annotate loadtools/tpinterf3.c @ 329:18c692984549

uptools/libcoding: hex line decoding implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 03 Feb 2018 20:37:14 +0000
parents e7502631a0f9
children
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1 /*
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2 * The do_r16() and do_w16() functions implemented in this module
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3 * provide programmatic access to the r16 and w16 commands on the target.
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4 * They will be used to implement some flash operations.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <stdio.h>
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9 #include <stdint.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <stdlib.h>
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13
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14 extern char target_response_line[];
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15
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16 do_r16(addr, retptr)
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17 uint32_t addr;
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18 uint16_t *retptr;
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19 {
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20 char addr_arg[10], *argv[3];
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21 int stat;
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22 char *strtoul_endp;
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23
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24 sprintf(addr_arg, "%lx", (u_long) addr);
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25 argv[0] = "r16";
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26 argv[1] = addr_arg;
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27 argv[2] = 0;
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28 tpinterf_make_cmd(argv);
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29 if (tpinterf_send_cmd() < 0)
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30 return(-1);
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31 stat = tpinterf_capture_output_oneline(1);
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32 if (stat != 1) {
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33 errout: fprintf(stderr, "error: malformed response to r16 command\n");
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34 return(-1);
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35 }
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36 if (strlen(target_response_line) != 4)
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37 goto errout;
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38 *retptr = strtoul(target_response_line, &strtoul_endp, 16);
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39 if (strtoul_endp != target_response_line + 4)
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40 goto errout;
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41 return(0);
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42 }
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43
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44 do_w16(addr, data)
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45 uint32_t addr;
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46 uint16_t data;
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47 {
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48 char addr_arg[10], data_arg[10], *argv[4];
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49
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50 sprintf(addr_arg, "%lx", (u_long) addr);
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51 sprintf(data_arg, "%lx", (u_long) data);
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52 argv[0] = "w16";
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53 argv[1] = addr_arg;
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54 argv[2] = data_arg;
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55 argv[3] = 0;
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56 tpinterf_make_cmd(argv);
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57 if (tpinterf_send_cmd() < 0)
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58 return(-1);
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59 return tpinterf_pass_output(1);
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60 }