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![Bhaskar Chowdhury](/assets/img/avatar_default.png)
s/postive/positive/ Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210222075439.32201-1-unixbhaskar@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
3232 lines
87 KiB
C
3232 lines
87 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ALPS touchpad PS/2 mouse driver
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*
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* Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
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* Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
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* Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
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* Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net>
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*
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* ALPS detection, tap switching and status querying info is taken from
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* tpconfig utility (by C. Scott Ananian and Bruce Kall).
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*/
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/input/mt.h>
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#include <linux/serio.h>
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#include <linux/libps2.h>
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#include <linux/dmi.h>
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#include "psmouse.h"
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#include "alps.h"
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#include "trackpoint.h"
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/*
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* Definitions for ALPS version 3 and 4 command mode protocol
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*/
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#define ALPS_CMD_NIBBLE_10 0x01f2
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#define ALPS_REG_BASE_RUSHMORE 0xc2c0
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#define ALPS_REG_BASE_V7 0xc2c0
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#define ALPS_REG_BASE_PINNACLE 0x0000
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static const struct alps_nibble_commands alps_v3_nibble_commands[] = {
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{ PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */
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{ PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */
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{ PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */
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{ PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */
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{ PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */
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{ PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */
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{ PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */
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{ PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */
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{ PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */
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{ PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */
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{ ALPS_CMD_NIBBLE_10, 0x00 }, /* a */
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{ PSMOUSE_CMD_SETRES, 0x00 }, /* b */
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{ PSMOUSE_CMD_SETRES, 0x01 }, /* c */
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{ PSMOUSE_CMD_SETRES, 0x02 }, /* d */
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{ PSMOUSE_CMD_SETRES, 0x03 }, /* e */
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{ PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */
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};
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static const struct alps_nibble_commands alps_v4_nibble_commands[] = {
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{ PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */
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{ PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */
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{ PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */
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{ PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */
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{ PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */
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{ PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */
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{ PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */
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{ PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */
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{ PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */
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{ PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */
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{ ALPS_CMD_NIBBLE_10, 0x00 }, /* a */
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{ PSMOUSE_CMD_SETRES, 0x00 }, /* b */
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{ PSMOUSE_CMD_SETRES, 0x01 }, /* c */
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{ PSMOUSE_CMD_SETRES, 0x02 }, /* d */
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{ PSMOUSE_CMD_SETRES, 0x03 }, /* e */
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{ PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */
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};
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static const struct alps_nibble_commands alps_v6_nibble_commands[] = {
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{ PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */
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{ PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */
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{ PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */
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{ PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */
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{ PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */
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{ PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */
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{ PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */
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{ PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */
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{ PSMOUSE_CMD_GETID, 0x00 }, /* 8 */
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{ PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */
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{ PSMOUSE_CMD_SETRES, 0x00 }, /* a */
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{ PSMOUSE_CMD_SETRES, 0x01 }, /* b */
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{ PSMOUSE_CMD_SETRES, 0x02 }, /* c */
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{ PSMOUSE_CMD_SETRES, 0x03 }, /* d */
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{ PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */
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{ PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */
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};
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#define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
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#define ALPS_PASS 0x04 /* device has a pass-through port */
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#define ALPS_WHEEL 0x08 /* hardware wheel present */
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#define ALPS_FW_BK_1 0x10 /* front & back buttons present */
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#define ALPS_FW_BK_2 0x20 /* front & back buttons present */
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#define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
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#define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
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6-byte ALPS packet */
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#define ALPS_STICK_BITS 0x100 /* separate stick button bits */
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#define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
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#define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */
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static const struct alps_model_info alps_model_data[] = {
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/*
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* XXX This entry is suspicious. First byte has zero lower nibble,
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* which is what a normal mouse would report. Also, the value 0x0e
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* isn't valid per PS/2 spec.
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*/
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{ { 0x20, 0x02, 0x0e }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } },
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{ { 0x22, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } },
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{ { 0x22, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */
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{ { 0x32, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */
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{ { 0x33, 0x02, 0x0a }, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */
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{ { 0x52, 0x01, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */
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{ { 0x53, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x53, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x60, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, /* HP ze1115 */
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{ { 0x62, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xcf, 0xcf,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
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{ { 0x63, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x63, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x63, 0x02, 0x28 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Fujitsu Siemens S6010 */
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{ { 0x63, 0x02, 0x3c }, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-103 */
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{ { 0x63, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 } }, /* NEC Versa L320 */
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{ { 0x63, 0x02, 0x64 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x63, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D800 */
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{ { 0x73, 0x00, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG */
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{ { 0x73, 0x00, 0x14 }, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */
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{ { 0x73, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
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{ { 0x73, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Ahtec Laptop */
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{ { 0x73, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */
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};
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static const struct alps_protocol_info alps_v3_protocol_data = {
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ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE
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};
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static const struct alps_protocol_info alps_v3_rushmore_data = {
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ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE
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};
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static const struct alps_protocol_info alps_v4_protocol_data = {
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ALPS_PROTO_V4, 0x8f, 0x8f, 0
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};
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static const struct alps_protocol_info alps_v5_protocol_data = {
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ALPS_PROTO_V5, 0xc8, 0xd8, 0
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};
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static const struct alps_protocol_info alps_v7_protocol_data = {
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ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE
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};
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static const struct alps_protocol_info alps_v8_protocol_data = {
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ALPS_PROTO_V8, 0x18, 0x18, 0
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};
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static const struct alps_protocol_info alps_v9_protocol_data = {
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ALPS_PROTO_V9, 0xc8, 0xc8, 0
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};
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/*
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* Some v2 models report the stick buttons in separate bits
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*/
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static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = {
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#if defined(CONFIG_DMI) && defined(CONFIG_X86)
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{
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/* Extrapolated from other entries */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D420"),
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},
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},
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{
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/* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D430"),
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},
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},
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{
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/* Reported-by: Hans de Goede <hdegoede@redhat.com> */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D620"),
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},
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},
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{
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/* Extrapolated from other entries */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D630"),
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},
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},
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#endif
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{ }
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};
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static void alps_set_abs_params_st(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_semi_mt(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_v7(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_ss4_v2(struct alps_data *priv,
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struct input_dev *dev1);
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/* Packet formats are described in Documentation/input/devices/alps.rst */
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static bool alps_is_valid_first_byte(struct alps_data *priv,
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unsigned char data)
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{
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return (data & priv->mask0) == priv->byte0;
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}
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static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2,
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int left, int right, int middle)
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{
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struct input_dev *dev;
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/*
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* If shared button has already been reported on the
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* other device (dev2) then this event should be also
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* sent through that device.
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*/
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dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1;
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input_report_key(dev, BTN_LEFT, left);
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dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1;
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input_report_key(dev, BTN_RIGHT, right);
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dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1;
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input_report_key(dev, BTN_MIDDLE, middle);
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/*
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* Sync the _other_ device now, we'll do the first
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* device later once we report the rest of the events.
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*/
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if (dev2)
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input_sync(dev2);
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}
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static void alps_process_packet_v1_v2(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = psmouse->dev;
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struct input_dev *dev2 = priv->dev2;
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int x, y, z, ges, fin, left, right, middle;
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int back = 0, forward = 0;
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if (priv->proto_version == ALPS_PROTO_V1) {
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left = packet[2] & 0x10;
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right = packet[2] & 0x08;
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middle = 0;
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x = packet[1] | ((packet[0] & 0x07) << 7);
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y = packet[4] | ((packet[3] & 0x07) << 7);
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z = packet[5];
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} else {
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left = packet[3] & 1;
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right = packet[3] & 2;
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middle = packet[3] & 4;
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x = packet[1] | ((packet[2] & 0x78) << (7 - 3));
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y = packet[4] | ((packet[3] & 0x70) << (7 - 4));
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z = packet[5];
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}
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if (priv->flags & ALPS_FW_BK_1) {
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back = packet[0] & 0x10;
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forward = packet[2] & 4;
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}
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if (priv->flags & ALPS_FW_BK_2) {
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back = packet[3] & 4;
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forward = packet[2] & 4;
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if ((middle = forward && back))
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forward = back = 0;
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}
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ges = packet[2] & 1;
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fin = packet[2] & 2;
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if ((priv->flags & ALPS_DUALPOINT) && z == 127) {
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input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
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input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
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alps_report_buttons(dev2, dev, left, right, middle);
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input_sync(dev2);
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return;
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}
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/* Some models have separate stick button bits */
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if (priv->flags & ALPS_STICK_BITS) {
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left |= packet[0] & 1;
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right |= packet[0] & 2;
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middle |= packet[0] & 4;
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}
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alps_report_buttons(dev, dev2, left, right, middle);
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/* Convert hardware tap to a reasonable Z value */
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if (ges && !fin)
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z = 40;
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/*
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* A "tap and drag" operation is reported by the hardware as a transition
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* from (!fin && ges) to (fin && ges). This should be translated to the
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* sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
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*/
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if (ges && fin && !priv->prev_fin) {
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input_report_abs(dev, ABS_X, x);
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input_report_abs(dev, ABS_Y, y);
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input_report_abs(dev, ABS_PRESSURE, 0);
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input_report_key(dev, BTN_TOOL_FINGER, 0);
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input_sync(dev);
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}
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priv->prev_fin = fin;
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if (z > 30)
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input_report_key(dev, BTN_TOUCH, 1);
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if (z < 25)
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input_report_key(dev, BTN_TOUCH, 0);
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if (z > 0) {
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input_report_abs(dev, ABS_X, x);
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input_report_abs(dev, ABS_Y, y);
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}
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input_report_abs(dev, ABS_PRESSURE, z);
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input_report_key(dev, BTN_TOOL_FINGER, z > 0);
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if (priv->flags & ALPS_WHEEL)
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input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
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if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
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input_report_key(dev, BTN_FORWARD, forward);
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input_report_key(dev, BTN_BACK, back);
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}
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if (priv->flags & ALPS_FOUR_BUTTONS) {
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input_report_key(dev, BTN_0, packet[2] & 4);
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input_report_key(dev, BTN_1, packet[0] & 0x10);
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input_report_key(dev, BTN_2, packet[3] & 4);
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input_report_key(dev, BTN_3, packet[0] & 0x20);
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}
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input_sync(dev);
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}
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static void alps_get_bitmap_points(unsigned int map,
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struct alps_bitmap_point *low,
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struct alps_bitmap_point *high,
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int *fingers)
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{
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struct alps_bitmap_point *point;
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int i, bit, prev_bit = 0;
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point = low;
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for (i = 0; map != 0; i++, map >>= 1) {
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bit = map & 1;
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if (bit) {
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if (!prev_bit) {
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point->start_bit = i;
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point->num_bits = 0;
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(*fingers)++;
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}
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point->num_bits++;
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} else {
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if (prev_bit)
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point = high;
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}
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prev_bit = bit;
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}
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}
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/*
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* Process bitmap data from semi-mt protocols. Returns the number of
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* fingers detected. A return value of 0 means at least one of the
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* bitmaps was empty.
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*
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* The bitmaps don't have enough data to track fingers, so this function
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* only generates points representing a bounding box of all contacts.
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|
* These points are returned in fields->mt when the return value
|
|
* is greater than 0.
|
|
*/
|
|
static int alps_process_bitmap(struct alps_data *priv,
|
|
struct alps_fields *fields)
|
|
{
|
|
int i, fingers_x = 0, fingers_y = 0, fingers, closest;
|
|
struct alps_bitmap_point x_low = {0,}, x_high = {0,};
|
|
struct alps_bitmap_point y_low = {0,}, y_high = {0,};
|
|
struct input_mt_pos corner[4];
|
|
|
|
if (!fields->x_map || !fields->y_map)
|
|
return 0;
|
|
|
|
alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x);
|
|
alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y);
|
|
|
|
/*
|
|
* Fingers can overlap, so we use the maximum count of fingers
|
|
* on either axis as the finger count.
|
|
*/
|
|
fingers = max(fingers_x, fingers_y);
|
|
|
|
/*
|
|
* If an axis reports only a single contact, we have overlapping or
|
|
* adjacent fingers. Divide the single contact between the two points.
|
|
*/
|
|
if (fingers_x == 1) {
|
|
i = (x_low.num_bits - 1) / 2;
|
|
x_low.num_bits = x_low.num_bits - i;
|
|
x_high.start_bit = x_low.start_bit + i;
|
|
x_high.num_bits = max(i, 1);
|
|
}
|
|
if (fingers_y == 1) {
|
|
i = (y_low.num_bits - 1) / 2;
|
|
y_low.num_bits = y_low.num_bits - i;
|
|
y_high.start_bit = y_low.start_bit + i;
|
|
y_high.num_bits = max(i, 1);
|
|
}
|
|
|
|
/* top-left corner */
|
|
corner[0].x =
|
|
(priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
|
|
(2 * (priv->x_bits - 1));
|
|
corner[0].y =
|
|
(priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
|
|
(2 * (priv->y_bits - 1));
|
|
|
|
/* top-right corner */
|
|
corner[1].x =
|
|
(priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) /
|
|
(2 * (priv->x_bits - 1));
|
|
corner[1].y =
|
|
(priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
|
|
(2 * (priv->y_bits - 1));
|
|
|
|
/* bottom-right corner */
|
|
corner[2].x =
|
|
(priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) /
|
|
(2 * (priv->x_bits - 1));
|
|
corner[2].y =
|
|
(priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) /
|
|
(2 * (priv->y_bits - 1));
|
|
|
|
/* bottom-left corner */
|
|
corner[3].x =
|
|
(priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
|
|
(2 * (priv->x_bits - 1));
|
|
corner[3].y =
|
|
(priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) /
|
|
(2 * (priv->y_bits - 1));
|
|
|
|
/* x-bitmap order is reversed on v5 touchpads */
|
|
if (priv->proto_version == ALPS_PROTO_V5) {
|
|
for (i = 0; i < 4; i++)
|
|
corner[i].x = priv->x_max - corner[i].x;
|
|
}
|
|
|
|
/* y-bitmap order is reversed on v3 and v4 touchpads */
|
|
if (priv->proto_version == ALPS_PROTO_V3 ||
|
|
priv->proto_version == ALPS_PROTO_V4) {
|
|
for (i = 0; i < 4; i++)
|
|
corner[i].y = priv->y_max - corner[i].y;
|
|
}
|
|
|
|
/*
|
|
* We only select a corner for the second touch once per 2 finger
|
|
* touch sequence to avoid the chosen corner (and thus the coordinates)
|
|
* jumping around when the first touch is in the middle.
|
|
*/
|
|
if (priv->second_touch == -1) {
|
|
/* Find corner closest to our st coordinates */
|
|
closest = 0x7fffffff;
|
|
for (i = 0; i < 4; i++) {
|
|
int dx = fields->st.x - corner[i].x;
|
|
int dy = fields->st.y - corner[i].y;
|
|
int distance = dx * dx + dy * dy;
|
|
|
|
if (distance < closest) {
|
|
priv->second_touch = i;
|
|
closest = distance;
|
|
}
|
|
}
|
|
/* And select the opposite corner to use for the 2nd touch */
|
|
priv->second_touch = (priv->second_touch + 2) % 4;
|
|
}
|
|
|
|
fields->mt[0] = fields->st;
|
|
fields->mt[1] = corner[priv->second_touch];
|
|
|
|
return fingers;
|
|
}
|
|
|
|
static void alps_set_slot(struct input_dev *dev, int slot, int x, int y)
|
|
{
|
|
input_mt_slot(dev, slot);
|
|
input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
|
|
input_report_abs(dev, ABS_MT_POSITION_X, x);
|
|
input_report_abs(dev, ABS_MT_POSITION_Y, y);
|
|
}
|
|
|
|
static void alps_report_mt_data(struct psmouse *psmouse, int n)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct input_dev *dev = psmouse->dev;
|
|
struct alps_fields *f = &priv->f;
|
|
int i, slot[MAX_TOUCHES];
|
|
|
|
input_mt_assign_slots(dev, slot, f->mt, n, 0);
|
|
for (i = 0; i < n; i++)
|
|
alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y);
|
|
|
|
input_mt_sync_frame(dev);
|
|
}
|
|
|
|
static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct input_dev *dev = psmouse->dev;
|
|
struct alps_fields *f = &priv->f;
|
|
|
|
/* Use st data when we don't have mt data */
|
|
if (fingers < 2) {
|
|
f->mt[0].x = f->st.x;
|
|
f->mt[0].y = f->st.y;
|
|
fingers = f->pressure > 0 ? 1 : 0;
|
|
priv->second_touch = -1;
|
|
}
|
|
|
|
if (fingers >= 1)
|
|
alps_set_slot(dev, 0, f->mt[0].x, f->mt[0].y);
|
|
if (fingers >= 2)
|
|
alps_set_slot(dev, 1, f->mt[1].x, f->mt[1].y);
|
|
input_mt_sync_frame(dev);
|
|
|
|
input_mt_report_finger_count(dev, fingers);
|
|
|
|
input_report_key(dev, BTN_LEFT, f->left);
|
|
input_report_key(dev, BTN_RIGHT, f->right);
|
|
input_report_key(dev, BTN_MIDDLE, f->middle);
|
|
|
|
input_report_abs(dev, ABS_PRESSURE, f->pressure);
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev = priv->dev2;
|
|
int x, y, z, left, right, middle;
|
|
|
|
/* It should be a DualPoint when received trackstick packet */
|
|
if (!(priv->flags & ALPS_DUALPOINT)) {
|
|
psmouse_warn(psmouse,
|
|
"Rejected trackstick packet from non DualPoint device");
|
|
return;
|
|
}
|
|
|
|
/* Sanity check packet */
|
|
if (!(packet[0] & 0x40)) {
|
|
psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* There's a special packet that seems to indicate the end
|
|
* of a stream of trackstick data. Filter these out.
|
|
*/
|
|
if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f)
|
|
return;
|
|
|
|
x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f));
|
|
y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f));
|
|
z = packet[4] & 0x7f;
|
|
|
|
/*
|
|
* The x and y values tend to be quite large, and when used
|
|
* alone the trackstick is difficult to use. Scale them down
|
|
* to compensate.
|
|
*/
|
|
x /= 8;
|
|
y /= 8;
|
|
|
|
input_report_rel(dev, REL_X, x);
|
|
input_report_rel(dev, REL_Y, -y);
|
|
input_report_abs(dev, ABS_PRESSURE, z);
|
|
|
|
/*
|
|
* Most ALPS models report the trackstick buttons in the touchpad
|
|
* packets, but a few report them here. No reliable way has been
|
|
* found to differentiate between the models upfront, so we enable
|
|
* the quirk in response to seeing a button press in the trackstick
|
|
* packet.
|
|
*/
|
|
left = packet[3] & 0x01;
|
|
right = packet[3] & 0x02;
|
|
middle = packet[3] & 0x04;
|
|
|
|
if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) &&
|
|
(left || right || middle))
|
|
priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS;
|
|
|
|
if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) {
|
|
input_report_key(dev, BTN_LEFT, left);
|
|
input_report_key(dev, BTN_RIGHT, right);
|
|
input_report_key(dev, BTN_MIDDLE, middle);
|
|
}
|
|
|
|
input_sync(dev);
|
|
return;
|
|
}
|
|
|
|
static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p)
|
|
{
|
|
f->left = !!(p[3] & 0x01);
|
|
f->right = !!(p[3] & 0x02);
|
|
f->middle = !!(p[3] & 0x04);
|
|
|
|
f->ts_left = !!(p[3] & 0x10);
|
|
f->ts_right = !!(p[3] & 0x20);
|
|
f->ts_middle = !!(p[3] & 0x40);
|
|
}
|
|
|
|
static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p,
|
|
struct psmouse *psmouse)
|
|
{
|
|
f->first_mp = !!(p[4] & 0x40);
|
|
f->is_mp = !!(p[0] & 0x40);
|
|
|
|
if (f->is_mp) {
|
|
f->fingers = (p[5] & 0x3) + 1;
|
|
f->x_map = ((p[4] & 0x7e) << 8) |
|
|
((p[1] & 0x7f) << 2) |
|
|
((p[0] & 0x30) >> 4);
|
|
f->y_map = ((p[3] & 0x70) << 4) |
|
|
((p[2] & 0x7f) << 1) |
|
|
(p[4] & 0x01);
|
|
} else {
|
|
f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
|
|
((p[0] & 0x30) >> 4);
|
|
f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
|
|
f->pressure = p[5] & 0x7f;
|
|
|
|
alps_decode_buttons_v3(f, p);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p,
|
|
struct psmouse *psmouse)
|
|
{
|
|
f->first_mp = !!(p[4] & 0x40);
|
|
f->is_mp = !!(p[5] & 0x40);
|
|
|
|
if (f->is_mp) {
|
|
f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1;
|
|
f->x_map = ((p[5] & 0x10) << 11) |
|
|
((p[4] & 0x7e) << 8) |
|
|
((p[1] & 0x7f) << 2) |
|
|
((p[0] & 0x30) >> 4);
|
|
f->y_map = ((p[5] & 0x20) << 6) |
|
|
((p[3] & 0x70) << 4) |
|
|
((p[2] & 0x7f) << 1) |
|
|
(p[4] & 0x01);
|
|
} else {
|
|
f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
|
|
((p[0] & 0x30) >> 4);
|
|
f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
|
|
f->pressure = p[5] & 0x7f;
|
|
|
|
alps_decode_buttons_v3(f, p);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p,
|
|
struct psmouse *psmouse)
|
|
{
|
|
u64 palm_data = 0;
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
f->first_mp = !!(p[0] & 0x02);
|
|
f->is_mp = !!(p[0] & 0x20);
|
|
|
|
if (!f->is_mp) {
|
|
f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7));
|
|
f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3));
|
|
f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f;
|
|
alps_decode_buttons_v3(f, p);
|
|
} else {
|
|
f->fingers = ((p[0] & 0x6) >> 1 |
|
|
(p[0] & 0x10) >> 2);
|
|
|
|
palm_data = (p[1] & 0x7f) |
|
|
((p[2] & 0x7f) << 7) |
|
|
((p[4] & 0x7f) << 14) |
|
|
((p[5] & 0x7f) << 21) |
|
|
((p[3] & 0x07) << 28) |
|
|
(((u64)p[3] & 0x70) << 27) |
|
|
(((u64)p[0] & 0x01) << 34);
|
|
|
|
/* Y-profile is stored in P(0) to p(n-1), n = y_bits; */
|
|
f->y_map = palm_data & (BIT(priv->y_bits) - 1);
|
|
|
|
/* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */
|
|
f->x_map = (palm_data >> priv->y_bits) &
|
|
(BIT(priv->x_bits) - 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev2 = priv->dev2;
|
|
struct alps_fields *f = &priv->f;
|
|
int fingers = 0;
|
|
|
|
memset(f, 0, sizeof(*f));
|
|
|
|
priv->decode_fields(f, packet, psmouse);
|
|
|
|
/*
|
|
* There's no single feature of touchpad position and bitmap packets
|
|
* that can be used to distinguish between them. We rely on the fact
|
|
* that a bitmap packet should always follow a position packet with
|
|
* bit 6 of packet[4] set.
|
|
*/
|
|
if (priv->multi_packet) {
|
|
/*
|
|
* Sometimes a position packet will indicate a multi-packet
|
|
* sequence, but then what follows is another position
|
|
* packet. Check for this, and when it happens process the
|
|
* position packet as usual.
|
|
*/
|
|
if (f->is_mp) {
|
|
fingers = f->fingers;
|
|
/*
|
|
* Bitmap processing uses position packet's coordinate
|
|
* data, so we need to do decode it first.
|
|
*/
|
|
priv->decode_fields(f, priv->multi_data, psmouse);
|
|
if (alps_process_bitmap(priv, f) == 0)
|
|
fingers = 0; /* Use st data */
|
|
} else {
|
|
priv->multi_packet = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Bit 6 of byte 0 is not usually set in position packets. The only
|
|
* times it seems to be set is in situations where the data is
|
|
* suspect anyway, e.g. a palm resting flat on the touchpad. Given
|
|
* this combined with the fact that this bit is useful for filtering
|
|
* out misidentified bitmap packets, we reject anything with this
|
|
* bit set.
|
|
*/
|
|
if (f->is_mp)
|
|
return;
|
|
|
|
if (!priv->multi_packet && f->first_mp) {
|
|
priv->multi_packet = 1;
|
|
memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
|
|
return;
|
|
}
|
|
|
|
priv->multi_packet = 0;
|
|
|
|
/*
|
|
* Sometimes the hardware sends a single packet with z = 0
|
|
* in the middle of a stream. Real releases generate packets
|
|
* with x, y, and z all zero, so these seem to be flukes.
|
|
* Ignore them.
|
|
*/
|
|
if (f->st.x && f->st.y && !f->pressure)
|
|
return;
|
|
|
|
alps_report_semi_mt_data(psmouse, fingers);
|
|
|
|
if ((priv->flags & ALPS_DUALPOINT) &&
|
|
!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
|
|
input_report_key(dev2, BTN_LEFT, f->ts_left);
|
|
input_report_key(dev2, BTN_RIGHT, f->ts_right);
|
|
input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
|
|
input_sync(dev2);
|
|
}
|
|
}
|
|
|
|
static void alps_process_packet_v3(struct psmouse *psmouse)
|
|
{
|
|
unsigned char *packet = psmouse->packet;
|
|
|
|
/*
|
|
* v3 protocol packets come in three types, two representing
|
|
* touchpad data and one representing trackstick data.
|
|
* Trackstick packets seem to be distinguished by always
|
|
* having 0x3f in the last byte. This value has never been
|
|
* observed in the last byte of either of the other types
|
|
* of packets.
|
|
*/
|
|
if (packet[5] == 0x3f) {
|
|
alps_process_trackstick_packet_v3(psmouse);
|
|
return;
|
|
}
|
|
|
|
alps_process_touchpad_packet_v3_v5(psmouse);
|
|
}
|
|
|
|
static void alps_process_packet_v6(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev = psmouse->dev;
|
|
struct input_dev *dev2 = priv->dev2;
|
|
int x, y, z;
|
|
|
|
/*
|
|
* We can use Byte5 to distinguish if the packet is from Touchpad
|
|
* or Trackpoint.
|
|
* Touchpad: 0 - 0x7E
|
|
* Trackpoint: 0x7F
|
|
*/
|
|
if (packet[5] == 0x7F) {
|
|
/* It should be a DualPoint when received Trackpoint packet */
|
|
if (!(priv->flags & ALPS_DUALPOINT)) {
|
|
psmouse_warn(psmouse,
|
|
"Rejected trackstick packet from non DualPoint device");
|
|
return;
|
|
}
|
|
|
|
/* Trackpoint packet */
|
|
x = packet[1] | ((packet[3] & 0x20) << 2);
|
|
y = packet[2] | ((packet[3] & 0x40) << 1);
|
|
z = packet[4];
|
|
|
|
/* To prevent the cursor jump when finger lifted */
|
|
if (x == 0x7F && y == 0x7F && z == 0x7F)
|
|
x = y = z = 0;
|
|
|
|
/* Divide 4 since trackpoint's speed is too fast */
|
|
input_report_rel(dev2, REL_X, (char)x / 4);
|
|
input_report_rel(dev2, REL_Y, -((char)y / 4));
|
|
|
|
psmouse_report_standard_buttons(dev2, packet[3]);
|
|
|
|
input_sync(dev2);
|
|
return;
|
|
}
|
|
|
|
/* Touchpad packet */
|
|
x = packet[1] | ((packet[3] & 0x78) << 4);
|
|
y = packet[2] | ((packet[4] & 0x78) << 4);
|
|
z = packet[5];
|
|
|
|
if (z > 30)
|
|
input_report_key(dev, BTN_TOUCH, 1);
|
|
if (z < 25)
|
|
input_report_key(dev, BTN_TOUCH, 0);
|
|
|
|
if (z > 0) {
|
|
input_report_abs(dev, ABS_X, x);
|
|
input_report_abs(dev, ABS_Y, y);
|
|
}
|
|
|
|
input_report_abs(dev, ABS_PRESSURE, z);
|
|
input_report_key(dev, BTN_TOOL_FINGER, z > 0);
|
|
|
|
/* v6 touchpad does not have middle button */
|
|
packet[3] &= ~BIT(2);
|
|
psmouse_report_standard_buttons(dev2, packet[3]);
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static void alps_process_packet_v4(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct alps_fields *f = &priv->f;
|
|
int offset;
|
|
|
|
/*
|
|
* v4 has a 6-byte encoding for bitmap data, but this data is
|
|
* broken up between 3 normal packets. Use priv->multi_packet to
|
|
* track our position in the bitmap packet.
|
|
*/
|
|
if (packet[6] & 0x40) {
|
|
/* sync, reset position */
|
|
priv->multi_packet = 0;
|
|
}
|
|
|
|
if (WARN_ON_ONCE(priv->multi_packet > 2))
|
|
return;
|
|
|
|
offset = 2 * priv->multi_packet;
|
|
priv->multi_data[offset] = packet[6];
|
|
priv->multi_data[offset + 1] = packet[7];
|
|
|
|
f->left = !!(packet[4] & 0x01);
|
|
f->right = !!(packet[4] & 0x02);
|
|
|
|
f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
|
|
((packet[0] & 0x30) >> 4);
|
|
f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
|
|
f->pressure = packet[5] & 0x7f;
|
|
|
|
if (++priv->multi_packet > 2) {
|
|
priv->multi_packet = 0;
|
|
|
|
f->x_map = ((priv->multi_data[2] & 0x1f) << 10) |
|
|
((priv->multi_data[3] & 0x60) << 3) |
|
|
((priv->multi_data[0] & 0x3f) << 2) |
|
|
((priv->multi_data[1] & 0x60) >> 5);
|
|
f->y_map = ((priv->multi_data[5] & 0x01) << 10) |
|
|
((priv->multi_data[3] & 0x1f) << 5) |
|
|
(priv->multi_data[1] & 0x1f);
|
|
|
|
f->fingers = alps_process_bitmap(priv, f);
|
|
}
|
|
|
|
alps_report_semi_mt_data(psmouse, f->fingers);
|
|
}
|
|
|
|
static bool alps_is_valid_package_v7(struct psmouse *psmouse)
|
|
{
|
|
switch (psmouse->pktcnt) {
|
|
case 3:
|
|
return (psmouse->packet[2] & 0x40) == 0x40;
|
|
case 4:
|
|
return (psmouse->packet[3] & 0x48) == 0x48;
|
|
case 6:
|
|
return (psmouse->packet[5] & 0x40) == 0x00;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static unsigned char alps_get_packet_id_v7(char *byte)
|
|
{
|
|
unsigned char packet_id;
|
|
|
|
if (byte[4] & 0x40)
|
|
packet_id = V7_PACKET_ID_TWO;
|
|
else if (byte[4] & 0x01)
|
|
packet_id = V7_PACKET_ID_MULTI;
|
|
else if ((byte[0] & 0x10) && !(byte[4] & 0x43))
|
|
packet_id = V7_PACKET_ID_NEW;
|
|
else if (byte[1] == 0x00 && byte[4] == 0x00)
|
|
packet_id = V7_PACKET_ID_IDLE;
|
|
else
|
|
packet_id = V7_PACKET_ID_UNKNOWN;
|
|
|
|
return packet_id;
|
|
}
|
|
|
|
static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt,
|
|
unsigned char *pkt,
|
|
unsigned char pkt_id)
|
|
{
|
|
mt[0].x = ((pkt[2] & 0x80) << 4);
|
|
mt[0].x |= ((pkt[2] & 0x3F) << 5);
|
|
mt[0].x |= ((pkt[3] & 0x30) >> 1);
|
|
mt[0].x |= (pkt[3] & 0x07);
|
|
mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07);
|
|
|
|
mt[1].x = ((pkt[3] & 0x80) << 4);
|
|
mt[1].x |= ((pkt[4] & 0x80) << 3);
|
|
mt[1].x |= ((pkt[4] & 0x3F) << 4);
|
|
mt[1].y = ((pkt[5] & 0x80) << 3);
|
|
mt[1].y |= ((pkt[5] & 0x3F) << 4);
|
|
|
|
switch (pkt_id) {
|
|
case V7_PACKET_ID_TWO:
|
|
mt[1].x &= ~0x000F;
|
|
mt[1].y |= 0x000F;
|
|
/* Detect false-positive touches where x & y report max value */
|
|
if (mt[1].y == 0x7ff && mt[1].x == 0xff0) {
|
|
mt[1].x = 0;
|
|
/* y gets set to 0 at the end of this function */
|
|
}
|
|
break;
|
|
|
|
case V7_PACKET_ID_MULTI:
|
|
mt[1].x &= ~0x003F;
|
|
mt[1].y &= ~0x0020;
|
|
mt[1].y |= ((pkt[4] & 0x02) << 4);
|
|
mt[1].y |= 0x001F;
|
|
break;
|
|
|
|
case V7_PACKET_ID_NEW:
|
|
mt[1].x &= ~0x003F;
|
|
mt[1].x |= (pkt[0] & 0x20);
|
|
mt[1].y |= 0x000F;
|
|
break;
|
|
}
|
|
|
|
mt[0].y = 0x7FF - mt[0].y;
|
|
mt[1].y = 0x7FF - mt[1].y;
|
|
}
|
|
|
|
static int alps_get_mt_count(struct input_mt_pos *mt)
|
|
{
|
|
int i, fingers = 0;
|
|
|
|
for (i = 0; i < MAX_TOUCHES; i++) {
|
|
if (mt[i].x != 0 || mt[i].y != 0)
|
|
fingers++;
|
|
}
|
|
|
|
return fingers;
|
|
}
|
|
|
|
static int alps_decode_packet_v7(struct alps_fields *f,
|
|
unsigned char *p,
|
|
struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char pkt_id;
|
|
|
|
pkt_id = alps_get_packet_id_v7(p);
|
|
if (pkt_id == V7_PACKET_ID_IDLE)
|
|
return 0;
|
|
if (pkt_id == V7_PACKET_ID_UNKNOWN)
|
|
return -1;
|
|
/*
|
|
* NEW packets are send to indicate a discontinuity in the finger
|
|
* coordinate reporting. Specifically a finger may have moved from
|
|
* slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for
|
|
* us.
|
|
*
|
|
* NEW packets have 3 problems:
|
|
* 1) They do not contain middle / right button info (on non clickpads)
|
|
* this can be worked around by preserving the old button state
|
|
* 2) They do not contain an accurate fingercount, and they are
|
|
* typically send when the number of fingers changes. We cannot use
|
|
* the old finger count as that may mismatch with the amount of
|
|
* touch coordinates we've available in the NEW packet
|
|
* 3) Their x data for the second touch is inaccurate leading to
|
|
* a possible jump of the x coordinate by 16 units when the first
|
|
* non NEW packet comes in
|
|
* Since problems 2 & 3 cannot be worked around, just ignore them.
|
|
*/
|
|
if (pkt_id == V7_PACKET_ID_NEW)
|
|
return 1;
|
|
|
|
alps_get_finger_coordinate_v7(f->mt, p, pkt_id);
|
|
|
|
if (pkt_id == V7_PACKET_ID_TWO)
|
|
f->fingers = alps_get_mt_count(f->mt);
|
|
else /* pkt_id == V7_PACKET_ID_MULTI */
|
|
f->fingers = 3 + (p[5] & 0x03);
|
|
|
|
f->left = (p[0] & 0x80) >> 7;
|
|
if (priv->flags & ALPS_BUTTONPAD) {
|
|
if (p[0] & 0x20)
|
|
f->fingers++;
|
|
if (p[0] & 0x10)
|
|
f->fingers++;
|
|
} else {
|
|
f->right = (p[0] & 0x20) >> 5;
|
|
f->middle = (p[0] & 0x10) >> 4;
|
|
}
|
|
|
|
/* Sometimes a single touch is reported in mt[1] rather then mt[0] */
|
|
if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) {
|
|
f->mt[0].x = f->mt[1].x;
|
|
f->mt[0].y = f->mt[1].y;
|
|
f->mt[1].x = 0;
|
|
f->mt[1].y = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void alps_process_trackstick_packet_v7(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev2 = priv->dev2;
|
|
int x, y, z;
|
|
|
|
/* It should be a DualPoint when received trackstick packet */
|
|
if (!(priv->flags & ALPS_DUALPOINT)) {
|
|
psmouse_warn(psmouse,
|
|
"Rejected trackstick packet from non DualPoint device");
|
|
return;
|
|
}
|
|
|
|
x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2);
|
|
y = (packet[3] & 0x07) | (packet[4] & 0xb8) |
|
|
((packet[3] & 0x20) << 1);
|
|
z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1);
|
|
|
|
input_report_rel(dev2, REL_X, (char)x);
|
|
input_report_rel(dev2, REL_Y, -((char)y));
|
|
input_report_abs(dev2, ABS_PRESSURE, z);
|
|
|
|
psmouse_report_standard_buttons(dev2, packet[1]);
|
|
|
|
input_sync(dev2);
|
|
}
|
|
|
|
static void alps_process_touchpad_packet_v7(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct input_dev *dev = psmouse->dev;
|
|
struct alps_fields *f = &priv->f;
|
|
|
|
memset(f, 0, sizeof(*f));
|
|
|
|
if (priv->decode_fields(f, psmouse->packet, psmouse))
|
|
return;
|
|
|
|
alps_report_mt_data(psmouse, alps_get_mt_count(f->mt));
|
|
|
|
input_mt_report_finger_count(dev, f->fingers);
|
|
|
|
input_report_key(dev, BTN_LEFT, f->left);
|
|
input_report_key(dev, BTN_RIGHT, f->right);
|
|
input_report_key(dev, BTN_MIDDLE, f->middle);
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static void alps_process_packet_v7(struct psmouse *psmouse)
|
|
{
|
|
unsigned char *packet = psmouse->packet;
|
|
|
|
if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06)
|
|
alps_process_trackstick_packet_v7(psmouse);
|
|
else
|
|
alps_process_touchpad_packet_v7(psmouse);
|
|
}
|
|
|
|
static enum SS4_PACKET_ID alps_get_pkt_id_ss4_v2(unsigned char *byte)
|
|
{
|
|
enum SS4_PACKET_ID pkt_id = SS4_PACKET_ID_IDLE;
|
|
|
|
switch (byte[3] & 0x30) {
|
|
case 0x00:
|
|
if (SS4_IS_IDLE_V2(byte)) {
|
|
pkt_id = SS4_PACKET_ID_IDLE;
|
|
} else {
|
|
pkt_id = SS4_PACKET_ID_ONE;
|
|
}
|
|
break;
|
|
case 0x10:
|
|
/* two-finger finger positions */
|
|
pkt_id = SS4_PACKET_ID_TWO;
|
|
break;
|
|
case 0x20:
|
|
/* stick pointer */
|
|
pkt_id = SS4_PACKET_ID_STICK;
|
|
break;
|
|
case 0x30:
|
|
/* third and fourth finger positions */
|
|
pkt_id = SS4_PACKET_ID_MULTI;
|
|
break;
|
|
}
|
|
|
|
return pkt_id;
|
|
}
|
|
|
|
static int alps_decode_ss4_v2(struct alps_fields *f,
|
|
unsigned char *p, struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
enum SS4_PACKET_ID pkt_id;
|
|
unsigned int no_data_x, no_data_y;
|
|
|
|
pkt_id = alps_get_pkt_id_ss4_v2(p);
|
|
|
|
/* Current packet is 1Finger coordinate packet */
|
|
switch (pkt_id) {
|
|
case SS4_PACKET_ID_ONE:
|
|
f->mt[0].x = SS4_1F_X_V2(p);
|
|
f->mt[0].y = SS4_1F_Y_V2(p);
|
|
f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f;
|
|
/*
|
|
* When a button is held the device will give us events
|
|
* with x, y, and pressure of 0. This causes annoying jumps
|
|
* if a touch is released while the button is held.
|
|
* Handle this by claiming zero contacts.
|
|
*/
|
|
f->fingers = f->pressure > 0 ? 1 : 0;
|
|
f->first_mp = 0;
|
|
f->is_mp = 0;
|
|
break;
|
|
|
|
case SS4_PACKET_ID_TWO:
|
|
if (priv->flags & ALPS_BUTTONPAD) {
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
f->mt[0].x = SS4_PLUS_BTL_MF_X_V2(p, 0);
|
|
f->mt[1].x = SS4_PLUS_BTL_MF_X_V2(p, 1);
|
|
} else {
|
|
f->mt[0].x = SS4_BTL_MF_X_V2(p, 0);
|
|
f->mt[1].x = SS4_BTL_MF_X_V2(p, 1);
|
|
}
|
|
f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0);
|
|
f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1);
|
|
} else {
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
f->mt[0].x = SS4_PLUS_STD_MF_X_V2(p, 0);
|
|
f->mt[1].x = SS4_PLUS_STD_MF_X_V2(p, 1);
|
|
} else {
|
|
f->mt[0].x = SS4_STD_MF_X_V2(p, 0);
|
|
f->mt[1].x = SS4_STD_MF_X_V2(p, 1);
|
|
}
|
|
f->mt[0].y = SS4_STD_MF_Y_V2(p, 0);
|
|
f->mt[1].y = SS4_STD_MF_Y_V2(p, 1);
|
|
}
|
|
f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0;
|
|
|
|
if (SS4_IS_MF_CONTINUE(p)) {
|
|
f->first_mp = 1;
|
|
} else {
|
|
f->fingers = 2;
|
|
f->first_mp = 0;
|
|
}
|
|
f->is_mp = 0;
|
|
|
|
break;
|
|
|
|
case SS4_PACKET_ID_MULTI:
|
|
if (priv->flags & ALPS_BUTTONPAD) {
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
f->mt[2].x = SS4_PLUS_BTL_MF_X_V2(p, 0);
|
|
f->mt[3].x = SS4_PLUS_BTL_MF_X_V2(p, 1);
|
|
no_data_x = SS4_PLUS_MFPACKET_NO_AX_BL;
|
|
} else {
|
|
f->mt[2].x = SS4_BTL_MF_X_V2(p, 0);
|
|
f->mt[3].x = SS4_BTL_MF_X_V2(p, 1);
|
|
no_data_x = SS4_MFPACKET_NO_AX_BL;
|
|
}
|
|
no_data_y = SS4_MFPACKET_NO_AY_BL;
|
|
|
|
f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0);
|
|
f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1);
|
|
} else {
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
f->mt[2].x = SS4_PLUS_STD_MF_X_V2(p, 0);
|
|
f->mt[3].x = SS4_PLUS_STD_MF_X_V2(p, 1);
|
|
no_data_x = SS4_PLUS_MFPACKET_NO_AX;
|
|
} else {
|
|
f->mt[2].x = SS4_STD_MF_X_V2(p, 0);
|
|
f->mt[3].x = SS4_STD_MF_X_V2(p, 1);
|
|
no_data_x = SS4_MFPACKET_NO_AX;
|
|
}
|
|
no_data_y = SS4_MFPACKET_NO_AY;
|
|
|
|
f->mt[2].y = SS4_STD_MF_Y_V2(p, 0);
|
|
f->mt[3].y = SS4_STD_MF_Y_V2(p, 1);
|
|
}
|
|
|
|
f->first_mp = 0;
|
|
f->is_mp = 1;
|
|
|
|
if (SS4_IS_5F_DETECTED(p)) {
|
|
f->fingers = 5;
|
|
} else if (f->mt[3].x == no_data_x &&
|
|
f->mt[3].y == no_data_y) {
|
|
f->mt[3].x = 0;
|
|
f->mt[3].y = 0;
|
|
f->fingers = 3;
|
|
} else {
|
|
f->fingers = 4;
|
|
}
|
|
break;
|
|
|
|
case SS4_PACKET_ID_STICK:
|
|
/*
|
|
* x, y, and pressure are decoded in
|
|
* alps_process_packet_ss4_v2()
|
|
*/
|
|
f->first_mp = 0;
|
|
f->is_mp = 0;
|
|
break;
|
|
|
|
case SS4_PACKET_ID_IDLE:
|
|
default:
|
|
memset(f, 0, sizeof(struct alps_fields));
|
|
break;
|
|
}
|
|
|
|
/* handle buttons */
|
|
if (pkt_id == SS4_PACKET_ID_STICK) {
|
|
f->ts_left = !!(SS4_BTN_V2(p) & 0x01);
|
|
f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
|
|
f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
|
|
} else {
|
|
f->left = !!(SS4_BTN_V2(p) & 0x01);
|
|
if (!(priv->flags & ALPS_BUTTONPAD)) {
|
|
f->right = !!(SS4_BTN_V2(p) & 0x02);
|
|
f->middle = !!(SS4_BTN_V2(p) & 0x04);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void alps_process_packet_ss4_v2(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev = psmouse->dev;
|
|
struct input_dev *dev2 = priv->dev2;
|
|
struct alps_fields *f = &priv->f;
|
|
|
|
memset(f, 0, sizeof(struct alps_fields));
|
|
priv->decode_fields(f, packet, psmouse);
|
|
if (priv->multi_packet) {
|
|
/*
|
|
* Sometimes the first packet will indicate a multi-packet
|
|
* sequence, but sometimes the next multi-packet would not
|
|
* come. Check for this, and when it happens process the
|
|
* position packet as usual.
|
|
*/
|
|
if (f->is_mp) {
|
|
/* Now process the 1st packet */
|
|
priv->decode_fields(f, priv->multi_data, psmouse);
|
|
} else {
|
|
priv->multi_packet = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* "f.is_mp" would always be '0' after merging the 1st and 2nd packet.
|
|
* When it is set, it means 2nd packet comes without 1st packet come.
|
|
*/
|
|
if (f->is_mp)
|
|
return;
|
|
|
|
/* Save the first packet */
|
|
if (!priv->multi_packet && f->first_mp) {
|
|
priv->multi_packet = 1;
|
|
memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
|
|
return;
|
|
}
|
|
|
|
priv->multi_packet = 0;
|
|
|
|
/* Report trackstick */
|
|
if (alps_get_pkt_id_ss4_v2(packet) == SS4_PACKET_ID_STICK) {
|
|
if (!(priv->flags & ALPS_DUALPOINT)) {
|
|
psmouse_warn(psmouse,
|
|
"Rejected trackstick packet from non DualPoint device");
|
|
return;
|
|
}
|
|
|
|
input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet));
|
|
input_report_rel(dev2, REL_Y, SS4_TS_Y_V2(packet));
|
|
input_report_abs(dev2, ABS_PRESSURE, SS4_TS_Z_V2(packet));
|
|
|
|
input_report_key(dev2, BTN_LEFT, f->ts_left);
|
|
input_report_key(dev2, BTN_RIGHT, f->ts_right);
|
|
input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
|
|
|
|
input_sync(dev2);
|
|
return;
|
|
}
|
|
|
|
/* Report touchpad */
|
|
alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4);
|
|
|
|
input_mt_report_finger_count(dev, f->fingers);
|
|
|
|
input_report_key(dev, BTN_LEFT, f->left);
|
|
input_report_key(dev, BTN_RIGHT, f->right);
|
|
input_report_key(dev, BTN_MIDDLE, f->middle);
|
|
|
|
input_report_abs(dev, ABS_PRESSURE, f->pressure);
|
|
input_sync(dev);
|
|
}
|
|
|
|
static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse)
|
|
{
|
|
if (psmouse->pktcnt == 4 && ((psmouse->packet[3] & 0x08) != 0x08))
|
|
return false;
|
|
if (psmouse->pktcnt == 6 && ((psmouse->packet[5] & 0x10) != 0x0))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static DEFINE_MUTEX(alps_mutex);
|
|
|
|
static void alps_register_bare_ps2_mouse(struct work_struct *work)
|
|
{
|
|
struct alps_data *priv =
|
|
container_of(work, struct alps_data, dev3_register_work.work);
|
|
struct psmouse *psmouse = priv->psmouse;
|
|
struct input_dev *dev3;
|
|
int error = 0;
|
|
|
|
mutex_lock(&alps_mutex);
|
|
|
|
if (priv->dev3)
|
|
goto out;
|
|
|
|
dev3 = input_allocate_device();
|
|
if (!dev3) {
|
|
psmouse_err(psmouse, "failed to allocate secondary device\n");
|
|
error = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s",
|
|
psmouse->ps2dev.serio->phys,
|
|
(priv->dev2 ? "input2" : "input1"));
|
|
dev3->phys = priv->phys3;
|
|
|
|
/*
|
|
* format of input device name is: "protocol vendor name"
|
|
* see function psmouse_switch_protocol() in psmouse-base.c
|
|
*/
|
|
dev3->name = "PS/2 ALPS Mouse";
|
|
|
|
dev3->id.bustype = BUS_I8042;
|
|
dev3->id.vendor = 0x0002;
|
|
dev3->id.product = PSMOUSE_PS2;
|
|
dev3->id.version = 0x0000;
|
|
dev3->dev.parent = &psmouse->ps2dev.serio->dev;
|
|
|
|
input_set_capability(dev3, EV_REL, REL_X);
|
|
input_set_capability(dev3, EV_REL, REL_Y);
|
|
input_set_capability(dev3, EV_KEY, BTN_LEFT);
|
|
input_set_capability(dev3, EV_KEY, BTN_RIGHT);
|
|
input_set_capability(dev3, EV_KEY, BTN_MIDDLE);
|
|
|
|
__set_bit(INPUT_PROP_POINTER, dev3->propbit);
|
|
|
|
error = input_register_device(dev3);
|
|
if (error) {
|
|
psmouse_err(psmouse,
|
|
"failed to register secondary device: %d\n",
|
|
error);
|
|
input_free_device(dev3);
|
|
goto out;
|
|
}
|
|
|
|
priv->dev3 = dev3;
|
|
|
|
out:
|
|
/*
|
|
* Save the error code so that we can detect that we
|
|
* already tried to create the device.
|
|
*/
|
|
if (error)
|
|
priv->dev3 = ERR_PTR(error);
|
|
|
|
mutex_unlock(&alps_mutex);
|
|
}
|
|
|
|
static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
|
|
unsigned char packet[],
|
|
bool report_buttons)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct input_dev *dev, *dev2 = NULL;
|
|
|
|
/* Figure out which device to use to report the bare packet */
|
|
if (priv->proto_version == ALPS_PROTO_V2 &&
|
|
(priv->flags & ALPS_DUALPOINT)) {
|
|
/* On V2 devices the DualPoint Stick reports bare packets */
|
|
dev = priv->dev2;
|
|
dev2 = psmouse->dev;
|
|
} else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) {
|
|
/* Register dev3 mouse if we received PS/2 packet first time */
|
|
if (!IS_ERR(priv->dev3))
|
|
psmouse_queue_work(psmouse, &priv->dev3_register_work,
|
|
0);
|
|
return;
|
|
} else {
|
|
dev = priv->dev3;
|
|
}
|
|
|
|
if (report_buttons)
|
|
alps_report_buttons(dev, dev2,
|
|
packet[0] & 1, packet[0] & 2, packet[0] & 4);
|
|
|
|
psmouse_report_standard_motion(dev, packet);
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
if (psmouse->pktcnt < 6)
|
|
return PSMOUSE_GOOD_DATA;
|
|
|
|
if (psmouse->pktcnt == 6) {
|
|
/*
|
|
* Start a timer to flush the packet if it ends up last
|
|
* 6-byte packet in the stream. Timer needs to fire
|
|
* psmouse core times out itself. 20 ms should be enough
|
|
* to decide if we are getting more data or not.
|
|
*/
|
|
mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20));
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
del_timer(&priv->timer);
|
|
|
|
if (psmouse->packet[6] & 0x80) {
|
|
|
|
/*
|
|
* Highest bit is set - that means we either had
|
|
* complete ALPS packet and this is start of the
|
|
* next packet or we got garbage.
|
|
*/
|
|
|
|
if (((psmouse->packet[3] |
|
|
psmouse->packet[4] |
|
|
psmouse->packet[5]) & 0x80) ||
|
|
(!alps_is_valid_first_byte(priv, psmouse->packet[6]))) {
|
|
psmouse_dbg(psmouse,
|
|
"refusing packet %4ph (suspected interleaved ps/2)\n",
|
|
psmouse->packet + 3);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
priv->process_packet(psmouse);
|
|
|
|
/* Continue with the next packet */
|
|
psmouse->packet[0] = psmouse->packet[6];
|
|
psmouse->pktcnt = 1;
|
|
|
|
} else {
|
|
|
|
/*
|
|
* High bit is 0 - that means that we indeed got a PS/2
|
|
* packet in the middle of ALPS packet.
|
|
*
|
|
* There is also possibility that we got 6-byte ALPS
|
|
* packet followed by 3-byte packet from trackpoint. We
|
|
* can not distinguish between these 2 scenarios but
|
|
* because the latter is unlikely to happen in course of
|
|
* normal operation (user would need to press all
|
|
* buttons on the pad and start moving trackpoint
|
|
* without touching the pad surface) we assume former.
|
|
* Even if we are wrong the wost thing that would happen
|
|
* the cursor would jump but we should not get protocol
|
|
* de-synchronization.
|
|
*/
|
|
|
|
alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
|
|
false);
|
|
|
|
/*
|
|
* Continue with the standard ALPS protocol handling,
|
|
* but make sure we won't process it as an interleaved
|
|
* packet again, which may happen if all buttons are
|
|
* pressed. To avoid this let's reset the 4th bit which
|
|
* is normally 1.
|
|
*/
|
|
psmouse->packet[3] = psmouse->packet[6] & 0xf7;
|
|
psmouse->pktcnt = 4;
|
|
}
|
|
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
static void alps_flush_packet(struct timer_list *t)
|
|
{
|
|
struct alps_data *priv = from_timer(priv, t, timer);
|
|
struct psmouse *psmouse = priv->psmouse;
|
|
|
|
serio_pause_rx(psmouse->ps2dev.serio);
|
|
|
|
if (psmouse->pktcnt == psmouse->pktsize) {
|
|
|
|
/*
|
|
* We did not any more data in reasonable amount of time.
|
|
* Validate the last 3 bytes and process as a standard
|
|
* ALPS packet.
|
|
*/
|
|
if ((psmouse->packet[3] |
|
|
psmouse->packet[4] |
|
|
psmouse->packet[5]) & 0x80) {
|
|
psmouse_dbg(psmouse,
|
|
"refusing packet %3ph (suspected interleaved ps/2)\n",
|
|
psmouse->packet + 3);
|
|
} else {
|
|
priv->process_packet(psmouse);
|
|
}
|
|
psmouse->pktcnt = 0;
|
|
}
|
|
|
|
serio_continue_rx(psmouse->ps2dev.serio);
|
|
}
|
|
|
|
static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
/*
|
|
* Check if we are dealing with a bare PS/2 packet, presumably from
|
|
* a device connected to the external PS/2 port. Because bare PS/2
|
|
* protocol does not have enough constant bits to self-synchronize
|
|
* properly we only do this if the device is fully synchronized.
|
|
* Can not distinguish V8's first byte from PS/2 packet's
|
|
*/
|
|
if (priv->proto_version != ALPS_PROTO_V8 &&
|
|
!psmouse->out_of_sync_cnt &&
|
|
(psmouse->packet[0] & 0xc8) == 0x08) {
|
|
|
|
if (psmouse->pktcnt == 3) {
|
|
alps_report_bare_ps2_packet(psmouse, psmouse->packet,
|
|
true);
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
/* Check for PS/2 packet stuffed in the middle of ALPS packet. */
|
|
|
|
if ((priv->flags & ALPS_PS2_INTERLEAVED) &&
|
|
psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
|
|
return alps_handle_interleaved_ps2(psmouse);
|
|
}
|
|
|
|
if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) {
|
|
psmouse_dbg(psmouse,
|
|
"refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
|
|
psmouse->packet[0], priv->mask0, priv->byte0);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
/* Bytes 2 - pktsize should have 0 in the highest bit */
|
|
if (priv->proto_version < ALPS_PROTO_V5 &&
|
|
psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize &&
|
|
(psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
|
|
psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
|
|
psmouse->pktcnt - 1,
|
|
psmouse->packet[psmouse->pktcnt - 1]);
|
|
|
|
if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE &&
|
|
psmouse->pktcnt == psmouse->pktsize) {
|
|
/*
|
|
* Some Dell boxes, such as Latitude E6440 or E7440
|
|
* with closed lid, quite often smash last byte of
|
|
* otherwise valid packet with 0xff. Given that the
|
|
* next packet is very likely to be valid let's
|
|
* report PSMOUSE_FULL_PACKET but not process data,
|
|
* rather than reporting PSMOUSE_BAD_DATA and
|
|
* filling the logs.
|
|
*/
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
if ((priv->proto_version == ALPS_PROTO_V7 &&
|
|
!alps_is_valid_package_v7(psmouse)) ||
|
|
(priv->proto_version == ALPS_PROTO_V8 &&
|
|
!alps_is_valid_package_ss4_v2(psmouse))) {
|
|
psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
|
|
psmouse->pktcnt - 1,
|
|
psmouse->packet[psmouse->pktcnt - 1]);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
if (psmouse->pktcnt == psmouse->pktsize) {
|
|
priv->process_packet(psmouse);
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
struct alps_data *priv = psmouse->private;
|
|
int command;
|
|
unsigned char *param;
|
|
unsigned char dummy[4];
|
|
|
|
BUG_ON(nibble > 0xf);
|
|
|
|
command = priv->nibble_commands[nibble].command;
|
|
param = (command & 0x0f00) ?
|
|
dummy : (unsigned char *)&priv->nibble_commands[nibble].data;
|
|
|
|
if (ps2_command(ps2dev, param, command))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
struct alps_data *priv = psmouse->private;
|
|
int i, nibble;
|
|
|
|
if (ps2_command(ps2dev, NULL, priv->addr_command))
|
|
return -1;
|
|
|
|
for (i = 12; i >= 0; i -= 4) {
|
|
nibble = (addr >> i) & 0xf;
|
|
if (alps_command_mode_send_nibble(psmouse, nibble))
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[4];
|
|
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
|
|
/*
|
|
* The address being read is returned in the first two bytes
|
|
* of the result. Check that this address matches the expected
|
|
* address.
|
|
*/
|
|
if (addr != ((param[0] << 8) | param[1]))
|
|
return -1;
|
|
|
|
return param[2];
|
|
}
|
|
|
|
static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
|
|
{
|
|
if (alps_command_mode_set_addr(psmouse, addr))
|
|
return -1;
|
|
return __alps_command_mode_read_reg(psmouse, addr);
|
|
}
|
|
|
|
static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value)
|
|
{
|
|
if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf))
|
|
return -1;
|
|
if (alps_command_mode_send_nibble(psmouse, value & 0xf))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr,
|
|
u8 value)
|
|
{
|
|
if (alps_command_mode_set_addr(psmouse, addr))
|
|
return -1;
|
|
return __alps_command_mode_write_reg(psmouse, value);
|
|
}
|
|
|
|
static int alps_rpt_cmd(struct psmouse *psmouse, int init_command,
|
|
int repeated_command, unsigned char *param)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
param[0] = 0;
|
|
if (init_command && ps2_command(ps2dev, param, init_command))
|
|
return -EIO;
|
|
|
|
if (ps2_command(ps2dev, NULL, repeated_command) ||
|
|
ps2_command(ps2dev, NULL, repeated_command) ||
|
|
ps2_command(ps2dev, NULL, repeated_command))
|
|
return -EIO;
|
|
|
|
param[0] = param[1] = param[2] = 0xff;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
|
return -EIO;
|
|
|
|
psmouse_dbg(psmouse, "%2.2X report: %3ph\n",
|
|
repeated_command, param);
|
|
return 0;
|
|
}
|
|
|
|
static bool alps_check_valid_firmware_id(unsigned char id[])
|
|
{
|
|
if (id[0] == 0x73)
|
|
return true;
|
|
|
|
if (id[0] == 0x88 &&
|
|
(id[1] == 0x07 ||
|
|
id[1] == 0x08 ||
|
|
(id[1] & 0xf0) == 0xb0 ||
|
|
(id[1] & 0xf0) == 0xc0)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static int alps_enter_command_mode(struct psmouse *psmouse)
|
|
{
|
|
unsigned char param[4];
|
|
|
|
if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) {
|
|
psmouse_err(psmouse, "failed to enter command mode\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!alps_check_valid_firmware_id(param)) {
|
|
psmouse_dbg(psmouse,
|
|
"unknown response while entering command mode\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int alps_exit_command_mode(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* For DualPoint devices select the device that should respond to
|
|
* subsequent commands. It looks like glidepad is behind stickpointer,
|
|
* I'd thought it would be other way around...
|
|
*/
|
|
static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
|
|
|
|
if (ps2_command(ps2dev, NULL, cmd) ||
|
|
ps2_command(ps2dev, NULL, cmd) ||
|
|
ps2_command(ps2dev, NULL, cmd) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
|
|
return -1;
|
|
|
|
/* we may get 3 more bytes, just ignore them */
|
|
ps2_drain(ps2dev, 3, 100);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_absolute_mode_v1_v2(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
/* Try ALPS magic knock - 4 disable before enable */
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
|
|
return -1;
|
|
|
|
/*
|
|
* Switch mouse to poll (remote) mode so motion data will not
|
|
* get in our way
|
|
*/
|
|
return ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
|
|
}
|
|
|
|
static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word)
|
|
{
|
|
int i, nibble;
|
|
|
|
/*
|
|
* b0-b11 are valid bits, send sequence is inverse.
|
|
* e.g. when word = 0x0123, nibble send sequence is 3, 2, 1
|
|
*/
|
|
for (i = 0; i <= 8; i += 4) {
|
|
nibble = (word >> i) & 0xf;
|
|
if (alps_command_mode_send_nibble(psmouse, nibble))
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_monitor_mode_write_reg(struct psmouse *psmouse,
|
|
u16 addr, u16 value)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
/* 0x0A0 is the command to write the word */
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) ||
|
|
alps_monitor_mode_send_word(psmouse, 0x0A0) ||
|
|
alps_monitor_mode_send_word(psmouse, addr) ||
|
|
alps_monitor_mode_send_word(psmouse, value) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_monitor_mode(struct psmouse *psmouse, bool enable)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
if (enable) {
|
|
/* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
} else {
|
|
/* EC to exit monitor mode */
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP))
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_absolute_mode_v6(struct psmouse *psmouse)
|
|
{
|
|
u16 reg_val = 0x181;
|
|
int ret;
|
|
|
|
/* enter monitor mode, to write the register */
|
|
if (alps_monitor_mode(psmouse, true))
|
|
return -1;
|
|
|
|
ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val);
|
|
|
|
if (alps_monitor_mode(psmouse, false))
|
|
ret = -1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int alps_get_status(struct psmouse *psmouse, char *param)
|
|
{
|
|
/* Get status: 0xF5 0xF5 0xF5 0xE9 */
|
|
if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Turn touchpad tapping on or off. The sequences are:
|
|
* 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
|
|
* 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
|
|
* My guess that 0xE9 (GetInfo) is here as a sync point.
|
|
* For models that also have stickpointer (DualPoints) its tapping
|
|
* is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
|
|
* we don't fiddle with it.
|
|
*/
|
|
static int alps_tap_mode(struct psmouse *psmouse, int enable)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
|
|
unsigned char tap_arg = enable ? 0x0A : 0x00;
|
|
unsigned char param[4];
|
|
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
|
|
ps2_command(ps2dev, &tap_arg, cmd))
|
|
return -1;
|
|
|
|
if (alps_get_status(psmouse, param))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* alps_poll() - poll the touchpad for current motion packet.
|
|
* Used in resync.
|
|
*/
|
|
static int alps_poll(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char buf[sizeof(psmouse->packet)];
|
|
bool poll_failed;
|
|
|
|
if (priv->flags & ALPS_PASS)
|
|
alps_passthrough_mode_v2(psmouse, true);
|
|
|
|
poll_failed = ps2_command(&psmouse->ps2dev, buf,
|
|
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
|
|
|
|
if (priv->flags & ALPS_PASS)
|
|
alps_passthrough_mode_v2(psmouse, false);
|
|
|
|
if (poll_failed || (buf[0] & priv->mask0) != priv->byte0)
|
|
return -1;
|
|
|
|
if ((psmouse->badbyte & 0xc8) == 0x08) {
|
|
/*
|
|
* Poll the track stick ...
|
|
*/
|
|
if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
|
|
return -1;
|
|
}
|
|
|
|
memcpy(psmouse->packet, buf, sizeof(buf));
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_v1_v2(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
if ((priv->flags & ALPS_PASS) &&
|
|
alps_passthrough_mode_v2(psmouse, true)) {
|
|
return -1;
|
|
}
|
|
|
|
if (alps_tap_mode(psmouse, true)) {
|
|
psmouse_warn(psmouse, "Failed to enable hardware tapping\n");
|
|
return -1;
|
|
}
|
|
|
|
if (alps_absolute_mode_v1_v2(psmouse)) {
|
|
psmouse_err(psmouse, "Failed to enable absolute mode\n");
|
|
return -1;
|
|
}
|
|
|
|
if ((priv->flags & ALPS_PASS) &&
|
|
alps_passthrough_mode_v2(psmouse, false)) {
|
|
return -1;
|
|
}
|
|
|
|
/* ALPS needs stream mode, otherwise it won't report any data */
|
|
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
|
|
psmouse_err(psmouse, "Failed to enable stream mode\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Must be in passthrough mode when calling this function */
|
|
static int alps_trackstick_enter_extended_mode_v3_v6(struct psmouse *psmouse)
|
|
{
|
|
unsigned char param[2] = {0xC8, 0x14};
|
|
|
|
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_v6(struct psmouse *psmouse)
|
|
{
|
|
int ret;
|
|
|
|
/* Enter passthrough mode to let trackpoint enter 6byte raw mode */
|
|
if (alps_passthrough_mode_v2(psmouse, true))
|
|
return -1;
|
|
|
|
ret = alps_trackstick_enter_extended_mode_v3_v6(psmouse);
|
|
|
|
if (alps_passthrough_mode_v2(psmouse, false))
|
|
return -1;
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (alps_absolute_mode_v6(psmouse)) {
|
|
psmouse_err(psmouse, "Failed to enable absolute mode\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Enable or disable passthrough mode to the trackstick.
|
|
*/
|
|
static int alps_passthrough_mode_v3(struct psmouse *psmouse,
|
|
int reg_base, bool enable)
|
|
{
|
|
int reg_val, ret = -1;
|
|
|
|
if (alps_enter_command_mode(psmouse))
|
|
return -1;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
|
|
if (enable)
|
|
reg_val |= 0x01;
|
|
else
|
|
reg_val &= ~0x01;
|
|
|
|
ret = __alps_command_mode_write_reg(psmouse, reg_val);
|
|
|
|
error:
|
|
if (alps_exit_command_mode(psmouse))
|
|
ret = -1;
|
|
return ret;
|
|
}
|
|
|
|
/* Must be in command mode when calling this function */
|
|
static int alps_absolute_mode_v3(struct psmouse *psmouse)
|
|
{
|
|
int reg_val;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
|
|
if (reg_val == -1)
|
|
return -1;
|
|
|
|
reg_val |= 0x06;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base)
|
|
{
|
|
int ret = -EIO, reg_val;
|
|
|
|
if (alps_enter_command_mode(psmouse))
|
|
goto error;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
|
|
/* bit 7: trackstick is present */
|
|
ret = reg_val & 0x80 ? 0 : -ENODEV;
|
|
|
|
error:
|
|
alps_exit_command_mode(psmouse);
|
|
return ret;
|
|
}
|
|
|
|
static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base)
|
|
{
|
|
int ret = 0;
|
|
int reg_val;
|
|
unsigned char param[4];
|
|
|
|
/*
|
|
* We need to configure trackstick to report data for touchpad in
|
|
* extended format. And also we need to tell touchpad to expect data
|
|
* from trackstick in extended format. Without this configuration
|
|
* trackstick packets sent from touchpad are in basic format which is
|
|
* different from what we expect.
|
|
*/
|
|
|
|
if (alps_passthrough_mode_v3(psmouse, reg_base, true))
|
|
return -EIO;
|
|
|
|
/*
|
|
* E7 report for the trackstick
|
|
*
|
|
* There have been reports of failures to seem to trace back
|
|
* to the above trackstick check failing. When these occur
|
|
* this E7 report fails, so when that happens we continue
|
|
* with the assumption that there isn't a trackstick after
|
|
* all.
|
|
*/
|
|
if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) {
|
|
psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n");
|
|
ret = -ENODEV;
|
|
} else {
|
|
psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param);
|
|
if (alps_trackstick_enter_extended_mode_v3_v6(psmouse)) {
|
|
psmouse_err(psmouse, "Failed to enter into trackstick extended mode\n");
|
|
ret = -EIO;
|
|
}
|
|
}
|
|
|
|
if (alps_passthrough_mode_v3(psmouse, reg_base, false))
|
|
return -EIO;
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (alps_enter_command_mode(psmouse))
|
|
return -EIO;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08);
|
|
if (reg_val == -1) {
|
|
ret = -EIO;
|
|
} else {
|
|
/*
|
|
* Tell touchpad that trackstick is now in extended mode.
|
|
* If bit 1 isn't set the packet format is different.
|
|
*/
|
|
reg_val |= BIT(1);
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
|
ret = -EIO;
|
|
}
|
|
|
|
if (alps_exit_command_mode(psmouse))
|
|
return -EIO;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int alps_hw_init_v3(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int reg_val;
|
|
unsigned char param[4];
|
|
|
|
if ((priv->flags & ALPS_DUALPOINT) &&
|
|
alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO)
|
|
goto error;
|
|
|
|
if (alps_enter_command_mode(psmouse) ||
|
|
alps_absolute_mode_v3(psmouse)) {
|
|
psmouse_err(psmouse, "Failed to enter absolute mode\n");
|
|
goto error;
|
|
}
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0006);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
|
|
goto error;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0007);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
|
|
goto error;
|
|
|
|
if (alps_command_mode_read_reg(psmouse, 0x0144) == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, 0x04))
|
|
goto error;
|
|
|
|
if (alps_command_mode_read_reg(psmouse, 0x0159) == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_read_reg(psmouse, 0x0163) == -1)
|
|
goto error;
|
|
if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_read_reg(psmouse, 0x0162) == -1)
|
|
goto error;
|
|
if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04))
|
|
goto error;
|
|
|
|
alps_exit_command_mode(psmouse);
|
|
|
|
/* Set rate and enable data reporting */
|
|
param[0] = 0x64;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
|
|
psmouse_err(psmouse, "Failed to enable data reporting\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
/*
|
|
* Leaving the touchpad in command mode will essentially render
|
|
* it unusable until the machine reboots, so exit it here just
|
|
* to be safe
|
|
*/
|
|
alps_exit_command_mode(psmouse);
|
|
return -1;
|
|
}
|
|
|
|
static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch)
|
|
{
|
|
int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys;
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
reg = alps_command_mode_read_reg(psmouse, reg_pitch);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */
|
|
x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */
|
|
|
|
y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */
|
|
y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */
|
|
|
|
reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */
|
|
x_electrode = 17 + x_electrode;
|
|
|
|
y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */
|
|
y_electrode = 13 + y_electrode;
|
|
|
|
x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */
|
|
y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */
|
|
|
|
priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */
|
|
priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */
|
|
|
|
psmouse_dbg(psmouse,
|
|
"pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n",
|
|
x_pitch, y_pitch, x_electrode, y_electrode,
|
|
x_phys / 10, y_phys / 10, priv->x_res, priv->y_res);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_rushmore_v3(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int reg_val, ret = -1;
|
|
|
|
if (priv->flags & ALPS_DUALPOINT) {
|
|
reg_val = alps_setup_trackstick_v3(psmouse,
|
|
ALPS_REG_BASE_RUSHMORE);
|
|
if (reg_val == -EIO)
|
|
goto error;
|
|
}
|
|
|
|
if (alps_enter_command_mode(psmouse) ||
|
|
alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 ||
|
|
alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00))
|
|
goto error;
|
|
|
|
if (alps_get_v3_v7_resolution(psmouse, 0xc2da))
|
|
goto error;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64))
|
|
goto error;
|
|
|
|
/* enter absolute mode */
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02))
|
|
goto error;
|
|
|
|
alps_exit_command_mode(psmouse);
|
|
return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
|
|
|
|
error:
|
|
alps_exit_command_mode(psmouse);
|
|
return ret;
|
|
}
|
|
|
|
/* Must be in command mode when calling this function */
|
|
static int alps_absolute_mode_v4(struct psmouse *psmouse)
|
|
{
|
|
int reg_val;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
|
|
if (reg_val == -1)
|
|
return -1;
|
|
|
|
reg_val |= 0x02;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_v4(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[4];
|
|
|
|
if (alps_enter_command_mode(psmouse))
|
|
goto error;
|
|
|
|
if (alps_absolute_mode_v4(psmouse)) {
|
|
psmouse_err(psmouse, "Failed to enter absolute mode\n");
|
|
goto error;
|
|
}
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03))
|
|
goto error;
|
|
|
|
alps_exit_command_mode(psmouse);
|
|
|
|
/*
|
|
* This sequence changes the output from a 9-byte to an
|
|
* 8-byte format. All the same data seems to be present,
|
|
* just in a more compact format.
|
|
*/
|
|
param[0] = 0xc8;
|
|
param[1] = 0x64;
|
|
param[2] = 0x50;
|
|
if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
|
|
return -1;
|
|
|
|
/* Set rate and enable data reporting */
|
|
param[0] = 0x64;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
|
|
psmouse_err(psmouse, "Failed to enable data reporting\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
/*
|
|
* Leaving the touchpad in command mode will essentially render
|
|
* it unusable until the machine reboots, so exit it here just
|
|
* to be safe
|
|
*/
|
|
alps_exit_command_mode(psmouse);
|
|
return -1;
|
|
}
|
|
|
|
static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse,
|
|
unsigned char index, unsigned char otp[])
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
switch (index) {
|
|
case 0:
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
|
|
ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
|
|
ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_update_device_area_ss4_v2(unsigned char otp[][4],
|
|
struct alps_data *priv)
|
|
{
|
|
int num_x_electrode;
|
|
int num_y_electrode;
|
|
int x_pitch, y_pitch, x_phys, y_phys;
|
|
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
num_x_electrode =
|
|
SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F);
|
|
num_y_electrode =
|
|
SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F);
|
|
|
|
priv->x_max =
|
|
(num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
|
|
priv->y_max =
|
|
(num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
|
|
|
|
x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM;
|
|
y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM;
|
|
|
|
} else {
|
|
num_x_electrode =
|
|
SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
|
|
num_y_electrode =
|
|
SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
|
|
|
|
priv->x_max =
|
|
(num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
|
|
priv->y_max =
|
|
(num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
|
|
|
|
x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
|
|
y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
|
|
}
|
|
|
|
x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
|
|
y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
|
|
|
|
priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */
|
|
priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
|
|
struct alps_data *priv)
|
|
{
|
|
unsigned char is_btnless;
|
|
|
|
if (IS_SS4PLUS_DEV(priv->dev_id))
|
|
is_btnless = (otp[1][0] >> 1) & 0x01;
|
|
else
|
|
is_btnless = (otp[1][1] >> 3) & 0x01;
|
|
|
|
if (is_btnless)
|
|
priv->flags |= ALPS_BUTTONPAD;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
|
|
struct alps_data *priv,
|
|
struct psmouse *psmouse)
|
|
{
|
|
bool is_dual = false;
|
|
int reg_val = 0;
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
if (IS_SS4PLUS_DEV(priv->dev_id)) {
|
|
is_dual = (otp[0][0] >> 4) & 0x01;
|
|
|
|
if (!is_dual) {
|
|
/* For support TrackStick of Thinkpad L/E series */
|
|
if (alps_exit_command_mode(psmouse) == 0 &&
|
|
alps_enter_command_mode(psmouse) == 0) {
|
|
reg_val = alps_command_mode_read_reg(psmouse,
|
|
0xD7);
|
|
}
|
|
alps_exit_command_mode(psmouse);
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
|
|
|
|
if (reg_val == 0x0C || reg_val == 0x1D)
|
|
is_dual = true;
|
|
}
|
|
}
|
|
|
|
if (is_dual)
|
|
priv->flags |= ALPS_DUALPOINT |
|
|
ALPS_DUALPOINT_WITH_PRESSURE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
|
|
struct alps_data *priv)
|
|
{
|
|
unsigned char otp[2][4];
|
|
|
|
memset(otp, 0, sizeof(otp));
|
|
|
|
if (alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]) ||
|
|
alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0]))
|
|
return -1;
|
|
|
|
alps_update_device_area_ss4_v2(otp, priv);
|
|
|
|
alps_update_btn_info_ss4_v2(otp, priv);
|
|
|
|
alps_update_dual_info_ss4_v2(otp, priv, psmouse);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_dolphin_get_device_area(struct psmouse *psmouse,
|
|
struct alps_data *priv)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[4] = {0};
|
|
int num_x_electrode, num_y_electrode;
|
|
|
|
if (alps_enter_command_mode(psmouse))
|
|
return -1;
|
|
|
|
param[0] = 0x0a;
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
|
|
ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE))
|
|
return -1;
|
|
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
|
|
/*
|
|
* Dolphin's sensor line number is not fixed. It can be calculated
|
|
* by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET.
|
|
* Further more, we can get device's x_max and y_max by multiplying
|
|
* sensor line number with DOLPHIN_COUNT_PER_ELECTRODE.
|
|
*
|
|
* e.g. When we get register's sensor_x = 11 & sensor_y = 8,
|
|
* real sensor line number X = 11 + 8 = 19, and
|
|
* real sensor line number Y = 8 + 1 = 9.
|
|
* So, x_max = (19 - 1) * 64 = 1152, and
|
|
* y_max = (9 - 1) * 64 = 512.
|
|
*/
|
|
num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F);
|
|
num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F);
|
|
priv->x_bits = num_x_electrode;
|
|
priv->y_bits = num_y_electrode;
|
|
priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE;
|
|
priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE;
|
|
|
|
if (alps_exit_command_mode(psmouse))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_dolphin_v1(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[2];
|
|
|
|
/* This is dolphin "v1" as empirically defined by florin9doi */
|
|
param[0] = 0x64;
|
|
param[1] = 0x28;
|
|
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
|
|
ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_hw_init_v7(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int reg_val, ret = -1;
|
|
|
|
if (alps_enter_command_mode(psmouse) ||
|
|
alps_command_mode_read_reg(psmouse, 0xc2d9) == -1)
|
|
goto error;
|
|
|
|
if (alps_get_v3_v7_resolution(psmouse, 0xc397))
|
|
goto error;
|
|
|
|
if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64))
|
|
goto error;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02))
|
|
goto error;
|
|
|
|
alps_exit_command_mode(psmouse);
|
|
return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
|
|
|
|
error:
|
|
alps_exit_command_mode(psmouse);
|
|
return ret;
|
|
}
|
|
|
|
static int alps_hw_init_ss4_v2(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
char param[2] = {0x64, 0x28};
|
|
int ret = -1;
|
|
|
|
/* enter absolute mode */
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
|
|
ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
|
ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) {
|
|
goto error;
|
|
}
|
|
|
|
/* T.B.D. Decread noise packet number, delete in the future */
|
|
if (alps_exit_command_mode(psmouse) ||
|
|
alps_enter_command_mode(psmouse) ||
|
|
alps_command_mode_write_reg(psmouse, 0x001D, 0x20)) {
|
|
goto error;
|
|
}
|
|
alps_exit_command_mode(psmouse);
|
|
|
|
return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
|
|
|
|
error:
|
|
alps_exit_command_mode(psmouse);
|
|
return ret;
|
|
}
|
|
|
|
static int alps_set_protocol(struct psmouse *psmouse,
|
|
struct alps_data *priv,
|
|
const struct alps_protocol_info *protocol)
|
|
{
|
|
psmouse->private = priv;
|
|
|
|
timer_setup(&priv->timer, alps_flush_packet, 0);
|
|
|
|
priv->proto_version = protocol->version;
|
|
priv->byte0 = protocol->byte0;
|
|
priv->mask0 = protocol->mask0;
|
|
priv->flags = protocol->flags;
|
|
|
|
priv->x_max = 2000;
|
|
priv->y_max = 1400;
|
|
priv->x_bits = 15;
|
|
priv->y_bits = 11;
|
|
|
|
switch (priv->proto_version) {
|
|
case ALPS_PROTO_V1:
|
|
case ALPS_PROTO_V2:
|
|
priv->hw_init = alps_hw_init_v1_v2;
|
|
priv->process_packet = alps_process_packet_v1_v2;
|
|
priv->set_abs_params = alps_set_abs_params_st;
|
|
priv->x_max = 1023;
|
|
priv->y_max = 767;
|
|
if (dmi_check_system(alps_dmi_has_separate_stick_buttons))
|
|
priv->flags |= ALPS_STICK_BITS;
|
|
break;
|
|
|
|
case ALPS_PROTO_V3:
|
|
priv->hw_init = alps_hw_init_v3;
|
|
priv->process_packet = alps_process_packet_v3;
|
|
priv->set_abs_params = alps_set_abs_params_semi_mt;
|
|
priv->decode_fields = alps_decode_pinnacle;
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
|
|
if (alps_probe_trackstick_v3_v7(psmouse,
|
|
ALPS_REG_BASE_PINNACLE) < 0)
|
|
priv->flags &= ~ALPS_DUALPOINT;
|
|
|
|
break;
|
|
|
|
case ALPS_PROTO_V3_RUSHMORE:
|
|
priv->hw_init = alps_hw_init_rushmore_v3;
|
|
priv->process_packet = alps_process_packet_v3;
|
|
priv->set_abs_params = alps_set_abs_params_semi_mt;
|
|
priv->decode_fields = alps_decode_rushmore;
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
priv->x_bits = 16;
|
|
priv->y_bits = 12;
|
|
|
|
if (alps_probe_trackstick_v3_v7(psmouse,
|
|
ALPS_REG_BASE_RUSHMORE) < 0)
|
|
priv->flags &= ~ALPS_DUALPOINT;
|
|
|
|
break;
|
|
|
|
case ALPS_PROTO_V4:
|
|
priv->hw_init = alps_hw_init_v4;
|
|
priv->process_packet = alps_process_packet_v4;
|
|
priv->set_abs_params = alps_set_abs_params_semi_mt;
|
|
priv->nibble_commands = alps_v4_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_DISABLE;
|
|
break;
|
|
|
|
case ALPS_PROTO_V5:
|
|
priv->hw_init = alps_hw_init_dolphin_v1;
|
|
priv->process_packet = alps_process_touchpad_packet_v3_v5;
|
|
priv->decode_fields = alps_decode_dolphin;
|
|
priv->set_abs_params = alps_set_abs_params_semi_mt;
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
priv->x_bits = 23;
|
|
priv->y_bits = 12;
|
|
|
|
if (alps_dolphin_get_device_area(psmouse, priv))
|
|
return -EIO;
|
|
|
|
break;
|
|
|
|
case ALPS_PROTO_V6:
|
|
priv->hw_init = alps_hw_init_v6;
|
|
priv->process_packet = alps_process_packet_v6;
|
|
priv->set_abs_params = alps_set_abs_params_st;
|
|
priv->nibble_commands = alps_v6_nibble_commands;
|
|
priv->x_max = 2047;
|
|
priv->y_max = 1535;
|
|
break;
|
|
|
|
case ALPS_PROTO_V7:
|
|
priv->hw_init = alps_hw_init_v7;
|
|
priv->process_packet = alps_process_packet_v7;
|
|
priv->decode_fields = alps_decode_packet_v7;
|
|
priv->set_abs_params = alps_set_abs_params_v7;
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
priv->x_max = 0xfff;
|
|
priv->y_max = 0x7ff;
|
|
|
|
if (priv->fw_ver[1] != 0xba)
|
|
priv->flags |= ALPS_BUTTONPAD;
|
|
|
|
if (alps_probe_trackstick_v3_v7(psmouse, ALPS_REG_BASE_V7) < 0)
|
|
priv->flags &= ~ALPS_DUALPOINT;
|
|
|
|
break;
|
|
|
|
case ALPS_PROTO_V8:
|
|
priv->hw_init = alps_hw_init_ss4_v2;
|
|
priv->process_packet = alps_process_packet_ss4_v2;
|
|
priv->decode_fields = alps_decode_ss4_v2;
|
|
priv->set_abs_params = alps_set_abs_params_ss4_v2;
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
|
|
if (alps_set_defaults_ss4_v2(psmouse, priv))
|
|
return -EIO;
|
|
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct alps_protocol_info *alps_match_table(unsigned char *e7,
|
|
unsigned char *ec)
|
|
{
|
|
const struct alps_model_info *model;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
|
|
model = &alps_model_data[i];
|
|
|
|
if (!memcmp(e7, model->signature, sizeof(model->signature)))
|
|
return &model->protocol_info;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static bool alps_is_cs19_trackpoint(struct psmouse *psmouse)
|
|
{
|
|
u8 param[2] = { 0 };
|
|
|
|
if (ps2_command(&psmouse->ps2dev,
|
|
param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
|
|
return false;
|
|
|
|
/*
|
|
* param[0] contains the trackpoint device variant_id while
|
|
* param[1] contains the firmware_id. So far all alps
|
|
* trackpoint-only devices have their variant_ids equal
|
|
* TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
|
|
*/
|
|
return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20);
|
|
}
|
|
|
|
static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
|
|
{
|
|
const struct alps_protocol_info *protocol;
|
|
unsigned char e6[4], e7[4], ec[4];
|
|
int error;
|
|
|
|
/*
|
|
* First try "E6 report".
|
|
* ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
|
|
* The bits 0-2 of the first byte will be 1s if some buttons are
|
|
* pressed.
|
|
*/
|
|
if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES,
|
|
PSMOUSE_CMD_SETSCALE11, e6))
|
|
return -EIO;
|
|
|
|
if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Now get the "E7" and "EC" reports. These will uniquely identify
|
|
* most ALPS touchpads.
|
|
*/
|
|
if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES,
|
|
PSMOUSE_CMD_SETSCALE21, e7) ||
|
|
alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES,
|
|
PSMOUSE_CMD_RESET_WRAP, ec) ||
|
|
alps_exit_command_mode(psmouse))
|
|
return -EIO;
|
|
|
|
protocol = alps_match_table(e7, ec);
|
|
if (!protocol) {
|
|
if (e7[0] == 0x73 && e7[1] == 0x02 && e7[2] == 0x64 &&
|
|
ec[2] == 0x8a) {
|
|
protocol = &alps_v4_protocol_data;
|
|
} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 &&
|
|
ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) {
|
|
protocol = &alps_v5_protocol_data;
|
|
} else if (ec[0] == 0x88 &&
|
|
((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) {
|
|
protocol = &alps_v7_protocol_data;
|
|
} else if (ec[0] == 0x88 && ec[1] == 0x08) {
|
|
protocol = &alps_v3_rushmore_data;
|
|
} else if (ec[0] == 0x88 && ec[1] == 0x07 &&
|
|
ec[2] >= 0x90 && ec[2] <= 0x9d) {
|
|
protocol = &alps_v3_protocol_data;
|
|
} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
|
|
(e7[2] == 0x14 || e7[2] == 0x28)) {
|
|
protocol = &alps_v8_protocol_data;
|
|
} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0xc8) {
|
|
protocol = &alps_v9_protocol_data;
|
|
psmouse_warn(psmouse,
|
|
"Unsupported ALPS V9 touchpad: E7=%3ph, EC=%3ph\n",
|
|
e7, ec);
|
|
return -EINVAL;
|
|
} else {
|
|
psmouse_dbg(psmouse,
|
|
"Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (priv) {
|
|
/* Save Device ID and Firmware version */
|
|
memcpy(priv->dev_id, e7, 3);
|
|
memcpy(priv->fw_ver, ec, 3);
|
|
error = alps_set_protocol(psmouse, priv, protocol);
|
|
if (error)
|
|
return error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_reconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
psmouse_reset(psmouse);
|
|
|
|
if (alps_identify(psmouse, priv) < 0)
|
|
return -1;
|
|
|
|
return priv->hw_init(psmouse);
|
|
}
|
|
|
|
static void alps_disconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
psmouse_reset(psmouse);
|
|
del_timer_sync(&priv->timer);
|
|
if (priv->dev2)
|
|
input_unregister_device(priv->dev2);
|
|
if (!IS_ERR_OR_NULL(priv->dev3))
|
|
input_unregister_device(priv->dev3);
|
|
kfree(priv);
|
|
}
|
|
|
|
static void alps_set_abs_params_st(struct alps_data *priv,
|
|
struct input_dev *dev1)
|
|
{
|
|
input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0);
|
|
input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0);
|
|
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
|
}
|
|
|
|
static void alps_set_abs_params_mt_common(struct alps_data *priv,
|
|
struct input_dev *dev1)
|
|
{
|
|
input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0);
|
|
input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0);
|
|
|
|
input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res);
|
|
input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res);
|
|
|
|
set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
|
|
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
|
|
}
|
|
|
|
static void alps_set_abs_params_semi_mt(struct alps_data *priv,
|
|
struct input_dev *dev1)
|
|
{
|
|
alps_set_abs_params_mt_common(priv, dev1);
|
|
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
|
|
|
input_mt_init_slots(dev1, MAX_TOUCHES,
|
|
INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
|
|
INPUT_MT_SEMI_MT);
|
|
}
|
|
|
|
static void alps_set_abs_params_v7(struct alps_data *priv,
|
|
struct input_dev *dev1)
|
|
{
|
|
alps_set_abs_params_mt_common(priv, dev1);
|
|
set_bit(BTN_TOOL_QUINTTAP, dev1->keybit);
|
|
|
|
input_mt_init_slots(dev1, MAX_TOUCHES,
|
|
INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
|
|
INPUT_MT_TRACK);
|
|
|
|
set_bit(BTN_TOOL_QUINTTAP, dev1->keybit);
|
|
}
|
|
|
|
static void alps_set_abs_params_ss4_v2(struct alps_data *priv,
|
|
struct input_dev *dev1)
|
|
{
|
|
alps_set_abs_params_mt_common(priv, dev1);
|
|
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
|
set_bit(BTN_TOOL_QUINTTAP, dev1->keybit);
|
|
|
|
input_mt_init_slots(dev1, MAX_TOUCHES,
|
|
INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
|
|
INPUT_MT_TRACK);
|
|
}
|
|
|
|
int alps_init(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct input_dev *dev1 = psmouse->dev;
|
|
int error;
|
|
|
|
error = priv->hw_init(psmouse);
|
|
if (error)
|
|
goto init_fail;
|
|
|
|
/*
|
|
* Undo part of setup done for us by psmouse core since touchpad
|
|
* is not a relative device.
|
|
*/
|
|
__clear_bit(EV_REL, dev1->evbit);
|
|
__clear_bit(REL_X, dev1->relbit);
|
|
__clear_bit(REL_Y, dev1->relbit);
|
|
|
|
/*
|
|
* Now set up our capabilities.
|
|
*/
|
|
dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
|
|
dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
|
|
dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
|
|
dev1->keybit[BIT_WORD(BTN_LEFT)] |=
|
|
BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
|
|
|
|
dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
|
|
|
|
priv->set_abs_params(priv, dev1);
|
|
|
|
if (priv->flags & ALPS_WHEEL) {
|
|
dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
|
|
dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
|
|
}
|
|
|
|
if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
|
|
dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
|
|
dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
|
|
}
|
|
|
|
if (priv->flags & ALPS_FOUR_BUTTONS) {
|
|
dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
|
|
dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
|
|
dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
|
|
dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
|
|
} else if (priv->flags & ALPS_BUTTONPAD) {
|
|
set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit);
|
|
clear_bit(BTN_RIGHT, dev1->keybit);
|
|
} else {
|
|
dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
|
|
}
|
|
|
|
if (priv->flags & ALPS_DUALPOINT) {
|
|
struct input_dev *dev2;
|
|
|
|
dev2 = input_allocate_device();
|
|
if (!dev2) {
|
|
psmouse_err(psmouse,
|
|
"failed to allocate trackstick device\n");
|
|
error = -ENOMEM;
|
|
goto init_fail;
|
|
}
|
|
|
|
snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1",
|
|
psmouse->ps2dev.serio->phys);
|
|
dev2->phys = priv->phys2;
|
|
|
|
/*
|
|
* format of input device name is: "protocol vendor name"
|
|
* see function psmouse_switch_protocol() in psmouse-base.c
|
|
*/
|
|
dev2->name = "AlpsPS/2 ALPS DualPoint Stick";
|
|
|
|
dev2->id.bustype = BUS_I8042;
|
|
dev2->id.vendor = 0x0002;
|
|
dev2->id.product = PSMOUSE_ALPS;
|
|
dev2->id.version = priv->proto_version;
|
|
dev2->dev.parent = &psmouse->ps2dev.serio->dev;
|
|
|
|
input_set_capability(dev2, EV_REL, REL_X);
|
|
input_set_capability(dev2, EV_REL, REL_Y);
|
|
if (priv->flags & ALPS_DUALPOINT_WITH_PRESSURE) {
|
|
input_set_capability(dev2, EV_ABS, ABS_PRESSURE);
|
|
input_set_abs_params(dev2, ABS_PRESSURE, 0, 127, 0, 0);
|
|
}
|
|
input_set_capability(dev2, EV_KEY, BTN_LEFT);
|
|
input_set_capability(dev2, EV_KEY, BTN_RIGHT);
|
|
input_set_capability(dev2, EV_KEY, BTN_MIDDLE);
|
|
|
|
__set_bit(INPUT_PROP_POINTER, dev2->propbit);
|
|
__set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit);
|
|
|
|
error = input_register_device(dev2);
|
|
if (error) {
|
|
psmouse_err(psmouse,
|
|
"failed to register trackstick device: %d\n",
|
|
error);
|
|
input_free_device(dev2);
|
|
goto init_fail;
|
|
}
|
|
|
|
priv->dev2 = dev2;
|
|
}
|
|
|
|
priv->psmouse = psmouse;
|
|
|
|
INIT_DELAYED_WORK(&priv->dev3_register_work,
|
|
alps_register_bare_ps2_mouse);
|
|
|
|
psmouse->protocol_handler = alps_process_byte;
|
|
psmouse->poll = alps_poll;
|
|
psmouse->disconnect = alps_disconnect;
|
|
psmouse->reconnect = alps_reconnect;
|
|
psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6;
|
|
|
|
/* We are having trouble resyncing ALPS touchpads so disable it for now */
|
|
psmouse->resync_time = 0;
|
|
|
|
/* Allow 2 invalid packets without resetting device */
|
|
psmouse->resetafter = psmouse->pktsize * 2;
|
|
|
|
return 0;
|
|
|
|
init_fail:
|
|
psmouse_reset(psmouse);
|
|
/*
|
|
* Even though we did not allocate psmouse->private we do free
|
|
* it here.
|
|
*/
|
|
kfree(psmouse->private);
|
|
psmouse->private = NULL;
|
|
return error;
|
|
}
|
|
|
|
int alps_detect(struct psmouse *psmouse, bool set_properties)
|
|
{
|
|
struct alps_data *priv;
|
|
int error;
|
|
|
|
error = alps_identify(psmouse, NULL);
|
|
if (error)
|
|
return error;
|
|
|
|
/*
|
|
* ALPS cs19 is a trackpoint-only device, and uses different
|
|
* protocol than DualPoint ones, so we return -EINVAL here and let
|
|
* trackpoint.c drive this device. If the trackpoint driver is not
|
|
* enabled, the device will fall back to a bare PS/2 mouse.
|
|
* If ps2_command() fails here, we depend on the immediately
|
|
* followed psmouse_reset() to reset the device to normal state.
|
|
*/
|
|
if (alps_is_cs19_trackpoint(psmouse)) {
|
|
psmouse_dbg(psmouse,
|
|
"ALPS CS19 trackpoint-only device detected, ignoring\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* Reset the device to make sure it is fully operational:
|
|
* on some laptops, like certain Dell Latitudes, we may
|
|
* fail to properly detect presence of trackstick if device
|
|
* has not been reset.
|
|
*/
|
|
psmouse_reset(psmouse);
|
|
|
|
priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
error = alps_identify(psmouse, priv);
|
|
if (error) {
|
|
kfree(priv);
|
|
return error;
|
|
}
|
|
|
|
if (set_properties) {
|
|
psmouse->vendor = "ALPS";
|
|
psmouse->name = priv->flags & ALPS_DUALPOINT ?
|
|
"DualPoint TouchPad" : "GlidePoint";
|
|
psmouse->model = priv->proto_version;
|
|
} else {
|
|
/*
|
|
* Destroy alps_data structure we allocated earlier since
|
|
* this was just a "trial run". Otherwise we'll keep it
|
|
* to be used by alps_init() which has to be called if
|
|
* we succeed and set_properties is true.
|
|
*/
|
|
kfree(priv);
|
|
psmouse->private = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|