FreeCalypso > hg > freecalypso-tools

annotate target-utils/simagent/byterx.c @ 926:6a0aa8d36d06

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rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents c136a1a2474b
children
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1 #include <stdlib.h>
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2 #include "types.h"
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3 #include "simregs.h"
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4 #include "timeout.h"
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5
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6 rx_sim_byte(count)
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7 unsigned count;
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8 {
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9 for (; count; count--) {
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10 if (!(SIMREGS.stat & SIM_STAT_FEMPTY))
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11 return SIMREGS.drx;
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12 }
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13 return(-1);
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14 }
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15
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16 rx_sim_byte_hl()
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17 {
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18 int rc;
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19 unsigned parcnt;
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20
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21 for (parcnt = 0; parcnt < 3; parcnt++) {
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22 rc = rx_sim_byte(SIM_WAIT_TIMEOUT);
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23 if (rc < 0) {
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24 printf("ERROR: timeout waiting for SIM response\n");
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25 return(-1);
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26 }
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27 if (rc & 0x100)
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28 return rc & 0xFF;
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29 }
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30 printf("ERROR: received bad parity 3 times in a row\n");
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31 return(-1);
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32 }
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33
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34 flush_rx_fifo()
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35 {
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36 unsigned count;
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37
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38 for (count = 0; ; ) {
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39 if (SIMREGS.stat & SIM_STAT_FEMPTY)
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40 break;
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41 (void) SIMREGS.drx;
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42 if (++count >= 32) {
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43 printf("ERROR: Rx FIFO flush does not end\n");
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44 return(-1);
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45 }
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46 }
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47 return(0);
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48 }
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49
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50 void
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51 cmd_sertimeout(argbulk)
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52 char *argbulk;
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53 {
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54 char *argv[2];
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55 int count;
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56
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57 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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58 return;
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59 count = atoi(argv[0]);
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60 rx_sim_byte(count);
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61 }