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/* Copyright 2018 Canaan Inc.
*
* Licensed 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 _W25QXX_H
#define _W25QXX_H
#include <stdint.h>
/* clang-format off */
#define WORK_TRANS_MODE SPI_FF_STANDARD
/* #define WORK_TRANS_MODE SPI_FF_DUAL */
/* #define WORK_TRANS_MODE SPI_FF_QUAD */
#define CHIP_SELECT 1
#define WAIT_CYCLE 8
#define FRAME_LENGTH 8
#define INSTRUCTION_LENGTH 8
#define ADDRESS_LENGTH 24
#define SPI_SLAVE_SELECT (0x01)
#define w25qxx_FLASH_PAGE_SIZE 256
#define w25qxx_FLASH_SECTOR_SIZE 4096
#define w25qxx_FLASH_PAGE_NUM_PER_SECTOR 16
#define w25qxx_FLASH_CHIP_SIZE (16777216 UL)
#define WRITE_ENABLE 0x06
#define WRITE_DISABLE 0x04
#define READ_REG1 0x05
#define READ_REG2 0x35
#define READ_REG3 0x15
#define WRITE_REG1 0x01
#define WRITE_REG2 0x31
#define WRITE_REG3 0x11
#define READ_DATA 0x03
#define FAST_READ 0x0B
#define FAST_READ_DUAL_OUTPUT 0x3B
#define FAST_READ_QUAL_OUTPUT 0x6B
#define FAST_READ_DUAL_IO 0xBB
#define FAST_READ_QUAL_IO 0xEB
#define DUAL_READ_RESET 0xFFFF
#define QUAL_READ_RESET 0xFF
#define PAGE_PROGRAM 0x02
#define QUAD_PAGE_PROGRAM 0x32
#define SECTOR_ERASE 0x20
#define BLOCK_32K_ERASE 0x52
#define BLOCK_64K_ERASE 0xD8
#define CHIP_ERASE 0x60
#define READ_ID 0x90
#define ENABLE_QPI 0x38
#define EXIT_QPI 0xFF
#define ENABLE_RESET 0x66
#define RESET_DEVICE 0x99
#define REG1_BUSY_MASK 0x01
#define REG2_QUAL_MASK 0x02
#define LETOBE(x) ((x >> 24) | ((x & 0x00FF0000) >> 8) | ((x & 0x0000FF00) << 8) | (x << 24))
/* clang-format on */
/**
* @brief w25qxx operating status enumerate
*/
enum w25qxx_status_t
{
W25QXX_OK = 0,
W25QXX_BUSY,
W25QXX_ERROR,
};
enum w25qxx_status_t w25qxx_init(uintptr_t spi_in);
enum w25qxx_status_t w25qxx_write_data(uint32_t addr, uint8_t* data_buf, uint32_t length);
enum w25qxx_status_t w25qxx_read_data(uint32_t addr, uint8_t* data_buf, uint32_t length);
enum w25qxx_status_t w25qxx_sector_erase(uint32_t addr);
#endif
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