/drivers/input/serio/i8042-snirm.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2#ifndef _I8042_SNIRM_H
 3#define _I8042_SNIRM_H
 4
 5#include <asm/sni.h>
 6
 7
 8/*
 9 * Names.
10 */
11
12#define I8042_KBD_PHYS_DESC "onboard/serio0"
13#define I8042_AUX_PHYS_DESC "onboard/serio1"
14#define I8042_MUX_PHYS_DESC "onboard/serio%d"
15
16/*
17 * IRQs.
18 */
19static int i8042_kbd_irq;
20static int i8042_aux_irq;
21#define I8042_KBD_IRQ i8042_kbd_irq
22#define I8042_AUX_IRQ i8042_aux_irq
23
24static void __iomem *kbd_iobase;
25
26#define I8042_COMMAND_REG	(kbd_iobase + 0x64UL)
27#define I8042_DATA_REG		(kbd_iobase + 0x60UL)
28
29static inline int i8042_read_data(void)
30{
31	return readb(kbd_iobase + 0x60UL);
32}
33
34static inline int i8042_read_status(void)
35{
36	return readb(kbd_iobase + 0x64UL);
37}
38
39static inline void i8042_write_data(int val)
40{
41	writeb(val, kbd_iobase + 0x60UL);
42}
43
44static inline void i8042_write_command(int val)
45{
46	writeb(val, kbd_iobase + 0x64UL);
47}
48static inline int i8042_platform_init(void)
49{
50	/* RM200 is strange ... */
51	if (sni_brd_type == SNI_BRD_RM200) {
52		kbd_iobase = ioremap(0x16000000, 4);
53		i8042_kbd_irq = 33;
54		i8042_aux_irq = 44;
55	} else {
56		kbd_iobase = ioremap(0x14000000, 4);
57		i8042_kbd_irq = 1;
58		i8042_aux_irq = 12;
59	}
60	if (!kbd_iobase)
61		return -ENOMEM;
62
63	return 0;
64}
65
66static inline void i8042_platform_exit(void)
67{
68
69}
70
71#endif /* _I8042_SNIRM_H */