37 lines
839 B
C
37 lines
839 B
C
/*
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* spi.h
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*
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* Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com>
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* SPDX-License-Identifier: LGPL-3.0-or-later
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*/
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#pragma once
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#include <stdbool.h>
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struct spi_xfer_chunk {
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uint8_t *data;
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unsigned len;
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bool write;
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bool read;
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};
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#define SPI_CS_FLASH 0
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#define SPI_CS_LIU(n) (4+(n))
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void spi_init(void);
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void spi_xfer(unsigned cs, const struct spi_xfer_chunk *xfer, unsigned n);
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void flash_cmd(uint8_t cmd);
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void flash_deep_power_down(void);
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void flash_wake_up(void);
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void flash_write_enable(void);
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void flash_write_disable(void);
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void flash_manuf_id(void *manuf);
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void flash_unique_id(void *id);
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uint8_t flash_read_sr(void);
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void flash_write_sr(uint8_t sr);
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void flash_read(void *dst, uint32_t addr, unsigned len);
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void flash_page_program(void *src, uint32_t addr, unsigned len);
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void flash_sector_erase(uint32_t addr);
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