FreeCalypso > hg > freecalypso-tools

annotate rvinterf/libasync/ttymagic.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 /*
63
09b4fd9b3827 rvinterf/libasync: use the newly adopted exit code convention
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2 * This module contains the tty "magic" code for fc-shell and fc-tmsh.
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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 <string.h>
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8 #include <strings.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11 #include <termios.h>
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12
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13 extern int ttyhacks;
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14
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15 struct termios orig_termios, our_termios;
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16
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17 #define MAX_USER_CMD 78
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18 char usercmd[MAX_USER_CMD+1];
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19 int usercmd_len;
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20
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21 void
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22 tty_init()
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23 {
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24 if (!ttyhacks)
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25 return;
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26 tcgetattr(0, &orig_termios);
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27 bcopy(&orig_termios, &our_termios, sizeof(struct termios));
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28 our_termios.c_oflag &= ~(OCRNL | ONOCR | ONLRET);
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29 our_termios.c_lflag &= ~(ICANON | ECHO);
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30 our_termios.c_cc[VMIN] = 1;
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31 our_termios.c_cc[VTIME] = 0;
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32 tcsetattr(0, TCSAFLUSH, &our_termios);
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33 putchar('>');
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34 fflush(stdout);
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35 }
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36
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37 void
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38 tty_cleanup()
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39 {
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40 if (!ttyhacks)
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41 return;
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42 tcsetattr(0, TCSAFLUSH, &orig_termios);
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43 }
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44
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45 void
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46 handle_tty_input()
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47 {
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48 char buf[256];
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49 int i, c, cc;
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50
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51 cc = read(0, buf, sizeof buf);
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52 if (cc <= 0) {
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53 tty_cleanup();
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54 exit(0);
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55 }
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56 for (i = 0; i < cc; i++) {
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57 c = buf[i];
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58 if (c >= ' ' && c <= '~') {
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59 if (usercmd_len >= MAX_USER_CMD)
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60 continue;
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61 usercmd[usercmd_len++] = c;
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62 if (ttyhacks)
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63 putchar(c); /* echo */
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64 continue;
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65 }
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66 switch (c) {
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67 case '\b':
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68 case 0x7F:
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69 if (!usercmd_len)
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70 continue;
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71 usercmd_len--;
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72 if (ttyhacks) {
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73 putchar('\b');
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74 putchar(' ');
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75 putchar('\b');
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76 }
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77 continue;
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78 case '\n':
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79 case '\r':
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80 usercmd[usercmd_len] = '\0';
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81 if (ttyhacks)
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82 putchar('\n'); /* echo */
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83 dispatch_user_cmd();
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84 usercmd_len = 0;
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85 if (ttyhacks)
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86 putchar('>'); /* new prompt */
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87 }
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88 }
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89 }
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90
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91 void
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92 async_msg_output(msg)
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93 char *msg;
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94 {
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95 int msglen, i;
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96
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97 msglen = strlen(msg);
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98 if (ttyhacks)
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99 putchar('\r');
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100 fputs(msg, stdout);
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101 if (ttyhacks)
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102 for (i = msglen; i < usercmd_len + 1; i++)
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103 putchar(' ');
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104 putchar('\n');
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105 if (!ttyhacks)
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106 return;
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107 /* reprint the input line */
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108 putchar('>');
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109 if (!usercmd_len)
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110 return;
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111 fwrite(usercmd, 1, usercmd_len, stdout);
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112 }