全志R16的android4.4.2平台點亮gc2145(evb30)

1、配置ov2640在android層配置的分辨率為vga(預覽/拍照/錄像)

注意：系統自帶的快拍APP就在這里查找分辨率參數發送到camera的HAL層。

這里得分辨率設置為：拍照1600x1200，預覽640x480

驅動里面搜索可以設置為：1600x1200, 1280x720(花屏), 800x600(分辨率不能切換到這里), 640x480

提取分辨率的小知識：

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[] = {

(默認分辨率是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

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

; 用於camera的配置

;

; 采用格式:

; key = key_value

; 注意: 每個key需要頂格寫;

; key_value緊跟着key后面的等號后面, 位於同一行中;

; key_value限制大小為256字節以內;

;

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

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

; 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)中加載gc2145.ko這個驅動模塊。

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

啟動之后實際加載的攝像頭的驅動模塊：

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、(可選操作)沒有/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、驅動程序：gc2145.c及其V4L2的適配層。

配置gc2145.c的編譯選項，只需要修改device目錄中的Makefile打開gc2145即可：

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

(請嚴重注意，全志R16的parrotv1.1/android4.4.2的SDK里面是沒有，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

(這兩個不用修改：)

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

(請參照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>

vip_csi_mck              = port:PE01<2>

vip_csi_hsync            = port:PE02<2>

vip_csi_vsync            = port:PE03<2>

vip_csi_d0               = port:PE04<2>

vip_csi_d1               = port:PE05<2>

vip_csi_d2               = port:PE06<2>

vip_csi_d3               = port:PE07<2>

vip_csi_d4               = port:PE08<2>

vip_csi_d5               = port:PE09<2>

vip_csi_d6               = port:PE10<2>

vip_csi_d7               = port:PE11<2>

vip_csi_sck              = port:PE12<2>

vip_csi_sda              = port:PE13<2>

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><0>

vip_dev0_pwdn            = port:PE15<1><1>

vip_dev0_flash_en        =

vip_dev0_flash_mode      =

vip_dev0_af_pwdn         =

(可選配置：)

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

;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、開發板上攝像頭的I2C掛載在TWI2上面了，邏輯是需要打開的(但是不打開也能夠用，很奇怪！)：

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

;i2c configuration

; twi_used = twix enable

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

[twi0]

twi_used        = 1

twi_scl         = port:PH02<2>

twi_sda         = port:PH03<2>

[twi1]

twi_used        = 1

twi_scl         = port:PH04<2>

twi_sda         = port:PH05<2>

[twi2]

twi_used        = 0

twi_scl         = port:PE12<3>

twi_sda         = port:PE13<3>

直接配置攝像頭的I2C了：

vip_csi_sck              = port:PE12<2>

vip_csi_sda              = port:PE13<2>

不過奇怪的是，攝像頭並沒有向其它平台那樣生成設備節點：

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 $

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的驅動程序不太規范吧！沒有通過i2c_detect來注冊2-003C這個節點。

直接在驅動程序中讀取I2C，還是對的。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下已經驗證的分辨率有640x480，1600x1200，1280x720(花屏)，800x600沒有驗證。

640x480正常

1280x720花屏

1600x1200正常