2 * Copyright (c) 2019 Tilman Sauerbeck (tilman at code-monkey de)
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 type Reg32 = register::Register<u32>;
28 const GPIO_BASE: u32 = 0x400ff000;
30 pub const GPIOA: u32 = GPIO_BASE + 0x000;
31 pub const GPIOB: u32 = GPIO_BASE + 0x040;
32 pub const GPIOC: u32 = GPIO_BASE + 0x080;
33 pub const GPIOD: u32 = GPIO_BASE + 0x0c0;
34 pub const GPIOE: u32 = GPIO_BASE + 0x100;
41 const GPIO_PSOR: u32 = 0x04;
42 const GPIO_PCOR: u32 = 0x08;
43 const GPIO_PTOR: u32 = 0x0c;
44 const GPIO_PDIR: u32 = 0x10;
45 const GPIO_PDDR: u32 = 0x14;
47 pub fn set(gpio: u32, pin_mask: u32) {
48 Reg32::new(gpio + GPIO_PSOR).write(pin_mask);
51 pub fn clear(gpio: u32, pin_mask: u32) {
52 Reg32::new(gpio + GPIO_PCOR).write(pin_mask);
55 pub fn toggle(gpio: u32, pin_mask: u32) {
56 Reg32::new(gpio + GPIO_PTOR).write(pin_mask);
59 pub fn set_direction(gpio: u32, pin_mask: u32, direction: Direction) {
60 let mut pddr = Reg32::new(gpio + GPIO_PDDR);
63 Direction::Output => {
64 pddr.modify(|v| v | pin_mask);
67 pddr.modify(|v| v & !pin_mask);
72 pub fn get(gpio: u32) -> u32 {
73 Reg32::new(gpio + GPIO_PDIR).read()