input/serio/i8042-ip22io.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 #ifndef _I8042_IP22_H
0003 #define _I8042_IP22_H
0004
0005 #include <asm/sgi/ioc.h>
0006 #include <asm/sgi/ip22.h>
0007
0008
0009 /*
0010  * Names.
0011  */
0012
0013 #define I8042_KBD_PHYS_DESC "hpc3ps2/serio0"
0014 #define I8042_AUX_PHYS_DESC "hpc3ps2/serio1"
0015 #define I8042_MUX_PHYS_DESC "hpc3ps2/serio%d"
0016
0017 /*
0018  * IRQs.
0019  */
0020
0021 #define I8042_KBD_IRQ SGI_KEYBD_IRQ
0022 #define I8042_AUX_IRQ SGI_KEYBD_IRQ
0023
0024 /*
0025  * Register numbers.
0026  */
0027
0028 #define I8042_COMMAND_REG   ((unsigned long)&sgioc->kbdmouse.command)
0029 #define I8042_STATUS_REG    ((unsigned long)&sgioc->kbdmouse.command)
0030 #define I8042_DATA_REG      ((unsigned long)&sgioc->kbdmouse.data)
0031
0032 static inline int i8042_read_data(void)
0033 {
0034     return sgioc->kbdmouse.data;
0035 }
0036
0037 static inline int i8042_read_status(void)
0038 {
0039     return sgioc->kbdmouse.command;
0040 }
0041
0042 static inline void i8042_write_data(int val)
0043 {
0044     sgioc->kbdmouse.data = val;
0045 }
0046
0047 static inline void i8042_write_command(int val)
0048 {
0049     sgioc->kbdmouse.command = val;
0050 }
0051
0052 static inline int i8042_platform_init(void)
0053 {
0054 #if 0
0055     /* XXX sgi_kh is a virtual address */
0056     if (!request_mem_region(sgi_kh, sizeof(struct hpc_keyb), "i8042"))
0057         return -EBUSY;
0058 #endif
0059
0060     i8042_reset = I8042_RESET_ALWAYS;
0061
0062     return 0;
0063 }
0064
0065 static inline void i8042_platform_exit(void)
0066 {
0067 #if 0
0068     release_mem_region(JAZZ_KEYBOARD_ADDRESS, sizeof(struct hpc_keyb));
0069 #endif
0070 }
0071
0072 #endif /* _I8042_IP22_H */