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Diffstat (limited to 'libopencm3/include/libopencm3/lpc17xx/gpio.h')
| -rw-r--r-- | libopencm3/include/libopencm3/lpc17xx/gpio.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/lpc17xx/gpio.h b/libopencm3/include/libopencm3/lpc17xx/gpio.h new file mode 100644 index 0000000..2aecd6b --- /dev/null +++ b/libopencm3/include/libopencm3/lpc17xx/gpio.h @@ -0,0 +1,160 @@ +/** @defgroup gpio_defines GPIO Defines + +@brief <b>Defined Constants and Types for the LPC17xx General Purpose I/O</b> + +@ingroup LPC17xx_defines + +@version 1.0.0 + +@author @htmlonly © @endhtmlonly 2009 Uwe Hermann <uwe@hermann-uwe.de> + +@date 10 March 2013 + +LGPL License Terms @ref lgpl_license + */ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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/>. + */ + +#ifndef LPC17XX_GPIO_H +#define LPC17XX_GPIO_H + +/**@{*/ + +#include <libopencm3/cm3/common.h> +#include <libopencm3/lpc17xx/memorymap.h> + +/* --- 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) +#define GPIOPIN1 (1 << 1) +#define GPIOPIN2 (1 << 2) +#define GPIOPIN3 (1 << 3) +#define GPIOPIN4 (1 << 4) +#define GPIOPIN5 (1 << 5) +#define GPIOPIN6 (1 << 6) +#define GPIOPIN7 (1 << 7) +#define GPIOPIN8 (1 << 8) +#define GPIOPIN9 (1 << 9) +#define GPIOPIN10 (1 << 10) +#define GPIOPIN11 (1 << 11) +#define GPIOPIN12 (1 << 12) +#define GPIOPIN13 (1 << 13) +#define GPIOPIN14 (1 << 14) +#define GPIOPIN15 (1 << 15) +#define GPIOPIN16 (1 << 16) +#define GPIOPIN17 (1 << 17) +#define GPIOPIN18 (1 << 18) +#define GPIOPIN19 (1 << 19) +#define GPIOPIN20 (1 << 20) +#define GPIOPIN21 (1 << 21) +#define GPIOPIN22 (1 << 22) +#define GPIOPIN23 (1 << 23) +#define GPIOPIN24 (1 << 24) +#define GPIOPIN25 (1 << 25) +#define GPIOPIN26 (1 << 26) +#define GPIOPIN27 (1 << 27) +#define GPIOPIN28 (1 << 28) +#define GPIOPIN29 (1 << 29) +#define GPIOPIN30 (1 << 30) +#define GPIOPIN31 (1 << 31) + +/* --- 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 fast mask register (GPIOn_DIR) */ +#define GPIO_MASK(port) MMIO32(port + 0x10) +#define GPIO0_MASK GPIO_MASK(GPIO0) +#define GPIO1_MASK GPIO_MASK(GPIO1) +#define GPIO2_MASK GPIO_MASK(GPIO2) +#define GPIO3_MASK GPIO_MASK(GPIO3) +#define GPIO4_MASK GPIO_MASK(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) + +/* GPIO interrupt register map */ +/* Interrupt enable rising edge */ +#define GPIO0_IER MMIO32(GPIOINTERRUPT_BASE + 0x90) +#define GPIO2_IER MMIO32(GPIOINTERRUPT_BASE + 0xB0) + +/* Interrupt enable falling edge */ +#define GPIO0_IEF MMIO32(GPIOINTERRUPT_BASE + 0x94) +#define GPIO2_IEF MMIO32(GPIOINTERRUPT_BASE + 0xB4) + +/* Interrupt status rising edge */ +#define GPIO0_ISR MMIO32(GPIOINTERRUPT_BASE + 0x84) +#define GPIO2_ISR MMIO32(GPIOINTERRUPT_BASE + 0xA4) + +/* Interrupt status falling edge */ +#define GPIO0_ISF MMIO32(GPIOINTERRUPT_BASE + 0x88) +#define GPIO2_ISF MMIO32(GPIOINTERRUPT_BASE + 0xA8) + +/* Interrupt clear */ +#define GPIO0_IC MMIO32(GPIOINTERRUPT_BASE + 0x8C) +#define GPIO1_IC MMIO32(GPIOINTERRUPT_BASE + 0xAC) + +/* Overall interrupt status */ +#define GPIO_IS MMIO32(GPIOINTERRUPT_BASE + 0x80) + +BEGIN_DECLS + +void gpio_set(uint32_t gpioport, uint32_t gpios); +void gpio_clear(uint32_t gpioport, uint32_t gpios); + +END_DECLS + +/**@}*/ + +#endif |