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Zhao_Jiasheng
2021-06-03 17:38:11 +08:00
parent 92301257f3
commit 89a2236b18
1993 changed files with 40 additions and 0 deletions
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Ubiquitous/XiUOS/board/aiit-arm32-board/third_party_driver/watchdog/Kconfig
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if BSP_USING_WDT
config WDT_BUS_NAME
string "watchdog bus name"
default "wdt"
config WDT_DRIVER_NAME
string "watchdog driver name"
default "wdt_drv"
config WDT_DEVICE_NAME
string "watchdog device name"
default "wdt_dev"
endif
Ubiquitous/XiUOS/board/aiit-arm32-board/third_party_driver/watchdog/Makefile
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SRC_FILES := hardware_wdg.c connect_wdg.c
include $(KERNEL_ROOT)/compiler.mk
Ubiquitous/XiUOS/board/aiit-arm32-board/third_party_driver/watchdog/connect_wdg.c
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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file connect_wdt.c
* @brief support aiit-arm32-board watchdog function and register to bus framework
* @version 1.0
* @author AIIT XUOS Lab
* @date 2021-04-25
*/
#include <connect_wdg.h>
#include <hardware_iwdg.h>
/**
* This function Watchdog configuration function
*
* @param arg Watchdog device Parameters
*
* @return EOK
*/
static int WdgSet(uint16_t arg)
{
IWDG_Enable();
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
IWDG_SetPrescaler(IWDG_Prescaler_16);
IWDG_SetReload(arg);
while(IWDG_GetFlagStatus(IWDG_FLAG_RVU) != RESET);
IWDG_ReloadCounter();
return 0;
}
/**
* This function Watchdog initialization
*
* @param dev Watchdog driver structure handle
*
* @return EOK
*/
static uint32 WdtOpen(void *dev)
{
WdgSet(4000);
return EOK;
}
/**
* This function Watchdog control function
*
* @param drv Watchdog driver structure handle
*
* @param args Watchdog driver Parameters
*
* @return EOK
*/
static uint32 WdtConfigure(void *drv, struct BusConfigureInfo *args)
{
switch (args->configure_cmd)
{
case OPER_WDT_SET_TIMEOUT:
if (WdgSet((uint16_t)*(int *)args->private_data) != 0) {
return ERROR;
}
break;
case OPER_WDT_KEEPALIVE:
IWDG_ReloadCounter();
break;
default:
return ERROR;
}
return EOK;
}
static const struct WdtDevDone dev_done =
{
WdtOpen,
NONE,
NONE,
NONE,
};
/**
* This function Watchdog initialization
*
* @return EOK
*/
int HwWdtInit(void)
{
x_err_t ret = EOK;
static struct WdtBus wdt;
static struct WdtDriver drv;
static struct WdtHardwareDevice dev;
ret = WdtBusInit(&wdt, WDT_BUS_NAME);
if (ret != EOK) {
KPrintf("Watchdog bus init error %d\n", ret);
return ERROR;
}
drv.configure = WdtConfigure;
ret = WdtDriverInit(&drv, WDT_DRIVER_NAME);
if (ret != EOK) {
KPrintf("Watchdog driver init error %d\n", ret);
return ERROR;
}
ret = WdtDriverAttachToBus(WDT_DRIVER_NAME, WDT_BUS_NAME);
if (ret != EOK) {
KPrintf("Watchdog driver attach error %d\n", ret);
return ERROR;
}
dev.dev_done = &dev_done;
ret = WdtDeviceRegister(&dev, WDT_DEVICE_NAME);
if (ret != EOK) {
KPrintf("Watchdog device register error %d\n", ret);
return ERROR;
}
ret = WdtDeviceAttachToBus(WDT_DEVICE_NAME, WDT_BUS_NAME);
if (ret != EOK) {
KPrintf("Watchdog device register error %d\n", ret);
return ERROR;
}
}
Ubiquitous/XiUOS/board/aiit-arm32-board/third_party_driver/watchdog/hardware_wdg.c
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/**
******************************************************************************
* @file stm32f4xx_iwdg.c
* @author MCD Application Team
* @version V1.0.0
* @date 30-September-2011
* @brief This file provides firmware functions to manage the following
* functionalities of the Independent watchdog (IWDG) peripheral:
* - Prescaler and Counter configuration
* - IWDG activation
* - Flag management
*
* @verbatim
*
* ===================================================================
* IWDG features
* ===================================================================
*
* The IWDG can be started by either software or hardware (configurable
* through option byte).
*
* The IWDG is clocked by its own dedicated low-speed clock (LSI) and
* thus stays active even if the main clock fails.
* Once the IWDG is started, the LSI is forced ON and cannot be disabled
* (LSI cannot be disabled too), and the counter starts counting down from
* the reset value of 0xFFF. When it reaches the end of count value (0x000)
* a system reset is generated.
* The IWDG counter should be reloaded at regular intervals to prevent
* an MCU reset.
*
* The IWDG is implemented in the VDD voltage domain that is still functional
* in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY).
*
* IWDGRST flag in RCC_CSR register can be used to inform when a IWDG
* reset occurs.
*
* Min-max timeout value @32KHz (LSI): ~125us / ~32.7s
* The IWDG timeout may vary due to LSI frequency dispersion. STM32F4xx
* devices provide the capability to measure the LSI frequency (LSI clock
* connected internally to TIM5 CH4 input capture). The measured value
* can be used to have an IWDG timeout with an acceptable accuracy.
* For more information, please refer to the STM32F4xx Reference manual
*
*
* ===================================================================
* How to use this driver
* ===================================================================
* 1. Enable write access to IWDG_PR and IWDG_RLR registers using
* IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable) function
*
* 2. Configure the IWDG prescaler using IWDG_SetPrescaler() function
*
* 3. Configure the IWDG counter value using IWDG_SetReload() function.
* This value will be loaded in the IWDG counter each time the counter
* is reloaded, then the IWDG will start counting down from this value.
*
* 4. Start the IWDG using IWDG_Enable() function, when the IWDG is used
* in software mode (no need to enable the LSI, it will be enabled
* by hardware)
*
* 5. Then the application program must reload the IWDG counter at regular
* intervals during normal operation to prevent an MCU reset, using
* IWDG_ReloadCounter() function.
*
* @endverbatim
*
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/**
* @file: hardware_wdg.c
* @brief: support hardware wdg function
* @version: 1.0
* @author: AIIT XUOS Lab
* @date: 2021/4/25
*/
/*************************************************
File name: hardware_wdg.c
Description: support hardware wdg function
Others:
History:
1. Date: 2021-04-25
Author: AIIT XUOS Lab
Modification:
1. rename stm32f4xx_iwdg.c for XiUOS
*************************************************/
/* Includes ------------------------------------------------------------------*/
#include <hardware_iwdg.h>
#include <stm32_assert_template.h>
/** @addtogroup STM32F4xx_StdPeriph_Driver
* @{
*/
/** @defgroup IWDG
* @brief IWDG driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* KR register bit mask */
#define KR_KEY_RELOAD ((uint16_t)0xAAAA)
#define KR_KEY_ENABLE ((uint16_t)0xCCCC)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup IWDG_Private_Functions
* @{
*/
/** @defgroup IWDG_Group1 Prescaler and Counter configuration functions
* @brief Prescaler and Counter configuration functions
*
@verbatim
===============================================================================
Prescaler and Counter configuration functions
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables write access to IWDG_PR and IWDG_RLR registers.
* @param IWDG_WriteAccess: new state of write access to IWDG_PR and IWDG_RLR registers.
* This parameter can be one of the following values:
* @arg IWDG_WriteAccess_Enable: Enable write access to IWDG_PR and IWDG_RLR registers
* @arg IWDG_WriteAccess_Disable: Disable write access to IWDG_PR and IWDG_RLR registers
* @retval None
*/
void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess)
{
/* Check the parameters */
assert_param(IS_IWDG_WRITE_ACCESS(IWDG_WriteAccess));
IWDG->KR = IWDG_WriteAccess;
}
/**
* @brief Sets IWDG Prescaler value.
* @param IWDG_Prescaler: specifies the IWDG Prescaler value.
* This parameter can be one of the following values:
* @arg IWDG_Prescaler_4: IWDG prescaler set to 4
* @arg IWDG_Prescaler_8: IWDG prescaler set to 8
* @arg IWDG_Prescaler_16: IWDG prescaler set to 16
* @arg IWDG_Prescaler_32: IWDG prescaler set to 32
* @arg IWDG_Prescaler_64: IWDG prescaler set to 64
* @arg IWDG_Prescaler_128: IWDG prescaler set to 128
* @arg IWDG_Prescaler_256: IWDG prescaler set to 256
* @retval None
*/
void IWDG_SetPrescaler(uint8_t IWDG_Prescaler)
{
/* Check the parameters */
assert_param(IS_IWDG_PRESCALER(IWDG_Prescaler));
IWDG->PR = IWDG_Prescaler;
}
/**
* @brief Sets IWDG Reload value.
* @param Reload: specifies the IWDG Reload value.
* This parameter must be a number between 0 and 0x0FFF.
* @retval None
*/
void IWDG_SetReload(uint16_t Reload)
{
/* Check the parameters */
assert_param(IS_IWDG_RELOAD(Reload));
IWDG->RLR = Reload;
}
/**
* @brief Reloads IWDG counter with value defined in the reload register
* (write access to IWDG_PR and IWDG_RLR registers disabled).
* @param None
* @retval None
*/
void IWDG_ReloadCounter(void)
{
IWDG->KR = KR_KEY_RELOAD;
}
/**
* @}
*/
/** @defgroup IWDG_Group2 IWDG activation function
* @brief IWDG activation function
*
@verbatim
===============================================================================
IWDG activation function
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables IWDG (write access to IWDG_PR and IWDG_RLR registers disabled).
* @param None
* @retval None
*/
void IWDG_Enable(void)
{
IWDG->KR = KR_KEY_ENABLE;
}
/**
* @}
*/
/** @defgroup IWDG_Group3 Flag management function
* @brief Flag management function
*
@verbatim
===============================================================================
Flag management function
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the specified IWDG flag is set or not.
* @param IWDG_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg IWDG_FLAG_PVU: Prescaler Value Update on going
* @arg IWDG_FLAG_RVU: Reload Value Update on going
* @retval The new state of IWDG_FLAG (SET or RESET).
*/
FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_IWDG_FLAG(IWDG_FLAG));
if ((IWDG->SR & IWDG_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
/* Return the flag status */
return bitstatus;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/