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 */
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 */
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#define i8042_DATA      0x60
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#define i8042_DATA      0x60
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#define i8042_STATUS        0x64
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#define i8042_STATUS        0x64
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/** Keyboard commands. */
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/** Keyboard commands. */
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#define KBD_ENABLE  0xf4
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#define KBD_ENABLE  0xf4
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#define KBD_DISABLE 0xf5
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#define KBD_DISABLE 0xf5
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#define KBD_ACK     0xfa
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#define KBD_ACK     0xfa
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/*
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 60   Write 8042 Command Byte: next data byte written to port 60h is
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      placed in 8042 command register.Format:
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     |7|6|5|4|3|2|1|0|8042 Command Byte
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      | | | | | | | `---- 1=enable output register full interrupt
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      | | | | | | `----- should be 0
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      | | | | | `------ 1=set status register system, 0=clear
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      | | | | `------- 1=override keyboard inhibit, 0=allow inhibit
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      | | | `-------- disable keyboard I/O by driving clock line low
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      | | `--------- disable auxiliary device, drives clock line low
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      | `---------- IBM scancode translation 0=AT, 1=PC/XT
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      `----------- reserved, should be 0
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*/
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#define i8042_SET_COMMAND 0x60
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#define i8042_COMMAND 0x09
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#define i8042_WAIT_MASK 0x02
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#define SPECIAL     '?'
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#define SPECIAL     '?'
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#define KEY_RELEASE 0x80
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#define KEY_RELEASE 0x80
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static void key_released(__u8 sc);
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static void key_released(__u8 sc);
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static void key_pressed(__u8 sc);
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static void key_pressed(__u8 sc);
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/** Initialize i8042. */
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/** Initialize i8042. */
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void i8042_init(void)
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void i8042_init(void)
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{
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{
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    exc_register(VECTOR_KBD, "i8042_interrupt", i8042_interrupt);
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    exc_register(VECTOR_KBD, "i8042_interrupt", i8042_interrupt);
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    while (inb(i8042_STATUS)&i8042_WAIT_MASK);     /*Wait*/
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    outb(i8042_STATUS,i8042_SET_COMMAND);
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    while (inb(i8042_STATUS)&i8042_WAIT_MASK);     /*Wait*/
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    outb(i8042_DATA,i8042_COMMAND);
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    trap_virtual_enable_irqs(1<<IRQ_KBD);
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    trap_virtual_enable_irqs(1<<IRQ_KBD);
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    chardev_initialize("i8042_kbd", &kbrd, &ops);
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    chardev_initialize("i8042_kbd", &kbrd, &ops);
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    stdin = &kbrd;
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    stdin = &kbrd;
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}
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}
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