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/* $Id: hw_pixelview.c,v 5.14 2001/12/08 15:07:03 lirc Exp $ */
/****************************************************************************
** hw_pixelview.c **********************************************************
****************************************************************************
*
* routines for PixelView Play TV receiver
*
* Copyright (C) 1999 Christoph Bartelmus <lirc@bartelmus.de>
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include "hardware.h"
#include "serial.h"
#include "ir_remote.h"
#include "lircd.h"
#include "hw_pixelview.h"
extern struct ir_remote *repeat_remote,*last_remote;
unsigned char b[3];
struct timeval start,end,last;
lirc_t gap,signal_length;
ir_code pre,code;
struct hardware hw_pixelview=
{
LIRC_DRIVER_DEVICE, /* default device */
-1, /* fd */
LIRC_CAN_REC_LIRCCODE, /* features */
0, /* send_mode */
LIRC_MODE_LIRCCODE, /* rec_mode */
30, /* code_length */
pixelview_init, /* init_func */
NULL, /* config_func */
pixelview_deinit, /* deinit_func */
NULL, /* send_func */
pixelview_rec, /* rec_func */
pixelview_decode, /* decode_func */
NULL, /* readdata */
"pixelview"
};
int pixelview_decode(struct ir_remote *remote,
ir_code *prep,ir_code *codep,ir_code *postp,
int *repeat_flagp,lirc_t *remaining_gapp)
{
#if 0
if(remote->pone!=0 || remote->sone!=833) return(0);
if(remote->pzero!=833 || remote->szero!=0) return(0);
#endif
if(!map_code(remote,prep,codep,postp,
10,pre,20,code,0,0))
{
return(0);
}
gap=0;
if(start.tv_sec-last.tv_sec>=2) /* >1 sec */
{
*repeat_flagp=0;
}
else
{
gap=(start.tv_sec-last.tv_sec)*1000000+
start.tv_usec-last.tv_usec;
if(gap<remote->remaining_gap*(100+remote->eps)/100
|| gap<=remote->remaining_gap+remote->aeps)
*repeat_flagp=1;
else
*repeat_flagp=0;
}
*remaining_gapp=is_const(remote) ?
(remote->gap>signal_length ? remote->gap-signal_length:0):
remote->gap;
LOGPRINTF(1,"pre: %llx",(unsigned long long) *prep);
LOGPRINTF(1,"code: %llx",(unsigned long long) *codep);
LOGPRINTF(1,"repeat_flag: %d",*repeat_flagp);
LOGPRINTF(1,"gap: %lu",(unsigned long) gap);
LOGPRINTF(1,"rem: %lu",(unsigned long) remote->remaining_gap);
LOGPRINTF(1,"signal length: %lu",(unsigned long) signal_length);
return(1);
}
int pixelview_init(void)
{
signal_length=hw.code_length*1000000/1200;
if(!tty_create_lock(hw.device))
{
logprintf(LOG_ERR,"could not create lock files");
return(0);
}
if((hw.fd=open(hw.device,O_RDWR|O_NONBLOCK|O_NOCTTY))<0)
{
logprintf(LOG_ERR,"could not open %s",hw.device);
logperror(LOG_ERR,"pixelview_init()");
tty_delete_lock();
return(0);
}
if(!tty_reset(hw.fd))
{
logprintf(LOG_ERR,"could not reset tty");
pixelview_deinit();
return(0);
}
if(!tty_setbaud(hw.fd,1200))
{
logprintf(LOG_ERR,"could not set baud rate");
pixelview_deinit();
return(0);
}
return(1);
}
int pixelview_deinit(void)
{
close(hw.fd);
tty_delete_lock();
return(1);
}
char *pixelview_rec(struct ir_remote *remotes)
{
char *m;
int i;
last=end;
gettimeofday(&start,NULL);
for(i=0;i<3;i++)
{
if(i>0)
{
if(!waitfordata(50000))
{
logprintf(LOG_ERR,"timeout reading "
"byte %d",i);
return(NULL);
}
}
if(read(hw.fd,&b[i],1)!=1)
{
logprintf(LOG_ERR,"reading of byte %d failed",i);
logperror(LOG_ERR,NULL);
return(NULL);
}
LOGPRINTF(1,"byte %d: %02x",i,b[i]);
}
gettimeofday(&end,NULL);
pre=(reverse((ir_code) b[0],8)<<1)|1;
code=(reverse((ir_code) b[1],8)<<1)|1;
code=code<<10;
code|=(reverse((ir_code) b[2],8)<<1)|1;
m=decode_all(remotes);
return(m);
}
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