void gpio_reset(int level)
{
// reset TPG
gpio_export(TPG_RST_PIN);
gpio_dir_out(TPG_RST_PIN);
gpio_value(TPG_RST_PIN, level);
gpio_unexport(TPG_RST_PIN);
// reset SOBEL
gpio_export(SOBEL_RST_PIN);
gpio_dir_out(SOBEL_RST_PIN);
gpio_value(SOBEL_RST_PIN, level);
gpio_unexport(SOBEL_RST_PIN);
// set the external clock for the
gpio_export(EXT_SYNC_PIN);
gpio_dir_out(EXT_SYNC_PIN);
gpio_value(EXT_SYNC_PIN, gLiveVideoOn);
gpio_unexport(EXT_SYNC_PIN);
//printf("\nReset Done\n");
}
void resetStop_VDMA_ALL(void)
{
static int currentLiveMode = 0;
gpio_reset(RST_ACTIVE); // pull the reset line.
// reset and enable the Chroma-resampler and YUV to rgb converter.
chr_stop_reset(gResolution);
yuv2rgb_stop_reset(gResolution);
DEBUG_Text("Reseting TPG_VDMA\n");
// Reset TPG VDMA
vdma_reset(VDMA_ID_TPG, DMA_DEV_TO_MEM); // tpg
DEBUG_Text("Reseting Sobel_out_VDMA\n");
// Reset Sobel VDMA (IN and OUT)
vdma_reset(VDMA_ID_SOBEL, DMA_DEV_TO_MEM); // sobel out
DEBUG_Text("Reseting Soble_in_VDMA\n");
vdma_reset(VDMA_ID_SOBEL, DMA_MEM_TO_DEV); // Soble in
DEBUG_Text("VDMA Reset Done\n");
// release the reset ( and set the required external clock)
chr_start();
yuv2rgb_start();
gpio_reset(RST_INACTIVE);
if (gLiveVideoOn && (gLiveVideoOn != currentLiveMode))
{
unsigned long clk = detect_input_clk()/1000;
// check if the input clock is in range +- 2MHz
if ( (clk < (gVideoParam[gResolution][E_Clk] - 2000)) |
(clk > (gVideoParam[gResolution][E_Clk] + 2000)) )
{
printf("Incorrect Input [Required:%d x %d @ 60fps(Hz)] \nTurning on the previous pattern",
gVideoParam[gResolution][E_HActive],
gVideoParam[gResolution][E_VActive]);
gLiveVideoOn = 0;
gpio_export(EXT_SYNC_PIN);
gpio_dir_out(EXT_SYNC_PIN);
gpio_value(EXT_SYNC_PIN, gLiveVideoOn);
gpio_unexport(EXT_SYNC_PIN);
}
else
{
SetTpgPattern(gResolution, 0);
}
}
currentLiveMode = gLiveVideoOn;
}
int GPIO_Controller::GPIO_Value(int number)
{
stringstream ss;
ss << this->gpio_number;
string numb_string = ss.str();
string gpio_direction = "/sys/class/gpio/gpio" + numb_string + "/value";
ofstream gpio_value(gpio_direction.c_str());
if(gpio_value.is_open())
{
gpio_value << number;
gpio_value.close();
}
else
{
cout << "Error while opening file" << endl;
return -1;
}
return 1;
}