blob: c2c1213184d9f2213978463a211a5510abaf37c3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/* $Id: hw-access.c,v 1.6 1998/06/30 00:21:59 ralf Exp $
*
* Low-level hardware access stuff for SNI RM200 PCI
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1996, 1997, 1998 by Ralf Baechle
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/kbd_ll.h>
#include <linux/kbdcntrlr.h>
#include <linux/kernel.h>
#include <linux/linkage.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <asm/bootinfo.h>
#include <asm/cachectl.h>
#include <asm/dma.h>
#include <asm/keyboard.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mc146818rtc.h>
#include <asm/pgtable.h>
#include <asm/sni.h>
#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
static unsigned char sni_read_input(void)
{
return inb(KBD_DATA_REG);
}
static void sni_write_output(unsigned char val)
{
int status;
do {
status = inb(KBD_CNTL_REG);
} while (status & KBD_STAT_IBF);
outb(val, KBD_DATA_REG);
}
static void sni_write_command(unsigned char val)
{
int status;
do {
status = inb(KBD_CNTL_REG);
} while (status & KBD_STAT_IBF);
outb(val, KBD_CNTL_REG);
}
static unsigned char sni_read_status(void)
{
return inb(KBD_STATUS_REG);
}
__initfunc(void sni_rm200_keyboard_setup(void))
{
kbd_read_input = sni_read_input;
kbd_write_output = sni_write_output;
kbd_write_command = sni_write_command;
kbd_read_status = sni_read_status;
request_irq(PCIMT_KEYBOARD_IRQ, keyboard_interrupt,
0, "keyboard", NULL);
request_region(0x60, 16, "keyboard");
}
|
