projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 425ad52b G |
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 | */ | |
| e5abf78b G |
32 | #define I8042_COMMAND_REG PS2_COMMAND |
| 33 | #define I8042_STATUS_REG PS2_STATUS | |
| 34 | #define I8042_DATA_REG PS2_DATA | |
| 3838b82c | 35 | |
| e5abf78b | 36 | #define I8042_REGION_START (resource_size_t)(PS2_DATA) |
| 3838b82c | 37 | #define I8042_REGION_SIZE (resource_size_t)(16) |
| 425ad52b G |
38 | |
| 39 | static inline int i8042_read_data(void) | |
| 40 | { | |
| 3838b82c | 41 | return readb(I8042_DATA_REG); |
| 425ad52b G |
42 | } |
| 43 | ||
| 44 | static inline int i8042_read_status(void) | |
| 45 | { | |
| 3838b82c | 46 | return readb(I8042_STATUS_REG); |
| 425ad52b G |
47 | } |
| 48 | ||
| 49 | static inline void i8042_write_data(int val) | |
| 50 | { | |
| 3838b82c | 51 | writeb(val, I8042_DATA_REG); |
| 425ad52b G |
52 | } |
| 53 | ||
| 54 | static inline void i8042_write_command(int val) | |
| 55 | { | |
| 3838b82c | 56 | writeb(val, I8042_COMMAND_REG); |
| 425ad52b G |
57 | } |
| 58 | ||
| 59 | static inline int i8042_platform_init(void) | |
| 60 | { | |
| 4517366d | 61 | if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042")) |
| 425ad52b G |
62 | return -EBUSY; |
| 63 | ||
| 64 | i8042_reset = 1; | |
| 65 | return 0; | |
| 66 | } | |
| 67 | ||
| 68 | static inline void i8042_platform_exit(void) | |
| 69 | { | |
| 4517366d | 70 | release_mem_region(I8042_REGION_START, I8042_REGION_SIZE); |
| 425ad52b G |
71 | } |
| 72 | ||
| 73 | #endif /* _I8042_UNICORE32_H */ |