diff options
Diffstat (limited to 'kernel/drivers/mouse.c')
| -rw-r--r-- | kernel/drivers/mouse.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/kernel/drivers/mouse.c b/kernel/drivers/mouse.c deleted file mode 100644 index 3a78bc8..0000000 --- a/kernel/drivers/mouse.c +++ /dev/null @@ -1,194 +0,0 @@ -// MIT License, Copyright (c) 2020 Marvin Borner - -#include <boot.h> -#include <cpu.h> -#include <errno.h> -#include <fs.h> -#include <interrupts.h> -#include <mem.h> -#include <mouse.h> -#include <print.h> -#include <proc.h> -#include <stack.h> -#include <str.h> -#include <sys.h> - -PROTECTED static struct stack *queue = NULL; -PROTECTED static u32 dev_id = 0; - -static struct event_mouse *event = NULL; -static char mouse_cycle = 0; -static char mouse_byte[3] = { 0 }; -static void mouse_handler(struct regs *r) -{ - UNUSED(r); - switch (mouse_cycle) { - case 0: - mouse_byte[0] = (char)inb(0x60); - if (((mouse_byte[0] >> 3) & 1) == 1) - mouse_cycle++; - else - mouse_cycle = 0; - break; - case 1: - mouse_byte[1] = (char)inb(0x60); - mouse_cycle++; - break; - case 2: - mouse_byte[2] = (char)inb(0x60); - - event = malloc(sizeof(*event)); - event->magic = MOUSE_MAGIC; - event->diff_x = mouse_byte[1]; - event->diff_y = mouse_byte[2]; - event->but1 = mouse_byte[0] & 1; - event->but2 = (mouse_byte[0] >> 1) & 1; - event->but3 = (mouse_byte[0] >> 2) & 1; - stack_push_bot(queue, event); - mouse_cycle = 0; - break; - default: - break; - } -} - -CLEAR static void mouse_serial_wait(u8 a_type) -{ - u32 time_out = 100000; - if (a_type == 0) { - while (time_out--) - if ((inb(0x64) & 1) == 1) - return; - return; - } else { - while (time_out--) - if ((inb(0x64) & 2) == 0) - return; - return; - } -} - -CLEAR static void mouse_serial_write(u8 a_write) -{ - mouse_serial_wait(1); - outb(0x64, 0xD4); - mouse_serial_wait(1); - outb(0x60, a_write); -} - -CLEAR static u8 mouse_serial_read(void) -{ - mouse_serial_wait(0); - return inb(0x60); -} - -static res mouse_ready(void) -{ - return !stack_empty(queue); -} - -static res mouse_read(void *buf, u32 offset, u32 count, struct vfs_dev *dev) -{ - (void)dev; - if (stack_empty(queue)) - return -EINVAL; - - struct event_mouse *e = stack_pop(queue); - memcpy_user(buf, (u8 *)e + offset, MIN(count, sizeof(*e))); - free(e); - return MIN(count, sizeof(*e)); -} - -CLEAR void mouse_install(void) -{ - u8 status; - - // Enable auxiliary mouse device - mouse_serial_wait(1); - outb(0x64, 0xA8); - - // Enable interrupts - mouse_serial_wait(1); - outb(0x64, 0x20); - mouse_serial_wait(0); - status = (u8)(inb(0x60) | 3); - mouse_serial_wait(1); - outb(0x64, 0x60); - mouse_serial_wait(1); - outb(0x60, status); - - // Use default settings - mouse_serial_write(0xF6); - mouse_serial_read(); - - // Enable mousewheel - mouse_serial_write(0xF2); - mouse_serial_read(); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(200); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(100); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(80); - mouse_serial_read(); - mouse_serial_write(0xF2); - mouse_serial_read(); - status = (u8)mouse_serial_read(); - if (status == 3) { - } - /* printf("Scrollwheel support!\n"); */ - - // Activate 4th and 5th mouse buttons - mouse_serial_write(0xF2); - mouse_serial_read(); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(200); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(200); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(80); - mouse_serial_read(); - mouse_serial_write(0xF2); - mouse_serial_read(); - status = (u8)mouse_serial_read(); - if (status == 4) { - } - /* printf("4th and 5th mouse button support!\n"); */ - - /* TODO: Fix mouse laggyness - mouse_serial_write(0xE8); - mouse_serial_read(); - mouse_serial_write(0x03); - mouse_serial_read(); - mouse_serial_write(0xF3); - mouse_serial_read(); - mouse_serial_write(200); - mouse_serial_read(); */ - - // Enable mouse - mouse_serial_write(0xF4); - mouse_serial_read(); - - // Setup the mouse handler - irq_install_handler(12, mouse_handler); - - queue = stack_new(); - struct vfs_dev *dev = zalloc(sizeof(*dev)); - dev->name = strdup("mouse"); - dev->type = DEV_CHAR; - dev->read = mouse_read; - /* device_add(dev); */ - dev_id = dev->id; -} |