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Code Issues Releases Wiki Activity

🆕 创建了acpi模块

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This commit is contained in:
fslongjin
2022-03-13 00:31:46 +08:00
parent 574f323284
commit e64be7b4df
7 changed files with 280 additions and 17 deletions
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54
kernel/driver/multiboot2/multiboot2.c
View File

@ -2,16 +2,17 @@
#include "assert.h"
#include "../../common/glib.h"
#include"../../common/kprint.h"
uintptr_t boot_info_addr;
unsigned int multiboot2_magic;
unsigned int boot_info_size;
bool multiboot2_init(void)
{
uintptr_t *addr = (uintptr_t*)boot_info_addr;
if(multiboot2_magic != MULTIBOOT2_BOOTLOADER_MAGIC);
return false;
uintptr_t *addr = (uintptr_t *)boot_info_addr;
if (multiboot2_magic != MULTIBOOT2_BOOTLOADER_MAGIC)
;
return false;
// addr+0 处保存了大小
boot_info_size = *(unsigned int *)addr;
return true;
@ -20,12 +21,14 @@ bool multiboot2_init(void)
void multiboot2_iter(bool (*_fun)(const struct iter_data_t *, void *, unsigned int *),
void *data, unsigned int *count)
{
uintptr_t addr = boot_info_addr;
// 下一字节开始为 tag 信息
struct iter_data_t *tag = (struct iter_data_t *)(addr + 8);
for (; tag->type != MULTIBOOT_TAG_TYPE_END;
tag = (struct iter_data_t *)((uint8_t *)tag + ALIGN(tag->size, 8)))
{
if (_fun(tag, data, count) == true)
{
return;
@ -73,13 +76,13 @@ bool multiboot2_get_memory(const struct iter_data_t *_iter_data, void *data, uns
/**
* @brief 获取VBE信息
*
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data 返回信息的结构体指针
*/
bool multiboot2_get_VBE_info(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved)
{
if (_iter_data->type != MULTIBOOT_TAG_TYPE_VBE)
return false;
*(struct multiboot_tag_vbe_t *)data = *(struct multiboot_tag_vbe_t *)_iter_data;
@ -88,14 +91,47 @@ bool multiboot2_get_VBE_info(const struct iter_data_t *_iter_data, void *data, u
/**
* @brief 获取帧缓冲区信息
*
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data 返回信息的结构体指针
*/
bool multiboot2_get_Framebuffer_info(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved)
{
if(_iter_data->type !=MULTIBOOT_TAG_TYPE_FRAMEBUFFER)
if (_iter_data->type != MULTIBOOT_TAG_TYPE_FRAMEBUFFER)
return false;
*(struct multiboot_tag_framebuffer_info_t *)data = *(struct multiboot_tag_framebuffer_info_t*)_iter_data;
*(struct multiboot_tag_framebuffer_info_t *)data = *(struct multiboot_tag_framebuffer_info_t *)_iter_data;
return true;
}
/**
* @brief 获取acpi旧版RSDP
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data old RSDP的结构体指针
* @param reserved
* @return uint8_t* struct multiboot_tag_old_acpi_t
*/
bool multiboot2_get_acpi_old_RSDP(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved)
{
if (_iter_data->type != MULTIBOOT_TAG_TYPE_ACPI_OLD)
return false;
kdebug("xxx=%#018lx",((struct multiboot_tag_old_acpi_t *)_iter_data)->rsdp);
*(struct multiboot_tag_old_acpi_t *)data = *(struct multiboot_tag_old_acpi_t *)_iter_data;
return true;
}
/**
* @brief 获取acpi新版RSDP
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data old RSDP的结构体指针
* @param reserved
* @return uint8_t* struct multiboot_tag_old_acpi_t
*/
bool multiboot2_get_acpi_new_RSDP(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved)
{
if (_iter_data->type != MULTIBOOT_TAG_TYPE_ACPI_NEW)
return false;
*(struct multiboot_tag_new_acpi_t *)data = *(struct multiboot_tag_new_acpi_t *)_iter_data;
return true;
}

22
kernel/driver/multiboot2/multiboot2.h
View File

@ -447,4 +447,24 @@ bool multiboot2_get_VBE_info(const struct iter_data_t *_iter_data, void *_data,
* @param _iter_data 要被迭代的信息的结构体
* @param _data 返回信息的结构体指针
*/
bool multiboot2_get_Framebuffer_info(const struct iter_data_t *_iter_data, void *_data, unsigned int *reserved);
bool multiboot2_get_Framebuffer_info(const struct iter_data_t *_iter_data, void *_data, unsigned int *reserved);
/**
* @brief 获取acpi旧版RSDP
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data old RSDP的结构体指针
* @param reserved
* @return uint8_t*
*/
bool multiboot2_get_acpi_old_RSDP(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved);
/**
* @brief 获取acpi新版RSDP
*
* @param _iter_data 要被迭代的信息的结构体
* @param _data old RSDP的结构体指针
* @param reserved
* @return uint8_t* struct multiboot_tag_old_acpi_t
*/
bool multiboot2_get_acpi_new_RSDP(const struct iter_data_t *_iter_data, void *data, unsigned int *reserved);