brightness.h

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/***************************************************************************
 *                                                                         *
 *                         Powersave Daemon                                *
 *                                                                         *
 *          Copyright (C) 2004,2005 SUSE Linux Products GmbH               *
 *                                                                         *
 *               Author(s): Timo Hoenig <thoenig@suse.de>                  *
 *                                                                         *
 * 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 you   *
 * 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 St, Fifth Floor, Boston, MA 02110-1301 USA                  *
 *                                                                         *
 ***************************************************************************/

#ifndef POWERSAVE_BRIGHTNESS_H
#define POWERSAVE_BRIGHTNESS_H

#define PANASONIC_BRIGHTNESS_INTERFACE_IS_DOG_SLOW

#define ACPI_ASUS      "/proc/acpi/asus/brn"
#define ACPI_IBM       "/proc/acpi/ibm/brightness"
#define ACPI_SONY      "/proc/acpi/sony/brightness"
#define ACPI_TOSHIBA   "/proc/acpi/toshiba/lcd"
#define ACPI_PANASONIC "/proc/acpi/panasonic/"
#define LCD_OMNIBOOK   "/proc/omnibook/lcd"
#define DEV_PMU        "/dev/pmu"

/* merge #include "powersaved.h" */

class Brightness {
      protected:
        const char *iface;
        int fd;
        int last_percent;
        int PercentToLevel(int);

      public:
         virtual ~ Brightness();
        static Brightness *Probe();

        virtual void Init();

        virtual int Get();
        virtual void Set(int);
        int GetPercent();
        void SetPercent(int);

        /* those are driver-dependent, since e.g. setting the brightness
           to zero actually might switch the display off which might not
           be exactly what you want */
        virtual void Min();
        virtual void Med();

        /* those are generic */
        void Max();
        void Up();
        void Down();

        virtual int GetLevels();
};

class BrightnessASUS:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

class BrightnessIBM:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

class BrightnessSony:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

class BrightnessToshiba:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

class BrightnessPanasonic:public Brightness {
      protected:
#ifndef PANASONIC_BRIGHTNESS_INTERFACE_IS_DOG_SLOW
        char *iface_dc;
#endif
        int brt_max, brt_min, brt_scale;

      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};
#endif                          /* POWERSAVE_BRIGHTNESS_H */

class BrightnessOmnibook:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

class BrightnessPMU:public Brightness {
      public:
        void Init();

        int Get();
        void Set(int);

        void Min();
        void Med();

        int GetLevels();
};

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