ov7670_ruoge_kerun_r8增加摄像头的亮度20160630_1526.7z

20160630全志R8点亮ov7670.txt 开发板：杭州若格科技，全志R8（Cortex A8） android4.2.2/linux3.4.39 2016/6/30 15:17 1、配置ov7670在android层配置的分辨率为vga（预览/拍照/录像） R:\wyb\ov7670_ruoge_kerun_r8\android\device\softwinner\nuclear-evb\camera.cfg ;------------------------------------------------------------------------------- ; 用于camera的配置 ; ; 采用格式: ; key = key_value ; 注意: 每个key需要顶格写; ; key_value紧跟着key后面的等号后面, 位于同一行中; ; key_value限制大小为256字节以内; ; ;------------------------------------------------------------------------------- ;------------------------------------------------------------------------------- ; 1 for single camera, 2 for double camera ;------------------------------------------------------------------------------- number_of_camera = 1 ;------------------------------------------------------------------------------- ; CAMERA_FACING_BACK ; gc0308 ;------------------------------------------------------------------------------- camera_id = 0 ;------------------------------------------------------------------------------- ; 1 for CAMERA_FACING_FRONT ; 0 for CAMERA_FACING_BACK ;------------------------------------------------------------------------------- camera_facing = 0 ;------------------------------------------------------------------------------- ; camera orientation (0, 90, 180, 270) ;------------------------------------------------------------------------------- camera_orientation = 0 ;------------------------------------------------------------------------------- ; driver device name ;------------------------------------------------------------------------------- camera_device = /dev/video0 ;------------------------------------------------------------------------------- ; device id ; for two camera devices with one CSI ;------------------------------------------------------------------------------- device_id = 0 used_preview_size = 1 key_support_preview_size = 640x480 key_default_preview_size = 640x480 used_picture_size = 1 key_support_picture_size = 640x480 key_default_picture_size = 640x480 used_flash_mode = 0 key_support_flash_mode = on,off,auto key_default_flash_mode = on used_color_effect=1 key_support_color_effect = none,mono,negative,sepia,aqua key_default_color_effect = none used_frame_rate = 1 key_support_frame_rate = 25 key_default_frame_rate = 25 used_focus_mode = 0 key_support_focus_mode = auto,infinity,macro,fixed key_default_focus_mode = auto used_scene_mode = 0 key_support_scene_mode = auto,auto,portrait,landscape,night,night-portrait,theatre,beach,snow,sunset,steadyphoto,fireworks,sports,party,candlelight,barcode key_default_scene_mode = auto used_white_balance = 1 key_support_white_balance = auto,incandescent,fluorescent,warm-fluorescent,daylight,cloudy-daylight key_default_white_balance = auto used_exposure_compensation = 1 key_max_exposure_compensation = 3 key_min_exposure_compensation = -3 key_step_exposure_compensation = 1 key_default_exposure_compensation = 0 ; only for facing back camera in android2.3, should be set in android4.0 used_zoom = 1 key_zoom_supported = true key_smooth_zoom_supported = false key_zoom_ratios = 100,120,150,200,230,250,300 key_max_zoom = 30 key_default_zoom = 0 2、在init.rc（init.sun5i.rc）中加载ov7670.ko这个驱动模块。 R:\wyb\ov7670_ruoge_kerun_r8\android\device\softwinner\nuclear-evb\init.sun5i.rc #csi module insmod /system/vendor/modules/videobuf-core.ko insmod /system/vendor/modules/videobuf-dma-contig.ko insmod /system/vendor/modules/camera.ko #insmod_modules camera #insmod /system/vendor/modules/gc0308.ko #insmod /system/vendor/modules/ov2640.ko insmod /system/vendor/modules/ov7670.ko insmod /system/vendor/modules/sun5i_csi0.ko 3、摄像头ov7670在驱动中的配置： 配置ov7670.c的编译选项，默认已经配置好，不用修改： R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\drivers\media\video\sun5i_csi\device\ov7670.c 注意：这里必须直接设置亮度为最大了，不然摄像头ov7670只能够看见日光灯管了！！！！ static int ov7670_s_exp(struct v4l2_subdev *sd, int value) { int ret; unsigned char com1, com8, aech, aechh; ret = ov7670_read(sd, REG_COM1, &com1) + ov7670_read(sd, REG_COM8, &com8); ov7670_read(sd, REG_AECHH, &aechh); if (ret) return ret; com1 = (com1 & 0xfc) | (value & 0x03); aech = (value >> 2) & 0xff; aechh = (aechh & 0xc0) | ((value >> 10) & 0x3f); ret = ov7670_write(sd, REG_COM1, com1) + ov7670_write(sd, REG_AECH, aech) + ov7670_write(sd, REG_AECHH, aechh); /* Have to turn off AEC as well */ if (ret == 0) ret = ov7670_write(sd, REG_COM8, com8 & ~COM8_AEC); // 2015-6-26 21:08 wenyuanbo light ov7670!!!! ov7670_write(sd, REG_AECH, 0xFF); return ret; } R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\drivers\media\video\sun5i_csi\Kconfig config CSI_OV7670 tristate "OmniVision OV7670 sensor support" default m depends on I2C && VIDEO_V4L2 select CSI_DEV_SEL_SUN5I ---help--- This is a Video4Linux2 sensor-level driver for the OmniVision OV7670 VGA camera. R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\drivers\media\video\sun5i_csi\device\Makefile obj-$(CONFIG_CSI_OV7670) += ov7670.o R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\drivers\media\video\sun5i_csi\camera_detector\camera_list.c #define __OV7670__ 4、不同的电脑之间的SVN配置的问题： R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\modules\mali\DX910-SW-99002-r3p2-01rel3\driver\src\devicedrv\ump\Kbuild # Get subversion revision number, fall back to 0000 if no svn info is available # SVN_REV := $(shell ((svnversion | grep -qv exported && echo -n 'Revision: ' && svnversion) || git svn info | sed -e 's/$$$$/M/' | grep '^Revision: ' || echo ${MALI_RELEASE_NAME}) 2>/dev/null | sed -e 's/^Revision: //') SVN_REV := 1 R:\wyb\ov7670_ruoge_kerun_r8\lichee\linux-3.4\modules\mali\DX910-SW-99002-r3p2-01rel3\driver\src\devicedrv\ump\Makefile.common # Get subversion revision number, fall back to 0000 if no svn info is available # SVN_REV:=$(shell ((svnversion | grep -qv exported && echo -n 'Revision: ' && svnversion) || git svn info | sed -e 's/$$$$/M/' | grep '^Revision: ' || echo ${MALI_RELEASE_NAME}) 2>/dev/null | sed -e 's/^Revision: //') SVN_REV := 1 5、sys_config.fex中配置加载摄像头ov7670，I2C总线序号，从机地址等等。 R:\wyb\ov7670_ruoge_kerun_r8\lichee\tools\pack\chips\sun5i\configs\r8-evb\sys_config.fex ;-------------------------------------------------------------------------------- ;csi gpio configuration ;csi_if: 0:hv_8bit 1:hv_16bit 2:hv_24bit 3:bt656 1ch 4:bt656 2ch 5:bt656 4ch ;csi_mode: 0:sample one csi to one buffer 1:sample two csi to one buffer ;csi_dev_qty: The quantity of devices linked to csi interface ;csi_vflip: flip in vertical direction 0:disable 1:enable ;csi_hflip: flip in horizontal direction 0:disable 1:enable ;csi_stby_mode: 0:not shut down power at standby 1:shut down power at standby ;csi_iovdd: camera module io power , pmu power supply ;csi_avdd: camera module analog power , pmu power supply ;csi_dvdd: camera module core power , pmu power supply ;pmu_ldo3: fill "axp20_pll" ;pmu_ldo4: fill "axp20_hdmi" ;fill "" when not using any pmu power supply ;csi_flash_pol: the active polority of the flash light IO 0:low active 1:high active ;-------------------------------------------------------------------------------- [csi0_para] csi_used = 1 csi_mode = 0 csi_dev_qty = 1 csi_stby_mode = 1 ;csi_mname = "gc0308" ;csi_mname = "ov2640" csi_mname = "ov7670" csi_twi_id = 2 ;csi_twi_addr = 0x30 ;csi_twi_addr = 0x60 csi_twi_addr = 0x42 csi_if = 0 csi_vflip = 0 csi_hflip = 1 csi_iovdd = "" csi_avdd = "" csi_dvdd = "" csi_flash_pol = 1 ;csi_mname_b = "" ;csi_twi_id_b = 1 ;csi_twi_addr_b = 0x78 ;csi_if_b = 0 ;csi_vflip_b = 1 ;csi_hflip_b = 0 ;csi_iovdd_b = "" ;csi_avdd_b = "" ;csi_dvdd_b = "" ;csi_flash_pol_b = 1 csi_pck = port:PE00<3><default><default><default> csi_ck = port:PE01<3><default><default><default> csi_hsync = port:PE02<3><default><default><default> csi_vsync = port:PE03<3><default><default><default> csi_d0 = port:PE04<3><default><default><default> csi_d1 = port:PE05<3><default><default><default> csi_d2 = port:PE06<3><default><default><default> csi_d3 = port:PE07<3><default><default><default> csi_d4 = port:PE08<3><default><default><default> csi_d5 = port:PE09<3><default><default><default> csi_d6 = port:PE10<3><default><default><default> csi_d7 = port:PE11<3><default><default><default> csi_reset = port:power3<1><default><default><0> csi_power_en = csi_stby = port:PB10<1><default><default><1> csi_flash = csi_af_en =