diff --git a/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.cpp b/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.cpp
index 8bae46777..41064350c 100644
--- a/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.cpp
+++ b/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.cpp
@@ -8,8 +8,8 @@
******************************************************************************
* @attention
*
- * © Copyright © 2016 STMicroelectronics International N.V.
- * All rights reserved.
+ * Copyright © 2016 STMicroelectronics International N.V.
+ * All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
@@ -47,14 +47,11 @@
/** @addtogroup EEPROM_Emulation
* @{
*/
-#if defined(STM32GENERIC) && (defined(STM32F4))
+#if defined(STM32GENERIC) && defined(STM32F4)
/* Includes ------------------------------------------------------------------*/
#include "eeprom_emul.h"
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Global variable used to store variable value in read sequence */
@@ -79,76 +76,66 @@ static uint16_t EE_VerifyPageFullyErased(uint32_t Address);
* - FLASH_COMPLETE: on success
*/
uint16_t EE_Initialize(void) {
- uint16_t PageStatus0 = 6, PageStatus1 = 6;
- uint16_t VarIdx = 0;
- uint16_t EepromStatus = 0, ReadStatus = 0;
- int16_t x = -1;
- HAL_StatusTypeDef FlashStatus;
- uint32_t SectorError = 0;
- FLASH_EraseInitTypeDef pEraseInit;
-
-
- /* Get Page0 status */
- PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
- /* Get Page1 status */
- PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ /* Get Page0 and Page1 status */
+ uint16_t PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS),
+ PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ FLASH_EraseInitTypeDef pEraseInit;
pEraseInit.TypeErase = TYPEERASE_SECTORS;
pEraseInit.Sector = PAGE0_ID;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Check for invalid header states and repair if necessary */
+ uint32_t SectorError;
switch (PageStatus0) {
case ERASED:
if (PageStatus1 == VALID_PAGE) { /* Page0 erased, Page1 valid */
- /* Erase Page0 */
+ /* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
else if (PageStatus1 == RECEIVE_DATA) { /* Page0 erased, Page1 receive */
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
+ HAL_StatusTypeDef fStat = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ if (fStat != HAL_OK) return fStat;
}
/* Mark Page1 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE1_BASE_ADDRESS, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE1_BASE_ADDRESS, VALID_PAGE);
}
else { /* First EEPROM access (Page0&1 are erased) or invalid state -> format EEPROM */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
break;
case RECEIVE_DATA:
if (PageStatus1 == VALID_PAGE) { /* Page0 receive, Page1 valid */
/* Transfer data from Page1 to Page0 */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ int16_t x = -1;
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if (( *(__IO uint16_t*)(PAGE0_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
x = VarIdx;
if (VarIdx != x) {
/* Read the last variables' updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the Page0 */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
}
}
}
/* Mark Page0 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
pEraseInit.Sector = PAGE1_ID;
@@ -156,9 +143,8 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
else if (PageStatus1 == ERASED) { /* Page0 receive, Page1 erased */
@@ -167,20 +153,18 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
+ HAL_StatusTypeDef fStat = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ if (fStat != HAL_OK) return fStat;
}
/* Mark Page0 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
}
else { /* Invalid state -> format eeprom */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
break;
@@ -204,17 +188,18 @@ uint16_t EE_Initialize(void) {
}
else { /* Page0 valid, Page1 receive */
/* Transfer data from Page0 to Page1 */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ int16_t x = -1;
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if ((*(__IO uint16_t*)(PAGE1_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
x = VarIdx;
if (VarIdx != x) {
/* Read the last variables' updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the Page1 */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
}
@@ -229,19 +214,16 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
break;
default: /* Any other state -> format eeprom */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
- break;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
return HAL_OK;
@@ -259,11 +241,10 @@ uint16_t EE_Initialize(void) {
*/
uint16_t EE_VerifyPageFullyErased(uint32_t Address) {
uint32_t ReadStatus = 1;
- uint16_t AddressValue = 0x5555;
/* Check each active page address starting from end */
while (Address <= PAGE0_END_ADDRESS) {
/* Get the current location content to be compared with virtual address */
- AddressValue = (*(__IO uint16_t*)Address);
+ uint16_t AddressValue = (*(__IO uint16_t*)Address);
/* Compare the read address with the virtual address */
if (AddressValue != ERASED) {
/* In case variable value is read, reset ReadStatus flag */
@@ -288,26 +269,22 @@ uint16_t EE_VerifyPageFullyErased(uint32_t Address) {
* - NO_VALID_PAGE: if no valid page was found.
*/
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data) {
- uint16_t ValidPage = PAGE0;
- uint16_t AddressValue = 0x5555, ReadStatus = 1;
- uint32_t Address = EEPROM_START_ADDRESS, PageStartAddress = EEPROM_START_ADDRESS;
+ uint16_t ReadStatus = 1;
/* Get active Page for read operation */
- ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
/* Check if there is no valid page */
if (ValidPage == NO_VALID_PAGE) return NO_VALID_PAGE;
- /* Get the valid Page start Address */
- PageStartAddress = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
-
- /* Get the valid Page end Address */
- Address = (uint32_t)((EEPROM_START_ADDRESS - 2) + (uint32_t)((1 + ValidPage) * PAGE_SIZE));
+ /* Get the valid Page start and end Addresses */
+ uint32_t PageStartAddress = uint32_t(EEPROM_START_ADDRESS) + uint32_t(ValidPage * (PAGE_SIZE)),
+ Address = PageStartAddress + PAGE_SIZE - 2;
/* Check each active page address starting from end */
- while (Address > (PageStartAddress + 2)) {
+ while (Address > PageStartAddress + 2) {
/* Get the current location content to be compared with virtual address */
- AddressValue = (*(__IO uint16_t*)Address);
+ uint16_t AddressValue = (*(__IO uint16_t*)Address);
/* Compare the read address with the virtual address */
if (AddressValue == VirtAddress) {
@@ -353,16 +330,17 @@ uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data) {
* EEPROM formating
*/
static HAL_StatusTypeDef EE_Format(void) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint32_t SectorError = 0;
FLASH_EraseInitTypeDef pEraseInit;
-
pEraseInit.TypeErase = FLASH_TYPEERASE_SECTORS;
pEraseInit.Sector = PAGE0_ID;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
+
+ HAL_StatusTypeDef FlashStatus; // = HAL_OK
+
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
+ uint32_t SectorError;
FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
@@ -375,9 +353,9 @@ static HAL_StatusTypeDef EE_Format(void) {
pEraseInit.Sector = PAGE1_ID;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, just return the result code */
+ uint32_t SectorError;
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
return HAL_OK;
@@ -393,26 +371,20 @@ static HAL_StatusTypeDef EE_Format(void) {
* of no valid page was found
*/
static uint16_t EE_FindValidPage(uint8_t Operation) {
- uint16_t PageStatus0 = 6, PageStatus1 = 6;
-
- /* Get Page0 actual status */
- PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
-
- /* Get Page1 actual status */
- PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ /* Get Page0 and Page1 actual status */
+ uint16_t PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS),
+ PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
/* Write or read operation */
switch (Operation) {
case WRITE_IN_VALID_PAGE: /* ---- Write operation ---- */
if (PageStatus1 == VALID_PAGE) {
/* Page0 receiving data */
- if (PageStatus0 == RECEIVE_DATA) return PAGE0; /* Page0 valid */
- else return PAGE1; /* Page1 valid */
+ return (PageStatus0 == RECEIVE_DATA) ? PAGE0 : PAGE1;
}
else if (PageStatus0 == VALID_PAGE) {
/* Page1 receiving data */
- if (PageStatus1 == RECEIVE_DATA) return PAGE1; /* Page1 valid */
- else return PAGE0; /* Page0 valid */
+ return (PageStatus1 == RECEIVE_DATA) ? PAGE1 : PAGE0;
}
else
return NO_VALID_PAGE; /* No valid Page */
@@ -441,34 +413,26 @@ static uint16_t EE_FindValidPage(uint8_t Operation) {
* - Flash error code: on write Flash error
*/
static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Data) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint16_t ValidPage = PAGE0;
- uint32_t Address = EEPROM_START_ADDRESS, PageEndAddress = EEPROM_START_ADDRESS+PAGE_SIZE;
-
/* Get valid Page for write operation */
- ValidPage = EE_FindValidPage(WRITE_IN_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(WRITE_IN_VALID_PAGE);
/* Check if there is no valid page */
if (ValidPage == NO_VALID_PAGE) return NO_VALID_PAGE;
- /* Get the valid Page start Address */
- Address = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
-
- /* Get the valid Page end Address */
- PageEndAddress = (uint32_t)((EEPROM_START_ADDRESS - 1) + (uint32_t)((ValidPage + 1) * PAGE_SIZE));
+ /* Get the valid Page start and end Addresses */
+ uint32_t Address = uint32_t(EEPROM_START_ADDRESS) + uint32_t(ValidPage * (PAGE_SIZE)),
+ PageEndAddress = Address + PAGE_SIZE - 1;
/* Check each active page address starting from begining */
while (Address < PageEndAddress) {
/* Verify if Address and Address+2 contents are 0xFFFFFFFF */
if ((*(__IO uint32_t*)Address) == 0xFFFFFFFF) {
/* Set variable data */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address, Data);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address, Data);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
- /* Set variable virtual address */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address + 2, VirtAddress);
- /* Return program operation status */
- return FlashStatus;
+ /* Set variable virtual address, return status */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address + 2, VirtAddress);
}
else /* Next address location */
Address += 4;
@@ -490,16 +454,10 @@ static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Da
* - Flash error code: on write Flash error
*/
static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint32_t NewPageAddress = EEPROM_START_ADDRESS;
- uint16_t OldPageId=0;
- uint16_t ValidPage = PAGE0, VarIdx = 0;
- uint16_t EepromStatus = 0, ReadStatus = 0;
- uint32_t SectorError = 0;
- FLASH_EraseInitTypeDef pEraseInit;
-
/* Get active Page for read operation */
- ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint32_t NewPageAddress = EEPROM_START_ADDRESS;
+ uint16_t OldPageId = 0;
if (ValidPage == PAGE1) { /* Page1 valid */
/* New page address where variable will be moved to */
@@ -517,20 +475,20 @@ static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
return NO_VALID_PAGE; /* No valid Page */
/* Set the new Page status to RECEIVE_DATA status */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, RECEIVE_DATA);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, RECEIVE_DATA);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
/* Write the variable passed as parameter in the new active page */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
/* Transfer process: transfer variables from old to the new active page */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if (VirtAddVarTab[VarIdx] != VirtAddress) { /* Check each variable except the one passed as parameter */
/* Read the other last variable updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the new active page */
@@ -541,26 +499,24 @@ static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
}
}
+ FLASH_EraseInitTypeDef pEraseInit;
pEraseInit.TypeErase = TYPEERASE_SECTORS;
pEraseInit.Sector = OldPageId;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase the old Page: Set old Page status to ERASED status */
+ uint32_t SectorError;
FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
/* Set new Page status to VALID_PAGE status */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
-
- /* Return last operation flash status */
- return FlashStatus;
+ /* As the last operation, just return the result code */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, VALID_PAGE);
}
-#endif // STM32F4 || STM32F4xx
+#endif // STM32GENERIC && STM32F4
/**
* @}
diff --git a/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.h b/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.h
index 69852e3bc..428cccf0e 100644
--- a/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.h
+++ b/Marlin/src/HAL/HAL_STM32F4/EEPROM_Emul/eeprom_emul.h
@@ -53,55 +53,53 @@
/* Exported constants --------------------------------------------------------*/
/* EEPROM emulation firmware error codes */
-#define EE_OK (uint32_t)HAL_OK
-#define EE_ERROR (uint32_t)HAL_ERROR
-#define EE_BUSY (uint32_t)HAL_BUSY
-#define EE_TIMEOUT (uint32_t)HAL_TIMEOUT
+#define EE_OK uint32_t(HAL_OK)
+#define EE_ERROR uint32_t(HAL_ERROR)
+#define EE_BUSY uint32_t(HAL_BUSY)
+#define EE_TIMEOUT uint32_t(HAL_TIMEOUT)
/* Define the size of the sectors to be used */
-#define PAGE_SIZE (uint32_t)0x4000 /* Page size = 16KByte */
+#define PAGE_SIZE uint32_t(0x4000) /* Page size = 16KByte */
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
be done by word */
-#define VOLTAGE_RANGE (uint8_t)VOLTAGE_RANGE_3
+#define VOLTAGE_RANGE uint8_t(VOLTAGE_RANGE_3)
/* EEPROM start address in Flash */
-#define EEPROM_START_ADDRESS ((uint32_t)0x08078000) /* EEPROM emulation start address:
- after 480KByte of used Flash memory */
+#define EEPROM_START_ADDRESS uint32_t(0x08078000) /* EEPROM emulation start address:
+ after 480KByte of used Flash memory */
/* Pages 0 and 1 base and end addresses */
-#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x0000))
-#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + PAGE_SIZE - 1))
-#define PAGE0_ID FLASH_SECTOR_1
+#define PAGE0_BASE_ADDRESS uint32_t(EEPROM_START_ADDRESS + 0x0000)
+#define PAGE0_END_ADDRESS uint32_t(EEPROM_START_ADDRESS + PAGE_SIZE - 1)
+#define PAGE0_ID FLASH_SECTOR_1
-#define PAGE1_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x4000))
-#define PAGE1_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 2 * (PAGE_SIZE) - 1))
-#define PAGE1_ID FLASH_SECTOR_2
+#define PAGE1_BASE_ADDRESS uint32_t(EEPROM_START_ADDRESS + 0x4000)
+#define PAGE1_END_ADDRESS uint32_t(EEPROM_START_ADDRESS + 2 * (PAGE_SIZE) - 1)
+#define PAGE1_ID FLASH_SECTOR_2
/* Used Flash pages for EEPROM emulation */
-#define PAGE0 ((uint16_t)0x0000)
-#define PAGE1 ((uint16_t)0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
+#define PAGE0 uint16_t(0x0000)
+#define PAGE1 uint16_t(0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
/* No valid page define */
-#define NO_VALID_PAGE ((uint16_t)0x00AB)
+#define NO_VALID_PAGE uint16_t(0x00AB)
/* Page status definitions */
-#define ERASED ((uint16_t)0xFFFF) /* Page is empty */
-#define RECEIVE_DATA ((uint16_t)0xEEEE) /* Page is marked to receive data */
-#define VALID_PAGE ((uint16_t)0x0000) /* Page containing valid data */
+#define ERASED uint16_t(0xFFFF) /* Page is empty */
+#define RECEIVE_DATA uint16_t(0xEEEE) /* Page is marked to receive data */
+#define VALID_PAGE uint16_t(0x0000) /* Page containing valid data */
/* Valid pages in read and write defines */
-#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
-#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
+#define READ_FROM_VALID_PAGE uint8_t(0x00)
+#define WRITE_IN_VALID_PAGE uint8_t(0x01)
/* Page full define */
-#define PAGE_FULL ((uint8_t)0x80)
+#define PAGE_FULL uint8_t(0x80)
/* Variables' number */
-#define NB_OF_VAR ((uint16_t)4096)
+#define NB_OF_VAR uint16_t(4096)
-/* Exported types ------------------------------------------------------------*/
-/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
uint16_t EE_Initialize(void);
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
diff --git a/Marlin/src/HAL/HAL_STM32F4/EmulatedEeprom.cpp b/Marlin/src/HAL/HAL_STM32F4/EmulatedEeprom.cpp
index c41366319..0a2f6e452 100644
--- a/Marlin/src/HAL/HAL_STM32F4/EmulatedEeprom.cpp
+++ b/Marlin/src/HAL/HAL_STM32F4/EmulatedEeprom.cpp
@@ -17,13 +17,13 @@
*
*/
-#if defined(STM32GENERIC) && (defined(STM32F4))
-
/**
- * Description: functions for I2C connected external EEPROM.
+ * Description: Functions for a Flash emulated EEPROM
* Not platform dependent.
*/
+#if defined(STM32GENERIC) && defined(STM32F4)
+
#include "../../inc/MarlinConfig.h"
#if ENABLED(EEPROM_SETTINGS) && NONE(I2C_EEPROM, SPI_EEPROM)
@@ -69,37 +69,34 @@ void eeprom_init() {
}
void eeprom_write_byte(uint8_t *pos, unsigned char value) {
- uint16_t eeprom_address = (unsigned) pos;
+ uint16_t eeprom_address = unsigned(pos);
eeprom_init();
HAL_FLASH_Unlock();
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
- if (EE_WriteVariable(eeprom_address, (uint16_t) value) != EE_OK)
- for (;;) HAL_Delay(1); // Spin forever until watchdog reset
+ if (EE_WriteVariable(eeprom_address, uint16_t(value)) != EE_OK)
+ for (;;) HAL_Delay(1); // Spin forever until watchdog reset
HAL_FLASH_Lock();
}
uint8_t eeprom_read_byte(uint8_t *pos) {
- uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned)pos;
-
eeprom_init();
- if (EE_ReadVariable(eeprom_address, &data) != EE_OK) {
- return (unsigned char)data;
- }
- return (unsigned char)data;
+ uint16_t data = 0xFF;
+ uint16_t eeprom_address = unsigned(pos);
+ (void)EE_ReadVariable(eeprom_address, &data); // Data unchanged on error
+
+ return uint8_t(data);
}
void eeprom_read_block(void *__dst, const void *__src, size_t __n) {
- uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned) __src;
-
eeprom_init();
+ uint16_t data = 0xFF;
+ uint16_t eeprom_address = (unsigned)__src;
for (uint8_t c = 0; c < __n; c++) {
EE_ReadVariable(eeprom_address+c, &data);
*((uint8_t*)__dst + c) = data;
diff --git a/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.cpp b/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.cpp
index 10b3219e9..bd17f3287 100644
--- a/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.cpp
+++ b/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.cpp
@@ -8,8 +8,8 @@
******************************************************************************
* @attention
*
- * © Copyright © 2016 STMicroelectronics International N.V.
- * All rights reserved.
+ * Copyright © 2016 STMicroelectronics International N.V.
+ * All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
@@ -52,9 +52,6 @@
/* Includes ------------------------------------------------------------------*/
#include "eeprom_emul.h"
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Global variable used to store variable value in read sequence */
@@ -79,76 +76,66 @@ static uint16_t EE_VerifyPageFullyErased(uint32_t Address);
* - FLASH_COMPLETE: on success
*/
uint16_t EE_Initialize(void) {
- uint16_t PageStatus0 = 6, PageStatus1 = 6;
- uint16_t VarIdx = 0;
- uint16_t EepromStatus = 0, ReadStatus = 0;
- int16_t x = -1;
- HAL_StatusTypeDef FlashStatus;
- uint32_t SectorError = 0;
- FLASH_EraseInitTypeDef pEraseInit;
-
-
- /* Get Page0 status */
- PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
- /* Get Page1 status */
- PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ /* Get Page0 and Page1 status */
+ uint16_t PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS),
+ PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ FLASH_EraseInitTypeDef pEraseInit;
pEraseInit.TypeErase = TYPEERASE_SECTORS;
pEraseInit.Sector = PAGE0_ID;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Check for invalid header states and repair if necessary */
+ uint32_t SectorError;
switch (PageStatus0) {
case ERASED:
if (PageStatus1 == VALID_PAGE) { /* Page0 erased, Page1 valid */
- /* Erase Page0 */
+ /* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
else if (PageStatus1 == RECEIVE_DATA) { /* Page0 erased, Page1 receive */
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
+ HAL_StatusTypeDef fStat = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ if (fStat != HAL_OK) return fStat;
}
/* Mark Page1 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE1_BASE_ADDRESS, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE1_BASE_ADDRESS, VALID_PAGE);
}
else { /* First EEPROM access (Page0&1 are erased) or invalid state -> format EEPROM */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
break;
case RECEIVE_DATA:
if (PageStatus1 == VALID_PAGE) { /* Page0 receive, Page1 valid */
/* Transfer data from Page1 to Page0 */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ int16_t x = -1;
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if (( *(__IO uint16_t*)(PAGE0_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
x = VarIdx;
if (VarIdx != x) {
/* Read the last variables' updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the Page0 */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
}
}
}
/* Mark Page0 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
pEraseInit.Sector = PAGE1_ID;
@@ -156,9 +143,8 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
else if (PageStatus1 == ERASED) { /* Page0 receive, Page1 erased */
@@ -167,20 +153,18 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
+ HAL_StatusTypeDef fStat = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ if (fStat != HAL_OK) return fStat;
}
/* Mark Page0 as valid */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, PAGE0_BASE_ADDRESS, VALID_PAGE);
}
else { /* Invalid state -> format eeprom */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
break;
@@ -204,17 +188,18 @@ uint16_t EE_Initialize(void) {
}
else { /* Page0 valid, Page1 receive */
/* Transfer data from Page0 to Page1 */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ int16_t x = -1;
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if ((*(__IO uint16_t*)(PAGE1_BASE_ADDRESS + 6)) == VirtAddVarTab[VarIdx])
x = VarIdx;
if (VarIdx != x) {
/* Read the last variables' updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the Page1 */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddVarTab[VarIdx], DataVar);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
}
@@ -229,19 +214,16 @@ uint16_t EE_Initialize(void) {
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, simply return the result */
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
}
break;
default: /* Any other state -> format eeprom */
/* Erase both Page0 and Page1 and set Page0 as valid page */
- FlashStatus = EE_Format();
- /* If erase/program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
- break;
+ /* As the last operation, simply return the result */
+ return EE_Format();
}
return HAL_OK;
@@ -259,11 +241,10 @@ uint16_t EE_Initialize(void) {
*/
uint16_t EE_VerifyPageFullyErased(uint32_t Address) {
uint32_t ReadStatus = 1;
- uint16_t AddressValue = 0x5555;
/* Check each active page address starting from end */
while (Address <= PAGE0_END_ADDRESS) {
/* Get the current location content to be compared with virtual address */
- AddressValue = (*(__IO uint16_t*)Address);
+ uint16_t AddressValue = (*(__IO uint16_t*)Address);
/* Compare the read address with the virtual address */
if (AddressValue != ERASED) {
/* In case variable value is read, reset ReadStatus flag */
@@ -288,26 +269,22 @@ uint16_t EE_VerifyPageFullyErased(uint32_t Address) {
* - NO_VALID_PAGE: if no valid page was found.
*/
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data) {
- uint16_t ValidPage = PAGE0;
- uint16_t AddressValue = 0x5555, ReadStatus = 1;
- uint32_t Address = EEPROM_START_ADDRESS, PageStartAddress = EEPROM_START_ADDRESS;
+ uint16_t ReadStatus = 1;
/* Get active Page for read operation */
- ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
/* Check if there is no valid page */
if (ValidPage == NO_VALID_PAGE) return NO_VALID_PAGE;
- /* Get the valid Page start Address */
- PageStartAddress = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
-
- /* Get the valid Page end Address */
- Address = (uint32_t)((EEPROM_START_ADDRESS - 2) + (uint32_t)((1 + ValidPage) * PAGE_SIZE));
+ /* Get the valid Page start and end Addresses */
+ uint32_t PageStartAddress = uint32_t(EEPROM_START_ADDRESS) + uint32_t(ValidPage * (PAGE_SIZE)),
+ Address = PageStartAddress + PAGE_SIZE - 2;
/* Check each active page address starting from end */
- while (Address > (PageStartAddress + 2)) {
+ while (Address > PageStartAddress + 2) {
/* Get the current location content to be compared with virtual address */
- AddressValue = (*(__IO uint16_t*)Address);
+ uint16_t AddressValue = (*(__IO uint16_t*)Address);
/* Compare the read address with the virtual address */
if (AddressValue == VirtAddress) {
@@ -353,16 +330,17 @@ uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data) {
* EEPROM formating
*/
static HAL_StatusTypeDef EE_Format(void) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint32_t SectorError = 0;
FLASH_EraseInitTypeDef pEraseInit;
-
pEraseInit.TypeErase = FLASH_TYPEERASE_SECTORS;
pEraseInit.Sector = PAGE0_ID;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
+
+ HAL_StatusTypeDef FlashStatus; // = HAL_OK
+
/* Erase Page0 */
if (!EE_VerifyPageFullyErased(PAGE0_BASE_ADDRESS)) {
+ uint32_t SectorError;
FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
@@ -375,9 +353,9 @@ static HAL_StatusTypeDef EE_Format(void) {
pEraseInit.Sector = PAGE1_ID;
/* Erase Page1 */
if (!EE_VerifyPageFullyErased(PAGE1_BASE_ADDRESS)) {
- FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
- /* If erase operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
+ /* As the last operation, just return the result code */
+ uint32_t SectorError;
+ return HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
}
return HAL_OK;
@@ -393,26 +371,20 @@ static HAL_StatusTypeDef EE_Format(void) {
* of no valid page was found
*/
static uint16_t EE_FindValidPage(uint8_t Operation) {
- uint16_t PageStatus0 = 6, PageStatus1 = 6;
-
- /* Get Page0 actual status */
- PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS);
-
- /* Get Page1 actual status */
- PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
+ /* Get Page0 and Page1 actual status */
+ uint16_t PageStatus0 = (*(__IO uint16_t*)PAGE0_BASE_ADDRESS),
+ PageStatus1 = (*(__IO uint16_t*)PAGE1_BASE_ADDRESS);
/* Write or read operation */
switch (Operation) {
case WRITE_IN_VALID_PAGE: /* ---- Write operation ---- */
if (PageStatus1 == VALID_PAGE) {
/* Page0 receiving data */
- if (PageStatus0 == RECEIVE_DATA) return PAGE0; /* Page0 valid */
- else return PAGE1; /* Page1 valid */
+ return (PageStatus0 == RECEIVE_DATA) ? PAGE0 : PAGE1;
}
else if (PageStatus0 == VALID_PAGE) {
/* Page1 receiving data */
- if (PageStatus1 == RECEIVE_DATA) return PAGE1; /* Page1 valid */
- else return PAGE0; /* Page0 valid */
+ return (PageStatus1 == RECEIVE_DATA) ? PAGE1 : PAGE0;
}
else
return NO_VALID_PAGE; /* No valid Page */
@@ -441,34 +413,26 @@ static uint16_t EE_FindValidPage(uint8_t Operation) {
* - Flash error code: on write Flash error
*/
static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Data) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint16_t ValidPage = PAGE0;
- uint32_t Address = EEPROM_START_ADDRESS, PageEndAddress = EEPROM_START_ADDRESS+PAGE_SIZE;
-
/* Get valid Page for write operation */
- ValidPage = EE_FindValidPage(WRITE_IN_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(WRITE_IN_VALID_PAGE);
/* Check if there is no valid page */
if (ValidPage == NO_VALID_PAGE) return NO_VALID_PAGE;
- /* Get the valid Page start Address */
- Address = (uint32_t)(EEPROM_START_ADDRESS + (uint32_t)(ValidPage * PAGE_SIZE));
-
- /* Get the valid Page end Address */
- PageEndAddress = (uint32_t)((EEPROM_START_ADDRESS - 1) + (uint32_t)((ValidPage + 1) * PAGE_SIZE));
+ /* Get the valid Page start and end Addresses */
+ uint32_t Address = uint32_t(EEPROM_START_ADDRESS) + uint32_t(ValidPage * (PAGE_SIZE)),
+ PageEndAddress = Address + PAGE_SIZE - 1;
/* Check each active page address starting from begining */
while (Address < PageEndAddress) {
/* Verify if Address and Address+2 contents are 0xFFFFFFFF */
if ((*(__IO uint32_t*)Address) == 0xFFFFFFFF) {
/* Set variable data */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address, Data);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address, Data);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
- /* Set variable virtual address */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address + 2, VirtAddress);
- /* Return program operation status */
- return FlashStatus;
+ /* Set variable virtual address, return status */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address + 2, VirtAddress);
}
else /* Next address location */
Address += 4;
@@ -490,16 +454,10 @@ static uint16_t EE_VerifyPageFullWriteVariable(uint16_t VirtAddress, uint16_t Da
* - Flash error code: on write Flash error
*/
static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
- HAL_StatusTypeDef FlashStatus = HAL_OK;
- uint32_t NewPageAddress = EEPROM_START_ADDRESS;
- uint16_t OldPageId=0;
- uint16_t ValidPage = PAGE0, VarIdx = 0;
- uint16_t EepromStatus = 0, ReadStatus = 0;
- uint32_t SectorError = 0;
- FLASH_EraseInitTypeDef pEraseInit;
-
/* Get active Page for read operation */
- ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint16_t ValidPage = EE_FindValidPage(READ_FROM_VALID_PAGE);
+ uint32_t NewPageAddress = EEPROM_START_ADDRESS;
+ uint16_t OldPageId = 0;
if (ValidPage == PAGE1) { /* Page1 valid */
/* New page address where variable will be moved to */
@@ -517,20 +475,20 @@ static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
return NO_VALID_PAGE; /* No valid Page */
/* Set the new Page status to RECEIVE_DATA status */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, RECEIVE_DATA);
+ HAL_StatusTypeDef FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, RECEIVE_DATA);
/* If program operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
/* Write the variable passed as parameter in the new active page */
- EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
+ uint16_t EepromStatus = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
/* If program operation was failed, a Flash error code is returned */
if (EepromStatus != HAL_OK) return EepromStatus;
/* Transfer process: transfer variables from old to the new active page */
- for (VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
+ for (uint16_t VarIdx = 0; VarIdx < NB_OF_VAR; VarIdx++) {
if (VirtAddVarTab[VarIdx] != VirtAddress) { /* Check each variable except the one passed as parameter */
/* Read the other last variable updates */
- ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
+ uint16_t ReadStatus = EE_ReadVariable(VirtAddVarTab[VarIdx], &DataVar);
/* In case variable corresponding to the virtual address was found */
if (ReadStatus != 0x1) {
/* Transfer the variable to the new active page */
@@ -541,23 +499,21 @@ static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
}
}
+ FLASH_EraseInitTypeDef pEraseInit;
pEraseInit.TypeErase = TYPEERASE_SECTORS;
pEraseInit.Sector = OldPageId;
pEraseInit.NbSectors = 1;
pEraseInit.VoltageRange = VOLTAGE_RANGE;
/* Erase the old Page: Set old Page status to ERASED status */
+ uint32_t SectorError;
FlashStatus = HAL_FLASHEx_Erase(&pEraseInit, &SectorError);
/* If erase operation was failed, a Flash error code is returned */
if (FlashStatus != HAL_OK) return FlashStatus;
/* Set new Page status to VALID_PAGE status */
- FlashStatus = HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, VALID_PAGE);
- /* If program operation was failed, a Flash error code is returned */
- if (FlashStatus != HAL_OK) return FlashStatus;
-
- /* Return last operation flash status */
- return FlashStatus;
+ /* As the last operation, just return the result code */
+ return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, VALID_PAGE);
}
#endif // STM32F7
diff --git a/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.h b/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.h
index 392e44d3d..f9afd338d 100644
--- a/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.h
+++ b/Marlin/src/HAL/HAL_STM32F7/EEPROM_Emul/eeprom_emul.h
@@ -53,56 +53,54 @@
/* Exported constants --------------------------------------------------------*/
/* EEPROM emulation firmware error codes */
-#define EE_OK (uint32_t)HAL_OK
-#define EE_ERROR (uint32_t)HAL_ERROR
-#define EE_BUSY (uint32_t)HAL_BUSY
-#define EE_TIMEOUT (uint32_t)HAL_TIMEOUT
+#define EE_OK uint32_t(HAL_OK)
+#define EE_ERROR uint32_t(HAL_ERROR)
+#define EE_BUSY uint32_t(HAL_BUSY)
+#define EE_TIMEOUT uint32_t(HAL_TIMEOUT)
/* Define the size of the sectors to be used */
-#define PAGE_SIZE (uint32_t)0x4000 /* Page size = 16KByte */
+#define PAGE_SIZE uint32_t(0x4000) /* Page size = 16KByte */
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
be done by word */
-#define VOLTAGE_RANGE (uint8_t)VOLTAGE_RANGE_3
+#define VOLTAGE_RANGE uint8_t(VOLTAGE_RANGE_3)
/* EEPROM start address in Flash */
-#define EEPROM_START_ADDRESS ((uint32_t)0x08100000) /* EEPROM emulation start address:
- from sector2 : after 16KByte of used
- Flash memory */
+#define EEPROM_START_ADDRESS uint32_t(0x08100000) /* EEPROM emulation start address:
+ from sector2 : after 16KByte of used
+ Flash memory */
/* Pages 0 and 1 base and end addresses */
-#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x0000))
-#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))
-#define PAGE0_ID FLASH_SECTOR_1
+#define PAGE0_BASE_ADDRESS uint32_t(EEPROM_START_ADDRESS + 0x0000)
+#define PAGE0_END_ADDRESS uint32_t(EEPROM_START_ADDRESS + PAGE_SIZE - 1)
+#define PAGE0_ID FLASH_SECTOR_1
-#define PAGE1_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x4000))
-#define PAGE1_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (2 * PAGE_SIZE - 1)))
-#define PAGE1_ID FLASH_SECTOR_2
+#define PAGE1_BASE_ADDRESS uint32_t(EEPROM_START_ADDRESS + 0x4000)
+#define PAGE1_END_ADDRESS uint32_t(EEPROM_START_ADDRESS + 2 * (PAGE_SIZE) - 1)
+#define PAGE1_ID FLASH_SECTOR_2
/* Used Flash pages for EEPROM emulation */
-#define PAGE0 ((uint16_t)0x0000)
-#define PAGE1 ((uint16_t)0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
+#define PAGE0 uint16_t(0x0000)
+#define PAGE1 uint16_t(0x0001) /* Page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
/* No valid page define */
-#define NO_VALID_PAGE ((uint16_t)0x00AB)
+#define NO_VALID_PAGE uint16_t(0x00AB)
/* Page status definitions */
-#define ERASED ((uint16_t)0xFFFF) /* Page is empty */
-#define RECEIVE_DATA ((uint16_t)0xEEEE) /* Page is marked to receive data */
-#define VALID_PAGE ((uint16_t)0x0000) /* Page containing valid data */
+#define ERASED uint16_t(0xFFFF) /* Page is empty */
+#define RECEIVE_DATA uint16_t(0xEEEE) /* Page is marked to receive data */
+#define VALID_PAGE uint16_t(0x0000) /* Page containing valid data */
/* Valid pages in read and write defines */
-#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
-#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
+#define READ_FROM_VALID_PAGE uint8_t(0x00)
+#define WRITE_IN_VALID_PAGE uint8_t(0x01)
/* Page full define */
-#define PAGE_FULL ((uint8_t)0x80)
+#define PAGE_FULL uint8_t(0x80)
/* Variables' number */
-#define NB_OF_VAR ((uint16_t)4096)
+#define NB_OF_VAR uint16_t(4096)
-/* Exported types ------------------------------------------------------------*/
-/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
uint16_t EE_Initialize(void);
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
diff --git a/Marlin/src/HAL/HAL_STM32F7/EmulatedEeprom.cpp b/Marlin/src/HAL/HAL_STM32F7/EmulatedEeprom.cpp
index 2773d9c21..a0e4af9f2 100644
--- a/Marlin/src/HAL/HAL_STM32F7/EmulatedEeprom.cpp
+++ b/Marlin/src/HAL/HAL_STM32F7/EmulatedEeprom.cpp
@@ -20,7 +20,7 @@
#ifdef STM32F7
/**
- * Description: functions for I2C connected external EEPROM.
+ * Description: Functions for a Flash emulated EEPROM
* Not platform dependent.
*/
@@ -67,34 +67,32 @@ void eeprom_init() {
}
void eeprom_write_byte(uint8_t *pos, unsigned char value) {
- uint16_t eeprom_address = (unsigned) pos;
+ uint16_t eeprom_address = unsigned(pos);
eeprom_init();
HAL_FLASH_Unlock();
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
- if (EE_WriteVariable(eeprom_address, (uint16_t) value) != EE_OK)
- for (;;) HAL_Delay(1); // Spin forever until watchdog reset
+ if (EE_WriteVariable(eeprom_address, uint16_t(value)) != EE_OK)
+ for (;;) HAL_Delay(1); // Spin forever until watchdog reset
HAL_FLASH_Lock();
}
uint8_t eeprom_read_byte(uint8_t *pos) {
- uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned)pos;
-
eeprom_init();
- if (EE_ReadVariable(eeprom_address, &data) != EE_OK) {
- return (unsigned char)data;
- }
- return (unsigned char)data;
+ uint16_t data = 0xFF;
+ uint16_t eeprom_address = unsigned(pos);
+ (void)EE_ReadVariable(eeprom_address, &data); // Data unchanged on error
+
+ return uint8_t(data);
}
void eeprom_read_block(void *__dst, const void *__src, size_t __n) {
uint16_t data = 0xFF;
- uint16_t eeprom_address = (unsigned) __src;
+ uint16_t eeprom_address = unsigned(__src);
eeprom_init();
diff --git a/Marlin/src/HAL/shared/I2cEeprom.cpp b/Marlin/src/HAL/shared/I2cEeprom.cpp
index c46ea8dff..f5e470541 100644
--- a/Marlin/src/HAL/shared/I2cEeprom.cpp
+++ b/Marlin/src/HAL/shared/I2cEeprom.cpp
@@ -95,7 +95,6 @@ void eeprom_update_block(const void *pos, void* eeprom_address, size_t n) {
}
}
-
uint8_t eeprom_read_byte(uint8_t *pos) {
unsigned eeprom_address = (unsigned)pos;
@@ -109,7 +108,7 @@ uint8_t eeprom_read_byte(uint8_t *pos) {
return Wire.available() ? Wire.read() : 0xFF;
}
-// maybe let's not read more than 30 or 32 bytes at a time!
+// Don't read more than 30..32 bytes at a time!
void eeprom_read_block(void* pos, const void* eeprom_address, size_t n) {
eeprom_init();