FreeCalypso > hg > freecalypso-tools

annotate rvinterf/libasync/ttymagic.c @ 505:7bf0d909c87e

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fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents 09b4fd9b3827
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 }