FreeCalypso > hg > freecalypso-sw

annotate rvinterf/lowlevel/rviflcd.c @ 992:a7b0b426f9ca

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target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents 16ed75e266f2
children
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1 /*
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2 * This rvinterf module implements the piping of LCD output to fc-lcdemu
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <string.h>
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8 #include <strings.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11
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12 extern u_char rxpkt[];
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13 extern size_t rxpkt_len;
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14
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15 char *extlcd_program;
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16 FILE *extlcd_pout;
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17 u_char extlcd_invert;
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18
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19 void
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20 open_extlcd_pipe()
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21 {
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22 extlcd_pout = popen(extlcd_program, "w");
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23 if (!extlcd_pout) {
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24 perror(extlcd_program);
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25 exit(1);
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26 }
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27 }
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28
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29 void
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30 output_to_extlcd()
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31 {
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32 int i;
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33
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34 fprintf(extlcd_pout, "%u %u ", rxpkt[1], rxpkt[2]);
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35 for (i = 3; i < rxpkt_len; i += 2)
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36 fprintf(extlcd_pout, "%02X%02X", rxpkt[i+1] ^ extlcd_invert,
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37 rxpkt[i] ^ extlcd_invert);
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38 fputc('\n', extlcd_pout);
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39 fflush(extlcd_pout);
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40 }