/* * This file is part of the libopencm3 project. * * Copyright (C) 2010 Uwe Hermann * * 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 . */ #ifndef LPC17XX_GPIO_H #define LPC17XX_GPIO_H #include #include /* --- Convenience macros -------------------------------------------------- */ /* GPIO port base addresses (for convenience) */ #define GPIO0 GPIO_PIO0_BASE #define GPIO1 GPIO_PIO1_BASE #define GPIO2 GPIO_PIO2_BASE #define GPIO3 GPIO_PIO3_BASE #define GPIO4 GPIO_PIO4_BASE /* GPIO number definitions (for convenience) */ #define GPIOPIN0 (1 << 0) /* --- GPIO registers ------------------------------------------------------ */ /* GPIO data direction register (GPIOn_DIR) */ #define GPIO_DIR(port) MMIO32(port + 0x00) #define GPIO0_DIR GPIO_DIR(GPIO0) #define GPIO1_DIR GPIO_DIR(GPIO1) #define GPIO2_DIR GPIO_DIR(GPIO2) #define GPIO3_DIR GPIO_DIR(GPIO3) #define GPIO4_DIR GPIO_DIR(GPIO4) /* GPIO port pin value register (GPIOn_PIN) */ #define GPIO_PIN(port) MMIO32(port + 0x14) #define GPIO0_PIN GPIO_PIN(GPIO0) #define GPIO1_PIN GPIO_PIN(GPIO1) #define GPIO2_PIN GPIO_PIN(GPIO2) #define GPIO3_PIN GPIO_PIN(GPIO3) #define GPIO4_PIN GPIO_PIN(GPIO4) /* GPIO port output set register (GPIOn_SET) */ #define GPIO_SET(port) MMIO32(port + 0x18) #define GPIO0_SET GPIO_SET(GPIO0) #define GPIO1_SET GPIO_SET(GPIO1) #define GPIO2_SET GPIO_SET(GPIO2) #define GPIO3_SET GPIO_SET(GPIO3) #define GPIO4_SET GPIO_SET(GPIO4) /* GPIO port output clear register (GPIOn_CLR) */ #define GPIO_CLR(port) MMIO32(port + 0x1C) #define GPIO0_CLR GPIO_CLR(GPIO0) #define GPIO1_CLR GPIO_CLR(GPIO1) #define GPIO2_CLR GPIO_CLR(GPIO2) #define GPIO3_CLR GPIO_CLR(GPIO3) #define GPIO4_CLR GPIO_CLR(GPIO4) #endif