/*
* Copyright (C) 2005-2011 by Jonathan Woithe
* Copyright (C) 2005-2008 by Pieter Palmers
*
* This file is part of FFADO
* FFADO = Free Firewire (pro-)audio drivers for linux
*
* FFADO is based upon FreeBoB.
*
* 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) version 3 of the License.
*
* 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, see .
*
*/
#warning RME support is at an early development stage and is not functional
#include "config.h"
#include "rme/rme_avdevice.h"
#include "rme/fireface_def.h"
#include "rme/fireface_settings_ctrls.h"
#include "libieee1394/configrom.h"
#include "libieee1394/ieee1394service.h"
#include "libieee1394/IsoHandlerManager.h"
#include "debugmodule/debugmodule.h"
#include "libstreaming/rme/RmePort.h"
#include "devicemanager.h"
#include
#include
#include
#include "libutil/ByteSwap.h"
#include
#include
#include
// Known values for the unit version of RME devices
#define RME_UNITVERSION_FF800 0x0001
#define RME_UNITVERSION_FF400 0x0002
namespace Rme {
// The RME devices expect async packet data in little endian format (as
// opposed to bus order, which is big endian). Therefore define our own
// 32-bit byteswap function to do this.
#if __BYTE_ORDER == __BIG_ENDIAN
static inline uint32_t
ByteSwapToDevice32(uint32_t d)
{
return byteswap_32(d);
}
ByteSwapFromDevice32(uint32_t d)
{
return byteswap_32(d);
}
#else
static inline uint32_t
ByteSwapToDevice32(uint32_t d)
{
return d;
}
static inline uint32_t
ByteSwapFromDevice32(uint32_t d)
{
return d;
}
#endif
Device::Device( DeviceManager& d,
std::auto_ptr( configRom ))
: FFADODevice( d, configRom )
, m_rme_model( RME_MODEL_NONE )
, num_channels( 0 )
, frames_per_packet( 0 )
, speed800( 0 )
, iso_tx_channel( -1 )
, iso_rx_channel( -1 )
, m_receiveProcessor( NULL )
, m_transmitProcessor( NULL )
, m_MixerContainer( NULL )
, m_ControlContainer( NULL )
{
debugOutput( DEBUG_LEVEL_VERBOSE, "Created Rme::Device (NodeID %d)\n",
getConfigRom().getNodeId() );
}
Device::~Device()
{
delete m_receiveProcessor;
delete m_transmitProcessor;
if (iso_tx_channel>=0 && !get1394Service().freeIsoChannel(iso_tx_channel)) {
debugOutput(DEBUG_LEVEL_VERBOSE, "Could not free tx iso channel %d\n", iso_tx_channel);
}
if (iso_rx_channel>=0 && !get1394Service().freeIsoChannel(iso_rx_channel)) {
debugOutput(DEBUG_LEVEL_VERBOSE, "Could not free rx iso channel %d\n", iso_rx_channel);
}
destroyMixer();
if (dev_config != NULL) {
switch (rme_shm_close(dev_config)) {
case RSO_CLOSE:
debugOutput( DEBUG_LEVEL_VERBOSE, "Configuration shared data object closed\n");
break;
case RSO_CLOSE_DELETE:
debugOutput( DEBUG_LEVEL_VERBOSE, "Configuration shared data object closed and deleted (no other users)\n");
break;
}
}
}
bool
Device::buildMixer() {
signed int i;
bool result = true;
destroyMixer();
debugOutput(DEBUG_LEVEL_VERBOSE, "Building an RME mixer...\n");
// Non-mixer device controls
m_ControlContainer = new Control::Container(this, "Control");
if (!m_ControlContainer) {
debugError("Could not create control container\n");
destroyMixer();
return false;
}
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_INFO_MODEL, 0,
"Model", "Model ID", ""));
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_INFO_TCO_PRESENT, 0,
"TCO_present", "TCO is present", ""));
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_PHANTOM_SW, 0,
"Phantom", "Phantom switches", ""));
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_INPUT_LEVEL, 0,
"Input_level", "Input level", ""));
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_OUTPUT_LEVEL, 0,
"Output_level", "Output level", ""));
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_PHONES_LEVEL, 0,
"Phones_level", "Phones level", ""));
if (m_rme_model == RME_MODEL_FIREFACE400) {
// Instrument input options
for (i=3; i<=4; i++) {
char path[32], desc[64];
snprintf(path, sizeof(path), "Chan%d_opt_instr", i);
snprintf(desc, sizeof(desc), "Chan%d instrument option", i);
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_FF400_INSTR_SW, i,
path, desc, ""));
snprintf(path, sizeof(path), "Chan%d_opt_pad", i);
snprintf(desc, sizeof(desc), "Chan%d pad option", i);
result &= m_ControlContainer->addElement(
new RmeSettingsCtrl(*this, RME_CTRL_FF400_PAD_SW, i,
path, desc, ""));
}
// Input/output gains
result &= m_ControlContainer->addElement(
new RmeSettingsMatrixCtrl(*this, RME_MATRIXCTRL_GAINS, "Gains"));
}
/* Mixer controls */
m_MixerContainer = new Control::Container(this, "Mixer");
if (!m_MixerContainer) {
debugError("Could not create mixer container\n");
destroyMixer();
return false;
}
result &= m_MixerContainer->addElement(
new RmeSettingsMatrixCtrl(*this, RME_MATRIXCTRL_INPUT_FADER, "InputFaders"));
result &= m_MixerContainer->addElement(
new RmeSettingsMatrixCtrl(*this, RME_MATRIXCTRL_PLAYBACK_FADER, "PlaybackFaders"));
result &= m_MixerContainer->addElement(
new RmeSettingsMatrixCtrl(*this, RME_MATRIXCTRL_OUTPUT_FADER, "OutputFaders"));
if (!result) {
debugWarning("One or more device control/mixer elements could not be created\n");
destroyMixer();
return false;
}
if (!addElement(m_ControlContainer) || !addElement(m_MixerContainer)) {
debugWarning("Could not register controls/mixer to device\n");
// clean up
destroyMixer();
return false;
}
return true;
}
bool
Device::destroyMixer() {
bool ret = true;
debugOutput(DEBUG_LEVEL_VERBOSE, "destroy mixer...\n");
if (m_MixerContainer == NULL) {
debugOutput(DEBUG_LEVEL_VERBOSE, "no mixer to destroy...\n");
} else
if (!deleteElement(m_MixerContainer)) {
debugError("Mixer present but not registered to the avdevice\n");
ret = false;
} else {
// remove and delete (as in free) child control elements
m_MixerContainer->clearElements(true);
delete m_MixerContainer;
m_MixerContainer = NULL;
}
// remove control container
if (m_ControlContainer == NULL) {
debugOutput(DEBUG_LEVEL_VERBOSE, "no controls to destroy...\n");
} else
if (!deleteElement(m_ControlContainer)) {
debugError("Controls present but not registered to the avdevice\n");
ret = false;
} else {
// remove and delete (as in free) child control elements
m_ControlContainer->clearElements(true);
delete m_ControlContainer;
m_ControlContainer = NULL;
}
return false;
}
bool
Device::probe( Util::Configuration& c, ConfigRom& configRom, bool generic )
{
if (generic) {
return false;
} else {
// check if device is in supported devices list. Note that the RME
// devices use the unit version to identify the individual devices.
// To avoid having to extend the configuration file syntax to
// include this at this point, we'll use the configuration file
// model ID to test against the device unit version. This can be
// tidied up if the configuration file is extended at some point to
// include the unit version.
unsigned int vendorId = configRom.getNodeVendorId();
unsigned int unitVersion = configRom.getUnitVersion();
Util::Configuration::VendorModelEntry vme = c.findDeviceVME( vendorId, unitVersion );
return c.isValid(vme) && vme.driver == Util::Configuration::eD_RME;
}
}
FFADODevice *
Device::createDevice(DeviceManager& d, std::auto_ptr( configRom ))
{
return new Device(d, configRom );
}
bool
Device::discover()
{
signed int i;
unsigned int vendorId = getConfigRom().getNodeVendorId();
// See note in Device::probe() about why we use the unit version here.
unsigned int unitVersion = getConfigRom().getUnitVersion();
Util::Configuration &c = getDeviceManager().getConfiguration();
Util::Configuration::VendorModelEntry vme = c.findDeviceVME( vendorId, unitVersion );
if (c.isValid(vme) && vme.driver == Util::Configuration::eD_RME) {
debugOutput( DEBUG_LEVEL_VERBOSE, "found %s %s\n",
vme.vendor_name.c_str(),
vme.model_name.c_str());
} else {
debugWarning("Device '%s %s' unsupported by RME driver (no generic RME support)\n",
getConfigRom().getVendorName().c_str(), getConfigRom().getModelName().c_str());
}
if (unitVersion == RME_UNITVERSION_FF800) {
m_rme_model = RME_MODEL_FIREFACE800;
} else
if (unitVersion == RME_MODEL_FIREFACE400) {
m_rme_model = RME_MODEL_FIREFACE400;
} else {
debugError("Unsupported model\n");
return false;
}
// Set up the shared data object for configuration data
i = rme_shm_open(&dev_config);
if (i == RSO_OPEN_CREATED) {
debugOutput( DEBUG_LEVEL_VERBOSE, "New configuration shared data object created\n");
} else
if (i == RSO_OPEN_ATTACHED) {
debugOutput( DEBUG_LEVEL_VERBOSE, "Attached to existing configuration shared data object\n");
}
if (dev_config == NULL) {
debugOutput( DEBUG_LEVEL_WARNING, "Could not create/access shared configuration memory object, using process-local storage\n");
memset(&local_dev_config_obj, 0, sizeof(local_dev_config_obj));
dev_config = &local_dev_config_obj;
}
settings = &dev_config->settings;
tco_settings = &dev_config->tco_settings;
// If device is FF800, check to see if the TCO is fitted
if (m_rme_model == RME_MODEL_FIREFACE800) {
dev_config->tco_present = (read_tco(NULL, 0) == 0);
}
debugOutput(DEBUG_LEVEL_VERBOSE, "TCO present: %s\n",
dev_config->tco_present?"yes":"no");
init_hardware();
if (!buildMixer()) {
debugWarning("Could not build mixer\n");
}
// This is just for testing
read_device_flash_settings(NULL);
return true;
}
int
Device::getSamplingFrequency( ) {
// Retrieve the current sample rate. For practical purposes this
// is the software rate currently in use.
return dev_config->software_freq;
}
int
Device::getConfigurationId()
{
return 0;
}
bool
Device::setDDSFrequency( int dds_freq )
{
// Set a fixed DDS frequency. If the device is the clock master this
// will immediately be copied to the hardware DDS register. Otherwise
// it will take effect as required at the time the sampling rate is
// changed or streaming is started.
// If the device is streaming, the new DDS rate must have the same
// multiplier as the software sample rate
if (hardware_is_streaming()) {
if (multiplier_of_freq(dds_freq) != multiplier_of_freq(dev_config->software_freq))
return false;
}
dev_config->dds_freq = dds_freq;
if (settings->clock_mode == FF_STATE_CLOCKMODE_MASTER) {
if (set_hardware_dds_freq(dds_freq) != 0)
return false;
}
return true;
}
bool
Device::setSamplingFrequency( int samplingFrequency )
{
// Request a sampling rate on behalf of software. Software is limited
// to sample rates of 32k, 44.1k, 48k and the 2x/4x multiples of these.
// The user may lock the device to a much wider range of frequencies via
// the explicit DDS controls in the control panel. If the explicit DDS
// control is active the software is limited to the "standard" speeds
// corresponding to the multiplier in use by the DDS.
//
// Similarly, if the device is externally clocked the software is
// limited to the external clock frequency.
//
// Otherwise the software has free choice of the software speeds noted
// above.
bool ret = -1;
signed int i, j;
signed int mult[3] = {1, 2, 4};
signed int base_freq[3] = {32000, 44100, 48000};
signed int freq = samplingFrequency;
FF_state_t state;
signed int fixed_freq = 0;
get_hardware_state(&state);
// If device is locked to a frequency via external clock, explicit
// setting of the DDS or by virtue of streaming being active, get that
// frequency.
if (state.clock_mode == FF_STATE_CLOCKMODE_AUTOSYNC) {
// FIXME: if synced to TCO, is autosync_freq valid?
fixed_freq = state.autosync_freq;
} else
if (dev_config->dds_freq > 0) {
fixed_freq = dev_config->dds_freq;
} else
if (hardware_is_streaming()) {
fixed_freq = dev_config->software_freq;
}
// If the device is running to a fixed frequency, software can only
// request frequencies with the same multiplier. Similarly, the
// multiplier is locked in "master" clock mode if the device is
// streaming.
if (fixed_freq > 0) {
signed int fixed_mult = multiplier_of_freq(fixed_freq);
if (multiplier_of_freq(freq) != multiplier_of_freq(fixed_freq))
return -1;
for (j=0; j<3; j++) {
if (freq == base_freq[j]*fixed_mult) {
ret = 0;
break;
}
}
} else {
for (i=0; i<3; i++) {
for (j=0; j<3; j++) {
if (freq == base_freq[j]*mult[i]) {
ret = 0;
break;
}
}
}
}
// If requested frequency is unavailable, return -1
if (ret == -1)
return false;
// If a DDS frequency has been explicitly requested this is always
// used to programm the hardware DDS regardless of the rate requested
// by the software. Otherwise we use the requested sampling rate.
if (dev_config->dds_freq > 0)
freq = dev_config->dds_freq;
if (set_hardware_dds_freq(freq) != 0)
return false;
dev_config->software_freq = samplingFrequency;
return true;
}
std::vector
Device::getSupportedSamplingFrequencies()
{
std::vector frequencies;
signed int i, j;
signed int mult[3] = {1, 2, 4};
signed int freq[3] = {32000, 44100, 48000};
FF_state_t state;
get_hardware_state(&state);
// Generate the list of supported frequencies. If the device is
// externally clocked the frequency is limited to the external clock
// frequency. If the device is running the multiplier is fixed.
if (state.clock_mode == FF_STATE_CLOCKMODE_AUTOSYNC) {
// FIXME: if synced to TCO, is autosync_freq valid?
frequencies.push_back(state.autosync_freq);
} else
if (state.is_streaming) {
unsigned int fixed_mult = multiplier_of_freq(dev_config->software_freq);
for (j=0; j<3; j++) {
frequencies.push_back(freq[j]*fixed_mult);
}
} else {
for (i=0; i<3; i++) {
for (j=0; j<3; j++) {
frequencies.push_back(freq[j]*mult[i]);
}
}
}
return frequencies;
}
FFADODevice::ClockSourceVector
Device::getSupportedClockSources() {
FFADODevice::ClockSourceVector r;
return r;
}
bool
Device::setActiveClockSource(ClockSource s) {
return false;
}
FFADODevice::ClockSource
Device::getActiveClockSource() {
ClockSource s;
return s;
}
bool
Device::lock() {
return true;
}
bool
Device::unlock() {
return true;
}
void
Device::showDevice()
{
unsigned int vendorId = getConfigRom().getNodeVendorId();
unsigned int modelId = getConfigRom().getModelId();
Util::Configuration &c = getDeviceManager().getConfiguration();
Util::Configuration::VendorModelEntry vme = c.findDeviceVME( vendorId, modelId );
debugOutput(DEBUG_LEVEL_VERBOSE,
"%s %s at node %d\n", vme.vendor_name.c_str(), vme.model_name.c_str(), getNodeId());
}
bool
Device::prepare() {
signed int mult, bandwidth;
signed int freq, init_samplerate;
signed int err = 0;
unsigned int stat[4];
debugOutput(DEBUG_LEVEL_NORMAL, "Preparing Device...\n" );
// If there is no iso data to send in a given cycle the RMEs simply
// don't send anything. This is in contrast to most other interfaces
// which at least send an empty packet. As a result the IsoHandler
// contains code which detects missing packets as dropped packets.
// For RME devices we must turn this test off since missing packets
// are in fact to be expected.
get1394Service().getIsoHandlerManager().setMissedCyclesOK(true);
freq = getSamplingFrequency();
if (freq <= 0) {
debugOutput(DEBUG_LEVEL_ERROR, "Can't continue: sampling frequency not set\n");
return false;
}
mult = freq<68100?1:(freq<136200?2:4);
frames_per_packet = getFramesPerPacket();
// The number of active channels depends on sample rate and whether
// bandwidth limitation is active. First set up the number of analog
// channels (which differs between devices), then add SPDIF channels if
// relevant. Finally, the number of channels available from each ADAT
// interface depends on sample rate: 0 at 4x, 4 at 2x and 8 at 1x.
if (m_rme_model == RME_MODEL_FIREFACE800)
num_channels = 10;
else
num_channels = 8;
if (settings->limit_bandwidth != FF_SWPARAM_BWLIMIT_ANALOG_ONLY)
num_channels += 2;
if (settings->limit_bandwidth==FF_SWPARAM_BWLIMIT_SEND_ALL_CHANNELS)
num_channels += (mult==4?0:(mult==2?4:8));
if (m_rme_model==RME_MODEL_FIREFACE800 &&
settings->limit_bandwidth==FF_SWPARAM_BWLIMIT_SEND_ALL_CHANNELS)
num_channels += (mult==4?0:(mult==2?4:8));
// Bandwidth is calculated here. For the moment we assume the device
// is connected at S400, so 1 allocation unit is 1 transmitted byte.
// There is 25 allocation units of protocol overhead per packet. Each
// channel of audio data is sent/received as a 32 bit integer.
bandwidth = 25 + num_channels*4*frames_per_packet;
// Both the FF400 and FF800 require we allocate a tx iso channel and
// then initialise the device. Device status is then read at least once
// regardless of which interface is in use. The rx channel is then
// allocated for the FF400 or acquired from the device in the case of
// the FF800. Even though the FF800 chooses the rx channel it does not
// handle the bus-level channel/bandwidth allocation so we must do that
// here.
if (iso_tx_channel < 0) {
iso_tx_channel = get1394Service().allocateIsoChannelGeneric(bandwidth);
}
if (iso_tx_channel < 0) {
debugFatal("Could not allocate iso tx channel\n");
return false;
}
err = hardware_init_streaming(dev_config->hardware_freq, iso_tx_channel) != 0;
if (err) {
debugFatal("Could not intialise device streaming system\n");
}
if (err == 0) {
signed int i;
for (i=0; i<100; i++) {
err = (get_hardware_streaming_status(stat, 4) != 0);
if (err) {
debugFatal("error reading status register\n");
break;
}
// FIXME: this can probably go once the driver matures.
debugOutput(DEBUG_LEVEL_NORMAL, "init stat: %08x %08x %08x %08x\n",
stat[0], stat[1], stat[2], stat[3]);
if (m_rme_model == RME_MODEL_FIREFACE400) {
iso_rx_channel = get1394Service().allocateIsoChannelGeneric(bandwidth);
break;
}
// The Fireface-800 chooses its tx channel (our rx channel).
if (stat[2] == 0xffffffff) {
// Device not ready; wait 5 ms and try again
usleep(5000);
} else {
iso_rx_channel = stat[2] & 63;
iso_rx_channel = get1394Service().allocateFixedIsoChannelGeneric(iso_rx_channel, bandwidth);
}
}
if (iso_rx_channel < 0) {
debugFatal("Could not allocate/determine iso rx channel\n");
err = 1;
}
}
if (err) {
if (iso_tx_channel >= 0)
get1394Service().freeIsoChannel(iso_tx_channel);
if (iso_rx_channel >= 0)
get1394Service().freeIsoChannel(iso_rx_channel);
return false;
}
if ((stat[1] & SR1_CLOCK_MODE_MASTER) ||
(stat[0] & SR0_AUTOSYNC_FREQ_MASK)==0 ||
(stat[0] & SR0_AUTOSYNC_SRC_MASK)==SR0_AUTOSYNC_SRC_NONE) {
init_samplerate = dev_config->hardware_freq;
} else {
init_samplerate = (stat[0] & SR0_STREAMING_FREQ_MASK) * 250;
}
debugOutput(DEBUG_LEVEL_VERBOSE, "sample rate on start: %d\n",
init_samplerate);
// get the device specific and/or global SP configuration
Util::Configuration &config = getDeviceManager().getConfiguration();
// base value is the config.h value
float recv_sp_dll_bw = STREAMPROCESSOR_DLL_BW_HZ;
float xmit_sp_dll_bw = STREAMPROCESSOR_DLL_BW_HZ;
// we can override that globally
config.getValueForSetting("streaming.spm.recv_sp_dll_bw", recv_sp_dll_bw);
config.getValueForSetting("streaming.spm.xmit_sp_dll_bw", xmit_sp_dll_bw);
// or override in the device section
config.getValueForDeviceSetting(getConfigRom().getNodeVendorId(), getConfigRom().getModelId(), "recv_sp_dll_bw", recv_sp_dll_bw);
config.getValueForDeviceSetting(getConfigRom().getNodeVendorId(), getConfigRom().getModelId(), "xmit_sp_dll_bw", xmit_sp_dll_bw);
// Calculate the event size. Each audio channel is allocated 4 bytes in
// the data stream.
/* FIXME: this will still require fine-tuning, but it's a start */
signed int event_size = num_channels * 4;
// Set up receive stream processor, initialise it and set DLL bw
m_receiveProcessor = new Streaming::RmeReceiveStreamProcessor(*this,
m_rme_model, event_size);
m_receiveProcessor->setVerboseLevel(getDebugLevel());
if (!m_receiveProcessor->init()) {
debugFatal("Could not initialize receive processor!\n");
return false;
}
if (!m_receiveProcessor->setDllBandwidth(recv_sp_dll_bw)) {
debugFatal("Could not set DLL bandwidth\n");
delete m_receiveProcessor;
m_receiveProcessor = NULL;
return false;
}
// Add ports to the processor - TODO
std::string id=std::string("dev?");
if (!getOption("id", id)) {
debugWarning("Could not retrieve id parameter, defaulting to 'dev?'\n");
}
addDirPorts(Streaming::Port::E_Capture);
/* Now set up the transmit stream processor */
m_transmitProcessor = new Streaming::RmeTransmitStreamProcessor(*this,
m_rme_model, event_size);
m_transmitProcessor->setVerboseLevel(getDebugLevel());
if (!m_transmitProcessor->init()) {
debugFatal("Could not initialise receive processor!\n");
return false;
}
if (!m_transmitProcessor->setDllBandwidth(xmit_sp_dll_bw)) {
debugFatal("Could not set DLL bandwidth\n");
delete m_transmitProcessor;
m_transmitProcessor = NULL;
return false;
}
// Other things to be done:
// * add ports to transmit stream processor
addDirPorts(Streaming::Port::E_Playback);
return true;
}
int
Device::getStreamCount() {
return 2; // one receive, one transmit
}
Streaming::StreamProcessor *
Device::getStreamProcessorByIndex(int i) {
switch (i) {
case 0:
return m_receiveProcessor;
case 1:
return m_transmitProcessor;
default:
debugWarning("Invalid stream index %d\n", i);
}
return NULL;
}
bool
Device::startStreamByIndex(int i) {
// The RME does not allow separate enabling of the transmit and receive
// streams. Therefore we start all streaming when index 0 is referenced
// and silently ignore the start requests for other streams
// (unconditionally flagging them as being successful).
if (i == 0) {
m_receiveProcessor->setChannel(iso_rx_channel);
m_transmitProcessor->setChannel(iso_tx_channel);
if (hardware_start_streaming(iso_rx_channel) != 0)
return false;
}
return true;
}
bool
Device::stopStreamByIndex(int i) {
// See comments in startStreamByIndex() as to why we act only when stream
// 0 is requested.
if (i == 0) {
if (hardware_stop_streaming() != 0)
return false;
}
return true;
}
signed int
Device::getFramesPerPacket(void) {
// The number of frames transmitted in a single packet is solely
// determined by the sample rate.
signed int freq = getSamplingFrequency();
signed int mult = multiplier_of_freq(freq);
switch (mult) {
case 2: return 15;
case 4: return 25;
default:
return 7;
}
return 7;
}
bool
Device::addPort(Streaming::StreamProcessor *s_processor,
char *name, enum Streaming::Port::E_Direction direction,
int position, int size) {
Streaming::Port *p;
p = new Streaming::RmeAudioPort(*s_processor, name, direction, position, size);
if (p == NULL) {
debugOutput(DEBUG_LEVEL_VERBOSE, "Skipped port %s\n",name);
}
return true;
}
bool
Device::addDirPorts(enum Streaming::Port::E_Direction direction) {
const char *mode_str = direction==Streaming::Port::E_Capture?"cap":"pbk";
Streaming::StreamProcessor *s_processor;
std::string id;
char name[128];
signed int i;
signed int n_analog, n_phones, n_adat, n_spdif;
signed int sample_rate = getSamplingFrequency();
/* Apply bandwidth limit if selected. This effectively sets up the
* number of adat and spdif channels assuming single-rate speed.
*/
n_spdif = 2;
switch (dev_config->settings.limit_bandwidth) {
case FF_SWPARAM_BWLIMIT_ANALOG_ONLY:
n_adat = n_spdif = 0;
break;
case FF_SWPARAM_BWLIMIT_ANALOG_SPDIF_ONLY:
n_adat = 0;
break;
case FF_SWPARAM_BWLIMIT_NO_ADAT2:
/* FF800 only */
n_adat = 8;
break;
default:
/* Send all channels */
n_adat = (m_rme_model==RME_MODEL_FIREFACE800)?16:8;
}
/* Work out the number of analog channels based on the device model and
* adjust the spdif and ADAT channels according to the current sample
* rate.
*/
n_analog = (m_rme_model==RME_MODEL_FIREFACE800)?10:8;
n_phones = 0;
if (sample_rate>=MIN_DOUBLE_SPEED && sample_rate= MIN_QUAD_SPEED) {
n_adat = 0;
n_spdif = 0;
}
if (direction == Streaming::Port::E_Capture) {
s_processor = m_receiveProcessor;
} else {
s_processor = m_transmitProcessor;
/* Phones count as two of the analog outputs */
n_analog -= 2;
n_phones = 2;
}
id = std::string("dev?");
if (!getOption("id", id)) {
debugWarning("Could not retrieve id parameter, defaulting to 'dev?'\n");
}
for (i=0; i