/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#include
#include
#include
#include
#include
#include
#define to_ov5640(sd) container_of(sd, struct ov5640_priv, subdev)
#define OV5640_SYSTEM_CTRL 0x3008
#define OV5640_CHIP_ID_HI 0x300a
#define OV5640_CHIP_ID_LO 0x300b
#define OV5640_PAD_OUTPUT_ENABLE00 0x3016
#define OV5640_PAD_OUTPUT_ENABLE01 0x3017
#define OV5640_PAD_OUTPUT_ENABLE02 0x3018
#define OV5640_SC_PLL_CTRL0 0x3034
#define OV5640_SC_PLL_CTRL1 0x3035
#define OV5640_SC_PLL_CTRL2 0x3036
#define OV5640_SC_PLL_CTRL3 0x3037
/* SCCB Control */
#define OV5640_SCCB_SYSTEM_CTRL1 0x3103
#define OV5640_SYSTEM_ROOT_DIVIDER 0x3108
/* Timing Control */
#define OV5640_TIMING_HS_HI 0x3800
#define OV5640_TIMING_HS_LO 0x3801
#define OV5640_TIMING_VS_HI 0x3802
#define OV5640_TIMING_VS_LO 0x3803
#define OV5640_TIMING_HW_HI 0x3804
#define OV5640_TIMING_HW_LO 0x3805
#define OV5640_TIMING_VH_HI 0x3806
#define OV5640_TIMING_VH_LO 0x3807
#define OV5640_TIMING_DVPHO_HI 0x3808
#define OV5640_TIMING_DVPHO_LO 0x3809
#define OV5640_TIMING_DVPVO_HI 0x380a
#define OV5640_TIMING_DVPVO_LO 0x380b
#define OV5640_TIMING_HTS_HI 0x380c
#define OV5640_TIMING_HTS_LO 0x380d
#define OV5640_TIMING_VTS_HI 0x380e
#define OV5640_TIMING_VTS_LO 0x380f
#define OV5640_TIMING_HOFFSET_HI 0x3810
#define OV5640_TIMING_HOFFSET_LO 0x3811
#define OV5640_TIMING_VOFFSET_HI 0x3812
#define OV5640_TIMING_VOFFSET_LO 0x3813
#define OV5640_TIMING_X_INC 0x3814
#define OV5640_TIMING_Y_INC 0x3815
#define OV5640_TIMING_TC_REG20 0x3820
#define OV5640_TIMING_TC_REG21 0x3821
/* AEC/AGC Power Down Domain Control */
#define OV5640_AEC_MAX_EXPO_60HZ_HI 0x3a02
#define OV5640_AEC_MAX_EXPO_60HZ_LO 0x3a03
#define OV5640_AEC_B50_STEP_HI 0x3a08
#define OV5640_AEC_B50_STEP_LO 0x3a09
#define OV5640_AEC_B60_STEP_HI 0x3a0a
#define OV5640_AEC_B60_STEP_LO 0x3a0b
#define OV5640_AEC_CTRL0C 0x3a0c
#define OV5640_AEC_CTRL0D 0x3a0d
#define OV5640_AEC_CTRL0E 0x3a0e
#define OV5640_AEC_CTRL0F 0x3a0f
#define OV5640_AEC_CTRL10 0x3a10
#define OV5640_AEC_CTRL11 0x3a11
#define OV5640_AEC_CTRL12 0x3a12
#define OV5640_AEC_CTRL13 0x3a13
#define OV5640_AEC_MAX_EXPO_50HZ_HI 0x3a14
#define OV5640_AEC_MAX_EXPO_50HZ_LO 0x3a15
#define OV5640_AEC_GAIN_CEILING_HI 0x3a18
#define OV5640_AEC_GAIN_CEILING_LO 0x3a19
#define OV5640_AEC_CTRL1B 0x3a1b
#define OV5640_AEC_CTRL1E 0x3a1e
#define OV5640_AEC_CTRL1F 0x3a1f
/* 50/60Hz Detector Control */
#define OV5640_5060HZ_CTRL00 0x3c00
#define OV5640_5060HZ_CTRL01 0x3c01
#define OV5640_5060HZ_CTRL02 0x3c02
#define OV5640_5060HZ_CTRL03 0x3c03
#define OV5640_5060HZ_CTRL04 0x3c04
#define OV5640_5060HZ_CTRL05 0x3c05
#define OV5640_LIGHT_METER1_THRESHOLD_HI 0x3c06
#define OV5640_LIGHT_METER1_THRESHOLD_LO 0x3c07
#define OV5640_LIGHT_METER2_THRESHOLD_HI 0x3c08
#define OV5640_LIGHT_METER2_THRESHOLD_LO 0x3c09
#define OV5640_SAMPLE_NUMBER_HI 0x3c0a
#define OV5640_SAMPLE_NUMBER_LO 0x3c0b
/* ISP General Controls */
#define OV5640_ISP_CTRL00 0x5000
#define OV5640_ISP_CTRL01 0x5001
#define OV5640_ISP_CTRL37 0x5025
/* AWB Control */
#define OV5640_AWB_CTRL00 0x5180
#define OV5640_AWB_CTRL01 0x5181
#define OV5640_AWB_CTRL02 0x5182
#define OV5640_AWB_CTRL03 0x5183
#define OV5640_AWB_CTRL04 0x5184
#define OV5640_AWB_CTRL05 0x5185
#define OV5640_AWB_CTRL06 0x5186
#define OV5640_AWB_CTRL07 0x5187
#define OV5640_AWB_CTRL08 0x5188
#define OV5640_AWB_CTRL09 0x5189
#define OV5640_AWB_CTRL10 0x518a
#define OV5640_AWB_CTRL11 0x518b
#define OV5640_AWB_CTRL12 0x518c
#define OV5640_AWB_CTRL13 0x518d
#define OV5640_AWB_CTRL14 0x518e
#define OV5640_AWB_CTRL15 0x518f
#define OV5640_AWB_CTRL16 0x5190
#define OV5640_AWB_CTRL17 0x5191
#define OV5640_AWB_CTRL18 0x5192
#define OV5640_AWB_CTRL19 0x5193
#define OV5640_AWB_CTRL20 0x5194
#define OV5640_AWB_CTRL21 0x5195
#define OV5640_AWB_CTRL22 0x5196
#define OV5640_AWB_CTRL23 0x5197
#define OV5640_AWB_CTRL24 0x5198
#define OV5640_AWB_CTRL25 0x5199
#define OV5640_AWB_CTRL26 0x519a
#define OV5640_AWB_CTRL27 0x519b
#define OV5640_AWB_CTRL28 0x519c
#define OV5640_AWB_CTRL29 0x519d
#define OV5640_AWB_CTRL30 0x519e
/* CIP Control */
#define OV5640_CIP_SHARPENMT_THRESHOLD_1 0x5300
#define OV5640_CIP_SHARPENMT_THRESHOLD_2 0x5301
#define OV5640_CIP_SHARPENMT_OFFSET_1 0x5302
#define OV5640_CIP_SHARPENMT_OFFSET_2 0x5303
#define OV5640_CIP_DNS_THRESHOLD_1 0x5304
#define OV5640_CIP_DNS_THRESHOLD_2 0x5305
#define OV5640_CIP_DNS_OFFSET_1 0x5306
#define OV5640_CIP_DNS_OFFSET_2 0x5307
#define OV5640_CIP_CTRL 0x5308
#define OV5640_CIP_SHARPENTH_THRESHOLD_1 0x5309
#define OV5640_CIP_SHARPENTH_THRESHOLD_2 0x530a
#define OV5640_CIP_SHARPENTH_OFFSET_1 0x530b
#define OV5640_CIP_SHARPENTH_OFFSET_2 0x530c
#define OV5640_CIP_EDGE_MT_AUTO 0x530d
#define OV5640_CIP_DNS_THRESHOLD_AUTO 0x530e
#define OF5640_CIP_SHARPEN_THRESHOLD_AUTO 0x530f
/* CMX Control */
#define OV5640_CMX_CTRL 0x5380
#define OV5640_CMX1 0x5381
#define OV5640_CMX2 0x5382
#define OV5640_CMX3 0x5383
#define OV5640_CMX4 0x5384
#define OV5640_CMX5 0x5385
#define OV5640_CMX6 0x5386
#define OV5640_CMX7 0x5387
#define OV5640_CMX8 0x5388
#define OV5640_CMX9 0x5389
#define OV5640_CMXSIGN_HI 0x538a
#define OV5640_CMXSIGN_LO 0x538b
/* Gamma Control */
#define OV5640_GAMMA_CTRL00 0x5480
#define OV5640_YST00 0x5481
#define OV5640_YST01 0x5482
#define OV5640_YST02 0x5483
#define OV5640_YST03 0x5484
#define OV5640_YST04 0x5485
#define OV5640_YST05 0x5486
#define OV5640_YST06 0x5487
#define OV5640_YST07 0x5488
#define OV5640_YST08 0x5489
#define OV5640_YST09 0x548a
#define OV5640_YST0A 0x548b
#define OV5640_YST0B 0x548c
#define OV5640_YST0C 0x548d
#define OV5640_YST0D 0x548e
#define OV5640_YST0E 0x548f
#define OV5640_YST0F 0x5490
/* SDE Control */
#define OV5640_SDE_CTRL_0 0x5580
#define OV5640_SDE_CTRL_1 0x5581
#define OV5640_SDE_CTRL_2 0x5582
#define OV5640_SDE_CTRL_3 0x5583
#define OV5640_SDE_CTRL_4 0x5584
#define OV5640_SDE_CTRL_5 0x5585
#define OV5640_SDE_CTRL_6 0x5586
#define OV5640_SDE_CTRL_7 0x5587
#define OV5640_SDE_CTRL_8 0x5588
#define OV5640_SDE_CTRL_9 0x5589
#define OV5640_SDE_CTRL_10 0x558a
#define OV5640_SDE_CTRL_11 0x558b
#define OV5640_SDE_CTRL_12 0x558c
/* LENC Control */
#define OV5640_GMTRX00 0x5800
#define OV5640_GMTRX01 0x5801
#define OV5640_GMTRX02 0x5802
#define OV5640_GMTRX03 0x5803
#define OV5640_GMTRX04 0x5804
#define OV5640_GMTRX05 0x5805
#define OV5640_GMTRX10 0x5806
#define OV5640_GMTRX11 0x5807
#define OV5640_GMTRX12 0x5808
#define OV5640_GMTRX13 0x5809
#define OV5640_GMTRX14 0x580a
#define OV5640_GMTRX15 0x580b
#define OV5640_GMTRX20 0x580c
#define OV5640_GMTRX21 0x580d
#define OV5640_GMTRX22 0x580e
#define OV5640_GMTRX23 0x580f
#define OV5640_GMTRX24 0x5810
#define OV5640_GMTRX25 0x5811
#define OV5640_GMTRX30 0x5812
#define OV5640_GMTRX31 0x5813
#define OV5640_GMTRX32 0x5814
#define OV5640_GMTRX33 0x5815
#define OV5640_GMTRX34 0x5816
#define OV5640_GMTRX35 0x5817
#define OV5640_GMTRX40 0x5818
#define OV5640_GMTRX41 0x5819
#define OV5640_GMTRX42 0x581a
#define OV5640_GMTRX43 0x581b
#define OV5640_GMTRX44 0x581c
#define OV5640_GMTRX45 0x581d
#define OV5640_GMTRX50 0x581e
#define OV5640_GMTRX51 0x581f
#define OV5640_GMTRX52 0x5820
#define OV5640_GMTRX53 0x5821
#define OV5640_GMTRX54 0x5822
#define OV5640_GMTRX55 0x5823
#define OV5640_BRMATRX00 0x5824
#define OV5640_BRMATRX01 0x5825
#define OV5640_BRMATRX02 0x5826
#define OV5640_BRMATRX03 0x5827
#define OV5640_BRMATRX04 0x5828
#define OV5640_BRMATRX05 0x5829
#define OV5640_BRMATRX06 0x582a
#define OV5640_BRMATRX07 0x582b
#define OV5640_BRMATRX08 0x582c
#define OV5640_BRMATRX09 0x582d
#define OV5640_BRMATRX20 0x582e
#define OV5640_BRMATRX21 0x582f
#define OV5640_BRMATRX22 0x5830
#define OV5640_BRMATRX23 0x5831
#define OV5640_BRMATRX24 0x5832
#define OV5640_BRMATRX30 0x5833
#define OV5640_BRMATRX31 0x5834
#define OV5640_BRMATRX32 0x5835
#define OV5640_BRMATRX33 0x5836
#define OV5640_BRMATRX34 0x5837
#define OV5640_BRMATRX40 0x5838
#define OV5640_BRMATRX41 0x5839
#define OV5640_BRMATRX42 0x583a
#define OV5640_BRMATRX43 0x583b
#define OV5640_BRMATRX44 0x583c
#define OV5640_LENC_BR_OFFSET 0x583d
#define OV5640_MAX_WIDTH 640
#define OV5640_MAX_HEIGHT 480
/* Misc. structures */
struct ov5640_reg {
u16 reg;
u8 val;
};
struct ov5640_priv {
struct v4l2_subdev subdev;
int ident;
u16 chip_id;
u8 revision;
u8 manid;
u8 smiaver;
bool flag_vflip;
bool flag_hflip;
/* For suspend/resume. */
struct v4l2_mbus_framefmt current_mf;
bool current_enable;
};
static const struct ov5640_reg ov5640_defaults[] = {
{ OV5640_SCCB_SYSTEM_CTRL1, 0x11},
{ OV5640_SYSTEM_CTRL, 0x82},
{ OV5640_SYSTEM_CTRL, 0x42},
{ OV5640_SCCB_SYSTEM_CTRL1, 0x03},
{ OV5640_PAD_OUTPUT_ENABLE01, 0x00},
{ OV5640_PAD_OUTPUT_ENABLE02, 0x00},
{ OV5640_SC_PLL_CTRL0, 0x18},
{ OV5640_SC_PLL_CTRL1, 0x14},
{ OV5640_SC_PLL_CTRL2, 0x38},
{ OV5640_SC_PLL_CTRL3, 0x13},
{ 0x4800, 0x24}, /* noncontinuous clock */
{ OV5640_SYSTEM_ROOT_DIVIDER, 0x01},
{ 0x3630, 0x36},
{ 0x3631, 0x0e},
{ 0x3632, 0xe2},
{ 0x3633, 0x12},
{ 0x3621, 0xe0},
{ 0x3704, 0xa0},
{ 0x3703, 0x5a},
{ 0x3715, 0x78},
{ 0x3717, 0x01},
{ 0x370b, 0x60},
{ 0x3705, 0x1a},
{ 0x3905, 0x02},
{ 0x3906, 0x10},
{ 0x3901, 0x0a},
{ 0x3731, 0x12},
{ 0x3600, 0x08},
{ 0x3601, 0x33},
{ 0x302d, 0x60},
{ 0x3620, 0x52},
{ 0x371b, 0x20},
{ 0x471c, 0x50},
{ 0x3a13, 0x43},
{ 0x3a18, 0x00},
{ 0x3a19, 0xf8},
{ 0x3635, 0x13},
{ 0x3636, 0x03},
{ 0x3634, 0x40},
{ 0x3622, 0x01},
{ 0x3c01, 0x34},
{ 0x3c04, 0x28},
{ 0x3c05, 0x98},
{ 0x3c06, 0x00},
{ 0x3c07, 0x08},
{ 0x3c08, 0x00},
{ 0x3c09, 0x1c},
{ 0x3c0a, 0x9c},
{ 0x3c0b, 0x40},
{ OV5640_TIMING_TC_REG20, 0x41},
{ OV5640_TIMING_TC_REG21, 0x01},
{ 0x3814, 0x31},
{ 0x3815, 0x31},
{ 0x3800, 0x00},
{ 0x3801, 0x00},
{ 0x3802, 0x00},
{ 0x3803, 0x04},
{ 0x3804, 0x0a},
{ 0x3805, 0x3f},
{ 0x3806, 0x07},
{ 0x3807, 0x9b},
{ 0x3808, 0x02},
{ 0x3809, 0x80},
{ 0x380a, 0x01},
{ 0x380b, 0xe0},
{ 0x380c, 0x07},
{ 0x380d, 0x68},
{ 0x380e, 0x03},
{ 0x380f, 0xd8},
{ 0x3810, 0x00},
{ 0x3811, 0x10},
{ 0x3812, 0x00},
{ 0x3813, 0x06},
{ 0x3618, 0x00},
{ 0x3612, 0x29},
{ 0x3708, 0x64},
{ 0x3709, 0x52},
{ 0x370c, 0x03},
/* AEC/AGC Power Down Domain Control */
{ OV5640_AEC_MAX_EXPO_60HZ_HI, 0x03},
{ OV5640_AEC_MAX_EXPO_60HZ_LO, 0xd8},
{ OV5640_AEC_B50_STEP_HI, 0x01},
{ OV5640_AEC_B50_STEP_LO, 0x27},
{ OV5640_AEC_B60_STEP_HI, 0x00},
{ OV5640_AEC_B60_STEP_LO, 0xf6},
{ OV5640_AEC_CTRL0E, 0x03},
{ OV5640_AEC_CTRL0D, 0x04},
{ OV5640_AEC_MAX_EXPO_50HZ_HI, 0x03},
{ OV5640_AEC_MAX_EXPO_50HZ_LO, 0xd8},
{ 0x4001, 0x02},
{ 0x4004, 0x02},
{ 0x3000, 0x00},
{ 0x3002, 0x1c},
{ 0x3004, 0xff},
{ 0x3006, 0xc3},
{ 0x300e, 0x45},
{ 0x302e, 0x08},
/* org:30 bit[3:0]
0x0:YUYV 0x1:YVYU 0x2:UYVY
0x3:VYUY 0xF:UYVY 0x4~0xE:Not-allowed
*/
{ 0x4300, 0x32},
{ 0x501f, 0x00},
{ 0x4713, 0x03},
{ 0x4407, 0x04},
{ 0x440e, 0x00},
{ 0x460b, 0x35},
{ 0x460c, 0x22},
{ 0x4837, 0x44},
{ 0x3824, 0x02},
{ 0x5000, 0xa7},
{ 0x5001, 0xa3},
/* AWB Control */
{ OV5640_AWB_CTRL00, 0xff}, { OV5640_AWB_CTRL01, 0xf2},
{ OV5640_AWB_CTRL02, 0x00}, { OV5640_AWB_CTRL03, 0x14},
{ OV5640_AWB_CTRL04, 0x25}, { OV5640_AWB_CTRL05, 0x24},
{ OV5640_AWB_CTRL06, 0x09}, { OV5640_AWB_CTRL07, 0x09},
{ OV5640_AWB_CTRL08, 0x09}, { OV5640_AWB_CTRL09, 0x75},
{ OV5640_AWB_CTRL10, 0x54}, { OV5640_AWB_CTRL11, 0xe0},
{ OV5640_AWB_CTRL12, 0xb2}, { OV5640_AWB_CTRL13, 0x42},
{ OV5640_AWB_CTRL14, 0x3d}, { OV5640_AWB_CTRL15, 0x56},
{ OV5640_AWB_CTRL16, 0x46}, { OV5640_AWB_CTRL17, 0xf8},
{ OV5640_AWB_CTRL18, 0x04}, { OV5640_AWB_CTRL19, 0x70},
{ OV5640_AWB_CTRL20, 0xf0}, { OV5640_AWB_CTRL21, 0xf0},
{ OV5640_AWB_CTRL22, 0x03}, { OV5640_AWB_CTRL23, 0x01},
{ OV5640_AWB_CTRL24, 0x04}, { OV5640_AWB_CTRL25, 0x12},
{ OV5640_AWB_CTRL26, 0x04}, { OV5640_AWB_CTRL27, 0x00},
{ OV5640_AWB_CTRL28, 0x06}, { OV5640_AWB_CTRL29, 0x82},
{ OV5640_AWB_CTRL30, 0x38},
/* CMX Control */
{ OV5640_CMX1, 0x1e},
{ OV5640_CMX2, 0x5b},
{ OV5640_CMX3, 0x08},
{ OV5640_CMX4, 0x0a},
{ OV5640_CMX5, 0x7e},
{ OV5640_CMX6, 0x88},
{ OV5640_CMX7, 0x7c},
{ OV5640_CMX8, 0x6c},
{ OV5640_CMX9, 0x10},
{ OV5640_CMXSIGN_HI, 0x01},
{ OV5640_CMXSIGN_LO, 0x98},
/* CIP Control */
{ OV5640_CIP_SHARPENMT_THRESHOLD_1, 0x08},
{ OV5640_CIP_SHARPENMT_THRESHOLD_2, 0x30},
{ OV5640_CIP_SHARPENMT_OFFSET_1, 0x10},
{ OV5640_CIP_SHARPENMT_OFFSET_2, 0x00},
{ OV5640_CIP_DNS_THRESHOLD_1, 0x08},
{ OV5640_CIP_DNS_THRESHOLD_2, 0x30},
{ OV5640_CIP_DNS_OFFSET_1, 0x08},
{ OV5640_CIP_DNS_OFFSET_2, 0x16},
{ OV5640_CIP_SHARPENTH_THRESHOLD_1, 0x08},
{ OV5640_CIP_SHARPENTH_THRESHOLD_2, 0x30},
{ OV5640_CIP_SHARPENTH_OFFSET_1, 0x04},
{ OV5640_CIP_SHARPENTH_OFFSET_2, 0x06},
/* Gamma Control */
{ OV5640_GAMMA_CTRL00, 0x01},
{ OV5640_YST00, 0x08}, { OV5640_YST01, 0x14},
{ OV5640_YST02, 0x28}, { OV5640_YST03, 0x51},
{ OV5640_YST04, 0x65}, { OV5640_YST05, 0x71},
{ OV5640_YST06, 0x7d}, { OV5640_YST07, 0x87},
{ OV5640_YST08, 0x91}, { OV5640_YST09, 0x9a},
{ OV5640_YST0A, 0xaa}, { OV5640_YST0B, 0xb8},
{ OV5640_YST0C, 0xcd}, { OV5640_YST0D, 0xdd},
{ OV5640_YST0E, 0xea}, { OV5640_YST0F, 0x1d},
/* SDE Control */
{ OV5640_SDE_CTRL_0, 0x02},
{ OV5640_SDE_CTRL_3, 0x40},
{ OV5640_SDE_CTRL_4, 0x10},
{ OV5640_SDE_CTRL_9, 0x10},
{ OV5640_SDE_CTRL_10, 0x00},
{ OV5640_SDE_CTRL_11, 0xf8},
/* LENC Control */
{ OV5640_GMTRX00, 0x23}, { OV5640_GMTRX01, 0x14},
{ OV5640_GMTRX02, 0x0f}, { OV5640_GMTRX03, 0x0f},
{ OV5640_GMTRX04, 0x12}, { OV5640_GMTRX05, 0x26},
{ OV5640_GMTRX10, 0x0c}, { OV5640_GMTRX11, 0x08},
{ OV5640_GMTRX12, 0x05}, { OV5640_GMTRX13, 0x05},
{ OV5640_GMTRX14, 0x08}, { OV5640_GMTRX15, 0x0d},
{ OV5640_GMTRX20, 0x08}, { OV5640_GMTRX21, 0x03},
{ OV5640_GMTRX22, 0x00}, { OV5640_GMTRX23, 0x00},
{ OV5640_GMTRX24, 0x03}, { OV5640_GMTRX25, 0x09},
{ OV5640_GMTRX30, 0x07}, { OV5640_GMTRX31, 0x03},
{ OV5640_GMTRX32, 0x00}, { OV5640_GMTRX33, 0x01},
{ OV5640_GMTRX34, 0x03}, { OV5640_GMTRX35, 0x08},
{ OV5640_GMTRX40, 0x0d}, { OV5640_GMTRX41, 0x08},
{ OV5640_GMTRX42, 0x05}, { OV5640_GMTRX43, 0x06},
{ OV5640_GMTRX44, 0x08}, { OV5640_GMTRX45, 0x0e},
{ OV5640_GMTRX50, 0x29}, { OV5640_GMTRX51, 0x17},
{ OV5640_GMTRX52, 0x11}, { OV5640_GMTRX53, 0x11},
{ OV5640_GMTRX54, 0x15}, { OV5640_GMTRX55, 0x28},
{ OV5640_BRMATRX00, 0x46}, { OV5640_BRMATRX01, 0x26},
{ OV5640_BRMATRX02, 0x08}, { OV5640_BRMATRX03, 0x26},
{ OV5640_BRMATRX04, 0x64}, { OV5640_BRMATRX05, 0x26},
{ OV5640_BRMATRX06, 0x24}, { OV5640_BRMATRX07, 0x22},
{ OV5640_BRMATRX08, 0x24}, { OV5640_BRMATRX09, 0x24},
{ OV5640_BRMATRX20, 0x06}, { OV5640_BRMATRX21, 0x22},
{ OV5640_BRMATRX22, 0x40}, { OV5640_BRMATRX23, 0x42},
{ OV5640_BRMATRX24, 0x24}, { OV5640_BRMATRX30, 0x26},
{ OV5640_BRMATRX31, 0x24}, { OV5640_BRMATRX32, 0x22},
{ OV5640_BRMATRX33, 0x22}, { OV5640_BRMATRX34, 0x26},
{ OV5640_BRMATRX40, 0x44}, { OV5640_BRMATRX41, 0x24},
{ OV5640_BRMATRX42, 0x26}, { OV5640_BRMATRX43, 0x28},
{ OV5640_BRMATRX44, 0x42}, { OV5640_LENC_BR_OFFSET, 0xce},
{ OV5640_ISP_CTRL37, 0x00},
{ OV5640_AEC_CTRL0F, 0x30},
{ OV5640_AEC_CTRL10, 0x28},
{ OV5640_AEC_CTRL1B, 0x30},
{ OV5640_AEC_CTRL1E, 0x26},
{ OV5640_AEC_CTRL11, 0x60},
{ OV5640_AEC_CTRL1F, 0x14},
{ OV5640_SYSTEM_CTRL, 0x02},
};
static enum v4l2_mbus_pixelcode ov5640_codes[] = {
V4L2_MBUS_FMT_YUYV8_2X8,
};
static const struct v4l2_queryctrl ov5640_controls[] = {
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Flip Vertically",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
{
.id = V4L2_CID_HFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Flip Horizontally",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0,
},
};
/* read a register */
static int ov5640_reg_read(struct i2c_client *client, u16 reg, u8 *val)
{
int ret;
unsigned char data[2] = { reg >> 8, reg & 0xff };
ret = i2c_master_send(client, data, 2);
if (ret < 2) {
dev_err(&client->dev, "%s: i2c read error, reg: %x\n",
__func__, reg);
return ret < 0 ? ret : -EIO;
}
ret = i2c_master_recv(client, val, 1);
if (ret < 1) {
dev_err(&client->dev, "%s: i2c read error, reg: %x\n",
__func__, reg);
return ret < 0 ? ret : -EIO;
}
return 0;
}
/* write a register */
static int ov5640_reg_write(struct i2c_client *client, u16 reg, u8 val)
{
int ret;
unsigned char data[3] = { reg >> 8, reg & 0xff, val };
ret = i2c_master_send(client, data, 3);
if (ret < 3) {
dev_err(&client->dev, "%s: i2c write error, reg: %x\n",
__func__, reg);
return ret < 0 ? ret : -EIO;
}
return 0;
}
/* Read a register, alter its bits, write it back */
static int ov5640_reg_rmw(struct i2c_client *client, u16 reg, u8 set, u8 unset)
{
u8 val;
int ret;
ret = ov5640_reg_read(client, reg, &val);
if (ret < 0) {
dev_err(&client->dev,
"[Read]-Modify-Write of register 0x%04x failed!\n",
reg);
return ret;
}
val |= set;
val &= ~unset;
ret = ov5640_reg_write(client, reg, val);
if (ret < 0) {
dev_err(&client->dev,
"Read-Modify-[Write] of register 0x%04x failed!\n",
reg);
return ret;
}
return 0;
}
static int ov5640_reg_write_array(struct i2c_client *client,
const struct ov5640_reg *regarray,
int regarraylen)
{
int i;
int ret;
for (i = 0; i < regarraylen; i++) {
ret = ov5640_reg_write(client,
regarray[i].reg, regarray[i].val);
if (ret < 0)
return ret;
}
return 0;
}
/* Start/Stop streaming from the device */
static int ov5640_s_stream(struct v4l2_subdev *sd, int enable)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov5640_priv *priv = to_ov5640(sd);
int ret;
/* Program orientation register. */
if (priv->flag_vflip)
ret = ov5640_reg_rmw(client, OV5640_TIMING_TC_REG20, 0x2, 0);
else
ret = ov5640_reg_rmw(client, OV5640_TIMING_TC_REG20, 0, 0x2);
if (ret < 0)
return ret;
if (priv->flag_hflip)
ret = ov5640_reg_rmw(client, OV5640_TIMING_TC_REG21, 0x2, 0);
else
ret = ov5640_reg_rmw(client, OV5640_TIMING_TC_REG21, 0, 0x2);
if (ret < 0)
return ret;
if (!enable) {
/* Software Reset */
ret = ov5640_reg_write(client, OV5640_SYSTEM_CTRL, 0x82);
if (!ret)
/* Setting Streaming to Standby */
ret = ov5640_reg_write(client, OV5640_SYSTEM_CTRL,
0x42);
}
priv->current_enable = enable;
return ret;
}
/* Alter bus settings on camera side */
static int ov5640_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
return 0;
}
/* Request bus settings on camera side */
static unsigned long ov5640_query_bus_param(struct soc_camera_device *icd)
{
struct soc_camera_link *icl = to_soc_camera_link(icd);
unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
return soc_camera_apply_sensor_flags(icl, flags);
}
/* select nearest higher resolution for capture */
static void ov5640_res_roundup(u32 *width, u32 *height)
{
/* Width must be a multiple of 4 pixels. */
*width = ALIGN(*width, 4);
/* Max resolution is 1280x720 (720p). */
if (*width > OV5640_MAX_WIDTH)
*width = OV5640_MAX_WIDTH;
if (*height > OV5640_MAX_HEIGHT)
*height = OV5640_MAX_HEIGHT;
}
/* Setup registers according to resolution and color encoding */
static int ov5640_set_res(struct i2c_client *client, u32 width, u32 height)
{
/* Note, this stuff is bogus. It's just copied from ov9740.c. */
#if 0
u32 x_start;
u32 y_start;
u32 x_end;
u32 y_end;
bool scaling = 0;
u32 scale_input_x;
u32 scale_input_y;
int ret;
if ((width != OV5640_MAX_WIDTH) || (height != OV5640_MAX_HEIGHT))
scaling = 1;
/*
* Try to use as much of the sensor area as possible when supporting
* smaller resolutions. Depending on the aspect ratio of the
* chosen resolution, we can either use the full width of the sensor,
* or the full height of the sensor (or both if the aspect ratio is
* the same as 1280x720.
*/
if ((OV5640_MAX_WIDTH * height) > (OV5640_MAX_HEIGHT * width)) {
scale_input_x = (OV5640_MAX_HEIGHT * width) / height;
scale_input_y = OV5640_MAX_HEIGHT;
} else {
scale_input_x = OV5640_MAX_WIDTH;
scale_input_y = (OV5640_MAX_WIDTH * height) / width;
}
/* These describe the area of the sensor to use. */
x_start = (OV5640_MAX_WIDTH - scale_input_x) / 2;
y_start = (OV5640_MAX_HEIGHT - scale_input_y) / 2;
x_end = x_start + scale_input_x - 1;
y_end = y_start + scale_input_y - 1;
ret = ov5640_reg_write(client, OV5640_X_ADDR_START_HI, x_start >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_X_ADDR_START_LO, x_start & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_ADDR_START_HI, y_start >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_ADDR_START_LO, y_start & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_X_ADDR_END_HI, x_end >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_X_ADDR_END_LO, x_end & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_ADDR_END_HI, y_end >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_ADDR_END_LO, y_end & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_X_OUTPUT_SIZE_HI, width >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_X_OUTPUT_SIZE_LO, width & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_OUTPUT_SIZE_HI, height >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_Y_OUTPUT_SIZE_LO, height & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL1E, scale_input_x >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL1F, scale_input_x & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL20, scale_input_y >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL21, scale_input_y & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_VFIFO_READ_START_HI,
(scale_input_x - width) >> 8);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_VFIFO_READ_START_LO,
(scale_input_x - width) & 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL00, 0xff);
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL01, 0xef |
(scaling << 4));
if (ret)
goto done;
ret = ov5640_reg_write(client, OV5640_ISP_CTRL03, 0xff);
done:
return ret;
#endif
return 0;
}
/* set the format we will capture in */
static int ov5640_s_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov5640_priv *priv = to_ov5640(sd);
enum v4l2_colorspace cspace;
enum v4l2_mbus_pixelcode code = mf->code;
int ret;
ov5640_res_roundup(&mf->width, &mf->height);
switch (code) {
case V4L2_MBUS_FMT_YUYV8_2X8:
cspace = V4L2_COLORSPACE_SRGB;
break;
default:
return -EINVAL;
}
ret = ov5640_reg_write_array(client, ov5640_defaults,
ARRAY_SIZE(ov5640_defaults));
if (ret < 0)
return ret;
ret = ov5640_set_res(client, mf->width, mf->height);
if (ret < 0)
return ret;
mf->code = code;
mf->colorspace = cspace;
memcpy(&priv->current_mf, mf, sizeof(struct v4l2_mbus_framefmt));
return ret;
}
static int ov5640_try_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
ov5640_res_roundup(&mf->width, &mf->height);
mf->field = V4L2_FIELD_NONE;
mf->code = V4L2_MBUS_FMT_YUYV8_2X8;
mf->colorspace = V4L2_COLORSPACE_SRGB;
return 0;
}
static int ov5640_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
enum v4l2_mbus_pixelcode *code)
{
if (index >= ARRAY_SIZE(ov5640_codes))
return -EINVAL;
*code = ov5640_codes[index];
return 0;
}
static int ov5640_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
{
a->bounds.left = 0;
a->bounds.top = 0;
a->bounds.width = OV5640_MAX_WIDTH;
a->bounds.height = OV5640_MAX_HEIGHT;
a->defrect = a->bounds;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
a->pixelaspect.numerator = 1;
a->pixelaspect.denominator = 1;
return 0;
}
static int ov5640_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
a->c.left = 0;
a->c.top = 0;
a->c.width = OV5640_MAX_WIDTH;
a->c.height = OV5640_MAX_HEIGHT;
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
return 0;
}
/* Get status of additional camera capabilities */
static int ov5640_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct ov5640_priv *priv = to_ov5640(sd);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
ctrl->value = priv->flag_vflip;
break;
case V4L2_CID_HFLIP:
ctrl->value = priv->flag_hflip;
break;
default:
return -EINVAL;
}
return 0;
}
/* Set status of additional camera capabilities */
static int ov5640_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct ov5640_priv *priv = to_ov5640(sd);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
priv->flag_vflip = ctrl->value;
break;
case V4L2_CID_HFLIP:
priv->flag_hflip = ctrl->value;
break;
default:
return -EINVAL;
}
return 0;
}
/* Get chip identification */
static int ov5640_g_chip_ident(struct v4l2_subdev *sd,
struct v4l2_dbg_chip_ident *id)
{
struct ov5640_priv *priv = to_ov5640(sd);
id->ident = priv->ident;
id->revision = priv->revision;
return 0;
}
static int ov5640_s_power(struct v4l2_subdev *sd, int on)
{
struct ov5640_priv *priv = to_ov5640(sd);
if (!priv->current_enable)
return 0;
if (on) {
ov5640_s_fmt(sd, &priv->current_mf);
ov5640_s_stream(sd, priv->current_enable);
} else {
ov5640_s_stream(sd, 0);
priv->current_enable = true;
}
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int ov5640_get_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
u8 val;
if (reg->reg & ~0xffff)
return -EINVAL;
reg->size = 2;
ret = ov5640_reg_read(client, reg->reg, &val);
if (ret)
return ret;
reg->val = (__u64)val;
return ret;
}
static int ov5640_set_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (reg->reg & ~0xffff || reg->val & ~0xff)
return -EINVAL;
return ov5640_reg_write(client, reg->reg, reg->val);
}
#endif
static int ov5640_video_probe(struct soc_camera_device *icd,
struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov5640_priv *priv = to_ov5640(sd);
u8 chip_id_hi, chip_id_lo;
int ret;
/* We must have a parent by now. And it cannot be a wrong one. */
BUG_ON(!icd->parent ||
to_soc_camera_host(icd->parent)->nr != icd->iface);
/*
* check and show product ID and manufacturer ID
*/
ret = ov5640_reg_read(client, OV5640_CHIP_ID_HI, &chip_id_hi);
if (ret < 0)
goto err;
ret = ov5640_reg_read(client, OV5640_CHIP_ID_LO, &chip_id_lo);
if (ret < 0)
goto err;
priv->chip_id = (chip_id_hi << 8) | chip_id_lo;
if (priv->chip_id != 0x5640) {
ret = -ENODEV;
goto err;
}
priv->ident = V4L2_IDENT_OV5640;
dev_info(&client->dev, "Chip ID 0x%04x\n", priv->chip_id);
err:
return ret;
}
static struct soc_camera_ops ov5640_ops = {
.set_bus_param = ov5640_set_bus_param,
.query_bus_param = ov5640_query_bus_param,
.controls = ov5640_controls,
.num_controls = ARRAY_SIZE(ov5640_controls),
};
static struct v4l2_subdev_video_ops ov5640_video_ops = {
.s_stream = ov5640_s_stream,
.s_mbus_fmt = ov5640_s_fmt,
.try_mbus_fmt = ov5640_try_fmt,
.enum_mbus_fmt = ov5640_enum_fmt,
.cropcap = ov5640_cropcap,
.g_crop = ov5640_g_crop,
};
static struct v4l2_subdev_core_ops ov5640_core_ops = {
.g_ctrl = ov5640_g_ctrl,
.s_ctrl = ov5640_s_ctrl,
.g_chip_ident = ov5640_g_chip_ident,
.s_power = ov5640_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = ov5640_get_register,
.s_register = ov5640_set_register,
#endif
};
static struct v4l2_subdev_ops ov5640_subdev_ops = {
.core = &ov5640_core_ops,
.video = &ov5640_video_ops,
};
/*
* i2c_driver function
*/
static int ov5640_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct ov5640_priv *priv;
struct soc_camera_device *icd = client->dev.platform_data;
struct soc_camera_link *icl;
int ret;
if (!icd) {
dev_err(&client->dev, "Missing soc-camera data!\n");
return -EINVAL;
}
icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "Missing platform_data for driver\n");
return -EINVAL;
}
priv = kzalloc(sizeof(struct ov5640_priv), GFP_KERNEL);
if (!priv) {
dev_err(&client->dev, "Failed to allocate private data!\n");
return -ENOMEM;
}
v4l2_i2c_subdev_init(&priv->subdev, client, &ov5640_subdev_ops);
icd->ops = &ov5640_ops;
ret = ov5640_video_probe(icd, client);
if (ret < 0) {
icd->ops = NULL;
kfree(priv);
}
return ret;
}
static int ov5640_remove(struct i2c_client *client)
{
struct ov5640_priv *priv = i2c_get_clientdata(client);
kfree(priv);
return 0;
}
static const struct i2c_device_id ov5640_id[] = {
{ "ov5640", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ov5640_id);
static struct i2c_driver ov5640_i2c_driver = {
.driver = {
.name = "ov5640",
},
.probe = ov5640_probe,
.remove = ov5640_remove,
.id_table = ov5640_id,
};
static int __init ov5640_module_init(void)
{
return i2c_add_driver(&ov5640_i2c_driver);
}
static void __exit ov5640_module_exit(void)
{
i2c_del_driver(&ov5640_i2c_driver);
}
module_init(ov5640_module_init);
module_exit(ov5640_module_exit);
MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV5640");
MODULE_AUTHOR("Andrew Chew ");
MODULE_LICENSE("GPL v2");