1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef _I8042_IP22_H
3 #define _I8042_IP22_H
4 
5 #include <asm/sgi/ioc.h>
6 #include <asm/sgi/ip22.h>
7 
8 
9 /*
10  * Names.
11  */
12 
13 #define I8042_KBD_PHYS_DESC "hpc3ps2/serio0"
14 #define I8042_AUX_PHYS_DESC "hpc3ps2/serio1"
15 #define I8042_MUX_PHYS_DESC "hpc3ps2/serio%d"
16 
17 /*
18  * IRQs.
19  */
20 
21 #define I8042_KBD_IRQ SGI_KEYBD_IRQ
22 #define I8042_AUX_IRQ SGI_KEYBD_IRQ
23 
24 /*
25  * Register numbers.
26  */
27 
28 #define I8042_COMMAND_REG	((unsigned long)&sgioc->kbdmouse.command)
29 #define I8042_STATUS_REG	((unsigned long)&sgioc->kbdmouse.command)
30 #define I8042_DATA_REG		((unsigned long)&sgioc->kbdmouse.data)
31 
32 static inline int i8042_read_data(void)
33 {
34 	return sgioc->kbdmouse.data;
35 }
36 
37 static inline int i8042_read_status(void)
38 {
39 	return sgioc->kbdmouse.command;
40 }
41 
42 static inline void i8042_write_data(int val)
43 {
44 	sgioc->kbdmouse.data = val;
45 }
46 
47 static inline void i8042_write_command(int val)
48 {
49 	sgioc->kbdmouse.command = val;
50 }
51 
52 static inline int i8042_platform_init(void)
53 {
54 #if 0
55 	/* XXX sgi_kh is a virtual address */
56 	if (!request_mem_region(sgi_kh, sizeof(struct hpc_keyb), "i8042"))
57 		return -EBUSY;
58 #endif
59 
60 	i8042_reset = I8042_RESET_ALWAYS;
61 
62 	return 0;
63 }
64 
65 static inline void i8042_platform_exit(void)
66 {
67 #if 0
68 	release_mem_region(JAZZ_KEYBOARD_ADDRESS, sizeof(struct hpc_keyb));
69 #endif
70 }
71 
72 #endif /* _I8042_IP22_H */
73