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package com.diozero.internal.board.beaglebone;
/*
* #%L
* Organisation: mattjlewis
* Project: Device I/O Zero - Core
* Filename: BeagleBoneBoardInfoProvider.java
*
* This file is part of the diozero project. More information about this project
* can be found at http://www.diozero.com/
* %%
* Copyright (C) 2016 - 2017 mattjlewis
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.pmw.tinylog.Logger;
import com.diozero.api.PinInfo;
import com.diozero.util.BoardInfo;
import com.diozero.util.BoardInfoProvider;
public class BeagleBoneBoardInfoProvider implements BoardInfoProvider {
public static final String MAKE = "BeagleBone";
private static final String BBB_HARDWARE_ID = "Generic AM33XX";
public static final BoardInfo BBB_BOARD_INFO = new BeagleBoneBlackBoardInfo();
@Override
public BoardInfo lookup(String hardware, String revision, Integer memoryKb) {
if (hardware != null && hardware.startsWith(BBB_HARDWARE_ID)) {
return BBB_BOARD_INFO;
}
return null;
}
public static class BeagleBoneBlackBoardInfo extends BoardInfo {
public static final String P9_HEADER = "P9";
public static final String P8_HEADER = "P8";
public static final String MODEL = "Black";
private static final int MEMORY = 512;
private static final String BBB_LIB_PATH = MAKE.toLowerCase() + "/" + MODEL.toLowerCase();
public BeagleBoneBlackBoardInfo() {
super(MAKE, MODEL, MEMORY, BBB_LIB_PATH);
}
@Override
public void initialisePins() {
addGpioPinInfo(P9_HEADER, 60, 12, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 48, 15, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 49, 23, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 117, 25, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 115, 27, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 112, 30, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P9_HEADER, 20, 41, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 66, 7, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 67, 8, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 69, 9, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 68, 10, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 45, 11, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 44, 12, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 26, 14, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 47, 15, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 46, 16, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 27, 17, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 65, 18, PinInfo.DIGITAL_IN_OUT);
addGpioPinInfo(P8_HEADER, 61, 26, PinInfo.DIGITAL_IN_OUT);
// To enable: sudo sh -c "echo 'BB-ADC' > /sys/devices/platform/bone_capemgr/slots"
addAdcPinInfo(P9_HEADER, 0, "AIN0", 39);
addAdcPinInfo(P9_HEADER, 1, "AIN1", 40);
addAdcPinInfo(P9_HEADER, 2, "AIN2", 37);
addAdcPinInfo(P9_HEADER, 3, "AIN3", 38);
addAdcPinInfo(P9_HEADER, 4, "AIN4", 33);
addAdcPinInfo(P9_HEADER, 5, "AIN5", 36);
addAdcPinInfo(P9_HEADER, 6, "AIN6", 35);
// BB-PWM0,BB-PWM1,BB-PWM2
addPwmPinInfo(P9_HEADER, -1, "EHRPWM1A", 14, 0, PinInfo.DIGITAL_IN_OUT_PWM);
addPwmPinInfo(P9_HEADER, -1, "EHRPWM1B", 16, 1, PinInfo.DIGITAL_IN_OUT_PWM);
addPwmPinInfo(P8_HEADER, -1, "EHRPWM2A", 13, 3, PinInfo.DIGITAL_IN_OUT_PWM);
addPwmPinInfo(P8_HEADER, -1, "EHRPWM2B", 19, 4, PinInfo.DIGITAL_IN_OUT_PWM);
}
@Override
public int getPwmChip(int pwmNum) {
// FIXME How to work this out? Temporarily hardcode to GPIO 50 (EHRPWM1A, P9_14)
String chip = "48302000";
String address = "48302200";
Path chip_path = Paths.get("/sys/devices/platform/ocp/" + chip + ".epwmss/" + address + ".pwm/pwm");
int pwm_chip = -1;
// FIXME Treat as a stream
try (DirectoryStream dirs = Files.newDirectoryStream(chip_path, "pwm*")) {
for (Path p : dirs) {
String dir = p.getFileName().toString();
Logger.info("Got {}" + dir);
pwm_chip = Integer.parseInt(dir.substring(dir.length()-1));
Logger.info("Found pwmChip {}", Integer.valueOf(pwm_chip));
}
} catch (IOException e) {
Logger.error(e, "Error: " + e);
}
return pwm_chip;
}
/*
@Override
public MmapGpioInterface createMmapGpio() {
return new BeagleBoneBlackMmapGpio();
}
*/
}
}
