774 lines
22 KiB
C
774 lines
22 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/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_OLDPROTO 0x01 /* old style input */
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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 }, 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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/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
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{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
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{ { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
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{ { 0x52, 0x01, 0x14 }, 0xff, 0xff,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
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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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* PS/2 packet format
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*
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* byte 0: 0 0 YSGN XSGN 1 M R L
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* byte 1: X7 X6 X5 X4 X3 X2 X1 X0
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* byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
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*
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* Note that the device never signals overflow condition.
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*
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* ALPS absolute 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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* Dualpoint device -- interleaved packet format
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*
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* byte 0: 1 1 0 0 1 1 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 0 fin ges
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* byte 3: 0 0 YSGN XSGN 1 1 1 1
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* byte 4: X7 X6 X5 X4 X3 X2 X1 X0
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* byte 5: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
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* byte 6: 0 y9 y8 y7 1 m r l
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* byte 7: 0 y6 y5 y4 y3 y2 y1 y0
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* byte 8: 0 z6 z5 z4 z3 z2 z1 z0
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*
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* CAPITALS = stick, miniscules = touchpad
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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 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(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->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 (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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static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
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unsigned char packet[],
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bool report_buttons)
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{
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struct alps_data *priv = psmouse->private;
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struct input_dev *dev2 = priv->dev2;
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if (report_buttons)
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alps_report_buttons(psmouse, dev2, psmouse->dev,
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packet[0] & 1, packet[0] & 2, 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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}
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static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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if (psmouse->pktcnt < 6)
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return PSMOUSE_GOOD_DATA;
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if (psmouse->pktcnt == 6) {
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/*
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* Start a timer to flush the packet if it ends up last
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* 6-byte packet in the stream. Timer needs to fire
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* psmouse core times out itself. 20 ms should be enough
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* to decide if we are getting more data or not.
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*/
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mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20));
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return PSMOUSE_GOOD_DATA;
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}
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del_timer(&priv->timer);
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if (psmouse->packet[6] & 0x80) {
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/*
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* Highest bit is set - that means we either had
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* complete ALPS packet and this is start of the
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* next packet or we got garbage.
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*/
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if (((psmouse->packet[3] |
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psmouse->packet[4] |
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psmouse->packet[5]) & 0x80) ||
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(!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) {
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dbg("refusing packet %x %x %x %x "
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"(suspected interleaved ps/2)\n",
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psmouse->packet[3], psmouse->packet[4],
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psmouse->packet[5], psmouse->packet[6]);
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return PSMOUSE_BAD_DATA;
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}
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alps_process_packet(psmouse);
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/* Continue with the next packet */
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psmouse->packet[0] = psmouse->packet[6];
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psmouse->pktcnt = 1;
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} else {
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/*
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* High bit is 0 - that means that we indeed got a PS/2
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* packet in the middle of ALPS packet.
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*
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* There is also possibility that we got 6-byte ALPS
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* packet followed by 3-byte packet from trackpoint. We
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* can not distinguish between these 2 scenarios but
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* becase the latter is unlikely to happen in course of
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* normal operation (user would need to press all
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* buttons on the pad and start moving trackpoint
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* without touching the pad surface) we assume former.
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* Even if we are wrong the wost thing that would happen
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* the cursor would jump but we should not get protocol
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* desynchronization.
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*/
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alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
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false);
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/*
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* Continue with the standard ALPS protocol handling,
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* but make sure we won't process it as an interleaved
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* packet again, which may happen if all buttons are
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* pressed. To avoid this let's reset the 4th bit which
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* is normally 1.
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*/
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psmouse->packet[3] = psmouse->packet[6] & 0xf7;
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psmouse->pktcnt = 4;
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}
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return PSMOUSE_GOOD_DATA;
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}
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static void alps_flush_packet(unsigned long data)
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{
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struct psmouse *psmouse = (struct psmouse *)data;
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serio_pause_rx(psmouse->ps2dev.serio);
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if (psmouse->pktcnt == 6) {
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/*
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* We did not any more data in reasonable amount of time.
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* Validate the last 3 bytes and process as a standard
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* ALPS packet.
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*/
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if ((psmouse->packet[3] |
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psmouse->packet[4] |
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psmouse->packet[5]) & 0x80) {
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dbg("refusing packet %x %x %x "
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"(suspected interleaved ps/2)\n",
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psmouse->packet[3], psmouse->packet[4],
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psmouse->packet[5]);
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} else {
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alps_process_packet(psmouse);
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}
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psmouse->pktcnt = 0;
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}
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serio_continue_rx(psmouse->ps2dev.serio);
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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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const struct alps_model_info *model = priv->i;
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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_report_bare_ps2_packet(psmouse, psmouse->packet,
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true);
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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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/* Check for PS/2 packet stuffed in the middle of ALPS packet. */
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if ((model->flags & ALPS_PS2_INTERLEAVED) &&
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psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
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return alps_handle_interleaved_ps2(psmouse);
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}
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if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
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dbg("refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
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psmouse->packet[0], model->mask0, model->byte0);
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return PSMOUSE_BAD_DATA;
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}
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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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dbg("refusing packet[%i] = %x\n",
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psmouse->pktcnt - 1, psmouse->packet[psmouse->pktcnt - 1]);
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return PSMOUSE_BAD_DATA;
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}
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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]);
|
|
|
|
if (param[0] != 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;
|
|
|
|
dbg("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)))
|
|
return alps_model_data + i;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* 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(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(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;
|
|
|
|
dbg("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[6];
|
|
bool poll_failed;
|
|
|
|
if (priv->i->flags & ALPS_PASS)
|
|
alps_passthrough_mode(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(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(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(psmouse, true)) {
|
|
return -1;
|
|
}
|
|
|
|
if (alps_tap_mode(psmouse, true)) {
|
|
printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
|
|
return -1;
|
|
}
|
|
|
|
if (alps_absolute_mode(psmouse)) {
|
|
printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
|
|
return -1;
|
|
}
|
|
|
|
if ((model->flags & ALPS_PASS) &&
|
|
alps_passthrough_mode(psmouse, false)) {
|
|
return -1;
|
|
}
|
|
|
|
/* ALPS needs stream mode, otherwise it won't report any data */
|
|
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
|
|
printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
|
|
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);
|
|
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 (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 = 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;
|
|
}
|
|
|