--- /dev/null
+/*
+ * global_commands.c
+ * Copyright (C) 2002-2003 Ushodaya Enterprises Limited
+ * Author: Dan Dennedy <dan@dennedy.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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/poll.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <pthread.h>
+
+#include "dvunit.h"
+#include "global_commands.h"
+#include "raw1394util.h"
+#include <libavc1394/rom1394.h>
+#include "log.h"
+
+static dv_unit g_units[MAX_UNITS];
+
+
+/** Return the dv_unit given a numeric index.
+*/
+
+dv_unit dv1394d_get_unit( int n )
+{
+ if (n < MAX_UNITS)
+ return g_units[n];
+ else
+ return NULL;
+}
+
+/** Destroy the dv_unit given its numeric index.
+*/
+
+void dv1394d_delete_unit( int n )
+{
+ if (n < MAX_UNITS)
+ {
+ dv_unit unit = dv1394d_get_unit(n);
+ if (unit != NULL)
+ {
+ dv_unit_close( unit );
+ g_units[ n ] = NULL;
+ dv1394d_log( LOG_NOTICE, "Deleted unit U%d.", n );
+ }
+ }
+}
+
+/** Destroy all allocated units on the server.
+*/
+
+void dv1394d_delete_all_units( void )
+{
+ int i;
+ for (i = 0; i < MAX_UNITS; i++)
+ if ( dv1394d_get_unit(i) != NULL )
+ {
+ dv_unit_close( dv1394d_get_unit(i) );
+ dv1394d_log( LOG_NOTICE, "Deleted unit U%d.", i );
+ }
+}
+
+/** Add a DV virtual vtr to the server.
+*/
+response_codes dv1394d_add_unit( command_argument cmd_arg )
+{
+ int i;
+ int channel = -1;
+ char *guid_str = (char*) cmd_arg->argument;
+ octlet_t guid;
+ uint32_t guid_hi;
+ uint32_t guid_lo;
+
+ sscanf( guid_str, "%08x%08x", &guid_hi, &guid_lo );
+ guid = (octlet_t)guid_hi << 32 | (octlet_t) guid_lo;
+
+ if ( dv_tokeniser_count( cmd_arg->tokeniser ) == 3 )
+ channel = atoi( dv_tokeniser_get_string( cmd_arg->tokeniser, 2 ) );
+
+ /* make sure unit does not already exit */
+ for (i = 0; i < MAX_UNITS; i++)
+ {
+ if (g_units[i] != NULL)
+ if ( dv_unit_get_guid( g_units[i] ) == guid )
+ {
+ dv_response_printf( cmd_arg->response, 1024, "a unit already exists for that node\n\n" );
+ return RESPONSE_ERROR;
+ }
+ }
+
+ for (i = 0; i < MAX_UNITS; i++)
+ {
+ if (g_units[i] == NULL)
+ {
+
+ g_units[ i ] = dv_unit_init( guid, channel );
+ if ( g_units[ i ] == NULL )
+ {
+ dv_response_printf( cmd_arg->response, 1024, "failed to allocate unit\n" );
+ return RESPONSE_ERROR;
+ }
+ g_units[ i ]->unit = i;
+ dv_unit_set_notifier( g_units[ i ], dv_parser_get_notifier( cmd_arg->parser ), cmd_arg->root_dir );
+
+ dv1394d_log( LOG_NOTICE, "added unit %d to send to node %d over channel %d",
+ i, dv_unit_get_nodeid( g_units[i] ), dv_unit_get_channel( g_units[i] ) );
+ dv_response_printf( cmd_arg->response, 10, "U%1d\n\n", i );
+ return RESPONSE_SUCCESS_N;
+ }
+ }
+
+ dv_response_printf( cmd_arg->response, 1024, "no more units can be created\n\n" );
+
+ return RESPONSE_ERROR;
+}
+
+
+/** List all AV/C nodes on the bus.
+*/
+response_codes dv1394d_list_nodes( command_argument cmd_arg )
+{
+ response_codes error = RESPONSE_SUCCESS_N;
+ raw1394handle_t handle;
+ int i, j;
+ char line[1024];
+ octlet_t guid;
+ rom1394_directory dir;
+
+ for ( j = 0; j < raw1394_get_num_ports(); j++ )
+ {
+ handle = raw1394_open(j);
+ for ( i = 0; i < raw1394_get_nodecount(handle); ++i )
+ {
+ rom1394_get_directory( handle, i, &dir);
+ if ( (rom1394_get_node_type(&dir) == ROM1394_NODE_TYPE_AVC) )
+ {
+ guid = rom1394_get_guid(handle, i);
+ if (dir.label != NULL)
+ {
+ snprintf( line, 1023, "%02d %08x%08x \"%s\"\n", i,
+ (quadlet_t) (guid>>32), (quadlet_t) (guid & 0xffffffff), dir.label );
+ } else {
+ snprintf( line, 1023, "%02d %08x%08x \"Unlabeled Node %d\"\n", i,
+ (quadlet_t) (guid>>32), (quadlet_t) (guid & 0xffffffff), i );
+ }
+ dv_response_write( cmd_arg->response, line, strlen(line) );
+ rom1394_free_directory( &dir);
+ }
+ }
+ raw1394_close( handle );
+ }
+ dv_response_write( cmd_arg->response, "\n", 1 );
+ return error;
+}
+
+
+/** List units already added to server.
+*/
+response_codes dv1394d_list_units( command_argument cmd_arg )
+{
+ response_codes error = RESPONSE_SUCCESS_N;
+ char line[1024];
+ int i;
+
+ for (i = 0; i < MAX_UNITS; i++)
+ {
+ if (dv1394d_get_unit(i) != NULL)
+ {
+ snprintf( line, 1023, "U%d %02d %08x%08x %d\n", i, dv_unit_get_nodeid(g_units[i]),
+ (quadlet_t) (dv_unit_get_guid(g_units[i]) >> 32),
+ (quadlet_t) (dv_unit_get_guid(g_units[i]) & 0xffffffff),
+ !dv_unit_is_offline( g_units[i] ) );
+ dv_response_write( cmd_arg->response, line, strlen(line) );
+ }
+ }
+ dv_response_write( cmd_arg->response, "\n", 1 );
+
+ return error;
+}
+
+static int
+filter_files( const struct dirent *de )
+{
+ if ( de->d_name[ 0 ] != '.' )
+ return 1;
+ else
+ return 0;
+}
+
+/** List clips in a directory.
+*/
+response_codes dv1394d_list_clips( command_argument cmd_arg )
+{
+ response_codes error = RESPONSE_BAD_FILE;
+ const char *dir_name = (const char*) cmd_arg->argument;
+ DIR *dir;
+ char fullname[1024];
+ struct dirent **de = NULL;
+ int i, n;
+
+ snprintf( fullname, 1023, "%s%s", cmd_arg->root_dir, dir_name );
+ dir = opendir( fullname );
+ if (dir != NULL)
+ {
+ struct stat info;
+ error = RESPONSE_SUCCESS_N;
+ n = scandir( fullname, &de, filter_files, alphasort );
+ for (i = 0; i < n; i++ )
+ {
+ snprintf( fullname, 1023, "%s%s/%s", cmd_arg->root_dir, dir_name, de[i]->d_name );
+ if ( stat( fullname, &info ) == 0 && S_ISDIR( info.st_mode ) )
+ dv_response_printf( cmd_arg->response, 1024, "\"%s/\"\n", de[i]->d_name );
+ }
+ for (i = 0; i < n; i++ )
+ {
+ snprintf( fullname, 1023, "%s%s/%s", cmd_arg->root_dir, dir_name, de[i]->d_name );
+ if ( lstat( fullname, &info ) == 0 &&
+ ( S_ISREG( info.st_mode ) || ( strstr( fullname, ".clip" ) && info.st_mode | S_IXUSR ) ) )
+ dv_response_printf( cmd_arg->response, 1024, "\"%s\" %llu\n", de[i]->d_name, (unsigned long long) info.st_size );
+ free( de[ i ] );
+ }
+ free( de );
+ closedir( dir );
+ dv_response_write( cmd_arg->response, "\n", 1 );
+ }
+
+ return error;
+}
+
+/** Set a server configuration property.
+*/
+
+response_codes dv1394d_set_global_property( command_argument cmd_arg )
+{
+ char *key = (char*) cmd_arg->argument;
+ char *value = NULL;
+
+ value = strchr( key, '=' );
+ if (value == NULL)
+ return RESPONSE_OUT_OF_RANGE;
+ *value = 0;
+ value++;
+ dv1394d_log( LOG_DEBUG, "SET %s = %s", key, value );
+
+ if ( strncasecmp( key, "root", 1024) == 0 )
+ {
+ int len = strlen(value);
+ int i;
+
+ /* stop all units and unload clips */
+ for (i = 0; i < MAX_UNITS; i++)
+ {
+ if (g_units[i] != NULL)
+ dv_unit_terminate( g_units[i] );
+ }
+
+ /* set the property */
+ strncpy( cmd_arg->root_dir, value, 1023 );
+
+ /* add a trailing slash if needed */
+ if ( cmd_arg->root_dir[ len - 1 ] != '/')
+ {
+ cmd_arg->root_dir[ len ] = '/';
+ cmd_arg->root_dir[ len + 1 ] = '\0';
+ }
+ }
+ else
+ return RESPONSE_OUT_OF_RANGE;
+
+ return RESPONSE_SUCCESS;
+}
+
+/** Get a server configuration property.
+*/
+
+response_codes dv1394d_get_global_property( command_argument cmd_arg )
+{
+ char *key = (char*) cmd_arg->argument;
+
+ if ( strncasecmp( key, "root", 1024) == 0 )
+ {
+ dv_response_write( cmd_arg->response, cmd_arg->root_dir, strlen(cmd_arg->root_dir) );
+ return RESPONSE_SUCCESS_1;
+ }
+ else
+ return RESPONSE_OUT_OF_RANGE;
+
+ return RESPONSE_SUCCESS;
+}
+
+/** IEEE 1394 Bus Reset handler
+
+ This is included here for now due to all the unit management involved.
+*/
+
+static int reset_handler( raw1394handle_t h, unsigned int generation )
+{
+ int i, j, count, retry = 3;
+ int port = (int) raw1394_get_userdata( h );
+
+ raw1394_update_generation( h, generation );
+ dv1394d_log( LOG_NOTICE, "bus reset on port %d", port );
+
+ while ( retry-- > 0 )
+ {
+ raw1394handle_t handle = raw1394_open( port );
+ count = raw1394_get_nodecount( handle );
+
+ if ( count > 0 )
+ {
+ dv1394d_log( LOG_DEBUG, "bus reset, checking units" );
+
+ /* suspend all units on this port */
+ for ( j = MAX_UNITS; j > 0; j-- )
+ {
+ if ( g_units[ j-1 ] != NULL && dv_unit_get_port( g_units[ j-1 ] ) == port )
+ dv_unit_suspend( g_units[ j-1 ] );
+ }
+ dv1394d_log( LOG_DEBUG, "All units are now stopped" );
+
+ /* restore units with known guid, take others offline */
+ for ( j = 0; j < MAX_UNITS; j++ )
+ {
+ if ( g_units[j] != NULL &&
+ ( dv_unit_get_port( g_units[ j ] ) == port || dv_unit_get_port( g_units[ j ] ) == -1 ) )
+ {
+ int found = 0;
+ for ( i = 0; i < count; i++ )
+ {
+ octlet_t guid;
+ dv1394d_log( LOG_DEBUG, "attempting to get guid for node %d", i );
+ guid = rom1394_get_guid( handle, i );
+ if ( guid == g_units[ j ]->guid )
+ {
+ dv1394d_log( LOG_NOTICE, "unit with GUID %08x%08x found",
+ (quadlet_t) (g_units[j]->guid>>32), (quadlet_t) (g_units[j]->guid & 0xffffffff));
+ if ( dv_unit_is_offline( g_units[ j ] ) )
+ dv_unit_online( g_units[ j ] );
+ else
+ dv_unit_restore( g_units[ j ] );
+ found = 1;
+ break;
+ }
+ }
+ if ( found == 0 )
+ dv_unit_offline( g_units[ j ] );
+ }
+ }
+ dv1394d_log( LOG_DEBUG, "completed bus reset handler");
+ raw1394_close( handle );
+ return 0;
+ }
+ raw1394_close( handle );
+ }
+ dv1394d_log( LOG_CRIT, "raw1394 reported zero nodes on the bus!" );
+ return 0;
+}
+
+
+/** One pthread per IEEE 1394 port
+*/
+
+static pthread_t raw1394service_thread[4];
+
+/** One raw1394 handle for each pthread/port
+*/
+
+static raw1394handle_t raw1394service_handle[4];
+
+/** The service thread that polls raw1394 for new events.
+*/
+
+static void* raw1394_service( void *arg )
+{
+ raw1394handle_t handle = (raw1394handle_t) arg;
+ struct pollfd raw1394_poll;
+ raw1394_poll.fd = raw1394_get_fd( handle );
+ raw1394_poll.events = POLLIN;
+ raw1394_poll.revents = 0;
+ while ( 1 )
+ {
+ if ( poll( &raw1394_poll, 1, 200) > 0 )
+ {
+ if ( (raw1394_poll.revents & POLLIN)
+ || (raw1394_poll.revents & POLLPRI) )
+ raw1394_loop_iterate( handle );
+ }
+ pthread_testcancel();
+ }
+
+}
+
+
+/** Start the raw1394 service threads for handling bus reset.
+
+ One thread is launched per port on the system.
+*/
+
+void raw1394_start_service_threads( void )
+{
+ int port;
+ for ( port = 0; port < raw1394_get_num_ports(); port++ )
+ {
+ raw1394service_handle[port] = raw1394_open( port );
+ raw1394_set_bus_reset_handler( raw1394service_handle[port], reset_handler );
+ pthread_create( &(raw1394service_thread[port]), NULL, raw1394_service, raw1394service_handle[port] );
+ }
+ for ( ; port < 4; port++ )
+ raw1394service_handle[port] = NULL;
+}
+
+/** Shutdown all the raw1394 service threads.
+*/
+
+void raw1394_stop_service_threads( void )
+{
+ int i;
+ for ( i = 0; i < 4; i++ )
+ {
+ if ( raw1394service_handle[i] != NULL )
+ {
+ pthread_cancel( raw1394service_thread[i] );
+ pthread_join( raw1394service_thread[i], NULL );
+ raw1394_close( raw1394service_handle[i] );
+ }
+ }
+}
+
+
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