Revision 668
Updated port of wireless library to bay boards.
wireless.c | ||
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51 | 51 |
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52 | 52 |
/*Function Prototypes*/ |
53 | 53 |
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void wl_do_timeout(void); |
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static void wl_do_timeout(void);
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55 | 55 |
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56 | 56 |
//Note: the actual frame sent has group as the first four bits and |
57 | 57 |
//frame as the last four. |
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void wl_send_packet(char group, char type, char* data, int len, |
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int dest, char options, char frame); |
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static int wl_send_packet(char group, char type, char* data, int len, int dest, char options, char frame); |
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60 | 59 |
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61 | 60 |
/*Data Members*/ |
62 | 61 |
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63 | 62 |
//used to store incoming and outgoing packets |
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unsigned char wl_buf[128]; |
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static unsigned char wl_buf[128];
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65 | 64 |
//1 if we have timed out since we last checked, 0 otherwise. |
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int wl_timeout = 0; |
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static int wl_timeout = 0;
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67 | 66 |
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PacketGroupHandler* wl_packet_groups[WL_MAX_PACKET_GROUPS]; |
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static PacketGroupHandler* wl_packet_groups[WL_MAX_PACKET_GROUPS];
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69 | 68 |
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#ifndef ROBOT |
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//called when we time out, or receive interrupt |
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void sig_handler(int signo) |
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static void sig_handler(int signo)
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{ |
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switch (signo) |
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{ |
... | ... | |
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#else |
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//called when the timer ticks |
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void timer_handler(void) |
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static void timer_handler(void)
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{ |
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wl_timeout = 1; |
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} |
... | ... | |
97 | 96 |
/** |
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* Initializes the wireless library. Must be called before any |
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* other function. |
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* |
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* @param wl_port File descriptor for wireless port, or NULL for default. |
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**/ |
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int wl_init() |
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{ |
... | ... | |
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wl_packet_groups[i] = NULL; |
106 | 107 |
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if (xbee_lib_init() == -1) { |
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return -1;
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return -1;
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109 | 110 |
} |
110 | 111 |
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//begin timeout timer |
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#ifdef ROBOT
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#ifdef FIREFLY
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#ifdef ROBOT |
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#ifdef FIREFLY |
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rtc_init(PRESCALE_DIV_256, 32, &timer_handler); |
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#else
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#else |
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rtc_init(HALF_SECOND, &timer_handler); |
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#endif
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#else
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#endif |
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#else |
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119 | 120 |
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//create our timer |
121 | 122 |
struct itimerval timer_val; |
... | ... | |
141 | 142 |
sigemptyset(&wl_sig_act.sa_mask); |
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sigaction(SIGALRM, &wl_sig_act, 0); |
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sigaction(SIGINT, &wl_sig_act, 0); |
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#endif
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#endif |
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145 | 146 |
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return 0; |
147 | 148 |
} |
... | ... | |
152 | 153 |
void wl_terminate() |
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{ |
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int i; |
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for (i = 0; i < WL_MAX_PACKET_GROUPS; i++) |
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for (i = 0; i < WL_MAX_PACKET_GROUPS; i++) {
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156 | 157 |
if (wl_packet_groups[i] != NULL && |
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wl_packet_groups[i]->unregister != NULL) |
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wl_packet_groups[i]->unregister != NULL) {
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wl_packet_groups[i]->unregister(); |
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} |
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} |
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xbee_terminate(); |
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} |
... | ... | |
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* |
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* @see wl_get_pan |
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**/ |
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void wl_set_pan(int pan)
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int wl_set_pan(int pan)
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{ |
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xbee_set_pan_id(pan); |
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return xbee_set_pan_id(pan);
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} |
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/** |
... | ... | |
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* |
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* @see wl_get_channel |
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**/ |
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void wl_set_channel(int channel)
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int wl_set_channel(int channel)
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{ |
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xbee_set_channel(channel); |
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return xbee_set_channel(channel);
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197 | 200 |
} |
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/** |
... | ... | |
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* @param dest the 16-bit address of the XBee to send the packet to |
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* @param frame the frame number to see with a TX_STATUS response |
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**/ |
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void wl_send_robot_to_robot_global_packet(char group, char type, |
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char* data, int len, int dest, char frame) |
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int wl_send_robot_to_robot_global_packet(char group, char type, char* data, int len, int dest, char frame) |
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{ |
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wl_send_packet(group, type, data, len, dest, |
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XBEE_OPTIONS_BROADCAST_ALL_PANS, frame); |
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return wl_send_packet(group, type, data, len, dest, XBEE_OPTIONS_BROADCAST_ALL_PANS, frame); |
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} |
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/** |
... | ... | |
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* @param dest the 16-bit address of the XBee to send the packet to |
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* @param frame the frame number to see with a TX_STATUS response |
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**/ |
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void wl_send_robot_to_robot_packet(char group, char type, |
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char* data, int len, int dest, char frame) |
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int wl_send_robot_to_robot_packet(char group, char type, char* data, int len, int dest, char frame) |
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{ |
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wl_send_packet(group, type, data, len, dest, XBEE_OPTIONS_NONE, |
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frame); |
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return wl_send_packet(group, type, data, len, dest, XBEE_OPTIONS_NONE, frame); |
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253 | 252 |
} |
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255 | 254 |
/** |
... | ... | |
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* @param len the packet length in bytes |
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* @param frame the frame number to see with a TX_STATUS response |
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**/ |
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void wl_send_global_packet(char group, char type, |
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char* data, int len, char frame) |
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int wl_send_global_packet(char group, char type, char* data, int len, char frame) |
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{ |
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wl_send_packet(group, type, data, len, XBEE_BROADCAST, |
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XBEE_OPTIONS_BROADCAST_ALL_PANS, frame); |
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return wl_send_packet(group, type, data, len, XBEE_BROADCAST, XBEE_OPTIONS_BROADCAST_ALL_PANS, frame); |
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269 | 266 |
} |
270 | 267 |
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271 | 268 |
/** |
... | ... | |
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* @param len the packet length in bytes |
278 | 275 |
* @param frame the frame number to see with a TX_STATUS response |
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**/ |
280 |
void wl_send_pan_packet(char group, char type, |
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char* data, int len, char frame) |
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void wl_send_pan_packet(char group, char type, char* data, int len, char frame) |
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282 | 278 |
{ |
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wl_send_packet(group, type, data, len, XBEE_BROADCAST, |
284 | 280 |
XBEE_OPTIONS_NONE, frame); |
... | ... | |
295 | 291 |
* @param options the options for sending the packet |
296 | 292 |
* @param frame the frame number to see with a TX_STATUS response |
297 | 293 |
**/ |
298 |
void wl_send_packet(char group, char type, char* data, int len, |
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int dest, char options, char frame) |
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int wl_send_packet(char group, char type, char* data, int len, int dest, char options, char frame) |
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300 | 295 |
{ |
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char buf[128]; |
302 | 297 |
int i; |
303 | 298 |
if (frame != 0) |
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frame = (frame & 0x0F) | ((group & 0x0F) << 4); |
300 |
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buf[0] = group; |
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buf[1] = type; |
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for (i = 0; i < len; i++) |
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buf[2 + i] = data[i]; |
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xbee_send_packet(buf, len + 2, dest, options, frame); |
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return xbee_send_packet(buf, len + 2, dest, options, frame); |
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310 | 307 |
} |
311 | 308 |
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312 | 309 |
/** |
... | ... | |
373 | 370 |
} |
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int len = xbee_get_packet(wl_buf); |
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if (len < 0)//no packet received
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if (len == -1)
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return; |
378 | 375 |
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379 | 376 |
if (wl_buf[0] == XBEE_TX_STATUS) |
... | ... | |
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int group = (int)(wl_buf[1] >> 4); |
390 | 387 |
int success = 0; |
391 | 388 |
if (wl_buf[2] == 0) |
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{ |
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success = 1; |
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} |
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393 | 392 |
else |
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{ |
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WL_DEBUG_PRINT("No response received.\r\n"); |
... | ... | |
403 | 402 |
} |
404 | 403 |
} |
405 | 404 |
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if (wl_packet_groups[group] != NULL && |
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wl_packet_groups[group]->handle_response != NULL) |
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wl_packet_groups[group]->handle_response( |
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(int)wl_buf[1] & 0x0F, success); |
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return; |
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if (wl_packet_groups[group] != NULL && wl_packet_groups[group]->handle_response != NULL) |
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wl_packet_groups[group]->handle_response((int)wl_buf[1] & 0x0F, success); |
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} |
412 |
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if (wl_buf[0] == XBEE_RX) |
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else if (wl_buf[0] == XBEE_RX) |
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414 | 409 |
{ |
415 | 410 |
if (len < 7) |
416 | 411 |
{ |
... | ... | |
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int type = wl_buf[6]; |
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int packetLen = len - 7; |
433 | 428 |
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if (wl_packet_groups[group] != NULL |
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&& wl_packet_groups[group]->handle_receive != NULL) |
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wl_packet_groups[group]->handle_receive(type, source, |
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wl_buf + 7, packetLen); |
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return; |
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if (wl_packet_groups[group] != NULL && wl_packet_groups[group]->handle_receive != NULL) { |
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wl_packet_groups[group]->handle_receive(type, source, wl_buf + 7, packetLen); |
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} |
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439 | 432 |
} |
440 |
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WL_DEBUG_PRINT("Unexpected packet received from XBee.\r\n"); |
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return; |
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else |
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{ |
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WL_DEBUG_PRINT("Unexpected packet received from XBee.\r\n"); |
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} |
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443 | 437 |
} |
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