c30b4c10d9
I have an Ahtec laptop with a ALPS GlidePoint device, with 4 buttons. With Linux hernel 2.6.12rc4 and rc5 I'm unable to use the vertical scroll buttons (BACK and FORWARD). BACK gets detected as BTN_MIDDLE and FORWARD is undetected. I've modified the drivers/input/mouse/alps.c from 2.6.12rc5 and now it works fine! Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
490 lines
14 KiB
C
490 lines
14 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 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 struct alps_model_info alps_model_data[] = {
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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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{ { 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, 0 },
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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 }, /* Dell Latitude D800 */
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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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};
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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, struct pt_regs *regs)
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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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input_regs(dev, regs);
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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] & 0x08;
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right = packet[2] & 0x10;
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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[2] & 4;
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forward = packet[0] & 0x10;
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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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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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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_sync(dev);
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input_sync(dev2);
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return;
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}
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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[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08));
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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, struct pt_regs *regs)
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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, regs);
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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, regs);
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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 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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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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for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++);
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*version = (param[0] << 8) | (param[1] << 4) | i;
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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, 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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unsigned char param[3];
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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_command(ps2dev, param, 0x0300);
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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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static int alps_reconnect(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char param[4];
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int version;
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psmouse_reset(psmouse);
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if (!(priv->i = alps_get_model(psmouse, &version)))
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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_get_status(psmouse, param))
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return -1;
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if (param[0] & 0x04)
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alps_tap_mode(psmouse, 1);
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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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return 0;
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}
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static void alps_disconnect(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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psmouse_reset(psmouse);
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input_unregister_device(&priv->dev2);
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kfree(priv);
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}
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int alps_init(struct psmouse *psmouse)
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{
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struct alps_data *priv;
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unsigned char param[4];
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int version;
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psmouse->private = priv = kmalloc(sizeof(struct alps_data), GFP_KERNEL);
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if (!priv)
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goto init_fail;
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memset(priv, 0, sizeof(struct alps_data));
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if (!(priv->i = alps_get_model(psmouse, &version)))
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goto init_fail;
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if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1))
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goto init_fail;
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if (alps_get_status(psmouse, param)) {
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printk(KERN_ERR "alps.c: touchpad status report request failed\n");
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goto init_fail;
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}
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if (param[0] & 0x04) {
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printk(KERN_INFO "alps.c: Enabling hardware tapping\n");
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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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}
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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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goto init_fail;
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}
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if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0))
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goto init_fail;
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psmouse->dev.evbit[LONG(EV_KEY)] |= BIT(EV_KEY);
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psmouse->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
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psmouse->dev.keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER);
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psmouse->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
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psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS);
|
|
input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0);
|
|
input_set_abs_params(&psmouse->dev, ABS_Y, 0, 767, 0, 0);
|
|
input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0);
|
|
|
|
if (priv->i->flags & ALPS_WHEEL) {
|
|
psmouse->dev.evbit[LONG(EV_REL)] |= BIT(EV_REL);
|
|
psmouse->dev.relbit[LONG(REL_WHEEL)] |= BIT(REL_WHEEL);
|
|
}
|
|
|
|
if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
|
|
psmouse->dev.keybit[LONG(BTN_FORWARD)] |= BIT(BTN_FORWARD);
|
|
psmouse->dev.keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK);
|
|
}
|
|
|
|
sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys);
|
|
priv->dev2.phys = priv->phys;
|
|
priv->dev2.name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
|
|
priv->dev2.id.bustype = BUS_I8042;
|
|
priv->dev2.id.vendor = 0x0002;
|
|
priv->dev2.id.product = PSMOUSE_ALPS;
|
|
priv->dev2.id.version = 0x0000;
|
|
|
|
priv->dev2.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
|
|
priv->dev2.relbit[LONG(REL_X)] |= BIT(REL_X) | BIT(REL_Y);
|
|
priv->dev2.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
|
|
|
|
input_register_device(&priv->dev2);
|
|
|
|
printk(KERN_INFO "input: %s on %s\n", priv->dev2.name, psmouse->ps2dev.serio->phys);
|
|
|
|
psmouse->protocol_handler = alps_process_byte;
|
|
psmouse->disconnect = alps_disconnect;
|
|
psmouse->reconnect = alps_reconnect;
|
|
psmouse->pktsize = 6;
|
|
|
|
return 0;
|
|
|
|
init_fail:
|
|
kfree(priv);
|
|
return -1;
|
|
}
|
|
|
|
int alps_detect(struct psmouse *psmouse, int set_properties)
|
|
{
|
|
int version;
|
|
struct alps_model_info *model;
|
|
|
|
if (!(model = alps_get_model(psmouse, &version)))
|
|
return -1;
|
|
|
|
if (set_properties) {
|
|
psmouse->vendor = "ALPS";
|
|
psmouse->name = model->flags & ALPS_DUALPOINT ?
|
|
"DualPoint TouchPad" : "GlidePoint";
|
|
psmouse->model = version;
|
|
}
|
|
return 0;
|
|
}
|
|
|