annotate loadtools/simup.c @ 922:3152e23399a2

document SE K2x0 FFS quirks and our support for them
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 02 Jan 2023 00:50:19 +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 }