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 */ 10240e8f53bSHans de Goede #define ALPS_IS_RUSHMORE 0x100 /* device is a rushmore */ 1033808843cSYunkang Tang #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ 1041da177e4SLinus Torvalds 105e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 10625bded7cSSeth Forshee { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ 10725bded7cSSeth Forshee { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ 10825bded7cSSeth Forshee { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 10925bded7cSSeth Forshee { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 11025bded7cSSeth Forshee { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ 11125bded7cSSeth Forshee { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 11225bded7cSSeth Forshee { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 11325bded7cSSeth Forshee { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ 11425bded7cSSeth Forshee { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 11525bded7cSSeth Forshee { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ 11625bded7cSSeth Forshee { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 11725bded7cSSeth Forshee { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ 11825bded7cSSeth Forshee { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ 11925bded7cSSeth Forshee { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 12025bded7cSSeth Forshee { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ 12125bded7cSSeth Forshee { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 12225bded7cSSeth Forshee { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 12325bded7cSSeth Forshee { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 1241d9f2626SSebastian Kapfer /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 12525bded7cSSeth Forshee { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, 1261d9f2626SSebastian Kapfer ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, 12795f75e91SYunkang Tang { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT }, /* Dell XT2 */ 12825bded7cSSeth Forshee { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ 12925bded7cSSeth Forshee { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, 130eb8bff85SThomas Bächler ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ 13125bded7cSSeth Forshee { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, 1321da177e4SLinus Torvalds }; 1331da177e4SLinus Torvalds 13424af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 13524af5cb9SKevin Cernekee struct input_dev *dev1); 13624af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 13724af5cb9SKevin Cernekee struct input_dev *dev1); 13824af5cb9SKevin Cernekee 1391da177e4SLinus Torvalds /* 1401da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 1411da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 1421da177e4SLinus Torvalds * isn't valid per PS/2 spec. 1431da177e4SLinus Torvalds */ 1441da177e4SLinus Torvalds 145d4b347b2SSeth Forshee /* Packet formats are described in Documentation/input/alps.txt */ 1461da177e4SLinus Torvalds 14799df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 1481d9f2626SSebastian Kapfer unsigned char data) 1491d9f2626SSebastian Kapfer { 15099df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 1511d9f2626SSebastian Kapfer } 1521d9f2626SSebastian Kapfer 1531d9f2626SSebastian Kapfer static void alps_report_buttons(struct psmouse *psmouse, 1541d9f2626SSebastian Kapfer struct input_dev *dev1, struct input_dev *dev2, 1551d9f2626SSebastian Kapfer int left, int right, int middle) 1561d9f2626SSebastian Kapfer { 1571d9f2626SSebastian Kapfer struct input_dev *dev; 1581d9f2626SSebastian Kapfer 1591d9f2626SSebastian Kapfer /* 1601d9f2626SSebastian Kapfer * If shared button has already been reported on the 1611d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 1621d9f2626SSebastian Kapfer * sent through that device. 1631d9f2626SSebastian Kapfer */ 1641d9f2626SSebastian Kapfer dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; 1651d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 1661d9f2626SSebastian Kapfer 1671d9f2626SSebastian Kapfer dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; 1681d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 1691d9f2626SSebastian Kapfer 1701d9f2626SSebastian Kapfer dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; 1711d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 1721d9f2626SSebastian Kapfer 1731d9f2626SSebastian Kapfer /* 1741d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 1751d9f2626SSebastian Kapfer * device later once we report the rest of the events. 1761d9f2626SSebastian Kapfer */ 1771d9f2626SSebastian Kapfer input_sync(dev2); 1781d9f2626SSebastian Kapfer } 1791d9f2626SSebastian Kapfer 18025bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 1811da177e4SLinus Torvalds { 1821da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1831da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 1842e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 1852e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 1861da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 187c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 1881da177e4SLinus Torvalds 18999df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 190d2f4012fSYotam Medini left = packet[2] & 0x10; 191d2f4012fSYotam Medini right = packet[2] & 0x08; 1921da177e4SLinus Torvalds middle = 0; 1931da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 1941da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 1951da177e4SLinus Torvalds z = packet[5]; 1961da177e4SLinus Torvalds } else { 1971da177e4SLinus Torvalds left = packet[3] & 1; 1981da177e4SLinus Torvalds right = packet[3] & 2; 1991da177e4SLinus Torvalds middle = packet[3] & 4; 2001da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2011da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2021da177e4SLinus Torvalds z = packet[5]; 2031da177e4SLinus Torvalds } 2041da177e4SLinus Torvalds 20599df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2063c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2073c00bb96SLaszlo Kajan forward = packet[2] & 4; 208c30b4c10SIvan Casado Ruiz } 209c30b4c10SIvan Casado Ruiz 21099df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 211c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 212c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 213c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 214c30b4c10SIvan Casado Ruiz forward = back = 0; 215c30b4c10SIvan Casado Ruiz } 216c30b4c10SIvan Casado Ruiz 2171da177e4SLinus Torvalds ges = packet[2] & 1; 2181da177e4SLinus Torvalds fin = packet[2] & 2; 2191da177e4SLinus Torvalds 22099df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2211da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2221da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 223d7ed5d88SUlrich Dangel 2241d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev2, dev, left, right, middle); 225d7ed5d88SUlrich Dangel 2261da177e4SLinus Torvalds input_sync(dev2); 2271da177e4SLinus Torvalds return; 2281da177e4SLinus Torvalds } 2291da177e4SLinus Torvalds 2301d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev, dev2, left, right, middle); 231d7ed5d88SUlrich Dangel 2321da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 23371bb21b6SMaxim Levitsky if (ges && !fin) 23471bb21b6SMaxim Levitsky z = 40; 2351da177e4SLinus Torvalds 2361da177e4SLinus Torvalds /* 2371da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 2381da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 2391da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 2401da177e4SLinus Torvalds */ 2411da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 2421da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2431da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2441da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 2451da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 2461da177e4SLinus Torvalds input_sync(dev); 2471da177e4SLinus Torvalds } 2481da177e4SLinus Torvalds priv->prev_fin = fin; 2491da177e4SLinus Torvalds 25071bb21b6SMaxim Levitsky if (z > 30) 25171bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 25271bb21b6SMaxim Levitsky if (z < 25) 25371bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds if (z > 0) { 2561da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 2571da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 2581da177e4SLinus Torvalds } 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 2611da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 2621da177e4SLinus Torvalds 26399df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) 264e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 2651da177e4SLinus Torvalds 26699df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 267c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 268c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 2691da177e4SLinus Torvalds } 2701da177e4SLinus Torvalds 27199df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 27271bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 27371bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 27471bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 27571bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 27671bb21b6SMaxim Levitsky } 27771bb21b6SMaxim Levitsky 2781da177e4SLinus Torvalds input_sync(dev); 2791da177e4SLinus Torvalds } 2801da177e4SLinus Torvalds 28101ce661fSSeth Forshee /* 282ee65d4b3SYunkang Tang * Process bitmap data for V5 protocols. Return value is null. 283ee65d4b3SYunkang Tang * 284ee65d4b3SYunkang Tang * The bitmaps don't have enough data to track fingers, so this function 285ee65d4b3SYunkang Tang * only generates points representing a bounding box of at most two contacts. 28602d04254SHans de Goede * These two points are returned in fields->mt. 287ee65d4b3SYunkang Tang */ 288ee65d4b3SYunkang Tang static void alps_process_bitmap_dolphin(struct alps_data *priv, 28902d04254SHans de Goede struct alps_fields *fields) 290ee65d4b3SYunkang Tang { 291ee65d4b3SYunkang Tang int box_middle_x, box_middle_y; 292ee65d4b3SYunkang Tang unsigned int x_map, y_map; 293ee65d4b3SYunkang Tang unsigned char start_bit, end_bit; 294ee65d4b3SYunkang Tang unsigned char x_msb, x_lsb, y_msb, y_lsb; 295ee65d4b3SYunkang Tang 296ee65d4b3SYunkang Tang x_map = fields->x_map; 297ee65d4b3SYunkang Tang y_map = fields->y_map; 298ee65d4b3SYunkang Tang 299ee65d4b3SYunkang Tang if (!x_map || !y_map) 300ee65d4b3SYunkang Tang return; 301ee65d4b3SYunkang Tang 302ee65d4b3SYunkang Tang /* Get Most-significant and Least-significant bit */ 303ee65d4b3SYunkang Tang x_msb = fls(x_map); 304ee65d4b3SYunkang Tang x_lsb = ffs(x_map); 305ee65d4b3SYunkang Tang y_msb = fls(y_map); 306ee65d4b3SYunkang Tang y_lsb = ffs(y_map); 307ee65d4b3SYunkang Tang 308ee65d4b3SYunkang Tang /* Most-significant bit should never exceed max sensor line number */ 309ee65d4b3SYunkang Tang if (x_msb > priv->x_bits || y_msb > priv->y_bits) 310ee65d4b3SYunkang Tang return; 311ee65d4b3SYunkang Tang 312ee65d4b3SYunkang Tang if (fields->fingers > 1) { 313ee65d4b3SYunkang Tang start_bit = priv->x_bits - x_msb; 314ee65d4b3SYunkang Tang end_bit = priv->x_bits - x_lsb; 315ee65d4b3SYunkang Tang box_middle_x = (priv->x_max * (start_bit + end_bit)) / 316ee65d4b3SYunkang Tang (2 * (priv->x_bits - 1)); 317ee65d4b3SYunkang Tang 318ee65d4b3SYunkang Tang start_bit = y_lsb - 1; 319ee65d4b3SYunkang Tang end_bit = y_msb - 1; 320ee65d4b3SYunkang Tang box_middle_y = (priv->y_max * (start_bit + end_bit)) / 321ee65d4b3SYunkang Tang (2 * (priv->y_bits - 1)); 32202d04254SHans de Goede fields->mt[0] = fields->st; 32302d04254SHans de Goede fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x; 32402d04254SHans de Goede fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y; 325ee65d4b3SYunkang Tang } 326ee65d4b3SYunkang Tang } 327ee65d4b3SYunkang Tang 328036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 329036e6c7bSHans de Goede struct alps_bitmap_point *low, 330036e6c7bSHans de Goede struct alps_bitmap_point *high, 331036e6c7bSHans de Goede int *fingers) 332036e6c7bSHans de Goede { 333036e6c7bSHans de Goede struct alps_bitmap_point *point; 334036e6c7bSHans de Goede int i, bit, prev_bit = 0; 335036e6c7bSHans de Goede 336036e6c7bSHans de Goede point = low; 337036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 338036e6c7bSHans de Goede bit = map & 1; 339036e6c7bSHans de Goede if (bit) { 340036e6c7bSHans de Goede if (!prev_bit) { 341036e6c7bSHans de Goede point->start_bit = i; 342105affbfSHans de Goede point->num_bits = 0; 343036e6c7bSHans de Goede (*fingers)++; 344036e6c7bSHans de Goede } 345036e6c7bSHans de Goede point->num_bits++; 346036e6c7bSHans de Goede } else { 347036e6c7bSHans de Goede if (prev_bit) 348036e6c7bSHans de Goede point = high; 349036e6c7bSHans de Goede } 350036e6c7bSHans de Goede prev_bit = bit; 351036e6c7bSHans de Goede } 352036e6c7bSHans de Goede } 353036e6c7bSHans de Goede 354ee65d4b3SYunkang Tang /* 35501ce661fSSeth Forshee * Process bitmap data from v3 and v4 protocols. Returns the number of 35601ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 35701ce661fSSeth Forshee * bitmaps was empty. 35801ce661fSSeth Forshee * 35901ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 36001ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 36102d04254SHans de Goede * These points are returned in fields->mt when the return value 36201ce661fSSeth Forshee * is greater than 0. 36301ce661fSSeth Forshee */ 3647a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 36502d04254SHans de Goede struct alps_fields *fields) 36601ce661fSSeth Forshee { 367036e6c7bSHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers; 36801ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 36901ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 37001ce661fSSeth Forshee 37102d04254SHans de Goede if (!fields->x_map || !fields->y_map) 37201ce661fSSeth Forshee return 0; 37301ce661fSSeth Forshee 37402d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 37502d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 37601ce661fSSeth Forshee 37701ce661fSSeth Forshee /* 37801ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 37901ce661fSSeth Forshee * on either axis as the finger count. 38001ce661fSSeth Forshee */ 38101ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 38201ce661fSSeth Forshee 38301ce661fSSeth Forshee /* 38420bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 38520bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 38601ce661fSSeth Forshee */ 38701ce661fSSeth Forshee if (fingers_x == 1) { 38828835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 38901ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 39001ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 39101ce661fSSeth Forshee x_high.num_bits = max(i, 1); 39220bea68bSHans de Goede } 39320bea68bSHans de Goede if (fingers_y == 1) { 39428835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 39501ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 39601ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 39701ce661fSSeth Forshee y_high.num_bits = max(i, 1); 39801ce661fSSeth Forshee } 39901ce661fSSeth Forshee 40002d04254SHans de Goede fields->mt[0].x = 40102d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4027a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 40302d04254SHans de Goede fields->mt[0].y = 40402d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4057a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 40601ce661fSSeth Forshee 40702d04254SHans de Goede fields->mt[1].x = 40802d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4097a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 41002d04254SHans de Goede fields->mt[1].y = 41102d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4127a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 41301ce661fSSeth Forshee 41440e8f53bSHans de Goede /* y-bitmap order is reversed, except on rushmore */ 41540e8f53bSHans de Goede if (!(priv->flags & ALPS_IS_RUSHMORE)) { 41602d04254SHans de Goede fields->mt[0].y = priv->y_max - fields->mt[0].y; 41702d04254SHans de Goede fields->mt[1].y = priv->y_max - fields->mt[1].y; 41840e8f53bSHans de Goede } 41940e8f53bSHans de Goede 42001ce661fSSeth Forshee return fingers; 42101ce661fSSeth Forshee } 42201ce661fSSeth Forshee 423cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 42401ce661fSSeth Forshee { 42501ce661fSSeth Forshee input_mt_slot(dev, slot); 426cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 42701ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 42801ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 42901ce661fSSeth Forshee } 43001ce661fSSeth Forshee 431cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 43201ce661fSSeth Forshee { 43302d04254SHans de Goede struct alps_data *priv = psmouse->private; 43402d04254SHans de Goede struct input_dev *dev = psmouse->dev; 43502d04254SHans de Goede struct alps_fields *f = &priv->f; 436cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 43702d04254SHans de Goede 438448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 439cdf333efSHans de Goede for (i = 0; i < n; i++) 440cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 441cdf333efSHans de Goede 442cdf333efSHans de Goede input_mt_sync_frame(dev); 44301ce661fSSeth Forshee } 44401ce661fSSeth Forshee 44568c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 44668c21870SHans de Goede { 44768c21870SHans de Goede struct alps_data *priv = psmouse->private; 44868c21870SHans de Goede struct input_dev *dev = psmouse->dev; 44968c21870SHans de Goede struct alps_fields *f = &priv->f; 45068c21870SHans de Goede 45168c21870SHans de Goede /* Use st data when we don't have mt data */ 45268c21870SHans de Goede if (fingers < 2) { 45368c21870SHans de Goede f->mt[0].x = f->st.x; 45468c21870SHans de Goede f->mt[0].y = f->st.y; 45568c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 45668c21870SHans de Goede } 45768c21870SHans de Goede 45899d9996cSHans de Goede alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2); 45968c21870SHans de Goede 46068c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 46168c21870SHans de Goede 46268c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 46368c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 46468c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 46568c21870SHans de Goede 46668c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 46768c21870SHans de Goede 46868c21870SHans de Goede input_sync(dev); 46968c21870SHans de Goede } 47068c21870SHans de Goede 47125bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 47225bded7cSSeth Forshee { 47325bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 47425bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 47525bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 47625bded7cSSeth Forshee int x, y, z, left, right, middle; 47725bded7cSSeth Forshee 47834412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 47934412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 48034412ba2SPali Rohár psmouse_warn(psmouse, 48134412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 48234412ba2SPali Rohár return; 48334412ba2SPali Rohár } 48434412ba2SPali Rohár 48525bded7cSSeth Forshee /* Sanity check packet */ 48625bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 48725bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 48825bded7cSSeth Forshee return; 48925bded7cSSeth Forshee } 49025bded7cSSeth Forshee 49125bded7cSSeth Forshee /* 49225bded7cSSeth Forshee * There's a special packet that seems to indicate the end 49325bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 49425bded7cSSeth Forshee */ 49525bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 49625bded7cSSeth Forshee return; 49725bded7cSSeth Forshee 49825bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 49925bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 50025bded7cSSeth Forshee z = (packet[4] & 0x7c) >> 2; 50125bded7cSSeth Forshee 50225bded7cSSeth Forshee /* 50325bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 50425bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 50525bded7cSSeth Forshee * to compensate. 50625bded7cSSeth Forshee */ 50725bded7cSSeth Forshee x /= 8; 50825bded7cSSeth Forshee y /= 8; 50925bded7cSSeth Forshee 51025bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 51125bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 51225bded7cSSeth Forshee 51325bded7cSSeth Forshee /* 51425bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 51525bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 51625bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 51725bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 51825bded7cSSeth Forshee * packet. 51925bded7cSSeth Forshee */ 52025bded7cSSeth Forshee left = packet[3] & 0x01; 52125bded7cSSeth Forshee right = packet[3] & 0x02; 52225bded7cSSeth Forshee middle = packet[3] & 0x04; 52325bded7cSSeth Forshee 52425bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 52525bded7cSSeth Forshee (left || right || middle)) 52625bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 52725bded7cSSeth Forshee 52825bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 52925bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 53025bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 53125bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 53225bded7cSSeth Forshee } 53325bded7cSSeth Forshee 53425bded7cSSeth Forshee input_sync(dev); 53525bded7cSSeth Forshee return; 53625bded7cSSeth Forshee } 53725bded7cSSeth Forshee 538f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 539f85e5001SKevin Cernekee { 540f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 541f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 542f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 543f85e5001SKevin Cernekee 544f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 545f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 546f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 547f85e5001SKevin Cernekee } 548f85e5001SKevin Cernekee 54938c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 550ee65d4b3SYunkang Tang struct psmouse *psmouse) 551f85e5001SKevin Cernekee { 552f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 553f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 554f85e5001SKevin Cernekee 555f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 556f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 557f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 558f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 559f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 560f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 561f85e5001SKevin Cernekee (p[4] & 0x01); 562f85e5001SKevin Cernekee 56302d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 564f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 56502d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 56602d04254SHans de Goede f->pressure = p[5] & 0x7f; 567f85e5001SKevin Cernekee 568f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 56938c11eaaSHans de Goede 57038c11eaaSHans de Goede return 0; 571f85e5001SKevin Cernekee } 572f85e5001SKevin Cernekee 57338c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 574ee65d4b3SYunkang Tang struct psmouse *psmouse) 5751302bac3SKevin Cernekee { 576ee65d4b3SYunkang Tang alps_decode_pinnacle(f, p, psmouse); 5771302bac3SKevin Cernekee 578f105e34aSYunkang Tang /* Rushmore's packet decode has a bit difference with Pinnacle's */ 579f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 580f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 5811302bac3SKevin Cernekee f->x_map |= (p[5] & 0x10) << 11; 5821302bac3SKevin Cernekee f->y_map |= (p[5] & 0x20) << 6; 58338c11eaaSHans de Goede 58438c11eaaSHans de Goede return 0; 5851302bac3SKevin Cernekee } 5861302bac3SKevin Cernekee 58738c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 588ee65d4b3SYunkang Tang struct psmouse *psmouse) 58975af9e56SDave Turvene { 590ee65d4b3SYunkang Tang u64 palm_data = 0; 591ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 592ee65d4b3SYunkang Tang 59375af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 59475af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 59575af9e56SDave Turvene 596ee65d4b3SYunkang Tang if (!f->is_mp) { 59702d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 59802d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 59902d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 60075af9e56SDave Turvene alps_decode_buttons_v3(f, p); 601ee65d4b3SYunkang Tang } else { 602ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 603ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 604ee65d4b3SYunkang Tang 605ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 606ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 607ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 608ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 609ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 610ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 611ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 612ee65d4b3SYunkang Tang 613ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 614ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 615ee65d4b3SYunkang Tang 616ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 617ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 618ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 619ee65d4b3SYunkang Tang } 62038c11eaaSHans de Goede 62138c11eaaSHans de Goede return 0; 62275af9e56SDave Turvene } 62375af9e56SDave Turvene 624ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 62525bded7cSSeth Forshee { 62625bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 62725bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 62825bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 62902d04254SHans de Goede struct alps_fields *f = &priv->f; 63002d04254SHans de Goede int fingers = 0; 631f85e5001SKevin Cernekee 63202d04254SHans de Goede memset(f, 0, sizeof(*f)); 63302d04254SHans de Goede 63402d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 63525bded7cSSeth Forshee 63625bded7cSSeth Forshee /* 63701ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 63801ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 63901ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 64001ce661fSSeth Forshee * bit 6 of packet[4] set. 64125bded7cSSeth Forshee */ 64225bded7cSSeth Forshee if (priv->multi_packet) { 64325bded7cSSeth Forshee /* 64425bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 64525bded7cSSeth Forshee * sequence, but then what follows is another position 64625bded7cSSeth Forshee * packet. Check for this, and when it happens process the 64725bded7cSSeth Forshee * position packet as usual. 64825bded7cSSeth Forshee */ 64902d04254SHans de Goede if (f->is_mp) { 65002d04254SHans de Goede fingers = f->fingers; 651ee65d4b3SYunkang Tang if (priv->proto_version == ALPS_PROTO_V3) { 65202d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 65320bea68bSHans de Goede fingers = 0; /* Use st data */ 65401ce661fSSeth Forshee 65501ce661fSSeth Forshee /* Now process position packet */ 65602d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 657ee65d4b3SYunkang Tang psmouse); 658ee65d4b3SYunkang Tang } else { 659ee65d4b3SYunkang Tang /* 660ee65d4b3SYunkang Tang * Because Dolphin uses position packet's 661ee65d4b3SYunkang Tang * coordinate data as Pt1 and uses it to 662ee65d4b3SYunkang Tang * calculate Pt2, so we need to do position 663ee65d4b3SYunkang Tang * packet decode first. 664ee65d4b3SYunkang Tang */ 66502d04254SHans de Goede priv->decode_fields(f, priv->multi_data, 666ee65d4b3SYunkang Tang psmouse); 667ee65d4b3SYunkang Tang 668ee65d4b3SYunkang Tang /* 669ee65d4b3SYunkang Tang * Since Dolphin's finger number is reliable, 670ee65d4b3SYunkang Tang * there is no need to compare with bmap_fn. 671ee65d4b3SYunkang Tang */ 67202d04254SHans de Goede alps_process_bitmap_dolphin(priv, f); 673ee65d4b3SYunkang Tang } 67401ce661fSSeth Forshee } else { 67501ce661fSSeth Forshee priv->multi_packet = 0; 67625bded7cSSeth Forshee } 67725bded7cSSeth Forshee } 67825bded7cSSeth Forshee 67901ce661fSSeth Forshee /* 68001ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 68101ce661fSSeth Forshee * times it seems to be set is in situations where the data is 68201ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 68301ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 68401ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 68501ce661fSSeth Forshee * bit set. 68601ce661fSSeth Forshee */ 68702d04254SHans de Goede if (f->is_mp) 68801ce661fSSeth Forshee return; 68901ce661fSSeth Forshee 69002d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 69125bded7cSSeth Forshee priv->multi_packet = 1; 69201ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 69301ce661fSSeth Forshee return; 69401ce661fSSeth Forshee } 69501ce661fSSeth Forshee 69625bded7cSSeth Forshee priv->multi_packet = 0; 69725bded7cSSeth Forshee 69825bded7cSSeth Forshee /* 69925bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 70025bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 70125bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 70225bded7cSSeth Forshee * Ignore them. 70325bded7cSSeth Forshee */ 70402d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 70525bded7cSSeth Forshee return; 70625bded7cSSeth Forshee 70768c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 70825bded7cSSeth Forshee 70934412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 71034412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 71102d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 71202d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 71302d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 71425bded7cSSeth Forshee input_sync(dev2); 71525bded7cSSeth Forshee } 71625bded7cSSeth Forshee } 71725bded7cSSeth Forshee 71825bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 71925bded7cSSeth Forshee { 72025bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 72125bded7cSSeth Forshee 72225bded7cSSeth Forshee /* 72325bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 72425bded7cSSeth Forshee * touchpad data and one representing trackstick data. 72525bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 72625bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 72725bded7cSSeth Forshee * observed in the last byte of either of the other types 72825bded7cSSeth Forshee * of packets. 72925bded7cSSeth Forshee */ 73025bded7cSSeth Forshee if (packet[5] == 0x3f) { 73125bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 73225bded7cSSeth Forshee return; 73325bded7cSSeth Forshee } 73425bded7cSSeth Forshee 735ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 73625bded7cSSeth Forshee } 73725bded7cSSeth Forshee 73895f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 73995f75e91SYunkang Tang { 74095f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 74195f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 74295f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 74395f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 74495f75e91SYunkang Tang int x, y, z, left, right, middle; 74595f75e91SYunkang Tang 74695f75e91SYunkang Tang /* 74795f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 74895f75e91SYunkang Tang * or Trackpoint. 74995f75e91SYunkang Tang * Touchpad: 0 - 0x7E 75095f75e91SYunkang Tang * Trackpoint: 0x7F 75195f75e91SYunkang Tang */ 75295f75e91SYunkang Tang if (packet[5] == 0x7F) { 75395f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 75434412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 75534412ba2SPali Rohár psmouse_warn(psmouse, 75634412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 75795f75e91SYunkang Tang return; 75834412ba2SPali Rohár } 75995f75e91SYunkang Tang 76095f75e91SYunkang Tang /* Trackpoint packet */ 76195f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 76295f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 76395f75e91SYunkang Tang z = packet[4]; 76495f75e91SYunkang Tang left = packet[3] & 0x01; 76595f75e91SYunkang Tang right = packet[3] & 0x02; 76695f75e91SYunkang Tang middle = packet[3] & 0x04; 76795f75e91SYunkang Tang 76895f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 76995f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 77095f75e91SYunkang Tang x = y = z = 0; 77195f75e91SYunkang Tang 77295f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 77395f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 77495f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 77595f75e91SYunkang Tang 77695f75e91SYunkang Tang input_report_key(dev2, BTN_LEFT, left); 77795f75e91SYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 77895f75e91SYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 77995f75e91SYunkang Tang 78095f75e91SYunkang Tang input_sync(dev2); 78195f75e91SYunkang Tang return; 78295f75e91SYunkang Tang } 78395f75e91SYunkang Tang 78495f75e91SYunkang Tang /* Touchpad packet */ 78595f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 78695f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 78795f75e91SYunkang Tang z = packet[5]; 78895f75e91SYunkang Tang left = packet[3] & 0x01; 78995f75e91SYunkang Tang right = packet[3] & 0x02; 79095f75e91SYunkang Tang 79195f75e91SYunkang Tang if (z > 30) 79295f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 79395f75e91SYunkang Tang if (z < 25) 79495f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 79595f75e91SYunkang Tang 79695f75e91SYunkang Tang if (z > 0) { 79795f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 79895f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 79995f75e91SYunkang Tang } 80095f75e91SYunkang Tang 80195f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 80295f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 80395f75e91SYunkang Tang 80495f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 80595f75e91SYunkang Tang input_report_key(dev, BTN_LEFT, left); 80695f75e91SYunkang Tang input_report_key(dev, BTN_RIGHT, right); 80795f75e91SYunkang Tang 80895f75e91SYunkang Tang input_sync(dev); 80995f75e91SYunkang Tang } 81095f75e91SYunkang Tang 81125bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 81225bded7cSSeth Forshee { 8133b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 81425bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 81502d04254SHans de Goede struct alps_fields *f = &priv->f; 81668c21870SHans de Goede int offset; 8173b7e09faSGeorge Pantalos 8183b7e09faSGeorge Pantalos /* 8193b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8203b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8213b7e09faSGeorge Pantalos * track our position in the bitmap packet. 8223b7e09faSGeorge Pantalos */ 8233b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 8243b7e09faSGeorge Pantalos /* sync, reset position */ 8253b7e09faSGeorge Pantalos priv->multi_packet = 0; 8263b7e09faSGeorge Pantalos } 8273b7e09faSGeorge Pantalos 8283b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 8293b7e09faSGeorge Pantalos return; 8303b7e09faSGeorge Pantalos 8313b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 8323b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 8333b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 8343b7e09faSGeorge Pantalos 8353b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 8363b7e09faSGeorge Pantalos priv->multi_packet = 0; 8373b7e09faSGeorge Pantalos 83802d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 8393b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 8403b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 8413b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 84202d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 8433b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 8443b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 8453b7e09faSGeorge Pantalos 84602d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 8473b7e09faSGeorge Pantalos } 84825bded7cSSeth Forshee 849b0cfb794SAndreas Bosch f->left = !!(packet[4] & 0x01); 850b0cfb794SAndreas Bosch f->right = !!(packet[4] & 0x02); 85125bded7cSSeth Forshee 85202d04254SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 85325bded7cSSeth Forshee ((packet[0] & 0x30) >> 4); 85402d04254SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 85502d04254SHans de Goede f->pressure = packet[5] & 0x7f; 85625bded7cSSeth Forshee 85768c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 85825bded7cSSeth Forshee } 85925bded7cSSeth Forshee 8603808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 8613808843cSYunkang Tang { 8623808843cSYunkang Tang switch (psmouse->pktcnt) { 8633808843cSYunkang Tang case 3: 8643808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 8653808843cSYunkang Tang case 4: 8663808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 8673808843cSYunkang Tang case 6: 8683808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 8693808843cSYunkang Tang } 8703808843cSYunkang Tang return true; 8713808843cSYunkang Tang } 8723808843cSYunkang Tang 8733808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 8743808843cSYunkang Tang { 8753808843cSYunkang Tang unsigned char packet_id; 8763808843cSYunkang Tang 8773808843cSYunkang Tang if (byte[4] & 0x40) 8783808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 8793808843cSYunkang Tang else if (byte[4] & 0x01) 8803808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 8813808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 8823808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 8833808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 8843808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 8853808843cSYunkang Tang else 8863808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 8873808843cSYunkang Tang 8883808843cSYunkang Tang return packet_id; 8893808843cSYunkang Tang } 8903808843cSYunkang Tang 8913808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 8923808843cSYunkang Tang unsigned char *pkt, 8933808843cSYunkang Tang unsigned char pkt_id) 8943808843cSYunkang Tang { 89527a560baSHans de Goede /* 89627a560baSHans de Goede * packet-fmt b7 b6 b5 b4 b3 b2 b1 b0 89727a560baSHans de Goede * Byte0 TWO & MULTI L 1 R M 1 Y0-2 Y0-1 Y0-0 89827a560baSHans de Goede * Byte0 NEW L 1 X1-5 1 1 Y0-2 Y0-1 Y0-0 89927a560baSHans de Goede * Byte1 Y0-10 Y0-9 Y0-8 Y0-7 Y0-6 Y0-5 Y0-4 Y0-3 90027a560baSHans de Goede * Byte2 X0-11 1 X0-10 X0-9 X0-8 X0-7 X0-6 X0-5 90127a560baSHans de Goede * Byte3 X1-11 1 X0-4 X0-3 1 X0-2 X0-1 X0-0 90227a560baSHans de Goede * Byte4 TWO X1-10 TWO X1-9 X1-8 X1-7 X1-6 X1-5 X1-4 90327a560baSHans de Goede * Byte4 MULTI X1-10 TWO X1-9 X1-8 X1-7 X1-6 Y1-5 1 90427a560baSHans de Goede * Byte4 NEW X1-10 TWO X1-9 X1-8 X1-7 X1-6 0 0 90527a560baSHans de Goede * Byte5 TWO & NEW Y1-10 0 Y1-9 Y1-8 Y1-7 Y1-6 Y1-5 Y1-4 90627a560baSHans de Goede * Byte5 MULTI Y1-10 0 Y1-9 Y1-8 Y1-7 Y1-6 F-1 F-0 90727a560baSHans de Goede * L: Left button 90827a560baSHans de Goede * R / M: Non-clickpads: Right / Middle button 90927a560baSHans de Goede * Clickpads: When > 2 fingers are down, and some fingers 91027a560baSHans de Goede * are in the button area, then the 2 coordinates reported 91127a560baSHans de Goede * are for fingers outside the button area and these report 91227a560baSHans de Goede * extra fingers being present in the right / left button 91327a560baSHans de Goede * area. Note these fingers are not added to the F field! 91427a560baSHans de Goede * so if a TWO packet is received and R = 1 then there are 91527a560baSHans de Goede * 3 fingers down, etc. 91627a560baSHans de Goede * TWO: 1: Two touches present, byte 0/4/5 are in TWO fmt 91727a560baSHans de Goede * 0: If byte 4 bit 0 is 1, then byte 0/4/5 are in MULTI fmt 91827a560baSHans de Goede * otherwise byte 0 bit 4 must be set and byte 0/4/5 are 91927a560baSHans de Goede * in NEW fmt 92027a560baSHans de Goede * F: Number of fingers - 3, 0 means 3 fingers, 1 means 4 ... 92127a560baSHans de Goede */ 92227a560baSHans de Goede 9233808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9243808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9253808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9263808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9273808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9283808843cSYunkang Tang 9293808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9303808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9313808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9323808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9333808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9343808843cSYunkang Tang 9353808843cSYunkang Tang switch (pkt_id) { 9363808843cSYunkang Tang case V7_PACKET_ID_TWO: 9373808843cSYunkang Tang mt[1].x &= ~0x000F; 9383808843cSYunkang Tang mt[1].y |= 0x000F; 9393808843cSYunkang Tang break; 9403808843cSYunkang Tang 9413808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9423808843cSYunkang Tang mt[1].x &= ~0x003F; 9433808843cSYunkang Tang mt[1].y &= ~0x0020; 9443808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 9453808843cSYunkang Tang mt[1].y |= 0x001F; 9463808843cSYunkang Tang break; 9473808843cSYunkang Tang 9483808843cSYunkang Tang case V7_PACKET_ID_NEW: 9493808843cSYunkang Tang mt[1].x &= ~0x003F; 9503808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 9513808843cSYunkang Tang mt[1].y |= 0x000F; 9523808843cSYunkang Tang break; 9533808843cSYunkang Tang } 9543808843cSYunkang Tang 9553808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 9563808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 9573808843cSYunkang Tang } 9583808843cSYunkang Tang 9593808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 9603808843cSYunkang Tang { 9617091c443SHans de Goede int i, fingers = 0; 9623808843cSYunkang Tang 9637091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 9647091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 9657091c443SHans de Goede fingers++; 9667091c443SHans de Goede } 9673808843cSYunkang Tang 9687091c443SHans de Goede return fingers; 9693808843cSYunkang Tang } 9703808843cSYunkang Tang 9713808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 9723808843cSYunkang Tang unsigned char *p, 9733808843cSYunkang Tang struct psmouse *psmouse) 9743808843cSYunkang Tang { 975d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 9763808843cSYunkang Tang unsigned char pkt_id; 9773808843cSYunkang Tang 9783808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 9793808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 9803808843cSYunkang Tang return 0; 9813808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 9823808843cSYunkang Tang return -1; 9838b238115SHans de Goede /* 9848b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 9858b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 9868b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 9878b238115SHans de Goede * us. 9888b238115SHans de Goede * 9898b238115SHans de Goede * NEW packets have 3 problems: 9908b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 9918b238115SHans de Goede * this can be worked around by preserving the old button state 9928b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 9938b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 9948b238115SHans de Goede * the old finger count as that may mismatch with the amount of 9958b238115SHans de Goede * touch coordinates we've available in the NEW packet 9968b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 9978b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 9988b238115SHans de Goede * non NEW packet comes in 9998b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 10008b238115SHans de Goede */ 10018b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 10028b238115SHans de Goede return 1; 10033808843cSYunkang Tang 10043808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 10053808843cSYunkang Tang 10063808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 10073808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 10088b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 10093808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 10103808843cSYunkang Tang 1011d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1012d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1013d27eb793SHans de Goede if (p[0] & 0x20) 1014d27eb793SHans de Goede f->fingers++; 1015d27eb793SHans de Goede if (p[0] & 0x10) 1016d27eb793SHans de Goede f->fingers++; 1017d27eb793SHans de Goede } else { 1018d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1019d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1020d27eb793SHans de Goede } 1021d27eb793SHans de Goede 10227091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10237091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10247091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10257091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10267091c443SHans de Goede f->mt[1].x = 0; 10277091c443SHans de Goede f->mt[1].y = 0; 10287091c443SHans de Goede } 10297091c443SHans de Goede 10303808843cSYunkang Tang return 0; 10313808843cSYunkang Tang } 10323808843cSYunkang Tang 10333808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10343808843cSYunkang Tang { 10353808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10363808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10373808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10383808843cSYunkang Tang int x, y, z, left, right, middle; 10393808843cSYunkang Tang 104034412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 104134412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 104234412ba2SPali Rohár psmouse_warn(psmouse, 104334412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 104434412ba2SPali Rohár return; 104534412ba2SPali Rohár } 104634412ba2SPali Rohár 10473808843cSYunkang Tang /* 10483808843cSYunkang Tang * b7 b6 b5 b4 b3 b2 b1 b0 10493808843cSYunkang Tang * Byte0 0 1 0 0 1 0 0 0 10503808843cSYunkang Tang * Byte1 1 1 * * 1 M R L 10513808843cSYunkang Tang * Byte2 X7 1 X5 X4 X3 X2 X1 X0 10523808843cSYunkang Tang * Byte3 Z6 1 Y6 X6 1 Y2 Y1 Y0 10533808843cSYunkang Tang * Byte4 Y7 0 Y5 Y4 Y3 1 1 0 10543808843cSYunkang Tang * Byte5 T&P 0 Z5 Z4 Z3 Z2 Z1 Z0 10553808843cSYunkang Tang * M / R / L: Middle / Right / Left button 10563808843cSYunkang Tang */ 10573808843cSYunkang Tang 10583808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 10593808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 10603808843cSYunkang Tang ((packet[3] & 0x20) << 1); 10613808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 10623808843cSYunkang Tang 10633808843cSYunkang Tang left = (packet[1] & 0x01); 10643808843cSYunkang Tang right = (packet[1] & 0x02) >> 1; 10653808843cSYunkang Tang middle = (packet[1] & 0x04) >> 2; 10663808843cSYunkang Tang 10673808843cSYunkang Tang /* Divide 2 since trackpoint's speed is too fast */ 10683808843cSYunkang Tang input_report_rel(dev2, REL_X, (char)x / 2); 10693808843cSYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 2)); 10703808843cSYunkang Tang 10713808843cSYunkang Tang input_report_key(dev2, BTN_LEFT, left); 10723808843cSYunkang Tang input_report_key(dev2, BTN_RIGHT, right); 10733808843cSYunkang Tang input_report_key(dev2, BTN_MIDDLE, middle); 10743808843cSYunkang Tang 10753808843cSYunkang Tang input_sync(dev2); 10763808843cSYunkang Tang } 10773808843cSYunkang Tang 10783808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 10793808843cSYunkang Tang { 10803808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10813808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 10823808843cSYunkang Tang struct alps_fields *f = &priv->f; 10833808843cSYunkang Tang 10843808843cSYunkang Tang memset(f, 0, sizeof(*f)); 10853808843cSYunkang Tang 10863808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 10873808843cSYunkang Tang return; 10883808843cSYunkang Tang 10893808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 10903808843cSYunkang Tang 10913808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 10923808843cSYunkang Tang 10933808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 10943808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 10953808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 10963808843cSYunkang Tang 10973808843cSYunkang Tang input_sync(dev); 10983808843cSYunkang Tang } 10993808843cSYunkang Tang 11003808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 11013808843cSYunkang Tang { 11023808843cSYunkang Tang unsigned char *packet = psmouse->packet; 11033808843cSYunkang Tang 11043808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 11053808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 11063808843cSYunkang Tang else 11073808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 11083808843cSYunkang Tang } 11093808843cSYunkang Tang 11101d9f2626SSebastian Kapfer static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 11111d9f2626SSebastian Kapfer unsigned char packet[], 11121d9f2626SSebastian Kapfer bool report_buttons) 11131d9f2626SSebastian Kapfer { 11141d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 11151d9f2626SSebastian Kapfer struct input_dev *dev2 = priv->dev2; 11161d9f2626SSebastian Kapfer 11171d9f2626SSebastian Kapfer if (report_buttons) 11181d9f2626SSebastian Kapfer alps_report_buttons(psmouse, dev2, psmouse->dev, 11191d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 11201d9f2626SSebastian Kapfer 11211d9f2626SSebastian Kapfer input_report_rel(dev2, REL_X, 11221d9f2626SSebastian Kapfer packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 11231d9f2626SSebastian Kapfer input_report_rel(dev2, REL_Y, 11241d9f2626SSebastian Kapfer packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 11251d9f2626SSebastian Kapfer 11261d9f2626SSebastian Kapfer input_sync(dev2); 11271d9f2626SSebastian Kapfer } 11281d9f2626SSebastian Kapfer 11291d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 11301da177e4SLinus Torvalds { 11311da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 11321da177e4SLinus Torvalds 11331d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 11341d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 11351d9f2626SSebastian Kapfer 11361d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 11371d9f2626SSebastian Kapfer /* 11381d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 11391d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 11401d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 11411d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 11421d9f2626SSebastian Kapfer */ 11431d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 11441d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 11451d9f2626SSebastian Kapfer } 11461d9f2626SSebastian Kapfer 11471d9f2626SSebastian Kapfer del_timer(&priv->timer); 11481d9f2626SSebastian Kapfer 11491d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 11501d9f2626SSebastian Kapfer 11511d9f2626SSebastian Kapfer /* 11521d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 11531d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 11541d9f2626SSebastian Kapfer * next packet or we got garbage. 11551d9f2626SSebastian Kapfer */ 11561d9f2626SSebastian Kapfer 11571d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 11581d9f2626SSebastian Kapfer psmouse->packet[4] | 11591d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 116099df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1161b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 11623b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 11633b112923SAndy Shevchenko psmouse->packet + 3); 11641d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 11651d9f2626SSebastian Kapfer } 11661d9f2626SSebastian Kapfer 116724af5cb9SKevin Cernekee priv->process_packet(psmouse); 11681d9f2626SSebastian Kapfer 11691d9f2626SSebastian Kapfer /* Continue with the next packet */ 11701d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 11711d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 11721d9f2626SSebastian Kapfer 11731d9f2626SSebastian Kapfer } else { 11741d9f2626SSebastian Kapfer 11751d9f2626SSebastian Kapfer /* 11761d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 11771d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 11781d9f2626SSebastian Kapfer * 11791d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 11801d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 11811d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1182b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 11831d9f2626SSebastian Kapfer * normal operation (user would need to press all 11841d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 11851d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 11861d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 11871d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1188b5d21704SDmitry Torokhov * de-synchronization. 11891d9f2626SSebastian Kapfer */ 11901d9f2626SSebastian Kapfer 11911d9f2626SSebastian Kapfer alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 11921d9f2626SSebastian Kapfer false); 11931d9f2626SSebastian Kapfer 11941d9f2626SSebastian Kapfer /* 11951d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 11961d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 11971d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 11981d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 11991d9f2626SSebastian Kapfer * is normally 1. 12001d9f2626SSebastian Kapfer */ 12011d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 12021d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 12031d9f2626SSebastian Kapfer } 12041d9f2626SSebastian Kapfer 12051d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 12061d9f2626SSebastian Kapfer } 12071d9f2626SSebastian Kapfer 12081d9f2626SSebastian Kapfer static void alps_flush_packet(unsigned long data) 12091d9f2626SSebastian Kapfer { 12101d9f2626SSebastian Kapfer struct psmouse *psmouse = (struct psmouse *)data; 121124af5cb9SKevin Cernekee struct alps_data *priv = psmouse->private; 12121d9f2626SSebastian Kapfer 12131d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 12141d9f2626SSebastian Kapfer 1215b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 12161d9f2626SSebastian Kapfer 12171d9f2626SSebastian Kapfer /* 12181d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 12191d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 12201d9f2626SSebastian Kapfer * ALPS packet. 12211d9f2626SSebastian Kapfer */ 12221d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 12231d9f2626SSebastian Kapfer psmouse->packet[4] | 12241d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1225b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 12263b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 12273b112923SAndy Shevchenko psmouse->packet + 3); 12281d9f2626SSebastian Kapfer } else { 122924af5cb9SKevin Cernekee priv->process_packet(psmouse); 12301d9f2626SSebastian Kapfer } 12311d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 12321d9f2626SSebastian Kapfer } 12331d9f2626SSebastian Kapfer 12341d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 12351d9f2626SSebastian Kapfer } 12361d9f2626SSebastian Kapfer 12371d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 12381d9f2626SSebastian Kapfer { 12391d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 12401d9f2626SSebastian Kapfer 12414ab8f7f3SPali Rohár /* 12424ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 12434ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 12444ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 12454ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 12464ab8f7f3SPali Rohár */ 12474ab8f7f3SPali Rohár if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) { 12481da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 12491d9f2626SSebastian Kapfer alps_report_bare_ps2_packet(psmouse, psmouse->packet, 12501d9f2626SSebastian Kapfer true); 12511da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 12521da177e4SLinus Torvalds } 12531da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 12541da177e4SLinus Torvalds } 12551da177e4SLinus Torvalds 12561d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 12571d9f2626SSebastian Kapfer 125899df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 12591d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 12601d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 12611d9f2626SSebastian Kapfer } 12621d9f2626SSebastian Kapfer 126399df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1264b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1265b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 126699df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 12671da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 12681d9f2626SSebastian Kapfer } 12691da177e4SLinus Torvalds 1270b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1271a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 127275af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 12731d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1274b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1275b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1276b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1277a7ef82aeSPali Rohár 1278a7ef82aeSPali Rohár if (priv->proto_version == ALPS_PROTO_V3 && 1279a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1280a7ef82aeSPali Rohár /* 1281a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1282a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1283a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1284a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1285a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1286a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1287a7ef82aeSPali Rohár * filling the logs. 1288a7ef82aeSPali Rohár */ 1289a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1290a7ef82aeSPali Rohár } 1291a7ef82aeSPali Rohár 12921da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 12931d9f2626SSebastian Kapfer } 12941da177e4SLinus Torvalds 12953808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7 && 12963808843cSYunkang Tang !alps_is_valid_package_v7(psmouse)) { 12973808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 12983808843cSYunkang Tang psmouse->pktcnt - 1, 12993808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 13003808843cSYunkang Tang return PSMOUSE_BAD_DATA; 13013808843cSYunkang Tang } 13023808843cSYunkang Tang 1303b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 130424af5cb9SKevin Cernekee priv->process_packet(psmouse); 13051da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 13061da177e4SLinus Torvalds } 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 13091da177e4SLinus Torvalds } 13101da177e4SLinus Torvalds 131125bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 131225bded7cSSeth Forshee { 131325bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 131425bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 131525bded7cSSeth Forshee int command; 131625bded7cSSeth Forshee unsigned char *param; 131725bded7cSSeth Forshee unsigned char dummy[4]; 131825bded7cSSeth Forshee 131925bded7cSSeth Forshee BUG_ON(nibble > 0xf); 132025bded7cSSeth Forshee 132125bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 132225bded7cSSeth Forshee param = (command & 0x0f00) ? 132325bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 132425bded7cSSeth Forshee 132525bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 132625bded7cSSeth Forshee return -1; 132725bded7cSSeth Forshee 132825bded7cSSeth Forshee return 0; 132925bded7cSSeth Forshee } 133025bded7cSSeth Forshee 133125bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 133225bded7cSSeth Forshee { 133325bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 133425bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 133525bded7cSSeth Forshee int i, nibble; 133625bded7cSSeth Forshee 133725bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 133825bded7cSSeth Forshee return -1; 133925bded7cSSeth Forshee 134025bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 134125bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 134225bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 134325bded7cSSeth Forshee return -1; 134425bded7cSSeth Forshee } 134525bded7cSSeth Forshee 134625bded7cSSeth Forshee return 0; 134725bded7cSSeth Forshee } 134825bded7cSSeth Forshee 134925bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 135025bded7cSSeth Forshee { 135125bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 135225bded7cSSeth Forshee unsigned char param[4]; 135325bded7cSSeth Forshee 135425bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 135525bded7cSSeth Forshee return -1; 135625bded7cSSeth Forshee 135725bded7cSSeth Forshee /* 135825bded7cSSeth Forshee * The address being read is returned in the first two bytes 135925bded7cSSeth Forshee * of the result. Check that this address matches the expected 136025bded7cSSeth Forshee * address. 136125bded7cSSeth Forshee */ 136225bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 136325bded7cSSeth Forshee return -1; 136425bded7cSSeth Forshee 136525bded7cSSeth Forshee return param[2]; 136625bded7cSSeth Forshee } 136725bded7cSSeth Forshee 136825bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 136925bded7cSSeth Forshee { 137025bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 137125bded7cSSeth Forshee return -1; 137225bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 137325bded7cSSeth Forshee } 137425bded7cSSeth Forshee 137525bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 137625bded7cSSeth Forshee { 137725bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 137825bded7cSSeth Forshee return -1; 137925bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 138025bded7cSSeth Forshee return -1; 138125bded7cSSeth Forshee return 0; 138225bded7cSSeth Forshee } 138325bded7cSSeth Forshee 138425bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 138525bded7cSSeth Forshee u8 value) 138625bded7cSSeth Forshee { 138725bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 138825bded7cSSeth Forshee return -1; 138925bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 139025bded7cSSeth Forshee } 139125bded7cSSeth Forshee 139224ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 139324ba9707SKevin Cernekee int repeated_command, unsigned char *param) 139424ba9707SKevin Cernekee { 139524ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 139624ba9707SKevin Cernekee 139724ba9707SKevin Cernekee param[0] = 0; 139824ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 139924ba9707SKevin Cernekee return -EIO; 140024ba9707SKevin Cernekee 140124ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 140224ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 140324ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 140424ba9707SKevin Cernekee return -EIO; 140524ba9707SKevin Cernekee 140624ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 140724ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 140824ba9707SKevin Cernekee return -EIO; 140924ba9707SKevin Cernekee 141039fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 141139fbe585SDmitry Torokhov repeated_command, param); 141224ba9707SKevin Cernekee return 0; 141324ba9707SKevin Cernekee } 141424ba9707SKevin Cernekee 14153808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 14163808843cSYunkang Tang { 14173808843cSYunkang Tang if (id[0] == 0x73) 14183808843cSYunkang Tang return true; 14193808843cSYunkang Tang 14203808843cSYunkang Tang if (id[0] == 0x88 && 14213808843cSYunkang Tang (id[1] == 0x07 || 14223808843cSYunkang Tang id[1] == 0x08 || 14233808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 14243808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 14253808843cSYunkang Tang return true; 14263808843cSYunkang Tang } 14273808843cSYunkang Tang 14283808843cSYunkang Tang return false; 14293808843cSYunkang Tang } 14303808843cSYunkang Tang 1431d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 143225bded7cSSeth Forshee { 143325bded7cSSeth Forshee unsigned char param[4]; 143425bded7cSSeth Forshee 143524ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 143625bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 143725bded7cSSeth Forshee return -1; 143825bded7cSSeth Forshee } 143925bded7cSSeth Forshee 14403808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 144125bded7cSSeth Forshee psmouse_dbg(psmouse, 144224ba9707SKevin Cernekee "unknown response while entering command mode\n"); 144325bded7cSSeth Forshee return -1; 144425bded7cSSeth Forshee } 144525bded7cSSeth Forshee return 0; 144625bded7cSSeth Forshee } 144725bded7cSSeth Forshee 144825bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 144925bded7cSSeth Forshee { 145025bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 145125bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 145225bded7cSSeth Forshee return -1; 145325bded7cSSeth Forshee return 0; 145425bded7cSSeth Forshee } 145525bded7cSSeth Forshee 14561da177e4SLinus Torvalds /* 14571da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 14581da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 14591da177e4SLinus Torvalds * I'd thought it would be other way around... 14601da177e4SLinus Torvalds */ 146125bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 14621da177e4SLinus Torvalds { 14631da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 14641da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 14651da177e4SLinus Torvalds 14661da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 14671da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 14681da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 14691da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 14701da177e4SLinus Torvalds return -1; 14711da177e4SLinus Torvalds 14721da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1473c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 14741da177e4SLinus Torvalds 14751da177e4SLinus Torvalds return 0; 14761da177e4SLinus Torvalds } 14771da177e4SLinus Torvalds 147825bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 14791da177e4SLinus Torvalds { 14801da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 14831da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 14841da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 14851da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 14861da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 14871da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 14881da177e4SLinus Torvalds return -1; 14891da177e4SLinus Torvalds 14901da177e4SLinus Torvalds /* 14911da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 14921da177e4SLinus Torvalds * get in our way 14931da177e4SLinus Torvalds */ 14941da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 14951da177e4SLinus Torvalds } 14961da177e4SLinus Torvalds 149795f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 149895f75e91SYunkang Tang { 149995f75e91SYunkang Tang int i, nibble; 150095f75e91SYunkang Tang 150195f75e91SYunkang Tang /* 150295f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 150395f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 150495f75e91SYunkang Tang */ 150595f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 150695f75e91SYunkang Tang nibble = (word >> i) & 0xf; 150795f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 150895f75e91SYunkang Tang return -1; 150995f75e91SYunkang Tang } 151095f75e91SYunkang Tang 151195f75e91SYunkang Tang return 0; 151295f75e91SYunkang Tang } 151395f75e91SYunkang Tang 151495f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 151595f75e91SYunkang Tang u16 addr, u16 value) 151695f75e91SYunkang Tang { 151795f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 151895f75e91SYunkang Tang 151995f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 152095f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 152195f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 152295f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 152395f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 152495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 152595f75e91SYunkang Tang return -1; 152695f75e91SYunkang Tang 152795f75e91SYunkang Tang return 0; 152895f75e91SYunkang Tang } 152995f75e91SYunkang Tang 153095f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 153195f75e91SYunkang Tang { 153295f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 153395f75e91SYunkang Tang 153495f75e91SYunkang Tang if (enable) { 153595f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 153695f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 153795f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 153895f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 153995f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 154095f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 154195f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 154295f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 154395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 154495f75e91SYunkang Tang return -1; 154595f75e91SYunkang Tang } else { 154695f75e91SYunkang Tang /* EC to exit monitor mode */ 154795f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 154895f75e91SYunkang Tang return -1; 154995f75e91SYunkang Tang } 155095f75e91SYunkang Tang 155195f75e91SYunkang Tang return 0; 155295f75e91SYunkang Tang } 155395f75e91SYunkang Tang 155495f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 155595f75e91SYunkang Tang { 155695f75e91SYunkang Tang u16 reg_val = 0x181; 155795f75e91SYunkang Tang int ret = -1; 155895f75e91SYunkang Tang 155995f75e91SYunkang Tang /* enter monitor mode, to write the register */ 156095f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 156195f75e91SYunkang Tang return -1; 156295f75e91SYunkang Tang 156395f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 156495f75e91SYunkang Tang 156595f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 156695f75e91SYunkang Tang ret = -1; 156795f75e91SYunkang Tang 156895f75e91SYunkang Tang return ret; 156995f75e91SYunkang Tang } 157095f75e91SYunkang Tang 15711da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 15721da177e4SLinus Torvalds { 15731da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 157424ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 15751da177e4SLinus Torvalds return -1; 15761da177e4SLinus Torvalds 15771da177e4SLinus Torvalds return 0; 15781da177e4SLinus Torvalds } 15791da177e4SLinus Torvalds 15801da177e4SLinus Torvalds /* 15811da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 15821da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 15831da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 15841da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 15851da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 15861da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 15871da177e4SLinus Torvalds * we don't fiddle with it. 15881da177e4SLinus Torvalds */ 15891da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 15901da177e4SLinus Torvalds { 15911da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 15921da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 15931da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 15941da177e4SLinus Torvalds unsigned char param[4]; 15951da177e4SLinus Torvalds 15961da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 15971da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15981da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 15991da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 16001da177e4SLinus Torvalds return -1; 16011da177e4SLinus Torvalds 16021da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 16031da177e4SLinus Torvalds return -1; 16041da177e4SLinus Torvalds 16051da177e4SLinus Torvalds return 0; 16061da177e4SLinus Torvalds } 16071da177e4SLinus Torvalds 1608f0d5c6f4SDmitry Torokhov /* 1609f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1610f0d5c6f4SDmitry Torokhov * Used in resync. 1611f0d5c6f4SDmitry Torokhov */ 1612f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1613f0d5c6f4SDmitry Torokhov { 1614f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1615b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1616b7802c5cSDmitry Torokhov bool poll_failed; 1617f0d5c6f4SDmitry Torokhov 161899df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 161925bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1620f0d5c6f4SDmitry Torokhov 1621f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1622f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1623f0d5c6f4SDmitry Torokhov 162499df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 162525bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 1626f0d5c6f4SDmitry Torokhov 162799df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1628f0d5c6f4SDmitry Torokhov return -1; 1629f0d5c6f4SDmitry Torokhov 1630f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 1631f0d5c6f4SDmitry Torokhov /* 1632f0d5c6f4SDmitry Torokhov * Poll the track stick ... 1633f0d5c6f4SDmitry Torokhov */ 1634f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1635f0d5c6f4SDmitry Torokhov return -1; 1636f0d5c6f4SDmitry Torokhov } 1637f0d5c6f4SDmitry Torokhov 1638f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 1639f0d5c6f4SDmitry Torokhov return 0; 1640f0d5c6f4SDmitry Torokhov } 1641f0d5c6f4SDmitry Torokhov 164225bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 16431da177e4SLinus Torvalds { 16441da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 16451da177e4SLinus Torvalds 164699df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 164725bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 16481da177e4SLinus Torvalds return -1; 1649b7802c5cSDmitry Torokhov } 16501da177e4SLinus Torvalds 1651b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 1652b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 16531da177e4SLinus Torvalds return -1; 1654963f626dSPeter Osterlund } 16551da177e4SLinus Torvalds 165625bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 1657b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 16581da177e4SLinus Torvalds return -1; 16591da177e4SLinus Torvalds } 16601da177e4SLinus Torvalds 166199df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 166225bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 16631da177e4SLinus Torvalds return -1; 1664b7802c5cSDmitry Torokhov } 16651da177e4SLinus Torvalds 16661e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 16671e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1668b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 16691e0c5b12SDmitry Torokhov return -1; 16701e0c5b12SDmitry Torokhov } 16711e0c5b12SDmitry Torokhov 16721e0c5b12SDmitry Torokhov return 0; 16731e0c5b12SDmitry Torokhov } 16741e0c5b12SDmitry Torokhov 167595f75e91SYunkang Tang static int alps_hw_init_v6(struct psmouse *psmouse) 167695f75e91SYunkang Tang { 167795f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 167895f75e91SYunkang Tang 167995f75e91SYunkang Tang /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 168095f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, true)) 168195f75e91SYunkang Tang return -1; 168295f75e91SYunkang Tang 168395f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 168495f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 168595f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 168695f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 168795f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 168895f75e91SYunkang Tang return -1; 168995f75e91SYunkang Tang 169095f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 169195f75e91SYunkang Tang return -1; 169295f75e91SYunkang Tang 169395f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 169495f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 169595f75e91SYunkang Tang return -1; 169695f75e91SYunkang Tang } 169795f75e91SYunkang Tang 169895f75e91SYunkang Tang return 0; 169995f75e91SYunkang Tang } 170095f75e91SYunkang Tang 170125bded7cSSeth Forshee /* 1702cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 170325bded7cSSeth Forshee */ 1704cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1705cd401204SKevin Cernekee int reg_base, bool enable) 170625bded7cSSeth Forshee { 1707cd401204SKevin Cernekee int reg_val, ret = -1; 170825bded7cSSeth Forshee 1709d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 171025bded7cSSeth Forshee return -1; 171125bded7cSSeth Forshee 1712cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1713cd401204SKevin Cernekee if (reg_val == -1) 1714cd401204SKevin Cernekee goto error; 1715cd401204SKevin Cernekee 171625bded7cSSeth Forshee if (enable) 171725bded7cSSeth Forshee reg_val |= 0x01; 171825bded7cSSeth Forshee else 171925bded7cSSeth Forshee reg_val &= ~0x01; 172025bded7cSSeth Forshee 1721cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 172225bded7cSSeth Forshee 1723cd401204SKevin Cernekee error: 1724cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 1725cd401204SKevin Cernekee ret = -1; 1726cd401204SKevin Cernekee return ret; 172725bded7cSSeth Forshee } 172825bded7cSSeth Forshee 172925bded7cSSeth Forshee /* Must be in command mode when calling this function */ 173025bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 173125bded7cSSeth Forshee { 173225bded7cSSeth Forshee int reg_val; 173325bded7cSSeth Forshee 173425bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 173525bded7cSSeth Forshee if (reg_val == -1) 173625bded7cSSeth Forshee return -1; 173725bded7cSSeth Forshee 173825bded7cSSeth Forshee reg_val |= 0x06; 173925bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 174025bded7cSSeth Forshee return -1; 174125bded7cSSeth Forshee 174225bded7cSSeth Forshee return 0; 174325bded7cSSeth Forshee } 174425bded7cSSeth Forshee 1745cd401204SKevin Cernekee static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 174625bded7cSSeth Forshee { 1747cd401204SKevin Cernekee int ret = -EIO, reg_val; 174825bded7cSSeth Forshee 1749d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 175025bded7cSSeth Forshee goto error; 175125bded7cSSeth Forshee 1752cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 175325bded7cSSeth Forshee if (reg_val == -1) 175425bded7cSSeth Forshee goto error; 1755cd401204SKevin Cernekee 1756cd401204SKevin Cernekee /* bit 7: trackstick is present */ 1757cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 1758cd401204SKevin Cernekee 1759cd401204SKevin Cernekee error: 1760cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 1761cd401204SKevin Cernekee return ret; 1762cd401204SKevin Cernekee } 1763cd401204SKevin Cernekee 1764cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 1765cd401204SKevin Cernekee { 1766cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1767cd401204SKevin Cernekee int ret = 0; 1768cd401204SKevin Cernekee unsigned char param[4]; 1769cd401204SKevin Cernekee 1770cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 1771cd401204SKevin Cernekee return -EIO; 177225bded7cSSeth Forshee 177325bded7cSSeth Forshee /* 177425bded7cSSeth Forshee * E7 report for the trackstick 177525bded7cSSeth Forshee * 177625bded7cSSeth Forshee * There have been reports of failures to seem to trace back 177725bded7cSSeth Forshee * to the above trackstick check failing. When these occur 177825bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 177925bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 178025bded7cSSeth Forshee * all. 178125bded7cSSeth Forshee */ 1782cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 178325bded7cSSeth Forshee psmouse_warn(psmouse, "trackstick E7 report failed\n"); 1784cd401204SKevin Cernekee ret = -ENODEV; 178525bded7cSSeth Forshee } else { 178639fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 178725bded7cSSeth Forshee 178825bded7cSSeth Forshee /* 178925bded7cSSeth Forshee * Not sure what this does, but it is absolutely 179025bded7cSSeth Forshee * essential. Without it, the touchpad does not 179125bded7cSSeth Forshee * work at all and the trackstick just emits normal 179225bded7cSSeth Forshee * PS/2 packets. 179325bded7cSSeth Forshee */ 179425bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 179525bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 179625bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 179725bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x9) || 179825bded7cSSeth Forshee alps_command_mode_send_nibble(psmouse, 0x4)) { 179925bded7cSSeth Forshee psmouse_err(psmouse, 180025bded7cSSeth Forshee "Error sending magic E6 sequence\n"); 1801cd401204SKevin Cernekee ret = -EIO; 180225bded7cSSeth Forshee goto error; 180325bded7cSSeth Forshee } 180425bded7cSSeth Forshee 1805cd401204SKevin Cernekee /* 1806cd401204SKevin Cernekee * This ensures the trackstick packets are in the format 1807cd401204SKevin Cernekee * supported by this driver. If bit 1 isn't set the packet 1808cd401204SKevin Cernekee * format is different. 1809cd401204SKevin Cernekee */ 1810d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1811cd401204SKevin Cernekee alps_command_mode_write_reg(psmouse, 1812cd401204SKevin Cernekee reg_base + 0x08, 0x82) || 1813cd401204SKevin Cernekee alps_exit_command_mode(psmouse)) 1814cd401204SKevin Cernekee ret = -EIO; 1815cd401204SKevin Cernekee } 1816cd401204SKevin Cernekee 1817cd401204SKevin Cernekee error: 1818cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 1819cd401204SKevin Cernekee ret = -EIO; 1820cd401204SKevin Cernekee 1821cd401204SKevin Cernekee return ret; 1822cd401204SKevin Cernekee } 1823cd401204SKevin Cernekee 1824cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 1825cd401204SKevin Cernekee { 1826cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 1827cd401204SKevin Cernekee int reg_val; 1828cd401204SKevin Cernekee unsigned char param[4]; 1829cd401204SKevin Cernekee 1830cd401204SKevin Cernekee reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 1831cd401204SKevin Cernekee if (reg_val == -EIO) 1832cd401204SKevin Cernekee goto error; 183339fbe585SDmitry Torokhov 1834cd401204SKevin Cernekee if (reg_val == 0 && 1835cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 1836cd401204SKevin Cernekee goto error; 1837cd401204SKevin Cernekee 1838d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 1839cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 184025bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 184125bded7cSSeth Forshee goto error; 184225bded7cSSeth Forshee } 184325bded7cSSeth Forshee 184425bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 184525bded7cSSeth Forshee if (reg_val == -1) 184625bded7cSSeth Forshee goto error; 184725bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 184825bded7cSSeth Forshee goto error; 184925bded7cSSeth Forshee 185025bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 185125bded7cSSeth Forshee if (reg_val == -1) 185225bded7cSSeth Forshee goto error; 185325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 185425bded7cSSeth Forshee goto error; 185525bded7cSSeth Forshee 185625bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 185725bded7cSSeth Forshee goto error; 185825bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 185925bded7cSSeth Forshee goto error; 186025bded7cSSeth Forshee 186125bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 186225bded7cSSeth Forshee goto error; 186325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 186425bded7cSSeth Forshee goto error; 186525bded7cSSeth Forshee 186625bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 186725bded7cSSeth Forshee goto error; 186825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 186925bded7cSSeth Forshee goto error; 187025bded7cSSeth Forshee 187125bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 187225bded7cSSeth Forshee goto error; 187325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 187425bded7cSSeth Forshee goto error; 187525bded7cSSeth Forshee 187625bded7cSSeth Forshee alps_exit_command_mode(psmouse); 187725bded7cSSeth Forshee 187825bded7cSSeth Forshee /* Set rate and enable data reporting */ 187925bded7cSSeth Forshee param[0] = 0x64; 188025bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 188125bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 188225bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 188325bded7cSSeth Forshee return -1; 188425bded7cSSeth Forshee } 188525bded7cSSeth Forshee 188625bded7cSSeth Forshee return 0; 188725bded7cSSeth Forshee 188825bded7cSSeth Forshee error: 188925bded7cSSeth Forshee /* 189025bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 189125bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 189225bded7cSSeth Forshee * to be safe 189325bded7cSSeth Forshee */ 189425bded7cSSeth Forshee alps_exit_command_mode(psmouse); 189525bded7cSSeth Forshee return -1; 189625bded7cSSeth Forshee } 189725bded7cSSeth Forshee 1898f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 1899f3f33c67SHans de Goede { 1900f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 1901f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 1902f3f33c67SHans de Goede 1903f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 1904f3f33c67SHans de Goede if (reg < 0) 1905f3f33c67SHans de Goede return reg; 1906f3f33c67SHans de Goede 1907f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1908f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 1909f3f33c67SHans de Goede 1910f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 1911f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 1912f3f33c67SHans de Goede 1913f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 1914f3f33c67SHans de Goede if (reg < 0) 1915f3f33c67SHans de Goede return reg; 1916f3f33c67SHans de Goede 1917f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1918f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 1919f3f33c67SHans de Goede 1920f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 1921f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 1922f3f33c67SHans de Goede 1923f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 1924f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 1925f3f33c67SHans de Goede 1926f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 1927f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 1928f3f33c67SHans de Goede 1929f3f33c67SHans de Goede psmouse_dbg(psmouse, 1930f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 1931f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 1932f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 1933f3f33c67SHans de Goede 1934f3f33c67SHans de Goede return 0; 1935f3f33c67SHans de Goede } 1936f3f33c67SHans de Goede 19371302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 19381302bac3SKevin Cernekee { 1939cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 19401302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 19411302bac3SKevin Cernekee int reg_val, ret = -1; 19421302bac3SKevin Cernekee 1943cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 1944cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 1945cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 1946cd401204SKevin Cernekee if (reg_val == -EIO) 1947cd401204SKevin Cernekee goto error; 1948cd401204SKevin Cernekee if (reg_val == -ENODEV) 1949cd401204SKevin Cernekee priv->flags &= ~ALPS_DUALPOINT; 1950cd401204SKevin Cernekee } 1951cd401204SKevin Cernekee 1952d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 19531302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 19541302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 19551302bac3SKevin Cernekee goto error; 19561302bac3SKevin Cernekee 1957f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 1958f3f33c67SHans de Goede goto error; 1959f3f33c67SHans de Goede 19601302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 19611302bac3SKevin Cernekee if (reg_val == -1) 19621302bac3SKevin Cernekee goto error; 19631302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 19641302bac3SKevin Cernekee goto error; 19651302bac3SKevin Cernekee 19661302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 19671302bac3SKevin Cernekee goto error; 19681302bac3SKevin Cernekee 19691302bac3SKevin Cernekee /* enter absolute mode */ 19701302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 19711302bac3SKevin Cernekee if (reg_val == -1) 19721302bac3SKevin Cernekee goto error; 19731302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 19741302bac3SKevin Cernekee goto error; 19751302bac3SKevin Cernekee 19761302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 19771302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 19781302bac3SKevin Cernekee 19791302bac3SKevin Cernekee error: 19801302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 19811302bac3SKevin Cernekee return ret; 19821302bac3SKevin Cernekee } 19831302bac3SKevin Cernekee 198425bded7cSSeth Forshee /* Must be in command mode when calling this function */ 198525bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 198625bded7cSSeth Forshee { 198725bded7cSSeth Forshee int reg_val; 198825bded7cSSeth Forshee 198925bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 199025bded7cSSeth Forshee if (reg_val == -1) 199125bded7cSSeth Forshee return -1; 199225bded7cSSeth Forshee 199325bded7cSSeth Forshee reg_val |= 0x02; 199425bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 199525bded7cSSeth Forshee return -1; 199625bded7cSSeth Forshee 199725bded7cSSeth Forshee return 0; 199825bded7cSSeth Forshee } 199925bded7cSSeth Forshee 200025bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 200125bded7cSSeth Forshee { 200225bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 200325bded7cSSeth Forshee unsigned char param[4]; 200425bded7cSSeth Forshee 2005d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 200625bded7cSSeth Forshee goto error; 200725bded7cSSeth Forshee 200825bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 200925bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 201025bded7cSSeth Forshee goto error; 201125bded7cSSeth Forshee } 201225bded7cSSeth Forshee 201325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 201425bded7cSSeth Forshee goto error; 201525bded7cSSeth Forshee 201625bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 201725bded7cSSeth Forshee goto error; 201825bded7cSSeth Forshee 201925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 202025bded7cSSeth Forshee goto error; 202125bded7cSSeth Forshee 202225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 202325bded7cSSeth Forshee goto error; 202425bded7cSSeth Forshee 202525bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 202625bded7cSSeth Forshee goto error; 202725bded7cSSeth Forshee 202825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 202925bded7cSSeth Forshee goto error; 203025bded7cSSeth Forshee 203125bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 203225bded7cSSeth Forshee goto error; 203325bded7cSSeth Forshee 203425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 203525bded7cSSeth Forshee goto error; 203625bded7cSSeth Forshee 203725bded7cSSeth Forshee alps_exit_command_mode(psmouse); 203825bded7cSSeth Forshee 203925bded7cSSeth Forshee /* 204025bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 204125bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 204225bded7cSSeth Forshee * just in a more compact format. 204325bded7cSSeth Forshee */ 204425bded7cSSeth Forshee param[0] = 0xc8; 204525bded7cSSeth Forshee param[1] = 0x64; 204625bded7cSSeth Forshee param[2] = 0x50; 204725bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 204825bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 204925bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 205025bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 205125bded7cSSeth Forshee return -1; 205225bded7cSSeth Forshee 205325bded7cSSeth Forshee /* Set rate and enable data reporting */ 205425bded7cSSeth Forshee param[0] = 0x64; 205525bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 205625bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 205725bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 205825bded7cSSeth Forshee return -1; 205925bded7cSSeth Forshee } 206025bded7cSSeth Forshee 206125bded7cSSeth Forshee return 0; 206225bded7cSSeth Forshee 206325bded7cSSeth Forshee error: 206425bded7cSSeth Forshee /* 206525bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 206625bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 206725bded7cSSeth Forshee * to be safe 206825bded7cSSeth Forshee */ 206925bded7cSSeth Forshee alps_exit_command_mode(psmouse); 207025bded7cSSeth Forshee return -1; 207125bded7cSSeth Forshee } 207225bded7cSSeth Forshee 2073ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2074ee65d4b3SYunkang Tang struct alps_data *priv) 2075ee65d4b3SYunkang Tang { 2076ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2077ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2078ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2079ee65d4b3SYunkang Tang 2080ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2081ee65d4b3SYunkang Tang return -1; 2082ee65d4b3SYunkang Tang 2083ee65d4b3SYunkang Tang param[0] = 0x0a; 2084ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2085ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2086ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2087ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2088ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2089ee65d4b3SYunkang Tang return -1; 2090ee65d4b3SYunkang Tang 2091ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2092ee65d4b3SYunkang Tang return -1; 2093ee65d4b3SYunkang Tang 2094ee65d4b3SYunkang Tang /* 2095ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2096ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2097ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2098ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2099ee65d4b3SYunkang Tang * 2100ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2101ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2102ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2103ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2104ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2105ee65d4b3SYunkang Tang */ 2106ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2107ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2108ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2109ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2110ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2111ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2112ee65d4b3SYunkang Tang 2113ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2114ee65d4b3SYunkang Tang return -1; 2115ee65d4b3SYunkang Tang 2116ee65d4b3SYunkang Tang return 0; 2117ee65d4b3SYunkang Tang } 2118ee65d4b3SYunkang Tang 211975af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 212075af9e56SDave Turvene { 212175af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 212275af9e56SDave Turvene unsigned char param[2]; 212375af9e56SDave Turvene 212475af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 212575af9e56SDave Turvene param[0] = 0x64; 212675af9e56SDave Turvene param[1] = 0x28; 212775af9e56SDave Turvene 212875af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 212975af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 213075af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 213175af9e56SDave Turvene return -1; 213275af9e56SDave Turvene 213375af9e56SDave Turvene return 0; 213475af9e56SDave Turvene } 213575af9e56SDave Turvene 21363808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 21373808843cSYunkang Tang { 21383808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 21393808843cSYunkang Tang int reg_val, ret = -1; 21403808843cSYunkang Tang 21413808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 21423808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 21433808843cSYunkang Tang goto error; 21443808843cSYunkang Tang 2145f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2146f3f33c67SHans de Goede goto error; 2147f3f33c67SHans de Goede 21483808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 21493808843cSYunkang Tang goto error; 21503808843cSYunkang Tang 21513808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 21523808843cSYunkang Tang if (reg_val == -1) 21533808843cSYunkang Tang goto error; 21543808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 21553808843cSYunkang Tang goto error; 21563808843cSYunkang Tang 21573808843cSYunkang Tang alps_exit_command_mode(psmouse); 21583808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 21593808843cSYunkang Tang 21603808843cSYunkang Tang error: 21613808843cSYunkang Tang alps_exit_command_mode(psmouse); 21623808843cSYunkang Tang return ret; 21633808843cSYunkang Tang } 21643808843cSYunkang Tang 216524af5cb9SKevin Cernekee static void alps_set_defaults(struct alps_data *priv) 216625bded7cSSeth Forshee { 2167f673ceb1SKevin Cernekee priv->byte0 = 0x8f; 2168f673ceb1SKevin Cernekee priv->mask0 = 0x8f; 2169f673ceb1SKevin Cernekee priv->flags = ALPS_DUALPOINT; 2170f673ceb1SKevin Cernekee 21717a9f73e7SKevin Cernekee priv->x_max = 2000; 21727a9f73e7SKevin Cernekee priv->y_max = 1400; 21737a9f73e7SKevin Cernekee priv->x_bits = 15; 21747a9f73e7SKevin Cernekee priv->y_bits = 11; 21757a9f73e7SKevin Cernekee 217699df65e7SKevin Cernekee switch (priv->proto_version) { 217725bded7cSSeth Forshee case ALPS_PROTO_V1: 217825bded7cSSeth Forshee case ALPS_PROTO_V2: 217924af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 218024af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 218124af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 218295f75e91SYunkang Tang priv->x_max = 1023; 218395f75e91SYunkang Tang priv->y_max = 767; 218425bded7cSSeth Forshee break; 218525bded7cSSeth Forshee case ALPS_PROTO_V3: 218624af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 218724af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 218824af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 2189f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 219050e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 219150e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 219225bded7cSSeth Forshee break; 219325bded7cSSeth Forshee case ALPS_PROTO_V4: 219424af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 219524af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 219624af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_mt; 219750e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 219850e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 219925bded7cSSeth Forshee break; 220075af9e56SDave Turvene case ALPS_PROTO_V5: 220175af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2202ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 220375af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 220475af9e56SDave Turvene priv->set_abs_params = alps_set_abs_params_mt; 220575af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 220675af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 220775af9e56SDave Turvene priv->byte0 = 0xc8; 2208ee65d4b3SYunkang Tang priv->mask0 = 0xd8; 220975af9e56SDave Turvene priv->flags = 0; 221075af9e56SDave Turvene priv->x_max = 1360; 221175af9e56SDave Turvene priv->y_max = 660; 221275af9e56SDave Turvene priv->x_bits = 23; 221375af9e56SDave Turvene priv->y_bits = 12; 221475af9e56SDave Turvene break; 221595f75e91SYunkang Tang case ALPS_PROTO_V6: 221695f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 221795f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 221895f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 221995f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 222095f75e91SYunkang Tang priv->x_max = 2047; 222195f75e91SYunkang Tang priv->y_max = 1535; 222295f75e91SYunkang Tang break; 22233808843cSYunkang Tang case ALPS_PROTO_V7: 22243808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 22253808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 22263808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 22273808843cSYunkang Tang priv->set_abs_params = alps_set_abs_params_mt; 22283808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 22293808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 22303808843cSYunkang Tang priv->x_max = 0xfff; 22313808843cSYunkang Tang priv->y_max = 0x7ff; 22323808843cSYunkang Tang priv->byte0 = 0x48; 22333808843cSYunkang Tang priv->mask0 = 0x48; 22343808843cSYunkang Tang 22353808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 22363808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 22373808843cSYunkang Tang break; 223825bded7cSSeth Forshee } 223925bded7cSSeth Forshee } 224025bded7cSSeth Forshee 2241b5d6b851SKevin Cernekee static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, 2242b5d6b851SKevin Cernekee unsigned char *e7, unsigned char *ec) 22432e992cc0SKevin Cernekee { 2244b5d6b851SKevin Cernekee const struct alps_model_info *model; 22452e992cc0SKevin Cernekee int i; 22462e992cc0SKevin Cernekee 2247b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2248b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2249b5d6b851SKevin Cernekee 2250b5d6b851SKevin Cernekee if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2251b5d6b851SKevin Cernekee (!model->command_mode_resp || 2252b5d6b851SKevin Cernekee model->command_mode_resp == ec[2])) { 2253b5d6b851SKevin Cernekee 2254b5d6b851SKevin Cernekee priv->proto_version = model->proto_version; 225524af5cb9SKevin Cernekee alps_set_defaults(priv); 225624af5cb9SKevin Cernekee 2257b5d6b851SKevin Cernekee priv->flags = model->flags; 2258b5d6b851SKevin Cernekee priv->byte0 = model->byte0; 2259b5d6b851SKevin Cernekee priv->mask0 = model->mask0; 2260b5d6b851SKevin Cernekee 2261b5d6b851SKevin Cernekee return 0; 2262b5d6b851SKevin Cernekee } 2263b5d6b851SKevin Cernekee } 2264b5d6b851SKevin Cernekee 2265b5d6b851SKevin Cernekee return -EINVAL; 2266b5d6b851SKevin Cernekee } 2267b5d6b851SKevin Cernekee 2268b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2269b5d6b851SKevin Cernekee { 2270b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2271b5d6b851SKevin Cernekee 22722e992cc0SKevin Cernekee /* 22732e992cc0SKevin Cernekee * First try "E6 report". 22742e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 22752e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 22762e992cc0SKevin Cernekee * pressed. 22772e992cc0SKevin Cernekee */ 2278b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2279b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2280b5d6b851SKevin Cernekee return -EIO; 22812e992cc0SKevin Cernekee 2282b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2283b5d6b851SKevin Cernekee return -EINVAL; 22842e992cc0SKevin Cernekee 22852e992cc0SKevin Cernekee /* 2286b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2287b5d6b851SKevin Cernekee * most ALPS touchpads. 22882e992cc0SKevin Cernekee */ 2289b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2290b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2291b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2292b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2293b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2294b5d6b851SKevin Cernekee return -EIO; 22952e992cc0SKevin Cernekee 2296c0cd17f6SHans de Goede /* Save the Firmware version */ 2297c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2298c0cd17f6SHans de Goede 2299f673ceb1SKevin Cernekee if (alps_match_table(psmouse, priv, e7, ec) == 0) { 2300b5d6b851SKevin Cernekee return 0; 230175af9e56SDave Turvene } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 2302ee65d4b3SYunkang Tang ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 230375af9e56SDave Turvene priv->proto_version = ALPS_PROTO_V5; 230475af9e56SDave Turvene alps_set_defaults(priv); 2305ee65d4b3SYunkang Tang if (alps_dolphin_get_device_area(psmouse, priv)) 2306ee65d4b3SYunkang Tang return -EIO; 2307ee65d4b3SYunkang Tang else 230875af9e56SDave Turvene return 0; 23093808843cSYunkang Tang } else if (ec[0] == 0x88 && 23103808843cSYunkang Tang ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 23113808843cSYunkang Tang priv->proto_version = ALPS_PROTO_V7; 23123808843cSYunkang Tang alps_set_defaults(priv); 23133808843cSYunkang Tang 23143808843cSYunkang Tang return 0; 23151302bac3SKevin Cernekee } else if (ec[0] == 0x88 && ec[1] == 0x08) { 23161302bac3SKevin Cernekee priv->proto_version = ALPS_PROTO_V3; 23171302bac3SKevin Cernekee alps_set_defaults(priv); 23181302bac3SKevin Cernekee 23191302bac3SKevin Cernekee priv->hw_init = alps_hw_init_rushmore_v3; 23201302bac3SKevin Cernekee priv->decode_fields = alps_decode_rushmore; 23211302bac3SKevin Cernekee priv->x_bits = 16; 23221302bac3SKevin Cernekee priv->y_bits = 12; 232340e8f53bSHans de Goede priv->flags |= ALPS_IS_RUSHMORE; 23241302bac3SKevin Cernekee 2325cd401204SKevin Cernekee /* hack to make addr_command, nibble_command available */ 2326cd401204SKevin Cernekee psmouse->private = priv; 2327cd401204SKevin Cernekee 2328cd401204SKevin Cernekee if (alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_RUSHMORE)) 2329cd401204SKevin Cernekee priv->flags &= ~ALPS_DUALPOINT; 2330cd401204SKevin Cernekee 23311302bac3SKevin Cernekee return 0; 2332f673ceb1SKevin Cernekee } else if (ec[0] == 0x88 && ec[1] == 0x07 && 2333f673ceb1SKevin Cernekee ec[2] >= 0x90 && ec[2] <= 0x9d) { 2334f673ceb1SKevin Cernekee priv->proto_version = ALPS_PROTO_V3; 2335f673ceb1SKevin Cernekee alps_set_defaults(priv); 2336f673ceb1SKevin Cernekee 2337f673ceb1SKevin Cernekee return 0; 2338f673ceb1SKevin Cernekee } 23392e992cc0SKevin Cernekee 2340a9e06219SDmitry Torokhov psmouse_dbg(psmouse, 2341a9e06219SDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 23422e992cc0SKevin Cernekee 2343b5d6b851SKevin Cernekee return -EINVAL; 23442e992cc0SKevin Cernekee } 23452e992cc0SKevin Cernekee 23461e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 23471e0c5b12SDmitry Torokhov { 2348b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 234971bb21b6SMaxim Levitsky 23501e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 23511e0c5b12SDmitry Torokhov 2352b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 23531e0c5b12SDmitry Torokhov return -1; 23541e0c5b12SDmitry Torokhov 235524af5cb9SKevin Cernekee return priv->hw_init(psmouse); 23561da177e4SLinus Torvalds } 23571da177e4SLinus Torvalds 23581da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 23591da177e4SLinus Torvalds { 23601da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 23612e5b636bSDmitry Torokhov 23621da177e4SLinus Torvalds psmouse_reset(psmouse); 23631d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 23642e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 23651da177e4SLinus Torvalds kfree(priv); 23661da177e4SLinus Torvalds } 23671da177e4SLinus Torvalds 236824af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 236924af5cb9SKevin Cernekee struct input_dev *dev1) 237024af5cb9SKevin Cernekee { 237195f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 237295f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 237324af5cb9SKevin Cernekee } 237424af5cb9SKevin Cernekee 237524af5cb9SKevin Cernekee static void alps_set_abs_params_mt(struct alps_data *priv, 237624af5cb9SKevin Cernekee struct input_dev *dev1) 237724af5cb9SKevin Cernekee { 23787a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 23797a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 238024af5cb9SKevin Cernekee 2381f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2382f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2383f3f33c67SHans de Goede 2384cdf333efSHans de Goede input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER | 2385cdf333efSHans de Goede INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT); 2386cdf333efSHans de Goede 238724af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 238824af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 23893808843cSYunkang Tang 23903808843cSYunkang Tang /* V7 is real multi-touch */ 23913808843cSYunkang Tang if (priv->proto_version == ALPS_PROTO_V7) 23923808843cSYunkang Tang clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit); 239324af5cb9SKevin Cernekee } 239424af5cb9SKevin Cernekee 23951da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 23961da177e4SLinus Torvalds { 23971da177e4SLinus Torvalds struct alps_data *priv; 23982e5b636bSDmitry Torokhov struct input_dev *dev1 = psmouse->dev, *dev2; 23991da177e4SLinus Torvalds 2400f42649e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 24012e5b636bSDmitry Torokhov dev2 = input_allocate_device(); 24022e5b636bSDmitry Torokhov if (!priv || !dev2) 24031da177e4SLinus Torvalds goto init_fail; 24042e5b636bSDmitry Torokhov 24052e5b636bSDmitry Torokhov priv->dev2 = dev2; 24061d9f2626SSebastian Kapfer setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 24071d9f2626SSebastian Kapfer 24081e0c5b12SDmitry Torokhov psmouse->private = priv; 24091da177e4SLinus Torvalds 241025bded7cSSeth Forshee psmouse_reset(psmouse); 241125bded7cSSeth Forshee 2412b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 241371bb21b6SMaxim Levitsky goto init_fail; 241471bb21b6SMaxim Levitsky 241524af5cb9SKevin Cernekee if (priv->hw_init(psmouse)) 24161da177e4SLinus Torvalds goto init_fail; 24171da177e4SLinus Torvalds 24187105d2eaSDmitry Torokhov /* 24197105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 24207105d2eaSDmitry Torokhov * is not a relative device. 24217105d2eaSDmitry Torokhov */ 24227105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 24237105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 24247105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 24257105d2eaSDmitry Torokhov 24267105d2eaSDmitry Torokhov /* 24277105d2eaSDmitry Torokhov * Now set up our capabilities. 24287105d2eaSDmitry Torokhov */ 24297b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 24307b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 24317b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 243271bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 243371bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 24341da177e4SLinus Torvalds 24357b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 243625bded7cSSeth Forshee 243724af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 24383808843cSYunkang Tang /* No pressure on V7 */ 24393808843cSYunkang Tang if (priv->proto_version != ALPS_PROTO_V7) 24402e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 24411da177e4SLinus Torvalds 244299df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 24437b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 24447b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 24451da177e4SLinus Torvalds } 24461da177e4SLinus Torvalds 244799df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 24487b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 24497b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 24501da177e4SLinus Torvalds } 24511da177e4SLinus Torvalds 245299df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 245371bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 245471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 245571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 245671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 24573808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 24583808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 24593808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 246071bb21b6SMaxim Levitsky } else { 246171bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 246271bb21b6SMaxim Levitsky } 246371bb21b6SMaxim Levitsky 2464dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 2465dfba8600SPali Rohár /* 2466dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 2467dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 2468dfba8600SPali Rohár */ 2469dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 2470dfba8600SPali Rohár dev2->id.product = PSMOUSE_ALPS; 2471dfba8600SPali Rohár dev2->id.version = priv->proto_version; 2472dfba8600SPali Rohár } else { 2473dfba8600SPali Rohár dev2->name = "PS/2 ALPS Mouse"; 2474dfba8600SPali Rohár dev2->id.product = PSMOUSE_PS2; 2475dfba8600SPali Rohár dev2->id.version = 0x0000; 2476dfba8600SPali Rohár } 2477dfba8600SPali Rohár 247808ffce45SDmitry Torokhov snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 24792e5b636bSDmitry Torokhov dev2->phys = priv->phys; 24802e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 24812e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 24821db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 24831da177e4SLinus Torvalds 24847b19ada2SJiri Slaby dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 248571bb21b6SMaxim Levitsky dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 248671bb21b6SMaxim Levitsky dev2->keybit[BIT_WORD(BTN_LEFT)] = 248771bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 24881da177e4SLinus Torvalds 248901d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 24907611392fSHans de Goede if (priv->flags & ALPS_DUALPOINT) 24917611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 24927611392fSHans de Goede 2493f42649e8SDmitry Torokhov if (input_register_device(priv->dev2)) 2494f42649e8SDmitry Torokhov goto init_fail; 24951da177e4SLinus Torvalds 24961da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 2497f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 24981da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 24991da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 250099df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 25011da177e4SLinus Torvalds 2502f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2503f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 2504f0d5c6f4SDmitry Torokhov 25059d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 25069d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 25079d720b34SPali Rohár 25081da177e4SLinus Torvalds return 0; 25091da177e4SLinus Torvalds 25101da177e4SLinus Torvalds init_fail: 2511f42649e8SDmitry Torokhov psmouse_reset(psmouse); 25122e5b636bSDmitry Torokhov input_free_device(dev2); 25131da177e4SLinus Torvalds kfree(priv); 25141e0c5b12SDmitry Torokhov psmouse->private = NULL; 25151da177e4SLinus Torvalds return -1; 25161da177e4SLinus Torvalds } 25171da177e4SLinus Torvalds 2518b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 25191da177e4SLinus Torvalds { 2520b5d6b851SKevin Cernekee struct alps_data dummy; 25211da177e4SLinus Torvalds 2522b5d6b851SKevin Cernekee if (alps_identify(psmouse, &dummy) < 0) 25231da177e4SLinus Torvalds return -1; 25241da177e4SLinus Torvalds 25251da177e4SLinus Torvalds if (set_properties) { 25261da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 2527b5d6b851SKevin Cernekee psmouse->name = dummy.flags & ALPS_DUALPOINT ? 2528968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 2529d7c13d34SDmitry Torokhov psmouse->model = dummy.proto_version; 25301da177e4SLinus Torvalds } 25311da177e4SLinus Torvalds return 0; 25321da177e4SLinus Torvalds } 25331da177e4SLinus Torvalds 2534