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d7ed5d883c
When pressing any button belonging to the touchpoint, the generated click events don't belong to the touchpoint but to the touchpad. This patch fixes this behaviour, the events will be sent via the correct device, so scrolling with touchpoint is possible. Signed-off-by: Ulrich Dangel <uli@spamt.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
540 lines
15 KiB
C
540 lines
15 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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*
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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/input.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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#undef DEBUG
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#ifdef DEBUG
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#define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg)
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#else
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#define dbg(format, arg...) do {} while (0)
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#endif
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#define ALPS_DUALPOINT 0x01
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#define ALPS_WHEEL 0x02
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#define ALPS_FW_BK_1 0x04
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#define ALPS_4BTN 0x08
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#define ALPS_OLDPROTO 0x10
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#define ALPS_PASS 0x20
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#define ALPS_FW_BK_2 0x40
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static const struct alps_model_info alps_model_data[] = {
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{ { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
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{ { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
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{ { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
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{ { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
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{ { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */
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{ { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
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{ { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
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{ { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
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{ { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
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{ { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
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{ { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
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{ { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
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{ { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
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{ { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
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{ { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
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{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude E6500 */
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{ { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 }, /* Dell Vostro 1400 */
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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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/*
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* ALPS abolute Mode - new format
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*
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* byte 0: 1 ? ? ? 1 ? ? ?
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* byte 1: 0 x6 x5 x4 x3 x2 x1 x0
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* byte 2: 0 x10 x9 x8 x7 ? fin ges
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* byte 3: 0 y9 y8 y7 1 M R L
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* byte 4: 0 y6 y5 y4 y3 y2 y1 y0
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* byte 5: 0 z6 z5 z4 z3 z2 z1 z0
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*
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* ?'s can have different meanings on different models,
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* such as wheel rotation, extra buttons, stick buttons
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* on a dualpoint, etc.
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*/
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static void alps_process_packet(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 ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */
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input_report_key(dev2, BTN_LEFT, packet[0] & 1);
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input_report_key(dev2, BTN_RIGHT, packet[0] & 2);
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input_report_key(dev2, BTN_MIDDLE, packet[0] & 4);
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input_report_rel(dev2, REL_X,
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packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
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input_report_rel(dev2, REL_Y,
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packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
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input_sync(dev2);
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return;
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}
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if (priv->i->flags & ALPS_OLDPROTO) {
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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->i->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->i->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->i->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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input_report_key(dev2, BTN_LEFT, left);
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input_report_key(dev2, BTN_RIGHT, right);
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input_report_key(dev2, BTN_MIDDLE, middle);
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input_sync(dev);
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input_sync(dev2);
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return;
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}
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_MIDDLE, middle);
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/* Convert hardware tap to a reasonable Z value */
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if (ges && !fin) 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) input_report_key(dev, BTN_TOUCH, 1);
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if (z < 25) 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->i->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->i->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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input_sync(dev);
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}
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static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
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if (psmouse->pktcnt == 3) {
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alps_process_packet(psmouse);
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return PSMOUSE_FULL_PACKET;
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}
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return PSMOUSE_GOOD_DATA;
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}
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if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0)
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return PSMOUSE_BAD_DATA;
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/* Bytes 2 - 6 should have 0 in the highest bit */
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if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
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(psmouse->packet[psmouse->pktcnt - 1] & 0x80))
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return PSMOUSE_BAD_DATA;
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if (psmouse->pktcnt == 6) {
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alps_process_packet(psmouse);
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return PSMOUSE_FULL_PACKET;
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}
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return PSMOUSE_GOOD_DATA;
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}
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static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
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unsigned char param[4];
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int i;
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/*
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* First try "E6 report".
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* ALPS should return 0,0,10 or 0,0,100
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*/
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param[0] = 0;
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if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
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return NULL;
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param[0] = param[1] = param[2] = 0xff;
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if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
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return NULL;
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dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
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if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100))
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return NULL;
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/*
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* Now try "E7 report". Allowed responses are in
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* alps_model_data[].signature
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*/
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param[0] = 0;
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if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
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return NULL;
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param[0] = param[1] = param[2] = 0xff;
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if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
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return NULL;
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dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
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if (version) {
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for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
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/* empty */;
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*version = (param[0] << 8) | (param[1] << 4) | i;
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}
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for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
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if (!memcmp(param, alps_model_data[i].signature,
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sizeof(alps_model_data[i].signature)))
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return alps_model_data + i;
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return NULL;
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}
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/*
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* For DualPoint devices select the device that should respond to
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* subsequent commands. It looks like glidepad is behind stickpointer,
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* I'd thought it would be other way around...
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*/
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static int alps_passthrough_mode(struct psmouse *psmouse, int enable)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
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if (ps2_command(ps2dev, NULL, cmd) ||
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ps2_command(ps2dev, NULL, cmd) ||
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ps2_command(ps2dev, NULL, cmd) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
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return -1;
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/* we may get 3 more bytes, just ignore them */
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ps2_drain(ps2dev, 3, 100);
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return 0;
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}
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static int alps_absolute_mode(struct psmouse *psmouse)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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/* Try ALPS magic knock - 4 disable before enable */
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if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
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return -1;
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/*
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* Switch mouse to poll (remote) mode so motion data will not
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* get in our way
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*/
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return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
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}
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static int alps_get_status(struct psmouse *psmouse, char *param)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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/* Get status: 0xF5 0xF5 0xF5 0xE9 */
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if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
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return -1;
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dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
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return 0;
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}
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/*
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* Turn touchpad tapping on or off. The sequences are:
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* 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
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* 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
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* My guess that 0xE9 (GetInfo) is here as a sync point.
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* For models that also have stickpointer (DualPoints) its tapping
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* is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
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* we don't fiddle with it.
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*/
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static int alps_tap_mode(struct psmouse *psmouse, int enable)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
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unsigned char tap_arg = enable ? 0x0A : 0x00;
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unsigned char param[4];
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if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
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ps2_command(ps2dev, &tap_arg, cmd))
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return -1;
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if (alps_get_status(psmouse, param))
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return -1;
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return 0;
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}
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/*
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* alps_poll() - poll the touchpad for current motion packet.
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* Used in resync.
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*/
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static int alps_poll(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char buf[6];
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int poll_failed;
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if (priv->i->flags & ALPS_PASS)
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alps_passthrough_mode(psmouse, 1);
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poll_failed = ps2_command(&psmouse->ps2dev, buf,
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PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
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if (priv->i->flags & ALPS_PASS)
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alps_passthrough_mode(psmouse, 0);
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if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
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return -1;
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if ((psmouse->badbyte & 0xc8) == 0x08) {
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/*
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* Poll the track stick ...
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*/
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if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
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return -1;
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}
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memcpy(psmouse->packet, buf, sizeof(buf));
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return 0;
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}
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static int alps_hw_init(struct psmouse *psmouse, int *version)
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{
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struct alps_data *priv = psmouse->private;
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priv->i = alps_get_model(psmouse, version);
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if (!priv->i)
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return -1;
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if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1))
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return -1;
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if (alps_tap_mode(psmouse, 1)) {
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printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
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return -1;
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}
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if (alps_absolute_mode(psmouse)) {
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printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
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return -1;
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}
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if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0))
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return -1;
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/* ALPS needs stream mode, otherwise it won't report any data */
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if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
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printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_reconnect(struct psmouse *psmouse)
|
|
{
|
|
psmouse_reset(psmouse);
|
|
|
|
if (alps_hw_init(psmouse, NULL))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void alps_disconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
psmouse_reset(psmouse);
|
|
input_unregister_device(priv->dev2);
|
|
kfree(priv);
|
|
}
|
|
|
|
int alps_init(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv;
|
|
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;
|
|
psmouse->private = priv;
|
|
|
|
if (alps_hw_init(psmouse, &version))
|
|
goto init_fail;
|
|
|
|
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_MIDDLE) | BIT_MASK(BTN_RIGHT);
|
|
|
|
dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
|
|
input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
|
|
input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
|
|
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
|
|
|
if (priv->i->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->i->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);
|
|
}
|
|
|
|
snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
|
|
dev2->phys = priv->phys;
|
|
dev2->name = (priv->i->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 = 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, int 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;
|
|
}
|
|
|