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/* |
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* Copyright (C) 2005-2008 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) version 3 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#include "avc_descriptor.h" |
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#include "avc_descriptor_cmd.h" |
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#include "../general/avc_unit.h" |
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#include "../general/avc_subunit.h" |
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#include "libutil/cmd_serialize.h" |
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#include "libieee1394/ieee1394service.h" |
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#include "libieee1394/configrom.h" |
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#include <cstring> |
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namespace AVC { |
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AVCDescriptorSpecifier::AVCDescriptorSpecifier( enum EType type ) |
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: m_type ( type ) |
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, m_listid_size ( 0 ) |
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, m_objectid_size ( 0 ) |
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, m_entrypos_size ( 0 ) |
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, m_info_block_type ( 0 ) |
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, m_info_block_instance ( 0 ) |
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, m_info_block_position ( 0 ) |
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{ |
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} |
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bool |
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AVCDescriptorSpecifier::serialize( Util::Cmd::IOSSerialize& se ) |
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{ |
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se.write( (byte_t)m_type, "AVCDescriptorSpecifier descriptor_specifier_type" ); |
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switch ( m_type ) { |
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case eIndentifier: |
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// nothing to serialize |
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return true; |
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case eInfoBlockByType: |
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se.write( m_info_block_type, "AVCDescriptorSpecifier info_block_type" ); |
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se.write( m_info_block_instance, "AVCDescriptorSpecifier instance_count" ); |
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return true; |
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case eInfoBlockByPosition: |
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se.write( m_info_block_position, "AVCDescriptorSpecifier info_block_position" ); |
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return true; |
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case eSubunit0x80: |
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// nothing to serialize |
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return true; |
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case eInvalid: |
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default: |
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debugError("Unsupported Descriptor Specifier type: 0x%02X\n",m_type); |
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return false; |
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} |
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} |
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|
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bool |
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AVCDescriptorSpecifier::deserialize( Util::Cmd::IISDeserialize& de ) |
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{ |
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de.read( (byte_t *)&m_type ); |
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switch ( m_type ) { |
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case eIndentifier: |
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// nothing to deserialize |
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return true; |
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case eInfoBlockByType: |
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de.read( &m_info_block_type); |
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de.read( &m_info_block_instance ); |
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case eInfoBlockByPosition: |
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de.read( &m_info_block_position); |
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return true; |
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case eSubunit0x80: |
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// nothing to deserialize |
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return true; |
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case eInvalid: |
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default: |
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debugError("Unsupported Descriptor Specifier type: 0x%02X\n",m_type); |
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return false; |
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} |
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return true; |
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} |
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AVCDescriptorSpecifier* |
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AVCDescriptorSpecifier::clone() const |
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{ |
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return new AVCDescriptorSpecifier( *this ); |
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} |
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//---------------------- |
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AVCDescriptor::AVCDescriptor( Unit* unit ) |
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: IBusData() |
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, m_unit( unit ) |
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, m_subunit ( NULL ) |
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, m_specifier ( AVCDescriptorSpecifier::eInvalid ) |
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, m_data ( NULL ) |
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, m_descriptor_length(0) |
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, m_loaded ( false ) |
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{ |
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} |
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AVCDescriptor::AVCDescriptor( Unit* unit, Subunit* subunit ) |
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: IBusData() |
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, m_unit( unit ) |
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, m_subunit ( subunit ) |
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, m_specifier ( AVCDescriptorSpecifier::eInvalid ) |
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, m_data ( NULL ) |
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, m_descriptor_length(0) |
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, m_loaded ( false ) |
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{ |
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} |
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AVCDescriptor::AVCDescriptor( Unit* unit, Subunit* subunit, |
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AVCDescriptorSpecifier s ) |
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: IBusData() |
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, m_unit( unit ) |
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, m_subunit ( subunit ) |
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, m_specifier ( s ) |
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, m_data ( NULL ) |
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, m_descriptor_length(0) |
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, m_loaded ( false ) |
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{ |
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} |
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AVCDescriptor::~AVCDescriptor() |
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{ |
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if (m_data != NULL) free(m_data); |
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} |
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bool |
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AVCDescriptor::reload() |
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{ |
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m_loaded = false; |
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return load(); |
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} |
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bool |
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AVCDescriptor::load() |
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{ |
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bool result; |
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if (m_loaded) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, "Descriptor already loaded, not re-loading...\n" ); |
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return true; |
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} |
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OpenDescriptorCmd openDescCmd(m_unit->get1394Service()); |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Open descriptor (%s)\n",getDescriptorName()); |
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openDescCmd.setMode( OpenDescriptorCmd::eRead ); |
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openDescCmd.m_specifier=&m_specifier; |
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openDescCmd.setNodeId( m_unit->getConfigRom().getNodeId() ); |
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openDescCmd.setCommandType( AVCCommand::eCT_Control ); |
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openDescCmd.setSubunitType( getSubunitType() ); |
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openDescCmd.setSubunitId( getSubunitId() ); |
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openDescCmd.setVerbose( getVerboseLevel() ); |
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result=openDescCmd.fire(); |
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if (!result || (openDescCmd.getResponse() != AVCCommand::eR_Accepted)) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Could not open descriptor\n"); |
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return false; |
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} |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Read descriptor\n"); |
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ReadDescriptorCmd readDescCmd(m_unit->get1394Service()); |
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readDescCmd.m_specifier=&m_specifier; |
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readDescCmd.setNodeId( m_unit->getConfigRom().getNodeId() ); |
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readDescCmd.setCommandType( AVCCommand::eCT_Control ); |
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readDescCmd.setSubunitType( getSubunitType() ); |
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readDescCmd.setSubunitId( getSubunitId() ); |
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readDescCmd.setVerbose( getVerboseLevel() ); |
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readDescCmd.m_data_length=2; |
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readDescCmd.m_address=0; |
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result=readDescCmd.fire(); |
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if (!result || (readDescCmd.getResponse() != AVCCommand::eR_Accepted)) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Could not read descriptor\n"); |
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return false; |
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} |
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size_t bytes_read=readDescCmd.m_data_length; |
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if (bytes_read < 2) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Descriptor length field not present\n"); |
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return false; |
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} |
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#ifdef DEBUG |
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if(getDebugLevel() >= DEBUG_LEVEL_VERY_VERBOSE) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Read result:\n"); |
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printBufferBytes( DEBUG_LEVEL_VERY_VERBOSE, bytes_read, readDescCmd.m_data ); |
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} |
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#endif |
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// obtain descriptor length |
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m_descriptor_length=(readDescCmd.m_data[0]<<8) + (readDescCmd.m_data[1]); |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Descriptor length: %u\n", m_descriptor_length); |
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if (m_data != NULL) free(m_data); |
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m_data=(byte_t *)calloc(m_descriptor_length, 1); |
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if (m_data == NULL) { |
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debugError("Could not allocate memory for descriptor\n"); |
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return false; |
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} |
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// we reread everything from here |
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bytes_read=0; |
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while(bytes_read<m_descriptor_length) { |
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// read the full descriptor |
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readDescCmd.clear(); |
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readDescCmd.m_specifier=&m_specifier; |
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readDescCmd.setNodeId( m_unit->getConfigRom().getNodeId() ); |
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readDescCmd.setCommandType( AVCCommand::eCT_Control ); |
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readDescCmd.setSubunitType( getSubunitType() ); |
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readDescCmd.setSubunitId( getSubunitId() ); |
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readDescCmd.setVerbose( getVerboseLevel() ); |
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readDescCmd.m_data_length=m_descriptor_length-bytes_read; |
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// account for the length field |
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readDescCmd.m_address=bytes_read+2; |
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result=readDescCmd.fire(); |
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if (!result || (readDescCmd.getResponse() != AVCCommand::eR_Accepted)) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Could not read descriptor data\n"); |
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return false; |
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} |
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// copy the payload |
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|
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if (bytes_read + readDescCmd.m_data_length > m_descriptor_length) { |
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debugWarning("Device returned too much data, truncating\n"); |
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readDescCmd.m_data_length=m_descriptor_length-bytes_read; |
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} |
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debugOutput(DEBUG_LEVEL_VERBOSE, |
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" copying %u bytes to internal buffer offset %lu\n", |
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readDescCmd.m_data_length, bytes_read); |
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memcpy(m_data+bytes_read,readDescCmd.m_data, readDescCmd.m_data_length); |
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bytes_read += readDescCmd.m_data_length; |
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if((readDescCmd.getStatus() != ReadDescriptorCmd::eMoreToRead) |
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&& ( bytes_read<m_descriptor_length )) { |
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debugError(" Still bytes to read but device claims not.\n"); |
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return false; |
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} |
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} |
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//------------- |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Close descriptor\n"); |
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openDescCmd.clear(); |
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openDescCmd.setMode( OpenDescriptorCmd::eClose ); |
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openDescCmd.m_specifier=&m_specifier; |
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openDescCmd.setNodeId( m_unit->getConfigRom().getNodeId() ); |
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openDescCmd.setCommandType( AVCCommand::eCT_Control ); |
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openDescCmd.setSubunitType( getSubunitType() ); |
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openDescCmd.setSubunitId( getSubunitId() ); |
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openDescCmd.setVerbose( getVerboseLevel() ); |
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|
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result=openDescCmd.fire(); |
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if (!result || (openDescCmd.getResponse() != AVCCommand::eR_Accepted)) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Could not close descriptor\n"); |
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return false; |
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} |
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#ifdef DEBUG |
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if(getDebugLevel() >= DEBUG_LEVEL_VERY_VERBOSE) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Descriptor content:\n"); |
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printBufferBytes( DEBUG_LEVEL_VERY_VERBOSE, m_descriptor_length, m_data ); |
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} |
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#endif |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Parse descriptor\n"); |
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// parse the descriptor |
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Util::Cmd::BufferDeserialize de( m_data, m_descriptor_length ); |
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result = deserialize( de ); |
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if (!result) { |
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debugOutput(DEBUG_LEVEL_VERBOSE, " Could not parse descriptor\n"); |
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return false; |
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} |
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|
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#ifdef DEBUG |
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if(getDebugLevel() >= DEBUG_LEVEL_VERY_VERBOSE) { |
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Util::Cmd::StringSerializer se_dbg; |
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serialize( se_dbg ); |
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|
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// output the debug message in smaller chunks to avoid problems |
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// with a max message size |
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unsigned int chars_to_write=se_dbg.getString().size(); |
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unsigned int chars_written=0; |
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while (chars_written<chars_to_write) { |
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debugOutputShort(DEBUG_LEVEL_VERBOSE, "%s\n", |
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se_dbg.getString().substr(chars_written, DEBUG_MAX_MESSAGE_LENGTH).c_str()); |
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chars_written += DEBUG_MAX_MESSAGE_LENGTH-1; |
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} |
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} |
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#endif |
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m_loaded=true; |
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return true; |
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} |
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|
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bool |
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AVCDescriptor::serialize( Util::Cmd::IOSSerialize& se ) |
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{ |
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return true; |
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} |
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|
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bool |
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AVCDescriptor::deserialize( Util::Cmd::IISDeserialize& de ) |
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{ |
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return true; |
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} |
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|
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AVCDescriptor* |
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AVCDescriptor::clone() const |
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{ |
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return new AVCDescriptor( *this ); |
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} |
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|
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ESubunitType |
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AVCDescriptor::getSubunitType() const |
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{ |
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return (m_subunit==NULL?eST_Unit:m_subunit->getSubunitType()); |
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} |
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|
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subunit_id_t |
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AVCDescriptor::getSubunitId() const |
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{ |
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return (m_subunit==NULL?0xFF:m_subunit->getSubunitId()); |
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} |
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|
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bool |
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AVCDescriptor::setVerboseLevel( int verboseLevel ) |
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{ |
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setDebugLevel(verboseLevel); |
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return true; |
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} |
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|
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int |
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AVCDescriptor::getVerboseLevel() |
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{ |
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return getDebugLevel(); |
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} |
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|
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void |
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AVCDescriptor::show() |
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{ |
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|
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} |
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|
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void |
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AVCDescriptor::printBufferBytes( unsigned int level, size_t length, byte_t* buffer ) const |
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{ |
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|
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for ( unsigned int i=0; i < length; ++i ) { |
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if ( ( i % 16 ) == 0 ) { |
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if ( i > 0 ) { |
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debugOutputShort(level,"\n"); |
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} |
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debugOutputShort(level," %4d: ",i*16); |
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} |
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debugOutputShort(level,"%02X ",buffer[i]); |
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} |
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debugOutputShort(level,"\n"); |
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} |
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|
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// --- Info block |
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AVCInfoBlock::AVCInfoBlock( ) |
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: IBusData() |
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, m_compound_length ( 0 ) |
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, m_info_block_type ( 0 ) |
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, m_primary_field_length ( 0 ) |
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, m_supported_info_block_type ( 0xFFFF ) |
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{} |
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|
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AVCInfoBlock::AVCInfoBlock( uint16_t supported_type ) |
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: IBusData() |
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, m_compound_length ( 0 ) |
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, m_info_block_type ( 0 ) |
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, m_primary_field_length ( 0 ) |
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, m_supported_info_block_type ( supported_type ) |
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{} |
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|
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bool |
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AVCInfoBlock::serialize( Util::Cmd::IOSSerialize& se ) |
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{ |
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bool result=true; |
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if((m_supported_info_block_type != 0xFFFF) |
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&& (m_info_block_type != m_supported_info_block_type)) { |
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debugError("%s: Incorrect block type: 0x%04X, should be 0x%04X\n", |
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getInfoBlockName(), m_info_block_type, m_supported_info_block_type); |
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return false; |
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} |
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result &= se.write( m_compound_length, "AVCInfoBlock m_compound_length" ); |
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result &= se.write( m_info_block_type, "AVCInfoBlock m_info_block_type" ); |
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result &= se.write( m_primary_field_length, "AVCInfoBlock m_primary_field_length" ); |
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return result; |
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} |
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420 |
|
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bool |
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AVCInfoBlock::deserialize( Util::Cmd::IISDeserialize& de ) |
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{ |
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bool result=true; |
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result &= de.read( &m_compound_length ); |
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426 |
result &= de.read( &m_info_block_type ); |
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427 |
result &= de.read( &m_primary_field_length ); |
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428 |
|
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if((m_supported_info_block_type != 0xFFFF) |
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&& (m_info_block_type != m_supported_info_block_type)) { |
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debugError("%s: Incorrect block type: 0x%04X, should be 0x%04X\n", |
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432 |
getInfoBlockName(), m_info_block_type, m_supported_info_block_type); |
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return false; |
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434 |
} |
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435 |
|
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436 |
debugOutput(DEBUG_LEVEL_VERBOSE, "%s length=0x%04X (%u), type=0x%04X, primary field length=0x%04X (%u)\n", |
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437 |
getInfoBlockName(), m_compound_length, m_compound_length, |
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438 |
m_info_block_type, m_primary_field_length, m_primary_field_length); |
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439 |
|
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return result; |
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441 |
} |
---|
442 |
|
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443 |
bool |
---|
444 |
AVCInfoBlock::peekBlockType( Util::Cmd::IISDeserialize& de, uint16_t *type ) |
---|
445 |
{ |
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446 |
return de.peek(type, 2); |
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447 |
} |
---|
448 |
|
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449 |
bool |
---|
450 |
AVCInfoBlock::peekBlockLength( Util::Cmd::IISDeserialize& de, uint16_t *type ) |
---|
451 |
{ |
---|
452 |
return de.peek(type, 0); |
---|
453 |
} |
---|
454 |
|
---|
455 |
AVCInfoBlock* |
---|
456 |
AVCInfoBlock::clone() const |
---|
457 |
{ |
---|
458 |
return new AVCInfoBlock( *this ); |
---|
459 |
} |
---|
460 |
bool |
---|
461 |
AVCInfoBlock::setVerbose( int verboseLevel ) |
---|
462 |
{ |
---|
463 |
setDebugLevel(verboseLevel); |
---|
464 |
return true; |
---|
465 |
} |
---|
466 |
|
---|
467 |
int |
---|
468 |
AVCInfoBlock::getVerboseLevel() |
---|
469 |
{ |
---|
470 |
return getDebugLevel(); |
---|
471 |
} |
---|
472 |
|
---|
473 |
void |
---|
474 |
AVCInfoBlock::show() |
---|
475 |
{ |
---|
476 |
|
---|
477 |
} |
---|
478 |
|
---|
479 |
// --------- |
---|
480 |
|
---|
481 |
//FIXME: find out the correct id for this |
---|
482 |
AVCRawTextInfoBlock::AVCRawTextInfoBlock( ) |
---|
483 |
: AVCInfoBlock( 0x000A ) |
---|
484 |
{} |
---|
485 |
|
---|
486 |
AVCRawTextInfoBlock::~AVCRawTextInfoBlock( ) |
---|
487 |
{ |
---|
488 |
clear(); |
---|
489 |
} |
---|
490 |
|
---|
491 |
bool |
---|
492 |
AVCRawTextInfoBlock::clear() |
---|
493 |
{ |
---|
494 |
return true; |
---|
495 |
} |
---|
496 |
|
---|
497 |
bool |
---|
498 |
AVCRawTextInfoBlock::serialize( Util::Cmd::IOSSerialize& se ) |
---|
499 |
{ |
---|
500 |
bool result=true; |
---|
501 |
result &= AVCInfoBlock::serialize(se); |
---|
502 |
if (m_text.size()) { |
---|
503 |
se.write(m_text.c_str(),m_text.size(), "AVCRawTextInfoBlock text"); |
---|
504 |
} |
---|
505 |
return result; |
---|
506 |
} |
---|
507 |
|
---|
508 |
bool |
---|
509 |
AVCRawTextInfoBlock::deserialize( Util::Cmd::IISDeserialize& de ) |
---|
510 |
{ |
---|
511 |
bool result=true; |
---|
512 |
result &= AVCInfoBlock::deserialize(de); |
---|
513 |
|
---|
514 |
// note that the pointer returned by de.read is not valid outside this function |
---|
515 |
// but since we add it to m_text it's not a problem |
---|
516 |
char *txt; |
---|
517 |
result &= de.read(&txt,m_compound_length-4); |
---|
518 |
m_text.clear(); |
---|
519 |
m_text.append(txt); |
---|
520 |
|
---|
521 |
debugOutput(DEBUG_LEVEL_VERBOSE, "Read AVCRawTextInfoBlock: '%s'\n", m_text.c_str()); |
---|
522 |
|
---|
523 |
return result; |
---|
524 |
} |
---|
525 |
|
---|
526 |
// --------- |
---|
527 |
|
---|
528 |
AVCNameInfoBlock::AVCNameInfoBlock( ) |
---|
529 |
: AVCInfoBlock( 0x000B ) |
---|
530 |
{} |
---|
531 |
|
---|
532 |
AVCNameInfoBlock::~AVCNameInfoBlock( ) |
---|
533 |
{ |
---|
534 |
clear(); |
---|
535 |
} |
---|
536 |
|
---|
537 |
bool |
---|
538 |
AVCNameInfoBlock::clear() |
---|
539 |
{ |
---|
540 |
return true; |
---|
541 |
} |
---|
542 |
|
---|
543 |
bool |
---|
544 |
AVCNameInfoBlock::serialize( Util::Cmd::IOSSerialize& se ) |
---|
545 |
{ |
---|
546 |
bool result=true; |
---|
547 |
result &= AVCInfoBlock::serialize(se); |
---|
548 |
|
---|
549 |
if (m_text.size()) { |
---|
550 |
result &= se.write((uint16_t)0x0000, "AVCNameInfoBlock unknown"); |
---|
551 |
result &= se.write((uint16_t)0x0000, "AVCNameInfoBlock unknown"); |
---|
552 |
result &= se.write((uint16_t)0x0000, "AVCNameInfoBlock unknown length"); |
---|
553 |
result &= se.write((uint16_t)0x0000, "AVCNameInfoBlock unknown"); |
---|
554 |
result &= se.write((uint16_t)m_text.size(), "AVCNameInfoBlock text length"); |
---|
555 |
|
---|
556 |
se.write(m_text.c_str(),m_text.size(), "AVCNameInfoBlock text"); |
---|
557 |
} |
---|
558 |
return result; |
---|
559 |
} |
---|
560 |
|
---|
561 |
bool |
---|
562 |
AVCNameInfoBlock::deserialize( Util::Cmd::IISDeserialize& de ) |
---|
563 |
{ |
---|
564 |
bool result=true; |
---|
565 |
result &= AVCInfoBlock::deserialize(de); |
---|
566 |
|
---|
567 |
// FIXME: get the spec somewhere to do this correctly |
---|
568 |
uint16_t dummy16; |
---|
569 |
uint16_t length1; |
---|
570 |
uint16_t text_length; |
---|
571 |
|
---|
572 |
result &= de.read(&dummy16); |
---|
573 |
result &= de.read(&dummy16); |
---|
574 |
result &= de.read(&length1); |
---|
575 |
result &= de.read(&dummy16); |
---|
576 |
result &= de.read(&text_length); |
---|
577 |
|
---|
578 |
// note that the pointer returned by de.read is not valid outside this function |
---|
579 |
// but since we add it to m_text it's not a problem |
---|
580 |
char *txt; |
---|
581 |
result &= de.read(&txt,text_length); |
---|
582 |
m_text.clear(); |
---|
583 |
m_text.append(txt); |
---|
584 |
|
---|
585 |
debugOutput(DEBUG_LEVEL_VERBOSE, "Read AVCNameInfoBlock: '%s'\n", m_text.c_str()); |
---|
586 |
|
---|
587 |
return result; |
---|
588 |
} |
---|
589 |
|
---|
590 |
} |
---|