Initial import of qemu-2.4.1HEADmaster

1 files changed, 626 insertions, 0 deletions

diff --git a/roms/u-boot/board/mpl/common/kbd.c b/roms/u-boot/board/mpl/common/kbd.c
new file mode 100644
index 00000000..1b5487b1
--- /dev/null
+++ b/roms/u-boot/board/mpl/common/kbd.c
@@ -0,0 +1,626 @@
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Source partly derived from:
+ * linux/drivers/char/pc_keyb.c
+ */
+#include <common.h>
+#include <asm/processor.h>
+#include <stdio_dev.h>
+#include "isa.h"
+#include "kbd.h"
+
+
+unsigned char kbd_read_status(void);
+unsigned char kbd_read_input(void);
+void kbd_send_data(unsigned char data);
+void disable_8259A_irq(unsigned int irq);
+void enable_8259A_irq(unsigned int irq);
+
+/* used only by send_data - set by keyboard_interrupt */
+
+
+#undef KBG_DEBUG
+
+#ifdef KBG_DEBUG
+#define	PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#define KBD_STAT_KOBF		0x01
+#define KBD_STAT_IBF		0x02
+#define KBD_STAT_SYS		0x04
+#define KBD_STAT_CD		0x08
+#define KBD_STAT_LOCK		0x10
+#define KBD_STAT_MOBF		0x20
+#define KBD_STAT_TI_OUT		0x40
+#define KBD_STAT_PARERR		0x80
+
+#define KBD_INIT_TIMEOUT	1000	/* Timeout in ms for initializing the keyboard */
+#define KBC_TIMEOUT		250	/* Timeout in ms for sending to keyboard controller */
+#define KBD_TIMEOUT		2000	/* Timeout in ms for keyboard command acknowledge */
+/*
+ *	Keyboard Controller Commands
+ */
+
+#define KBD_CCMD_READ_MODE	0x20	/* Read mode bits */
+#define KBD_CCMD_WRITE_MODE	0x60	/* Write mode bits */
+#define KBD_CCMD_GET_VERSION	0xA1	/* Get controller version */
+#define KBD_CCMD_MOUSE_DISABLE	0xA7	/* Disable mouse interface */
+#define KBD_CCMD_MOUSE_ENABLE	0xA8	/* Enable mouse interface */
+#define KBD_CCMD_TEST_MOUSE	0xA9	/* Mouse interface test */
+#define KBD_CCMD_SELF_TEST	0xAA	/* Controller self test */
+#define KBD_CCMD_KBD_TEST	0xAB	/* Keyboard interface test */
+#define KBD_CCMD_KBD_DISABLE	0xAD	/* Keyboard interface disable */
+#define KBD_CCMD_KBD_ENABLE	0xAE	/* Keyboard interface enable */
+#define KBD_CCMD_WRITE_AUX_OBUF	0xD3    /* Write to output buffer as if
+					   initiated by the auxiliary device */
+#define KBD_CCMD_WRITE_MOUSE	0xD4	/* Write the following byte to the mouse */
+
+/*
+ *	Keyboard Commands
+ */
+
+#define KBD_CMD_SET_LEDS	0xED	/* Set keyboard leds */
+#define KBD_CMD_SET_RATE	0xF3	/* Set typematic rate */
+#define KBD_CMD_ENABLE		0xF4	/* Enable scanning */
+#define KBD_CMD_DISABLE		0xF5	/* Disable scanning */
+#define KBD_CMD_RESET		0xFF	/* Reset */
+
+/*
+ *	Keyboard Replies
+ */
+
+#define KBD_REPLY_POR		0xAA	/* Power on reset */
+#define KBD_REPLY_ACK		0xFA	/* Command ACK */
+#define KBD_REPLY_RESEND	0xFE	/* Command NACK, send the cmd again */
+
+/*
+ *	Status Register Bits
+ */
+
+#define KBD_STAT_OBF		0x01	/* Keyboard output buffer full */
+#define KBD_STAT_IBF		0x02	/* Keyboard input buffer full */
+#define KBD_STAT_SELFTEST	0x04	/* Self test successful */
+#define KBD_STAT_CMD		0x08	/* Last write was a command write (0=data) */
+#define KBD_STAT_UNLOCKED	0x10	/* Zero if keyboard locked */
+#define KBD_STAT_MOUSE_OBF	0x20	/* Mouse output buffer full */
+#define KBD_STAT_GTO		0x40	/* General receive/xmit timeout */
+#define KBD_STAT_PERR		0x80	/* Parity error */
+
+#define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF)
+
+/*
+ *	Controller Mode Register Bits
+ */
+
+#define KBD_MODE_KBD_INT	0x01	/* Keyboard data generate IRQ1 */
+#define KBD_MODE_MOUSE_INT	0x02	/* Mouse data generate IRQ12 */
+#define KBD_MODE_SYS		0x04	/* The system flag (?) */
+#define KBD_MODE_NO_KEYLOCK	0x08	/* The keylock doesn't affect the keyboard if set */
+#define KBD_MODE_DISABLE_KBD	0x10	/* Disable keyboard interface */
+#define KBD_MODE_DISABLE_MOUSE	0x20	/* Disable mouse interface */
+#define KBD_MODE_KCC		0x40	/* Scan code conversion to PC format */
+#define KBD_MODE_RFU		0x80
+
+
+#define KDB_DATA_PORT		0x60
+#define KDB_COMMAND_PORT	0x64
+
+#define	LED_SCR			0x01	/* scroll lock led */
+#define	LED_CAP			0x04	/* caps lock led */
+#define	LED_NUM			0x02	/* num lock led */
+
+#define	KBD_BUFFER_LEN		0x20	/* size of the keyboardbuffer */
+
+
+static volatile char kbd_buffer[KBD_BUFFER_LEN];
+static volatile int in_pointer = 0;
+static volatile int out_pointer = 0;
+
+
+static unsigned char num_lock = 0;
+static unsigned char caps_lock = 0;
+static unsigned char scroll_lock = 0;
+static unsigned char shift = 0;
+static unsigned char ctrl = 0;
+static unsigned char alt = 0;
+static unsigned char e0 = 0;
+static unsigned char leds = 0;
+
+#define DEVNAME "kbd"
+
+/* Simple translation table for the keys */
+
+static unsigned char kbd_plain_xlate[] = {
+	0xff,0x1b, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=','\b','\t',	/* 0x00 - 0x0f */
+	 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']','\r',0xff, 'a', 's',	/* 0x10 - 0x1f */
+	 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';','\'', '`',0xff,'\\', 'z', 'x', 'c', 'v',	/* 0x20 - 0x2f */
+	 'b', 'n', 'm', ',', '.', '/',0xff,0xff,0xff, ' ',0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+static unsigned char kbd_shift_xlate[] = {
+	0xff,0x1b, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+','\b','\t',	/* 0x00 - 0x0f */
+	 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}','\r',0xff, 'A', 'S',	/* 0x10 - 0x1f */
+	 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~',0xff, '|', 'Z', 'X', 'C', 'V',	/* 0x20 - 0x2f */
+	 'B', 'N', 'M', '<', '>', '?',0xff,0xff,0xff, ' ',0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+static unsigned char kbd_ctrl_xlate[] = {
+	0xff,0x1b, '1',0x00, '3', '4', '5',0x1E, '7', '8', '9', '0',0x1F, '=','\b','\t',	/* 0x00 - 0x0f */
+	0x11,0x17,0x05,0x12,0x14,0x18,0x15,0x09,0x0f,0x10,0x1b,0x1d,'\n',0xff,0x01,0x13,	/* 0x10 - 0x1f */
+	0x04,0x06,0x08,0x09,0x0a,0x0b,0x0c, ';','\'', '~',0x00,0x1c,0x1a,0x18,0x03,0x16,	/* 0x20 - 0x2f */
+	0x02,0x0e,0x0d, '<', '>', '?',0xff,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0xff,0xff,	/* 0x30 - 0x3f */
+	0xff,0xff,0xff,0xff,0xff,0xff,0xff, '7', '8', '9', '-', '4', '5', '6', '+', '1',	/* 0x40 - 0x4f */
+	 '2', '3', '0', '.',0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,  /* 0x50 - 0x5F */
+	'\r',0xff,0xff
+	};
+
+/******************************************************************
+ * Init
+ ******************************************************************/
+int isa_kbd_init(void)
+{
+	char* result;
+	result=kbd_initialize();
+	if(result==NULL) {
+		PRINTF("AT Keyboard initialized\n");
+		irq_install_handler(25, (interrupt_handler_t *)handle_isa_int, NULL);
+		isa_irq_install_handler(KBD_INTERRUPT, (interrupt_handler_t *)kbd_interrupt, NULL);
+		return (1);
+	} else {
+		printf("%s\n",result);
+		return (-1);
+	}
+}
+
+#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
+extern int overwrite_console (void);
+#else
+int overwrite_console (void)
+{
+	return (0);
+}
+#endif
+
+int drv_isa_kbd_init (void)
+{
+	int error;
+	struct stdio_dev kbddev ;
+	char *stdinname  = getenv ("stdin");
+
+	if(isa_kbd_init()==-1)
+		return -1;
+	memset (&kbddev, 0, sizeof(kbddev));
+	strcpy(kbddev.name, DEVNAME);
+	kbddev.flags =  DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+	kbddev.putc = NULL ;
+	kbddev.puts = NULL ;
+	kbddev.getc = kbd_getc ;
+	kbddev.tstc = kbd_testc ;
+
+	error = stdio_register (&kbddev);
+	if(error==0) {
+		/* check if this is the standard input device */
+		if(strcmp(stdinname,DEVNAME)==0) {
+			/* reassign the console */
+			if(overwrite_console()) {
+				return 1;
+			}
+			error=console_assign(stdin,DEVNAME);
+			if(error==0)
+				return 1;
+			else
+				return error;
+		}
+		return 1;
+	}
+	return error;
+}
+
+/******************************************************************
+ * Queue handling
+ ******************************************************************/
+/* puts character in the queue and sets up the in and out pointer */
+void kbd_put_queue(char data)
+{
+	if((in_pointer+1)==KBD_BUFFER_LEN) {
+		if(out_pointer==0) {
+			return; /* buffer full */
+		} else{
+			in_pointer=0;
+		}
+	} else {
+		if((in_pointer+1)==out_pointer)
+			return; /* buffer full */
+		in_pointer++;
+	}
+	kbd_buffer[in_pointer]=data;
+	return;
+}
+
+/* test if a character is in the queue */
+int kbd_testc(void)
+{
+	if(in_pointer==out_pointer)
+		return(0); /* no data */
+	else
+		return(1);
+}
+/* gets the character from the queue */
+int kbd_getc(void)
+{
+	char c;
+	while(in_pointer==out_pointer);
+	if((out_pointer+1)==KBD_BUFFER_LEN)
+		out_pointer=0;
+	else
+		out_pointer++;
+	c=kbd_buffer[out_pointer];
+	return (int)c;
+
+}
+
+
+/* set LEDs */
+
+void kbd_set_leds(void)
+{
+	if(caps_lock==0)
+		leds&=~LED_CAP; /* switch caps_lock off */
+	else
+		leds|=LED_CAP; /* switch on LED */
+	if(num_lock==0)
+		leds&=~LED_NUM; /* switch LED off */
+	else
+		leds|=LED_NUM;  /* switch on LED */
+	if(scroll_lock==0)
+		leds&=~LED_SCR; /* switch LED off */
+	else
+		leds|=LED_SCR; /* switch on LED */
+	kbd_send_data(KBD_CMD_SET_LEDS);
+	kbd_send_data(leds);
+}
+
+
+void handle_keyboard_event (unsigned char scancode)
+{
+	unsigned char keycode;
+
+	/*  Convert scancode to keycode */
+	PRINTF ("scancode %x\n", scancode);
+	if (scancode == 0xe0) {
+		e0 = 1;		/* special charakters */
+		return;
+	}
+	if (e0 == 1) {
+		e0 = 0;		/* delete flag */
+		if (!(((scancode & 0x7F) == 0x38) ||	/* the right ctrl key */
+		      ((scancode & 0x7F) == 0x1D) ||	/* the right alt key */
+		      ((scancode & 0x7F) == 0x35) ||	/* the right '/' key */
+		      ((scancode & 0x7F) == 0x1C)))
+			/* the right enter key */
+			/* we swallow unknown e0 codes */
+			return;
+	}
+	/* special cntrl keys */
+	switch (scancode) {
+	case 0x2A:
+	case 0x36:		/* shift pressed */
+		shift = 1;
+		return;		/* do nothing else */
+	case 0xAA:
+	case 0xB6:		/* shift released */
+		shift = 0;
+		return;		/* do nothing else */
+	case 0x38:		/* alt pressed */
+		alt = 1;
+		return;		/* do nothing else */
+	case 0xB8:		/* alt released */
+		alt = 0;
+		return;		/* do nothing else */
+	case 0x1d:		/* ctrl pressed */
+		ctrl = 1;
+		return;		/* do nothing else */
+	case 0x9d:		/* ctrl released */
+		ctrl = 0;
+		return;		/* do nothing else */
+	case 0x46:		/* scrollock pressed */
+		scroll_lock = ~scroll_lock;
+		kbd_set_leds ();
+		return;		/* do nothing else */
+	case 0x3A:		/* capslock pressed */
+		caps_lock = ~caps_lock;
+		kbd_set_leds ();
+		return;
+	case 0x45:		/* numlock pressed */
+		num_lock = ~num_lock;
+		kbd_set_leds ();
+		return;
+	case 0xC6:		/* scroll lock released */
+	case 0xC5:		/* num lock released */
+	case 0xBA:		/* caps lock released */
+		return;		/* just swallow */
+	}
+	if ((scancode & 0x80) == 0x80)	/* key released */
+		return;
+	/* now, decide which table we need */
+	if (scancode > (sizeof (kbd_plain_xlate) / sizeof (kbd_plain_xlate[0]))) {	/* scancode not in list */
+		PRINTF ("unkown scancode %X\n", scancode);
+		return;		/* swallow it */
+	}
+	/* setup plain code first */
+	keycode = kbd_plain_xlate[scancode];
+	if (caps_lock == 1) {	/* caps_lock is pressed, overwrite plain code */
+		if (scancode > (sizeof (kbd_shift_xlate) / sizeof (kbd_shift_xlate[0]))) {	/* scancode not in list */
+			PRINTF ("unkown caps-locked scancode %X\n", scancode);
+			return;	/* swallow it */
+		}
+		keycode = kbd_shift_xlate[scancode];
+		if (keycode < 'A') {	/* we only want the alphas capital */
+			keycode = kbd_plain_xlate[scancode];
+		}
+	}
+	if (shift == 1) {	/* shift overwrites caps_lock */
+		if (scancode > (sizeof (kbd_shift_xlate) / sizeof (kbd_shift_xlate[0]))) {	/* scancode not in list */
+			PRINTF ("unkown shifted scancode %X\n", scancode);
+			return;	/* swallow it */
+		}
+		keycode = kbd_shift_xlate[scancode];
+	}
+	if (ctrl == 1) {	/* ctrl overwrites caps_lock and shift */
+		if (scancode > (sizeof (kbd_ctrl_xlate) / sizeof (kbd_ctrl_xlate[0]))) {	/* scancode not in list */
+			PRINTF ("unkown ctrl scancode %X\n", scancode);
+			return;	/* swallow it */
+		}
+		keycode = kbd_ctrl_xlate[scancode];
+	}
+	/* check if valid keycode */
+	if (keycode == 0xff) {
+		PRINTF ("unkown scancode %X\n", scancode);
+		return;		/* swallow unknown codes */
+	}
+
+	kbd_put_queue (keycode);
+	PRINTF ("%x\n", keycode);
+}
+
+/*
+ * This reads the keyboard status port, and does the
+ * appropriate action.
+ *
+ */
+unsigned char handle_kbd_event(void)
+{
+	unsigned char status = kbd_read_status();
+	unsigned int work = 10000;
+
+	while ((--work > 0) && (status & KBD_STAT_OBF)) {
+		unsigned char scancode;
+
+		scancode = kbd_read_input();
+
+		/* Error bytes must be ignored to make the
+		   Synaptics touchpads compaq use work */
+		/* Ignore error bytes */
+		if (!(status & (KBD_STAT_GTO | KBD_STAT_PERR)))
+		{
+			if (status & KBD_STAT_MOUSE_OBF)
+				; /* not supported: handle_mouse_event(scancode); */
+			else
+				handle_keyboard_event(scancode);
+		}
+		status = kbd_read_status();
+	}
+	if (!work)
+		PRINTF("pc_keyb: controller jammed (0x%02X).\n", status);
+	return status;
+}
+
+
+/******************************************************************************
+ * Lowlevel Part of keyboard section
+ */
+unsigned char kbd_read_status(void)
+{
+	return(in8(CONFIG_SYS_ISA_IO_BASE_ADDRESS + KDB_COMMAND_PORT));
+}
+
+unsigned char kbd_read_input(void)
+{
+	return(in8(CONFIG_SYS_ISA_IO_BASE_ADDRESS + KDB_DATA_PORT));
+}
+
+void kbd_write_command(unsigned char cmd)
+{
+	out8(CONFIG_SYS_ISA_IO_BASE_ADDRESS + KDB_COMMAND_PORT,cmd);
+}
+
+void kbd_write_output(unsigned char data)
+{
+	out8(CONFIG_SYS_ISA_IO_BASE_ADDRESS + KDB_DATA_PORT, data);
+}
+
+int kbd_read_data(void)
+{
+	int val;
+	unsigned char status;
+
+	val = -1;
+	status = kbd_read_status();
+	if (status & KBD_STAT_OBF) {
+		val = kbd_read_input();
+		if (status & (KBD_STAT_GTO | KBD_STAT_PERR))
+			val = -2;
+	}
+	return val;
+}
+
+int kbd_wait_for_input(void)
+{
+	unsigned long timeout;
+	int val;
+
+	timeout = KBD_TIMEOUT;
+	val=kbd_read_data();
+	while(val < 0)
+	{
+		if(timeout--==0)
+			return -1;
+		udelay(1000);
+		val=kbd_read_data();
+	}
+	return val;
+}
+
+
+int kb_wait(void)
+{
+	unsigned long timeout = KBC_TIMEOUT * 10;
+
+	do {
+		unsigned char status = handle_kbd_event();
+		if (!(status & KBD_STAT_IBF))
+			return 0; /* ok */
+		udelay(1000);
+		timeout--;
+	} while (timeout);
+	return 1;
+}
+
+void kbd_write_command_w(int data)
+{
+	if(kb_wait())
+		PRINTF("timeout in kbd_write_command_w\n");
+	kbd_write_command(data);
+}
+
+void kbd_write_output_w(int data)
+{
+	if(kb_wait())
+		PRINTF("timeout in kbd_write_output_w\n");
+	kbd_write_output(data);
+}
+
+void kbd_send_data(unsigned char data)
+{
+	unsigned char status;
+	disable_8259A_irq(1); /* disable interrupt */
+	kbd_write_output_w(data);
+	status = kbd_wait_for_input();
+	if (status == KBD_REPLY_ACK)
+		enable_8259A_irq(1); /* enable interrupt */
+}
+
+
+char * kbd_initialize(void)
+{
+	int status;
+
+	in_pointer = 0; /* delete in Buffer */
+	out_pointer = 0;
+	/*
+	 * Test the keyboard interface.
+	 * This seems to be the only way to get it going.
+	 * If the test is successful a x55 is placed in the input buffer.
+	 */
+	kbd_write_command_w(KBD_CCMD_SELF_TEST);
+	if (kbd_wait_for_input() != 0x55)
+		return "Kbd:   failed self test";
+	/*
+	 * Perform a keyboard interface test.  This causes the controller
+	 * to test the keyboard clock and data lines.  The results of the
+	 * test are placed in the input buffer.
+	 */
+	kbd_write_command_w(KBD_CCMD_KBD_TEST);
+	if (kbd_wait_for_input() != 0x00)
+		return "Kbd:   interface failed self test";
+	/*
+	 * Enable the keyboard by allowing the keyboard clock to run.
+	 */
+	kbd_write_command_w(KBD_CCMD_KBD_ENABLE);
+	status = kbd_wait_for_input();
+	/*
+	 * Reset keyboard. If the read times out
+	 * then the assumption is that no keyboard is
+	 * plugged into the machine.
+	 * This defaults the keyboard to scan-code set 2.
+	 *
+	 * Set up to try again if the keyboard asks for RESEND.
+	 */
+	do {
+		kbd_write_output_w(KBD_CMD_RESET);
+		status = kbd_wait_for_input();
+		if (status == KBD_REPLY_ACK)
+			break;
+		if (status != KBD_REPLY_RESEND) {
+			PRINTF("status: %X\n",status);
+			return "Kbd:   reset failed, no ACK";
+		}
+	} while (1);
+	if (kbd_wait_for_input() != KBD_REPLY_POR)
+		return "Kbd:   reset failed, no POR";
+
+	/*
+	 * Set keyboard controller mode. During this, the keyboard should be
+	 * in the disabled state.
+	 *
+	 * Set up to try again if the keyboard asks for RESEND.
+	 */
+	do {
+		kbd_write_output_w(KBD_CMD_DISABLE);
+		status = kbd_wait_for_input();
+		if (status == KBD_REPLY_ACK)
+			break;
+		if (status != KBD_REPLY_RESEND)
+			return "Kbd:   disable keyboard: no ACK";
+	} while (1);
+
+	kbd_write_command_w(KBD_CCMD_WRITE_MODE);
+	kbd_write_output_w(KBD_MODE_KBD_INT
+			      | KBD_MODE_SYS
+			      | KBD_MODE_DISABLE_MOUSE
+			      | KBD_MODE_KCC);
+
+	/* AMCC powerpc portables need this to use scan-code set 1 -- Cort */
+	kbd_write_command_w(KBD_CCMD_READ_MODE);
+	if (!(kbd_wait_for_input() & KBD_MODE_KCC)) {
+		/*
+		 * If the controller does not support conversion,
+		 * Set the keyboard to scan-code set 1.
+		 */
+		kbd_write_output_w(0xF0);
+		kbd_wait_for_input();
+		kbd_write_output_w(0x01);
+		kbd_wait_for_input();
+	}
+	kbd_write_output_w(KBD_CMD_ENABLE);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   enable keyboard: no ACK";
+
+	/*
+	 * Finally, set the typematic rate to maximum.
+	 */
+	kbd_write_output_w(KBD_CMD_SET_RATE);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   Set rate: no ACK";
+	kbd_write_output_w(0x00);
+	if (kbd_wait_for_input() != KBD_REPLY_ACK)
+		return "Kbd:   Set rate: no ACK";
+	return NULL;
+}
+
+void kbd_interrupt(void)
+{
+	handle_kbd_event();
+}