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authoryiancar <yiangosyiangou@cytanet.com.cy>2019-01-07 01:22:19 +0000
committerMechMerlin <30334081+mechmerlin@users.noreply.github.com>2019-01-06 17:22:19 -0800
commit2bfac351edebc6e141d3291448512b0e228e5c47 (patch)
treedd8f9ed31f1a3ddabe59f26a9fdfb85b1570d0ae /tmk_core/common/chibios
parent2c0bc5ed6be737e98377fa2299102f6737bbea72 (diff)
Final HS60v2 changes. (#4790)
* initial commit, this now mostly works - RGB controls work - Dynamic keymap still broken due to eeprom - Via works * STM32 eeprom update - Update EEPROM emulation library to handle 8bit data like AVR. - This library also allows for multiple page pairs resulting in greater EEPROM size flexibility * hs60 changes * HS60 hhkb added * Update keyboards/hs60/v2/config.h Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
Diffstat (limited to 'tmk_core/common/chibios')
-rwxr-xr-xtmk_core/common/chibios/eeprom_stm32.c710
-rwxr-xr-xtmk_core/common/chibios/eeprom_stm32.h68
-rwxr-xr-xtmk_core/common/chibios/flash_stm32.c15
-rwxr-xr-xtmk_core/common/chibios/flash_stm32.h1
4 files changed, 169 insertions, 625 deletions
diff --git a/tmk_core/common/chibios/eeprom_stm32.c b/tmk_core/common/chibios/eeprom_stm32.c
index a869985501..a15430d676 100755
--- a/tmk_core/common/chibios/eeprom_stm32.c
+++ b/tmk_core/common/chibios/eeprom_stm32.c
@@ -10,664 +10,206 @@
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
- * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
- * https://github.com/leaflabs/libmaple
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
*
* Modifications for QMK and STM32F303 by Yiancar
*/
+#include <stdio.h>
+#include <string.h>
#include "eeprom_stm32.h"
+/*****************************************************************************
+ * Allows to use the internal flash to store non volatile data. To initialize
+ * the functionality use the EEPROM_Init() function. Be sure that by reprogramming
+ * of the controller just affected pages will be deleted. In other case the non
+ * volatile data will be lost.
+******************************************************************************/
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Functions -----------------------------------------------------------------*/
+
+uint8_t DataBuf[FEE_PAGE_SIZE];
+/*****************************************************************************
+* Delete Flash Space used for user Data, deletes the whole space between
+* RW_PAGE_BASE_ADDRESS and the last uC Flash Page
+******************************************************************************/
+uint16_t EEPROM_Init(void) {
+ // unlock flash
+ FLASH_Unlock();
- FLASH_Status EE_ErasePage(uint32_t);
-
- uint16_t EE_CheckPage(uint32_t, uint16_t);
- uint16_t EE_CheckErasePage(uint32_t, uint16_t);
- uint16_t EE_Format(void);
- uint32_t EE_FindValidPage(void);
- uint16_t EE_GetVariablesCount(uint32_t, uint16_t);
- uint16_t EE_PageTransfer(uint32_t, uint32_t, uint16_t);
- uint16_t EE_VerifyPageFullWriteVariable(uint16_t, uint16_t);
-
- uint32_t PageBase0 = EEPROM_PAGE0_BASE;
- uint32_t PageBase1 = EEPROM_PAGE1_BASE;
- uint32_t PageSize = EEPROM_PAGE_SIZE;
- uint16_t Status = EEPROM_NOT_INIT;
-
-// See http://www.st.com/web/en/resource/technical/document/application_note/CD00165693.pdf
-
-/**
- * @brief Check page for blank
- * @param page base address
- * @retval Success or error
- * EEPROM_BAD_FLASH: page not empty after erase
- * EEPROM_OK: page blank
- */
-uint16_t EE_CheckPage(uint32_t pageBase, uint16_t status)
-{
- uint32_t pageEnd = pageBase + (uint32_t)PageSize;
-
- // Page Status not EEPROM_ERASED and not a "state"
- if ((*(__IO uint16_t*)pageBase) != EEPROM_ERASED && (*(__IO uint16_t*)pageBase) != status)
- return EEPROM_BAD_FLASH;
- for(pageBase += 4; pageBase < pageEnd; pageBase += 4)
- if ((*(__IO uint32_t*)pageBase) != 0xFFFFFFFF) // Verify if slot is empty
- return EEPROM_BAD_FLASH;
- return EEPROM_OK;
-}
-
-/**
- * @brief Erase page with increment erase counter (page + 2)
- * @param page base address
- * @retval Success or error
- * FLASH_COMPLETE: success erase
- * - Flash error code: on write Flash error
- */
-FLASH_Status EE_ErasePage(uint32_t pageBase)
-{
- FLASH_Status FlashStatus;
- uint16_t data = (*(__IO uint16_t*)(pageBase));
- if ((data == EEPROM_ERASED) || (data == EEPROM_VALID_PAGE) || (data == EEPROM_RECEIVE_DATA))
- data = (*(__IO uint16_t*)(pageBase + 2)) + 1;
- else
- data = 0;
-
- FlashStatus = FLASH_ErasePage(pageBase);
- if (FlashStatus == FLASH_COMPLETE)
- FlashStatus = FLASH_ProgramHalfWord(pageBase + 2, data);
-
- return FlashStatus;
-}
+ // Clear Flags
+ //FLASH_ClearFlag(FLASH_SR_EOP|FLASH_SR_PGERR|FLASH_SR_WRPERR);
-/**
- * @brief Check page for blank and erase it
- * @param page base address
- * @retval Success or error
- * - Flash error code: on write Flash error
- * - EEPROM_BAD_FLASH: page not empty after erase
- * - EEPROM_OK: page blank
- */
-uint16_t EE_CheckErasePage(uint32_t pageBase, uint16_t status)
-{
- uint16_t FlashStatus;
- if (EE_CheckPage(pageBase, status) != EEPROM_OK)
- {
- FlashStatus = EE_ErasePage(pageBase);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
- return EE_CheckPage(pageBase, status);
- }
- return EEPROM_OK;
+ return FEE_DENSITY_BYTES;
}
+/*****************************************************************************
+* Erase the whole reserved Flash Space used for user Data
+******************************************************************************/
+void EEPROM_Erase (void) {
-/**
- * @brief Find valid Page for write or read operation
- * @param Page0: Page0 base address
- * Page1: Page1 base address
- * @retval Valid page address (PAGE0 or PAGE1) or NULL in case of no valid page was found
- */
-uint32_t EE_FindValidPage(void)
-{
- uint16_t status0 = (*(__IO uint16_t*)PageBase0); // Get Page0 actual status
- uint16_t status1 = (*(__IO uint16_t*)PageBase1); // Get Page1 actual status
-
- if (status0 == EEPROM_VALID_PAGE && status1 == EEPROM_ERASED)
- return PageBase0;
- if (status1 == EEPROM_VALID_PAGE && status0 == EEPROM_ERASED)
- return PageBase1;
-
- return 0;
-}
+ int page_num = 0;
-/**
- * @brief Calculate unique variables in EEPROM
- * @param start: address of first slot to check (page + 4)
- * @param end: page end address
- * @param address: 16 bit virtual address of the variable to excluse (or 0XFFFF)
- * @retval count of variables
- */
-uint16_t EE_GetVariablesCount(uint32_t pageBase, uint16_t skipAddress)
-{
- uint16_t varAddress, nextAddress;
- uint32_t idx;
- uint32_t pageEnd = pageBase + (uint32_t)PageSize;
- uint16_t count = 0;
-
- for (pageBase += 6; pageBase < pageEnd; pageBase += 4)
- {
- varAddress = (*(__IO uint16_t*)pageBase);
- if (varAddress == 0xFFFF || varAddress == skipAddress)
- continue;
-
- count++;
- for(idx = pageBase + 4; idx < pageEnd; idx += 4)
- {
- nextAddress = (*(__IO uint16_t*)idx);
- if (nextAddress == varAddress)
- {
- count--;
- break;
- }
- }
- }
- return count;
+ // delete all pages from specified start page to the last page
+ do {
+ FLASH_ErasePage(FEE_PAGE_BASE_ADDRESS + (page_num * FEE_PAGE_SIZE));
+ page_num++;
+ } while (page_num < FEE_DENSITY_PAGES);
}
+/*****************************************************************************
+* Writes once data byte to flash on specified address. If a byte is already
+* written, the whole page must be copied to a buffer, the byte changed and
+* the manipulated buffer written after PageErase.
+*******************************************************************************/
+uint16_t EEPROM_WriteDataByte (uint16_t Address, uint8_t DataByte) {
-/**
- * @brief Transfers last updated variables data from the full Page to an empty one.
- * @param newPage: new page base address
- * @param oldPage: old page base address
- * @param SkipAddress: 16 bit virtual address of the variable (or 0xFFFF)
- * @retval Success or error status:
- * - FLASH_COMPLETE: on success
- * - EEPROM_OUT_SIZE: if valid new page is full
- * - Flash error code: on write Flash error
- */
-uint16_t EE_PageTransfer(uint32_t newPage, uint32_t oldPage, uint16_t SkipAddress)
-{
- uint32_t oldEnd, newEnd;
- uint32_t oldIdx, newIdx, idx;
- uint16_t address, data, found;
- FLASH_Status FlashStatus;
-
- // Transfer process: transfer variables from old to the new active page
- newEnd = newPage + ((uint32_t)PageSize);
-
- // Find first free element in new page
- for (newIdx = newPage + 4; newIdx < newEnd; newIdx += 4)
- if ((*(__IO uint32_t*)newIdx) == 0xFFFFFFFF) // Verify if element
- break; // contents are 0xFFFFFFFF
- if (newIdx >= newEnd)
- return EEPROM_OUT_SIZE;
-
- oldEnd = oldPage + 4;
- oldIdx = oldPage + (uint32_t)(PageSize - 2);
-
- for (; oldIdx > oldEnd; oldIdx -= 4)
- {
- address = *(__IO uint16_t*)oldIdx;
- if (address == 0xFFFF || address == SkipAddress)
- continue; // it's means that power off after write data
-
- found = 0;
- for (idx = newPage + 6; idx < newIdx; idx += 4)
- if ((*(__IO uint16_t*)(idx)) == address)
- {
- found = 1;
- break;
- }
-
- if (found)
- continue;
-
- if (newIdx < newEnd)
- {
- data = (*(__IO uint16_t*)(oldIdx - 2));
-
- FlashStatus = FLASH_ProgramHalfWord(newIdx, data);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
+ FLASH_Status FlashStatus = FLASH_COMPLETE;
- FlashStatus = FLASH_ProgramHalfWord(newIdx + 2, address);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
+ uint32_t page;
+ int i;
- newIdx += 4;
- }
- else
- return EEPROM_OUT_SIZE;
+ // exit if desired address is above the limit (e.G. under 2048 Bytes for 4 pages)
+ if (Address > FEE_DENSITY_BYTES) {
+ return 0;
}
- // Erase the old Page: Set old Page status to EEPROM_EEPROM_ERASED status
- data = EE_CheckErasePage(oldPage, EEPROM_ERASED);
- if (data != EEPROM_OK)
- return data;
+ // calculate which page is affected (Pagenum1/Pagenum2...PagenumN)
+ page = (FEE_PAGE_BASE_ADDRESS + FEE_ADDR_OFFSET(Address)) & 0x00000FFF;
- // Set new Page status
- FlashStatus = FLASH_ProgramHalfWord(newPage, EEPROM_VALID_PAGE);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
+ if (page % FEE_PAGE_SIZE) page = page + FEE_PAGE_SIZE;
+ page = (page / FEE_PAGE_SIZE) - 1;
- return EEPROM_OK;
-}
+ // if current data is 0xFF, the byte is empty, just overwrite with the new one
+ if ((*(__IO uint16_t*)(FEE_PAGE_BASE_ADDRESS + FEE_ADDR_OFFSET(Address))) == FEE_EMPTY_WORD) {
-/**
- * @brief Verify if active page is full and Writes variable in EEPROM.
- * @param Address: 16 bit virtual address of the variable
- * @param Data: 16 bit data to be written as variable value
- * @retval Success or error status:
- * - FLASH_COMPLETE: on success
- * - EEPROM_PAGE_FULL: if valid page is full (need page transfer)
- * - EEPROM_NO_VALID_PAGE: if no valid page was found
- * - EEPROM_OUT_SIZE: if EEPROM size exceeded
- * - Flash error code: on write Flash error
- */
-uint16_t EE_VerifyPageFullWriteVariable(uint16_t Address, uint16_t Data)
-{
- FLASH_Status FlashStatus;
- uint32_t idx, pageBase, pageEnd, newPage;
- uint16_t count;
-
- // Get valid Page for write operation
- pageBase = EE_FindValidPage();
- if (pageBase == 0)
- return EEPROM_NO_VALID_PAGE;
-
- // Get the valid Page end Address
- pageEnd = pageBase + PageSize; // Set end of page
-
- for (idx = pageEnd - 2; idx > pageBase; idx -= 4)
- {
- if ((*(__IO uint16_t*)idx) == Address) // Find last value for address
- {
- count = (*(__IO uint16_t*)(idx - 2)); // Read last data
- if (count == Data)
- return EEPROM_OK;
- if (count == 0xFFFF)
- {
- FlashStatus = FLASH_ProgramHalfWord(idx - 2, Data); // Set variable data
- if (FlashStatus == FLASH_COMPLETE)
- return EEPROM_OK;
- }
- break;
- }
+ FlashStatus = FLASH_ProgramHalfWord(FEE_PAGE_BASE_ADDRESS + FEE_ADDR_OFFSET(Address), (uint16_t)(0x00FF & DataByte));
}
+ else {
- // Check each active page address starting from begining
- for (idx = pageBase + 4; idx < pageEnd; idx += 4)
- if ((*(__IO uint32_t*)idx) == 0xFFFFFFFF) // Verify if element
- { // contents are 0xFFFFFFFF
- FlashStatus = FLASH_ProgramHalfWord(idx, Data); // Set variable data
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
- FlashStatus = FLASH_ProgramHalfWord(idx + 2, Address); // Set variable virtual address
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
- return EEPROM_OK;
- }
-
- // Empty slot not found, need page transfer
- // Calculate unique variables in page
- count = EE_GetVariablesCount(pageBase, Address) + 1;
- if (count >= (PageSize / 4 - 1))
- return EEPROM_OUT_SIZE;
-
- if (pageBase == PageBase1)
- newPage = PageBase0; // New page address where variable will be moved to
- else
- newPage = PageBase1;
-
- // Set the new Page status to RECEIVE_DATA status
- FlashStatus = FLASH_ProgramHalfWord(newPage, EEPROM_RECEIVE_DATA);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
-
- // Write the variable passed as parameter in the new active page
- FlashStatus = FLASH_ProgramHalfWord(newPage + 4, Data);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
-
- FlashStatus = FLASH_ProgramHalfWord(newPage + 6, Address);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
-
- return EE_PageTransfer(newPage, pageBase, Address);
-}
-
-/*EEPROMClass::EEPROMClass(void)
-{
- PageBase0 = EEPROM_PAGE0_BASE;
- PageBase1 = EEPROM_PAGE1_BASE;
- PageSize = EEPROM_PAGE_SIZE;
- Status = EEPROM_NOT_INIT;
-}*/
-/*
-uint16_t EEPROM_init(uint32_t pageBase0, uint32_t pageBase1, uint32_t pageSize)
-{
- PageBase0 = pageBase0;
- PageBase1 = pageBase1;
- PageSize = pageSize;
- return EEPROM_init();
-}*/
+ // Copy Page to a buffer
+ memcpy(DataBuf, (uint8_t*)FEE_PAGE_BASE_ADDRESS + (page * FEE_PAGE_SIZE), FEE_PAGE_SIZE); // !!! Calculate base address for the desired page
-uint16_t EEPROM_init(void)
-{
- uint16_t status0 = 6, status1 = 6;
- FLASH_Status FlashStatus;
+ // check if new data is differ to current data, return if not, proceed if yes
+ if (DataByte == *(__IO uint8_t*)(FEE_PAGE_BASE_ADDRESS + FEE_ADDR_OFFSET(Address))) {
+ return 0;
+ }
- FLASH_Unlock();
- Status = EEPROM_NO_VALID_PAGE;
+ // manipulate desired data byte in temp data array if new byte is differ to the current
+ DataBuf[FEE_ADDR_OFFSET(Address)] = DataByte;
- status0 = (*(__IO uint16_t *)PageBase0);
- status1 = (*(__IO uint16_t *)PageBase1);
+ //Erase Page
+ FlashStatus = FLASH_ErasePage(FEE_PAGE_BASE_ADDRESS + page);
- switch (status0)
- {
-/*
- Page0 Page1
- ----- -----
- EEPROM_ERASED EEPROM_VALID_PAGE Page1 valid, Page0 erased
- EEPROM_RECEIVE_DATA Page1 need set to valid, Page0 erased
- EEPROM_ERASED make EE_Format
- any Error: EEPROM_NO_VALID_PAGE
-*/
- case EEPROM_ERASED:
- if (status1 == EEPROM_VALID_PAGE) // Page0 erased, Page1 valid
- Status = EE_CheckErasePage(PageBase0, EEPROM_ERASED);
- else if (status1 == EEPROM_RECEIVE_DATA) // Page0 erased, Page1 receive
- {
- FlashStatus = FLASH_ProgramHalfWord(PageBase1, EEPROM_VALID_PAGE);
- if (FlashStatus != FLASH_COMPLETE)
- Status = FlashStatus;
- else
- Status = EE_CheckErasePage(PageBase0, EEPROM_ERASED);
- }
- else if (status1 == EEPROM_ERASED) // Both in erased state so format EEPROM
- Status = EEPROM_format();
- break;
-/*
- Page0 Page1
- ----- -----
- EEPROM_RECEIVE_DATA EEPROM_VALID_PAGE Transfer Page1 to Page0
- EEPROM_ERASED Page0 need set to valid, Page1 erased
- any EEPROM_NO_VALID_PAGE
-*/
- case EEPROM_RECEIVE_DATA:
- if (status1 == EEPROM_VALID_PAGE) // Page0 receive, Page1 valid
- Status = EE_PageTransfer(PageBase0, PageBase1, 0xFFFF);
- else if (status1 == EEPROM_ERASED) // Page0 receive, Page1 erased
- {
- Status = EE_CheckErasePage(PageBase1, EEPROM_ERASED);
- if (Status == EEPROM_OK)
- {
- FlashStatus = FLASH_ProgramHalfWord(PageBase0, EEPROM_VALID_PAGE);
- if (FlashStatus != FLASH_COMPLETE)
- Status = FlashStatus;
- else
- Status = EEPROM_OK;
+ // Write new data (whole page) to flash if data has beed changed
+ for(i = 0; i < (FEE_PAGE_SIZE / 2); i++) {
+ if ((__IO uint16_t)(0xFF00 | DataBuf[FEE_ADDR_OFFSET(i)]) != 0xFFFF) {
+ FlashStatus = FLASH_ProgramHalfWord((FEE_PAGE_BASE_ADDRESS + (page * FEE_PAGE_SIZE)) + (i * 2), (uint16_t)(0xFF00 | DataBuf[FEE_ADDR_OFFSET(i)]));
}
}
- break;
-/*
- Page0 Page1
- ----- -----
- EEPROM_VALID_PAGE EEPROM_VALID_PAGE Error: EEPROM_NO_VALID_PAGE
- EEPROM_RECEIVE_DATA Transfer Page0 to Page1
- any Page0 valid, Page1 erased
-*/
- case EEPROM_VALID_PAGE:
- if (status1 == EEPROM_VALID_PAGE) // Both pages valid
- Status = EEPROM_NO_VALID_PAGE;
- else if (status1 == EEPROM_RECEIVE_DATA)
- Status = EE_PageTransfer(PageBase1, PageBase0, 0xFFFF);
- else
- Status = EE_CheckErasePage(PageBase1, EEPROM_ERASED);
- break;
-/*
- Page0 Page1
- ----- -----
- any EEPROM_VALID_PAGE Page1 valid, Page0 erased
- EEPROM_RECEIVE_DATA Page1 valid, Page0 erased
- any EEPROM_NO_VALID_PAGE
-*/
- default:
- if (status1 == EEPROM_VALID_PAGE)
- Status = EE_CheckErasePage(PageBase0, EEPROM_ERASED); // Check/Erase Page0
- else if (status1 == EEPROM_RECEIVE_DATA)
- {
- FlashStatus = FLASH_ProgramHalfWord(PageBase1, EEPROM_VALID_PAGE);
- if (FlashStatus != FLASH_COMPLETE)
- Status = FlashStatus;
- else
- Status = EE_CheckErasePage(PageBase0, EEPROM_ERASED);
- }
- break;
- }
- return Status;
-}
-
-/**
- * @brief Erases PAGE0 and PAGE1 and writes EEPROM_VALID_PAGE / 0 header to PAGE0
- * @param PAGE0 and PAGE1 base addresses
- * @retval Status of the last operation (Flash write or erase) done during EEPROM formating
- */
-uint16_t EEPROM_format(void)
-{
- uint16_t status;
- FLASH_Status FlashStatus;
- FLASH_Unlock();
-
- // Erase Page0
- status = EE_CheckErasePage(PageBase0, EEPROM_VALID_PAGE);
- if (status != EEPROM_OK)
- return status;
- if ((*(__IO uint16_t*)PageBase0) == EEPROM_ERASED)
- {
- // Set Page0 as valid page: Write VALID_PAGE at Page0 base address
- FlashStatus = FLASH_ProgramHalfWord(PageBase0, EEPROM_VALID_PAGE);
- if (FlashStatus != FLASH_COMPLETE)
- return FlashStatus;
}
- // Erase Page1
- return EE_CheckErasePage(PageBase1, EEPROM_ERASED);
-}
-
-/**
- * @brief Returns the erase counter for current page
- * @param Data: Global variable contains the read variable value
- * @retval Success or error status:
- * - EEPROM_OK: if erases counter return.
- * - EEPROM_NO_VALID_PAGE: if no valid page was found.
- */
-uint16_t EEPROM_erases(uint16_t *Erases)
-{
- uint32_t pageBase;
- if (Status != EEPROM_OK)
- if (EEPROM_init() != EEPROM_OK)
- return Status;
-
- // Get active Page for read operation
- pageBase = EE_FindValidPage();
- if (pageBase == 0)
- return EEPROM_NO_VALID_PAGE;
-
- *Erases = (*(__IO uint16_t*)pageBase+2);
- return EEPROM_OK;
-}
-
-/**
- * @brief Returns the last stored variable data, if found,
- * which correspond to the passed virtual address
- * @param Address: Variable virtual address
- * @retval Data for variable or EEPROM_DEFAULT_DATA, if any errors
- */
-/*
-uint16_t EEPROM_read (uint16_t Address)
-{
- uint16_t data;
- EEPROM_read(Address, &data);
- return data;
-}*/
-
-/**
- * @brief Returns the last stored variable data, if found,
- * which correspond to the passed virtual address
- * @param Address: Variable virtual address
- * @param Data: Pointer to data variable
- * @retval Success or error status:
- * - EEPROM_OK: if variable was found
- * - EEPROM_BAD_ADDRESS: if the variable was not found
- * - EEPROM_NO_VALID_PAGE: if no valid page was found.
- */
-uint16_t EEPROM_read(uint16_t Address, uint16_t *Data)
-{
- uint32_t pageBase, pageEnd;
-
- // Set default data (empty EEPROM)
- *Data = EEPROM_DEFAULT_DATA;
-
- if (Status == EEPROM_NOT_INIT)
- if (EEPROM_init() != EEPROM_OK)
- return Status;
-
- // Get active Page for read operation
- pageBase = EE_FindValidPage();
- if (pageBase == 0)
- return EEPROM_NO_VALID_PAGE;
-
- // Get the valid Page end Address
- pageEnd = pageBase + ((uint32_t)(PageSize - 2));
-
- // Check each active page address starting from end
- for (pageBase += 6; pageEnd >= pageBase; pageEnd -= 4)
- if ((*(__IO uint16_t*)pageEnd) == Address) // Compare the read address with the virtual address
- {
- *Data = (*(__IO uint16_t*)(pageEnd - 2)); // Get content of Address-2 which is variable value
- return EEPROM_OK;
- }
-
- // Return ReadStatus value: (0: variable exist, 1: variable doesn't exist)
- return EEPROM_BAD_ADDRESS;
-}
-
-/**
- * @brief Writes/upadtes variable data in EEPROM.
- * @param VirtAddress: Variable virtual address
- * @param Data: 16 bit data to be written
- * @retval Success or error status:
- * - FLASH_COMPLETE: on success
- * - EEPROM_BAD_ADDRESS: if address = 0xFFFF
- * - EEPROM_PAGE_FULL: if valid page is full
- * - EEPROM_NO_VALID_PAGE: if no valid page was found
- * - EEPROM_OUT_SIZE: if no empty EEPROM variables
- * - Flash error code: on write Flash error
- */
-uint16_t EEPROM_write(uint16_t Address, uint16_t Data)
-{
- if (Status == EEPROM_NOT_INIT)
- if (EEPROM_init() != EEPROM_OK)
- return Status;
-
- if (Address == 0xFFFF)
- return EEPROM_BAD_ADDRESS;
-
- // Write the variable virtual address and value in the EEPROM
- uint16_t status = EE_VerifyPageFullWriteVariable(Address, Data);
- return status;
-}
-
-/**
- * @brief Writes/upadtes variable data in EEPROM.
- The value is written only if differs from the one already saved at the same address.
- * @param VirtAddress: Variable virtual address
- * @param Data: 16 bit data to be written
- * @retval Success or error status:
- * - EEPROM_SAME_VALUE: If new Data matches existing EEPROM Data
- * - FLASH_COMPLETE: on success
- * - EEPROM_BAD_ADDRESS: if address = 0xFFFF
- * - EEPROM_PAGE_FULL: if valid page is full
- * - EEPROM_NO_VALID_PAGE: if no valid page was found
- * - EEPROM_OUT_SIZE: if no empty EEPROM variables
- * - Flash error code: on write Flash error
- */
-uint16_t EEPROM_update(uint16_t Address, uint16_t Data)
-{
- uint16_t temp;
- EEPROM_read(Address, &temp);
- if (temp == Data)
- return EEPROM_SAME_VALUE;
- else
- return EEPROM_write(Address, Data);
+ return FlashStatus;
}
+/*****************************************************************************
+* Read once data byte from a specified address.
+*******************************************************************************/
+uint8_t EEPROM_ReadDataByte (uint16_t Address) {
-/**
- * @brief Return number of variable
- * @retval Number of variables
- */
-uint16_t EEPROM_count(uint16_t *Count)
-{
- if (Status == EEPROM_NOT_INIT)
- if (EEPROM_init() != EEPROM_OK)
- return Status;
-
- // Get valid Page for write operation
- uint32_t pageBase = EE_FindValidPage();
- if (pageBase == 0)
- return EEPROM_NO_VALID_PAGE; // No valid page, return max. numbers
+ uint8_t DataByte = 0xFF;
- *Count = EE_GetVariablesCount(pageBase, 0xFFFF);
- return EEPROM_OK;
-}
+ // Get Byte from specified address
+ DataByte = (*(__IO uint8_t*)(FEE_PAGE_BASE_ADDRESS + FEE_ADDR_OFFSET(Address)));
-uint16_t EEPROM_maxcount(void)
-{
- return ((PageSize / 4)-1);
+ return DataByte;
}
-
+/*****************************************************************************
+* Wrap library in AVR style functions.
+*******************************************************************************/
uint8_t eeprom_read_byte (const uint8_t *Address)
{
const uint16_t p = (const uint32_t) Address;
- uint16_t temp;
- EEPROM_read(p, &temp);
- return (uint8_t) temp;
+ return EEPROM_ReadDataByte(p);
}
void eeprom_write_byte (uint8_t *Address, uint8_t Value)
{
uint16_t p = (uint32_t) Address;
- EEPROM_write(p, (uint16_t) Value);
+ EEPROM_WriteDataByte(p, Value);
}
void eeprom_update_byte (uint8_t *Address, uint8_t Value)
{
uint16_t p = (uint32_t) Address;
- EEPROM_update(p, (uint16_t) Value);
+ EEPROM_WriteDataByte(p, Value);
}
uint16_t eeprom_read_word (const uint16_t *Address)
{
const uint16_t p = (const uint32_t) Address;
- uint16_t temp;
- EEPROM_read(p, &temp);
- return temp;
+ return EEPROM_ReadDataByte(p) | (EEPROM_ReadDataByte(p+1) << 8);
}
void eeprom_write_word (uint16_t *Address, uint16_t Value)
{
uint16_t p = (uint32_t) Address;
- EEPROM_write(p, Value);
+ EEPROM_WriteDataByte(p, (uint8_t) Value);
+ EEPROM_WriteDataByte(p + 1, (uint8_t) (Value >> 8));
}
void eeprom_update_word (uint16_t *Address, uint16_t Value)
{
uint16_t p = (uint32_t) Address;
- EEPROM_update(p, Value);
+ EEPROM_WriteDataByte(p, (uint8_t) Value);
+ EEPROM_WriteDataByte(p + 1, (uint8_t) (Value >> 8));
}
uint32_t eeprom_read_dword (const uint32_t *Address)
{
const uint16_t p = (const uint32_t) Address;
- uint16_t temp1, temp2;
- EEPROM_read(p, &temp1);
- EEPROM_read(p + 1, &temp2);
- return temp1 | (temp2 << 16);
+ return EEPROM_ReadDataByte(p) | (EEPROM_ReadDataByte(p+1) << 8)
+ | (EEPROM_ReadDataByte(p+2) << 16) | (EEPROM_ReadDataByte(p+3) << 24);
}
void eeprom_write_dword (uint32_t *Address, uint32_t Value)
{
- uint16_t temp = (uint16_t) Value;
- uint16_t p = (uint32_t) Address;
- EEPROM_write(p, temp);
- temp = (uint16_t) (Value >> 16);
- EEPROM_write(p + 1, temp);
+ uint16_t p = (const uint32_t) Address;
+ EEPROM_WriteDataByte(p, (uint8_t) Value);
+ EEPROM_WriteDataByte(p+1, (uint8_t) (Value >> 8));
+ EEPROM_WriteDataByte(p+2, (uint8_t) (Value >> 16));
+ EEPROM_WriteDataByte(p+3, (uint8_t) (Value >> 24));
}
void eeprom_update_dword (uint32_t *Address, uint32_t Value)
{
- uint16_t temp = (uint16_t) Value;
- uint16_t p = (uint32_t) Address;
- EEPROM_update(p, temp);
- temp = (uint16_t) (Value >> 16);
- EEPROM_update(p + 1, temp);
+ uint16_t p = (const uint32_t) Address;
+ EEPROM_WriteDataByte(p, (uint8_t) Value);
+ EEPROM_WriteDataByte(p+1, (uint8_t) (Value >> 8));
+ EEPROM_WriteDataByte(p+2, (uint8_t) (Value >> 16));
+ EEPROM_WriteDataByte(p+3, (uint8_t) (Value >> 24));
+}
+
+void eeprom_read_block(void *buf, const void *addr, uint32_t len) {
+ const uint8_t *p = (const uint8_t *)addr;
+ uint8_t *dest = (uint8_t *)buf;
+ while (len--) {
+ *dest++ = eeprom_read_byte(p++);
+ }
+}
+
+void eeprom_write_block(const void *buf, void *addr, uint32_t len) {
+ uint8_t *p = (uint8_t *)addr;
+ const uint8_t *src = (const uint8_t *)buf;
+ while (len--) {
+ eeprom_write_byte(p++, *src++);
+ }
+}
+
+void eeprom_update_block(const void *buf, void *addr, uint32_t len) {
+ uint8_t *p = (uint8_t *)addr;
+ const uint8_t *src = (const uint8_t *)buf;
+ while (len--) {
+ eeprom_write_byte(p++, *src++);
+ }
}
diff --git a/tmk_core/common/chibios/eeprom_stm32.h b/tmk_core/common/chibios/eeprom_stm32.h
index 09229530ca..892e417b7e 100755
--- a/tmk_core/common/chibios/eeprom_stm32.h
+++ b/tmk_core/common/chibios/eeprom_stm32.h
@@ -10,15 +10,17 @@
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
- * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
- * https://github.com/leaflabs/libmaple
+ * This files are free to use from http://engsta.com/stm32-flash-memory-eeprom-emulator/ by
+ * Artur F.
*
* Modifications for QMK and STM32F303 by Yiancar
+ *
+ * This library assumes 8-bit data locations. To add a new MCU, please provide the flash
+ * page size and the total flash size in Kb. The number of available pages must be a multiple
+ * of 2. Only half of the pages account for the total EEPROM size.
+ * This library also assumes that the pages are not used by the firmware.
*/
-// This file must be modified if the MCU is not defined below.
-// This library also assumes that the pages are not used by the firmware.
-
#ifndef __EEPROM_H
#define __EEPROM_H
@@ -38,9 +40,11 @@
#ifndef EEPROM_PAGE_SIZE
#if defined (MCU_STM32F103RB)
- #define EEPROM_PAGE_SIZE (uint16_t)0x400 /* Page size = 1KByte */
+ #define FEE_PAGE_SIZE (uint16_t)0x400 // Page size = 1KByte
+ #define FEE_DENSITY_PAGES 2 // How many pages are used
#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD) || defined (MCU_STM32F303CC)
- #define EEPROM_PAGE_SIZE (uint16_t)0x800 /* Page size = 2KByte */
+ #define FEE_PAGE_SIZE (uint16_t)0x800 // Page size = 2KByte
+ #define FEE_DENSITY_PAGES 4 // How many pages are used
#else
#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
#endif
@@ -48,48 +52,30 @@
#ifndef EEPROM_START_ADDRESS
#if defined (MCU_STM32F103RB)
- #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE))
+ #define FEE_MCU_FLASH_SIZE 128 // Size in Kb
#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE)
- #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE))
+ #define FEE_MCU_FLASH_SIZE 512 // Size in Kb
#elif defined (MCU_STM32F103RD)
- #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE))
+ #define FEE_MCU_FLASH_SIZE 384 // Size in Kb
#elif defined (MCU_STM32F303CC)
- #define EEPROM_START_ADDRESS ((uint32_t)(0x8000000 + 256 * 1024 - 2 * EEPROM_PAGE_SIZE))
+ #define FEE_MCU_FLASH_SIZE 256 // Size in Kb
#else
#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
#endif
#endif
-/* Pages 0 and 1 base and end addresses */
-#define EEPROM_PAGE0_BASE ((uint32_t)(EEPROM_START_ADDRESS + 0x000))
-#define EEPROM_PAGE1_BASE ((uint32_t)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE))
-
-/* Page status definitions */
-#define EEPROM_ERASED ((uint16_t)0xFFFF) /* PAGE is empty */
-#define EEPROM_RECEIVE_DATA ((uint16_t)0xEEEE) /* PAGE is marked to receive data */
-#define EEPROM_VALID_PAGE ((uint16_t)0x0000) /* PAGE containing valid data */
-
-/* Page full define */
-enum uint16_t
- {
- EEPROM_OK = ((uint16_t)0x0000),
- EEPROM_OUT_SIZE = ((uint16_t)0x0081),
- EEPROM_BAD_ADDRESS = ((uint16_t)0x0082),
- EEPROM_BAD_FLASH = ((uint16_t)0x0083),
- EEPROM_NOT_INIT = ((uint16_t)0x0084),
- EEPROM_SAME_VALUE = ((uint16_t)0x0085),
- EEPROM_NO_VALID_PAGE = ((uint16_t)0x00AB)
- };
-
-#define EEPROM_DEFAULT_DATA 0xFFFF
+// DONT CHANGE
+// Choose location for the first EEPROM Page address on the top of flash
+#define FEE_PAGE_BASE_ADDRESS ((uint32_t)(0x8000000 + FEE_MCU_FLASH_SIZE * 1024 - FEE_DENSITY_PAGES * FEE_PAGE_SIZE))
+#define FEE_DENSITY_BYTES ((FEE_PAGE_SIZE / 2) * FEE_DENSITY_PAGES - 1)
+#define FEE_LAST_PAGE_ADDRESS (FEE_PAGE_BASE_ADDRESS + (FEE_PAGE_SIZE * FEE_DENSITY_PAGES))
+#define FEE_EMPTY_WORD ((uint16_t)0xFFFF)
+#define FEE_ADDR_OFFSET(Address)(Address * 2) // 1Byte per Word will be saved to preserve Flash
- uint16_t EEPROM_init(void);
- uint16_t EEPROM_format(void);
- uint16_t EEPROM_erases(uint16_t *);
- uint16_t EEPROM_read (uint16_t address, uint16_t *data);
- uint16_t EEPROM_write(uint16_t address, uint16_t data);
- uint16_t EEPROM_update(uint16_t address, uint16_t data);
- uint16_t EEPROM_count(uint16_t *);
- uint16_t EEPROM_maxcount(void);
+// Use this function to initialize the functionality
+uint16_t EEPROM_Init(void);
+void EEPROM_Erase (void);
+uint16_t EEPROM_WriteDataByte (uint16_t Address, uint8_t DataByte);
+uint8_t EEPROM_ReadDataByte (uint16_t Address);
#endif /* __EEPROM_H */
diff --git a/tmk_core/common/chibios/flash_stm32.c b/tmk_core/common/chibios/flash_stm32.c
index 2735934844..164654a15e 100755
--- a/tmk_core/common/chibios/flash_stm32.c
+++ b/tmk_core/common/chibios/flash_stm32.c
@@ -186,3 +186,18 @@ void FLASH_Lock(void)
/* Set the Lock Bit to lock the FPEC and the FCR */
FLASH->CR |= FLASH_CR_LOCK;
}
+
+/**
+ * @brief Clears the FLASH's pending flags.
+ * @param FLASH_FLAG: specifies the FLASH flags to clear.
+ * This parameter can be any combination of the following values:
+ * @arg FLASH_FLAG_PGERR: FLASH Programming error flag flag
+ * @arg FLASH_FLAG_WRPERR: FLASH Write protected error flag
+ * @arg FLASH_FLAG_EOP: FLASH End of Programming flag
+ * @retval None
+ */
+void FLASH_ClearFlag(uint32_t FLASH_FLAG)
+{
+ /* Clear the flags */
+ FLASH->SR = FLASH_FLAG;
+}
diff --git a/tmk_core/common/chibios/flash_stm32.h b/tmk_core/common/chibios/flash_stm32.h
index cc065cbca2..3c99cc566a 100755
--- a/tmk_core/common/chibios/flash_stm32.h
+++ b/tmk_core/common/chibios/flash_stm32.h
@@ -45,6 +45,7 @@ FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data);
void FLASH_Unlock(void);
void FLASH_Lock(void);
+void FLASH_ClearFlag(uint32_t FLASH_FLAG);
#ifdef __cplusplus
}