| /* |
| * Code specific to PKUnity SoC and UniCore ISA |
| * |
| * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn> |
| * Copyright (C) 2001-2011 Guan Xuetao |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #ifndef _I8042_UNICORE32_H |
| #define _I8042_UNICORE32_H |
| |
| #include <mach/hardware.h> |
| |
| /* |
| * Names. |
| */ |
| #define I8042_KBD_PHYS_DESC "isa0060/serio0" |
| #define I8042_AUX_PHYS_DESC "isa0060/serio1" |
| #define I8042_MUX_PHYS_DESC "isa0060/serio%d" |
| |
| /* |
| * IRQs. |
| */ |
| #define I8042_KBD_IRQ IRQ_PS2_KBD |
| #define I8042_AUX_IRQ IRQ_PS2_AUX |
| |
| /* |
| * Register numbers. |
| */ |
| #define I8042_COMMAND_REG PS2_COMMAND |
| #define I8042_STATUS_REG PS2_STATUS |
| #define I8042_DATA_REG PS2_DATA |
| |
| #define I8042_REGION_START (resource_size_t)(PS2_DATA) |
| #define I8042_REGION_SIZE (resource_size_t)(16) |
| |
| static inline int i8042_read_data(void) |
| { |
| return readb(I8042_DATA_REG); |
| } |
| |
| static inline int i8042_read_status(void) |
| { |
| return readb(I8042_STATUS_REG); |
| } |
| |
| static inline void i8042_write_data(int val) |
| { |
| writeb(val, I8042_DATA_REG); |
| } |
| |
| static inline void i8042_write_command(int val) |
| { |
| writeb(val, I8042_COMMAND_REG); |
| } |
| |
| static inline int i8042_platform_init(void) |
| { |
| if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042")) |
| return -EBUSY; |
| |
| i8042_reset = I8042_RESET_ALWAYS; |
| return 0; |
| } |
| |
| static inline void i8042_platform_exit(void) |
| { |
| release_mem_region(I8042_REGION_START, I8042_REGION_SIZE); |
| } |
| |
| #endif /* _I8042_UNICORE32_H */ |
