6200ch
From MythTV Official Wiki
| Author | Stacey Son |
| Description | Channel-change script for Motorola DCT-6200 cable box via a 1394 (aka Firewire) connection. |
| Supports |
6200ch is a small program that Stacey Son wrote to change channels on a Motorola DCT-6200 cable box via a 1394 (aka. Firewire) connection.
README
I was working on some code to record the video/audio via firewire, however, I have noticed that my cable provider has started to encrypt (5C/DTCP) many of the channels that I care to record. I am currently using a s-video cable, a PVR-250 and this code with mythtv until I figure out something better to do. This works with for DCT-6200 but may be easy to modify for other firewire tuners as well.
To use this with mythtv do the following:
(1) Make sure you have 1394/Firewire drivers installed in your kernel.
(2) Install libraw1394, librom1394 and libavc1394. (On gentoo: "emerge libavc1394").
(3) Compile and install "6200ch":
# cc -std=gnu99 -o 6200ch 6200ch.c -lavc1394 -lrom1394 -lraw1394
# cp 6200ch /usr/local/bin
(4) Connect a 1394/Firewire cable from your computer to your DCT-6200 and test:
# 6200ch <your_favorite_channel_number>
(5) Configure Mythtv to use the channel changer by running the "setup" program and adding to "/usr/local/bin/6200ch" to the "External channel change command" field under "Connect source to Input".
Enjoy!
The Code
6200ch.c
/*
* 6200ch - an external channel changer for Motorola DCT-6200 Tuner
*
* Copyright 2004,2005 by Stacey D. Son ( mythdev a son d org )
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <libavc1394/rom1394.h>
#include <libavc1394/avc1394.h>
#include <libraw1394/raw1394.h>
#include <sys/types.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <limits.h> //for LLONG_MAX
#include <getopt.h>
#include <unistd.h> // for usleep
// Vendor and Model IDs.
// NOTE: Some Models have more than one possible Vendor ID
// WARNING: Please update firewiredevice.cpp when adding to this list.
#define DCH3200_VENDOR_ID1 0x00001c11
#define DCH3200_VENDOR_ID2 0x00001cfb
#define DCH3200_VENDOR_ID3 0x00001fc4
#define DCH3200_VENDOR_ID4 0x000023a3
#define DCH3200_MODEL_ID1 0x0000d330
#define DCX3200_MODEL_ID1 0x0000f740
#define DCX3200_MODEL_ID2 0x0000fa07
#define DCX3432_VENDOR_ID1 0x000024a0
#define DCX3432_MODEL_ID1 0x0000ea05
#define DCH3416_VENDOR_ID1 0x00001e46
#define DCH3416_MODEL_ID1 0x0000b630
#define DCT3412_VENDOR_ID1 0x0000159a
#define DCT3412_MODEL_ID1 0x000034cb
#define DCT3416_VENDOR_ID1 0x000016b5
#define DCT3416_VENDOR_ID2 0x00001bdd
#define DCT3416_MODEL_ID1 0x0000346b
#define DCT3416_MODEL_ID2 0x0000b630
#define DCT5100_VENDOR_ID1 0x000017ee
#define DCT5100_MODEL_ID1 0x0000620a
#define DCT6200_VENDOR_ID1 0x00000ce5
#define DCT6200_VENDOR_ID2 0x00000e5c
#define DCT6200_VENDOR_ID3 0x00001225
#define DCT6200_VENDOR_ID4 0x00000f9f
#define DCT6200_VENDOR_ID5 0x00001180
#define DCT6200_VENDOR_ID6 0x000012c9
#define DCT6200_VENDOR_ID7 0x000011ae
#define DCT6200_VENDOR_ID8 0x0000152f
#define DCT6200_VENDOR_ID9 0x000014e8
#define DCT6200_VENDOR_ID10 0x000016b5
#define DCT6200_VENDOR_ID11 0x00001371
#define DCT6200_VENDOR_ID12 0x000019a6
#define DCT6200_VENDOR_ID13 0x00001aad
#define DCT6200_VENDOR_ID14 0x00000b06
#define DCT6200_VENDOR_ID15 0x0000195e
#define DCT6200_VENDOR_ID16 0x000010dc
#define DCT6200_SPEC_ID 0x00005068
#define DCT6200_SW_VERSION 0x00010101
#define DCT6200_MODEL_ID1 0x0000620a
#define DCT6200_MODEL_ID2 0x00006200
#define DCT6412_VENDOR_ID1 0x00000f9f
#define DCT6412_VENDOR_ID2 0x0000152f
#define DCT6412_MODEL_ID1 0x000064ca
#define DCT6412_MODEL_ID2 0x000064cb
#define DCT6416_VENDOR_ID1 0x000017ee
#define DCT6416_VENDOR_ID2 0x00001a66
#define DCT6416_MODEL_ID1 0x0000646b
#define QIP7100_VENDOR_ID1 0x00002374
#define QIP7100_MODEL_ID1 0x00008100
#define QIP7100_MODEL_ID2 0x00000001
#define QIP6200_VENDOR_ID1 0x0000211e
#define QIP6200_MODEL_ID1 0x00007100
#define MOT_UNKNOWN_VENDOR_ID1 0x04db
#define MOT_UNKNOWN_VENDOR_ID2 0x0406
#define MOT_UNKNOWN_VENDOR_ID3 0x0ce5
#define MOT_UNKNOWN_VENDOR_ID4 0x111a
#define MOT_UNKNOWN_VENDOR_ID5 0x1225
#define MOT_UNKNOWN_VENDOR_ID6 0x1404
#define MOT_UNKNOWN_VENDOR_ID7 0x1626
#define MOT_UNKNOWN_VENDOR_ID8 0x18c0
#define MOT_UNKNOWN_VENDOR_ID9 0x1ade
#define MOT_UNKNOWN_VENDOR_ID10 0x1cfb
#define MOT_UNKNOWN_VENDOR_ID11 0x2040
#define MOT_UNKNOWN_VENDOR_ID12 0x2180
#define MOT_UNKNOWN_VENDOR_ID13 0x2210
#define MOT_UNKNOWN_VENDOR_ID14 0x230b
#define MOT_UNKNOWN_VENDOR_ID15 0x2375
#define MOT_UNKNOWN_VENDOR_ID16 0x2395
#define MOT_UNKNOWN_VENDOR_ID17 0x23a2
#define MOT_UNKNOWN_VENDOR_ID18 0x23ed
#define MOT_UNKNOWN_VENDOR_ID19 0x23ee
#define MOT_UNKNOWN_VENDOR_ID20 0x23a0
#define MOT_UNKNOWN_VENDOR_ID21 0x23a1
#define PACE_VENDOR_ID1 0x00005094 /* 550 & 779 */
#define PACE_VENDOR_ID2 0x00005094 /* unknown */
#define PACE550_MODEL_ID1 0x00010551
#define PACE779_MODEL_ID1 0x00010755
#define AVC1394_6200_OPERAND_SET 0x20 /* 6200 subunit command operand */
#define CTL_CMD0 AVC1394_CTYPE_CONTROL | AVC1394_SUBUNIT_TYPE_PANEL | \
AVC1394_SUBUNIT_ID_0 | AVC1394_PANEL_COMMAND_PASS_THROUGH | \
AVC1394_6200_OPERAND_SET
#define STARTING_NODE 1 /* skip 1394 nodes to avoid error msgs */
#define STARTING_PORT 0
#define RETRY_COUNT_SLOW 1
#define RETRY_COUNT_FAST 0
void set_chan_slow(raw1394handle_t handle, int device, int verbose, int chn);
void set_chan_slow_four_digit(raw1394handle_t handle, int device, int verbose, int chn);
void set_chan_fast(raw1394handle_t handle, int device, int verbose, int chn);
void set_power_fast(raw1394handle_t handle, int device, int verbose);
void usage()
{
fprintf(stderr, "Usage: 6200ch [-v] [-s] [-n NODE] [-g GUID] [-p PORT] "
"[-4] <channel_num>\n");
fprintf(stderr, "-v print additional verbose output\n");
fprintf(stderr, "-s use single packet method. Cannot be used with -4.\n");
fprintf(stderr, "-w toggle power state\n");
fprintf(stderr, "-n NODE node to start device scanning on (default:%i)\n",
STARTING_NODE);
fprintf(stderr, "-p PORT port/adapter to use (default:%i)\n",
STARTING_PORT);
fprintf(stderr, "-g GUID GUID to use, -n switch, if present, will be ignored.\n");
fprintf(stderr, "-4 Enable 4 digit channel number support. Cannot be used with -s.\n");
exit(1);
}
int main (int argc, char *argv[])
{
rom1394_directory dir;
int device = -1;
int i;
int verbose = 0;
int single_packet = 0;
int toggle_power = 0;
int bGUID=0;
octlet_t cli_GUID=0LL;
octlet_t node_GUID=0LL;
int chn = 0;
int use_four_digit = 0;
/* some people experience crashes when starting on node 1 */
int starting_node = STARTING_NODE;
int starting_port = STARTING_PORT;
int c;
if (argc < 2)
usage();
opterr = 0;
while ((c = getopt(argc, argv, "vswg:n:p:4")) != -1)
{
switch (c) {
case 'v':
verbose = 1;
break;
case 's':
single_packet = 1;
break;
case 'w':
toggle_power = 1;
break;
case 'n':
starting_node = atoi(optarg);
break;
case 'g':
bGUID=1;
starting_node=0;
cli_GUID = (octlet_t)strtoll(optarg, (char **)NULL, 16);
break;
case 'p':
starting_port = atoi(optarg);
break;
case '4':
use_four_digit = 1;
break;
default:
fprintf(stderr, "incorrect command line arguments\n");
usage();
}
}
{
/* We cannot use single packet with 4 digits */
if (single_packet && use_four_digit)
usage();
}
/* print out usage message if not enough arguments */
if (optind == argc-1)
{
/* the last argument is the channel number */
chn = atoi(argv[optind]);
}
else if (!toggle_power)
{
usage();
}
#ifdef RAW1394_V_0_8
raw1394handle_t handle = raw1394_get_handle();
#else
raw1394handle_t handle = raw1394_new_handle();
#endif
if (!handle) {
if (!errno) {
fprintf(stderr, "Not Compatible!\n");
} else {
perror("Couldn't get 1394 handle");
fprintf(stderr, "Is ieee1394, driver, and raw1394 loaded?\n");
}
exit(1);
}
if (raw1394_set_port(handle, starting_port) < 0) {
perror("couldn't set port");
raw1394_destroy_handle(handle);
exit(1);
}
if (verbose)
printf("starting with node: %d\n", starting_node);
int nc = raw1394_get_nodecount(handle);
if (bGUID!=0) {
if (cli_GUID==0LL || cli_GUID==LLONG_MAX || cli_GUID==LLONG_MIN) {
fprintf(stderr, "error parsing GUID command line parameter\n");
exit(1);
}
}
for (i=starting_node; i < nc; ++i) {
if (bGUID!=0) {
node_GUID=rom1394_get_guid(handle, i);
#ifdef DEBUG
printf("node=%d, node_GUID=%LX, cli_GUID=%LX\n", i, node_GUID, cli_GUID);
#endif
if (cli_GUID!=node_GUID) {
continue;
}
}
if (rom1394_get_directory(handle, i, &dir) < 0) {
fprintf(stderr,"error reading config rom directory for node %d\n", i);
raw1394_destroy_handle(handle);
exit(1);
}
if (verbose)
printf("node %d: vendor_id = 0x%08x model_id = 0x%08x\n",
i, dir.vendor_id, dir.model_id);
// WARNING: Please update firewiredevice.cpp when adding to this list.
if ( ((dir.vendor_id == DCH3200_VENDOR_ID1) ||
(dir.vendor_id == DCH3200_VENDOR_ID2) ||
(dir.vendor_id == DCH3200_VENDOR_ID3) ||
(dir.vendor_id == DCH3200_VENDOR_ID4) ||
(dir.vendor_id == DCH3416_VENDOR_ID1) ||
(dir.vendor_id == DCT3412_VENDOR_ID1) ||
(dir.vendor_id == DCT3416_VENDOR_ID1) ||
(dir.vendor_id == DCT3416_VENDOR_ID2) ||
(dir.vendor_id == DCT5100_VENDOR_ID1) ||
(dir.vendor_id == DCT6200_VENDOR_ID1) ||
(dir.vendor_id == DCT6200_VENDOR_ID2) ||
(dir.vendor_id == DCT6200_VENDOR_ID3) ||
(dir.vendor_id == DCT6200_VENDOR_ID4) ||
(dir.vendor_id == DCT6200_VENDOR_ID5) ||
(dir.vendor_id == DCT6200_VENDOR_ID6) ||
(dir.vendor_id == DCT6200_VENDOR_ID7) ||
(dir.vendor_id == DCT6200_VENDOR_ID8) ||
(dir.vendor_id == DCT6200_VENDOR_ID9) ||
(dir.vendor_id == DCT6200_VENDOR_ID10) ||
(dir.vendor_id == DCT6200_VENDOR_ID11) ||
(dir.vendor_id == DCT6200_VENDOR_ID12) ||
(dir.vendor_id == DCT6200_VENDOR_ID13) ||
(dir.vendor_id == DCT6200_VENDOR_ID14) ||
(dir.vendor_id == DCT6200_VENDOR_ID15) ||
(dir.vendor_id == DCT6200_VENDOR_ID16) ||
(dir.vendor_id == DCT6412_VENDOR_ID1) ||
(dir.vendor_id == DCT6412_VENDOR_ID2) ||
(dir.vendor_id == DCT6416_VENDOR_ID1) ||
(dir.vendor_id == DCT6416_VENDOR_ID2) ||
(dir.vendor_id == DCX3432_VENDOR_ID1) ||
(dir.vendor_id == QIP7100_VENDOR_ID1) ||
(dir.vendor_id == QIP6200_VENDOR_ID1) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID1) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID2) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID3) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID4) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID5) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID6) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID7) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID8) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID9) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID10) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID11) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID12) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID13) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID14) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID15) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID16) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID17) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID18) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID19) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID20) ||
(dir.vendor_id == MOT_UNKNOWN_VENDOR_ID21) ||
(dir.vendor_id == PACE_VENDOR_ID1) ||
(dir.vendor_id == PACE_VENDOR_ID2)) &&
((dir.model_id == DCH3200_MODEL_ID1) ||
(dir.model_id == DCX3200_MODEL_ID1) ||
(dir.model_id == DCX3200_MODEL_ID2) ||
(dir.model_id == DCX3432_MODEL_ID1) ||
(dir.model_id == DCH3416_MODEL_ID1) ||
(dir.model_id == DCT3412_MODEL_ID1) ||
(dir.model_id == DCT3416_MODEL_ID1) ||
(dir.model_id == DCT3416_MODEL_ID2) ||
(dir.model_id == DCT5100_MODEL_ID1) ||
(dir.model_id == DCT6200_MODEL_ID1) ||
(dir.model_id == DCT6200_MODEL_ID2) ||
(dir.model_id == DCT6412_MODEL_ID1) ||
(dir.model_id == DCT6412_MODEL_ID2) ||
(dir.model_id == DCT6416_MODEL_ID1) ||
(dir.model_id == QIP7100_MODEL_ID1) ||
(dir.model_id == QIP7100_MODEL_ID2) ||
(dir.model_id == QIP6200_MODEL_ID1) ||
(dir.model_id == PACE550_MODEL_ID1) ||
(dir.model_id == PACE779_MODEL_ID1)) )
{
if (dir.unit_spec_id != DCT6200_SPEC_ID)
fprintf(stderr, "Warning: Unit Spec ID different.\n");
if (dir.unit_sw_version != DCT6200_SW_VERSION)
fprintf(stderr, "Warning: Unit Software Version different.\n");
device = i;
break;
}
}
if (device == -1) {
fprintf(stderr, "Could not find Motorola DCT-6200 on the 1394 bus.\n");
raw1394_destroy_handle(handle);
exit(1);
}
if (toggle_power)
set_power_fast(handle, device, verbose);
if (chn)
{
if (single_packet)
set_chan_fast(handle, device, verbose, chn);
else
if (use_four_digit)
set_chan_slow_four_digit(handle, device, verbose, chn);
else
set_chan_slow(handle, device, verbose, chn);
}
raw1394_destroy_handle(handle);
exit(0);
}
void set_chan_slow(raw1394handle_t handle, int device, int verbose, int chn)
{
int i;
int dig[3];
quadlet_t cmd[2];
dig[2] = (chn % 10);
dig[1] = (chn % 100) / 10;
dig[0] = (chn % 1000) / 100;
if (verbose)
printf("AV/C Command: %d%d%d = Op1=0x%08X Op2=0x%08X Op3=0x%08X\n",
dig[0], dig[1], dig[2],
CTL_CMD0 | dig[0], CTL_CMD0 | dig[1], CTL_CMD0 | dig[2]);
for (i=0; i<3; i++) {
cmd[0] = CTL_CMD0 | dig[i];
cmd[1] = 0x0;
avc1394_transaction_block(handle, device, cmd, 2, RETRY_COUNT_SLOW);
usleep(500000); // small delay for button to register
}
}
// Same as set_chan_slow(), but sends 4 digits instead of 3 (for quicker channel changes on QIP6200-2 / QIP7100-1)
void set_chan_slow_four_digit(raw1394handle_t handle, int device, int verbose, int chn)
{
int i;
int dig[4];
quadlet_t cmd[2];
if (verbose)
printf("chn: %d\n", chn);
dig[3] = (chn % 10);
dig[2] = (chn % 100) / 10;
dig[1] = (chn % 1000) / 100;
dig[0] = (chn % 10000) / 1000;
if (verbose)
printf("AV/C Command: %d%d%d%d = Op1=0x%08X Op2=0x%08X Op3=0x%08X Op4=0x%08X\n",
dig[0], dig[1], dig[2], dig[3],
CTL_CMD0 | dig[0], CTL_CMD0 | dig[1], CTL_CMD0 | dig[2], CTL_CMD0 | dig[3]);
for (i=0; i<4; i++) {
if (verbose)
printf("Sending digit %d\n", dig[i]);
cmd[0] = CTL_CMD0 | dig[i];
cmd[1] = 0x0;
avc1394_transaction_block(handle, device, cmd, 2, RETRY_COUNT_SLOW);
usleep(500000); // small delay for button to register
}
}
void set_chan_fast(raw1394handle_t handle, int device, int verbose, int chn)
{
quadlet_t cmd[3];
cmd[0] = CTL_CMD0 | 0x67;
cmd[1] = (0x04 << 24) | (chn << 8) | 0x000000FF;
cmd[2] = 0xFF << 24;
if (verbose)
printf("AV/C command for channel %d = 0x%08X %08X %08X\n",
chn, cmd[0], cmd[1], cmd[2]);
avc1394_transaction_block(handle, device, cmd, 3, RETRY_COUNT_FAST);
}
void set_power_fast(raw1394handle_t handle, int device, int verbose)
{
quadlet_t cmd[2];
quadlet_t *response;
cmd[0] = ((CTL_CMD0) & 0xffffff00) | AVC1394_PANEL_OPERATION_POWER;
cmd[1] = 0;
response = avc1394_transaction_block(
handle, device, cmd, 2, RETRY_COUNT_FAST);
if (verbose)
{
printf("AV/C command for power = 0x%08X\n", cmd[0]);
if (NULL != response)
printf(" (%x) 0x%x\n", (*response) >> 24, *response);
else
printf(" No response\n");
}
}
/* vim: set expandtab tabstop=4 shiftwidth=4: */
Makefile
TARGET = 6200ch
CFLAGS = -Wall -std=gnu99
PREFIX = /usr/local
BINPATH = ${PREFIX}/bin
all: $(TARGET)
$(TARGET): $(TARGET).c
$(CC) $(CFLAGS) -o $(TARGET) $(TARGET).c -lavc1394 -lrom1394 -lraw1394
install: $(TARGET)
install -m 0755 $(TARGET) ${BINPATH}
uninstall:
rm -f ${BINPATH}/$(TARGET)
clean:
rm -f $(TARGET)
distclean: clean
