diff options
Diffstat (limited to 'tmk_core/common/chibios/flash_stm32.c')
| -rw-r--r-- | tmk_core/common/chibios/flash_stm32.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/tmk_core/common/chibios/flash_stm32.c b/tmk_core/common/chibios/flash_stm32.c deleted file mode 100644 index 6b80ff71c3..0000000000 --- a/tmk_core/common/chibios/flash_stm32.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * This software is experimental and a work in progress. - * Under no circumstances should these files be used in relation to any critical system(s). - * Use of these files is at your own risk. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, - * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR - * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * 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 - * - * Modifications for QMK and STM32F303 by Yiancar - */ - -#include <hal.h> -#include "flash_stm32.h" - -#if defined(EEPROM_EMU_STM32F103xB) -# define FLASH_SR_WRPERR FLASH_SR_WRPRTERR -#endif - -/* Delay definition */ -#define EraseTimeout ((uint32_t)0x00000FFF) -#define ProgramTimeout ((uint32_t)0x0000001F) - -#define ASSERT(exp) (void)((0)) - -/** - * @brief Inserts a time delay. - * @param None - * @retval None - */ -static void delay(void) { - __IO uint32_t i = 0; - for (i = 0xFF; i != 0; i--) { - } -} - -/** - * @brief Returns the FLASH Status. - * @param None - * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG, - * FLASH_ERROR_WRP or FLASH_COMPLETE - */ -FLASH_Status FLASH_GetStatus(void) { - if ((FLASH->SR & FLASH_SR_BSY) == FLASH_SR_BSY) return FLASH_BUSY; - - if ((FLASH->SR & FLASH_SR_PGERR) != 0) return FLASH_ERROR_PG; - - if ((FLASH->SR & FLASH_SR_WRPERR) != 0) return FLASH_ERROR_WRP; - - if ((FLASH->SR & FLASH_OBR_OPTERR) != 0) return FLASH_ERROR_OPT; - - return FLASH_COMPLETE; -} - -/** - * @brief Waits for a Flash operation to complete or a TIMEOUT to occur. - * @param Timeout: FLASH progamming Timeout - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout) { - FLASH_Status status; - - /* Check for the Flash Status */ - status = FLASH_GetStatus(); - /* Wait for a Flash operation to complete or a TIMEOUT to occur */ - while ((status == FLASH_BUSY) && (Timeout != 0x00)) { - delay(); - status = FLASH_GetStatus(); - Timeout--; - } - if (Timeout == 0) status = FLASH_TIMEOUT; - /* Return the operation status */ - return status; -} - -/** - * @brief Erases a specified FLASH page. - * @param Page_Address: The page address to be erased. - * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ErasePage(uint32_t Page_Address) { - FLASH_Status status = FLASH_COMPLETE; - /* Check the parameters */ - ASSERT(IS_FLASH_ADDRESS(Page_Address)); - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - - if (status == FLASH_COMPLETE) { - /* if the previous operation is completed, proceed to erase the page */ - FLASH->CR |= FLASH_CR_PER; - FLASH->AR = Page_Address; - FLASH->CR |= FLASH_CR_STRT; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - if (status != FLASH_TIMEOUT) { - /* if the erase operation is completed, disable the PER Bit */ - FLASH->CR &= ~FLASH_CR_PER; - } - FLASH->SR = (FLASH_SR_EOP | FLASH_SR_PGERR | FLASH_SR_WRPERR); - } - /* Return the Erase Status */ - return status; -} - -/** - * @brief Programs a half word at a specified address. - * @param Address: specifies the address to be programmed. - * @param Data: specifies the data to be programmed. - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) { - FLASH_Status status = FLASH_BAD_ADDRESS; - - if (IS_FLASH_ADDRESS(Address)) { - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - if (status == FLASH_COMPLETE) { - /* if the previous operation is completed, proceed to program the new data */ - FLASH->CR |= FLASH_CR_PG; - *(__IO uint16_t*)Address = Data; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - if (status != FLASH_TIMEOUT) { - /* if the program operation is completed, disable the PG Bit */ - FLASH->CR &= ~FLASH_CR_PG; - } - FLASH->SR = (FLASH_SR_EOP | FLASH_SR_PGERR | FLASH_SR_WRPERR); - } - } - return status; -} - -/** - * @brief Unlocks the FLASH Program Erase Controller. - * @param None - * @retval None - */ -void FLASH_Unlock(void) { - if (FLASH->CR & FLASH_CR_LOCK) { - /* Authorize the FPEC Access */ - FLASH->KEYR = FLASH_KEY1; - FLASH->KEYR = FLASH_KEY2; - } -} - -/** - * @brief Locks the FLASH Program Erase Controller. - * @param None - * @retval None - */ -void FLASH_Lock(void) { - /* Set the Lock Bit to lock the FPEC and the FCR */ - FLASH->CR |= FLASH_CR_LOCK; -} |