hpet.c File Reference

(29312b1 fbconsole, panic: render panic after framebuffer was given to userspace - without clearing screen contents)

#include <log.h>
#include <hpet.h>
#include <string.h>
#include <vm.h>

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Data Structures
struct	hpet_mmio
struct	hpet_acpi_table

Functions
struct hpet_mmio	__attribute__ ((packed))
void	init_hpet (struct acpi_table_header *header)
void	sc_handle_clock_read (uint64_t *nanoseconds)

Variables
uint64_t	rev_id
uint64_t	num_tim_cap
uint64_t	count_size_cap
uint64_t	_reserved
uint64_t	leg_route_cap
uint64_t	vendor_id
uint64_t	counter_clk_period
struct acpi_table_header	header
uint8_t	hardware_revision
uint8_t	num_comparators
uint8_t	legacy_replacement_irq_cap
uint16_t	pci_vendor_id
struct acpi_address	base_address
uint8_t	hpet_number
uint16_t	main_counter_minimum_clock_tick
uint8_t	page_protection
uint8_t	oem
static struct hpet_mmio *	hpet
static uint64_t	initialization_ticks = 0
static uint16_t	ticks_to_ns_multiplier = 1

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Data Structure Documentation

hpet_acpi_table

struct hpet_acpi_table

Definition at line 81 of file hpet.c.

Collaboration diagram for hpet_acpi_table:

Data Fields
uint8_t	_reserved: 1
struct acpi_address	base_address
uint8_t	count_size_cap: 1
uint8_t	hardware_revision
struct acpi_table_header	header
uint8_t	hpet_number
uint8_t	legacy_replacement_irq_cap: 1
uint16_t	main_counter_minimum_clock_tick
uint8_t	num_comparators: 5
uint8_t	oem: 4
uint8_t	page_protection: 4
uint16_t	pci_vendor_id

Function Documentation

__attribute__()

struct hpet_mmio __attribute__

(

(packed)

)

Definition at line 28 of file hpet.c.

References _reserved1.

init_hpet()

void init_hpet

(

struct acpi_table_header *

header

)

Definition at line 104 of file hpet.c.

References acpi_address_space_memory, acpi_address::address, acpi_address::address_space, ALLOCATOR_REGION_SLAB_4K, hpet_acpi_table::base_address, hpet_acpi_table::hardware_revision, header, hpet, initialization_ticks, logd, loge, logi, hpet_acpi_table::num_comparators, hpet_acpi_table::pci_vendor_id, ticks_to_ns_multiplier, vm_context_find_free(), vm_context_map(), and VM_KERNEL_CONTEXT.

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sc_handle_clock_read()

void sc_handle_clock_read

(

uint64_t *

nanoseconds

)

Definition at line 141 of file hpet.c.

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Variable Documentation

_reserved

uint8_t _reserved

Definition at line 23 of file hpet.c.

base_address

struct acpi_address base_address

Definition at line 9 of file hpet.c.

count_size_cap

uint8_t count_size_cap

Definition at line 22 of file hpet.c.

counter_clk_period

uint64_t counter_clk_period

Definition at line 28 of file hpet.c.

hardware_revision

uint8_t hardware_revision

Definition at line 2 of file hpet.c.

header

struct acpi_table_header header

Definition at line 0 of file hpet.c.

hpet

struct hpet_mmio* hpet

static

Definition at line 99 of file hpet.c.

hpet_number

uint8_t hpet_number

Definition at line 10 of file hpet.c.

initialization_ticks

uint64_t initialization_ticks = 0

static

Definition at line 101 of file hpet.c.

leg_route_cap

uint64_t leg_route_cap

Definition at line 24 of file hpet.c.

legacy_replacement_irq_cap

uint8_t legacy_replacement_irq_cap

Definition at line 6 of file hpet.c.

main_counter_minimum_clock_tick

uint16_t main_counter_minimum_clock_tick

Definition at line 11 of file hpet.c.

num_comparators

uint8_t num_comparators

Definition at line 3 of file hpet.c.

num_tim_cap

uint64_t num_tim_cap

Definition at line 21 of file hpet.c.

oem

uint8_t oem

Definition at line 14 of file hpet.c.

page_protection

uint8_t page_protection

Definition at line 13 of file hpet.c.

pci_vendor_id

uint16_t pci_vendor_id

Definition at line 7 of file hpet.c.

rev_id

uint64_t rev_id

Definition at line 19 of file hpet.c.

ticks_to_ns_multiplier

uint16_t ticks_to_ns_multiplier = 1

static

Definition at line 102 of file hpet.c.

vendor_id

uint64_t vendor_id

Definition at line 26 of file hpet.c.