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/*! @file addon-acpi-buttons-toshiba.c
* @brief Toshiba SMM Button Addon
* @author Richard Hughes <richard@hughsie.com>
* @date 2005-10-15
*
* @note Low level routines from IAL, Copyright (C) 2004, 2005
* Timo Hoenig <thoenig@nouse.net>
*/
/*
* Licensed under the GNU General Public License Version 2
*
* 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; either version 2
* of the License, or (at your option) any later version.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAL_LINUX_INPUT_HEADER_H
#include HAL_LINUX_INPUT_HEADER_H
else
#include <linux/input.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <glib/gmain.h>
#include "libhal/libhal.h"
#include "../../logger.h"
/** Toshiba ACPI key interface */
#define TOSHIBA_ACPI_KEYS "/proc/acpi/toshiba/keys"
/** Polling frequency in ms */
#define TOSHIBA_POLL_FREQ 250
static LibHalContext *ctx = NULL;
static char* udi;
/**
* toshiba_key_flush:
*
* Flush keys from the Toshiba hotkey register
*/
static void
toshiba_key_flush (void)
{
int hotkey_ready = 1;
int value;
FILE *fp = fopen (TOSHIBA_ACPI_KEYS, "r+");
if (!fp) {
HAL_DEBUG (("Could not open %s!", TOSHIBA_ACPI_KEYS));
return;
}
while (hotkey_ready) {
fprintf (fp, "hotkey_ready:0\n");
fclose (fp);
fp = fopen (TOSHIBA_ACPI_KEYS, "r+");
if (fscanf (fp, "hotkey_ready: %d\nhotkey: 0x%4x", &hotkey_ready, &value) < 2)
HAL_WARNING(("Warning: failure while parse %s", TOSHIBA_ACPI_KEYS));
}
if (fp)
fclose (fp);
}
/**
* toshiba_key_ready:
* @value: The key id pressed, passed by reference
*
* Returns: TRUE if there is an event pending, FALSE if no event pending.
*
* Check whether there is a new event in the hotkey register
*/
static gboolean
toshiba_key_ready (int *value)
{
FILE *fp = fopen (TOSHIBA_ACPI_KEYS, "r+");
int hotkey_ready = -1;
if (!fp)
return FALSE;
if (fscanf (fp, "hotkey_ready: %1d\nhotkey: 0x%4x", &hotkey_ready, value) < 2)
HAL_WARNING (("Warning: failure while parse %s", TOSHIBA_ACPI_KEYS));
if (hotkey_ready) {
fprintf (fp, "hotkey_ready:0\n");
fclose (fp);
return TRUE;
}
fclose (fp);
return FALSE;
}
/**
* toshiba_key_poll:
*
* Returns: TRUE on success, else FALSE.
*
* Callback to poll hotkey register and report occuring events.
*/
static gboolean
toshiba_key_poll (void)
{
char *result;
int value;
DBusError error;
dbus_error_init (&error);
/* for each key */
while (toshiba_key_ready (&value) == TRUE) {
result = NULL;
if (value == 0x101) /* FnESC */
result = "mute";
else if (value == 0x13b) /* FnF1 */
result = "lock";
else if (value == 0x13c) /* FnF2 */
result = "search";
else if (value == 0x13d) /* FnF3 */
result = "suspend";
else if (value == 0x13e) /* FnF4 */
result = "hibernate";
else if (value == 0x140) /* FnF6 */
result = "brightness-down";
else if (value == 0x141) /* FnF7 */
result = "brightness-up";
else if (value == 0x142) /* FnF8 */
result = "wifi-power";
if (result) {
HAL_DEBUG (("Sending condition '%s'", result));
libhal_device_emit_condition (ctx, udi, "ButtonPressed", result, &error);
if (dbus_error_is_set (&error)) {
HAL_ERROR (("Failed to send condition: %s", error.message));
dbus_error_free (&error);
return FALSE;
}
}
}
return TRUE;
}
/* Main program */
int
main (int argc, char **argv)
{
GMainLoop *loop = NULL;
DBusError error;
FILE *fp;
setup_logger ();
udi = getenv ("UDI");
if (udi == NULL) {
HAL_ERROR (("Failed to get UDI"));
return 1;
}
dbus_error_init (&error);
if ((ctx = libhal_ctx_init_direct (&error)) == NULL) {
HAL_ERROR (("Unable to initialise libhal context: %s", error.message));
return 1;
}
dbus_error_init (&error);
if (!libhal_device_addon_is_ready (ctx, udi, &error)) {
return 1;
}
/* Check for Toshiba ACPI interface /proc/acpi/toshiba/keys */
fp = fopen (TOSHIBA_ACPI_KEYS, "r+");
if (!fp) {
HAL_ERROR (("Could not open %s! Aborting.", TOSHIBA_ACPI_KEYS));
return 0;
}
fclose (fp);
/* Flush keys as we may have some already in buffer */
toshiba_key_flush ();
/* Get the new input */
g_timeout_add (TOSHIBA_POLL_FREQ, (GSourceFunc) toshiba_key_poll, NULL);
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
return 0;
}
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