mirror of
https://github.com/Hopiu/rpi-rgb-led-matrix.git
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b68d100ae0
mapping choosable at run-time (and hence: via command line flag). Now, Adafruit HAT users don't have to recompile.
185 lines
5.7 KiB
C
185 lines
5.7 KiB
C
/* -*- mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* Copyright (C) 2013, 2016 Henner Zeller <h.zeller@acm.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http: *gnu.org/licenses/gpl-2.0.txt>
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*/
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/*
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* We do this in plain C so that we can use designated initializers.
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*/
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#include "hardware-mapping.h"
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#define GPIO_BIT(b) (1<<(b))
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struct HardwareMapping matrix_hardware_mappings[] = {
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/*
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* The regular hardware mapping described in the wiring.md and used
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* by the adapter PCBs.
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*/
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{
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.name = "regular",
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.output_enable = GPIO_BIT(18),
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.clock = GPIO_BIT(17),
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.strobe = GPIO_BIT(4),
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/* Address lines */
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.a = GPIO_BIT(22),
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.b = GPIO_BIT(23),
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.c = GPIO_BIT(24),
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.d = GPIO_BIT(25),
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.e = GPIO_BIT(15), /* RxD kept free unless 1:64 */
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/* Parallel chain 0, RGB for both sub-panels */
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.p0_r1 = GPIO_BIT(11), /* masks: SPI0_SCKL */
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.p0_g1 = GPIO_BIT(27), /* Not on RPi1, Rev1 */
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.p0_b1 = GPIO_BIT(7), /* masks: SPI0_CE1 */
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.p0_r2 = GPIO_BIT(8), /* masks: SPI0_CE0 */
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.p0_g2 = GPIO_BIT(9), /* masks: SPI0_MISO */
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.p0_b2 = GPIO_BIT(10), /* masks: SPI0_MOSI */
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/* All the following are only available with 40 GPIP pins, on A+/B+/Pi2,3 */
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/* Chain 1 */
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.p1_r1 = GPIO_BIT(12),
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.p1_g1 = GPIO_BIT(5),
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.p1_b1 = GPIO_BIT(6),
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.p1_r2 = GPIO_BIT(19),
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.p1_g2 = GPIO_BIT(13),
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.p1_b2 = GPIO_BIT(20),
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/* Chain 2 */
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.p2_r1 = GPIO_BIT(14), /* masks TxD when parallel=3 */
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.p2_g1 = GPIO_BIT(2), /* masks SCL when parallel=3 */
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.p2_b1 = GPIO_BIT(3), /* masks SDA when parallel=3 */
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.p2_r2 = GPIO_BIT(26),
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.p2_g2 = GPIO_BIT(16),
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.p2_b2 = GPIO_BIT(21),
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},
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/*
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* This is used if you have an Adafruit HAT in the default configuration
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*/
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{
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.name = "adafruit-hat",
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.output_enable = GPIO_BIT(4),
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.clock = GPIO_BIT(17),
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.strobe = GPIO_BIT(21),
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.a = GPIO_BIT(22),
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.b = GPIO_BIT(26),
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.c = GPIO_BIT(27),
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.d = GPIO_BIT(20),
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.e = GPIO_BIT(24), /* Needs manual wiring, see README.md */
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.p0_r1 = GPIO_BIT(5),
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.p0_g1 = GPIO_BIT(13),
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.p0_b1 = GPIO_BIT(6),
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.p0_r2 = GPIO_BIT(12),
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.p0_g2 = GPIO_BIT(16),
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.p0_b2 = GPIO_BIT(23),
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},
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/*
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* An Adafruit HAT with the PWM modification
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*/
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{
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.name = "adafruit-hat-pwm",
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.output_enable = GPIO_BIT(18), /* The only change compared to above */
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.clock = GPIO_BIT(17),
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.strobe = GPIO_BIT(21),
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.a = GPIO_BIT(22),
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.b = GPIO_BIT(26),
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.c = GPIO_BIT(27),
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.d = GPIO_BIT(20),
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.e = GPIO_BIT(24),
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.p0_r1 = GPIO_BIT(5),
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.p0_g1 = GPIO_BIT(13),
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.p0_b1 = GPIO_BIT(6),
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.p0_r2 = GPIO_BIT(12),
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.p0_g2 = GPIO_BIT(16),
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.p0_b2 = GPIO_BIT(23),
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},
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/*
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* Classic: Early forms of this library had this as default mapping, mostly
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* derived from the 26 GPIO-header version so that it also can work
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* on 40 Pin GPIO headers with more parallel chains.
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* Not used anymore.
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*/
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{
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.name = "classic",
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.output_enable = GPIO_BIT(27), /* Not available on RPi1, Rev 1 */
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.clock = GPIO_BIT(11),
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.strobe = GPIO_BIT(4),
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.a = GPIO_BIT(7),
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.b = GPIO_BIT(8),
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.c = GPIO_BIT(9),
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.d = GPIO_BIT(10),
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.p0_r1 = GPIO_BIT(17),
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.p0_g1 = GPIO_BIT(18),
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.p0_b1 = GPIO_BIT(22),
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.p0_r2 = GPIO_BIT(23),
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.p0_g2 = GPIO_BIT(24),
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.p0_b2 = GPIO_BIT(25),
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.p1_r1 = GPIO_BIT(12),
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.p1_g1 = GPIO_BIT(5),
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.p1_b1 = GPIO_BIT(6),
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.p1_r2 = GPIO_BIT(19),
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.p1_g2 = GPIO_BIT(13),
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.p1_b2 = GPIO_BIT(20),
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.p2_r1 = GPIO_BIT(14), /* masks TxD if parallel = 3 */
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.p2_g1 = GPIO_BIT(2), /* masks SDA if parallel = 3 */
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.p2_b1 = GPIO_BIT(3), /* masks SCL if parallel = 3 */
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.p2_r2 = GPIO_BIT(15),
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.p2_g2 = GPIO_BIT(26),
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.p2_b2 = GPIO_BIT(21),
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},
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/*
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* Classic pin-out for Rev-A Raspberry Pi.
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*/
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{
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.name = "classic-pi1",
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/* The Revision-1 and Revision-2 boards have different GPIO mappings
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* on the P1-3 and P1-5. So we use both interpretations.
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* To keep the I2C pins free, we avoid these in later mappings.
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*/
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.output_enable = GPIO_BIT(0) | GPIO_BIT(2),
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.clock = GPIO_BIT(1) | GPIO_BIT(3),
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.strobe = GPIO_BIT(4),
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.a = GPIO_BIT(7),
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.b = GPIO_BIT(8),
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.c = GPIO_BIT(9),
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.d = GPIO_BIT(10),
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.p0_r1 = GPIO_BIT(17),
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.p0_g1 = GPIO_BIT(18),
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.p0_b1 = GPIO_BIT(22),
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.p0_r2 = GPIO_BIT(23),
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.p0_g2 = GPIO_BIT(24),
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.p0_b2 = GPIO_BIT(25),
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},
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{0}
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};
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