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/* Copyright (C) 2007 L. Donnie Smith <cwiid@abstrakraft.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* ChangeLog:
* 2007-05-14 L. Donnie Smith <cwiid@abstrakraft.org>
* * added timestamp to cwiid_get_mesg
* * added cwiid_get_acc_cal
*
* 2007-04-24 L. Donnie Smith <cwiid@abstrakraft.org>
* * created for API overhaul
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include "cwiid_internal.h"
int cwiid_get_id(struct wiimote *wiimote)
{
return wiimote->id;
}
int cwiid_set_data(struct wiimote *wiimote, const void *data)
{
wiimote->data = data;
return 0;
}
const void *cwiid_get_data(struct wiimote *wiimote)
{
return wiimote->data;
}
int cwiid_enable(struct wiimote *wiimote, int flags)
{
if ((flags & CWIID_FLAG_NONBLOCK) &&
!(wiimote->flags & CWIID_FLAG_NONBLOCK)) {
if (fcntl(wiimote->mesg_pipe[0], F_SETFL, O_NONBLOCK)) {
cwiid_err(wiimote, "File control error (mesg pipe)");
return -1;
}
}
wiimote->flags |= flags;
return 0;
}
int cwiid_disable(struct wiimote *wiimote, int flags)
{
if ((flags & CWIID_FLAG_NONBLOCK) &&
(wiimote->flags & CWIID_FLAG_NONBLOCK)) {
if (fcntl(wiimote->mesg_pipe[0], F_SETFL, 0)) {
cwiid_err(wiimote, "File control error (mesg pipe)");
return -1;
}
}
wiimote->flags &= ~flags;
return 0;
}
int cwiid_set_mesg_callback(struct wiimote *wiimote,
cwiid_mesg_callback_t *callback)
{
if (wiimote->mesg_callback) {
if (cancel_mesg_callback(wiimote)) {
/* prints it's own errors */
return -1;
}
}
wiimote->mesg_callback = callback;
if (wiimote->mesg_callback) {
if (pthread_create(&wiimote->mesg_callback_thread, NULL,
(void *(*)(void *))&mesg_callback_thread, wiimote)) {
cwiid_err(wiimote, "Thread creation error (callback thread)");
return -1;
}
}
return 0;
}
int cwiid_get_mesg(struct wiimote *wiimote, int *mesg_count,
union cwiid_mesg *mesg[], struct timespec *timestamp)
{
struct mesg_array ma;
if (read_mesg_array(wiimote->mesg_pipe[0], &ma)) {
if (errno == EAGAIN) {
return -1;
}
else {
cwiid_err(wiimote, "Pipe read error (mesg_pipe)");
return -1;
}
}
*mesg_count = ma.count;
*timestamp = ma.timestamp;
if ((*mesg = malloc(ma.count * sizeof ma.array[0])) == NULL) {
cwiid_err(wiimote, "Memory allocation error (mesg array)");
return -1;
}
memcpy(*mesg, &ma.array, ma.count * sizeof (*mesg)[0]);
return 0;
}
int cwiid_get_state(struct wiimote *wiimote, struct cwiid_state *state)
{
if (pthread_mutex_lock(&wiimote->state_mutex)) {
cwiid_err(wiimote, "Mutex lock error (state mutex)");
return -1;
}
memcpy(state, &wiimote->state, sizeof *state);
if (pthread_mutex_unlock(&wiimote->state_mutex)) {
cwiid_err(wiimote, "Mutex unlock error (state mutex) - "
"deadlock warning");
return -1;
}
return 0;
}
int cwiid_get_acc_cal(struct wiimote *wiimote, enum cwiid_ext_type ext_type,
struct acc_cal *acc_cal)
{
uint8_t flags;
uint32_t offset;
unsigned char buf[7];
char *err_str;
switch (ext_type) {
case CWIID_EXT_NONE:
flags = CWIID_RW_EEPROM;
offset = 0x16;
err_str = "";
break;
case CWIID_EXT_NUNCHUK:
flags = CWIID_RW_REG | CWIID_RW_DECODE;
offset = 0xA40020;
err_str = "nunchuk ";
break;
default:
cwiid_err(wiimote, "Unsupported calibration request");
return -1;
}
if (cwiid_read(wiimote, flags, offset, 7, buf)) {
cwiid_err(wiimote, "Read error (%scal)", err_str);
return -1;
}
acc_cal->zero[CWIID_X] = buf[0];
acc_cal->zero[CWIID_Y] = buf[1];
acc_cal->zero[CWIID_Z] = buf[2];
acc_cal->one[CWIID_X] = buf[4];
acc_cal->one[CWIID_Y] = buf[5];
acc_cal->one[CWIID_Z] = buf[6];
return 0;
}
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