8 files changed, 213 insertions, 0 deletions
diff --git a/kernel/include/arch/i686/acpi.h b/kernel/include/arch/i686/acpi.h
new file mode 100644
index 0000000..bb35010
--- /dev/null
+++ b/kernel/include/arch/i686/acpi.h
@@ -0,0 +1,106 @@
+#pragma once
+
+#include <stdint.h>
+
+struct RootSystemDescriptionPointer {
+    char signature[8];
+    uint8_t checksum;
+    char oemid[6];
+    uint8_t revision;
+    uint32_t rsdt_address;
+};
+
+struct SystemDescriptionTableHeader {
+    char signature[4];
+    uint32_t length;
+    uint8_t revision;
+    uint8_t checksum;
+    char oem_id[6];
+    char oem_table_id[8];
+    uint32_t oem_revision;
+    uint32_t creator_id;
+    uint32_t creator_revision;
+};
+
+struct RootSystemDescriptionTable {
+    struct SystemDescriptionTableHeader header;
+    uint32_t sdt_table[];
+};
+
+struct GenericAddressStructure {
+    uint8_t address_space;
+    uint8_t bit_width;
+    uint8_t bit_offset;
+    uint8_t access_size;
+    uint64_t address;
+};
+
+struct FixedACPIDescriptionTable {
+    struct SystemDescriptionTableHeader header;
+    uint32_t firmware_ctrl;
+    uint32_t dsdt;
+ 
+    // field used in ACPI 1.0; no longer in use, for compatibility only
+    uint8_t  reserved;
+ 
+    uint8_t  preferred_power_management_profile;
+    uint16_t sci_interrupt;
+    uint32_t smi_command_port;
+    uint8_t  acpi_enable;
+    uint8_t  acpi_disable;
+    uint8_t  s4bios_req;
+    uint8_t  pstate_control;
+    uint32_t pm1_a_event_block;
+    uint32_t pm1_b_event_block;
+    uint32_t pm1_a_control_block;
+    uint32_t pm1_b_control_block;
+    uint32_t pm2_control_block;
+    uint32_t pm_timer_block;
+    uint32_t gpe0_block;
+    uint32_t gpe1_block;
+    uint8_t  pm1_event_length;
+    uint8_t  pm1_control_length;
+    uint8_t  pm2_control_length;
+    uint8_t  pm_timer_length;
+    uint8_t  gpe0_length;
+    uint8_t  gpe1_length;
+    uint8_t  gpe1_base;
+    uint8_t  cstate_control;
+    uint16_t worst_c2_latency;
+    uint16_t worst_c3_latency;
+    uint16_t flush_size;
+    uint16_t flush_stride;
+    uint8_t  duty_offset;
+    uint8_t  duty_width;
+    uint8_t  day_alarm;
+    uint8_t  month_alarm;
+    uint8_t  century;
+ 
+    // reserved in ACPI 1.0; used since ACPI 2.0+
+    uint16_t boot_architecture_flags;
+ 
+    uint8_t  reserved_2;
+    uint32_t flags;
+ 
+    // 12 byte structure; see below for details
+    struct GenericAddressStructure reset_reg;
+ 
+    uint8_t  reset_value;
+    uint8_t  reserved_3[3];
+ 
+    // 64bit pointers - Available on ACPI 2.0+
+    uint64_t x_firmware_control;
+    uint64_t x_dsdt;
+ 
+    struct GenericAddressStructure x_pm1_a_event_block;
+    struct GenericAddressStructure x_pm1_b_event_block;
+    struct GenericAddressStructure x_pm1_a_control_block;
+    struct GenericAddressStructure x_pm1_b_control_block;
+    struct GenericAddressStructure x_pm2_control_block;
+    struct GenericAddressStructure x_pm_timer_block;
+    struct GenericAddressStructure x_gpe0_block;
+    struct GenericAddressStructure x_gpe1_block;
+};
+
+void acpi_init(void *rsdp);
+void acpi_poweroff(void);
diff --git a/kernel/include/arch/i686/asm.h b/kernel/include/arch/i686/asm.h
new file mode 100644
index 0000000..0e2d9db
--- /dev/null
+++ b/kernel/include/arch/i686/asm.h
@@ -0,0 +1,13 @@
+#include <stdint.h>
+
+extern uint8_t inb(uint16_t port);
+extern void outb(uint16_t port, uint8_t val);
+extern uint16_t inw(uint16_t port);
+extern void outw(uint16_t port, uint16_t val);
+extern uint32_t inl(uint16_t port);
+extern void outl(uint16_t port, uint32_t val);
+extern void io_wait(void);
+extern void int_enable(void);
+extern void int_disable(void);
+extern void int_wait(void);
+extern void halt(void);
diff --git a/kernel/include/arch/i686/drivers/ps2ctrl.h b/kernel/include/arch/i686/drivers/ps2ctrl.h
new file mode 100644
index 0000000..a674c57
--- /dev/null
+++ b/kernel/include/arch/i686/drivers/ps2ctrl.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+uint8_t ps2ctrl_in(void);
+uint8_t ps2ctrl_in_status(void);
+void ps2ctrl_out_cmd(uint8_t cmd);
+void ps2ctrl_out_data(uint8_t data);
+void ps2ctrl_set_port2(void);
+
+void ps2ctrl_init(void);
+
+bool ps2ctrl_is_init(void);
diff --git a/kernel/include/arch/i686/drivers/rtc.h b/kernel/include/arch/i686/drivers/rtc.h
new file mode 100644
index 0000000..29dbf8f
--- /dev/null
+++ b/kernel/include/arch/i686/drivers/rtc.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <time.h>
+
+extern void rtc_update(void);
+extern struct Time rtc_utctime(void);
+extern struct Time rtc_localtime(enum Timezone tz);
diff --git a/kernel/include/arch/i686/idt.h b/kernel/include/arch/i686/idt.h
new file mode 100644
index 0000000..8dcee02
--- /dev/null
+++ b/kernel/include/arch/i686/idt.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#define IDT_SIZE 256
+#define IDT_INTERRUPTS 256
+
+void idt_init(void);
diff --git a/kernel/include/arch/i686/mboot.h b/kernel/include/arch/i686/mboot.h
new file mode 100644
index 0000000..394071f
--- /dev/null
+++ b/kernel/include/arch/i686/mboot.h
@@ -0,0 +1,34 @@
+#pragma once 
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <arch/i686/mboot.h>
+#include <arch/i686/memory.h>
+
+#define CMDLINE_MAX 32
+
+struct BootTag {
+    uint8_t valid;
+    uint32_t type;
+    uint32_t size;
+    union {
+        char cmdline[CMDLINE_MAX];
+        struct MemoryMap *memory_map;
+        struct RootSystemDescriptionPointer *rsdp;
+    } data;
+};
+
+struct BootInfo {
+    uint32_t total_size;
+    uint32_t reserved;
+    struct BootTag tags[21];
+};
+
+enum BootTagID {
+    ID_CMDLINE = 0,
+    iD_MEMORYMAP = 6,
+    ID_RSDP = 14
+};
+
+void load_boot_info(void* boot_info);
+bool get_boot_tag(enum BootTagID id, struct BootTag **tag);
diff --git a/kernel/include/arch/i686/memory.h b/kernel/include/arch/i686/memory.h
new file mode 100644
index 0000000..5d99025
--- /dev/null
+++ b/kernel/include/arch/i686/memory.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <stdint.h>
+
+struct MemorySegment {
+    uint64_t addr;
+    uint64_t len;
+    uint32_t type;
+    uint32_t reserved;
+} __attribute__((packed));
+
+struct MemoryMap {
+    uint32_t entry_size;
+    uint32_t entry_version;
+    struct MemorySegment entries[];
+} __attribute__((packed));
+
+uint32_t memory_total(void);
+uint32_t memory_free(void);
+uint32_t memory_used(void);
+
+void memory_init(void);
diff --git a/kernel/include/arch/i686/pic.h b/kernel/include/arch/i686/pic.h
new file mode 100644
index 0000000..593a33a
--- /dev/null
+++ b/kernel/include/arch/i686/pic.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <stdint.h>
+
+#define PIC_REMAP_OFFSET 0x20
+
+void pic_remap(void);
+void pic_mask(int irq);
+void pic_unmask(int irq);
+void pic_disable(void);
+void pic_eoi(int irq);