annotate rvinterf/tmsh/etmbasic.c @ 946:845c2e420069

target-utils/c139explore utility started
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 02 Nov 2015 18:09:37 +0000
parents 577291a2ad76
children ebdf5afa9fb5
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1 /*
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2 * Basic ETM interaction
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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 "pktmux.h"
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11 #include "limits.h"
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12 #include "etm.h"
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13
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14 extern u_char rvi_msg[];
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15 extern int rvi_msg_len;
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16
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17 void
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18 print_etm_pkt_raw(err)
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19 char *err;
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20 {
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21 char buf[MAX_PKT_FROM_TARGET*3+80], *dp;
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22 int i;
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23
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24 sprintf(buf, "%s:", err);
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25 dp = index(buf, '\0');
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26 for (i = 2; i < rvi_msg_len; i++) {
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27 sprintf(dp, " %02X", rvi_msg[i]);
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28 dp += 3;
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29 }
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30 async_msg_output(buf);
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31 }
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32
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33 void
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34 etm_packet_rx()
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35 {
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36 int i, c;
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37
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38 if (rvi_msg_len < 4) {
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39 runt: print_etm_pkt_raw("ETM Runt");
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40 return;
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41 }
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42 c = 0;
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43 for (i = 2; i < rvi_msg_len; i++)
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44 c ^= rvi_msg[i];
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45 if (c) {
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46 print_etm_pkt_raw("BAD CKSUM");
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47 return;
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48 }
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49 switch (rvi_msg[2]) {
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50 case ETM_CORE:
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51 if (rvi_msg_len < 6)
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52 goto runt;
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53 tmcore_msg_rx();
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54 return;
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55 case ETM_FFS1:
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56 print_etm_pkt_raw("FFS1");
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57 return;
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58 case ETM_FFS2:
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59 if (rvi_msg_len < 5)
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60 goto runt;
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61 handle_ffs2_response();
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62 return;
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63 default:
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64 print_etm_pkt_raw("ETM Unknown");
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65 }
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66 }
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67
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68 void
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69 cmd_etmpkt(argc, argv)
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70 char **argv;
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71 {
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72 u_char pkt[MAX_PKT_TO_TARGET];
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73 int di, c, b;
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74 char **ap;
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75
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76 pkt[0] = RVT_TM_HEADER;
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77 di = 1;
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78 c = 0;
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79 for (ap = argv + 1; *ap; ap++) {
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80 b = strtoul(*ap, 0, 16);
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81 pkt[di++] = b;
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82 c ^= b;
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83 }
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84 pkt[di++] = c;
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85 send_pkt_to_target(pkt, di);
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86 }
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87
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88 void
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89 send_etm_cmd(buf, len)
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90 u_char *buf;
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91 {
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92 int i, c;
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93
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94 buf[0] = RVT_TM_HEADER;
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95 c = 0;
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96 for (i = 1; i <= len; i++)
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97 c ^= buf[i];
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98 buf[i] = c;
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99 send_pkt_to_target(buf, len + 2);
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100 }