FreeCalypso > hg > freecalypso-tools
view rvinterf/asyncshell/at.c @ 736:7d1df6d831e4
libpwon: added -Pdtr and -Prts support for DUART28C
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 16 Sep 2020 03:40:51 +0000 |
parents | 10f4062e049b |
children |
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/* * Functions for the AT-over-RVTMUX interface */ #include <sys/types.h> #include <sys/errno.h> #include <stdio.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include <unistd.h> #include "pktmux.h" #include "limits.h" #include "exitcodes.h" extern char *rvinterf_ttyport; extern u_char rvi_msg[]; extern int rvi_msg_len; extern int oneshot_nowait; extern int sock; send_string_to_ati(str) char *str; { unsigned len; u_char sendpkt[MAX_PKT_TO_TARGET+1]; len = strlen(str); if (len + 1 > MAX_PKT_TO_TARGET) { printf("error: max pkt to target limit exceeded\n"); return(ERROR_USAGE); } /* fill out the packet */ sendpkt[0] = RVT_AT_HEADER; strcpy(sendpkt + 1, str); /* send it! */ send_pkt_to_target(sendpkt, len + 1); return(0); } send_unterm_string_to_ati(str) char *str; { unsigned len; u_char sendpkt[MAX_PKT_TO_TARGET+1]; len = strlen(str); if (len + 2 > MAX_PKT_TO_TARGET) { printf("error: max pkt to target limit exceeded\n"); return(ERROR_USAGE); } /* fill out the packet */ sendpkt[0] = RVT_AT_HEADER; sendpkt[1] = 0x01; strcpy(sendpkt + 2, str); /* send it! */ send_pkt_to_target(sendpkt, len + 2); return(0); } void cmd_sendat(arg) char *arg; { while (isspace(*arg)) arg++; if (!*arg) { printf("error: missing string argument\n"); return; } ati_rx_control(1); send_string_to_ati(arg); } void cmd_unterm(arg) char *arg; { while (isspace(*arg)) arg++; if (!*arg) { printf("error: missing string argument\n"); return; } ati_rx_control(1); send_unterm_string_to_ati(arg); } oneshot_at_command(cmd) char *cmd; { fd_set fds; int rc; if (!oneshot_nowait) { if (rvinterf_ttyport) usleep(30000); init(); /* to catch the response properly */ ati_rx_control(1); } rc = send_string_to_ati(cmd); if (rc) exit(rc); if (oneshot_nowait) exit(0); /* wait for response */ for (;;) { FD_ZERO(&fds); FD_SET(sock, &fds); rc = select(sock+1, &fds, 0, 0, 0); if (rc < 0) { if (errno == EINTR) continue; perror("select"); exit(ERROR_UNIX); } if (FD_ISSET(sock, &fds)) handle_rvinterf_input(); } } cmd_str_oneshot(argc, argv) char **argv; { return oneshot_at_command(argv[1]); } cmd_unterm_oneshot(argc, argv) char **argv; { return send_unterm_string_to_ati(argv[1]); } void oneshot_at_check_response() { if (rvi_msg_len == 4 && !strncmp(rvi_msg + 2, "OK", 2)) exit(0); if (rvi_msg_len == 4 && !strncmp(rvi_msg + 2, "> ", 2)) exit(0); if (rvi_msg_len == 7 && !strncmp(rvi_msg + 2, "ERROR", 5)) exit(ERROR_TARGET); if (rvi_msg_len == 6 && !strncmp(rvi_msg + 2, "BUSY", 4)) exit(ERROR_TARGET); if (rvi_msg_len == 12 && !strncmp(rvi_msg + 2, "NO CARRIER", 10)) exit(ERROR_TARGET); if (rvi_msg_len >= 12 && !strncmp(rvi_msg + 2, "+CME ERROR", 10)) exit(ERROR_TARGET); if (rvi_msg_len >= 12 && !strncmp(rvi_msg + 2, "+CMS ERROR", 10)) exit(ERROR_TARGET); }