Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos
[fw/altos] / src / drivers / ao_packet.c
index 802d4c9013f9bc1df21aee54dd4e4b44c2d3e9d9..b5a0a4b7e15bbdfd2925d8b3974d26d686cdc0ad 100644 (file)
@@ -3,7 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
 
 #include "ao.h"
 
-__xdata struct ao_packet_recv ao_rx_packet;
-__xdata struct ao_packet ao_tx_packet;
-__pdata uint8_t ao_packet_rx_len, ao_packet_rx_used, ao_packet_tx_used;
+struct ao_packet_recv ao_rx_packet;
+struct ao_packet ao_tx_packet;
+uint8_t ao_packet_rx_len, ao_packet_rx_used, ao_packet_tx_used;
 
-static __xdata uint8_t tx_data[AO_PACKET_MAX];
-static __xdata uint8_t rx_data[AO_PACKET_MAX];
-static __pdata uint8_t rx_seq;
+static uint8_t tx_data[AO_PACKET_MAX];
+static uint8_t rx_data[AO_PACKET_MAX];
+static uint8_t rx_seq;
 
-__xdata struct ao_task ao_packet_task;
-__xdata uint8_t ao_packet_enable;
-__xdata uint8_t ao_packet_restart;
+struct ao_task ao_packet_task;
+uint8_t ao_packet_enable;
+uint8_t ao_packet_restart;
 
 #if PACKET_HAS_MASTER
-__xdata uint8_t ao_packet_master_sleeping;
-__xdata uint8_t ao_packet_last_rssi;
+uint8_t ao_packet_master_sleeping;
 #endif
 
 void
@@ -55,14 +55,14 @@ ao_packet_send(void)
 }
 
 uint8_t
-ao_packet_recv(void)
+ao_packet_recv(uint16_t timeout)
 {
        uint8_t dma_done;
 
 #ifdef AO_LED_GREEN
        ao_led_on(AO_LED_GREEN);
 #endif
-       dma_done = ao_radio_recv(&ao_rx_packet, sizeof (struct ao_packet_recv), 0);
+       dma_done = ao_radio_recv(&ao_rx_packet, sizeof (struct ao_packet_recv), timeout);
 #ifdef AO_LED_GREEN
        ao_led_off(AO_LED_GREEN);
 #endif
@@ -85,16 +85,13 @@ ao_packet_recv(void)
        if (!(ao_rx_packet.status & AO_RADIO_STATUS_CRC_OK))
                return 0;
 
-#if PACKET_HAS_MASTER
-       ao_packet_last_rssi = ao_rx_packet.rssi;
-#endif
        /* Accept packets with matching call signs, or any packet if
         * our callsign hasn't been configured
         */
        if (ao_xmemcmp(ao_rx_packet.packet.callsign,
                       ao_config.callsign,
                       AO_MAX_CALLSIGN) != 0 &&
-           ao_xmemcmp(ao_config.callsign, CODE_TO_XDATA("N0CALL"), 7) != 0)
+           ao_xmemcmp(ao_config.callsign, "N0CALL", 7) != 0)
                return 0;
 
        /* SYN packets carry no data */
@@ -153,7 +150,7 @@ ao_packet_flush(void)
 #endif /* PACKET_HAS_MASTER */
 
 void
-ao_packet_putchar(char c) __reentrant
+ao_packet_putchar(char c) 
 {
        /* No need to block interrupts, all variables here
         * are only manipulated in task context