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

1#ifndef _I8042_IO_H
2#define _I8042_IO_H
3
4/*
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */
9
10/*
11 * Names.
12 */
13
14#define I8042_KBD_PHYS_DESC "isa0060/serio0"
15#define I8042_AUX_PHYS_DESC "isa0060/serio1"
16#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
17
18/*
19 * IRQs.
20 */
21
22#ifdef __alpha__
23# define I8042_KBD_IRQ 1
24# define I8042_AUX_IRQ (RTC_PORT(0) == 0x170 ? 9 : 12) /* Jensen is special */
25#elif defined(__arm__)
26/* defined in include/asm-arm/arch-xxx/irqs.h */
27#include <asm/irq.h>
28#elif defined(CONFIG_SH_CAYMAN)
29#include <asm/irq.h>
30#elif defined(CONFIG_PPC)
31extern int of_i8042_kbd_irq;
32extern int of_i8042_aux_irq;
33# define I8042_KBD_IRQ of_i8042_kbd_irq
34# define I8042_AUX_IRQ of_i8042_aux_irq
35#else
36# define I8042_KBD_IRQ 1
37# define I8042_AUX_IRQ 12
38#endif
39
40
41/*
42 * Register numbers.
43 */
44
45#define I8042_COMMAND_REG 0x64
46#define I8042_STATUS_REG 0x64
47#define I8042_DATA_REG 0x60
48
49static inline int i8042_read_data(void)
50{
51 return inb(I8042_DATA_REG);
52}
53
54static inline int i8042_read_status(void)
55{
56 return inb(I8042_STATUS_REG);
57}
58
59static inline void i8042_write_data(int val)
60{
61 outb(val, I8042_DATA_REG);
62}
63
64static inline void i8042_write_command(int val)
65{
66 outb(val, I8042_COMMAND_REG);
67}
68
69static inline int i8042_platform_init(void)
70{
71/*
72 * On some platforms touching the i8042 data register region can do really
73 * bad things. Because of this the region is always reserved on such boxes.
74 */
75#if defined(CONFIG_PPC)
76 if (check_legacy_ioport(I8042_DATA_REG))
77 return -ENODEV;
78#endif
79#if !defined(__sh__) && !defined(__alpha__)
80 if (!request_region(I8042_DATA_REG, 16, "i8042"))
81 return -EBUSY;
82#endif
83
84 i8042_reset = I8042_RESET_ALWAYS;
85 return 0;
86}
87
88static inline void i8042_platform_exit(void)
89{
90#if !defined(__sh__) && !defined(__alpha__)
91 release_region(I8042_DATA_REG, 16);
92#endif
93}
94
95#endif /* _I8042_IO_H */
96

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