diff options
Diffstat (limited to 'sys/firmware/acpi/acpi_init.c')
-rw-r--r-- | sys/firmware/acpi/acpi_init.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/sys/firmware/acpi/acpi_init.c b/sys/firmware/acpi/acpi_init.c deleted file mode 100644 index a98e429..0000000 --- a/sys/firmware/acpi/acpi_init.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <firmware/acpi/acpi.h> -#include <sys/limine.h> -#include <sys/syslog.h> -#include <sys/cdefs.h> -#include <sys/panic.h> -#include <sys/syslog.h> -#include <vm/vm.h> - -__MODULE_NAME("acpi"); -__KERNEL_META("$Hyra$: acpi_init.c, Ian Marco Moffett, " - "ACPI init logic"); - -#define pr_trace(fmt, ...) kprintf("acpi: " fmt, ##__VA_ARGS__) - -static volatile struct limine_rsdp_request rsdp_req = { - .id = LIMINE_RSDP_REQUEST, - .revision = 0 -}; - -static size_t root_sdt_entries = 0; -static bool using_xsdt = false; -static struct acpi_root_sdt *root_sdt = NULL; - -/* - * Writes out OEMID of ACPI header. - * - * @type: Type of structure (e.g RSDP) - * @hdr: Header of structure. - */ -static void -acpi_print_oemid(const char *type, char oemid[OEMID_SIZE]) -{ - if (type != NULL) { - pr_trace("%s OEMID: ", type); - } - - for (size_t i = 0; i < OEMID_SIZE; ++i) { - kprintf(OMIT_TIMESTAMP "%c", oemid[i]); - } - kprintf(OMIT_TIMESTAMP "\n"); -} - -struct acpi_root_sdt * -acpi_get_root_sdt(void) -{ - return root_sdt; -} - -size_t -acpi_get_root_sdt_len(void) -{ - return root_sdt_entries; -} - -void -acpi_init(void) -{ - struct acpi_rsdp *rsdp; - - /* Can't do anything if we have no response! */ - if (rsdp_req.response == NULL) { - panic("RSDP request has no response affiliated...\n"); - } - - /* Fetch the RSDP */ - rsdp = rsdp_req.response->address; - acpi_print_oemid("RSDP", rsdp->oemid); - - /* Fetch the RSDT/XSDT */ - if (rsdp->revision >= 2) { - using_xsdt = true; - root_sdt = PHYS_TO_VIRT(rsdp->xsdt_addr); - 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"); - } - if (!acpi_is_checksum_valid(&root_sdt->hdr)) { - panic("Root SDT has an invalid checksum!\n"); - } - root_sdt_entries = (root_sdt->hdr.length - sizeof(root_sdt->hdr)) / 4; -} |