74 lines
1.5 KiB
C
Executable file
74 lines
1.5 KiB
C
Executable file
/*
|
|
* 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 */
|