46d83d9748
This is a basic SDIO driver for the mimxrt port, that was added mainly to support the CYW43 WiFi driver, and as such it only supports the commands required by the CYW43 driver (but more commands can be added easily). The driver performs non-blocking DMA transfers, and can detect and recover from errors. Note: because the mimxrt port is missing static alternate functions, named pins and other pin related functions, currently the alternate functions for USDHC 1 and 2 are hard-coded in the driver. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
41 lines
1.7 KiB
C
41 lines
1.7 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) 2023 Ibrahim Abdelkader <iabdalkader@openmv.io>
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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_MIMXRT_SDIO_H
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#define MICROPY_INCLUDED_MIMXRT_SDIO_H
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#include <stdbool.h>
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#include <stdint.h>
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void sdio_init(uint32_t irq_pri);
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void sdio_deinit(void);
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void sdio_reenable(void);
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void sdio_enable_irq(bool enable);
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void sdio_enable_high_speed_4bit(void);
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int sdio_transfer(uint32_t cmd, uint32_t arg, uint32_t *resp);
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int sdio_transfer_cmd53(bool write, uint32_t block_size, uint32_t arg, size_t len, uint8_t *buf);
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#endif // MICROPY_INCLUDED_MIMXRT_SDIO_H
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