/*
* ======== api_exit ========
*/
void api_exit(void)
{
DBC_REQUIRE(api_c_refs > 0);
api_c_refs--;
if (api_c_refs == 0) {
/* Release all modules initialized in api_init(). */
cod_exit();
dev_exit();
chnl_exit();
msg_exit();
io_exit();
strm_exit();
disp_exit();
node_exit();
proc_exit();
mgr_exit();
rmm_exit();
drv_exit();
}
DBC_ENSURE(api_c_refs >= 0);
}
static void disp_exit()
{
disp_exit();
exit(0);
}
int main(int argc, char* argv[])
{
int i;
int key_fd = -1;
struct input_event data;
struct sigaction sigact;
memset(&sigact, 0, sizeof(sigact));
sigact.sa_handler = handle_int;
//format=V4L2_PIX_FMT_NV12; //V4L2_PIX_FMT_NV16
format = V4L2_PIX_FMT_NV12;
disp_format=DISP_FORMAT_YUV420; //DISP_FORMAT_YUV422
disp_seq=DISP_SEQ_UVUV;
struct v4l2_format fmt;
struct v4l2_format fmt_priv;
printf("*********************\n");
printf("TVD demo start!\n");
printf("Press KEY_ESC for exit\n");
printf("*********************\n");
/*if((key_fd = open("/dev/input/event0", O_RDONLY | O_NONBLOCK)) < 0){//key: linux=event0, android=event2
printf("open event fail!\n");
return -1;
}*/
fd = open ("/dev/video1", O_RDWR /* required */ | O_NONBLOCK, 0);
int ret = -1;
CLEAR (fmt_priv);
fmt_priv.type = V4L2_BUF_TYPE_PRIVATE;
fmt_priv.fmt.raw_data[0] =0;//interface
fmt_priv.fmt.raw_data[1] =0;//system
fmt_priv.fmt.raw_data[2] =0;//format 1=mb, for test only
fmt_priv.fmt.raw_data[8] =2;//row
fmt_priv.fmt.raw_data[9] =2;//column
fmt_priv.fmt.raw_data[10] =1;//channel_index
fmt_priv.fmt.raw_data[11] =2;//channel_index
fmt_priv.fmt.raw_data[12] =3;//channel_index
fmt_priv.fmt.raw_data[13] =4;//channel_index
if (-1 == ioctl (fd, VIDIOC_S_FMT, &fmt_priv)) //设置自定义
{
printf("VIDIOC_S_FMT error! a\n");
ret = -1;
return ret;
}
// CLEAR (fmt);
// fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
// fmt.fmt.pix.width = 720*fmt_priv.fmt.raw_data[8];//720;
// fmt.fmt.pix.height = 480*fmt_priv.fmt.raw_data[9];//576;//480;
// fmt.fmt.pix.pixelformat = format;//V4L2_PIX_FMT_YUV422P;//V4L2_PIX_FMT_NV12;//V4L2_PIX_FMT_YUYV;
// fmt.fmt.pix.field = V4L2_FIELD_NONE;
// if (-1 == ioctl (fd, VIDIOC_S_FMT, &fmt)) //设置图像格式
// {
// printf("VIDIOC_S_FMT error! b\n");
// ret = -1;
// return ret;
// }
disp_mode=fmt_priv.fmt.raw_data[2]?DISP_MOD_MB_UV_COMBINED:DISP_MOD_NON_MB_UV_COMBINED;//DISP_MOD_NON_MB_UV_COMBINED DISP_MOD_MB_UV_COMBINED
disp_size.width = fmt_priv.fmt.raw_data[8]*(fmt_priv.fmt.raw_data[2]?704:720);//width
disp_size.height = fmt_priv.fmt.raw_data[9]*(fmt_priv.fmt.raw_data[1]?576:480);//height
printf("disp_size.width=%d\n", disp_size.width);
printf("disp_size.height=%d\n", disp_size.height);
usleep(100000);//delay 100ms if you want to check the status after set fmt
CLEAR (fmt_priv);
fmt_priv.type = V4L2_BUF_TYPE_PRIVATE;
if (-1 == ioctl (fd, VIDIOC_G_FMT, &fmt_priv)) //设置自定义
{
printf("VIDIOC_G_FMT error! a\n");
ret = -1;
return ret;
}
printf("interface=%d\n", fmt_priv.fmt.raw_data[0]);
printf("system=%d\n", fmt_priv.fmt.raw_data[1]);
printf("format=%d\n", fmt_priv.fmt.raw_data[2]);
printf("row=%d\n", fmt_priv.fmt.raw_data[8]);
printf("column=%d\n", fmt_priv.fmt.raw_data[9]);
printf("channel_index[0]=%d\n", fmt_priv.fmt.raw_data[10]);
printf("channel_index[1]=%d\n", fmt_priv.fmt.raw_data[11]);
printf("channel_index[2]=%d\n", fmt_priv.fmt.raw_data[12]);
printf("channel_index[3]=%d\n", fmt_priv.fmt.raw_data[13]);
printf("status[0]=%d\n", fmt_priv.fmt.raw_data[16]);
printf("status[1]=%d\n", fmt_priv.fmt.raw_data[17]);
printf("status[2]=%d\n", fmt_priv.fmt.raw_data[18]);
printf("status[3]=%d\n", fmt_priv.fmt.raw_data[19]);
struct v4l2_requestbuffers req;
CLEAR (req);
req.count = 5;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
ioctl (fd, VIDIOC_REQBUFS, &req); //申请缓冲，count是申请的数量，注意，释放缓冲实际在VIDIOC_STREAMOFF内完成了。
buffers = calloc (req.count, sizeof (*buffers));//内存中建立对应空间
for (n_buffers = 0; n_buffers < req.count; ++n_buffers)
{
struct v4l2_buffer buf; //驱动中的一帧
CLEAR (buf);
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = n_buffers;
if (-1 == ioctl (fd, VIDIOC_QUERYBUF, &buf)) //映射用户空间
printf ("VIDIOC_QUERYBUF error\n");
buffers[n_buffers].length = buf.length;
buffers[n_buffers].start = mmap (NULL /* start anywhere */, //通过mmap建立映射关系
buf.length,
PROT_READ | PROT_WRITE /* required */,
MAP_SHARED /* recommended */,
fd, buf.m.offset);
printf("MMAP: %p OFF: %p\n", buffers[n_buffers].start, buf.m.offset);
if (MAP_FAILED == buffers[n_buffers].start)
printf ("mmap failed\n");
}
for (i = 0; i < n_buffers; ++i)
{
struct v4l2_buffer buf;
CLEAR (buf);
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
if (-1 == ioctl (fd, VIDIOC_QBUF, &buf))//申请到的缓冲进入列队
printf ("VIDIOC_QBUF failed\n");
}
#ifdef DISPLAY
disp_init(disp_size.width,disp_size.height);
disp_start();
disp_on();
#endif
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (-1 == ioctl (fd, VIDIOC_STREAMON, &type)) //开始捕捉图像数据
printf ("VIDIOC_STREAMON failed\n");
sigaction(SIGINT, &sigact, NULL);
while(!quit)
{
read(key_fd, &data, sizeof(data));
if( (data.type == EV_KEY)&&
(data.code == KEY_ESC)&&
(data.value == 1) ){
quit = 1;
}
CLEAR (fmt_priv);
fmt_priv.type = V4L2_BUF_TYPE_PRIVATE;
if (-1 == ioctl (fd, VIDIOC_G_FMT, &fmt_priv)) //监视状态
{
printf("VIDIOC_G_FMT error! a\n");
ret = -1;
return ret;
}
//printf("status=0x%02x\n", fmt_priv.fmt.raw_data[16]);
for (;;) //这一段涉及到异步IO
{
fd_set fds;
struct timeval tv;
int r;
FD_ZERO (&fds);//将指定的文件描述符集清空
FD_SET (fd, &fds);//在文件描述符集合中增加一个新的文件描述符
/* Timeout. */
tv.tv_sec = 2;
tv.tv_usec = 0;
r = select (fd + 1, &fds, NULL, NULL, &tv);//判断是否可读（即摄像头是否准备好），tv是定时
if (-1 == r) {
if (EINTR == errno)
continue;
printf ("select err\n");
}
if (0 == r) {
fprintf (stderr, "select timeout\n");
//exit (EXIT_FAILURE);
//goto close;
}
if (read_frame ())//如果可读，执行read_frame ()函数，并跳出循环
break;
}
}
close:
if (-1 == ioctl (fd, VIDIOC_STREAMOFF, &type)) //停止捕捉图像数据，注意，此动作同时会释放VIDIOC_REQBUFS申请的缓冲
printf ("VIDIOC_STREAMOFF failed\n");
unmap:
for (i = 0; i < n_buffers; ++i) {
if (-1 == munmap (buffers[i].start, buffers[i].length)) {
printf ("munmap error");
}
}
disp_stop();
disp_exit();
close (fd);
printf("TVD demo bye!\n");
return 0;
}
/*
* ======== api_init ========
* Purpose:
* Module initialization used by Bridge API.
*/
bool api_init(void)
{
bool ret = true;
bool fdrv, fdev, fcod, fchnl, fmsg, fio;
bool fmgr, fproc, fnode, fdisp, fstrm, frmm;
if (api_c_refs == 0) {
/* initialize driver and other modules */
fdrv = drv_init();
fmgr = mgr_init();
fproc = proc_init();
fnode = node_init();
fdisp = disp_init();
fstrm = strm_init();
frmm = rmm_init();
fchnl = chnl_init();
fmsg = msg_mod_init();
fio = io_init();
fdev = dev_init();
fcod = cod_init();
ret = fdrv && fdev && fchnl && fcod && fmsg && fio;
ret = ret && fmgr && fproc && frmm;
if (!ret) {
if (fdrv)
drv_exit();
if (fmgr)
mgr_exit();
if (fstrm)
strm_exit();
if (fproc)
proc_exit();
if (fnode)
node_exit();
if (fdisp)
disp_exit();
if (fchnl)
chnl_exit();
if (fmsg)
msg_exit();
if (fio)
io_exit();
if (fdev)
dev_exit();
if (fcod)
cod_exit();
if (frmm)
rmm_exit();
}
}
if (ret)
api_c_refs++;
return ret;
}
/* display piu isr handler */
void disp_handler(void *ctx, piu_msg_p msg)
{
uint16_t cmd_id;
memcpy(&disp_rx, msg, sizeof(piu_msg_t));
cmd_id = DISP_U8_TO_U16(disp_rx.p);
dbg("V %x\n", cmd_id);
if ((cmd_id & 0xFF) == DISP_GET)
{
switch (cmd_id&0xFF00)
{
case DISP_IMAGE_PROPERTY:
{
disp_tx.len = 6;
DISP_U8_TO_U16(disp_tx.p) = cmd_id;
DISP_U8_TO_U16(disp_tx.p+2) = cfg.output.size.w;
DISP_U8_TO_U16(disp_tx.p+4) = cfg.output.size.h;
dbg("DISP: rx DISP_GET_IMAGE_PROPERTY ->tx [%d,%d] \n", cfg.output.size.w, cfg.output.size.h);
break;
}
case DISP_IMAGE_START:
{
disp_tx.len = 6;
DISP_U8_TO_U16(disp_tx.p) = cmd_id;
DISP_U8_TO_U16(disp_tx.p+2) = 0; //offset[0];
DISP_U8_TO_U16(disp_tx.p+4) = 0; //offset[1];
dbg("DISP: rx DISP_GET_IMAGE_START -> tx [%d,%d] \n", 0,0); //offset[0], offset[1]);
break;
}
default:
{
printf("rx Unkwown DISP_GET\n");
return;
}
piu_tx(PIU_DISP_QID, &disp_tx);
}
}
else if (cmd_id == (DISP_CFG | DISP_CFG_BUF))
{
// DO NOT send back response because ceva can't receive it due to nested interrupt
uint32_t *addr = (uint32_t *)(disp_rx.p+4);
cfg.input.ybuf[0] = addr[0];
cfg.input.cbbuf[0] = addr[1];
cfg.input.crbuf[0] = addr[2];
// check if there is partial display mode or not
if((g_disp_mode == DISP_IMAGE_MODE) &&(g_partial_disp_mode == 1))
{
//update VPP output buffer pointor
cfg.output.ybuf[0] = vpp_output[0] + g_jpg_slices_index;
cfg.output.cbbuf[0] = 0;
cfg.output.crbuf[0] = 0;
g_jpg_slices_index += g_jpg_slices_height*g_rgb_elem_size*cfg.output.size.w;
dbg("DISP: output ybuf: %x, buf index: %x\n", cfg.output.ybuf[0], g_jpg_slices_index);
}
cfg.flag = VPP_F_ADDR;
dbg("DISP: rx DISP_CFG_BUF: (%x, %x, %x)\n", addr[0], addr[1], addr[2]);
if (vpp_cfg(&vpp, &cfg, DISP_VPP_CH))
{
printf("DISP: VPP_CFG failed\n");
return;
}
dbg("DISP: DISP_START\n");
if (vpp_start(&vpp, DISP_VPP_CH))
{
printf("DISP: VPP_START failed\n");
return;
}
dbg("DISP: DISP_START done\n");
}
else
{
if ((cmd_id & 0xFF) == DISP_CFG)
{
if (piu_vpp_cfg(cmd_id&0xFF00, (char *)disp_rx.p + 4))
{
printf("DISP: VPP_CFG failed\n");
}
}
else if ((cmd_id & 0xFF) == DISP_SET)
{
switch (cmd_id&0xFF00)
{
case DISP_IMAGE_PROPERTY:
{
uint16_t *p = (uint16_t *)(disp_rx.p+2);
cfg.input.size.w = p[0];
cfg.input.size.h = p[1];
cfg.input.stride_y = p[2];
cfg.input.stride_cb = p[3];
cfg.input.stride_cr = p[3];
// check for partial image display mode
if((g_disp_mode == DISP_IMAGE_MODE) && (cfg.input.size.h < g_jpg_height))
{
g_partial_disp_mode = 1;
g_jpg_slices_height = (fbp[1]*cfg.input.size.h)/g_jpg_height;
dbg("DISP: partial input height = %d, output height = %d, orig image height = %d\n",cfg.input.size.h,g_jpg_slices_height,g_jpg_height);
}
//clean 080104
if (disp_rx.len >= 12) //added 2 bytes for yuv format
{
switch (p[4])
{
case 0: cfg.input.format = VPP_PIC_YUV444P;break;
case 1: cfg.input.format = VPP_PIC_YUV422P;break;
case 2: cfg.input.format = VPP_PIC_YUV420P;break;
case 3: cfg.input.format = VPP_PIC_YUV411P;break;
case 4: cfg.input.format = VPP_PIC_YUV400P;break;
default:printf("error yuv format\n");
}
dbg("DISP: output format = %d\n", cfg.input.format);
}
if (disp_rx.len == 16)
{
cfg.input.pixel.w = p[5];
cfg.input.pixel.h = p[6];
if (p[5] == 0 || p[6] == 0)
{
cfg.input.pixel.w = 1;
cfg.input.pixel.h = 1;
}
}
//endclean
cfg.flag |= VPP_F_IN;
dbg("DISP: rx DISP_SET_IMAGE_PROPERTY: size=[%d,%d], stride=[%d %d]\n", p[0], p[1], p[2], p[3]);
#ifdef TV_UNDERRUN_BUG
{
void *stat = mapm(0x8009008, 36);
uint32_t val= 0;
if (stat == (void *)-1)
{
printf("mapm fail\n");
return;
}
val = *((uint32_t *)stat + 8);
printf("image un=%x\n", val);
if (val == 3)
{
int i= 500;
*(uint32_t *)stat = 3;
while (i--);
*((uint32_t *)stat + 1) = 0x38004F;
*((uint32_t *)stat + 5) = 0x93e00000;
*((uint32_t *)stat + 6) = 0x93e54600;
*((uint32_t *)stat + 7) = 0x93e7e900;
*(uint32_t *)stat = 5;
printf("image un=%x\n", *((uint32_t *)stat + 8) );
}
unmapm(stat, 36);
}
#endif
break;
}
default:
{
printf("DISP: rx Unknown DISP_SET\n");
return;
}
}
}
else
{
switch (cmd_id)
{
case DISP_INIT:
{
dbg("DISP: rx DISP_INIT\n");
#if 0
if (disp_init())
{
printf("DISP_INIT failed\n");
return;
}
#endif
if (piu_vpp_init())
{
printf("DISP: VPP_INIT failed\n");
return;
}
dbg("DISP: VPP OPEN\n");
disp_tx.len = 6;
DISP_U8_TO_U16(disp_tx.p) = cmd_id;
DISP_U8_TO_U16(disp_tx.p+2) = cfg.output.size.w;
DISP_U8_TO_U16(disp_tx.p+4) = cfg.output.size.h;
piu_tx(PIU_DISP_QID, &disp_tx);
return;
}
case DISP_START:
{
dbg("DISP: rx DISP_START\n");
if (vpp_start(&vpp, DISP_VPP_CH))
{
printf("DISP: VPP_START failed\n");
return;
}
break;
}
case DISP_CLOSE:
{
g_disp_mode = DISP_VIDEO_MODE;
g_partial_disp_mode = 0;
g_jpg_slices_index = 0;
//vpp_exit(&vpp);
disp_done = 1;
#ifdef TV_UNDERRUN_BUG
{
void *stat = mapm(0x8009028, 4);
uint32_t val= 0;
if (stat == (void *)-1)
{
printf("mapm fail\n");
return;
}
val = *(uint32_t *)stat;
printf("close un=%x\n", val);
if (val == 3)
{
*(uint32_t *)stat = 3;
}
unmapm(stat, 4);
}
#endif
printf("DISP: VPP CLOSE\n");
#if 0
disp_exit();
printf("???disp_exit() done???\n");
#endif
break;
}
default:
{
printf("Unkwown DISP command 0x%x\n", cmd_id);
return;
}
}
}
#ifdef NEED_RESP
printf("\n%x\n", cmd_id);
disp_tx.len = 2;
DISP_U8_TO_U16(disp_tx.p) = cmd_id;
piu_tx(PIU_DISP_QID, &disp_tx);
#endif
}
}
