| #ifndef _ASM_X8664_HPET_H |
| #define _ASM_X8664_HPET_H 1 |
| |
| /* |
| * Documentation on HPET can be found at: |
| * http://www.intel.com/ial/home/sp/pcmmspec.htm |
| * ftp://download.intel.com/ial/home/sp/mmts098.pdf |
| */ |
| |
| #define HPET_MMAP_SIZE 1024 |
| |
| #define HPET_ID 0x000 |
| #define HPET_PERIOD 0x004 |
| #define HPET_CFG 0x010 |
| #define HPET_STATUS 0x020 |
| #define HPET_COUNTER 0x0f0 |
| #define HPET_Tn_OFFSET 0x20 |
| #define HPET_Tn_CFG(n) (0x100 + (n) * HPET_Tn_OFFSET) |
| #define HPET_Tn_ROUTE(n) (0x104 + (n) * HPET_Tn_OFFSET) |
| #define HPET_Tn_CMP(n) (0x108 + (n) * HPET_Tn_OFFSET) |
| #define HPET_T0_CFG HPET_Tn_CFG(0) |
| #define HPET_T0_CMP HPET_Tn_CMP(0) |
| #define HPET_T1_CFG HPET_Tn_CFG(1) |
| #define HPET_T1_CMP HPET_Tn_CMP(1) |
| |
| #define HPET_ID_VENDOR 0xffff0000 |
| #define HPET_ID_LEGSUP 0x00008000 |
| #define HPET_ID_64BIT 0x00002000 |
| #define HPET_ID_NUMBER 0x00001f00 |
| #define HPET_ID_REV 0x000000ff |
| #define HPET_ID_NUMBER_SHIFT 8 |
| |
| #define HPET_ID_VENDOR_SHIFT 16 |
| #define HPET_ID_VENDOR_8086 0x8086 |
| |
| #define HPET_CFG_ENABLE 0x001 |
| #define HPET_CFG_LEGACY 0x002 |
| #define HPET_LEGACY_8254 2 |
| #define HPET_LEGACY_RTC 8 |
| |
| #define HPET_TN_LEVEL 0x0002 |
| #define HPET_TN_ENABLE 0x0004 |
| #define HPET_TN_PERIODIC 0x0008 |
| #define HPET_TN_PERIODIC_CAP 0x0010 |
| #define HPET_TN_64BIT_CAP 0x0020 |
| #define HPET_TN_SETVAL 0x0040 |
| #define HPET_TN_32BIT 0x0100 |
| #define HPET_TN_ROUTE 0x3e00 |
| #define HPET_TN_FSB 0x4000 |
| #define HPET_TN_FSB_CAP 0x8000 |
| |
| #define HPET_TN_ROUTE_SHIFT 9 |
| |
| #define HPET_TICK_RATE (HZ * 100000UL) |
| |
| extern int is_hpet_enabled(void); |
| extern int hpet_rtc_timer_init(void); |
| extern int apic_is_clustered_box(void); |
| extern int hpet_arch_init(void); |
| extern int hpet_timer_stop_set_go(unsigned long tick); |
| extern int hpet_reenable(void); |
| extern unsigned int hpet_calibrate_tsc(void); |
| |
| extern int hpet_use_timer; |
| extern unsigned long hpet_address; |
| extern unsigned long hpet_period; |
| extern unsigned long hpet_tick; |
| |
| #ifdef CONFIG_HPET_EMULATE_RTC |
| extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask); |
| extern int hpet_set_rtc_irq_bit(unsigned long bit_mask); |
| extern int hpet_set_alarm_time(unsigned char hrs, unsigned char min, unsigned char sec); |
| extern int hpet_set_periodic_freq(unsigned long freq); |
| extern int hpet_rtc_dropped_irq(void); |
| extern int hpet_rtc_timer_init(void); |
| #endif /* CONFIG_HPET_EMULATE_RTC */ |
| |
| #endif |
