diff options
Diffstat (limited to 'sys/dev/acpi/acpi_init.c')
| -rw-r--r-- | sys/dev/acpi/acpi_init.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/sys/dev/acpi/acpi_init.c b/sys/dev/acpi/acpi_init.c index 448c522..67eed29 100644 --- a/sys/dev/acpi/acpi_init.c +++ b/sys/dev/acpi/acpi_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -36,14 +36,17 @@ #include <dev/acpi/acpivar.h> #include <dev/pci/pci.h> #include <vm/vm.h> +#include <string.h> #if defined(__x86_64__) #include <machine/hpet.h> #endif /* __x86_64__ */ #define pr_trace(fmt, ...) kprintf("acpi: " fmt, ##__VA_ARGS__) +static char oemid[OEMID_SIZE]; static struct acpi_root_sdt *root_sdt = NULL; static size_t root_sdt_entries = 0; +static paddr_t rsdp_pa = 0; static volatile struct limine_rsdp_request rsdp_req = { .id = LIMINE_RSDP_REQUEST, .revision = 0 @@ -54,7 +57,7 @@ acpi_init_hpet(void) { #if defined(__x86_64__) if (hpet_init() != 0) { - panic("Could not init HPET\n"); + panic("could not init HPET\n"); } #endif } @@ -91,6 +94,18 @@ acpi_get_root_sdt_len(void) return root_sdt_entries; } +const char * +acpi_oemid(void) +{ + return oemid; +} + +paddr_t +acpi_rsdp(void) +{ + return rsdp_pa; +} + void acpi_init(void) { @@ -103,18 +118,20 @@ acpi_init(void) /* Fetch the RSDP */ rsdp = rsdp_req.response->address; acpi_print_oemid("RSDP", rsdp->oemid); + memcpy(oemid, rsdp->oemid, OEMID_SIZE); + rsdp_pa = VIRT_TO_PHYS(rsdp); /* Fetch the root SDT */ if (rsdp->revision >= 2) { root_sdt = PHYS_TO_VIRT(rsdp->xsdt_addr); - pr_trace("Using XSDT as root SDT\n"); + pr_trace("using XSDT as root SDT\n"); } else { root_sdt = PHYS_TO_VIRT(rsdp->rsdt_addr); - pr_trace("Using RSDT as root SDT\n"); + pr_trace("using RSDT as root SDT\n"); } if (acpi_checksum(&root_sdt->hdr) != 0) { - panic("Root SDT checksum is invalid!\n"); + panic("root SDT checksum is invalid!\n"); } root_sdt_entries = (root_sdt->hdr.length - sizeof(root_sdt->hdr)) / 4; |