11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ALPS touchpad PS/2 mouse driver 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 5963f626dSPeter Osterlund * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> 61da177e4SLinus Torvalds * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> 71da177e4SLinus Torvalds * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> 81d9f2626SSebastian Kapfer * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * ALPS detection, tap switching and status querying info is taken from 111da177e4SLinus Torvalds * tpconfig utility (by C. Scott Ananian and Bruce Kall). 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify it 141da177e4SLinus Torvalds * under the terms of the GNU General Public License version 2 as published by 151da177e4SLinus Torvalds * the Free Software Foundation. 161da177e4SLinus Torvalds */ 171da177e4SLinus Torvalds 185a0e3ad6STejun Heo #include <linux/slab.h> 191da177e4SLinus Torvalds #include <linux/input.h> 2001ce661fSSeth Forshee #include <linux/input/mt.h> 211da177e4SLinus Torvalds #include <linux/serio.h> 221da177e4SLinus Torvalds #include <linux/libps2.h> 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #include "psmouse.h" 251da177e4SLinus Torvalds #include "alps.h" 261da177e4SLinus Torvalds 2725bded7cSSeth Forshee /* 2825bded7cSSeth Forshee * Definitions for ALPS version 3 and 4 command mode protocol 2925bded7cSSeth Forshee */ 3025bded7cSSeth Forshee #define ALPS_CMD_NIBBLE_10 0x01f2 3125bded7cSSeth Forshee 32cd401204SKevin Cernekee #define ALPS_REG_BASE_RUSHMORE 0xc2c0 33cd401204SKevin Cernekee #define ALPS_REG_BASE_PINNACLE 0x0000 34cd401204SKevin Cernekee 3525bded7cSSeth Forshee static const struct alps_nibble_commands alps_v3_nibble_commands[] = { 3625bded7cSSeth Forshee { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ 3725bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 3825bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 3925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 4025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 4125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 4225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 4325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 4425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 4525bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 4625bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 4725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 4825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 4925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 5025bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 5125bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 5225bded7cSSeth Forshee }; 5325bded7cSSeth Forshee 5425bded7cSSeth Forshee static const struct alps_nibble_commands alps_v4_nibble_commands[] = { 5525bded7cSSeth Forshee { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 5625bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 5725bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 5825bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 5925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 6025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 6125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 6225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 6325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 6425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 6525bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 6625bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 6725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 6825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 6925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 7025bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 7125bded7cSSeth Forshee }; 7225bded7cSSeth Forshee 7395f75e91SYunkang Tang static const struct alps_nibble_commands alps_v6_nibble_commands[] = { 7495f75e91SYunkang Tang { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 7595f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ 7695f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ 7795f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ 7895f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ 7995f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ 8095f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ 8195f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ 8295f75e91SYunkang Tang { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ 8395f75e91SYunkang Tang { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ 8495f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ 8595f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ 8695f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ 8795f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ 8895f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ 8995f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 9095f75e91SYunkang Tang }; 9195f75e91SYunkang Tang 9225bded7cSSeth Forshee 9371bb21b6SMaxim Levitsky #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ 9471bb21b6SMaxim Levitsky #define ALPS_PASS 0x04 /* device has a pass-through port */ 9571bb21b6SMaxim Levitsky 9671bb21b6SMaxim Levitsky #define ALPS_WHEEL 0x08 /* hardware wheel present */ 9771bb21b6SMaxim Levitsky #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ 9871bb21b6SMaxim Levitsky #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ 9971bb21b6SMaxim Levitsky #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ 1001d9f2626SSebastian Kapfer #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 1011d9f2626SSebastian Kapfer 6-byte ALPS packet */ 1023808843cSYunkang Tang #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ 1031da177e4SLinus Torvalds 104e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 1058326bb57SDmitry Torokhov { { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */ 1068326bb57SDmitry Torokhov { { 0x33, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */ 1078326bb57SDmitry Torokhov { { 0x53, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1088326bb57SDmitry Torokhov { { 0x53, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1098326bb57SDmitry Torokhov { { 0x60, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, /* HP ze1115 */ 1108326bb57SDmitry Torokhov { { 0x63, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1118326bb57SDmitry Torokhov { { 0x63, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1128326bb57SDmitry Torokhov { { 0x63, 0x02, 0x28 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Fujitsu Siemens S6010 */ 1138326bb57SDmitry Torokhov { { 0x63, 0x02, 0x3c }, 0x00, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-103 */ 1148326bb57SDmitry Torokhov { { 0x63, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 } }, /* NEC Versa L320 */ 1158326bb57SDmitry Torokhov { { 0x63, 0x02, 0x64 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1168326bb57SDmitry Torokhov { { 0x63, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D800 */ 1178326bb57SDmitry Torokhov { { 0x73, 0x00, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG */ 1188326bb57SDmitry Torokhov { { 0x73, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 1198326bb57SDmitry Torokhov { { 0x73, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Ahtec Laptop */ 120626b9da0SDmitry Torokhov 121626b9da0SDmitry Torokhov /* 122626b9da0SDmitry Torokhov * XXX This entry is suspicious. First byte has zero lower nibble, 123626b9da0SDmitry Torokhov * which is what a normal mouse would report. Also, the value 0x0e 124626b9da0SDmitry Torokhov * isn't valid per PS/2 spec. 125626b9da0SDmitry Torokhov */ 126626b9da0SDmitry Torokhov { { 0x20, 0x02, 0x0e }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 127626b9da0SDmitry Torokhov 1288326bb57SDmitry Torokhov { { 0x22, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 1298326bb57SDmitry Torokhov { { 0x22, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */ 1301d9f2626SSebastian Kapfer /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 1318326bb57SDmitry Torokhov { { 0x62, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, 1328326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, 1338326bb57SDmitry Torokhov { { 0x73, 0x00, 0x14 }, 0x00, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */ 1348326bb57SDmitry Torokhov { { 0x73, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */ 1358326bb57SDmitry Torokhov { { 0x52, 0x01, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, 1368326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */ 1378326bb57SDmitry Torokhov { { 0x73, 0x02, 0x64 }, 0x8a, { ALPS_PROTO_V4, 0x8f, 0x8f, 0 } }, 1381da177e4SLinus Torvalds }; 1391da177e4SLinus Torvalds 1403296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_protocol_data = { 1413296f71cSDmitry Torokhov ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT 1423296f71cSDmitry Torokhov }; 1433296f71cSDmitry Torokhov 1443296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_rushmore_data = { 1453296f71cSDmitry Torokhov ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT 1463296f71cSDmitry Torokhov }; 1473296f71cSDmitry Torokhov 1483296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v5_protocol_data = { 1493296f71cSDmitry Torokhov ALPS_PROTO_V5, 0xc8, 0xd8, 0 1503296f71cSDmitry Torokhov }; 1513296f71cSDmitry Torokhov 1523296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v7_protocol_data = { 1533296f71cSDmitry Torokhov ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT 1543296f71cSDmitry Torokhov }; 1553296f71cSDmitry Torokhov 15624af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 15724af5cb9SKevin Cernekee struct input_dev *dev1); 15824af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 15924af5cb9SKevin Cernekee struct input_dev *dev1); 16024af5cb9SKevin Cernekee 161d4b347b2SSeth Forshee /* Packet formats are described in Documentation/input/alps.txt */ 1621da177e4SLinus Torvalds 16399df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 1641d9f2626SSebastian Kapfer unsigned char data) 1651d9f2626SSebastian Kapfer { 16699df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 1671d9f2626SSebastian Kapfer } 1681d9f2626SSebastian Kapfer 16904aae283SPali Rohár static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, 1701d9f2626SSebastian Kapfer int left, int right, int middle) 1711d9f2626SSebastian Kapfer { 1721d9f2626SSebastian Kapfer struct input_dev *dev; 1731d9f2626SSebastian Kapfer 1741d9f2626SSebastian Kapfer /* 1751d9f2626SSebastian Kapfer * If shared button has already been reported on the 1761d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 1771d9f2626SSebastian Kapfer * sent through that device. 1781d9f2626SSebastian Kapfer */ 17904aae283SPali Rohár dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1; 1801d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 1811d9f2626SSebastian Kapfer 18204aae283SPali Rohár dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1; 1831d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 1841d9f2626SSebastian Kapfer 18504aae283SPali Rohár dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1; 1861d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 1871d9f2626SSebastian Kapfer 1881d9f2626SSebastian Kapfer /* 1891d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 1901d9f2626SSebastian Kapfer * device later once we report the rest of the events. 1911d9f2626SSebastian Kapfer */ 19204aae283SPali Rohár if (dev2) 1931d9f2626SSebastian Kapfer input_sync(dev2); 1941d9f2626SSebastian Kapfer } 1951d9f2626SSebastian Kapfer 19625bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 1971da177e4SLinus Torvalds { 1981da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1991da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 2002e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 2012e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 2021da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 203c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 2041da177e4SLinus Torvalds 20599df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 206d2f4012fSYotam Medini left = packet[2] & 0x10; 207d2f4012fSYotam Medini right = packet[2] & 0x08; 2081da177e4SLinus Torvalds middle = 0; 2091da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 2101da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 2111da177e4SLinus Torvalds z = packet[5]; 2121da177e4SLinus Torvalds } else { 2131da177e4SLinus Torvalds left = packet[3] & 1; 2141da177e4SLinus Torvalds right = packet[3] & 2; 2151da177e4SLinus Torvalds middle = packet[3] & 4; 2161da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2171da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2181da177e4SLinus Torvalds z = packet[5]; 2191da177e4SLinus Torvalds } 2201da177e4SLinus Torvalds 22199df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2223c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2233c00bb96SLaszlo Kajan forward = packet[2] & 4; 224c30b4c10SIvan Casado Ruiz } 225c30b4c10SIvan Casado Ruiz 22699df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 227c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 228c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 229c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 230c30b4c10SIvan Casado Ruiz forward = back = 0; 231c30b4c10SIvan Casado Ruiz } 232c30b4c10SIvan Casado Ruiz 2331da177e4SLinus Torvalds ges = packet[2] & 1; 2341da177e4SLinus Torvalds fin = packet[2] & 2; 2351da177e4SLinus Torvalds 23699df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2371da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2381da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 239d7ed5d88SUlrich Dangel 24004aae283SPali Rohár alps_report_buttons(dev2, dev, left, right, middle); 241d7ed5d88SUlrich Dangel 2421da177e4SLinus Torvalds input_sync(dev2); 2431da177e4SLinus Torvalds return; 2441da177e4SLinus Torvalds } 2451da177e4SLinus Torvalds 24604aae283SPali Rohár alps_report_buttons(dev, dev2, left, right, middle); 247d7ed5d88SUlrich Dangel 2481da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 24971bb21b6SMaxim Levitsky if (ges && !fin) 25071bb21b6SMaxim Levitsky z = 40; 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds /* 2531da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 2541da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 2551da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 2561da177e4SLinus Torvalds */ 2571da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 2581da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2591da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2601da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 2611da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 2621da177e4SLinus Torvalds input_sync(dev); 2631da177e4SLinus Torvalds } 2641da177e4SLinus Torvalds priv->prev_fin = fin; 2651da177e4SLinus Torvalds 26671bb21b6SMaxim Levitsky if (z > 30) 26771bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 26871bb21b6SMaxim Levitsky if (z < 25) 26971bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds if (z > 0) { 2721da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2731da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2741da177e4SLinus Torvalds } 2751da177e4SLinus Torvalds 2761da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 2771da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 2781da177e4SLinus Torvalds 27999df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) 280e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 2811da177e4SLinus Torvalds 28299df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 283c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 284c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 2851da177e4SLinus Torvalds } 2861da177e4SLinus Torvalds 28799df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 28871bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 28971bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 29071bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 29171bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 29271bb21b6SMaxim Levitsky } 29371bb21b6SMaxim Levitsky 2941da177e4SLinus Torvalds input_sync(dev); 2951da177e4SLinus Torvalds } 2961da177e4SLinus Torvalds 29701ce661fSSeth Forshee /* 298ee65d4b3SYunkang Tang * Process bitmap data for V5 protocols. Return value is null. 299ee65d4b3SYunkang Tang * 300ee65d4b3SYunkang Tang * The bitmaps don't have enough data to track fingers, so this function 301ee65d4b3SYunkang Tang * only generates points representing a bounding box of at most two contacts. 30202d04254SHans de Goede * These two points are returned in fields->mt. 303ee65d4b3SYunkang Tang */ 304ee65d4b3SYunkang Tang static void alps_process_bitmap_dolphin(struct alps_data *priv, 30502d04254SHans de Goede struct alps_fields *fields) 306ee65d4b3SYunkang Tang { 307ee65d4b3SYunkang Tang int box_middle_x, box_middle_y; 308ee65d4b3SYunkang Tang unsigned int x_map, y_map; 309ee65d4b3SYunkang Tang unsigned char start_bit, end_bit; 310ee65d4b3SYunkang Tang unsigned char x_msb, x_lsb, y_msb, y_lsb; 311ee65d4b3SYunkang Tang 312ee65d4b3SYunkang Tang x_map = fields->x_map; 313ee65d4b3SYunkang Tang y_map = fields->y_map; 314ee65d4b3SYunkang Tang 315ee65d4b3SYunkang Tang if (!x_map || !y_map) 316ee65d4b3SYunkang Tang return; 317ee65d4b3SYunkang Tang 318ee65d4b3SYunkang Tang /* Get Most-significant and Least-significant bit */ 319ee65d4b3SYunkang Tang x_msb = fls(x_map); 320ee65d4b3SYunkang Tang x_lsb = ffs(x_map); 321ee65d4b3SYunkang Tang y_msb = fls(y_map); 322ee65d4b3SYunkang Tang y_lsb = ffs(y_map); 323ee65d4b3SYunkang Tang 324ee65d4b3SYunkang Tang /* Most-significant bit should never exceed max sensor line number */ 325ee65d4b3SYunkang Tang if (x_msb > priv->x_bits || y_msb > priv->y_bits) 326ee65d4b3SYunkang Tang return; 327ee65d4b3SYunkang Tang 328ee65d4b3SYunkang Tang if (fields->fingers > 1) { 329ee65d4b3SYunkang Tang start_bit = priv->x_bits - x_msb; 330ee65d4b3SYunkang Tang end_bit = priv->x_bits - x_lsb; 331ee65d4b3SYunkang Tang box_middle_x = (priv->x_max * (start_bit + end_bit)) / 332ee65d4b3SYunkang Tang (2 * (priv->x_bits - 1)); 333ee65d4b3SYunkang Tang 334ee65d4b3SYunkang Tang start_bit = y_lsb - 1; 335ee65d4b3SYunkang Tang end_bit = y_msb - 1; 336ee65d4b3SYunkang Tang box_middle_y = (priv->y_max * (start_bit + end_bit)) / 337ee65d4b3SYunkang Tang (2 * (priv->y_bits - 1)); 33802d04254SHans de Goede fields->mt[0] = fields->st; 33902d04254SHans de Goede fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x; 34002d04254SHans de Goede fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y; 341ee65d4b3SYunkang Tang } 342ee65d4b3SYunkang Tang } 343ee65d4b3SYunkang Tang 344036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 345036e6c7bSHans de Goede struct alps_bitmap_point *low, 346036e6c7bSHans de Goede struct alps_bitmap_point *high, 347036e6c7bSHans de Goede int *fingers) 348036e6c7bSHans de Goede { 349036e6c7bSHans de Goede struct alps_bitmap_point *point; 350036e6c7bSHans de Goede int i, bit, prev_bit = 0; 351036e6c7bSHans de Goede 352036e6c7bSHans de Goede point = low; 353036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 354036e6c7bSHans de Goede bit = map & 1; 355036e6c7bSHans de Goede if (bit) { 356036e6c7bSHans de Goede if (!prev_bit) { 357036e6c7bSHans de Goede point->start_bit = i; 358105affbfSHans de Goede point->num_bits = 0; 359036e6c7bSHans de Goede (*fingers)++; 360036e6c7bSHans de Goede } 361036e6c7bSHans de Goede point->num_bits++; 362036e6c7bSHans de Goede } else { 363036e6c7bSHans de Goede if (prev_bit) 364036e6c7bSHans de Goede point = high; 365036e6c7bSHans de Goede } 366036e6c7bSHans de Goede prev_bit = bit; 367036e6c7bSHans de Goede } 368036e6c7bSHans de Goede } 369036e6c7bSHans de Goede 370ee65d4b3SYunkang Tang /* 37101ce661fSSeth Forshee * Process bitmap data from v3 and v4 protocols. Returns the number of 37201ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 37301ce661fSSeth Forshee * bitmaps was empty. 37401ce661fSSeth Forshee * 37501ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 37601ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 37702d04254SHans de Goede * These points are returned in fields->mt when the return value 37801ce661fSSeth Forshee * is greater than 0. 37901ce661fSSeth Forshee */ 3807a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 38102d04254SHans de Goede struct alps_fields *fields) 38201ce661fSSeth Forshee { 383036e6c7bSHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers; 38401ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 38501ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 38601ce661fSSeth Forshee 38702d04254SHans de Goede if (!fields->x_map || !fields->y_map) 38801ce661fSSeth Forshee return 0; 38901ce661fSSeth Forshee 39002d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 39102d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 39201ce661fSSeth Forshee 39301ce661fSSeth Forshee /* 39401ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 39501ce661fSSeth Forshee * on either axis as the finger count. 39601ce661fSSeth Forshee */ 39701ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 39801ce661fSSeth Forshee 39901ce661fSSeth Forshee /* 40020bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 40120bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 40201ce661fSSeth Forshee */ 40301ce661fSSeth Forshee if (fingers_x == 1) { 40428835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 40501ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 40601ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 40701ce661fSSeth Forshee x_high.num_bits = max(i, 1); 40820bea68bSHans de Goede } 40920bea68bSHans de Goede if (fingers_y == 1) { 41028835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 41101ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 41201ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 41301ce661fSSeth Forshee y_high.num_bits = max(i, 1); 41401ce661fSSeth Forshee } 41501ce661fSSeth Forshee 41602d04254SHans de Goede fields->mt[0].x = 41702d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4187a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 41902d04254SHans de Goede fields->mt[0].y = 42002d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4217a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 42201ce661fSSeth Forshee 42302d04254SHans de Goede fields->mt[1].x = 42402d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4257a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 42602d04254SHans de Goede fields->mt[1].y = 42702d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4287a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 42901ce661fSSeth Forshee 43040e8f53bSHans de Goede /* y-bitmap order is reversed, except on rushmore */ 431fb2dd7a6SDmitry Torokhov if (priv->proto_version != ALPS_PROTO_V3_RUSHMORE) { 43202d04254SHans de Goede fields->mt[0].y = priv->y_max - fields->mt[0].y; 43302d04254SHans de Goede fields->mt[1].y = priv->y_max - fields->mt[1].y; 43440e8f53bSHans de Goede } 43540e8f53bSHans de Goede 43601ce661fSSeth Forshee return fingers; 43701ce661fSSeth Forshee } 43801ce661fSSeth Forshee 439cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 44001ce661fSSeth Forshee { 44101ce661fSSeth Forshee input_mt_slot(dev, slot); 442cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 44301ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 44401ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 44501ce661fSSeth Forshee } 44601ce661fSSeth Forshee 447cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 44801ce661fSSeth Forshee { 44902d04254SHans de Goede struct alps_data *priv = psmouse->private; 45002d04254SHans de Goede struct input_dev *dev = psmouse->dev; 45102d04254SHans de Goede struct alps_fields *f = &priv->f; 452cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 45302d04254SHans de Goede 454448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 455cdf333efSHans de Goede for (i = 0; i < n; i++) 456cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 457cdf333efSHans de Goede 458cdf333efSHans de Goede input_mt_sync_frame(dev); 45901ce661fSSeth Forshee } 46001ce661fSSeth Forshee 46168c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 46268c21870SHans de Goede { 46368c21870SHans de Goede struct alps_data *priv = psmouse->private; 46468c21870SHans de Goede struct input_dev *dev = psmouse->dev; 46568c21870SHans de Goede struct alps_fields *f = &priv->f; 46668c21870SHans de Goede 46768c21870SHans de Goede /* Use st data when we don't have mt data */ 46868c21870SHans de Goede if (fingers < 2) { 46968c21870SHans de Goede f->mt[0].x = f->st.x; 47068c21870SHans de Goede f->mt[0].y = f->st.y; 47168c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 47268c21870SHans de Goede } 47368c21870SHans de Goede 47499d9996cSHans de Goede alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2); 47568c21870SHans de Goede 47668c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 47768c21870SHans de Goede 47868c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 47968c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 48068c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 48168c21870SHans de Goede 48268c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 48368c21870SHans de Goede 48468c21870SHans de Goede input_sync(dev); 48568c21870SHans de Goede } 48668c21870SHans de Goede 48725bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 48825bded7cSSeth Forshee { 48925bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 49025bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 49125bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 49225bded7cSSeth Forshee int x, y, z, left, right, middle; 49325bded7cSSeth Forshee 49434412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 49534412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 49634412ba2SPali Rohár psmouse_warn(psmouse, 49734412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 49834412ba2SPali Rohár return; 49934412ba2SPali Rohár } 50034412ba2SPali Rohár 50125bded7cSSeth Forshee /* Sanity check packet */ 50225bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 50325bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 50425bded7cSSeth Forshee return; 50525bded7cSSeth Forshee } 50625bded7cSSeth Forshee 50725bded7cSSeth Forshee /* 50825bded7cSSeth Forshee * There's a special packet that seems to indicate the end 50925bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 51025bded7cSSeth Forshee */ 51125bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 51225bded7cSSeth Forshee return; 51325bded7cSSeth Forshee 51425bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 51525bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 51625bded7cSSeth Forshee z = (packet[4] & 0x7c) >> 2; 51725bded7cSSeth Forshee 51825bded7cSSeth Forshee /* 51925bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 52025bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 52125bded7cSSeth Forshee * to compensate. 52225bded7cSSeth Forshee */ 52325bded7cSSeth Forshee x /= 8; 52425bded7cSSeth Forshee y /= 8; 52525bded7cSSeth Forshee 52625bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 52725bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 52825bded7cSSeth Forshee 52925bded7cSSeth Forshee /* 53025bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 53125bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 53225bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 53325bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 53425bded7cSSeth Forshee * packet. 53525bded7cSSeth Forshee */ 53625bded7cSSeth Forshee left = packet[3] & 0x01; 53725bded7cSSeth Forshee right = packet[3] & 0x02; 53825bded7cSSeth Forshee middle = packet[3] & 0x04; 53925bded7cSSeth Forshee 54025bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 54125bded7cSSeth Forshee (left || right || middle)) 54225bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 54325bded7cSSeth Forshee 54425bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 54525bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 54625bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 54725bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 54825bded7cSSeth Forshee } 54925bded7cSSeth Forshee 55025bded7cSSeth Forshee input_sync(dev); 55125bded7cSSeth Forshee return; 55225bded7cSSeth Forshee } 55325bded7cSSeth Forshee 554f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 555f85e5001SKevin Cernekee { 556f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 557f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 558f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 559f85e5001SKevin Cernekee 560f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 561f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 562f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 563f85e5001SKevin Cernekee } 564f85e5001SKevin Cernekee 56538c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 566ee65d4b3SYunkang Tang struct psmouse *psmouse) 567f85e5001SKevin Cernekee { 568f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 569f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 570f85e5001SKevin Cernekee 571f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 572f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 573f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 574f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 575f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 576f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 577f85e5001SKevin Cernekee (p[4] & 0x01); 578f85e5001SKevin Cernekee 57902d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 580f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 58102d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 58202d04254SHans de Goede f->pressure = p[5] & 0x7f; 583f85e5001SKevin Cernekee 584f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 58538c11eaaSHans de Goede 58638c11eaaSHans de Goede return 0; 587f85e5001SKevin Cernekee } 588f85e5001SKevin Cernekee 58938c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 590ee65d4b3SYunkang Tang struct psmouse *psmouse) 5911302bac3SKevin Cernekee { 592ee65d4b3SYunkang Tang alps_decode_pinnacle(f, p, psmouse); 5931302bac3SKevin Cernekee 594f105e34aSYunkang Tang /* Rushmore's packet decode has a bit difference with Pinnacle's */ 595f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 596f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 5971302bac3SKevin Cernekee f->x_map |= (p[5] & 0x10) << 11; 5981302bac3SKevin Cernekee f->y_map |= (p[5] & 0x20) << 6; 59938c11eaaSHans de Goede 60038c11eaaSHans de Goede return 0; 6011302bac3SKevin Cernekee } 6021302bac3SKevin Cernekee 60338c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 604ee65d4b3SYunkang Tang struct psmouse *psmouse) 60575af9e56SDave Turvene { 606ee65d4b3SYunkang Tang u64 palm_data = 0; 607ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 608ee65d4b3SYunkang Tang 60975af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 61075af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 61175af9e56SDave Turvene 612ee65d4b3SYunkang Tang if (!f->is_mp) { 61302d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 61402d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 61502d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 61675af9e56SDave Turvene alps_decode_buttons_v3(f, p); 617ee65d4b3SYunkang Tang } else { 618ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 619ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 620ee65d4b3SYunkang Tang 621ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 622ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 623ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 624ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 625ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 626ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 627ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 628ee65d4b3SYunkang Tang 629ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 630ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 631ee65d4b3SYunkang Tang 632ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 633ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 634ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 635ee65d4b3SYunkang Tang } 63638c11eaaSHans de Goede 63738c11eaaSHans de Goede return 0; 63875af9e56SDave Turvene } 63975af9e56SDave Turvene 640ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 64125bded7cSSeth Forshee { 64225bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 64325bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 64425bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 64502d04254SHans de Goede struct alps_fields *f = &priv->f; 64602d04254SHans de Goede int fingers = 0; 647f85e5001SKevin Cernekee 64802d04254SHans de Goede memset(f, 0, sizeof(*f)); 64902d04254SHans de Goede 65002d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 65125bded7cSSeth Forshee 65225bded7cSSeth Forshee /* 65301ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 65401ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 65501ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 65601ce661fSSeth Forshee * bit 6 of packet[4] set. 65725bded7cSSeth Forshee */ 65825bded7cSSeth Forshee if (priv->multi_packet) { 65925bded7cSSeth Forshee /* 66025bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 66125bded7cSSeth Forshee * sequence, but then what follows is another position 66225bded7cSSeth Forshee * packet. Check for this, and when it happens process the 66325bded7cSSeth Forshee * position packet as usual. 66425bded7cSSeth Forshee */ 66502d04254SHans de Goede if (f->is_mp) { 66602d04254SHans de Goede fingers = f->fingers; 667fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3 || 668fb2dd7a6SDmitry Torokhov priv->proto_version == ALPS_PROTO_V3_RUSHMORE) { 66902d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 67020bea68bSHans de Goede fingers = 0; /* Use st data */ 67101ce661fSSeth Forshee 67201ce661fSSeth Forshee /* Now process position packet */ 67302d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 674ee65d4b3SYunkang Tang psmouse); 675ee65d4b3SYunkang Tang } else { 676ee65d4b3SYunkang Tang /* 677ee65d4b3SYunkang Tang * Because Dolphin uses position packet's 678ee65d4b3SYunkang Tang * coordinate data as Pt1 and uses it to 679ee65d4b3SYunkang Tang * calculate Pt2, so we need to do position 680ee65d4b3SYunkang Tang * packet decode first. 681ee65d4b3SYunkang Tang */ 68202d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 683ee65d4b3SYunkang Tang psmouse); 684ee65d4b3SYunkang Tang 685ee65d4b3SYunkang Tang /* 686ee65d4b3SYunkang Tang * Since Dolphin's finger number is reliable, 687ee65d4b3SYunkang Tang * there is no need to compare with bmap_fn. 688ee65d4b3SYunkang Tang */ 68902d04254SHans de Goede alps_process_bitmap_dolphin(priv, f); 690ee65d4b3SYunkang Tang } 69101ce661fSSeth Forshee } else { 69201ce661fSSeth Forshee priv->multi_packet = 0; 69325bded7cSSeth Forshee } 69425bded7cSSeth Forshee } 69525bded7cSSeth Forshee 69601ce661fSSeth Forshee /* 69701ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 69801ce661fSSeth Forshee * times it seems to be set is in situations where the data is 69901ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 70001ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 70101ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 70201ce661fSSeth Forshee * bit set. 70301ce661fSSeth Forshee */ 70402d04254SHans de Goede if (f->is_mp) 70501ce661fSSeth Forshee return; 70601ce661fSSeth Forshee 70702d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 70825bded7cSSeth Forshee priv->multi_packet = 1; 70901ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 71001ce661fSSeth Forshee return; 71101ce661fSSeth Forshee } 71201ce661fSSeth Forshee 71325bded7cSSeth Forshee priv->multi_packet = 0; 71425bded7cSSeth Forshee 71525bded7cSSeth Forshee /* 71625bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 71725bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 71825bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 71925bded7cSSeth Forshee * Ignore them. 72025bded7cSSeth Forshee */ 72102d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 72225bded7cSSeth Forshee return; 72325bded7cSSeth Forshee 72468c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 72525bded7cSSeth Forshee 72634412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 72734412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 72802d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 72902d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 73002d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 73125bded7cSSeth Forshee input_sync(dev2); 73225bded7cSSeth Forshee } 73325bded7cSSeth Forshee } 73425bded7cSSeth Forshee 73525bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 73625bded7cSSeth Forshee { 73725bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 73825bded7cSSeth Forshee 73925bded7cSSeth Forshee /* 74025bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 74125bded7cSSeth Forshee * touchpad data and one representing trackstick data. 74225bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 74325bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 74425bded7cSSeth Forshee * observed in the last byte of either of the other types 74525bded7cSSeth Forshee * of packets. 74625bded7cSSeth Forshee */ 74725bded7cSSeth Forshee if (packet[5] == 0x3f) { 74825bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 74925bded7cSSeth Forshee return; 75025bded7cSSeth Forshee } 75125bded7cSSeth Forshee 752ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 75325bded7cSSeth Forshee } 75425bded7cSSeth Forshee 75595f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 75695f75e91SYunkang Tang { 75795f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 75895f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 75995f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 76095f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 76195f75e91SYunkang Tang int x, y, z, left, right, middle; 76295f75e91SYunkang Tang 76395f75e91SYunkang Tang /* 76495f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 76595f75e91SYunkang Tang * or Trackpoint. 76695f75e91SYunkang Tang * Touchpad: 0 - 0x7E 76795f75e91SYunkang Tang * Trackpoint: 0x7F 76895f75e91SYunkang Tang */ 76995f75e91SYunkang Tang if (packet[5] == 0x7F) { 77095f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 77134412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 77234412ba2SPali Rohár psmouse_warn(psmouse, 77334412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 77495f75e91SYunkang Tang return; 77534412ba2SPali Rohár } 77695f75e91SYunkang Tang 77795f75e91SYunkang Tang /* Trackpoint packet */ 77895f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 77995f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 78095f75e91SYunkang Tang z = packet[4]; 78195f75e91SYunkang Tang left = packet[3] & 0x01; 78295f75e91SYunkang Tang right = packet[3] & 0x02; 78395f75e91SYunkang Tang middle = packet[3] & 0x04; 78495f75e91SYunkang Tang 78595f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 78695f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 78795f75e91SYunkang Tang x = y = z = 0; 78895f75e91SYunkang Tang 78995f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 79095f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 79195f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 79295f75e91SYunkang Tang 79395f75e91SYunkang Tang input_report_key(dev2, BTN_LEFT, left); 79495f75e91SYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 79595f75e91SYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 79695f75e91SYunkang Tang 79795f75e91SYunkang Tang input_sync(dev2); 79895f75e91SYunkang Tang return; 79995f75e91SYunkang Tang } 80095f75e91SYunkang Tang 80195f75e91SYunkang Tang /* Touchpad packet */ 80295f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 80395f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 80495f75e91SYunkang Tang z = packet[5]; 80595f75e91SYunkang Tang left = packet[3] & 0x01; 80695f75e91SYunkang Tang right = packet[3] & 0x02; 80795f75e91SYunkang Tang 80895f75e91SYunkang Tang if (z > 30) 80995f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 81095f75e91SYunkang Tang if (z < 25) 81195f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 81295f75e91SYunkang Tang 81395f75e91SYunkang Tang if (z > 0) { 81495f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 81595f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 81695f75e91SYunkang Tang } 81795f75e91SYunkang Tang 81895f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 81995f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 82095f75e91SYunkang Tang 82195f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 82295f75e91SYunkang Tang input_report_key(dev, BTN_LEFT, left); 82395f75e91SYunkang Tang input_report_key(dev, BTN_RIGHT, right); 82495f75e91SYunkang Tang 82595f75e91SYunkang Tang input_sync(dev); 82695f75e91SYunkang Tang } 82795f75e91SYunkang Tang 82825bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 82925bded7cSSeth Forshee { 8303b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 83125bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 83202d04254SHans de Goede struct alps_fields *f = &priv->f; 83368c21870SHans de Goede int offset; 8343b7e09faSGeorge Pantalos 8353b7e09faSGeorge Pantalos /* 8363b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8373b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8383b7e09faSGeorge Pantalos * track our position in the bitmap packet. 8393b7e09faSGeorge Pantalos */ 8403b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 8413b7e09faSGeorge Pantalos /* sync, reset position */ 8423b7e09faSGeorge Pantalos priv->multi_packet = 0; 8433b7e09faSGeorge Pantalos } 8443b7e09faSGeorge Pantalos 8453b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 8463b7e09faSGeorge Pantalos return; 8473b7e09faSGeorge Pantalos 8483b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 8493b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 8503b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 8513b7e09faSGeorge Pantalos 8523b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 8533b7e09faSGeorge Pantalos priv->multi_packet = 0; 8543b7e09faSGeorge Pantalos 85502d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 8563b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 8573b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 8583b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 85902d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 8603b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 8613b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 8623b7e09faSGeorge Pantalos 86302d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 8643b7e09faSGeorge Pantalos } 86525bded7cSSeth Forshee 866b0cfb794SAndreas Bosch f->left = !!(packet[4] & 0x01); 867b0cfb794SAndreas Bosch f->right = !!(packet[4] & 0x02); 86825bded7cSSeth Forshee 86902d04254SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 87025bded7cSSeth Forshee ((packet[0] & 0x30) >> 4); 87102d04254SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 87202d04254SHans de Goede f->pressure = packet[5] & 0x7f; 87325bded7cSSeth Forshee 87468c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 87525bded7cSSeth Forshee } 87625bded7cSSeth Forshee 8773808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 8783808843cSYunkang Tang { 8793808843cSYunkang Tang switch (psmouse->pktcnt) { 8803808843cSYunkang Tang case 3: 8813808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 8823808843cSYunkang Tang case 4: 8833808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 8843808843cSYunkang Tang case 6: 8853808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 8863808843cSYunkang Tang } 8873808843cSYunkang Tang return true; 8883808843cSYunkang Tang } 8893808843cSYunkang Tang 8903808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 8913808843cSYunkang Tang { 8923808843cSYunkang Tang unsigned char packet_id; 8933808843cSYunkang Tang 8943808843cSYunkang Tang if (byte[4] & 0x40) 8953808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 8963808843cSYunkang Tang else if (byte[4] & 0x01) 8973808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 8983808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 8993808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 9003808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 9013808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 9023808843cSYunkang Tang else 9033808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 9043808843cSYunkang Tang 9053808843cSYunkang Tang return packet_id; 9063808843cSYunkang Tang } 9073808843cSYunkang Tang 9083808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 9093808843cSYunkang Tang unsigned char *pkt, 9103808843cSYunkang Tang unsigned char pkt_id) 9113808843cSYunkang Tang { 9123808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9133808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9143808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9153808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9163808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9173808843cSYunkang Tang 9183808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9193808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9203808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9213808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9223808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9233808843cSYunkang Tang 9243808843cSYunkang Tang switch (pkt_id) { 9253808843cSYunkang Tang case V7_PACKET_ID_TWO: 9263808843cSYunkang Tang mt[1].x &= ~0x000F; 9273808843cSYunkang Tang mt[1].y |= 0x000F; 9283808843cSYunkang Tang break; 9293808843cSYunkang Tang 9303808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9313808843cSYunkang Tang mt[1].x &= ~0x003F; 9323808843cSYunkang Tang mt[1].y &= ~0x0020; 9333808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 9343808843cSYunkang Tang mt[1].y |= 0x001F; 9353808843cSYunkang Tang break; 9363808843cSYunkang Tang 9373808843cSYunkang Tang case V7_PACKET_ID_NEW: 9383808843cSYunkang Tang mt[1].x &= ~0x003F; 9393808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 9403808843cSYunkang Tang mt[1].y |= 0x000F; 9413808843cSYunkang Tang break; 9423808843cSYunkang Tang } 9433808843cSYunkang Tang 9443808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 9453808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 9463808843cSYunkang Tang } 9473808843cSYunkang Tang 9483808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 9493808843cSYunkang Tang { 9507091c443SHans de Goede int i, fingers = 0; 9513808843cSYunkang Tang 9527091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 9537091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 9547091c443SHans de Goede fingers++; 9557091c443SHans de Goede } 9563808843cSYunkang Tang 9577091c443SHans de Goede return fingers; 9583808843cSYunkang Tang } 9593808843cSYunkang Tang 9603808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 9613808843cSYunkang Tang unsigned char *p, 9623808843cSYunkang Tang struct psmouse *psmouse) 9633808843cSYunkang Tang { 964d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 9653808843cSYunkang Tang unsigned char pkt_id; 9663808843cSYunkang Tang 9673808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 9683808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 9693808843cSYunkang Tang return 0; 9703808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 9713808843cSYunkang Tang return -1; 9728b238115SHans de Goede /* 9738b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 9748b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 9758b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 9768b238115SHans de Goede * us. 9778b238115SHans de Goede * 9788b238115SHans de Goede * NEW packets have 3 problems: 9798b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 9808b238115SHans de Goede * this can be worked around by preserving the old button state 9818b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 9828b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 9838b238115SHans de Goede * the old finger count as that may mismatch with the amount of 9848b238115SHans de Goede * touch coordinates we've available in the NEW packet 9858b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 9868b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 9878b238115SHans de Goede * non NEW packet comes in 9888b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 9898b238115SHans de Goede */ 9908b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 9918b238115SHans de Goede return 1; 9923808843cSYunkang Tang 9933808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 9943808843cSYunkang Tang 9953808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 9963808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 9978b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 9983808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 9993808843cSYunkang Tang 1000d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1001d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1002d27eb793SHans de Goede if (p[0] & 0x20) 1003d27eb793SHans de Goede f->fingers++; 1004d27eb793SHans de Goede if (p[0] & 0x10) 1005d27eb793SHans de Goede f->fingers++; 1006d27eb793SHans de Goede } else { 1007d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1008d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1009d27eb793SHans de Goede } 1010d27eb793SHans de Goede 10117091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10127091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10137091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10147091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10157091c443SHans de Goede f->mt[1].x = 0; 10167091c443SHans de Goede f->mt[1].y = 0; 10177091c443SHans de Goede } 10187091c443SHans de Goede 10193808843cSYunkang Tang return 0; 10203808843cSYunkang Tang } 10213808843cSYunkang Tang 10223808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10233808843cSYunkang Tang { 10243808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10253808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10263808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10273808843cSYunkang Tang int x, y, z, left, right, middle; 10283808843cSYunkang Tang 102934412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 103034412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 103134412ba2SPali Rohár psmouse_warn(psmouse, 103234412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 103334412ba2SPali Rohár return; 103434412ba2SPali Rohár } 103534412ba2SPali Rohár 10363808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 10373808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 10383808843cSYunkang Tang ((packet[3] & 0x20) << 1); 10393808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 10403808843cSYunkang Tang 10413808843cSYunkang Tang left = (packet[1] & 0x01); 10423808843cSYunkang Tang right = (packet[1] & 0x02) >> 1; 10433808843cSYunkang Tang middle = (packet[1] & 0x04) >> 2; 10443808843cSYunkang Tang 10453808843cSYunkang Tang /* Divide 2 since trackpoint's speed is too fast */ 10463808843cSYunkang Tang input_report_rel(dev2, REL_X, (char)x / 2); 10473808843cSYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 2)); 10483808843cSYunkang Tang 10493808843cSYunkang Tang input_report_key(dev2, BTN_LEFT, left); 10503808843cSYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 10513808843cSYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 10523808843cSYunkang Tang 10533808843cSYunkang Tang input_sync(dev2); 10543808843cSYunkang Tang } 10553808843cSYunkang Tang 10563808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 10573808843cSYunkang Tang { 10583808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10593808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 10603808843cSYunkang Tang struct alps_fields *f = &priv->f; 10613808843cSYunkang Tang 10623808843cSYunkang Tang memset(f, 0, sizeof(*f)); 10633808843cSYunkang Tang 10643808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 10653808843cSYunkang Tang return; 10663808843cSYunkang Tang 10673808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 10683808843cSYunkang Tang 10693808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 10703808843cSYunkang Tang 10713808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 10723808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 10733808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 10743808843cSYunkang Tang 10753808843cSYunkang Tang input_sync(dev); 10763808843cSYunkang Tang } 10773808843cSYunkang Tang 10783808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 10793808843cSYunkang Tang { 10803808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10813808843cSYunkang Tang 10823808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 10833808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 10843808843cSYunkang Tang else 10853808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 10863808843cSYunkang Tang } 10873808843cSYunkang Tang 108804aae283SPali Rohár static DEFINE_MUTEX(alps_mutex); 108904aae283SPali Rohár 109004aae283SPali Rohár static void alps_register_bare_ps2_mouse(struct work_struct *work) 109104aae283SPali Rohár { 109204aae283SPali Rohár struct alps_data *priv = 109304aae283SPali Rohár container_of(work, struct alps_data, dev3_register_work.work); 109404aae283SPali Rohár struct psmouse *psmouse = priv->psmouse; 109504aae283SPali Rohár struct input_dev *dev3; 109604aae283SPali Rohár int error = 0; 109704aae283SPali Rohár 109804aae283SPali Rohár mutex_lock(&alps_mutex); 109904aae283SPali Rohár 110004aae283SPali Rohár if (priv->dev3) 110104aae283SPali Rohár goto out; 110204aae283SPali Rohár 110304aae283SPali Rohár dev3 = input_allocate_device(); 110404aae283SPali Rohár if (!dev3) { 110504aae283SPali Rohár psmouse_err(psmouse, "failed to allocate secondary device\n"); 110604aae283SPali Rohár error = -ENOMEM; 110704aae283SPali Rohár goto out; 110804aae283SPali Rohár } 110904aae283SPali Rohár 111004aae283SPali Rohár snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s", 111104aae283SPali Rohár psmouse->ps2dev.serio->phys, 111204aae283SPali Rohár (priv->dev2 ? "input2" : "input1")); 111304aae283SPali Rohár dev3->phys = priv->phys3; 111404aae283SPali Rohár 111504aae283SPali Rohár /* 111604aae283SPali Rohár * format of input device name is: "protocol vendor name" 111704aae283SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 111804aae283SPali Rohár */ 111904aae283SPali Rohár dev3->name = "PS/2 ALPS Mouse"; 112004aae283SPali Rohár 112104aae283SPali Rohár dev3->id.bustype = BUS_I8042; 112204aae283SPali Rohár dev3->id.vendor = 0x0002; 112304aae283SPali Rohár dev3->id.product = PSMOUSE_PS2; 112404aae283SPali Rohár dev3->id.version = 0x0000; 112504aae283SPali Rohár dev3->dev.parent = &psmouse->ps2dev.serio->dev; 112604aae283SPali Rohár 112704aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_X); 112804aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_Y); 112904aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_LEFT); 113004aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_RIGHT); 113104aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_MIDDLE); 113204aae283SPali Rohár 113304aae283SPali Rohár __set_bit(INPUT_PROP_POINTER, dev3->propbit); 113404aae283SPali Rohár 113504aae283SPali Rohár error = input_register_device(dev3); 113604aae283SPali Rohár if (error) { 113704aae283SPali Rohár psmouse_err(psmouse, 113804aae283SPali Rohár "failed to register secondary device: %d\n", 113904aae283SPali Rohár error); 114004aae283SPali Rohár input_free_device(dev3); 114104aae283SPali Rohár goto out; 114204aae283SPali Rohár } 114304aae283SPali Rohár 114404aae283SPali Rohár priv->dev3 = dev3; 114504aae283SPali Rohár 114604aae283SPali Rohár out: 114704aae283SPali Rohár /* 114804aae283SPali Rohár * Save the error code so that we can detect that we 114904aae283SPali Rohár * already tried to create the device. 115004aae283SPali Rohár */ 115104aae283SPali Rohár if (error) 115204aae283SPali Rohár priv->dev3 = ERR_PTR(error); 115304aae283SPali Rohár 115404aae283SPali Rohár mutex_unlock(&alps_mutex); 115504aae283SPali Rohár } 115604aae283SPali Rohár 115759c30afbSHans de Goede static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 11581d9f2626SSebastian Kapfer unsigned char packet[], 11591d9f2626SSebastian Kapfer bool report_buttons) 11601d9f2626SSebastian Kapfer { 116159c30afbSHans de Goede struct alps_data *priv = psmouse->private; 116259c30afbSHans de Goede struct input_dev *dev; 116359c30afbSHans de Goede 1164e3a79212SHans de Goede /* Figure out which device to use to report the bare packet */ 1165e3a79212SHans de Goede if (priv->proto_version == ALPS_PROTO_V2 && 1166e3a79212SHans de Goede (priv->flags & ALPS_DUALPOINT)) { 1167e3a79212SHans de Goede /* On V2 devices the DualPoint Stick reports bare packets */ 1168e3a79212SHans de Goede dev = priv->dev2; 1169e3a79212SHans de Goede } else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) { 117059c30afbSHans de Goede /* Register dev3 mouse if we received PS/2 packet first time */ 117159c30afbSHans de Goede if (!IS_ERR(priv->dev3)) 117259c30afbSHans de Goede psmouse_queue_work(psmouse, &priv->dev3_register_work, 117359c30afbSHans de Goede 0); 117459c30afbSHans de Goede return; 117559c30afbSHans de Goede } else { 117659c30afbSHans de Goede dev = priv->dev3; 117759c30afbSHans de Goede } 117859c30afbSHans de Goede 11791d9f2626SSebastian Kapfer if (report_buttons) 118004aae283SPali Rohár alps_report_buttons(dev, NULL, 11811d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 11821d9f2626SSebastian Kapfer 118304aae283SPali Rohár input_report_rel(dev, REL_X, 11841d9f2626SSebastian Kapfer packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 118504aae283SPali Rohár input_report_rel(dev, REL_Y, 11861d9f2626SSebastian Kapfer packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 11871d9f2626SSebastian Kapfer 118804aae283SPali Rohár input_sync(dev); 11891d9f2626SSebastian Kapfer } 11901d9f2626SSebastian Kapfer 11911d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 11921da177e4SLinus Torvalds { 11931da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 11941da177e4SLinus Torvalds 11951d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 11961d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 11971d9f2626SSebastian Kapfer 11981d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 11991d9f2626SSebastian Kapfer /* 12001d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 12011d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 12021d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 12031d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 12041d9f2626SSebastian Kapfer */ 12051d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 12061d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12071d9f2626SSebastian Kapfer } 12081d9f2626SSebastian Kapfer 12091d9f2626SSebastian Kapfer del_timer(&priv->timer); 12101d9f2626SSebastian Kapfer 12111d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 12121d9f2626SSebastian Kapfer 12131d9f2626SSebastian Kapfer /* 12141d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 12151d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 12161d9f2626SSebastian Kapfer * next packet or we got garbage. 12171d9f2626SSebastian Kapfer */ 12181d9f2626SSebastian Kapfer 12191d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 12201d9f2626SSebastian Kapfer psmouse->packet[4] | 12211d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 122299df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1223b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12243b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 12253b112923SAndy Shevchenko psmouse->packet + 3); 12261d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 12271d9f2626SSebastian Kapfer } 12281d9f2626SSebastian Kapfer 122924af5cb9SKevin Cernekee priv->process_packet(psmouse); 12301d9f2626SSebastian Kapfer 12311d9f2626SSebastian Kapfer /* Continue with the next packet */ 12321d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 12331d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 12341d9f2626SSebastian Kapfer 12351d9f2626SSebastian Kapfer } else { 12361d9f2626SSebastian Kapfer 12371d9f2626SSebastian Kapfer /* 12381d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 12391d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 12401d9f2626SSebastian Kapfer * 12411d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 12421d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 12431d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1244b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 12451d9f2626SSebastian Kapfer * normal operation (user would need to press all 12461d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 12471d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 12481d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 12491d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1250b5d21704SDmitry Torokhov * de-synchronization. 12511d9f2626SSebastian Kapfer */ 12521d9f2626SSebastian Kapfer 125359c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 125459c30afbSHans de Goede false); 12551d9f2626SSebastian Kapfer 12561d9f2626SSebastian Kapfer /* 12571d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 12581d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 12591d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 12601d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 12611d9f2626SSebastian Kapfer * is normally 1. 12621d9f2626SSebastian Kapfer */ 12631d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 12641d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 12651d9f2626SSebastian Kapfer } 12661d9f2626SSebastian Kapfer 12671d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12681d9f2626SSebastian Kapfer } 12691d9f2626SSebastian Kapfer 12701d9f2626SSebastian Kapfer static void alps_flush_packet(unsigned long data) 12711d9f2626SSebastian Kapfer { 12721d9f2626SSebastian Kapfer struct psmouse *psmouse = (struct psmouse *)data; 127324af5cb9SKevin Cernekee struct alps_data *priv = psmouse->private; 12741d9f2626SSebastian Kapfer 12751d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 12761d9f2626SSebastian Kapfer 1277b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 12781d9f2626SSebastian Kapfer 12791d9f2626SSebastian Kapfer /* 12801d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 12811d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 12821d9f2626SSebastian Kapfer * ALPS packet. 12831d9f2626SSebastian Kapfer */ 12841d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 12851d9f2626SSebastian Kapfer psmouse->packet[4] | 12861d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1287b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12883b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 12893b112923SAndy Shevchenko psmouse->packet + 3); 12901d9f2626SSebastian Kapfer } else { 129124af5cb9SKevin Cernekee priv->process_packet(psmouse); 12921d9f2626SSebastian Kapfer } 12931d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 12941d9f2626SSebastian Kapfer } 12951d9f2626SSebastian Kapfer 12961d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 12971d9f2626SSebastian Kapfer } 12981d9f2626SSebastian Kapfer 12991d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 13001d9f2626SSebastian Kapfer { 13011d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 13021d9f2626SSebastian Kapfer 13034ab8f7f3SPali Rohár /* 13044ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 13054ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 13064ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 13074ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 13084ab8f7f3SPali Rohár */ 13094ab8f7f3SPali Rohár if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) { 13101da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 131159c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, psmouse->packet, 13121d9f2626SSebastian Kapfer true); 13131da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13141da177e4SLinus Torvalds } 13151da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13161da177e4SLinus Torvalds } 13171da177e4SLinus Torvalds 13181d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 13191d9f2626SSebastian Kapfer 132099df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 13211d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 13221d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 13231d9f2626SSebastian Kapfer } 13241d9f2626SSebastian Kapfer 132599df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1326b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1327b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 132899df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 13291da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 13301d9f2626SSebastian Kapfer } 13311da177e4SLinus Torvalds 1332b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1333a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 133475af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 13351d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1336b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1337b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1338b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1339a7ef82aeSPali Rohár 1340fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && 1341a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1342a7ef82aeSPali Rohár /* 1343a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1344a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1345a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1346a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1347a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1348a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1349a7ef82aeSPali Rohár * filling the logs. 1350a7ef82aeSPali Rohár */ 1351a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1352a7ef82aeSPali Rohár } 1353a7ef82aeSPali Rohár 13541da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 13551d9f2626SSebastian Kapfer } 13561da177e4SLinus Torvalds 13573808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7 && 13583808843cSYunkang Tang !alps_is_valid_package_v7(psmouse)) { 13593808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 13603808843cSYunkang Tang psmouse->pktcnt - 1, 13613808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 13623808843cSYunkang Tang return PSMOUSE_BAD_DATA; 13633808843cSYunkang Tang } 13643808843cSYunkang Tang 1365b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 136624af5cb9SKevin Cernekee priv->process_packet(psmouse); 13671da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13681da177e4SLinus Torvalds } 13691da177e4SLinus Torvalds 13701da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13711da177e4SLinus Torvalds } 13721da177e4SLinus Torvalds 137325bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 137425bded7cSSeth Forshee { 137525bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 137625bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 137725bded7cSSeth Forshee int command; 137825bded7cSSeth Forshee unsigned char *param; 137925bded7cSSeth Forshee unsigned char dummy[4]; 138025bded7cSSeth Forshee 138125bded7cSSeth Forshee BUG_ON(nibble > 0xf); 138225bded7cSSeth Forshee 138325bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 138425bded7cSSeth Forshee param = (command & 0x0f00) ? 138525bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 138625bded7cSSeth Forshee 138725bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 138825bded7cSSeth Forshee return -1; 138925bded7cSSeth Forshee 139025bded7cSSeth Forshee return 0; 139125bded7cSSeth Forshee } 139225bded7cSSeth Forshee 139325bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 139425bded7cSSeth Forshee { 139525bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 139625bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 139725bded7cSSeth Forshee int i, nibble; 139825bded7cSSeth Forshee 139925bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 140025bded7cSSeth Forshee return -1; 140125bded7cSSeth Forshee 140225bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 140325bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 140425bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 140525bded7cSSeth Forshee return -1; 140625bded7cSSeth Forshee } 140725bded7cSSeth Forshee 140825bded7cSSeth Forshee return 0; 140925bded7cSSeth Forshee } 141025bded7cSSeth Forshee 141125bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 141225bded7cSSeth Forshee { 141325bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 141425bded7cSSeth Forshee unsigned char param[4]; 141525bded7cSSeth Forshee 141625bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 141725bded7cSSeth Forshee return -1; 141825bded7cSSeth Forshee 141925bded7cSSeth Forshee /* 142025bded7cSSeth Forshee * The address being read is returned in the first two bytes 142125bded7cSSeth Forshee * of the result. Check that this address matches the expected 142225bded7cSSeth Forshee * address. 142325bded7cSSeth Forshee */ 142425bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 142525bded7cSSeth Forshee return -1; 142625bded7cSSeth Forshee 142725bded7cSSeth Forshee return param[2]; 142825bded7cSSeth Forshee } 142925bded7cSSeth Forshee 143025bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 143125bded7cSSeth Forshee { 143225bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 143325bded7cSSeth Forshee return -1; 143425bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 143525bded7cSSeth Forshee } 143625bded7cSSeth Forshee 143725bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 143825bded7cSSeth Forshee { 143925bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 144025bded7cSSeth Forshee return -1; 144125bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 144225bded7cSSeth Forshee return -1; 144325bded7cSSeth Forshee return 0; 144425bded7cSSeth Forshee } 144525bded7cSSeth Forshee 144625bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 144725bded7cSSeth Forshee u8 value) 144825bded7cSSeth Forshee { 144925bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 145025bded7cSSeth Forshee return -1; 145125bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 145225bded7cSSeth Forshee } 145325bded7cSSeth Forshee 145424ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 145524ba9707SKevin Cernekee int repeated_command, unsigned char *param) 145624ba9707SKevin Cernekee { 145724ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 145824ba9707SKevin Cernekee 145924ba9707SKevin Cernekee param[0] = 0; 146024ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 146124ba9707SKevin Cernekee return -EIO; 146224ba9707SKevin Cernekee 146324ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 146424ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 146524ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 146624ba9707SKevin Cernekee return -EIO; 146724ba9707SKevin Cernekee 146824ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 146924ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 147024ba9707SKevin Cernekee return -EIO; 147124ba9707SKevin Cernekee 147239fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 147339fbe585SDmitry Torokhov repeated_command, param); 147424ba9707SKevin Cernekee return 0; 147524ba9707SKevin Cernekee } 147624ba9707SKevin Cernekee 14773808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 14783808843cSYunkang Tang { 14793808843cSYunkang Tang if (id[0] == 0x73) 14803808843cSYunkang Tang return true; 14813808843cSYunkang Tang 14823808843cSYunkang Tang if (id[0] == 0x88 && 14833808843cSYunkang Tang (id[1] == 0x07 || 14843808843cSYunkang Tang id[1] == 0x08 || 14853808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 14863808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 14873808843cSYunkang Tang return true; 14883808843cSYunkang Tang } 14893808843cSYunkang Tang 14903808843cSYunkang Tang return false; 14913808843cSYunkang Tang } 14923808843cSYunkang Tang 1493d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 149425bded7cSSeth Forshee { 149525bded7cSSeth Forshee unsigned char param[4]; 149625bded7cSSeth Forshee 149724ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 149825bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 149925bded7cSSeth Forshee return -1; 150025bded7cSSeth Forshee } 150125bded7cSSeth Forshee 15023808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 150325bded7cSSeth Forshee psmouse_dbg(psmouse, 150424ba9707SKevin Cernekee "unknown response while entering command mode\n"); 150525bded7cSSeth Forshee return -1; 150625bded7cSSeth Forshee } 150725bded7cSSeth Forshee return 0; 150825bded7cSSeth Forshee } 150925bded7cSSeth Forshee 151025bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 151125bded7cSSeth Forshee { 151225bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 151325bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 151425bded7cSSeth Forshee return -1; 151525bded7cSSeth Forshee return 0; 151625bded7cSSeth Forshee } 151725bded7cSSeth Forshee 15181da177e4SLinus Torvalds /* 15191da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 15201da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 15211da177e4SLinus Torvalds * I'd thought it would be other way around... 15221da177e4SLinus Torvalds */ 152325bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 15241da177e4SLinus Torvalds { 15251da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 15261da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 15271da177e4SLinus Torvalds 15281da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 15291da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 15301da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 15311da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 15321da177e4SLinus Torvalds return -1; 15331da177e4SLinus Torvalds 15341da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1535c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds return 0; 15381da177e4SLinus Torvalds } 15391da177e4SLinus Torvalds 154025bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 15411da177e4SLinus Torvalds { 15421da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 15431da177e4SLinus Torvalds 15441da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 15451da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15461da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15471da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15481da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15491da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 15501da177e4SLinus Torvalds return -1; 15511da177e4SLinus Torvalds 15521da177e4SLinus Torvalds /* 15531da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 15541da177e4SLinus Torvalds * get in our way 15551da177e4SLinus Torvalds */ 15561da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 15571da177e4SLinus Torvalds } 15581da177e4SLinus Torvalds 155995f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 156095f75e91SYunkang Tang { 156195f75e91SYunkang Tang int i, nibble; 156295f75e91SYunkang Tang 156395f75e91SYunkang Tang /* 156495f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 156595f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 156695f75e91SYunkang Tang */ 156795f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 156895f75e91SYunkang Tang nibble = (word >> i) & 0xf; 156995f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 157095f75e91SYunkang Tang return -1; 157195f75e91SYunkang Tang } 157295f75e91SYunkang Tang 157395f75e91SYunkang Tang return 0; 157495f75e91SYunkang Tang } 157595f75e91SYunkang Tang 157695f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 157795f75e91SYunkang Tang u16 addr, u16 value) 157895f75e91SYunkang Tang { 157995f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 158095f75e91SYunkang Tang 158195f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 158295f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 158395f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 158495f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 158595f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 158695f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 158795f75e91SYunkang Tang return -1; 158895f75e91SYunkang Tang 158995f75e91SYunkang Tang return 0; 159095f75e91SYunkang Tang } 159195f75e91SYunkang Tang 159295f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 159395f75e91SYunkang Tang { 159495f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 159595f75e91SYunkang Tang 159695f75e91SYunkang Tang if (enable) { 159795f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 159895f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 159995f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 160095f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 160195f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 160295f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 160395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 160495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 160595f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 160695f75e91SYunkang Tang return -1; 160795f75e91SYunkang Tang } else { 160895f75e91SYunkang Tang /* EC to exit monitor mode */ 160995f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 161095f75e91SYunkang Tang return -1; 161195f75e91SYunkang Tang } 161295f75e91SYunkang Tang 161395f75e91SYunkang Tang return 0; 161495f75e91SYunkang Tang } 161595f75e91SYunkang Tang 161695f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 161795f75e91SYunkang Tang { 161895f75e91SYunkang Tang u16 reg_val = 0x181; 161995f75e91SYunkang Tang int ret = -1; 162095f75e91SYunkang Tang 162195f75e91SYunkang Tang /* enter monitor mode, to write the register */ 162295f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 162395f75e91SYunkang Tang return -1; 162495f75e91SYunkang Tang 162595f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 162695f75e91SYunkang Tang 162795f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 162895f75e91SYunkang Tang ret = -1; 162995f75e91SYunkang Tang 163095f75e91SYunkang Tang return ret; 163195f75e91SYunkang Tang } 163295f75e91SYunkang Tang 16331da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 16341da177e4SLinus Torvalds { 16351da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 163624ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 16371da177e4SLinus Torvalds return -1; 16381da177e4SLinus Torvalds 16391da177e4SLinus Torvalds return 0; 16401da177e4SLinus Torvalds } 16411da177e4SLinus Torvalds 16421da177e4SLinus Torvalds /* 16431da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 16441da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 16451da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 16461da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 16471da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 16481da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 16491da177e4SLinus Torvalds * we don't fiddle with it. 16501da177e4SLinus Torvalds */ 16511da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 16521da177e4SLinus Torvalds { 16531da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 16541da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 16551da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 16561da177e4SLinus Torvalds unsigned char param[4]; 16571da177e4SLinus Torvalds 16581da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 16591da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16601da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 16611da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 16621da177e4SLinus Torvalds return -1; 16631da177e4SLinus Torvalds 16641da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 16651da177e4SLinus Torvalds return -1; 16661da177e4SLinus Torvalds 16671da177e4SLinus Torvalds return 0; 16681da177e4SLinus Torvalds } 16691da177e4SLinus Torvalds 1670f0d5c6f4SDmitry Torokhov /* 1671f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1672f0d5c6f4SDmitry Torokhov * Used in resync. 1673f0d5c6f4SDmitry Torokhov */ 1674f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1675f0d5c6f4SDmitry Torokhov { 1676f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1677b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1678b7802c5cSDmitry Torokhov bool poll_failed; 1679f0d5c6f4SDmitry Torokhov 168099df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 168125bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1682f0d5c6f4SDmitry Torokhov 1683f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1684f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1685f0d5c6f4SDmitry Torokhov 168699df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 168725bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 1688f0d5c6f4SDmitry Torokhov 168999df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1690f0d5c6f4SDmitry Torokhov return -1; 1691f0d5c6f4SDmitry Torokhov 1692f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 1693f0d5c6f4SDmitry Torokhov /* 1694f0d5c6f4SDmitry Torokhov * Poll the track stick ... 1695f0d5c6f4SDmitry Torokhov */ 1696f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1697f0d5c6f4SDmitry Torokhov return -1; 1698f0d5c6f4SDmitry Torokhov } 1699f0d5c6f4SDmitry Torokhov 1700f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 1701f0d5c6f4SDmitry Torokhov return 0; 1702f0d5c6f4SDmitry Torokhov } 1703f0d5c6f4SDmitry Torokhov 170425bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 17051da177e4SLinus Torvalds { 17061da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 17071da177e4SLinus Torvalds 170899df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 170925bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 17101da177e4SLinus Torvalds return -1; 1711b7802c5cSDmitry Torokhov } 17121da177e4SLinus Torvalds 1713b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 1714b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 17151da177e4SLinus Torvalds return -1; 1716963f626dSPeter Osterlund } 17171da177e4SLinus Torvalds 171825bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 1719b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 17201da177e4SLinus Torvalds return -1; 17211da177e4SLinus Torvalds } 17221da177e4SLinus Torvalds 172399df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 172425bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 17251da177e4SLinus Torvalds return -1; 1726b7802c5cSDmitry Torokhov } 17271da177e4SLinus Torvalds 17281e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 17291e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1730b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 17311e0c5b12SDmitry Torokhov return -1; 17321e0c5b12SDmitry Torokhov } 17331e0c5b12SDmitry Torokhov 17341e0c5b12SDmitry Torokhov return 0; 17351e0c5b12SDmitry Torokhov } 17361e0c5b12SDmitry Torokhov 173795f75e91SYunkang Tang static int alps_hw_init_v6(struct psmouse *psmouse) 173895f75e91SYunkang Tang { 173995f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 174095f75e91SYunkang Tang 174195f75e91SYunkang Tang /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 174295f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, true)) 174395f75e91SYunkang Tang return -1; 174495f75e91SYunkang Tang 174595f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 174695f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 174795f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 174895f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 174995f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 175095f75e91SYunkang Tang return -1; 175195f75e91SYunkang Tang 175295f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 175395f75e91SYunkang Tang return -1; 175495f75e91SYunkang Tang 175595f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 175695f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 175795f75e91SYunkang Tang return -1; 175895f75e91SYunkang Tang } 175995f75e91SYunkang Tang 176095f75e91SYunkang Tang return 0; 176195f75e91SYunkang Tang } 176295f75e91SYunkang Tang 176325bded7cSSeth Forshee /* 1764cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 176525bded7cSSeth Forshee */ 1766cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1767cd401204SKevin Cernekee int reg_base, bool enable) 176825bded7cSSeth Forshee { 1769cd401204SKevin Cernekee int reg_val, ret = -1; 177025bded7cSSeth Forshee 1771d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 177225bded7cSSeth Forshee return -1; 177325bded7cSSeth Forshee 1774cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1775cd401204SKevin Cernekee if (reg_val == -1) 1776cd401204SKevin Cernekee goto error; 1777cd401204SKevin Cernekee 177825bded7cSSeth Forshee if (enable) 177925bded7cSSeth Forshee reg_val |= 0x01; 178025bded7cSSeth Forshee else 178125bded7cSSeth Forshee reg_val &= ~0x01; 178225bded7cSSeth Forshee 1783cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 178425bded7cSSeth Forshee 1785cd401204SKevin Cernekee error: 1786cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 1787cd401204SKevin Cernekee ret = -1; 1788cd401204SKevin Cernekee return ret; 178925bded7cSSeth Forshee } 179025bded7cSSeth Forshee 179125bded7cSSeth Forshee /* Must be in command mode when calling this function */ 179225bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 179325bded7cSSeth Forshee { 179425bded7cSSeth Forshee int reg_val; 179525bded7cSSeth Forshee 179625bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 179725bded7cSSeth Forshee if (reg_val == -1) 179825bded7cSSeth Forshee return -1; 179925bded7cSSeth Forshee 180025bded7cSSeth Forshee reg_val |= 0x06; 180125bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 180225bded7cSSeth Forshee return -1; 180325bded7cSSeth Forshee 180425bded7cSSeth Forshee return 0; 180525bded7cSSeth Forshee } 180625bded7cSSeth Forshee 1807cd401204SKevin Cernekee static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 180825bded7cSSeth Forshee { 1809cd401204SKevin Cernekee int ret = -EIO, reg_val; 181025bded7cSSeth Forshee 1811d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 181225bded7cSSeth Forshee goto error; 181325bded7cSSeth Forshee 1814cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 181525bded7cSSeth Forshee if (reg_val == -1) 181625bded7cSSeth Forshee goto error; 1817cd401204SKevin Cernekee 1818cd401204SKevin Cernekee /* bit 7: trackstick is present */ 1819cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 1820cd401204SKevin Cernekee 1821cd401204SKevin Cernekee error: 1822cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 1823cd401204SKevin Cernekee return ret; 1824cd401204SKevin Cernekee } 1825cd401204SKevin Cernekee 1826cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 1827cd401204SKevin Cernekee { 1828cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1829cd401204SKevin Cernekee int ret = 0; 1830cd401204SKevin Cernekee unsigned char param[4]; 1831cd401204SKevin Cernekee 1832cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 1833cd401204SKevin Cernekee return -EIO; 183425bded7cSSeth Forshee 183525bded7cSSeth Forshee /* 183625bded7cSSeth Forshee * E7 report for the trackstick 183725bded7cSSeth Forshee * 183825bded7cSSeth Forshee * There have been reports of failures to seem to trace back 183925bded7cSSeth Forshee * to the above trackstick check failing. When these occur 184025bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 184125bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 184225bded7cSSeth Forshee * all. 184325bded7cSSeth Forshee */ 1844cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 1845a09221e8SDmitry Torokhov psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); 1846cd401204SKevin Cernekee ret = -ENODEV; 184725bded7cSSeth Forshee } else { 184839fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 184925bded7cSSeth Forshee 185025bded7cSSeth Forshee /* 185125bded7cSSeth Forshee * Not sure what this does, but it is absolutely 185225bded7cSSeth Forshee * essential. Without it, the touchpad does not 185325bded7cSSeth Forshee * work at all and the trackstick just emits normal 185425bded7cSSeth Forshee * PS/2 packets. 185525bded7cSSeth Forshee */ 185625bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 185725bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 185825bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 185925bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x9) || 186025bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x4)) { 186125bded7cSSeth Forshee psmouse_err(psmouse, 186225bded7cSSeth Forshee "Error sending magic E6 sequence\n"); 1863cd401204SKevin Cernekee ret = -EIO; 186425bded7cSSeth Forshee goto error; 186525bded7cSSeth Forshee } 186625bded7cSSeth Forshee 1867cd401204SKevin Cernekee /* 1868cd401204SKevin Cernekee * This ensures the trackstick packets are in the format 1869cd401204SKevin Cernekee * supported by this driver. If bit 1 isn't set the packet 1870cd401204SKevin Cernekee * format is different. 1871cd401204SKevin Cernekee */ 1872d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1873cd401204SKevin Cernekee alps_command_mode_write_reg(psmouse, 1874cd401204SKevin Cernekee reg_base + 0x08, 0x82) || 1875cd401204SKevin Cernekee alps_exit_command_mode(psmouse)) 1876cd401204SKevin Cernekee ret = -EIO; 1877cd401204SKevin Cernekee } 1878cd401204SKevin Cernekee 1879cd401204SKevin Cernekee error: 1880cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 1881cd401204SKevin Cernekee ret = -EIO; 1882cd401204SKevin Cernekee 1883cd401204SKevin Cernekee return ret; 1884cd401204SKevin Cernekee } 1885cd401204SKevin Cernekee 1886cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 1887cd401204SKevin Cernekee { 1888cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1889cd401204SKevin Cernekee int reg_val; 1890cd401204SKevin Cernekee unsigned char param[4]; 1891cd401204SKevin Cernekee 1892cd401204SKevin Cernekee reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 1893cd401204SKevin Cernekee if (reg_val == -EIO) 1894cd401204SKevin Cernekee goto error; 189539fbe585SDmitry Torokhov 1896cd401204SKevin Cernekee if (reg_val == 0 && 1897cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 1898cd401204SKevin Cernekee goto error; 1899cd401204SKevin Cernekee 1900d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1901cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 190225bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 190325bded7cSSeth Forshee goto error; 190425bded7cSSeth Forshee } 190525bded7cSSeth Forshee 190625bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 190725bded7cSSeth Forshee if (reg_val == -1) 190825bded7cSSeth Forshee goto error; 190925bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 191025bded7cSSeth Forshee goto error; 191125bded7cSSeth Forshee 191225bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 191325bded7cSSeth Forshee if (reg_val == -1) 191425bded7cSSeth Forshee goto error; 191525bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 191625bded7cSSeth Forshee goto error; 191725bded7cSSeth Forshee 191825bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 191925bded7cSSeth Forshee goto error; 192025bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 192125bded7cSSeth Forshee goto error; 192225bded7cSSeth Forshee 192325bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 192425bded7cSSeth Forshee goto error; 192525bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 192625bded7cSSeth Forshee goto error; 192725bded7cSSeth Forshee 192825bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 192925bded7cSSeth Forshee goto error; 193025bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 193125bded7cSSeth Forshee goto error; 193225bded7cSSeth Forshee 193325bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 193425bded7cSSeth Forshee goto error; 193525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 193625bded7cSSeth Forshee goto error; 193725bded7cSSeth Forshee 193825bded7cSSeth Forshee alps_exit_command_mode(psmouse); 193925bded7cSSeth Forshee 194025bded7cSSeth Forshee /* Set rate and enable data reporting */ 194125bded7cSSeth Forshee param[0] = 0x64; 194225bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 194325bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 194425bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 194525bded7cSSeth Forshee return -1; 194625bded7cSSeth Forshee } 194725bded7cSSeth Forshee 194825bded7cSSeth Forshee return 0; 194925bded7cSSeth Forshee 195025bded7cSSeth Forshee error: 195125bded7cSSeth Forshee /* 195225bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 195325bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 195425bded7cSSeth Forshee * to be safe 195525bded7cSSeth Forshee */ 195625bded7cSSeth Forshee alps_exit_command_mode(psmouse); 195725bded7cSSeth Forshee return -1; 195825bded7cSSeth Forshee } 195925bded7cSSeth Forshee 1960f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 1961f3f33c67SHans de Goede { 1962f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 1963f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 1964f3f33c67SHans de Goede 1965f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 1966f3f33c67SHans de Goede if (reg < 0) 1967f3f33c67SHans de Goede return reg; 1968f3f33c67SHans de Goede 1969f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1970f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 1971f3f33c67SHans de Goede 1972f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 1973f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 1974f3f33c67SHans de Goede 1975f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 1976f3f33c67SHans de Goede if (reg < 0) 1977f3f33c67SHans de Goede return reg; 1978f3f33c67SHans de Goede 1979f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1980f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 1981f3f33c67SHans de Goede 1982f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 1983f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 1984f3f33c67SHans de Goede 1985f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 1986f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 1987f3f33c67SHans de Goede 1988f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 1989f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 1990f3f33c67SHans de Goede 1991f3f33c67SHans de Goede psmouse_dbg(psmouse, 1992f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 1993f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 1994f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 1995f3f33c67SHans de Goede 1996f3f33c67SHans de Goede return 0; 1997f3f33c67SHans de Goede } 1998f3f33c67SHans de Goede 19991302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 20001302bac3SKevin Cernekee { 2001cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 20021302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 20031302bac3SKevin Cernekee int reg_val, ret = -1; 20041302bac3SKevin Cernekee 2005cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 2006cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 2007cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 2008cd401204SKevin Cernekee if (reg_val == -EIO) 2009cd401204SKevin Cernekee goto error; 2010cd401204SKevin Cernekee } 2011cd401204SKevin Cernekee 2012d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 20131302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 20141302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 20151302bac3SKevin Cernekee goto error; 20161302bac3SKevin Cernekee 2017f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 2018f3f33c67SHans de Goede goto error; 2019f3f33c67SHans de Goede 20201302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 20211302bac3SKevin Cernekee if (reg_val == -1) 20221302bac3SKevin Cernekee goto error; 20231302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 20241302bac3SKevin Cernekee goto error; 20251302bac3SKevin Cernekee 20261302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 20271302bac3SKevin Cernekee goto error; 20281302bac3SKevin Cernekee 20291302bac3SKevin Cernekee /* enter absolute mode */ 20301302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 20311302bac3SKevin Cernekee if (reg_val == -1) 20321302bac3SKevin Cernekee goto error; 20331302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 20341302bac3SKevin Cernekee goto error; 20351302bac3SKevin Cernekee 20361302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 20371302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 20381302bac3SKevin Cernekee 20391302bac3SKevin Cernekee error: 20401302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 20411302bac3SKevin Cernekee return ret; 20421302bac3SKevin Cernekee } 20431302bac3SKevin Cernekee 204425bded7cSSeth Forshee /* Must be in command mode when calling this function */ 204525bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 204625bded7cSSeth Forshee { 204725bded7cSSeth Forshee int reg_val; 204825bded7cSSeth Forshee 204925bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 205025bded7cSSeth Forshee if (reg_val == -1) 205125bded7cSSeth Forshee return -1; 205225bded7cSSeth Forshee 205325bded7cSSeth Forshee reg_val |= 0x02; 205425bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 205525bded7cSSeth Forshee return -1; 205625bded7cSSeth Forshee 205725bded7cSSeth Forshee return 0; 205825bded7cSSeth Forshee } 205925bded7cSSeth Forshee 206025bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 206125bded7cSSeth Forshee { 206225bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 206325bded7cSSeth Forshee unsigned char param[4]; 206425bded7cSSeth Forshee 2065d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 206625bded7cSSeth Forshee goto error; 206725bded7cSSeth Forshee 206825bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 206925bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 207025bded7cSSeth Forshee goto error; 207125bded7cSSeth Forshee } 207225bded7cSSeth Forshee 207325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 207425bded7cSSeth Forshee goto error; 207525bded7cSSeth Forshee 207625bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 207725bded7cSSeth Forshee goto error; 207825bded7cSSeth Forshee 207925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 208025bded7cSSeth Forshee goto error; 208125bded7cSSeth Forshee 208225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 208325bded7cSSeth Forshee goto error; 208425bded7cSSeth Forshee 208525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 208625bded7cSSeth Forshee goto error; 208725bded7cSSeth Forshee 208825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 208925bded7cSSeth Forshee goto error; 209025bded7cSSeth Forshee 209125bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 209225bded7cSSeth Forshee goto error; 209325bded7cSSeth Forshee 209425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 209525bded7cSSeth Forshee goto error; 209625bded7cSSeth Forshee 209725bded7cSSeth Forshee alps_exit_command_mode(psmouse); 209825bded7cSSeth Forshee 209925bded7cSSeth Forshee /* 210025bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 210125bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 210225bded7cSSeth Forshee * just in a more compact format. 210325bded7cSSeth Forshee */ 210425bded7cSSeth Forshee param[0] = 0xc8; 210525bded7cSSeth Forshee param[1] = 0x64; 210625bded7cSSeth Forshee param[2] = 0x50; 210725bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 210825bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 210925bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 211025bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 211125bded7cSSeth Forshee return -1; 211225bded7cSSeth Forshee 211325bded7cSSeth Forshee /* Set rate and enable data reporting */ 211425bded7cSSeth Forshee param[0] = 0x64; 211525bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 211625bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 211725bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 211825bded7cSSeth Forshee return -1; 211925bded7cSSeth Forshee } 212025bded7cSSeth Forshee 212125bded7cSSeth Forshee return 0; 212225bded7cSSeth Forshee 212325bded7cSSeth Forshee error: 212425bded7cSSeth Forshee /* 212525bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 212625bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 212725bded7cSSeth Forshee * to be safe 212825bded7cSSeth Forshee */ 212925bded7cSSeth Forshee alps_exit_command_mode(psmouse); 213025bded7cSSeth Forshee return -1; 213125bded7cSSeth Forshee } 213225bded7cSSeth Forshee 2133ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2134ee65d4b3SYunkang Tang struct alps_data *priv) 2135ee65d4b3SYunkang Tang { 2136ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2137ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2138ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2139ee65d4b3SYunkang Tang 2140ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2141ee65d4b3SYunkang Tang return -1; 2142ee65d4b3SYunkang Tang 2143ee65d4b3SYunkang Tang param[0] = 0x0a; 2144ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2145ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2146ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2147ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2148ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2149ee65d4b3SYunkang Tang return -1; 2150ee65d4b3SYunkang Tang 2151ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2152ee65d4b3SYunkang Tang return -1; 2153ee65d4b3SYunkang Tang 2154ee65d4b3SYunkang Tang /* 2155ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2156ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2157ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2158ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2159ee65d4b3SYunkang Tang * 2160ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2161ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2162ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2163ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2164ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2165ee65d4b3SYunkang Tang */ 2166ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2167ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2168ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2169ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2170ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2171ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2172ee65d4b3SYunkang Tang 2173ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2174ee65d4b3SYunkang Tang return -1; 2175ee65d4b3SYunkang Tang 2176ee65d4b3SYunkang Tang return 0; 2177ee65d4b3SYunkang Tang } 2178ee65d4b3SYunkang Tang 217975af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 218075af9e56SDave Turvene { 218175af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 218275af9e56SDave Turvene unsigned char param[2]; 218375af9e56SDave Turvene 218475af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 218575af9e56SDave Turvene param[0] = 0x64; 218675af9e56SDave Turvene param[1] = 0x28; 218775af9e56SDave Turvene 218875af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 218975af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 219075af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 219175af9e56SDave Turvene return -1; 219275af9e56SDave Turvene 219375af9e56SDave Turvene return 0; 219475af9e56SDave Turvene } 219575af9e56SDave Turvene 21963808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 21973808843cSYunkang Tang { 21983808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 21993808843cSYunkang Tang int reg_val, ret = -1; 22003808843cSYunkang Tang 22013808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 22023808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 22033808843cSYunkang Tang goto error; 22043808843cSYunkang Tang 2205f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2206f3f33c67SHans de Goede goto error; 2207f3f33c67SHans de Goede 22083808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 22093808843cSYunkang Tang goto error; 22103808843cSYunkang Tang 22113808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 22123808843cSYunkang Tang if (reg_val == -1) 22133808843cSYunkang Tang goto error; 22143808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 22153808843cSYunkang Tang goto error; 22163808843cSYunkang Tang 22173808843cSYunkang Tang alps_exit_command_mode(psmouse); 22183808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 22193808843cSYunkang Tang 22203808843cSYunkang Tang error: 22213808843cSYunkang Tang alps_exit_command_mode(psmouse); 22223808843cSYunkang Tang return ret; 22233808843cSYunkang Tang } 22243808843cSYunkang Tang 22253296f71cSDmitry Torokhov static int alps_set_protocol(struct psmouse *psmouse, 22263296f71cSDmitry Torokhov struct alps_data *priv, 22273296f71cSDmitry Torokhov const struct alps_protocol_info *protocol) 222825bded7cSSeth Forshee { 22293296f71cSDmitry Torokhov psmouse->private = priv; 22303296f71cSDmitry Torokhov 22313296f71cSDmitry Torokhov setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 22323296f71cSDmitry Torokhov 22333296f71cSDmitry Torokhov priv->proto_version = protocol->version; 22343296f71cSDmitry Torokhov priv->byte0 = protocol->byte0; 22353296f71cSDmitry Torokhov priv->mask0 = protocol->mask0; 22363296f71cSDmitry Torokhov priv->flags = protocol->flags; 2237f673ceb1SKevin Cernekee 22387a9f73e7SKevin Cernekee priv->x_max = 2000; 22397a9f73e7SKevin Cernekee priv->y_max = 1400; 22407a9f73e7SKevin Cernekee priv->x_bits = 15; 22417a9f73e7SKevin Cernekee priv->y_bits = 11; 22427a9f73e7SKevin Cernekee 224399df65e7SKevin Cernekee switch (priv->proto_version) { 224425bded7cSSeth Forshee case ALPS_PROTO_V1: 224525bded7cSSeth Forshee case ALPS_PROTO_V2: 224624af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 224724af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 224824af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 224995f75e91SYunkang Tang priv->x_max = 1023; 225095f75e91SYunkang Tang priv->y_max = 767; 225125bded7cSSeth Forshee break; 2252fb2dd7a6SDmitry Torokhov 225325bded7cSSeth Forshee case ALPS_PROTO_V3: 225424af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 225524af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 225624af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 2257f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 225850e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 225950e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 226025bded7cSSeth Forshee break; 2261fb2dd7a6SDmitry Torokhov 2262fb2dd7a6SDmitry Torokhov case ALPS_PROTO_V3_RUSHMORE: 2263fb2dd7a6SDmitry Torokhov priv->hw_init = alps_hw_init_rushmore_v3; 2264fb2dd7a6SDmitry Torokhov priv->process_packet = alps_process_packet_v3; 2265fb2dd7a6SDmitry Torokhov priv->set_abs_params = alps_set_abs_params_mt; 2266fb2dd7a6SDmitry Torokhov priv->decode_fields = alps_decode_rushmore; 2267fb2dd7a6SDmitry Torokhov priv->nibble_commands = alps_v3_nibble_commands; 2268fb2dd7a6SDmitry Torokhov priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2269fb2dd7a6SDmitry Torokhov priv->x_bits = 16; 2270fb2dd7a6SDmitry Torokhov priv->y_bits = 12; 22713296f71cSDmitry Torokhov 22723296f71cSDmitry Torokhov if (alps_probe_trackstick_v3(psmouse, 22733296f71cSDmitry Torokhov ALPS_REG_BASE_RUSHMORE) < 0) 22743296f71cSDmitry Torokhov priv->flags &= ~ALPS_DUALPOINT; 22753296f71cSDmitry Torokhov 2276fb2dd7a6SDmitry Torokhov break; 2277fb2dd7a6SDmitry Torokhov 227825bded7cSSeth Forshee case ALPS_PROTO_V4: 227924af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 228024af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 228124af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 228250e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 228350e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 228425bded7cSSeth Forshee break; 22853296f71cSDmitry Torokhov 228675af9e56SDave Turvene case ALPS_PROTO_V5: 228775af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2288ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 228975af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 229075af9e56SDave Turvene priv->set_abs_params = alps_set_abs_params_mt; 229175af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 229275af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 229375af9e56SDave Turvene priv->x_bits = 23; 229475af9e56SDave Turvene priv->y_bits = 12; 2295c164c147SDmitry Torokhov 2296c164c147SDmitry Torokhov if (alps_dolphin_get_device_area(psmouse, priv)) 2297c164c147SDmitry Torokhov return -EIO; 2298c164c147SDmitry Torokhov 229975af9e56SDave Turvene break; 23003296f71cSDmitry Torokhov 230195f75e91SYunkang Tang case ALPS_PROTO_V6: 230295f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 230395f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 230495f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 230595f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 230695f75e91SYunkang Tang priv->x_max = 2047; 230795f75e91SYunkang Tang priv->y_max = 1535; 230895f75e91SYunkang Tang break; 23093296f71cSDmitry Torokhov 23103808843cSYunkang Tang case ALPS_PROTO_V7: 23113808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 23123808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 23133808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 23143808843cSYunkang Tang priv->set_abs_params = alps_set_abs_params_mt; 23153808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 23163808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2317c164c147SDmitry Torokhov priv->x_max = 0xfff; 2318c164c147SDmitry Torokhov priv->y_max = 0x7ff; 23193808843cSYunkang Tang 23203808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 23213808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 23223296f71cSDmitry Torokhov 23233808843cSYunkang Tang break; 232425bded7cSSeth Forshee } 23253296f71cSDmitry Torokhov 23263296f71cSDmitry Torokhov return 0; 232725bded7cSSeth Forshee } 232825bded7cSSeth Forshee 23293296f71cSDmitry Torokhov static const struct alps_protocol_info *alps_match_table(unsigned char *e7, 23303296f71cSDmitry Torokhov unsigned char *ec) 23312e992cc0SKevin Cernekee { 2332b5d6b851SKevin Cernekee const struct alps_model_info *model; 23332e992cc0SKevin Cernekee int i; 23342e992cc0SKevin Cernekee 2335b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2336b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2337b5d6b851SKevin Cernekee 2338b5d6b851SKevin Cernekee if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2339b5d6b851SKevin Cernekee (!model->command_mode_resp || 2340b5d6b851SKevin Cernekee model->command_mode_resp == ec[2])) { 2341b5d6b851SKevin Cernekee 23423296f71cSDmitry Torokhov return &model->protocol_info; 2343b5d6b851SKevin Cernekee } 2344b5d6b851SKevin Cernekee } 2345b5d6b851SKevin Cernekee 23463296f71cSDmitry Torokhov return NULL; 2347b5d6b851SKevin Cernekee } 2348b5d6b851SKevin Cernekee 2349b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2350b5d6b851SKevin Cernekee { 23513296f71cSDmitry Torokhov const struct alps_protocol_info *protocol; 2352b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2353a09221e8SDmitry Torokhov int error; 2354b5d6b851SKevin Cernekee 23552e992cc0SKevin Cernekee /* 23562e992cc0SKevin Cernekee * First try "E6 report". 23572e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 23582e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 23592e992cc0SKevin Cernekee * pressed. 23602e992cc0SKevin Cernekee */ 2361b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2362b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2363b5d6b851SKevin Cernekee return -EIO; 23642e992cc0SKevin Cernekee 2365b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2366b5d6b851SKevin Cernekee return -EINVAL; 23672e992cc0SKevin Cernekee 23682e992cc0SKevin Cernekee /* 2369b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2370b5d6b851SKevin Cernekee * most ALPS touchpads. 23712e992cc0SKevin Cernekee */ 2372b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2373b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2374b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2375b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2376b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2377b5d6b851SKevin Cernekee return -EIO; 23782e992cc0SKevin Cernekee 23793296f71cSDmitry Torokhov protocol = alps_match_table(e7, ec); 23803296f71cSDmitry Torokhov if (!protocol) { 23813296f71cSDmitry Torokhov if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 23823296f71cSDmitry Torokhov ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 23833296f71cSDmitry Torokhov protocol = &alps_v5_protocol_data; 23843296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && 23853296f71cSDmitry Torokhov ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 23863296f71cSDmitry Torokhov protocol = &alps_v7_protocol_data; 23873296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x08) { 23883296f71cSDmitry Torokhov protocol = &alps_v3_rushmore_data; 23893296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x07 && 23903296f71cSDmitry Torokhov ec[2] >= 0x90 && ec[2] <= 0x9d) { 23913296f71cSDmitry Torokhov protocol = &alps_v3_protocol_data; 23923296f71cSDmitry Torokhov } else { 23933296f71cSDmitry Torokhov psmouse_dbg(psmouse, 23943296f71cSDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 23953296f71cSDmitry Torokhov return -EINVAL; 23963296f71cSDmitry Torokhov } 23973296f71cSDmitry Torokhov } 23983296f71cSDmitry Torokhov 2399a09221e8SDmitry Torokhov if (priv) { 2400c0cd17f6SHans de Goede /* Save the Firmware version */ 2401c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2402a09221e8SDmitry Torokhov error = alps_set_protocol(psmouse, priv, protocol); 2403a09221e8SDmitry Torokhov if (error) 2404a09221e8SDmitry Torokhov return error; 2405a09221e8SDmitry Torokhov } 2406c0cd17f6SHans de Goede 2407a09221e8SDmitry Torokhov return 0; 24082e992cc0SKevin Cernekee } 24092e992cc0SKevin Cernekee 24101e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 24111e0c5b12SDmitry Torokhov { 2412b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 241371bb21b6SMaxim Levitsky 24141e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 24151e0c5b12SDmitry Torokhov 2416b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 24171e0c5b12SDmitry Torokhov return -1; 24181e0c5b12SDmitry Torokhov 241924af5cb9SKevin Cernekee return priv->hw_init(psmouse); 24201da177e4SLinus Torvalds } 24211da177e4SLinus Torvalds 24221da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 24231da177e4SLinus Torvalds { 24241da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 24252e5b636bSDmitry Torokhov 24261da177e4SLinus Torvalds psmouse_reset(psmouse); 24271d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 242804aae283SPali Rohár if (priv->dev2) 24292e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 243004aae283SPali Rohár if (!IS_ERR_OR_NULL(priv->dev3)) 243104aae283SPali Rohár input_unregister_device(priv->dev3); 24321da177e4SLinus Torvalds kfree(priv); 24331da177e4SLinus Torvalds } 24341da177e4SLinus Torvalds 243524af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 243624af5cb9SKevin Cernekee struct input_dev *dev1) 243724af5cb9SKevin Cernekee { 243895f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 243995f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 244024af5cb9SKevin Cernekee } 244124af5cb9SKevin Cernekee 244224af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 244324af5cb9SKevin Cernekee struct input_dev *dev1) 244424af5cb9SKevin Cernekee { 24457a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 24467a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 244724af5cb9SKevin Cernekee 2448f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2449f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2450f3f33c67SHans de Goede 2451cdf333efSHans de Goede input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER | 2452cdf333efSHans de Goede INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT); 2453cdf333efSHans de Goede 245424af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 245524af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 24563808843cSYunkang Tang 24573808843cSYunkang Tang /* V7 is real multi-touch */ 24583808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7) 24593808843cSYunkang Tang clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit); 246024af5cb9SKevin Cernekee } 246124af5cb9SKevin Cernekee 24621da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 24631da177e4SLinus Torvalds { 2464a09221e8SDmitry Torokhov struct alps_data *priv = psmouse->private; 246504aae283SPali Rohár struct input_dev *dev1 = psmouse->dev; 2466a09221e8SDmitry Torokhov int error; 24671da177e4SLinus Torvalds 2468a09221e8SDmitry Torokhov error = priv->hw_init(psmouse); 2469a09221e8SDmitry Torokhov if (error) 24701da177e4SLinus Torvalds goto init_fail; 24711da177e4SLinus Torvalds 24727105d2eaSDmitry Torokhov /* 24737105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 24747105d2eaSDmitry Torokhov * is not a relative device. 24757105d2eaSDmitry Torokhov */ 24767105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 24777105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 24787105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 24797105d2eaSDmitry Torokhov 24807105d2eaSDmitry Torokhov /* 24817105d2eaSDmitry Torokhov * Now set up our capabilities. 24827105d2eaSDmitry Torokhov */ 24837b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 24847b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 24857b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 248671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 248771bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 24881da177e4SLinus Torvalds 24897b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 249025bded7cSSeth Forshee 249124af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 24923808843cSYunkang Tang /* No pressure on V7 */ 24933808843cSYunkang Tang if (priv->proto_version != ALPS_PROTO_V7) 24942e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 24951da177e4SLinus Torvalds 249699df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 24977b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 24987b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 24991da177e4SLinus Torvalds } 25001da177e4SLinus Torvalds 250199df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 25027b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 25037b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 25041da177e4SLinus Torvalds } 25051da177e4SLinus Torvalds 250699df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 250771bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 250871bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 250971bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 251071bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 25113808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 25123808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 25133808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 251471bb21b6SMaxim Levitsky } else { 251571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 251671bb21b6SMaxim Levitsky } 251771bb21b6SMaxim Levitsky 2518dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 251904aae283SPali Rohár struct input_dev *dev2; 252004aae283SPali Rohár 252104aae283SPali Rohár dev2 = input_allocate_device(); 252204aae283SPali Rohár if (!dev2) { 252304aae283SPali Rohár psmouse_err(psmouse, 252404aae283SPali Rohár "failed to allocate trackstick device\n"); 252504aae283SPali Rohár error = -ENOMEM; 252604aae283SPali Rohár goto init_fail; 252704aae283SPali Rohár } 252804aae283SPali Rohár 252904aae283SPali Rohár snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1", 253004aae283SPali Rohár psmouse->ps2dev.serio->phys); 253104aae283SPali Rohár dev2->phys = priv->phys2; 253204aae283SPali Rohár 2533dfba8600SPali Rohár /* 2534dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 2535dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 2536dfba8600SPali Rohár */ 2537dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 2538dfba8600SPali Rohár 25392e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 25402e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 254104aae283SPali Rohár dev2->id.product = PSMOUSE_ALPS; 254204aae283SPali Rohár dev2->id.version = priv->proto_version; 25431db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 25441da177e4SLinus Torvalds 254504aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_X); 254604aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_Y); 254704aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_LEFT); 254804aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_RIGHT); 254904aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_MIDDLE); 25501da177e4SLinus Torvalds 255101d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 25527611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 25537611392fSHans de Goede 255404aae283SPali Rohár error = input_register_device(dev2); 255504aae283SPali Rohár if (error) { 255604aae283SPali Rohár psmouse_err(psmouse, 255704aae283SPali Rohár "failed to register trackstick device: %d\n", 255804aae283SPali Rohár error); 255904aae283SPali Rohár input_free_device(dev2); 2560f42649e8SDmitry Torokhov goto init_fail; 256104aae283SPali Rohár } 256204aae283SPali Rohár 256304aae283SPali Rohár priv->dev2 = dev2; 256404aae283SPali Rohár } 256504aae283SPali Rohár 256604aae283SPali Rohár priv->psmouse = psmouse; 256704aae283SPali Rohár 256804aae283SPali Rohár INIT_DELAYED_WORK(&priv->dev3_register_work, 256904aae283SPali Rohár alps_register_bare_ps2_mouse); 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 2572f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 25731da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 25741da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 257599df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 25761da177e4SLinus Torvalds 2577f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2578f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 2579f0d5c6f4SDmitry Torokhov 25809d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 25819d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 25829d720b34SPali Rohár 25831da177e4SLinus Torvalds return 0; 25841da177e4SLinus Torvalds 25851da177e4SLinus Torvalds init_fail: 2586f42649e8SDmitry Torokhov psmouse_reset(psmouse); 2587a09221e8SDmitry Torokhov /* 2588a09221e8SDmitry Torokhov * Even though we did not allocate psmouse->private we do free 2589a09221e8SDmitry Torokhov * it here. 2590a09221e8SDmitry Torokhov */ 2591a09221e8SDmitry Torokhov kfree(psmouse->private); 25921e0c5b12SDmitry Torokhov psmouse->private = NULL; 2593a09221e8SDmitry Torokhov return error; 25941da177e4SLinus Torvalds } 25951da177e4SLinus Torvalds 2596b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 25971da177e4SLinus Torvalds { 2598a09221e8SDmitry Torokhov struct alps_data *priv; 2599a09221e8SDmitry Torokhov int error; 26001da177e4SLinus Torvalds 2601a09221e8SDmitry Torokhov error = alps_identify(psmouse, NULL); 2602a09221e8SDmitry Torokhov if (error) 2603a09221e8SDmitry Torokhov return error; 2604a09221e8SDmitry Torokhov 2605a09221e8SDmitry Torokhov /* 2606a09221e8SDmitry Torokhov * Reset the device to make sure it is fully operational: 2607a09221e8SDmitry Torokhov * on some laptops, like certain Dell Latitudes, we may 2608a09221e8SDmitry Torokhov * fail to properly detect presence of trackstick if device 2609a09221e8SDmitry Torokhov * has not been reset. 2610a09221e8SDmitry Torokhov */ 2611a09221e8SDmitry Torokhov psmouse_reset(psmouse); 2612a09221e8SDmitry Torokhov 2613a09221e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 2614a09221e8SDmitry Torokhov if (!priv) 2615a09221e8SDmitry Torokhov return -ENOMEM; 2616a09221e8SDmitry Torokhov 2617a09221e8SDmitry Torokhov error = alps_identify(psmouse, priv); 261893050db2SDmitry Torokhov if (error) { 261993050db2SDmitry Torokhov kfree(priv); 2620a09221e8SDmitry Torokhov return error; 262193050db2SDmitry Torokhov } 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds if (set_properties) { 26241da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 2625a09221e8SDmitry Torokhov psmouse->name = priv->flags & ALPS_DUALPOINT ? 2626968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 2627a09221e8SDmitry Torokhov psmouse->model = priv->proto_version; 2628a09221e8SDmitry Torokhov } else { 2629a09221e8SDmitry Torokhov /* 2630a09221e8SDmitry Torokhov * Destroy alps_data structure we allocated earlier since 2631a09221e8SDmitry Torokhov * this was just a "trial run". Otherwise we'll keep it 2632a09221e8SDmitry Torokhov * to be used by alps_init() which has to be called if 2633a09221e8SDmitry Torokhov * we succeed and set_properties is true. 2634a09221e8SDmitry Torokhov */ 2635a09221e8SDmitry Torokhov kfree(priv); 2636a09221e8SDmitry Torokhov psmouse->private = NULL; 26371da177e4SLinus Torvalds } 2638a09221e8SDmitry Torokhov 26391da177e4SLinus Torvalds return 0; 26401da177e4SLinus Torvalds } 26411da177e4SLinus Torvalds 2642