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/**
******************************************************************************
* @file USB_Host/FWupgrade_Standalone/Src/iap_menu.c
* @author MCD Application Team
* @brief COMMAND IAP Execute Application
******************************************************************************
* @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 ------------------------------------------------------------*/
/* State Machine for the DEMO State */
#define DEMO_INIT ((uint8_t)0x00)
#define DEMO_IAP ((uint8_t)0x01)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint32_t UploadCondition = 0x00;
DIR dir;
FILINFO fno;
static uint8_t Demo_State = DEMO_INIT;
extern char USBDISKPath[4];
/* Private function prototypes -----------------------------------------------*/
static void IAP_UploadTimeout(void);
static void USBH_USR_BufferSizeControl(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Demo application for IAP through USB mass storage.
* @param None
* @retval None
*/
void FW_UPGRADE_Process(void)
{
switch(Demo_State)
{
case DEMO_INIT:
/* Register the file system object to the FatFs module */
if (FATFS_LinkDriver(&USBH_Driver, USBDISKPath) == 0)
{
if (f_mount(&USBH_fatfs, "", 0) != FR_OK)
{
/* FatFs initialization fails */
/* Toggle LED3 and LED4 in infinite loop */
FatFs_Fail_Handler();
}
}
/* Go to IAP menu */
Demo_State = DEMO_IAP;
break;
case DEMO_IAP:
while(USBH_MSC_IsReady(&hUSBHost))
{
/* Control BUFFER_SIZE value */
USBH_USR_BufferSizeControl();
/* Keep LED1 and LED3 Off when Device connected */
BSP_LED_Off(LED1);
BSP_LED_Off(LED3);
/* KEY Button pressed Delay */
IAP_UploadTimeout();
/* Writes Flash memory */
COMMAND_Download();
/* Check if KEY Button is already pressed */
if((UploadCondition == 0x01))
{
/* Reads all flash memory */
COMMAND_Upload();
}
else
{
/* Turn LED2 Off: Download Done */
BSP_LED_Off(LED2);
/* Turn LED1 On: Waiting KEY button pressed */
BSP_LED_On(LED1);
}
/* Waiting KEY Button Released */
while((BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET) && (Appli_state == APPLICATION_READY))
{}
/* Waiting KEY Button Pressed */
while((BSP_PB_GetState(BUTTON_KEY) != GPIO_PIN_RESET) && (Appli_state == APPLICATION_READY))
{}
/* Waiting KEY Button Released */
while((BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET) && (Appli_state == APPLICATION_READY))
{}
if(Appli_state == APPLICATION_READY)
{
/* Jump to user application code located in the internal Flash memory */
COMMAND_Jump();
}
}
break;
default:
break;
}
if(Appli_state == APPLICATION_DISCONNECT)
{
/* Toggle LED3: USB device disconnected */
BSP_LED_Toggle(LED3);
HAL_Delay(100);
}
}
/**
* @brief Button state time control.
* @param None
* @retval None
*/
static void IAP_UploadTimeout(void)
{
/* Check if KEY button is pressed */
if(BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET)
{
/* To execute the UPLOAD command the KEY button should be kept pressed 3s
just after a board reset, at firmware startup */
HAL_Delay (3000);
if(BSP_PB_GetState(BUTTON_KEY) == GPIO_PIN_RESET)
{
/* UPLOAD command will be executed immediately after
completed execution of the DOWNLOAD command */
UploadCondition = 0x01;
/* Turn LED3 on : Upload condition Verified */
BSP_LED_On(LED3);
}
else
{
/* Only the DOWNLOAD command is executed */
UploadCondition = 0x00;
}
}
}
/**
* @brief Handles the program fail.
* @param None
* @retval None
*/
void Fail_Handler(void)
{
while(1)
{
/* Toggle LED3 */
BSP_LED_Toggle(LED3);
HAL_Delay(100);
}
}
/**
* @brief Handles the Flash Erase fail.
* @param None
* @retval None
*/
void Erase_Fail_Handler(void)
{
while(1)
{
/* Toggle LED2 and LED3 */
BSP_LED_Toggle(LED2);
BSP_LED_Toggle(LED3);
HAL_Delay(100);
}
}
/**
* @brief Handles the FatFs fail.
* @param None
* @retval None
*/
void FatFs_Fail_Handler(void)
{
while(1)
{
/* Toggle LED3 and LED4 */
BSP_LED_Toggle(LED3);
BSP_LED_Toggle(LED4);
HAL_Delay(100);
}
}
/**
* @brief Controls Buffer size value.
* @param None
* @retval None
*/
static void USBH_USR_BufferSizeControl(void)
{
/* Control BUFFER_SIZE and limit this value to 32Kbyte maximum */
if((BUFFER_SIZE % 4 != 0x00) || (BUFFER_SIZE / 4 > 8192))
{
while(1)
{
/* Toggle LED2, LED3 and LED4 */
BSP_LED_Toggle(LED2);
BSP_LED_Toggle(LED3);
BSP_LED_Toggle(LED4);
HAL_Delay(100);
}
}
}