| /* |
| * Copyright (c) 2016, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <openthread/config.h> |
| #include <openthread/types.h> |
| #include <openthread/platform/alarm.h> |
| |
| #include "hw_qspi.h" |
| #include "qspi_automode.h" |
| |
| #define FLASH_SECTOR_SIZE 0x1000 |
| #define FLASH_BUFFER_SIZE 0x2000 |
| |
| #define W25Q_READ_STATUS_REGISTER1 0x05 |
| |
| /* Erase/Write in progress */ |
| #define W25Q_STATUS1_BUSY_BIT 0 |
| #define W25Q_STATUS1_BUSY_MASK (1 << W25Q_STATUS1_BUSY_BIT) |
| |
| static uint32_t sWaitStatusTimeout; |
| |
| QSPI_SECTION static uint8_t qspi_get_erase_status(void) |
| { |
| QSPIC->QSPIC_CHCKERASE_REG = 0; |
| return HW_QSPIC_REG_GETF(ERASECTRL, ERS_STATE); |
| } |
| |
| volatile bool DisableErase = false; |
| |
| // Erase QSPI memory section as non-blocking function. Remember to check utilsFlashStatusWait before write or read!! |
| otError utilsFlashErasePage(uint32_t aAddress) |
| { |
| |
| uint32_t flash_offset = (aAddress) & ~(FLASH_SECTOR_SIZE - 1); |
| |
| if (DisableErase) |
| { |
| return OT_ERROR_NONE; |
| } |
| |
| qspi_automode_init(); |
| qspi_automode_erase_flash_sector(flash_offset); |
| |
| CACHE->CACHE_CTRL1_REG = CACHE_CACHE_CTRL1_REG_CACHE_FLUSH_Msk; |
| |
| return OT_ERROR_NONE; |
| } |
| |
| |
| uint32_t utilsFlashGetSize(void) |
| { |
| |
| return (uint32_t)FLASH_BUFFER_SIZE; |
| } |
| |
| otError utilsFlashStatusWait(uint32_t aTimeout) |
| { |
| |
| sWaitStatusTimeout = otPlatAlarmGetNow(); |
| |
| while (qspi_get_erase_status() && ((otPlatAlarmGetNow() - sWaitStatusTimeout) < aTimeout)); |
| |
| if (qspi_get_erase_status()) |
| { |
| return OT_ERROR_BUSY; |
| } |
| else |
| { |
| return OT_ERROR_NONE; |
| } |
| } |
| |
| otError utilsFlashInit(void) |
| { |
| qspi_automode_flash_power_up(); |
| |
| if (utilsFlashStatusWait(1000) == OT_ERROR_BUSY) |
| { |
| return OT_ERROR_FAILED; |
| } |
| else |
| { |
| return OT_ERROR_NONE; |
| } |
| } |
| |
| uint32_t utilsFlashWrite(uint32_t aAddress, uint8_t *aData, uint32_t aSize) |
| { |
| |
| size_t offset = 0; |
| size_t written; |
| |
| while (offset < aSize) |
| { |
| written = qspi_automode_write_flash_page(aAddress + offset, aData + offset, |
| aSize - offset); |
| offset += written; |
| } |
| |
| return offset; |
| } |
| |
| uint32_t utilsFlashRead(uint32_t aAddress, uint8_t *aData, uint32_t aSize) |
| { |
| memcpy(aData, (void *)(MEMORY_QSPIF_BASE + aAddress), aSize); |
| return aSize; |
| } |