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feat: pit and sleep, and new bootloader
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,233 +1,79 @@ | ||
| /** | ||
| * @file boot.h | ||
| * @author ajxs | ||
| * @date Aug 2019 | ||
| * @brief Boot functionality. | ||
| * Contains definitions for boot structures. | ||
| */ | ||
|
|
||
| #pragma once | ||
| #ifndef __STIVALE__STIVALE_H__ | ||
| #define __STIVALE__STIVALE_H__ | ||
|
|
||
| #include <stdint.h> | ||
|
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| extern "C" | ||
| { | ||
| /** | ||
| * @brief Memory region descriptor. | ||
| * Describes a region of memory. This is passed to the kernel by the bootloader. | ||
| */ | ||
| namespace boot { | ||
|
|
||
| typedef struct { | ||
| uint16_t year; // 1998 - 20XX | ||
| uint8_t month; // 1 - 12 | ||
| uint8_t day; // 1 - 31 | ||
| uint8_t hour; // 0 - 23 | ||
| uint8_t ninute; // 0 - 59 | ||
| uint8_t second; // 0 - 59 | ||
| uint8_t pad1; | ||
| uint32_t nanosecond; // 0 - 999,999,999 | ||
| int16_t timezone; // -1440 to 1440 or 2047 | ||
| uint8_t daylight; | ||
| uint8_t pad2; | ||
| } efi_time; | ||
|
|
||
| typedef struct { | ||
| uint32_t resolution; // 1e-6 parts per million | ||
| uint32_t accuracy; // hertz | ||
| int sets_to_zero; // Set clears sub-second time | ||
| } efi_time_capabillities; | ||
|
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| #define efi_api __attribute__((ms_abi)) | ||
|
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| typedef struct s_memory_region_desc { | ||
| uint32_t type; | ||
| uintptr_t physical_start; | ||
| uintptr_t virtual_start; | ||
| uint64_t count; | ||
| uint64_t attributes; | ||
| } memory_map_descriptor; | ||
|
|
||
| typedef struct { | ||
| uint32_t data1; | ||
| uint16_t data2; | ||
| uint16_t data3; | ||
| uint8_t data4[8]; | ||
| } efi_guid; | ||
|
|
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| typedef struct { | ||
| efi_guid capsule_guid; | ||
| uint32_t header_size; | ||
| uint32_t flags; | ||
| uint32_t capsule_image_size; | ||
| } efi_capsule_header; | ||
|
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| typedef enum { | ||
| efi_reset_cold, | ||
| efi_reset_warm, | ||
| efi_reset_shutdown | ||
| } efi_reset_type; | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_get_time) ( | ||
| efi_time *time, | ||
| efi_time_capabillities *capabilities | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_set_time) ( | ||
| efi_time *time); | ||
|
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| typedef | ||
| uint64_t | ||
| (efi_api *efi_get_wakeup_time) ( | ||
| int *enabled, | ||
| int *pending, | ||
| efi_time *time | ||
| ); | ||
|
|
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| typedef | ||
| uint64_t | ||
| (efi_api *efi_set_wakeup_time) ( | ||
| int enable, | ||
| efi_time *time | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_set_virtual_address_map) ( | ||
| uint64_t memory_map_size, | ||
| uint64_t descriptor_size, | ||
| uint64_t descriptor_version, | ||
| memory_map_descriptor *virtual_map | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_convert_pointer) ( | ||
| uint64_t debug_disposition, | ||
| void **address | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_get_variable) ( | ||
| uint16_t *variable_name, | ||
| efi_guid *vendor_guid, | ||
| uint32_t *attribute, | ||
| uint64_t *data_size, | ||
| void *data | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_get_next_variable_name) ( | ||
| uint64_t *variable_name_size, | ||
| uint16_t *variable_name, | ||
| efi_guid *vendor_guid | ||
| ); | ||
|
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||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_set_variable) ( | ||
| uint16_t *variable_name, | ||
| efi_guid *vendor_guid, | ||
| uint32_t attributes, | ||
| uint64_t data_size, | ||
| void *data | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_get_next_high_mono_count) ( | ||
| uint32_t *high_count | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_reset_system) ( | ||
| efi_reset_type reset_type, | ||
| uint64_t reset_status, | ||
| uint64_t data_size, | ||
| uint16_t *reset_data | ||
| ); | ||
|
|
||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_update_capsule) ( | ||
| efi_capsule_header **capsule_header_array, | ||
| uint64_t capsule_count, | ||
| int scatter_gather_list | ||
| ); | ||
|
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||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_query_capsule_capabilities) ( | ||
| efi_capsule_header **capsule_header_array, | ||
| uint64_t capsule_count, | ||
| uint64_t *maximum_capsule_size, | ||
| efi_reset_type *reset_type | ||
| ); | ||
|
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||
| typedef | ||
| uint64_t | ||
| (efi_api *efi_query_variable_info) ( | ||
| uint32_t attributes, | ||
| uint64_t *maximum_variable_storage_size, | ||
| uint64_t *remaining_variable_storage_size, | ||
| uint64_t *maximum_variable_size | ||
| ); | ||
|
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| typedef struct s_efi_table_header { | ||
| uint64_t signature; | ||
| uint32_t rev; | ||
| uint32_t size; | ||
| uint32_t crc; | ||
| uint32_t reserved; | ||
| } efi_table_header; | ||
|
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| typedef struct s_efi_runtime_service_handle { | ||
| efi_table_header header; | ||
| efi_get_time get_time; | ||
| efi_set_time set_time; | ||
| efi_get_wakeup_time get_wakeup_time; | ||
| efi_set_wakeup_time set_wakeup_time; | ||
| efi_set_virtual_address_map set_virtual_address_map; | ||
| efi_convert_pointer convert_pointer; | ||
| efi_get_variable get_variable; | ||
| efi_get_next_variable_name get_next_variable_name; | ||
| efi_set_variable set_variable; | ||
| efi_get_next_high_mono_count get_next_high_monotonic_count; | ||
| efi_reset_system reset_system; | ||
| efi_update_capsule update_capsule; | ||
| efi_query_capsule_capabilities query_capsule_capabilities; | ||
| efi_query_variable_info query_variable_info; | ||
| } efi_runtime_services; | ||
|
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| extern efi_runtime_services *uefi; | ||
|
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| typedef struct s_framebuffer { | ||
| uint32_t *framebuffer_base; | ||
| uint64_t framebuffer_size; | ||
| uint32_t framebuffer_mode; | ||
| uint32_t x_resolution; | ||
| uint32_t y_resolution; | ||
| uint32_t pixels_per_scan_line; | ||
| } gop_framebuffer; | ||
|
|
||
| /** | ||
| * @brief Boot info struct. | ||
| * Contains information passed to the kernel at boot time by the bootloader. | ||
| */ | ||
| typedef struct s_boot_info { | ||
| uint64_t verification; | ||
| gop_framebuffer *vbe_framebuffer; | ||
| memory_map_descriptor *memory_map; | ||
| uint64_t mmap_size; | ||
| uint64_t mmap_descriptor_size; | ||
| efi_runtime_services *runtime_services; | ||
| } boot_info; | ||
| } | ||
| } | ||
| /* --- Header --------------------------------------------------------------- */ | ||
| /* Information passed from the kernel to the bootloader */ | ||
|
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|
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|
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| struct stivale_header { | ||
| uint64_t stack; | ||
| uint16_t flags; | ||
| uint16_t framebuffer_width; | ||
| uint16_t framebuffer_height; | ||
| uint16_t framebuffer_bpp; | ||
| uint64_t entry_point; | ||
| } __attribute__((__packed__)); | ||
|
|
||
| /* --- Struct --------------------------------------------------------------- */ | ||
| /* Information passed from the bootloader to the kernel */ | ||
|
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| struct stivale_module { | ||
| uint64_t begin; | ||
| uint64_t end; | ||
| char string[128]; | ||
| uint64_t next; | ||
| } __attribute__((__packed__)); | ||
|
|
||
| #define STIVALE_MMAP_USABLE 1 | ||
| #define STIVALE_MMAP_RESERVED 2 | ||
| #define STIVALE_MMAP_ACPI_RECLAIMABLE 3 | ||
| #define STIVALE_MMAP_ACPI_NVS 4 | ||
| #define STIVALE_MMAP_BAD_MEMORY 5 | ||
| #define STIVALE_MMAP_KERNEL_AND_MODULES 10 | ||
| #define STIVALE_MMAP_BOOTLOADER_RECLAIMABLE 0x1000 | ||
|
|
||
| struct stivale_mmap_entry { | ||
| uint64_t base; | ||
| uint64_t length; | ||
| uint32_t type; | ||
| uint32_t unused; | ||
| } __attribute__((__packed__)); | ||
|
|
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| struct stivale_framebuffer { | ||
| uint64_t framebuffer_addr; | ||
| uint16_t framebuffer_pitch; | ||
| uint16_t framebuffer_width; | ||
| uint16_t framebuffer_height; | ||
| uint16_t framebuffer_bpp; | ||
| } __attribute__((__packed__)); | ||
|
|
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| struct stivale_memory_map { | ||
| uint64_t memory_map_addr; | ||
| uint64_t memory_map_entries; | ||
| } __attribute__((__packed__)); | ||
|
|
||
| #define STIVALE_FBUF_MMODEL_RGB 1 | ||
|
|
||
| struct stivale_struct { | ||
| uint64_t cmdline; | ||
| stivale_memory_map memory_map; | ||
| stivale_framebuffer framebuffer; | ||
| uint64_t rsdp; | ||
| uint64_t module_count; | ||
| uint64_t modules; | ||
| uint64_t epoch; | ||
| uint64_t flags; // bit 0: 1 if booted with BIOS, 0 if booted with UEFI | ||
| // bit 1: 1 if extended colour information passed, 0 if not | ||
| uint8_t fb_memory_model; | ||
| uint8_t fb_red_mask_size; | ||
| uint8_t fb_red_mask_shift; | ||
| uint8_t fb_green_mask_size; | ||
| uint8_t fb_green_mask_shift; | ||
| uint8_t fb_blue_mask_size; | ||
| uint8_t fb_blue_mask_shift; | ||
| } __attribute__((__packed__)); | ||
|
|
||
| #endif |
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