Refine EEPROM types / flags (#17772)

Marlin/src/HAL/STM32_F4_F7/HAL.h

@@ -51,6 +51,8 @@
   #error "SERIAL_PORT cannot be 0. (Port 0 does not exist.) Please update your configuration."
 #elif SERIAL_PORT == -1
   #define MYSERIAL0 SerialUSB
+#elif SERIAL_PORT == 0
+  #define MYSERIAL0 Serial1
 #elif SERIAL_PORT == 1
   #define MYSERIAL0 SerialUART1
 #elif SERIAL_PORT == 2
@@ -74,6 +76,8 @@
     #error "SERIAL_PORT_2 must be different than SERIAL_PORT. Please update your configuration."
   #elif SERIAL_PORT_2 == -1
     #define MYSERIAL1 SerialUSB
+  #elif SERIAL_PORT_2 == 0
+    #define MYSERIAL1 Serial1
   #elif SERIAL_PORT_2 == 1
     #define MYSERIAL1 SerialUART1
   #elif SERIAL_PORT_2 == 2
@@ -103,6 +107,8 @@
     #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
   #elif DGUS_SERIAL_PORT == -1
     #define DGUS_SERIAL SerialUSB
+  #elif DGUS_SERIAL_PORT == 0
+    #define DGUS_SERIAL Serial1
   #elif DGUS_SERIAL_PORT == 1
     #define DGUS_SERIAL SerialUART1
   #elif DGUS_SERIAL_PORT == 2
@@ -206,19 +212,6 @@ static inline int freeMemory() {
 
 #pragma GCC diagnostic pop
 
-//
-// EEPROM
-//
-
-/**
- * TODO: Write all this EEPROM stuff. Can emulate EEPROM in flash as last resort.
- * Wire library should work for i2c EEPROMs.
- */
-void eeprom_write_byte(uint8_t *pos, unsigned char value);
-uint8_t eeprom_read_byte(uint8_t *pos);
-void eeprom_read_block (void *__dst, const void *__src, size_t __n);
-void eeprom_update_block (const void *__src, void *__dst, size_t __n);
-
 //
 // ADC
 //

Marlin/src/HAL/STM32_F4_F7/HAL_SPI.cpp

@@ -20,6 +20,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F7))
 
 /**
  * Software SPI functions originally from Arduino Sd2Card Library
@@ -30,8 +31,6 @@
  * Adapted to the Marlin STM32F4/7 HAL
  */
 
-#if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F7))
-
 #include "../../inc/MarlinConfig.h"
 
 #include <SPI.h>
@@ -121,7 +120,7 @@ uint8_t spiRec() {
  */
 void spiRead(uint8_t* buf, uint16_t nbyte) {
   SPI.beginTransaction(spiConfig);
-  #ifdef STM32GENERIC
+  #ifndef STM32GENERIC
     SPI.dmaTransfer(0, const_cast<uint8_t*>(buf), nbyte);
   #else
     SPI.transfer((uint8_t*)buf, nbyte);
@@ -153,7 +152,7 @@ void spiSend(uint8_t b) {
 void spiSendBlock(uint8_t token, const uint8_t* buf) {
   SPI.beginTransaction(spiConfig);
   SPI.transfer(token);
-  #ifdef STM32GENERIC
+  #ifndef STM32GENERIC
     SPI.dmaSend(const_cast<uint8_t*>(buf), 512);
   #else
     SPI.transfer((uint8_t*)buf, nullptr, 512);

Marlin/src/HAL/STM32_F4_F7/eeprom.cpp

@@ -22,13 +22,15 @@
  */
 #if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F7))
 
-#include "../../inc/MarlinConfigPre.h"
+#include "../../inc/MarlinConfig.h"
 
 #if ENABLED(EEPROM_SETTINGS)
 
+#include "../shared/eeprom_if.h"
 #include "../shared/eeprom_api.h"
 
-bool PersistentStore::access_start() { return true; }
+size_t PersistentStore::capacity()    { return E2END + 1; }
+bool PersistentStore::access_start()  { return true; }
 bool PersistentStore::access_finish() { return true; }
 
 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
@@ -62,7 +64,5 @@ bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t
   return false;
 }
 
-size_t PersistentStore::capacity() { return E2END + 1; }
-
 #endif // EEPROM_SETTINGS
 #endif // STM32GENERIC && (STM32F4 || STM32F7)

Marlin/src/HAL/STM32_F4_F7/eeprom_emul.cpp

@@ -1,6 +1,6 @@
 /**
   ******************************************************************************
-  * @file    EEPROM/EEPROM_Emulation/src/eeprom.c
+  * @file    eeprom_emul.cpp
   * @author  MCD Application Team
   * @version V1.2.6
   * @date    04-November-2016
@@ -49,6 +49,10 @@
   */
 #if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F7))
 
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(FLASH_EEPROM_EMULATION)
+
 /* Includes ------------------------------------------------------------------*/
 #include "eeprom_emul.h"
 
@@ -518,6 +522,7 @@ static uint16_t EE_PageTransfer(uint16_t VirtAddress, uint16_t Data) {
   return HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, NewPageAddress, VALID_PAGE);
 }
 
+#endif // FLASH_EEPROM_EMULATION
 #endif // STM32GENERIC && (STM32F4 || STM32F7)
 
 /**

Marlin/src/HAL/STM32_F4_F7/eeprom_if_flash.cpp

@@ -16,12 +16,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #if defined(STM32GENERIC) && (defined(STM32F4) || defined(STM32F7))
 
 /**
- * Description: Functions for a Flash emulated EEPROM
- * Not platform dependent.
+ * Arduino-style interface for Flash emulated EEPROM
  */
 
 // Include configs and pins to get all EEPROM flags
@@ -35,6 +33,7 @@
 
 #include "HAL.h"
 #include "eeprom_emul.h"
+#include "../shared/eeprom_if.h"
 
 // ------------------------
 // Local defines