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/*
* 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 = 1;
return 0;
}
static inline void i8042_platform_exit(void)
{
release_mem_region(I8042_REGION_START, I8042_REGION_SIZE);
}
#endif /* _I8042_UNICORE32_H */
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