tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2#ifndef _I8042_PPCIO_H
3#define _I8042_PPCIO_H
4
5
6#if defined(CONFIG_WALNUT)
7
8#define I8042_KBD_IRQ 25
9#define I8042_AUX_IRQ 26
10
11#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
12#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
13#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
14
15extern void *kb_cs;
16extern void *kb_data;
17
18#define I8042_COMMAND_REG (*(int *)kb_cs)
19#define I8042_DATA_REG (*(int *)kb_data)
20
21static inline int i8042_read_data(void)
22{
23 return readb(kb_data);
24}
25
26static inline int i8042_read_status(void)
27{
28 return readb(kb_cs);
29}
30
31static inline void i8042_write_data(int val)
32{
33 writeb(val, kb_data);
34}
35
36static inline void i8042_write_command(int val)
37{
38 writeb(val, kb_cs);
39}
40
41static inline int i8042_platform_init(void)
42{
43 i8042_reset = I8042_RESET_ALWAYS;
44 return 0;
45}
46
47static inline void i8042_platform_exit(void)
48{
49}
50
51#else
52
53#include "i8042-io.h"
54
55#endif
56
57#endif /* _I8042_PPCIO_H */