全志R16的android4.4.2平台点亮gc2145（evb30）版本：V1.1（分色排版）

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全志R16的android4.4.2平台点亮gc2145（evb30）

1、配置ov2640在android层配置的分辨率为vga（预览/拍照/录像）

注意：系统自带的快拍APP就在这里查找分辨率参数发送到camera的HAL层。

这里得分辨率设置为：拍照1600x1200，预览640x480

驱动里面搜索可以设置为：1600x1200, 1280x720（花屏）, 800x600（分辨率不能切换到这里）, 640x480

提取分辨率的小知识：

R:\wyb\gc2145_parrotv1.1_r16m\lichee\linux-3.4\drivers\media\video\sunxi-vfe\device\gc2145.c

搜索：_regs[]

static struct regval_list sensor_default_regs[] = {

（默认分辨率是VGA分辨率：640x480）

/* 1600X1200 UXGA capture */

static struct regval_list sensor_uxga_regs[] ={

/* 800X600 SVGA,30fps*/

static struct regval_list sensor_svga_regs[] =

//1280*720---init---///

static struct regval_list gc2145_hd720_regs[] = {

R:\wyb\gc2145_parrotv1.1_r16m\android\device\softwinner\astar-evb30\configs\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;

;

;-------------------------------------------------------------------------------

; exif information of "make" and "model"

;-------------------------------------------------------------------------------

key_camera_exif_make = MAKE_A31S

key_camera_exif_model = MODEL_A31ST

;-------------------------------------------------------------------------------

; 1 for single camera, 2 for double camera

;-------------------------------------------------------------------------------

number_of_camera = 1

;-------------------------------------------------------------------------------

; CAMERA_FACING_BACK

; gc0307 gc2145

;-------------------------------------------------------------------------------

camera_id = 0

;-------------------------------------------------------------------------------

; 1 for CAMERA_FACING_FRONT

; 0 for CAMERA_FACING_BACK

;-------------------------------------------------------------------------------

camera_facing = 0

;-------------------------------------------------------------------------------

; 1 for camera without isp(using built-in isp of Axx)

; 0 for camera with isp

;-------------------------------------------------------------------------------

use_builtin_isp = 0

;-------------------------------------------------------------------------------

; camera orientation (0, 90, 180, 270)

;-------------------------------------------------------------------------------

camera_orientation = 90

;-------------------------------------------------------------------------------

; 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 = 1600x1200, 1280x720, 800x600, 640x480

key_support_picture_size = 1600x1200, 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=0

key_support_color_effect = none,mono,negative,sepia,aqua

key_default_color_effect = none

used_frame_rate = 1

key_support_frame_rate = 10

key_default_frame_rate = 10

used_focus_mode = 0

key_support_focus_mode = auto,infinity,macro,fixed,continuous-video,continuous-picture

key_default_focus_mode = auto

used_scene_mode = 0

key_support_scene_mode = auto,portrait,landscape,night,night-portrait,theatre,beach,snow,sunset,steadyphoto,fireworks,sports,party,candlelight,barcode

key_default_scene_mode = auto

used_white_balance = 0

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

2、在init.rc（init.sun8i.rc）中加载gc2145.ko这个驱动模块。

R:\wyb\gc2145_parrotv1.1_r16m\android\device\softwinner\astar-evb30\init.sun8i.rc

#csi module

insmod /system/vendor/modules/videobuf-core.ko

insmod /system/vendor/modules/videobuf-dma-contig.ko

insmod /system/vendor/modules/cam_detect.ko

#insmod /system/vendor/modules/actuator.ko

#insmod /system/vendor/modules/ad5820_act.ko

insmod /system/vendor/modules/cci.ko

insmod /system/vendor/modules/vfe_os.ko

insmod /system/vendor/modules/vfe_subdev.ko

#insmod /system/vendor/modules/gc0307.ko

#insmod /system/vendor/modules/gc0308.ko

#insmod /system/vendor/modules/ov2035.ko

#insmod /system/vendor/modules/ov2640.ko

#insmod /system/vendor/modules/ov5640.ko

insmod /system/vendor/modules/gc2145.ko

insmod /system/vendor/modules/vfe_v4l2.ko

启动之后实际加载的摄像头的驱动模块：

shell@astar-evb30:/ $

shell@astar-evb30:/ $ lsmod

gt82x 9849 0 - Live 0x00000000

sunxi_schw 12559 0 - Live 0x00000000 (O)

rtl8150 9023 0 - Live 0x00000000

sunxi_keyboard 3021 0 - Live 0x00000000

sw_device 13916 0 - Live 0x00000000

uvcvideo 61212 0 - Live 0x00000000

videobuf2_vmalloc 2600 1 uvcvideo, Live 0x00000000

videobuf2_memops 2366 1 videobuf2_vmalloc, Live 0x00000000

videobuf2_core 18902 1 uvcvideo, Live 0x00000000

vfe_v4l2 445492 1 - Live 0x00000000

gc2145 12782 0 - Live 0x00000000

vfe_subdev 4523 2 vfe_v4l2,gc2145, Live 0x00000000

vfe_os 3951 2 vfe_v4l2,vfe_subdev, Live 0x00000000

cci 21775 2 vfe_v4l2,gc2145, Live 0x00000000

videobuf_dma_contig 5567 1 vfe_v4l2, Live 0x00000000

videobuf_core 16520 2 vfe_v4l2,videobuf_dma_contig, Live 0x00000000

bcm_btlpm 7442 0 - Live 0x00000000

bcmdhd 629907 0 - Live 0x00000000

mali 210546 20 - Live 0x00000000 (O)

lcd 41263 0 - Live 0x00000000

disp 992816 8 mali,lcd, Live 0x00000000

nand 282782 0 - Live 0x00000000 (O)

shell@astar-evb30:/ $

3、（可选操作）没有/dev/video1，只有/dev/video0

R:\wyb\gc2145_parrotv1.1_r16m\android\device\softwinner\astar-evb30\ueventd.sun8i.rc

/dev/video0 0666 media media

#/dev/video1 0666 media media

4、驱动程序：gc2145.c及其V4L2的适配层。

配置gc2145.c的编译选项，只需要修改device目录中的Makefile打开gc2145即可：

R:\wyb\gc2145_parrotv1.1_r16m\lichee\linux-3.4\drivers\media\video\sunxi-vfe\device\gc2145.c

（请严重注意，全志R16的parrotv1.1/android4.4.2的SDK里面是没有，只有android6.0下有）

R:\wyb\gc2145_parrotv1.1_r16m\lichee\linux-3.4\drivers\media\video\sunxi-vfe\device\Makefile

obj-m+= gc2145.o

obj-m+= gc2155.o

（这两个不用修改：）

R:\wyb\test_ov2640_r16\lichee\linux-3.4\drivers\media\video\sunxi-vfe\Kconfig

R:\wyb\test_ov2640_r16\lichee\linux-3.4\drivers\media\video\sunxi-vfe\Makefile

R:\wyb\gc2145_parrotv1.1_r16m\lichee\linux-3.4\drivers\media\video\sunxi-vfe\sensor_info.c

struct sensor_item sensor_list_t[] =

{

// name i2c_addr sensor type sensor size sensor max pclk

（请参照OV2640/GC2155配置）

{"gc2145",0x78,SENSOR_YUV, PIXEL_NUM_2M, CORE_CLK_RATE_FOR_2M},

{ "ov2640" , 0x60, SENSOR_YUV , PIXEL_NUM_2M , CORE_CLK_RATE_FOR_2M},

……

};

5、

R:\wyb\gc2145_parrotv1.1_r16m\lichee\tools\pack\chips\sun8iw5p1\configs\evb-30\sys_config.fex

[power_sply]

dcdc1_vol = 3000

dcdc2_vol = 1100

dcdc3_vol = 1200

dcdc4_vol = 0

dcdc5_vol = 1500

aldo2_vol = 2500

aldo3_vol = 3000

dldo3_vol = 3300

eldo1_vol = 2800

eldo2_vol = 1800

eldo3_vol = 1800

;gldo1_vol = 3300

ldoio0_vol = 2800

ldoio1_vol = 3300

;--------------------------------------------------------------------------------

;vip (video input port) configuration

;vip_used: 0:disable 1:enable

;vip_mode: 0:sample one interface to one buffer 1:sample two interface to one buffer

;vip_dev_qty: The quantity of devices linked to capture bus

;

;vip_define_sensor_list: If you want use sensor detect function, please set vip_define_sensor_list = 1, and

; verify that file /system/etc/hawkview/sensor_list_cfg.ini is properly configured!

;

;vip_dev(x)_pos: sensor position, "rear" or "front", if vip_define_sensor_list = 1,vip_dev(x)_pos must be configured!

;

;vip_dev(x)_isp_used 0:not use isp 1:use isp

;vip_dev(x)_fmt: 0:yuv 1:bayer raw rgb

;vip_dev(x)_stby_mode: 0:not shut down power at standby 1:shut down power at standby

;vip_dev(x)_vflip: flip in vertical direction 0:disable 1:enable

;vip_dev(x)_hflip: flip in horizontal direction 0:disable 1:enable

;vip_dev(x)_iovdd: camera module io power handle string, pmu power supply

;vip_dev(x)_iovdd_vol: camera module io power voltage, pmu power supply

;vip_dev(x)_avdd: camera module analog power handle string, pmu power supply

;vip_dev(x)_avdd_vol: camera module analog power voltage, pmu power supply

;vip_dev(x)_dvdd: camera module core power handle string, pmu power supply

;vip_dev(x)_dvdd_vol: camera module core power voltage, pmu power supply

;vip_dev(x)_afvdd: camera module vcm power handle string, pmu power supply

;vip_dev(x)_afvdd_vol: camera module vcm power voltage, pmu power supply

;x indicates the index of the devices which are linked to the same capture bus

;fill voltage in uV, e.g. iovdd = 2.8V, vip_devx_iovdd_vol = 2800000

;fill handle string as below:

;axp22_eldo3

;axp22_dldo4

;axp22_eldo2

;fill handle string "" when not using any pmu power supply

;--------------------------------------------------------------------------------

[csi0]

vip_used = 1

vip_mode = 0

vip_dev_qty = 1

vip_define_sensor_list = 0

vip_csi_pck = port:PE00<2><default><default><default>

vip_csi_mck = port:PE01<2><default><default><default>

vip_csi_hsync = port:PE02<2><default><default><default>

vip_csi_vsync = port:PE03<2><default><default><default>

vip_csi_d0 = port:PE04<2><default><default><default>

vip_csi_d1 = port:PE05<2><default><default><default>

vip_csi_d2 = port:PE06<2><default><default><default>

vip_csi_d3 = port:PE07<2><default><default><default>

vip_csi_d4 = port:PE08<2><default><default><default>

vip_csi_d5 = port:PE09<2><default><default><default>

vip_csi_d6 = port:PE10<2><default><default><default>

vip_csi_d7 = port:PE11<2><default><default><default>

vip_csi_sck = port:PE12<2><default><default><default>

vip_csi_sda = port:PE13<2><default><default><default>

vip_dev0_mname = "gc2145"

vip_dev0_pos = "rear"

vip_dev0_lane = 1

vip_dev0_twi_id = 2

vip_dev0_twi_addr = 0x78

vip_dev0_isp_used = 0

vip_dev0_fmt = 0

vip_dev0_stby_mode = 0

vip_dev0_vflip = 0

vip_dev0_hflip = 0

vip_dev0_iovdd = ""

vip_dev0_iovdd_vol = 2800000

vip_dev0_avdd = "axp22_ldoio0"

vip_dev0_avdd_vol = 2800000

vip_dev0_dvdd = "axp22_ldoio1"

vip_dev0_dvdd_vol = 1800000

vip_dev0_afvdd = ""

vip_dev0_afvdd_vol = 2800000

vip_dev0_power_en =

vip_dev0_reset = port:PE14<1><default><default><0>

vip_dev0_pwdn = port:PE15<1><default><default><1>

vip_dev0_flash_en =

vip_dev0_flash_mode =

vip_dev0_af_pwdn =

（可选配置：）

;----------------------------------------------------------------------------------

;usb configuration

;usb_used: usb controller enable, 0-disable, 1-enable

;usb_port_type: usb mode: 0-device, 1-host, 2-otg

;usb_detect_type: usb hotplug detect mode, 0-none, 1-vbus/id detect, 2-id/dpdm detect

;usb_id_gpio: usb id detect IO

;usb_det_vbus_gpio: usb vbus detect IO, "axp_ctrl" for axp

;usb_drv_vbus_gpio: usb dirve vbus IO

;usb_restrict_gpio: usb current restrict IO

;usb_restric_flag: usb current restrict flag

;----------------------------------------------------------------------------------

[usbc0]

usb_used = 1

usb_port_type = 0

power_start = 3

6、开发板上摄像头的I2C挂载在TWI2上面了，逻辑是需要打开的（但是不打开也能够用，很奇怪！）：

;----------------------------------------------------------------------------------

;i2c configuration

; twi_used = twix enable

;----------------------------------------------------------------------------------

[twi0]

twi_used = 1

twi_scl = port:PH02<2><default><default><default>

twi_sda = port:PH03<2><default><default><default>

[twi1]

twi_used = 1

twi_scl = port:PH04<2><default><default><default>

twi_sda = port:PH05<2><default><default><default>

[twi2]

twi_used = 0

twi_scl = port:PE12<3><default><default><default>

twi_sda = port:PE13<3><default><default><default>

直接配置摄像头的I2C了：

vip_csi_sck = port:PE12<2><default><default><default>

vip_csi_sda = port:PE13<2><default><default><default>

不过奇怪的是，摄像头并没有向其它平台那样生成设备节点：

shell@astar-evb30:/ $

shell@astar-evb30:/ $ cd /sys/class/i2c-adapter

shell@astar-evb30:/sys/class/i2c-adapter $

shell@astar-evb30:/sys/class/i2c-adapter $ ll

lrwxrwxrwx root root 1970-01-01 08:00 i2c-0 -> ../../devices/platform/twi.0/i2c-0

lrwxrwxrwx root root 1970-01-01 08:00 i2c-1 -> ../../devices/platform/twi.1/i2c-1

shell@astar-evb30:/sys/class/i2c-adapter $

可能是全志R16的驱动程序不太规范吧！没有通过i2c_detect来注册2-003C这个节点。

直接在驱动程序中读取I2C，还是对的。0xF0/0xF1 device ID = 0x2145。

#define V4L2_IDENT_SENSOR 0x2145

* The gc2145 sits on i2c with ID 0x78

#define I2C_ADDR 0x78

#define SENSOR_NAME "gc2145"

android4.4.2下已经验证的分辨率有640x480，1600x1200，1280x720（花屏），800x600没有验证。

640x480正常

1280x720花屏

1600x1200正常

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