137 lines
2.5 KiB
C
137 lines
2.5 KiB
C
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#ifndef _I8042_PPCIO_H
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#define _I8042_PPCIO_H
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#if defined(CONFIG_WALNUT)
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#define I8042_KBD_IRQ 25
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#define I8042_AUX_IRQ 26
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#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
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#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
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#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
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extern void *kb_cs;
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extern void *kb_data;
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#define I8042_COMMAND_REG (*(int *)kb_cs)
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#define I8042_DATA_REG (*(int *)kb_data)
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static inline int i8042_read_data(void)
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{
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return readb(kb_data);
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}
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static inline int i8042_read_status(void)
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{
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return readb(kb_cs);
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}
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static inline void i8042_write_data(int val)
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{
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writeb(val, kb_data);
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}
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static inline void i8042_write_command(int val)
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{
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writeb(val, kb_cs);
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}
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static inline int i8042_platform_init(void)
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{
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i8042_reset = 1;
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return 0;
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}
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static inline void i8042_platform_exit(void)
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{
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}
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#elif defined(CONFIG_SPRUCE)
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#define I8042_KBD_IRQ 22
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#define I8042_AUX_IRQ 21
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#define I8042_KBD_PHYS_DESC "spruceps2/serio0"
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#define I8042_AUX_PHYS_DESC "spruceps2/serio1"
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#define I8042_MUX_PHYS_DESC "spruceps2/serio%d"
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#define I8042_COMMAND_REG 0xff810000
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#define I8042_DATA_REG 0xff810001
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static inline int i8042_read_data(void)
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{
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unsigned long kbd_data;
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__raw_writel(0x00000088, 0xff500008);
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eieio();
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__raw_writel(0x03000000, 0xff50000c);
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eieio();
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asm volatile("lis 7,0xff88 \n\
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lswi 6,7,0x8 \n\
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mr %0,6"
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: "=r" (kbd_data) :: "6", "7");
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__raw_writel(0x00000000, 0xff50000c);
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eieio();
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return (unsigned char)(kbd_data >> 24);
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}
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static inline int i8042_read_status(void)
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{
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unsigned long kbd_status;
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__raw_writel(0x00000088, 0xff500008);
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eieio();
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__raw_writel(0x03000000, 0xff50000c);
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eieio();
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asm volatile("lis 7,0xff88 \n\
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ori 7,7,0x8 \n\
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lswi 6,7,0x8 \n\
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mr %0,6"
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: "=r" (kbd_status) :: "6", "7");
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__raw_writel(0x00000000, 0xff50000c);
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eieio();
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return (unsigned char)(kbd_status >> 24);
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}
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static inline void i8042_write_data(int val)
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{
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*((unsigned char *)0xff810000) = (char)val;
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}
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static inline void i8042_write_command(int val)
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{
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*((unsigned char *)0xff810001) = (char)val;
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}
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static inline int i8042_platform_init(void)
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{
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i8042_reset = 1;
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return 0;
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}
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static inline void i8042_platform_exit(void)
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{
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}
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#else
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#include "i8042-io.h"
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#endif
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#endif /* _I8042_PPCIO_H */
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