11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ALPS touchpad PS/2 mouse driver 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 5963f626dSPeter Osterlund * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> 61da177e4SLinus Torvalds * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> 71da177e4SLinus Torvalds * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> 81d9f2626SSebastian Kapfer * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * ALPS detection, tap switching and status querying info is taken from 111da177e4SLinus Torvalds * tpconfig utility (by C. Scott Ananian and Bruce Kall). 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify it 141da177e4SLinus Torvalds * under the terms of the GNU General Public License version 2 as published by 151da177e4SLinus Torvalds * the Free Software Foundation. 161da177e4SLinus Torvalds */ 171da177e4SLinus Torvalds 185a0e3ad6STejun Heo #include <linux/slab.h> 191da177e4SLinus Torvalds #include <linux/input.h> 2001ce661fSSeth Forshee #include <linux/input/mt.h> 211da177e4SLinus Torvalds #include <linux/serio.h> 221da177e4SLinus Torvalds #include <linux/libps2.h> 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #include "psmouse.h" 251da177e4SLinus Torvalds #include "alps.h" 261da177e4SLinus Torvalds 2725bded7cSSeth Forshee /* 2825bded7cSSeth Forshee * Definitions for ALPS version 3 and 4 command mode protocol 2925bded7cSSeth Forshee */ 3025bded7cSSeth Forshee #define ALPS_CMD_NIBBLE_10 0x01f2 3125bded7cSSeth Forshee 32cd401204SKevin Cernekee #define ALPS_REG_BASE_RUSHMORE 0xc2c0 33cd401204SKevin Cernekee #define ALPS_REG_BASE_PINNACLE 0x0000 34cd401204SKevin Cernekee 3525bded7cSSeth Forshee static const struct alps_nibble_commands alps_v3_nibble_commands[] = { 3625bded7cSSeth Forshee { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ 3725bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 3825bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 3925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 4025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 4125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 4225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 4325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 4425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 4525bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 4625bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 4725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 4825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 4925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 5025bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 5125bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 5225bded7cSSeth Forshee }; 5325bded7cSSeth Forshee 5425bded7cSSeth Forshee static const struct alps_nibble_commands alps_v4_nibble_commands[] = { 5525bded7cSSeth Forshee { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 5625bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 5725bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 5825bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 5925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 6025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 6125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 6225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 6325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 6425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 6525bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 6625bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 6725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 6825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 6925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 7025bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 7125bded7cSSeth Forshee }; 7225bded7cSSeth Forshee 7395f75e91SYunkang Tang static const struct alps_nibble_commands alps_v6_nibble_commands[] = { 7495f75e91SYunkang Tang { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 7595f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ 7695f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ 7795f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ 7895f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ 7995f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ 8095f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ 8195f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ 8295f75e91SYunkang Tang { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ 8395f75e91SYunkang Tang { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ 8495f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ 8595f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ 8695f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ 8795f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ 8895f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ 8995f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 9095f75e91SYunkang Tang }; 9195f75e91SYunkang Tang 9225bded7cSSeth Forshee 9371bb21b6SMaxim Levitsky #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ 9471bb21b6SMaxim Levitsky #define ALPS_PASS 0x04 /* device has a pass-through port */ 9571bb21b6SMaxim Levitsky 9671bb21b6SMaxim Levitsky #define ALPS_WHEEL 0x08 /* hardware wheel present */ 9771bb21b6SMaxim Levitsky #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ 9871bb21b6SMaxim Levitsky #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ 9971bb21b6SMaxim Levitsky #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ 1001d9f2626SSebastian Kapfer #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 1011d9f2626SSebastian Kapfer 6-byte ALPS packet */ 1023808843cSYunkang Tang #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ 1031da177e4SLinus Torvalds 104e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 1058326bb57SDmitry Torokhov { { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */ 1068326bb57SDmitry Torokhov { { 0x33, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */ 1078326bb57SDmitry Torokhov { { 0x53, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1088326bb57SDmitry Torokhov { { 0x53, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1098326bb57SDmitry Torokhov { { 0x60, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, /* HP ze1115 */ 1108326bb57SDmitry Torokhov { { 0x63, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1118326bb57SDmitry Torokhov { { 0x63, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1128326bb57SDmitry Torokhov { { 0x63, 0x02, 0x28 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Fujitsu Siemens S6010 */ 1138326bb57SDmitry Torokhov { { 0x63, 0x02, 0x3c }, 0x00, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-103 */ 1148326bb57SDmitry Torokhov { { 0x63, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 } }, /* NEC Versa L320 */ 1158326bb57SDmitry Torokhov { { 0x63, 0x02, 0x64 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1168326bb57SDmitry Torokhov { { 0x63, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D800 */ 1178326bb57SDmitry Torokhov { { 0x73, 0x00, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG */ 1188326bb57SDmitry Torokhov { { 0x73, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1198326bb57SDmitry Torokhov { { 0x73, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Ahtec Laptop */ 120626b9da0SDmitry Torokhov 121626b9da0SDmitry Torokhov /* 122626b9da0SDmitry Torokhov * XXX This entry is suspicious. First byte has zero lower nibble, 123626b9da0SDmitry Torokhov * which is what a normal mouse would report. Also, the value 0x0e 124626b9da0SDmitry Torokhov * isn't valid per PS/2 spec. 125626b9da0SDmitry Torokhov */ 126626b9da0SDmitry Torokhov { { 0x20, 0x02, 0x0e }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 127626b9da0SDmitry Torokhov 1288326bb57SDmitry Torokhov { { 0x22, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 1298326bb57SDmitry Torokhov { { 0x22, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */ 1301d9f2626SSebastian Kapfer /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 1318326bb57SDmitry Torokhov { { 0x62, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, 1328326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, 1338326bb57SDmitry Torokhov { { 0x73, 0x00, 0x14 }, 0x00, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */ 1348326bb57SDmitry Torokhov { { 0x73, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */ 1358326bb57SDmitry Torokhov { { 0x52, 0x01, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, 1368326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */ 1378326bb57SDmitry Torokhov { { 0x73, 0x02, 0x64 }, 0x8a, { ALPS_PROTO_V4, 0x8f, 0x8f, 0 } }, 1381da177e4SLinus Torvalds }; 1391da177e4SLinus Torvalds 1403296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_protocol_data = { 1413296f71cSDmitry Torokhov ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT 1423296f71cSDmitry Torokhov }; 1433296f71cSDmitry Torokhov 1443296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_rushmore_data = { 1453296f71cSDmitry Torokhov ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT 1463296f71cSDmitry Torokhov }; 1473296f71cSDmitry Torokhov 1483296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v5_protocol_data = { 1493296f71cSDmitry Torokhov ALPS_PROTO_V5, 0xc8, 0xd8, 0 1503296f71cSDmitry Torokhov }; 1513296f71cSDmitry Torokhov 1523296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v7_protocol_data = { 1533296f71cSDmitry Torokhov ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT 1543296f71cSDmitry Torokhov }; 1553296f71cSDmitry Torokhov 15624af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 15724af5cb9SKevin Cernekee struct input_dev *dev1); 15824af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 15924af5cb9SKevin Cernekee struct input_dev *dev1); 16024af5cb9SKevin Cernekee 161d4b347b2SSeth Forshee /* Packet formats are described in Documentation/input/alps.txt */ 1621da177e4SLinus Torvalds 16399df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 1641d9f2626SSebastian Kapfer unsigned char data) 1651d9f2626SSebastian Kapfer { 16699df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 1671d9f2626SSebastian Kapfer } 1681d9f2626SSebastian Kapfer 16904aae283SPali Rohár static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, 1701d9f2626SSebastian Kapfer int left, int right, int middle) 1711d9f2626SSebastian Kapfer { 1721d9f2626SSebastian Kapfer struct input_dev *dev; 1731d9f2626SSebastian Kapfer 1741d9f2626SSebastian Kapfer /* 1751d9f2626SSebastian Kapfer * If shared button has already been reported on the 1761d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 1771d9f2626SSebastian Kapfer * sent through that device. 1781d9f2626SSebastian Kapfer */ 17904aae283SPali Rohár dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1; 1801d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 1811d9f2626SSebastian Kapfer 18204aae283SPali Rohár dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1; 1831d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 1841d9f2626SSebastian Kapfer 18504aae283SPali Rohár dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1; 1861d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 1871d9f2626SSebastian Kapfer 1881d9f2626SSebastian Kapfer /* 1891d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 1901d9f2626SSebastian Kapfer * device later once we report the rest of the events. 1911d9f2626SSebastian Kapfer */ 19204aae283SPali Rohár if (dev2) 1931d9f2626SSebastian Kapfer input_sync(dev2); 1941d9f2626SSebastian Kapfer } 1951d9f2626SSebastian Kapfer 19625bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 1971da177e4SLinus Torvalds { 1981da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1991da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 2002e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 2012e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 2021da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 203c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 2041da177e4SLinus Torvalds 20599df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 206d2f4012fSYotam Medini left = packet[2] & 0x10; 207d2f4012fSYotam Medini right = packet[2] & 0x08; 2081da177e4SLinus Torvalds middle = 0; 2091da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 2101da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 2111da177e4SLinus Torvalds z = packet[5]; 2121da177e4SLinus Torvalds } else { 2131da177e4SLinus Torvalds left = packet[3] & 1; 2141da177e4SLinus Torvalds right = packet[3] & 2; 2151da177e4SLinus Torvalds middle = packet[3] & 4; 2161da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2171da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2181da177e4SLinus Torvalds z = packet[5]; 2191da177e4SLinus Torvalds } 2201da177e4SLinus Torvalds 22199df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2223c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2233c00bb96SLaszlo Kajan forward = packet[2] & 4; 224c30b4c10SIvan Casado Ruiz } 225c30b4c10SIvan Casado Ruiz 22699df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 227c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 228c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 229c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 230c30b4c10SIvan Casado Ruiz forward = back = 0; 231c30b4c10SIvan Casado Ruiz } 232c30b4c10SIvan Casado Ruiz 2331da177e4SLinus Torvalds ges = packet[2] & 1; 2341da177e4SLinus Torvalds fin = packet[2] & 2; 2351da177e4SLinus Torvalds 23699df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2371da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2381da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 239d7ed5d88SUlrich Dangel 24004aae283SPali Rohár alps_report_buttons(dev2, dev, left, right, middle); 241d7ed5d88SUlrich Dangel 2421da177e4SLinus Torvalds input_sync(dev2); 2431da177e4SLinus Torvalds return; 2441da177e4SLinus Torvalds } 2451da177e4SLinus Torvalds 24692bac83dSHans de Goede /* Non interleaved V2 dualpoint has separate stick button bits */ 24792bac83dSHans de Goede if (priv->proto_version == ALPS_PROTO_V2 && 24892bac83dSHans de Goede priv->flags == (ALPS_PASS | ALPS_DUALPOINT)) { 24992bac83dSHans de Goede left |= packet[0] & 1; 25092bac83dSHans de Goede right |= packet[0] & 2; 25192bac83dSHans de Goede middle |= packet[0] & 4; 25292bac83dSHans de Goede } 25392bac83dSHans de Goede 25404aae283SPali Rohár alps_report_buttons(dev, dev2, left, right, middle); 255d7ed5d88SUlrich Dangel 2561da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 25771bb21b6SMaxim Levitsky if (ges && !fin) 25871bb21b6SMaxim Levitsky z = 40; 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds /* 2611da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 2621da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 2631da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 2641da177e4SLinus Torvalds */ 2651da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 2661da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2671da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2681da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 2691da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 2701da177e4SLinus Torvalds input_sync(dev); 2711da177e4SLinus Torvalds } 2721da177e4SLinus Torvalds priv->prev_fin = fin; 2731da177e4SLinus Torvalds 27471bb21b6SMaxim Levitsky if (z > 30) 27571bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 27671bb21b6SMaxim Levitsky if (z < 25) 27771bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds if (z > 0) { 2801da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2811da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2821da177e4SLinus Torvalds } 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 2851da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 2861da177e4SLinus Torvalds 28799df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) 288e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 2891da177e4SLinus Torvalds 29099df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 291c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 292c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds 29599df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 29671bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 29771bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 29871bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 29971bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 30071bb21b6SMaxim Levitsky } 30171bb21b6SMaxim Levitsky 3021da177e4SLinus Torvalds input_sync(dev); 3031da177e4SLinus Torvalds } 3041da177e4SLinus Torvalds 30501ce661fSSeth Forshee /* 306ee65d4b3SYunkang Tang * Process bitmap data for V5 protocols. Return value is null. 307ee65d4b3SYunkang Tang * 308ee65d4b3SYunkang Tang * The bitmaps don't have enough data to track fingers, so this function 309ee65d4b3SYunkang Tang * only generates points representing a bounding box of at most two contacts. 31002d04254SHans de Goede * These two points are returned in fields->mt. 311ee65d4b3SYunkang Tang */ 312ee65d4b3SYunkang Tang static void alps_process_bitmap_dolphin(struct alps_data *priv, 31302d04254SHans de Goede struct alps_fields *fields) 314ee65d4b3SYunkang Tang { 315ee65d4b3SYunkang Tang int box_middle_x, box_middle_y; 316ee65d4b3SYunkang Tang unsigned int x_map, y_map; 317ee65d4b3SYunkang Tang unsigned char start_bit, end_bit; 318ee65d4b3SYunkang Tang unsigned char x_msb, x_lsb, y_msb, y_lsb; 319ee65d4b3SYunkang Tang 320ee65d4b3SYunkang Tang x_map = fields->x_map; 321ee65d4b3SYunkang Tang y_map = fields->y_map; 322ee65d4b3SYunkang Tang 323ee65d4b3SYunkang Tang if (!x_map || !y_map) 324ee65d4b3SYunkang Tang return; 325ee65d4b3SYunkang Tang 326ee65d4b3SYunkang Tang /* Get Most-significant and Least-significant bit */ 327ee65d4b3SYunkang Tang x_msb = fls(x_map); 328ee65d4b3SYunkang Tang x_lsb = ffs(x_map); 329ee65d4b3SYunkang Tang y_msb = fls(y_map); 330ee65d4b3SYunkang Tang y_lsb = ffs(y_map); 331ee65d4b3SYunkang Tang 332ee65d4b3SYunkang Tang /* Most-significant bit should never exceed max sensor line number */ 333ee65d4b3SYunkang Tang if (x_msb > priv->x_bits || y_msb > priv->y_bits) 334ee65d4b3SYunkang Tang return; 335ee65d4b3SYunkang Tang 336ee65d4b3SYunkang Tang if (fields->fingers > 1) { 337ee65d4b3SYunkang Tang start_bit = priv->x_bits - x_msb; 338ee65d4b3SYunkang Tang end_bit = priv->x_bits - x_lsb; 339ee65d4b3SYunkang Tang box_middle_x = (priv->x_max * (start_bit + end_bit)) / 340ee65d4b3SYunkang Tang (2 * (priv->x_bits - 1)); 341ee65d4b3SYunkang Tang 342ee65d4b3SYunkang Tang start_bit = y_lsb - 1; 343ee65d4b3SYunkang Tang end_bit = y_msb - 1; 344ee65d4b3SYunkang Tang box_middle_y = (priv->y_max * (start_bit + end_bit)) / 345ee65d4b3SYunkang Tang (2 * (priv->y_bits - 1)); 34602d04254SHans de Goede fields->mt[0] = fields->st; 34702d04254SHans de Goede fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x; 34802d04254SHans de Goede fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y; 349ee65d4b3SYunkang Tang } 350ee65d4b3SYunkang Tang } 351ee65d4b3SYunkang Tang 352036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 353036e6c7bSHans de Goede struct alps_bitmap_point *low, 354036e6c7bSHans de Goede struct alps_bitmap_point *high, 355036e6c7bSHans de Goede int *fingers) 356036e6c7bSHans de Goede { 357036e6c7bSHans de Goede struct alps_bitmap_point *point; 358036e6c7bSHans de Goede int i, bit, prev_bit = 0; 359036e6c7bSHans de Goede 360036e6c7bSHans de Goede point = low; 361036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 362036e6c7bSHans de Goede bit = map & 1; 363036e6c7bSHans de Goede if (bit) { 364036e6c7bSHans de Goede if (!prev_bit) { 365036e6c7bSHans de Goede point->start_bit = i; 366105affbfSHans de Goede point->num_bits = 0; 367036e6c7bSHans de Goede (*fingers)++; 368036e6c7bSHans de Goede } 369036e6c7bSHans de Goede point->num_bits++; 370036e6c7bSHans de Goede } else { 371036e6c7bSHans de Goede if (prev_bit) 372036e6c7bSHans de Goede point = high; 373036e6c7bSHans de Goede } 374036e6c7bSHans de Goede prev_bit = bit; 375036e6c7bSHans de Goede } 376036e6c7bSHans de Goede } 377036e6c7bSHans de Goede 378ee65d4b3SYunkang Tang /* 37901ce661fSSeth Forshee * Process bitmap data from v3 and v4 protocols. Returns the number of 38001ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 38101ce661fSSeth Forshee * bitmaps was empty. 38201ce661fSSeth Forshee * 38301ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 38401ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 38502d04254SHans de Goede * These points are returned in fields->mt when the return value 38601ce661fSSeth Forshee * is greater than 0. 38701ce661fSSeth Forshee */ 3887a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 38902d04254SHans de Goede struct alps_fields *fields) 39001ce661fSSeth Forshee { 391036e6c7bSHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers; 39201ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 39301ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 39401ce661fSSeth Forshee 39502d04254SHans de Goede if (!fields->x_map || !fields->y_map) 39601ce661fSSeth Forshee return 0; 39701ce661fSSeth Forshee 39802d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 39902d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 40001ce661fSSeth Forshee 40101ce661fSSeth Forshee /* 40201ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 40301ce661fSSeth Forshee * on either axis as the finger count. 40401ce661fSSeth Forshee */ 40501ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 40601ce661fSSeth Forshee 40701ce661fSSeth Forshee /* 40820bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 40920bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 41001ce661fSSeth Forshee */ 41101ce661fSSeth Forshee if (fingers_x == 1) { 41228835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 41301ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 41401ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 41501ce661fSSeth Forshee x_high.num_bits = max(i, 1); 41620bea68bSHans de Goede } 41720bea68bSHans de Goede if (fingers_y == 1) { 41828835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 41901ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 42001ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 42101ce661fSSeth Forshee y_high.num_bits = max(i, 1); 42201ce661fSSeth Forshee } 42301ce661fSSeth Forshee 42402d04254SHans de Goede fields->mt[0].x = 42502d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4267a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 42702d04254SHans de Goede fields->mt[0].y = 42802d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4297a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 43001ce661fSSeth Forshee 43102d04254SHans de Goede fields->mt[1].x = 43202d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4337a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 43402d04254SHans de Goede fields->mt[1].y = 43502d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4367a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 43701ce661fSSeth Forshee 43840e8f53bSHans de Goede /* y-bitmap order is reversed, except on rushmore */ 439fb2dd7a6SDmitry Torokhov if (priv->proto_version != ALPS_PROTO_V3_RUSHMORE) { 44002d04254SHans de Goede fields->mt[0].y = priv->y_max - fields->mt[0].y; 44102d04254SHans de Goede fields->mt[1].y = priv->y_max - fields->mt[1].y; 44240e8f53bSHans de Goede } 44340e8f53bSHans de Goede 44401ce661fSSeth Forshee return fingers; 44501ce661fSSeth Forshee } 44601ce661fSSeth Forshee 447cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 44801ce661fSSeth Forshee { 44901ce661fSSeth Forshee input_mt_slot(dev, slot); 450cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 45101ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 45201ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 45301ce661fSSeth Forshee } 45401ce661fSSeth Forshee 455cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 45601ce661fSSeth Forshee { 45702d04254SHans de Goede struct alps_data *priv = psmouse->private; 45802d04254SHans de Goede struct input_dev *dev = psmouse->dev; 45902d04254SHans de Goede struct alps_fields *f = &priv->f; 460cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 46102d04254SHans de Goede 462448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 463cdf333efSHans de Goede for (i = 0; i < n; i++) 464cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 465cdf333efSHans de Goede 466cdf333efSHans de Goede input_mt_sync_frame(dev); 46701ce661fSSeth Forshee } 46801ce661fSSeth Forshee 46968c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 47068c21870SHans de Goede { 47168c21870SHans de Goede struct alps_data *priv = psmouse->private; 47268c21870SHans de Goede struct input_dev *dev = psmouse->dev; 47368c21870SHans de Goede struct alps_fields *f = &priv->f; 47468c21870SHans de Goede 47568c21870SHans de Goede /* Use st data when we don't have mt data */ 47668c21870SHans de Goede if (fingers < 2) { 47768c21870SHans de Goede f->mt[0].x = f->st.x; 47868c21870SHans de Goede f->mt[0].y = f->st.y; 47968c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 48068c21870SHans de Goede } 48168c21870SHans de Goede 48299d9996cSHans de Goede alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2); 48368c21870SHans de Goede 48468c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 48568c21870SHans de Goede 48668c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 48768c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 48868c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 48968c21870SHans de Goede 49068c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 49168c21870SHans de Goede 49268c21870SHans de Goede input_sync(dev); 49368c21870SHans de Goede } 49468c21870SHans de Goede 49525bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 49625bded7cSSeth Forshee { 49725bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 49825bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 49925bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 50025bded7cSSeth Forshee int x, y, z, left, right, middle; 50125bded7cSSeth Forshee 50234412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 50334412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 50434412ba2SPali Rohár psmouse_warn(psmouse, 50534412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 50634412ba2SPali Rohár return; 50734412ba2SPali Rohár } 50834412ba2SPali Rohár 50925bded7cSSeth Forshee /* Sanity check packet */ 51025bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 51125bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 51225bded7cSSeth Forshee return; 51325bded7cSSeth Forshee } 51425bded7cSSeth Forshee 51525bded7cSSeth Forshee /* 51625bded7cSSeth Forshee * There's a special packet that seems to indicate the end 51725bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 51825bded7cSSeth Forshee */ 51925bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 52025bded7cSSeth Forshee return; 52125bded7cSSeth Forshee 52225bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 52325bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 52425bded7cSSeth Forshee z = (packet[4] & 0x7c) >> 2; 52525bded7cSSeth Forshee 52625bded7cSSeth Forshee /* 52725bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 52825bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 52925bded7cSSeth Forshee * to compensate. 53025bded7cSSeth Forshee */ 53125bded7cSSeth Forshee x /= 8; 53225bded7cSSeth Forshee y /= 8; 53325bded7cSSeth Forshee 53425bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 53525bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 53625bded7cSSeth Forshee 53725bded7cSSeth Forshee /* 53825bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 53925bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 54025bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 54125bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 54225bded7cSSeth Forshee * packet. 54325bded7cSSeth Forshee */ 54425bded7cSSeth Forshee left = packet[3] & 0x01; 54525bded7cSSeth Forshee right = packet[3] & 0x02; 54625bded7cSSeth Forshee middle = packet[3] & 0x04; 54725bded7cSSeth Forshee 54825bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 54925bded7cSSeth Forshee (left || right || middle)) 55025bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 55125bded7cSSeth Forshee 55225bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 55325bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 55425bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 55525bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 55625bded7cSSeth Forshee } 55725bded7cSSeth Forshee 55825bded7cSSeth Forshee input_sync(dev); 55925bded7cSSeth Forshee return; 56025bded7cSSeth Forshee } 56125bded7cSSeth Forshee 562f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 563f85e5001SKevin Cernekee { 564f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 565f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 566f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 567f85e5001SKevin Cernekee 568f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 569f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 570f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 571f85e5001SKevin Cernekee } 572f85e5001SKevin Cernekee 57338c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 574ee65d4b3SYunkang Tang struct psmouse *psmouse) 575f85e5001SKevin Cernekee { 576f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 577f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 578f85e5001SKevin Cernekee 579f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 580f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 581f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 582f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 583f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 584f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 585f85e5001SKevin Cernekee (p[4] & 0x01); 586f85e5001SKevin Cernekee 58702d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 588f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 58902d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 59002d04254SHans de Goede f->pressure = p[5] & 0x7f; 591f85e5001SKevin Cernekee 592f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 59338c11eaaSHans de Goede 59438c11eaaSHans de Goede return 0; 595f85e5001SKevin Cernekee } 596f85e5001SKevin Cernekee 59738c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 598ee65d4b3SYunkang Tang struct psmouse *psmouse) 5991302bac3SKevin Cernekee { 600ee65d4b3SYunkang Tang alps_decode_pinnacle(f, p, psmouse); 6011302bac3SKevin Cernekee 602f105e34aSYunkang Tang /* Rushmore's packet decode has a bit difference with Pinnacle's */ 603f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 604f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 6051302bac3SKevin Cernekee f->x_map |= (p[5] & 0x10) << 11; 6061302bac3SKevin Cernekee f->y_map |= (p[5] & 0x20) << 6; 60738c11eaaSHans de Goede 60838c11eaaSHans de Goede return 0; 6091302bac3SKevin Cernekee } 6101302bac3SKevin Cernekee 61138c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 612ee65d4b3SYunkang Tang struct psmouse *psmouse) 61375af9e56SDave Turvene { 614ee65d4b3SYunkang Tang u64 palm_data = 0; 615ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 616ee65d4b3SYunkang Tang 61775af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 61875af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 61975af9e56SDave Turvene 620ee65d4b3SYunkang Tang if (!f->is_mp) { 62102d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 62202d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 62302d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 62475af9e56SDave Turvene alps_decode_buttons_v3(f, p); 625ee65d4b3SYunkang Tang } else { 626ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 627ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 628ee65d4b3SYunkang Tang 629ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 630ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 631ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 632ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 633ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 634ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 635ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 636ee65d4b3SYunkang Tang 637ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 638ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 639ee65d4b3SYunkang Tang 640ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 641ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 642ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 643ee65d4b3SYunkang Tang } 64438c11eaaSHans de Goede 64538c11eaaSHans de Goede return 0; 64675af9e56SDave Turvene } 64775af9e56SDave Turvene 648ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 64925bded7cSSeth Forshee { 65025bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 65125bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 65225bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 65302d04254SHans de Goede struct alps_fields *f = &priv->f; 65402d04254SHans de Goede int fingers = 0; 655f85e5001SKevin Cernekee 65602d04254SHans de Goede memset(f, 0, sizeof(*f)); 65702d04254SHans de Goede 65802d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 65925bded7cSSeth Forshee 66025bded7cSSeth Forshee /* 66101ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 66201ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 66301ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 66401ce661fSSeth Forshee * bit 6 of packet[4] set. 66525bded7cSSeth Forshee */ 66625bded7cSSeth Forshee if (priv->multi_packet) { 66725bded7cSSeth Forshee /* 66825bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 66925bded7cSSeth Forshee * sequence, but then what follows is another position 67025bded7cSSeth Forshee * packet. Check for this, and when it happens process the 67125bded7cSSeth Forshee * position packet as usual. 67225bded7cSSeth Forshee */ 67302d04254SHans de Goede if (f->is_mp) { 67402d04254SHans de Goede fingers = f->fingers; 675fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3 || 676fb2dd7a6SDmitry Torokhov priv->proto_version == ALPS_PROTO_V3_RUSHMORE) { 67702d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 67820bea68bSHans de Goede fingers = 0; /* Use st data */ 67901ce661fSSeth Forshee 68001ce661fSSeth Forshee /* Now process position packet */ 68102d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 682ee65d4b3SYunkang Tang psmouse); 683ee65d4b3SYunkang Tang } else { 684ee65d4b3SYunkang Tang /* 685ee65d4b3SYunkang Tang * Because Dolphin uses position packet's 686ee65d4b3SYunkang Tang * coordinate data as Pt1 and uses it to 687ee65d4b3SYunkang Tang * calculate Pt2, so we need to do position 688ee65d4b3SYunkang Tang * packet decode first. 689ee65d4b3SYunkang Tang */ 69002d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 691ee65d4b3SYunkang Tang psmouse); 692ee65d4b3SYunkang Tang 693ee65d4b3SYunkang Tang /* 694ee65d4b3SYunkang Tang * Since Dolphin's finger number is reliable, 695ee65d4b3SYunkang Tang * there is no need to compare with bmap_fn. 696ee65d4b3SYunkang Tang */ 69702d04254SHans de Goede alps_process_bitmap_dolphin(priv, f); 698ee65d4b3SYunkang Tang } 69901ce661fSSeth Forshee } else { 70001ce661fSSeth Forshee priv->multi_packet = 0; 70125bded7cSSeth Forshee } 70225bded7cSSeth Forshee } 70325bded7cSSeth Forshee 70401ce661fSSeth Forshee /* 70501ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 70601ce661fSSeth Forshee * times it seems to be set is in situations where the data is 70701ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 70801ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 70901ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 71001ce661fSSeth Forshee * bit set. 71101ce661fSSeth Forshee */ 71202d04254SHans de Goede if (f->is_mp) 71301ce661fSSeth Forshee return; 71401ce661fSSeth Forshee 71502d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 71625bded7cSSeth Forshee priv->multi_packet = 1; 71701ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 71801ce661fSSeth Forshee return; 71901ce661fSSeth Forshee } 72001ce661fSSeth Forshee 72125bded7cSSeth Forshee priv->multi_packet = 0; 72225bded7cSSeth Forshee 72325bded7cSSeth Forshee /* 72425bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 72525bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 72625bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 72725bded7cSSeth Forshee * Ignore them. 72825bded7cSSeth Forshee */ 72902d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 73025bded7cSSeth Forshee return; 73125bded7cSSeth Forshee 73268c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 73325bded7cSSeth Forshee 73434412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 73534412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 73602d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 73702d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 73802d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 73925bded7cSSeth Forshee input_sync(dev2); 74025bded7cSSeth Forshee } 74125bded7cSSeth Forshee } 74225bded7cSSeth Forshee 74325bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 74425bded7cSSeth Forshee { 74525bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 74625bded7cSSeth Forshee 74725bded7cSSeth Forshee /* 74825bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 74925bded7cSSeth Forshee * touchpad data and one representing trackstick data. 75025bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 75125bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 75225bded7cSSeth Forshee * observed in the last byte of either of the other types 75325bded7cSSeth Forshee * of packets. 75425bded7cSSeth Forshee */ 75525bded7cSSeth Forshee if (packet[5] == 0x3f) { 75625bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 75725bded7cSSeth Forshee return; 75825bded7cSSeth Forshee } 75925bded7cSSeth Forshee 760ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 76125bded7cSSeth Forshee } 76225bded7cSSeth Forshee 76395f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 76495f75e91SYunkang Tang { 76595f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 76695f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 76795f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 76895f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 76995f75e91SYunkang Tang int x, y, z, left, right, middle; 77095f75e91SYunkang Tang 77195f75e91SYunkang Tang /* 77295f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 77395f75e91SYunkang Tang * or Trackpoint. 77495f75e91SYunkang Tang * Touchpad: 0 - 0x7E 77595f75e91SYunkang Tang * Trackpoint: 0x7F 77695f75e91SYunkang Tang */ 77795f75e91SYunkang Tang if (packet[5] == 0x7F) { 77895f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 77934412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 78034412ba2SPali Rohár psmouse_warn(psmouse, 78134412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 78295f75e91SYunkang Tang return; 78334412ba2SPali Rohár } 78495f75e91SYunkang Tang 78595f75e91SYunkang Tang /* Trackpoint packet */ 78695f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 78795f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 78895f75e91SYunkang Tang z = packet[4]; 78995f75e91SYunkang Tang left = packet[3] & 0x01; 79095f75e91SYunkang Tang right = packet[3] & 0x02; 79195f75e91SYunkang Tang middle = packet[3] & 0x04; 79295f75e91SYunkang Tang 79395f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 79495f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 79595f75e91SYunkang Tang x = y = z = 0; 79695f75e91SYunkang Tang 79795f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 79895f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 79995f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 80095f75e91SYunkang Tang 80195f75e91SYunkang Tang input_report_key(dev2, BTN_LEFT, left); 80295f75e91SYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 80395f75e91SYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 80495f75e91SYunkang Tang 80595f75e91SYunkang Tang input_sync(dev2); 80695f75e91SYunkang Tang return; 80795f75e91SYunkang Tang } 80895f75e91SYunkang Tang 80995f75e91SYunkang Tang /* Touchpad packet */ 81095f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 81195f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 81295f75e91SYunkang Tang z = packet[5]; 81395f75e91SYunkang Tang left = packet[3] & 0x01; 81495f75e91SYunkang Tang right = packet[3] & 0x02; 81595f75e91SYunkang Tang 81695f75e91SYunkang Tang if (z > 30) 81795f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 81895f75e91SYunkang Tang if (z < 25) 81995f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 82095f75e91SYunkang Tang 82195f75e91SYunkang Tang if (z > 0) { 82295f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 82395f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 82495f75e91SYunkang Tang } 82595f75e91SYunkang Tang 82695f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 82795f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 82895f75e91SYunkang Tang 82995f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 83095f75e91SYunkang Tang input_report_key(dev, BTN_LEFT, left); 83195f75e91SYunkang Tang input_report_key(dev, BTN_RIGHT, right); 83295f75e91SYunkang Tang 83395f75e91SYunkang Tang input_sync(dev); 83495f75e91SYunkang Tang } 83595f75e91SYunkang Tang 83625bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 83725bded7cSSeth Forshee { 8383b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 83925bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 84002d04254SHans de Goede struct alps_fields *f = &priv->f; 84168c21870SHans de Goede int offset; 8423b7e09faSGeorge Pantalos 8433b7e09faSGeorge Pantalos /* 8443b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8453b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8463b7e09faSGeorge Pantalos * track our position in the bitmap packet. 8473b7e09faSGeorge Pantalos */ 8483b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 8493b7e09faSGeorge Pantalos /* sync, reset position */ 8503b7e09faSGeorge Pantalos priv->multi_packet = 0; 8513b7e09faSGeorge Pantalos } 8523b7e09faSGeorge Pantalos 8533b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 8543b7e09faSGeorge Pantalos return; 8553b7e09faSGeorge Pantalos 8563b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 8573b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 8583b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 8593b7e09faSGeorge Pantalos 8603b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 8613b7e09faSGeorge Pantalos priv->multi_packet = 0; 8623b7e09faSGeorge Pantalos 86302d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 8643b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 8653b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 8663b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 86702d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 8683b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 8693b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 8703b7e09faSGeorge Pantalos 87102d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 8723b7e09faSGeorge Pantalos } 87325bded7cSSeth Forshee 874b0cfb794SAndreas Bosch f->left = !!(packet[4] & 0x01); 875b0cfb794SAndreas Bosch f->right = !!(packet[4] & 0x02); 87625bded7cSSeth Forshee 87702d04254SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 87825bded7cSSeth Forshee ((packet[0] & 0x30) >> 4); 87902d04254SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 88002d04254SHans de Goede f->pressure = packet[5] & 0x7f; 88125bded7cSSeth Forshee 88268c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 88325bded7cSSeth Forshee } 88425bded7cSSeth Forshee 8853808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 8863808843cSYunkang Tang { 8873808843cSYunkang Tang switch (psmouse->pktcnt) { 8883808843cSYunkang Tang case 3: 8893808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 8903808843cSYunkang Tang case 4: 8913808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 8923808843cSYunkang Tang case 6: 8933808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 8943808843cSYunkang Tang } 8953808843cSYunkang Tang return true; 8963808843cSYunkang Tang } 8973808843cSYunkang Tang 8983808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 8993808843cSYunkang Tang { 9003808843cSYunkang Tang unsigned char packet_id; 9013808843cSYunkang Tang 9023808843cSYunkang Tang if (byte[4] & 0x40) 9033808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 9043808843cSYunkang Tang else if (byte[4] & 0x01) 9053808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 9063808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 9073808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 9083808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 9093808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 9103808843cSYunkang Tang else 9113808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 9123808843cSYunkang Tang 9133808843cSYunkang Tang return packet_id; 9143808843cSYunkang Tang } 9153808843cSYunkang Tang 9163808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 9173808843cSYunkang Tang unsigned char *pkt, 9183808843cSYunkang Tang unsigned char pkt_id) 9193808843cSYunkang Tang { 9203808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9213808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9223808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9233808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9243808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9253808843cSYunkang Tang 9263808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9273808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9283808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9293808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9303808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9313808843cSYunkang Tang 9323808843cSYunkang Tang switch (pkt_id) { 9333808843cSYunkang Tang case V7_PACKET_ID_TWO: 9343808843cSYunkang Tang mt[1].x &= ~0x000F; 9353808843cSYunkang Tang mt[1].y |= 0x000F; 9363808843cSYunkang Tang break; 9373808843cSYunkang Tang 9383808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9393808843cSYunkang Tang mt[1].x &= ~0x003F; 9403808843cSYunkang Tang mt[1].y &= ~0x0020; 9413808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 9423808843cSYunkang Tang mt[1].y |= 0x001F; 9433808843cSYunkang Tang break; 9443808843cSYunkang Tang 9453808843cSYunkang Tang case V7_PACKET_ID_NEW: 9463808843cSYunkang Tang mt[1].x &= ~0x003F; 9473808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 9483808843cSYunkang Tang mt[1].y |= 0x000F; 9493808843cSYunkang Tang break; 9503808843cSYunkang Tang } 9513808843cSYunkang Tang 9523808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 9533808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 9543808843cSYunkang Tang } 9553808843cSYunkang Tang 9563808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 9573808843cSYunkang Tang { 9587091c443SHans de Goede int i, fingers = 0; 9593808843cSYunkang Tang 9607091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 9617091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 9627091c443SHans de Goede fingers++; 9637091c443SHans de Goede } 9643808843cSYunkang Tang 9657091c443SHans de Goede return fingers; 9663808843cSYunkang Tang } 9673808843cSYunkang Tang 9683808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 9693808843cSYunkang Tang unsigned char *p, 9703808843cSYunkang Tang struct psmouse *psmouse) 9713808843cSYunkang Tang { 972d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 9733808843cSYunkang Tang unsigned char pkt_id; 9743808843cSYunkang Tang 9753808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 9763808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 9773808843cSYunkang Tang return 0; 9783808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 9793808843cSYunkang Tang return -1; 9808b238115SHans de Goede /* 9818b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 9828b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 9838b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 9848b238115SHans de Goede * us. 9858b238115SHans de Goede * 9868b238115SHans de Goede * NEW packets have 3 problems: 9878b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 9888b238115SHans de Goede * this can be worked around by preserving the old button state 9898b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 9908b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 9918b238115SHans de Goede * the old finger count as that may mismatch with the amount of 9928b238115SHans de Goede * touch coordinates we've available in the NEW packet 9938b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 9948b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 9958b238115SHans de Goede * non NEW packet comes in 9968b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 9978b238115SHans de Goede */ 9988b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 9998b238115SHans de Goede return 1; 10003808843cSYunkang Tang 10013808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 10023808843cSYunkang Tang 10033808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 10043808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 10058b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 10063808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 10073808843cSYunkang Tang 1008d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1009d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1010d27eb793SHans de Goede if (p[0] & 0x20) 1011d27eb793SHans de Goede f->fingers++; 1012d27eb793SHans de Goede if (p[0] & 0x10) 1013d27eb793SHans de Goede f->fingers++; 1014d27eb793SHans de Goede } else { 1015d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1016d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1017d27eb793SHans de Goede } 1018d27eb793SHans de Goede 10197091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10207091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10217091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10227091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10237091c443SHans de Goede f->mt[1].x = 0; 10247091c443SHans de Goede f->mt[1].y = 0; 10257091c443SHans de Goede } 10267091c443SHans de Goede 10273808843cSYunkang Tang return 0; 10283808843cSYunkang Tang } 10293808843cSYunkang Tang 10303808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10313808843cSYunkang Tang { 10323808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10333808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10343808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10353808843cSYunkang Tang int x, y, z, left, right, middle; 10363808843cSYunkang Tang 103734412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 103834412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 103934412ba2SPali Rohár psmouse_warn(psmouse, 104034412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 104134412ba2SPali Rohár return; 104234412ba2SPali Rohár } 104334412ba2SPali Rohár 10443808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 10453808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 10463808843cSYunkang Tang ((packet[3] & 0x20) << 1); 10473808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 10483808843cSYunkang Tang 10493808843cSYunkang Tang left = (packet[1] & 0x01); 10503808843cSYunkang Tang right = (packet[1] & 0x02) >> 1; 10513808843cSYunkang Tang middle = (packet[1] & 0x04) >> 2; 10523808843cSYunkang Tang 10533808843cSYunkang Tang /* Divide 2 since trackpoint's speed is too fast */ 10543808843cSYunkang Tang input_report_rel(dev2, REL_X, (char)x / 2); 10553808843cSYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 2)); 10563808843cSYunkang Tang 10573808843cSYunkang Tang input_report_key(dev2, BTN_LEFT, left); 10583808843cSYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 10593808843cSYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 10603808843cSYunkang Tang 10613808843cSYunkang Tang input_sync(dev2); 10623808843cSYunkang Tang } 10633808843cSYunkang Tang 10643808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 10653808843cSYunkang Tang { 10663808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10673808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 10683808843cSYunkang Tang struct alps_fields *f = &priv->f; 10693808843cSYunkang Tang 10703808843cSYunkang Tang memset(f, 0, sizeof(*f)); 10713808843cSYunkang Tang 10723808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 10733808843cSYunkang Tang return; 10743808843cSYunkang Tang 10753808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 10763808843cSYunkang Tang 10773808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 10783808843cSYunkang Tang 10793808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 10803808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 10813808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 10823808843cSYunkang Tang 10833808843cSYunkang Tang input_sync(dev); 10843808843cSYunkang Tang } 10853808843cSYunkang Tang 10863808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 10873808843cSYunkang Tang { 10883808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10893808843cSYunkang Tang 10903808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 10913808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 10923808843cSYunkang Tang else 10933808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 10943808843cSYunkang Tang } 10953808843cSYunkang Tang 109604aae283SPali Rohár static DEFINE_MUTEX(alps_mutex); 109704aae283SPali Rohár 109804aae283SPali Rohár static void alps_register_bare_ps2_mouse(struct work_struct *work) 109904aae283SPali Rohár { 110004aae283SPali Rohár struct alps_data *priv = 110104aae283SPali Rohár container_of(work, struct alps_data, dev3_register_work.work); 110204aae283SPali Rohár struct psmouse *psmouse = priv->psmouse; 110304aae283SPali Rohár struct input_dev *dev3; 110404aae283SPali Rohár int error = 0; 110504aae283SPali Rohár 110604aae283SPali Rohár mutex_lock(&alps_mutex); 110704aae283SPali Rohár 110804aae283SPali Rohár if (priv->dev3) 110904aae283SPali Rohár goto out; 111004aae283SPali Rohár 111104aae283SPali Rohár dev3 = input_allocate_device(); 111204aae283SPali Rohár if (!dev3) { 111304aae283SPali Rohár psmouse_err(psmouse, "failed to allocate secondary device\n"); 111404aae283SPali Rohár error = -ENOMEM; 111504aae283SPali Rohár goto out; 111604aae283SPali Rohár } 111704aae283SPali Rohár 111804aae283SPali Rohár snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s", 111904aae283SPali Rohár psmouse->ps2dev.serio->phys, 112004aae283SPali Rohár (priv->dev2 ? "input2" : "input1")); 112104aae283SPali Rohár dev3->phys = priv->phys3; 112204aae283SPali Rohár 112304aae283SPali Rohár /* 112404aae283SPali Rohár * format of input device name is: "protocol vendor name" 112504aae283SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 112604aae283SPali Rohár */ 112704aae283SPali Rohár dev3->name = "PS/2 ALPS Mouse"; 112804aae283SPali Rohár 112904aae283SPali Rohár dev3->id.bustype = BUS_I8042; 113004aae283SPali Rohár dev3->id.vendor = 0x0002; 113104aae283SPali Rohár dev3->id.product = PSMOUSE_PS2; 113204aae283SPali Rohár dev3->id.version = 0x0000; 113304aae283SPali Rohár dev3->dev.parent = &psmouse->ps2dev.serio->dev; 113404aae283SPali Rohár 113504aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_X); 113604aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_Y); 113704aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_LEFT); 113804aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_RIGHT); 113904aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_MIDDLE); 114004aae283SPali Rohár 114104aae283SPali Rohár __set_bit(INPUT_PROP_POINTER, dev3->propbit); 114204aae283SPali Rohár 114304aae283SPali Rohár error = input_register_device(dev3); 114404aae283SPali Rohár if (error) { 114504aae283SPali Rohár psmouse_err(psmouse, 114604aae283SPali Rohár "failed to register secondary device: %d\n", 114704aae283SPali Rohár error); 114804aae283SPali Rohár input_free_device(dev3); 114904aae283SPali Rohár goto out; 115004aae283SPali Rohár } 115104aae283SPali Rohár 115204aae283SPali Rohár priv->dev3 = dev3; 115304aae283SPali Rohár 115404aae283SPali Rohár out: 115504aae283SPali Rohár /* 115604aae283SPali Rohár * Save the error code so that we can detect that we 115704aae283SPali Rohár * already tried to create the device. 115804aae283SPali Rohár */ 115904aae283SPali Rohár if (error) 116004aae283SPali Rohár priv->dev3 = ERR_PTR(error); 116104aae283SPali Rohár 116204aae283SPali Rohár mutex_unlock(&alps_mutex); 116304aae283SPali Rohár } 116404aae283SPali Rohár 116559c30afbSHans de Goede static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 11661d9f2626SSebastian Kapfer unsigned char packet[], 11671d9f2626SSebastian Kapfer bool report_buttons) 11681d9f2626SSebastian Kapfer { 116959c30afbSHans de Goede struct alps_data *priv = psmouse->private; 11706bcca19fSHans de Goede struct input_dev *dev, *dev2 = NULL; 117159c30afbSHans de Goede 1172e3a79212SHans de Goede /* Figure out which device to use to report the bare packet */ 1173e3a79212SHans de Goede if (priv->proto_version == ALPS_PROTO_V2 && 1174e3a79212SHans de Goede (priv->flags & ALPS_DUALPOINT)) { 1175e3a79212SHans de Goede /* On V2 devices the DualPoint Stick reports bare packets */ 1176e3a79212SHans de Goede dev = priv->dev2; 11776bcca19fSHans de Goede dev2 = psmouse->dev; 1178e3a79212SHans de Goede } else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) { 117959c30afbSHans de Goede /* Register dev3 mouse if we received PS/2 packet first time */ 118059c30afbSHans de Goede if (!IS_ERR(priv->dev3)) 118159c30afbSHans de Goede psmouse_queue_work(psmouse, &priv->dev3_register_work, 118259c30afbSHans de Goede 0); 118359c30afbSHans de Goede return; 118459c30afbSHans de Goede } else { 118559c30afbSHans de Goede dev = priv->dev3; 118659c30afbSHans de Goede } 118759c30afbSHans de Goede 11881d9f2626SSebastian Kapfer if (report_buttons) 11896bcca19fSHans de Goede alps_report_buttons(dev, dev2, 11901d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 11911d9f2626SSebastian Kapfer 119204aae283SPali Rohár input_report_rel(dev, REL_X, 11931d9f2626SSebastian Kapfer packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 119404aae283SPali Rohár input_report_rel(dev, REL_Y, 11951d9f2626SSebastian Kapfer packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 11961d9f2626SSebastian Kapfer 119704aae283SPali Rohár input_sync(dev); 11981d9f2626SSebastian Kapfer } 11991d9f2626SSebastian Kapfer 12001d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 12011da177e4SLinus Torvalds { 12021da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 12031da177e4SLinus Torvalds 12041d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 12051d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12061d9f2626SSebastian Kapfer 12071d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 12081d9f2626SSebastian Kapfer /* 12091d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 12101d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 12111d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 12121d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 12131d9f2626SSebastian Kapfer */ 12141d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 12151d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12161d9f2626SSebastian Kapfer } 12171d9f2626SSebastian Kapfer 12181d9f2626SSebastian Kapfer del_timer(&priv->timer); 12191d9f2626SSebastian Kapfer 12201d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 12211d9f2626SSebastian Kapfer 12221d9f2626SSebastian Kapfer /* 12231d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 12241d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 12251d9f2626SSebastian Kapfer * next packet or we got garbage. 12261d9f2626SSebastian Kapfer */ 12271d9f2626SSebastian Kapfer 12281d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 12291d9f2626SSebastian Kapfer psmouse->packet[4] | 12301d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 123199df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1232b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12333b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 12343b112923SAndy Shevchenko psmouse->packet + 3); 12351d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 12361d9f2626SSebastian Kapfer } 12371d9f2626SSebastian Kapfer 123824af5cb9SKevin Cernekee priv->process_packet(psmouse); 12391d9f2626SSebastian Kapfer 12401d9f2626SSebastian Kapfer /* Continue with the next packet */ 12411d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 12421d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 12431d9f2626SSebastian Kapfer 12441d9f2626SSebastian Kapfer } else { 12451d9f2626SSebastian Kapfer 12461d9f2626SSebastian Kapfer /* 12471d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 12481d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 12491d9f2626SSebastian Kapfer * 12501d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 12511d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 12521d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1253b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 12541d9f2626SSebastian Kapfer * normal operation (user would need to press all 12551d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 12561d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 12571d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 12581d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1259b5d21704SDmitry Torokhov * de-synchronization. 12601d9f2626SSebastian Kapfer */ 12611d9f2626SSebastian Kapfer 126259c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 126359c30afbSHans de Goede false); 12641d9f2626SSebastian Kapfer 12651d9f2626SSebastian Kapfer /* 12661d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 12671d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 12681d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 12691d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 12701d9f2626SSebastian Kapfer * is normally 1. 12711d9f2626SSebastian Kapfer */ 12721d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 12731d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 12741d9f2626SSebastian Kapfer } 12751d9f2626SSebastian Kapfer 12761d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12771d9f2626SSebastian Kapfer } 12781d9f2626SSebastian Kapfer 12791d9f2626SSebastian Kapfer static void alps_flush_packet(unsigned long data) 12801d9f2626SSebastian Kapfer { 12811d9f2626SSebastian Kapfer struct psmouse *psmouse = (struct psmouse *)data; 128224af5cb9SKevin Cernekee struct alps_data *priv = psmouse->private; 12831d9f2626SSebastian Kapfer 12841d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 12851d9f2626SSebastian Kapfer 1286b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 12871d9f2626SSebastian Kapfer 12881d9f2626SSebastian Kapfer /* 12891d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 12901d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 12911d9f2626SSebastian Kapfer * ALPS packet. 12921d9f2626SSebastian Kapfer */ 12931d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 12941d9f2626SSebastian Kapfer psmouse->packet[4] | 12951d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1296b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12973b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 12983b112923SAndy Shevchenko psmouse->packet + 3); 12991d9f2626SSebastian Kapfer } else { 130024af5cb9SKevin Cernekee priv->process_packet(psmouse); 13011d9f2626SSebastian Kapfer } 13021d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 13031d9f2626SSebastian Kapfer } 13041d9f2626SSebastian Kapfer 13051d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 13061d9f2626SSebastian Kapfer } 13071d9f2626SSebastian Kapfer 13081d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 13091d9f2626SSebastian Kapfer { 13101d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 13111d9f2626SSebastian Kapfer 13124ab8f7f3SPali Rohár /* 13134ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 13144ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 13154ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 13164ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 13174ab8f7f3SPali Rohár */ 13184ab8f7f3SPali Rohár if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) { 13191da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 132059c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, psmouse->packet, 13211d9f2626SSebastian Kapfer true); 13221da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13231da177e4SLinus Torvalds } 13241da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13251da177e4SLinus Torvalds } 13261da177e4SLinus Torvalds 13271d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 13281d9f2626SSebastian Kapfer 132999df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 13301d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 13311d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 13321d9f2626SSebastian Kapfer } 13331d9f2626SSebastian Kapfer 133499df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1335b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1336b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 133799df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 13381da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 13391d9f2626SSebastian Kapfer } 13401da177e4SLinus Torvalds 1341b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1342a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 134375af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 13441d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1345b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1346b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1347b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1348a7ef82aeSPali Rohár 1349fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && 1350a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1351a7ef82aeSPali Rohár /* 1352a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1353a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1354a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1355a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1356a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1357a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1358a7ef82aeSPali Rohár * filling the logs. 1359a7ef82aeSPali Rohár */ 1360a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1361a7ef82aeSPali Rohár } 1362a7ef82aeSPali Rohár 13631da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 13641d9f2626SSebastian Kapfer } 13651da177e4SLinus Torvalds 13663808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7 && 13673808843cSYunkang Tang !alps_is_valid_package_v7(psmouse)) { 13683808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 13693808843cSYunkang Tang psmouse->pktcnt - 1, 13703808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 13713808843cSYunkang Tang return PSMOUSE_BAD_DATA; 13723808843cSYunkang Tang } 13733808843cSYunkang Tang 1374b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 137524af5cb9SKevin Cernekee priv->process_packet(psmouse); 13761da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13771da177e4SLinus Torvalds } 13781da177e4SLinus Torvalds 13791da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 138225bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 138325bded7cSSeth Forshee { 138425bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 138525bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 138625bded7cSSeth Forshee int command; 138725bded7cSSeth Forshee unsigned char *param; 138825bded7cSSeth Forshee unsigned char dummy[4]; 138925bded7cSSeth Forshee 139025bded7cSSeth Forshee BUG_ON(nibble > 0xf); 139125bded7cSSeth Forshee 139225bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 139325bded7cSSeth Forshee param = (command & 0x0f00) ? 139425bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 139525bded7cSSeth Forshee 139625bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 139725bded7cSSeth Forshee return -1; 139825bded7cSSeth Forshee 139925bded7cSSeth Forshee return 0; 140025bded7cSSeth Forshee } 140125bded7cSSeth Forshee 140225bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 140325bded7cSSeth Forshee { 140425bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 140525bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 140625bded7cSSeth Forshee int i, nibble; 140725bded7cSSeth Forshee 140825bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 140925bded7cSSeth Forshee return -1; 141025bded7cSSeth Forshee 141125bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 141225bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 141325bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 141425bded7cSSeth Forshee return -1; 141525bded7cSSeth Forshee } 141625bded7cSSeth Forshee 141725bded7cSSeth Forshee return 0; 141825bded7cSSeth Forshee } 141925bded7cSSeth Forshee 142025bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 142125bded7cSSeth Forshee { 142225bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 142325bded7cSSeth Forshee unsigned char param[4]; 142425bded7cSSeth Forshee 142525bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 142625bded7cSSeth Forshee return -1; 142725bded7cSSeth Forshee 142825bded7cSSeth Forshee /* 142925bded7cSSeth Forshee * The address being read is returned in the first two bytes 143025bded7cSSeth Forshee * of the result. Check that this address matches the expected 143125bded7cSSeth Forshee * address. 143225bded7cSSeth Forshee */ 143325bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 143425bded7cSSeth Forshee return -1; 143525bded7cSSeth Forshee 143625bded7cSSeth Forshee return param[2]; 143725bded7cSSeth Forshee } 143825bded7cSSeth Forshee 143925bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 144025bded7cSSeth Forshee { 144125bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 144225bded7cSSeth Forshee return -1; 144325bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 144425bded7cSSeth Forshee } 144525bded7cSSeth Forshee 144625bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 144725bded7cSSeth Forshee { 144825bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 144925bded7cSSeth Forshee return -1; 145025bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 145125bded7cSSeth Forshee return -1; 145225bded7cSSeth Forshee return 0; 145325bded7cSSeth Forshee } 145425bded7cSSeth Forshee 145525bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 145625bded7cSSeth Forshee u8 value) 145725bded7cSSeth Forshee { 145825bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 145925bded7cSSeth Forshee return -1; 146025bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 146125bded7cSSeth Forshee } 146225bded7cSSeth Forshee 146324ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 146424ba9707SKevin Cernekee int repeated_command, unsigned char *param) 146524ba9707SKevin Cernekee { 146624ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 146724ba9707SKevin Cernekee 146824ba9707SKevin Cernekee param[0] = 0; 146924ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 147024ba9707SKevin Cernekee return -EIO; 147124ba9707SKevin Cernekee 147224ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 147324ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 147424ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 147524ba9707SKevin Cernekee return -EIO; 147624ba9707SKevin Cernekee 147724ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 147824ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 147924ba9707SKevin Cernekee return -EIO; 148024ba9707SKevin Cernekee 148139fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 148239fbe585SDmitry Torokhov repeated_command, param); 148324ba9707SKevin Cernekee return 0; 148424ba9707SKevin Cernekee } 148524ba9707SKevin Cernekee 14863808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 14873808843cSYunkang Tang { 14883808843cSYunkang Tang if (id[0] == 0x73) 14893808843cSYunkang Tang return true; 14903808843cSYunkang Tang 14913808843cSYunkang Tang if (id[0] == 0x88 && 14923808843cSYunkang Tang (id[1] == 0x07 || 14933808843cSYunkang Tang id[1] == 0x08 || 14943808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 14953808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 14963808843cSYunkang Tang return true; 14973808843cSYunkang Tang } 14983808843cSYunkang Tang 14993808843cSYunkang Tang return false; 15003808843cSYunkang Tang } 15013808843cSYunkang Tang 1502d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 150325bded7cSSeth Forshee { 150425bded7cSSeth Forshee unsigned char param[4]; 150525bded7cSSeth Forshee 150624ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 150725bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 150825bded7cSSeth Forshee return -1; 150925bded7cSSeth Forshee } 151025bded7cSSeth Forshee 15113808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 151225bded7cSSeth Forshee psmouse_dbg(psmouse, 151324ba9707SKevin Cernekee "unknown response while entering command mode\n"); 151425bded7cSSeth Forshee return -1; 151525bded7cSSeth Forshee } 151625bded7cSSeth Forshee return 0; 151725bded7cSSeth Forshee } 151825bded7cSSeth Forshee 151925bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 152025bded7cSSeth Forshee { 152125bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 152225bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 152325bded7cSSeth Forshee return -1; 152425bded7cSSeth Forshee return 0; 152525bded7cSSeth Forshee } 152625bded7cSSeth Forshee 15271da177e4SLinus Torvalds /* 15281da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 15291da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 15301da177e4SLinus Torvalds * I'd thought it would be other way around... 15311da177e4SLinus Torvalds */ 153225bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 15331da177e4SLinus Torvalds { 15341da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 15351da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 15381da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 15391da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 15401da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 15411da177e4SLinus Torvalds return -1; 15421da177e4SLinus Torvalds 15431da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1544c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 15451da177e4SLinus Torvalds 15461da177e4SLinus Torvalds return 0; 15471da177e4SLinus Torvalds } 15481da177e4SLinus Torvalds 154925bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 15501da177e4SLinus Torvalds { 15511da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 15521da177e4SLinus Torvalds 15531da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 15541da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15551da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15561da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15571da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15581da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 15591da177e4SLinus Torvalds return -1; 15601da177e4SLinus Torvalds 15611da177e4SLinus Torvalds /* 15621da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 15631da177e4SLinus Torvalds * get in our way 15641da177e4SLinus Torvalds */ 15651da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 15661da177e4SLinus Torvalds } 15671da177e4SLinus Torvalds 156895f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 156995f75e91SYunkang Tang { 157095f75e91SYunkang Tang int i, nibble; 157195f75e91SYunkang Tang 157295f75e91SYunkang Tang /* 157395f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 157495f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 157595f75e91SYunkang Tang */ 157695f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 157795f75e91SYunkang Tang nibble = (word >> i) & 0xf; 157895f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 157995f75e91SYunkang Tang return -1; 158095f75e91SYunkang Tang } 158195f75e91SYunkang Tang 158295f75e91SYunkang Tang return 0; 158395f75e91SYunkang Tang } 158495f75e91SYunkang Tang 158595f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 158695f75e91SYunkang Tang u16 addr, u16 value) 158795f75e91SYunkang Tang { 158895f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 158995f75e91SYunkang Tang 159095f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 159195f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 159295f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 159395f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 159495f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 159595f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 159695f75e91SYunkang Tang return -1; 159795f75e91SYunkang Tang 159895f75e91SYunkang Tang return 0; 159995f75e91SYunkang Tang } 160095f75e91SYunkang Tang 160195f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 160295f75e91SYunkang Tang { 160395f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 160495f75e91SYunkang Tang 160595f75e91SYunkang Tang if (enable) { 160695f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 160795f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 160895f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 160995f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 161095f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 161195f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 161295f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 161395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 161495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 161595f75e91SYunkang Tang return -1; 161695f75e91SYunkang Tang } else { 161795f75e91SYunkang Tang /* EC to exit monitor mode */ 161895f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 161995f75e91SYunkang Tang return -1; 162095f75e91SYunkang Tang } 162195f75e91SYunkang Tang 162295f75e91SYunkang Tang return 0; 162395f75e91SYunkang Tang } 162495f75e91SYunkang Tang 162595f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 162695f75e91SYunkang Tang { 162795f75e91SYunkang Tang u16 reg_val = 0x181; 162895f75e91SYunkang Tang int ret = -1; 162995f75e91SYunkang Tang 163095f75e91SYunkang Tang /* enter monitor mode, to write the register */ 163195f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 163295f75e91SYunkang Tang return -1; 163395f75e91SYunkang Tang 163495f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 163595f75e91SYunkang Tang 163695f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 163795f75e91SYunkang Tang ret = -1; 163895f75e91SYunkang Tang 163995f75e91SYunkang Tang return ret; 164095f75e91SYunkang Tang } 164195f75e91SYunkang Tang 16421da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 16431da177e4SLinus Torvalds { 16441da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 164524ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 16461da177e4SLinus Torvalds return -1; 16471da177e4SLinus Torvalds 16481da177e4SLinus Torvalds return 0; 16491da177e4SLinus Torvalds } 16501da177e4SLinus Torvalds 16511da177e4SLinus Torvalds /* 16521da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 16531da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 16541da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 16551da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 16561da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 16571da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 16581da177e4SLinus Torvalds * we don't fiddle with it. 16591da177e4SLinus Torvalds */ 16601da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 16611da177e4SLinus Torvalds { 16621da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 16631da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 16641da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 16651da177e4SLinus Torvalds unsigned char param[4]; 16661da177e4SLinus Torvalds 16671da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 16681da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16691da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16701da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 16711da177e4SLinus Torvalds return -1; 16721da177e4SLinus Torvalds 16731da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 16741da177e4SLinus Torvalds return -1; 16751da177e4SLinus Torvalds 16761da177e4SLinus Torvalds return 0; 16771da177e4SLinus Torvalds } 16781da177e4SLinus Torvalds 1679f0d5c6f4SDmitry Torokhov /* 1680f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1681f0d5c6f4SDmitry Torokhov * Used in resync. 1682f0d5c6f4SDmitry Torokhov */ 1683f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1684f0d5c6f4SDmitry Torokhov { 1685f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1686b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1687b7802c5cSDmitry Torokhov bool poll_failed; 1688f0d5c6f4SDmitry Torokhov 168999df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 169025bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1691f0d5c6f4SDmitry Torokhov 1692f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1693f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1694f0d5c6f4SDmitry Torokhov 169599df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 169625bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 1697f0d5c6f4SDmitry Torokhov 169899df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1699f0d5c6f4SDmitry Torokhov return -1; 1700f0d5c6f4SDmitry Torokhov 1701f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 1702f0d5c6f4SDmitry Torokhov /* 1703f0d5c6f4SDmitry Torokhov * Poll the track stick ... 1704f0d5c6f4SDmitry Torokhov */ 1705f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1706f0d5c6f4SDmitry Torokhov return -1; 1707f0d5c6f4SDmitry Torokhov } 1708f0d5c6f4SDmitry Torokhov 1709f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 1710f0d5c6f4SDmitry Torokhov return 0; 1711f0d5c6f4SDmitry Torokhov } 1712f0d5c6f4SDmitry Torokhov 171325bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 17141da177e4SLinus Torvalds { 17151da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 17161da177e4SLinus Torvalds 171799df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 171825bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 17191da177e4SLinus Torvalds return -1; 1720b7802c5cSDmitry Torokhov } 17211da177e4SLinus Torvalds 1722b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 1723b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 17241da177e4SLinus Torvalds return -1; 1725963f626dSPeter Osterlund } 17261da177e4SLinus Torvalds 172725bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 1728b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 17291da177e4SLinus Torvalds return -1; 17301da177e4SLinus Torvalds } 17311da177e4SLinus Torvalds 173299df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 173325bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 17341da177e4SLinus Torvalds return -1; 1735b7802c5cSDmitry Torokhov } 17361da177e4SLinus Torvalds 17371e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 17381e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1739b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 17401e0c5b12SDmitry Torokhov return -1; 17411e0c5b12SDmitry Torokhov } 17421e0c5b12SDmitry Torokhov 17431e0c5b12SDmitry Torokhov return 0; 17441e0c5b12SDmitry Torokhov } 17451e0c5b12SDmitry Torokhov 174695f75e91SYunkang Tang static int alps_hw_init_v6(struct psmouse *psmouse) 174795f75e91SYunkang Tang { 174895f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 174995f75e91SYunkang Tang 175095f75e91SYunkang Tang /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 175195f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, true)) 175295f75e91SYunkang Tang return -1; 175395f75e91SYunkang Tang 175495f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 175595f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 175695f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 175795f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 175895f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 175995f75e91SYunkang Tang return -1; 176095f75e91SYunkang Tang 176195f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 176295f75e91SYunkang Tang return -1; 176395f75e91SYunkang Tang 176495f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 176595f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 176695f75e91SYunkang Tang return -1; 176795f75e91SYunkang Tang } 176895f75e91SYunkang Tang 176995f75e91SYunkang Tang return 0; 177095f75e91SYunkang Tang } 177195f75e91SYunkang Tang 177225bded7cSSeth Forshee /* 1773cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 177425bded7cSSeth Forshee */ 1775cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1776cd401204SKevin Cernekee int reg_base, bool enable) 177725bded7cSSeth Forshee { 1778cd401204SKevin Cernekee int reg_val, ret = -1; 177925bded7cSSeth Forshee 1780d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 178125bded7cSSeth Forshee return -1; 178225bded7cSSeth Forshee 1783cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1784cd401204SKevin Cernekee if (reg_val == -1) 1785cd401204SKevin Cernekee goto error; 1786cd401204SKevin Cernekee 178725bded7cSSeth Forshee if (enable) 178825bded7cSSeth Forshee reg_val |= 0x01; 178925bded7cSSeth Forshee else 179025bded7cSSeth Forshee reg_val &= ~0x01; 179125bded7cSSeth Forshee 1792cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 179325bded7cSSeth Forshee 1794cd401204SKevin Cernekee error: 1795cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 1796cd401204SKevin Cernekee ret = -1; 1797cd401204SKevin Cernekee return ret; 179825bded7cSSeth Forshee } 179925bded7cSSeth Forshee 180025bded7cSSeth Forshee /* Must be in command mode when calling this function */ 180125bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 180225bded7cSSeth Forshee { 180325bded7cSSeth Forshee int reg_val; 180425bded7cSSeth Forshee 180525bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 180625bded7cSSeth Forshee if (reg_val == -1) 180725bded7cSSeth Forshee return -1; 180825bded7cSSeth Forshee 180925bded7cSSeth Forshee reg_val |= 0x06; 181025bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 181125bded7cSSeth Forshee return -1; 181225bded7cSSeth Forshee 181325bded7cSSeth Forshee return 0; 181425bded7cSSeth Forshee } 181525bded7cSSeth Forshee 1816cd401204SKevin Cernekee static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 181725bded7cSSeth Forshee { 1818cd401204SKevin Cernekee int ret = -EIO, reg_val; 181925bded7cSSeth Forshee 1820d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 182125bded7cSSeth Forshee goto error; 182225bded7cSSeth Forshee 1823cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 182425bded7cSSeth Forshee if (reg_val == -1) 182525bded7cSSeth Forshee goto error; 1826cd401204SKevin Cernekee 1827cd401204SKevin Cernekee /* bit 7: trackstick is present */ 1828cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 1829cd401204SKevin Cernekee 1830cd401204SKevin Cernekee error: 1831cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 1832cd401204SKevin Cernekee return ret; 1833cd401204SKevin Cernekee } 1834cd401204SKevin Cernekee 1835cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 1836cd401204SKevin Cernekee { 1837cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1838cd401204SKevin Cernekee int ret = 0; 1839cd401204SKevin Cernekee unsigned char param[4]; 1840cd401204SKevin Cernekee 1841cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 1842cd401204SKevin Cernekee return -EIO; 184325bded7cSSeth Forshee 184425bded7cSSeth Forshee /* 184525bded7cSSeth Forshee * E7 report for the trackstick 184625bded7cSSeth Forshee * 184725bded7cSSeth Forshee * There have been reports of failures to seem to trace back 184825bded7cSSeth Forshee * to the above trackstick check failing. When these occur 184925bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 185025bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 185125bded7cSSeth Forshee * all. 185225bded7cSSeth Forshee */ 1853cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 1854a09221e8SDmitry Torokhov psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); 1855cd401204SKevin Cernekee ret = -ENODEV; 185625bded7cSSeth Forshee } else { 185739fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 185825bded7cSSeth Forshee 185925bded7cSSeth Forshee /* 186025bded7cSSeth Forshee * Not sure what this does, but it is absolutely 186125bded7cSSeth Forshee * essential. Without it, the touchpad does not 186225bded7cSSeth Forshee * work at all and the trackstick just emits normal 186325bded7cSSeth Forshee * PS/2 packets. 186425bded7cSSeth Forshee */ 186525bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 186625bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 186725bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 186825bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x9) || 186925bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x4)) { 187025bded7cSSeth Forshee psmouse_err(psmouse, 187125bded7cSSeth Forshee "Error sending magic E6 sequence\n"); 1872cd401204SKevin Cernekee ret = -EIO; 187325bded7cSSeth Forshee goto error; 187425bded7cSSeth Forshee } 187525bded7cSSeth Forshee 1876cd401204SKevin Cernekee /* 1877cd401204SKevin Cernekee * This ensures the trackstick packets are in the format 1878cd401204SKevin Cernekee * supported by this driver. If bit 1 isn't set the packet 1879cd401204SKevin Cernekee * format is different. 1880cd401204SKevin Cernekee */ 1881d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1882cd401204SKevin Cernekee alps_command_mode_write_reg(psmouse, 1883cd401204SKevin Cernekee reg_base + 0x08, 0x82) || 1884cd401204SKevin Cernekee alps_exit_command_mode(psmouse)) 1885cd401204SKevin Cernekee ret = -EIO; 1886cd401204SKevin Cernekee } 1887cd401204SKevin Cernekee 1888cd401204SKevin Cernekee error: 1889cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 1890cd401204SKevin Cernekee ret = -EIO; 1891cd401204SKevin Cernekee 1892cd401204SKevin Cernekee return ret; 1893cd401204SKevin Cernekee } 1894cd401204SKevin Cernekee 1895cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 1896cd401204SKevin Cernekee { 1897cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1898cd401204SKevin Cernekee int reg_val; 1899cd401204SKevin Cernekee unsigned char param[4]; 1900cd401204SKevin Cernekee 1901cd401204SKevin Cernekee reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 1902cd401204SKevin Cernekee if (reg_val == -EIO) 1903cd401204SKevin Cernekee goto error; 190439fbe585SDmitry Torokhov 1905cd401204SKevin Cernekee if (reg_val == 0 && 1906cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 1907cd401204SKevin Cernekee goto error; 1908cd401204SKevin Cernekee 1909d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1910cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 191125bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 191225bded7cSSeth Forshee goto error; 191325bded7cSSeth Forshee } 191425bded7cSSeth Forshee 191525bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 191625bded7cSSeth Forshee if (reg_val == -1) 191725bded7cSSeth Forshee goto error; 191825bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 191925bded7cSSeth Forshee goto error; 192025bded7cSSeth Forshee 192125bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 192225bded7cSSeth Forshee if (reg_val == -1) 192325bded7cSSeth Forshee goto error; 192425bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 192525bded7cSSeth Forshee goto error; 192625bded7cSSeth Forshee 192725bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 192825bded7cSSeth Forshee goto error; 192925bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 193025bded7cSSeth Forshee goto error; 193125bded7cSSeth Forshee 193225bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 193325bded7cSSeth Forshee goto error; 193425bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 193525bded7cSSeth Forshee goto error; 193625bded7cSSeth Forshee 193725bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 193825bded7cSSeth Forshee goto error; 193925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 194025bded7cSSeth Forshee goto error; 194125bded7cSSeth Forshee 194225bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 194325bded7cSSeth Forshee goto error; 194425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 194525bded7cSSeth Forshee goto error; 194625bded7cSSeth Forshee 194725bded7cSSeth Forshee alps_exit_command_mode(psmouse); 194825bded7cSSeth Forshee 194925bded7cSSeth Forshee /* Set rate and enable data reporting */ 195025bded7cSSeth Forshee param[0] = 0x64; 195125bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 195225bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 195325bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 195425bded7cSSeth Forshee return -1; 195525bded7cSSeth Forshee } 195625bded7cSSeth Forshee 195725bded7cSSeth Forshee return 0; 195825bded7cSSeth Forshee 195925bded7cSSeth Forshee error: 196025bded7cSSeth Forshee /* 196125bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 196225bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 196325bded7cSSeth Forshee * to be safe 196425bded7cSSeth Forshee */ 196525bded7cSSeth Forshee alps_exit_command_mode(psmouse); 196625bded7cSSeth Forshee return -1; 196725bded7cSSeth Forshee } 196825bded7cSSeth Forshee 1969f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 1970f3f33c67SHans de Goede { 1971f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 1972f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 1973f3f33c67SHans de Goede 1974f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 1975f3f33c67SHans de Goede if (reg < 0) 1976f3f33c67SHans de Goede return reg; 1977f3f33c67SHans de Goede 1978f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1979f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 1980f3f33c67SHans de Goede 1981f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 1982f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 1983f3f33c67SHans de Goede 1984f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 1985f3f33c67SHans de Goede if (reg < 0) 1986f3f33c67SHans de Goede return reg; 1987f3f33c67SHans de Goede 1988f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1989f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 1990f3f33c67SHans de Goede 1991f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 1992f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 1993f3f33c67SHans de Goede 1994f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 1995f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 1996f3f33c67SHans de Goede 1997f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 1998f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 1999f3f33c67SHans de Goede 2000f3f33c67SHans de Goede psmouse_dbg(psmouse, 2001f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 2002f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 2003f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 2004f3f33c67SHans de Goede 2005f3f33c67SHans de Goede return 0; 2006f3f33c67SHans de Goede } 2007f3f33c67SHans de Goede 20081302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 20091302bac3SKevin Cernekee { 2010cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 20111302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 20121302bac3SKevin Cernekee int reg_val, ret = -1; 20131302bac3SKevin Cernekee 2014cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 2015cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 2016cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 2017cd401204SKevin Cernekee if (reg_val == -EIO) 2018cd401204SKevin Cernekee goto error; 2019cd401204SKevin Cernekee } 2020cd401204SKevin Cernekee 2021d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 20221302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 20231302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 20241302bac3SKevin Cernekee goto error; 20251302bac3SKevin Cernekee 2026f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 2027f3f33c67SHans de Goede goto error; 2028f3f33c67SHans de Goede 20291302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 20301302bac3SKevin Cernekee if (reg_val == -1) 20311302bac3SKevin Cernekee goto error; 20321302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 20331302bac3SKevin Cernekee goto error; 20341302bac3SKevin Cernekee 20351302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 20361302bac3SKevin Cernekee goto error; 20371302bac3SKevin Cernekee 20381302bac3SKevin Cernekee /* enter absolute mode */ 20391302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 20401302bac3SKevin Cernekee if (reg_val == -1) 20411302bac3SKevin Cernekee goto error; 20421302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 20431302bac3SKevin Cernekee goto error; 20441302bac3SKevin Cernekee 20451302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 20461302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 20471302bac3SKevin Cernekee 20481302bac3SKevin Cernekee error: 20491302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 20501302bac3SKevin Cernekee return ret; 20511302bac3SKevin Cernekee } 20521302bac3SKevin Cernekee 205325bded7cSSeth Forshee /* Must be in command mode when calling this function */ 205425bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 205525bded7cSSeth Forshee { 205625bded7cSSeth Forshee int reg_val; 205725bded7cSSeth Forshee 205825bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 205925bded7cSSeth Forshee if (reg_val == -1) 206025bded7cSSeth Forshee return -1; 206125bded7cSSeth Forshee 206225bded7cSSeth Forshee reg_val |= 0x02; 206325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 206425bded7cSSeth Forshee return -1; 206525bded7cSSeth Forshee 206625bded7cSSeth Forshee return 0; 206725bded7cSSeth Forshee } 206825bded7cSSeth Forshee 206925bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 207025bded7cSSeth Forshee { 207125bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 207225bded7cSSeth Forshee unsigned char param[4]; 207325bded7cSSeth Forshee 2074d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 207525bded7cSSeth Forshee goto error; 207625bded7cSSeth Forshee 207725bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 207825bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 207925bded7cSSeth Forshee goto error; 208025bded7cSSeth Forshee } 208125bded7cSSeth Forshee 208225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 208325bded7cSSeth Forshee goto error; 208425bded7cSSeth Forshee 208525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 208625bded7cSSeth Forshee goto error; 208725bded7cSSeth Forshee 208825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 208925bded7cSSeth Forshee goto error; 209025bded7cSSeth Forshee 209125bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 209225bded7cSSeth Forshee goto error; 209325bded7cSSeth Forshee 209425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 209525bded7cSSeth Forshee goto error; 209625bded7cSSeth Forshee 209725bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 209825bded7cSSeth Forshee goto error; 209925bded7cSSeth Forshee 210025bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 210125bded7cSSeth Forshee goto error; 210225bded7cSSeth Forshee 210325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 210425bded7cSSeth Forshee goto error; 210525bded7cSSeth Forshee 210625bded7cSSeth Forshee alps_exit_command_mode(psmouse); 210725bded7cSSeth Forshee 210825bded7cSSeth Forshee /* 210925bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 211025bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 211125bded7cSSeth Forshee * just in a more compact format. 211225bded7cSSeth Forshee */ 211325bded7cSSeth Forshee param[0] = 0xc8; 211425bded7cSSeth Forshee param[1] = 0x64; 211525bded7cSSeth Forshee param[2] = 0x50; 211625bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 211725bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 211825bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 211925bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 212025bded7cSSeth Forshee return -1; 212125bded7cSSeth Forshee 212225bded7cSSeth Forshee /* Set rate and enable data reporting */ 212325bded7cSSeth Forshee param[0] = 0x64; 212425bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 212525bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 212625bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 212725bded7cSSeth Forshee return -1; 212825bded7cSSeth Forshee } 212925bded7cSSeth Forshee 213025bded7cSSeth Forshee return 0; 213125bded7cSSeth Forshee 213225bded7cSSeth Forshee error: 213325bded7cSSeth Forshee /* 213425bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 213525bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 213625bded7cSSeth Forshee * to be safe 213725bded7cSSeth Forshee */ 213825bded7cSSeth Forshee alps_exit_command_mode(psmouse); 213925bded7cSSeth Forshee return -1; 214025bded7cSSeth Forshee } 214125bded7cSSeth Forshee 2142ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2143ee65d4b3SYunkang Tang struct alps_data *priv) 2144ee65d4b3SYunkang Tang { 2145ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2146ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2147ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2148ee65d4b3SYunkang Tang 2149ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2150ee65d4b3SYunkang Tang return -1; 2151ee65d4b3SYunkang Tang 2152ee65d4b3SYunkang Tang param[0] = 0x0a; 2153ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2154ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2155ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2156ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2157ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2158ee65d4b3SYunkang Tang return -1; 2159ee65d4b3SYunkang Tang 2160ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2161ee65d4b3SYunkang Tang return -1; 2162ee65d4b3SYunkang Tang 2163ee65d4b3SYunkang Tang /* 2164ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2165ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2166ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2167ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2168ee65d4b3SYunkang Tang * 2169ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2170ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2171ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2172ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2173ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2174ee65d4b3SYunkang Tang */ 2175ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2176ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2177ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2178ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2179ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2180ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2181ee65d4b3SYunkang Tang 2182ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2183ee65d4b3SYunkang Tang return -1; 2184ee65d4b3SYunkang Tang 2185ee65d4b3SYunkang Tang return 0; 2186ee65d4b3SYunkang Tang } 2187ee65d4b3SYunkang Tang 218875af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 218975af9e56SDave Turvene { 219075af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 219175af9e56SDave Turvene unsigned char param[2]; 219275af9e56SDave Turvene 219375af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 219475af9e56SDave Turvene param[0] = 0x64; 219575af9e56SDave Turvene param[1] = 0x28; 219675af9e56SDave Turvene 219775af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 219875af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 219975af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 220075af9e56SDave Turvene return -1; 220175af9e56SDave Turvene 220275af9e56SDave Turvene return 0; 220375af9e56SDave Turvene } 220475af9e56SDave Turvene 22053808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 22063808843cSYunkang Tang { 22073808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 22083808843cSYunkang Tang int reg_val, ret = -1; 22093808843cSYunkang Tang 22103808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 22113808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 22123808843cSYunkang Tang goto error; 22133808843cSYunkang Tang 2214f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2215f3f33c67SHans de Goede goto error; 2216f3f33c67SHans de Goede 22173808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 22183808843cSYunkang Tang goto error; 22193808843cSYunkang Tang 22203808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 22213808843cSYunkang Tang if (reg_val == -1) 22223808843cSYunkang Tang goto error; 22233808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 22243808843cSYunkang Tang goto error; 22253808843cSYunkang Tang 22263808843cSYunkang Tang alps_exit_command_mode(psmouse); 22273808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 22283808843cSYunkang Tang 22293808843cSYunkang Tang error: 22303808843cSYunkang Tang alps_exit_command_mode(psmouse); 22313808843cSYunkang Tang return ret; 22323808843cSYunkang Tang } 22333808843cSYunkang Tang 22343296f71cSDmitry Torokhov static int alps_set_protocol(struct psmouse *psmouse, 22353296f71cSDmitry Torokhov struct alps_data *priv, 22363296f71cSDmitry Torokhov const struct alps_protocol_info *protocol) 223725bded7cSSeth Forshee { 22383296f71cSDmitry Torokhov psmouse->private = priv; 22393296f71cSDmitry Torokhov 22403296f71cSDmitry Torokhov setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 22413296f71cSDmitry Torokhov 22423296f71cSDmitry Torokhov priv->proto_version = protocol->version; 22433296f71cSDmitry Torokhov priv->byte0 = protocol->byte0; 22443296f71cSDmitry Torokhov priv->mask0 = protocol->mask0; 22453296f71cSDmitry Torokhov priv->flags = protocol->flags; 2246f673ceb1SKevin Cernekee 22477a9f73e7SKevin Cernekee priv->x_max = 2000; 22487a9f73e7SKevin Cernekee priv->y_max = 1400; 22497a9f73e7SKevin Cernekee priv->x_bits = 15; 22507a9f73e7SKevin Cernekee priv->y_bits = 11; 22517a9f73e7SKevin Cernekee 225299df65e7SKevin Cernekee switch (priv->proto_version) { 225325bded7cSSeth Forshee case ALPS_PROTO_V1: 225425bded7cSSeth Forshee case ALPS_PROTO_V2: 225524af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 225624af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 225724af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 225895f75e91SYunkang Tang priv->x_max = 1023; 225995f75e91SYunkang Tang priv->y_max = 767; 226025bded7cSSeth Forshee break; 2261fb2dd7a6SDmitry Torokhov 226225bded7cSSeth Forshee case ALPS_PROTO_V3: 226324af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 226424af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 226524af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 2266f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 226750e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 226850e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 226925bded7cSSeth Forshee break; 2270fb2dd7a6SDmitry Torokhov 2271fb2dd7a6SDmitry Torokhov case ALPS_PROTO_V3_RUSHMORE: 2272fb2dd7a6SDmitry Torokhov priv->hw_init = alps_hw_init_rushmore_v3; 2273fb2dd7a6SDmitry Torokhov priv->process_packet = alps_process_packet_v3; 2274fb2dd7a6SDmitry Torokhov priv->set_abs_params = alps_set_abs_params_mt; 2275fb2dd7a6SDmitry Torokhov priv->decode_fields = alps_decode_rushmore; 2276fb2dd7a6SDmitry Torokhov priv->nibble_commands = alps_v3_nibble_commands; 2277fb2dd7a6SDmitry Torokhov priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2278fb2dd7a6SDmitry Torokhov priv->x_bits = 16; 2279fb2dd7a6SDmitry Torokhov priv->y_bits = 12; 22803296f71cSDmitry Torokhov 22813296f71cSDmitry Torokhov if (alps_probe_trackstick_v3(psmouse, 22823296f71cSDmitry Torokhov ALPS_REG_BASE_RUSHMORE) < 0) 22833296f71cSDmitry Torokhov priv->flags &= ~ALPS_DUALPOINT; 22843296f71cSDmitry Torokhov 2285fb2dd7a6SDmitry Torokhov break; 2286fb2dd7a6SDmitry Torokhov 228725bded7cSSeth Forshee case ALPS_PROTO_V4: 228824af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 228924af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 229024af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 229150e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 229250e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 229325bded7cSSeth Forshee break; 22943296f71cSDmitry Torokhov 229575af9e56SDave Turvene case ALPS_PROTO_V5: 229675af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2297ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 229875af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 229975af9e56SDave Turvene priv->set_abs_params = alps_set_abs_params_mt; 230075af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 230175af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 230275af9e56SDave Turvene priv->x_bits = 23; 230375af9e56SDave Turvene priv->y_bits = 12; 2304c164c147SDmitry Torokhov 2305c164c147SDmitry Torokhov if (alps_dolphin_get_device_area(psmouse, priv)) 2306c164c147SDmitry Torokhov return -EIO; 2307c164c147SDmitry Torokhov 230875af9e56SDave Turvene break; 23093296f71cSDmitry Torokhov 231095f75e91SYunkang Tang case ALPS_PROTO_V6: 231195f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 231295f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 231395f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 231495f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 231595f75e91SYunkang Tang priv->x_max = 2047; 231695f75e91SYunkang Tang priv->y_max = 1535; 231795f75e91SYunkang Tang break; 23183296f71cSDmitry Torokhov 23193808843cSYunkang Tang case ALPS_PROTO_V7: 23203808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 23213808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 23223808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 23233808843cSYunkang Tang priv->set_abs_params = alps_set_abs_params_mt; 23243808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 23253808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2326c164c147SDmitry Torokhov priv->x_max = 0xfff; 2327c164c147SDmitry Torokhov priv->y_max = 0x7ff; 23283808843cSYunkang Tang 23293808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 23303808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 23313296f71cSDmitry Torokhov 23323808843cSYunkang Tang break; 233325bded7cSSeth Forshee } 23343296f71cSDmitry Torokhov 23353296f71cSDmitry Torokhov return 0; 233625bded7cSSeth Forshee } 233725bded7cSSeth Forshee 23383296f71cSDmitry Torokhov static const struct alps_protocol_info *alps_match_table(unsigned char *e7, 23393296f71cSDmitry Torokhov unsigned char *ec) 23402e992cc0SKevin Cernekee { 2341b5d6b851SKevin Cernekee const struct alps_model_info *model; 23422e992cc0SKevin Cernekee int i; 23432e992cc0SKevin Cernekee 2344b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2345b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2346b5d6b851SKevin Cernekee 2347b5d6b851SKevin Cernekee if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2348b5d6b851SKevin Cernekee (!model->command_mode_resp || 2349b5d6b851SKevin Cernekee model->command_mode_resp == ec[2])) { 2350b5d6b851SKevin Cernekee 23513296f71cSDmitry Torokhov return &model->protocol_info; 2352b5d6b851SKevin Cernekee } 2353b5d6b851SKevin Cernekee } 2354b5d6b851SKevin Cernekee 23553296f71cSDmitry Torokhov return NULL; 2356b5d6b851SKevin Cernekee } 2357b5d6b851SKevin Cernekee 2358b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2359b5d6b851SKevin Cernekee { 23603296f71cSDmitry Torokhov const struct alps_protocol_info *protocol; 2361b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2362a09221e8SDmitry Torokhov int error; 2363b5d6b851SKevin Cernekee 23642e992cc0SKevin Cernekee /* 23652e992cc0SKevin Cernekee * First try "E6 report". 23662e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 23672e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 23682e992cc0SKevin Cernekee * pressed. 23692e992cc0SKevin Cernekee */ 2370b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2371b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2372b5d6b851SKevin Cernekee return -EIO; 23732e992cc0SKevin Cernekee 2374b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2375b5d6b851SKevin Cernekee return -EINVAL; 23762e992cc0SKevin Cernekee 23772e992cc0SKevin Cernekee /* 2378b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2379b5d6b851SKevin Cernekee * most ALPS touchpads. 23802e992cc0SKevin Cernekee */ 2381b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2382b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2383b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2384b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2385b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2386b5d6b851SKevin Cernekee return -EIO; 23872e992cc0SKevin Cernekee 23883296f71cSDmitry Torokhov protocol = alps_match_table(e7, ec); 23893296f71cSDmitry Torokhov if (!protocol) { 23903296f71cSDmitry Torokhov if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 23913296f71cSDmitry Torokhov ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 23923296f71cSDmitry Torokhov protocol = &alps_v5_protocol_data; 23933296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && 23943296f71cSDmitry Torokhov ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 23953296f71cSDmitry Torokhov protocol = &alps_v7_protocol_data; 23963296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x08) { 23973296f71cSDmitry Torokhov protocol = &alps_v3_rushmore_data; 23983296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x07 && 23993296f71cSDmitry Torokhov ec[2] >= 0x90 && ec[2] <= 0x9d) { 24003296f71cSDmitry Torokhov protocol = &alps_v3_protocol_data; 24013296f71cSDmitry Torokhov } else { 24023296f71cSDmitry Torokhov psmouse_dbg(psmouse, 24033296f71cSDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 24043296f71cSDmitry Torokhov return -EINVAL; 24053296f71cSDmitry Torokhov } 24063296f71cSDmitry Torokhov } 24073296f71cSDmitry Torokhov 2408a09221e8SDmitry Torokhov if (priv) { 2409c0cd17f6SHans de Goede /* Save the Firmware version */ 2410c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2411a09221e8SDmitry Torokhov error = alps_set_protocol(psmouse, priv, protocol); 2412a09221e8SDmitry Torokhov if (error) 2413a09221e8SDmitry Torokhov return error; 2414a09221e8SDmitry Torokhov } 2415c0cd17f6SHans de Goede 2416a09221e8SDmitry Torokhov return 0; 24172e992cc0SKevin Cernekee } 24182e992cc0SKevin Cernekee 24191e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 24201e0c5b12SDmitry Torokhov { 2421b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 242271bb21b6SMaxim Levitsky 24231e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 24241e0c5b12SDmitry Torokhov 2425b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 24261e0c5b12SDmitry Torokhov return -1; 24271e0c5b12SDmitry Torokhov 242824af5cb9SKevin Cernekee return priv->hw_init(psmouse); 24291da177e4SLinus Torvalds } 24301da177e4SLinus Torvalds 24311da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 24321da177e4SLinus Torvalds { 24331da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 24342e5b636bSDmitry Torokhov 24351da177e4SLinus Torvalds psmouse_reset(psmouse); 24361d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 243704aae283SPali Rohár if (priv->dev2) 24382e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 243904aae283SPali Rohár if (!IS_ERR_OR_NULL(priv->dev3)) 244004aae283SPali Rohár input_unregister_device(priv->dev3); 24411da177e4SLinus Torvalds kfree(priv); 24421da177e4SLinus Torvalds } 24431da177e4SLinus Torvalds 244424af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 244524af5cb9SKevin Cernekee struct input_dev *dev1) 244624af5cb9SKevin Cernekee { 244795f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 244895f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 244924af5cb9SKevin Cernekee } 245024af5cb9SKevin Cernekee 245124af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 245224af5cb9SKevin Cernekee struct input_dev *dev1) 245324af5cb9SKevin Cernekee { 24547a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 24557a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 245624af5cb9SKevin Cernekee 2457f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2458f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2459f3f33c67SHans de Goede 2460cdf333efSHans de Goede input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER | 2461cdf333efSHans de Goede INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT); 2462cdf333efSHans de Goede 246324af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 246424af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 24653808843cSYunkang Tang 24663808843cSYunkang Tang /* V7 is real multi-touch */ 24673808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7) 24683808843cSYunkang Tang clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit); 246924af5cb9SKevin Cernekee } 247024af5cb9SKevin Cernekee 24711da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 24721da177e4SLinus Torvalds { 2473a09221e8SDmitry Torokhov struct alps_data *priv = psmouse->private; 247404aae283SPali Rohár struct input_dev *dev1 = psmouse->dev; 2475a09221e8SDmitry Torokhov int error; 24761da177e4SLinus Torvalds 2477a09221e8SDmitry Torokhov error = priv->hw_init(psmouse); 2478a09221e8SDmitry Torokhov if (error) 24791da177e4SLinus Torvalds goto init_fail; 24801da177e4SLinus Torvalds 24817105d2eaSDmitry Torokhov /* 24827105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 24837105d2eaSDmitry Torokhov * is not a relative device. 24847105d2eaSDmitry Torokhov */ 24857105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 24867105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 24877105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 24887105d2eaSDmitry Torokhov 24897105d2eaSDmitry Torokhov /* 24907105d2eaSDmitry Torokhov * Now set up our capabilities. 24917105d2eaSDmitry Torokhov */ 24927b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 24937b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 24947b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 249571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 249671bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 24971da177e4SLinus Torvalds 24987b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 249925bded7cSSeth Forshee 250024af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 25013808843cSYunkang Tang /* No pressure on V7 */ 25023808843cSYunkang Tang if (priv->proto_version != ALPS_PROTO_V7) 25032e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 25041da177e4SLinus Torvalds 250599df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 25067b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 25077b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 25081da177e4SLinus Torvalds } 25091da177e4SLinus Torvalds 251099df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 25117b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 25127b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 25131da177e4SLinus Torvalds } 25141da177e4SLinus Torvalds 251599df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 251671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 251771bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 251871bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 251971bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 25203808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 25213808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 25223808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 252371bb21b6SMaxim Levitsky } else { 252471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 252571bb21b6SMaxim Levitsky } 252671bb21b6SMaxim Levitsky 2527dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 252804aae283SPali Rohár struct input_dev *dev2; 252904aae283SPali Rohár 253004aae283SPali Rohár dev2 = input_allocate_device(); 253104aae283SPali Rohár if (!dev2) { 253204aae283SPali Rohár psmouse_err(psmouse, 253304aae283SPali Rohár "failed to allocate trackstick device\n"); 253404aae283SPali Rohár error = -ENOMEM; 253504aae283SPali Rohár goto init_fail; 253604aae283SPali Rohár } 253704aae283SPali Rohár 253804aae283SPali Rohár snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1", 253904aae283SPali Rohár psmouse->ps2dev.serio->phys); 254004aae283SPali Rohár dev2->phys = priv->phys2; 254104aae283SPali Rohár 2542dfba8600SPali Rohár /* 2543dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 2544dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 2545dfba8600SPali Rohár */ 2546dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 2547dfba8600SPali Rohár 25482e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 25492e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 255004aae283SPali Rohár dev2->id.product = PSMOUSE_ALPS; 255104aae283SPali Rohár dev2->id.version = priv->proto_version; 25521db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 25531da177e4SLinus Torvalds 255404aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_X); 255504aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_Y); 255604aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_LEFT); 255704aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_RIGHT); 255804aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_MIDDLE); 25591da177e4SLinus Torvalds 256001d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 25617611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 25627611392fSHans de Goede 256304aae283SPali Rohár error = input_register_device(dev2); 256404aae283SPali Rohár if (error) { 256504aae283SPali Rohár psmouse_err(psmouse, 256604aae283SPali Rohár "failed to register trackstick device: %d\n", 256704aae283SPali Rohár error); 256804aae283SPali Rohár input_free_device(dev2); 2569f42649e8SDmitry Torokhov goto init_fail; 257004aae283SPali Rohár } 257104aae283SPali Rohár 257204aae283SPali Rohár priv->dev2 = dev2; 257304aae283SPali Rohár } 257404aae283SPali Rohár 257504aae283SPali Rohár priv->psmouse = psmouse; 257604aae283SPali Rohár 257704aae283SPali Rohár INIT_DELAYED_WORK(&priv->dev3_register_work, 257804aae283SPali Rohár alps_register_bare_ps2_mouse); 25791da177e4SLinus Torvalds 25801da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 2581f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 25821da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 25831da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 258499df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 25851da177e4SLinus Torvalds 2586f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2587f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 2588f0d5c6f4SDmitry Torokhov 25899d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 25909d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 25919d720b34SPali Rohár 25921da177e4SLinus Torvalds return 0; 25931da177e4SLinus Torvalds 25941da177e4SLinus Torvalds init_fail: 2595f42649e8SDmitry Torokhov psmouse_reset(psmouse); 2596a09221e8SDmitry Torokhov /* 2597a09221e8SDmitry Torokhov * Even though we did not allocate psmouse->private we do free 2598a09221e8SDmitry Torokhov * it here. 2599a09221e8SDmitry Torokhov */ 2600a09221e8SDmitry Torokhov kfree(psmouse->private); 26011e0c5b12SDmitry Torokhov psmouse->private = NULL; 2602a09221e8SDmitry Torokhov return error; 26031da177e4SLinus Torvalds } 26041da177e4SLinus Torvalds 2605b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 26061da177e4SLinus Torvalds { 2607a09221e8SDmitry Torokhov struct alps_data *priv; 2608a09221e8SDmitry Torokhov int error; 26091da177e4SLinus Torvalds 2610a09221e8SDmitry Torokhov error = alps_identify(psmouse, NULL); 2611a09221e8SDmitry Torokhov if (error) 2612a09221e8SDmitry Torokhov return error; 2613a09221e8SDmitry Torokhov 2614a09221e8SDmitry Torokhov /* 2615a09221e8SDmitry Torokhov * Reset the device to make sure it is fully operational: 2616a09221e8SDmitry Torokhov * on some laptops, like certain Dell Latitudes, we may 2617a09221e8SDmitry Torokhov * fail to properly detect presence of trackstick if device 2618a09221e8SDmitry Torokhov * has not been reset. 2619a09221e8SDmitry Torokhov */ 2620a09221e8SDmitry Torokhov psmouse_reset(psmouse); 2621a09221e8SDmitry Torokhov 2622a09221e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 2623a09221e8SDmitry Torokhov if (!priv) 2624a09221e8SDmitry Torokhov return -ENOMEM; 2625a09221e8SDmitry Torokhov 2626a09221e8SDmitry Torokhov error = alps_identify(psmouse, priv); 262793050db2SDmitry Torokhov if (error) { 262893050db2SDmitry Torokhov kfree(priv); 2629a09221e8SDmitry Torokhov return error; 263093050db2SDmitry Torokhov } 26311da177e4SLinus Torvalds 26321da177e4SLinus Torvalds if (set_properties) { 26331da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 2634a09221e8SDmitry Torokhov psmouse->name = priv->flags & ALPS_DUALPOINT ? 2635968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 2636a09221e8SDmitry Torokhov psmouse->model = priv->proto_version; 2637a09221e8SDmitry Torokhov } else { 2638a09221e8SDmitry Torokhov /* 2639a09221e8SDmitry Torokhov * Destroy alps_data structure we allocated earlier since 2640a09221e8SDmitry Torokhov * this was just a "trial run". Otherwise we'll keep it 2641a09221e8SDmitry Torokhov * to be used by alps_init() which has to be called if 2642a09221e8SDmitry Torokhov * we succeed and set_properties is true. 2643a09221e8SDmitry Torokhov */ 2644a09221e8SDmitry Torokhov kfree(priv); 2645a09221e8SDmitry Torokhov psmouse->private = NULL; 26461da177e4SLinus Torvalds } 2647a09221e8SDmitry Torokhov 26481da177e4SLinus Torvalds return 0; 26491da177e4SLinus Torvalds } 26501da177e4SLinus Torvalds 2651