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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 02490e26f53d
children
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1 /*
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2 * This module implements the stage in fc-simint where the sim-up
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3 * command is fed to simagent and the ATR response is parsed.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <ctype.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12
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13 extern int sim_voltage_mode_1v8;
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14
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15 #define MAX_ATR_BYTES 33
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16
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17 u_char sim_atr[MAX_ATR_BYTES];
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18 unsigned sim_atr_len;
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19
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20 static
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21 sim_up_callback(line)
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22 char *line;
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23 {
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24 char *cp;
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25
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26 puts(line);
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27 if (strncmp(line, "ATR:", 4))
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28 return(1);
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29 sim_atr_len = 0;
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30 for (cp = line + 4; *cp; cp += 3) {
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31 if (cp[0] != ' ' || !isxdigit(cp[1]) || !isxdigit(cp[2])) {
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32 fprintf(stderr,
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33 "error: invalid ATR line from simagent\n");
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34 return(1);
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35 }
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36 if (sim_atr_len >= MAX_ATR_BYTES) {
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37 fprintf(stderr,
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38 "error: ATR from simagent is too long\n");
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39 return(1);
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40 }
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41 sim_atr[sim_atr_len++] = decode_hex_byte(cp + 1);
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42 }
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43 return(0);
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44 }
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45
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46 void
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47 do_sim_up()
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48 {
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49 char *targv[3];
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50
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51 printf("Bringing up SIM interface at %s V\n",
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52 sim_voltage_mode_1v8 ? "1.8" : "3.0");
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53 targv[0] = "sim-up";
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54 targv[1] = sim_voltage_mode_1v8 ? "1.8" : "3";
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55 targv[2] = 0;
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56 tpinterf_make_cmd(targv);
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57 if (tpinterf_send_cmd() < 0)
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58 exit(1);
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59 if (tpinterf_capture_output(20, sim_up_callback))
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60 exit(1);
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61 if (!sim_atr_len) {
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62 fprintf(stderr, "error: no ATR returned from simagent\n");
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63 exit(1);
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64 }
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65 }