77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017-2018 Damien P. George
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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
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_DRIVERS_BUS_QSPI_H
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#define MICROPY_INCLUDED_DRIVERS_BUS_QSPI_H
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#include "py/mphal.h"
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#ifndef MICROPY_HW_SPI_ADDR_IS_32BIT
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#define MICROPY_HW_SPI_ADDR_IS_32BIT(addr) (addr & 0xff000000)
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#endif
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enum {
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MP_QSPI_IOCTL_INIT,
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MP_QSPI_IOCTL_DEINIT,
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MP_QSPI_IOCTL_BUS_ACQUIRE,
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MP_QSPI_IOCTL_BUS_RELEASE,
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};
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typedef struct _mp_qspi_proto_t {
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int (*ioctl)(void *self, uint32_t cmd);
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int (*write_cmd_data)(void *self, uint8_t cmd, size_t len, uint32_t data);
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int (*write_cmd_addr_data)(void *self, uint8_t cmd, uint32_t addr, size_t len, const uint8_t *src);
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int (*read_cmd)(void *self, uint8_t cmd, size_t len, uint32_t *dest);
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int (*read_cmd_qaddr_qdata)(void *self, uint8_t cmd, uint32_t addr, size_t len, uint8_t *dest);
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} mp_qspi_proto_t;
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typedef struct _mp_soft_qspi_obj_t {
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mp_hal_pin_obj_t cs;
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mp_hal_pin_obj_t clk;
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mp_hal_pin_obj_t io0;
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mp_hal_pin_obj_t io1;
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mp_hal_pin_obj_t io2;
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mp_hal_pin_obj_t io3;
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} mp_soft_qspi_obj_t;
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extern const mp_qspi_proto_t mp_soft_qspi_proto;
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static inline uint8_t mp_spi_set_addr_buff(uint8_t *buf, uint32_t addr) {
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if (MICROPY_HW_SPI_ADDR_IS_32BIT(addr)) {
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buf[0] = addr >> 24;
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buf[1] = addr >> 16;
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buf[2] = addr >> 8;
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buf[3] = addr;
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return 4;
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} else {
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buf[0] = addr >> 16;
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buf[1] = addr >> 8;
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buf[2] = addr;
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return 3;
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}
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}
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#endif // MICROPY_INCLUDED_DRIVERS_BUS_QSPI_H
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