void __attribute__((noreturn)) serial_recv_task(struct vcom * vcom)
{
struct serial_dev * serial = vcom->serial;
struct usb_cdc_class * cdc = vcom->cdc;
uint8_t buf[VCOM_BUF_SIZE];
int len;
DCC_LOG1(LOG_TRACE, "[%d] started.", thinkos_thread_self());
/* wait for line configuration */
usb_cdc_acm_lc_wait(cdc);
/* enable serial */
serial_enable(serial);
for (;;) {
len = serial_read(serial, buf, VCOM_BUF_SIZE, 1000);
if (len > 0) {
// dbg_write(buf, len);
if (vcom->mode == VCOM_MODE_CONVERTER) {
led_flash(LED_AMBER, 50);
usb_cdc_write(cdc, buf, len);
}
if (vcom->mode == VCOM_MODE_SDU_TRACE) {
led_flash(LED_AMBER, 50);
sdu_decode(buf, len);
}
#if RAW_TRACE
if (len == 1)
DCC_LOG1(LOG_TRACE, "RX: %02x", buf[0]);
else if (len == 2)
DCC_LOG2(LOG_TRACE, "RX: %02x %02x",
buf[0], buf[1]);
else if (len == 3)
DCC_LOG3(LOG_TRACE, "RX: %02x %02x %02x",
buf[0], buf[1], buf[2]);
else if (len == 4)
DCC_LOG4(LOG_TRACE, "RX: %02x %02x %02x %02x",
buf[0], buf[1], buf[2], buf[3]);
else if (len == 5)
DCC_LOG5(LOG_TRACE, "RX: %02x %02x %02x %02x %02x",
buf[0], buf[1], buf[2], buf[3], buf[4]);
else if (len == 6)
DCC_LOG6(LOG_TRACE, "RX: %02x %02x %02x %02x %02x %02x",
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
else if (len == 7)
DCC_LOG7(LOG_TRACE, "RX: %02x %02x %02x %02x %02x %02x %02x ",
buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5], buf[6]);
else
DCC_LOG8(LOG_TRACE, "RX: %02x %02x %02x %02x %02x %02x "
"%02x %02x ...", buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5], buf[6], buf[7]);
#endif
#if SDU_TRACE
RX(buf, len);
#endif
}
}
}
int serial_recv_task(struct vcom * vcom)
{
struct serial_dev * serial = vcom->serial;
struct usb_cdc_class * usb = vcom->usb;
char buf[VCOM_BUF_SIZE];
int len;
DCC_LOG1(LOG_TRACE, "[%d] started.", thinkos_thread_self());
for (;;) {
len = serial_read(serial, buf, VCOM_BUF_SIZE, 100);
if (len > 0)
usb_cdc_write(usb, buf, len);
}
return 0;
}
int usb_printf(usb_cdc_class_t * cdc, const char *fmt, ... )
{
va_list ap;
int ret;
int n;
va_start(ap, fmt);
n = vsnprintf(s, 129, fmt, ap);
va_end(ap);
n = MIN(n, 128);
ret = usb_cdc_write(cdc, s, n);
DCC_LOG1(LOG_TRACE, "ret=%d", ret);
return ret;
}
int usb_puts(const char * s)
{
return usb_cdc_write(usb_cdc, s, strlen(s));
}
// send everything in buffer
void cdc_control_flush(void) {
if(fill) usb_cdc_write(buffer, fill);
fill = 0;
}
