FreeCalypso > hg > freecalypso-tools

annotate rvinterf/libasync/interf.c @ 1014:961efadd530a default tip

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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents 09b4fd9b3827
children
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1 /*
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2 * This module implements the link to rvinterf.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9 #include "localsock.h"
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10 #include "exitcodes.h"
0
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11
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12 extern int sock;
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13
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14 u_char rvi_msg[LOCALSOCK_MAX_MSG];
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15 int rvi_msg_len;
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16
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17 static int rx_state, rx_left;
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18 static u_char *rx_ptr;
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19
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20 void
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21 localsock_prep_for_length_rx()
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22 {
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23 rx_state = 0;
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24 rx_ptr = rvi_msg;
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25 rx_left = 2;
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26 }
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27
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28 static void
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29 prep_for_message_rx()
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30 {
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31 rx_state = 1;
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32 rx_ptr = rvi_msg;
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33 rx_left = rvi_msg_len;
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34 }
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35
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36 void
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37 process_msg_from_rvinterf()
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38 {
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39 switch (rvi_msg[0]) {
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40 case RVI2CLI_PKT_FROM_TARGET:
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41 process_pkt_from_target();
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42 return;
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43 case RVI2CLI_LOCAL_CMD_RESP:
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44 if (rvi_msg_len < 2)
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45 goto bad;
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46 if (rvi_msg[1] == '+')
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47 return;
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48 tty_cleanup();
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49 fprintf(stderr, "Error from rvinterf: %.*s\n", rvi_msg_len - 1,
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50 rvi_msg + 1);
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51 exit(ERROR_RVINTERF);
0
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52 default:
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53 bad:
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54 tty_cleanup();
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55 fprintf(stderr,
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56 "Error: unexpected message type %02X from rvinterf\n",
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57 rvi_msg[0]);
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58 exit(ERROR_RVINTERF);
0
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59 }
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60 }
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61
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62 void
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63 handle_rvinterf_input()
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64 {
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65 int cc;
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66
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67 cc = read(sock, rx_ptr, rx_left);
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68 if (cc <= 0) {
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69 tty_cleanup();
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70 perror("read from rvinterf socket");
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71 exit(ERROR_RVINTERF);
0
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72 }
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73 rx_ptr += cc;
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74 rx_left -= cc;
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75 if (rx_left)
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76 return;
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77 /* got the thing, process it */
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78 if (rx_state) {
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79 process_msg_from_rvinterf();
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80 localsock_prep_for_length_rx();
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81 } else {
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82 rvi_msg_len = rvi_msg[0] << 8 | rvi_msg[1];
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83 if (rvi_msg_len < 1 || rvi_msg_len > LOCALSOCK_MAX_MSG) {
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84 tty_cleanup();
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85 fprintf(stderr,
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86 "Invalid length from rvinterf: %02X%02X\n",
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87 rvi_msg[0], rvi_msg[1]);
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88 exit(ERROR_RVINTERF);
0
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89 }
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90 prep_for_message_rx();
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91 }
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92 }
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93
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94 void
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95 send_pkt_to_target(pkt, pktlen)
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96 u_char *pkt;
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97 {
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98 u_char hdrbuf[3];
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99 int len1;
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100
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101 len1 = pktlen + 1;
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102 hdrbuf[0] = len1 >> 8;
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103 hdrbuf[1] = len1 & 0xFF;
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104 hdrbuf[2] = CLI2RVI_PKT_TO_TARGET;
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105 write(sock, hdrbuf, 3);
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106 write(sock, pkt, pktlen);
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107 }