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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/linux/i8042.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/i8042.h')
-rw-r--r-- | include/linux/i8042.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/include/linux/i8042.h b/include/linux/i8042.h new file mode 100644 index 000000000..0261e2fb3 --- /dev/null +++ b/include/linux/i8042.h @@ -0,0 +1,95 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _LINUX_I8042_H +#define _LINUX_I8042_H + + +#include <linux/types.h> + +/* + * Standard commands. + */ + +#define I8042_CMD_CTL_RCTR 0x0120 +#define I8042_CMD_CTL_WCTR 0x1060 +#define I8042_CMD_CTL_TEST 0x01aa + +#define I8042_CMD_KBD_DISABLE 0x00ad +#define I8042_CMD_KBD_ENABLE 0x00ae +#define I8042_CMD_KBD_TEST 0x01ab +#define I8042_CMD_KBD_LOOP 0x11d2 + +#define I8042_CMD_AUX_DISABLE 0x00a7 +#define I8042_CMD_AUX_ENABLE 0x00a8 +#define I8042_CMD_AUX_TEST 0x01a9 +#define I8042_CMD_AUX_SEND 0x10d4 +#define I8042_CMD_AUX_LOOP 0x11d3 + +#define I8042_CMD_MUX_PFX 0x0090 +#define I8042_CMD_MUX_SEND 0x1090 + +/* + * Status register bits. + */ + +#define I8042_STR_PARITY 0x80 +#define I8042_STR_TIMEOUT 0x40 +#define I8042_STR_AUXDATA 0x20 +#define I8042_STR_KEYLOCK 0x10 +#define I8042_STR_CMDDAT 0x08 +#define I8042_STR_MUXERR 0x04 +#define I8042_STR_IBF 0x02 +#define I8042_STR_OBF 0x01 + +/* + * Control register bits. + */ + +#define I8042_CTR_KBDINT 0x01 +#define I8042_CTR_AUXINT 0x02 +#define I8042_CTR_IGNKEYLOCK 0x08 +#define I8042_CTR_KBDDIS 0x10 +#define I8042_CTR_AUXDIS 0x20 +#define I8042_CTR_XLATE 0x40 + +struct serio; + +#if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE) + +void i8042_lock_chip(void); +void i8042_unlock_chip(void); +int i8042_command(unsigned char *param, int command); +int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str, + struct serio *serio)); +int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str, + struct serio *serio)); + +#else + +static inline void i8042_lock_chip(void) +{ +} + +static inline void i8042_unlock_chip(void) +{ +} + +static inline int i8042_command(unsigned char *param, int command) +{ + return -ENODEV; +} + +static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str, + struct serio *serio)) +{ + return -ENODEV; +} + +static inline int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str, + struct serio *serio)) +{ + return -ENODEV; +} + +#endif + +#endif |