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1/*
2 * Code specific to PKUnity SoC and UniCore ISA
3 *
4 * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
5 * Copyright (C) 2001-2011 Guan Xuetao
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef _I8042_UNICORE32_H
12#define _I8042_UNICORE32_H
13
14#include <mach/hardware.h>
15
16/*
17 * Names.
18 */
19#define I8042_KBD_PHYS_DESC "isa0060/serio0"
20#define I8042_AUX_PHYS_DESC "isa0060/serio1"
21#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
22
23/*
24 * IRQs.
25 */
26#define I8042_KBD_IRQ IRQ_PS2_KBD
27#define I8042_AUX_IRQ IRQ_PS2_AUX
28
29/*
30 * Register numbers.
31 */
32#define I8042_COMMAND_REG PS2_COMMAND
33#define I8042_STATUS_REG PS2_STATUS
34#define I8042_DATA_REG PS2_DATA
35
36#define I8042_REGION_START (resource_size_t)(PS2_DATA)
37#define I8042_REGION_SIZE (resource_size_t)(16)
38
39static inline int i8042_read_data(void)
40{
41 return readb(I8042_DATA_REG);
42}
43
44static inline int i8042_read_status(void)
45{
46 return readb(I8042_STATUS_REG);
47}
48
49static inline void i8042_write_data(int val)
50{
51 writeb(val, I8042_DATA_REG);
52}
53
54static inline void i8042_write_command(int val)
55{
56 writeb(val, I8042_COMMAND_REG);
57}
58
59static inline int i8042_platform_init(void)
60{
61 if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042"))
62 return -EBUSY;
63
64 i8042_reset = I8042_RESET_ALWAYS;
65 return 0;
66}
67
68static inline void i8042_platform_exit(void)
69{
70 release_mem_region(I8042_REGION_START, I8042_REGION_SIZE);
71}
72
73#endif /* _I8042_UNICORE32_H */
74

Warning: That file was not part of the compilation database. It may have many parsing errors.