#include "pic_utils.h"
#include "pic_serial.h"
#include "pic_tick.h"
#include "config.h"
#include <memory.h>
#include "pic_rf_2401a.h"
Go to the source code of this file.
Data Structures | |
struct | _rf_packet_det |
Defines | |
#define | PKT_BROADCAST_ADDR 0xfffe |
#define | PKT_CONFIG_ADDR 0xfffd |
#define | PKT_DIRECT_SEND_ADDR 0xffff |
#define | PKT_FLAG_BROADCAST 2 |
#define | PKT_FLAG_NO_RESEND 0 |
#define | PKT_FLAG_RESEND 1 |
#define | PKT_PACKET_SIZE sizeof(rf_packet_det) |
#define | PKT_STATUS_CHECK_FAIL 12 |
#define | PKT_STATUS_DIRECT_SEND 6 |
#define | PKT_STATUS_I_AM_SENDER 2 |
#define | PKT_STATUS_NEED_TO_REBROADCAST 9 |
#define | PKT_STATUS_PKT_FOR_ME_BUT_SEEN 13 |
#define | PKT_STATUS_PKT_IS_ACK_FOR_ME 4 |
#define | PKT_STATUS_PKT_IS_FACK_FOR_ME 5 |
#define | PKT_STATUS_PKT_IS_FOR_ME 3 |
#define | PKT_STATUS_PREVIOUS_ROUTED_VIA_ME 7 |
#define | PKT_STATUS_QUEUED 10 |
#define | PKT_STATUS_ROUTING_FULL 8 |
#define | PKT_STATUS_SEEN_BEFORE 1 |
#define | PKT_STATUS_TX_QUEUE_FULL 11 |
#define | RF_RX_BUFFER_SIZE PKT_PACKET_SIZE |
Typedefs | |
typedef struct _rf_packet_det | rf_packet_det |
Functions | |
void | pkt_init (uns16 my_addr, uns16 last_sent_pkt_id) |
Initialise packet delivery system. | |
void | pkt_payload_rx_callback (uns16 source_addr, uns16 pkt_id, uns8 *payload) |
Called when a packet has been received. | |
uns8 | pkt_process_rf_data (uns8 *data_in) |
Process received RF data. | |
void | pkt_process_tx_queue () |
Handle queued items. | |
void | pkt_send_callback (uns16 dest_addr, uns16 pkt_id) |
void | pkt_send_failed_callback (uns16 dest_addr, uns16 pkt_id) |
uns8 | pkt_send_payload (uns16 dest_addr, uns8 *payload, uns8 resend) |
Send a payload via the packet delivery system. | |
void | pkt_send_succeeded_callback (uns16 dest_addr, uns16 pkt_id) |
Ian Harris 2008 imharris [at] gmail.com
Released under the "do whatever you like with this but if you use it'd be nice to get an email" license. Oh, and if it breaks, you get to keep both pieces.
Definition in file pic_packet.h.
#define PKT_BROADCAST_ADDR 0xfffe |
Send to anyone that will listen
Definition at line 143 of file pic_packet.h.
Referenced by pkt_process_rf_data(), and pkt_send_payload().
#define PKT_CONFIG_ADDR 0xfffd |
Magic config packet address
Definition at line 140 of file pic_packet.h.
#define PKT_DIRECT_SEND_ADDR 0xffff |
Router address for direct send only (no routing)
Definition at line 146 of file pic_packet.h.
Referenced by pkt_process_rf_data(), and pkt_send_payload().
#define PKT_FLAG_BROADCAST 2 |
Packet should be broadcast to anyone on the network
Definition at line 136 of file pic_packet.h.
#define PKT_FLAG_NO_RESEND 0 |
Packet should not be resent if it fails to reach destination
Definition at line 130 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_FLAG_RESEND 1 |
Packet should be resent if it fails to reach destination
Definition at line 133 of file pic_packet.h.
Referenced by pkt_process_tx_queue().
#define PKT_PACKET_SIZE sizeof(rf_packet_det) |
Definition at line 173 of file pic_packet.h.
Referenced by pkt_calc_check_byte(), pkt_check_check_byte(), pkt_process_rf_data(), pkt_queue_packet(), and pkt_send_packet().
#define PKT_STATUS_CHECK_FAIL 12 |
Packet is corrupt, ignoring
Definition at line 122 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_DIRECT_SEND 6 |
Packet is direct send, but not for me, ignoring
Definition at line 104 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_I_AM_SENDER 2 |
I have sent this packet, so ignoring
Definition at line 92 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_NEED_TO_REBROADCAST 9 |
Packet is not for me, but protocol states I need to rebroadcast it
Definition at line 113 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_PKT_FOR_ME_BUT_SEEN 13 |
Packet is for me but seen previously
Definition at line 125 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_PKT_IS_ACK_FOR_ME 4 |
Packet is ACK for me, but didn't find in my transmit queue
Definition at line 98 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_PKT_IS_FACK_FOR_ME 5 |
Packet is ACK for me, found in and removed from transmit queue (successful send)
Definition at line 101 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_PKT_IS_FOR_ME 3 |
#define PKT_STATUS_PREVIOUS_ROUTED_VIA_ME 7 |
Packet has my address in the router list, ignoring
Definition at line 107 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_QUEUED 10 |
Packet queued for transmition
Definition at line 116 of file pic_packet.h.
Referenced by pkt_queue_packet().
#define PKT_STATUS_ROUTING_FULL 8 |
Packet not retransmitted since its routing list is full
Definition at line 110 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_SEEN_BEFORE 1 |
Packet is already in seen list, ignoring
Definition at line 89 of file pic_packet.h.
Referenced by pkt_process_rf_data().
#define PKT_STATUS_TX_QUEUE_FULL 11 |
Packet has not been queued for transmition since my transmit queue is full
Definition at line 119 of file pic_packet.h.
Referenced by pkt_queue_packet().
#define RF_RX_BUFFER_SIZE PKT_PACKET_SIZE |
Definition at line 175 of file pic_packet.h.
typedef struct _rf_packet_det rf_packet_det |
void pkt_init | ( | uns16 | my_addr, | |
uns16 | last_sent_pkt_id | |||
) |
Initialise the packet delivery system ready for use. This routine clears the transmit queue and seen queue. If you don't store the last_sent_pkt_id (eg, in EEPROM) then set this to 0.
my_addr | The address of this system | |
last_sent_pkt_id | The last pkt_id used by this system. |
Definition at line 400 of file pic_packet.c.
References _sending_item::flag, PKT_FLAG_DELETED, pkt_my_addr, pkt_my_next_pkt_id, _seen_packet::source_addr, uns16, and uns8.
void pkt_payload_rx_callback | ( | uns16 | source_addr, | |
uns16 | pkt_id, | |||
uns8 * | payload | |||
) |
Once a packet has been received, if it has not been seen before and it is destined to this address (set using pkt_init), then this routine will be called. You must have this routine defined in your own code.
source_addr | The address of the system that sent the packet | |
pkt_id | The ID of the packet (the source_addr and pkt_id are used to uniquely identify the packet | |
payload | A pointer to PKT_PACKET_SIZE bytes received |
Referenced by pkt_process_rf_data().
uns8 pkt_process_rf_data | ( | uns8 * | data_in | ) |
Call this routine when your RF device has received a chunk of data from somewhere. The packet delivery system will handle everything including acknowledgements and ignoring packets that it has already seen.
pkt_in | A pointer to the received data. It is assumed that this will point to PKT_PACKET_SIZE bytes of data. |
Definition at line 151 of file pic_packet.c.
References _rf_packet::d, _rf_packet_det::dest_addr, end_crit_sec, _sending_item::flag, _sending_item::packet, PKT_BROADCAST_ADDR, pkt_calc_check_byte(), pkt_check_check_byte(), PKT_DIRECT_SEND_ADDR, PKT_FLAG_DELETED, PKT_FLAG_NO_RESEND, _seen_packet::pkt_id, _rf_packet_det::pkt_id, pkt_my_addr, PKT_PACKET_SIZE, pkt_payload_rx_callback(), pkt_print_packet(), pkt_queue_packet(), pkt_seen(), pkt_seen_list_last, pkt_send_payload(), pkt_send_succeeded_callback(), PKT_STATUS_CHECK_FAIL, PKT_STATUS_DIRECT_SEND, PKT_STATUS_I_AM_SENDER, PKT_STATUS_NEED_TO_REBROADCAST, PKT_STATUS_PKT_FOR_ME_BUT_SEEN, PKT_STATUS_PKT_IS_ACK_FOR_ME, PKT_STATUS_PKT_IS_FACK_FOR_ME, PKT_STATUS_PKT_IS_FOR_ME, PKT_STATUS_PREVIOUS_ROUTED_VIA_ME, PKT_STATUS_ROUTING_FULL, PKT_STATUS_SEEN_BEFORE, serial_print_int(), serial_print_str(), serial_putc(), _seen_packet::source_addr, start_crit_sec, uns16, and uns8.
void pkt_process_tx_queue | ( | ) |
Call this routine regularly (as often as possible) in your main loop in order for the packet delivery system to send any queued packets when it is appropriate to do so. It will also remove any packets from the tx queue that have been there too long.
Definition at line 331 of file pic_packet.c.
References _rf_packet::d, _rf_packet_det::dest_addr, _sending_item::flag, _sending_item::packet, _rf_packet_det::payload, pkt_calc_check_byte(), PKT_FLAG_DELETED, PKT_FLAG_RESEND, _rf_packet_det::pkt_id, pkt_print_packet(), pkt_send_callback(), pkt_send_failed_callback(), pkt_send_packet(), _rf_packet_det::r1_addr, _sending_item::sent_count, serial_print_int(), serial_print_spc(), serial_print_str(), tick_calc_diff(), tick_get_count(), _sending_item::tick_sent, uns16, and uns8.
void pkt_send_callback | ( | uns16 | dest_addr, | |
uns16 | pkt_id | |||
) |
void pkt_send_failed_callback | ( | uns16 | dest_addr, | |
uns16 | pkt_id | |||
) |
uns8 pkt_send_payload | ( | uns16 | dest_addr, | |
uns8 * | payload, | |||
uns8 | resend | |||
) |
Use this routine to send a payload of data to the destination address. The payload must point to PKT_PAYLOAD_SIZE bytes of data (as defined in your config.h). The packet will be constructed, setting destination address, sender address (set previously in pkt_init) payload, initial routing directions and the check byte calculated. It will then be placed into the tx queue and will actually be sent next time pkt_process_tx_queue is called.
dest_addr | Send payload to this address. Use address of PKT_BROADCAST_ADDR to broadcast to all listening local addresses | |
pay_load | Pointer to PKT_PAYLOAD_SIZE array of bytes | |
resend | Set to PKT_FLAG_RESEND or PKT_FLAG_NO_RESEND |
Definition at line 417 of file pic_packet.c.
References _rf_packet::d, _rf_packet_det::dest_addr, _rf_packet_det::payload, PKT_BROADCAST_ADDR, pkt_calc_check_byte(), PKT_DIRECT_SEND_ADDR, _rf_packet_det::pkt_id, pkt_my_addr, pkt_my_next_pkt_id, pkt_print_packet(), pkt_queue_packet(), _rf_packet_det::r1_addr, _rf_packet_det::r2_addr, _rf_packet_det::r3_addr, serial_print_int(), serial_print_str(), _rf_packet_det::source_addr, and uns8.
Referenced by pkt_process_rf_data().
void pkt_send_succeeded_callback | ( | uns16 | dest_addr, | |
uns16 | pkt_id | |||
) |