diff options
Diffstat (limited to 'drivers/media/i2c/soc_camera/ov2640.c')
| -rw-r--r-- | drivers/media/i2c/soc_camera/ov2640.c | 1195 |
1 files changed, 0 insertions, 1195 deletions
diff --git a/drivers/media/i2c/soc_camera/ov2640.c b/drivers/media/i2c/soc_camera/ov2640.c deleted file mode 100644 index 2a0620086aa5..000000000000 --- a/drivers/media/i2c/soc_camera/ov2640.c +++ /dev/null @@ -1,1195 +0,0 @@ -/* - * ov2640 Camera Driver - * - * Copyright (C) 2010 Alberto Panizzo <maramaopercheseimorto@gmail.com> - * - * Based on ov772x, ov9640 drivers and previous non merged implementations. - * - * Copyright 2005-2009 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright (C) 2006, OmniVision - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/gpio/consumer.h> -#include <linux/of_gpio.h> -#include <linux/v4l2-mediabus.h> -#include <linux/videodev2.h> - -#include <media/soc_camera.h> -#include <media/v4l2-clk.h> -#include <media/v4l2-subdev.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-image-sizes.h> - -#define VAL_SET(x, mask, rshift, lshift) \ - ((((x) >> rshift) & mask) << lshift) -/* - * DSP registers - * register offset for BANK_SEL == BANK_SEL_DSP - */ -#define R_BYPASS 0x05 /* Bypass DSP */ -#define R_BYPASS_DSP_BYPAS 0x01 /* Bypass DSP, sensor out directly */ -#define R_BYPASS_USE_DSP 0x00 /* Use the internal DSP */ -#define QS 0x44 /* Quantization Scale Factor */ -#define CTRLI 0x50 -#define CTRLI_LP_DP 0x80 -#define CTRLI_ROUND 0x40 -#define CTRLI_V_DIV_SET(x) VAL_SET(x, 0x3, 0, 3) -#define CTRLI_H_DIV_SET(x) VAL_SET(x, 0x3, 0, 0) -#define HSIZE 0x51 /* H_SIZE[7:0] (real/4) */ -#define HSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) -#define VSIZE 0x52 /* V_SIZE[7:0] (real/4) */ -#define VSIZE_SET(x) VAL_SET(x, 0xFF, 2, 0) -#define XOFFL 0x53 /* OFFSET_X[7:0] */ -#define XOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) -#define YOFFL 0x54 /* OFFSET_Y[7:0] */ -#define YOFFL_SET(x) VAL_SET(x, 0xFF, 0, 0) -#define VHYX 0x55 /* Offset and size completion */ -#define VHYX_VSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 7) -#define VHYX_HSIZE_SET(x) VAL_SET(x, 0x1, (8+2), 3) -#define VHYX_YOFF_SET(x) VAL_SET(x, 0x3, 8, 4) -#define VHYX_XOFF_SET(x) VAL_SET(x, 0x3, 8, 0) -#define DPRP 0x56 -#define TEST 0x57 /* Horizontal size completion */ -#define TEST_HSIZE_SET(x) VAL_SET(x, 0x1, (9+2), 7) -#define ZMOW 0x5A /* Zoom: Out Width OUTW[7:0] (real/4) */ -#define ZMOW_OUTW_SET(x) VAL_SET(x, 0xFF, 2, 0) -#define ZMOH 0x5B /* Zoom: Out Height OUTH[7:0] (real/4) */ -#define ZMOH_OUTH_SET(x) VAL_SET(x, 0xFF, 2, 0) -#define ZMHH 0x5C /* Zoom: Speed and H&W completion */ -#define ZMHH_ZSPEED_SET(x) VAL_SET(x, 0x0F, 0, 4) -#define ZMHH_OUTH_SET(x) VAL_SET(x, 0x1, (8+2), 2) -#define ZMHH_OUTW_SET(x) VAL_SET(x, 0x3, (8+2), 0) -#define BPADDR 0x7C /* SDE Indirect Register Access: Address */ -#define BPDATA 0x7D /* SDE Indirect Register Access: Data */ -#define CTRL2 0x86 /* DSP Module enable 2 */ -#define CTRL2_DCW_EN 0x20 -#define CTRL2_SDE_EN 0x10 -#define CTRL2_UV_ADJ_EN 0x08 -#define CTRL2_UV_AVG_EN 0x04 -#define CTRL2_CMX_EN 0x01 -#define CTRL3 0x87 /* DSP Module enable 3 */ -#define CTRL3_BPC_EN 0x80 -#define CTRL3_WPC_EN 0x40 -#define SIZEL 0x8C /* Image Size Completion */ -#define SIZEL_HSIZE8_11_SET(x) VAL_SET(x, 0x1, 11, 6) -#define SIZEL_HSIZE8_SET(x) VAL_SET(x, 0x7, 0, 3) -#define SIZEL_VSIZE8_SET(x) VAL_SET(x, 0x7, 0, 0) -#define HSIZE8 0xC0 /* Image Horizontal Size HSIZE[10:3] */ -#define HSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) -#define VSIZE8 0xC1 /* Image Vertical Size VSIZE[10:3] */ -#define VSIZE8_SET(x) VAL_SET(x, 0xFF, 3, 0) -#define CTRL0 0xC2 /* DSP Module enable 0 */ -#define CTRL0_AEC_EN 0x80 -#define CTRL0_AEC_SEL 0x40 -#define CTRL0_STAT_SEL 0x20 -#define CTRL0_VFIRST 0x10 -#define CTRL0_YUV422 0x08 -#define CTRL0_YUV_EN 0x04 -#define CTRL0_RGB_EN 0x02 -#define CTRL0_RAW_EN 0x01 -#define CTRL1 0xC3 /* DSP Module enable 1 */ -#define CTRL1_CIP 0x80 -#define CTRL1_DMY 0x40 -#define CTRL1_RAW_GMA 0x20 -#define CTRL1_DG 0x10 -#define CTRL1_AWB 0x08 -#define CTRL1_AWB_GAIN 0x04 -#define CTRL1_LENC 0x02 -#define CTRL1_PRE 0x01 -#define R_DVP_SP 0xD3 /* DVP output speed control */ -#define R_DVP_SP_AUTO_MODE 0x80 -#define R_DVP_SP_DVP_MASK 0x3F /* DVP PCLK = sysclk (48)/[6:0] (YUV0); - * = sysclk (48)/(2*[6:0]) (RAW);*/ -#define IMAGE_MODE 0xDA /* Image Output Format Select */ -#define IMAGE_MODE_Y8_DVP_EN 0x40 -#define IMAGE_MODE_JPEG_EN 0x10 -#define IMAGE_MODE_YUV422 0x00 -#define IMAGE_MODE_RAW10 0x04 /* (DVP) */ -#define IMAGE_MODE_RGB565 0x08 -#define IMAGE_MODE_HREF_VSYNC 0x02 /* HREF timing select in DVP JPEG output - * mode (0 for HREF is same as sensor) */ -#define IMAGE_MODE_LBYTE_FIRST 0x01 /* Byte swap enable for DVP - * 1: Low byte first UYVY (C2[4] =0) - * VYUY (C2[4] =1) - * 0: High byte first YUYV (C2[4]=0) - * YVYU (C2[4] = 1) */ -#define RESET 0xE0 /* Reset */ -#define RESET_MICROC 0x40 -#define RESET_SCCB 0x20 -#define RESET_JPEG 0x10 -#define RESET_DVP 0x04 -#define RESET_IPU 0x02 -#define RESET_CIF 0x01 -#define REGED 0xED /* Register ED */ -#define REGED_CLK_OUT_DIS 0x10 -#define MS_SP 0xF0 /* SCCB Master Speed */ -#define SS_ID 0xF7 /* SCCB Slave ID */ -#define SS_CTRL 0xF8 /* SCCB Slave Control */ -#define SS_CTRL_ADD_AUTO_INC 0x20 -#define SS_CTRL_EN 0x08 -#define SS_CTRL_DELAY_CLK 0x04 -#define SS_CTRL_ACC_EN 0x02 -#define SS_CTRL_SEN_PASS_THR 0x01 -#define MC_BIST 0xF9 /* Microcontroller misc register */ -#define MC_BIST_RESET 0x80 /* Microcontroller Reset */ -#define MC_BIST_BOOT_ROM_SEL 0x40 -#define MC_BIST_12KB_SEL 0x20 -#define MC_BIST_12KB_MASK 0x30 -#define MC_BIST_512KB_SEL 0x08 -#define MC_BIST_512KB_MASK 0x0C -#define MC_BIST_BUSY_BIT_R 0x02 -#define MC_BIST_MC_RES_ONE_SH_W 0x02 -#define MC_BIST_LAUNCH 0x01 -#define BANK_SEL 0xFF /* Register Bank Select */ -#define BANK_SEL_DSP 0x00 -#define BANK_SEL_SENS 0x01 - -/* - * Sensor registers - * register offset for BANK_SEL == BANK_SEL_SENS - */ -#define GAIN 0x00 /* AGC - Gain control gain setting */ -#define COM1 0x03 /* Common control 1 */ -#define COM1_1_DUMMY_FR 0x40 -#define COM1_3_DUMMY_FR 0x80 -#define COM1_7_DUMMY_FR 0xC0 -#define COM1_VWIN_LSB_UXGA 0x0F -#define COM1_VWIN_LSB_SVGA 0x0A -#define COM1_VWIN_LSB_CIF 0x06 -#define REG04 0x04 /* Register 04 */ -#define REG04_DEF 0x20 /* Always set */ -#define REG04_HFLIP_IMG 0x80 /* Horizontal mirror image ON/OFF */ -#define REG04_VFLIP_IMG 0x40 /* Vertical flip image ON/OFF */ -#define REG04_VREF_EN 0x10 -#define REG04_HREF_EN 0x08 -#define REG04_AEC_SET(x) VAL_SET(x, 0x3, 0, 0) -#define REG08 0x08 /* Frame Exposure One-pin Control Pre-charge Row Num */ -#define COM2 0x09 /* Common control 2 */ -#define COM2_SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ - /* Output drive capability */ -#define COM2_OCAP_Nx_SET(N) (((N) - 1) & 0x03) /* N = [1x .. 4x] */ -#define PID 0x0A /* Product ID Number MSB */ -#define VER 0x0B /* Product ID Number LSB */ -#define COM3 0x0C /* Common control 3 */ -#define COM3_BAND_50H 0x04 /* 0 For Banding at 60H */ -#define COM3_BAND_AUTO 0x02 /* Auto Banding */ -#define COM3_SING_FR_SNAPSH 0x01 /* 0 For enable live video output after the - * snapshot sequence*/ -#define AEC 0x10 /* AEC[9:2] Exposure Value */ -#define CLKRC 0x11 /* Internal clock */ -#define CLKRC_EN 0x80 -#define CLKRC_DIV_SET(x) (((x) - 1) & 0x1F) /* CLK = XVCLK/(x) */ -#define COM7 0x12 /* Common control 7 */ -#define COM7_SRST 0x80 /* Initiates system reset. All registers are - * set to factory default values after which - * the chip resumes normal operation */ -#define COM7_RES_UXGA 0x00 /* Resolution selectors for UXGA */ -#define COM7_RES_SVGA 0x40 /* SVGA */ -#define COM7_RES_CIF 0x20 /* CIF */ -#define COM7_ZOOM_EN 0x04 /* Enable Zoom mode */ -#define COM7_COLOR_BAR_TEST 0x02 /* Enable Color Bar Test Pattern */ -#define COM8 0x13 /* Common control 8 */ -#define COM8_DEF 0xC0 /* Banding filter ON/OFF */ -#define COM8_BNDF_EN 0x20 /* Banding filter ON/OFF */ -#define COM8_AGC_EN 0x04 /* AGC Auto/Manual control selection */ -#define COM8_AEC_EN 0x01 /* Auto/Manual Exposure control */ -#define COM9 0x14 /* Common control 9 - * Automatic gain ceiling - maximum AGC value [7:5]*/ -#define COM9_AGC_GAIN_2x 0x00 /* 000 : 2x */ -#define COM9_AGC_GAIN_4x 0x20 /* 001 : 4x */ -#define COM9_AGC_GAIN_8x 0x40 /* 010 : 8x */ -#define COM9_AGC_GAIN_16x 0x60 /* 011 : 16x */ -#define COM9_AGC_GAIN_32x 0x80 /* 100 : 32x */ -#define COM9_AGC_GAIN_64x 0xA0 /* 101 : 64x */ -#define COM9_AGC_GAIN_128x 0xC0 /* 110 : 128x */ -#define COM10 0x15 /* Common control 10 */ -#define COM10_PCLK_HREF 0x20 /* PCLK output qualified by HREF */ -#define COM10_PCLK_RISE 0x10 /* Data is updated at the rising edge of - * PCLK (user can latch data at the next - * falling edge of PCLK). - * 0 otherwise. */ -#define COM10_HREF_INV 0x08 /* Invert HREF polarity: - * HREF negative for valid data*/ -#define COM10_VSINC_INV 0x02 /* Invert VSYNC polarity */ -#define HSTART 0x17 /* Horizontal Window start MSB 8 bit */ -#define HEND 0x18 /* Horizontal Window end MSB 8 bit */ -#define VSTART 0x19 /* Vertical Window start MSB 8 bit */ -#define VEND 0x1A /* Vertical Window end MSB 8 bit */ -#define MIDH 0x1C /* Manufacturer ID byte - high */ -#define MIDL 0x1D /* Manufacturer ID byte - low */ -#define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ -#define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ -#define VV 0x26 /* AGC/AEC Fast mode operating region */ -#define VV_HIGH_TH_SET(x) VAL_SET(x, 0xF, 0, 4) -#define VV_LOW_TH_SET(x) VAL_SET(x, 0xF, 0, 0) -#define REG2A 0x2A /* Dummy pixel insert MSB */ -#define FRARL 0x2B /* Dummy pixel insert LSB */ -#define ADDVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ -#define ADDVFH 0x2E /* MSB of insert dummy lines in Vertical direction */ -#define YAVG 0x2F /* Y/G Channel Average value */ -#define REG32 0x32 /* Common Control 32 */ -#define REG32_PCLK_DIV_2 0x80 /* PCLK freq divided by 2 */ -#define REG32_PCLK_DIV_4 0xC0 /* PCLK freq divided by 4 */ -#define ARCOM2 0x34 /* Zoom: Horizontal start point */ -#define REG45 0x45 /* Register 45 */ -#define FLL 0x46 /* Frame Length Adjustment LSBs */ -#define FLH 0x47 /* Frame Length Adjustment MSBs */ -#define COM19 0x48 /* Zoom: Vertical start point */ -#define ZOOMS 0x49 /* Zoom: Vertical start point */ -#define COM22 0x4B /* Flash light control */ -#define COM25 0x4E /* For Banding operations */ -#define BD50 0x4F /* 50Hz Banding AEC 8 LSBs */ -#define BD60 0x50 /* 60Hz Banding AEC 8 LSBs */ -#define REG5D 0x5D /* AVGsel[7:0], 16-zone average weight option */ -#define REG5E 0x5E /* AVGsel[15:8], 16-zone average weight option */ -#define REG5F 0x5F /* AVGsel[23:16], 16-zone average weight option */ -#define REG60 0x60 /* AVGsel[31:24], 16-zone average weight option */ -#define HISTO_LOW 0x61 /* Histogram Algorithm Low Level */ -#define HISTO_HIGH 0x62 /* Histogram Algorithm High Level */ - -/* - * ID - */ -#define MANUFACTURER_ID 0x7FA2 -#define PID_OV2640 0x2642 -#define VERSION(pid, ver) ((pid << 8) | (ver & 0xFF)) - -/* - * Struct - */ -struct regval_list { - u8 reg_num; - u8 value; -}; - -struct ov2640_win_size { - char *name; - u32 width; - u32 height; - const struct regval_list *regs; -}; - - -struct ov2640_priv { - struct v4l2_subdev subdev; - struct v4l2_ctrl_handler hdl; - u32 cfmt_code; - struct v4l2_clk *clk; - const struct ov2640_win_size *win; - - struct soc_camera_subdev_desc ssdd_dt; - struct gpio_desc *resetb_gpio; - struct gpio_desc *pwdn_gpio; -}; - -/* - * Registers settings - */ - -#define ENDMARKER { 0xff, 0xff } - -static const struct regval_list ov2640_init_regs[] = { - { BANK_SEL, BANK_SEL_DSP }, - { 0x2c, 0xff }, - { 0x2e, 0xdf }, - { BANK_SEL, BANK_SEL_SENS }, - { 0x3c, 0x32 }, - { CLKRC, CLKRC_DIV_SET(1) }, - { COM2, COM2_OCAP_Nx_SET(3) }, - { REG04, REG04_DEF | REG04_HREF_EN }, - { COM8, COM8_DEF | COM8_BNDF_EN | COM8_AGC_EN | COM8_AEC_EN }, - { COM9, COM9_AGC_GAIN_8x | 0x08}, - { 0x2c, 0x0c }, - { 0x33, 0x78 }, - { 0x3a, 0x33 }, - { 0x3b, 0xfb }, - { 0x3e, 0x00 }, - { 0x43, 0x11 }, - { 0x16, 0x10 }, - { 0x39, 0x02 }, - { 0x35, 0x88 }, - { 0x22, 0x0a }, - { 0x37, 0x40 }, - { 0x23, 0x00 }, - { ARCOM2, 0xa0 }, - { 0x06, 0x02 }, - { 0x06, 0x88 }, - { 0x07, 0xc0 }, - { 0x0d, 0xb7 }, - { 0x0e, 0x01 }, - { 0x4c, 0x00 }, - { 0x4a, 0x81 }, - { 0x21, 0x99 }, - { AEW, 0x40 }, - { AEB, 0x38 }, - { VV, VV_HIGH_TH_SET(0x08) | VV_LOW_TH_SET(0x02) }, - { 0x5c, 0x00 }, - { 0x63, 0x00 }, - { FLL, 0x22 }, - { COM3, 0x38 | COM3_BAND_AUTO }, - { REG5D, 0x55 }, - { REG5E, 0x7d }, - { REG5F, 0x7d }, - { REG60, 0x55 }, - { HISTO_LOW, 0x70 }, - { HISTO_HIGH, 0x80 }, - { 0x7c, 0x05 }, - { 0x20, 0x80 }, - { 0x28, 0x30 }, - { 0x6c, 0x00 }, - { 0x6d, 0x80 }, - { 0x6e, 0x00 }, - { 0x70, 0x02 }, - { 0x71, 0x94 }, - { 0x73, 0xc1 }, - { 0x3d, 0x34 }, - { COM7, COM7_RES_UXGA | COM7_ZOOM_EN }, - { 0x5a, 0x57 }, - { BD50, 0xbb }, - { BD60, 0x9c }, - { BANK_SEL, BANK_SEL_DSP }, - { 0xe5, 0x7f }, - { MC_BIST, MC_BIST_RESET | MC_BIST_BOOT_ROM_SEL }, - { 0x41, 0x24 }, - { RESET, RESET_JPEG | RESET_DVP }, - { 0x76, 0xff }, - { 0x33, 0xa0 }, - { 0x42, 0x20 }, - { 0x43, 0x18 }, - { 0x4c, 0x00 }, - { CTRL3, CTRL3_BPC_EN | CTRL3_WPC_EN | 0x10 }, - { 0x88, 0x3f }, - { 0xd7, 0x03 }, - { 0xd9, 0x10 }, - { R_DVP_SP , R_DVP_SP_AUTO_MODE | 0x2 }, - { 0xc8, 0x08 }, - { 0xc9, 0x80 }, - { BPADDR, 0x00 }, - { BPDATA, 0x00 }, - { BPADDR, 0x03 }, - { BPDATA, 0x48 }, - { BPDATA, 0x48 }, - { BPADDR, 0x08 }, - { BPDATA, 0x20 }, - { BPDATA, 0x10 }, - { BPDATA, 0x0e }, - { 0x90, 0x00 }, - { 0x91, 0x0e }, - { 0x91, 0x1a }, - { 0x91, 0x31 }, - { 0x91, 0x5a }, - { 0x91, 0x69 }, - { 0x91, 0x75 }, - { 0x91, 0x7e }, - { 0x91, 0x88 }, - { 0x91, 0x8f }, - { 0x91, 0x96 }, - { 0x91, 0xa3 }, - { 0x91, 0xaf }, - { 0x91, 0xc4 }, - { 0x91, 0xd7 }, - { 0x91, 0xe8 }, - { 0x91, 0x20 }, - { 0x92, 0x00 }, - { 0x93, 0x06 }, - { 0x93, 0xe3 }, - { 0x93, 0x03 }, - { 0x93, 0x03 }, - { 0x93, 0x00 }, - { 0x93, 0x02 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x93, 0x00 }, - { 0x96, 0x00 }, - { 0x97, 0x08 }, - { 0x97, 0x19 }, - { 0x97, 0x02 }, - { 0x97, 0x0c }, - { 0x97, 0x24 }, - { 0x97, 0x30 }, - { 0x97, 0x28 }, - { 0x97, 0x26 }, - { 0x97, 0x02 }, - { 0x97, 0x98 }, - { 0x97, 0x80 }, - { 0x97, 0x00 }, - { 0x97, 0x00 }, - { 0xa4, 0x00 }, - { 0xa8, 0x00 }, - { 0xc5, 0x11 }, - { 0xc6, 0x51 }, - { 0xbf, 0x80 }, - { 0xc7, 0x10 }, - { 0xb6, 0x66 }, - { 0xb8, 0xA5 }, - { 0xb7, 0x64 }, - { 0xb9, 0x7C }, - { 0xb3, 0xaf }, - { 0xb4, 0x97 }, - { 0xb5, 0xFF }, - { 0xb0, 0xC5 }, - { 0xb1, 0x94 }, - { 0xb2, 0x0f }, - { 0xc4, 0x5c }, - { 0xa6, 0x00 }, - { 0xa7, 0x20 }, - { 0xa7, 0xd8 }, - { 0xa7, 0x1b }, - { 0xa7, 0x31 }, - { 0xa7, 0x00 }, - { 0xa7, 0x18 }, - { 0xa7, 0x20 }, - { 0xa7, 0xd8 }, - { 0xa7, 0x19 }, - { 0xa7, 0x31 }, - { 0xa7, 0x00 }, - { 0xa7, 0x18 }, - { 0xa7, 0x20 }, - { 0xa7, 0xd8 }, - { 0xa7, 0x19 }, - { 0xa7, 0x31 }, - { 0xa7, 0x00 }, - { 0xa7, 0x18 }, - { 0x7f, 0x00 }, - { 0xe5, 0x1f }, - { 0xe1, 0x77 }, - { 0xdd, 0x7f }, - { CTRL0, CTRL0_YUV422 | CTRL0_YUV_EN | CTRL0_RGB_EN }, - ENDMARKER, -}; - -/* - * Register settings for window size - * The preamble, setup the internal DSP to input an UXGA (1600x1200) image. - * Then the different zooming configurations will setup the output image size. - */ -static const struct regval_list ov2640_size_change_preamble_regs[] = { - { BANK_SEL, BANK_SEL_DSP }, - { RESET, RESET_DVP }, - { HSIZE8, HSIZE8_SET(UXGA_WIDTH) }, - { VSIZE8, VSIZE8_SET(UXGA_HEIGHT) }, - { CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | - CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN }, - { HSIZE, HSIZE_SET(UXGA_WIDTH) }, - { VSIZE, VSIZE_SET(UXGA_HEIGHT) }, - { XOFFL, XOFFL_SET(0) }, - { YOFFL, YOFFL_SET(0) }, - { VHYX, VHYX_HSIZE_SET(UXGA_WIDTH) | VHYX_VSIZE_SET(UXGA_HEIGHT) | - VHYX_XOFF_SET(0) | VHYX_YOFF_SET(0)}, - { TEST, TEST_HSIZE_SET(UXGA_WIDTH) }, - ENDMARKER, -}; - -#define PER_SIZE_REG_SEQ(x, y, v_div, h_div, pclk_div) \ - { CTRLI, CTRLI_LP_DP | CTRLI_V_DIV_SET(v_div) | \ - CTRLI_H_DIV_SET(h_div)}, \ - { ZMOW, ZMOW_OUTW_SET(x) }, \ - { ZMOH, ZMOH_OUTH_SET(y) }, \ - { ZMHH, ZMHH_OUTW_SET(x) | ZMHH_OUTH_SET(y) }, \ - { R_DVP_SP, pclk_div }, \ - { RESET, 0x00} - -static const struct regval_list ov2640_qcif_regs[] = { - PER_SIZE_REG_SEQ(QCIF_WIDTH, QCIF_HEIGHT, 3, 3, 4), - ENDMARKER, -}; - -static const struct regval_list ov2640_qvga_regs[] = { - PER_SIZE_REG_SEQ(QVGA_WIDTH, QVGA_HEIGHT, 2, 2, 4), - ENDMARKER, -}; - -static const struct regval_list ov2640_cif_regs[] = { - PER_SIZE_REG_SEQ(CIF_WIDTH, CIF_HEIGHT, 2, 2, 8), - ENDMARKER, -}; - -static const struct regval_list ov2640_vga_regs[] = { - PER_SIZE_REG_SEQ(VGA_WIDTH, VGA_HEIGHT, 0, 0, 2), - ENDMARKER, -}; - -static const struct regval_list ov2640_svga_regs[] = { - PER_SIZE_REG_SEQ(SVGA_WIDTH, SVGA_HEIGHT, 1, 1, 2), - ENDMARKER, -}; - -static const struct regval_list ov2640_xga_regs[] = { - PER_SIZE_REG_SEQ(XGA_WIDTH, XGA_HEIGHT, 0, 0, 2), - { CTRLI, 0x00}, - ENDMARKER, -}; - -static const struct regval_list ov2640_sxga_regs[] = { - PER_SIZE_REG_SEQ(SXGA_WIDTH, SXGA_HEIGHT, 0, 0, 2), - { CTRLI, 0x00}, - { R_DVP_SP, 2 | R_DVP_SP_AUTO_MODE }, - ENDMARKER, -}; - -static const struct regval_list ov2640_uxga_regs[] = { - PER_SIZE_REG_SEQ(UXGA_WIDTH, UXGA_HEIGHT, 0, 0, 0), - { CTRLI, 0x00}, - { R_DVP_SP, 0 | R_DVP_SP_AUTO_MODE }, - ENDMARKER, -}; - -#define OV2640_SIZE(n, w, h, r) \ - {.name = n, .width = w , .height = h, .regs = r } - -static const struct ov2640_win_size ov2640_supported_win_sizes[] = { - OV2640_SIZE("QCIF", QCIF_WIDTH, QCIF_HEIGHT, ov2640_qcif_regs), - OV2640_SIZE("QVGA", QVGA_WIDTH, QVGA_HEIGHT, ov2640_qvga_regs), - OV2640_SIZE("CIF", CIF_WIDTH, CIF_HEIGHT, ov2640_cif_regs), - OV2640_SIZE("VGA", VGA_WIDTH, VGA_HEIGHT, ov2640_vga_regs), - OV2640_SIZE("SVGA", SVGA_WIDTH, SVGA_HEIGHT, ov2640_svga_regs), - OV2640_SIZE("XGA", XGA_WIDTH, XGA_HEIGHT, ov2640_xga_regs), - OV2640_SIZE("SXGA", SXGA_WIDTH, SXGA_HEIGHT, ov2640_sxga_regs), - OV2640_SIZE("UXGA", UXGA_WIDTH, UXGA_HEIGHT, ov2640_uxga_regs), -}; - -/* - * Register settings for pixel formats - */ -static const struct regval_list ov2640_format_change_preamble_regs[] = { - { BANK_SEL, BANK_SEL_DSP }, - { R_BYPASS, R_BYPASS_USE_DSP }, - ENDMARKER, -}; - -static const struct regval_list ov2640_yuyv_regs[] = { - { IMAGE_MODE, IMAGE_MODE_YUV422 }, - { 0xd7, 0x03 }, - { 0x33, 0xa0 }, - { 0xe5, 0x1f }, - { 0xe1, 0x67 }, - { RESET, 0x00 }, - { R_BYPASS, R_BYPASS_USE_DSP }, - ENDMARKER, -}; - -static const struct regval_list ov2640_uyvy_regs[] = { - { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_YUV422 }, - { 0xd7, 0x01 }, - { 0x33, 0xa0 }, - { 0xe1, 0x67 }, - { RESET, 0x00 }, - { R_BYPASS, R_BYPASS_USE_DSP }, - ENDMARKER, -}; - -static const struct regval_list ov2640_rgb565_be_regs[] = { - { IMAGE_MODE, IMAGE_MODE_RGB565 }, - { 0xd7, 0x03 }, - { RESET, 0x00 }, - { R_BYPASS, R_BYPASS_USE_DSP }, - ENDMARKER, -}; - -static const struct regval_list ov2640_rgb565_le_regs[] = { - { IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_RGB565 }, - { 0xd7, 0x03 }, - { RESET, 0x00 }, - { R_BYPASS, R_BYPASS_USE_DSP }, - ENDMARKER, -}; - -static u32 ov2640_codes[] = { - MEDIA_BUS_FMT_YUYV8_2X8, - MEDIA_BUS_FMT_UYVY8_2X8, - MEDIA_BUS_FMT_RGB565_2X8_BE, - MEDIA_BUS_FMT_RGB565_2X8_LE, -}; - -/* - * General functions - */ -static struct ov2640_priv *to_ov2640(const struct i2c_client *client) -{ - return container_of(i2c_get_clientdata(client), struct ov2640_priv, - subdev); -} - -static int ov2640_write_array(struct i2c_client *client, - const struct regval_list *vals) -{ - int ret; - - while ((vals->reg_num != 0xff) || (vals->value != 0xff)) { - ret = i2c_smbus_write_byte_data(client, - vals->reg_num, vals->value); - dev_vdbg(&client->dev, "array: 0x%02x, 0x%02x", - vals->reg_num, vals->value); - - if (ret < 0) - return ret; - vals++; - } - return 0; -} - -static int ov2640_mask_set(struct i2c_client *client, - u8 reg, u8 mask, u8 set) -{ - s32 val = i2c_smbus_read_byte_data(client, reg); - if (val < 0) - return val; - - val &= ~mask; - val |= set & mask; - - dev_vdbg(&client->dev, "masks: 0x%02x, 0x%02x", reg, val); - - return i2c_smbus_write_byte_data(client, reg, val); -} - -static int ov2640_reset(struct i2c_client *client) -{ - int ret; - const struct regval_list reset_seq[] = { - {BANK_SEL, BANK_SEL_SENS}, - {COM7, COM7_SRST}, - ENDMARKER, - }; - - ret = ov2640_write_array(client, reset_seq); - if (ret) - goto err; - - msleep(5); -err: - dev_dbg(&client->dev, "%s: (ret %d)", __func__, ret); - return ret; -} - -/* - * soc_camera_ops functions - */ -static int ov2640_s_stream(struct v4l2_subdev *sd, int enable) -{ - return 0; -} - -static int ov2640_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = - &container_of(ctrl->handler, struct ov2640_priv, hdl)->subdev; - struct i2c_client *client = v4l2_get_subdevdata(sd); - u8 val; - int ret; - - ret = i2c_smbus_write_byte_data(client, BANK_SEL, BANK_SEL_SENS); - if (ret < 0) - return ret; - - switch (ctrl->id) { - case V4L2_CID_VFLIP: - val = ctrl->val ? REG04_VFLIP_IMG : 0x00; - return ov2640_mask_set(client, REG04, REG04_VFLIP_IMG, val); - case V4L2_CID_HFLIP: - val = ctrl->val ? REG04_HFLIP_IMG : 0x00; - return ov2640_mask_set(client, REG04, REG04_HFLIP_IMG, val); - } - - return -EINVAL; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int ov2640_g_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - reg->size = 1; - if (reg->reg > 0xff) - return -EINVAL; - - ret = i2c_smbus_read_byte_data(client, reg->reg); - if (ret < 0) - return ret; - - reg->val = ret; - - return 0; -} - -static int ov2640_s_register(struct v4l2_subdev *sd, - const struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (reg->reg > 0xff || - reg->val > 0xff) - return -EINVAL; - - return i2c_smbus_write_byte_data(client, reg->reg, reg->val); -} -#endif - -static int ov2640_s_power(struct v4l2_subdev *sd, int on) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - struct ov2640_priv *priv = to_ov2640(client); - - return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); -} - -/* Select the nearest higher resolution for capture */ -static const struct ov2640_win_size *ov2640_select_win(u32 *width, u32 *height) -{ - int i, default_size = ARRAY_SIZE(ov2640_supported_win_sizes) - 1; - - for (i = 0; i < ARRAY_SIZE(ov2640_supported_win_sizes); i++) { - if (ov2640_supported_win_sizes[i].width >= *width && - ov2640_supported_win_sizes[i].height >= *height) { - *width = ov2640_supported_win_sizes[i].width; - *height = ov2640_supported_win_sizes[i].height; - return &ov2640_supported_win_sizes[i]; - } - } - - *width = ov2640_supported_win_sizes[default_size].width; - *height = ov2640_supported_win_sizes[default_size].height; - return &ov2640_supported_win_sizes[default_size]; -} - -static int ov2640_set_params(struct i2c_client *client, u32 *width, u32 *height, - u32 code) -{ - struct ov2640_priv *priv = to_ov2640(client); - const struct regval_list *selected_cfmt_regs; - int ret; - - /* select win */ - priv->win = ov2640_select_win(width, height); - - /* select format */ - priv->cfmt_code = 0; - switch (code) { - case MEDIA_BUS_FMT_RGB565_2X8_BE: - dev_dbg(&client->dev, "%s: Selected cfmt RGB565 BE", __func__); - selected_cfmt_regs = ov2640_rgb565_be_regs; - break; - case MEDIA_BUS_FMT_RGB565_2X8_LE: - dev_dbg(&client->dev, "%s: Selected cfmt RGB565 LE", __func__); - selected_cfmt_regs = ov2640_rgb565_le_regs; - break; - case MEDIA_BUS_FMT_YUYV8_2X8: - dev_dbg(&client->dev, "%s: Selected cfmt YUYV (YUV422)", __func__); - selected_cfmt_regs = ov2640_yuyv_regs; - break; - case MEDIA_BUS_FMT_UYVY8_2X8: - default: - dev_dbg(&client->dev, "%s: Selected cfmt UYVY", __func__); - selected_cfmt_regs = ov2640_uyvy_regs; - break; - } - - /* reset hardware */ - ov2640_reset(client); - - /* initialize the sensor with default data */ - dev_dbg(&client->dev, "%s: Init default", __func__); - ret = ov2640_write_array(client, ov2640_init_regs); - if (ret < 0) - goto err; - - /* select preamble */ - dev_dbg(&client->dev, "%s: Set size to %s", __func__, priv->win->name); - ret = ov2640_write_array(client, ov2640_size_change_preamble_regs); - if (ret < 0) - goto err; - - /* set size win */ - ret = ov2640_write_array(client, priv->win->regs); - if (ret < 0) - goto err; - - /* cfmt preamble */ - dev_dbg(&client->dev, "%s: Set cfmt", __func__); - ret = ov2640_write_array(client, ov2640_format_change_preamble_regs); - if (ret < 0) - goto err; - - /* set cfmt */ - ret = ov2640_write_array(client, selected_cfmt_regs); - if (ret < 0) - goto err; - - priv->cfmt_code = code; - *width = priv->win->width; - *height = priv->win->height; - - return 0; - -err: - dev_err(&client->dev, "%s: Error %d", __func__, ret); - ov2640_reset(client); - priv->win = NULL; - - return ret; -} - -static int ov2640_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *mf = &format->format; - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct ov2640_priv *priv = to_ov2640(client); - - if (format->pad) - return -EINVAL; - - if (!priv->win) { - u32 width = SVGA_WIDTH, height = SVGA_HEIGHT; - priv->win = ov2640_select_win(&width, &height); - priv->cfmt_code = MEDIA_BUS_FMT_UYVY8_2X8; - } - - mf->width = priv->win->width; - mf->height = priv->win->height; - mf->code = priv->cfmt_code; - mf->colorspace = V4L2_COLORSPACE_SRGB; - mf->field = V4L2_FIELD_NONE; - - return 0; -} - -static int ov2640_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *mf = &format->format; - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (format->pad) - return -EINVAL; - - /* - * select suitable win, but don't store it - */ - ov2640_select_win(&mf->width, &mf->height); - - mf->field = V4L2_FIELD_NONE; - mf->colorspace = V4L2_COLORSPACE_SRGB; - - switch (mf->code) { - case MEDIA_BUS_FMT_RGB565_2X8_BE: - case MEDIA_BUS_FMT_RGB565_2X8_LE: - case MEDIA_BUS_FMT_YUYV8_2X8: - case MEDIA_BUS_FMT_UYVY8_2X8: - break; - default: - mf->code = MEDIA_BUS_FMT_UYVY8_2X8; - break; - } - - if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) - return ov2640_set_params(client, &mf->width, - &mf->height, mf->code); - cfg->try_fmt = *mf; - return 0; -} - -static int ov2640_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->pad || code->index >= ARRAY_SIZE(ov2640_codes)) - return -EINVAL; - - code->code = ov2640_codes[code->index]; - return 0; -} - -static int ov2640_get_selection(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_selection *sel) -{ - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - - switch (sel->target) { - case V4L2_SEL_TGT_CROP_BOUNDS: - case V4L2_SEL_TGT_CROP_DEFAULT: - case V4L2_SEL_TGT_CROP: - sel->r.left = 0; - sel->r.top = 0; - sel->r.width = UXGA_WIDTH; - sel->r.height = UXGA_HEIGHT; - return 0; - default: - return -EINVAL; - } -} - -static int ov2640_video_probe(struct i2c_client *client) -{ - struct ov2640_priv *priv = to_ov2640(client); - u8 pid, ver, midh, midl; - const char *devname; - int ret; - - ret = ov2640_s_power(&priv->subdev, 1); - if (ret < 0) - return ret; - - /* - * check and show product ID and manufacturer ID - */ - i2c_smbus_write_byte_data(client, BANK_SEL, BANK_SEL_SENS); - pid = i2c_smbus_read_byte_data(client, PID); - ver = i2c_smbus_read_byte_data(client, VER); - midh = i2c_smbus_read_byte_data(client, MIDH); - midl = i2c_smbus_read_byte_data(client, MIDL); - - switch (VERSION(pid, ver)) { - case PID_OV2640: - devname = "ov2640"; - break; - default: - dev_err(&client->dev, - "Product ID error %x:%x\n", pid, ver); - ret = -ENODEV; - goto done; - } - - dev_info(&client->dev, - "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", - devname, pid, ver, midh, midl); - - ret = v4l2_ctrl_handler_setup(&priv->hdl); - -done: - ov2640_s_power(&priv->subdev, 0); - return ret; -} - -static const struct v4l2_ctrl_ops ov2640_ctrl_ops = { - .s_ctrl = ov2640_s_ctrl, -}; - -static const struct v4l2_subdev_core_ops ov2640_subdev_core_ops = { -#ifdef CONFIG_VIDEO_ADV_DEBUG - .g_register = ov2640_g_register, - .s_register = ov2640_s_register, -#endif - .s_power = ov2640_s_power, -}; - -static int ov2640_g_mbus_config(struct v4l2_subdev *sd, - struct v4l2_mbus_config *cfg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - - cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | - V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH | - V4L2_MBUS_DATA_ACTIVE_HIGH; - cfg->type = V4L2_MBUS_PARALLEL; - cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); - - return 0; -} - -static const struct v4l2_subdev_video_ops ov2640_subdev_video_ops = { - .s_stream = ov2640_s_stream, - .g_mbus_config = ov2640_g_mbus_config, -}; - -static const struct v4l2_subdev_pad_ops ov2640_subdev_pad_ops = { - .enum_mbus_code = ov2640_enum_mbus_code, - .get_selection = ov2640_get_selection, - .get_fmt = ov2640_get_fmt, - .set_fmt = ov2640_set_fmt, -}; - -static const struct v4l2_subdev_ops ov2640_subdev_ops = { - .core = &ov2640_subdev_core_ops, - .video = &ov2640_subdev_video_ops, - .pad = &ov2640_subdev_pad_ops, -}; - -/* OF probe functions */ -static int ov2640_hw_power(struct device *dev, int on) -{ - struct i2c_client *client = to_i2c_client(dev); - struct ov2640_priv *priv = to_ov2640(client); - - dev_dbg(&client->dev, "%s: %s the camera\n", - __func__, on ? "ENABLE" : "DISABLE"); - - if (priv->pwdn_gpio) - gpiod_direction_output(priv->pwdn_gpio, !on); - - return 0; -} - -static int ov2640_hw_reset(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct ov2640_priv *priv = to_ov2640(client); - - if (priv->resetb_gpio) { - /* Active the resetb pin to perform a reset pulse */ - gpiod_direction_output(priv->resetb_gpio, 1); - usleep_range(3000, 5000); - gpiod_direction_output(priv->resetb_gpio, 0); - } - - return 0; -} - -static int ov2640_probe_dt(struct i2c_client *client, - struct ov2640_priv *priv) -{ - /* Request the reset GPIO deasserted */ - priv->resetb_gpio = devm_gpiod_get_optional(&client->dev, "resetb", - GPIOD_OUT_LOW); - if (!priv->resetb_gpio) - dev_dbg(&client->dev, "resetb gpio is not assigned!\n"); - else if (IS_ERR(priv->resetb_gpio)) - return PTR_ERR(priv->resetb_gpio); - - /* Request the power down GPIO asserted */ - priv->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "pwdn", - GPIOD_OUT_HIGH); - if (!priv->pwdn_gpio) - dev_dbg(&client->dev, "pwdn gpio is not assigned!\n"); - else if (IS_ERR(priv->pwdn_gpio)) - return PTR_ERR(priv->pwdn_gpio); - - /* Initialize the soc_camera_subdev_desc */ - priv->ssdd_dt.power = ov2640_hw_power; - priv->ssdd_dt.reset = ov2640_hw_reset; - client->dev.platform_data = &priv->ssdd_dt; - - return 0; -} - -/* - * i2c_driver functions - */ -static int ov2640_probe(struct i2c_client *client, - const struct i2c_device_id *did) -{ - struct ov2640_priv *priv; - struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - int ret; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - dev_err(&adapter->dev, - "OV2640: I2C-Adapter doesn't support SMBUS\n"); - return -EIO; - } - - priv = devm_kzalloc(&client->dev, sizeof(struct ov2640_priv), GFP_KERNEL); - if (!priv) { - dev_err(&adapter->dev, - "Failed to allocate memory for private data!\n"); - return -ENOMEM; - } - - priv->clk = v4l2_clk_get(&client->dev, "xvclk"); - if (IS_ERR(priv->clk)) - return -EPROBE_DEFER; - - if (!ssdd && !client->dev.of_node) { - dev_err(&client->dev, "Missing platform_data for driver\n"); - ret = -EINVAL; - goto err_clk; - } - - if (!ssdd) { - ret = ov2640_probe_dt(client, priv); - if (ret) - goto err_clk; - } - - v4l2_i2c_subdev_init(&priv->subdev, client, &ov2640_subdev_ops); - v4l2_ctrl_handler_init(&priv->hdl, 2); - v4l2_ctrl_new_std(&priv->hdl, &ov2640_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&priv->hdl, &ov2640_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - priv->subdev.ctrl_handler = &priv->hdl; - if (priv->hdl.error) { - ret = priv->hdl.error; - goto err_clk; - } - - ret = ov2640_video_probe(client); - if (ret < 0) - goto err_videoprobe; - - ret = v4l2_async_register_subdev(&priv->subdev); - if (ret < 0) - goto err_videoprobe; - - dev_info(&adapter->dev, "OV2640 Probed\n"); - - return 0; - -err_videoprobe: - v4l2_ctrl_handler_free(&priv->hdl); -err_clk: - v4l2_clk_put(priv->clk); - return ret; -} - -static int ov2640_remove(struct i2c_client *client) -{ - struct ov2640_priv *priv = to_ov2640(client); - - v4l2_async_unregister_subdev(&priv->subdev); - v4l2_clk_put(priv->clk); - v4l2_device_unregister_subdev(&priv->subdev); - v4l2_ctrl_handler_free(&priv->hdl); - return 0; -} - -static const struct i2c_device_id ov2640_id[] = { - { "ov2640", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ov2640_id); - -static const struct of_device_id ov2640_of_match[] = { - {.compatible = "ovti,ov2640", }, - {}, -}; -MODULE_DEVICE_TABLE(of, ov2640_of_match); - -static struct i2c_driver ov2640_i2c_driver = { - .driver = { - .name = "ov2640", - .of_match_table = of_match_ptr(ov2640_of_match), - }, - .probe = ov2640_probe, - .remove = ov2640_remove, - .id_table = ov2640_id, -}; - -module_i2c_driver(ov2640_i2c_driver); - -MODULE_DESCRIPTION("SoC Camera driver for Omni Vision 2640 sensor"); -MODULE_AUTHOR("Alberto Panizzo"); -MODULE_LICENSE("GPL v2"); |