/* * 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_MIN_TIMERS 3 #define HPET_MAX_TIMERS 32 #define HPET_NUM_IRQ_ROUTES 32 #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; } __attribute__ ((packed)); struct hpet_fw_config { uint8_t count; struct hpet_fw_entry hpet[8]; } __attribute__ ((packed)); extern struct hpet_fw_config hpet_cfg; #endif