Started rewrite

2 files changed, 0 insertions, 281 deletions

diff --git a/src/kernel/acpi/acpi.c b/src/kernel/acpi/acpi.c
deleted file mode 100644
index 6e1811c..0000000
--- a/src/kernel/acpi/acpi.c
+++ /dev/null
@@ -1,112 +0,0 @@
-// Important specification: https://uefi.org/sites/default/files/resources/ACPI_6_2.pdf
-// HPET: https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/software-developers-hpet-spec-1-0a.pdf
-
-#include <acpi/acpi.h>
-#include <io/io.h>
-#include <lib/lib.h>
-#include <lib/stdio.h>
-#include <lib/stdlib.h>
-#include <memory/alloc.h>
-#include <memory/paging.h>
-#include <multiboot.h>
-#include <stddef.h>
-#include <system.h>
-
-struct rsdt *rsdt;
-struct fadt *fadt;
-struct hpet *hpet;
-struct madt *madt;
-
-int check_sum(struct sdt_header *header)
-{
-	u8 sum = 0;
-
-	for (u32 i = 0; i < header->length; i++)
-		sum += ((char *)header)[i];
-
-	return sum == 0;
-}
-
-void acpi_init(struct rsdp *rsdp)
-{
-	// TODO: Fix ACPI table discovering (HPET & MADT missing)
-	// TODO: Fix ACPI breaking VESA (why?!)
-
-	struct sdt_header *header = (struct sdt_header *)malloc(sizeof(struct sdt_header));
-	rsdt = (struct rsdt *)malloc(sizeof(struct rsdt));
-	fadt = (struct fadt *)malloc(sizeof(struct fadt));
-	hpet = (struct hpet *)malloc(sizeof(struct hpet));
-	madt = (struct madt *)malloc(sizeof(struct madt));
-
-	if (strncmp(rsdp->signature, "RSD PTR ", 8) == 0) {
-		memcpy(rsdt, rsdp->rsdt_address, sizeof(struct rsdt) + 32);
-		debug("Found RSDT");
-		if (!check_sum((struct sdt_header *)rsdt)) {
-			warn("Corrupted RSDT!");
-		} else {
-			u32 *pointer = (u32 *)(rsdt + 1);
-			u32 *end = (u32 *)((u8 *)rsdt + rsdt->header.length);
-
-			while (pointer < end) {
-				u32 address = *pointer++;
-				memcpy(header, (void *)address, sizeof(struct sdt_header));
-
-				if (strncmp(header->signature, "FACP", 4) == 0) {
-					debug("Found FADT");
-					memcpy(fadt, (void *)address, sizeof(struct fadt));
-					if (!check_sum((struct sdt_header *)fadt))
-						warn("Corrupted FADT!");
-				} else if (strncmp(header->signature, "HPET", 4) == 0) {
-					debug("Found HPET");
-					memcpy(hpet, (void *)address, sizeof(struct hpet));
-					if (!check_sum((struct sdt_header *)hpet))
-						warn("Corrupted HPET!");
-				} else if (strncmp(header->signature, "APIC", 4) == 0) {
-					debug("Found MADT");
-					memcpy(madt, (void *)address, sizeof(struct madt));
-					if (!check_sum((struct sdt_header *)madt))
-						warn("Corrupted MADT!");
-				}
-			}
-		}
-	} else {
-		warn("Wrong RSD signature!");
-	}
-	free(header);
-}
-
-void acpi_old_init(struct multiboot_tag_old_acpi *tag)
-{
-	// acpi_init((struct rsdp *)tag->rsdp);
-}
-
-void acpi_new_init(struct multiboot_tag_new_acpi *tag)
-{
-	// acpi_init((struct rsdp *)tag->rsdp);
-}
-
-void acpi_poweroff()
-{
-	// TODO: Add APCI poweroff support
-	cli();
-	outw(0x604, 0x2000); // QEMU
-	outw(0xB004, 0x2000); // Bochs
-	outw(0x4004, 0x3400); // VirtualBox
-	halt_loop();
-}
-
-void reboot()
-{
-	cli();
-	if (fadt->header.revision >= 2 && fadt->flags.reset_support) {
-		debug("Reset support!");
-		outb(fadt->reset_reg.address, fadt->reset_value);
-		halt_loop();
-	} else {
-		u8 good = 0x02;
-		while (good & 0x02)
-			good = inb(0x64);
-		outb(0x64, 0xFE);
-		halt_loop();
-	}
-}
\ No newline at end of file
diff --git a/src/kernel/acpi/acpi.h b/src/kernel/acpi/acpi.h
deleted file mode 100644
index 9b64f7c..0000000
--- a/src/kernel/acpi/acpi.h
+++ /dev/null
@@ -1,169 +0,0 @@
-#ifndef MELVIX_ACPI_H
-#define MELVIX_ACPI_H
-
-#include <multiboot.h>
-#include <stdint.h>
-
-/**
- * Initialize the ACP interface
- */
-void acpi_old_init(struct multiboot_tag_old_acpi *tag);
-void acpi_new_init(struct multiboot_tag_new_acpi *tag);
-
-/**
- * Activate a ACPI based device reboot
- */
-void reboot();
-
-/**
- * Activate a ACPI based device shutdown/poweroff
- */
-void acpi_poweroff();
-
-struct address_structure {
-	u8 address_space_id;
-	u8 register_bit_width;
-	u8 register_bit_offset;
-	u8 reserved;
-	u64 address;
-};
-
-// p. 138
-struct fadt_flags {
-	u8 WBINVD : 1;
-	u8 WBINVD_flush : 1;
-	u8 C1_support : 1;
-	u8 C2_mp_support : 1;
-	u8 power_button : 1; // 1 if not present
-	u8 sleep_button : 1; // 1 if not present
-	u8 rtc_fix_reg : 1;
-	u8 rtc_wakes_S4 : 1;
-	u8 timer_32 : 1;
-	u8 dock_support : 1;
-	u8 reset_support : 1;
-	u8 sealed_case : 1;
-	u8 headless : 1;
-	u8 slp_instruction : 1;
-	u8 pci_wake_support : 1;
-	u8 use_platform_clock : 1;
-	u8 rtc_valid_S4 : 1;
-	u8 remote_on_support : 1;
-	u8 force_apic_cluster : 1;
-	u8 force_apic_physical : 1;
-	u8 hw_reduced_acpi : 1;
-	u8 low_power_S0_support : 1;
-	u16 reserved : 10;
-};
-
-struct rsdp {
-	char signature[8];
-	char checksum;
-	char oem_id[6];
-	char revision;
-	u32 *rsdt_address;
-};
-
-struct sdt_header {
-	char signature[4];
-	u32 length;
-	u8 revision;
-	u8 checksum;
-	char oem_id[6];
-	char oem_table_id[8];
-	u32 oem_revision;
-	u32 creator_id;
-	u32 creator_revision;
-};
-
-struct rsdt {
-	struct sdt_header header;
-	u32 sdt_pointer[];
-};
-
-struct xsdt {
-	struct sdt_header header;
-	u32 sdt_pointer[];
-};
-
-struct fadt {
-	struct sdt_header header;
-	u32 firmware_ctl;
-	u32 dsdt;
-	u8 reserved;
-	u8 preferred_power_management;
-	u16 sci_interrupt;
-	u32 smi_commandPort;
-	u8 acpi_enable;
-	u8 acpi_disable;
-	u8 S4BIOS_req;
-	u8 PSTATE_control;
-	u32 PM1a_event_block;
-	u32 PM1b_event_block;
-	u32 PM1a_control_block;
-	u32 PM1b_control_block;
-	u32 PM2_control_block;
-	u32 PM_timer_block;
-	u32 GPE0_block;
-	u32 GPE1_block;
-	u8 PM1_event_length;
-	u8 PM1_control_length;
-	u8 PM2_control_length;
-	u8 PM_timer_length;
-	u8 GPE0_length;
-	u8 GPE1_length;
-	u8 GPE1_base;
-	u8 C_state_control;
-	u16 worst_C2_latency;
-	u16 worst_C3_latency;
-	u16 flush_size;
-	u16 flush_stride;
-	u8 duty_offset;
-	u8 duty_width;
-	u8 day_alarm;
-	u8 month_alarm;
-	u8 century;
-	u16 boot_architecture_flags; // Reserved in 1.0
-	u8 reserved2;
-	struct fadt_flags flags;
-	struct address_structure reset_reg;
-	u8 reset_value;
-	u8 reserved3[3];
-	u64 x_firmware_control; // Reserved in 1.0
-	u64 x_dsdt; // Reserved in 1.0
-	struct address_structure x_PM1a_event_block;
-	struct address_structure x_PM1b_event_block;
-	struct address_structure x_PM1a_control_block;
-	struct address_structure x_PM1b_control_block;
-	struct address_structure x_PM2_control_block;
-	struct address_structure x_PM_timer_block;
-	struct address_structure x_GPE0_block;
-	struct address_structure x_GPE1_block;
-};
-
-struct hpet {
-	struct sdt_header header;
-	u8 hardware_rev_id;
-	u8 comparator_count : 5;
-	u8 counter_size : 1;
-	u8 reserved : 1;
-	u8 legacy_replacement : 1;
-	u16 pci_vendor_id;
-	struct address_structure address;
-	u8 hpet_number;
-	u16 minimum_tick;
-	u8 page_protection;
-};
-
-struct madt {
-	struct sdt_header header;
-	u32 address;
-	u32 flags;
-	// Interrupt devices...
-};
-
-struct rsdt *rsdt;
-struct fadt *fadt;
-struct hpet *hpet;
-struct madt *madt;
-
-#endif
\ No newline at end of file