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76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
//
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// Grimoire
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// Copyright 2025 Wenting Zhang
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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#pragma once
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#define SPIF_FLASH_SIZE 0x400000 // 4MB
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#define SPIF_SECTOR_SIZE 0x10000 // 64KB
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#define SPIF_SUBSECTOR_SIZE 0x1000 // 4KB
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#define SPIF_PAGE_SIZE 0x100 // 256B
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#define SPIF_DUMMY_CYCLES_READ 0
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#define SPIF_DUMMY_CYCLES_READ_QUAD 6
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#define SPIF_BULK_ERASE_TIMEOUT 25000
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#define SPIF_SECTOR_ERASE_TIMEOUT 3000
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#define SPIF_SUBSECTOR_ERASE_TIMEOUT 800
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// Registers
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#define SPIF_SR_WIP ((uint8_t)0x01)
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#define SPIF_SR_WREN ((uint8_t)0x02)
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#define SPIF_FSR_PRERR ((uint8_t)0x02) /*!< Protection error */
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#define SPIF_FSR_PGSUS ((uint8_t)0x04) /*!< Program operation suspended */
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#define SPIF_FSR_VPPERR ((uint8_t)0x08) /*!< Invalid voltage during program or erase */
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#define SPIF_FSR_PGERR ((uint8_t)0x10) /*!< Program error */
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#define SPIF_FSR_ERERR ((uint8_t)0x20) /*!< Erase error */
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#define SPIF_FSR_ERSUS ((uint8_t)0x40) /*!< Erase operation suspended */
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#define SPIF_FSR_READY ((uint8_t)0x80) /*!< Ready or command in progress */
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typedef struct {
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uint8_t manufacturer;
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uint8_t type;
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uint8_t capacity;
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uint8_t id_len;
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uint32_t uid[4];
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} spif_id_t;
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typedef enum {
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SPIF_READY,
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SPIF_BUSY,
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SPIF_SUSPENDED,
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SPIF_ERROR
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} spif_status_t;
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extern spiffs spiffs_fs;
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int spif_init(void);
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int spif_read(uint32_t addr, uint32_t size, uint8_t *dat);
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int spif_write(uint32_t addr, uint32_t size, uint8_t *dat);
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int spif_erase_block(uint32_t addr);
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int spif_erase_sector(uint32_t addr);
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int spif_erase_chip(void);
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spif_status_t spif_get_status(void);
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int spif_read_id(spif_id_t *id);
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int spif_read_jedec_id(spif_id_t *id);
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void spiffs_init(void);
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