| /* |
| * 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 |
| |
| #include "qom/object.h" |
| |
| #define HPET_BASE 0xfed00000 |
| #define HPET_LEN 0x400 |
| #define HPET_CLK_PERIOD 10 /* 10 ns*/ |
| |
| #define FS_PER_NS 1000000 /* 1000000 femtoseconds == 1 ns */ |
| #define HPET_MIN_TIMERS 3 |
| #define HPET_MAX_TIMERS 32 |
| |
| #define HPET_NUM_IRQ_ROUTES 32 |
| |
| #define HPET_LEGACY_PIT_INT 0 |
| #define HPET_LEGACY_RTC_INT 1 |
| |
| #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_ID_NUM_TIM_SHIFT 8 |
| #define HPET_ID_NUM_TIM_MASK 0x1f00 |
| |
| #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_FSB_ENABLE 0x4000 |
| #define HPET_TN_FSB_CAP 0x8000 |
| #define HPET_TN_CFG_WRITE_MASK 0x7f4e |
| #define HPET_TN_INT_ROUTE_SHIFT 9 |
| #define HPET_TN_INT_ROUTE_CAP_SHIFT 32 |
| #define HPET_TN_CFG_BITS_READONLY_OR_RESERVED 0xffff80b1U |
| |
| struct hpet_fw_entry |
| { |
| uint32_t event_timer_block_id; |
| uint64_t address; |
| uint16_t min_tick; |
| uint8_t page_prot; |
| } QEMU_PACKED; |
| |
| struct hpet_fw_config |
| { |
| uint8_t count; |
| struct hpet_fw_entry hpet[8]; |
| } QEMU_PACKED; |
| |
| extern struct hpet_fw_config hpet_cfg; |
| |
| #define TYPE_HPET "hpet" |
| |
| static inline bool hpet_find(void) |
| { |
| return object_resolve_path_type("", TYPE_HPET, NULL); |
| } |
| |
| #endif |