void
capture_task (void *data)
{
int ret;
// We need to disable interrupts during capture so we do not
// interfere with taking a photo
extint_disable (extint1);
while ( tcm8230_frame_ready_p ())
continue;
while (! tcm8230_frame_ready_p ())
continue;
ret = tcm8230_capture (image, sizeof(image), 200);
if (ret < 0) // Capturing failed
*comms_data[CD_PHOTO_READY-ARRAY_OFFSET] = 0;
else
{
*comms_data[CD_PHOTO_READY-ARRAY_OFFSET] = 1;
kernelTaskBlocked (CAPTURE_TASK); // Reblock capture task
kernelTaskReady (PHOTO_READY_FLASH_TASK); // Indicate a photo is available
}
extint_enable (extint1);
}
int
main (void)
{
led_t leds[LEDS_NUM];
usb_cdc_t usb_cdc;
int i;
/* Initialise LEDs. */
for (i = 0; i < LEDS_NUM; i++)
leds[i] = led_init (&leds_cfg[i]);
led_set (leds[0], 0);
led_set (leds[1], 0);
led_set (leds[2], 0);
usb_cdc = usb_cdc_init ();
sys_redirect_stdin ((void *)usb_cdc_read, usb_cdc);
sys_redirect_stdout ((void *)usb_cdc_write, usb_cdc);
sys_redirect_stderr ((void *)usb_cdc_write, usb_cdc);
tcm8230_init (&cfg);
/* Wait until USB configured. */
while (! usb_cdc_update ())
continue;
led_set (leds[0], 1);
while (1)
{
int32_t ret;
led_set (leds[1], 1);
while ( tcm8230_frame_ready_p ())
continue;
led_set (leds[1], 0);
while (! tcm8230_frame_ready_p ())
continue;
led_set (leds[1], 1);
ret = tcm8230_capture (image, sizeof(image), 200);
if (usb_cdc_update ())
{
led_set (leds[0], 1);
led_set (leds[2], 1);
if (ret < 0)
fprintf (stderr, "TCM8230 error: %d\r\n", (int)ret);
else
image_dump(image, SQCIF_HEIGHT, SQCIF_WIDTH);
led_set (leds[2], 0);
}
else
{
/* USB disconnected. */
led_set (leds[0], 0);
}
}
}
