Subversion Repositories test_project

#ifndef __HPET__

#define __HPET__ 1

#include <linux/compiler.h>

#ifdef __KERNEL__

/*

 * Offsets into HPET Registers

 */

struct hpet {

        u64 hpet_cap;           /* capabilities */

        u64 res0;               /* reserved */

        u64 hpet_config;        /* configuration */

        u64 res1;               /* reserved */

        u64 hpet_isr;           /* interrupt status reg */

        u64 res2[25];           /* reserved */

        union {                 /* main counter */

                u64 _hpet_mc64;

                u32 _hpet_mc32;

                unsigned long _hpet_mc;

        } _u0;

        u64 res3;               /* reserved */

        struct hpet_timer {

                u64 hpet_config;        /* configuration/cap */

                union {         /* timer compare register */

                        u64 _hpet_hc64;

                        u32 _hpet_hc32;

                        unsigned long _hpet_compare;

                } _u1;

                u64 hpet_fsb[2];        /* FSB route */

        } hpet_timers[1];

};

#define hpet_mc         _u0._hpet_mc

#define hpet_compare    _u1._hpet_compare

#define HPET_MAX_TIMERS (32)

/*

 * HPET general capabilities register

 */

#define HPET_COUNTER_CLK_PERIOD_MASK    (0xffffffff00000000ULL)

#define HPET_COUNTER_CLK_PERIOD_SHIFT   (32UL)

#define HPET_VENDOR_ID_MASK             (0x00000000ffff0000ULL)

#define HPET_VENDOR_ID_SHIFT            (16ULL)

#define HPET_LEG_RT_CAP_MASK            (0x8000)

#define HPET_COUNTER_SIZE_MASK          (0x2000)

#define HPET_NUM_TIM_CAP_MASK           (0x1f00)

#define HPET_NUM_TIM_CAP_SHIFT          (8ULL)

/*

 * HPET general configuration register

 */

#define HPET_LEG_RT_CNF_MASK            (2UL)

#define HPET_ENABLE_CNF_MASK            (1UL)

/*

 * Timer configuration register

 */

#define Tn_INT_ROUTE_CAP_MASK           (0xffffffff00000000ULL)

#define Tn_INI_ROUTE_CAP_SHIFT          (32UL)

#define Tn_FSB_INT_DELCAP_MASK          (0x8000UL)

#define Tn_FSB_INT_DELCAP_SHIFT         (15)

#define Tn_FSB_EN_CNF_MASK              (0x4000UL)

#define Tn_FSB_EN_CNF_SHIFT             (14)

#define Tn_INT_ROUTE_CNF_MASK           (0x3e00UL)

#define Tn_INT_ROUTE_CNF_SHIFT          (9)

#define Tn_32MODE_CNF_MASK              (0x0100UL)

#define Tn_VAL_SET_CNF_MASK             (0x0040UL)

#define Tn_SIZE_CAP_MASK                (0x0020UL)

#define Tn_PER_INT_CAP_MASK             (0x0010UL)

#define Tn_TYPE_CNF_MASK                (0x0008UL)

#define Tn_INT_ENB_CNF_MASK             (0x0004UL)

#define Tn_INT_TYPE_CNF_MASK            (0x0002UL)

/*

 * Timer FSB Interrupt Route Register

 */

#define Tn_FSB_INT_ADDR_MASK            (0xffffffff00000000ULL)

#define Tn_FSB_INT_ADDR_SHIFT           (32UL)

#define Tn_FSB_INT_VAL_MASK             (0x00000000ffffffffULL)

/*

 * exported interfaces

 */

struct hpet_task {

        void (*ht_func) (void *);

        void *ht_data;

        void *ht_opaque;

};

struct hpet_data {

        unsigned long hd_phys_address;

        void __iomem *hd_address;

        unsigned short hd_nirqs;

        unsigned short hd_flags;

        unsigned int hd_state;  /* timer allocated */

        unsigned int hd_irq[HPET_MAX_TIMERS];

};

#define HPET_DATA_PLATFORM      0x0001  /* platform call to hpet_alloc */

static inline void hpet_reserve_timer(struct hpet_data *hd, int timer)

{

        hd->hd_state |= (1 << timer);

        return;

}

int hpet_alloc(struct hpet_data *);

int hpet_register(struct hpet_task *, int);

int hpet_unregister(struct hpet_task *);

int hpet_control(struct hpet_task *, unsigned int, unsigned long);

#endif /* __KERNEL__ */

struct hpet_info {

        unsigned long hi_ireqfreq;      /* Hz */

        unsigned long hi_flags; /* information */

        unsigned short hi_hpet;

        unsigned short hi_timer;

};

#define HPET_INFO_PERIODIC      0x0001  /* timer is periodic */

#define HPET_IE_ON      _IO('h', 0x01)  /* interrupt on */

#define HPET_IE_OFF     _IO('h', 0x02)  /* interrupt off */

#define HPET_INFO       _IOR('h', 0x03, struct hpet_info)

#define HPET_EPI        _IO('h', 0x04)  /* enable periodic */

#define HPET_DPI        _IO('h', 0x05)  /* disable periodic */

#define HPET_IRQFREQ    _IOW('h', 0x6, unsigned long)   /* IRQFREQ usec */

#endif                          /* !__HPET__ */