FreeCalypso > hg > freecalypso-tools
annotate target-utils/simagent/byterx.c @ 846:a2e17e0f9622
CHANGES: document fc-tmsync mpr & madc command additions
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 31 Jul 2021 22:37:34 +0000 |
parents | c136a1a2474b |
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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 } |