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 1563db5b9f7SMasaki Ota static const struct alps_protocol_info alps_v8_protocol_data = { 1573db5b9f7SMasaki Ota ALPS_PROTO_V8, 0x18, 0x18, 0 1583db5b9f7SMasaki Ota }; 1593db5b9f7SMasaki Ota 16024af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 16124af5cb9SKevin Cernekee struct input_dev *dev1); 162688ea364SHans de Goede static void alps_set_abs_params_semi_mt(struct alps_data *priv, 16324af5cb9SKevin Cernekee struct input_dev *dev1); 1648eccd393SMasaki Ota static void alps_set_abs_params_v7(struct alps_data *priv, 1658eccd393SMasaki Ota struct input_dev *dev1); 1663db5b9f7SMasaki Ota static void alps_set_abs_params_ss4_v2(struct alps_data *priv, 1673db5b9f7SMasaki Ota struct input_dev *dev1); 16824af5cb9SKevin Cernekee 169d4b347b2SSeth Forshee /* Packet formats are described in Documentation/input/alps.txt */ 1701da177e4SLinus Torvalds 17199df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 1721d9f2626SSebastian Kapfer unsigned char data) 1731d9f2626SSebastian Kapfer { 17499df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 1751d9f2626SSebastian Kapfer } 1761d9f2626SSebastian Kapfer 17704aae283SPali Rohár static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, 1781d9f2626SSebastian Kapfer int left, int right, int middle) 1791d9f2626SSebastian Kapfer { 1801d9f2626SSebastian Kapfer struct input_dev *dev; 1811d9f2626SSebastian Kapfer 1821d9f2626SSebastian Kapfer /* 1831d9f2626SSebastian Kapfer * If shared button has already been reported on the 1841d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 1851d9f2626SSebastian Kapfer * sent through that device. 1861d9f2626SSebastian Kapfer */ 18704aae283SPali Rohár dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1; 1881d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 1891d9f2626SSebastian Kapfer 19004aae283SPali Rohár dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1; 1911d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 1921d9f2626SSebastian Kapfer 19304aae283SPali Rohár dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1; 1941d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 1951d9f2626SSebastian Kapfer 1961d9f2626SSebastian Kapfer /* 1971d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 1981d9f2626SSebastian Kapfer * device later once we report the rest of the events. 1991d9f2626SSebastian Kapfer */ 20004aae283SPali Rohár if (dev2) 2011d9f2626SSebastian Kapfer input_sync(dev2); 2021d9f2626SSebastian Kapfer } 2031d9f2626SSebastian Kapfer 20425bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 2051da177e4SLinus Torvalds { 2061da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 2071da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 2082e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 2092e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 2101da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 211c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 2121da177e4SLinus Torvalds 21399df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 214d2f4012fSYotam Medini left = packet[2] & 0x10; 215d2f4012fSYotam Medini right = packet[2] & 0x08; 2161da177e4SLinus Torvalds middle = 0; 2171da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 2181da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 2191da177e4SLinus Torvalds z = packet[5]; 2201da177e4SLinus Torvalds } else { 2211da177e4SLinus Torvalds left = packet[3] & 1; 2221da177e4SLinus Torvalds right = packet[3] & 2; 2231da177e4SLinus Torvalds middle = packet[3] & 4; 2241da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2251da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2261da177e4SLinus Torvalds z = packet[5]; 2271da177e4SLinus Torvalds } 2281da177e4SLinus Torvalds 22999df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2303c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2313c00bb96SLaszlo Kajan forward = packet[2] & 4; 232c30b4c10SIvan Casado Ruiz } 233c30b4c10SIvan Casado Ruiz 23499df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 235c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 236c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 237c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 238c30b4c10SIvan Casado Ruiz forward = back = 0; 239c30b4c10SIvan Casado Ruiz } 240c30b4c10SIvan Casado Ruiz 2411da177e4SLinus Torvalds ges = packet[2] & 1; 2421da177e4SLinus Torvalds fin = packet[2] & 2; 2431da177e4SLinus Torvalds 24499df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2451da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2461da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 247d7ed5d88SUlrich Dangel 24804aae283SPali Rohár alps_report_buttons(dev2, dev, left, right, middle); 249d7ed5d88SUlrich Dangel 2501da177e4SLinus Torvalds input_sync(dev2); 2511da177e4SLinus Torvalds return; 2521da177e4SLinus Torvalds } 2531da177e4SLinus Torvalds 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 305036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 306036e6c7bSHans de Goede struct alps_bitmap_point *low, 307036e6c7bSHans de Goede struct alps_bitmap_point *high, 308036e6c7bSHans de Goede int *fingers) 309036e6c7bSHans de Goede { 310036e6c7bSHans de Goede struct alps_bitmap_point *point; 311036e6c7bSHans de Goede int i, bit, prev_bit = 0; 312036e6c7bSHans de Goede 313036e6c7bSHans de Goede point = low; 314036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 315036e6c7bSHans de Goede bit = map & 1; 316036e6c7bSHans de Goede if (bit) { 317036e6c7bSHans de Goede if (!prev_bit) { 318036e6c7bSHans de Goede point->start_bit = i; 319105affbfSHans de Goede point->num_bits = 0; 320036e6c7bSHans de Goede (*fingers)++; 321036e6c7bSHans de Goede } 322036e6c7bSHans de Goede point->num_bits++; 323036e6c7bSHans de Goede } else { 324036e6c7bSHans de Goede if (prev_bit) 325036e6c7bSHans de Goede point = high; 326036e6c7bSHans de Goede } 327036e6c7bSHans de Goede prev_bit = bit; 328036e6c7bSHans de Goede } 329036e6c7bSHans de Goede } 330036e6c7bSHans de Goede 331ee65d4b3SYunkang Tang /* 332dccf1dd8SHans de Goede * Process bitmap data from semi-mt protocols. Returns the number of 33301ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 33401ce661fSSeth Forshee * bitmaps was empty. 33501ce661fSSeth Forshee * 33601ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 33701ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 33802d04254SHans de Goede * These points are returned in fields->mt when the return value 33901ce661fSSeth Forshee * is greater than 0. 34001ce661fSSeth Forshee */ 3417a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 34202d04254SHans de Goede struct alps_fields *fields) 34301ce661fSSeth Forshee { 3444dd26573SHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers, closest; 34501ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 34601ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 3474dd26573SHans de Goede struct input_mt_pos corner[4]; 34801ce661fSSeth Forshee 34902d04254SHans de Goede if (!fields->x_map || !fields->y_map) 35001ce661fSSeth Forshee return 0; 35101ce661fSSeth Forshee 35202d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 35302d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 35401ce661fSSeth Forshee 35501ce661fSSeth Forshee /* 35601ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 35701ce661fSSeth Forshee * on either axis as the finger count. 35801ce661fSSeth Forshee */ 35901ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 36001ce661fSSeth Forshee 36101ce661fSSeth Forshee /* 36220bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 36320bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 36401ce661fSSeth Forshee */ 36501ce661fSSeth Forshee if (fingers_x == 1) { 36628835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 36701ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 36801ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 36901ce661fSSeth Forshee x_high.num_bits = max(i, 1); 37020bea68bSHans de Goede } 37120bea68bSHans de Goede if (fingers_y == 1) { 37228835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 37301ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 37401ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 37501ce661fSSeth Forshee y_high.num_bits = max(i, 1); 37601ce661fSSeth Forshee } 37701ce661fSSeth Forshee 3784dd26573SHans de Goede /* top-left corner */ 3794dd26573SHans de Goede corner[0].x = 38002d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 3817a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 3824dd26573SHans de Goede corner[0].y = 38302d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 3847a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 38501ce661fSSeth Forshee 3864dd26573SHans de Goede /* top-right corner */ 3874dd26573SHans de Goede corner[1].x = 38802d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 3897a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 3904dd26573SHans de Goede corner[1].y = 3914dd26573SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 3924dd26573SHans de Goede (2 * (priv->y_bits - 1)); 3934dd26573SHans de Goede 3944dd26573SHans de Goede /* bottom-right corner */ 3954dd26573SHans de Goede corner[2].x = 3964dd26573SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 3974dd26573SHans de Goede (2 * (priv->x_bits - 1)); 3984dd26573SHans de Goede corner[2].y = 3994dd26573SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4004dd26573SHans de Goede (2 * (priv->y_bits - 1)); 4014dd26573SHans de Goede 4024dd26573SHans de Goede /* bottom-left corner */ 4034dd26573SHans de Goede corner[3].x = 4044dd26573SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4054dd26573SHans de Goede (2 * (priv->x_bits - 1)); 4064dd26573SHans de Goede corner[3].y = 40702d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4087a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 40901ce661fSSeth Forshee 410dccf1dd8SHans de Goede /* x-bitmap order is reversed on v5 touchpads */ 411dccf1dd8SHans de Goede if (priv->proto_version == ALPS_PROTO_V5) { 412dccf1dd8SHans de Goede for (i = 0; i < 4; i++) 413dccf1dd8SHans de Goede corner[i].x = priv->x_max - corner[i].x; 414dccf1dd8SHans de Goede } 415dccf1dd8SHans de Goede 416dccf1dd8SHans de Goede /* y-bitmap order is reversed on v3 and v4 touchpads */ 417dccf1dd8SHans de Goede if (priv->proto_version == ALPS_PROTO_V3 || 418dccf1dd8SHans de Goede priv->proto_version == ALPS_PROTO_V4) { 4194dd26573SHans de Goede for (i = 0; i < 4; i++) 4204dd26573SHans de Goede corner[i].y = priv->y_max - corner[i].y; 42140e8f53bSHans de Goede } 42240e8f53bSHans de Goede 4234dd26573SHans de Goede /* 4244dd26573SHans de Goede * We only select a corner for the second touch once per 2 finger 4254dd26573SHans de Goede * touch sequence to avoid the chosen corner (and thus the coordinates) 4264dd26573SHans de Goede * jumping around when the first touch is in the middle. 4274dd26573SHans de Goede */ 4284dd26573SHans de Goede if (priv->second_touch == -1) { 4294dd26573SHans de Goede /* Find corner closest to our st coordinates */ 4304dd26573SHans de Goede closest = 0x7fffffff; 4314dd26573SHans de Goede for (i = 0; i < 4; i++) { 4324dd26573SHans de Goede int dx = fields->st.x - corner[i].x; 4334dd26573SHans de Goede int dy = fields->st.y - corner[i].y; 4344dd26573SHans de Goede int distance = dx * dx + dy * dy; 4354dd26573SHans de Goede 4364dd26573SHans de Goede if (distance < closest) { 4374dd26573SHans de Goede priv->second_touch = i; 4384dd26573SHans de Goede closest = distance; 4394dd26573SHans de Goede } 4404dd26573SHans de Goede } 4414dd26573SHans de Goede /* And select the opposite corner to use for the 2nd touch */ 4424dd26573SHans de Goede priv->second_touch = (priv->second_touch + 2) % 4; 4434dd26573SHans de Goede } 4444dd26573SHans de Goede 4454dd26573SHans de Goede fields->mt[0] = fields->st; 4464dd26573SHans de Goede fields->mt[1] = corner[priv->second_touch]; 4474dd26573SHans de Goede 44801ce661fSSeth Forshee return fingers; 44901ce661fSSeth Forshee } 45001ce661fSSeth Forshee 451cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 45201ce661fSSeth Forshee { 45301ce661fSSeth Forshee input_mt_slot(dev, slot); 454cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 45501ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 45601ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 45701ce661fSSeth Forshee } 45801ce661fSSeth Forshee 459cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 46001ce661fSSeth Forshee { 46102d04254SHans de Goede struct alps_data *priv = psmouse->private; 46202d04254SHans de Goede struct input_dev *dev = psmouse->dev; 46302d04254SHans de Goede struct alps_fields *f = &priv->f; 464cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 46502d04254SHans de Goede 466448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 467cdf333efSHans de Goede for (i = 0; i < n; i++) 468cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 469cdf333efSHans de Goede 470cdf333efSHans de Goede input_mt_sync_frame(dev); 47101ce661fSSeth Forshee } 47201ce661fSSeth Forshee 47368c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 47468c21870SHans de Goede { 47568c21870SHans de Goede struct alps_data *priv = psmouse->private; 47668c21870SHans de Goede struct input_dev *dev = psmouse->dev; 47768c21870SHans de Goede struct alps_fields *f = &priv->f; 47868c21870SHans de Goede 47968c21870SHans de Goede /* Use st data when we don't have mt data */ 48068c21870SHans de Goede if (fingers < 2) { 48168c21870SHans de Goede f->mt[0].x = f->st.x; 48268c21870SHans de Goede f->mt[0].y = f->st.y; 48368c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 4844dd26573SHans de Goede priv->second_touch = -1; 48568c21870SHans de Goede } 48668c21870SHans de Goede 4871662c033SHans de Goede if (fingers >= 1) 4881662c033SHans de Goede alps_set_slot(dev, 0, f->mt[0].x, f->mt[0].y); 4891662c033SHans de Goede if (fingers >= 2) 4901662c033SHans de Goede alps_set_slot(dev, 1, f->mt[1].x, f->mt[1].y); 4911662c033SHans de Goede input_mt_sync_frame(dev); 49268c21870SHans de Goede 49368c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 49468c21870SHans de Goede 49568c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 49668c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 49768c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 49868c21870SHans de Goede 49968c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 50068c21870SHans de Goede 50168c21870SHans de Goede input_sync(dev); 50268c21870SHans de Goede } 50368c21870SHans de Goede 50425bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 50525bded7cSSeth Forshee { 50625bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 50725bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 50825bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 50925bded7cSSeth Forshee int x, y, z, left, right, middle; 51025bded7cSSeth Forshee 51134412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 51234412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 51334412ba2SPali Rohár psmouse_warn(psmouse, 51434412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 51534412ba2SPali Rohár return; 51634412ba2SPali Rohár } 51734412ba2SPali Rohár 51825bded7cSSeth Forshee /* Sanity check packet */ 51925bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 52025bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 52125bded7cSSeth Forshee return; 52225bded7cSSeth Forshee } 52325bded7cSSeth Forshee 52425bded7cSSeth Forshee /* 52525bded7cSSeth Forshee * There's a special packet that seems to indicate the end 52625bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 52725bded7cSSeth Forshee */ 52825bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 52925bded7cSSeth Forshee return; 53025bded7cSSeth Forshee 53125bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 53225bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 53325bded7cSSeth Forshee z = (packet[4] & 0x7c) >> 2; 53425bded7cSSeth Forshee 53525bded7cSSeth Forshee /* 53625bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 53725bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 53825bded7cSSeth Forshee * to compensate. 53925bded7cSSeth Forshee */ 54025bded7cSSeth Forshee x /= 8; 54125bded7cSSeth Forshee y /= 8; 54225bded7cSSeth Forshee 54325bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 54425bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 54525bded7cSSeth Forshee 54625bded7cSSeth Forshee /* 54725bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 54825bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 54925bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 55025bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 55125bded7cSSeth Forshee * packet. 55225bded7cSSeth Forshee */ 55325bded7cSSeth Forshee left = packet[3] & 0x01; 55425bded7cSSeth Forshee right = packet[3] & 0x02; 55525bded7cSSeth Forshee middle = packet[3] & 0x04; 55625bded7cSSeth Forshee 55725bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 55825bded7cSSeth Forshee (left || right || middle)) 55925bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 56025bded7cSSeth Forshee 56125bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 56225bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 56325bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 56425bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 56525bded7cSSeth Forshee } 56625bded7cSSeth Forshee 56725bded7cSSeth Forshee input_sync(dev); 56825bded7cSSeth Forshee return; 56925bded7cSSeth Forshee } 57025bded7cSSeth Forshee 571f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 572f85e5001SKevin Cernekee { 573f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 574f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 575f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 576f85e5001SKevin Cernekee 577f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 578f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 579f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 580f85e5001SKevin Cernekee } 581f85e5001SKevin Cernekee 58238c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 583ee65d4b3SYunkang Tang struct psmouse *psmouse) 584f85e5001SKevin Cernekee { 585f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 586f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 587f85e5001SKevin Cernekee 588a839cd57SHans de Goede if (f->is_mp) { 589f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 590f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 591f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 592f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 593f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 594f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 595f85e5001SKevin Cernekee (p[4] & 0x01); 596a839cd57SHans de Goede } else { 59702d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 598f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 59902d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 60002d04254SHans de Goede f->pressure = p[5] & 0x7f; 601f85e5001SKevin Cernekee 602f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 603a839cd57SHans de Goede } 60438c11eaaSHans de Goede 60538c11eaaSHans de Goede return 0; 606f85e5001SKevin Cernekee } 607f85e5001SKevin Cernekee 60838c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 609ee65d4b3SYunkang Tang struct psmouse *psmouse) 6101302bac3SKevin Cernekee { 611aab9cf7bSHans de Goede f->first_mp = !!(p[4] & 0x40); 612f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 613aab9cf7bSHans de Goede 614a839cd57SHans de Goede if (f->is_mp) { 615f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 616aab9cf7bSHans de Goede f->x_map = ((p[5] & 0x10) << 11) | 617aab9cf7bSHans de Goede ((p[4] & 0x7e) << 8) | 618aab9cf7bSHans de Goede ((p[1] & 0x7f) << 2) | 619aab9cf7bSHans de Goede ((p[0] & 0x30) >> 4); 620aab9cf7bSHans de Goede f->y_map = ((p[5] & 0x20) << 6) | 621aab9cf7bSHans de Goede ((p[3] & 0x70) << 4) | 622aab9cf7bSHans de Goede ((p[2] & 0x7f) << 1) | 623aab9cf7bSHans de Goede (p[4] & 0x01); 624a839cd57SHans de Goede } else { 625aab9cf7bSHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 626aab9cf7bSHans de Goede ((p[0] & 0x30) >> 4); 627aab9cf7bSHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 628aab9cf7bSHans de Goede f->pressure = p[5] & 0x7f; 629aab9cf7bSHans de Goede 630aab9cf7bSHans de Goede alps_decode_buttons_v3(f, p); 631a839cd57SHans de Goede } 63238c11eaaSHans de Goede 63338c11eaaSHans de Goede return 0; 6341302bac3SKevin Cernekee } 6351302bac3SKevin Cernekee 63638c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 637ee65d4b3SYunkang Tang struct psmouse *psmouse) 63875af9e56SDave Turvene { 639ee65d4b3SYunkang Tang u64 palm_data = 0; 640ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 641ee65d4b3SYunkang Tang 64275af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 64375af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 64475af9e56SDave Turvene 645ee65d4b3SYunkang Tang if (!f->is_mp) { 64602d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 64702d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 64802d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 64975af9e56SDave Turvene alps_decode_buttons_v3(f, p); 650ee65d4b3SYunkang Tang } else { 651ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 652ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 653ee65d4b3SYunkang Tang 654ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 655ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 656ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 657ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 658ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 659ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 660ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 661ee65d4b3SYunkang Tang 662ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 663ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 664ee65d4b3SYunkang Tang 665ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 666ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 667ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 668ee65d4b3SYunkang Tang } 66938c11eaaSHans de Goede 67038c11eaaSHans de Goede return 0; 67175af9e56SDave Turvene } 67275af9e56SDave Turvene 673ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 67425bded7cSSeth Forshee { 67525bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 67625bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 67725bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 67802d04254SHans de Goede struct alps_fields *f = &priv->f; 67902d04254SHans de Goede int fingers = 0; 680f85e5001SKevin Cernekee 68102d04254SHans de Goede memset(f, 0, sizeof(*f)); 68202d04254SHans de Goede 68302d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 68425bded7cSSeth Forshee 68525bded7cSSeth Forshee /* 68601ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 68701ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 68801ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 68901ce661fSSeth Forshee * bit 6 of packet[4] set. 69025bded7cSSeth Forshee */ 69125bded7cSSeth Forshee if (priv->multi_packet) { 69225bded7cSSeth Forshee /* 69325bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 69425bded7cSSeth Forshee * sequence, but then what follows is another position 69525bded7cSSeth Forshee * packet. Check for this, and when it happens process the 69625bded7cSSeth Forshee * position packet as usual. 69725bded7cSSeth Forshee */ 69802d04254SHans de Goede if (f->is_mp) { 69902d04254SHans de Goede fingers = f->fingers; 70044b77f38SHans de Goede /* 70144b77f38SHans de Goede * Bitmap processing uses position packet's coordinate 70244b77f38SHans de Goede * data, so we need to do decode it first. 70344b77f38SHans de Goede */ 70444b77f38SHans de Goede priv->decode_fields(f, priv->multi_data, psmouse); 70502d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 70620bea68bSHans de Goede fingers = 0; /* Use st data */ 707ee65d4b3SYunkang Tang } else { 70801ce661fSSeth Forshee priv->multi_packet = 0; 70925bded7cSSeth Forshee } 71025bded7cSSeth Forshee } 71125bded7cSSeth Forshee 71201ce661fSSeth Forshee /* 71301ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 71401ce661fSSeth Forshee * times it seems to be set is in situations where the data is 71501ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 71601ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 71701ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 71801ce661fSSeth Forshee * bit set. 71901ce661fSSeth Forshee */ 72002d04254SHans de Goede if (f->is_mp) 72101ce661fSSeth Forshee return; 72201ce661fSSeth Forshee 72302d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 72425bded7cSSeth Forshee priv->multi_packet = 1; 72501ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 72601ce661fSSeth Forshee return; 72701ce661fSSeth Forshee } 72801ce661fSSeth Forshee 72925bded7cSSeth Forshee priv->multi_packet = 0; 73025bded7cSSeth Forshee 73125bded7cSSeth Forshee /* 73225bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 73325bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 73425bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 73525bded7cSSeth Forshee * Ignore them. 73625bded7cSSeth Forshee */ 73702d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 73825bded7cSSeth Forshee return; 73925bded7cSSeth Forshee 74068c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 74125bded7cSSeth Forshee 74234412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 74334412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 74402d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 74502d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 74602d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 74725bded7cSSeth Forshee input_sync(dev2); 74825bded7cSSeth Forshee } 74925bded7cSSeth Forshee } 75025bded7cSSeth Forshee 75125bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 75225bded7cSSeth Forshee { 75325bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 75425bded7cSSeth Forshee 75525bded7cSSeth Forshee /* 75625bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 75725bded7cSSeth Forshee * touchpad data and one representing trackstick data. 75825bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 75925bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 76025bded7cSSeth Forshee * observed in the last byte of either of the other types 76125bded7cSSeth Forshee * of packets. 76225bded7cSSeth Forshee */ 76325bded7cSSeth Forshee if (packet[5] == 0x3f) { 76425bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 76525bded7cSSeth Forshee return; 76625bded7cSSeth Forshee } 76725bded7cSSeth Forshee 768ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 76925bded7cSSeth Forshee } 77025bded7cSSeth Forshee 77195f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 77295f75e91SYunkang Tang { 77395f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 77495f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 77595f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 77695f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 77795f75e91SYunkang Tang int x, y, z, left, right, middle; 77895f75e91SYunkang Tang 77995f75e91SYunkang Tang /* 78095f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 78195f75e91SYunkang Tang * or Trackpoint. 78295f75e91SYunkang Tang * Touchpad: 0 - 0x7E 78395f75e91SYunkang Tang * Trackpoint: 0x7F 78495f75e91SYunkang Tang */ 78595f75e91SYunkang Tang if (packet[5] == 0x7F) { 78695f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 78734412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 78834412ba2SPali Rohár psmouse_warn(psmouse, 78934412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 79095f75e91SYunkang Tang return; 79134412ba2SPali Rohár } 79295f75e91SYunkang Tang 79395f75e91SYunkang Tang /* Trackpoint packet */ 79495f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 79595f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 79695f75e91SYunkang Tang z = packet[4]; 79795f75e91SYunkang Tang left = packet[3] & 0x01; 79895f75e91SYunkang Tang right = packet[3] & 0x02; 79995f75e91SYunkang Tang middle = packet[3] & 0x04; 80095f75e91SYunkang Tang 80195f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 80295f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 80395f75e91SYunkang Tang x = y = z = 0; 80495f75e91SYunkang Tang 80595f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 80695f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 80795f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 80895f75e91SYunkang Tang 80995f75e91SYunkang Tang input_report_key(dev2, BTN_LEFT, left); 81095f75e91SYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 81195f75e91SYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 81295f75e91SYunkang Tang 81395f75e91SYunkang Tang input_sync(dev2); 81495f75e91SYunkang Tang return; 81595f75e91SYunkang Tang } 81695f75e91SYunkang Tang 81795f75e91SYunkang Tang /* Touchpad packet */ 81895f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 81995f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 82095f75e91SYunkang Tang z = packet[5]; 82195f75e91SYunkang Tang left = packet[3] & 0x01; 82295f75e91SYunkang Tang right = packet[3] & 0x02; 82395f75e91SYunkang Tang 82495f75e91SYunkang Tang if (z > 30) 82595f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 82695f75e91SYunkang Tang if (z < 25) 82795f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 82895f75e91SYunkang Tang 82995f75e91SYunkang Tang if (z > 0) { 83095f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 83195f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 83295f75e91SYunkang Tang } 83395f75e91SYunkang Tang 83495f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 83595f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 83695f75e91SYunkang Tang 83795f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 83895f75e91SYunkang Tang input_report_key(dev, BTN_LEFT, left); 83995f75e91SYunkang Tang input_report_key(dev, BTN_RIGHT, right); 84095f75e91SYunkang Tang 84195f75e91SYunkang Tang input_sync(dev); 84295f75e91SYunkang Tang } 84395f75e91SYunkang Tang 84425bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 84525bded7cSSeth Forshee { 8463b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 84725bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 84802d04254SHans de Goede struct alps_fields *f = &priv->f; 84968c21870SHans de Goede int offset; 8503b7e09faSGeorge Pantalos 8513b7e09faSGeorge Pantalos /* 8523b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8533b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8543b7e09faSGeorge Pantalos * track our position in the bitmap packet. 8553b7e09faSGeorge Pantalos */ 8563b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 8573b7e09faSGeorge Pantalos /* sync, reset position */ 8583b7e09faSGeorge Pantalos priv->multi_packet = 0; 8593b7e09faSGeorge Pantalos } 8603b7e09faSGeorge Pantalos 8613b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 8623b7e09faSGeorge Pantalos return; 8633b7e09faSGeorge Pantalos 8643b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 8653b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 8663b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 8673b7e09faSGeorge Pantalos 86844b77f38SHans de Goede f->left = !!(packet[4] & 0x01); 86944b77f38SHans de Goede f->right = !!(packet[4] & 0x02); 87044b77f38SHans de Goede 87144b77f38SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 87244b77f38SHans de Goede ((packet[0] & 0x30) >> 4); 87344b77f38SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 87444b77f38SHans de Goede f->pressure = packet[5] & 0x7f; 87544b77f38SHans de Goede 8763b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 8773b7e09faSGeorge Pantalos priv->multi_packet = 0; 8783b7e09faSGeorge Pantalos 87902d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 8803b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 8813b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 8823b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 88302d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 8843b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 8853b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 8863b7e09faSGeorge Pantalos 88702d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 8883b7e09faSGeorge Pantalos } 88925bded7cSSeth Forshee 89068c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 89125bded7cSSeth Forshee } 89225bded7cSSeth Forshee 8933808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 8943808843cSYunkang Tang { 8953808843cSYunkang Tang switch (psmouse->pktcnt) { 8963808843cSYunkang Tang case 3: 8973808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 8983808843cSYunkang Tang case 4: 8993808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 9003808843cSYunkang Tang case 6: 9013808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 9023808843cSYunkang Tang } 9033808843cSYunkang Tang return true; 9043808843cSYunkang Tang } 9053808843cSYunkang Tang 9063808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 9073808843cSYunkang Tang { 9083808843cSYunkang Tang unsigned char packet_id; 9093808843cSYunkang Tang 9103808843cSYunkang Tang if (byte[4] & 0x40) 9113808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 9123808843cSYunkang Tang else if (byte[4] & 0x01) 9133808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 9143808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 9153808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 9163808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 9173808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 9183808843cSYunkang Tang else 9193808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 9203808843cSYunkang Tang 9213808843cSYunkang Tang return packet_id; 9223808843cSYunkang Tang } 9233808843cSYunkang Tang 9243808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 9253808843cSYunkang Tang unsigned char *pkt, 9263808843cSYunkang Tang unsigned char pkt_id) 9273808843cSYunkang Tang { 9283808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9293808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9303808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9313808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9323808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9333808843cSYunkang Tang 9343808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9353808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9363808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9373808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9383808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9393808843cSYunkang Tang 9403808843cSYunkang Tang switch (pkt_id) { 9413808843cSYunkang Tang case V7_PACKET_ID_TWO: 9423808843cSYunkang Tang mt[1].x &= ~0x000F; 9433808843cSYunkang Tang mt[1].y |= 0x000F; 9443808843cSYunkang Tang break; 9453808843cSYunkang Tang 9463808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9473808843cSYunkang Tang mt[1].x &= ~0x003F; 9483808843cSYunkang Tang mt[1].y &= ~0x0020; 9493808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 9503808843cSYunkang Tang mt[1].y |= 0x001F; 9513808843cSYunkang Tang break; 9523808843cSYunkang Tang 9533808843cSYunkang Tang case V7_PACKET_ID_NEW: 9543808843cSYunkang Tang mt[1].x &= ~0x003F; 9553808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 9563808843cSYunkang Tang mt[1].y |= 0x000F; 9573808843cSYunkang Tang break; 9583808843cSYunkang Tang } 9593808843cSYunkang Tang 9603808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 9613808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 9623808843cSYunkang Tang } 9633808843cSYunkang Tang 9643808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 9653808843cSYunkang Tang { 9667091c443SHans de Goede int i, fingers = 0; 9673808843cSYunkang Tang 9687091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 9697091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 9707091c443SHans de Goede fingers++; 9717091c443SHans de Goede } 9723808843cSYunkang Tang 9737091c443SHans de Goede return fingers; 9743808843cSYunkang Tang } 9753808843cSYunkang Tang 9763808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 9773808843cSYunkang Tang unsigned char *p, 9783808843cSYunkang Tang struct psmouse *psmouse) 9793808843cSYunkang Tang { 980d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 9813808843cSYunkang Tang unsigned char pkt_id; 9823808843cSYunkang Tang 9833808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 9843808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 9853808843cSYunkang Tang return 0; 9863808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 9873808843cSYunkang Tang return -1; 9888b238115SHans de Goede /* 9898b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 9908b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 9918b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 9928b238115SHans de Goede * us. 9938b238115SHans de Goede * 9948b238115SHans de Goede * NEW packets have 3 problems: 9958b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 9968b238115SHans de Goede * this can be worked around by preserving the old button state 9978b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 9988b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 9998b238115SHans de Goede * the old finger count as that may mismatch with the amount of 10008b238115SHans de Goede * touch coordinates we've available in the NEW packet 10018b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 10028b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 10038b238115SHans de Goede * non NEW packet comes in 10048b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 10058b238115SHans de Goede */ 10068b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 10078b238115SHans de Goede return 1; 10083808843cSYunkang Tang 10093808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 10103808843cSYunkang Tang 10113808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 10123808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 10138b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 10143808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 10153808843cSYunkang Tang 1016d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1017d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1018d27eb793SHans de Goede if (p[0] & 0x20) 1019d27eb793SHans de Goede f->fingers++; 1020d27eb793SHans de Goede if (p[0] & 0x10) 1021d27eb793SHans de Goede f->fingers++; 1022d27eb793SHans de Goede } else { 1023d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1024d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1025d27eb793SHans de Goede } 1026d27eb793SHans de Goede 10277091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10287091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10297091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10307091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10317091c443SHans de Goede f->mt[1].x = 0; 10327091c443SHans de Goede f->mt[1].y = 0; 10337091c443SHans de Goede } 10347091c443SHans de Goede 10353808843cSYunkang Tang return 0; 10363808843cSYunkang Tang } 10373808843cSYunkang Tang 10383808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10393808843cSYunkang Tang { 10403808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10413808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10423808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10433808843cSYunkang Tang int x, y, z, left, right, middle; 10443808843cSYunkang Tang 104534412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 104634412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 104734412ba2SPali Rohár psmouse_warn(psmouse, 104834412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 104934412ba2SPali Rohár return; 105034412ba2SPali Rohár } 105134412ba2SPali Rohár 10523808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 10533808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 10543808843cSYunkang Tang ((packet[3] & 0x20) << 1); 10553808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 10563808843cSYunkang Tang 10573808843cSYunkang Tang left = (packet[1] & 0x01); 10583808843cSYunkang Tang right = (packet[1] & 0x02) >> 1; 10593808843cSYunkang Tang middle = (packet[1] & 0x04) >> 2; 10603808843cSYunkang Tang 10613808843cSYunkang Tang /* Divide 2 since trackpoint's speed is too fast */ 10623808843cSYunkang Tang input_report_rel(dev2, REL_X, (char)x / 2); 10633808843cSYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 2)); 10643808843cSYunkang Tang 10653808843cSYunkang Tang input_report_key(dev2, BTN_LEFT, left); 10663808843cSYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 10673808843cSYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 10683808843cSYunkang Tang 10693808843cSYunkang Tang input_sync(dev2); 10703808843cSYunkang Tang } 10713808843cSYunkang Tang 10723808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 10733808843cSYunkang Tang { 10743808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10753808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 10763808843cSYunkang Tang struct alps_fields *f = &priv->f; 10773808843cSYunkang Tang 10783808843cSYunkang Tang memset(f, 0, sizeof(*f)); 10793808843cSYunkang Tang 10803808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 10813808843cSYunkang Tang return; 10823808843cSYunkang Tang 10833808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 10843808843cSYunkang Tang 10853808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 10863808843cSYunkang Tang 10873808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 10883808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 10893808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 10903808843cSYunkang Tang 10913808843cSYunkang Tang input_sync(dev); 10923808843cSYunkang Tang } 10933808843cSYunkang Tang 10943808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 10953808843cSYunkang Tang { 10963808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10973808843cSYunkang Tang 10983808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 10993808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 11003808843cSYunkang Tang else 11013808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 11023808843cSYunkang Tang } 11033808843cSYunkang Tang 110407f19e3dSFengguang Wu static unsigned char alps_get_pkt_id_ss4_v2(unsigned char *byte) 11053db5b9f7SMasaki Ota { 11063db5b9f7SMasaki Ota unsigned char pkt_id = SS4_PACKET_ID_IDLE; 11073db5b9f7SMasaki Ota 11083db5b9f7SMasaki Ota if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 && 11093db5b9f7SMasaki Ota (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && byte[5] == 0x00) { 11103db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_IDLE; 11113db5b9f7SMasaki Ota } else if (!(byte[3] & 0x10)) { 11123db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_ONE; 11133db5b9f7SMasaki Ota } else if (!(byte[3] & 0x20)) { 11143db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_TWO; 11153db5b9f7SMasaki Ota } else { 11163db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_MULTI; 11173db5b9f7SMasaki Ota } 11183db5b9f7SMasaki Ota 11193db5b9f7SMasaki Ota return pkt_id; 11203db5b9f7SMasaki Ota } 11213db5b9f7SMasaki Ota 11223db5b9f7SMasaki Ota static int alps_decode_ss4_v2(struct alps_fields *f, 11233db5b9f7SMasaki Ota unsigned char *p, struct psmouse *psmouse) 11243db5b9f7SMasaki Ota { 11253db5b9f7SMasaki Ota struct alps_data *priv = psmouse->private; 11263db5b9f7SMasaki Ota unsigned char pkt_id; 11273db5b9f7SMasaki Ota unsigned int no_data_x, no_data_y; 11283db5b9f7SMasaki Ota 11293db5b9f7SMasaki Ota pkt_id = alps_get_pkt_id_ss4_v2(p); 11303db5b9f7SMasaki Ota 11313db5b9f7SMasaki Ota /* Current packet is 1Finger coordinate packet */ 11323db5b9f7SMasaki Ota switch (pkt_id) { 11333db5b9f7SMasaki Ota case SS4_PACKET_ID_ONE: 11343db5b9f7SMasaki Ota f->mt[0].x = SS4_1F_X_V2(p); 11353db5b9f7SMasaki Ota f->mt[0].y = SS4_1F_Y_V2(p); 11363db5b9f7SMasaki Ota f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f; 11373db5b9f7SMasaki Ota f->fingers = 1; 11383db5b9f7SMasaki Ota f->first_mp = 0; 11393db5b9f7SMasaki Ota f->is_mp = 0; 11403db5b9f7SMasaki Ota break; 11413db5b9f7SMasaki Ota 11423db5b9f7SMasaki Ota case SS4_PACKET_ID_TWO: 11433db5b9f7SMasaki Ota if (priv->flags & ALPS_BUTTONPAD) { 11443db5b9f7SMasaki Ota f->mt[0].x = SS4_BTL_MF_X_V2(p, 0); 11453db5b9f7SMasaki Ota f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0); 11463db5b9f7SMasaki Ota f->mt[1].x = SS4_BTL_MF_X_V2(p, 1); 11473db5b9f7SMasaki Ota f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1); 11483db5b9f7SMasaki Ota } else { 11493db5b9f7SMasaki Ota f->mt[0].x = SS4_STD_MF_X_V2(p, 0); 11503db5b9f7SMasaki Ota f->mt[0].y = SS4_STD_MF_Y_V2(p, 0); 11513db5b9f7SMasaki Ota f->mt[1].x = SS4_STD_MF_X_V2(p, 1); 11523db5b9f7SMasaki Ota f->mt[1].y = SS4_STD_MF_Y_V2(p, 1); 11533db5b9f7SMasaki Ota } 11543db5b9f7SMasaki Ota f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0; 11553db5b9f7SMasaki Ota 11563db5b9f7SMasaki Ota if (SS4_IS_MF_CONTINUE(p)) { 11573db5b9f7SMasaki Ota f->first_mp = 1; 11583db5b9f7SMasaki Ota } else { 11593db5b9f7SMasaki Ota f->fingers = 2; 11603db5b9f7SMasaki Ota f->first_mp = 0; 11613db5b9f7SMasaki Ota } 11623db5b9f7SMasaki Ota f->is_mp = 0; 11633db5b9f7SMasaki Ota 11643db5b9f7SMasaki Ota break; 11653db5b9f7SMasaki Ota 11663db5b9f7SMasaki Ota case SS4_PACKET_ID_MULTI: 11673db5b9f7SMasaki Ota if (priv->flags & ALPS_BUTTONPAD) { 11683db5b9f7SMasaki Ota f->mt[2].x = SS4_BTL_MF_X_V2(p, 0); 11693db5b9f7SMasaki Ota f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0); 11703db5b9f7SMasaki Ota f->mt[3].x = SS4_BTL_MF_X_V2(p, 1); 11713db5b9f7SMasaki Ota f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1); 11723db5b9f7SMasaki Ota no_data_x = SS4_MFPACKET_NO_AX_BL; 11733db5b9f7SMasaki Ota no_data_y = SS4_MFPACKET_NO_AY_BL; 11743db5b9f7SMasaki Ota } else { 11753db5b9f7SMasaki Ota f->mt[2].x = SS4_STD_MF_X_V2(p, 0); 11763db5b9f7SMasaki Ota f->mt[2].y = SS4_STD_MF_Y_V2(p, 0); 11773db5b9f7SMasaki Ota f->mt[3].x = SS4_STD_MF_X_V2(p, 1); 11783db5b9f7SMasaki Ota f->mt[3].y = SS4_STD_MF_Y_V2(p, 1); 11793db5b9f7SMasaki Ota no_data_x = SS4_MFPACKET_NO_AX; 11803db5b9f7SMasaki Ota no_data_y = SS4_MFPACKET_NO_AY; 11813db5b9f7SMasaki Ota } 11823db5b9f7SMasaki Ota 11833db5b9f7SMasaki Ota f->first_mp = 0; 11843db5b9f7SMasaki Ota f->is_mp = 1; 11853db5b9f7SMasaki Ota 11863db5b9f7SMasaki Ota if (SS4_IS_5F_DETECTED(p)) { 11873db5b9f7SMasaki Ota f->fingers = 5; 11883db5b9f7SMasaki Ota } else if (f->mt[3].x == no_data_x && 11893db5b9f7SMasaki Ota f->mt[3].y == no_data_y) { 11903db5b9f7SMasaki Ota f->mt[3].x = 0; 11913db5b9f7SMasaki Ota f->mt[3].y = 0; 11923db5b9f7SMasaki Ota f->fingers = 3; 11933db5b9f7SMasaki Ota } else { 11943db5b9f7SMasaki Ota f->fingers = 4; 11953db5b9f7SMasaki Ota } 11963db5b9f7SMasaki Ota break; 11973db5b9f7SMasaki Ota 11983db5b9f7SMasaki Ota case SS4_PACKET_ID_IDLE: 11993db5b9f7SMasaki Ota default: 12003db5b9f7SMasaki Ota memset(f, 0, sizeof(struct alps_fields)); 12013db5b9f7SMasaki Ota break; 12023db5b9f7SMasaki Ota } 12033db5b9f7SMasaki Ota 12043db5b9f7SMasaki Ota f->left = !!(SS4_BTN_V2(p) & 0x01); 12053db5b9f7SMasaki Ota if (!(priv->flags & ALPS_BUTTONPAD)) { 12063db5b9f7SMasaki Ota f->right = !!(SS4_BTN_V2(p) & 0x02); 12073db5b9f7SMasaki Ota f->middle = !!(SS4_BTN_V2(p) & 0x04); 12083db5b9f7SMasaki Ota } 12093db5b9f7SMasaki Ota 12103db5b9f7SMasaki Ota return 0; 12113db5b9f7SMasaki Ota } 12123db5b9f7SMasaki Ota 12133db5b9f7SMasaki Ota static void alps_process_packet_ss4_v2(struct psmouse *psmouse) 12143db5b9f7SMasaki Ota { 12153db5b9f7SMasaki Ota struct alps_data *priv = psmouse->private; 12163db5b9f7SMasaki Ota unsigned char *packet = psmouse->packet; 12173db5b9f7SMasaki Ota struct input_dev *dev = psmouse->dev; 12183db5b9f7SMasaki Ota struct alps_fields *f = &priv->f; 12193db5b9f7SMasaki Ota 12203db5b9f7SMasaki Ota memset(f, 0, sizeof(struct alps_fields)); 12213db5b9f7SMasaki Ota priv->decode_fields(f, packet, psmouse); 12223db5b9f7SMasaki Ota if (priv->multi_packet) { 12233db5b9f7SMasaki Ota /* 12243db5b9f7SMasaki Ota * Sometimes the first packet will indicate a multi-packet 12253db5b9f7SMasaki Ota * sequence, but sometimes the next multi-packet would not 12263db5b9f7SMasaki Ota * come. Check for this, and when it happens process the 12273db5b9f7SMasaki Ota * position packet as usual. 12283db5b9f7SMasaki Ota */ 12293db5b9f7SMasaki Ota if (f->is_mp) { 12303db5b9f7SMasaki Ota /* Now process the 1st packet */ 12313db5b9f7SMasaki Ota priv->decode_fields(f, priv->multi_data, psmouse); 12323db5b9f7SMasaki Ota } else { 12333db5b9f7SMasaki Ota priv->multi_packet = 0; 12343db5b9f7SMasaki Ota } 12353db5b9f7SMasaki Ota } 12363db5b9f7SMasaki Ota 12373db5b9f7SMasaki Ota /* 12383db5b9f7SMasaki Ota * "f.is_mp" would always be '0' after merging the 1st and 2nd packet. 12393db5b9f7SMasaki Ota * When it is set, it means 2nd packet comes without 1st packet come. 12403db5b9f7SMasaki Ota */ 12413db5b9f7SMasaki Ota if (f->is_mp) 12423db5b9f7SMasaki Ota return; 12433db5b9f7SMasaki Ota 12443db5b9f7SMasaki Ota /* Save the first packet */ 12453db5b9f7SMasaki Ota if (!priv->multi_packet && f->first_mp) { 12463db5b9f7SMasaki Ota priv->multi_packet = 1; 12473db5b9f7SMasaki Ota memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 12483db5b9f7SMasaki Ota return; 12493db5b9f7SMasaki Ota } 12503db5b9f7SMasaki Ota 12513db5b9f7SMasaki Ota priv->multi_packet = 0; 12523db5b9f7SMasaki Ota 12533db5b9f7SMasaki Ota alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4); 12543db5b9f7SMasaki Ota 12553db5b9f7SMasaki Ota input_mt_report_finger_count(dev, f->fingers); 12563db5b9f7SMasaki Ota 12573db5b9f7SMasaki Ota input_report_key(dev, BTN_LEFT, f->left); 12583db5b9f7SMasaki Ota input_report_key(dev, BTN_RIGHT, f->right); 12593db5b9f7SMasaki Ota input_report_key(dev, BTN_MIDDLE, f->middle); 12603db5b9f7SMasaki Ota 12613db5b9f7SMasaki Ota input_report_abs(dev, ABS_PRESSURE, f->pressure); 12623db5b9f7SMasaki Ota input_sync(dev); 12633db5b9f7SMasaki Ota } 12643db5b9f7SMasaki Ota 12653db5b9f7SMasaki Ota static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) 12663db5b9f7SMasaki Ota { 12673db5b9f7SMasaki Ota if (psmouse->pktcnt == 4 && ((psmouse->packet[3] & 0x08) != 0x08)) 12683db5b9f7SMasaki Ota return false; 12693db5b9f7SMasaki Ota if (psmouse->pktcnt == 6 && ((psmouse->packet[5] & 0x10) != 0x0)) 12703db5b9f7SMasaki Ota return false; 12713db5b9f7SMasaki Ota return true; 12723db5b9f7SMasaki Ota } 12733db5b9f7SMasaki Ota 127404aae283SPali Rohár static DEFINE_MUTEX(alps_mutex); 127504aae283SPali Rohár 127604aae283SPali Rohár static void alps_register_bare_ps2_mouse(struct work_struct *work) 127704aae283SPali Rohár { 127804aae283SPali Rohár struct alps_data *priv = 127904aae283SPali Rohár container_of(work, struct alps_data, dev3_register_work.work); 128004aae283SPali Rohár struct psmouse *psmouse = priv->psmouse; 128104aae283SPali Rohár struct input_dev *dev3; 128204aae283SPali Rohár int error = 0; 128304aae283SPali Rohár 128404aae283SPali Rohár mutex_lock(&alps_mutex); 128504aae283SPali Rohár 128604aae283SPali Rohár if (priv->dev3) 128704aae283SPali Rohár goto out; 128804aae283SPali Rohár 128904aae283SPali Rohár dev3 = input_allocate_device(); 129004aae283SPali Rohár if (!dev3) { 129104aae283SPali Rohár psmouse_err(psmouse, "failed to allocate secondary device\n"); 129204aae283SPali Rohár error = -ENOMEM; 129304aae283SPali Rohár goto out; 129404aae283SPali Rohár } 129504aae283SPali Rohár 129604aae283SPali Rohár snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s", 129704aae283SPali Rohár psmouse->ps2dev.serio->phys, 129804aae283SPali Rohár (priv->dev2 ? "input2" : "input1")); 129904aae283SPali Rohár dev3->phys = priv->phys3; 130004aae283SPali Rohár 130104aae283SPali Rohár /* 130204aae283SPali Rohár * format of input device name is: "protocol vendor name" 130304aae283SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 130404aae283SPali Rohár */ 130504aae283SPali Rohár dev3->name = "PS/2 ALPS Mouse"; 130604aae283SPali Rohár 130704aae283SPali Rohár dev3->id.bustype = BUS_I8042; 130804aae283SPali Rohár dev3->id.vendor = 0x0002; 130904aae283SPali Rohár dev3->id.product = PSMOUSE_PS2; 131004aae283SPali Rohár dev3->id.version = 0x0000; 131104aae283SPali Rohár dev3->dev.parent = &psmouse->ps2dev.serio->dev; 131204aae283SPali Rohár 131304aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_X); 131404aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_Y); 131504aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_LEFT); 131604aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_RIGHT); 131704aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_MIDDLE); 131804aae283SPali Rohár 131904aae283SPali Rohár __set_bit(INPUT_PROP_POINTER, dev3->propbit); 132004aae283SPali Rohár 132104aae283SPali Rohár error = input_register_device(dev3); 132204aae283SPali Rohár if (error) { 132304aae283SPali Rohár psmouse_err(psmouse, 132404aae283SPali Rohár "failed to register secondary device: %d\n", 132504aae283SPali Rohár error); 132604aae283SPali Rohár input_free_device(dev3); 132704aae283SPali Rohár goto out; 132804aae283SPali Rohár } 132904aae283SPali Rohár 133004aae283SPali Rohár priv->dev3 = dev3; 133104aae283SPali Rohár 133204aae283SPali Rohár out: 133304aae283SPali Rohár /* 133404aae283SPali Rohár * Save the error code so that we can detect that we 133504aae283SPali Rohár * already tried to create the device. 133604aae283SPali Rohár */ 133704aae283SPali Rohár if (error) 133804aae283SPali Rohár priv->dev3 = ERR_PTR(error); 133904aae283SPali Rohár 134004aae283SPali Rohár mutex_unlock(&alps_mutex); 134104aae283SPali Rohár } 134204aae283SPali Rohár 134359c30afbSHans de Goede static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 13441d9f2626SSebastian Kapfer unsigned char packet[], 13451d9f2626SSebastian Kapfer bool report_buttons) 13461d9f2626SSebastian Kapfer { 134759c30afbSHans de Goede struct alps_data *priv = psmouse->private; 134859c30afbSHans de Goede struct input_dev *dev; 134959c30afbSHans de Goede 1350e3a79212SHans de Goede /* Figure out which device to use to report the bare packet */ 1351e3a79212SHans de Goede if (priv->proto_version == ALPS_PROTO_V2 && 1352e3a79212SHans de Goede (priv->flags & ALPS_DUALPOINT)) { 1353e3a79212SHans de Goede /* On V2 devices the DualPoint Stick reports bare packets */ 1354e3a79212SHans de Goede dev = priv->dev2; 1355e3a79212SHans de Goede } else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) { 135659c30afbSHans de Goede /* Register dev3 mouse if we received PS/2 packet first time */ 135759c30afbSHans de Goede if (!IS_ERR(priv->dev3)) 135859c30afbSHans de Goede psmouse_queue_work(psmouse, &priv->dev3_register_work, 135959c30afbSHans de Goede 0); 136059c30afbSHans de Goede return; 136159c30afbSHans de Goede } else { 136259c30afbSHans de Goede dev = priv->dev3; 136359c30afbSHans de Goede } 136459c30afbSHans de Goede 13651d9f2626SSebastian Kapfer if (report_buttons) 136604aae283SPali Rohár alps_report_buttons(dev, NULL, 13671d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 13681d9f2626SSebastian Kapfer 136904aae283SPali Rohár input_report_rel(dev, REL_X, 13701d9f2626SSebastian Kapfer packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 137104aae283SPali Rohár input_report_rel(dev, REL_Y, 13721d9f2626SSebastian Kapfer packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 13731d9f2626SSebastian Kapfer 137404aae283SPali Rohár input_sync(dev); 13751d9f2626SSebastian Kapfer } 13761d9f2626SSebastian Kapfer 13771d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 13781da177e4SLinus Torvalds { 13791da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 13801da177e4SLinus Torvalds 13811d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 13821d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 13831d9f2626SSebastian Kapfer 13841d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 13851d9f2626SSebastian Kapfer /* 13861d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 13871d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 13881d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 13891d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 13901d9f2626SSebastian Kapfer */ 13911d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 13921d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 13931d9f2626SSebastian Kapfer } 13941d9f2626SSebastian Kapfer 13951d9f2626SSebastian Kapfer del_timer(&priv->timer); 13961d9f2626SSebastian Kapfer 13971d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 13981d9f2626SSebastian Kapfer 13991d9f2626SSebastian Kapfer /* 14001d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 14011d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 14021d9f2626SSebastian Kapfer * next packet or we got garbage. 14031d9f2626SSebastian Kapfer */ 14041d9f2626SSebastian Kapfer 14051d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 14061d9f2626SSebastian Kapfer psmouse->packet[4] | 14071d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 140899df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1409b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 14103b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 14113b112923SAndy Shevchenko psmouse->packet + 3); 14121d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 14131d9f2626SSebastian Kapfer } 14141d9f2626SSebastian Kapfer 141524af5cb9SKevin Cernekee priv->process_packet(psmouse); 14161d9f2626SSebastian Kapfer 14171d9f2626SSebastian Kapfer /* Continue with the next packet */ 14181d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 14191d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 14201d9f2626SSebastian Kapfer 14211d9f2626SSebastian Kapfer } else { 14221d9f2626SSebastian Kapfer 14231d9f2626SSebastian Kapfer /* 14241d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 14251d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 14261d9f2626SSebastian Kapfer * 14271d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 14281d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 14291d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1430b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 14311d9f2626SSebastian Kapfer * normal operation (user would need to press all 14321d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 14331d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 14341d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 14351d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1436b5d21704SDmitry Torokhov * de-synchronization. 14371d9f2626SSebastian Kapfer */ 14381d9f2626SSebastian Kapfer 143959c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 144059c30afbSHans de Goede false); 14411d9f2626SSebastian Kapfer 14421d9f2626SSebastian Kapfer /* 14431d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 14441d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 14451d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 14461d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 14471d9f2626SSebastian Kapfer * is normally 1. 14481d9f2626SSebastian Kapfer */ 14491d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 14501d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 14511d9f2626SSebastian Kapfer } 14521d9f2626SSebastian Kapfer 14531d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 14541d9f2626SSebastian Kapfer } 14551d9f2626SSebastian Kapfer 14561d9f2626SSebastian Kapfer static void alps_flush_packet(unsigned long data) 14571d9f2626SSebastian Kapfer { 14581d9f2626SSebastian Kapfer struct psmouse *psmouse = (struct psmouse *)data; 145924af5cb9SKevin Cernekee struct alps_data *priv = psmouse->private; 14601d9f2626SSebastian Kapfer 14611d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 14621d9f2626SSebastian Kapfer 1463b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 14641d9f2626SSebastian Kapfer 14651d9f2626SSebastian Kapfer /* 14661d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 14671d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 14681d9f2626SSebastian Kapfer * ALPS packet. 14691d9f2626SSebastian Kapfer */ 14701d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 14711d9f2626SSebastian Kapfer psmouse->packet[4] | 14721d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1473b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 14743b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 14753b112923SAndy Shevchenko psmouse->packet + 3); 14761d9f2626SSebastian Kapfer } else { 147724af5cb9SKevin Cernekee priv->process_packet(psmouse); 14781d9f2626SSebastian Kapfer } 14791d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 14801d9f2626SSebastian Kapfer } 14811d9f2626SSebastian Kapfer 14821d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 14831d9f2626SSebastian Kapfer } 14841d9f2626SSebastian Kapfer 14851d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 14861d9f2626SSebastian Kapfer { 14871d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 14881d9f2626SSebastian Kapfer 14894ab8f7f3SPali Rohár /* 14904ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 14914ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 14924ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 14934ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 14943db5b9f7SMasaki Ota * Can not distinguish V8's first byte from PS/2 packet's 14954ab8f7f3SPali Rohár */ 14963db5b9f7SMasaki Ota if (priv->proto_version != ALPS_PROTO_V8 && 14973db5b9f7SMasaki Ota !psmouse->out_of_sync_cnt && 14983db5b9f7SMasaki Ota (psmouse->packet[0] & 0xc8) == 0x08) { 14993db5b9f7SMasaki Ota 15001da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 150159c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, psmouse->packet, 15021d9f2626SSebastian Kapfer true); 15031da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 15041da177e4SLinus Torvalds } 15051da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 15081d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 15091d9f2626SSebastian Kapfer 151099df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 15111d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 15121d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 15131d9f2626SSebastian Kapfer } 15141d9f2626SSebastian Kapfer 151599df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1516b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1517b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 151899df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 15191da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 15201d9f2626SSebastian Kapfer } 15211da177e4SLinus Torvalds 1522b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1523a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 152475af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 15251d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1526b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1527b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1528b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1529a7ef82aeSPali Rohár 1530fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && 1531a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1532a7ef82aeSPali Rohár /* 1533a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1534a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1535a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1536a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1537a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1538a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1539a7ef82aeSPali Rohár * filling the logs. 1540a7ef82aeSPali Rohár */ 1541a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1542a7ef82aeSPali Rohár } 1543a7ef82aeSPali Rohár 15441da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 15451d9f2626SSebastian Kapfer } 15461da177e4SLinus Torvalds 15473db5b9f7SMasaki Ota if ((priv->proto_version == ALPS_PROTO_V7 && 15483db5b9f7SMasaki Ota !alps_is_valid_package_v7(psmouse)) || 15493db5b9f7SMasaki Ota (priv->proto_version == ALPS_PROTO_V8 && 15503db5b9f7SMasaki Ota !alps_is_valid_package_ss4_v2(psmouse))) { 15513808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 15523808843cSYunkang Tang psmouse->pktcnt - 1, 15533808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 15543808843cSYunkang Tang return PSMOUSE_BAD_DATA; 15553808843cSYunkang Tang } 15563808843cSYunkang Tang 1557b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 155824af5cb9SKevin Cernekee priv->process_packet(psmouse); 15591da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 15601da177e4SLinus Torvalds } 15611da177e4SLinus Torvalds 15621da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 15631da177e4SLinus Torvalds } 15641da177e4SLinus Torvalds 156525bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 156625bded7cSSeth Forshee { 156725bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 156825bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 156925bded7cSSeth Forshee int command; 157025bded7cSSeth Forshee unsigned char *param; 157125bded7cSSeth Forshee unsigned char dummy[4]; 157225bded7cSSeth Forshee 157325bded7cSSeth Forshee BUG_ON(nibble > 0xf); 157425bded7cSSeth Forshee 157525bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 157625bded7cSSeth Forshee param = (command & 0x0f00) ? 157725bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 157825bded7cSSeth Forshee 157925bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 158025bded7cSSeth Forshee return -1; 158125bded7cSSeth Forshee 158225bded7cSSeth Forshee return 0; 158325bded7cSSeth Forshee } 158425bded7cSSeth Forshee 158525bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 158625bded7cSSeth Forshee { 158725bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 158825bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 158925bded7cSSeth Forshee int i, nibble; 159025bded7cSSeth Forshee 159125bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 159225bded7cSSeth Forshee return -1; 159325bded7cSSeth Forshee 159425bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 159525bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 159625bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 159725bded7cSSeth Forshee return -1; 159825bded7cSSeth Forshee } 159925bded7cSSeth Forshee 160025bded7cSSeth Forshee return 0; 160125bded7cSSeth Forshee } 160225bded7cSSeth Forshee 160325bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 160425bded7cSSeth Forshee { 160525bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 160625bded7cSSeth Forshee unsigned char param[4]; 160725bded7cSSeth Forshee 160825bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 160925bded7cSSeth Forshee return -1; 161025bded7cSSeth Forshee 161125bded7cSSeth Forshee /* 161225bded7cSSeth Forshee * The address being read is returned in the first two bytes 161325bded7cSSeth Forshee * of the result. Check that this address matches the expected 161425bded7cSSeth Forshee * address. 161525bded7cSSeth Forshee */ 161625bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 161725bded7cSSeth Forshee return -1; 161825bded7cSSeth Forshee 161925bded7cSSeth Forshee return param[2]; 162025bded7cSSeth Forshee } 162125bded7cSSeth Forshee 162225bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 162325bded7cSSeth Forshee { 162425bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 162525bded7cSSeth Forshee return -1; 162625bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 162725bded7cSSeth Forshee } 162825bded7cSSeth Forshee 162925bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 163025bded7cSSeth Forshee { 163125bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 163225bded7cSSeth Forshee return -1; 163325bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 163425bded7cSSeth Forshee return -1; 163525bded7cSSeth Forshee return 0; 163625bded7cSSeth Forshee } 163725bded7cSSeth Forshee 163825bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 163925bded7cSSeth Forshee u8 value) 164025bded7cSSeth Forshee { 164125bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 164225bded7cSSeth Forshee return -1; 164325bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 164425bded7cSSeth Forshee } 164525bded7cSSeth Forshee 164624ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 164724ba9707SKevin Cernekee int repeated_command, unsigned char *param) 164824ba9707SKevin Cernekee { 164924ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 165024ba9707SKevin Cernekee 165124ba9707SKevin Cernekee param[0] = 0; 165224ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 165324ba9707SKevin Cernekee return -EIO; 165424ba9707SKevin Cernekee 165524ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 165624ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 165724ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 165824ba9707SKevin Cernekee return -EIO; 165924ba9707SKevin Cernekee 166024ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 166124ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 166224ba9707SKevin Cernekee return -EIO; 166324ba9707SKevin Cernekee 166439fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 166539fbe585SDmitry Torokhov repeated_command, param); 166624ba9707SKevin Cernekee return 0; 166724ba9707SKevin Cernekee } 166824ba9707SKevin Cernekee 16693808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 16703808843cSYunkang Tang { 16713808843cSYunkang Tang if (id[0] == 0x73) 16723808843cSYunkang Tang return true; 16733808843cSYunkang Tang 16743808843cSYunkang Tang if (id[0] == 0x88 && 16753808843cSYunkang Tang (id[1] == 0x07 || 16763808843cSYunkang Tang id[1] == 0x08 || 16773808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 16783808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 16793808843cSYunkang Tang return true; 16803808843cSYunkang Tang } 16813808843cSYunkang Tang 16823808843cSYunkang Tang return false; 16833808843cSYunkang Tang } 16843808843cSYunkang Tang 1685d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 168625bded7cSSeth Forshee { 168725bded7cSSeth Forshee unsigned char param[4]; 168825bded7cSSeth Forshee 168924ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 169025bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 169125bded7cSSeth Forshee return -1; 169225bded7cSSeth Forshee } 169325bded7cSSeth Forshee 16943808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 169525bded7cSSeth Forshee psmouse_dbg(psmouse, 169624ba9707SKevin Cernekee "unknown response while entering command mode\n"); 169725bded7cSSeth Forshee return -1; 169825bded7cSSeth Forshee } 169925bded7cSSeth Forshee return 0; 170025bded7cSSeth Forshee } 170125bded7cSSeth Forshee 170225bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 170325bded7cSSeth Forshee { 170425bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 170525bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 170625bded7cSSeth Forshee return -1; 170725bded7cSSeth Forshee return 0; 170825bded7cSSeth Forshee } 170925bded7cSSeth Forshee 17101da177e4SLinus Torvalds /* 17111da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 17121da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 17131da177e4SLinus Torvalds * I'd thought it would be other way around... 17141da177e4SLinus Torvalds */ 171525bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 17161da177e4SLinus Torvalds { 17171da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 17181da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 17191da177e4SLinus Torvalds 17201da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 17211da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 17221da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 17231da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 17241da177e4SLinus Torvalds return -1; 17251da177e4SLinus Torvalds 17261da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1727c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 17281da177e4SLinus Torvalds 17291da177e4SLinus Torvalds return 0; 17301da177e4SLinus Torvalds } 17311da177e4SLinus Torvalds 173225bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 17331da177e4SLinus Torvalds { 17341da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 17351da177e4SLinus Torvalds 17361da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 17371da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 17381da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 17391da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 17401da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 17411da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 17421da177e4SLinus Torvalds return -1; 17431da177e4SLinus Torvalds 17441da177e4SLinus Torvalds /* 17451da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 17461da177e4SLinus Torvalds * get in our way 17471da177e4SLinus Torvalds */ 17481da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 17491da177e4SLinus Torvalds } 17501da177e4SLinus Torvalds 175195f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 175295f75e91SYunkang Tang { 175395f75e91SYunkang Tang int i, nibble; 175495f75e91SYunkang Tang 175595f75e91SYunkang Tang /* 175695f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 175795f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 175895f75e91SYunkang Tang */ 175995f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 176095f75e91SYunkang Tang nibble = (word >> i) & 0xf; 176195f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 176295f75e91SYunkang Tang return -1; 176395f75e91SYunkang Tang } 176495f75e91SYunkang Tang 176595f75e91SYunkang Tang return 0; 176695f75e91SYunkang Tang } 176795f75e91SYunkang Tang 176895f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 176995f75e91SYunkang Tang u16 addr, u16 value) 177095f75e91SYunkang Tang { 177195f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 177295f75e91SYunkang Tang 177395f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 177495f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 177595f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 177695f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 177795f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 177895f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 177995f75e91SYunkang Tang return -1; 178095f75e91SYunkang Tang 178195f75e91SYunkang Tang return 0; 178295f75e91SYunkang Tang } 178395f75e91SYunkang Tang 178495f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 178595f75e91SYunkang Tang { 178695f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 178795f75e91SYunkang Tang 178895f75e91SYunkang Tang if (enable) { 178995f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 179095f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 179195f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 179295f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 179395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 179495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 179595f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 179695f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 179795f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 179895f75e91SYunkang Tang return -1; 179995f75e91SYunkang Tang } else { 180095f75e91SYunkang Tang /* EC to exit monitor mode */ 180195f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 180295f75e91SYunkang Tang return -1; 180395f75e91SYunkang Tang } 180495f75e91SYunkang Tang 180595f75e91SYunkang Tang return 0; 180695f75e91SYunkang Tang } 180795f75e91SYunkang Tang 180895f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 180995f75e91SYunkang Tang { 181095f75e91SYunkang Tang u16 reg_val = 0x181; 181195f75e91SYunkang Tang int ret = -1; 181295f75e91SYunkang Tang 181395f75e91SYunkang Tang /* enter monitor mode, to write the register */ 181495f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 181595f75e91SYunkang Tang return -1; 181695f75e91SYunkang Tang 181795f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 181895f75e91SYunkang Tang 181995f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 182095f75e91SYunkang Tang ret = -1; 182195f75e91SYunkang Tang 182295f75e91SYunkang Tang return ret; 182395f75e91SYunkang Tang } 182495f75e91SYunkang Tang 18251da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 18261da177e4SLinus Torvalds { 18271da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 182824ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 18291da177e4SLinus Torvalds return -1; 18301da177e4SLinus Torvalds 18311da177e4SLinus Torvalds return 0; 18321da177e4SLinus Torvalds } 18331da177e4SLinus Torvalds 18341da177e4SLinus Torvalds /* 18351da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 18361da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 18371da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 18381da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 18391da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 18401da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 18411da177e4SLinus Torvalds * we don't fiddle with it. 18421da177e4SLinus Torvalds */ 18431da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 18441da177e4SLinus Torvalds { 18451da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 18461da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 18471da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 18481da177e4SLinus Torvalds unsigned char param[4]; 18491da177e4SLinus Torvalds 18501da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 18511da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18521da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18531da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 18541da177e4SLinus Torvalds return -1; 18551da177e4SLinus Torvalds 18561da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 18571da177e4SLinus Torvalds return -1; 18581da177e4SLinus Torvalds 18591da177e4SLinus Torvalds return 0; 18601da177e4SLinus Torvalds } 18611da177e4SLinus Torvalds 1862f0d5c6f4SDmitry Torokhov /* 1863f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1864f0d5c6f4SDmitry Torokhov * Used in resync. 1865f0d5c6f4SDmitry Torokhov */ 1866f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1867f0d5c6f4SDmitry Torokhov { 1868f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1869b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1870b7802c5cSDmitry Torokhov bool poll_failed; 1871f0d5c6f4SDmitry Torokhov 187299df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 187325bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1874f0d5c6f4SDmitry Torokhov 1875f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1876f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1877f0d5c6f4SDmitry Torokhov 187899df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 187925bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 1880f0d5c6f4SDmitry Torokhov 188199df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1882f0d5c6f4SDmitry Torokhov return -1; 1883f0d5c6f4SDmitry Torokhov 1884f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 1885f0d5c6f4SDmitry Torokhov /* 1886f0d5c6f4SDmitry Torokhov * Poll the track stick ... 1887f0d5c6f4SDmitry Torokhov */ 1888f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1889f0d5c6f4SDmitry Torokhov return -1; 1890f0d5c6f4SDmitry Torokhov } 1891f0d5c6f4SDmitry Torokhov 1892f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 1893f0d5c6f4SDmitry Torokhov return 0; 1894f0d5c6f4SDmitry Torokhov } 1895f0d5c6f4SDmitry Torokhov 189625bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 18971da177e4SLinus Torvalds { 18981da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 18991da177e4SLinus Torvalds 190099df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 190125bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 19021da177e4SLinus Torvalds return -1; 1903b7802c5cSDmitry Torokhov } 19041da177e4SLinus Torvalds 1905b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 1906b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 19071da177e4SLinus Torvalds return -1; 1908963f626dSPeter Osterlund } 19091da177e4SLinus Torvalds 191025bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 1911b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 19121da177e4SLinus Torvalds return -1; 19131da177e4SLinus Torvalds } 19141da177e4SLinus Torvalds 191599df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 191625bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 19171da177e4SLinus Torvalds return -1; 1918b7802c5cSDmitry Torokhov } 19191da177e4SLinus Torvalds 19201e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 19211e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1922b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 19231e0c5b12SDmitry Torokhov return -1; 19241e0c5b12SDmitry Torokhov } 19251e0c5b12SDmitry Torokhov 19261e0c5b12SDmitry Torokhov return 0; 19271e0c5b12SDmitry Torokhov } 19281e0c5b12SDmitry Torokhov 192995f75e91SYunkang Tang static int alps_hw_init_v6(struct psmouse *psmouse) 193095f75e91SYunkang Tang { 193195f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 193295f75e91SYunkang Tang 193395f75e91SYunkang Tang /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 193495f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, true)) 193595f75e91SYunkang Tang return -1; 193695f75e91SYunkang Tang 193795f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 193895f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 193995f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 194095f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 194195f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 194295f75e91SYunkang Tang return -1; 194395f75e91SYunkang Tang 194495f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 194595f75e91SYunkang Tang return -1; 194695f75e91SYunkang Tang 194795f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 194895f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 194995f75e91SYunkang Tang return -1; 195095f75e91SYunkang Tang } 195195f75e91SYunkang Tang 195295f75e91SYunkang Tang return 0; 195395f75e91SYunkang Tang } 195495f75e91SYunkang Tang 195525bded7cSSeth Forshee /* 1956cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 195725bded7cSSeth Forshee */ 1958cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1959cd401204SKevin Cernekee int reg_base, bool enable) 196025bded7cSSeth Forshee { 1961cd401204SKevin Cernekee int reg_val, ret = -1; 196225bded7cSSeth Forshee 1963d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 196425bded7cSSeth Forshee return -1; 196525bded7cSSeth Forshee 1966cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1967cd401204SKevin Cernekee if (reg_val == -1) 1968cd401204SKevin Cernekee goto error; 1969cd401204SKevin Cernekee 197025bded7cSSeth Forshee if (enable) 197125bded7cSSeth Forshee reg_val |= 0x01; 197225bded7cSSeth Forshee else 197325bded7cSSeth Forshee reg_val &= ~0x01; 197425bded7cSSeth Forshee 1975cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 197625bded7cSSeth Forshee 1977cd401204SKevin Cernekee error: 1978cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 1979cd401204SKevin Cernekee ret = -1; 1980cd401204SKevin Cernekee return ret; 198125bded7cSSeth Forshee } 198225bded7cSSeth Forshee 198325bded7cSSeth Forshee /* Must be in command mode when calling this function */ 198425bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 198525bded7cSSeth Forshee { 198625bded7cSSeth Forshee int reg_val; 198725bded7cSSeth Forshee 198825bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 198925bded7cSSeth Forshee if (reg_val == -1) 199025bded7cSSeth Forshee return -1; 199125bded7cSSeth Forshee 199225bded7cSSeth Forshee reg_val |= 0x06; 199325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 199425bded7cSSeth Forshee return -1; 199525bded7cSSeth Forshee 199625bded7cSSeth Forshee return 0; 199725bded7cSSeth Forshee } 199825bded7cSSeth Forshee 1999cd401204SKevin Cernekee static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 200025bded7cSSeth Forshee { 2001cd401204SKevin Cernekee int ret = -EIO, reg_val; 200225bded7cSSeth Forshee 2003d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 200425bded7cSSeth Forshee goto error; 200525bded7cSSeth Forshee 2006cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 200725bded7cSSeth Forshee if (reg_val == -1) 200825bded7cSSeth Forshee goto error; 2009cd401204SKevin Cernekee 2010cd401204SKevin Cernekee /* bit 7: trackstick is present */ 2011cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 2012cd401204SKevin Cernekee 2013cd401204SKevin Cernekee error: 2014cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 2015cd401204SKevin Cernekee return ret; 2016cd401204SKevin Cernekee } 2017cd401204SKevin Cernekee 2018cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 2019cd401204SKevin Cernekee { 2020cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 2021cd401204SKevin Cernekee int ret = 0; 2022cd401204SKevin Cernekee unsigned char param[4]; 2023cd401204SKevin Cernekee 2024cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 2025cd401204SKevin Cernekee return -EIO; 202625bded7cSSeth Forshee 202725bded7cSSeth Forshee /* 202825bded7cSSeth Forshee * E7 report for the trackstick 202925bded7cSSeth Forshee * 203025bded7cSSeth Forshee * There have been reports of failures to seem to trace back 203125bded7cSSeth Forshee * to the above trackstick check failing. When these occur 203225bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 203325bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 203425bded7cSSeth Forshee * all. 203525bded7cSSeth Forshee */ 2036cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 2037a09221e8SDmitry Torokhov psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); 2038cd401204SKevin Cernekee ret = -ENODEV; 203925bded7cSSeth Forshee } else { 204039fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 204125bded7cSSeth Forshee 204225bded7cSSeth Forshee /* 204325bded7cSSeth Forshee * Not sure what this does, but it is absolutely 204425bded7cSSeth Forshee * essential. Without it, the touchpad does not 204525bded7cSSeth Forshee * work at all and the trackstick just emits normal 204625bded7cSSeth Forshee * PS/2 packets. 204725bded7cSSeth Forshee */ 204825bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 204925bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 205025bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 205125bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x9) || 205225bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x4)) { 205325bded7cSSeth Forshee psmouse_err(psmouse, 205425bded7cSSeth Forshee "Error sending magic E6 sequence\n"); 2055cd401204SKevin Cernekee ret = -EIO; 205625bded7cSSeth Forshee goto error; 205725bded7cSSeth Forshee } 205825bded7cSSeth Forshee 2059cd401204SKevin Cernekee /* 2060cd401204SKevin Cernekee * This ensures the trackstick packets are in the format 2061cd401204SKevin Cernekee * supported by this driver. If bit 1 isn't set the packet 2062cd401204SKevin Cernekee * format is different. 2063cd401204SKevin Cernekee */ 2064d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 2065cd401204SKevin Cernekee alps_command_mode_write_reg(psmouse, 2066cd401204SKevin Cernekee reg_base + 0x08, 0x82) || 2067cd401204SKevin Cernekee alps_exit_command_mode(psmouse)) 2068cd401204SKevin Cernekee ret = -EIO; 2069cd401204SKevin Cernekee } 2070cd401204SKevin Cernekee 2071cd401204SKevin Cernekee error: 2072cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 2073cd401204SKevin Cernekee ret = -EIO; 2074cd401204SKevin Cernekee 2075cd401204SKevin Cernekee return ret; 2076cd401204SKevin Cernekee } 2077cd401204SKevin Cernekee 2078cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 2079cd401204SKevin Cernekee { 2080cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 2081cd401204SKevin Cernekee int reg_val; 2082cd401204SKevin Cernekee unsigned char param[4]; 2083cd401204SKevin Cernekee 2084cd401204SKevin Cernekee reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 2085cd401204SKevin Cernekee if (reg_val == -EIO) 2086cd401204SKevin Cernekee goto error; 208739fbe585SDmitry Torokhov 2088cd401204SKevin Cernekee if (reg_val == 0 && 2089cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 2090cd401204SKevin Cernekee goto error; 2091cd401204SKevin Cernekee 2092d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 2093cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 209425bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 209525bded7cSSeth Forshee goto error; 209625bded7cSSeth Forshee } 209725bded7cSSeth Forshee 209825bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 209925bded7cSSeth Forshee if (reg_val == -1) 210025bded7cSSeth Forshee goto error; 210125bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 210225bded7cSSeth Forshee goto error; 210325bded7cSSeth Forshee 210425bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 210525bded7cSSeth Forshee if (reg_val == -1) 210625bded7cSSeth Forshee goto error; 210725bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 210825bded7cSSeth Forshee goto error; 210925bded7cSSeth Forshee 211025bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 211125bded7cSSeth Forshee goto error; 211225bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 211325bded7cSSeth Forshee goto error; 211425bded7cSSeth Forshee 211525bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 211625bded7cSSeth Forshee goto error; 211725bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 211825bded7cSSeth Forshee goto error; 211925bded7cSSeth Forshee 212025bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 212125bded7cSSeth Forshee goto error; 212225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 212325bded7cSSeth Forshee goto error; 212425bded7cSSeth Forshee 212525bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 212625bded7cSSeth Forshee goto error; 212725bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 212825bded7cSSeth Forshee goto error; 212925bded7cSSeth Forshee 213025bded7cSSeth Forshee alps_exit_command_mode(psmouse); 213125bded7cSSeth Forshee 213225bded7cSSeth Forshee /* Set rate and enable data reporting */ 213325bded7cSSeth Forshee param[0] = 0x64; 213425bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 213525bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 213625bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 213725bded7cSSeth Forshee return -1; 213825bded7cSSeth Forshee } 213925bded7cSSeth Forshee 214025bded7cSSeth Forshee return 0; 214125bded7cSSeth Forshee 214225bded7cSSeth Forshee error: 214325bded7cSSeth Forshee /* 214425bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 214525bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 214625bded7cSSeth Forshee * to be safe 214725bded7cSSeth Forshee */ 214825bded7cSSeth Forshee alps_exit_command_mode(psmouse); 214925bded7cSSeth Forshee return -1; 215025bded7cSSeth Forshee } 215125bded7cSSeth Forshee 2152f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 2153f3f33c67SHans de Goede { 2154f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 2155f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 2156f3f33c67SHans de Goede 2157f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 2158f3f33c67SHans de Goede if (reg < 0) 2159f3f33c67SHans de Goede return reg; 2160f3f33c67SHans de Goede 2161f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 2162f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 2163f3f33c67SHans de Goede 2164f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 2165f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 2166f3f33c67SHans de Goede 2167f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 2168f3f33c67SHans de Goede if (reg < 0) 2169f3f33c67SHans de Goede return reg; 2170f3f33c67SHans de Goede 2171f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 2172f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 2173f3f33c67SHans de Goede 2174f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 2175f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 2176f3f33c67SHans de Goede 2177f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 2178f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 2179f3f33c67SHans de Goede 2180f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 2181f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 2182f3f33c67SHans de Goede 2183f3f33c67SHans de Goede psmouse_dbg(psmouse, 2184f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 2185f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 2186f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 2187f3f33c67SHans de Goede 2188f3f33c67SHans de Goede return 0; 2189f3f33c67SHans de Goede } 2190f3f33c67SHans de Goede 21911302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 21921302bac3SKevin Cernekee { 2193cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 21941302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 21951302bac3SKevin Cernekee int reg_val, ret = -1; 21961302bac3SKevin Cernekee 2197cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 2198cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 2199cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 2200cd401204SKevin Cernekee if (reg_val == -EIO) 2201cd401204SKevin Cernekee goto error; 2202cd401204SKevin Cernekee } 2203cd401204SKevin Cernekee 2204d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 22051302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 22061302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 22071302bac3SKevin Cernekee goto error; 22081302bac3SKevin Cernekee 2209f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 2210f3f33c67SHans de Goede goto error; 2211f3f33c67SHans de Goede 22121302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 22131302bac3SKevin Cernekee if (reg_val == -1) 22141302bac3SKevin Cernekee goto error; 22151302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 22161302bac3SKevin Cernekee goto error; 22171302bac3SKevin Cernekee 22181302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 22191302bac3SKevin Cernekee goto error; 22201302bac3SKevin Cernekee 22211302bac3SKevin Cernekee /* enter absolute mode */ 22221302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 22231302bac3SKevin Cernekee if (reg_val == -1) 22241302bac3SKevin Cernekee goto error; 22251302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 22261302bac3SKevin Cernekee goto error; 22271302bac3SKevin Cernekee 22281302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 22291302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 22301302bac3SKevin Cernekee 22311302bac3SKevin Cernekee error: 22321302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 22331302bac3SKevin Cernekee return ret; 22341302bac3SKevin Cernekee } 22351302bac3SKevin Cernekee 223625bded7cSSeth Forshee /* Must be in command mode when calling this function */ 223725bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 223825bded7cSSeth Forshee { 223925bded7cSSeth Forshee int reg_val; 224025bded7cSSeth Forshee 224125bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 224225bded7cSSeth Forshee if (reg_val == -1) 224325bded7cSSeth Forshee return -1; 224425bded7cSSeth Forshee 224525bded7cSSeth Forshee reg_val |= 0x02; 224625bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 224725bded7cSSeth Forshee return -1; 224825bded7cSSeth Forshee 224925bded7cSSeth Forshee return 0; 225025bded7cSSeth Forshee } 225125bded7cSSeth Forshee 225225bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 225325bded7cSSeth Forshee { 225425bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 225525bded7cSSeth Forshee unsigned char param[4]; 225625bded7cSSeth Forshee 2257d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 225825bded7cSSeth Forshee goto error; 225925bded7cSSeth Forshee 226025bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 226125bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 226225bded7cSSeth Forshee goto error; 226325bded7cSSeth Forshee } 226425bded7cSSeth Forshee 226525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 226625bded7cSSeth Forshee goto error; 226725bded7cSSeth Forshee 226825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 226925bded7cSSeth Forshee goto error; 227025bded7cSSeth Forshee 227125bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 227225bded7cSSeth Forshee goto error; 227325bded7cSSeth Forshee 227425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 227525bded7cSSeth Forshee goto error; 227625bded7cSSeth Forshee 227725bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 227825bded7cSSeth Forshee goto error; 227925bded7cSSeth Forshee 228025bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 228125bded7cSSeth Forshee goto error; 228225bded7cSSeth Forshee 228325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 228425bded7cSSeth Forshee goto error; 228525bded7cSSeth Forshee 228625bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 228725bded7cSSeth Forshee goto error; 228825bded7cSSeth Forshee 228925bded7cSSeth Forshee alps_exit_command_mode(psmouse); 229025bded7cSSeth Forshee 229125bded7cSSeth Forshee /* 229225bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 229325bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 229425bded7cSSeth Forshee * just in a more compact format. 229525bded7cSSeth Forshee */ 229625bded7cSSeth Forshee param[0] = 0xc8; 229725bded7cSSeth Forshee param[1] = 0x64; 229825bded7cSSeth Forshee param[2] = 0x50; 229925bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 230025bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 230125bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 230225bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 230325bded7cSSeth Forshee return -1; 230425bded7cSSeth Forshee 230525bded7cSSeth Forshee /* Set rate and enable data reporting */ 230625bded7cSSeth Forshee param[0] = 0x64; 230725bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 230825bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 230925bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 231025bded7cSSeth Forshee return -1; 231125bded7cSSeth Forshee } 231225bded7cSSeth Forshee 231325bded7cSSeth Forshee return 0; 231425bded7cSSeth Forshee 231525bded7cSSeth Forshee error: 231625bded7cSSeth Forshee /* 231725bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 231825bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 231925bded7cSSeth Forshee * to be safe 232025bded7cSSeth Forshee */ 232125bded7cSSeth Forshee alps_exit_command_mode(psmouse); 232225bded7cSSeth Forshee return -1; 232325bded7cSSeth Forshee } 232425bded7cSSeth Forshee 23253db5b9f7SMasaki Ota static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse, 23263db5b9f7SMasaki Ota unsigned char index, unsigned char otp[]) 23273db5b9f7SMasaki Ota { 23283db5b9f7SMasaki Ota struct ps2dev *ps2dev = &psmouse->ps2dev; 23293db5b9f7SMasaki Ota 23303db5b9f7SMasaki Ota switch (index) { 23313db5b9f7SMasaki Ota case 0: 23323db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 23333db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 23343db5b9f7SMasaki Ota ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) 23353db5b9f7SMasaki Ota return -1; 23363db5b9f7SMasaki Ota 23373db5b9f7SMasaki Ota break; 23383db5b9f7SMasaki Ota 23393db5b9f7SMasaki Ota case 1: 23403db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 23413db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 23423db5b9f7SMasaki Ota ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) 23433db5b9f7SMasaki Ota return -1; 23443db5b9f7SMasaki Ota 23453db5b9f7SMasaki Ota break; 23463db5b9f7SMasaki Ota } 23473db5b9f7SMasaki Ota 23483db5b9f7SMasaki Ota return 0; 23493db5b9f7SMasaki Ota } 23503db5b9f7SMasaki Ota 235107f19e3dSFengguang Wu static int alps_update_device_area_ss4_v2(unsigned char otp[][4], 23523db5b9f7SMasaki Ota struct alps_data *priv) 23533db5b9f7SMasaki Ota { 23543db5b9f7SMasaki Ota int num_x_electrode; 23553db5b9f7SMasaki Ota int num_y_electrode; 23563db5b9f7SMasaki Ota int x_pitch, y_pitch, x_phys, y_phys; 23573db5b9f7SMasaki Ota 23583db5b9f7SMasaki Ota num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F); 23593db5b9f7SMasaki Ota num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F); 23603db5b9f7SMasaki Ota 23613db5b9f7SMasaki Ota priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE; 23623db5b9f7SMasaki Ota priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE; 23633db5b9f7SMasaki Ota 23643db5b9f7SMasaki Ota x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM; 23653db5b9f7SMasaki Ota y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM; 23663db5b9f7SMasaki Ota 23673db5b9f7SMasaki Ota x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */ 23683db5b9f7SMasaki Ota y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */ 23693db5b9f7SMasaki Ota 23703db5b9f7SMasaki Ota priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 23713db5b9f7SMasaki Ota priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 23723db5b9f7SMasaki Ota 23733db5b9f7SMasaki Ota return 0; 23743db5b9f7SMasaki Ota } 23753db5b9f7SMasaki Ota 237607f19e3dSFengguang Wu static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], 237707f19e3dSFengguang Wu struct alps_data *priv) 23783db5b9f7SMasaki Ota { 23793db5b9f7SMasaki Ota unsigned char is_btnless; 23803db5b9f7SMasaki Ota 23813db5b9f7SMasaki Ota is_btnless = (otp[1][1] >> 3) & 0x01; 23823db5b9f7SMasaki Ota 23833db5b9f7SMasaki Ota if (is_btnless) 23843db5b9f7SMasaki Ota priv->flags |= ALPS_BUTTONPAD; 23853db5b9f7SMasaki Ota 23863db5b9f7SMasaki Ota return 0; 23873db5b9f7SMasaki Ota } 23883db5b9f7SMasaki Ota 23893db5b9f7SMasaki Ota static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, 23903db5b9f7SMasaki Ota struct alps_data *priv) 23913db5b9f7SMasaki Ota { 23923db5b9f7SMasaki Ota unsigned char otp[2][4]; 23933db5b9f7SMasaki Ota 23943db5b9f7SMasaki Ota memset(otp, 0, sizeof(otp)); 23953db5b9f7SMasaki Ota 23963db5b9f7SMasaki Ota if (alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0]) || 23973db5b9f7SMasaki Ota alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0])) 23983db5b9f7SMasaki Ota return -1; 23993db5b9f7SMasaki Ota 24003db5b9f7SMasaki Ota alps_update_device_area_ss4_v2(otp, priv); 24013db5b9f7SMasaki Ota 24023db5b9f7SMasaki Ota alps_update_btn_info_ss4_v2(otp, priv); 24033db5b9f7SMasaki Ota 24043db5b9f7SMasaki Ota return 0; 24053db5b9f7SMasaki Ota } 24063db5b9f7SMasaki Ota 2407ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2408ee65d4b3SYunkang Tang struct alps_data *priv) 2409ee65d4b3SYunkang Tang { 2410ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2411ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2412ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2413ee65d4b3SYunkang Tang 2414ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2415ee65d4b3SYunkang Tang return -1; 2416ee65d4b3SYunkang Tang 2417ee65d4b3SYunkang Tang param[0] = 0x0a; 2418ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2419ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2420ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2421ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2422ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2423ee65d4b3SYunkang Tang return -1; 2424ee65d4b3SYunkang Tang 2425ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2426ee65d4b3SYunkang Tang return -1; 2427ee65d4b3SYunkang Tang 2428ee65d4b3SYunkang Tang /* 2429ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2430ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2431ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2432ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2433ee65d4b3SYunkang Tang * 2434ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2435ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2436ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2437ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2438ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2439ee65d4b3SYunkang Tang */ 2440ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2441ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2442ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2443ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2444ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2445ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2446ee65d4b3SYunkang Tang 2447ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2448ee65d4b3SYunkang Tang return -1; 2449ee65d4b3SYunkang Tang 2450ee65d4b3SYunkang Tang return 0; 2451ee65d4b3SYunkang Tang } 2452ee65d4b3SYunkang Tang 245375af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 245475af9e56SDave Turvene { 245575af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 245675af9e56SDave Turvene unsigned char param[2]; 245775af9e56SDave Turvene 245875af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 245975af9e56SDave Turvene param[0] = 0x64; 246075af9e56SDave Turvene param[1] = 0x28; 246175af9e56SDave Turvene 246275af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 246375af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 246475af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 246575af9e56SDave Turvene return -1; 246675af9e56SDave Turvene 246775af9e56SDave Turvene return 0; 246875af9e56SDave Turvene } 246975af9e56SDave Turvene 24703808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 24713808843cSYunkang Tang { 24723808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 24733808843cSYunkang Tang int reg_val, ret = -1; 24743808843cSYunkang Tang 24753808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 24763808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 24773808843cSYunkang Tang goto error; 24783808843cSYunkang Tang 2479f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2480f3f33c67SHans de Goede goto error; 2481f3f33c67SHans de Goede 24823808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 24833808843cSYunkang Tang goto error; 24843808843cSYunkang Tang 24853808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 24863808843cSYunkang Tang if (reg_val == -1) 24873808843cSYunkang Tang goto error; 24883808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 24893808843cSYunkang Tang goto error; 24903808843cSYunkang Tang 24913808843cSYunkang Tang alps_exit_command_mode(psmouse); 24923808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 24933808843cSYunkang Tang 24943808843cSYunkang Tang error: 24953808843cSYunkang Tang alps_exit_command_mode(psmouse); 24963808843cSYunkang Tang return ret; 24973808843cSYunkang Tang } 24983808843cSYunkang Tang 24993db5b9f7SMasaki Ota static int alps_hw_init_ss4_v2(struct psmouse *psmouse) 25003db5b9f7SMasaki Ota { 25013db5b9f7SMasaki Ota struct ps2dev *ps2dev = &psmouse->ps2dev; 25023db5b9f7SMasaki Ota char param[2] = {0x64, 0x28}; 25033db5b9f7SMasaki Ota int ret = -1; 25043db5b9f7SMasaki Ota 25053db5b9f7SMasaki Ota /* enter absolute mode */ 25063db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 25073db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 25083db5b9f7SMasaki Ota ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 25093db5b9f7SMasaki Ota ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) { 25103db5b9f7SMasaki Ota goto error; 25113db5b9f7SMasaki Ota } 25123db5b9f7SMasaki Ota 25133db5b9f7SMasaki Ota /* T.B.D. Decread noise packet number, delete in the future */ 25143db5b9f7SMasaki Ota if (alps_exit_command_mode(psmouse) || 25153db5b9f7SMasaki Ota alps_enter_command_mode(psmouse) || 25163db5b9f7SMasaki Ota alps_command_mode_write_reg(psmouse, 0x001D, 0x20)) { 25173db5b9f7SMasaki Ota goto error; 25183db5b9f7SMasaki Ota } 25193db5b9f7SMasaki Ota alps_exit_command_mode(psmouse); 25203db5b9f7SMasaki Ota 25213db5b9f7SMasaki Ota return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 25223db5b9f7SMasaki Ota 25233db5b9f7SMasaki Ota error: 25243db5b9f7SMasaki Ota alps_exit_command_mode(psmouse); 25253db5b9f7SMasaki Ota return ret; 25263db5b9f7SMasaki Ota } 25273db5b9f7SMasaki Ota 25283296f71cSDmitry Torokhov static int alps_set_protocol(struct psmouse *psmouse, 25293296f71cSDmitry Torokhov struct alps_data *priv, 25303296f71cSDmitry Torokhov const struct alps_protocol_info *protocol) 253125bded7cSSeth Forshee { 25323296f71cSDmitry Torokhov psmouse->private = priv; 25333296f71cSDmitry Torokhov 25343296f71cSDmitry Torokhov setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 25353296f71cSDmitry Torokhov 25363296f71cSDmitry Torokhov priv->proto_version = protocol->version; 25373296f71cSDmitry Torokhov priv->byte0 = protocol->byte0; 25383296f71cSDmitry Torokhov priv->mask0 = protocol->mask0; 25393296f71cSDmitry Torokhov priv->flags = protocol->flags; 2540f673ceb1SKevin Cernekee 25417a9f73e7SKevin Cernekee priv->x_max = 2000; 25427a9f73e7SKevin Cernekee priv->y_max = 1400; 25437a9f73e7SKevin Cernekee priv->x_bits = 15; 25447a9f73e7SKevin Cernekee priv->y_bits = 11; 25457a9f73e7SKevin Cernekee 254699df65e7SKevin Cernekee switch (priv->proto_version) { 254725bded7cSSeth Forshee case ALPS_PROTO_V1: 254825bded7cSSeth Forshee case ALPS_PROTO_V2: 254924af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 255024af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 255124af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 255295f75e91SYunkang Tang priv->x_max = 1023; 255395f75e91SYunkang Tang priv->y_max = 767; 255425bded7cSSeth Forshee break; 2555fb2dd7a6SDmitry Torokhov 255625bded7cSSeth Forshee case ALPS_PROTO_V3: 255724af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 255824af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 2559688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 2560f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 256150e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 256250e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 256325bded7cSSeth Forshee break; 2564fb2dd7a6SDmitry Torokhov 2565fb2dd7a6SDmitry Torokhov case ALPS_PROTO_V3_RUSHMORE: 2566fb2dd7a6SDmitry Torokhov priv->hw_init = alps_hw_init_rushmore_v3; 2567fb2dd7a6SDmitry Torokhov priv->process_packet = alps_process_packet_v3; 2568688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 2569fb2dd7a6SDmitry Torokhov priv->decode_fields = alps_decode_rushmore; 2570fb2dd7a6SDmitry Torokhov priv->nibble_commands = alps_v3_nibble_commands; 2571fb2dd7a6SDmitry Torokhov priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2572fb2dd7a6SDmitry Torokhov priv->x_bits = 16; 2573fb2dd7a6SDmitry Torokhov priv->y_bits = 12; 25743296f71cSDmitry Torokhov 25753296f71cSDmitry Torokhov if (alps_probe_trackstick_v3(psmouse, 25763296f71cSDmitry Torokhov ALPS_REG_BASE_RUSHMORE) < 0) 25773296f71cSDmitry Torokhov priv->flags &= ~ALPS_DUALPOINT; 25783296f71cSDmitry Torokhov 2579fb2dd7a6SDmitry Torokhov break; 2580fb2dd7a6SDmitry Torokhov 258125bded7cSSeth Forshee case ALPS_PROTO_V4: 258224af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 258324af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 2584688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 258550e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 258650e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 258725bded7cSSeth Forshee break; 25883296f71cSDmitry Torokhov 258975af9e56SDave Turvene case ALPS_PROTO_V5: 259075af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2591ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 259275af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 2593688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 259475af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 259575af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 259675af9e56SDave Turvene priv->x_bits = 23; 259775af9e56SDave Turvene priv->y_bits = 12; 2598c164c147SDmitry Torokhov 2599c164c147SDmitry Torokhov if (alps_dolphin_get_device_area(psmouse, priv)) 2600c164c147SDmitry Torokhov return -EIO; 2601c164c147SDmitry Torokhov 260275af9e56SDave Turvene break; 26033296f71cSDmitry Torokhov 260495f75e91SYunkang Tang case ALPS_PROTO_V6: 260595f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 260695f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 260795f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 260895f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 260995f75e91SYunkang Tang priv->x_max = 2047; 261095f75e91SYunkang Tang priv->y_max = 1535; 261195f75e91SYunkang Tang break; 26123296f71cSDmitry Torokhov 26133808843cSYunkang Tang case ALPS_PROTO_V7: 26143808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 26153808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 26163808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 26178eccd393SMasaki Ota priv->set_abs_params = alps_set_abs_params_v7; 26183808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 26193808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2620c164c147SDmitry Torokhov priv->x_max = 0xfff; 2621c164c147SDmitry Torokhov priv->y_max = 0x7ff; 26223808843cSYunkang Tang 26233808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 26243808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 26253296f71cSDmitry Torokhov 26263808843cSYunkang Tang break; 26273db5b9f7SMasaki Ota 26283db5b9f7SMasaki Ota case ALPS_PROTO_V8: 26293db5b9f7SMasaki Ota priv->hw_init = alps_hw_init_ss4_v2; 26303db5b9f7SMasaki Ota priv->process_packet = alps_process_packet_ss4_v2; 26313db5b9f7SMasaki Ota priv->decode_fields = alps_decode_ss4_v2; 26323db5b9f7SMasaki Ota priv->set_abs_params = alps_set_abs_params_ss4_v2; 26333db5b9f7SMasaki Ota priv->nibble_commands = alps_v3_nibble_commands; 26343db5b9f7SMasaki Ota priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 26353db5b9f7SMasaki Ota 26363db5b9f7SMasaki Ota if (alps_set_defaults_ss4_v2(psmouse, priv)) 26373db5b9f7SMasaki Ota return -EIO; 26383db5b9f7SMasaki Ota 26393db5b9f7SMasaki Ota break; 264025bded7cSSeth Forshee } 26413296f71cSDmitry Torokhov 26423296f71cSDmitry Torokhov return 0; 264325bded7cSSeth Forshee } 264425bded7cSSeth Forshee 26453296f71cSDmitry Torokhov static const struct alps_protocol_info *alps_match_table(unsigned char *e7, 26463296f71cSDmitry Torokhov unsigned char *ec) 26472e992cc0SKevin Cernekee { 2648b5d6b851SKevin Cernekee const struct alps_model_info *model; 26492e992cc0SKevin Cernekee int i; 26502e992cc0SKevin Cernekee 2651b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2652b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2653b5d6b851SKevin Cernekee 2654b5d6b851SKevin Cernekee if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2655b5d6b851SKevin Cernekee (!model->command_mode_resp || 2656b5d6b851SKevin Cernekee model->command_mode_resp == ec[2])) { 2657b5d6b851SKevin Cernekee 26583296f71cSDmitry Torokhov return &model->protocol_info; 2659b5d6b851SKevin Cernekee } 2660b5d6b851SKevin Cernekee } 2661b5d6b851SKevin Cernekee 26623296f71cSDmitry Torokhov return NULL; 2663b5d6b851SKevin Cernekee } 2664b5d6b851SKevin Cernekee 2665b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2666b5d6b851SKevin Cernekee { 26673296f71cSDmitry Torokhov const struct alps_protocol_info *protocol; 2668b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2669a09221e8SDmitry Torokhov int error; 2670b5d6b851SKevin Cernekee 26712e992cc0SKevin Cernekee /* 26722e992cc0SKevin Cernekee * First try "E6 report". 26732e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 26742e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 26752e992cc0SKevin Cernekee * pressed. 26762e992cc0SKevin Cernekee */ 2677b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2678b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2679b5d6b851SKevin Cernekee return -EIO; 26802e992cc0SKevin Cernekee 2681b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2682b5d6b851SKevin Cernekee return -EINVAL; 26832e992cc0SKevin Cernekee 26842e992cc0SKevin Cernekee /* 2685b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2686b5d6b851SKevin Cernekee * most ALPS touchpads. 26872e992cc0SKevin Cernekee */ 2688b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2689b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2690b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2691b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2692b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2693b5d6b851SKevin Cernekee return -EIO; 26942e992cc0SKevin Cernekee 26953296f71cSDmitry Torokhov protocol = alps_match_table(e7, ec); 26963296f71cSDmitry Torokhov if (!protocol) { 26973296f71cSDmitry Torokhov if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 26983296f71cSDmitry Torokhov ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 26993296f71cSDmitry Torokhov protocol = &alps_v5_protocol_data; 27003296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && 27013296f71cSDmitry Torokhov ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 27023296f71cSDmitry Torokhov protocol = &alps_v7_protocol_data; 27033296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x08) { 27043296f71cSDmitry Torokhov protocol = &alps_v3_rushmore_data; 27053296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x07 && 27063296f71cSDmitry Torokhov ec[2] >= 0x90 && ec[2] <= 0x9d) { 27073296f71cSDmitry Torokhov protocol = &alps_v3_protocol_data; 27083db5b9f7SMasaki Ota } else if (e7[0] == 0x73 && e7[1] == 0x03 && 27093db5b9f7SMasaki Ota e7[2] == 0x14 && ec[1] == 0x02) { 27103db5b9f7SMasaki Ota protocol = &alps_v8_protocol_data; 27113296f71cSDmitry Torokhov } else { 27123296f71cSDmitry Torokhov psmouse_dbg(psmouse, 27133296f71cSDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 27143296f71cSDmitry Torokhov return -EINVAL; 27153296f71cSDmitry Torokhov } 27163296f71cSDmitry Torokhov } 27173296f71cSDmitry Torokhov 2718a09221e8SDmitry Torokhov if (priv) { 2719c0cd17f6SHans de Goede /* Save the Firmware version */ 2720c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2721a09221e8SDmitry Torokhov error = alps_set_protocol(psmouse, priv, protocol); 2722a09221e8SDmitry Torokhov if (error) 2723a09221e8SDmitry Torokhov return error; 2724a09221e8SDmitry Torokhov } 2725c0cd17f6SHans de Goede 2726a09221e8SDmitry Torokhov return 0; 27272e992cc0SKevin Cernekee } 27282e992cc0SKevin Cernekee 27291e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 27301e0c5b12SDmitry Torokhov { 2731b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 273271bb21b6SMaxim Levitsky 27331e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 27341e0c5b12SDmitry Torokhov 2735b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 27361e0c5b12SDmitry Torokhov return -1; 27371e0c5b12SDmitry Torokhov 273824af5cb9SKevin Cernekee return priv->hw_init(psmouse); 27391da177e4SLinus Torvalds } 27401da177e4SLinus Torvalds 27411da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 27421da177e4SLinus Torvalds { 27431da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 27442e5b636bSDmitry Torokhov 27451da177e4SLinus Torvalds psmouse_reset(psmouse); 27461d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 274704aae283SPali Rohár if (priv->dev2) 27482e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 274904aae283SPali Rohár if (!IS_ERR_OR_NULL(priv->dev3)) 275004aae283SPali Rohár input_unregister_device(priv->dev3); 27511da177e4SLinus Torvalds kfree(priv); 27521da177e4SLinus Torvalds } 27531da177e4SLinus Torvalds 275424af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 275524af5cb9SKevin Cernekee struct input_dev *dev1) 275624af5cb9SKevin Cernekee { 275795f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 275895f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 27598eccd393SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 276024af5cb9SKevin Cernekee } 276124af5cb9SKevin Cernekee 27628eccd393SMasaki Ota static void alps_set_abs_params_mt_common(struct alps_data *priv, 276324af5cb9SKevin Cernekee struct input_dev *dev1) 276424af5cb9SKevin Cernekee { 27657a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 27667a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 276724af5cb9SKevin Cernekee 2768f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2769f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2770f3f33c67SHans de Goede 277124af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 277224af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 27738eccd393SMasaki Ota } 27743808843cSYunkang Tang 2775688ea364SHans de Goede static void alps_set_abs_params_semi_mt(struct alps_data *priv, 27768eccd393SMasaki Ota struct input_dev *dev1) 27778eccd393SMasaki Ota { 27788eccd393SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 27798eccd393SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 27808eccd393SMasaki Ota 27818eccd393SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 27828eccd393SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 27831662c033SHans de Goede INPUT_MT_SEMI_MT); 27848eccd393SMasaki Ota } 27858eccd393SMasaki Ota 27868eccd393SMasaki Ota static void alps_set_abs_params_v7(struct alps_data *priv, 27878eccd393SMasaki Ota struct input_dev *dev1) 27888eccd393SMasaki Ota { 27898eccd393SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 27908d289842SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 27918eccd393SMasaki Ota 27928eccd393SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 27938eccd393SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 27948eccd393SMasaki Ota INPUT_MT_TRACK); 27953db5b9f7SMasaki Ota 27963db5b9f7SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 27973db5b9f7SMasaki Ota } 27983db5b9f7SMasaki Ota 27993db5b9f7SMasaki Ota static void alps_set_abs_params_ss4_v2(struct alps_data *priv, 28003db5b9f7SMasaki Ota struct input_dev *dev1) 28013db5b9f7SMasaki Ota { 28023db5b9f7SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 28033db5b9f7SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 28043db5b9f7SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 28053db5b9f7SMasaki Ota 28063db5b9f7SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 28073db5b9f7SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 28083db5b9f7SMasaki Ota INPUT_MT_TRACK); 280924af5cb9SKevin Cernekee } 281024af5cb9SKevin Cernekee 28111da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 28121da177e4SLinus Torvalds { 2813a09221e8SDmitry Torokhov struct alps_data *priv = psmouse->private; 281404aae283SPali Rohár struct input_dev *dev1 = psmouse->dev; 2815a09221e8SDmitry Torokhov int error; 28161da177e4SLinus Torvalds 2817a09221e8SDmitry Torokhov error = priv->hw_init(psmouse); 2818a09221e8SDmitry Torokhov if (error) 28191da177e4SLinus Torvalds goto init_fail; 28201da177e4SLinus Torvalds 28217105d2eaSDmitry Torokhov /* 28227105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 28237105d2eaSDmitry Torokhov * is not a relative device. 28247105d2eaSDmitry Torokhov */ 28257105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 28267105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 28277105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 28287105d2eaSDmitry Torokhov 28297105d2eaSDmitry Torokhov /* 28307105d2eaSDmitry Torokhov * Now set up our capabilities. 28317105d2eaSDmitry Torokhov */ 28327b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 28337b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 28347b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 283571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 283671bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 28371da177e4SLinus Torvalds 28387b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 283925bded7cSSeth Forshee 284024af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 28411da177e4SLinus Torvalds 284299df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 28437b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 28447b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 28451da177e4SLinus Torvalds } 28461da177e4SLinus Torvalds 284799df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 28487b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 28497b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 28501da177e4SLinus Torvalds } 28511da177e4SLinus Torvalds 285299df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 285371bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 285471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 285571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 285671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 28573808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 28583808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 28593808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 286071bb21b6SMaxim Levitsky } else { 286171bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 286271bb21b6SMaxim Levitsky } 286371bb21b6SMaxim Levitsky 2864dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 286504aae283SPali Rohár struct input_dev *dev2; 286604aae283SPali Rohár 286704aae283SPali Rohár dev2 = input_allocate_device(); 286804aae283SPali Rohár if (!dev2) { 286904aae283SPali Rohár psmouse_err(psmouse, 287004aae283SPali Rohár "failed to allocate trackstick device\n"); 287104aae283SPali Rohár error = -ENOMEM; 287204aae283SPali Rohár goto init_fail; 287304aae283SPali Rohár } 287404aae283SPali Rohár 287504aae283SPali Rohár snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1", 287604aae283SPali Rohár psmouse->ps2dev.serio->phys); 287704aae283SPali Rohár dev2->phys = priv->phys2; 287804aae283SPali Rohár 2879dfba8600SPali Rohár /* 2880dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 2881dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 2882dfba8600SPali Rohár */ 2883dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 2884dfba8600SPali Rohár 28852e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 28862e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 288704aae283SPali Rohár dev2->id.product = PSMOUSE_ALPS; 288804aae283SPali Rohár dev2->id.version = priv->proto_version; 28891db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 28901da177e4SLinus Torvalds 289104aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_X); 289204aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_Y); 289304aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_LEFT); 289404aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_RIGHT); 289504aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_MIDDLE); 28961da177e4SLinus Torvalds 289701d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 28987611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 28997611392fSHans de Goede 290004aae283SPali Rohár error = input_register_device(dev2); 290104aae283SPali Rohár if (error) { 290204aae283SPali Rohár psmouse_err(psmouse, 290304aae283SPali Rohár "failed to register trackstick device: %d\n", 290404aae283SPali Rohár error); 290504aae283SPali Rohár input_free_device(dev2); 2906f42649e8SDmitry Torokhov goto init_fail; 290704aae283SPali Rohár } 290804aae283SPali Rohár 290904aae283SPali Rohár priv->dev2 = dev2; 291004aae283SPali Rohár } 291104aae283SPali Rohár 291204aae283SPali Rohár priv->psmouse = psmouse; 291304aae283SPali Rohár 291404aae283SPali Rohár INIT_DELAYED_WORK(&priv->dev3_register_work, 291504aae283SPali Rohár alps_register_bare_ps2_mouse); 29161da177e4SLinus Torvalds 29171da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 2918f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 29191da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 29201da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 292199df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 29221da177e4SLinus Torvalds 2923f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2924f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 2925f0d5c6f4SDmitry Torokhov 29269d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 29279d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 29289d720b34SPali Rohár 29291da177e4SLinus Torvalds return 0; 29301da177e4SLinus Torvalds 29311da177e4SLinus Torvalds init_fail: 2932f42649e8SDmitry Torokhov psmouse_reset(psmouse); 2933a09221e8SDmitry Torokhov /* 2934a09221e8SDmitry Torokhov * Even though we did not allocate psmouse->private we do free 2935a09221e8SDmitry Torokhov * it here. 2936a09221e8SDmitry Torokhov */ 2937a09221e8SDmitry Torokhov kfree(psmouse->private); 29381e0c5b12SDmitry Torokhov psmouse->private = NULL; 2939a09221e8SDmitry Torokhov return error; 29401da177e4SLinus Torvalds } 29411da177e4SLinus Torvalds 2942b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 29431da177e4SLinus Torvalds { 2944a09221e8SDmitry Torokhov struct alps_data *priv; 2945a09221e8SDmitry Torokhov int error; 29461da177e4SLinus Torvalds 2947a09221e8SDmitry Torokhov error = alps_identify(psmouse, NULL); 2948a09221e8SDmitry Torokhov if (error) 2949a09221e8SDmitry Torokhov return error; 2950a09221e8SDmitry Torokhov 2951a09221e8SDmitry Torokhov /* 2952a09221e8SDmitry Torokhov * Reset the device to make sure it is fully operational: 2953a09221e8SDmitry Torokhov * on some laptops, like certain Dell Latitudes, we may 2954a09221e8SDmitry Torokhov * fail to properly detect presence of trackstick if device 2955a09221e8SDmitry Torokhov * has not been reset. 2956a09221e8SDmitry Torokhov */ 2957a09221e8SDmitry Torokhov psmouse_reset(psmouse); 2958a09221e8SDmitry Torokhov 2959a09221e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 2960a09221e8SDmitry Torokhov if (!priv) 2961a09221e8SDmitry Torokhov return -ENOMEM; 2962a09221e8SDmitry Torokhov 2963a09221e8SDmitry Torokhov error = alps_identify(psmouse, priv); 296493050db2SDmitry Torokhov if (error) { 296593050db2SDmitry Torokhov kfree(priv); 2966a09221e8SDmitry Torokhov return error; 296793050db2SDmitry Torokhov } 29681da177e4SLinus Torvalds 29691da177e4SLinus Torvalds if (set_properties) { 29701da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 2971a09221e8SDmitry Torokhov psmouse->name = priv->flags & ALPS_DUALPOINT ? 2972968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 2973a09221e8SDmitry Torokhov psmouse->model = priv->proto_version; 2974a09221e8SDmitry Torokhov } else { 2975a09221e8SDmitry Torokhov /* 2976a09221e8SDmitry Torokhov * Destroy alps_data structure we allocated earlier since 2977a09221e8SDmitry Torokhov * this was just a "trial run". Otherwise we'll keep it 2978a09221e8SDmitry Torokhov * to be used by alps_init() which has to be called if 2979a09221e8SDmitry Torokhov * we succeed and set_properties is true. 2980a09221e8SDmitry Torokhov */ 2981a09221e8SDmitry Torokhov kfree(priv); 2982a09221e8SDmitry Torokhov psmouse->private = NULL; 29831da177e4SLinus Torvalds } 2984a09221e8SDmitry Torokhov 29851da177e4SLinus Torvalds return 0; 29861da177e4SLinus Torvalds } 29871da177e4SLinus Torvalds 2988