nes-proj/project/Giomba/sendrecv.c

60 lines
1.7 KiB
C

#include "sendrecv.h"
struct MacPkt pkt;
uint8_t net_buffer[256];
void net_init() {
nullnet_buf = net_buffer;
nullnet_set_input_callback(net_recv);
}
void net_recv(const void* data, uint16_t len, const linkaddr_t* src, const linkaddr_t* dst) {
/* discard too long packet */
if (len > 128) {
LOG_INFO("[WW] dropping too long packet %d\n", len);
return;
}
/* fill packet to pass to upper processing layer */
memcpy(pkt.data, data, len);
pkt.len = len;
pkt.src = *src;
pkt.dst = *dst;
LOG_INFO("Received %d bytes from ", len); LOG_INFO_LLADDR(src); LOG_INFO("\n");
switch ( ((msg*)data)->msg_type ) {
case ASSOCIATION_REPLY_MSG:
event = CART_EVENT_ASSOCIATED;
process_post(&cart_main_process, PROCESS_EVENT_MSG, NULL);
break;
case ASSIGNMENT_MSG:
event = CART_EVENT_ASSIGNED;
process_post(&cart_main_process, PROCESS_EVENT_MSG, NULL);
break;
case ITEM_MSG:
event = CART_EVENT_NEW_PRODUCT;
process_post(&cart_main_process, PROCESS_EVENT_MSG, NULL);
break;
case CASH_OUT_MSG:
event = CART_EVENT_CASH_OUT;
process_post(&cart_main_process, PROCESS_EVENT_MSG, NULL);
break;
case START_OF_LIST_PRODUCTS_MSG:
event = CART_EVENT_CASH_OUT_ACK;
process_post(&cart_main_process, PROCESS_EVENT_MSG, NULL);
break;
default:
LOG_INFO("[W] message type unknown\n");
break;
}
}
void net_send(const void* data, uint16_t len, const linkaddr_t* dst) {
memcpy(net_buffer, data, len);
nullnet_len = len;
NETSTACK_NETWORK.output(dst);
}