From 388f940475b6c66c0622f3ab1a9a48e5fed96775 Mon Sep 17 00:00:00 2001 From: Thomas Otto Date: Wed, 12 May 2010 18:10:38 +0200 Subject: Initial EXTI support. Thanks to Mark Butler . --- include/libopenstm32.h | 1 + include/libopenstm32/exti.h | 71 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 72 insertions(+) create mode 100644 include/libopenstm32/exti.h (limited to 'include') diff --git a/include/libopenstm32.h b/include/libopenstm32.h index c675ddf..4dbde73 100644 --- a/include/libopenstm32.h +++ b/include/libopenstm32.h @@ -43,5 +43,6 @@ #include #include #include +#include #endif diff --git a/include/libopenstm32/exti.h b/include/libopenstm32/exti.h new file mode 100644 index 0000000..c2e4867 --- /dev/null +++ b/include/libopenstm32/exti.h @@ -0,0 +1,71 @@ +/* + * This file is part of the libopenstm32 project. + * + * Copyright (C) 2010 Mark Butler + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef LIBOPENSTM32_EXTI_H +#define LIBOPENSTM32_EXTI_H + +#include +#include + +/*Define EXTI Registers */ +#define EXTI_IMR MMIO32(EXTI_BASE + 0x00) +#define EXTI_EMR MMIO32(EXTI_BASE + 0x04) +#define EXTI_RTSR MMIO32(EXTI_BASE + 0x08) +#define EXTI_FTSR MMIO32(EXTI_BASE + 0x0C) +#define EXTI_SWIER MMIO32(EXTI_BASE + 0x10) +#define EXTI_PR MMIO32(EXTI_BASE + 0x14) + +/* EXTI number definitions */ +#define EXTI0 (1 << 0) +#define EXTI1 (1 << 1) +#define EXTI2 (1 << 2) +#define EXTI3 (1 << 3) +#define EXTI4 (1 << 4) +#define EXTI5 (1 << 5) +#define EXTI6 (1 << 6) +#define EXTI7 (1 << 7) +#define EXTI8 (1 << 8) +#define EXTI9 (1 << 9) +#define EXTI10 (1 << 10) +#define EXTI11 (1 << 11) +#define EXTI12 (1 << 12) +#define EXTI13 (1 << 13) +#define EXTI14 (1 << 14) +#define EXTI15 (1 << 15) +#define EXTI16 (1 << 16) +#define EXTI17 (1 << 17) +#define EXTI18 (1 << 18) +#define EXTI19 (1 << 19) + +/*Define trigger types*/ +typedef enum trigger_e{ +EXTI_TRIGGER_RISING, +EXTI_TRIGGER_FALLING, +EXTI_TRIGGER_BOTH, +}exti_trigger_type; + +/*Function Prototypes */ +void exti_set_trigger(u32 extis,exti_trigger_type trig); +void exti_enable_request(u32 extis); +void exti_disable_request(u32 extis); +void exti_reset_request(u32 extis); +void exti_select_source(u32 exti, u32 gpioport); + + +#endif -- cgit v1.2.3