在全志r40平台tinav2.1系统下调通ov5640（分色排版）
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在全志r40平台tinav2.1系统下调通ov5640
2017/11/14 15:14
版本：V1.0
开发板：CB-S
1、（可选修改/调试技巧：）
除了ov5640.c之外，其它的驱动都不编译，节省编译时间！
W:\ov5640_spi20_r40t\lichee\linux-3.10\drivers\media\platform\sunxi-vfe\device\Makefile
obj-m+= ov5640.o
#obj-m+= ov2640.o
#obj-m+= ov7736.o
#obj-m+= s5k4ec.o
#obj-m+= s5k4ec_mipi.o
#obj-m+= gc2035.o
#obj-m+= gt2005.o
#obj-m+= gc0307.o
#obj-m+= gc0308.o
#obj-m+= gc0328.o
#obj-m+= gc0328c.o
#obj-m+= gc2145.o
#obj-m+= gc0329.o
#obj-m+= gc0311.o
#obj-m+= hi253.o
#obj-m+= sp2518.o
#obj-m+= sp2519.o
#obj-m+= sp0718.o
#obj-m+= sp0838.o
#obj-m+= ov16825.o
#obj-m+= ov5650.o
#obj-m+= ov5647.o
#obj-m+= ov5647_mipi.o
#obj-m+= t8et5.o
#obj-m+= s5k4e1.o
#obj-m+= s5k4e1_mipi.o
#obj-m+= sp2518.o
#obj-m+= sp0718.o
#obj-m+= gc5004.o
#obj-m+= gc5004_mipi.o
#obj-m+= ov5648.o
#obj-m+= ar0330.o
#obj-m+= ov5648.o
#obj-m+= sp5408.o
#obj-m+= ov12830.o
#obj-m+= ov8825.o
#obj-m+= ov8850.o
#obj-m+= gc2155.o
#obj-m+= ov8858.o
#obj-m+= ov13850.o
#obj-m+= imx214.o
#obj-m+= ov8858_4lane.o
#obj-m+= sp5409.o
#obj-m+= s5k5e2yx.o
#obj-m+= ov2710_mipi.o
#obj-m+= ov2686.o
（这里是看ov5640的驱动的probe执行是否正确？设备ID是否读取成功！）
W:\ov5640_spi20_r40t\lichee\linux-3.10\drivers\media\platform\sunxi-vfe\device\ov5640.c
static int sensor_detect(struct v4l2_subdev *sd)
{
data_type rdval;
printk("****wyb %s:%d/%s()! \n", __FILE__, __LINE__, __func__);
LOG_ERR_RET(sensor_read(sd, 0x300a, &rdval))
printk("****wyb %s:%d/%s()! 0x300a rdval=0x%02x\n", __FILE__, __LINE__, __func__, rdval);
if(rdval != 0x56)
return -ENODEV;
LOG_ERR_RET(sensor_read(sd, 0x300b, &rdval))
printk("****wyb %s:%d/%s()! 0x300b rdval=0x%02x\n", __FILE__, __LINE__, __func__, rdval);
if(rdval != 0x40)
return -ENODEV;
return 0;
}
（在全志R16平台改过这个文件，让摄像头不要休眠，但是全志R40平台的tina v2.1系统下不需要修改！）
W:\ov5640_spi20_r40t\lichee\linux-3.10\drivers\media\platform\sunxi-vfe\vfe.c
2、（可选修改/根据和全志R16平台的tina v1.0的系统下的SDK对照发现的问题。全志R16的最新的tina v2.1大幅度修改cameratest的源代码了！）
W:\ov5640_spi20_r40t\package\allwinner\cameratest\src\common\hawkview.c
int fetch_sub_cmd(const char* buf,int buf_len,char** cmd,int* cmd_num,int lenght)
{
int i = 0,j = 0,n = 0;
while(buf[i] != '#'){ //the sub cmd end by '#'
while(buf[i] != 'x' && buf[i] != ':' && buf[i] != '#') {
if(i++ > buf_len) return 0;
*((char*)cmd + n*lenght + j++) = buf[i];
if(j > lenght) {
hv_err("sub cmd over long\n");
*cmd_num = n + 1;
return -1;
}
}
*((char*)cmd + n*lenght + j++) = '\0';
n++;
j = 0;
if(buf[i] != '#'){
i++;
}
if(n > *cmd_num){
hv_err("the max cmd num is %d\n",*cmd_num);
return -1;
}
}
*cmd_num = n;
return 0;
}
修改为：
int fetch_sub_cmd(const char* buf,int buf_len,char** cmd,int* cmd_num,int lenght)
{
int i = 0,j = 0,n = 0;
while(buf[i] != '#'){ //the sub cmd end by '#'
while(buf[i] != 'x' && buf[i] != ':' && buf[i] != '#') {
if((i+1) > buf_len) return 0;
*((char*)cmd + n*lenght + j++) = buf[i++];
if(j > lenght) {
hv_err("sub cmd over long\n");
*cmd_num = n + 1;
return -1;
}
}
*((char*)cmd + n*lenght + j++) = '\0';
n++;
j = 0;
if(buf[i] != '#'){
i++;
}
if(n > *cmd_num){
hv_err("the max cmd num is %d\n",*cmd_num);
return -1;
}
}
*cmd_num = n;
return 0;
}
W:\ov5640_spi20_r40t\package\allwinner\cameratest\src\common\video.c
static int capture_frame(void* capture,int (*set_disp_addr)(int,int,unsigned int*),pthread_mutex_t* mutex)
{
capture_handle* cap = (capture_handle*)capture;
int ret;
int i;
struct v4l2_buffer buf;
enum v4l2_buf_type type;
fd_set fds;
struct timeval tv;
pthread_mutex_lock(mutex);
//used for cammand and status debug
if (old_vi_cmd != cap->cmd){
hv_dbg("capture frame command %d --> %d\n",old_vi_cmd,cap->cmd);
old_vi_cmd = (int)cap->cmd;
}
if(old_status != cap->status){
hv_dbg("capture frame status %d --> %d\n",old_status,cap->status);
old_status = cap->status;
}
if(cap->status == OFF && cap->cmd == START_STREAMMING){
hv_dbg("capture start streaming\n");
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (ioctl(videofh, VIDIOC_STREAMON, &type) == -1) {
hv_err("VIDIOC_STREAMON error! %s\n",strerror(errno));
goto quit;
}
cap->status = ON;
cap->cmd = COMMAND_UNUSED;
pthread_mutex_unlock(mutex);
return 0;
}
if(cap->status == ON && cap->cmd == STOP_STREAMMING){
hv_dbg("capture stop streaming\n");
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if(-1 == ioctl(videofh, VIDIOC_STREAMOFF, &type)){
hv_err("VIDIOC_STREAMOFF error! %s\n",strerror(errno));
goto quit;
}
cap->status = OFF;
cap->cmd = COMMAND_UNUSED;
capture_quit(capture);
pthread_mutex_unlock(mutex);
return 2;
}
if(cap->status == OFF) {
pthread_mutex_unlock(mutex);
return 0;
}
FD_ZERO(&fds);
FD_SET(videofh, &fds);
tv.tv_sec = 2;
tv.tv_usec = 0;
pthread_mutex_unlock(mutex);
ret = select(videofh + 1, &fds, NULL, NULL, &tv);
pthread_mutex_lock(mutex);
//hv_dbg("select video ret: %d\n",ret);
if (ret == -1) {
if (errno == EINTR) {
return 0;
}
hv_err("select error\n");
goto stream_off;
}
else if (ret == 0) {
hv_err("select timeout\n");
pthread_mutex_unlock(mutex);
return 0;
}
memset(&buf, 0, sizeof(struct v4l2_buffer));
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
ret = ioctl(videofh, VIDIOC_DQBUF, &buf);
if (ret == -1) {
hv_err("VIDIOC_DQBUF failed!\n");
goto stream_off;
}
float framerate;
framerate = get_framerate((long long)(buf.timestamp.tv_sec),(long long)(buf.timestamp.tv_usec));
if(framerate > 1.0){
cap->cap_fps = framerate;
//hv_dbg("framerate: %0.2ffps\n",cap->cap_fps);
}
//sync capture info perp x second
#define M_SECOND 200
if(is_x_msec(M_SECOND,(long long)(buf.timestamp.tv_sec),(long long)(buf.timestamp.tv_usec))){
getExifInfo(&(cap->frame.exif));
// set_cap_info((void*)cap);
}
if(cap->cmd == STOP_SAVE_FRAME && cap->save_status == ON)
cap->save_status = OFF;
//save frame , the frame will be get by PC Tool to preview on PC screen
//frame format: /dev/frame_x (x:0~21)
if(cap->cmd == SAVE_FRAME || cap->save_status == ON ) {
if(cap->cmd == SAVE_FRAME){
cap->save_status = ON;
cap->cmd = COMMAND_UNUSED;
}
ret = do_save_frame(capture,buf.index);
}
//take yuv image,it will save the target frame exif info in the same time
//image name: xxxx (set by usered through command)
//exif info name: xxxx.exif
if(cap->cmd == SAVE_IMAGE ) {
ret = 0;//getExifInfo(&(cap->picture.exif));
//get target frame exif info successfully then save the target image
//if get the exif info fail,it will try next frame
if(ret == 0){
buffers[buf.index].phy_addr = buf.m.offset - 0x20000000;
hv_dbg("index: %d buffers[buf.index].start = %p\n",buf.index,buffers[buf.index].start);
//do_save_image(capture,buf.index);
do_save_sub_image(capture,buf.index);
cap->cmd = COMMAND_UNUSED;
}
}
//get display addr
int w,h;
unsigned int addr;
get_disp_addr(capture, buf.m.offset,&addr,&w,&h);
// set disp buffer
if (set_disp_addr){
set_disp_addr(w,h,&addr);
}
ret = ioctl(videofh, VIDIOC_QBUF, &buf);
if (ret == -1) {
hv_err("VIDIOC_DQBUF failed!\n");
goto stream_off;
}
pthread_mutex_unlock(mutex);
return 0;
stream_off:
hv_err("err stream off\n");
ioctl(videofh, VIDIOC_STREAMOFF, &type);
quit:
capture_quit(capture);
pthread_mutex_unlock(mutex);
return -1;
}
W:\ov5640_spi20_r40t\package\allwinner\cameratest\src\common\video_helper.c
int set_cap_info(void* capture)
{
char info[500];
char exif[500];
char file_path[20];
capture_handle* cap = (capture_handle*)capture;
memset(info,0,sizeof(info));
//strcpy(file_path, "dev/info");
sprintf(file_path, "%s/%s.info", PATH, cap->picture.path_name);
//sync string: sensor_type:save_status:framrate:capture_w:capture_h,sub_w,sub_h#
sprintf(info, \
"sensor_type = %s\n" \
"status = %d\n" \
"framerate = %0.2f\n" \
"subchanel_width = %d\n" \
"subchanel_height = %d\n" \
"rotation = %d\n\n", \
(cap->sensor_type == 1)?"raw":"yuv", \
cap->save_status, \
cap->cap_fps, \
cap->sub_w, \
cap->sub_h, \
cap->sub_rot);
make_exif_info(exif,"none",&(cap->frame.exif),cap->cap_w,cap->cap_h);
strcat(info,exif);
//hv_dbg("info str:\n%s\n",info);
return write_file(file_path,info,sizeof(info));
}
int do_save_sub_image(void* capture,int buf_index)
{
int ret;
char image_name[30];
capture_handle* cap = (capture_handle*)capture;
memset(image_name,0,sizeof(image_name));
sprintf(image_name,"%s/%s", PATH,cap->picture.path_name);
hv_dbg("image_name: %s\n",image_name);
set_cap_info(capture);
set_exif_info(capture);
hv_dbg("--------set_exif_info end\n");
void* vir_sub_start = NULL;
unsigned int phy_sub_start = 0;
int w,h;
if(cap->sensor_type == V4L2_SENSOR_TYPE_RAW){
vir_sub_start = (unsigned int)(buffers[buf_index].start) + ALIGN_4K(ALIGN_16B(cap->cap_w) * cap->cap_h * 3 >> 1);
phy_sub_start = buffers[buf_index].phy_addr + ALIGN_4K(ALIGN_16B(cap->cap_w) * cap->cap_h * 3 >> 1);
w = cap->sub_w;
h = cap->sub_h;
}
else {
vir_sub_start = buffers[buf_index].start;
phy_sub_start = buffers[buf_index].phy_addr;
w = cap->cap_w;
h = cap->cap_h;
}
#ifdef ANDROID_ENV
ret = save_jpeg_frame(image_name,phy_sub_start,w,h);
//sprintf(image_name,"/data/camera/yuv%s", cap->picture.path_name);
//ret = save_jpeg_frame_by_viraddr(image_name,(void*)vir_sub_start,cap->sub_w,cap->sub_h);
#else
sprintf(image_name,"%s/yuv%s", PATH,cap->picture.path_name);
ret = save_frame_to_file(image_name, \
(void*)(vir_sub_start), \
w,h,cap->cap_fmt, \
1);
#endif
if(ret == -1)
hv_err("save image failed!\n");
return 0;
}
3、修改ov5640的供电（强制供电），但是这样（简单粗暴的）修改肯定会影响其它模块（以太网卡找不到了^_）！
W:\ov5640_spi20_r40t\target\allwinner\azalea-m2ultra\configs\sys_config.fex
;----------------------------------------------------------------------------------
;
; 各路电压输出语法说明：
;
; 电压名称 = 100XXXX : 表示把该路电压设置为XXXX指定的电压值，同时打开输出开关
; 电压名称 = 000XXXX : 表示把该路电压设置为XXXX指定的电压值，同时关闭输出开关，当有需要时由内核驱动打开
; 电压名称 = 0 : 表示关闭该路电压输出开关，不修改原有的值
;
;----------------------------------------------------------------------------------
[power_sply]
dcdc1_vol = 1003300
dcdc2_vol = 1001160
dcdc3_vol = 1001100
dcdc4_vol = 1100
aldo1_vol = 2800
aldo2_vol = 2500
aldo3_vol = 1003000
dc1sw_vol = 3300
dc5ldo_vol = 1100
dldo1_vol = 3300
dldo2_vol = 3300
dldo3_vol = 3300
dldo4_vol = 2500
;eldo1_vol = 2800
eldo1_vol = 1002800
;eldo2_vol = 1500
eldo2_vol = 1001500
;eldo3_vol = 1200
eldo3_vol = 1002800
gpio0_vol = 3300
gpio1_vol = 1800
[twi4]
twi4_used = 1
twi4_scl = port:PI02<3><default><default><default>
twi4_sda = port:PI03<3><default><default><default>
;--------------------------------------------------------------------------------
;csi (COMS Sensor Interface) configuration
;csi(x)_dev(x)_used: 0:disable 1:enable
;csi(x)_dev(x)_isp_used 0:not use isp 1:use isp
;csi(x)_dev(x)_fmt: 0:yuv 1:bayer raw rgb
;csi(x)_dev(x)_stby_mode: 0:not shut down power at standby 1:shut down power at standby
;csi(x)_dev(x)_vflip: flip in vertical direction 0:disable 1:enable
;csi(x)_dev(x)_hflip: flip in horizontal direction 0:disable 1:enable
;csi(x)_dev(x)_iovdd: camera module io power handle string, pmu power supply
;csi(x)_dev(x)_iovdd_vol: camera module io power voltage, pmu power supply
;csi(x)_dev(x)_avdd: camera module analog power handle string, pmu power supply
;csi(x)_dev(x)_avdd_vol: camera module analog power voltage, pmu power supply
;csi(x)_dev(x)_dvdd: camera module core power handle string, pmu power supply
;csi(x)_dev(x)_dvdd_vol: camera module core power voltage, pmu power supply
;csi(x)_dev(x)_afvdd: camera module vcm power handle string, pmu power supply
;csi(x)_dev(x)_afvdd_vol: camera module vcm power voltage, pmu power supply
;fill voltage in uV, e.g. iovdd = 2.8V, csix_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]
csi0_used= 1
csi0_sensor_list = 0
csi0_pck = port:PE00<3><default><default><default>
csi0_mck = port:PE01<1><0><1><0>
csi0_hsync = port:PE02<3><default><default><default>
csi0_vsync = port:PE03<3><default><default><default>
csi0_d0 = port:PE04<3><default><default><default>
csi0_d1 = port:PE05<3><default><default><default>
csi0_d2 = port:PE06<3><default><default><default>
csi0_d3 = port:PE07<3><default><default><default>
csi0_d4 = port:PE08<3><default><default><default>
csi0_d5 = port:PE09<3><default><default><default>
csi0_d6 = port:PE10<3><default><default><default>
csi0_d7 = port:PE11<3><default><default><default>
[csi0/csi0_dev0]
csi0_dev0_used= 1
csi0_dev0_mname = "ov5640"
csi0_dev0_twi_addr = 0x78
csi0_dev0_twi_id = 4
csi0_dev0_pos = "rear"
csi0_dev0_isp_used = 0
csi0_dev0_fmt = 0
csi0_dev0_stby_mode = 0
csi0_dev0_vflip = 0
csi0_dev0_hflip = 0
;csi0_dev0_iovdd = "csi-iovcc"
csi0_dev0_iovdd = ""
csi0_dev0_iovdd_vol = 2800000
;csi0_dev0_avdd = "csi-avdd"
csi0_dev0_avdd = ""
csi0_dev0_avdd_vol = 2800000
;csi0_dev0_dvdd = "csi-dvdd"
csi0_dev0_dvdd = ""
csi0_dev0_dvdd_vol = 1500000
;csi0_dev0_afvdd = "csi-afvcc"
csi0_dev0_afvdd = ""
csi0_dev0_afvdd_vol = 2800000
csi0_dev0_power_en =
csi0_dev0_reset = port:PI07<1><0><1><0>
csi0_dev0_pwdn = port:PI06<1><0><1><0>
csi0_dev0_flash_used = 0
csi0_dev0_flash_type = 2
csi0_dev0_flash_en =
csi0_dev0_flash_mode =
csi0_dev0_flvdd = ""
csi0_dev0_flvdd_vol =
csi0_dev0_af_pwdn =
csi0_dev0_act_used = 0
csi0_dev0_act_name = "ad5820_act"
csi0_dev0_act_slave = 0x18
[csi1]
csi1_used= 0
csi1_sensor_list = 0
csi1_pck = port:PG00<3><default><default><default>
csi1_mck = port:PG01<1><0><1><0>
csi1_hsync = port:PG02<3><default><default><default>
csi1_vsync = port:PG03<3><default><default><default>
csi1_d0 = port:PG04<3><default><default><default>
csi1_d1 = port:PG05<3><default><default><default>
csi1_d2 = port:PG06<3><default><default><default>
csi1_d3 = port:PG07<3><default><default><default>
csi1_d4 = port:PG08<3><default><default><default>
csi1_d5 = port:PG09<3><default><default><default>
csi1_d6 = port:PG10<3><default><default><default>
csi1_d7 = port:PG11<3><default><default><default>
[csi1/csi1_dev0]
csi1_dev0_used= 0
csi1_dev0_mname = "ov5640"
csi1_dev0_twi_addr = 0x78
csi1_dev0_twi_id = 1
csi1_dev0_pos = "rear"
csi1_dev0_isp_used = 0
csi1_dev0_fmt = 0
csi1_dev0_stby_mode = 0
csi1_dev0_vflip = 0
csi1_dev0_hflip = 0
csi1_dev0_iovdd = ""
csi1_dev0_iovdd_vol = 2800000
csi1_dev0_avdd = ""
csi1_dev0_avdd_vol = 2800000
csi1_dev0_dvdd = ""
csi1_dev0_dvdd_vol = 1500000
csi1_dev0_afvdd = ""
csi1_dev0_afvdd_vol = 2800000
csi1_dev0_power_en =
csi1_dev0_reset = port:PH14<1><0><1><0>
csi1_dev0_pwdn = port:PH17<1><0><1><0>
csi1_dev0_flash_used = 0
csi1_dev0_flash_type = 2
csi1_dev0_flash_en =
csi1_dev0_flash_mode =
csi1_dev0_flvdd = ""
csi1_dev0_flvdd_vol =
csi1_dev0_af_pwdn =
csi1_dev0_act_used = 0
csi1_dev0_act_name = "ad5820_act"
csi1_dev0_act_slave = 0x18
;--------------------------------------------------------------------------------------------------------
;compatible ---regulator0 name, support:axp221s-regulator
;regulator_count ---pmu ldo count, changed with different pmu
;regulator(1~regulator_count) ---ldo details
;--------------------------------------------------------------------------------------------------------
[regulator0]
compatible = "axp221s-regulator"
regulator_count = 20
regulator1 = "axp221s_dcdc1 none vcc-hdmi vcc-io vcc-dsi vcc-usb vdd-efuse vcc-hp vcc-audio vcc-emmc vcc-card vcc-pc vcc-pd vcc-3v vcc-tvout vcc-tvin vcc-emmcv vcc-sdcv vcc-sdcvq33 vcc-sdcvd vcc-nand vcc-sdcv-p3 vcc-sdcvq33-p3 vcc-sdcvd-p3"
regulator2 = "axp221s_dcdc2 none vdd-cpua"
regulator3 = "axp221s_dcdc3 none vdd-sys vdd-gpu"
regulator4 = "axp221s_dcdc4 none"
regulator5 = "axp221s_dcdc5 none vcc-dram"
regulator6 = "axp221s_rtc none vcc-rtc"
regulator7 = "axp221s_aldo1 none vcc-25 csi-avdd"
regulator8 = "axp221s_aldo2 none vcc-ephy0"
regulator9 = "axp221s_aldo3 none avcc vcc-pll"
regulator10 = "axp221s_dldo1 none vcc-io-wifi vcc-pg "
regulator11 = "axp221s_dldo2 none vcc-wifi1"
regulator12 = "axp221s_dldo3 none vcc-wifi2"
regulator13 = "axp221s_dldo4 none vdd-sata-25 vcc-pf"
regulator14 = "axp221s_eldo1 none vcc-pe csi-iovcc csi-afvcc"
regulator15 = "axp221s_eldo2 none csi-dvdd"
regulator16 = "axp221s_eldo3 none vdd-sata-12"
regulator17 = "axp221s_ldoio0 none vcc-ctp"
regulator18 = "axp221s_ldoio1 none vcc-i2s-18"
regulator19 = "axp221s_dc1sw none ephy0-dvdd"
regulator20 = "axp221s_dc5ldo none"
（电源设备树的修改）
;--------------------------------------------------------------------------------------------------------
;compatible ---regulator0 name, support:axp221s-regulator
;regulator_count ---pmu ldo count, changed with different pmu
;regulator(1~regulator_count) ---ldo details
;--------------------------------------------------------------------------------------------------------
[regulator0]
compatible = "axp221s-regulator"
regulator_count = 20
regulator1 = "axp221s_dcdc1 none vcc-hdmi vcc-io vcc-dsi vcc-usb vdd-efuse vcc-hp vcc-audio vcc-emmc vcc-card vcc-pc vcc-pd vcc-3v vcc-tvout vcc-tvin vcc-emmcv vcc-sdcv vcc-sdcvq33 vcc-sdcvd vcc-nand vcc-sdcv-p3 vcc-sdcvq33-p3 vcc-sdcvd-p3"
regulator2 = "axp221s_dcdc2 none vdd-cpua"
regulator3 = "axp221s_dcdc3 none vdd-sys vdd-gpu"
regulator4 = "axp221s_dcdc4 none"
regulator5 = "axp221s_dcdc5 none vcc-dram"
regulator6 = "axp221s_rtc none vcc-rtc"
regulator7 = "axp221s_aldo1 none"
regulator8 = "axp221s_aldo2 none vcc-ephy0"
regulator9 = "axp221s_aldo3 none avcc vcc-pll"
regulator10 = "axp221s_dldo1 none vcc-io-wifi vcc-pg "
regulator11 = "axp221s_dldo2 none vcc-wifi1"
regulator12 = "axp221s_dldo3 none vcc-wifi2"
regulator13 = "axp221s_dldo4 none vdd-sata-25 vcc-pf"
regulator14 = "axp221s_eldo1 none"
regulator15 = "axp221s_eldo2 none"
regulator16 = "axp221s_eldo3 none"
regulator17 = "axp221s_ldoio0 none vcc-ctp"
regulator18 = "axp221s_ldoio1 none vcc-i2s-18"
regulator19 = "axp221s_dc1sw none ephy0-dvdd"
regulator20 = "axp221s_dc5ldo none"
4、（为了调试方便，可选修改：）
W:\ov5640_spi20_r40t\target\allwinner\generic\configs\env-3.10.cfg
#kernel command arguments
enforcing=1
earlyprintk=sunxi-uart,0x01c28000
initcall_debug=0
console=ttyS0,115200
nor_root=/dev/mtdblock4
nand_root=/dev/nandd
mmc_root=/dev/mmcblk0p7
init=/sbin/init
loglevel=8
cma=256M
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nor=setenv bootargs enforcing=${enforcing} earlyprintk=${earlyprintk} initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nor_root} rootwait init=${init} partitions=${partitions} cma=${cma}
setargs_nand=setenv bootargs enforcing=${enforcing} earlyprintk=${earlyprintk} initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootwait init=${init} partitions=${partitions} cma=${cma}
setargs_mmc=setenv bootargs enforcing=${enforcing} earlyprintk=${earlyprintk} initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${mmc_root} rootwait init=${init} partitions=${partitions} cma=${cma}
boot_normal=fatload sunxi_flash boot 43800000 uImage;bootm 43800000
boot_recovery=fatload sunxi_flash recovery 43800000 uImage;bootm 43800000
boot_fastboot=fastboot
#recovery key
recovery_key_value_max=0x13
recovery_key_value_min=0x10
#fastboot key
fastboot_key_value_max=0x8
fastboot_key_value_min=0x2
#uboot system env config
bootdelay=3
#default bootcmd, will change at runtime according to key press
bootcmd=run setargs_nand boot_normal#default nand boot
5、打开摄像头的抓图程序cameratest：
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$ll
总用量 96
drwxrwxr-x 4 rootroot rootroot 4096 1月 12 2017 build
drwxrwxr-x 3 rootroot rootroot 4096 1月 12 2017 config
-r--r--r-- 1 rootroot rootroot 609 1月 12 2017 Config.in
drwxrwxr-x 3 rootroot rootroot 24576 1月 12 2017 dl
drwxrwxr-x 3 rootroot rootroot 4096 1月 12 2017 docs
drwxrwxr-x 4 rootroot rootroot 4096 11月 13 20:57 lichee
-r--r--r-- 1 rootroot rootroot 82 1月 12 2017 Makefile
drwxrwxr-x 4 rootroot rootroot 4096 11月 14 10:02 out
drwxrwxr-x 19 rootroot rootroot 4096 10月 20 20:47 package
drwxrwxr-x 4 rootroot rootroot 4096 1月 12 2017 prebuilt
-r--r--r-- 1 rootroot rootroot 13360 1月 12 2017 rules.mk
drwxrwxr-x 6 rootroot rootroot 4096 1月 12 2017 scripts
drwxrwxr-x 7 rootroot rootroot 4096 10月 18 15:53 target
drwxrwxr-x 3 rootroot rootroot 4096 11月 14 15:00 tmp
drwxrwxr-x 12 rootroot rootroot 4096 1月 12 2017 toolchain
drwxrwxr-x 60 rootroot rootroot 4096 1月 12 2017 tools
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$source build/envsetup.sh
including target/allwinner/azalea-m2ultra/vendorsetup.sh
including target/allwinner/azalea-perf1/vendorsetup.sh
including target/allwinner/octopus-dev/vendorsetup.sh
including target/allwinner/azalea-evb/vendorsetup.sh
including target/allwinner/azalea-perf3/vendorsetup.sh
including target/allwinner/octopus-sch/vendorsetup.sh
including target/allwinner/nuclear-dev/vendorsetup.sh
including target/allwinner/astar-spk/vendorsetup.sh
including target/allwinner/tulip-d1/vendorsetup.sh
including target/allwinner/azalea-m2ultraservers/vendorsetup.sh
including target/allwinner/generic/vendorsetup.sh
including target/allwinner/astar-evb/vendorsetup.sh
including target/allwinner/astar-parrot/vendorsetup.sh
including target/allwinner/azalea-perf2/vendorsetup.sh
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$lunch
You're building on Linux
Lunch menu... pick a combo:
1. azalea_m2ultra-tina
2. azalea_m2ultra-dragonboard
3. azalea_perf1-tina
4. azalea_perf1-dragonboard
5. octopus_dev-tina
6. octopus_dev-dragonboard
7. azalea_evb-tina
8. azalea_evb-dragonboard
9. azalea_perf3-tina
10. azalea_perf3-dragonboard
11. octopus_sch-tina
12. octopus_sch-dragonboard
13. nuclear_dev-tina
14. nuclear_dev-dragonboard
15. astar_spk-tina
16. astar_spk-dragonboard
17. tulip_d1-tina
18. tulip_d1-dragonboard
19. azalea_m2ultraservers-tina
20. azalea_m2ultraservers-dragonboard
21. astar_evb-tina
22. astar_parrot-tina
23. astar_parrot-dragonboard
24. azalea_perf2-tina
25. azalea_perf2-dragonboard
Which would you like?1
============================================
PLATFORM_VERSION_CODENAME=Neptune
PLATFORM_VERSION=2.1.1
PRODUCT_VERSION=v1.0
TARGET_PRODUCT=azalea_m2ultra
TARGET_BUILD_VARIANT=tina
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
TARGET_CPU_VARIANT=cortex-a7
TARGET_2ND_ARCH=
TARGET_2ND_ARCH_VARIANT=
TARGET_2ND_CPU_VARIANT=
HOST_ARCH=x86_64
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.13.0-24-generic-x86_64-with-Ubuntu-14.04-trusty
HOST_BUILD_TYPE=release
BUILD_ID=5861D22E
TARGET_OUT_DIR=out/azalea-m2ultra
============================================
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$make menuconfig
Allwinner --->
< > cameratest.............................. camerateset just test the camera
修改为：
<*> cameratest.............................. camerateset just test the camera
6、通过cameratest获取NV12格式的YUV图片：
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$make -j12
rootroot@cm-System-Product-Name:/home/rediron/r40_tinav2.1/spi20_r40_tinav2.1$pack
打包刷机之后：
[ 43.941698] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[ 43.942520] sunxi-mmc sdc1: smc 2 p1 err, cmd 55, RTO !!
[ 43.942537] sunxi-mmc sdc1: sdc set ios: clk 400000Hz bm OD pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[ 43.943388] sunxi-mmc sdc1: smc 2 p1 err, cmd 1, RTO !!
[ 43.943405] sunxi-mmc sdc1: sdc set ios: clk 0Hz bm OD pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
[ 44.046319] dhd_module_init: Failed to load driver max retry reached**
[ 44.053573] dhd_module_init: Exit err=-19
BusyBox v1.24.1 () built-in shell (ash)
_____ _ __ _
|_ _||_| ___ _ _ | | |_| ___ _ _ _ _
| | _ | || | | |__ | || || | ||_'_|
| | | || | || _ | |_____||_||_|_||___||_,_|
|_| |_||_|_||_|_| Tina is Based on OpenWrt!
----------------------------------------------
Tina Linux (Neptune, 5861D22E)
----------------------------------------------
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/# lsmod
crc_ccitt 1003 1 ppp_async
disp 1024221 1 mali
ft5x_ts 56095 0
fuse 59395 0
mali 146657 0
ov5640 23837 0
ppp_async 6125 0
snd_mixer_oss 11447 1 snd_pcm_oss
snd_pcm_oss 32590 0
snd_rawmidi 15038 0
snd_seq_device 4206 1 snd_rawmidi
uvcvideo 55997 0
vfe_io 24990 3 vfe_v4l2
vfe_v4l2 170636 0
videobuf2_core 20745 2 uvcvideo
videobuf2_dma_contig 7462 1 vfe_v4l2
videobuf2_memops 1167 2 videobuf2_vmalloc
videobuf2_vmalloc 2260 1 uvcvideo
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/# cd /dev
root@TinaLinux:/dev#
root@TinaLinux:/dev# ll v*
crw-r--r-- 1 root root 7, 0 Jan 1 18:38 vcs
crw-r--r-- 1 root root 7, 1 Jan 1 18:38 vcs1
crw-r--r-- 1 root root 7, 128 Jan 1 18:38 vcsa
crw-r--r-- 1 root root 7, 129 Jan 1 18:38 vcsa1
crw-r--r-- 1 root root 10, 60 Jan 1 18:38 vhci
crw-r--r-- 1 root root 81, 0 Jan 1 18:38 video0
root@TinaLinux:/dev#
root@TinaLinux:/dev#
root@TinaLinux:/dev# cd /bin
root@TinaLinux:/bin#
root@TinaLinux:/bin# ll c*
-rwxr-xr-x 1 root root 16415 Nov 14 2017 cameratest
lrwxrwxrwx 1 root root 7 Nov 14 2017 cat -> busybox
lrwxrwxrwx 1 root root 7 Nov 14 2017 chgrp -> busybox
lrwxrwxrwx 1 root root 7 Nov 14 2017 chmod -> busybox
lrwxrwxrwx 1 root root 7 Nov 14 2017 chown -> busybox
-rwxrwxr-x 1 root root 7486 Nov 14 2017 config_generate
lrwxrwxrwx 1 root root 7 Nov 14 2017 cp -> busybox
root@TinaLinux:/bin#
root@TinaLinux:/bin#
root@TinaLinux:/bin#
root@TinaLinux:/bin# cameratest
[hawkview_dbg]hawkview_init set_w 1280
[hawkview_msg]----sunxi9iw1p1 capture register sucessfully!
[hawkview_dbg]hawkview_init 2
[hawkview_dbg]video pthread_create ret:0
[hawkview_dbg]command pthread_create ret:0
[hawkview_dbg]video thread status 0 --> 101
（在WIN7下通过ADB执行：echo "146:0:1:640x480#" > command）
[hawkview_dbg]read cmd [ 367.874915] [VFE]vfe_open
146:0:1:640x480#
[hawkview_db[ 367.879364] [VFE]vfe_runtime_resume
g]cmd 0: 146
[hawkview_dbg]cmd 1: 0
[hawkview_dbg]cmd 2: 1
[hawkview_dbg]cmd 3: 640
[hawkview_dbg]cmd 4: 480
[hawkview_dbg]send command 146
[hawkview_dbg]video thread cmd: 0 --> 146
[ha[ 367.901274] [VFE]..........................vfe clk open!.......................
wkview_dbg]reset video capture
[ 367.911823] [VFE]vfe_open ok
[hawkview_msg]----open /dev/video0
[hawkview_err]xxxxquery sensor type ctrl failed[hawkview_msg]----get sensor type: 0
[ 368.919222] [VFE_ERR]set input i(1)>dev_qty(1)-1 error!
[hawkview_err]xxxxVIDIOC_S_INPUT[ 368.925295] [VFE]Set csi core clk = 324000000, after Set csi core clk = 300000000
failed! s_input: 1
[ 368.949874] [VFE]mclk on
[ 369.020884] ****wyb drivers/media/platform/sunxi-vfe/device/ov5640.c:3803/sensor_detect()!
[ 369.032713] ****wyb drivers/media/platform/sunxi-vfe/device/ov5640.c:3806/sensor_detect()! 0x300a rdval=0x56
[ 369.045569] ****wyb drivers/media/platform/sunxi-vfe/device/ov5640.c:3812/sensor_detect()! 0x300b rdval=0x40
[ 369.460120] [OV5640]s_fmt set width = 640, height = 480
[ 369.466695] csi->frame_info.frm_byte_size = 460800
[hawkview_msg]----the tried size[ 369.477629] [VFE]queue_setup, buffer count=10, size=460800
is 640x480,the supported size is 640x480!
[ 369.487826] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.496813] ion_alloc carveout failed!!
[ 369.509617] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.518294] ion_alloc carveout failed!!
[ 369.523098] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.531666] ion_alloc carveout failed!!
[ 369.544202] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.552807] ion_alloc carveout failed!!
[ 369.558855] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.567497] ion_alloc carveout failed!!
[ 369.579848] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.588538] ion_alloc carveout failed!!
[ 369.594150] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.602709] ion_alloc carveout failed!!
[ 369.613211] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.621806] ion_alloc carveout failed!!
[ 369.627830] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.636467] ion_alloc carveout failed!!
[ 369.645614] cameratest-4367 ion_alloc:522 buffer alloc fail ! heap id 4, len 462848
[ 369.654229] ion_alloc carveout failed!!
[hawkview_dbg]map buffer index: 0, mem: b6e2a000, len: 70800, offset: 0
[hawkview_dbg]map buffer index: 1, mem: b6db9000, len: 70800, offset: 71000
[hawkview_dbg]map buffer index: 2, mem: b6d48000, len: 70800, offset: e2000
[hawkview_dbg]map buffer index: 3, mem: b6cd7000, len: 70800, offset: 153000
[hawkview_dbg]map buffer index: 4, mem: b6c66000, len: 70800, offset: 1c4000
[hawkview_dbg]map buffer index: 5, mem: b6bf5000, len: 70800, offset: 235000
[hawkview_dbg]map buffer index: 6, mem: b6b84000, len: 70800, offset: 2a6000
[hawkview_dbg]map buffer index: 7, me[ 369.707805] [VFE]capture video mode!
m: b6b13000, len: 70800, offset: 317000
[hawkview_dbg]map buffer index: 8, mem: b6aa2000, len: 70800, offset: 388000
[hawkview_dbg]map buffer index: 9, mem: b6a31000, len: 70800, offset: 3f9000
[hawkview_dbg]video thread status 101 --> 102
[hawkview_dbg]capture frame command -1 --> 161
[hawkview_dbg]capture frame [ 369.741120] [VFE]capture video first frame done!
status -1 --> 0
[hawkview_dbg]capture start streaming
[hawkview_dbg]capture frame command 161 --> 0
[hawkview_dbg]capture frame status 0 --> 1
（在WIN7下通过ADB执行：echo "149:test1013.yuv#" > command）
[hawkview_dbg]read cmd 149:test1013.yuv#
[hawkview_dbg]cmd 0: 149
[hawkview_dbg]cmd 1: test1013.yuv
[hawkview_dbg]send command 149
[hawkview_dbg]index: 9 buffers[buf.index].start = 0xb6a31000
[hawkview_dbg]image_name: /tmp/test1013.yuv
[hawkview_err]xxxxOpen sync file error[hawkview_dbg]image exif info:
image_name = test1013.yuv
width = 640
height = 480
exp_time_num = 0
exp_time_den = 0
sht_speed_num = 0
sht_speed_den = 0
fnumber = 0
exp_bias = 0
foc_length = 0
iso_speed = 0
flash_fire = 0
brightness = 0
#
[hawkview_dbg]--------set_exif_info end
（由于cameratest不能自行退出，只能按ctrl+C强制退出！）
^C[ 418.120438] [VFE]vfe_close
[ 418.123429] [VFE]mclk off
[ 418.162612] [VFE]vfe_runtime_suspend
[ 418.166546] [VFE]..........................vfe clk close!.......................
[ 418.183428] [VFE]vfe_close end
root@TinaLinux:/bin#
root@TinaLinux:/bin#
现在在WIN7在通过命令行的ADB连接全志R40平台：
Microsoft Windows [版本 6.1.7600]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
C:\Users\Administrator>adb shell
BusyBox v1.24.1 () built-in shell (ash)
_____ _ __ _
|_ _||_| ___ _ _ | | |_| ___ _ _ _ _
| | _ | || | | |__ | || || | ||_'_|
| | | || | || _ | |_____||_||_|_||___||_,_|
|_| |_||_|_||_|_| Tina is Based on OpenWrt!
----------------------------------------------
Tina Linux (Neptune, 5861D22E)
----------------------------------------------
root@TinaLinux:/#
root@TinaLinux:/# cd /tmp
cd /tmp
root@TinaLinux:/tmp#
root@TinaLinux:/tmp# ll
ll
drwxrwxrwt 10 root root 280 Jan 1 18:38 .
drwxr-xr-x 1 root root 1024 Jan 1 18:38 ..
drwx------ 2 root root 40 Jan 1 18:38 .uci
-rw-r--r-- 1 root root 6 Jan 1 18:38 TZ
-rw-r--r-- 1 root root 5 Jan 1 18:38 booting_state
drwxr-xr-x 3 root root 60 Jan 1 18:38 lib
drwxrwxrwx 2 root root 40 Jan 1 18:38 lock
drwxr-xr-x 2 root root 80 Jan 1 18:38 log
lrwxrwxrwx 1 root root 21 Jan 1 18:38 resolv.conf -> /tmp/resolv.conf.auto
-rw-r--r-- 1 root root 0 Jan 1 18:38 resolv.conf.auto
drwxrwxrwx 3 root root 160 Jan 1 18:38 run
drwxrwxrwt 2 root root 40 Jan 1 18:38 shm
drwxrwxrwx 2 root root 60 Jan 1 18:38 state
drwxr-xr-x 2 root root 40 Jan 1 18:38 tmp
root@TinaLinux:/tmp#
root@TinaLinux:/tmp#
（这里告诉cameratest分辨率是：640x480）
root@TinaLinux:/tmp# echo "146:0:1:640x480#" > command
echo "146:0:1:640x480#" > command
root@TinaLinux:/tmp#
root@TinaLinux:/tmp#
root@TinaLinux:/tmp# cat command
cat command
146:0:1:640x480#
root@TinaLinux:/tmp#
root@TinaLinux:/tmp#
（告诉cameratest抓图，文件名为：test1013.yuv）
root@TinaLinux:/tmp# echo "149:test1013.yuv#" > command
echo "149:test1013.yuv#" > command
root@TinaLinux:/tmp#
root@TinaLinux:/tmp# ll
ll
drwxrwxrwt 10 root root 340 Jan 1 18:45 .
drwxr-xr-x 1 root root 1024 Jan 1 18:38 ..
drwx------ 2 root root 40 Jan 1 18:38 .uci
-rw-r--r-- 1 root root 6 Jan 1 18:38 TZ
-rw-r--r-- 1 root root 5 Jan 1 18:38 booting_state
-rw-rw-rw- 1 root root 18 Jan 1 18:45 command
drwxr-xr-x 3 root root 60 Jan 1 18:38 lib
drwxrwxrwx 2 root root 40 Jan 1 18:38 lock
drwxr-xr-x 2 root root 80 Jan 1 18:38 log
lrwxrwxrwx 1 root root 21 Jan 1 18:38 resolv.conf -> /tmp/resolv.conf.auto
-rw-r--r-- 1 root root 0 Jan 1 18:38 resolv.conf.auto
drwxrwxrwx 3 root root 160 Jan 1 18:38 run
drwxrwxrwt 2 root root 40 Jan 1 18:38 shm
drwxrwxrwx 2 root root 60 Jan 1 18:38 state
-rw-r--r-- 1 root root 1000 Jan 1 18:45 test1013.yuv.exif
drwxr-xr-x 2 root root 40 Jan 1 18:38 tmp
-rw-r--r-- 1 root root 460800 Jan 1 18:45 yuvtest1013.yuv
root@TinaLinux:/tmp#
root@TinaLinux:/tmp# cat command
cat command
149:test1013.yuv#
root@TinaLinux:/tmp#
root@TinaLinux:/tmp#
7、通过ADB获取NV12格式的YUV图片到WIN7上：
root@TinaLinux:/tmp# exit
exit
C:\Users\Administrator>
C:\Users\Administrator>cd c:\tmp
（简单粗暴，直接将/tmp目录下的所有文件通过ADB全部拉到WIN7上！）
c:\tmp>adb pull /tmp/ .
pull: building file list...
skipping special file 'resolv.conf'
skipping special file 'ubus.sock'
skipping special file 'system_bus_socket'
pull: /tmp/log/wtmp -> ./log/wtmp
pull: /tmp/log/lastlog -> ./log/lastlog
pull: /tmp/lib/dbus/machine-id -> ./lib/dbus/machine-id
pull: /tmp/state/network -> ./state/network
pull: /tmp/run/ntpd.pid -> ./run/ntpd.pid
pull: /tmp/run/dbus.pid -> ./run/dbus.pid
pull: /tmp/run/config.md5 -> ./run/config.md5
pull: /tmp/run/logread.1.pid -> ./run/logread.1.pid
pull: /tmp/booting_state -> ./booting_state
pull: /tmp/resolv.conf.auto -> ./resolv.conf.auto
pull: /tmp/TZ -> ./TZ
pull: /tmp/command -> ./command
pull: /tmp/test1013.yuv.exif -> ./test1013.yuv.exif
pull: /tmp/yuvtest1013.yuv -> ./yuvtest1013.yuv
14 files pulled. 0 files skipped.
2042 KB/s (462316 bytes in 0.221s)
c:\tmp>
8、使用yuvplayer.exe查看NV12格式的YUV图片：
设置如下：
Size:VGA(640x480)
Color:NV12
9、已知问题：使用fpscamera连续抓100张图片，可以发现细微的横条纹！
使用全志R16平台tina v2.1系统下的解决方法无效！
横条纹的问题应该是全志特色，全志的多平台都出现了这个问题（Android+linux/tina）应该是全志的硬件（GPU）设计的问题。只能找全志原厂解决了！^_
以前在全志A31S平台的Android上，全志是通过清除物理内存来解决的！全志R16的tina应该也是这样解决的！
我用过Amlogic的M802/S802和freescale的i.MX6Q都没有出现这个问题。
如果碰到这个问题，我只能祝福您好运了！^_别弄了，不是你的问题！（你搞不定的）兄弟！
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