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/**
******************************************************************************
* @file USB_Device/HID_Standalone/Src/usbd_conf.c
* @author MCD Application Team
* @brief This file implements the USB Device library callbacks and MSP
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
PCD_HandleTypeDef hpcd;
/* Private function prototypes -----------------------------------------------*/
static void SystemClockConfig_STOP(void);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
PCD BSP Routines
*******************************************************************************/
/**
* @brief Initializes the PCD MSP.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hpcd->Instance == USB_OTG_FS)
{
/* Configure USB FS GPIOs */
__HAL_RCC_GPIOA_CLK_ENABLE();
/* Configure DM DP Pins */
GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Configure VBUS Pin */
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Configure ID pin */
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Enable USB FS Clock */
__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
/* Set USBFS Interrupt priority */
HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0);
/* Enable USBFS Interrupt */
HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
if(hpcd->Init.low_power_enable == 1)
{
/* Enable EXTI Line 18 for USB wakeup*/
__HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
__HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
__HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT();
/* Set EXTI Wakeup Interrupt priority*/
HAL_NVIC_SetPriority(OTG_FS_WKUP_IRQn, 0, 0);
/* Enable EXTI Interrupt */
HAL_NVIC_EnableIRQ(OTG_FS_WKUP_IRQn);
}
}
else if(hpcd->Instance == USB_OTG_HS)
{
/* Configure USB HS GPIOs */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/* CLK */
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* D0 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* D1 D2 D3 D4 D5 D6 D7 */
GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_5 |\
GPIO_PIN_10 | GPIO_PIN_2 | GPIO_PIN_12 | GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* STP */
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* NXT */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* DIR */
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();
/* Enable USB HS Clocks */
__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
/* Set USBHS Interrupt to the lowest priority */
HAL_NVIC_SetPriority(OTG_HS_IRQn, 5, 0);
/* Enable USBHS Interrupt */
HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
if(hpcd->Init.low_power_enable == 1)
{
/* Enable EXTI Line 20 for USB wakeup*/
__HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG();
__HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
__HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_IT();
/* Set EXTI Wakeup Interrupt priority*/
HAL_NVIC_SetPriority(OTG_HS_WKUP_IRQn, 0, 0);
/* Enable EXTI Interrupt */
HAL_NVIC_EnableIRQ(OTG_HS_WKUP_IRQn);
}
}
}
/**
* @brief De-Initializes the PCD MSP.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
{
if(hpcd->Instance == USB_OTG_FS)
{
/* Disable USB FS Clock */
__HAL_RCC_USB_OTG_FS_CLK_DISABLE();
__HAL_RCC_SYSCFG_CLK_DISABLE();
}
else if(hpcd->Instance == USB_OTG_HS)
{
/* Disable USB HS Clocks */
__HAL_RCC_USB_OTG_HS_CLK_DISABLE();
__HAL_RCC_SYSCFG_CLK_DISABLE();
}
}
/*******************************************************************************
LL Driver Callbacks (PCD -> USB Device Library)
*******************************************************************************/
/**
* @brief SetupStage callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
}
/**
* @brief DataOut Stage callback.
* @param hpcd: PCD handle
* @param epnum: Endpoint Number
* @retval None
*/
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}
/**
* @brief DataIn Stage callback.
* @param hpcd: PCD handle
* @param epnum: Endpoint Number
* @retval None
*/
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
}
/**
* @brief SOF callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
USBD_LL_SOF(hpcd->pData);
}
/**
* @brief Reset callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{
USBD_SpeedTypeDef speed = USBD_SPEED_FULL;
/* Set USB Current Speed */
switch(hpcd->Init.speed)
{
case PCD_SPEED_HIGH:
speed = USBD_SPEED_HIGH;
break;
case PCD_SPEED_FULL:
speed = USBD_SPEED_FULL;
break;
default:
speed = USBD_SPEED_FULL;
break;
}
/* Reset Device */
USBD_LL_Reset(hpcd->pData);
USBD_LL_SetSpeed(hpcd->pData, speed);
}
/**
* @brief Suspend callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
__IO uint32_t i=0;
if(hpcd->Instance == USB_OTG_HS)
{
__HAL_USB_OTG_HS_WAKEUP_EXTI_DISABLE_IT();
__HAL_PCD_GATE_PHYCLOCK(hpcd);
/* Wait timeout of 6 ULPI PHY clock ~= 18 cpu clocks */
for (i=0; i<18; i++)
{
__NOP();
}
if (__HAL_PCD_IS_PHY_SUSPENDED(hpcd)) /* when set then false resume condition*/
{
__HAL_USB_OTG_HS_WAKEUP_EXTI_CLEAR_FLAG();
__HAL_USB_OTG_HS_WAKEUP_EXTI_ENABLE_IT();
USBD_LL_Suspend(hpcd->pData);
/*Enter in STOP mode */
if (hpcd->Init.low_power_enable)
{
/* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register */
SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
}
}
}
else
{
__HAL_PCD_GATE_PHYCLOCK(hpcd);
USBD_LL_Suspend(hpcd->pData);
/*Enter in STOP mode */
if (hpcd->Init.low_power_enable)
{
/* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register */
SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
}
}
}
/**
* @brief Resume callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
USBD_LL_Resume(hpcd->pData);
}
/**
* @brief ISOOUTIncomplete callback.
* @param hpcd: PCD handle
* @param epnum: Endpoint Number
* @retval None
*/
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
USBD_LL_IsoOUTIncomplete(hpcd->pData, epnum);
}
/**
* @brief ISOINIncomplete callback.
* @param hpcd: PCD handle
* @param epnum: Endpoint Number
* @retval None
*/
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
USBD_LL_IsoINIncomplete(hpcd->pData, epnum);
}
/**
* @brief ConnectCallback callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
USBD_LL_DevConnected(hpcd->pData);
}
/**
* @brief Disconnect callback.
* @param hpcd: PCD handle
* @retval None
*/
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
USBD_LL_DevDisconnected(hpcd->pData);
}
/*******************************************************************************
LL Driver Interface (USB Device Library --> PCD)
*******************************************************************************/
/**
* @brief Initializes the Low Level portion of the Device driver.
* @param pdev: Device handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev)
{
#ifdef USE_USB_FS
/* Set LL Driver parameters */
hpcd.Instance = USB_OTG_FS;
hpcd.Init.dev_endpoints = 4;
hpcd.Init.use_dedicated_ep1 = 0;
hpcd.Init.dma_enable = 0;
hpcd.Init.low_power_enable = 1;
hpcd.Init.phy_itface = PCD_PHY_EMBEDDED;
hpcd.Init.Sof_enable = 0;
hpcd.Init.speed = PCD_SPEED_FULL;
hpcd.Init.vbus_sensing_enable = 1;
hpcd.Init.lpm_enable = 0;
/* Link The driver to the stack */
hpcd.pData = pdev;
pdev->pData = &hpcd;
/* Initialize LL Driver */
HAL_PCD_Init(&hpcd);
HAL_PCDEx_SetRxFiFo(&hpcd, 0x80);
HAL_PCDEx_SetTxFiFo(&hpcd, 0, 0x40);
HAL_PCDEx_SetTxFiFo(&hpcd, 1, 0x80);
#endif
#ifdef USE_USB_HS
/* Set LL Driver parameters */
hpcd.Instance = USB_OTG_HS;
hpcd.Init.dev_endpoints = 6;
hpcd.Init.use_dedicated_ep1 = 0;
/* Be aware that enabling DMA mode will result in data being sent only by
multiple of 4 packet sizes. This is due to the fact that USB DMA does
not allow sending data from non word-aligned addresses.
For this specific application, it is advised to not enable this option
unless required. */
hpcd.Init.dma_enable = 0;
hpcd.Init.low_power_enable = 0;
hpcd.Init.phy_itface = PCD_PHY_ULPI;
hpcd.Init.Sof_enable = 0;
hpcd.Init.speed = PCD_SPEED_HIGH;
hpcd.Init.vbus_sensing_enable = 1;
hpcd.Init.lpm_enable = 0;
/* Link The driver to the stack */
hpcd.pData = pdev;
pdev->pData = &hpcd;
/* Initialize LL Driver */
HAL_PCD_Init(&hpcd);
HAL_PCDEx_SetRxFiFo(&hpcd, 0x200);
HAL_PCDEx_SetTxFiFo(&hpcd, 0, 0x40);
HAL_PCDEx_SetTxFiFo(&hpcd, 1, 0x100);
#endif
return USBD_OK;
}
/**
* @brief De-Initializes the Low Level portion of the Device driver.
* @param pdev: Device handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
{
HAL_PCD_DeInit(pdev->pData);
return USBD_OK;
}
/**
* @brief Starts the Low Level portion of the Device driver.
* @param pdev: Device handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev)
{
HAL_PCD_Start(pdev->pData);
return USBD_OK;
}
/**
* @brief Stops the Low Level portion of the Device driver.
* @param pdev: Device handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev)
{
HAL_PCD_Stop(pdev->pData);
return USBD_OK;
}
/**
* @brief Opens an endpoint of the Low Level Driver.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @param ep_type: Endpoint Type
* @param ep_mps: Endpoint Max Packet Size
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev,
uint8_t ep_addr,
uint8_t ep_type,
uint16_t ep_mps)
{
HAL_PCD_EP_Open(pdev->pData,
ep_addr,
ep_mps,
ep_type);
return USBD_OK;
}
/**
* @brief Closes an endpoint of the Low Level Driver.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
HAL_PCD_EP_Close(pdev->pData, ep_addr);
return USBD_OK;
}
/**
* @brief Flushes an endpoint of the Low Level Driver.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
HAL_PCD_EP_Flush(pdev->pData, ep_addr);
return USBD_OK;
}
/**
* @brief Sets a Stall condition on an endpoint of the Low Level Driver.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
return USBD_OK;
}
/**
* @brief Clears a Stall condition on an endpoint of the Low Level Driver.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);
return USBD_OK;
}
/**
* @brief Returns Stall condition.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval Stall (1: Yes, 0: No)
*/
uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
PCD_HandleTypeDef *hpcd = pdev->pData;
if((ep_addr & 0x80) == 0x80)
{
return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
}
else
{
return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
}
}
/**
* @brief Assigns a USB address to the device.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr)
{
HAL_PCD_SetAddress(pdev->pData, dev_addr);
return USBD_OK;
}
/**
* @brief Transmits data over an endpoint.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @param pbuf: Pointer to data to be sent
* @param size: Data size
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev,
uint8_t ep_addr,
uint8_t *pbuf,
uint32_t size)
{
HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
return USBD_OK;
}
/**
* @brief Prepares an endpoint for reception.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @param pbuf: Pointer to data to be received
* @param size: Data size
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev,
uint8_t ep_addr,
uint8_t *pbuf,
uint32_t size)
{
HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
return USBD_OK;
}
/**
* @brief Returns the last transferred packet size.
* @param pdev: Device handle
* @param ep_addr: Endpoint Number
* @retval Received Data Size
*/
uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
{
return HAL_PCD_EP_GetRxCount(pdev->pData, ep_addr);
}
/**
* @brief Configures system clock after wakeup from STOP mode.
* @param None
* @retval None
*/
static void SystemClockConfig_STOP(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Activate the OverDrive to reach the 180 MHz Frequency */
HAL_PWREx_EnableOverDrive();
/* Select PLLSAI output as USB clock source */
PeriphClkInitStruct.PLLSAI.PLLSAIM = 8;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 384;
PeriphClkInitStruct.PLLSAI.PLLSAIP = RCC_PLLSAIP_DIV8;
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_CK48;
PeriphClkInitStruct.Clk48ClockSelection = RCC_CK48CLKSOURCE_PLLSAIP;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
}
/**
* @brief GPIO EXTI Callback function
* Handle remote-wakeup through key button
* @param GPIO_Pin
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if (GPIO_Pin == KEY_BUTTON_PIN)
{
if ((((USBD_HandleTypeDef *)hpcd.pData)->dev_remote_wakeup == 1)&&
(((USBD_HandleTypeDef *)hpcd.pData)->dev_state == USBD_STATE_SUSPENDED))
{
if ((&hpcd)->Init.low_power_enable)
{
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
SystemClockConfig_STOP();
}
/* Ungate PHY clock */
__HAL_PCD_UNGATE_PHYCLOCK((&hpcd));
/* Activate Remote wakeup */
HAL_PCD_ActivateRemoteWakeup((&hpcd));
/* Remote wakeup delay */
HAL_Delay(10);
/* Disable Remote wakeup */
HAL_PCD_DeActivateRemoteWakeup((&hpcd));
/* change state to configured */
((USBD_HandleTypeDef *)hpcd.pData)->dev_state = USBD_STATE_CONFIGURED;
/* Change remote_wakeup feature to 0*/
((USBD_HandleTypeDef *)hpcd.pData)->dev_remote_wakeup=0;
}
}
}
/**
* @brief Delays routine for the USB Device Library.
* @param Delay: Delay in ms
* @retval None
*/
void USBD_LL_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
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