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/*
* QEMU Emulated HPET support
*
* Copyright IBM, Corp. 2008
*
* Authors:
* Beth Kon <bkon@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#ifndef QEMU_HPET_EMUL_H
#define QEMU_HPET_EMUL_H
#define HPET_BASE 0xfed00000
#define HPET_CLK_PERIOD 10000000ULL /* 10000000 femtoseconds == 10ns*/
#define FS_PER_NS 1000000
#define HPET_NUM_TIMERS 3
#define HPET_CFG_ENABLE 0x001
#define HPET_CFG_LEGACY 0x002
#define HPET_ID 0x000
#define HPET_PERIOD 0x004
#define HPET_CFG 0x010
#define HPET_STATUS 0x020
#define HPET_COUNTER 0x0f0
#define HPET_TN_CFG 0x000
#define HPET_TN_CMP 0x008
#define HPET_TN_ROUTE 0x010
#define HPET_CFG_WRITE_MASK 0x3
#define HPET_TN_TYPE_LEVEL 0x002
#define HPET_TN_ENABLE 0x004
#define HPET_TN_PERIODIC 0x008
#define HPET_TN_PERIODIC_CAP 0x010
#define HPET_TN_SIZE_CAP 0x020
#define HPET_TN_SETVAL 0x040
#define HPET_TN_32BIT 0x100
#define HPET_TN_INT_ROUTE_MASK 0x3e00
#define HPET_TN_CFG_WRITE_MASK 0x3f4e
#define HPET_TN_INT_ROUTE_SHIFT 9
#define HPET_TN_INT_ROUTE_CAP_SHIFT 32
#define HPET_TN_CFG_BITS_READONLY_OR_RESERVED 0xffff80b1U
#if defined TARGET_I386
extern uint32_t hpet_in_legacy_mode(void);
extern void hpet_init(qemu_irq *irq);
#endif
#endif
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