/* handleRxChar runs on uart isr */
static int
handleRxChar(uint8_t c)
{
if (put_ringbuf(c) == -1) {
printf("Ringbuf full. Skip char\n");
} else {
/* Send event to rx data handler */
process_poll(&rx_data_process);
}
return 0;
}
/* write data to ring buffer. and then start the write transfer */
static int spcp8x5_write(struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
dev_dbg(&port->dev, "%d bytes\n", count);
if (!count)
return count;
spin_lock_irqsave(&priv->lock, flags);
count = put_ringbuf(priv->buf, buf, count);
spin_unlock_irqrestore(&priv->lock, flags);
spcp8x5_send(port);
return count;
}
