mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-03-22 12:08:43 -04:00
- Initial cut at OSS support
transmit not tested, I don't even know how to get the portaudio version to transmit. ;-) Works on receive just fine though. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@107 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Diane Bruce
parent
d3b6083b50
commit
17c69c2bd8
283
start_oss.c
Normal file
283
start_oss.c
Normal file
@ -0,0 +1,283 @@
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <pthread.h>
|
||||
#include <inttypes.h>
|
||||
#include <time.h>
|
||||
#include <sys/time.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/soundcard.h>
|
||||
#include "conf.h"
|
||||
|
||||
#define AUDIOBUFSIZE 4096
|
||||
#define FRAMESPERBUFFER 1024
|
||||
#define TIMEOUT 1000L /* select time out for audio device */
|
||||
|
||||
char rcv_buf[AUDIOBUFSIZE]; /* XXX grab one from upper app later --db */
|
||||
char tx_buf[AUDIOBUFSIZE]; /* XXX grab one from upper app later --db */
|
||||
|
||||
#define DSP "/dev/dsp0.0"
|
||||
#define MAXDSPNAME sizeof(DSP)+1 /* quick hack --db */
|
||||
char dsp_in[MAXDSPNAME]; /* Both of these must be same length */
|
||||
char dsp_out[MAXDSPNAME];
|
||||
|
||||
extern void decode1_(int *iarg);
|
||||
void oss_loop(int *iarg);
|
||||
|
||||
/*
|
||||
* local state data referencing some gcom common fortran variables as well
|
||||
*/
|
||||
struct audio_data {
|
||||
int fd_in; /* Audio fd in; used only locally in this function */
|
||||
int fd_out; /* Audio fd out; used only locally in this function */
|
||||
double *Tsec; /* Present time SoundIn,SoundOut */
|
||||
double *tbuf; /* Tsec at time of input callback SoundIn */
|
||||
int *iwrite; /* Write pointer to Rx ring buffer SoundIn */
|
||||
int *ibuf; /* Most recent input buffer# SoundIn */
|
||||
int *TxOK; /* OK to transmit? SoundIn */
|
||||
int *ndebug; /* Write debugging info? GUI */
|
||||
int *ndsec; /* Dsec in units of 0.1 s GUI */
|
||||
int *Transmitting; /* Actually transmitting? SoundOut */
|
||||
int *nwave; /* Number of samples in iwave SoundIn */
|
||||
int *nmode; /* Which WSJT mode? GUI */
|
||||
int *trperiod; /* Tx or Rx period in seconds GUI */
|
||||
int nbuflen;
|
||||
int nfs;
|
||||
int16_t *y1; /* Ring buffer for audio channel 0 SoundIn */
|
||||
int16_t *y2; /* Ring buffer for audio channel 1 SoundIn */
|
||||
short *iwave;
|
||||
}data;
|
||||
|
||||
/*
|
||||
* start_threads()
|
||||
* inputs - ndevin device number for input
|
||||
* - ndevout device number for output
|
||||
* - y1 short int array for channel 0
|
||||
* - y2 short int array for channel 1
|
||||
* - nmax
|
||||
* - iwrite
|
||||
* - iwave
|
||||
* - nwave
|
||||
* - rate
|
||||
* - NSPB
|
||||
* - TRPeriod
|
||||
* - TxOK
|
||||
* - ndebug debug output or not?
|
||||
* - Transmitting
|
||||
* - Tsec
|
||||
* - ngo
|
||||
* - nmode
|
||||
* - tbuf
|
||||
* - ibuf
|
||||
* - ndsec
|
||||
* output - ?
|
||||
* side effects - Called from audio_init.f90 to start audio decode and
|
||||
* OSS thread.
|
||||
*/
|
||||
|
||||
int
|
||||
start_threads_(int *ndevin, int *ndevout, short y1[], short y2[],
|
||||
int *nbuflen, int *iwrite, short iwave[],
|
||||
int *nwave, int *nfsample, int *nsamperbuf,
|
||||
int *TRPeriod, int *TxOK, int *ndebug,
|
||||
int *Transmitting, double *Tsec, int *ngo, int *nmode,
|
||||
double tbuf[], int *ibuf, int *ndsec)
|
||||
{
|
||||
pthread_t thread1,thread2;
|
||||
int iret1,iret2;
|
||||
int iarg1 = 1,iarg2 = 2;
|
||||
int32_t rate=*nfsample;
|
||||
int samplesize;
|
||||
int format;
|
||||
int channels;
|
||||
double dnfs;
|
||||
|
||||
/* XXX OSS device is decoded from ndevin and ndevout
|
||||
* This is not strictly speaking the way to do it and is
|
||||
* probably specific to FreeBSD for now.
|
||||
* i.e. the .0 addition is a vchan; I'll add configure magic later. --db
|
||||
*/
|
||||
snprintf(dsp_in, MAXDSPNAME,
|
||||
"/dev/dsp%d.0", *ndevin);
|
||||
dsp_in[MAXDSPNAME] = '\0';
|
||||
|
||||
data.fd_in = open (dsp_in, O_RDWR, 0);
|
||||
|
||||
if (data.fd_in < 0) {
|
||||
fprintf(stderr, "Cannot open %s for input.\n", dsp_in);
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
if (*ndevin == *ndevout) {
|
||||
data.fd_out = data.fd_in;
|
||||
strncpy(dsp_out, dsp_in, sizeof(dsp_out));
|
||||
dsp_out[sizeof(dsp_out)] = '\0';
|
||||
|
||||
if (ioctl(data.fd_in, SNDCTL_DSP_SETDUPLEX, 0) < 0) {
|
||||
fprintf(stderr, "Cannot use %s for full duplex.\n", dsp_in);
|
||||
exit(-1);
|
||||
}
|
||||
}
|
||||
|
||||
data.Tsec = Tsec;
|
||||
data.tbuf = tbuf;
|
||||
data.iwrite = iwrite;
|
||||
data.ibuf = ibuf;
|
||||
data.TxOK = TxOK;
|
||||
data.ndebug = ndebug;
|
||||
data.ndsec = ndsec;
|
||||
data.Transmitting = Transmitting;
|
||||
data.y1 = y1;
|
||||
data.y2 = y2;
|
||||
data.nbuflen = *nbuflen;
|
||||
data.nmode = nmode;
|
||||
data.nwave = nwave;
|
||||
data.iwave = iwave;
|
||||
data.nfs = *nfsample;
|
||||
data.trperiod = TRPeriod;
|
||||
|
||||
dnfs=(double)*nfsample;
|
||||
|
||||
channels = 2;
|
||||
if (ioctl (data.fd_in, SNDCTL_DSP_CHANNELS, &channels) == -1) {
|
||||
fprintf (stderr, "Unable to set 2 channels for input.\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
if (channels != 2) {
|
||||
fprintf (stderr, "Unable to set 2 channels.\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
format = AFMT_S16_NE;
|
||||
if (ioctl (data.fd_in, SNDCTL_DSP_SETFMT, &format) == -1) {
|
||||
fprintf (stderr, "Unable to set format for input.\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
if (ioctl (data.fd_in, SNDCTL_DSP_SPEED, &rate) == -1) {
|
||||
fprintf (stderr, "Unable to set rate for input\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
printf("Audio OSS streams running normally.\n");
|
||||
printf("******************************************************************\n");
|
||||
printf("Opened %s for input.\n", dsp_in);
|
||||
printf("Opened %s for output.\n", dsp_out);
|
||||
printf("Rate set = %d\n", rate);
|
||||
|
||||
// printf("start_threads: creating thread for oss_loop\n");
|
||||
iret1 = pthread_create(&thread1,NULL,oss_loop,&iarg1);
|
||||
printf("start_threads: creating thread for decode1_\n");
|
||||
// iret2 = pthread_create(&thread2,NULL,decode1_,&iarg2);
|
||||
}
|
||||
|
||||
/*
|
||||
* oss_loop
|
||||
*
|
||||
* inputs - int pointer NOT USED
|
||||
* output - none
|
||||
* side effects -
|
||||
*/
|
||||
|
||||
void
|
||||
oss_loop(int *iarg)
|
||||
{
|
||||
fd_set readfds, writefds;
|
||||
int nfds = 0;
|
||||
struct timeval timeout = {0, 0};
|
||||
struct timeval tv;
|
||||
int nread;
|
||||
unsigned int i;
|
||||
static int n=0;
|
||||
static int n2=0;
|
||||
static int ia=0;
|
||||
static int ib=0;
|
||||
static int ic=0;
|
||||
static int16_t *in;
|
||||
static int16_t *wptr;
|
||||
static int TxOKz=0;
|
||||
static int ncall=0;
|
||||
static int nsec=0;
|
||||
static double stime;
|
||||
|
||||
for (;;) {
|
||||
FD_ZERO(&readfds );
|
||||
FD_ZERO(&writefds );
|
||||
FD_SET(data.fd_in, &readfds);
|
||||
FD_SET(data.fd_out, &writefds);
|
||||
|
||||
timeout.tv_usec = TIMEOUT;
|
||||
if (select(FD_SETSIZE, &readfds, &writefds, NULL, &timeout) > 0) {
|
||||
if (FD_ISSET(data.fd_in, &readfds)) {
|
||||
nread = read (data.fd_in, rcv_buf, AUDIOBUFSIZE);
|
||||
if (nread <= 0) {
|
||||
fprintf(stderr, "Read error %d\n", nread);
|
||||
exit(-1);
|
||||
}
|
||||
if (nread == AUDIOBUFSIZE) {
|
||||
/* Get System time */
|
||||
gettimeofday(&tv, NULL);
|
||||
stime = (double) tv.tv_sec + ((double)tv.tv_usec / 1000000.0) +
|
||||
*(data.ndsec) * 0.1;
|
||||
*(data.Tsec) = stime;
|
||||
|
||||
ncall++;
|
||||
|
||||
/* increment buffer pointers only if data available */
|
||||
ia=*(data.iwrite);
|
||||
ib=*(data.ibuf);
|
||||
data.tbuf[ib++] = stime;
|
||||
if(ib>=FRAMESPERBUFFER)
|
||||
ib=0;
|
||||
*(data.ibuf)=ib;
|
||||
in = rcv_buf; // XXX
|
||||
for(i=0; i<FRAMESPERBUFFER; i++) {
|
||||
data.y1[ia] = (*in++);
|
||||
data.y2[ia] = (*in++);
|
||||
ia++;
|
||||
}
|
||||
|
||||
if(ia >= data.nbuflen)
|
||||
ia=0; //Wrap buffer pointer if necessary
|
||||
*(data.iwrite) = ia; /* Save buffer pointer */
|
||||
fivehz_(); /* Call fortran routine */
|
||||
}
|
||||
}
|
||||
if (FD_ISSET(data.fd_in, &writefds)) {
|
||||
/* Get System time */
|
||||
gettimeofday(&tv, NULL);
|
||||
stime = (double) tv.tv_sec + ((double)tv.tv_usec / 1000000.0) +
|
||||
*(data.ndsec) * 0.1;
|
||||
*(data.Tsec) = stime;
|
||||
if(*(data.TxOK) && (!TxOKz)) {
|
||||
n=nsec/(*(data.trperiod));
|
||||
ic = (int)(stime - *(data.trperiod)*n) * data.nfs;
|
||||
ic = ic % *(data.nwave);
|
||||
}
|
||||
TxOKz = *(data.TxOK);
|
||||
*(data.Transmitting) = *(data.TxOK);
|
||||
wptr = tx_buf; /* XXX */
|
||||
for(i=0 ; i<FRAMESPERBUFFER; i++ ) {
|
||||
if(*(data.TxOK)) {
|
||||
n2 = data.iwave[ic];
|
||||
addnoise_(&n2);
|
||||
*wptr++ = n2; /* left */
|
||||
*wptr++ = n2; /* right */
|
||||
ic++;
|
||||
if(ic >= *(data.nwave)) {
|
||||
ic = ic % *(data.nwave); /* Wrap buffer pointer if necessary */
|
||||
if(*(data.nmode) == 2)
|
||||
*(data.TxOK) = 0;
|
||||
}
|
||||
}
|
||||
else {
|
||||
*wptr++ = 0; /* left */
|
||||
*wptr++ = 0; /* right */
|
||||
}
|
||||
}
|
||||
write(data.fd_out, tx_buf, AUDIOBUFSIZE);
|
||||
fivehztx_(); /* Call fortran routine */
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user