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/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "SolarisOutputPlugin.hxx"
#include "../OutputAPI.hxx"
#include "system/fd_util.h"
#include "util/Error.hxx"
#include <sys/stropts.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#ifdef __sun
#include <sys/audio.h>
#else
/* some fake declarations that allow build this plugin on systems
other than Solaris, just to see if it compiles */
#define AUDIO_GETINFO 0
#define AUDIO_SETINFO 0
#define AUDIO_ENCODING_LINEAR 0
struct audio_info {
struct {
unsigned sample_rate, channels, precision, encoding;
} play;
};
#endif
struct SolarisOutput {
AudioOutput base;
/* configuration */
const char *device;
int fd;
bool Initialize(const config_param ¶m, Error &error_r) {
return ao_base_init(&base, &solaris_output_plugin, param,
error_r);
}
};
static bool
solaris_output_test_default_device(void)
{
struct stat st;
return stat("/dev/audio", &st) == 0 && S_ISCHR(st.st_mode) &&
access("/dev/audio", W_OK) == 0;
}
static AudioOutput *
solaris_output_init(const config_param ¶m, Error &error_r)
{
SolarisOutput *so = new SolarisOutput();
if (!so->Initialize(param, error_r)) {
delete so;
return nullptr;
}
so->device = param.GetBlockValue("device", "/dev/audio");
return &so->base;
}
static void
solaris_output_finish(AudioOutput *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
delete so;
}
static bool
solaris_output_open(AudioOutput *ao, AudioFormat &audio_format,
Error &error)
{
SolarisOutput *so = (SolarisOutput *)ao;
struct audio_info info;
int ret, flags;
/* support only 16 bit mono/stereo for now; nothing else has
been tested */
audio_format.format = SampleFormat::S16;
/* open the device in non-blocking mode */
so->fd = open_cloexec(so->device, O_WRONLY|O_NONBLOCK, 0);
if (so->fd < 0) {
error.FormatErrno("Failed to open %s",
so->device);
return false;
}
/* restore blocking mode */
flags = fcntl(so->fd, F_GETFL);
if (flags > 0 && (flags & O_NONBLOCK) != 0)
fcntl(so->fd, F_SETFL, flags & ~O_NONBLOCK);
/* configure the audio device */
ret = ioctl(so->fd, AUDIO_GETINFO, &info);
if (ret < 0) {
error.SetErrno("AUDIO_GETINFO failed");
close(so->fd);
return false;
}
info.play.sample_rate = audio_format.sample_rate;
info.play.channels = audio_format.channels;
info.play.precision = 16;
info.play.encoding = AUDIO_ENCODING_LINEAR;
ret = ioctl(so->fd, AUDIO_SETINFO, &info);
if (ret < 0) {
error.SetErrno("AUDIO_SETINFO failed");
close(so->fd);
return false;
}
return true;
}
static void
solaris_output_close(AudioOutput *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
close(so->fd);
}
static size_t
solaris_output_play(AudioOutput *ao, const void *chunk, size_t size,
Error &error)
{
SolarisOutput *so = (SolarisOutput *)ao;
ssize_t nbytes;
nbytes = write(so->fd, chunk, size);
if (nbytes <= 0) {
error.SetErrno("Write failed");
return 0;
}
return nbytes;
}
static void
solaris_output_cancel(AudioOutput *ao)
{
SolarisOutput *so = (SolarisOutput *)ao;
ioctl(so->fd, I_FLUSH);
}
const struct AudioOutputPlugin solaris_output_plugin = {
"solaris",
solaris_output_test_default_device,
solaris_output_init,
solaris_output_finish,
nullptr,
nullptr,
solaris_output_open,
solaris_output_close,
nullptr,
nullptr,
solaris_output_play,
nullptr,
solaris_output_cancel,
nullptr,
nullptr,
};
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