Haiku/haiku
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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33316 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2009-09-27 08:50:42 +00:00
parent df3a6fbd86
commit 3cafc2ec3e
1 changed files with 13 additions and 14 deletions
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27
headers/private/kernel/arch/x86/arch_hpet.h
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@ -11,14 +11,14 @@
/* Doing it this way is Required since the HPET only supports 32/64-bit aligned reads. */
/* Global Capability Register Masks */
#define HPET_CAP_MASK_ID 0x000000FFL
#define HPET_CAP_MASK_REVID 0x000000FFL
#define HPET_CAP_MASK_NUMTIMERS 0x00001F00L
#define HPET_CAP_MASK_WIDTH 0x00002000L
#define HPET_CAP_MASK_LEGACY 0x00008000L
#define HPET_CAP_MASK_VENDOR_ID 0xFFFF0000L
/* Retrieve Global Capabilities */
#define HPET_GET_ID(regs) ((regs)->capability & HPET_CAP_MASK_ID)
#define HPET_GET_REVID(regs) ((regs)->capability & HPET_CAP_MASK_REVID)
#define HPET_GET_NUM_TIMERS(regs) (((regs)->capability & HPET_CAP_MASK_NUMTIMERS) >> 8)
#define HPET_IS_64BIT(regs) (((regs)->capability & HPET_CAP_MASK_WIDTH) >> 13)
#define HPET_IS_LEGACY_CAPABLE(regs) (((regs)->capability & HPET_CAP_MASK_LEGACY) >> 15)
@ -35,18 +35,18 @@
#define ACPI_HPET_SIGNATURE "HPET"
struct hpet_timer {
/* Timer Configuration/Capability bits, Reversed because x86 is LSB */
/* Timer Configuration/Capability bits, Reversed because x86 is LSB */
volatile uint32 config;
volatile uint32 interrupts; /* Each bit represents one allowed interrupt for this timer. */
/* Read Only. If interrupt 16 is allowed, bit 16 will be 1. */
volatile uint32 interrupts; /* R/W: Each bit represents one allowed interrupt for this timer. */
/* If interrupt 16 is allowed, bit 16 will be 1. */
volatile uint64 comparator; /* Comparator value */
volatile uint64 comparator; /* R/W: Comparator value */
/* non-periodic mode: fires once when main counter = this comparator */
/* periodic mode: fires when timer reaches this value, is increased by the original value */
/* FSB Interrupt Route values */
volatile uint32 fsb_value;
volatile uint32 fsb_addr; /* Where fsb_value should be written */
volatile uint32 fsb_value; /* R/W: FSB Interrupt Route values */
volatile uint32 fsb_addr; /* R/W: Where fsb_value should be written */
volatile uint64 reserved;
};
@ -54,13 +54,12 @@ struct hpet_timer {
struct hpet_regs {
/* Capability bits */
volatile uint32 capability; /* Capabilities */
volatile uint32 period;
volatile uint32 capability; /* Read Only: Capabilities */
volatile uint32 period; /* Read Only: Period */
volatile uint64 reserved1;
/* Config Bits */
volatile uint64 config;
volatile uint64 config; /* R/W: Config Bits */
volatile uint64 reserved2;
@ -72,7 +71,7 @@ struct hpet_regs {
volatile uint8 reserved3[200];
volatile uint64 counter;
volatile uint64 counter; /* R/W */
volatile uint64 reserved4;