FreeCalypso > hg > freecalypso-tools

annotate target-utils/simagent/tx.c @ 896:0a2f50c571de

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CHANGES: fc-buzplay basic 'play' command extension
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Apr 2022 08:41:34 +0000
parents 289733ff272b
children
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1 /*
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2 * This module implements transmission of bytes toward the SIM.
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3 */
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4
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5 #include "types.h"
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6 #include "simregs.h"
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7
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8 extern u16 conf1_reg;
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9
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10 send_to_sim(bytes, count)
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11 u8 *bytes;
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12 unsigned count;
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13 {
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14 unsigned n, timeout, delay;
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15
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16 if (conf1_reg & SIM_CONF1_ETU)
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17 delay = 6000;
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18 else
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19 delay = 30000;
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20 SIMREGS.conf1 = conf1_reg |= SIM_CONF1_TXRX;
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21 if (count == 1)
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22 wait_ARM_cycles(delay);
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23 (void) SIMREGS.it;
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24 for (n = 0; ; ) {
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25 SIMREGS.dtx = bytes[n++];
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26 if (n == count) {
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27 SIMREGS.conf1 = conf1_reg &= ~SIM_CONF1_TXRX;
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28 return(0);
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29 }
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30 wait_ARM_cycles(delay);
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31 for (timeout = 12000; timeout; timeout--)
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32 if (SIMREGS.it & SIM_IT_ITTX)
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33 break;
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34 if (!timeout) {
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35 printf("ERROR: SIM interface Tx timeout on byte %u\n",
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36 n);
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37 return(-1);
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38 }
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39 }
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40 }
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41
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42 void
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43 cmd_tx(argstr)
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44 char *argstr;
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45 {
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46 u8 bytes[5];
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47 int rc;
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48
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49 rc = decode_hex_string_arg(argstr, bytes, sizeof bytes);
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50 if (rc < 0)
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51 return;
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52 if (rc == 0) {
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53 printf("ERROR: empty hex string argument\n");
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54 return;
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55 }
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56 send_to_sim(bytes, rc);
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57 }