altos: Move ao_radio_cmac.c to core (it doesn't depend on hardware)
authorKeith Packard <keithp@keithp.com>
Sun, 22 Jul 2012 22:18:27 +0000 (15:18 -0700)
committerKeith Packard <keithp@keithp.com>
Sun, 22 Jul 2012 22:18:27 +0000 (15:18 -0700)
Signed-off-by: Keith Packard <keithp@keithp.com>
src/ao_radio_cmac.c [deleted file]
src/core/ao_radio_cmac.c [new file with mode: 0644]

diff --git a/src/ao_radio_cmac.c b/src/ao_radio_cmac.c
deleted file mode 100644 (file)
index e263f0d..0000000
+++ /dev/null
@@ -1,406 +0,0 @@
-/*
- * Copyright © 2011 Keith Packard <keithp@keithp.com>
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ao.h"
-
-#define AO_CMAC_KEY_LEN                AO_AES_LEN
-#define AO_CMAC_MAX_LEN                (128 - AO_CMAC_KEY_LEN)
-
-static __xdata uint8_t ao_radio_cmac_mutex;
-__pdata int16_t ao_radio_cmac_rssi;
-static __xdata uint8_t cmac_data[AO_CMAC_MAX_LEN + AO_CMAC_KEY_LEN + 2 + AO_CMAC_KEY_LEN];
-static __pdata uint8_t ao_radio_cmac_len;
-
-static uint8_t
-getnibble(void)
-{
-       int8_t  b;
-
-       b = ao_cmd_hexchar(getchar());
-       if (b < 0) {
-               ao_cmd_status = ao_cmd_lex_error;
-               return 0;
-       }
-       return (uint8_t) b;
-}
-
-static uint8_t
-getbyte(void)
-{
-       uint8_t b;
-       b = getnibble() << 4;
-       b |= getnibble();
-       return b;
-}
-       
-static uint8_t
-round_len(uint8_t len)
-{
-       uint8_t rem;
-
-       /* Make sure we transfer at least one packet, and
-        * then make sure every packet is full. Note that
-        * there is no length encoded, and that the receiver
-        * must deal with any extra bytes in the packet
-        */
-       if (len < AO_CMAC_KEY_LEN)
-               len = AO_CMAC_KEY_LEN;
-       rem = len % AO_CMAC_KEY_LEN;
-       if (rem != 0)
-               len += (AO_CMAC_KEY_LEN - rem);
-       return len;
-}
-
-/*
- * Sign and deliver the data sitting in the cmac buffer
- */
-static void
-radio_cmac_send(uint8_t len) __reentrant
-{
-       uint8_t i;
-
-       len = round_len(len);
-       /* Make sure the AES key is loaded */
-       ao_config_get();
-
-#if HAS_MONITOR
-       ao_monitor_set(0);
-#endif
-
-       ao_mutex_get(&ao_aes_mutex);
-       ao_aes_set_mode(ao_aes_mode_cbc_mac);
-       ao_aes_set_key(ao_config.aes_key);
-       ao_aes_zero_iv();
-       for (i = 0; i < len; i += AO_CMAC_KEY_LEN) {
-               if (i + AO_CMAC_KEY_LEN < len)
-                       ao_aes_run(&cmac_data[i], NULL);
-               else
-                       ao_aes_run(&cmac_data[i], &cmac_data[len]);
-       }
-       ao_mutex_put(&ao_aes_mutex);
-
-       ao_radio_send(cmac_data, len + AO_CMAC_KEY_LEN);
-}
-
-/*
- * Receive and validate an incoming packet
- */
-
-static int8_t
-radio_cmac_recv(uint8_t len, uint16_t timeout) __reentrant
-{
-       uint8_t i;
-
-       len = round_len(len);
-#if HAS_MONITOR
-       ao_monitor_set(0);
-#endif
-       if (timeout)
-               ao_alarm(timeout);
-
-       i = ao_radio_recv(cmac_data, len + AO_CMAC_KEY_LEN + 2);
-       ao_clear_alarm();
-
-       if (!i) {
-               ao_radio_cmac_rssi = 0;
-               return AO_RADIO_CMAC_TIMEOUT;
-       }
-
-       ao_radio_cmac_rssi = (int16_t) (((int8_t) cmac_data[len + AO_CMAC_KEY_LEN]) >> 1) - 74;
-       if (!(cmac_data[len + AO_CMAC_KEY_LEN +1] & PKT_APPEND_STATUS_1_CRC_OK))
-               return AO_RADIO_CMAC_CRC_ERROR;
-
-       ao_config_get();
-
-       /* Compute the packet signature
-        */
-       ao_mutex_get(&ao_aes_mutex);
-       ao_aes_set_mode(ao_aes_mode_cbc_mac);
-       ao_aes_set_key(ao_config.aes_key);
-       ao_aes_zero_iv();
-       for (i = 0; i < len; i += AO_CMAC_KEY_LEN) {
-               if (i + AO_CMAC_KEY_LEN < len)
-                       ao_aes_run(&cmac_data[i], NULL);
-               else
-                       ao_aes_run(&cmac_data[i], &cmac_data[len + AO_CMAC_KEY_LEN + 2]);
-       }
-       ao_mutex_put(&ao_aes_mutex);
-
-       /* Check the packet signature against the signature provided
-        * over the link
-        */
-        
-       if (memcmp(&cmac_data[len],
-                  &cmac_data[len + AO_CMAC_KEY_LEN + 2],
-                  AO_CMAC_KEY_LEN) != 0) {
-               return AO_RADIO_CMAC_MAC_ERROR;
-       }
-
-       return AO_RADIO_CMAC_OK;
-}
-
-int8_t
-ao_radio_cmac_send(__xdata void *packet, uint8_t len) __reentrant
-{
-       if (len > AO_CMAC_MAX_LEN)
-               return AO_RADIO_CMAC_LEN_ERROR;
-       ao_mutex_get(&ao_radio_cmac_mutex);
-       memcpy(cmac_data, packet, len);
-       radio_cmac_send(len);
-       ao_mutex_put(&ao_radio_cmac_mutex);
-       return AO_RADIO_CMAC_OK;
-}
-
-int8_t
-ao_radio_cmac_recv(__xdata void *packet, uint8_t len, uint16_t timeout) __reentrant
-{
-       uint8_t i;
-       if (len > AO_CMAC_MAX_LEN)
-               return AO_RADIO_CMAC_LEN_ERROR;
-       ao_mutex_get(&ao_radio_cmac_mutex);
-       i = radio_cmac_recv(len, timeout);
-       if (i == AO_RADIO_CMAC_OK)
-               memcpy(packet, cmac_data, len);
-       ao_mutex_put(&ao_radio_cmac_mutex);
-       return i;
-}
-
-static void
-radio_cmac_send_cmd(void) __reentrant
-{
-       uint8_t i;
-       uint8_t len;
-
-       ao_cmd_decimal();
-       if (ao_cmd_status != ao_cmd_success)
-               return;
-       len = ao_cmd_lex_i;
-       if (len > AO_CMAC_MAX_LEN) {
-               ao_cmd_status = ao_cmd_syntax_error;
-               return;
-       }
-       flush();
-       ao_mutex_get(&ao_radio_cmac_mutex);
-       len = ao_cmd_lex_i;
-       for (i = 0; i < len; i++) {
-               cmac_data[i] = getbyte();
-               if (ao_cmd_status != ao_cmd_success)
-                       return;
-       }
-       radio_cmac_send(len);
-       ao_mutex_put(&ao_radio_cmac_mutex);
-}
-
-static void
-radio_cmac_recv_cmd(void) __reentrant
-{
-       uint8_t         len, i;
-       uint16_t        timeout;
-
-       ao_cmd_decimal();
-       if (ao_cmd_status != ao_cmd_success)
-               return;
-       len = ao_cmd_lex_i;
-       ao_cmd_decimal();
-       if (ao_cmd_status != ao_cmd_success)
-               return;
-       timeout = AO_MS_TO_TICKS(ao_cmd_lex_i);
-       ao_mutex_get(&ao_radio_cmac_mutex);
-       i = radio_cmac_recv(len, timeout);
-       if (i == AO_RADIO_CMAC_OK) {
-               printf ("PACKET ");
-               for (i = 0; i < len; i++)
-                       printf("%02x", cmac_data[i]);
-               printf (" %d\n", ao_radio_cmac_rssi);
-       } else
-               printf ("ERROR %d %d\n", i, ao_radio_cmac_rssi);
-       ao_mutex_put(&ao_radio_cmac_mutex);
-}
-
-static __xdata struct ao_launch_command        command;
-static __xdata struct ao_launch_query  query;
-static pdata uint16_t  launch_serial;
-static pdata uint8_t   launch_channel;
-static pdata uint16_t  tick_offset;
-
-static void
-launch_args(void) __reentrant
-{
-       ao_cmd_decimal();
-       launch_serial = ao_cmd_lex_i;
-       ao_cmd_decimal();
-       launch_channel = ao_cmd_lex_i;
-}
-
-static int8_t
-launch_query(void)
-{
-       uint8_t i;
-       int8_t  r = AO_RADIO_CMAC_OK;
-
-       tick_offset = ao_time();
-       for (i = 0; i < 10; i++) {
-               printf ("."); flush();
-               command.tick = ao_time();
-               command.serial = launch_serial;
-               command.cmd = AO_LAUNCH_QUERY;
-               command.channel = launch_channel;
-               ao_radio_cmac_send(&command, sizeof (command));
-               r = ao_radio_cmac_recv(&query, sizeof (query), AO_MS_TO_TICKS(500));
-               if (r == AO_RADIO_CMAC_OK)
-                       break;
-       }
-       tick_offset -= query.tick;
-       printf("\n"); flush();
-       return r;
-}
-
-static void
-launch_report_cmd(void) __reentrant
-{
-       int8_t          r;
-
-       launch_args();
-       if (ao_cmd_status != ao_cmd_success)
-               return;
-       r = launch_query();
-       switch (r) {
-       case AO_RADIO_CMAC_OK:
-               if (query.valid) {
-                       switch (query.arm_status) {
-                       case ao_igniter_ready:
-                       case ao_igniter_active:
-                               printf ("Armed: ");
-                               break;
-                       default:
-                               printf("Disarmed: ");
-                       }
-                       switch (query.igniter_status) {
-                       default:
-                               printf("unknown\n");
-                               break;
-                       case ao_igniter_ready:
-                               printf("igniter good\n");
-                               break;
-                       case ao_igniter_open:
-                               printf("igniter bad\n");
-                               break;
-                       }
-               } else {
-                       printf("Invalid channel %d\n", launch_channel);
-               }
-               printf("Rssi: %d\n", ao_radio_cmac_rssi);
-               break;
-       default:
-               printf("Error %d\n", r);
-               break;
-       }
-}
-
-static void
-launch_arm(void) __reentrant
-{
-       command.tick = ao_time() - tick_offset;
-       command.serial = launch_serial;
-       command.cmd = AO_LAUNCH_ARM;
-       command.channel = launch_channel;
-       ao_radio_cmac_send(&command, sizeof (command));
-}
-
-static void
-launch_ignite(void) __reentrant
-{
-       command.tick = ao_time() - tick_offset;
-       command.serial = launch_serial;
-       command.cmd = AO_LAUNCH_FIRE;
-       command.channel = 0;
-       ao_radio_cmac_send(&command, sizeof (command));
-}
-
-static void
-launch_fire_cmd(void) __reentrant
-{
-       static __xdata struct ao_launch_command command;
-       uint8_t         secs;
-       uint8_t         i;
-       int8_t          r;
-
-       launch_args();
-       ao_cmd_decimal();
-       secs = ao_cmd_lex_i;
-       if (ao_cmd_status != ao_cmd_success)
-               return;
-       r = launch_query();
-       if (r != AO_RADIO_CMAC_OK) {
-               printf("query failed %d\n", r);
-               return;
-       }
-
-       for (i = 0; i < 4; i++) {
-               printf("arm %d\n", i); flush();
-               launch_arm();
-       }
-
-       secs = secs * 10 - 5;
-       if (secs > 100)
-               secs = 100;
-       for (i = 0; i < secs; i++) {
-               printf("fire %d\n", i); flush();
-               launch_ignite();
-               ao_delay(AO_MS_TO_TICKS(100));
-       }
-}
-
-static void
-launch_arm_cmd(void) __reentrant
-{
-       uint8_t i;
-       int8_t  r;
-       launch_args();
-       r = launch_query();
-       if (r != AO_RADIO_CMAC_OK) {
-               printf("query failed %d\n", r);
-               return;
-       }
-       for (i = 0; i < 4; i++)
-               launch_arm();
-}
-
-static void
-launch_ignite_cmd(void) __reentrant
-{
-       uint8_t i;
-       launch_args();
-       for (i = 0; i < 4; i++)
-               launch_ignite();
-}
-
-static __code struct ao_cmds ao_radio_cmac_cmds[] = {
-       { radio_cmac_send_cmd,  "s <length>\0Send AES-CMAC packet. Bytes to send follow on next line" },
-       { radio_cmac_recv_cmd,  "S <length> <timeout>\0Receive AES-CMAC packet. Timeout in ms" },
-       { launch_report_cmd,    "l <serial> <channel>\0Get remote launch status" },
-       { launch_fire_cmd,      "f <serial> <channel> <secs>\0Fire remote igniter" },
-       { launch_arm_cmd,       "a <serial> <channel>\0Arm remote igniter" },
-       { launch_ignite_cmd,    "i <serial> <channel>\0Pulse remote igniter" },
-       { 0, NULL },
-};
-
-void
-ao_radio_cmac_init(void)
-{
-       ao_cmd_register(&ao_radio_cmac_cmds[0]);
-}
diff --git a/src/core/ao_radio_cmac.c b/src/core/ao_radio_cmac.c
new file mode 100644 (file)
index 0000000..e263f0d
--- /dev/null
@@ -0,0 +1,406 @@
+/*
+ * Copyright © 2011 Keith Packard <keithp@keithp.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "ao.h"
+
+#define AO_CMAC_KEY_LEN                AO_AES_LEN
+#define AO_CMAC_MAX_LEN                (128 - AO_CMAC_KEY_LEN)
+
+static __xdata uint8_t ao_radio_cmac_mutex;
+__pdata int16_t ao_radio_cmac_rssi;
+static __xdata uint8_t cmac_data[AO_CMAC_MAX_LEN + AO_CMAC_KEY_LEN + 2 + AO_CMAC_KEY_LEN];
+static __pdata uint8_t ao_radio_cmac_len;
+
+static uint8_t
+getnibble(void)
+{
+       int8_t  b;
+
+       b = ao_cmd_hexchar(getchar());
+       if (b < 0) {
+               ao_cmd_status = ao_cmd_lex_error;
+               return 0;
+       }
+       return (uint8_t) b;
+}
+
+static uint8_t
+getbyte(void)
+{
+       uint8_t b;
+       b = getnibble() << 4;
+       b |= getnibble();
+       return b;
+}
+       
+static uint8_t
+round_len(uint8_t len)
+{
+       uint8_t rem;
+
+       /* Make sure we transfer at least one packet, and
+        * then make sure every packet is full. Note that
+        * there is no length encoded, and that the receiver
+        * must deal with any extra bytes in the packet
+        */
+       if (len < AO_CMAC_KEY_LEN)
+               len = AO_CMAC_KEY_LEN;
+       rem = len % AO_CMAC_KEY_LEN;
+       if (rem != 0)
+               len += (AO_CMAC_KEY_LEN - rem);
+       return len;
+}
+
+/*
+ * Sign and deliver the data sitting in the cmac buffer
+ */
+static void
+radio_cmac_send(uint8_t len) __reentrant
+{
+       uint8_t i;
+
+       len = round_len(len);
+       /* Make sure the AES key is loaded */
+       ao_config_get();
+
+#if HAS_MONITOR
+       ao_monitor_set(0);
+#endif
+
+       ao_mutex_get(&ao_aes_mutex);
+       ao_aes_set_mode(ao_aes_mode_cbc_mac);
+       ao_aes_set_key(ao_config.aes_key);
+       ao_aes_zero_iv();
+       for (i = 0; i < len; i += AO_CMAC_KEY_LEN) {
+               if (i + AO_CMAC_KEY_LEN < len)
+                       ao_aes_run(&cmac_data[i], NULL);
+               else
+                       ao_aes_run(&cmac_data[i], &cmac_data[len]);
+       }
+       ao_mutex_put(&ao_aes_mutex);
+
+       ao_radio_send(cmac_data, len + AO_CMAC_KEY_LEN);
+}
+
+/*
+ * Receive and validate an incoming packet
+ */
+
+static int8_t
+radio_cmac_recv(uint8_t len, uint16_t timeout) __reentrant
+{
+       uint8_t i;
+
+       len = round_len(len);
+#if HAS_MONITOR
+       ao_monitor_set(0);
+#endif
+       if (timeout)
+               ao_alarm(timeout);
+
+       i = ao_radio_recv(cmac_data, len + AO_CMAC_KEY_LEN + 2);
+       ao_clear_alarm();
+
+       if (!i) {
+               ao_radio_cmac_rssi = 0;
+               return AO_RADIO_CMAC_TIMEOUT;
+       }
+
+       ao_radio_cmac_rssi = (int16_t) (((int8_t) cmac_data[len + AO_CMAC_KEY_LEN]) >> 1) - 74;
+       if (!(cmac_data[len + AO_CMAC_KEY_LEN +1] & PKT_APPEND_STATUS_1_CRC_OK))
+               return AO_RADIO_CMAC_CRC_ERROR;
+
+       ao_config_get();
+
+       /* Compute the packet signature
+        */
+       ao_mutex_get(&ao_aes_mutex);
+       ao_aes_set_mode(ao_aes_mode_cbc_mac);
+       ao_aes_set_key(ao_config.aes_key);
+       ao_aes_zero_iv();
+       for (i = 0; i < len; i += AO_CMAC_KEY_LEN) {
+               if (i + AO_CMAC_KEY_LEN < len)
+                       ao_aes_run(&cmac_data[i], NULL);
+               else
+                       ao_aes_run(&cmac_data[i], &cmac_data[len + AO_CMAC_KEY_LEN + 2]);
+       }
+       ao_mutex_put(&ao_aes_mutex);
+
+       /* Check the packet signature against the signature provided
+        * over the link
+        */
+        
+       if (memcmp(&cmac_data[len],
+                  &cmac_data[len + AO_CMAC_KEY_LEN + 2],
+                  AO_CMAC_KEY_LEN) != 0) {
+               return AO_RADIO_CMAC_MAC_ERROR;
+       }
+
+       return AO_RADIO_CMAC_OK;
+}
+
+int8_t
+ao_radio_cmac_send(__xdata void *packet, uint8_t len) __reentrant
+{
+       if (len > AO_CMAC_MAX_LEN)
+               return AO_RADIO_CMAC_LEN_ERROR;
+       ao_mutex_get(&ao_radio_cmac_mutex);
+       memcpy(cmac_data, packet, len);
+       radio_cmac_send(len);
+       ao_mutex_put(&ao_radio_cmac_mutex);
+       return AO_RADIO_CMAC_OK;
+}
+
+int8_t
+ao_radio_cmac_recv(__xdata void *packet, uint8_t len, uint16_t timeout) __reentrant
+{
+       uint8_t i;
+       if (len > AO_CMAC_MAX_LEN)
+               return AO_RADIO_CMAC_LEN_ERROR;
+       ao_mutex_get(&ao_radio_cmac_mutex);
+       i = radio_cmac_recv(len, timeout);
+       if (i == AO_RADIO_CMAC_OK)
+               memcpy(packet, cmac_data, len);
+       ao_mutex_put(&ao_radio_cmac_mutex);
+       return i;
+}
+
+static void
+radio_cmac_send_cmd(void) __reentrant
+{
+       uint8_t i;
+       uint8_t len;
+
+       ao_cmd_decimal();
+       if (ao_cmd_status != ao_cmd_success)
+               return;
+       len = ao_cmd_lex_i;
+       if (len > AO_CMAC_MAX_LEN) {
+               ao_cmd_status = ao_cmd_syntax_error;
+               return;
+       }
+       flush();
+       ao_mutex_get(&ao_radio_cmac_mutex);
+       len = ao_cmd_lex_i;
+       for (i = 0; i < len; i++) {
+               cmac_data[i] = getbyte();
+               if (ao_cmd_status != ao_cmd_success)
+                       return;
+       }
+       radio_cmac_send(len);
+       ao_mutex_put(&ao_radio_cmac_mutex);
+}
+
+static void
+radio_cmac_recv_cmd(void) __reentrant
+{
+       uint8_t         len, i;
+       uint16_t        timeout;
+
+       ao_cmd_decimal();
+       if (ao_cmd_status != ao_cmd_success)
+               return;
+       len = ao_cmd_lex_i;
+       ao_cmd_decimal();
+       if (ao_cmd_status != ao_cmd_success)
+               return;
+       timeout = AO_MS_TO_TICKS(ao_cmd_lex_i);
+       ao_mutex_get(&ao_radio_cmac_mutex);
+       i = radio_cmac_recv(len, timeout);
+       if (i == AO_RADIO_CMAC_OK) {
+               printf ("PACKET ");
+               for (i = 0; i < len; i++)
+                       printf("%02x", cmac_data[i]);
+               printf (" %d\n", ao_radio_cmac_rssi);
+       } else
+               printf ("ERROR %d %d\n", i, ao_radio_cmac_rssi);
+       ao_mutex_put(&ao_radio_cmac_mutex);
+}
+
+static __xdata struct ao_launch_command        command;
+static __xdata struct ao_launch_query  query;
+static pdata uint16_t  launch_serial;
+static pdata uint8_t   launch_channel;
+static pdata uint16_t  tick_offset;
+
+static void
+launch_args(void) __reentrant
+{
+       ao_cmd_decimal();
+       launch_serial = ao_cmd_lex_i;
+       ao_cmd_decimal();
+       launch_channel = ao_cmd_lex_i;
+}
+
+static int8_t
+launch_query(void)
+{
+       uint8_t i;
+       int8_t  r = AO_RADIO_CMAC_OK;
+
+       tick_offset = ao_time();
+       for (i = 0; i < 10; i++) {
+               printf ("."); flush();
+               command.tick = ao_time();
+               command.serial = launch_serial;
+               command.cmd = AO_LAUNCH_QUERY;
+               command.channel = launch_channel;
+               ao_radio_cmac_send(&command, sizeof (command));
+               r = ao_radio_cmac_recv(&query, sizeof (query), AO_MS_TO_TICKS(500));
+               if (r == AO_RADIO_CMAC_OK)
+                       break;
+       }
+       tick_offset -= query.tick;
+       printf("\n"); flush();
+       return r;
+}
+
+static void
+launch_report_cmd(void) __reentrant
+{
+       int8_t          r;
+
+       launch_args();
+       if (ao_cmd_status != ao_cmd_success)
+               return;
+       r = launch_query();
+       switch (r) {
+       case AO_RADIO_CMAC_OK:
+               if (query.valid) {
+                       switch (query.arm_status) {
+                       case ao_igniter_ready:
+                       case ao_igniter_active:
+                               printf ("Armed: ");
+                               break;
+                       default:
+                               printf("Disarmed: ");
+                       }
+                       switch (query.igniter_status) {
+                       default:
+                               printf("unknown\n");
+                               break;
+                       case ao_igniter_ready:
+                               printf("igniter good\n");
+                               break;
+                       case ao_igniter_open:
+                               printf("igniter bad\n");
+                               break;
+                       }
+               } else {
+                       printf("Invalid channel %d\n", launch_channel);
+               }
+               printf("Rssi: %d\n", ao_radio_cmac_rssi);
+               break;
+       default:
+               printf("Error %d\n", r);
+               break;
+       }
+}
+
+static void
+launch_arm(void) __reentrant
+{
+       command.tick = ao_time() - tick_offset;
+       command.serial = launch_serial;
+       command.cmd = AO_LAUNCH_ARM;
+       command.channel = launch_channel;
+       ao_radio_cmac_send(&command, sizeof (command));
+}
+
+static void
+launch_ignite(void) __reentrant
+{
+       command.tick = ao_time() - tick_offset;
+       command.serial = launch_serial;
+       command.cmd = AO_LAUNCH_FIRE;
+       command.channel = 0;
+       ao_radio_cmac_send(&command, sizeof (command));
+}
+
+static void
+launch_fire_cmd(void) __reentrant
+{
+       static __xdata struct ao_launch_command command;
+       uint8_t         secs;
+       uint8_t         i;
+       int8_t          r;
+
+       launch_args();
+       ao_cmd_decimal();
+       secs = ao_cmd_lex_i;
+       if (ao_cmd_status != ao_cmd_success)
+               return;
+       r = launch_query();
+       if (r != AO_RADIO_CMAC_OK) {
+               printf("query failed %d\n", r);
+               return;
+       }
+
+       for (i = 0; i < 4; i++) {
+               printf("arm %d\n", i); flush();
+               launch_arm();
+       }
+
+       secs = secs * 10 - 5;
+       if (secs > 100)
+               secs = 100;
+       for (i = 0; i < secs; i++) {
+               printf("fire %d\n", i); flush();
+               launch_ignite();
+               ao_delay(AO_MS_TO_TICKS(100));
+       }
+}
+
+static void
+launch_arm_cmd(void) __reentrant
+{
+       uint8_t i;
+       int8_t  r;
+       launch_args();
+       r = launch_query();
+       if (r != AO_RADIO_CMAC_OK) {
+               printf("query failed %d\n", r);
+               return;
+       }
+       for (i = 0; i < 4; i++)
+               launch_arm();
+}
+
+static void
+launch_ignite_cmd(void) __reentrant
+{
+       uint8_t i;
+       launch_args();
+       for (i = 0; i < 4; i++)
+               launch_ignite();
+}
+
+static __code struct ao_cmds ao_radio_cmac_cmds[] = {
+       { radio_cmac_send_cmd,  "s <length>\0Send AES-CMAC packet. Bytes to send follow on next line" },
+       { radio_cmac_recv_cmd,  "S <length> <timeout>\0Receive AES-CMAC packet. Timeout in ms" },
+       { launch_report_cmd,    "l <serial> <channel>\0Get remote launch status" },
+       { launch_fire_cmd,      "f <serial> <channel> <secs>\0Fire remote igniter" },
+       { launch_arm_cmd,       "a <serial> <channel>\0Arm remote igniter" },
+       { launch_ignite_cmd,    "i <serial> <channel>\0Pulse remote igniter" },
+       { 0, NULL },
+};
+
+void
+ao_radio_cmac_init(void)
+{
+       ao_cmd_register(&ao_radio_cmac_cmds[0]);
+}