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annotate pircharge/abb.c @ 231:27c269e408af

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arm7dis/armdis: bug in the decoding of SWP instructions
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 21 Dec 2017 22:15:00 +0000
parents 84a4f6ef2d28
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
229
84a4f6ef2d28 pirchgdbg: complete enough for first test
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diff changeset
1 #include <sys/types.h>
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2 #include <stdio.h>
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3 #include <string.h>
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4 #include <strings.h>
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5 #include <stdlib.h>
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6 #include <rvinterf/pktmux.h>
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7 #include <rvinterf/limits.h>
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8 #include <rvinterf/localsock.h>
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9 #include <rvinterf/localtypes.h>
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10 #include <rvinterf/etm.h>
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11 #include <rvinterf/exitcodes.h>
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12
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13 extern u_char rvi_msg[];
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14 extern int rvi_msg_len;
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15
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16 extern int adccal_a, adccal_b;
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17
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18 struct abbtab {
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19 char *name;
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20 int regno;
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21 int special;
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22 } abbtab[] = {
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23 {"VBAT", 15, 2},
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24 {"ICHG", 17, 1},
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25 {"CHGREG", 25, 0},
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26 {"BCICTL1", 28, 0},
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27 {"BCICTL2", 29, 0},
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28 {"BCICONF", 32+13, 0},
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29 {0, 0, 0}
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30 };
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31
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32 int abbr_in_progress, abbr_index;
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33
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34 void
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35 issue_abbr()
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36 {
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37 u_char cmdpkt[5];
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38 int i, c;
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39
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40 cmdpkt[0] = RVT_TM_HEADER;
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41 cmdpkt[1] = ETM_CORE;
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42 cmdpkt[2] = TMCORE_OPC_CODEC_RD;
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43 cmdpkt[3] = abbtab[abbr_index].regno;
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44 c = 0;
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45 for (i = 1; i <= 3; i++)
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46 c ^= cmdpkt[i];
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47 cmdpkt[i] = c;
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48 send_pkt_to_target(cmdpkt, 5);
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49 }
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50
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51 void
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52 adc_end_process()
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53 {
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54 if (abbr_in_progress)
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55 return;
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56 abbr_in_progress = 1;
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57 abbr_index = 0;
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58 issue_abbr();
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59 }
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60
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61 void
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62 etm_packet_rx()
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63 {
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64 int i, c;
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65 unsigned val;
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66
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67 if (rvi_msg_len != 9) {
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68 printf("Received TM packet of wrong length\n");
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69 return;
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70 }
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71 c = 0;
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72 for (i = 2; i < rvi_msg_len; i++)
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73 c ^= rvi_msg[i];
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74 if (c) {
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75 printf("Received TM packet with bad checksum\n");
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76 return;
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77 }
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78 if (rvi_msg[2] != ETM_CORE) {
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79 printf("Received TM packet that isn't ETM_CORE\n");
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80 return;
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81 }
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82 if (rvi_msg[4] != TMCORE_OPC_CODEC_RD) {
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83 printf("Received ETM_CORE packet that isn't abbr response\n");
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84 return;
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85 }
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86 if (rvi_msg[3]) {
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87 printf("abbr response has error code %02X\n", rvi_msg[3]);
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88 return;
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89 }
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90 if (!abbr_in_progress) {
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91 printf("abbr response with no abbr in progress\n");
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92 return;
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93 }
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94 if (rvi_msg[5] != abbtab[abbr_index].regno) {
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95 printf("abbr response for the wrong register\n");
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96 abbr_in_progress = 0;
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97 return;
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98 }
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99 val = rvi_msg[6] | rvi_msg[7] << 8;
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100 printf("%s=%03X", abbtab[abbr_index].name, val);
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101 switch (abbtab[abbr_index].special) {
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102 case 2:
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103 val = (val * adccal_a) >> 10;
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104 val += adccal_b;
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105 /* FALL THRU */
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106 case 1:
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107 printf(" (%u)", val);
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108 }
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109 putchar('\n');
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110 abbr_index++;
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111 if (abbtab[abbr_index].name)
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112 issue_abbr();
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113 else
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114 abbr_in_progress = 0;
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115 }