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 PORT_BASE: u32 = 0x40049000;
30 pub const PORTA: u32 = PORT_BASE + 0x0000;
31 pub const PORTB: u32 = PORT_BASE + 0x1000;
32 pub const PORTC: u32 = PORT_BASE + 0x2000;
33 pub const PORTD: u32 = PORT_BASE + 0x3000;
34 pub const PORTE: u32 = PORT_BASE + 0x4000;
36 const PORT_PCR_MUX_SHIFT: u32 = 8;
37 const PORT_PCR_MUX_MASK: u32 = 3 << PORT_PCR_MUX_SHIFT;
39 const PORT_PCR_PE: u32 = 1 << 1;
40 const PORT_PCR_PS: u32 = 1 << 0;
48 fn pcr_offset(pin: u32) -> u32 {
52 pub fn set_af(port: u32, pin: u32, af: u32) {
53 let mut pcr = Reg32::new(port + pcr_offset(pin));
56 (v & !PORT_PCR_MUX_MASK) | (af << PORT_PCR_MUX_SHIFT)
60 pub fn set_pull(port: u32, pin: u32, pull: Pull) {
61 let mut pcr = Reg32::new(port + pcr_offset(pin));
71 v | PORT_PCR_PE | PORT_PCR_PS
76 (v | PORT_PCR_PE) & !PORT_PCR_PS