/*
* ov5650.c - ov5650 sensor driver
*
* Copyright (C) 2011 Google Inc.
*
* Contributors:
* Rebecca Schultz Zavin <rebecca@android.com>
*
* Leverage OV9640.c
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/i2c.h>
#include <linux/miscdevice.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <media/ov5650.h>
#include <media/tegra_camera.h>
#define SIZEOF_I2C_TRANSBUF 32
struct ov5650_reg {
u16 addr;
u16 val;
};
struct ov5650_sensor {
struct i2c_client *i2c_client;
struct ov5650_platform_data *pdata;
};
struct ov5650_info {
int mode;
enum StereoCameraMode camera_mode;
struct ov5650_sensor left;
struct ov5650_sensor right;
u8 i2c_trans_buf[SIZEOF_I2C_TRANSBUF];
};
static struct ov5650_info *stereo_ov5650_info;
#define OV5650_TABLE_WAIT_MS 0
#define OV5650_TABLE_END 1
#define OV5650_MAX_RETRIES 3
static struct ov5650_reg tp_none_seq[] = {
{0x5046, 0x00},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg tp_cbars_seq[] = {
{0x503D, 0xC0},
{0x503E, 0x00},
{0x5046, 0x01},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg tp_checker_seq[] = {
{0x503D, 0xC0},
{0x503E, 0x0A},
{0x5046, 0x01},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg *test_pattern_modes[] = {
tp_none_seq,
tp_cbars_seq,
tp_checker_seq,
};
static struct ov5650_reg reset_seq[] = {
{0x3008, 0x82},
{OV5650_TABLE_WAIT_MS, 5},
{0x3008, 0x42},
{OV5650_TABLE_WAIT_MS, 5},
{OV5650_TABLE_END, 0x0000},
};
static struct ov5650_reg mode_start[] = {
{0x3103, 0x93},
{0x3017, 0xff},
{0x3018, 0xfc},
{0x3600, 0x50},
{0x3601, 0x0d},
{0x3604, 0x50},
{0x3605, 0x04},
{0x3606, 0x3f},
{0x3612, 0x1a},
{0x3630, 0x22},
{0x3631, 0x22},
{0x3702, 0x3a},
{0x3704, 0x18},
{0x3705, 0xda},
{0x3706, 0x41},
{0x370a, 0x80},
{0x370b, 0x40},
{0x370e, 0x00},
{0x3710, 0x28},
{0x3712, 0x13},
{0x3830, 0x50},
{0x3a18, 0x00},
{0x3a19, 0xf8},
{0x3a00, 0x38},
{0x3603, 0xa7},
{0x3615, 0x50},
{0x3620, 0x56},
{0x3810, 0x00},
{0x3836, 0x00},
{0x3a1a, 0x06},
{0x4000, 0x01},
{0x401c, 0x48},
{0x401d, 0x08},
{0x5000, 0x00},
{0x5001, 0x00},
{0x5002, 0x00},
{0x503d, 0x00},
{0x5046, 0x00},
{0x300f, 0x8f},
{0x3010, 0x10},
{0x3011, 0x14},
{0x3012, 0x02},
{0x3815, 0x82},
{0x3503, 0x33},
{0x3613, 0x44},
{OV5650_TABLE_END, 0x0},
};
static struct ov5650_reg mode_2592x1944[] = {
{0x3621, 0x2f},
{0x3632, 0x55},
{0x3703, 0xe6},
{0x370c, 0xa0},
{0x370d, 0x04},
{0x3713, 0x2f},
{0x3800, 0x02},
{0x3801, 0x58},
{0x3802, 0x00},
{0x3803, 0x0c},
{0x3804, 0x0a},
{0x3805, 0x20},
{0x3806, 0x07},
{0x3807, 0xa0},
{0x3808, 0x0a},
{0x3809, 0x20},
{0x380a, 0x07},
{0x380b, 0xa0},
{0x380c, 0x0c},
{0x380d, 0xb4},
{0x380e, 0x07},
{0x380f, 0xb0},
{0x3818, 0xc0},
{0x381a, 0x3c},
{0x3a0d, 0x06},
{0x3c01, 0x00},
{0x3007, 0x3f},
{0x5059, 0x80},
{0x3003, 0x03},
{0x3500, 0x00},
{0x3501, 0x7a},
{0x3502, 0xd0},
{0x350a, 0x00},
{0x350b, 0x00},
{0x401d, 0x08},
{0x4801, 0x0f},
{0x300e, 0x0c},
{0x4803, 0x50},
{0x4800, 0x34},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_1296x972[] = {
{0x3621, 0xaf},
{0x3632, 0x5a},
{0x3703, 0xb0},
{0x370c, 0xc5},
{0x370d, 0x42},
{0x3713, 0x2f},
{0x3800, 0x03},
{0x3801, 0x3c},
{0x3802, 0x00},
{0x3803, 0x06},
{0x3804, 0x05},
{0x3805, 0x10},
{0x3806, 0x03},
{0x3807, 0xd0},
{0x3808, 0x05},
{0x3809, 0x10},
{0x380a, 0x03},
{0x380b, 0xd0},
{0x380c, 0x08},
{0x380d, 0xa8},
{0x380e, 0x05},
{0x380f, 0xa4},
{0x3818, 0xc1},
{0x381a, 0x00},
{0x3a0d, 0x08},
{0x3c01, 0x00},
{0x3007, 0x3b},
{0x5059, 0x80},
{0x3003, 0x03},
{0x3500, 0x00},
{0x3501, 0x5a},
{0x3502, 0x10},
{0x350a, 0x00},
{0x350b, 0x10},
{0x401d, 0x08},
{0x4801, 0x0f},
{0x300e, 0x0c},
{0x4803, 0x50},
{0x4800, 0x34},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_2080x1164[] = {
{0x3103, 0x93},
{0x3007, 0x3b},
{0x3017, 0xff},
{0x3018, 0xfc},
{0x3600, 0x54},
{0x3601, 0x05},
{0x3603, 0xa7},
{0x3604, 0x40},
{0x3605, 0x04},
{0x3606, 0x3f},
{0x3612, 0x1a},
{0x3613, 0x44},
{0x3615, 0x52},
{0x3620, 0x56},
{0x3623, 0x01},
{0x3630, 0x22},
{0x3631, 0x36},
{0x3632, 0x5f},
{0x3633, 0x24},
{0x3702, 0x3a},
{0x3704, 0x18},
{0x3706, 0x41},
{0x370b, 0x40},
{0x370e, 0x00},
{0x3710, 0x28},
{0x3711, 0x24},
{0x3712, 0x13},
{0x3810, 0x00},
{0x3815, 0x82},
{0x3830, 0x50},
{0x3836, 0x00},
{0x3a1a, 0x06},
{0x3a18, 0x00},
{0x3a19, 0xf8},
{0x3a00, 0x38},
{0x3a0d, 0x06},
{0x3c01, 0x34},
{0x401f, 0x03},
{0x4000, 0x05},
{0x401d, 0x08},
{0x4001, 0x02},
{0x5000, 0x00},
{0x5001, 0x00},
{0x5002, 0x00},
{0x503d, 0x00},
{0x5046, 0x00},
{0x300f, 0x8f},
{0x3010, 0x10},
{0x3011, 0x14},
{0x3012, 0x02},
{0x3503, 0x33},
{0x3621, 0x2f},
{0x3703, 0xe6},
{0x370c, 0x00},
{0x370d, 0x04},
{0x3713, 0x22},
{0x3714, 0x27},
{0x3705, 0xda},
{0x370a, 0x80},
{0x3800, 0x02},
{0x3801, 0x12},
{0x3802, 0x00},
{0x3803, 0x0a},
{0x3804, 0x08},
{0x3805, 0x20},
{0x3806, 0x04},
{0x3807, 0x92},
{0x3808, 0x08},
{0x3809, 0x20},
{0x380a, 0x04},
{0x380b, 0x92},
{0x380c, 0x0a},
{0x380d, 0x96},
{0x380e, 0x04},
{0x380f, 0x9e},
{0x3818, 0xc0},
{0x381a, 0x3c},
{0x381c, 0x31},
{0x381d, 0x8e},
{0x381e, 0x04},
{0x381f, 0x92},
{0x3820, 0x04},
{0x3821, 0x19},
{0x3824, 0x01},
{0x3827, 0x0a},
{0x401c, 0x46},
{0x3003, 0x03},
{0x3500, 0x00},
{0x3501, 0x49},
{0x3502, 0xa0},
{0x350a, 0x00},
{0x350b, 0x00},
{0x4801, 0x0f},
{0x300e, 0x0c},
{0x4803, 0x50},
{0x4800, 0x34},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_1920x1080[] = {
{0x3103, 0x93},
{0x3007, 0x3b},
{0x3017, 0xff},
{0x3018, 0xfc},
{0x3600, 0x54},
{0x3601, 0x05},
{0x3603, 0xa7},
{0x3604, 0x40},
{0x3605, 0x04},
{0x3606, 0x3f},
{0x3612, 0x1a},
{0x3613, 0x44},
{0x3615, 0x52},
{0x3620, 0x56},
{0x3623, 0x01},
{0x3630, 0x22},
{0x3631, 0x36},
{0x3632, 0x5f},
{0x3633, 0x24},
{0x3702, 0x3a},
{0x3704, 0x18},
{0x3706, 0x41},
{0x370b, 0x40},
{0x370e, 0x00},
{0x3710, 0x28},
{0x3711, 0x24},
{0x3712, 0x13},
{0x3810, 0x00},
{0x3815, 0x82},
{0x3830, 0x50},
{0x3836, 0x00},
{0x3a1a, 0x06},
{0x3a18, 0x00},
{0x3a19, 0xf8},
{0x3a00, 0x38},
{0x3a0d, 0x06},
{0x3c01, 0x34},
{0x401f, 0x03},
{0x4000, 0x05},
{0x401d, 0x08},
{0x4001, 0x02},
{0x5000, 0x00},
{0x5001, 0x00},
{0x5002, 0x00},
{0x503d, 0x00},
{0x5046, 0x00},
{0x300f, 0x8f},
{0x3010, 0x10},
{0x3011, 0x14},
{0x3012, 0x02},
{0x3503, 0x33},
{0x3621, 0x2f},
{0x3703, 0xe6},
{0x370c, 0x00},
{0x370d, 0x04},
{0x3713, 0x22},
{0x3714, 0x27},
{0x3705, 0xda},
{0x370a, 0x80},
{0x3800, 0x02},
{0x3801, 0x94},
{0x3802, 0x00},
{0x3803, 0x0c},
{0x3804, 0x07},
{0x3805, 0x80},
{0x3806, 0x04},
{0x3807, 0x40},
{0x3808, 0x07},
{0x3809, 0x80},
{0x380a, 0x04},
{0x380b, 0x40},
{0x380c, 0x0a},
{0x380d, 0x84},
{0x380e, 0x04},
{0x380f, 0xa4},
{0x3818, 0xc0},
{0x381a, 0x3c},
{0x381c, 0x31},
{0x381d, 0xa4},
{0x381e, 0x04},
{0x381f, 0x60},
{0x3820, 0x03},
{0x3821, 0x1a},
{0x3824, 0x01},
{0x3827, 0x0a},
{0x401c, 0x46},
{0x3003, 0x03},
{0x3500, 0x00},
{0x3501, 0x49},
{0x3502, 0xa0},
{0x350a, 0x00},
{0x350b, 0x00},
{0x4801, 0x0f},
{0x300e, 0x0c},
{0x4803, 0x50},
{0x4800, 0x34},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_1264x704[] = {
{0x3600, 0x54},
{0x3601, 0x05},
{0x3604, 0x40},
{0x3705, 0xdb},
{0x370a, 0x81},
{0x3615, 0x52},
{0x3810, 0x40},
{0x3836, 0x41},
{0x4000, 0x05},
{0x401c, 0x42},
{0x401d, 0x08},
{0x5046, 0x09},
{0x3010, 0x00},
{0x3503, 0x00},
{0x3613, 0xc4},
{0x3621, 0xaf},
{0x3632, 0x55},
{0x3703, 0x9a},
{0x370c, 0x00},
{0x370d, 0x42},
{0x3713, 0x22},
{0x3800, 0x02},
{0x3801, 0x54},
{0x3802, 0x00},
{0x3803, 0x0c},
{0x3804, 0x05},
{0x3805, 0x00},
{0x3806, 0x02},
{0x3807, 0xd0},
{0x3808, 0x05},
{0x3809, 0x00},
{0x380a, 0x02},
{0x380b, 0xd0},
{0x380c, 0x08},
{0x380d, 0x72},
{0x380e, 0x02},
{0x380f, 0xe4},
{0x3818, 0xc1},
{0x381a, 0x3c},
{0x3a0d, 0x06},
{0x3c01, 0x34},
{0x3007, 0x3b},
{0x5059, 0x80},
{0x3003, 0x03},
{0x3500, 0x04},
{0x3501, 0xa5},
{0x3502, 0x10},
{0x350a, 0x00},
{0x350b, 0x00},
{0x4801, 0x0f},
{0x300e, 0x0c},
{0x4803, 0x50},
{0x4800, 0x24},
{0x300f, 0x8b},
{0x3711, 0x24},
{0x3713, 0x92},
{0x3714, 0x17},
{0x381c, 0x10},
{0x381d, 0x82},
{0x381e, 0x05},
{0x381f, 0xc0},
{0x3821, 0x20},
{0x3824, 0x23},
{0x3825, 0x2c},
{0x3826, 0x00},
{0x3827, 0x0c},
{0x3623, 0x01},
{0x3633, 0x24},
{0x3632, 0x5f},
{0x401f, 0x03},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_320x240[] = {
{0x3103, 0x93},
{0x3b07, 0x0c},
{0x3017, 0xff},
{0x3018, 0xfc},
{0x3706, 0x41},
{0x3613, 0xc4},
{0x370d, 0x42},
{0x3703, 0x9a},
{0x3630, 0x22},
{0x3605, 0x04},
{0x3606, 0x3f},
{0x3712, 0x13},
{0x370e, 0x00},
{0x370b, 0x40},
{0x3600, 0x54},
{0x3601, 0x05},
{0x3713, 0x22},
{0x3714, 0x27},
{0x3631, 0x22},
{0x3612, 0x1a},
{0x3604, 0x40},
{0x3705, 0xdc},
{0x370a, 0x83},
{0x370c, 0xc8},
{0x3710, 0x28},
{0x3702, 0x3a},
{0x3704, 0x18},
{0x3a18, 0x00},
{0x3a19, 0xf8},
{0x3a00, 0x38},
{0x3800, 0x02},
{0x3801, 0x54},
{0x3803, 0x0c},
{0x380c, 0x0c},
{0x380d, 0xb4},
{0x380e, 0x07},
{0x380f, 0xb0},
{0x3830, 0x50},
{0x3a08, 0x12},
{0x3a09, 0x70},
{0x3a0a, 0x0f},
{0x3a0b, 0x60},
{0x3a0d, 0x06},
{0x3a0e, 0x06},
{0x3a13, 0x54},
{0x3815, 0x82},
{0x5059, 0x80},
{0x3615, 0x52},
{0x505a, 0x0a},
{0x505b, 0x2e},
{0x3713, 0x92},
{0x3714, 0x17},
{0x3803, 0x0a},
{0x3804, 0x05},
{0x3805, 0x00},
{0x3806, 0x01},
{0x3807, 0x00},
{0x3808, 0x01},
{0x3809, 0x40},
{0x380a, 0x01},
{0x380b, 0x00},
{0x380c, 0x0a},
{0x380d, 0x04},
{0x380e, 0x01},
{0x380f, 0x38},
{0x3815, 0x81},
{0x3824, 0x23},
{0x3825, 0x20},
{0x3826, 0x00},
{0x3827, 0x08},
{0x370d, 0xc2},
{0x3a08, 0x17},
{0x3a09, 0x64},
{0x3a0a, 0x13},
{0x3a0b, 0x80},
{0x3a00, 0x58},
{0x3a1a, 0x06},
{0x3503, 0x33},
{0x3623, 0x01},
{0x3633, 0x24},
{0x3c01, 0x34},
{0x3c04, 0x28},
{0x3c05, 0x98},
{0x3c07, 0x07},
{0x3c09, 0xc2},
{0x4000, 0x05},
{0x401d, 0x08},
{0x4001, 0x02},
{0x401c, 0x42},
{0x5046, 0x09},
{0x3810, 0x40},
{0x3836, 0x41},
{0x505f, 0x04},
{0x5000, 0x06},
{0x5001, 0x00},
{0x5002, 0x02},
{0x503d, 0x00},
{0x5901, 0x08},
{0x585a, 0x01},
{0x585b, 0x2c},
{0x585c, 0x01},
{0x585d, 0x93},
{0x585e, 0x01},
{0x585f, 0x90},
{0x5860, 0x01},
{0x5861, 0x0d},
{0x5180, 0xc0},
{0x5184, 0x00},
{0x470a, 0x00},
{0x470b, 0x00},
{0x470c, 0x00},
{0x300f, 0x8e},
{0x3603, 0xa7},
{0x3632, 0x55},
{0x3620, 0x56},
{0x3621, 0xaf},
{0x3818, 0xc3},
{0x3631, 0x36},
{0x3632, 0x5f},
{0x3711, 0x24},
{0x401f, 0x03},
{0x3011, 0x14},
{0x3007, 0x3B},
{0x300f, 0x8f},
{0x4801, 0x0f},
{0x3003, 0x03},
{0x300e, 0x0c},
{0x3010, 0x15},
{0x4803, 0x50},
{0x4800, 0x24},
{0x4837, 0x40},
{0x3815, 0x82},
{OV5650_TABLE_END, 0x0000}
};
static struct ov5650_reg mode_end[] = {
{0x3212, 0x00},
{0x3003, 0x01},
{0x3212, 0x10},
{0x3212, 0xa0},
{0x3008, 0x02},
{OV5650_TABLE_END, 0x0000}
};
enum {
OV5650_MODE_2592x1944,
OV5650_MODE_1296x972,
OV5650_MODE_2080x1164,
OV5650_MODE_1920x1080,
OV5650_MODE_1264x704,
OV5650_MODE_320x240,
OV5650_MODE_INVALID
};
static struct ov5650_reg *mode_table[] = {
[OV5650_MODE_2592x1944] = mode_2592x1944,
[OV5650_MODE_1296x972] = mode_1296x972,
[OV5650_MODE_2080x1164] = mode_2080x1164,
[OV5650_MODE_1920x1080] = mode_1920x1080,
[OV5650_MODE_1264x704] = mode_1264x704,
[OV5650_MODE_320x240] = mode_320x240
};
static inline void ov5650_get_frame_length_regs(struct ov5650_reg *regs,
u32 frame_length)
{
regs->addr = 0x380e;
regs->val = (frame_length >> 8) & 0xff;
(regs + 1)->addr = 0x380f;
(regs + 1)->val = (frame_length) & 0xff;
}
static inline void ov5650_get_coarse_time_regs(struct ov5650_reg *regs,
u32 coarse_time)
{
regs->addr = 0x3500;
regs->val = (coarse_time >> 12) & 0xff;
(regs + 1)->addr = 0x3501;
(regs + 1)->val = (coarse_time >> 4) & 0xff;
(regs + 2)->addr = 0x3502;
(regs + 2)->val = (coarse_time & 0xf) << 4;
}
static inline void ov5650_get_gain_reg(struct ov5650_reg *regs, u16 gain)
{
regs->addr = 0x350b;
regs->val = gain;
}
static int ov5650_read_reg(struct i2c_client *client, u16 addr, u8 *val)
{
int err;
struct i2c_msg msg[2];
unsigned char data[3];
if (!client->adapter)
return -ENODEV;
msg[0].addr = client->addr;
msg[0].flags = 0;
msg[0].len = 2;
msg[0].buf = data;
/* high byte goes out first */
data[0] = (u8) (addr >> 8);
data[1] = (u8) (addr & 0xff);
msg[1].addr = client->addr;
msg[1].flags = I2C_M_RD;
msg[1].len = 1;
msg[1].buf = data + 2;
err = i2c_transfer(client->adapter, msg, 2);
if (err != 1)
return -EINVAL;
*val = data[2];
return 0;
}
static int ov5650_read_reg_helper(struct ov5650_info *info,
u16 addr, u8 *val)
{
int ret;
switch (info->camera_mode) {
case Main:
case StereoCameraMode_Left:
ret = ov5650_read_reg(info->left.i2c_client, addr, val);
break;
case StereoCameraMode_Stereo:
ret = ov5650_read_reg(info->left.i2c_client, addr, val);
if (ret)
break;
ret = ov5650_read_reg(info->right.i2c_client, addr, val);
break;
case StereoCameraMode_Right:
ret = ov5650_read_reg(info->right.i2c_client, addr, val);
break;
default:
return -1;
}
return ret;
}
static int ov5650_write_reg(struct i2c_client *client, u16 addr, u8 val)
{
int err;
struct i2c_msg msg;
unsigned char data[3];
if (!client->adapter)
return -ENODEV;
data[0] = (u8) (addr >> 8);
data[1] = (u8) (addr & 0xff);
data[2] = (u8) (val & 0xff);
msg.addr = client->addr;
msg.flags = 0;
msg.len = 3;
msg.buf = data;
err = i2c_transfer(client->adapter, &msg, 1);
if (err == 1)
return 0;
pr_err("ov5650: i2c transfer failed, retrying %x %x\n", addr, val);
return err;
}
static int ov5650_write_reg_helper(struct ov5650_info *info,
u16 addr, u8 val)
{
int ret;
switch (info->camera_mode) {
case Main:
case StereoCameraMode_Left:
ret = ov5650_write_reg(info->left.i2c_client, addr, val);
break;
case StereoCameraMode_Stereo:
ret = ov5650_write_reg(info->left.i2c_client, addr, val);
if (ret)
break;
ret = ov5650_write_reg(info->right.i2c_client, addr, val);
break;
case StereoCameraMode_Right:
ret = ov5650_write_reg(info->right.i2c_client, addr, val);
break;
default:
return -1;
}
return ret;
}
static int ov5650_write_bulk_reg(struct i2c_client *client, u8 *data, int len)
{
int err;
struct i2c_msg msg;
if (!client->adapter)
return -ENODEV;
msg.addr = client->addr;
msg.flags = 0;
msg.len = len;
msg.buf = data;
err = i2c_transfer(client->adapter, &msg, 1);
if (err == 1)
return 0;
pr_err("ov5650: i2c bulk transfer failed at %x\n",
(int)data[0] << 8 | data[1]);
return err;
}
static int ov5650_write_bulk_reg_helper(struct ov5650_info *info, int len)
{
int ret;
switch (info->camera_mode) {
case Main:
case StereoCameraMode_Left:
ret = ov5650_write_bulk_reg(info->left.i2c_client,
info->i2c_trans_buf, len);
break;
case StereoCameraMode_Stereo:
ret = ov5650_write_bulk_reg(info->left.i2c_client,
info->i2c_trans_buf, len);
if (ret)
break;
ret = ov5650_write_bulk_reg(info->right.i2c_client,
info->i2c_trans_buf, len);
break;
case StereoCameraMode_Right:
ret = ov5650_write_bulk_reg(info->right.i2c_client,
info->i2c_trans_buf, len);
break;
default:
return -1;
}
return ret;
}
static int ov5650_write_table(struct ov5650_info *info,
const struct ov5650_reg table[],
const struct ov5650_reg override_list[],
int num_override_regs)
{
int err;
const struct ov5650_reg *next, *n_next;
u8 *b_ptr = info->i2c_trans_buf;
unsigned int buf_filled = 0;
unsigned int i;
u16 val;
for (next = table; next->addr != OV5650_TABLE_END; next++) {
if (next->addr == OV5650_TABLE_WAIT_MS) {
msleep(next->val);
continue;
}
val = next->val;
/* When an override list is passed in, replace the reg */
/* value to write if the reg is in the list */
if (override_list) {
for (i = 0; i < num_override_regs; i++) {
if (next->addr == override_list[i].addr) {
val = override_list[i].val;
break;
}
}
}
if (!buf_filled) {
b_ptr = info->i2c_trans_buf;
*b_ptr++ = next->addr >> 8;
*b_ptr++ = next->addr & 0xff;
buf_filled = 2;
}
*b_ptr++ = val;
buf_filled++;
n_next = next + 1;
if (n_next->addr != OV5650_TABLE_END &&
n_next->addr != OV5650_TABLE_WAIT_MS &&
buf_filled < SIZEOF_I2C_TRANSBUF &&
n_next->addr == next->addr + 1) {
continue;
}
err = ov5650_write_bulk_reg_helper(info, buf_filled);
if (err)
return err;
buf_filled = 0;
}
return 0;
}
static int ov5650_set_mode(struct ov5650_info *info, struct ov5650_mode *mode)
{
int sensor_mode;
int err;
struct ov5650_reg reg_list[6];
pr_info("%s: xres %u yres %u framelength %u coarsetime %u gain %u\n",
__func__, mode->xres, mode->yres, mode->frame_length,
mode->coarse_time, mode->gain);
if (mode->xres == 2592 && mode->yres == 1944)
sensor_mode = OV5650_MODE_2592x1944;
else if (mode->xres == 1296 && mode->yres == 972)
sensor_mode = OV5650_MODE_1296x972;
else if (mode->xres == 2080 && mode->yres == 1164)
sensor_mode = OV5650_MODE_2080x1164;
else if (mode->xres == 1920 && mode->yres == 1080)
sensor_mode = OV5650_MODE_1920x1080;
else if (mode->xres == 1264 && mode->yres == 704)
sensor_mode = OV5650_MODE_1264x704;
else if (mode->xres == 320 && mode->yres == 240)
sensor_mode = OV5650_MODE_320x240;
else {
pr_err("%s: invalid resolution supplied to set mode %d %d\n",
__func__, mode->xres, mode->yres);
return -EINVAL;
}
/* get a list of override regs for the asking frame length, */
/* coarse integration time, and gain. */
ov5650_get_frame_length_regs(reg_list, mode->frame_length);
ov5650_get_coarse_time_regs(reg_list + 2, mode->coarse_time);
ov5650_get_gain_reg(reg_list + 5, mode->gain);
err = ov5650_write_table(info, reset_seq, NULL, 0);
if (err)
return err;
err = ov5650_write_table(info, mode_start, NULL, 0);
if (err)
return err;
err = ov5650_write_table(info, mode_table[sensor_mode],
reg_list, 6);
if (err)
return err;
err = ov5650_write_table(info, mode_end, NULL, 0);
if (err)
return err;
info->mode = sensor_mode;
return 0;
}
static int ov5650_set_frame_length(struct ov5650_info *info, u32 frame_length)
{
int ret;
struct ov5650_reg reg_list[2];
u8 *b_ptr = info->i2c_trans_buf;
ov5650_get_frame_length_regs(reg_list, frame_length);
*b_ptr++ = reg_list[0].addr >> 8;
*b_ptr++ = reg_list[0].addr & 0xff;
*b_ptr++ = reg_list[0].val & 0xff;
*b_ptr++ = reg_list[1].val & 0xff;
ret = ov5650_write_bulk_reg_helper(info, 4);
return ret;
}
static int ov5650_set_coarse_time(struct ov5650_info *info, u32 coarse_time)
{
int ret;
struct ov5650_reg reg_list[3];
u8 *b_ptr = info->i2c_trans_buf;
ov5650_get_coarse_time_regs(reg_list, coarse_time);
*b_ptr++ = reg_list[0].addr >> 8;
*b_ptr++ = reg_list[0].addr & 0xff;
*b_ptr++ = reg_list[0].val & 0xff;
*b_ptr++ = reg_list[1].val & 0xff;
*b_ptr++ = reg_list[2].val & 0xff;
ret = ov5650_write_bulk_reg_helper(info, 5);
return ret;
}
static int ov5650_set_gain(struct ov5650_info *info, u16 gain)
{
int ret;
struct ov5650_reg reg_list;
ov5650_get_gain_reg(®_list, gain);
ret = ov5650_write_reg_helper(info, reg_list.addr, reg_list.val);
return ret;
}
static int ov5650_set_group_hold(struct ov5650_info *info, struct ov5650_ae *ae)
{
int ret;
int count = 0;
bool groupHoldEnabled = false;
if (ae->gain_enable)
count++;
if (ae->coarse_time_enable)
count++;
if (ae->frame_length_enable)
count++;
if (count >= 2)
groupHoldEnabled = true;
if (groupHoldEnabled) {
ret = ov5650_write_reg_helper(info, 0x3212, 0x01);
if (ret)
return ret;
}
if (ae->gain_enable)
ov5650_set_gain(info, ae->gain);
if (ae->coarse_time_enable)
ov5650_set_coarse_time(info, ae->coarse_time);
if (ae->frame_length_enable)
ov5650_set_frame_length(info, ae->frame_length);
if (groupHoldEnabled) {
ret = ov5650_write_reg_helper(info, 0x3212, 0x11);
if (ret)
return ret;
ret = ov5650_write_reg_helper(info, 0x3212, 0xa1);
if (ret)
return ret;
}
return 0;
}
static int ov5650_set_binning(struct ov5650_info *info, u8 enable)
{
s32 ret;
u8 array_ctrl_reg, analog_ctrl_reg, timing_reg;
u32 val;
if (info->mode == OV5650_MODE_2592x1944
|| info->mode == OV5650_MODE_2080x1164
|| info->mode >= OV5650_MODE_INVALID) {
return -EINVAL;
}
ov5650_read_reg_helper(info, OV5650_ARRAY_CONTROL_01, &array_ctrl_reg);
ov5650_read_reg_helper(info, OV5650_ANALOG_CONTROL_D, &analog_ctrl_reg);
ov5650_read_reg_helper(info, OV5650_TIMING_TC_REG_18, &timing_reg);
ret = ov5650_write_reg_helper(info,
OV5650_SRM_GRUP_ACCESS,
OV5650_GROUP_ID(3));
if (ret < 0)
return -EIO;
if (!enable) {
ret = ov5650_write_reg_helper(info,
OV5650_ARRAY_CONTROL_01,
array_ctrl_reg |
(OV5650_H_BINNING_BIT | OV5650_H_SUBSAMPLING_BIT));
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_ANALOG_CONTROL_D,
analog_ctrl_reg & ~OV5650_V_BINNING_BIT);
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_TC_REG_18,
timing_reg | OV5650_V_SUBSAMPLING_BIT);
if (ret < 0)
goto exit;
if (info->mode == OV5650_MODE_1296x972)
val = 0x1A2;
else
/* FIXME: this value is not verified yet. */
val = 0x1A8;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_CONTROL_HS_HIGH,
(val >> 8));
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_CONTROL_HS_LOW,
(val & 0xFF));
} else {
ret = ov5650_write_reg_helper(info,
OV5650_ARRAY_CONTROL_01,
(array_ctrl_reg | OV5650_H_BINNING_BIT)
& ~OV5650_H_SUBSAMPLING_BIT);
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_ANALOG_CONTROL_D,
analog_ctrl_reg | OV5650_V_BINNING_BIT);
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_TC_REG_18,
timing_reg | OV5650_V_SUBSAMPLING_BIT);
if (ret < 0)
goto exit;
if (info->mode == OV5650_MODE_1296x972)
val = 0x33C;
else
val = 0x254;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_CONTROL_HS_HIGH,
(val >> 8));
if (ret < 0)
goto exit;
ret = ov5650_write_reg_helper(info,
OV5650_TIMING_CONTROL_HS_LOW,
(val & 0xFF));
}
exit:
ret = ov5650_write_reg_helper(info,
OV5650_SRM_GRUP_ACCESS,
(OV5650_GROUP_HOLD_END_BIT | OV5650_GROUP_ID(3)));
ret |= ov5650_write_reg_helper(info,
OV5650_SRM_GRUP_ACCESS,
(OV5650_GROUP_HOLD_BIT | OV5650_GROUP_LAUNCH_BIT |
OV5650_GROUP_ID(3)));
return ret;
}
static int ov5650_test_pattern(struct ov5650_info *info,
enum ov5650_test_pattern pattern)
{
if (pattern >= ARRAY_SIZE(test_pattern_modes))
return -EINVAL;
return ov5650_write_table(info,
test_pattern_modes[pattern],
NULL, 0);
}
static int set_power_helper(struct ov5650_platform_data *pdata,
int powerLevel)
{
if (pdata) {
if (powerLevel && pdata->power_on)
pdata->power_on();
else if (pdata->power_off)
pdata->power_off();
}
return 0;
}
static int ov5650_set_power(int powerLevel)
{
pr_info("%s: powerLevel=%d camera mode=%d\n", __func__, powerLevel,
stereo_ov5650_info->camera_mode);
if (StereoCameraMode_Left & stereo_ov5650_info->camera_mode)
set_power_helper(stereo_ov5650_info->left.pdata, powerLevel);
if (StereoCameraMode_Right & stereo_ov5650_info->camera_mode)
set_power_helper(stereo_ov5650_info->right.pdata, powerLevel);
return 0;
}
static long ov5650_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int err;
struct ov5650_info *info = file->private_data;
switch (cmd) {
case OV5650_IOCTL_SET_CAMERA_MODE:
{
if (info->camera_mode != arg) {
err = ov5650_set_power(0);
if (err) {
pr_info("%s %d\n", __func__, __LINE__);
return err;
}
info->camera_mode = arg;
err = ov5650_set_power(1);
if (err)
return err;
}
return 0;
}
case OV5650_IOCTL_SYNC_SENSORS:
if (info->right.pdata->synchronize_sensors)
info->right.pdata->synchronize_sensors();
return 0;
case OV5650_IOCTL_SET_MODE:
{
struct ov5650_mode mode;
if (copy_from_user(&mode,
(const void __user *)arg,
sizeof(struct ov5650_mode))) {
pr_info("%s %d\n", __func__, __LINE__);
return -EFAULT;
}
return ov5650_set_mode(info, &mode);
}
case OV5650_IOCTL_SET_FRAME_LENGTH:
return ov5650_set_frame_length(info, (u32)arg);
case OV5650_IOCTL_SET_COARSE_TIME:
return ov5650_set_coarse_time(info, (u32)arg);
case OV5650_IOCTL_SET_GAIN:
return ov5650_set_gain(info, (u16)arg);
case OV5650_IOCTL_SET_BINNING:
return ov5650_set_binning(info, (u8)arg);
case OV5650_IOCTL_GET_STATUS:
{
u16 status = 0;
if (copy_to_user((void __user *)arg, &status,
2)) {
pr_info("%s %d\n", __func__, __LINE__);
return -EFAULT;
}
return 0;
}
case OV5650_IOCTL_TEST_PATTERN:
{
err = ov5650_test_pattern(info, (enum ov5650_test_pattern) arg);
if (err)
pr_err("%s %d %d\n", __func__, __LINE__, err);
return err;
}
case OV5650_IOCTL_SET_GROUP_HOLD:
{
struct ov5650_ae ae;
if (copy_from_user(&ae,
(const void __user *)arg,
sizeof(struct ov5650_ae))) {
pr_info("%s %d\n", __func__, __LINE__);
return -EFAULT;
}
return ov5650_set_group_hold(info, &ae);
}
default:
return -EINVAL;
}
return 0;
}
static int ov5650_open(struct inode *inode, struct file *file)
{
pr_info("%s\n", __func__);
file->private_data = stereo_ov5650_info;
ov5650_set_power(1);
return 0;
}
int ov5650_release(struct inode *inode, struct file *file)
{
ov5650_set_power(0);
file->private_data = NULL;
return 0;
}
static const struct file_operations ov5650_fileops = {
.owner = THIS_MODULE,
.open = ov5650_open,
.unlocked_ioctl = ov5650_ioctl,
.release = ov5650_release,
};
static struct miscdevice ov5650_device = {
.minor = MISC_DYNAMIC_MINOR,
.name = "ov5650",
.fops = &ov5650_fileops,
};
static int ov5650_probe_common(void)
{
int err;
if (!stereo_ov5650_info) {
stereo_ov5650_info = kzalloc(sizeof(struct ov5650_info),
GFP_KERNEL);
if (!stereo_ov5650_info) {
pr_err("ov5650: Unable to allocate memory!\n");
return -ENOMEM;
}
err = misc_register(&ov5650_device);
if (err) {
pr_err("ov5650: Unable to register misc device!\n");
kfree(stereo_ov5650_info);
return err;
}
}
return 0;
}
static int ov5650_remove_common(struct i2c_client *client)
{
if (stereo_ov5650_info->left.i2c_client ||
stereo_ov5650_info->right.i2c_client)
return 0;
misc_deregister(&ov5650_device);
kfree(stereo_ov5650_info);
stereo_ov5650_info = NULL;
return 0;
}
static int left_ov5650_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int err;
pr_info("%s: probing sensor.\n", __func__);
err = ov5650_probe_common();
if (err)
return err;
stereo_ov5650_info->left.pdata = client->dev.platform_data;
stereo_ov5650_info->left.i2c_client = client;
return 0;
}
static int left_ov5650_remove(struct i2c_client *client)
{
if (stereo_ov5650_info) {
stereo_ov5650_info->left.i2c_client = NULL;
ov5650_remove_common(client);
}
return 0;
}
static const struct i2c_device_id left_ov5650_id[] = {
{ "ov5650", 0 },
{ "ov5650L", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, left_ov5650_id);
static struct i2c_driver left_ov5650_i2c_driver = {
.driver = {
.name = "ov5650",
.owner = THIS_MODULE,
},
.probe = left_ov5650_probe,
.remove = left_ov5650_remove,
.id_table = left_ov5650_id,
};
static int right_ov5650_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int err;
pr_info("%s: probing sensor.\n", __func__);
err = ov5650_probe_common();
if (err)
return err;
stereo_ov5650_info->right.pdata = client->dev.platform_data;
stereo_ov5650_info->right.i2c_client = client;
return 0;
}
static int right_ov5650_remove(struct i2c_client *client)
{
if (stereo_ov5650_info) {
stereo_ov5650_info->right.i2c_client = NULL;
ov5650_remove_common(client);
}
return 0;
}
static const struct i2c_device_id right_ov5650_id[] = {
{ "ov5650R", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, right_ov5650_id);
static struct i2c_driver right_ov5650_i2c_driver = {
.driver = {
.name = "ov5650R",
.owner = THIS_MODULE,
},
.probe = right_ov5650_probe,
.remove = right_ov5650_remove,
.id_table = right_ov5650_id,
};
static int __init ov5650_init(void)
{
int ret;
pr_info("ov5650 sensor driver loading\n");
ret = i2c_add_driver(&left_ov5650_i2c_driver);
if (ret)
return ret;
return i2c_add_driver(&right_ov5650_i2c_driver);
}
static void __exit ov5650_exit(void)
{
i2c_del_driver(&right_ov5650_i2c_driver);
i2c_del_driver(&left_ov5650_i2c_driver);
}
module_init(ov5650_init);
module_exit(ov5650_exit);
