diff options
Diffstat (limited to 'libopencm3/include/libopencm3/lm3s/gpio.h')
-rw-r--r-- | libopencm3/include/libopencm3/lm3s/gpio.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/lm3s/gpio.h b/libopencm3/include/libopencm3/lm3s/gpio.h new file mode 100644 index 0000000..8b12078 --- /dev/null +++ b/libopencm3/include/libopencm3/lm3s/gpio.h @@ -0,0 +1,99 @@ +/** @defgroup gpio_defines General Purpose I/O Defines + +@brief <b>Defined Constants and Types for the LM3S General Purpose I/O</b> + +@ingroup LM3Sxx_defines + +@version 1.0.0 + +@author @htmlonly © @endhtmlonly 2011 +Gareth McMullin <gareth@blacksphere.co.nz> + +@date 10 March 2013 + +LGPL License Terms @ref lgpl_license + */ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz> + * + * 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 LM3S_GPIO_H +#define LM3S_GPIO_H + +/**@{*/ + +#include <libopencm3/cm3/common.h> +#include <libopencm3/lm3s/memorymap.h> + +/* --- Convenience macros -------------------------------------------------- */ + +/* GPIO port base addresses (for convenience) */ +#define GPIOA GPIOA_APB_BASE +#define GPIOB GPIOB_APB_BASE +#define GPIOC GPIOC_APB_BASE +#define GPIOD GPIOD_APB_BASE +#define GPIOE GPIOE_APB_BASE +#define GPIOF GPIOF_APB_BASE +#define GPIOG GPIOG_APB_BASE +#define GPIOH GPIOH_APB_BASE + +/* GPIO number definitions (for convenience) */ +#define GPIO0 (1 << 0) +#define GPIO1 (1 << 1) +#define GPIO2 (1 << 2) +#define GPIO3 (1 << 3) +#define GPIO4 (1 << 4) +#define GPIO5 (1 << 5) +#define GPIO6 (1 << 6) +#define GPIO7 (1 << 7) + +/* --- GPIO registers ------------------------------------------------------ */ + +#define GPIO_DATA(port) (&MMIO32(port + 0x000)) +#define GPIO_DIR(port) MMIO32(port + 0x400) +#define GPIO_IS(port) MMIO32(port + 0x404) +#define GPIO_IBE(port) MMIO32(port + 0x408) +#define GPIO_IEV(port) MMIO32(port + 0x40c) +#define GPIO_IM(port) MMIO32(port + 0x410) +#define GPIO_RIS(port) MMIO32(port + 0x414) +#define GPIO_MIS(port) MMIO32(port + 0x418) +#define GPIO_ICR(port) MMIO32(port + 0x41c) +#define GPIO_AFSEL(port) MMIO32(port + 0x420) +#define GPIO_DR2R(port) MMIO32(port + 0x500) +#define GPIO_DR4R(port) MMIO32(port + 0x504) +#define GPIO_DR8R(port) MMIO32(port + 0x508) +#define GPIO_ODR(port) MMIO32(port + 0x50c) +#define GPIO_PUR(port) MMIO32(port + 0x510) +#define GPIO_PDR(port) MMIO32(port + 0x514) +#define GPIO_SLR(port) MMIO32(port + 0x518) +#define GPIO_DEN(port) MMIO32(port + 0x51c) +#define GPIO_LOCK(port) MMIO32(port + 0x520) +#define GPIO_CR(port) MMIO32(port + 0x524) +#define GPIO_AMSEL(port) MMIO32(port + 0x528) + +BEGIN_DECLS + +void gpio_set(uint32_t gpioport, uint8_t gpios); +void gpio_clear(uint32_t gpioport, uint8_t gpios); + +END_DECLS + +/**@}*/ + +#endif + |