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/*
Copyright (C) 2013 Matt Flax <flatmax@>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "JackIIODriver.H"
#include "driver_interface.h"
#define IIO_DEFAULT_SAMPLERATE 1e6; ///< The default sample rate for the default chip
#define IIO_DEFAULT_PERIODSIZE 1024; ///< The defaul period size
namespace Jack {
int JackIIODriver::Open(jack_nframes_t buffer_size,
jack_nframes_t samplerate,
bool capturing,
bool playing,
int inchannels,
int outchannels,
bool monitor,
const char* capture_driver_name,
const char* playback_driver_name,
jack_nframes_t capture_latency,
jack_nframes_t playback_latency)
{
return JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels,
monitor, capture_driver_name, playback_driver_name, capture_latency, playback_latency);
}
} // end namespace Jack
#ifdef __cplusplus
extern "C"
{
#endif
SERVER_EXPORT const jack_driver_desc_t *
driver_get_descriptor () {
jack_driver_desc_t * desc;
jack_driver_desc_filler_t filler;
jack_driver_param_value_t value;
desc = jack_driver_descriptor_construct("iio", JackDriverMaster, "Linux Industrial IO backend", &filler);
strcpy(value.str, "AD7476");
jack_driver_descriptor_add_parameter(
desc,
&filler,
"device",
'd',
JackDriverParamString,
&value,
NULL,
"The IIO chip to use.",
"The IIO chip to use. Specifies which chip name to scan for on all devices present in /sys/bus/iio.");
value.ui = IIO_DEFAULT_PERIODSIZE;
jack_driver_descriptor_add_parameter(desc, &filler, "period", 'p', JackDriverParamUInt, &value, NULL, "Frames per period", NULL);
value.ui = 2;
jack_driver_descriptor_add_parameter(desc, &filler, "nperiods", 'n', JackDriverParamUInt, &value, NULL, "Number of periods of playback latency", NULL);
value.ui = (IIO_DEFAULT_SAMPLERATE)U;
jack_driver_descriptor_add_parameter(desc, &filler, "rate", 'r', JackDriverParamUInt, &value, NULL, "Sample rate", NULL);
value.i = 0;
jack_driver_descriptor_add_parameter(desc, &filler, "capture", 'C', JackDriverParamBool, &value, NULL, "Provide capture ports.", NULL);
jack_driver_descriptor_add_parameter(desc, &filler, "playback", 'P', JackDriverParamBool, &value, NULL, "Provide playback ports.", NULL);
value.i = 0;
jack_driver_descriptor_add_parameter(desc, &filler, "duplex", 'D', JackDriverParamBool, &value, NULL, "Provide both capture and playback ports.", NULL);
value.ui = 0;
jack_driver_descriptor_add_parameter(desc, &filler, "input-latency", 'I', JackDriverParamUInt, &value, NULL, "Extra input latency (frames)", NULL);
jack_driver_descriptor_add_parameter(desc, &filler, "output-latency", 'O', JackDriverParamUInt, &value, NULL, "Extra output latency (frames)", NULL);
value.ui = 0;
jack_driver_descriptor_add_parameter(desc, &filler, "inchannels", 'i', JackDriverParamUInt, &value, NULL, "Number of input channels to provide (note: currently ignored)", NULL);
jack_driver_descriptor_add_parameter(desc, &filler, "outchannels", 'o', JackDriverParamUInt, &value, NULL, "Number of output channels to provide (note: currently ignored)", NULL);
value.ui = 3;
jack_driver_descriptor_add_parameter(desc, &filler, "verbose", 'v', JackDriverParamUInt, &value, NULL, "gtkIOStream verbose level", NULL);
// value.i = 0;
// jack_driver_descriptor_add_parameter(desc, &filler, "snoop", 'X', JackDriverParamBool, &value, NULL, "Snoop firewire traffic", NULL);
return desc;
}
SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params) {
const JSList * node;
const jack_driver_param_t * param;
char *device_name=(char*)"AD7476";
for (node = params; node; node = jack_slist_next (node)) {
param = (jack_driver_param_t *) node->data;
switch (param->character) {
case 'd':
device_name = const_cast<char*>(param->value.str);
break;
case 'p':
cmlparams.period_size = param->value.ui;
cmlparams.period_size_set = 1;
break;
case 'n':
cmlparams.buffer_size = param->value.ui;
cmlparams.buffer_size_set = 1;
break;
case 'r':
cmlparams.sample_rate = param->value.ui;
cmlparams.sample_rate_set = 1;
break;
case 'i':
cmlparams.capture_ports = param->value.ui;
break;
case 'o':
cmlparams.playback_ports = param->value.ui;
break;
case 'I':
cmlparams.capture_frame_latency = param->value.ui;
break;
case 'O':
cmlparams.playback_frame_latency = param->value.ui;
break;
case 'x':
cmlparams.slave_mode = param->value.ui;
break;
// case 'X':
// cmlparams.snoop_mode = param->value.i;
// break;
case 'v':
cmlparams.verbose_level = param->value.ui;
}
}
/* duplex is the default */
if (!cmlparams.playback_ports && !cmlparams.capture_ports) {
cmlparams.playback_ports = 1;
cmlparams.capture_ports = 1;
}
iio.findDevicesByChipName(chipName);
// Special open for FFADO driver...
if (ffado_driver->Open(&cmlparams) == 0) {
return threaded_driver;
} else {
delete threaded_driver; // Delete the decorated driver
return NULL;
}
}
#ifdef __cplusplus
}
#endif
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