New Ubuntu ThinkPad Notification Program
Posted on: May 3, 2009
I’ve changed the program to also notify of changes in brightness for ThinkPads that have that problem, too. If the brightness node in ibm/acpi does not exist, then nothing is done for brightness; this way the program remains 100% compatible with T60 and similar ThinkPads.
To use this program, just: use the following steps
- sudo apt-get install libnotify-dev
- paste the Makefile below into a file called Makefile
- paste the code below (notify.c) into a file called notify.c in the same directory as the Makefile
- Type make in that same directory
- Execute ./notify
This is the Makefile, but keep in mind these two things:
1) the line starting with ${CC} MUST begin with a tab.
2) feel free to remove -g (create debug info) and change -O0 to -O3 to optmize properly.
GTKPATH = `pkg-config --cflags --libs gtk+-2.0`
CC = gcc
LIBS = -lnotify
OUTPUT = -o notify
all:
${CC} -O0 -g -Wall ${GTKPATH} notify.c ${LIBS} ${OUTPUT}
And this is the updated program (notify.c). I hope that it is pasted correctly here; if not please leave a comment and I’ll try to fix the upload asap.
/*
* Copyright (c) 2009 Alex Hornung. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include<libnotify/notify.h>
#define VOLUME_NODE "/proc/acpi/ibm/volume"
#define BRIGHTNESS_NODE "/proc/acpi/ibm/brightness"
#define BRIGHTNESS_NEW_NODE "/proc/acpi/video/VID/LCD0/brightness"
#define NOTIFICATION_TIMEOUT 500
#define SLEEP_MICROSECONDS 250000 //250 ms
void show_notify_volume(gint volume, int mute)
{
char name[] = "Volume";
static gint volume_old = 255;
static int mute_old = -1;
NotifyNotification *not;
if ((mute_old == mute) && (volume_old == volume))
return;
if (!notify_init(name)) {
printf("no good at notify_init()\n");
return;
}
if (mute) {
not = notify_notification_new(name, NULL, "notification-audio-volume-muted", NULL);
} else {
if (volume > 10)
not = notify_notification_new(name, NULL, "notification-audio-volume-high", NULL);
else if (volume > 4)
not = notify_notification_new(name, NULL, "notification-audio-volume-medium", NULL);
else if (volume > 0)
not = notify_notification_new(name, NULL, "notification-audio-volume-low", NULL);
else
not = notify_notification_new(name, NULL, "notification-audio-volume-off", NULL);
}
notify_notification_set_hint_int32(not, "value", volume<<3);
notify_notification_set_hint_string(not, "x-canonical-private-synchronous", "");
notify_notification_set_timeout(not, NOTIFICATION_TIMEOUT);
notify_notification_show(not, NULL);
g_object_unref(G_OBJECT(not));
volume_old = volume;
mute_old = mute;
}
void show_notify_brightness(gint brightness)
{
char name[] = "Brightness";
static gint brightness_old = 255;
NotifyNotification *not;
if ((brightness_old == brightness))
return;
if (!notify_init(name)) {
printf("no good at notify_init()\n");
return;
}
if (brightness > 70)
not = notify_notification_new(name, NULL, "notification-display-brightness-high", NULL);
else if (brightness > 40)
not = notify_notification_new(name, NULL, "notification-display-brightness-medium", NULL);
else
not = notify_notification_new(name, NULL, "notification-display-brightness-low", NULL);
notify_notification_set_hint_int32(not, "value", brightness);
notify_notification_set_hint_string(not, "x-canonical-private-synchronous", "");
notify_notification_set_timeout(not, NOTIFICATION_TIMEOUT);
notify_notification_show(not, NULL);
g_object_unref(G_OBJECT(not));
brightness_old = brightness;
}
int main(int argc, char *argv[])
{
int fd,
fd_brightness,
fd_new_brightness,
nread,
mute;
gint volume,
brightness;
char buf[1024];
char *bufptr,
*offset;
gtk_init(&argc,&argv);
daemon(0, 1);
if ( (fd = open(VOLUME_NODE, O_RDONLY)) == -1 ) {
perror("open");
exit(1);
}
if ( (fd_brightness = open(BRIGHTNESS_NODE, O_RDONLY)) == -1 ) {
perror("could not open brightness stuff");
printf("ignoring...\n");
}
if ( (fd_new_brightness = open(BRIGHTNESS_NEW_NODE, O_RDONLY)) == -1 ) {
perror("could not open new brightness stuff");
printf("ignoring...\n");
}
for (;;) {
usleep(SLEEP_MICROSECONDS);
/* VOLUME STUFF */
if ( (nread = read(fd, buf, 1024)) > 1) {
lseek(fd, 0, SEEK_SET);
buf[nread] = NULL;
bufptr = buf;
offset = strchr(bufptr, '\n');
if (offset != NULL) {
for (; !isdigit(*bufptr) && (*bufptr != NULL); bufptr++);
if (*bufptr == NULL) {
printf("crap occured\n");
continue;
}
volume = g_ascii_strtoull(bufptr, NULL, 10);
for (offset++; (*offset != 'o') && (*offset != NULL); offset++);
if (*offset == NULL) {
printf("more crap occured\n");
continue;
}
(*(offset + 1) == 'n') ? (mute = 1) : (mute = 0);
show_notify_volume(volume, mute);
}
}
/* BRIGHTNESS STUFF */
if ( fd_brightness != -1 )
{
if ( (nread = read(fd_brightness, buf, 1024)) > 1) {
lseek(fd_brightness, 0, SEEK_SET);
buf[nread] = NULL;
bufptr = buf;
for (; !isdigit(*bufptr) && (*bufptr != NULL); bufptr++);
if (*bufptr == NULL) {
printf("brightness crap occured\n");
continue;
}
brightness = g_ascii_strtoull(bufptr, NULL, 10);
show_notify_brightness(brightness*14);
}
}
/* NEW BRIGHTNESS STUFF */
if ( fd_new_brightness != -1 )
{
if ( (nread = read(fd_new_brightness, buf, 1024)) > 1) {
lseek(fd_new_brightness, 0, SEEK_SET);
buf[nread] = NULL;
bufptr = strchr(buf, '\n');
if (bufptr != NULL) {
for (; !isdigit(*bufptr) && (*bufptr != NULL); bufptr++);
if (*bufptr == NULL) {
printf("brightness new crap occured\n");
continue;
}
brightness = g_ascii_strtoull(bufptr, NULL, 10);
show_notify_brightness(brightness);
}
}
}
}
//close(fd);
//close(fd_brightness);
return 0;
}
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