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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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* Copyright (C) 2016 Freie Universität Berlin
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* 2017 OTA keys S.A.
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#pragma once
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/**
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* @ingroup cpu_stm32
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* @{
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*
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* @file
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* @brief USB CPU specific definitions for the STM32 family
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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* @author Vincent Dupont <vincent@otakeys.com>
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*/
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#include <stdint.h>
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#include "periph/cpu_gpio.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief USBDEV buffers must be word aligned because of DMA restrictions
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*/
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#define USBDEV_CPU_DMA_ALIGNMENT (4)
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/**
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* @brief USBDEV buffer instantiation requirement
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*/
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#define USBDEV_CPU_DMA_REQUIREMENTS __attribute__((aligned(USBDEV_CPU_DMA_ALIGNMENT)))
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/**
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* @brief stm32 USB device FS configuration
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*/
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typedef struct {
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uintptr_t base_addr; /**< USB peripheral base address */
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uint32_t rcc_mask; /**< bit in clock enable register */
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uint8_t irqn; /**< IRQ channel */
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uint8_t apb; /**< APB bus */
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gpio_t dm; /**< Data- gpio */
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gpio_t dp; /**< Data+ gpio */
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gpio_af_t af; /**< Alternative function */
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gpio_t disconn; /**< GPIO if used for USB disconnect */
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} stm32_usbdev_fs_config_t;
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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