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/** @addtogroup gpio_defines
*
* @author @htmlonly © @endhtmlonly 2011
* Fergus Noble <fergusnoble@gmail.com>
* @author @htmlonly © @endhtmlonly 2012
* Ken Sarkies <ksarkies@internode.on.net>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
* Copyright (C) 2012 Ken Sarkies <ksarkies@internode.on.net>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA GPIO.H
The order of header inclusion is important. gpio.h includes the device
specific memorymap.h header before including this header file.*/
/** @cond */
#ifdef LIBOPENCM3_GPIO_H
/** @endcond */
#ifndef LIBOPENCM3_GPIO_COMMON_F234_H
#define LIBOPENCM3_GPIO_COMMON_F234_H
/**@{*/
#include <libopencm3/stm32/common/gpio_common_all.h>
/* GPIO port base addresses (for convenience) */
/** @defgroup gpio_port_id GPIO Port IDs
@ingroup gpio_defines
@{*/
#define GPIOA GPIO_PORT_A_BASE
#define GPIOB GPIO_PORT_B_BASE
#define GPIOC GPIO_PORT_C_BASE
#define GPIOD GPIO_PORT_D_BASE
#define GPIOE GPIO_PORT_E_BASE
#define GPIOF GPIO_PORT_F_BASE
/**@}*/
/* --- GPIO registers for STM32F2, STM32F3 and STM32F4 --------------------- */
/* Port mode register (GPIOx_MODER) */
#define GPIO_MODER(port) MMIO32(port + 0x00)
#define GPIOA_MODER GPIO_MODER(GPIOA)
#define GPIOB_MODER GPIO_MODER(GPIOB)
#define GPIOC_MODER GPIO_MODER(GPIOC)
#define GPIOD_MODER GPIO_MODER(GPIOD)
#define GPIOE_MODER GPIO_MODER(GPIOE)
#define GPIOF_MODER GPIO_MODER(GPIOF)
/* Port output type register (GPIOx_OTYPER) */
#define GPIO_OTYPER(port) MMIO32(port + 0x04)
#define GPIOA_OTYPER GPIO_OTYPER(GPIOA)
#define GPIOB_OTYPER GPIO_OTYPER(GPIOB)
#define GPIOC_OTYPER GPIO_OTYPER(GPIOC)
#define GPIOD_OTYPER GPIO_OTYPER(GPIOD)
#define GPIOE_OTYPER GPIO_OTYPER(GPIOE)
#define GPIOF_OTYPER GPIO_OTYPER(GPIOF)
/* Port output speed register (GPIOx_OSPEEDR) */
#define GPIO_OSPEEDR(port) MMIO32(port + 0x08)
#define GPIOA_OSPEEDR GPIO_OSPEEDR(GPIOA)
#define GPIOB_OSPEEDR GPIO_OSPEEDR(GPIOB)
#define GPIOC_OSPEEDR GPIO_OSPEEDR(GPIOC)
#define GPIOD_OSPEEDR GPIO_OSPEEDR(GPIOD)
#define GPIOE_OSPEEDR GPIO_OSPEEDR(GPIOE)
#define GPIOF_OSPEEDR GPIO_OSPEEDR(GPIOF)
/* Port pull-up/pull-down register (GPIOx_PUPDR) */
#define GPIO_PUPDR(port) MMIO32(port + 0x0c)
#define GPIOA_PUPDR GPIO_PUPDR(GPIOA)
#define GPIOB_PUPDR GPIO_PUPDR(GPIOB)
#define GPIOC_PUPDR GPIO_PUPDR(GPIOC)
#define GPIOD_PUPDR GPIO_PUPDR(GPIOD)
#define GPIOE_PUPDR GPIO_PUPDR(GPIOE)
#define GPIOF_PUPDR GPIO_PUPDR(GPIOF)
/* Port input data register (GPIOx_IDR) */
#define GPIO_IDR(port) MMIO32(port + 0x10)
#define GPIOA_IDR GPIO_IDR(GPIOA)
#define GPIOB_IDR GPIO_IDR(GPIOB)
#define GPIOC_IDR GPIO_IDR(GPIOC)
#define GPIOD_IDR GPIO_IDR(GPIOD)
#define GPIOE_IDR GPIO_IDR(GPIOE)
#define GPIOF_IDR GPIO_IDR(GPIOF)
/* Port output data register (GPIOx_ODR) */
#define GPIO_ODR(port) MMIO32(port + 0x14)
#define GPIOA_ODR GPIO_ODR(GPIOA)
#define GPIOB_ODR GPIO_ODR(GPIOB)
#define GPIOC_ODR GPIO_ODR(GPIOC)
#define GPIOD_ODR GPIO_ODR(GPIOD)
#define GPIOE_ODR GPIO_ODR(GPIOE)
#define GPIOF_ODR GPIO_ODR(GPIOF)
/* Port bit set/reset register (GPIOx_BSRR) */
#define GPIO_BSRR(port) MMIO32(port + 0x18)
#define GPIOA_BSRR GPIO_BSRR(GPIOA)
#define GPIOB_BSRR GPIO_BSRR(GPIOB)
#define GPIOC_BSRR GPIO_BSRR(GPIOC)
#define GPIOD_BSRR GPIO_BSRR(GPIOD)
#define GPIOE_BSRR GPIO_BSRR(GPIOE)
#define GPIOF_BSRR GPIO_BSRR(GPIOF)
/* Port configuration lock register (GPIOx_LCKR) */
#define GPIO_LCKR(port) MMIO32(port + 0x1c)
#define GPIOA_LCKR GPIO_LCKR(GPIOA)
#define GPIOB_LCKR GPIO_LCKR(GPIOB)
#define GPIOC_LCKR GPIO_LCKR(GPIOC)
#define GPIOD_LCKR GPIO_LCKR(GPIOD)
#define GPIOE_LCKR GPIO_LCKR(GPIOE)
#define GPIOF_LCKR GPIO_LCKR(GPIOF)
/* Alternate function low register (GPIOx_AFRL) */
#define GPIO_AFRL(port) MMIO32(port + 0x20)
#define GPIOA_AFRL GPIO_AFRL(GPIOA)
#define GPIOB_AFRL GPIO_AFRL(GPIOB)
#define GPIOC_AFRL GPIO_AFRL(GPIOC)
#define GPIOD_AFRL GPIO_AFRL(GPIOD)
#define GPIOE_AFRL GPIO_AFRL(GPIOE)
#define GPIOF_AFRL GPIO_AFRL(GPIOF)
/* Alternate function high register (GPIOx_AFRH) */
#define GPIO_AFRH(port) MMIO32(port + 0x24)
#define GPIOA_AFRH GPIO_AFRH(GPIOA)
#define GPIOB_AFRH GPIO_AFRH(GPIOB)
#define GPIOC_AFRH GPIO_AFRH(GPIOC)
#define GPIOD_AFRH GPIO_AFRH(GPIOD)
#define GPIOE_AFRH GPIO_AFRH(GPIOE)
#define GPIOF_AFRH GPIO_AFRH(GPIOF)
/* --- GPIOx_MODER values -------------------------------------------------- */
#define GPIO_MODE(n, mode) (mode << (2 * (n)))
#define GPIO_MODE_MASK(n) (0x3 << (2 * (n)))
/** @defgroup gpio_mode GPIO Pin Direction and Analog/Digital Mode
@ingroup gpio_defines
@{*/
#define GPIO_MODE_INPUT 0x0
#define GPIO_MODE_OUTPUT 0x1
#define GPIO_MODE_AF 0x2
#define GPIO_MODE_ANALOG 0x3
/**@}*/
/* --- GPIOx_OTYPER values ------------------------------------------------- */
/** @defgroup gpio_output_type GPIO Output Pin Driver Type
@ingroup gpio_defines
@list Push Pull
@list Open Drain
@{*/
#define GPIO_OTYPE_PP 0x0
#define GPIO_OTYPE_OD 0x1
/**@}*/
/* --- GPIOx_OSPEEDR values ------------------------------------------------ */
#define GPIO_OSPEED(n, speed) (speed << (2 * (n)))
#define GPIO_OSPEED_MASK(n) (0x3 << (2 * (n)))
/** @defgroup gpio_speed GPIO Output Pin Speed
@ingroup gpio_defines
@{*/
#define GPIO_OSPEED_2MHZ 0x0
#define GPIO_OSPEED_25MHZ 0x1
#define GPIO_OSPEED_50MHZ 0x2
#define GPIO_OSPEED_100MHZ 0x3
/**@}*/
/* --- GPIOx_PUPDR values -------------------------------------------------- */
#define GPIO_PUPD(n, pupd) (pupd << (2 * (n)))
#define GPIO_PUPD_MASK(n) (0x3 << (2 * (n)))
/** @defgroup gpio_pup GPIO Output Pin Pullup
@ingroup gpio_defines
@{*/
#define GPIO_PUPD_NONE 0x0
#define GPIO_PUPD_PULLUP 0x1
#define GPIO_PUPD_PULLDOWN 0x2
/**@}*/
/* --- GPIOx_IDR values ---------------------------------------------------- */
/* GPIOx_IDR[15:0]: IDRy[15:0]: Port input data (y = 0..15) */
/* --- GPIOx_ODR values ---------------------------------------------------- */
/* GPIOx_ODR[15:0]: ODRy[15:0]: Port output data (y = 0..15) */
/* --- GPIOx_BSRR values --------------------------------------------------- */
/* GPIOx_BSRR[31:16]: BRy: Port x reset bit y (y = 0..15) */
/* GPIOx_BSRR[15:0]: BSy: Port x set bit y (y = 0..15) */
/* --- GPIOx_LCKR values --------------------------------------------------- */
#define GPIO_LCKK (1 << 16)
/* GPIOx_LCKR[15:0]: LCKy: Port x lock bit y (y = 0..15) */
/* --- GPIOx_AFRL/H values ------------------------------------------------- */
/* Note: AFRL is used for bits 0..7, AFRH is used for 8..15 */
/* See datasheet table 6 (pg. 48) for alternate function mappings. */
#define GPIO_AFR(n, af) (af << ((n) * 4))
#define GPIO_AFR_MASK(n) (0xf << ((n) * 4))
/** @defgroup gpio_af_num Alternate Function Pin Selection
@ingroup gpio_defines
@{*/
#define GPIO_AF0 0x0
#define GPIO_AF1 0x1
#define GPIO_AF2 0x2
#define GPIO_AF3 0x3
#define GPIO_AF4 0x4
#define GPIO_AF5 0x5
#define GPIO_AF6 0x6
#define GPIO_AF7 0x7
#define GPIO_AF8 0x8
#define GPIO_AF9 0x9
#define GPIO_AF10 0xa
#define GPIO_AF11 0xb
#define GPIO_AF12 0xc
#define GPIO_AF13 0xd
#define GPIO_AF14 0xe
#define GPIO_AF15 0xf
/**@}*/
/* Note: EXTI source selection is now in the SYSCFG peripheral. */
/* --- Function prototypes ------------------------------------------------- */
BEGIN_DECLS
/*
* Note: The F2 and F4 series have a completely new GPIO peripheral with
* different configuration options. Here we implement a different API partly to
* more closely match the peripheral capabilities and also to deliberately
* break compatibility with old F1 code so there is no confusion with similar
* sounding functions that have very different functionality.
*/
void gpio_mode_setup(uint32_t gpioport, uint8_t mode, uint8_t pull_up_down,
uint16_t gpios);
void gpio_set_output_options(uint32_t gpioport, uint8_t otype, uint8_t speed,
uint16_t gpios);
void gpio_set_af(uint32_t gpioport, uint8_t alt_func_num, uint16_t gpios);
END_DECLS
/**@}*/
#endif
/** @cond */
#else
#warning "gpio_common_f234.h should not be included explicitly, only via gpio.h"
#endif
/** @endcond */
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