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/*
* Copyright (c) 2017-2019 TOYOTA MOTOR CORPORATION
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <net/if.h>
#include <string.h>
#include <sys/ioctl.h>
#include <alloca.h>
#include <linux/input.h>
#include <linux/joystick.h>
#include "wheel-service.h"
#include "js_raw.h"
#include "js_signal_event.h"
#define JSNAMELEN 128
static int *axis;
static char *button;
static timer_t tid;
static struct sigaction oldact;
int js_signal_read(int fd)
{
ssize_t size;
struct js_event jsEvent;
int rc = 0;
size = read(fd, &jsEvent, sizeof(struct js_event));
if(size != 0)
{
switch (jsEvent.type) //& ~JS_EVENT_INIT don't deal with init state.
{
case JS_EVENT_BUTTON | JS_EVENT_INIT:
DBG_NOTICE("This is JS_EVENT_BUTTON init state [%d] : %d.", jsEvent.number, button[jsEvent.number]);
break;
case JS_EVENT_AXIS | JS_EVENT_INIT:
DBG_NOTICE("This is JS_EVENT_AXIS init state [%d] : %d.", jsEvent.number, axis[jsEvent.number]);
break;
case JS_EVENT_BUTTON:
button[jsEvent.number] = (char)jsEvent.value;
DBG_NOTICE("JS_EVENT_BUTTON [%d] : %d.", jsEvent.number, button[jsEvent.number]);
newButtonValue(jsEvent.number, jsEvent.value);
break;
case JS_EVENT_AXIS:
axis[jsEvent.number] = jsEvent.value;
DBG_NOTICE("JS_EVENT_AXIS [%d] : %d.", jsEvent.number, axis[jsEvent.number]);
newAxisValue(jsEvent.number, jsEvent.value);
break;
default:
break;
}
rc = 0;
}
else
{
rc = -1;
}
return rc;
}
int on_event(sd_event_source *s, int fd, uint32_t revents, void *userdata)
{
if ((revents & EPOLLIN) != 0)
{
//NOTICEMSG("on_event!\n");
int rc = 0;
rc = js_signal_read(fd);
if(rc == -1)
{
DBG_ERROR("JS Frame Read failed");
return -1;
}
}
if ((revents & (EPOLLERR|EPOLLRDHUP|EPOLLHUP)) != 0)
{
/* T.B.D
* if error or hungup */
DBG_ERROR("Error or Hunup: rvent=%08x", revents);
}
return 0;
}
int js_open(const char *devname)
{
unsigned char numAxes = 0;
unsigned char numButtons = 0;
int version = 0;
int fd;
char name[JSNAMELEN] = "Unknown";
char steering_name[JSNAMELEN] = "Logitech G29 Driving Force Racing Wheel";
struct js_corr cal[6];
int i, j;
unsigned int calData[36] =
{
1, 0, 8191, 8192, 65542, 65534,
1, 0, 127, 128, 4227201, 4194176,
1, 0, 127, 128, 4227201, 4194176,
1, 0, 127, 128, 4227201, 4194176,
1, 0, 0, 0, 536854528, 536854528,
1, 0, 0, 0, 536854528, 536854528
};
if ((fd = open(devname, O_RDONLY)) < 0)
{
return -1;
}
ioctl(fd, JSIOCGVERSION, &version);
ioctl(fd, JSIOCGAXES, &numAxes);
ioctl(fd, JSIOCGBUTTONS, &numButtons);
ioctl(fd, JSIOCGNAME(JSNAMELEN), name);
if (strcmp(name, steering_name) == 0)
{
setJsType(JS_TYPE_STEERING);
DBG_NOTICE("JS_TYPE_STEERING type!");
}
else
{
setJsType(JS_TYPE_GAME_CTL);
DBG_NOTICE("JS_TYPE_GAME_CTL type!");
}
for (i = 0; i < 6; i++)
{
int k = 0;
cal[i].type = (__u16)calData[(i*6)+k];
k++;
cal[i].prec = (__s16)calData[(i*6)+k];
k++;
for(j = 0; j < 4; j++)
{
cal[i].coef[j] = (__s32)calData[(i*6)+k];
k++;
}
}
if (ioctl(fd, JSIOCSCORR, &cal) < 0)
{
return -1;
}
axis = (int *)calloc(numAxes, sizeof(int));
button = (char *)calloc(numButtons, sizeof(char));
#if 0
gis = g_unix_input_stream_new(fd, TRUE);
if(gis == NULL)
{
DBG_ERROR("g_unix_input_stream_new() failed!");
}
else
{
NOTICEMSG("g_unix_input_stream_new() succeed!");
}
g_input_stream_read_async(gis, &jsEvent, sizeof(struct js_event), G_PRIORITY_DEFAULT, NULL, &readCallback, NULL);
#endif
return fd;
}
void js_close(int js)
{
if (js < 0)
{
return;
}
close(js);
}
int init_timer()
{
struct sigaction act;
struct itimerspec itval;
memset(&act, 0, sizeof(struct sigaction));
memset(&oldact, 0, sizeof(struct sigaction));
act.sa_handler = updateTimerHandler;
act.sa_flags = SA_RESTART;
if(sigaction(SIGALRM, &act, &oldact) < 0) {
DBG_ERROR("sigaction failed.");
return -1;
}
itval.it_value.tv_sec = 0;
itval.it_value.tv_nsec = 200000000;
itval.it_interval.tv_sec = 0;
itval.it_interval.tv_nsec = 200000000;
if(timer_create(CLOCK_REALTIME, NULL, &tid) < 0) {
DBG_ERROR("timer_create failed.");
return -1;
}
if(timer_settime(tid, 0, &itval, NULL) < 0) {
DBG_ERROR("timer_settime failed.");
return -1;
}
return 0;
}
void deinit_timer()
{
timer_delete(tid);
sigaction(SIGALRM, &oldact, NULL);
}
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