forked from M-Labs/artiq
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
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#include <generated/csr.h>
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#ifdef CSR_ETHMAC_BASE
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#include <netif/etharp.h>
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#include <lwip/init.h>
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#include <lwip/memp.h>
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#include <lwip/ip4_addr.h>
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#include <lwip/ip4.h>
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#include <lwip/netif.h>
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#include <lwip/sys.h>
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#include <lwip/udp.h>
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#include <lwip/timers.h>
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#include "log.h"
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#include "moninj.h"
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enum {
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MONINJ_REQ_MONITOR = 1
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};
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static struct udp_pcb *listen_pcb;
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struct monitor_reply {
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long long int ttl_levels;
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long long int ttl_oes;
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};
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static void moninj_monitor(const ip_addr_t *addr, u16_t port)
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{
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struct monitor_reply reply;
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int i;
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struct pbuf *reply_p;
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reply.ttl_levels = 0;
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reply.ttl_oes = 0;
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for(i=0;i<RTIO_TTL_COUNT;i++) {
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rtio_mon_chan_sel_write(i);
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rtio_mon_probe_sel_write(0);
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if(rtio_mon_probe_value_read())
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reply.ttl_levels |= 1LL << i;
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rtio_mon_probe_sel_write(1);
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if(rtio_mon_probe_value_read())
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reply.ttl_oes |= 1LL << i;
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}
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reply_p = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct monitor_reply), PBUF_RAM);
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if(!reply_p) {
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log("Failed to allocate pbuf for monitor reply");
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return;
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}
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memcpy(reply_p->payload, &reply, sizeof(struct monitor_reply));
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udp_sendto(listen_pcb, reply_p, addr, port);
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pbuf_free(reply_p);
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}
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static void moninj_recv(void *arg, struct udp_pcb *upcb, struct pbuf *req,
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const ip_addr_t *addr, u16_t port)
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{
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if(req->len >= 1) {
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switch(*(char *)req->payload) {
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case MONINJ_REQ_MONITOR:
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moninj_monitor(addr, port);
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break;
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default:
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break;
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}
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}
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pbuf_free(req); /* beware: addr may point into the req pbuf */
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}
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void moninj_init(void)
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{
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listen_pcb = udp_new();
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if(!listen_pcb) {
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log("Failed to create UDP listening PCB");
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return;
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}
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udp_bind(listen_pcb, IP_ADDR_ANY, 3250);
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udp_recv(listen_pcb, moninj_recv, NULL);
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}
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#endif /* CSR_ETHMAC_BASE */
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