FreeCalypso > hg > freecalypso-tools

annotate loadtools/audump.c @ 1000:39a6090a052a

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doc/How-flash-really-works: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 09 Dec 2023 09:08:19 +0000
parents 8a89a42baa70
children
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1 /*
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2 * This module implements the tfc139-audio-dump command in fc-loadtool,
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3 * which is a special hack for reverse engineering of Compal audio configs.
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4 * This hack command is named so because it will only produce interesting
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5 * output if fc-loadtool has been entered via tfc139, i.e., breaking into
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6 * a running Compal firmware.
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7 */
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8
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9 #include <sys/types.h>
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10 #include <stdio.h>
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11 #include <stdint.h>
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12 #include <stdlib.h>
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13 #include <string.h>
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14 #include <strings.h>
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15
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16 extern char target_response_line[];
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17
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18 do_abbr(page, reg, retptr)
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19 unsigned page, reg;
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20 uint16_t *retptr;
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21 {
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22 char page_arg[8], reg_arg[8], *argv[4];
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23 int stat;
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24 char *strtoul_endp;
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25
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26 sprintf(page_arg, "%u", page);
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27 sprintf(reg_arg, "%u", reg);
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28 argv[0] = "abbr";
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29 argv[1] = page_arg;
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30 argv[2] = reg_arg;
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31 argv[3] = 0;
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32 tpinterf_make_cmd(argv);
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33 if (tpinterf_send_cmd() < 0)
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34 return(-1);
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35 stat = tpinterf_capture_output_oneline(1);
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36 if (stat != 1) {
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37 errout: fprintf(stderr, "error: malformed response to abbr command\n");
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38 return(-1);
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39 }
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40 if (strlen(target_response_line) != 3)
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41 goto errout;
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42 *retptr = strtoul(target_response_line, &strtoul_endp, 16);
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43 if (strtoul_endp != target_response_line + 3)
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44 goto errout;
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45 return(0);
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46 }
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47
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48 cmd_tfc139_audio_dump(argc, argv)
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49 char **argv;
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50 {
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51 uint16_t data[31];
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52 int i, stat;
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53 FILE *of;
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54
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55 if (argv[1]) {
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56 of = fopen(argv[1], "w");
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57 if (!of) {
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58 perror(argv[1]);
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59 return(-1);
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60 }
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61 } else
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62 of = stdout;
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63 /* read d_aec_ctrl */
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64 stat = do_r16(0xFFD00238, data);
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65 if (stat) {
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66 bad_read: if (argv[1])
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67 fclose(of);
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68 return(stat);
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69 }
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70 fprintf(of, "d_aec_ctrl: 0x%04X\n", (int) data[0]);
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71 /* read new AEC parameter words */
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72 for (i = 0; i < 8; i++) {
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73 stat = do_r16(0xFFD0084A + (i << 1), data + i);
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74 if (stat)
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75 goto bad_read;
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76 }
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77 fputs("New AEC params:", of);
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78 for (i = 0; i < 8; i++)
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79 fprintf(of, " 0x%04X", (int) data[i]);
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80 putc('\n', of);
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81 putc('\n', of);
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82 /* read UL FIR coeffs */
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83 for (i = 0; i < 31; i++) {
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84 stat = do_r16(0xFFD00908 + (i << 1), data + i);
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85 if (stat)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
86 goto bad_read;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 647
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87 }
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parents: 647
diff changeset
88 fputs("Uplink FIR coefficients:\n", of);
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89 for (i = 0; i < 31; i++) {
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diff changeset
90 if (i == 0 || i == 8 || i == 16 || i == 24)
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diff changeset
91 putc('\n', of);
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92 else
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Mychaela Falconia <falcon@freecalypso.org>
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93 putc(' ', of);
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diff changeset
94 fprintf(of, "0x%04X", (int) data[i]);
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diff changeset
95 }
852
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diff changeset
96 putc('\n', of);
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97 putc('\n', of);
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98 /* read DL FIR coeffs */
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diff changeset
99 for (i = 0; i < 31; i++) {
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100 stat = do_r16(0xFFD00946 + (i << 1), data + i);
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diff changeset
101 if (stat)
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102 goto bad_read;
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103 }
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diff changeset
104 fputs("Downlink FIR coefficients:\n", of);
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diff changeset
105 for (i = 0; i < 31; i++) {
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diff changeset
106 if (i == 0 || i == 8 || i == 16 || i == 24)
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diff changeset
107 putc('\n', of);
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diff changeset
108 else
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109 putc(' ', of);
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110 fprintf(of, "0x%04X", (int) data[i]);
0
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parents:
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111 }
852
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diff changeset
112 putc('\n', of);
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diff changeset
113 putc('\n', of);
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114 /* read ABB VBC registers */
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diff changeset
115 stat = do_abbr(1, 8, data);
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diff changeset
116 if (stat)
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117 goto bad_read;
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diff changeset
118 fprintf(of, "VBCTRL1: 0x%03X\n", (int) data[0]);
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diff changeset
119 stat = do_abbr(1, 11, data);
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diff changeset
120 if (stat)
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121 goto bad_read;
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parents: 647
diff changeset
122 fprintf(of, "VBCTRL2: 0x%03X\n", (int) data[0]);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
123 stat = do_abbr(1, 10, data);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
124 if (stat)
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
125 goto bad_read;
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
126 fprintf(of, "VBPOP: 0x%03X\n", (int) data[0]);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
127 stat = do_abbr(1, 7, data);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
128 if (stat)
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
129 goto bad_read;
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
130 fprintf(of, "VBUCTRL: 0x%03X\n", (int) data[0]);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
131 stat = do_abbr(0, 6, data);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
132 if (stat)
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
133 goto bad_read;
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
134 fprintf(of, "VBDCTRL: 0x%03X\n", (int) data[0]);
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
135 /* done */
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
136 if (argv[1])
8a89a42baa70 fc-loadtool tfc139-audio-dump hack implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 647
diff changeset
137 fclose(of);
0
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 return(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 }