| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #ifndef __SPIFLASH_H__ |
| #define __SPIFLASH_H__ |
| |
| #include <hal/hal_flash_int.h> |
| #include <hal/hal_spi.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct spiflash_dev { |
| struct hal_flash hal; |
| struct hal_spi_settings spi_settings; |
| int spi_num; |
| void *spi_cfg; /** Low-level MCU SPI config */ |
| int ss_pin; |
| uint16_t sector_size; |
| uint16_t page_size; |
| /* Array of supported flash chips */ |
| const struct spiflash_chip *supported_chips; |
| /* Pointer to one of the supported chips */ |
| const struct spiflash_chip *flash_chip; |
| }; |
| |
| extern struct spiflash_dev spiflash_dev; |
| |
| #define SPIFLASH_PAGE_PROGRAM 0x02 |
| #define SPIFLASH_READ 0x03 |
| #define SPIFLASH_READ_STATUS_REGISTER 0x05 |
| #define SPIFLASH_READ_STATUS_REGISTER2 0x35 |
| #define SPIFLASH_WRITE_ENABLE 0x06 |
| #define SPIFLASH_FAST_READ 0x0B |
| #define SPIFLASH_SECTOR_ERASE 0x20 |
| #define SPIFLASH_DEEP_POWER_DOWN 0xB9 |
| #define SPIFLASH_RELEASE_POWER_DOWN 0xAB |
| #define SPIFLASH_READ_MANUFACTURER_ID 0x90 |
| #define SPIFLASH_READ_JEDEC_ID 0x9F |
| |
| #define SPIFLASH_STATUS_BUSY 0x01 |
| #define SPIFLASH_STATUS_WRITE_ENABLE 0x02 |
| |
| /* |
| * Flash identification bytes from 0x9F command |
| */ |
| struct jedec_id { |
| uint8_t ji_manufacturer; |
| uint8_t ji_type; |
| uint8_t ji_capacity; |
| }; |
| struct spiflash_chip { |
| struct jedec_id fc_jedec_id; |
| void (*fc_release_power_down)(struct spiflash_dev *dev); |
| }; |
| |
| #define JEDEC_MFC_ISSI 0x9D |
| #define JEDEC_MFC_WINBOND 0xEF |
| #define JEDEC_MFC_GIGADEVICE 0xC8 |
| #define JEDEC_MFC_MACRONIX 0xC2 |
| #define JEDEC_MFC_MICRON 0x20 |
| #define JEDEC_MFC_MICROCHIP 0xBF |
| #define JEDEC_MFC_ADESTO 0x1F |
| |
| #define FLASH_CAPACITY_256KBIT 0x09 |
| #define FLASH_CAPACITY_512KBIT 0x10 |
| #define FLASH_CAPACITY_1MBIT 0x11 |
| #define FLASH_CAPACITY_2MBIT 0x12 |
| #define FLASH_CAPACITY_4MBIT 0x13 |
| #define FLASH_CAPACITY_8MBIT 0x14 |
| #define FLASH_CAPACITY_16MBIT 0x15 |
| #define FLASH_CAPACITY_32MBIT 0x16 |
| |
| int spiflash_init(const struct hal_flash *dev); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __SPIFLASH_H__ */ |
