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/*
* tcpal_linux.c
*
* Author: <linux@telechips.com>
* Description: Telechips broadcast driver
*
* Copyright (c) Telechips, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tcpal_os.h"
#include "tcpal_debug.h"
#include <linux/module.h>
#include <linux/semaphore.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <asm/mach-types.h>
u64 tcpal_get_time(void)
{
u64 tick;
struct timeval tv;
do_gettimeofday(&tv);
tick = (u64)tv.tv_sec*1000 + tv.tv_usec/1000;
return tick;
}
u64 tcpal_diff_time(u64 _start_time)
{
u64 interval;
u64 curr_time = tcpal_get_time();
if (curr_time > _start_time)
interval = curr_time - _start_time;
else
interval = (TCPAL_MAX_TIMECNT - _start_time) + curr_time + 1;
return interval;
}
void tcpal_msleep(s32 _ms)
{
msleep(_ms);
}
void tcpal_usleep(s32 _us)
{
struct timeval pre_tv, tv;
s32 diff;
do_gettimeofday(&pre_tv);
do {
do_gettimeofday(&tv);
if (tv.tv_usec > pre_tv.tv_usec)
diff = tv.tv_usec - pre_tv.tv_usec;
else
diff = (LONG_MAX - pre_tv.tv_usec) + tv.tv_usec;
} while (diff < _us);
}
void *tcpal_malloc(u32 _size)
{
return kmalloc(_size, GFP_KERNEL);
}
void tcpal_free(void *_ptr)
{
kfree(_ptr);
}
s32 tcpal_create_lock(
u32 *_semaphore,
char *_name,
u32 _initialCount)
{
struct mutex *lock =
(struct mutex *)tcpal_malloc(sizeof(struct mutex));
tcbd_debug(DEBUG_TCPAL_OS, "\n");
mutex_init(lock);
*_semaphore = (u32)lock;
return 0;
}
s32 tcpal_destroy_lock(u32 *_semaphore)
{
struct mutex *lock = (struct mutex *)*_semaphore;
if (lock == NULL)
return -1;
tcpal_free(lock);
*_semaphore = 0;
tcbd_debug(DEBUG_TCPAL_OS, "\n");
return 0;
}
s32 tcpal_lock(u32 *_semaphore)
{
struct mutex *lock = (struct mutex *)*_semaphore;
if (lock == NULL) {
tcbd_debug(DEBUG_ERROR, "\n");
return -1;
}
mutex_lock(lock);
return 0;
}
s32 tcpal_unlock(u32 *_semaphore)
{
struct mutex *lock = (struct mutex *)*_semaphore;
if (lock == NULL) {
tcbd_debug(DEBUG_ERROR, "\n");
return -1;
}
mutex_unlock(lock);
return 0;
}
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