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89 lines
3.8 KiB
89 lines
3.8 KiB
/*
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* This software is experimental and a work in progress.
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* Under no circumstances should these files be used in relation to any critical system(s).
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* Use of these files is at your own risk.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
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* https://github.com/leaflabs/libmaple
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*
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* Modifications for QMK and STM32F303 by Yiancar
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*/
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// This file must be modified if the MCU is not defined below.
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// This library also assumes that the pages are not used by the firmware.
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#ifndef __EEPROM_H
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#define __EEPROM_H
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#include "ch.h"
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#include "hal.h"
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#include "flash_stm32.h"
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// HACK ALERT. This definition may not match your processor
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// To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc
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#define MCU_STM32F303CC
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#ifndef EEPROM_PAGE_SIZE
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#if defined (MCU_STM32F103RB)
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#define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */
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#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC)
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#define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */
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#else
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#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
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#endif
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#endif
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#ifndef EEPROM_START_ADDRESS
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#if defined (MCU_STM32F103RB)
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#define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE)
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#define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#elif defined (MCU_STM32F103RD)
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#define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#elif defined (MCU_STM32F303CC)
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#define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 250 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#else
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#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
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#endif
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#endif
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/* Pages 0 and 1 base and end addresses */
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#define EEPROM_PAGE0_BASE ((uint32_t)(EEPROM_START_ADDRESS + 0x000))
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#define EEPROM_PAGE1_BASE ((uint32_t)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE))
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/* Page status definitions */
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#define EEPROM_ERASED ((uint16_t)0xFFFF) /* PAGE is empty */
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#define EEPROM_RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */
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#define EEPROM_VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */
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/* Page full define */
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enum uint16_t
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{
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EEPROM_OK = ((uint16_t)0x0000),
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EEPROM_OUT_SIZE = ((uint16_t)0x0081),
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EEPROM_BAD_ADDRESS = ((uint16_t)0x0082),
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EEPROM_BAD_FLASH = ((uint16_t)0x0083),
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EEPROM_NOT_INIT = ((uint16_t)0x0084),
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EEPROM_SAME_VALUE = ((uint16_t)0x0085),
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EEPROM_NO_VALID_PAGE = ((uint16_t)0x00AB)
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};
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#define EEPROM_DEFAULT_DATA 0xFFFF
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uint16_t EEPROM_init(void);
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uint16_t EEPROM_format(void);
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uint16_t EEPROM_erases(uint16_t *);
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uint16_t EEPROM_read (uint16_t address, uint16_t *data);
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uint16_t EEPROM_write(uint16_t address, uint16_t data);
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uint16_t EEPROM_update(uint16_t address, uint16_t data);
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uint16_t EEPROM_count(uint16_t *);
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uint16_t EEPROM_maxcount(void);
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#endif /* __EEPROM_H */
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