diff options
Diffstat (limited to 'drivers/input/mouse/trackpoint.h')
| -rw-r--r-- | drivers/input/mouse/trackpoint.h | 50 |
1 files changed, 28 insertions, 22 deletions
diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h index ecd0547964a5..eb5412904fe0 100644 --- a/drivers/input/mouse/trackpoint.h +++ b/drivers/input/mouse/trackpoint.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IBM TrackPoint PS/2 mouse driver * * Stephen Evanchik <evanchsa@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. */ #ifndef _TRACKPOINT_H @@ -21,9 +18,18 @@ #define TP_COMMAND 0xE2 /* Commands start with this */ #define TP_READ_ID 0xE1 /* Sent for device identification */ -#define TP_MAGIC_IDENT 0x01 /* Sent after a TP_READ_ID followed */ - /* by the firmware ID */ +/* + * Valid first byte responses to the "Read Secondary ID" (0xE1) command. + * 0x01 was the original IBM trackpoint, others implement very limited + * subset of trackpoint features. + */ +#define TP_VARIANT_IBM 0x01 +#define TP_VARIANT_ALPS 0x02 +#define TP_VARIANT_ELAN 0x03 +#define TP_VARIANT_NXP 0x04 +#define TP_VARIANT_JYT_SYNAPTICS 0x05 +#define TP_VARIANT_SYNAPTICS 0x06 /* * Commands @@ -70,6 +76,9 @@ #define TP_UP_THRESH 0x5A /* Used to generate a 'click' on Z-axis */ #define TP_Z_TIME 0x5E /* How sharp of a press */ #define TP_JENKS_CURV 0x5D /* Minimum curvature for double click */ +#define TP_DRIFT_TIME 0x5F /* How long a 'hands off' condition */ + /* must last (x*107ms) for drift */ + /* correction to occur */ /* * Toggling Flag bits @@ -120,6 +129,7 @@ #define TP_DEF_UP_THRESH 0xFF #define TP_DEF_Z_TIME 0x26 #define TP_DEF_JENKS_CURV 0x87 +#define TP_DEF_DRIFT_TIME 0x05 /* Toggles */ #define TP_DEF_MB 0x00 @@ -131,26 +141,22 @@ #define MAKE_PS2_CMD(params, results, cmd) ((params<<12) | (results<<8) | (cmd)) -struct trackpoint_data -{ - unsigned char sensitivity, speed, inertia, reach; - unsigned char draghys, mindrag; - unsigned char thresh, upthresh; - unsigned char ztime, jenks; +struct trackpoint_data { + u8 variant_id; + u8 firmware_id; + + u8 sensitivity, speed, inertia, reach; + u8 draghys, mindrag; + u8 thresh, upthresh; + u8 ztime, jenks; + u8 drift_time; /* toggles */ - unsigned char press_to_select; - unsigned char skipback; - unsigned char ext_dev; + bool press_to_select; + bool skipback; + bool ext_dev; }; -#ifdef CONFIG_MOUSE_PS2_TRACKPOINT int trackpoint_detect(struct psmouse *psmouse, bool set_properties); -#else -inline int trackpoint_detect(struct psmouse *psmouse, bool set_properties) -{ - return -ENOSYS; -} -#endif /* CONFIG_MOUSE_PS2_TRACKPOINT */ #endif /* _TRACKPOINT_H */ |