acpi_rsdp_validate(acpi_rsdp_t* rsdp);
acpi_rsdp_t*
-acpi_locate_rsdp(multiboot_info_t* mb_info);
+acpi_locate_rsdp();
int
-acpi_init(multiboot_info_t* mb_info)
+acpi_init()
{
- acpi_rsdp_t* rsdp = acpi_locate_rsdp(mb_info);
+ acpi_rsdp_t* rsdp = acpi_locate_rsdp();
assert_msg(rsdp, "Fail to locate ACPI_RSDP");
assert_msg(acpi_rsdp_validate(rsdp), "Invalid ACPI_RSDP (checksum failed)");
(acpi_sdthdr_t*)((acpi_apic_t**)&(rsdt->entry))[i];
switch (sdthdr->signature) {
case ACPI_MADT_SIG:
- kprintf(KINFO "MADT: %p\n", sdthdr);
madt_parse((acpi_madt_t*)sdthdr, ctx);
break;
case ACPI_FADT_SIG:
// FADT just a plain structure, no need to parse.
- kprintf(KINFO "FADT: %p\n", sdthdr);
ctx->fadt = *(acpi_fadt_t*)sdthdr;
break;
case ACPI_MCFG_SIG:
- kprintf(KINFO "MCFG: %p\n", sdthdr);
mcfg_parse(sdthdr, ctx);
break;
default:
}
}
- kprintf(KINFO "ACPI: %s\n", ctx->oem_id);
-
return 0;
}
}
u8_t
-acpi_gistranslate(u8_t old_irq)
+acpi_gsimap(u8_t old_irq)
{
if (old_irq >= 24) {
return old_irq;
#define VIRTUAL_BOX_PROBLEM
acpi_rsdp_t*
-acpi_locate_rsdp(multiboot_info_t* mb_info)
+acpi_locate_rsdp()
{
acpi_rsdp_t* rsdp = NULL;
- // You can't trust memory map from multiboot in virtual box!
- // They put ACPI RSDP in the FUCKING 0xe0000 !!!
- // Which is reported to be free area bt multiboot!
- // SWEET CELESTIA!!!
-#ifndef VIRTUAL_BOX_PROBLEM
- multiboot_memory_map_t* mmap = (multiboot_memory_map_t*)mb_info->mmap_addr;
- for (size_t i = 0, j = 0; j < mb_info->mmap_length && !rsdp;
- i++, j += MB_MMAP_ENTRY_SIZE) {
- multiboot_memory_map_t entry = mmap[i];
- if (entry.type != MULTIBOOT_MEMORY_RESERVED ||
- entry.addr_low > 0x100000) {
- continue;
- }
-
- u8_t* mem_start = entry.addr_low & ~0xf;
- size_t len = entry.len_low;
- for (size_t j = 0; j < len; j += 16) {
- u32_t sig_low = *((u32_t*)(mem_start + j));
- // u32_t sig_high = *((u32_t*)(mem_start+j) + 1);
- if (sig_low == ACPI_RSDP_SIG_L) {
- rsdp = (acpi_rsdp_t*)(mem_start + j);
- break;
- }
- }
- }
-#else
- // You know what, I just search the entire 1MiB for Celestia's sake.
ptr_t mem_start = 0x4000;
for (; mem_start < 0x100000; mem_start += 16) {
u32_t sig_low = *((u32_t*)mem_start);
break;
}
}
-#endif
return rsdp;
}
\ No newline at end of file