822557eb8e
Register the HPET as a sysbus device and create it that way. As it can route its IRQs to any ISA IRQ, we need to connect it to all 24 of them. Once converted to qdev, we can move reset handler and vmstate registration into its hands as well. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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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_NUM_TIMERS 3
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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_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_CFG_WRITE_MASK 0x3f4e
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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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#if defined TARGET_I386
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extern uint32_t hpet_in_legacy_mode(void);
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#endif
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#endif
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