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 */ 1208326bb57SDmitry Torokhov { { 0x20, 0x02, 0x0e }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* XXX */ 1218326bb57SDmitry Torokhov { { 0x22, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 1228326bb57SDmitry Torokhov { { 0x22, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */ 1231d9f2626SSebastian Kapfer /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 1248326bb57SDmitry Torokhov { { 0x62, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, 1258326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, 1268326bb57SDmitry Torokhov { { 0x73, 0x00, 0x14 }, 0x00, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */ 1278326bb57SDmitry Torokhov { { 0x73, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */ 1288326bb57SDmitry Torokhov { { 0x52, 0x01, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, 1298326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */ 1308326bb57SDmitry Torokhov { { 0x73, 0x02, 0x64 }, 0x8a, { ALPS_PROTO_V4, 0x8f, 0x8f, 0 } }, 1311da177e4SLinus Torvalds }; 1321da177e4SLinus Torvalds 1333296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_protocol_data = { 1343296f71cSDmitry Torokhov ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT 1353296f71cSDmitry Torokhov }; 1363296f71cSDmitry Torokhov 1373296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_rushmore_data = { 1383296f71cSDmitry Torokhov ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT 1393296f71cSDmitry Torokhov }; 1403296f71cSDmitry Torokhov 1413296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v5_protocol_data = { 1423296f71cSDmitry Torokhov ALPS_PROTO_V5, 0xc8, 0xd8, 0 1433296f71cSDmitry Torokhov }; 1443296f71cSDmitry Torokhov 1453296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v7_protocol_data = { 1463296f71cSDmitry Torokhov ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT 1473296f71cSDmitry Torokhov }; 1483296f71cSDmitry Torokhov 14924af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 15024af5cb9SKevin Cernekee struct input_dev *dev1); 15124af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 15224af5cb9SKevin Cernekee struct input_dev *dev1); 15324af5cb9SKevin Cernekee 1541da177e4SLinus Torvalds /* 1551da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 1561da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 1571da177e4SLinus Torvalds * isn't valid per PS/2 spec. 1581da177e4SLinus Torvalds */ 1591da177e4SLinus Torvalds 160d4b347b2SSeth Forshee /* Packet formats are described in Documentation/input/alps.txt */ 1611da177e4SLinus Torvalds 16299df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 1631d9f2626SSebastian Kapfer unsigned char data) 1641d9f2626SSebastian Kapfer { 16599df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 1661d9f2626SSebastian Kapfer } 1671d9f2626SSebastian Kapfer 1681d9f2626SSebastian Kapfer static void alps_report_buttons(struct psmouse *psmouse, 1691d9f2626SSebastian Kapfer struct input_dev *dev1, struct input_dev *dev2, 1701d9f2626SSebastian Kapfer int left, int right, int middle) 1711d9f2626SSebastian Kapfer { 1721d9f2626SSebastian Kapfer struct input_dev *dev; 1731d9f2626SSebastian Kapfer 1741d9f2626SSebastian Kapfer /* 1751d9f2626SSebastian Kapfer * If shared button has already been reported on the 1761d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 1771d9f2626SSebastian Kapfer * sent through that device. 1781d9f2626SSebastian Kapfer */ 1791d9f2626SSebastian Kapfer dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; 1801d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 1811d9f2626SSebastian Kapfer 1821d9f2626SSebastian Kapfer dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; 1831d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 1841d9f2626SSebastian Kapfer 1851d9f2626SSebastian Kapfer dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; 1861d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 1871d9f2626SSebastian Kapfer 1881d9f2626SSebastian Kapfer /* 1891d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 1901d9f2626SSebastian Kapfer * device later once we report the rest of the events. 1911d9f2626SSebastian Kapfer */ 1921d9f2626SSebastian Kapfer input_sync(dev2); 1931d9f2626SSebastian Kapfer } 1941d9f2626SSebastian Kapfer 19525bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 1961da177e4SLinus Torvalds { 1971da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1981da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 1992e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 2002e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 2011da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 202c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 2031da177e4SLinus Torvalds 20499df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 205d2f4012fSYotam Medini left = packet[2] & 0x10; 206d2f4012fSYotam Medini right = packet[2] & 0x08; 2071da177e4SLinus Torvalds middle = 0; 2081da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 2091da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 2101da177e4SLinus Torvalds z = packet[5]; 2111da177e4SLinus Torvalds } else { 2121da177e4SLinus Torvalds left = packet[3] & 1; 2131da177e4SLinus Torvalds right = packet[3] & 2; 2141da177e4SLinus Torvalds middle = packet[3] & 4; 2151da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2161da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2171da177e4SLinus Torvalds z = packet[5]; 2181da177e4SLinus Torvalds } 2191da177e4SLinus Torvalds 22099df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2213c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2223c00bb96SLaszlo Kajan forward = packet[2] & 4; 223c30b4c10SIvan Casado Ruiz } 224c30b4c10SIvan Casado Ruiz 22599df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 226c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 227c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 228c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 229c30b4c10SIvan Casado Ruiz forward = back = 0; 230c30b4c10SIvan Casado Ruiz } 231c30b4c10SIvan Casado Ruiz 2321da177e4SLinus Torvalds ges = packet[2] & 1; 2331da177e4SLinus Torvalds fin = packet[2] & 2; 2341da177e4SLinus Torvalds 23599df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2361da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2371da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 238d7ed5d88SUlrich Dangel 2391d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev2, dev, left, right, middle); 240d7ed5d88SUlrich Dangel 2411da177e4SLinus Torvalds input_sync(dev2); 2421da177e4SLinus Torvalds return; 2431da177e4SLinus Torvalds } 2441da177e4SLinus Torvalds 2451d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev, dev2, left, right, middle); 246d7ed5d88SUlrich Dangel 2471da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 24871bb21b6SMaxim Levitsky if (ges && !fin) 24971bb21b6SMaxim Levitsky z = 40; 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds /* 2521da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 2531da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 2541da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 2551da177e4SLinus Torvalds */ 2561da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 2571da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2581da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2591da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 2601da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 2611da177e4SLinus Torvalds input_sync(dev); 2621da177e4SLinus Torvalds } 2631da177e4SLinus Torvalds priv->prev_fin = fin; 2641da177e4SLinus Torvalds 26571bb21b6SMaxim Levitsky if (z > 30) 26671bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 26771bb21b6SMaxim Levitsky if (z < 25) 26871bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 2691da177e4SLinus Torvalds 2701da177e4SLinus Torvalds if (z > 0) { 2711da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2721da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 2761da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 2771da177e4SLinus Torvalds 27899df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) 279e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 2801da177e4SLinus Torvalds 28199df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 282c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 283c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 2841da177e4SLinus Torvalds } 2851da177e4SLinus Torvalds 28699df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 28771bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 28871bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 28971bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 29071bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 29171bb21b6SMaxim Levitsky } 29271bb21b6SMaxim Levitsky 2931da177e4SLinus Torvalds input_sync(dev); 2941da177e4SLinus Torvalds } 2951da177e4SLinus Torvalds 29601ce661fSSeth Forshee /* 297ee65d4b3SYunkang Tang * Process bitmap data for V5 protocols. Return value is null. 298ee65d4b3SYunkang Tang * 299ee65d4b3SYunkang Tang * The bitmaps don't have enough data to track fingers, so this function 300ee65d4b3SYunkang Tang * only generates points representing a bounding box of at most two contacts. 30102d04254SHans de Goede * These two points are returned in fields->mt. 302ee65d4b3SYunkang Tang */ 303ee65d4b3SYunkang Tang static void alps_process_bitmap_dolphin(struct alps_data *priv, 30402d04254SHans de Goede struct alps_fields *fields) 305ee65d4b3SYunkang Tang { 306ee65d4b3SYunkang Tang int box_middle_x, box_middle_y; 307ee65d4b3SYunkang Tang unsigned int x_map, y_map; 308ee65d4b3SYunkang Tang unsigned char start_bit, end_bit; 309ee65d4b3SYunkang Tang unsigned char x_msb, x_lsb, y_msb, y_lsb; 310ee65d4b3SYunkang Tang 311ee65d4b3SYunkang Tang x_map = fields->x_map; 312ee65d4b3SYunkang Tang y_map = fields->y_map; 313ee65d4b3SYunkang Tang 314ee65d4b3SYunkang Tang if (!x_map || !y_map) 315ee65d4b3SYunkang Tang return; 316ee65d4b3SYunkang Tang 317ee65d4b3SYunkang Tang /* Get Most-significant and Least-significant bit */ 318ee65d4b3SYunkang Tang x_msb = fls(x_map); 319ee65d4b3SYunkang Tang x_lsb = ffs(x_map); 320ee65d4b3SYunkang Tang y_msb = fls(y_map); 321ee65d4b3SYunkang Tang y_lsb = ffs(y_map); 322ee65d4b3SYunkang Tang 323ee65d4b3SYunkang Tang /* Most-significant bit should never exceed max sensor line number */ 324ee65d4b3SYunkang Tang if (x_msb > priv->x_bits || y_msb > priv->y_bits) 325ee65d4b3SYunkang Tang return; 326ee65d4b3SYunkang Tang 327ee65d4b3SYunkang Tang if (fields->fingers > 1) { 328ee65d4b3SYunkang Tang start_bit = priv->x_bits - x_msb; 329ee65d4b3SYunkang Tang end_bit = priv->x_bits - x_lsb; 330ee65d4b3SYunkang Tang box_middle_x = (priv->x_max * (start_bit + end_bit)) / 331ee65d4b3SYunkang Tang (2 * (priv->x_bits - 1)); 332ee65d4b3SYunkang Tang 333ee65d4b3SYunkang Tang start_bit = y_lsb - 1; 334ee65d4b3SYunkang Tang end_bit = y_msb - 1; 335ee65d4b3SYunkang Tang box_middle_y = (priv->y_max * (start_bit + end_bit)) / 336ee65d4b3SYunkang Tang (2 * (priv->y_bits - 1)); 33702d04254SHans de Goede fields->mt[0] = fields->st; 33802d04254SHans de Goede fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x; 33902d04254SHans de Goede fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y; 340ee65d4b3SYunkang Tang } 341ee65d4b3SYunkang Tang } 342ee65d4b3SYunkang Tang 343036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 344036e6c7bSHans de Goede struct alps_bitmap_point *low, 345036e6c7bSHans de Goede struct alps_bitmap_point *high, 346036e6c7bSHans de Goede int *fingers) 347036e6c7bSHans de Goede { 348036e6c7bSHans de Goede struct alps_bitmap_point *point; 349036e6c7bSHans de Goede int i, bit, prev_bit = 0; 350036e6c7bSHans de Goede 351036e6c7bSHans de Goede point = low; 352036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 353036e6c7bSHans de Goede bit = map & 1; 354036e6c7bSHans de Goede if (bit) { 355036e6c7bSHans de Goede if (!prev_bit) { 356036e6c7bSHans de Goede point->start_bit = i; 357105affbfSHans de Goede point->num_bits = 0; 358036e6c7bSHans de Goede (*fingers)++; 359036e6c7bSHans de Goede } 360036e6c7bSHans de Goede point->num_bits++; 361036e6c7bSHans de Goede } else { 362036e6c7bSHans de Goede if (prev_bit) 363036e6c7bSHans de Goede point = high; 364036e6c7bSHans de Goede } 365036e6c7bSHans de Goede prev_bit = bit; 366036e6c7bSHans de Goede } 367036e6c7bSHans de Goede } 368036e6c7bSHans de Goede 369ee65d4b3SYunkang Tang /* 37001ce661fSSeth Forshee * Process bitmap data from v3 and v4 protocols. Returns the number of 37101ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 37201ce661fSSeth Forshee * bitmaps was empty. 37301ce661fSSeth Forshee * 37401ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 37501ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 37602d04254SHans de Goede * These points are returned in fields->mt when the return value 37701ce661fSSeth Forshee * is greater than 0. 37801ce661fSSeth Forshee */ 3797a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 38002d04254SHans de Goede struct alps_fields *fields) 38101ce661fSSeth Forshee { 382036e6c7bSHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers; 38301ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 38401ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 38501ce661fSSeth Forshee 38602d04254SHans de Goede if (!fields->x_map || !fields->y_map) 38701ce661fSSeth Forshee return 0; 38801ce661fSSeth Forshee 38902d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 39002d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 39101ce661fSSeth Forshee 39201ce661fSSeth Forshee /* 39301ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 39401ce661fSSeth Forshee * on either axis as the finger count. 39501ce661fSSeth Forshee */ 39601ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 39701ce661fSSeth Forshee 39801ce661fSSeth Forshee /* 39920bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 40020bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 40101ce661fSSeth Forshee */ 40201ce661fSSeth Forshee if (fingers_x == 1) { 40328835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 40401ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 40501ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 40601ce661fSSeth Forshee x_high.num_bits = max(i, 1); 40720bea68bSHans de Goede } 40820bea68bSHans de Goede if (fingers_y == 1) { 40928835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 41001ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 41101ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 41201ce661fSSeth Forshee y_high.num_bits = max(i, 1); 41301ce661fSSeth Forshee } 41401ce661fSSeth Forshee 41502d04254SHans de Goede fields->mt[0].x = 41602d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4177a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 41802d04254SHans de Goede fields->mt[0].y = 41902d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4207a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 42101ce661fSSeth Forshee 42202d04254SHans de Goede fields->mt[1].x = 42302d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4247a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 42502d04254SHans de Goede fields->mt[1].y = 42602d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4277a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 42801ce661fSSeth Forshee 42940e8f53bSHans de Goede /* y-bitmap order is reversed, except on rushmore */ 430fb2dd7a6SDmitry Torokhov if (priv->proto_version != ALPS_PROTO_V3_RUSHMORE) { 43102d04254SHans de Goede fields->mt[0].y = priv->y_max - fields->mt[0].y; 43202d04254SHans de Goede fields->mt[1].y = priv->y_max - fields->mt[1].y; 43340e8f53bSHans de Goede } 43440e8f53bSHans de Goede 43501ce661fSSeth Forshee return fingers; 43601ce661fSSeth Forshee } 43701ce661fSSeth Forshee 438cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 43901ce661fSSeth Forshee { 44001ce661fSSeth Forshee input_mt_slot(dev, slot); 441cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 44201ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 44301ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 44401ce661fSSeth Forshee } 44501ce661fSSeth Forshee 446cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 44701ce661fSSeth Forshee { 44802d04254SHans de Goede struct alps_data *priv = psmouse->private; 44902d04254SHans de Goede struct input_dev *dev = psmouse->dev; 45002d04254SHans de Goede struct alps_fields *f = &priv->f; 451cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 45202d04254SHans de Goede 453448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 454cdf333efSHans de Goede for (i = 0; i < n; i++) 455cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 456cdf333efSHans de Goede 457cdf333efSHans de Goede input_mt_sync_frame(dev); 45801ce661fSSeth Forshee } 45901ce661fSSeth Forshee 46068c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 46168c21870SHans de Goede { 46268c21870SHans de Goede struct alps_data *priv = psmouse->private; 46368c21870SHans de Goede struct input_dev *dev = psmouse->dev; 46468c21870SHans de Goede struct alps_fields *f = &priv->f; 46568c21870SHans de Goede 46668c21870SHans de Goede /* Use st data when we don't have mt data */ 46768c21870SHans de Goede if (fingers < 2) { 46868c21870SHans de Goede f->mt[0].x = f->st.x; 46968c21870SHans de Goede f->mt[0].y = f->st.y; 47068c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 47168c21870SHans de Goede } 47268c21870SHans de Goede 47399d9996cSHans de Goede alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2); 47468c21870SHans de Goede 47568c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 47668c21870SHans de Goede 47768c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 47868c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 47968c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 48068c21870SHans de Goede 48168c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 48268c21870SHans de Goede 48368c21870SHans de Goede input_sync(dev); 48468c21870SHans de Goede } 48568c21870SHans de Goede 48625bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 48725bded7cSSeth Forshee { 48825bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 48925bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 49025bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 49125bded7cSSeth Forshee int x, y, z, left, right, middle; 49225bded7cSSeth Forshee 49334412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 49434412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 49534412ba2SPali Rohár psmouse_warn(psmouse, 49634412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 49734412ba2SPali Rohár return; 49834412ba2SPali Rohár } 49934412ba2SPali Rohár 50025bded7cSSeth Forshee /* Sanity check packet */ 50125bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 50225bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 50325bded7cSSeth Forshee return; 50425bded7cSSeth Forshee } 50525bded7cSSeth Forshee 50625bded7cSSeth Forshee /* 50725bded7cSSeth Forshee * There's a special packet that seems to indicate the end 50825bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 50925bded7cSSeth Forshee */ 51025bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 51125bded7cSSeth Forshee return; 51225bded7cSSeth Forshee 51325bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 51425bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 51525bded7cSSeth Forshee z = (packet[4] & 0x7c) >> 2; 51625bded7cSSeth Forshee 51725bded7cSSeth Forshee /* 51825bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 51925bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 52025bded7cSSeth Forshee * to compensate. 52125bded7cSSeth Forshee */ 52225bded7cSSeth Forshee x /= 8; 52325bded7cSSeth Forshee y /= 8; 52425bded7cSSeth Forshee 52525bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 52625bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 52725bded7cSSeth Forshee 52825bded7cSSeth Forshee /* 52925bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 53025bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 53125bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 53225bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 53325bded7cSSeth Forshee * packet. 53425bded7cSSeth Forshee */ 53525bded7cSSeth Forshee left = packet[3] & 0x01; 53625bded7cSSeth Forshee right = packet[3] & 0x02; 53725bded7cSSeth Forshee middle = packet[3] & 0x04; 53825bded7cSSeth Forshee 53925bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 54025bded7cSSeth Forshee (left || right || middle)) 54125bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 54225bded7cSSeth Forshee 54325bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 54425bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 54525bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 54625bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 54725bded7cSSeth Forshee } 54825bded7cSSeth Forshee 54925bded7cSSeth Forshee input_sync(dev); 55025bded7cSSeth Forshee return; 55125bded7cSSeth Forshee } 55225bded7cSSeth Forshee 553f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 554f85e5001SKevin Cernekee { 555f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 556f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 557f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 558f85e5001SKevin Cernekee 559f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 560f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 561f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 562f85e5001SKevin Cernekee } 563f85e5001SKevin Cernekee 56438c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 565ee65d4b3SYunkang Tang struct psmouse *psmouse) 566f85e5001SKevin Cernekee { 567f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 568f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 569f85e5001SKevin Cernekee 570f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 571f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 572f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 573f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 574f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 575f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 576f85e5001SKevin Cernekee (p[4] & 0x01); 577f85e5001SKevin Cernekee 57802d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 579f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 58002d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 58102d04254SHans de Goede f->pressure = p[5] & 0x7f; 582f85e5001SKevin Cernekee 583f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 58438c11eaaSHans de Goede 58538c11eaaSHans de Goede return 0; 586f85e5001SKevin Cernekee } 587f85e5001SKevin Cernekee 58838c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 589ee65d4b3SYunkang Tang struct psmouse *psmouse) 5901302bac3SKevin Cernekee { 591ee65d4b3SYunkang Tang alps_decode_pinnacle(f, p, psmouse); 5921302bac3SKevin Cernekee 593f105e34aSYunkang Tang /* Rushmore's packet decode has a bit difference with Pinnacle's */ 594f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 595f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 5961302bac3SKevin Cernekee f->x_map |= (p[5] & 0x10) << 11; 5971302bac3SKevin Cernekee f->y_map |= (p[5] & 0x20) << 6; 59838c11eaaSHans de Goede 59938c11eaaSHans de Goede return 0; 6001302bac3SKevin Cernekee } 6011302bac3SKevin Cernekee 60238c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 603ee65d4b3SYunkang Tang struct psmouse *psmouse) 60475af9e56SDave Turvene { 605ee65d4b3SYunkang Tang u64 palm_data = 0; 606ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 607ee65d4b3SYunkang Tang 60875af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 60975af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 61075af9e56SDave Turvene 611ee65d4b3SYunkang Tang if (!f->is_mp) { 61202d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 61302d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 61402d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 61575af9e56SDave Turvene alps_decode_buttons_v3(f, p); 616ee65d4b3SYunkang Tang } else { 617ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 618ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 619ee65d4b3SYunkang Tang 620ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 621ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 622ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 623ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 624ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 625ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 626ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 627ee65d4b3SYunkang Tang 628ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 629ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 630ee65d4b3SYunkang Tang 631ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 632ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 633ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 634ee65d4b3SYunkang Tang } 63538c11eaaSHans de Goede 63638c11eaaSHans de Goede return 0; 63775af9e56SDave Turvene } 63875af9e56SDave Turvene 639ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 64025bded7cSSeth Forshee { 64125bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 64225bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 64325bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 64402d04254SHans de Goede struct alps_fields *f = &priv->f; 64502d04254SHans de Goede int fingers = 0; 646f85e5001SKevin Cernekee 64702d04254SHans de Goede memset(f, 0, sizeof(*f)); 64802d04254SHans de Goede 64902d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 65025bded7cSSeth Forshee 65125bded7cSSeth Forshee /* 65201ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 65301ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 65401ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 65501ce661fSSeth Forshee * bit 6 of packet[4] set. 65625bded7cSSeth Forshee */ 65725bded7cSSeth Forshee if (priv->multi_packet) { 65825bded7cSSeth Forshee /* 65925bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 66025bded7cSSeth Forshee * sequence, but then what follows is another position 66125bded7cSSeth Forshee * packet. Check for this, and when it happens process the 66225bded7cSSeth Forshee * position packet as usual. 66325bded7cSSeth Forshee */ 66402d04254SHans de Goede if (f->is_mp) { 66502d04254SHans de Goede fingers = f->fingers; 666fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3 || 667fb2dd7a6SDmitry Torokhov priv->proto_version == ALPS_PROTO_V3_RUSHMORE) { 66802d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 66920bea68bSHans de Goede fingers = 0; /* Use st data */ 67001ce661fSSeth Forshee 67101ce661fSSeth Forshee /* Now process position packet */ 67202d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 673ee65d4b3SYunkang Tang psmouse); 674ee65d4b3SYunkang Tang } else { 675ee65d4b3SYunkang Tang /* 676ee65d4b3SYunkang Tang * Because Dolphin uses position packet's 677ee65d4b3SYunkang Tang * coordinate data as Pt1 and uses it to 678ee65d4b3SYunkang Tang * calculate Pt2, so we need to do position 679ee65d4b3SYunkang Tang * packet decode first. 680ee65d4b3SYunkang Tang */ 68102d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 682ee65d4b3SYunkang Tang psmouse); 683ee65d4b3SYunkang Tang 684ee65d4b3SYunkang Tang /* 685ee65d4b3SYunkang Tang * Since Dolphin's finger number is reliable, 686ee65d4b3SYunkang Tang * there is no need to compare with bmap_fn. 687ee65d4b3SYunkang Tang */ 68802d04254SHans de Goede alps_process_bitmap_dolphin(priv, f); 689ee65d4b3SYunkang Tang } 69001ce661fSSeth Forshee } else { 69101ce661fSSeth Forshee priv->multi_packet = 0; 69225bded7cSSeth Forshee } 69325bded7cSSeth Forshee } 69425bded7cSSeth Forshee 69501ce661fSSeth Forshee /* 69601ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 69701ce661fSSeth Forshee * times it seems to be set is in situations where the data is 69801ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 69901ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 70001ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 70101ce661fSSeth Forshee * bit set. 70201ce661fSSeth Forshee */ 70302d04254SHans de Goede if (f->is_mp) 70401ce661fSSeth Forshee return; 70501ce661fSSeth Forshee 70602d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 70725bded7cSSeth Forshee priv->multi_packet = 1; 70801ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 70901ce661fSSeth Forshee return; 71001ce661fSSeth Forshee } 71101ce661fSSeth Forshee 71225bded7cSSeth Forshee priv->multi_packet = 0; 71325bded7cSSeth Forshee 71425bded7cSSeth Forshee /* 71525bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 71625bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 71725bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 71825bded7cSSeth Forshee * Ignore them. 71925bded7cSSeth Forshee */ 72002d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 72125bded7cSSeth Forshee return; 72225bded7cSSeth Forshee 72368c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 72425bded7cSSeth Forshee 72534412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 72634412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 72702d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 72802d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 72902d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 73025bded7cSSeth Forshee input_sync(dev2); 73125bded7cSSeth Forshee } 73225bded7cSSeth Forshee } 73325bded7cSSeth Forshee 73425bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 73525bded7cSSeth Forshee { 73625bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 73725bded7cSSeth Forshee 73825bded7cSSeth Forshee /* 73925bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 74025bded7cSSeth Forshee * touchpad data and one representing trackstick data. 74125bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 74225bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 74325bded7cSSeth Forshee * observed in the last byte of either of the other types 74425bded7cSSeth Forshee * of packets. 74525bded7cSSeth Forshee */ 74625bded7cSSeth Forshee if (packet[5] == 0x3f) { 74725bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 74825bded7cSSeth Forshee return; 74925bded7cSSeth Forshee } 75025bded7cSSeth Forshee 751ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 75225bded7cSSeth Forshee } 75325bded7cSSeth Forshee 75495f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 75595f75e91SYunkang Tang { 75695f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 75795f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 75895f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 75995f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 76095f75e91SYunkang Tang int x, y, z, left, right, middle; 76195f75e91SYunkang Tang 76295f75e91SYunkang Tang /* 76395f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 76495f75e91SYunkang Tang * or Trackpoint. 76595f75e91SYunkang Tang * Touchpad: 0 - 0x7E 76695f75e91SYunkang Tang * Trackpoint: 0x7F 76795f75e91SYunkang Tang */ 76895f75e91SYunkang Tang if (packet[5] == 0x7F) { 76995f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 77034412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 77134412ba2SPali Rohár psmouse_warn(psmouse, 77234412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 77395f75e91SYunkang Tang return; 77434412ba2SPali Rohár } 77595f75e91SYunkang Tang 77695f75e91SYunkang Tang /* Trackpoint packet */ 77795f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 77895f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 77995f75e91SYunkang Tang z = packet[4]; 78095f75e91SYunkang Tang left = packet[3] & 0x01; 78195f75e91SYunkang Tang right = packet[3] & 0x02; 78295f75e91SYunkang Tang middle = packet[3] & 0x04; 78395f75e91SYunkang Tang 78495f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 78595f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 78695f75e91SYunkang Tang x = y = z = 0; 78795f75e91SYunkang Tang 78895f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 78995f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 79095f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 79195f75e91SYunkang Tang 79295f75e91SYunkang Tang input_report_key(dev2, BTN_LEFT, left); 79395f75e91SYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 79495f75e91SYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 79595f75e91SYunkang Tang 79695f75e91SYunkang Tang input_sync(dev2); 79795f75e91SYunkang Tang return; 79895f75e91SYunkang Tang } 79995f75e91SYunkang Tang 80095f75e91SYunkang Tang /* Touchpad packet */ 80195f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 80295f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 80395f75e91SYunkang Tang z = packet[5]; 80495f75e91SYunkang Tang left = packet[3] & 0x01; 80595f75e91SYunkang Tang right = packet[3] & 0x02; 80695f75e91SYunkang Tang 80795f75e91SYunkang Tang if (z > 30) 80895f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 80995f75e91SYunkang Tang if (z < 25) 81095f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 81195f75e91SYunkang Tang 81295f75e91SYunkang Tang if (z > 0) { 81395f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 81495f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 81595f75e91SYunkang Tang } 81695f75e91SYunkang Tang 81795f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 81895f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 81995f75e91SYunkang Tang 82095f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 82195f75e91SYunkang Tang input_report_key(dev, BTN_LEFT, left); 82295f75e91SYunkang Tang input_report_key(dev, BTN_RIGHT, right); 82395f75e91SYunkang Tang 82495f75e91SYunkang Tang input_sync(dev); 82595f75e91SYunkang Tang } 82695f75e91SYunkang Tang 82725bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 82825bded7cSSeth Forshee { 8293b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 83025bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 83102d04254SHans de Goede struct alps_fields *f = &priv->f; 83268c21870SHans de Goede int offset; 8333b7e09faSGeorge Pantalos 8343b7e09faSGeorge Pantalos /* 8353b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8363b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8373b7e09faSGeorge Pantalos * track our position in the bitmap packet. 8383b7e09faSGeorge Pantalos */ 8393b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 8403b7e09faSGeorge Pantalos /* sync, reset position */ 8413b7e09faSGeorge Pantalos priv->multi_packet = 0; 8423b7e09faSGeorge Pantalos } 8433b7e09faSGeorge Pantalos 8443b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 8453b7e09faSGeorge Pantalos return; 8463b7e09faSGeorge Pantalos 8473b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 8483b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 8493b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 8503b7e09faSGeorge Pantalos 8513b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 8523b7e09faSGeorge Pantalos priv->multi_packet = 0; 8533b7e09faSGeorge Pantalos 85402d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 8553b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 8563b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 8573b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 85802d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 8593b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 8603b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 8613b7e09faSGeorge Pantalos 86202d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 8633b7e09faSGeorge Pantalos } 86425bded7cSSeth Forshee 865b0cfb794SAndreas Bosch f->left = !!(packet[4] & 0x01); 866b0cfb794SAndreas Bosch f->right = !!(packet[4] & 0x02); 86725bded7cSSeth Forshee 86802d04254SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 86925bded7cSSeth Forshee ((packet[0] & 0x30) >> 4); 87002d04254SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 87102d04254SHans de Goede f->pressure = packet[5] & 0x7f; 87225bded7cSSeth Forshee 87368c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 87425bded7cSSeth Forshee } 87525bded7cSSeth Forshee 8763808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 8773808843cSYunkang Tang { 8783808843cSYunkang Tang switch (psmouse->pktcnt) { 8793808843cSYunkang Tang case 3: 8803808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 8813808843cSYunkang Tang case 4: 8823808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 8833808843cSYunkang Tang case 6: 8843808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 8853808843cSYunkang Tang } 8863808843cSYunkang Tang return true; 8873808843cSYunkang Tang } 8883808843cSYunkang Tang 8893808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 8903808843cSYunkang Tang { 8913808843cSYunkang Tang unsigned char packet_id; 8923808843cSYunkang Tang 8933808843cSYunkang Tang if (byte[4] & 0x40) 8943808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 8953808843cSYunkang Tang else if (byte[4] & 0x01) 8963808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 8973808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 8983808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 8993808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 9003808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 9013808843cSYunkang Tang else 9023808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 9033808843cSYunkang Tang 9043808843cSYunkang Tang return packet_id; 9053808843cSYunkang Tang } 9063808843cSYunkang Tang 9073808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 9083808843cSYunkang Tang unsigned char *pkt, 9093808843cSYunkang Tang unsigned char pkt_id) 9103808843cSYunkang Tang { 91127a560baSHans de Goede /* 91227a560baSHans de Goede * packet-fmt b7 b6 b5 b4 b3 b2 b1 b0 91327a560baSHans de Goede * Byte0 TWO & MULTI L 1 R M 1 Y0-2 Y0-1 Y0-0 91427a560baSHans de Goede * Byte0 NEW L 1 X1-5 1 1 Y0-2 Y0-1 Y0-0 91527a560baSHans de Goede * Byte1 Y0-10 Y0-9 Y0-8 Y0-7 Y0-6 Y0-5 Y0-4 Y0-3 91627a560baSHans de Goede * Byte2 X0-11 1 X0-10 X0-9 X0-8 X0-7 X0-6 X0-5 91727a560baSHans de Goede * Byte3 X1-11 1 X0-4 X0-3 1 X0-2 X0-1 X0-0 91827a560baSHans de Goede * Byte4 TWO X1-10 TWO X1-9 X1-8 X1-7 X1-6 X1-5 X1-4 91927a560baSHans de Goede * Byte4 MULTI X1-10 TWO X1-9 X1-8 X1-7 X1-6 Y1-5 1 92027a560baSHans de Goede * Byte4 NEW X1-10 TWO X1-9 X1-8 X1-7 X1-6 0 0 92127a560baSHans de Goede * Byte5 TWO & NEW Y1-10 0 Y1-9 Y1-8 Y1-7 Y1-6 Y1-5 Y1-4 92227a560baSHans de Goede * Byte5 MULTI Y1-10 0 Y1-9 Y1-8 Y1-7 Y1-6 F-1 F-0 92327a560baSHans de Goede * L: Left button 92427a560baSHans de Goede * R / M: Non-clickpads: Right / Middle button 92527a560baSHans de Goede * Clickpads: When > 2 fingers are down, and some fingers 92627a560baSHans de Goede * are in the button area, then the 2 coordinates reported 92727a560baSHans de Goede * are for fingers outside the button area and these report 92827a560baSHans de Goede * extra fingers being present in the right / left button 92927a560baSHans de Goede * area. Note these fingers are not added to the F field! 93027a560baSHans de Goede * so if a TWO packet is received and R = 1 then there are 93127a560baSHans de Goede * 3 fingers down, etc. 93227a560baSHans de Goede * TWO: 1: Two touches present, byte 0/4/5 are in TWO fmt 93327a560baSHans de Goede * 0: If byte 4 bit 0 is 1, then byte 0/4/5 are in MULTI fmt 93427a560baSHans de Goede * otherwise byte 0 bit 4 must be set and byte 0/4/5 are 93527a560baSHans de Goede * in NEW fmt 93627a560baSHans de Goede * F: Number of fingers - 3, 0 means 3 fingers, 1 means 4 ... 93727a560baSHans de Goede */ 93827a560baSHans de Goede 9393808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9403808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9413808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9423808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9433808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9443808843cSYunkang Tang 9453808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9463808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9473808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9483808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9493808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9503808843cSYunkang Tang 9513808843cSYunkang Tang switch (pkt_id) { 9523808843cSYunkang Tang case V7_PACKET_ID_TWO: 9533808843cSYunkang Tang mt[1].x &= ~0x000F; 9543808843cSYunkang Tang mt[1].y |= 0x000F; 9553808843cSYunkang Tang break; 9563808843cSYunkang Tang 9573808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9583808843cSYunkang Tang mt[1].x &= ~0x003F; 9593808843cSYunkang Tang mt[1].y &= ~0x0020; 9603808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 9613808843cSYunkang Tang mt[1].y |= 0x001F; 9623808843cSYunkang Tang break; 9633808843cSYunkang Tang 9643808843cSYunkang Tang case V7_PACKET_ID_NEW: 9653808843cSYunkang Tang mt[1].x &= ~0x003F; 9663808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 9673808843cSYunkang Tang mt[1].y |= 0x000F; 9683808843cSYunkang Tang break; 9693808843cSYunkang Tang } 9703808843cSYunkang Tang 9713808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 9723808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 9733808843cSYunkang Tang } 9743808843cSYunkang Tang 9753808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 9763808843cSYunkang Tang { 9777091c443SHans de Goede int i, fingers = 0; 9783808843cSYunkang Tang 9797091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 9807091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 9817091c443SHans de Goede fingers++; 9827091c443SHans de Goede } 9833808843cSYunkang Tang 9847091c443SHans de Goede return fingers; 9853808843cSYunkang Tang } 9863808843cSYunkang Tang 9873808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 9883808843cSYunkang Tang unsigned char *p, 9893808843cSYunkang Tang struct psmouse *psmouse) 9903808843cSYunkang Tang { 991d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 9923808843cSYunkang Tang unsigned char pkt_id; 9933808843cSYunkang Tang 9943808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 9953808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 9963808843cSYunkang Tang return 0; 9973808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 9983808843cSYunkang Tang return -1; 9998b238115SHans de Goede /* 10008b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 10018b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 10028b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 10038b238115SHans de Goede * us. 10048b238115SHans de Goede * 10058b238115SHans de Goede * NEW packets have 3 problems: 10068b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 10078b238115SHans de Goede * this can be worked around by preserving the old button state 10088b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 10098b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 10108b238115SHans de Goede * the old finger count as that may mismatch with the amount of 10118b238115SHans de Goede * touch coordinates we've available in the NEW packet 10128b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 10138b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 10148b238115SHans de Goede * non NEW packet comes in 10158b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 10168b238115SHans de Goede */ 10178b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 10188b238115SHans de Goede return 1; 10193808843cSYunkang Tang 10203808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 10213808843cSYunkang Tang 10223808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 10233808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 10248b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 10253808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 10263808843cSYunkang Tang 1027d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1028d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1029d27eb793SHans de Goede if (p[0] & 0x20) 1030d27eb793SHans de Goede f->fingers++; 1031d27eb793SHans de Goede if (p[0] & 0x10) 1032d27eb793SHans de Goede f->fingers++; 1033d27eb793SHans de Goede } else { 1034d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1035d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1036d27eb793SHans de Goede } 1037d27eb793SHans de Goede 10387091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10397091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10407091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10417091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10427091c443SHans de Goede f->mt[1].x = 0; 10437091c443SHans de Goede f->mt[1].y = 0; 10447091c443SHans de Goede } 10457091c443SHans de Goede 10463808843cSYunkang Tang return 0; 10473808843cSYunkang Tang } 10483808843cSYunkang Tang 10493808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10503808843cSYunkang Tang { 10513808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10523808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10533808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10543808843cSYunkang Tang int x, y, z, left, right, middle; 10553808843cSYunkang Tang 105634412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 105734412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 105834412ba2SPali Rohár psmouse_warn(psmouse, 105934412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 106034412ba2SPali Rohár return; 106134412ba2SPali Rohár } 106234412ba2SPali Rohár 10633808843cSYunkang Tang /* 10643808843cSYunkang Tang * b7 b6 b5 b4 b3 b2 b1 b0 10653808843cSYunkang Tang * Byte0 0 1 0 0 1 0 0 0 10663808843cSYunkang Tang * Byte1 1 1 * * 1 M R L 10673808843cSYunkang Tang * Byte2 X7 1 X5 X4 X3 X2 X1 X0 10683808843cSYunkang Tang * Byte3 Z6 1 Y6 X6 1 Y2 Y1 Y0 10693808843cSYunkang Tang * Byte4 Y7 0 Y5 Y4 Y3 1 1 0 10703808843cSYunkang Tang * Byte5 T&P 0 Z5 Z4 Z3 Z2 Z1 Z0 10713808843cSYunkang Tang * M / R / L: Middle / Right / Left button 10723808843cSYunkang Tang */ 10733808843cSYunkang Tang 10743808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 10753808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 10763808843cSYunkang Tang ((packet[3] & 0x20) << 1); 10773808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 10783808843cSYunkang Tang 10793808843cSYunkang Tang left = (packet[1] & 0x01); 10803808843cSYunkang Tang right = (packet[1] & 0x02) >> 1; 10813808843cSYunkang Tang middle = (packet[1] & 0x04) >> 2; 10823808843cSYunkang Tang 10833808843cSYunkang Tang /* Divide 2 since trackpoint's speed is too fast */ 10843808843cSYunkang Tang input_report_rel(dev2, REL_X, (char)x / 2); 10853808843cSYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 2)); 10863808843cSYunkang Tang 10873808843cSYunkang Tang input_report_key(dev2, BTN_LEFT, left); 10883808843cSYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 10893808843cSYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 10903808843cSYunkang Tang 10913808843cSYunkang Tang input_sync(dev2); 10923808843cSYunkang Tang } 10933808843cSYunkang Tang 10943808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 10953808843cSYunkang Tang { 10963808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10973808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 10983808843cSYunkang Tang struct alps_fields *f = &priv->f; 10993808843cSYunkang Tang 11003808843cSYunkang Tang memset(f, 0, sizeof(*f)); 11013808843cSYunkang Tang 11023808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 11033808843cSYunkang Tang return; 11043808843cSYunkang Tang 11053808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 11063808843cSYunkang Tang 11073808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 11083808843cSYunkang Tang 11093808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 11103808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 11113808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 11123808843cSYunkang Tang 11133808843cSYunkang Tang input_sync(dev); 11143808843cSYunkang Tang } 11153808843cSYunkang Tang 11163808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 11173808843cSYunkang Tang { 11183808843cSYunkang Tang unsigned char *packet = psmouse->packet; 11193808843cSYunkang Tang 11203808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 11213808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 11223808843cSYunkang Tang else 11233808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 11243808843cSYunkang Tang } 11253808843cSYunkang Tang 11261d9f2626SSebastian Kapfer static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 11271d9f2626SSebastian Kapfer unsigned char packet[], 11281d9f2626SSebastian Kapfer bool report_buttons) 11291d9f2626SSebastian Kapfer { 11301d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 11311d9f2626SSebastian Kapfer struct input_dev *dev2 = priv->dev2; 11321d9f2626SSebastian Kapfer 11331d9f2626SSebastian Kapfer if (report_buttons) 11341d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev2, psmouse->dev, 11351d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 11361d9f2626SSebastian Kapfer 11371d9f2626SSebastian Kapfer input_report_rel(dev2, REL_X, 11381d9f2626SSebastian Kapfer packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 11391d9f2626SSebastian Kapfer input_report_rel(dev2, REL_Y, 11401d9f2626SSebastian Kapfer packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 11411d9f2626SSebastian Kapfer 11421d9f2626SSebastian Kapfer input_sync(dev2); 11431d9f2626SSebastian Kapfer } 11441d9f2626SSebastian Kapfer 11451d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 11461da177e4SLinus Torvalds { 11471da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 11481da177e4SLinus Torvalds 11491d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 11501d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 11511d9f2626SSebastian Kapfer 11521d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 11531d9f2626SSebastian Kapfer /* 11541d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 11551d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 11561d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 11571d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 11581d9f2626SSebastian Kapfer */ 11591d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 11601d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 11611d9f2626SSebastian Kapfer } 11621d9f2626SSebastian Kapfer 11631d9f2626SSebastian Kapfer del_timer(&priv->timer); 11641d9f2626SSebastian Kapfer 11651d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 11661d9f2626SSebastian Kapfer 11671d9f2626SSebastian Kapfer /* 11681d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 11691d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 11701d9f2626SSebastian Kapfer * next packet or we got garbage. 11711d9f2626SSebastian Kapfer */ 11721d9f2626SSebastian Kapfer 11731d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 11741d9f2626SSebastian Kapfer psmouse->packet[4] | 11751d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 117699df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1177b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 11783b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 11793b112923SAndy Shevchenko psmouse->packet + 3); 11801d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 11811d9f2626SSebastian Kapfer } 11821d9f2626SSebastian Kapfer 118324af5cb9SKevin Cernekee priv->process_packet(psmouse); 11841d9f2626SSebastian Kapfer 11851d9f2626SSebastian Kapfer /* Continue with the next packet */ 11861d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 11871d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 11881d9f2626SSebastian Kapfer 11891d9f2626SSebastian Kapfer } else { 11901d9f2626SSebastian Kapfer 11911d9f2626SSebastian Kapfer /* 11921d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 11931d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 11941d9f2626SSebastian Kapfer * 11951d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 11961d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 11971d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1198b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 11991d9f2626SSebastian Kapfer * normal operation (user would need to press all 12001d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 12011d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 12021d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 12031d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1204b5d21704SDmitry Torokhov * de-synchronization. 12051d9f2626SSebastian Kapfer */ 12061d9f2626SSebastian Kapfer 12071d9f2626SSebastian Kapfer alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 12081d9f2626SSebastian Kapfer false); 12091d9f2626SSebastian Kapfer 12101d9f2626SSebastian Kapfer /* 12111d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 12121d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 12131d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 12141d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 12151d9f2626SSebastian Kapfer * is normally 1. 12161d9f2626SSebastian Kapfer */ 12171d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 12181d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 12191d9f2626SSebastian Kapfer } 12201d9f2626SSebastian Kapfer 12211d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12221d9f2626SSebastian Kapfer } 12231d9f2626SSebastian Kapfer 12241d9f2626SSebastian Kapfer static void alps_flush_packet(unsigned long data) 12251d9f2626SSebastian Kapfer { 12261d9f2626SSebastian Kapfer struct psmouse *psmouse = (struct psmouse *)data; 122724af5cb9SKevin Cernekee struct alps_data *priv = psmouse->private; 12281d9f2626SSebastian Kapfer 12291d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 12301d9f2626SSebastian Kapfer 1231b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 12321d9f2626SSebastian Kapfer 12331d9f2626SSebastian Kapfer /* 12341d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 12351d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 12361d9f2626SSebastian Kapfer * ALPS packet. 12371d9f2626SSebastian Kapfer */ 12381d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 12391d9f2626SSebastian Kapfer psmouse->packet[4] | 12401d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1241b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12423b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 12433b112923SAndy Shevchenko psmouse->packet + 3); 12441d9f2626SSebastian Kapfer } else { 124524af5cb9SKevin Cernekee priv->process_packet(psmouse); 12461d9f2626SSebastian Kapfer } 12471d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 12481d9f2626SSebastian Kapfer } 12491d9f2626SSebastian Kapfer 12501d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 12511d9f2626SSebastian Kapfer } 12521d9f2626SSebastian Kapfer 12531d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 12541d9f2626SSebastian Kapfer { 12551d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 12561d9f2626SSebastian Kapfer 12574ab8f7f3SPali Rohár /* 12584ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 12594ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 12604ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 12614ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 12624ab8f7f3SPali Rohár */ 12634ab8f7f3SPali Rohár if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) { 12641da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 12651d9f2626SSebastian Kapfer alps_report_bare_ps2_packet(psmouse, psmouse->packet, 12661d9f2626SSebastian Kapfer true); 12671da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 12681da177e4SLinus Torvalds } 12691da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 12701da177e4SLinus Torvalds } 12711da177e4SLinus Torvalds 12721d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 12731d9f2626SSebastian Kapfer 127499df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 12751d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 12761d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 12771d9f2626SSebastian Kapfer } 12781d9f2626SSebastian Kapfer 127999df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1280b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1281b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 128299df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 12831da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 12841d9f2626SSebastian Kapfer } 12851da177e4SLinus Torvalds 1286b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1287a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 128875af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 12891d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1290b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1291b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1292b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1293a7ef82aeSPali Rohár 1294fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && 1295a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1296a7ef82aeSPali Rohár /* 1297a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1298a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1299a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1300a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1301a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1302a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1303a7ef82aeSPali Rohár * filling the logs. 1304a7ef82aeSPali Rohár */ 1305a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1306a7ef82aeSPali Rohár } 1307a7ef82aeSPali Rohár 13081da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 13091d9f2626SSebastian Kapfer } 13101da177e4SLinus Torvalds 13113808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7 && 13123808843cSYunkang Tang !alps_is_valid_package_v7(psmouse)) { 13133808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 13143808843cSYunkang Tang psmouse->pktcnt - 1, 13153808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 13163808843cSYunkang Tang return PSMOUSE_BAD_DATA; 13173808843cSYunkang Tang } 13183808843cSYunkang Tang 1319b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 132024af5cb9SKevin Cernekee priv->process_packet(psmouse); 13211da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13221da177e4SLinus Torvalds } 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13251da177e4SLinus Torvalds } 13261da177e4SLinus Torvalds 132725bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 132825bded7cSSeth Forshee { 132925bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 133025bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 133125bded7cSSeth Forshee int command; 133225bded7cSSeth Forshee unsigned char *param; 133325bded7cSSeth Forshee unsigned char dummy[4]; 133425bded7cSSeth Forshee 133525bded7cSSeth Forshee BUG_ON(nibble > 0xf); 133625bded7cSSeth Forshee 133725bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 133825bded7cSSeth Forshee param = (command & 0x0f00) ? 133925bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 134025bded7cSSeth Forshee 134125bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 134225bded7cSSeth Forshee return -1; 134325bded7cSSeth Forshee 134425bded7cSSeth Forshee return 0; 134525bded7cSSeth Forshee } 134625bded7cSSeth Forshee 134725bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 134825bded7cSSeth Forshee { 134925bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 135025bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 135125bded7cSSeth Forshee int i, nibble; 135225bded7cSSeth Forshee 135325bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 135425bded7cSSeth Forshee return -1; 135525bded7cSSeth Forshee 135625bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 135725bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 135825bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 135925bded7cSSeth Forshee return -1; 136025bded7cSSeth Forshee } 136125bded7cSSeth Forshee 136225bded7cSSeth Forshee return 0; 136325bded7cSSeth Forshee } 136425bded7cSSeth Forshee 136525bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 136625bded7cSSeth Forshee { 136725bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 136825bded7cSSeth Forshee unsigned char param[4]; 136925bded7cSSeth Forshee 137025bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 137125bded7cSSeth Forshee return -1; 137225bded7cSSeth Forshee 137325bded7cSSeth Forshee /* 137425bded7cSSeth Forshee * The address being read is returned in the first two bytes 137525bded7cSSeth Forshee * of the result. Check that this address matches the expected 137625bded7cSSeth Forshee * address. 137725bded7cSSeth Forshee */ 137825bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 137925bded7cSSeth Forshee return -1; 138025bded7cSSeth Forshee 138125bded7cSSeth Forshee return param[2]; 138225bded7cSSeth Forshee } 138325bded7cSSeth Forshee 138425bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 138525bded7cSSeth Forshee { 138625bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 138725bded7cSSeth Forshee return -1; 138825bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 138925bded7cSSeth Forshee } 139025bded7cSSeth Forshee 139125bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 139225bded7cSSeth Forshee { 139325bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 139425bded7cSSeth Forshee return -1; 139525bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 139625bded7cSSeth Forshee return -1; 139725bded7cSSeth Forshee return 0; 139825bded7cSSeth Forshee } 139925bded7cSSeth Forshee 140025bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 140125bded7cSSeth Forshee u8 value) 140225bded7cSSeth Forshee { 140325bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 140425bded7cSSeth Forshee return -1; 140525bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 140625bded7cSSeth Forshee } 140725bded7cSSeth Forshee 140824ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 140924ba9707SKevin Cernekee int repeated_command, unsigned char *param) 141024ba9707SKevin Cernekee { 141124ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 141224ba9707SKevin Cernekee 141324ba9707SKevin Cernekee param[0] = 0; 141424ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 141524ba9707SKevin Cernekee return -EIO; 141624ba9707SKevin Cernekee 141724ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 141824ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 141924ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 142024ba9707SKevin Cernekee return -EIO; 142124ba9707SKevin Cernekee 142224ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 142324ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 142424ba9707SKevin Cernekee return -EIO; 142524ba9707SKevin Cernekee 142639fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 142739fbe585SDmitry Torokhov repeated_command, param); 142824ba9707SKevin Cernekee return 0; 142924ba9707SKevin Cernekee } 143024ba9707SKevin Cernekee 14313808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 14323808843cSYunkang Tang { 14333808843cSYunkang Tang if (id[0] == 0x73) 14343808843cSYunkang Tang return true; 14353808843cSYunkang Tang 14363808843cSYunkang Tang if (id[0] == 0x88 && 14373808843cSYunkang Tang (id[1] == 0x07 || 14383808843cSYunkang Tang id[1] == 0x08 || 14393808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 14403808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 14413808843cSYunkang Tang return true; 14423808843cSYunkang Tang } 14433808843cSYunkang Tang 14443808843cSYunkang Tang return false; 14453808843cSYunkang Tang } 14463808843cSYunkang Tang 1447d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 144825bded7cSSeth Forshee { 144925bded7cSSeth Forshee unsigned char param[4]; 145025bded7cSSeth Forshee 145124ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 145225bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 145325bded7cSSeth Forshee return -1; 145425bded7cSSeth Forshee } 145525bded7cSSeth Forshee 14563808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 145725bded7cSSeth Forshee psmouse_dbg(psmouse, 145824ba9707SKevin Cernekee "unknown response while entering command mode\n"); 145925bded7cSSeth Forshee return -1; 146025bded7cSSeth Forshee } 146125bded7cSSeth Forshee return 0; 146225bded7cSSeth Forshee } 146325bded7cSSeth Forshee 146425bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 146525bded7cSSeth Forshee { 146625bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 146725bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 146825bded7cSSeth Forshee return -1; 146925bded7cSSeth Forshee return 0; 147025bded7cSSeth Forshee } 147125bded7cSSeth Forshee 14721da177e4SLinus Torvalds /* 14731da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 14741da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 14751da177e4SLinus Torvalds * I'd thought it would be other way around... 14761da177e4SLinus Torvalds */ 147725bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 14781da177e4SLinus Torvalds { 14791da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 14801da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 14831da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 14841da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 14851da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 14861da177e4SLinus Torvalds return -1; 14871da177e4SLinus Torvalds 14881da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1489c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 14901da177e4SLinus Torvalds 14911da177e4SLinus Torvalds return 0; 14921da177e4SLinus Torvalds } 14931da177e4SLinus Torvalds 149425bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 14951da177e4SLinus Torvalds { 14961da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 14971da177e4SLinus Torvalds 14981da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 14991da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15001da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15011da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15021da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15031da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 15041da177e4SLinus Torvalds return -1; 15051da177e4SLinus Torvalds 15061da177e4SLinus Torvalds /* 15071da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 15081da177e4SLinus Torvalds * get in our way 15091da177e4SLinus Torvalds */ 15101da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 15111da177e4SLinus Torvalds } 15121da177e4SLinus Torvalds 151395f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 151495f75e91SYunkang Tang { 151595f75e91SYunkang Tang int i, nibble; 151695f75e91SYunkang Tang 151795f75e91SYunkang Tang /* 151895f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 151995f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 152095f75e91SYunkang Tang */ 152195f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 152295f75e91SYunkang Tang nibble = (word >> i) & 0xf; 152395f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 152495f75e91SYunkang Tang return -1; 152595f75e91SYunkang Tang } 152695f75e91SYunkang Tang 152795f75e91SYunkang Tang return 0; 152895f75e91SYunkang Tang } 152995f75e91SYunkang Tang 153095f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 153195f75e91SYunkang Tang u16 addr, u16 value) 153295f75e91SYunkang Tang { 153395f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 153495f75e91SYunkang Tang 153595f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 153695f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 153795f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 153895f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 153995f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 154095f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 154195f75e91SYunkang Tang return -1; 154295f75e91SYunkang Tang 154395f75e91SYunkang Tang return 0; 154495f75e91SYunkang Tang } 154595f75e91SYunkang Tang 154695f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 154795f75e91SYunkang Tang { 154895f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 154995f75e91SYunkang Tang 155095f75e91SYunkang Tang if (enable) { 155195f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 155295f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 155395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 155495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 155595f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 155695f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 155795f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 155895f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 155995f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 156095f75e91SYunkang Tang return -1; 156195f75e91SYunkang Tang } else { 156295f75e91SYunkang Tang /* EC to exit monitor mode */ 156395f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 156495f75e91SYunkang Tang return -1; 156595f75e91SYunkang Tang } 156695f75e91SYunkang Tang 156795f75e91SYunkang Tang return 0; 156895f75e91SYunkang Tang } 156995f75e91SYunkang Tang 157095f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 157195f75e91SYunkang Tang { 157295f75e91SYunkang Tang u16 reg_val = 0x181; 157395f75e91SYunkang Tang int ret = -1; 157495f75e91SYunkang Tang 157595f75e91SYunkang Tang /* enter monitor mode, to write the register */ 157695f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 157795f75e91SYunkang Tang return -1; 157895f75e91SYunkang Tang 157995f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 158095f75e91SYunkang Tang 158195f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 158295f75e91SYunkang Tang ret = -1; 158395f75e91SYunkang Tang 158495f75e91SYunkang Tang return ret; 158595f75e91SYunkang Tang } 158695f75e91SYunkang Tang 15871da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 15881da177e4SLinus Torvalds { 15891da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 159024ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 15911da177e4SLinus Torvalds return -1; 15921da177e4SLinus Torvalds 15931da177e4SLinus Torvalds return 0; 15941da177e4SLinus Torvalds } 15951da177e4SLinus Torvalds 15961da177e4SLinus Torvalds /* 15971da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 15981da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 15991da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 16001da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 16011da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 16021da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 16031da177e4SLinus Torvalds * we don't fiddle with it. 16041da177e4SLinus Torvalds */ 16051da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 16061da177e4SLinus Torvalds { 16071da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 16081da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 16091da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 16101da177e4SLinus Torvalds unsigned char param[4]; 16111da177e4SLinus Torvalds 16121da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 16131da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16141da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16151da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 16161da177e4SLinus Torvalds return -1; 16171da177e4SLinus Torvalds 16181da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 16191da177e4SLinus Torvalds return -1; 16201da177e4SLinus Torvalds 16211da177e4SLinus Torvalds return 0; 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 1624f0d5c6f4SDmitry Torokhov /* 1625f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1626f0d5c6f4SDmitry Torokhov * Used in resync. 1627f0d5c6f4SDmitry Torokhov */ 1628f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1629f0d5c6f4SDmitry Torokhov { 1630f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1631b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1632b7802c5cSDmitry Torokhov bool poll_failed; 1633f0d5c6f4SDmitry Torokhov 163499df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 163525bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1636f0d5c6f4SDmitry Torokhov 1637f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1638f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1639f0d5c6f4SDmitry Torokhov 164099df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 164125bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 1642f0d5c6f4SDmitry Torokhov 164399df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1644f0d5c6f4SDmitry Torokhov return -1; 1645f0d5c6f4SDmitry Torokhov 1646f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 1647f0d5c6f4SDmitry Torokhov /* 1648f0d5c6f4SDmitry Torokhov * Poll the track stick ... 1649f0d5c6f4SDmitry Torokhov */ 1650f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1651f0d5c6f4SDmitry Torokhov return -1; 1652f0d5c6f4SDmitry Torokhov } 1653f0d5c6f4SDmitry Torokhov 1654f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 1655f0d5c6f4SDmitry Torokhov return 0; 1656f0d5c6f4SDmitry Torokhov } 1657f0d5c6f4SDmitry Torokhov 165825bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 16591da177e4SLinus Torvalds { 16601da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 16611da177e4SLinus Torvalds 166299df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 166325bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 16641da177e4SLinus Torvalds return -1; 1665b7802c5cSDmitry Torokhov } 16661da177e4SLinus Torvalds 1667b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 1668b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 16691da177e4SLinus Torvalds return -1; 1670963f626dSPeter Osterlund } 16711da177e4SLinus Torvalds 167225bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 1673b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 16741da177e4SLinus Torvalds return -1; 16751da177e4SLinus Torvalds } 16761da177e4SLinus Torvalds 167799df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 167825bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 16791da177e4SLinus Torvalds return -1; 1680b7802c5cSDmitry Torokhov } 16811da177e4SLinus Torvalds 16821e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 16831e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1684b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 16851e0c5b12SDmitry Torokhov return -1; 16861e0c5b12SDmitry Torokhov } 16871e0c5b12SDmitry Torokhov 16881e0c5b12SDmitry Torokhov return 0; 16891e0c5b12SDmitry Torokhov } 16901e0c5b12SDmitry Torokhov 169195f75e91SYunkang Tang static int alps_hw_init_v6(struct psmouse *psmouse) 169295f75e91SYunkang Tang { 169395f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 169495f75e91SYunkang Tang 169595f75e91SYunkang Tang /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 169695f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, true)) 169795f75e91SYunkang Tang return -1; 169895f75e91SYunkang Tang 169995f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 170095f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 170195f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 170295f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 170395f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 170495f75e91SYunkang Tang return -1; 170595f75e91SYunkang Tang 170695f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 170795f75e91SYunkang Tang return -1; 170895f75e91SYunkang Tang 170995f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 171095f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 171195f75e91SYunkang Tang return -1; 171295f75e91SYunkang Tang } 171395f75e91SYunkang Tang 171495f75e91SYunkang Tang return 0; 171595f75e91SYunkang Tang } 171695f75e91SYunkang Tang 171725bded7cSSeth Forshee /* 1718cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 171925bded7cSSeth Forshee */ 1720cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1721cd401204SKevin Cernekee int reg_base, bool enable) 172225bded7cSSeth Forshee { 1723cd401204SKevin Cernekee int reg_val, ret = -1; 172425bded7cSSeth Forshee 1725d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 172625bded7cSSeth Forshee return -1; 172725bded7cSSeth Forshee 1728cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1729cd401204SKevin Cernekee if (reg_val == -1) 1730cd401204SKevin Cernekee goto error; 1731cd401204SKevin Cernekee 173225bded7cSSeth Forshee if (enable) 173325bded7cSSeth Forshee reg_val |= 0x01; 173425bded7cSSeth Forshee else 173525bded7cSSeth Forshee reg_val &= ~0x01; 173625bded7cSSeth Forshee 1737cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 173825bded7cSSeth Forshee 1739cd401204SKevin Cernekee error: 1740cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 1741cd401204SKevin Cernekee ret = -1; 1742cd401204SKevin Cernekee return ret; 174325bded7cSSeth Forshee } 174425bded7cSSeth Forshee 174525bded7cSSeth Forshee /* Must be in command mode when calling this function */ 174625bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 174725bded7cSSeth Forshee { 174825bded7cSSeth Forshee int reg_val; 174925bded7cSSeth Forshee 175025bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 175125bded7cSSeth Forshee if (reg_val == -1) 175225bded7cSSeth Forshee return -1; 175325bded7cSSeth Forshee 175425bded7cSSeth Forshee reg_val |= 0x06; 175525bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 175625bded7cSSeth Forshee return -1; 175725bded7cSSeth Forshee 175825bded7cSSeth Forshee return 0; 175925bded7cSSeth Forshee } 176025bded7cSSeth Forshee 1761cd401204SKevin Cernekee static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 176225bded7cSSeth Forshee { 1763cd401204SKevin Cernekee int ret = -EIO, reg_val; 176425bded7cSSeth Forshee 1765d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 176625bded7cSSeth Forshee goto error; 176725bded7cSSeth Forshee 1768cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 176925bded7cSSeth Forshee if (reg_val == -1) 177025bded7cSSeth Forshee goto error; 1771cd401204SKevin Cernekee 1772cd401204SKevin Cernekee /* bit 7: trackstick is present */ 1773cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 1774cd401204SKevin Cernekee 1775cd401204SKevin Cernekee error: 1776cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 1777cd401204SKevin Cernekee return ret; 1778cd401204SKevin Cernekee } 1779cd401204SKevin Cernekee 1780cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 1781cd401204SKevin Cernekee { 1782cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1783cd401204SKevin Cernekee int ret = 0; 1784cd401204SKevin Cernekee unsigned char param[4]; 1785cd401204SKevin Cernekee 1786cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 1787cd401204SKevin Cernekee return -EIO; 178825bded7cSSeth Forshee 178925bded7cSSeth Forshee /* 179025bded7cSSeth Forshee * E7 report for the trackstick 179125bded7cSSeth Forshee * 179225bded7cSSeth Forshee * There have been reports of failures to seem to trace back 179325bded7cSSeth Forshee * to the above trackstick check failing. When these occur 179425bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 179525bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 179625bded7cSSeth Forshee * all. 179725bded7cSSeth Forshee */ 1798cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 1799a09221e8SDmitry Torokhov psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); 1800cd401204SKevin Cernekee ret = -ENODEV; 180125bded7cSSeth Forshee } else { 180239fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 180325bded7cSSeth Forshee 180425bded7cSSeth Forshee /* 180525bded7cSSeth Forshee * Not sure what this does, but it is absolutely 180625bded7cSSeth Forshee * essential. Without it, the touchpad does not 180725bded7cSSeth Forshee * work at all and the trackstick just emits normal 180825bded7cSSeth Forshee * PS/2 packets. 180925bded7cSSeth Forshee */ 181025bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 181125bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 181225bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 181325bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x9) || 181425bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x4)) { 181525bded7cSSeth Forshee psmouse_err(psmouse, 181625bded7cSSeth Forshee "Error sending magic E6 sequence\n"); 1817cd401204SKevin Cernekee ret = -EIO; 181825bded7cSSeth Forshee goto error; 181925bded7cSSeth Forshee } 182025bded7cSSeth Forshee 1821cd401204SKevin Cernekee /* 1822cd401204SKevin Cernekee * This ensures the trackstick packets are in the format 1823cd401204SKevin Cernekee * supported by this driver. If bit 1 isn't set the packet 1824cd401204SKevin Cernekee * format is different. 1825cd401204SKevin Cernekee */ 1826d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1827cd401204SKevin Cernekee alps_command_mode_write_reg(psmouse, 1828cd401204SKevin Cernekee reg_base + 0x08, 0x82) || 1829cd401204SKevin Cernekee alps_exit_command_mode(psmouse)) 1830cd401204SKevin Cernekee ret = -EIO; 1831cd401204SKevin Cernekee } 1832cd401204SKevin Cernekee 1833cd401204SKevin Cernekee error: 1834cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 1835cd401204SKevin Cernekee ret = -EIO; 1836cd401204SKevin Cernekee 1837cd401204SKevin Cernekee return ret; 1838cd401204SKevin Cernekee } 1839cd401204SKevin Cernekee 1840cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 1841cd401204SKevin Cernekee { 1842cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1843cd401204SKevin Cernekee int reg_val; 1844cd401204SKevin Cernekee unsigned char param[4]; 1845cd401204SKevin Cernekee 1846cd401204SKevin Cernekee reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 1847cd401204SKevin Cernekee if (reg_val == -EIO) 1848cd401204SKevin Cernekee goto error; 184939fbe585SDmitry Torokhov 1850cd401204SKevin Cernekee if (reg_val == 0 && 1851cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 1852cd401204SKevin Cernekee goto error; 1853cd401204SKevin Cernekee 1854d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1855cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 185625bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 185725bded7cSSeth Forshee goto error; 185825bded7cSSeth Forshee } 185925bded7cSSeth Forshee 186025bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 186125bded7cSSeth Forshee if (reg_val == -1) 186225bded7cSSeth Forshee goto error; 186325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 186425bded7cSSeth Forshee goto error; 186525bded7cSSeth Forshee 186625bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 186725bded7cSSeth Forshee if (reg_val == -1) 186825bded7cSSeth Forshee goto error; 186925bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 187025bded7cSSeth Forshee goto error; 187125bded7cSSeth Forshee 187225bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 187325bded7cSSeth Forshee goto error; 187425bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 187525bded7cSSeth Forshee goto error; 187625bded7cSSeth Forshee 187725bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 187825bded7cSSeth Forshee goto error; 187925bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 188025bded7cSSeth Forshee goto error; 188125bded7cSSeth Forshee 188225bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 188325bded7cSSeth Forshee goto error; 188425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 188525bded7cSSeth Forshee goto error; 188625bded7cSSeth Forshee 188725bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 188825bded7cSSeth Forshee goto error; 188925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 189025bded7cSSeth Forshee goto error; 189125bded7cSSeth Forshee 189225bded7cSSeth Forshee alps_exit_command_mode(psmouse); 189325bded7cSSeth Forshee 189425bded7cSSeth Forshee /* Set rate and enable data reporting */ 189525bded7cSSeth Forshee param[0] = 0x64; 189625bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 189725bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 189825bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 189925bded7cSSeth Forshee return -1; 190025bded7cSSeth Forshee } 190125bded7cSSeth Forshee 190225bded7cSSeth Forshee return 0; 190325bded7cSSeth Forshee 190425bded7cSSeth Forshee error: 190525bded7cSSeth Forshee /* 190625bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 190725bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 190825bded7cSSeth Forshee * to be safe 190925bded7cSSeth Forshee */ 191025bded7cSSeth Forshee alps_exit_command_mode(psmouse); 191125bded7cSSeth Forshee return -1; 191225bded7cSSeth Forshee } 191325bded7cSSeth Forshee 1914f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 1915f3f33c67SHans de Goede { 1916f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 1917f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 1918f3f33c67SHans de Goede 1919f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 1920f3f33c67SHans de Goede if (reg < 0) 1921f3f33c67SHans de Goede return reg; 1922f3f33c67SHans de Goede 1923f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1924f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 1925f3f33c67SHans de Goede 1926f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 1927f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 1928f3f33c67SHans de Goede 1929f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 1930f3f33c67SHans de Goede if (reg < 0) 1931f3f33c67SHans de Goede return reg; 1932f3f33c67SHans de Goede 1933f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1934f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 1935f3f33c67SHans de Goede 1936f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 1937f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 1938f3f33c67SHans de Goede 1939f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 1940f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 1941f3f33c67SHans de Goede 1942f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 1943f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 1944f3f33c67SHans de Goede 1945f3f33c67SHans de Goede psmouse_dbg(psmouse, 1946f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 1947f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 1948f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 1949f3f33c67SHans de Goede 1950f3f33c67SHans de Goede return 0; 1951f3f33c67SHans de Goede } 1952f3f33c67SHans de Goede 19531302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 19541302bac3SKevin Cernekee { 1955cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 19561302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 19571302bac3SKevin Cernekee int reg_val, ret = -1; 19581302bac3SKevin Cernekee 1959cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 1960cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 1961cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 1962cd401204SKevin Cernekee if (reg_val == -EIO) 1963cd401204SKevin Cernekee goto error; 1964cd401204SKevin Cernekee } 1965cd401204SKevin Cernekee 1966d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 19671302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 19681302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 19691302bac3SKevin Cernekee goto error; 19701302bac3SKevin Cernekee 1971f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 1972f3f33c67SHans de Goede goto error; 1973f3f33c67SHans de Goede 19741302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 19751302bac3SKevin Cernekee if (reg_val == -1) 19761302bac3SKevin Cernekee goto error; 19771302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 19781302bac3SKevin Cernekee goto error; 19791302bac3SKevin Cernekee 19801302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 19811302bac3SKevin Cernekee goto error; 19821302bac3SKevin Cernekee 19831302bac3SKevin Cernekee /* enter absolute mode */ 19841302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 19851302bac3SKevin Cernekee if (reg_val == -1) 19861302bac3SKevin Cernekee goto error; 19871302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 19881302bac3SKevin Cernekee goto error; 19891302bac3SKevin Cernekee 19901302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 19911302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 19921302bac3SKevin Cernekee 19931302bac3SKevin Cernekee error: 19941302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 19951302bac3SKevin Cernekee return ret; 19961302bac3SKevin Cernekee } 19971302bac3SKevin Cernekee 199825bded7cSSeth Forshee /* Must be in command mode when calling this function */ 199925bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 200025bded7cSSeth Forshee { 200125bded7cSSeth Forshee int reg_val; 200225bded7cSSeth Forshee 200325bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 200425bded7cSSeth Forshee if (reg_val == -1) 200525bded7cSSeth Forshee return -1; 200625bded7cSSeth Forshee 200725bded7cSSeth Forshee reg_val |= 0x02; 200825bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 200925bded7cSSeth Forshee return -1; 201025bded7cSSeth Forshee 201125bded7cSSeth Forshee return 0; 201225bded7cSSeth Forshee } 201325bded7cSSeth Forshee 201425bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 201525bded7cSSeth Forshee { 201625bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 201725bded7cSSeth Forshee unsigned char param[4]; 201825bded7cSSeth Forshee 2019d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 202025bded7cSSeth Forshee goto error; 202125bded7cSSeth Forshee 202225bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 202325bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 202425bded7cSSeth Forshee goto error; 202525bded7cSSeth Forshee } 202625bded7cSSeth Forshee 202725bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 202825bded7cSSeth Forshee goto error; 202925bded7cSSeth Forshee 203025bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 203125bded7cSSeth Forshee goto error; 203225bded7cSSeth Forshee 203325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 203425bded7cSSeth Forshee goto error; 203525bded7cSSeth Forshee 203625bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 203725bded7cSSeth Forshee goto error; 203825bded7cSSeth Forshee 203925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 204025bded7cSSeth Forshee goto error; 204125bded7cSSeth Forshee 204225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 204325bded7cSSeth Forshee goto error; 204425bded7cSSeth Forshee 204525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 204625bded7cSSeth Forshee goto error; 204725bded7cSSeth Forshee 204825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 204925bded7cSSeth Forshee goto error; 205025bded7cSSeth Forshee 205125bded7cSSeth Forshee alps_exit_command_mode(psmouse); 205225bded7cSSeth Forshee 205325bded7cSSeth Forshee /* 205425bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 205525bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 205625bded7cSSeth Forshee * just in a more compact format. 205725bded7cSSeth Forshee */ 205825bded7cSSeth Forshee param[0] = 0xc8; 205925bded7cSSeth Forshee param[1] = 0x64; 206025bded7cSSeth Forshee param[2] = 0x50; 206125bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 206225bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 206325bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 206425bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 206525bded7cSSeth Forshee return -1; 206625bded7cSSeth Forshee 206725bded7cSSeth Forshee /* Set rate and enable data reporting */ 206825bded7cSSeth Forshee param[0] = 0x64; 206925bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 207025bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 207125bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 207225bded7cSSeth Forshee return -1; 207325bded7cSSeth Forshee } 207425bded7cSSeth Forshee 207525bded7cSSeth Forshee return 0; 207625bded7cSSeth Forshee 207725bded7cSSeth Forshee error: 207825bded7cSSeth Forshee /* 207925bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 208025bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 208125bded7cSSeth Forshee * to be safe 208225bded7cSSeth Forshee */ 208325bded7cSSeth Forshee alps_exit_command_mode(psmouse); 208425bded7cSSeth Forshee return -1; 208525bded7cSSeth Forshee } 208625bded7cSSeth Forshee 2087ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2088ee65d4b3SYunkang Tang struct alps_data *priv) 2089ee65d4b3SYunkang Tang { 2090ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2091ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2092ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2093ee65d4b3SYunkang Tang 2094ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2095ee65d4b3SYunkang Tang return -1; 2096ee65d4b3SYunkang Tang 2097ee65d4b3SYunkang Tang param[0] = 0x0a; 2098ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2099ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2100ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2101ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2102ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2103ee65d4b3SYunkang Tang return -1; 2104ee65d4b3SYunkang Tang 2105ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2106ee65d4b3SYunkang Tang return -1; 2107ee65d4b3SYunkang Tang 2108ee65d4b3SYunkang Tang /* 2109ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2110ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2111ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2112ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2113ee65d4b3SYunkang Tang * 2114ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2115ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2116ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2117ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2118ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2119ee65d4b3SYunkang Tang */ 2120ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2121ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2122ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2123ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2124ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2125ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2126ee65d4b3SYunkang Tang 2127ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2128ee65d4b3SYunkang Tang return -1; 2129ee65d4b3SYunkang Tang 2130ee65d4b3SYunkang Tang return 0; 2131ee65d4b3SYunkang Tang } 2132ee65d4b3SYunkang Tang 213375af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 213475af9e56SDave Turvene { 213575af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 213675af9e56SDave Turvene unsigned char param[2]; 213775af9e56SDave Turvene 213875af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 213975af9e56SDave Turvene param[0] = 0x64; 214075af9e56SDave Turvene param[1] = 0x28; 214175af9e56SDave Turvene 214275af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 214375af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 214475af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 214575af9e56SDave Turvene return -1; 214675af9e56SDave Turvene 214775af9e56SDave Turvene return 0; 214875af9e56SDave Turvene } 214975af9e56SDave Turvene 21503808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 21513808843cSYunkang Tang { 21523808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 21533808843cSYunkang Tang int reg_val, ret = -1; 21543808843cSYunkang Tang 21553808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 21563808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 21573808843cSYunkang Tang goto error; 21583808843cSYunkang Tang 2159f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2160f3f33c67SHans de Goede goto error; 2161f3f33c67SHans de Goede 21623808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 21633808843cSYunkang Tang goto error; 21643808843cSYunkang Tang 21653808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 21663808843cSYunkang Tang if (reg_val == -1) 21673808843cSYunkang Tang goto error; 21683808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 21693808843cSYunkang Tang goto error; 21703808843cSYunkang Tang 21713808843cSYunkang Tang alps_exit_command_mode(psmouse); 21723808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 21733808843cSYunkang Tang 21743808843cSYunkang Tang error: 21753808843cSYunkang Tang alps_exit_command_mode(psmouse); 21763808843cSYunkang Tang return ret; 21773808843cSYunkang Tang } 21783808843cSYunkang Tang 21793296f71cSDmitry Torokhov static int alps_set_protocol(struct psmouse *psmouse, 21803296f71cSDmitry Torokhov struct alps_data *priv, 21813296f71cSDmitry Torokhov const struct alps_protocol_info *protocol) 218225bded7cSSeth Forshee { 21833296f71cSDmitry Torokhov psmouse->private = priv; 21843296f71cSDmitry Torokhov 21853296f71cSDmitry Torokhov setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 21863296f71cSDmitry Torokhov 21873296f71cSDmitry Torokhov priv->proto_version = protocol->version; 21883296f71cSDmitry Torokhov priv->byte0 = protocol->byte0; 21893296f71cSDmitry Torokhov priv->mask0 = protocol->mask0; 21903296f71cSDmitry Torokhov priv->flags = protocol->flags; 2191f673ceb1SKevin Cernekee 21927a9f73e7SKevin Cernekee priv->x_max = 2000; 21937a9f73e7SKevin Cernekee priv->y_max = 1400; 21947a9f73e7SKevin Cernekee priv->x_bits = 15; 21957a9f73e7SKevin Cernekee priv->y_bits = 11; 21967a9f73e7SKevin Cernekee 219799df65e7SKevin Cernekee switch (priv->proto_version) { 219825bded7cSSeth Forshee case ALPS_PROTO_V1: 219925bded7cSSeth Forshee case ALPS_PROTO_V2: 220024af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 220124af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 220224af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 220395f75e91SYunkang Tang priv->x_max = 1023; 220495f75e91SYunkang Tang priv->y_max = 767; 220525bded7cSSeth Forshee break; 2206fb2dd7a6SDmitry Torokhov 220725bded7cSSeth Forshee case ALPS_PROTO_V3: 220824af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 220924af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 221024af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 2211f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 221250e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 221350e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 221425bded7cSSeth Forshee break; 2215fb2dd7a6SDmitry Torokhov 2216fb2dd7a6SDmitry Torokhov case ALPS_PROTO_V3_RUSHMORE: 2217fb2dd7a6SDmitry Torokhov priv->hw_init = alps_hw_init_rushmore_v3; 2218fb2dd7a6SDmitry Torokhov priv->process_packet = alps_process_packet_v3; 2219fb2dd7a6SDmitry Torokhov priv->set_abs_params = alps_set_abs_params_mt; 2220fb2dd7a6SDmitry Torokhov priv->decode_fields = alps_decode_rushmore; 2221fb2dd7a6SDmitry Torokhov priv->nibble_commands = alps_v3_nibble_commands; 2222fb2dd7a6SDmitry Torokhov priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2223fb2dd7a6SDmitry Torokhov priv->x_bits = 16; 2224fb2dd7a6SDmitry Torokhov priv->y_bits = 12; 22253296f71cSDmitry Torokhov 22263296f71cSDmitry Torokhov if (alps_probe_trackstick_v3(psmouse, 22273296f71cSDmitry Torokhov ALPS_REG_BASE_RUSHMORE) < 0) 22283296f71cSDmitry Torokhov priv->flags &= ~ALPS_DUALPOINT; 22293296f71cSDmitry Torokhov 2230fb2dd7a6SDmitry Torokhov break; 2231fb2dd7a6SDmitry Torokhov 223225bded7cSSeth Forshee case ALPS_PROTO_V4: 223324af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 223424af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 223524af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 223650e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 223750e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 223825bded7cSSeth Forshee break; 22393296f71cSDmitry Torokhov 224075af9e56SDave Turvene case ALPS_PROTO_V5: 224175af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2242ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 224375af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 224475af9e56SDave Turvene priv->set_abs_params = alps_set_abs_params_mt; 224575af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 224675af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 224775af9e56SDave Turvene priv->x_max = 1360; 224875af9e56SDave Turvene priv->y_max = 660; 224975af9e56SDave Turvene priv->x_bits = 23; 225075af9e56SDave Turvene priv->y_bits = 12; 225175af9e56SDave Turvene break; 22523296f71cSDmitry Torokhov 225395f75e91SYunkang Tang case ALPS_PROTO_V6: 225495f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 225595f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 225695f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 225795f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 225895f75e91SYunkang Tang priv->x_max = 2047; 225995f75e91SYunkang Tang priv->y_max = 1535; 226095f75e91SYunkang Tang break; 22613296f71cSDmitry Torokhov 22623808843cSYunkang Tang case ALPS_PROTO_V7: 22633808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 22643808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 22653808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 22663808843cSYunkang Tang priv->set_abs_params = alps_set_abs_params_mt; 22673808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 22683808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 22693296f71cSDmitry Torokhov 22703296f71cSDmitry Torokhov if (alps_dolphin_get_device_area(psmouse, priv)) 22713296f71cSDmitry Torokhov return -EIO; 22723808843cSYunkang Tang 22733808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 22743808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 22753296f71cSDmitry Torokhov 22763808843cSYunkang Tang break; 227725bded7cSSeth Forshee } 22783296f71cSDmitry Torokhov 22793296f71cSDmitry Torokhov return 0; 228025bded7cSSeth Forshee } 228125bded7cSSeth Forshee 22823296f71cSDmitry Torokhov static const struct alps_protocol_info *alps_match_table(unsigned char *e7, 22833296f71cSDmitry Torokhov unsigned char *ec) 22842e992cc0SKevin Cernekee { 2285b5d6b851SKevin Cernekee const struct alps_model_info *model; 22862e992cc0SKevin Cernekee int i; 22872e992cc0SKevin Cernekee 2288b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2289b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2290b5d6b851SKevin Cernekee 2291b5d6b851SKevin Cernekee if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2292b5d6b851SKevin Cernekee (!model->command_mode_resp || 2293b5d6b851SKevin Cernekee model->command_mode_resp == ec[2])) { 2294b5d6b851SKevin Cernekee 22953296f71cSDmitry Torokhov return &model->protocol_info; 2296b5d6b851SKevin Cernekee } 2297b5d6b851SKevin Cernekee } 2298b5d6b851SKevin Cernekee 22993296f71cSDmitry Torokhov return NULL; 2300b5d6b851SKevin Cernekee } 2301b5d6b851SKevin Cernekee 2302b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2303b5d6b851SKevin Cernekee { 23043296f71cSDmitry Torokhov const struct alps_protocol_info *protocol; 2305b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2306a09221e8SDmitry Torokhov int error; 2307b5d6b851SKevin Cernekee 23082e992cc0SKevin Cernekee /* 23092e992cc0SKevin Cernekee * First try "E6 report". 23102e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 23112e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 23122e992cc0SKevin Cernekee * pressed. 23132e992cc0SKevin Cernekee */ 2314b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2315b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2316b5d6b851SKevin Cernekee return -EIO; 23172e992cc0SKevin Cernekee 2318b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2319b5d6b851SKevin Cernekee return -EINVAL; 23202e992cc0SKevin Cernekee 23212e992cc0SKevin Cernekee /* 2322b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2323b5d6b851SKevin Cernekee * most ALPS touchpads. 23242e992cc0SKevin Cernekee */ 2325b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2326b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2327b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2328b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2329b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2330b5d6b851SKevin Cernekee return -EIO; 23312e992cc0SKevin Cernekee 23323296f71cSDmitry Torokhov protocol = alps_match_table(e7, ec); 23333296f71cSDmitry Torokhov if (!protocol) { 23343296f71cSDmitry Torokhov if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 23353296f71cSDmitry Torokhov ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 23363296f71cSDmitry Torokhov protocol = &alps_v5_protocol_data; 23373296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && 23383296f71cSDmitry Torokhov ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 23393296f71cSDmitry Torokhov protocol = &alps_v7_protocol_data; 23403296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x08) { 23413296f71cSDmitry Torokhov protocol = &alps_v3_rushmore_data; 23423296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x07 && 23433296f71cSDmitry Torokhov ec[2] >= 0x90 && ec[2] <= 0x9d) { 23443296f71cSDmitry Torokhov protocol = &alps_v3_protocol_data; 23453296f71cSDmitry Torokhov } else { 23463296f71cSDmitry Torokhov psmouse_dbg(psmouse, 23473296f71cSDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 23483296f71cSDmitry Torokhov return -EINVAL; 23493296f71cSDmitry Torokhov } 23503296f71cSDmitry Torokhov } 23513296f71cSDmitry Torokhov 2352a09221e8SDmitry Torokhov if (priv) { 2353c0cd17f6SHans de Goede /* Save the Firmware version */ 2354c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2355a09221e8SDmitry Torokhov error = alps_set_protocol(psmouse, priv, protocol); 2356a09221e8SDmitry Torokhov if (error) 2357a09221e8SDmitry Torokhov return error; 2358a09221e8SDmitry Torokhov } 2359c0cd17f6SHans de Goede 2360a09221e8SDmitry Torokhov return 0; 23612e992cc0SKevin Cernekee } 23622e992cc0SKevin Cernekee 23631e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 23641e0c5b12SDmitry Torokhov { 2365b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 236671bb21b6SMaxim Levitsky 23671e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 23681e0c5b12SDmitry Torokhov 2369b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 23701e0c5b12SDmitry Torokhov return -1; 23711e0c5b12SDmitry Torokhov 237224af5cb9SKevin Cernekee return priv->hw_init(psmouse); 23731da177e4SLinus Torvalds } 23741da177e4SLinus Torvalds 23751da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 23761da177e4SLinus Torvalds { 23771da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 23782e5b636bSDmitry Torokhov 23791da177e4SLinus Torvalds psmouse_reset(psmouse); 23801d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 23812e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 23821da177e4SLinus Torvalds kfree(priv); 23831da177e4SLinus Torvalds } 23841da177e4SLinus Torvalds 238524af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 238624af5cb9SKevin Cernekee struct input_dev *dev1) 238724af5cb9SKevin Cernekee { 238895f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 238995f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 239024af5cb9SKevin Cernekee } 239124af5cb9SKevin Cernekee 239224af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 239324af5cb9SKevin Cernekee struct input_dev *dev1) 239424af5cb9SKevin Cernekee { 23957a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 23967a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 239724af5cb9SKevin Cernekee 2398f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2399f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2400f3f33c67SHans de Goede 2401cdf333efSHans de Goede input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER | 2402cdf333efSHans de Goede INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT); 2403cdf333efSHans de Goede 240424af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 240524af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 24063808843cSYunkang Tang 24073808843cSYunkang Tang /* V7 is real multi-touch */ 24083808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7) 24093808843cSYunkang Tang clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit); 241024af5cb9SKevin Cernekee } 241124af5cb9SKevin Cernekee 24121da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 24131da177e4SLinus Torvalds { 2414a09221e8SDmitry Torokhov struct alps_data *priv = psmouse->private; 24152e5b636bSDmitry Torokhov struct input_dev *dev1 = psmouse->dev, *dev2; 2416a09221e8SDmitry Torokhov int error; 24171da177e4SLinus Torvalds 24182e5b636bSDmitry Torokhov dev2 = input_allocate_device(); 2419a09221e8SDmitry Torokhov if (!dev2) { 2420a09221e8SDmitry Torokhov error = -ENOMEM; 24211da177e4SLinus Torvalds goto init_fail; 2422a09221e8SDmitry Torokhov } 24232e5b636bSDmitry Torokhov 24242e5b636bSDmitry Torokhov priv->dev2 = dev2; 24251da177e4SLinus Torvalds 2426a09221e8SDmitry Torokhov error = priv->hw_init(psmouse); 2427a09221e8SDmitry Torokhov if (error) 24281da177e4SLinus Torvalds goto init_fail; 24291da177e4SLinus Torvalds 24307105d2eaSDmitry Torokhov /* 24317105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 24327105d2eaSDmitry Torokhov * is not a relative device. 24337105d2eaSDmitry Torokhov */ 24347105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 24357105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 24367105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 24377105d2eaSDmitry Torokhov 24387105d2eaSDmitry Torokhov /* 24397105d2eaSDmitry Torokhov * Now set up our capabilities. 24407105d2eaSDmitry Torokhov */ 24417b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 24427b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 24437b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 244471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 244571bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 24461da177e4SLinus Torvalds 24477b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 244825bded7cSSeth Forshee 244924af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 24503808843cSYunkang Tang /* No pressure on V7 */ 24513808843cSYunkang Tang if (priv->proto_version != ALPS_PROTO_V7) 24522e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 24531da177e4SLinus Torvalds 245499df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 24557b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 24567b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 24571da177e4SLinus Torvalds } 24581da177e4SLinus Torvalds 245999df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 24607b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 24617b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 24621da177e4SLinus Torvalds } 24631da177e4SLinus Torvalds 246499df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 246571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 246671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 246771bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 246871bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 24693808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 24703808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 24713808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 247271bb21b6SMaxim Levitsky } else { 247371bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 247471bb21b6SMaxim Levitsky } 247571bb21b6SMaxim Levitsky 2476dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 2477dfba8600SPali Rohár /* 2478dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 2479dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 2480dfba8600SPali Rohár */ 2481dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 2482dfba8600SPali Rohár dev2->id.product = PSMOUSE_ALPS; 2483dfba8600SPali Rohár dev2->id.version = priv->proto_version; 2484dfba8600SPali Rohár } else { 2485dfba8600SPali Rohár dev2->name = "PS/2 ALPS Mouse"; 2486dfba8600SPali Rohár dev2->id.product = PSMOUSE_PS2; 2487dfba8600SPali Rohár dev2->id.version = 0x0000; 2488dfba8600SPali Rohár } 2489dfba8600SPali Rohár 249008ffce45SDmitry Torokhov snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 24912e5b636bSDmitry Torokhov dev2->phys = priv->phys; 24922e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 24932e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 24941db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 24951da177e4SLinus Torvalds 24967b19ada2SJiri Slaby dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 249771bb21b6SMaxim Levitsky dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 249871bb21b6SMaxim Levitsky dev2->keybit[BIT_WORD(BTN_LEFT)] = 249971bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 25001da177e4SLinus Torvalds 250101d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 25027611392fSHans de Goede if (priv->flags & ALPS_DUALPOINT) 25037611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 25047611392fSHans de Goede 2505f42649e8SDmitry Torokhov if (input_register_device(priv->dev2)) 2506f42649e8SDmitry Torokhov goto init_fail; 25071da177e4SLinus Torvalds 25081da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 2509f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 25101da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 25111da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 251299df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 25131da177e4SLinus Torvalds 2514f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2515f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 2516f0d5c6f4SDmitry Torokhov 25179d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 25189d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 25199d720b34SPali Rohár 25201da177e4SLinus Torvalds return 0; 25211da177e4SLinus Torvalds 25221da177e4SLinus Torvalds init_fail: 2523f42649e8SDmitry Torokhov psmouse_reset(psmouse); 25242e5b636bSDmitry Torokhov input_free_device(dev2); 2525a09221e8SDmitry Torokhov /* 2526a09221e8SDmitry Torokhov * Even though we did not allocate psmouse->private we do free 2527a09221e8SDmitry Torokhov * it here. 2528a09221e8SDmitry Torokhov */ 2529a09221e8SDmitry Torokhov kfree(psmouse->private); 25301e0c5b12SDmitry Torokhov psmouse->private = NULL; 2531a09221e8SDmitry Torokhov return error; 25321da177e4SLinus Torvalds } 25331da177e4SLinus Torvalds 2534b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 25351da177e4SLinus Torvalds { 2536a09221e8SDmitry Torokhov struct alps_data *priv; 2537a09221e8SDmitry Torokhov int error; 25381da177e4SLinus Torvalds 2539a09221e8SDmitry Torokhov error = alps_identify(psmouse, NULL); 2540a09221e8SDmitry Torokhov if (error) 2541a09221e8SDmitry Torokhov return error; 2542a09221e8SDmitry Torokhov 2543a09221e8SDmitry Torokhov /* 2544a09221e8SDmitry Torokhov * Reset the device to make sure it is fully operational: 2545a09221e8SDmitry Torokhov * on some laptops, like certain Dell Latitudes, we may 2546a09221e8SDmitry Torokhov * fail to properly detect presence of trackstick if device 2547a09221e8SDmitry Torokhov * has not been reset. 2548a09221e8SDmitry Torokhov */ 2549a09221e8SDmitry Torokhov psmouse_reset(psmouse); 2550a09221e8SDmitry Torokhov 2551a09221e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 2552a09221e8SDmitry Torokhov if (!priv) 2553a09221e8SDmitry Torokhov return -ENOMEM; 2554a09221e8SDmitry Torokhov 2555a09221e8SDmitry Torokhov error = alps_identify(psmouse, priv); 2556a09221e8SDmitry Torokhov if (error) 2557a09221e8SDmitry Torokhov return error; 25581da177e4SLinus Torvalds 25591da177e4SLinus Torvalds if (set_properties) { 25601da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 2561a09221e8SDmitry Torokhov psmouse->name = priv->flags & ALPS_DUALPOINT ? 2562968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 2563a09221e8SDmitry Torokhov psmouse->model = priv->proto_version; 2564a09221e8SDmitry Torokhov } else { 2565a09221e8SDmitry Torokhov /* 2566a09221e8SDmitry Torokhov * Destroy alps_data structure we allocated earlier since 2567a09221e8SDmitry Torokhov * this was just a "trial run". Otherwise we'll keep it 2568a09221e8SDmitry Torokhov * to be used by alps_init() which has to be called if 2569a09221e8SDmitry Torokhov * we succeed and set_properties is true. 2570a09221e8SDmitry Torokhov */ 2571a09221e8SDmitry Torokhov kfree(priv); 2572a09221e8SDmitry Torokhov psmouse->private = NULL; 25731da177e4SLinus Torvalds } 2574a09221e8SDmitry Torokhov 25751da177e4SLinus Torvalds return 0; 25761da177e4SLinus Torvalds } 25771da177e4SLinus Torvalds 2578