__xdata struct ao_packet ao_tx_packet;
__pdata uint8_t ao_packet_rx_len, ao_packet_rx_used, ao_packet_tx_used;
-static __xdata char tx_data[AO_PACKET_MAX];
-static __xdata char rx_data[AO_PACKET_MAX];
+static __xdata uint8_t tx_data[AO_PACKET_MAX];
+static __xdata uint8_t rx_data[AO_PACKET_MAX];
static __pdata uint8_t rx_seq;
__xdata struct ao_task ao_packet_task;
void
ao_packet_putchar(char c) __reentrant
{
+ /* No need to block interrupts, all variables here
+ * are only manipulated in task context
+ */
while (ao_packet_tx_used == AO_PACKET_MAX && ao_packet_enable) {
#if PACKET_HAS_MASTER
ao_packet_flush();
tx_data[ao_packet_tx_used++] = c;
}
-char
-ao_packet_pollchar(void) __critical
+/* May be called with interrupts blocked */
+int
+_ao_packet_pollchar(void)
{
if (!ao_packet_enable)
return AO_READ_AGAIN;