1 | /* |
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2 | * 6200ch - an external channel changer for Motorola DCT-6200 Tuner |
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3 | * |
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4 | * Copyright 2004,2005 by Stacey D. Son <mythdev@son.org> |
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5 | * |
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6 | * This program is free software; you can redistribute it and/or modify |
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7 | * it under the terms of the GNU General Public License as published by |
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8 | * the Free Software Foundation; either version 2 of the License, or |
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9 | * (at your option) any later version. |
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10 | * |
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11 | * This program is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | * GNU General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU General Public License |
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17 | * along with this program; if not, write to the Free Software Foundation, |
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18 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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19 | */ |
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20 | |
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21 | #include <libavc1394/rom1394.h> |
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22 | #include <libavc1394/avc1394.h> |
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23 | #include <libraw1394/raw1394.h> |
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24 | #include <sys/types.h> |
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25 | #include <stdio.h> |
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26 | #include <errno.h> |
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27 | #include <stdlib.h> |
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28 | #include <unistd.h> // for usleep |
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29 | |
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30 | // Motorola DCT-6200 IDs |
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31 | // Note: there are at least eleven different vendor IDs for the 6200 |
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32 | #define DCT6200_VENDOR_ID1 0x00000ce5 |
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33 | #define DCT6200_VENDOR_ID2 0x00000e5c |
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34 | #define DCT6200_VENDOR_ID3 0x00001225 |
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35 | #define DCT6200_VENDOR_ID4 0x00000f9f |
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36 | #define DCT6200_VENDOR_ID5 0x00001180 |
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37 | #define DCT6200_VENDOR_ID6 0x000012c9 |
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38 | #define DCT6200_VENDOR_ID7 0x000011ae |
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39 | #define DCT6200_VENDOR_ID8 0x0000152f |
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40 | #define DCT6200_VENDOR_ID9 0x000014e8 |
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41 | #define DCT6200_VENDOR_ID10 0x000016b5 |
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42 | #define DCT6200_VENDOR_ID11 0x00001371 |
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43 | #define DCT6200_SPEC_ID 0x00005068 |
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44 | #define DCT6200_SW_VERSION 0x00010101 |
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45 | #define DCT6200_MODEL_ID1 0x0000620a |
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46 | #define DCT6200_MODEL_ID2 0x00006200 |
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47 | #define DCT6412_VENDOR_ID1 0x00000f9f |
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48 | #define DCT6412_VENDOR_ID2 0x0000152f |
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49 | #define DCT6412_MODEL_ID1 0x000064ca |
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50 | #define DCT6412_MODEL_ID2 0x000064cb |
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51 | #define DCT6416_VENDOR_ID1 0x000017ee |
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52 | #define DCT6416_MODEL_ID1 0x0000646b |
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53 | #define DCT5100_VENDOR_ID1 0x000017ee |
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54 | #define DCT5100_MODEL_ID1 0x0000620a |
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55 | |
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56 | #define AVC1394_SUBUNIT_TYPE_6200 (9 << 19) /* uses a reserved subunit type */ |
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57 | |
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58 | #define AVC1394_6200_COMMAND_CHANNEL 0x000007C00 /* 6200 subunit command */ |
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59 | #define AVC1394_6200_OPERAND_SET 0x20 /* 6200 subunit command operand */ |
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60 | |
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61 | #define CTL_CMD0 AVC1394_CTYPE_CONTROL | AVC1394_SUBUNIT_TYPE_6200 | \ |
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62 | AVC1394_SUBUNIT_ID_0 | AVC1394_6200_COMMAND_CHANNEL | \ |
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63 | AVC1394_6200_OPERAND_SET |
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64 | |
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65 | #define STARTING_NODE 1 /* skip 1394 nodes to avoid error msgs */ |
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66 | #define STARTING_PORT 0 |
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67 | #define RETRY_COUNT_SLOW 1 |
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68 | #define RETRY_COUNT_FAST 0 |
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69 | |
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70 | void set_chan_slow(raw1394handle_t handle, int device, int verbose, int chn); |
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71 | void set_chan_fast(raw1394handle_t handle, int device, int verbose, int chn); |
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72 | |
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73 | void usage() |
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74 | { |
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75 | fprintf(stderr, "Usage: 6200ch [-v] [-s] [-n NODE] [-p PORT] " |
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76 | "<channel_num>\n"); |
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77 | fprintf(stderr, "-v print additional verbose output\n"); |
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78 | fprintf(stderr, "-s use single packet method\n"); |
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79 | fprintf(stderr, "-n NODE node to start device scanning on (default:%i)\n", |
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80 | STARTING_NODE); |
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81 | fprintf(stderr, "-p PORT port/adapter to use (default:%i)\n", |
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82 | STARTING_PORT); |
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83 | exit(1); |
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84 | } |
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85 | |
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86 | int main (int argc, char *argv[]) |
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87 | { |
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88 | rom1394_directory dir; |
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89 | int device = -1; |
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90 | int i; |
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91 | int verbose = 0; |
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92 | int single_packet = 0; |
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93 | quadlet_t cmd[2]; |
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94 | int chn = 550; |
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95 | |
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96 | /* some people experience crashes when starting on node 1 */ |
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97 | int starting_node = STARTING_NODE; |
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98 | int starting_port = STARTING_PORT; |
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99 | int c; |
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100 | int index; |
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101 | |
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102 | if (argc < 2) |
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103 | usage(); |
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104 | |
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105 | opterr = 0; |
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106 | while ((c = getopt(argc, argv, "vsn:p:")) != -1) |
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107 | { |
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108 | switch (c) { |
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109 | case 'v': |
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110 | verbose = 1; |
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111 | break; |
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112 | case 's': |
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113 | single_packet = 1; |
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114 | break; |
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115 | case 'n': |
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116 | starting_node = atoi(optarg); |
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117 | break; |
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118 | case 'p': |
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119 | starting_port = atoi(optarg); |
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120 | break; |
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121 | default: |
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122 | fprintf(stderr, "incorrect command line arguments\n"); |
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123 | usage(); |
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124 | } |
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125 | } |
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126 | |
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127 | /* print out usage message if not enough arguments */ |
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128 | if (optind != argc-1) { |
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129 | usage(); |
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130 | } |
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131 | /* the last argument is the channel number */ |
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132 | chn = atoi(argv[optind]); |
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133 | |
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134 | #ifdef RAW1394_V_0_8 |
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135 | raw1394handle_t handle = raw1394_get_handle(); |
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136 | #else |
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137 | raw1394handle_t handle = raw1394_new_handle(); |
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138 | #endif |
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139 | |
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140 | if (!handle) { |
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141 | if (!errno) { |
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142 | fprintf(stderr, "Not Compatable!\n"); |
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143 | } else { |
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144 | perror("Couldn't get 1394 handle"); |
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145 | fprintf(stderr, "Is ieee1394, driver, and raw1394 loaded?\n"); |
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146 | } |
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147 | exit(1); |
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148 | } |
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149 | |
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150 | if (raw1394_set_port(handle, starting_port) < 0) { |
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151 | perror("couldn't set port"); |
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152 | raw1394_destroy_handle(handle); |
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153 | exit(1); |
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154 | } |
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155 | |
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156 | if (verbose) |
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157 | printf("starting with node: %d\n", starting_node); |
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158 | |
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159 | int nc = raw1394_get_nodecount(handle); |
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160 | for (i=starting_node; i < nc; ++i) { |
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161 | if (rom1394_get_directory(handle, i, &dir) < 0) { |
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162 | fprintf(stderr,"error reading config rom directory for node %d\n", i); |
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163 | raw1394_destroy_handle(handle); |
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164 | exit(1); |
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165 | } |
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166 | |
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167 | if (verbose) |
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168 | printf("node %d: vendor_id = 0x%08x model_id = 0x%08x\n", |
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169 | i, dir.vendor_id, dir.model_id); |
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170 | |
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171 | if ( ((dir.vendor_id == DCT6200_VENDOR_ID1) || |
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172 | (dir.vendor_id == DCT6200_VENDOR_ID2) || |
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173 | (dir.vendor_id == DCT6200_VENDOR_ID3) || |
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174 | (dir.vendor_id == DCT6200_VENDOR_ID4) || |
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175 | (dir.vendor_id == DCT6200_VENDOR_ID5) || |
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176 | (dir.vendor_id == DCT6200_VENDOR_ID6) || |
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177 | (dir.vendor_id == DCT6200_VENDOR_ID7) || |
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178 | (dir.vendor_id == DCT6200_VENDOR_ID8) || |
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179 | (dir.vendor_id == DCT6200_VENDOR_ID9) || |
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180 | (dir.vendor_id == DCT6200_VENDOR_ID10) || |
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181 | (dir.vendor_id == DCT6200_VENDOR_ID11) || |
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182 | (dir.vendor_id == DCT6412_VENDOR_ID1) || |
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183 | (dir.vendor_id == DCT6412_VENDOR_ID2) || |
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184 | (dir.vendor_id == DCT6416_VENDOR_ID1) || |
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185 | (dir.vendor_id == DCT5100_VENDOR_ID1)) && |
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186 | ((dir.model_id == DCT6200_MODEL_ID1) || |
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187 | (dir.model_id == DCT6200_MODEL_ID2) || |
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188 | (dir.model_id == DCT6412_MODEL_ID1) || |
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189 | (dir.model_id == DCT6412_MODEL_ID2) || |
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190 | (dir.model_id == DCT6416_MODEL_ID1) || |
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191 | (dir.model_id == DCT5100_MODEL_ID1)) ) { |
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192 | if (dir.unit_spec_id != DCT6200_SPEC_ID) |
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193 | fprintf(stderr, "Warning: Unit Spec ID different.\n"); |
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194 | if (dir.unit_sw_version != DCT6200_SW_VERSION) |
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195 | fprintf(stderr, "Warning: Unit Software Version different.\n"); |
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196 | device = i; |
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197 | break; |
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198 | } |
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199 | } |
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200 | |
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201 | if (device == -1) { |
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202 | fprintf(stderr, "Could not find Motorola DCT-6200 on the 1394 bus.\n"); |
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203 | raw1394_destroy_handle(handle); |
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204 | exit(1); |
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205 | } |
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206 | |
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207 | if (single_packet) |
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208 | set_chan_fast(handle, device, verbose, chn); |
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209 | else |
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210 | set_chan_slow(handle, device, verbose, chn); |
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211 | |
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212 | raw1394_destroy_handle(handle); |
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213 | exit(0); |
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214 | } |
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215 | |
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216 | void set_chan_slow(raw1394handle_t handle, int device, int verbose, int chn) |
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217 | { |
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218 | int i; |
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219 | int dig[3]; |
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220 | quadlet_t cmd[2]; |
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221 | |
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222 | dig[2] = (chn % 10); |
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223 | dig[1] = (chn % 100) / 10; |
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224 | dig[0] = (chn % 1000) / 100; |
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225 | |
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226 | if (verbose) |
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227 | printf("AV/C Command: %d%d%d = Op1=0x%08X Op2=0x%08X Op3=0x%08X\n", |
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228 | dig[0], dig[1], dig[2], |
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229 | CTL_CMD0 | dig[0], CTL_CMD0 | dig[1], CTL_CMD0 | dig[2]); |
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230 | |
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231 | for (i=0; i<3; i++) { |
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232 | cmd[0] = CTL_CMD0 | dig[i]; |
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233 | cmd[1] = 0x0; |
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234 | |
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235 | avc1394_transaction_block(handle, device, cmd, 2, RETRY_COUNT_SLOW); |
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236 | usleep(500000); // small delay for button to register |
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237 | } |
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238 | } |
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239 | |
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240 | void set_chan_fast(raw1394handle_t handle, int device, int verbose, int chn) |
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241 | { |
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242 | quadlet_t cmd[3]; |
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243 | |
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244 | cmd[0] = CTL_CMD0 | 0x67; |
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245 | cmd[1] = (0x04 << 24) | (chn << 8) | 0x000000FF; |
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246 | cmd[2] = 0xFF << 24; |
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247 | |
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248 | if (verbose) |
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249 | printf("AV/C command for channel %d = 0x%08X %08X %08X\n", |
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250 | chn, cmd[0], cmd[1], cmd[2]); |
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251 | |
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252 | avc1394_transaction_block(handle, device, cmd, 3, RETRY_COUNT_FAST); |
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253 | } |
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