RTL8710_SDK_GCC_VERSION/component/os/os_dep/device_lock.c
RtlduinoMan 905d81784e GCC SDK RTL8710 basic version (including the window platform cygwin installation and Ubuntu platform Linux Installation routines),
including cross compilation of the installation, compile, link, run, debug, and so on.
SDK implementation of the function:
1, WiFi connection settings (including AP mode and STA mode).
2, peripheral resource control (including GPIO, SPI, UART, IIC, etc.).
3, the user uses the sample method.
2016-09-08 18:11:26 +08:00

64 lines
1.8 KiB
C

/*
* Routines to access hardware
*
* Copyright (c) 2013 Realtek Semiconductor Corp.
*
* This module is a confidential and proprietary property of RealTek and
* possession or use of this module requires written permission of RealTek.
*/
#include "osdep_service.h"
#include "device_lock.h"
//------------------------------------------------------
#define DEVICE_MUTEX_IS_INIT(device) (mutex_init & (1<<device))
#define DEVICE_MUTEX_SET_INIT(device) (mutex_init |= (1<<device))
#define DEVICE_MUTEX_CLR_INIT(device) (mutex_init &= (~(1<<device)))
static u32 mutex_init = 0;
static _mutex device_mutex[RT_DEV_LOCK_MAX];
//======================================================
static void device_mutex_init(RT_DEV_LOCK_E device)
{
if(!DEVICE_MUTEX_IS_INIT(device)){
_lock lock;
_irqL irqL;
rtw_enter_critical(&lock, &irqL);
if(!DEVICE_MUTEX_IS_INIT(device)){
rtw_mutex_init(&device_mutex[device]);
DEVICE_MUTEX_SET_INIT(device);
}
rtw_exit_critical(&lock, &irqL);
}
}
//======================================================
static void device_mutex_free(RT_DEV_LOCK_E device)
{
if(DEVICE_MUTEX_IS_INIT(device)){
_lock lock;
_irqL irqL;
rtw_enter_critical(&lock, &irqL);
if(!DEVICE_MUTEX_IS_INIT(device)){
rtw_mutex_free(&device_mutex[device]);
DEVICE_MUTEX_CLR_INIT(device);
}
rtw_exit_critical(&lock, &irqL);
}
}
//======================================================
void device_mutex_lock(RT_DEV_LOCK_E device)
{
device_mutex_init(device);
while(rtw_mutex_get_timeout(&device_mutex[device], 10000)<0)
printf("device lock timeout: %d\n", device);
}
//======================================================
void device_mutex_unlock(RT_DEV_LOCK_E device)
{
device_mutex_init(device);
rtw_mutex_put(&device_mutex[device]);
}