mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
1fde5a4401
Since some STM32 MCU don't have internal D+ pullup, there are boards that use a GPIO for USB bus connect/disconnect.
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2016 Freie Universität Berlin
|
|
* 2017 OTA keys S.A.
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup cpu_stm32
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief USB CPU specific definitions for the STM32 family
|
|
*
|
|
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
|
|
* @author Vincent Dupont <vincent@otakeys.com>
|
|
*/
|
|
|
|
#ifndef PERIPH_CPU_USBDEV_H
|
|
#define PERIPH_CPU_USBDEV_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "periph/cpu_gpio.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief USBDEV buffers must be word aligned because of DMA restrictions
|
|
*/
|
|
#define USBDEV_CPU_DMA_ALIGNMENT (4)
|
|
|
|
/**
|
|
* @brief USBDEV buffer instantiation requirement
|
|
*/
|
|
#define USBDEV_CPU_DMA_REQUIREMENTS __attribute__((aligned(USBDEV_CPU_DMA_ALIGNMENT)))
|
|
|
|
/**
|
|
* @brief stm32 USB device FS configuration
|
|
*/
|
|
typedef struct {
|
|
uintptr_t base_addr; /**< USB peripheral base address */
|
|
uint32_t rcc_mask; /**< bit in clock enable register */
|
|
uint8_t irqn; /**< IRQ channel */
|
|
uint8_t apb; /**< APB bus */
|
|
gpio_t dm; /**< Data- gpio */
|
|
gpio_t dp; /**< Data+ gpio */
|
|
gpio_af_t af; /**< Alternative function */
|
|
gpio_t disconn; /**< GPIO if used for USB disconnect */
|
|
} stm32_usbdev_fs_config_t;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PERIPH_CPU_USBDEV_H */
|
|
/** @} */
|