drivers/oss/oss_driver.h

   1 /*
   2
   3         OSS driver for Jack
   4         Copyright (C) 2003-2007 Jussi Laako <jussi@sonarnerd.net>
   5
   6         This program is free software; you can redistribute it and/or modify
   7         it under the terms of the GNU General Public License as published by
   8         the Free Software Foundation; either version 2 of the License, or
   9         (at your option) any later version.
  10
  11         This program is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14         GNU General Public License for more details.
  15
  16         You should have received a copy of the GNU General Public License
  17         along with this program; if not, write to the Free Software
  18         Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19         MA  02111-1307  USA
  20
  21 */
  22
  23
  24 #ifndef __JACK_OSS_DRIVER_H__
  25 #define __JACK_OSS_DRIVER_H__
  26
  27 #include <sys/types.h>
  28 #include <pthread.h>
  29 #include <semaphore.h>
  30
  31 #include <jack/types.h>
  32 #include <jack/jslist.h>
  33 #include <jack/driver.h>
  34 #include <jack/jack.h>
  35
  36
  37 #define OSS_DRIVER_DEF_DEV      "/dev/dsp"
  38 #define OSS_DRIVER_DEF_FS       48000
  39 #define OSS_DRIVER_DEF_BLKSIZE  1024
  40 #define OSS_DRIVER_DEF_NPERIODS 2
  41 #define OSS_DRIVER_DEF_BITS     16
  42 #define OSS_DRIVER_DEF_INS      2
  43 #define OSS_DRIVER_DEF_OUTS     2
  44
  45
  46 typedef jack_default_audio_sample_t jack_sample_t;
  47
  48 typedef struct _oss_driver
  49 {
  50         JACK_DRIVER_DECL
  51
  52         jack_nframes_t sample_rate;
  53         jack_nframes_t period_size;
  54         unsigned int nperiods;
  55         int bits;
  56         unsigned int capture_channels;
  57         unsigned int playback_channels;
  58
  59         char *indev;
  60         char *outdev;
  61         int infd;
  62         int outfd;
  63         int format;
  64         int ignorehwbuf;
  65         int trigger;
  66
  67         size_t indevbufsize;
  68         size_t outdevbufsize;
  69         size_t portbufsize;
  70         void *indevbuf;
  71         void *outdevbuf;
  72
  73         float iodelay;
  74         jack_time_t last_periodtime;
  75         jack_time_t next_periodtime;
  76         jack_nframes_t sys_in_latency;
  77         jack_nframes_t sys_out_latency;
  78
  79         JSList *capture_ports;
  80         JSList *playback_ports;
  81
  82         jack_engine_t *engine;
  83         jack_client_t *client;
  84
  85         volatile int run;
  86         volatile int threads;
  87         pthread_t thread_in;
  88         pthread_t thread_out;
  89         pthread_mutex_t mutex_in;
  90         pthread_mutex_t mutex_out;
  91 #       ifdef USE_BARRIER
  92         pthread_barrier_t barrier;
  93 #       endif
  94         sem_t sem_start;
  95 } oss_driver_t;
  96
  97
  98 #endif
  99