root / hw / hpet_emul.h @ 32993698
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/*
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* QEMU Emulated HPET support
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*
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* Copyright IBM, Corp. 2008
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*
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* Authors:
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* Beth Kon <bkon@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_HPET_EMUL_H
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#define QEMU_HPET_EMUL_H
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#define HPET_BASE 0xfed00000 |
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#define HPET_CLK_PERIOD 10000000ULL /* 10000000 femtoseconds == 10ns*/ |
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#define FS_PER_NS 1000000 |
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#define HPET_MIN_TIMERS 3 |
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#define HPET_MAX_TIMERS 32 |
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#define HPET_NUM_IRQ_ROUTES 32 |
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#define HPET_CFG_ENABLE 0x001 |
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#define HPET_CFG_LEGACY 0x002 |
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#define HPET_ID 0x000 |
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#define HPET_PERIOD 0x004 |
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#define HPET_CFG 0x010 |
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#define HPET_STATUS 0x020 |
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#define HPET_COUNTER 0x0f0 |
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#define HPET_TN_CFG 0x000 |
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#define HPET_TN_CMP 0x008 |
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#define HPET_TN_ROUTE 0x010 |
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#define HPET_CFG_WRITE_MASK 0x3 |
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#define HPET_ID_NUM_TIM_SHIFT 8 |
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#define HPET_ID_NUM_TIM_MASK 0x1f00 |
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#define HPET_TN_TYPE_LEVEL 0x002 |
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#define HPET_TN_ENABLE 0x004 |
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#define HPET_TN_PERIODIC 0x008 |
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#define HPET_TN_PERIODIC_CAP 0x010 |
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#define HPET_TN_SIZE_CAP 0x020 |
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#define HPET_TN_SETVAL 0x040 |
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#define HPET_TN_32BIT 0x100 |
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#define HPET_TN_INT_ROUTE_MASK 0x3e00 |
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#define HPET_TN_FSB_ENABLE 0x4000 |
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#define HPET_TN_FSB_CAP 0x8000 |
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#define HPET_TN_CFG_WRITE_MASK 0x7f4e |
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#define HPET_TN_INT_ROUTE_SHIFT 9 |
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#define HPET_TN_INT_ROUTE_CAP_SHIFT 32 |
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#define HPET_TN_CFG_BITS_READONLY_OR_RESERVED 0xffff80b1U |
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struct hpet_fw_entry
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{ |
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uint32_t event_timer_block_id; |
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uint64_t address; |
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uint16_t min_tick; |
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uint8_t page_prot; |
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} __attribute__ ((packed)); |
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struct hpet_fw_config
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{ |
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uint8_t count; |
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struct hpet_fw_entry hpet[8]; |
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} __attribute__ ((packed)); |
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extern struct hpet_fw_config hpet_cfg; |
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#endif
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