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/*
* Copyright © 2010 Keith Packard <keithp@keithp.com>
*
* 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; version 2 of the License.
*
* 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, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package altosui;
import java.lang.*;
import java.io.*;
import java.util.*;
import altosui.AltosDevice;
public class AltosDeviceLinux extends AltosDevice {
String load_string(File file) {
try {
FileInputStream in = new FileInputStream(file);
String result = "";
int c;
try {
while ((c = in.read()) != -1) {
if (c == '\n')
break;
result = result + (char) c;
}
return result;
} catch (IOException ee) {
return "";
}
} catch (FileNotFoundException ee) {
return "";
}
}
String load_string(File dir, String name) {
return load_string(new File(dir, name));
}
int load_hex(File file) {
try {
return Integer.parseInt(load_string(file).trim(), 16);
} catch (NumberFormatException ee) {
return -1;
}
}
int load_hex(File dir, String name) {
return load_hex(new File(dir, name));
}
int load_dec(File file) {
try {
return Integer.parseInt(load_string(file).trim());
} catch (NumberFormatException ee) {
return -1;
}
}
int load_dec(File dir, String name) {
return load_dec(new File(dir, name));
}
String usb_tty(File sys_dir) {
String base = sys_dir.getName();
int num_configs = load_hex(sys_dir, "bNumConfigurations");
int num_inters = load_hex(sys_dir, "bNumInterfaces");
for (int config = 1; config <= num_configs; config++) {
for (int inter = 0; inter < num_inters; inter++) {
String endpoint_base = String.format("%s:%d.%d",
base, config, inter);
File endpoint_full = new File(sys_dir, endpoint_base);
File[] namelist;
/* Check for tty:ttyACMx style names */
class tty_colon_filter implements FilenameFilter {
public boolean accept(File dir, String name) {
return name.startsWith("tty:");
}
}
namelist = endpoint_full.listFiles(new tty_colon_filter());
if (namelist != null && namelist.length > 0)
return new File ("/dev", namelist[0].getName().substring(4)).getPath();
/* Check for tty/ttyACMx style names */
class tty_filter implements FilenameFilter {
public boolean accept(File dir, String name) {
return name.startsWith("tty");
}
}
File tty_dir = new File(endpoint_full, "tty");
namelist = tty_dir.listFiles(new tty_filter());
if (namelist != null && namelist.length > 0)
return new File ("/dev", namelist[0].getName()).getPath();
}
}
return null;
}
public AltosDeviceLinux (File sys) {
sys = sys;
manufacturer = load_string(sys, "manufacturer");
product = load_string(sys, "product");
serial = load_dec(sys, "serial");
idProduct = load_hex(sys, "idProduct");
idVendor = load_hex(sys, "idVendor");
tty = usb_tty(sys);
}
public String toString() {
return String.format("%-20s %6d %-15s", product, serial, tty == null ? "" : tty);
}
static public AltosDeviceLinux[] list() {
LinkedList<AltosDeviceLinux> devices = new LinkedList<AltosDeviceLinux>();
class dev_filter implements FilenameFilter{
public boolean accept(File dir, String name) {
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if (Character.isDigit(c))
continue;
if (c == '-')
continue;
if (c == '.' && i != 1)
continue;
return false;
}
return true;
}
}
File usb_devices = new File("/sys/bus/usb/devices");
File[] devs = usb_devices.listFiles(new dev_filter());
if (devs != null) {
for (int e = 0; e < devs.length; e++) {
AltosDeviceLinux dev = new AltosDeviceLinux(devs[e]);
if (dev.idVendor == 0xfffe && dev.tty != null) {
devices.add(dev);
}
}
}
AltosDeviceLinux[] foo = new AltosDeviceLinux[devices.size()];
for (int e = 0; e < devices.size(); e++)
foo[e] = devices.get(e);
return foo;
}
static public AltosDeviceLinux[] list(String model) {
AltosDeviceLinux[] devices = list();
if (model != null) {
LinkedList<AltosDeviceLinux> subset = new LinkedList<AltosDeviceLinux>();
for (int i = 0; i < devices.length; i++) {
if (devices[i].product.startsWith(model))
subset.add(devices[i]);
}
devices = new AltosDeviceLinux[subset.size()];
for (int e = 0; e < subset.size(); e++)
devices[e] = subset.get(e);
}
return devices;
}
}
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