & AE
|
|
{0xb0, 0x16},
|
|
{0xb1, 0x1d},
|
|
{0xb2, 0x89},
|
|
{0xff, 0x01},
|
|
{0x00, 0x00},
|
|
{0x0e, 0x0a},
|
|
{0x0f, 0x64},
|
|
{0x10, 0x28},
|
|
{0x00, 0x05},
|
|
|
|
//black control
|
|
{0xff, 0x00},
|
|
{0x3c, 0x97},
|
|
|
|
//black sun
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0xe1, 0xf8}, //28 bit[7:4]: Pixel bias current
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x00, 0x47}, //bit[6]: black sun control bit[5:4]: mirror/flip
|
|
{0x18, 0x0c}, //PRST indoor
|
|
{0x19, 0x1a}, //PRST outdoor
|
|
|
|
//lens shading
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x52, 0x13},
|
|
{0x53, 0x5c},
|
|
{0x54, 0x24},
|
|
{0x55, 0x13},
|
|
{0x56, 0x5c},
|
|
{0x57, 0x24},
|
|
{0x58, 0xd3},
|
|
{0x59, 0x5c},
|
|
{0x5a, 0x24},
|
|
{0x5b, 0x44}, ///46 lens shading gain of R
|
|
{0x5c, 0x3C}, ///43 lens shading gain of G1
|
|
{0x5d, 0x40}, //lens shading gain of B
|
|
{0x5e, 0x3C}, /// 43lens shading gain of G0
|
|
|
|
#if 0
|
|
/*gamma default */
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x60, 0x30},
|
|
{0x61, 0x2a},
|
|
{0x62, 0x24},
|
|
{0x63, 0x1b},
|
|
{0x64, 0x18},
|
|
{0x65, 0x16},
|
|
{0x66, 0x14},
|
|
{0x67, 0x12},
|
|
{0x68, 0x10},
|
|
{0x69, 0x0e},
|
|
{0x6a, 0x0d},
|
|
{0x6b, 0x0c},
|
|
{0x6c, 0x0a},
|
|
{0x6d, 0x09},
|
|
{0x6e, 0x09},
|
|
#endif
|
|
{0x6f, 0xf0},
|
|
{0x70, 0x20},
|
|
{0x71, 0x60},
|
|
{0x72, 0x24},///10
|
|
{0x73, 0x24},///10
|
|
#if 1
|
|
//gamma hi-lit,nice over-ex.
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x60, 0x33},
|
|
{0x61, 0x2b},
|
|
{0x62, 0x27},
|
|
{0x63, 0x22},
|
|
{0x64, 0x1b},
|
|
{0x65, 0x17},
|
|
{0x66, 0x14},
|
|
{0x67, 0x11},
|
|
{0x68, 0x0e},
|
|
{0x69, 0x0c},
|
|
{0x6a, 0x0b},
|
|
{0x6b, 0x0a},
|
|
{0x6c, 0x09},
|
|
{0x6d, 0x08},
|
|
{0x6e, 0x07},
|
|
#else
|
|
//gamma nice color
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x60, 0x28},
|
|
{0x61, 0x28},
|
|
{0x62, 0x26},
|
|
{0x63, 0x22},
|
|
{0x64, 0x1f},
|
|
{0x65, 0x1c},
|
|
{0x66, 0x18},
|
|
{0x67, 0x13},
|
|
{0x68, 0x10},
|
|
{0x69, 0x0d},
|
|
{0x6a, 0x0c},
|
|
{0x6b, 0x0a},
|
|
{0x6c, 0x08},
|
|
{0x6d, 0x07},
|
|
{0x6e, 0x06},
|
|
|
|
///gamma low denoise
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x60, 0x24},
|
|
{0x61, 0x30},
|
|
{0x62, 0x20},
|
|
{0x63, 0x1a},
|
|
{0x64, 0x16},
|
|
{0x65, 0x13},
|
|
{0x66, 0x11},
|
|
{0x67, 0x0e},
|
|
{0x68, 0x0d},
|
|
{0x69, 0x0c},
|
|
{0x6a, 0x0b},
|
|
{0x6b, 0x09},
|
|
{0x6c, 0x09},
|
|
{0x6d, 0x08},
|
|
{0x6e, 0x07},
|
|
#endif
|
|
|
|
#if 1
|
|
//clearer
|
|
//denoise and edge enhancement
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x80, 0x0f},
|
|
{0x81, 0x1e},
|
|
{0x83, 0x37}, //0x83[7:4]: de_noise threshhole; 0x83[3:0]: de_noise
|
|
{0x84, 0xe6},
|
|
{0x85, 0x00},
|
|
{0x86, 0xfc},
|
|
{0x87, 0x00},
|
|
{0x88, 0xa2}, //bit[7:6] 0 is low noise;
|
|
{0x89, 0xca},
|
|
{0x8a, 0x44},
|
|
{0x8b, 0x12},
|
|
{0x91, 0x48},
|
|
{0x92, 0x11},
|
|
{0x93, 0x0c},
|
|
#else
|
|
//denoise and edge enhancement
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x80, 0x0f},
|
|
{0x81, 0x0c},
|
|
{0x83, 0x27}, //0x83[7:4]: de_noise threshhole; 0x83[3:0]: de_noise
|
|
{0x84, 0xe6},
|
|
{0x85, 0x88},
|
|
{0x86, 0xfa},
|
|
{0x87, 0x1a},
|
|
{0x88, 0xa2}, //bit[7:6] 0 is low noise;
|
|
{0x89, 0xca},
|
|
{0x8b, 0x11}, //12 Bright/Dark edge enhancement
|
|
{0x91, 0x48}, //45 0x91:40
|
|
#endif
|
|
|
|
//AWB
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xa2, 0x06}, //the low limit of blue gain for indoor scene
|
|
{0xa3, 0x28}, //the upper limit of blue gain for indoor scene
|
|
{0xa4, 0x0a}, //the low limit of red gain for indoor scene
|
|
{0xa5, 0x2c}, //the upper limit of red gain for indoor scene
|
|
{0xa7, 0x1b}, //Base B gain
|
|
{0xa8, 0x14}, //Base R gain
|
|
{0xa9, 0x15},
|
|
{0xaa, 0x18},
|
|
{0xab, 0x26},
|
|
{0xac, 0x5c},
|
|
{0xae, 0x47},
|
|
{0xb2, 0x89},
|
|
{0xb3, 0x66}, // green gain
|
|
{0xb4, 0x03}, //the offset of F light
|
|
{0xb5, 0x00}, //the offset of non-F light
|
|
{0xb6, 0xd9}, //bit[7]: outdoor control
|
|
{0xb8, 0xca},
|
|
{0xbb, 0x0d},
|
|
{0xbc, 0x15},
|
|
{0xbd, 0x09},
|
|
{0xbe, 0x24},
|
|
{0xbf, 0x66},
|
|
|
|
#if 1
|
|
// color default
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xc0, 0x8a},
|
|
{0xc1, 0x05},
|
|
{0xc2, 0x84},
|
|
{0xc3, 0x86},
|
|
{0xc4, 0x03},
|
|
{0xc5, 0x93},
|
|
|
|
#else
|
|
//color Gorgeous
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xc0, 0x83},
|
|
{0xc1, 0x86},
|
|
{0xc2, 0x82},
|
|
{0xc3, 0x8a},
|
|
{0xc4, 0x07},
|
|
{0xc5, 0x9f},
|
|
|
|
//color light
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xc0, 0x83},
|
|
{0xc1, 0x02},
|
|
{0xc2, 0x84},
|
|
{0xc3, 0x84},
|
|
{0xc4, 0x03},
|
|
{0xc5, 0x8d},
|
|
#endif
|
|
|
|
// A color
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xc6, 0x8a},
|
|
{0xc7, 0x82},
|
|
{0xc8, 0x8b},
|
|
{0xc9, 0x87},
|
|
{0xca, 0x83},
|
|
{0xcb, 0x91},
|
|
|
|
//Outdoor color
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0xd0, 0x90},
|
|
{0xd1, 0x05},
|
|
{0xd2, 0x82},
|
|
{0xd3, 0x88},
|
|
{0xd4, 0x03},
|
|
{0xd5, 0x93},
|
|
{0xcd, 0x30},
|
|
{0xd6, 0x61},
|
|
|
|
//AE
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x00, 0x05},
|
|
{0x01, 0x8a}, // AE window and weight
|
|
{0x04, 0x48}, //4f AE Target//40
|
|
{0x05, 0x48}, //4f Y target value1//48
|
|
{0x07, 0x92}, //Bit[3:2]: the bigger, Y_AVER_MODIFY is smaller
|
|
{0x09, 0x8a}, //92 Bit[5:0]: INT_MAX//8c
|
|
{0x0a, 0xa5},
|
|
{0x0b, 0x82}, //Bit[5:0]: INT_MIN
|
|
{0x0c, 0xb4}, //78 50hz banding
|
|
{0x0d, 0x96}, //64 60hz banding
|
|
{0x15, 0x02}, //AEC
|
|
{0x16, 0x8c},
|
|
{0x17, 0xb5},
|
|
{0x18, 0x50}, ///30
|
|
{0x1b, 0x30}, ///33 minimum global gain
|
|
{0x1c, 0x58}, ///66
|
|
{0x1d, 0x38}, ///55
|
|
{0x1e, 0x58}, ///80
|
|
{0x1f, 0x60}, /// c0 maximum gain//a0
|
|
|
|
// saturation
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x30, 0xff}, ///e0
|
|
{0x31, 0x48},
|
|
{0x32, 0x60}, ///f0
|
|
{0x34, 0xd8}, ///da Cb Saturation Coefficient low 8 bit for NF light
|
|
{0x35, 0xc8}, ///ca Cr Saturation Coefficient low 8 bit for NF light
|
|
{0x36, 0xff}, //Cb Saturation Coefficient low 8 bit for F light
|
|
{0x37, 0xd0}, //Cr Saturation Coefficient low 8 bit for F light
|
|
|
|
//skin
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x3b, 0x08},
|
|
|
|
// auto contrast
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x3e, 0x02}, //
|
|
{0x3e, 0x82}, //do not change
|
|
{0x38, 0x40},
|
|
//yang add start switch to 1600*1200 UXGA
|
|
//1600*1200
|
|
//window
|
|
//yang add end switch to 1600*1200 UXGA
|
|
{REG_NULL, 0x00},
|
|
};
|
|
|
|
/* Senor full resolution setting */
|
|
static const struct sensor_register bf3925_full_regs[] = {
|
|
//1600*1200
|
|
//window
|
|
{0xff, 0x00},
|
|
{0x05, 0xa0},
|
|
{0x09, 0x00},
|
|
{0x0a, 0x48},
|
|
{0x0b, 0x60},
|
|
{0x0c, 0x00},
|
|
{0x0d, 0xb8},
|
|
{0x0e, 0x40},
|
|
{0xff, 0x01},
|
|
{0x52, 0x01}, //Bit[1]: VSYNC option Bit[0]: HSYNC option
|
|
{0x5d, 0x02},
|
|
{0x5a, 0x00},
|
|
{0x5b, 0x00},
|
|
{0x5c, 0x00},
|
|
{0xff, 0x01},
|
|
{0x53, 0x60},
|
|
{0x54, 0x40},
|
|
{0x55, 0x00},
|
|
{0x56, 0x40},
|
|
{0x57, 0x00},
|
|
{0x58, 0xb0},
|
|
{0xff, 0x01},
|
|
{0x50, 0x00},
|
|
|
|
//clock, dummy
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x09, 0x86},
|
|
{0xe9, 0x2a}, //08 PLL setting
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x01, 0x00},
|
|
{0x02, 0x00}, //Dummy Pixel Insert LSB
|
|
{0x03, 0x00}, ///02 //yang
|
|
{0x04, 0x00}, //Dummy line Insert LSB
|
|
|
|
{REG_NULL, 0x00},
|
|
};
|
|
|
|
/* Preview resolution setting*/
|
|
static const struct sensor_register bf3925_svga_regs_15fps[] = {
|
|
//800*600
|
|
//window
|
|
{0xff, 0x00},
|
|
{0x05, 0xa0},
|
|
{0x09, 0x00},
|
|
{0x0a, 0x48},
|
|
{0x0b, 0x60},
|
|
{0x0c, 0x00},
|
|
{0x0d, 0xb8},
|
|
{0x0e, 0x40},
|
|
{0xff, 0x01},
|
|
{0x52, 0x01}, //Bit[1]: VSYNC option Bit[0]: HSYNC option
|
|
{0x5d, 0x02},
|
|
{0x5a, 0x00},
|
|
{0x5b, 0x00},
|
|
{0x5c, 0x00},
|
|
{0xff, 0x01},
|
|
{0x53, 0x30},
|
|
{0x54, 0x20},
|
|
{0x55, 0x02},
|
|
{0x56, 0x22},
|
|
{0x57, 0x01},
|
|
{0x58, 0x59},
|
|
{0xff, 0x01},
|
|
{0x50, 0x00},
|
|
|
|
//clock, dummy
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x09, 0x86},
|
|
{0xe9, 0x2a}, //08 PLL setting
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x01, 0x00},
|
|
{0x02, 0x00}, //Dummy Pixel Insert LSB
|
|
{0x03, 0x00}, ///02 //yang
|
|
{0x04, 0x00}, //Dummy line Insert LSB
|
|
|
|
{REG_NULL, 0x00},
|
|
};
|
|
|
|
/* Preview resolution setting*/
|
|
static const struct sensor_register bf3925_svga_regs_30fps[] = {
|
|
//800*600
|
|
{0xff, 0x00},
|
|
{0x05, 0xa2},
|
|
{0x09, 0x04},
|
|
|
|
{0x0a, 0x4c},
|
|
{0x0b, 0x60},
|
|
{0x0c, 0x04},
|
|
{0x0d, 0xbc},
|
|
{0x0e, 0x40},
|
|
{0xff, 0x01},
|
|
{0x52, 0x01},
|
|
{0x5d, 0x02},
|
|
{0x5a, 0x00},
|
|
{0x5b, 0x00},
|
|
{0x5c, 0x00},
|
|
{0xff, 0x01},
|
|
{0x09, 0x83},
|
|
{0x53, 0x30},
|
|
{0x54, 0x20},
|
|
{0x55, 0x02},
|
|
{0x56, 0x22},
|
|
{0x57, 0x01},
|
|
{0x58, 0x59},
|
|
{0xff, 0x01},
|
|
{0x50, 0x00},
|
|
{0xe9, 0x2a},
|
|
//clock, dummy
|
|
{0xff, 0x01}, //Bit[0]: select reg page
|
|
{0x09, 0x83},
|
|
|
|
/* 08 PLL setting 0x09: 1 times
|
|
* 0x1b: multiply 5/4 0x2b: 3/2 multiply
|
|
* 0x08:double 0x1a: 5/2 multiply
|
|
* 0x2a: triple 0x2a ljx 2017-6
|
|
*/
|
|
{0xe9, 0x08},
|
|
{0xff, 0x00}, //Bit[0]: select reg page
|
|
{0x01, 0x00},
|
|
{0x02, 0xea}, //Dummy Pixel Insert LSB
|
|
{0x03, 0x00}, ///02 //yang
|
|
{0x04, 0x00}, //Dummy line Insert LSB
|
|
|
|
{REG_NULL, 0x00},
|
|
};
|
|
|
|
static const struct bf3925_framesize bf3925_framesizes[] = {
|
|
{ /* SVGA */
|
|
.width = 800,
|
|
.height = 600,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 150000,
|
|
},
|
|
.regs = bf3925_svga_regs_15fps,
|
|
}, { /* SVGA */
|
|
.width = 800,
|
|
.height = 600,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 300000,
|
|
},
|
|
.regs = bf3925_svga_regs_30fps,
|
|
}, { /* FULL */
|
|
.width = 1600,
|
|
.height = 1200,
|
|
.max_fps = {
|
|
.numerator = 10000,
|
|
.denominator = 150000,
|
|
},
|
|
.regs = bf3925_full_regs,
|
|
}
|
|
};
|
|
|
|
static const struct bf3925_pixfmt bf3925_formats[] = {
|
|
{
|
|
.code = MEDIA_BUS_FMT_UYVY8_2X8,
|
|
}
|
|
};
|
|
|
|
static inline struct bf3925 *to_bf3925(struct v4l2_subdev *sd)
|
|
{
|
|
return container_of(sd, struct bf3925, sd);
|
|
}
|
|
|
|
/* sensor register write */
|
|
static int bf3925_write(struct i2c_client *client, u8 reg, u8 val)
|
|
{
|
|
struct i2c_msg msg;
|
|
u8 buf[2];
|
|
int ret;
|
|
|
|
dev_dbg(&client->dev, "write reg(0x%x val:0x%x)!\n", reg, val);
|
|
buf[0] = reg & 0xFF;
|
|
buf[1] = val;
|
|
|
|
msg.addr = client->addr;
|
|
msg.flags = client->flags;
|
|
msg.buf = buf;
|
|
msg.len = sizeof(buf);
|
|
|
|
ret = i2c_transfer(client->adapter, &msg, 1);
|
|
if (ret >= 0)
|
|
return 0;
|
|
|
|
dev_err(&client->dev,
|
|
"bf3925 write reg(0x%x val:0x%x) failed !\n", reg, val);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* sensor register read */
|
|
static int bf3925_read(struct i2c_client *client, u8 reg, u8 *val)
|
|
{
|
|
struct i2c_msg msg[2];
|
|
u8 buf[1];
|
|
int ret;
|
|
|
|
buf[0] = reg & 0xFF;
|
|
|
|
msg[0].addr = client->addr;
|
|
msg[0].flags = client->flags;
|
|
msg[0].buf = buf;
|
|
msg[0].len = sizeof(buf);
|
|
|
|
msg[1].addr = client->addr;
|
|
msg[1].flags = client->flags | I2C_M_RD;
|
|
msg[1].buf = buf;
|
|
msg[1].len = 1;
|
|
|
|
ret = i2c_transfer(client->adapter, msg, 2);
|
|
if (ret >= 0) {
|
|
*val = buf[0];
|
|
return 0;
|
|
}
|
|
|
|
dev_err(&client->dev,
|
|
"bf3925 read reg:0x%x failed !\n", reg);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int bf3925_write_array(struct i2c_client *client,
|
|
const struct sensor_register *regs)
|
|
{
|
|
int i, ret = 0;
|
|
|
|
i = 0;
|
|
while (regs[i].addr != REG_NULL) {
|
|
ret = bf3925_write(client, regs[i].addr, regs[i].value);
|
|
if (ret) {
|
|
dev_err(&client->dev, "%s failed !\n", __func__);
|
|
break;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void bf3925_get_default_format(struct v4l2_mbus_framefmt *format)
|
|
{
|
|
format->width = bf3925_framesizes[0].width;
|
|
format->height = bf3925_framesizes[0].height;
|
|
format->colorspace = V4L2_COLORSPACE_SRGB;
|
|
format->code = bf3925_formats[0].code;
|
|
format->field = V4L2_FIELD_NONE;
|
|
}
|
|
|
|
static void bf3925_set_streaming(struct bf3925 *bf3925, int on)
|
|
{
|
|
struct i2c_client *client = bf3925->client;
|
|
int ret;
|
|
|
|
dev_dbg(&client->dev, "%s: on: %d\n", __func__, on);
|
|
|
|
ret = bf3925_write(client, REG_SOFTWARE_STANDBY, on);
|
|
if (ret)
|
|
dev_err(&client->dev, "bf3925 soft standby failed\n");
|
|
}
|
|
|
|
/*
|
|
* V4L2 subdev video and pad level operations
|
|
*/
|
|
|
|
static int bf3925_enum_mbus_code(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_mbus_code_enum *code)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
|
|
dev_dbg(&client->dev, "%s:\n", __func__);
|
|
|
|
if (code->index >= ARRAY_SIZE(bf3925_formats))
|
|
return -EINVAL;
|
|
|
|
code->code = bf3925_formats[code->index].code;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bf3925_enum_frame_sizes(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_frame_size_enum *fse)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int i = ARRAY_SIZE(bf3925_formats);
|
|
|
|
dev_dbg(&client->dev, "%s:\n", __func__);
|
|
|
|
if (fse->index >= ARRAY_SIZE(bf3925_framesizes))
|
|
return -EINVAL;
|
|
|
|
while (--i)
|
|
if (fse->code == bf3925_formats[i].code)
|
|
break;
|
|
|
|
fse->code = bf3925_formats[i].code;
|
|
|
|
fse->min_width = bf3925_framesizes[fse->index].width;
|
|
fse->max_width = fse->min_width;
|
|
fse->max_height = bf3925_framesizes[fse->index].height;
|
|
fse->min_height = fse->max_height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bf3925_get_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
|
|
dev_dbg(&client->dev, "%s enter\n", __func__);
|
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
struct v4l2_mbus_framefmt *mf;
|
|
|
|
mf = v4l2_subdev_get_try_format(sd, cfg, 0);
|
|
mutex_lock(&bf3925->lock);
|
|
fmt->format = *mf;
|
|
mutex_unlock(&bf3925->lock);
|
|
return 0;
|
|
#else
|
|
return -ENOTTY;
|
|
#endif
|
|
}
|
|
|
|
mutex_lock(&bf3925->lock);
|
|
fmt->format = bf3925->format;
|
|
mutex_unlock(&bf3925->lock);
|
|
|
|
dev_dbg(&client->dev, "%s: %x %dx%d\n", __func__,
|
|
bf3925->format.code, bf3925->format.width,
|
|
bf3925->format.height);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __bf3925_try_frame_size_fps(struct v4l2_mbus_framefmt *mf,
|
|
const struct bf3925_framesize **size,
|
|
unsigned int fps)
|
|
{
|
|
const struct bf3925_framesize *fsize = &bf3925_framesizes[0];
|
|
const struct bf3925_framesize *match = NULL;
|
|
unsigned int i = ARRAY_SIZE(bf3925_framesizes);
|
|
unsigned int min_err = UINT_MAX;
|
|
|
|
while (i--) {
|
|
unsigned int err = abs(fsize->width - mf->width)
|
|
+ abs(fsize->height - mf->height);
|
|
if (err < min_err && fsize->regs[0].addr) {
|
|
min_err = err;
|
|
match = fsize;
|
|
}
|
|
fsize++;
|
|
}
|
|
|
|
if (!match) {
|
|
match = &bf3925_framesizes[0];
|
|
} else {
|
|
fsize = &bf3925_framesizes[0];
|
|
for (i = 0; i < ARRAY_SIZE(bf3925_framesizes); i++) {
|
|
if (fsize->width == match->width &&
|
|
fsize->height == match->height &&
|
|
fps >= DIV_ROUND_CLOSEST(fsize->max_fps.denominator,
|
|
fsize->max_fps.numerator))
|
|
match = fsize;
|
|
|
|
fsize++;
|
|
}
|
|
}
|
|
|
|
mf->width = match->width;
|
|
mf->height = match->height;
|
|
|
|
if (size)
|
|
*size = match;
|
|
}
|
|
|
|
static int bf3925_set_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *fmt)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int index = ARRAY_SIZE(bf3925_formats);
|
|
struct v4l2_mbus_framefmt *mf = &fmt->format;
|
|
const struct bf3925_framesize *size = NULL;
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
int ret = 0;
|
|
|
|
dev_dbg(&client->dev, "%s enter\n", __func__);
|
|
|
|
__bf3925_try_frame_size_fps(mf, &size, bf3925->fps);
|
|
|
|
while (--index >= 0)
|
|
if (bf3925_formats[index].code == mf->code)
|
|
break;
|
|
|
|
if (index < 0)
|
|
return -EINVAL;
|
|
|
|
mf->colorspace = V4L2_COLORSPACE_SRGB;
|
|
mf->code = bf3925_formats[index].code;
|
|
mf->field = V4L2_FIELD_NONE;
|
|
|
|
mutex_lock(&bf3925->lock);
|
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
|
|
*mf = fmt->format;
|
|
#else
|
|
return -ENOTTY;
|
|
#endif
|
|
} else {
|
|
if (bf3925->streaming) {
|
|
mutex_unlock(&bf3925->lock);
|
|
return -EBUSY;
|
|
}
|
|
|
|
bf3925->frame_size = size;
|
|
bf3925->format = fmt->format;
|
|
}
|
|
|
|
mutex_unlock(&bf3925->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int bf3925_s_stream(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
int ret = 0;
|
|
|
|
dev_info(&client->dev, "%s: on: %d, %dx%d\n", __func__, on,
|
|
bf3925->frame_size->width,
|
|
bf3925->frame_size->height);
|
|
|
|
mutex_lock(&bf3925->lock);
|
|
|
|
on = !!on;
|
|
|
|
if (bf3925->streaming == on)
|
|
goto unlock;
|
|
|
|
if (!on) {
|
|
/* Stop Streaming Sequence */
|
|
bf3925_set_streaming(bf3925, 0x02);
|
|
bf3925->streaming = on;
|
|
goto unlock;
|
|
}
|
|
|
|
ret = bf3925_write_array(client, bf3925->frame_size->regs);
|
|
if (ret)
|
|
goto unlock;
|
|
|
|
bf3925_set_streaming(bf3925, 0x00);
|
|
bf3925->streaming = on;
|
|
|
|
unlock:
|
|
mutex_unlock(&bf3925->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int bf3925_set_test_pattern(struct bf3925 *bf3925, int value)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int bf3925_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct bf3925 *bf3925 =
|
|
container_of(ctrl->handler, struct bf3925, ctrls);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_TEST_PATTERN:
|
|
return bf3925_set_test_pattern(bf3925, ctrl->val);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops bf3925_ctrl_ops = {
|
|
.s_ctrl = bf3925_s_ctrl,
|
|
};
|
|
|
|
static const char * const bf3925_test_pattern_menu[] = {
|
|
"Disabled",
|
|
"Vertical Color Bars",
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* V4L2 subdev internal operations
|
|
*/
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
static int bf3925_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct v4l2_mbus_framefmt *format =
|
|
v4l2_subdev_get_try_format(sd, fh->pad, 0);
|
|
|
|
dev_dbg(&client->dev, "%s:\n", __func__);
|
|
|
|
bf3925_get_default_format(format);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int bf3925_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 bf3925_g_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_frame_interval *fi)
|
|
{
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
|
|
mutex_lock(&bf3925->lock);
|
|
fi->interval = bf3925->frame_size->max_fps;
|
|
mutex_unlock(&bf3925->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bf3925_s_frame_interval(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_frame_interval *fi)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
const struct bf3925_framesize *size = NULL;
|
|
struct v4l2_mbus_framefmt mf;
|
|
unsigned int fps;
|
|
int ret = 0;
|
|
|
|
dev_dbg(&client->dev, "Setting %d/%d frame interval\n",
|
|
fi->interval.numerator, fi->interval.denominator);
|
|
|
|
mutex_lock(&bf3925->lock);
|
|
if (bf3925->format.width == 1600)
|
|
goto unlock;
|
|
fps = DIV_ROUND_CLOSEST(fi->interval.denominator,
|
|
fi->interval.numerator);
|
|
mf = bf3925->format;
|
|
__bf3925_try_frame_size_fps(&mf, &size, fps);
|
|
|
|
if (bf3925->frame_size != size) {
|
|
dev_info(&client->dev, "%s match wxh@FPS is %dx%d@%d\n",
|
|
__func__, size->width, size->height,
|
|
DIV_ROUND_CLOSEST(size->max_fps.denominator,
|
|
size->max_fps.numerator));
|
|
ret = bf3925_write_array(client, size->regs);
|
|
if (ret)
|
|
goto unlock;
|
|
bf3925->frame_size = size;
|
|
bf3925->fps = fps;
|
|
}
|
|
unlock:
|
|
mutex_unlock(&bf3925->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void bf3925_get_module_inf(struct bf3925 *bf3925,
|
|
struct rkmodule_inf *inf)
|
|
{
|
|
memset(inf, 0, sizeof(*inf));
|
|
strlcpy(inf->base.sensor, DRIVER_NAME, sizeof(inf->base.sensor));
|
|
strlcpy(inf->base.module, bf3925->module_name,
|
|
sizeof(inf->base.module));
|
|
strlcpy(inf->base.lens, bf3925->len_name, sizeof(inf->base.lens));
|
|
}
|
|
|
|
static long bf3925_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
long ret = 0;
|
|
u32 stream = 0;
|
|
|
|
switch (cmd) {
|
|
case RKMODULE_GET_MODULE_INFO:
|
|
bf3925_get_module_inf(bf3925, (struct rkmodule_inf *)arg);
|
|
break;
|
|
case RKMODULE_SET_QUICK_STREAM:
|
|
stream = *((u32 *)arg);
|
|
if (stream)
|
|
bf3925_set_streaming(bf3925, 0x00);
|
|
else
|
|
bf3925_set_streaming(bf3925, 0x02);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
static long bf3925_compat_ioctl32(struct v4l2_subdev *sd,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
void __user *up = compat_ptr(arg);
|
|
struct rkmodule_inf *inf;
|
|
struct rkmodule_awb_cfg *cfg;
|
|
long ret;
|
|
u32 stream = 0;
|
|
|
|
switch (cmd) {
|
|
case RKMODULE_GET_MODULE_INFO:
|
|
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
|
|
if (!inf) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = bf3925_ioctl(sd, cmd, inf);
|
|
if (!ret)
|
|
ret = copy_to_user(up, inf, sizeof(*inf));
|
|
kfree(inf);
|
|
break;
|
|
case RKMODULE_AWB_CFG:
|
|
cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
|
|
if (!cfg) {
|
|
ret = -ENOMEM;
|
|
return ret;
|
|
}
|
|
|
|
ret = copy_from_user(cfg, up, sizeof(*cfg));
|
|
if (!ret)
|
|
ret = bf3925_ioctl(sd, cmd, cfg);
|
|
kfree(cfg);
|
|
break;
|
|
case RKMODULE_SET_QUICK_STREAM:
|
|
ret = copy_from_user(&stream, up, sizeof(u32));
|
|
if (!ret)
|
|
ret = bf3925_ioctl(sd, cmd, &stream);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static int bf3925_init(struct v4l2_subdev *sd, u32 val)
|
|
{
|
|
int ret;
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
struct i2c_client *client = bf3925->client;
|
|
|
|
dev_info(&client->dev, "%s(%d)\n", __func__, __LINE__);
|
|
/* soft reset */
|
|
ret = bf3925_write(client, 0xf2, 0x03);
|
|
ret = bf3925_write_array(client, bf3925_init_regs);
|
|
return ret;
|
|
}
|
|
|
|
static int bf3925_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
int ret;
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
struct i2c_client *client = bf3925->client;
|
|
struct device *dev = &bf3925->client->dev;
|
|
|
|
dev_info(&client->dev, "%s(%d) on(%d)\n", __func__, __LINE__, on);
|
|
if (on) {
|
|
if (!IS_ERR(bf3925->pwdn_gpio)) {
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 0);
|
|
usleep_range(2000, 5000);
|
|
}
|
|
ret = bf3925_init(sd, 0);
|
|
usleep_range(10000, 20000);
|
|
if (ret)
|
|
dev_err(dev, "init error\n");
|
|
} else {
|
|
if (!IS_ERR(bf3925->pwdn_gpio)) {
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 1);
|
|
usleep_range(2000, 5000);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int bf3925_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(bf3925_framesizes))
|
|
return -EINVAL;
|
|
|
|
if (fie->code != MEDIA_BUS_FMT_UYVY8_2X8)
|
|
return -EINVAL;
|
|
|
|
fie->width = bf3925_framesizes[fie->index].width;
|
|
fie->height = bf3925_framesizes[fie->index].height;
|
|
fie->interval = bf3925_framesizes[fie->index].max_fps;
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_subdev_core_ops bf3925_subdev_core_ops = {
|
|
.log_status = v4l2_ctrl_subdev_log_status,
|
|
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
|
|
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
|
|
.ioctl = bf3925_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl32 = bf3925_compat_ioctl32,
|
|
#endif
|
|
.s_power = bf3925_power,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops bf3925_subdev_video_ops = {
|
|
.s_stream = bf3925_s_stream,
|
|
.g_mbus_config = bf3925_g_mbus_config,
|
|
.g_frame_interval = bf3925_g_frame_interval,
|
|
.s_frame_interval = bf3925_s_frame_interval,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops bf3925_subdev_pad_ops = {
|
|
.enum_mbus_code = bf3925_enum_mbus_code,
|
|
.enum_frame_size = bf3925_enum_frame_sizes,
|
|
.enum_frame_interval = bf3925_enum_frame_interval,
|
|
.get_fmt = bf3925_get_fmt,
|
|
.set_fmt = bf3925_set_fmt,
|
|
};
|
|
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
static const struct v4l2_subdev_ops bf3925_subdev_ops = {
|
|
.core = &bf3925_subdev_core_ops,
|
|
.video = &bf3925_subdev_video_ops,
|
|
.pad = &bf3925_subdev_pad_ops,
|
|
};
|
|
|
|
static const struct v4l2_subdev_internal_ops bf3925_subdev_internal_ops = {
|
|
.open = bf3925_open,
|
|
};
|
|
#endif
|
|
|
|
static int bf3925_detect(struct bf3925 *bf3925)
|
|
{
|
|
struct i2c_client *client = bf3925->client;
|
|
u8 pid, ver;
|
|
int ret;
|
|
|
|
dev_dbg(&client->dev, "%s:\n", __func__);
|
|
|
|
/* Check sensor revision */
|
|
ret = bf3925_read(client, REG_SC_CHIP_ID_H, &pid);
|
|
if (!ret)
|
|
ret = bf3925_read(client, REG_SC_CHIP_ID_L, &ver);
|
|
|
|
if (!ret) {
|
|
unsigned short id;
|
|
|
|
id = SENSOR_ID(pid, ver);
|
|
if (id != BF3925_ID) {
|
|
ret = -1;
|
|
dev_err(&client->dev,
|
|
"Sensor detection failed (%04X, %d)\n",
|
|
id, ret);
|
|
} else {
|
|
dev_info(&client->dev, "Found BF%04X sensor\n", id);
|
|
if (!IS_ERR(bf3925->pwdn_gpio))
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 1);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __bf3925_power_on(struct bf3925 *bf3925)
|
|
{
|
|
int ret;
|
|
struct device *dev = &bf3925->client->dev;
|
|
|
|
dev_info(dev, "power on!!!\n");
|
|
if (!IS_ERR(bf3925->xvclk)) {
|
|
ret = clk_set_rate(bf3925->xvclk, 24000000);
|
|
if (ret < 0)
|
|
dev_info(dev, "Failed to set xvclk rate (24MHz)\n");
|
|
}
|
|
if (!IS_ERR(bf3925->xvclk)) {
|
|
ret = clk_prepare_enable(bf3925->xvclk);
|
|
if (ret < 0)
|
|
dev_info(dev, "Failed to enable xvclk\n");
|
|
}
|
|
usleep_range(7000, 10000);
|
|
|
|
if (!IS_ERR(bf3925->pwdn_gpio)) {
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 1);
|
|
usleep_range(2000, 5000);
|
|
}
|
|
|
|
if (!IS_ERR(bf3925->supplies)) {
|
|
ret = regulator_bulk_enable(BF3925_NUM_SUPPLIES,
|
|
bf3925->supplies);
|
|
if (ret < 0)
|
|
dev_info(dev, "Failed to enable regulators\n");
|
|
|
|
usleep_range(20000, 50000);
|
|
}
|
|
|
|
if (!IS_ERR(bf3925->pwdn2_gpio)) {
|
|
gpiod_set_value_cansleep(bf3925->pwdn2_gpio, 1);
|
|
usleep_range(2000, 5000);
|
|
}
|
|
|
|
if (!IS_ERR(bf3925->pwdn_gpio)) {
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 0);
|
|
usleep_range(2000, 5000);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __bf3925_power_off(struct bf3925 *bf3925)
|
|
{
|
|
if (!IS_ERR(bf3925->xvclk))
|
|
clk_disable_unprepare(bf3925->xvclk);
|
|
if (!IS_ERR(bf3925->supplies))
|
|
regulator_bulk_disable(BF3925_NUM_SUPPLIES, bf3925->supplies);
|
|
if (!IS_ERR(bf3925->pwdn_gpio))
|
|
gpiod_set_value_cansleep(bf3925->pwdn_gpio, 1);
|
|
}
|
|
|
|
static int bf3925_configure_regulators(struct bf3925 *bf3925)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < BF3925_NUM_SUPPLIES; i++)
|
|
bf3925->supplies[i].supply = bf3925_supply_names[i];
|
|
|
|
return devm_regulator_bulk_get(&bf3925->client->dev,
|
|
BF3925_NUM_SUPPLIES,
|
|
bf3925->supplies);
|
|
}
|
|
|
|
static int bf3925_parse_of(struct bf3925 *bf3925)
|
|
{
|
|
struct device *dev = &bf3925->client->dev;
|
|
struct device_node *node = dev->of_node;
|
|
struct gpio_desc *pwdn_gpio;
|
|
unsigned int pwdn = -1;
|
|
enum of_gpio_flags flags;
|
|
int ret;
|
|
|
|
bf3925->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
|
|
if (IS_ERR(bf3925->pwdn_gpio)) {
|
|
dev_info(dev, "Failed to get pwdn-gpios, maybe no use\n");
|
|
pwdn = of_get_named_gpio_flags(node, "pwdn-gpios", 0, &flags);
|
|
pwdn_gpio = gpio_to_desc(pwdn);
|
|
if (IS_ERR(pwdn_gpio))
|
|
dev_info(dev, "Failed to get pwdn-gpios again\n");
|
|
else
|
|
bf3925->pwdn_gpio = pwdn_gpio;
|
|
}
|
|
|
|
bf3925->pwdn2_gpio = devm_gpiod_get(dev, "pwdn2", GPIOD_OUT_LOW);
|
|
if (IS_ERR(bf3925->pwdn2_gpio)) {
|
|
dev_info(dev, "Failed to get pwdn2-gpios, maybe no use\n");
|
|
pwdn = of_get_named_gpio_flags(node, "pwdn2-gpios", 0, &flags);
|
|
pwdn_gpio = gpio_to_desc(pwdn);
|
|
if (IS_ERR(pwdn_gpio))
|
|
dev_info(dev, "Failed to get pwdn2-gpios again\n");
|
|
else
|
|
bf3925->pwdn2_gpio = pwdn_gpio;
|
|
}
|
|
|
|
ret = bf3925_configure_regulators(bf3925);
|
|
if (ret)
|
|
dev_info(dev, "Failed to get power regulators\n");
|
|
|
|
return __bf3925_power_on(bf3925);
|
|
}
|
|
|
|
static int bf3925_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
struct device_node *node = dev->of_node;
|
|
struct v4l2_subdev *sd;
|
|
struct bf3925 *bf3925;
|
|
char facing[2] = "b";
|
|
int ret;
|
|
|
|
dev_info(dev, "driver version: %02x.%02x.%02x",
|
|
DRIVER_VERSION >> 16,
|
|
(DRIVER_VERSION & 0xff00) >> 8,
|
|
DRIVER_VERSION & 0x00ff);
|
|
|
|
bf3925 = devm_kzalloc(&client->dev, sizeof(*bf3925), GFP_KERNEL);
|
|
if (!bf3925)
|
|
return -ENOMEM;
|
|
|
|
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
|
|
&bf3925->module_index);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
|
|
&bf3925->module_facing);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
|
|
&bf3925->module_name);
|
|
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
|
|
&bf3925->len_name);
|
|
if (ret) {
|
|
dev_err(&client->dev, "could not get module information!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
bf3925->client = client;
|
|
bf3925->xvclk = devm_clk_get(&client->dev, "xvclk");
|
|
if (IS_ERR(bf3925->xvclk)) {
|
|
dev_err(&client->dev, "Failed to get xvclk\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
bf3925_parse_of(bf3925);
|
|
|
|
bf3925->xvclk_frequency = clk_get_rate(bf3925->xvclk);
|
|
if (bf3925->xvclk_frequency < 6000000 ||
|
|
bf3925->xvclk_frequency > 27000000)
|
|
return -EINVAL;
|
|
|
|
v4l2_ctrl_handler_init(&bf3925->ctrls, 2);
|
|
bf3925->link_frequency =
|
|
v4l2_ctrl_new_std(&bf3925->ctrls, &bf3925_ctrl_ops,
|
|
V4L2_CID_PIXEL_RATE, 0,
|
|
BF3925_PIXEL_RATE, 1,
|
|
BF3925_PIXEL_RATE);
|
|
|
|
v4l2_ctrl_new_std_menu_items(&bf3925->ctrls, &bf3925_ctrl_ops,
|
|
V4L2_CID_TEST_PATTERN,
|
|
ARRAY_SIZE(bf3925_test_pattern_menu) - 1,
|
|
0, 0, bf3925_test_pattern_menu);
|
|
bf3925->sd.ctrl_handler = &bf3925->ctrls;
|
|
|
|
if (bf3925->ctrls.error) {
|
|
dev_err(&client->dev, "%s: control initialization error %d\n",
|
|
__func__, bf3925->ctrls.error);
|
|
return bf3925->ctrls.error;
|
|
}
|
|
|
|
sd = &bf3925->sd;
|
|
client->flags |= I2C_CLIENT_SCCB;
|
|
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
|
|
v4l2_i2c_subdev_init(sd, client, &bf3925_subdev_ops);
|
|
|
|
sd->internal_ops = &bf3925_subdev_internal_ops;
|
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
|
|
V4L2_SUBDEV_FL_HAS_EVENTS;
|
|
#endif
|
|
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
bf3925->pad.flags = MEDIA_PAD_FL_SOURCE;
|
|
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
|
|
ret = media_entity_pads_init(&sd->entity, 1, &bf3925->pad);
|
|
if (ret < 0) {
|
|
v4l2_ctrl_handler_free(&bf3925->ctrls);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
mutex_init(&bf3925->lock);
|
|
|
|
bf3925_get_default_format(&bf3925->format);
|
|
bf3925->frame_size = &bf3925_framesizes[0];
|
|
bf3925->format.width = bf3925_framesizes[0].width;
|
|
bf3925->format.height = bf3925_framesizes[0].height;
|
|
bf3925->fps = DIV_ROUND_CLOSEST(bf3925_framesizes[0].max_fps.denominator,
|
|
bf3925_framesizes[0].max_fps.numerator);
|
|
|
|
ret = bf3925_detect(bf3925);
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
memset(facing, 0, sizeof(facing));
|
|
if (strcmp(bf3925->module_facing, "back") == 0)
|
|
facing[0] = 'b';
|
|
else
|
|
facing[0] = 'f';
|
|
|
|
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
|
|
bf3925->module_index, facing,
|
|
DRIVER_NAME, dev_name(sd->dev));
|
|
ret = v4l2_async_register_subdev_sensor_common(&bf3925->sd);
|
|
if (ret)
|
|
goto error;
|
|
|
|
dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name);
|
|
|
|
return 0;
|
|
|
|
error:
|
|
v4l2_ctrl_handler_free(&bf3925->ctrls);
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
media_entity_cleanup(&sd->entity);
|
|
#endif
|
|
mutex_destroy(&bf3925->lock);
|
|
__bf3925_power_off(bf3925);
|
|
return ret;
|
|
}
|
|
|
|
static int bf3925_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
struct bf3925 *bf3925 = to_bf3925(sd);
|
|
|
|
v4l2_ctrl_handler_free(&bf3925->ctrls);
|
|
v4l2_async_unregister_subdev(sd);
|
|
#if defined(CONFIG_MEDIA_CONTROLLER)
|
|
media_entity_cleanup(&sd->entity);
|
|
#endif
|
|
mutex_destroy(&bf3925->lock);
|
|
|
|
__bf3925_power_off(bf3925);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id bf3925_id[] = {
|
|
{ "bf3925", 0 },
|
|
{ /* sentinel */ },
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, bf3925_id);
|
|
|
|
#if IS_ENABLED(CONFIG_OF)
|
|
static const struct of_device_id bf3925_of_match[] = {
|
|
{ .compatible = "byd,bf3925", },
|
|
{ /* sentinel */ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, bf3925_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver bf3925_i2c_driver = {
|
|
.driver = {
|
|
.name = DRIVER_NAME,
|
|
.of_match_table = of_match_ptr(bf3925_of_match),
|
|
},
|
|
.probe = bf3925_probe,
|
|
.remove = bf3925_remove,
|
|
.id_table = bf3925_id,
|
|
};
|
|
|
|
static int __init sensor_mod_init(void)
|
|
{
|
|
return i2c_add_driver(&bf3925_i2c_driver);
|
|
}
|
|
|
|
static void __exit sensor_mod_exit(void)
|
|
{
|
|
i2c_del_driver(&bf3925_i2c_driver);
|
|
}
|
|
|
|
device_initcall_sync(sensor_mod_init);
|
|
module_exit(sensor_mod_exit);
|
|
|
|
MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>");
|
|
MODULE_DESCRIPTION("BF3925 CMOS Image Sensor driver");
|
|
MODULE_LICENSE("GPL v2");
|