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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/i8042.h
1 /* SPDX-License-Identifier: GPL-2.0-only */
6 #include <linux/types.h>
12 #define I8042_CMD_CTL_RCTR 0x0120
13 #define I8042_CMD_CTL_WCTR 0x1060
14 #define I8042_CMD_CTL_TEST 0x01aa
16 #define I8042_CMD_KBD_DISABLE 0x00ad
17 #define I8042_CMD_KBD_ENABLE 0x00ae
18 #define I8042_CMD_KBD_TEST 0x01ab
19 #define I8042_CMD_KBD_LOOP 0x11d2
21 #define I8042_CMD_AUX_DISABLE 0x00a7
22 #define I8042_CMD_AUX_ENABLE 0x00a8
23 #define I8042_CMD_AUX_TEST 0x01a9
24 #define I8042_CMD_AUX_SEND 0x10d4
25 #define I8042_CMD_AUX_LOOP 0x11d3
27 #define I8042_CMD_MUX_PFX 0x0090
28 #define I8042_CMD_MUX_SEND 0x1090
31 * Status register bits.
34 #define I8042_STR_PARITY 0x80
35 #define I8042_STR_TIMEOUT 0x40
36 #define I8042_STR_AUXDATA 0x20
37 #define I8042_STR_KEYLOCK 0x10
38 #define I8042_STR_CMDDAT 0x08
39 #define I8042_STR_MUXERR 0x04
40 #define I8042_STR_IBF 0x02
41 #define I8042_STR_OBF 0x01
44 * Control register bits.
47 #define I8042_CTR_KBDINT 0x01
48 #define I8042_CTR_AUXINT 0x02
49 #define I8042_CTR_IGNKEYLOCK 0x08
50 #define I8042_CTR_KBDDIS 0x10
51 #define I8042_CTR_AUXDIS 0x20
52 #define I8042_CTR_XLATE 0x40
56 #if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE)
58 void i8042_lock_chip(void);
59 void i8042_unlock_chip(void);
60 int i8042_command(unsigned char *param
, int command
);
61 int i8042_install_filter(bool (*filter
)(unsigned char data
, unsigned char str
,
62 struct serio
*serio
));
63 int i8042_remove_filter(bool (*filter
)(unsigned char data
, unsigned char str
,
64 struct serio
*serio
));
68 static inline void i8042_lock_chip(void)
72 static inline void i8042_unlock_chip(void)
76 static inline int i8042_command(unsigned char *param
, int command
)
81 static inline int i8042_install_filter(bool (*filter
)(unsigned char data
, unsigned char str
,
87 static inline int i8042_remove_filter(bool (*filter
)(unsigned char data
, unsigned char str
,