source: mainline/kernel/genarch/include/drivers/s3c24xx_timer/s3c24xx_timer.h@ 41ce4d9

/*
 * Copyright (c) 2010 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup genarch
 * @{
 */
/**
 * @file
 * @brief Samsung S3C24xx on-chip PWM timer driver.
 */

#ifndef KERN_S3C24XX_TIMER_H_
#define KERN_S3C24XX_TIMER_H_

#include <typedefs.h>

/** Physical address where S3C24XX on-chip PWM timer is mapped */
#define S3C24XX_TIMER_ADDRESS   0x51000000

/** S3C24xx on-chip PWM timer registers */
typedef struct {
        ioport32_t tcfg0;       /**< Timer configuration register 0 */
        ioport32_t tcfg1;       /**< Timer configuration register 1 */
        ioport32_t tcon;        /**< Timer control register */

        struct {
                ioport32_t cntb;        /**< Count buffer register */
                ioport32_t cmpb;        /**< Compare buffer register */
                ioport32_t cnto;        /**< Count observation register */
        } timer[5];
} s3c24xx_timer_t;

/** Bits in the S3C24xx PWM timer TCON register. */
enum s3c24xx_tcon_bits {
        TCON_T0_START           = (1 << 0),     /**< Timer 0 start */
        TCON_T0_MUPDATE         = (1 << 1),     /**< Timer 0 manual update */
        TCON_T0_INVERT          = (1 << 2),     /**< Timer 0 inverter on */
        TCON_T0_AUTO_RLD        = (1 << 3),     /**< Timer 0 auto reload */

        TCON_DEAD_ZONE          = (1 << 4),     /**< Dead zone enable */

        TCON_T1_START           = (1 << 8),     /**< Timer 1 start */
        TCON_T1_MUPDATE         = (1 << 9),     /**< Timer 1 manual update */
        TCON_T1_INVERT          = (1 << 10),    /**< Timer 1 inverter on */
        TCON_T1_AUTO_RLD        = (1 << 11),    /**< Timer 1 auto reload */

        TCON_T2_START           = (1 << 12),    /**< Timer 2 start */
        TCON_T2_MUPDATE         = (1 << 13),    /**< Timer 2 manual update */
        TCON_T2_INVERT          = (1 << 14),    /**< Timer 2 inverter on */
        TCON_T2_AUTO_RLD        = (1 << 15),    /**< Timer 2 auto reload */

        TCON_T3_START           = (1 << 16),    /**< Timer 3 start */
        TCON_T3_MUPDATE         = (1 << 17),    /**< Timer 3 manual update */
        TCON_T3_INVERT          = (1 << 18),    /**< Timer 3 inverter on */
        TCON_T3_AUTO_RLD        = (1 << 19),    /**< Timer 3 auto reload */

        TCON_T4_START           = (1 << 20),    /**< Timer 4 start */
        TCON_T4_MUPDATE         = (1 << 21),    /**< Timer 4 manual update */
        TCON_T4_AUTO_RLD        = (1 << 22)     /**< Timer 4 auto reload */
};

#endif

/** @}
 */