FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/cmdentry.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 e7502631a0f9
children
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1 /*
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2 * This module implements ASCII command entry via the serial port,
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3 * with normal echo and minimal editing (rubout and kill).
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4 *
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5 * The command string buffer is bss-allocated here as well. It is
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6 * sized to allow a maximum-size S-record to be sent as a command,
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7 * as that is how we expect flash loading and XRAM chain-loading
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8 * to be done.
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9 */
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10
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11 #define MAXCMD 527
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12
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13 char command[MAXCMD+1];
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14
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15 /*
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16 * The command_entry() function takes no arguments, and begins by waiting
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17 * for serial input - hence the prompt should be printed before calling it.
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18 *
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19 * This function returns when one of the following characters is received:
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20 * CR - accepts the command
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21 * ^C or ^U - cancels the command
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22 *
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23 * The return value is non-zero if a non-empty command was accepted with CR,
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24 * or 0 if the user hit CR with no input or if the command was canceled
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25 * with ^C or ^U. In any case a CRLF is sent out the serial port
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26 * to close the input echo line before this function returns.
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27 */
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28 command_entry()
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29 {
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30 int inlen, ch;
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31
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32 for (inlen = 0; ; ) {
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33 ch = mygetchar();
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34 if (ch >= ' ' && ch <= '~') {
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35 if (inlen < MAXCMD) {
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36 command[inlen++] = ch;
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37 putchar(ch);
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38 } else
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39 /* putchar(7) */;
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40 continue;
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41 }
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42 switch (ch) {
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43 case '\r':
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44 case '\n':
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45 command[inlen] = '\0';
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46 putchar('\n');
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47 return(inlen);
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48 case '\b': /* BS */
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49 case 0x7F: /* DEL */
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50 if (inlen) {
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51 putchar('\b');
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52 putchar(' ');
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53 putchar('\b');
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54 inlen--;
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55 } else
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56 /* putchar(7) */;
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57 continue;
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58 case 0x03: /* ^C */
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59 putchar('^');
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60 putchar('C');
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61 putchar('\n');
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62 return(0);
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63 case 0x15: /* ^U */
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64 putchar('^');
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65 putchar('U');
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66 putchar('\n');
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67 return(0);
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68 default:
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69 /* putchar(7) */;
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70 }
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71 }
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72 }