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/* $Id: hw_irman.c,v 5.6 2001/12/08 15:07:03 lirc Exp $ */
/****************************************************************************
** hw_irman.c **********************************************************
****************************************************************************
*
* routines for Irman
*
* Copyright (C) 1999 Christoph Bartelmus <lirc@bartelmus.de>
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <errno.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 <irman.h>
#include "hardware.h"
#include "serial.h"
#include "ir_remote.h"
#include "lircd.h"
#include "hw_irman.h"
extern struct ir_remote *repeat_remote,*last_remote;
unsigned char *codestring;
struct timeval start,end,last;
lirc_t gap;
ir_code code;
#define CODE_LENGTH 64
struct hardware hw_irman=
{
LIRC_DRIVER_DEVICE, /* default device */
-1, /* fd */
LIRC_CAN_REC_LIRCCODE, /* features */
0, /* send_mode */
LIRC_MODE_LIRCCODE, /* rec_mode */
CODE_LENGTH, /* code_length */
irman_init, /* init_func */
NULL, /* config_func */
irman_deinit, /* deinit_func */
NULL, /* send_func */
irman_rec, /* rec_func */
irman_decode, /* decode_func */
NULL, /* readdata */
"irman"
};
int irman_decode(struct ir_remote *remote,
ir_code *prep,ir_code *codep,ir_code *postp,
int *repeat_flagp,lirc_t *remaining_gapp)
{
ir_code help,mask;
int i;
if(remote->pre_data_bits+
remote->bits+
remote->post_data_bits!=CODE_LENGTH ||
remote->flags&CONST_LENGTH) return(0);
help=code;
if(remote->post_data_bits>0)
{
mask=0;
for(i=0;i<remote->post_data_bits;i++)
{
mask=mask<<1;
mask=mask|1;
}
*postp=help&mask;
help=help>>remote->post_data_bits;
}
if(remote->bits>0)
{
mask=0;
for(i=0;i<remote->bits;i++)
{
mask=mask<<1;
mask=mask|1;
}
*codep=help&mask;
help=help>>remote->bits;
}
if(remote->pre_data_bits>0)
{
mask=0;
for(i=0;i<remote->pre_data_bits;i++)
{
mask=mask<<1;
mask=mask|1;
}
*prep=help&mask;
help=help>>remote->pre_data_bits;
}
if(start.tv_sec-last.tv_sec>=2) /* >1 sec */
{
*repeat_flagp=0;
}
else
{
gap=time_elapsed(&last,&start);
if(gap<=remote->remaining_gap*(100+remote->eps)/100
|| gap<=remote->remaining_gap+remote->aeps)
*repeat_flagp=1;
else
*repeat_flagp=0;
}
*remaining_gapp=remote->gap;
LOGPRINTF(1,"pre: %llx",(unsigned long long) *prep);
LOGPRINTF(1,"code: %llx",(unsigned long long) *codep);
LOGPRINTF(1,"post: %llx",(unsigned long long) *postp);
LOGPRINTF(1,"repeat_flag: %d",*repeat_flagp);
LOGPRINTF(1,"gap: %lu",(unsigned long) gap);
LOGPRINTF(1,"rem: %lu",(unsigned long) remote->remaining_gap);
return(1);
}
int irman_init(void)
{
if(!tty_create_lock(hw.device))
{
logprintf(LOG_ERR,"could not create lock files");
return(0);
}
if((hw.fd=ir_init(hw.device))<0)
{
logprintf(LOG_ERR,"could not open %s",hw.device);
logperror(LOG_ERR,"irman_init()");
tty_delete_lock();
return(0);
}
return(1);
}
int irman_deinit(void)
{
ir_finish();
sleep(1); /* give hardware enough time to reset */
close(hw.fd);
tty_delete_lock();
return(1);
}
char *irman_rec(struct ir_remote *remotes)
{
static char *text=NULL;
char *m;
int i;
last=end;
gettimeofday(&start,NULL);
codestring=ir_get_code();
gettimeofday(&end,NULL);
if(codestring==NULL)
{
# ifdef DEBUG
if(errno==IR_EDUPCODE)
{
LOGPRINTF(1,"received \"%s\" (dup - ignored)",
text ? text:"(null - bug)");
}
else if(errno==IR_EDISABLED)
{
LOGPRINTF(1,"irman not initialised (this is a bug)");
}
else
{
LOGPRINTF(1,"error reading code: \"%s\"",
ir_strerror(errno));
}
# endif
return(NULL);
}
text=ir_code_to_text(codestring);
LOGPRINTF(1,"received \"%s\"",text);
/* this is only historical but it's necessary for
compatibility to older versionns and it's handy to
recognize Irman config files */
code=0xffff;
for(i=0;i<IR_CODE_LEN;i++)
{
code=code<<8;
code=code|(ir_code) (unsigned char) codestring[i];
}
m=decode_all(remotes);
return(m);
}
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