git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_X8664_HPET_H |
| 2 | #define _ASM_X8664_HPET_H 1 | |
| 3 | ||
| 4 | /* | |
| 5 | * Documentation on HPET can be found at: | |
| 6 | * http://www.intel.com/ial/home/sp/pcmmspec.htm | |
| 7 | * ftp://download.intel.com/ial/home/sp/mmts098.pdf | |
| 8 | */ | |
| 9 | ||
| 10 | #define HPET_MMAP_SIZE 1024 | |
| 11 | ||
| 12 | #define HPET_ID 0x000 | |
| 13 | #define HPET_PERIOD 0x004 | |
| 14 | #define HPET_CFG 0x010 | |
| 15 | #define HPET_STATUS 0x020 | |
| 16 | #define HPET_COUNTER 0x0f0 | |
| 979edfad JB |
17 | #define HPET_Tn_OFFSET 0x20 |
| 18 | #define HPET_Tn_CFG(n) (0x100 + (n) * HPET_Tn_OFFSET) | |
| 19 | #define HPET_Tn_ROUTE(n) (0x104 + (n) * HPET_Tn_OFFSET) | |
| 20 | #define HPET_Tn_CMP(n) (0x108 + (n) * HPET_Tn_OFFSET) | |
| 21 | #define HPET_T0_CFG HPET_Tn_CFG(0) | |
| 22 | #define HPET_T0_CMP HPET_Tn_CMP(0) | |
| 23 | #define HPET_T1_CFG HPET_Tn_CFG(1) | |
| 24 | #define HPET_T1_CMP HPET_Tn_CMP(1) | |
| 1da177e4 LT |
25 | |
| 26 | #define HPET_ID_VENDOR 0xffff0000 | |
| 27 | #define HPET_ID_LEGSUP 0x00008000 | |
| 979edfad | 28 | #define HPET_ID_64BIT 0x00002000 |
| 1da177e4 LT |
29 | #define HPET_ID_NUMBER 0x00001f00 |
| 30 | #define HPET_ID_REV 0x000000ff | |
| 31 | #define HPET_ID_NUMBER_SHIFT 8 | |
| 32 | ||
| 33 | #define HPET_ID_VENDOR_SHIFT 16 | |
| 34 | #define HPET_ID_VENDOR_8086 0x8086 | |
| 35 | ||
| 36 | #define HPET_CFG_ENABLE 0x001 | |
| 37 | #define HPET_CFG_LEGACY 0x002 | |
| 38 | #define HPET_LEGACY_8254 2 | |
| 39 | #define HPET_LEGACY_RTC 8 | |
| 40 | ||
| 979edfad JB |
41 | #define HPET_TN_LEVEL 0x0002 |
| 42 | #define HPET_TN_ENABLE 0x0004 | |
| 43 | #define HPET_TN_PERIODIC 0x0008 | |
| 44 | #define HPET_TN_PERIODIC_CAP 0x0010 | |
| 45 | #define HPET_TN_64BIT_CAP 0x0020 | |
| 46 | #define HPET_TN_SETVAL 0x0040 | |
| 47 | #define HPET_TN_32BIT 0x0100 | |
| 48 | #define HPET_TN_ROUTE 0x3e00 | |
| 49 | #define HPET_TN_FSB 0x4000 | |
| 50 | #define HPET_TN_FSB_CAP 0x8000 | |
| 51 | ||
| 52 | #define HPET_TN_ROUTE_SHIFT 9 | |
| 1da177e4 | 53 | |
| b20367a6 JH |
54 | #define HPET_TICK_RATE (HZ * 100000UL) |
| 55 | ||
| 1da177e4 LT |
56 | extern int is_hpet_enabled(void); |
| 57 | extern int hpet_rtc_timer_init(void); | |
| c37e7bb5 JS |
58 | extern int hpet_arch_init(void); |
| 59 | extern int hpet_timer_stop_set_go(unsigned long tick); | |
| 60 | extern int hpet_reenable(void); | |
| 61 | extern unsigned int hpet_calibrate_tsc(void); | |
| 1da177e4 | 62 | |
| 33042a9f | 63 | extern int hpet_use_timer; |
| 2d0c87c3 | 64 | extern unsigned long hpet_address; |
| c37e7bb5 JS |
65 | extern unsigned long hpet_period; |
| 66 | extern unsigned long hpet_tick; | |
| 33042a9f | 67 | |
| 1da177e4 LT |
68 | #ifdef CONFIG_HPET_EMULATE_RTC |
| 69 | extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask); | |
| 70 | extern int hpet_set_rtc_irq_bit(unsigned long bit_mask); | |
| 71 | extern int hpet_set_alarm_time(unsigned char hrs, unsigned char min, unsigned char sec); | |
| 72 | extern int hpet_set_periodic_freq(unsigned long freq); | |
| 73 | extern int hpet_rtc_dropped_irq(void); | |
| 74 | extern int hpet_rtc_timer_init(void); | |
| 75 | #endif /* CONFIG_HPET_EMULATE_RTC */ | |
| 76 | ||
| 77 | #endif |