FreeCalypso > hg > freecalypso-tools
annotate loadtools/tpinterf3.c @ 797:ef501e258036
doc/opt-freecalypso-tree: add sim-data and sim-scripts
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 19 Mar 2021 06:17:58 +0000 |
parents | e7502631a0f9 |
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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 } |