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annotate rvinterf/tmsh/etmbasic.c @ 984:8c83777f856c

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tfc139 reworked for the new "universal" break-in method
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sat, 12 Dec 2015 03:17:12 +0000
parents ebdf5afa9fb5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
183
85222710dc92 rvinterf/etm: implemented everything except the packet sending command
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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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>
260
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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 #include "tm3.h"
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14
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15 extern u_char rvi_msg[];
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16 extern int rvi_msg_len;
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17
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18 void
188
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19 print_etm_pkt_raw(err)
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20 char *err;
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21 {
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22 char buf[MAX_PKT_FROM_TARGET*3+80], *dp;
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23 int i;
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24
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25 sprintf(buf, "%s:", err);
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26 dp = index(buf, '\0');
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27 for (i = 2; i < rvi_msg_len; i++) {
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28 sprintf(dp, " %02X", rvi_msg[i]);
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29 dp += 3;
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30 }
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31 async_msg_output(buf);
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32 }
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33
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34 void
183
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35 etm_packet_rx()
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36 {
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37 int i, c;
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38
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39 if (rvi_msg_len < 4) {
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40 runt: print_etm_pkt_raw("TM runt");
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41 return;
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42 }
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43 c = 0;
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44 for (i = 2; i < rvi_msg_len; i++)
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45 c ^= rvi_msg[i];
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46 if (c) {
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47 print_etm_pkt_raw("BAD CKSUM");
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48 return;
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49 }
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50 switch (rvi_msg[2]) {
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51 case ETM_CORE:
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52 if (rvi_msg_len < 6)
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53 goto runt;
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54 tmcore_msg_rx();
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55 return;
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56 case ETM_FFS1:
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57 print_etm_pkt_raw("FFS1");
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58 return;
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59 case ETM_FFS2:
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60 if (rvi_msg_len < 5)
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61 goto runt;
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62 handle_ffs2_response();
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63 return;
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64 /* TM3 */
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65 case MEM_READ:
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66 if (rvi_msg_len < 5)
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67 goto runt;
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68 handle_omr_response();
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69 return;
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70 default:
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71 print_etm_pkt_raw("TM unknown");
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72 }
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73 }
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74
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75 void
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76 cmd_etmpkt(argc, argv)
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77 char **argv;
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78 {
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79 u_char pkt[MAX_PKT_TO_TARGET];
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80 int di, c, b;
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81 char **ap;
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82
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83 pkt[0] = RVT_TM_HEADER;
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84 di = 1;
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85 c = 0;
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86 for (ap = argv + 1; *ap; ap++) {
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87 b = strtoul(*ap, 0, 16);
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88 pkt[di++] = b;
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89 c ^= b;
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90 }
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91 pkt[di++] = c;
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92 send_pkt_to_target(pkt, di);
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93 }
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94
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95 void
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96 send_etm_cmd(buf, len)
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97 u_char *buf;
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98 {
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99 int i, c;
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100
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101 buf[0] = RVT_TM_HEADER;
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102 c = 0;
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103 for (i = 1; i <= len; i++)
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104 c ^= buf[i];
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105 buf[i] = c;
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106 send_pkt_to_target(buf, len + 2);
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107 }