![Dmitry Torokhov](/assets/img/avatar_default.png)
Instead of open-coded reporting number of fingers on the touchpad let's use input_mt_report_finger_count() helper. Acked-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
1711 lines
47 KiB
C
1711 lines
47 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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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 "psmouse.h"
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#include "alps.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_V3_X_MAX 2000
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#define ALPS_V3_Y_MAX 1400
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#define ALPS_BITMAP_X_BITS 15
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#define ALPS_BITMAP_Y_BITS 11
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#define ALPS_CMD_NIBBLE_10 0x01f2
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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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#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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static const struct alps_model_info alps_model_data[] = {
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{ { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
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{ { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */
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{ { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */
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{ { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
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{ { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
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{ { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
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{ { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
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{ { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
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{ { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
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{ { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
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{ { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
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{ { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
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/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
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{ { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
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{ { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
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{ { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
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{ { 0x73, 0x02, 0x64 }, 0x9b, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
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{ { 0x73, 0x02, 0x64 }, 0x9d, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
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{ { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 },
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};
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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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/* Packet formats are described in Documentation/input/alps.txt */
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static bool alps_is_valid_first_byte(const struct alps_model_info *model,
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unsigned char data)
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{
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return (data & model->mask0) == model->byte0;
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}
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static void alps_report_buttons(struct psmouse *psmouse,
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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 = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1;
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input_report_key(dev, BTN_LEFT, left);
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dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1;
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input_report_key(dev, BTN_RIGHT, right);
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dev = 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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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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const struct alps_model_info *model = priv->i;
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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 (model->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 (model->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 (model->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 ((model->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(psmouse, 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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alps_report_buttons(psmouse, 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 (model->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 (model->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 (model->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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/*
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* Process bitmap data from v3 and v4 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 x1, y1, x2, and y2 when the return value
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* is greater than 0.
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*/
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static int alps_process_bitmap(unsigned int x_map, unsigned int y_map,
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int *x1, int *y1, int *x2, int *y2)
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{
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struct alps_bitmap_point {
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int start_bit;
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int num_bits;
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};
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int fingers_x = 0, fingers_y = 0, fingers;
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int i, bit, prev_bit;
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struct alps_bitmap_point x_low = {0,}, x_high = {0,};
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struct alps_bitmap_point y_low = {0,}, y_high = {0,};
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struct alps_bitmap_point *point;
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if (!x_map || !y_map)
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return 0;
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*x1 = *y1 = *x2 = *y2 = 0;
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prev_bit = 0;
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point = &x_low;
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for (i = 0; x_map != 0; i++, x_map >>= 1) {
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bit = x_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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fingers_x++;
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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 = &x_high;
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else
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point->num_bits = 0;
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}
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prev_bit = bit;
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}
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/*
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* y bitmap is reversed for what we need (lower positions are in
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* higher bits), so we process from the top end.
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*/
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y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - ALPS_BITMAP_Y_BITS);
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prev_bit = 0;
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point = &y_low;
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for (i = 0; y_map != 0; i++, y_map <<= 1) {
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bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 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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fingers_y++;
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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 = &y_high;
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else
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point->num_bits = 0;
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}
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prev_bit = bit;
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}
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/*
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* Fingers can overlap, so we use the maximum count of fingers
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* on either axis as the finger count.
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*/
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fingers = max(fingers_x, fingers_y);
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/*
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* If total fingers is > 1 but either axis reports only a single
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* contact, we have overlapping or adjacent fingers. For the
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* purposes of creating a bounding box, divide the single contact
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* (roughly) equally between the two points.
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*/
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if (fingers > 1) {
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if (fingers_x == 1) {
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i = x_low.num_bits / 2;
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x_low.num_bits = x_low.num_bits - i;
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x_high.start_bit = x_low.start_bit + i;
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x_high.num_bits = max(i, 1);
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} else if (fingers_y == 1) {
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i = y_low.num_bits / 2;
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y_low.num_bits = y_low.num_bits - i;
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y_high.start_bit = y_low.start_bit + i;
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y_high.num_bits = max(i, 1);
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}
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}
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*x1 = (ALPS_V3_X_MAX * (2 * x_low.start_bit + x_low.num_bits - 1)) /
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(2 * (ALPS_BITMAP_X_BITS - 1));
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*y1 = (ALPS_V3_Y_MAX * (2 * y_low.start_bit + y_low.num_bits - 1)) /
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(2 * (ALPS_BITMAP_Y_BITS - 1));
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if (fingers > 1) {
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*x2 = (ALPS_V3_X_MAX * (2 * x_high.start_bit + x_high.num_bits - 1)) /
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(2 * (ALPS_BITMAP_X_BITS - 1));
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*y2 = (ALPS_V3_Y_MAX * (2 * y_high.start_bit + y_high.num_bits - 1)) /
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(2 * (ALPS_BITMAP_Y_BITS - 1));
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}
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return fingers;
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}
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static void alps_set_slot(struct input_dev *dev, int slot, bool active,
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int x, int y)
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{
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input_mt_slot(dev, slot);
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input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
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if (active) {
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input_report_abs(dev, ABS_MT_POSITION_X, x);
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input_report_abs(dev, ABS_MT_POSITION_Y, y);
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}
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}
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static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers,
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int x1, int y1, int x2, int y2)
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{
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alps_set_slot(dev, 0, num_fingers != 0, x1, y1);
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alps_set_slot(dev, 1, num_fingers == 2, x2, y2);
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}
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static void alps_process_trackstick_packet_v3(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 = priv->dev2;
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int x, y, z, left, right, middle;
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|
/* 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] & 0x7c) >> 2;
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* 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_process_touchpad_packet_v3(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;
|
|
int left, right, middle;
|
|
int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
|
|
int fingers = 0, bmap_fingers;
|
|
unsigned int x_bitmap, y_bitmap;
|
|
|
|
/*
|
|
* 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 (packet[0] & 0x40) {
|
|
fingers = (packet[5] & 0x3) + 1;
|
|
x_bitmap = ((packet[4] & 0x7e) << 8) |
|
|
((packet[1] & 0x7f) << 2) |
|
|
((packet[0] & 0x30) >> 4);
|
|
y_bitmap = ((packet[3] & 0x70) << 4) |
|
|
((packet[2] & 0x7f) << 1) |
|
|
(packet[4] & 0x01);
|
|
|
|
bmap_fingers = alps_process_bitmap(x_bitmap, y_bitmap,
|
|
&x1, &y1, &x2, &y2);
|
|
|
|
/*
|
|
* We shouldn't report more than one finger if
|
|
* we don't have two coordinates.
|
|
*/
|
|
if (fingers > 1 && bmap_fingers < 2)
|
|
fingers = bmap_fingers;
|
|
|
|
/* Now process position packet */
|
|
packet = priv->multi_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 (packet[0] & 0x40)
|
|
return;
|
|
|
|
if (!priv->multi_packet && (packet[4] & 0x40)) {
|
|
priv->multi_packet = 1;
|
|
memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
|
|
return;
|
|
}
|
|
|
|
priv->multi_packet = 0;
|
|
|
|
left = packet[3] & 0x01;
|
|
right = packet[3] & 0x02;
|
|
middle = packet[3] & 0x04;
|
|
|
|
x = ((packet[1] & 0x7f) << 4) | ((packet[4] & 0x30) >> 2) |
|
|
((packet[0] & 0x30) >> 4);
|
|
y = ((packet[2] & 0x7f) << 4) | (packet[4] & 0x0f);
|
|
z = packet[5] & 0x7f;
|
|
|
|
/*
|
|
* 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 (x && y && !z)
|
|
return;
|
|
|
|
/*
|
|
* If we don't have MT data or the bitmaps were empty, we have
|
|
* to rely on ST data.
|
|
*/
|
|
if (!fingers) {
|
|
x1 = x;
|
|
y1 = y;
|
|
fingers = z > 0 ? 1 : 0;
|
|
}
|
|
|
|
if (z >= 64)
|
|
input_report_key(dev, BTN_TOUCH, 1);
|
|
else
|
|
input_report_key(dev, BTN_TOUCH, 0);
|
|
|
|
alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
|
|
|
|
input_mt_report_finger_count(dev, fingers);
|
|
|
|
input_report_key(dev, BTN_LEFT, left);
|
|
input_report_key(dev, BTN_RIGHT, right);
|
|
input_report_key(dev, BTN_MIDDLE, middle);
|
|
|
|
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_sync(dev);
|
|
|
|
if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
|
|
left = packet[3] & 0x10;
|
|
right = packet[3] & 0x20;
|
|
middle = packet[3] & 0x40;
|
|
|
|
input_report_key(dev2, BTN_LEFT, left);
|
|
input_report_key(dev2, BTN_RIGHT, right);
|
|
input_report_key(dev2, BTN_MIDDLE, 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(psmouse);
|
|
}
|
|
|
|
static void alps_process_packet_v4(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char *packet = psmouse->packet;
|
|
struct input_dev *dev = psmouse->dev;
|
|
int offset;
|
|
int x, y, z;
|
|
int left, right;
|
|
int x1, y1, x2, y2;
|
|
int fingers = 0;
|
|
unsigned int x_bitmap, y_bitmap;
|
|
|
|
/*
|
|
* 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];
|
|
|
|
if (++priv->multi_packet > 2) {
|
|
priv->multi_packet = 0;
|
|
|
|
x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) |
|
|
((priv->multi_data[3] & 0x60) << 3) |
|
|
((priv->multi_data[0] & 0x3f) << 2) |
|
|
((priv->multi_data[1] & 0x60) >> 5);
|
|
y_bitmap = ((priv->multi_data[5] & 0x01) << 10) |
|
|
((priv->multi_data[3] & 0x1f) << 5) |
|
|
(priv->multi_data[1] & 0x1f);
|
|
|
|
fingers = alps_process_bitmap(x_bitmap, y_bitmap,
|
|
&x1, &y1, &x2, &y2);
|
|
|
|
/* Store MT data.*/
|
|
priv->fingers = fingers;
|
|
priv->x1 = x1;
|
|
priv->x2 = x2;
|
|
priv->y1 = y1;
|
|
priv->y2 = y2;
|
|
}
|
|
|
|
left = packet[4] & 0x01;
|
|
right = packet[4] & 0x02;
|
|
|
|
x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
|
|
((packet[0] & 0x30) >> 4);
|
|
y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
|
|
z = packet[5] & 0x7f;
|
|
|
|
/*
|
|
* If there were no contacts in the bitmap, use ST
|
|
* points in MT reports.
|
|
* If there were two contacts or more, report MT data.
|
|
*/
|
|
if (priv->fingers < 2) {
|
|
x1 = x;
|
|
y1 = y;
|
|
fingers = z > 0 ? 1 : 0;
|
|
} else {
|
|
fingers = priv->fingers;
|
|
x1 = priv->x1;
|
|
x2 = priv->x2;
|
|
y1 = priv->y1;
|
|
y2 = priv->y2;
|
|
}
|
|
|
|
if (z >= 64)
|
|
input_report_key(dev, BTN_TOUCH, 1);
|
|
else
|
|
input_report_key(dev, BTN_TOUCH, 0);
|
|
|
|
alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
|
|
|
|
input_mt_report_finger_count(dev, fingers);
|
|
|
|
input_report_key(dev, BTN_LEFT, left);
|
|
input_report_key(dev, BTN_RIGHT, right);
|
|
|
|
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_sync(dev);
|
|
}
|
|
|
|
static void alps_process_packet(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
const struct alps_model_info *model = priv->i;
|
|
|
|
switch (model->proto_version) {
|
|
case ALPS_PROTO_V1:
|
|
case ALPS_PROTO_V2:
|
|
alps_process_packet_v1_v2(psmouse);
|
|
break;
|
|
case ALPS_PROTO_V3:
|
|
alps_process_packet_v3(psmouse);
|
|
break;
|
|
case ALPS_PROTO_V4:
|
|
alps_process_packet_v4(psmouse);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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 *dev2 = priv->dev2;
|
|
|
|
if (report_buttons)
|
|
alps_report_buttons(psmouse, dev2, psmouse->dev,
|
|
packet[0] & 1, packet[0] & 2, packet[0] & 4);
|
|
|
|
input_report_rel(dev2, REL_X,
|
|
packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
|
|
input_report_rel(dev2, REL_Y,
|
|
packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
|
|
|
|
input_sync(dev2);
|
|
}
|
|
|
|
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->i, psmouse->packet[6]))) {
|
|
psmouse_dbg(psmouse,
|
|
"refusing packet %x %x %x %x (suspected interleaved ps/2)\n",
|
|
psmouse->packet[3], psmouse->packet[4],
|
|
psmouse->packet[5], psmouse->packet[6]);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
alps_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(unsigned long data)
|
|
{
|
|
struct psmouse *psmouse = (struct psmouse *)data;
|
|
|
|
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 %x %x %x (suspected interleaved ps/2)\n",
|
|
psmouse->packet[3], psmouse->packet[4],
|
|
psmouse->packet[5]);
|
|
} else {
|
|
alps_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;
|
|
const struct alps_model_info *model = priv->i;
|
|
|
|
if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
|
|
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 ((model->flags & ALPS_PS2_INTERLEAVED) &&
|
|
psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
|
|
return alps_handle_interleaved_ps2(psmouse);
|
|
}
|
|
|
|
if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
|
|
psmouse_dbg(psmouse,
|
|
"refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
|
|
psmouse->packet[0], model->mask0, model->byte0);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
/* Bytes 2 - pktsize should have 0 in the highest bit */
|
|
if (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]);
|
|
return PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
if (psmouse->pktcnt == psmouse->pktsize) {
|
|
alps_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_enter_command_mode(struct psmouse *psmouse,
|
|
unsigned char *resp)
|
|
{
|
|
unsigned char param[4];
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
|
ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
|
|
psmouse_err(psmouse, "failed to enter command mode\n");
|
|
return -1;
|
|
}
|
|
|
|
if (param[0] != 0x88 && param[1] != 0x07) {
|
|
psmouse_dbg(psmouse,
|
|
"unknown response while entering command mode: %2.2x %2.2x %2.2x\n",
|
|
param[0], param[1], param[2]);
|
|
return -1;
|
|
}
|
|
|
|
if (resp)
|
|
*resp = param[2];
|
|
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;
|
|
}
|
|
|
|
static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
|
|
unsigned char param[4];
|
|
const struct alps_model_info *model = NULL;
|
|
int i;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
|
|
return NULL;
|
|
|
|
param[0] = param[1] = param[2] = 0xff;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
|
return NULL;
|
|
|
|
psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x",
|
|
param[0], param[1], param[2]);
|
|
|
|
if ((param[0] & 0xf8) != 0 || param[1] != 0 ||
|
|
(param[2] != 10 && param[2] != 100))
|
|
return NULL;
|
|
|
|
/*
|
|
* Now try "E7 report". Allowed responses are in
|
|
* alps_model_data[].signature
|
|
*/
|
|
param[0] = 0;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
|
|
return NULL;
|
|
|
|
param[0] = param[1] = param[2] = 0xff;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
|
return NULL;
|
|
|
|
psmouse_dbg(psmouse, "E7 report: %2.2x %2.2x %2.2x",
|
|
param[0], param[1], param[2]);
|
|
|
|
if (version) {
|
|
for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
|
|
/* empty */;
|
|
*version = (param[0] << 8) | (param[1] << 4) | i;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
|
|
if (!memcmp(param, alps_model_data[i].signature,
|
|
sizeof(alps_model_data[i].signature))) {
|
|
model = alps_model_data + i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (model && model->proto_version > ALPS_PROTO_V2) {
|
|
/*
|
|
* Need to check command mode response to identify
|
|
* model
|
|
*/
|
|
model = NULL;
|
|
if (alps_enter_command_mode(psmouse, param)) {
|
|
psmouse_warn(psmouse,
|
|
"touchpad failed to enter command mode\n");
|
|
} else {
|
|
for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
|
|
if (alps_model_data[i].proto_version > ALPS_PROTO_V2 &&
|
|
alps_model_data[i].command_mode_resp == param[0]) {
|
|
model = alps_model_data + i;
|
|
break;
|
|
}
|
|
}
|
|
alps_exit_command_mode(psmouse);
|
|
|
|
if (!model)
|
|
psmouse_dbg(psmouse,
|
|
"Unknown command mode response %2.2x\n",
|
|
param[0]);
|
|
}
|
|
}
|
|
|
|
return model;
|
|
}
|
|
|
|
/*
|
|
* 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(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
|
|
}
|
|
|
|
static int alps_get_status(struct psmouse *psmouse, char *param)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
|
|
/* Get status: 0xF5 0xF5 0xF5 0xE9 */
|
|
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, param, PSMOUSE_CMD_GETINFO))
|
|
return -1;
|
|
|
|
psmouse_dbg(psmouse, "Status: %2.2x %2.2x %2.2x",
|
|
param[0], param[1], param[2]);
|
|
|
|
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->i->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->i->flags & ALPS_PASS)
|
|
alps_passthrough_mode_v2(psmouse, false);
|
|
|
|
if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->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;
|
|
const struct alps_model_info *model = priv->i;
|
|
|
|
if ((model->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 ((model->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;
|
|
}
|
|
|
|
/*
|
|
* Enable or disable passthrough mode to the trackstick. Must be in
|
|
* command mode when calling this function.
|
|
*/
|
|
static int alps_passthrough_mode_v3(struct psmouse *psmouse, bool enable)
|
|
{
|
|
int reg_val;
|
|
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
|
|
if (reg_val == -1)
|
|
return -1;
|
|
|
|
if (enable)
|
|
reg_val |= 0x01;
|
|
else
|
|
reg_val &= ~0x01;
|
|
|
|
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* 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_hw_init_v3(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
int reg_val;
|
|
unsigned char param[4];
|
|
|
|
priv->nibble_commands = alps_v3_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
|
|
|
if (alps_enter_command_mode(psmouse, NULL))
|
|
goto error;
|
|
|
|
/* Check for trackstick */
|
|
reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
|
|
if (reg_val == -1)
|
|
goto error;
|
|
if (reg_val & 0x80) {
|
|
if (alps_passthrough_mode_v3(psmouse, true))
|
|
goto error;
|
|
if (alps_exit_command_mode(psmouse))
|
|
goto error;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
param[0] = 0x64;
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
|
ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
|
|
psmouse_warn(psmouse, "trackstick E7 report failed\n");
|
|
} else {
|
|
psmouse_dbg(psmouse,
|
|
"trackstick E7 report: %2.2x %2.2x %2.2x\n",
|
|
param[0], param[1], param[2]);
|
|
|
|
/*
|
|
* Not sure what this does, but it is absolutely
|
|
* essential. Without it, the touchpad does not
|
|
* work at all and the trackstick just emits normal
|
|
* PS/2 packets.
|
|
*/
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
|
alps_command_mode_send_nibble(psmouse, 0x9) ||
|
|
alps_command_mode_send_nibble(psmouse, 0x4)) {
|
|
psmouse_err(psmouse,
|
|
"Error sending magic E6 sequence\n");
|
|
goto error_passthrough;
|
|
}
|
|
}
|
|
|
|
if (alps_enter_command_mode(psmouse, NULL))
|
|
goto error_passthrough;
|
|
if (alps_passthrough_mode_v3(psmouse, false))
|
|
goto error;
|
|
}
|
|
|
|
if (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;
|
|
|
|
/*
|
|
* This ensures the trackstick packets are in the format
|
|
* supported by this driver. If bit 1 isn't set the packet
|
|
* format is different.
|
|
*/
|
|
if (alps_command_mode_write_reg(psmouse, 0x0008, 0x82))
|
|
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_passthrough:
|
|
/* Something failed while in passthrough mode, so try to get out */
|
|
if (!alps_enter_command_mode(psmouse, NULL))
|
|
alps_passthrough_mode_v3(psmouse, false);
|
|
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;
|
|
}
|
|
|
|
/* 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 alps_data *priv = psmouse->private;
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[4];
|
|
|
|
priv->nibble_commands = alps_v4_nibble_commands;
|
|
priv->addr_command = PSMOUSE_CMD_DISABLE;
|
|
|
|
if (alps_enter_command_mode(psmouse, NULL))
|
|
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_hw_init(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
const struct alps_model_info *model = priv->i;
|
|
int ret = -1;
|
|
|
|
switch (model->proto_version) {
|
|
case ALPS_PROTO_V1:
|
|
case ALPS_PROTO_V2:
|
|
ret = alps_hw_init_v1_v2(psmouse);
|
|
break;
|
|
case ALPS_PROTO_V3:
|
|
ret = alps_hw_init_v3(psmouse);
|
|
break;
|
|
case ALPS_PROTO_V4:
|
|
ret = alps_hw_init_v4(psmouse);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int alps_reconnect(struct psmouse *psmouse)
|
|
{
|
|
const struct alps_model_info *model;
|
|
|
|
psmouse_reset(psmouse);
|
|
|
|
model = alps_get_model(psmouse, NULL);
|
|
if (!model)
|
|
return -1;
|
|
|
|
return alps_hw_init(psmouse);
|
|
}
|
|
|
|
static void alps_disconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
psmouse_reset(psmouse);
|
|
del_timer_sync(&priv->timer);
|
|
input_unregister_device(priv->dev2);
|
|
kfree(priv);
|
|
}
|
|
|
|
int alps_init(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv;
|
|
const struct alps_model_info *model;
|
|
struct input_dev *dev1 = psmouse->dev, *dev2;
|
|
int version;
|
|
|
|
priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
|
|
dev2 = input_allocate_device();
|
|
if (!priv || !dev2)
|
|
goto init_fail;
|
|
|
|
priv->dev2 = dev2;
|
|
setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse);
|
|
|
|
psmouse->private = priv;
|
|
|
|
psmouse_reset(psmouse);
|
|
|
|
model = alps_get_model(psmouse, &version);
|
|
if (!model)
|
|
goto init_fail;
|
|
|
|
priv->i = model;
|
|
|
|
if (alps_hw_init(psmouse))
|
|
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);
|
|
|
|
switch (model->proto_version) {
|
|
case ALPS_PROTO_V1:
|
|
case ALPS_PROTO_V2:
|
|
input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
|
|
input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
|
|
break;
|
|
case ALPS_PROTO_V3:
|
|
case ALPS_PROTO_V4:
|
|
set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
|
|
input_mt_init_slots(dev1, 2);
|
|
input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, ALPS_V3_X_MAX, 0, 0);
|
|
input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, ALPS_V3_Y_MAX, 0, 0);
|
|
|
|
set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit);
|
|
set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
|
|
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
|
|
|
|
input_set_abs_params(dev1, ABS_X, 0, ALPS_V3_X_MAX, 0, 0);
|
|
input_set_abs_params(dev1, ABS_Y, 0, ALPS_V3_Y_MAX, 0, 0);
|
|
break;
|
|
}
|
|
|
|
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
|
|
|
if (model->flags & ALPS_WHEEL) {
|
|
dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
|
|
dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
|
|
}
|
|
|
|
if (model->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 (model->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 {
|
|
dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
|
|
}
|
|
|
|
snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
|
|
dev2->phys = priv->phys;
|
|
dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
|
|
dev2->id.bustype = BUS_I8042;
|
|
dev2->id.vendor = 0x0002;
|
|
dev2->id.product = PSMOUSE_ALPS;
|
|
dev2->id.version = 0x0000;
|
|
dev2->dev.parent = &psmouse->ps2dev.serio->dev;
|
|
|
|
dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
|
|
dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
|
|
dev2->keybit[BIT_WORD(BTN_LEFT)] =
|
|
BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
|
|
|
|
if (input_register_device(priv->dev2))
|
|
goto init_fail;
|
|
|
|
psmouse->protocol_handler = alps_process_byte;
|
|
psmouse->poll = alps_poll;
|
|
psmouse->disconnect = alps_disconnect;
|
|
psmouse->reconnect = alps_reconnect;
|
|
psmouse->pktsize = model->proto_version == ALPS_PROTO_V4 ? 8 : 6;
|
|
|
|
/* We are having trouble resyncing ALPS touchpads so disable it for now */
|
|
psmouse->resync_time = 0;
|
|
|
|
return 0;
|
|
|
|
init_fail:
|
|
psmouse_reset(psmouse);
|
|
input_free_device(dev2);
|
|
kfree(priv);
|
|
psmouse->private = NULL;
|
|
return -1;
|
|
}
|
|
|
|
int alps_detect(struct psmouse *psmouse, bool set_properties)
|
|
{
|
|
int version;
|
|
const struct alps_model_info *model;
|
|
|
|
model = alps_get_model(psmouse, &version);
|
|
if (!model)
|
|
return -1;
|
|
|
|
if (set_properties) {
|
|
psmouse->vendor = "ALPS";
|
|
psmouse->name = model->flags & ALPS_DUALPOINT ?
|
|
"DualPoint TouchPad" : "GlidePoint";
|
|
psmouse->model = version;
|
|
}
|
|
return 0;
|
|
}
|
|
|