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/* |
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* Copyright (C) 2005-2007 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 3 of the License, or |
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* (at your option) any later version. |
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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 "Port.h" |
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#include "PortManager.h" |
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#include <stdlib.h> |
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#include <assert.h> |
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namespace Streaming { |
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IMPL_DEBUG_MODULE( Port, Port, DEBUG_LEVEL_NORMAL ); |
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Port::Port(PortManager& m, std::string name, |
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enum E_PortType porttype, enum E_Direction direction, enum E_DataType d) |
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: m_Name( name ) |
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, m_disabled( true ) |
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, m_buffersize( 0 ) |
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, m_eventsize( 0 ) |
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, m_DataType( d ) |
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, m_PortType( porttype ) |
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, m_Direction( direction ) |
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, m_buffer( NULL ) |
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, m_manager( m ) |
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, m_State( E_Created ) |
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{ |
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m_manager.registerPort(this); |
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} |
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Port::~Port() { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "deleting port %s\n", getName().c_str()); |
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m_manager.unregisterPort(this); |
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} |
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/** |
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* The idea is that you set all port parameters, and then initialize the port. |
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* This allocates all resources and makes the port usable. However, you can't |
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* change the port properties anymore after this. |
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* |
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* @return true if successfull. false if not (all resources are freed). |
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*/ |
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bool Port::init() { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Initialize port %s\n", m_Name.c_str()); |
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if (m_State != E_Created) { |
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debugFatal("Port (%s) not in E_Created state: %d\n", m_Name.c_str(), m_State); |
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return false; |
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} |
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if (m_buffersize == 0) { |
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debugFatal("Cannot initialize a port with buffersize=0\n"); |
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return false; |
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} |
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if (m_buffer == NULL) { |
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debugFatal("Cannot initialize a port with no attached buffer\n"); |
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return false; |
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} |
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m_eventsize = getEventSize(); // this won't change, so cache it |
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m_State = E_Initialized; |
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return true; |
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} |
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bool Port::reset() { |
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return true; |
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} |
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bool Port::setName(std::string name) { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Setting name to %s for port %s\n",name.c_str(),m_Name.c_str()); |
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if (m_State != E_Created) { |
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debugFatal("Port (%s) not in E_Created state: %d\n",m_Name.c_str(),m_State); |
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return false; |
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} |
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m_Name=name; |
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return true; |
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} |
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bool Port::setBufferSize(unsigned int newsize) { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Setting buffersize to %d for port %s\n",newsize,m_Name.c_str()); |
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if (m_State != E_Created) { |
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debugFatal("Port (%s) not in E_Created state: %d\n",m_Name.c_str(),m_State); |
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return false; |
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} |
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m_buffersize=newsize; |
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return true; |
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} |
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unsigned int Port::getEventSize() { |
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switch (m_DataType) { |
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case E_Float: |
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return sizeof(float); |
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case E_Int24: // 24 bit 2's complement, packed in a 32bit integer (LSB's) |
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return sizeof(int32_t); |
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case E_MidiEvent: |
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return sizeof(uint32_t); |
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case E_ControlEvent: |
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return sizeof(uint32_t); |
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default: |
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return 0; |
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} |
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} |
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bool Port::setDataType(enum E_DataType d) { |
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debugOutput( DEBUG_LEVEL_VERBOSE, "Setting datatype to %d for port %s\n",(int) d,m_Name.c_str()); |
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if (m_State != E_Created) { |
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debugFatal("Port (%s) not in E_Created state: %d\n",m_Name.c_str(),m_State); |
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return false; |
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} |
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// do some sanity checks |
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bool type_is_ok=false; |
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switch (m_PortType) { |
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case E_Audio: |
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if(d == E_Int24) type_is_ok=true; |
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if(d == E_Float) type_is_ok=true; |
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break; |
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case E_Midi: |
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if(d == E_MidiEvent) type_is_ok=true; |
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break; |
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case E_Control: |
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if(d == E_ControlEvent) type_is_ok=true; |
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break; |
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default: |
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break; |
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} |
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if(!type_is_ok) { |
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debugFatal("Datatype not supported by this type of port!\n"); |
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return false; |
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} |
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m_DataType=d; |
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return true; |
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} |
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// buffer handling api's for pointer buffers |
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/** |
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* Get the buffer address |
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* |
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* @param buff |
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*/ |
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void *Port::getBufferAddress() { |
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return m_buffer; |
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}; |
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/** |
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* Set the external buffer address. |
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* |
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* @param buff |
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*/ |
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void Port::setBufferAddress(void *buff) { |
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m_buffer=buff; |
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} |
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/// Enable the port. (this can be called anytime) |
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void |
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Port::enable() { |
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debugOutput(DEBUG_LEVEL_VERBOSE, "Enabling port %s...\n",m_Name.c_str()); |
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m_disabled=false; |
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} |
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/// Disable the port. (this can be called anytime) |
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void |
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Port::disable() { |
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debugOutput(DEBUG_LEVEL_VERBOSE, "Disabling port %s...\n",m_Name.c_str()); |
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m_disabled=false; |
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} |
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void Port::show() { |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Name : %s\n", m_Name.c_str()); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Enabled? : %d\n", m_disabled); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"State? : %d\n", m_State); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Buffer Size : %d\n", m_buffersize); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Event Size : %d\n", m_eventsize); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Data Type : %d\n", m_DataType); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Port Type : %d\n", m_PortType); |
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debugOutput(DEBUG_LEVEL_VERBOSE,"Direction : %d\n", m_Direction); |
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} |
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void Port::setVerboseLevel(int l) { |
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setDebugLevel(l); |
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} |
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} |
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