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|
/****************************************************************************
** hw_pcmak.c ***********************************************************
****************************************************************************
*
* routines for Logitech receiver
*
* Copyright (C) 1999 Christoph Bartelmus <lirc@bartelmus.de>
* modified for pcmak serial/USB-ftdi receiver P_awe_L <pablozrudnika@wp.pl>
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifndef LIRC_IRTTY
/* could also be /dev/ttyS0 if it's a serial receiver */
#define LIRC_IRTTY "/dev/ttyUSB0"
#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 "lirc_driver.h"
#include "lirc/serial.h"
#define TIMEOUT 50000
static const logchannel_t logchannel = LOG_DRIVER;
static unsigned char b;
static struct timeval start, end, last;
static lirc_t signal_length;
static ir_code pre, code;
static int repeat_counter, pressed_key;
//Forwards:
static int pcmak_decode(struct ir_remote* remote, struct decode_ctx_t* ctx);
static int pcmak_init(void);
static int pcmak_deinit(void);
static char* pcmak_rec(struct ir_remote* remotes);
const struct driver hw_pcmak = {
.name = "pcmak",
.device = LIRC_IRTTY,
.features = LIRC_CAN_REC_LIRCCODE,
.send_mode = 0,
.rec_mode = LIRC_MODE_LIRCCODE,
.code_length = 16,
.init_func = pcmak_init,
.deinit_func = pcmak_deinit,
.open_func = default_open,
.close_func = default_close,
.send_func = NULL,
.rec_func = pcmak_rec,
.decode_func = pcmak_decode,
.drvctl_func = NULL,
.readdata = NULL,
.api_version = 3,
.driver_version = "0.10.2",
.info = "No info available",
.device_hint = "/dev/tty[0-9]*",
};
const struct driver* hardwares[] = { &hw_pcmak, (const struct driver*)NULL };
int pcmak_decode(struct ir_remote* remote, struct decode_ctx_t* ctx)
{
if (!map_code(remote, ctx, 8, pre, 8, code, 0, 0))
return 0;
map_gap(remote, ctx, &start, &last, signal_length);
return 1;
}
int pcmak_init(void)
{
signal_length = drv.code_length * 1000000 / 1200;
if (!tty_create_lock(drv.device)) {
log_error("could not create lock files");
return 0;
}
drv.fd = open(drv.device, O_RDWR | O_NONBLOCK | O_NOCTTY);
if (drv.fd < 0) {
log_error("could not open %s", drv.device);
log_perror_err("pcmak_init()");
tty_delete_lock();
return 0;
}
if (!tty_reset(drv.fd)) {
log_error("could not reset tty");
pcmak_deinit();
return 0;
}
if (!tty_setbaud(drv.fd, 1200)) {
log_error("could not set baud rate");
pcmak_deinit();
return 0;
}
return 1;
}
int pcmak_deinit(void)
{
close(drv.fd);
tty_delete_lock();
return 1;
}
char* pcmak_rec(struct ir_remote* remotes)
{
char* m;
int i = 0;
last = end;
gettimeofday(&start, NULL);
while (1) {
i++;
if (i > 0) {
if (!waitfordata(TIMEOUT)) {
log_trace("timeout reading byte %d", i);
return NULL;
}
}
if (read(drv.fd, &b, 1) != 1) {
log_error("reading of byte %d failed", i);
log_perror_err(NULL);
return NULL;
}
log_trace("byte %d: %02x", i, b);
if (b == 0xAA) {
repeat_counter = 0;
} else {
/* Range of allowed button codes */
if (/* PCMAK codes */
(b >= 0x01 && b <= 0x2B) ||
/* codes with shift button */
(b >= 0x41 && b <= 0x6B) ||
/* MINIMAK/MINIMAK LASER codes */
(b >= 0x2F && b <= 0x31) ||
/* MINIMAK codes with shift */
b == 0x5F || b == 0x79 || b == 0x75) {
if (repeat_counter < 1) {
repeat_counter++;
pressed_key = b;
} else {
if (pressed_key == b) {
gettimeofday(&end, NULL);
pre = 0xAA;
code = (ir_code)b;
m = decode_all(remotes);
return m;
}
}
}
}
}
return NULL;
}
|
