4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
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29 * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
33 * \brief STM32 GPIO control interface.
41 /* GPIO configuration registers structure */
60 GPIO_MODE_IN_FLOATING = 0x04,
63 GPIO_MODE_OUT_OD = 0x14,
64 GPIO_MODE_OUT_PP = 0x10,
65 GPIO_MODE_AF_OD = 0x1C,
66 GPIO_MODE_AF_PP = 0x18,
82 /* Write a value to the specified pin(s) */
84 stm32_gpioPinWrite(struct stm32_gpio *base, uint32_t pins, uint8_t val)
92 /* Read a value from the specified pin(s) */
93 INLINE uint8_t stm32_gpioPinRead(struct stm32_gpio *base, uint32_t pins)
95 return !!(base->IDR & pins);
98 /* Initialize a GPIO peripheral configuration */
99 int stm32_gpioPinConfig(struct stm32_gpio *base,
100 uint16_t pins, uint8_t mode, uint8_t speed);
102 #endif /* GPIO_STM32_H */