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> 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * ALPS detection, tap switching and status querying info is taken from 101da177e4SLinus Torvalds * tpconfig utility (by C. Scott Ananian and Bruce Kall). 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify it 131da177e4SLinus Torvalds * under the terms of the GNU General Public License version 2 as published by 141da177e4SLinus Torvalds * the Free Software Foundation. 151da177e4SLinus Torvalds */ 161da177e4SLinus Torvalds 171da177e4SLinus Torvalds #include <linux/input.h> 181da177e4SLinus Torvalds #include <linux/serio.h> 191da177e4SLinus Torvalds #include <linux/libps2.h> 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #include "psmouse.h" 221da177e4SLinus Torvalds #include "alps.h" 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #undef DEBUG 251da177e4SLinus Torvalds #ifdef DEBUG 261da177e4SLinus Torvalds #define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg) 271da177e4SLinus Torvalds #else 281da177e4SLinus Torvalds #define dbg(format, arg...) do {} while (0) 291da177e4SLinus Torvalds #endif 301da177e4SLinus Torvalds 3171bb21b6SMaxim Levitsky 3271bb21b6SMaxim Levitsky #define ALPS_OLDPROTO 0x01 /* old style input */ 3371bb21b6SMaxim Levitsky #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ 3471bb21b6SMaxim Levitsky #define ALPS_PASS 0x04 /* device has a pass-through port */ 3571bb21b6SMaxim Levitsky 3671bb21b6SMaxim Levitsky #define ALPS_WHEEL 0x08 /* hardware wheel present */ 3771bb21b6SMaxim Levitsky #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ 3871bb21b6SMaxim Levitsky #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ 3971bb21b6SMaxim Levitsky #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ 4071bb21b6SMaxim Levitsky 411da177e4SLinus Torvalds 42e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 43b75d1728SDmitry Torokhov { { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ 441da177e4SLinus Torvalds { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ 451da177e4SLinus Torvalds { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 461da177e4SLinus Torvalds { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 47f5e9c9caSLarry Finger { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */ 481da177e4SLinus Torvalds { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 491da177e4SLinus Torvalds { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 50ea54c96cSVojtech Pavlik { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ 511da177e4SLinus Torvalds { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 52c30b4c10SIvan Casado Ruiz { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ 531da177e4SLinus Torvalds { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, 54af27a69aSDmitry Torokhov { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ 55f493018eSDmitry Torokhov { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ 561da177e4SLinus Torvalds { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 57c30b4c10SIvan Casado Ruiz { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ 581da177e4SLinus Torvalds { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 591da177e4SLinus Torvalds { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 601da177e4SLinus Torvalds { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 610d46ed1cSElvis Pranskevichus { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude E6500 */ 6271bb21b6SMaxim Levitsky { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ 631da177e4SLinus Torvalds }; 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* 661da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 671da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 681da177e4SLinus Torvalds * isn't valid per PS/2 spec. 691da177e4SLinus Torvalds */ 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds /* 721da177e4SLinus Torvalds * ALPS abolute Mode - new format 731da177e4SLinus Torvalds * 741da177e4SLinus Torvalds * byte 0: 1 ? ? ? 1 ? ? ? 751da177e4SLinus Torvalds * byte 1: 0 x6 x5 x4 x3 x2 x1 x0 761da177e4SLinus Torvalds * byte 2: 0 x10 x9 x8 x7 ? fin ges 771da177e4SLinus Torvalds * byte 3: 0 y9 y8 y7 1 M R L 781da177e4SLinus Torvalds * byte 4: 0 y6 y5 y4 y3 y2 y1 y0 791da177e4SLinus Torvalds * byte 5: 0 z6 z5 z4 z3 z2 z1 z0 801da177e4SLinus Torvalds * 811da177e4SLinus Torvalds * ?'s can have different meanings on different models, 821da177e4SLinus Torvalds * such as wheel rotation, extra buttons, stick buttons 831da177e4SLinus Torvalds * on a dualpoint, etc. 841da177e4SLinus Torvalds */ 851da177e4SLinus Torvalds 867d12e780SDavid Howells static void alps_process_packet(struct psmouse *psmouse) 871da177e4SLinus Torvalds { 881da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 8971bb21b6SMaxim Levitsky const struct alps_model_info *model = priv->i; 901da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 912e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 922e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 931da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 94c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */ 971da177e4SLinus Torvalds input_report_key(dev2, BTN_LEFT, packet[0] & 1); 981da177e4SLinus Torvalds input_report_key(dev2, BTN_RIGHT, packet[0] & 2); 991da177e4SLinus Torvalds input_report_key(dev2, BTN_MIDDLE, packet[0] & 4); 1001da177e4SLinus Torvalds input_report_rel(dev2, REL_X, 1011da177e4SLinus Torvalds packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 1021da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, 1031da177e4SLinus Torvalds packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 1041da177e4SLinus Torvalds input_sync(dev2); 1051da177e4SLinus Torvalds return; 1061da177e4SLinus Torvalds } 1071da177e4SLinus Torvalds 10871bb21b6SMaxim Levitsky if (model->flags & ALPS_OLDPROTO) { 109d2f4012fSYotam Medini left = packet[2] & 0x10; 110d2f4012fSYotam Medini right = packet[2] & 0x08; 1111da177e4SLinus Torvalds middle = 0; 1121da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 1131da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 1141da177e4SLinus Torvalds z = packet[5]; 1151da177e4SLinus Torvalds } else { 1161da177e4SLinus Torvalds left = packet[3] & 1; 1171da177e4SLinus Torvalds right = packet[3] & 2; 1181da177e4SLinus Torvalds middle = packet[3] & 4; 1191da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 1201da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 1211da177e4SLinus Torvalds z = packet[5]; 1221da177e4SLinus Torvalds } 1231da177e4SLinus Torvalds 12471bb21b6SMaxim Levitsky if (model->flags & ALPS_FW_BK_1) { 1253c00bb96SLaszlo Kajan back = packet[0] & 0x10; 1263c00bb96SLaszlo Kajan forward = packet[2] & 4; 127c30b4c10SIvan Casado Ruiz } 128c30b4c10SIvan Casado Ruiz 12971bb21b6SMaxim Levitsky if (model->flags & ALPS_FW_BK_2) { 130c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 131c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 132c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 133c30b4c10SIvan Casado Ruiz forward = back = 0; 134c30b4c10SIvan Casado Ruiz } 135c30b4c10SIvan Casado Ruiz 1361da177e4SLinus Torvalds ges = packet[2] & 1; 1371da177e4SLinus Torvalds fin = packet[2] & 2; 1381da177e4SLinus Torvalds 13971bb21b6SMaxim Levitsky if ((model->flags & ALPS_DUALPOINT) && z == 127) { 1401da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 1411da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 142d7ed5d88SUlrich Dangel 143d7ed5d88SUlrich Dangel input_report_key(dev2, BTN_LEFT, left); 144d7ed5d88SUlrich Dangel input_report_key(dev2, BTN_RIGHT, right); 145d7ed5d88SUlrich Dangel input_report_key(dev2, BTN_MIDDLE, middle); 146d7ed5d88SUlrich Dangel 1471da177e4SLinus Torvalds input_sync(dev); 1481da177e4SLinus Torvalds input_sync(dev2); 1491da177e4SLinus Torvalds return; 1501da177e4SLinus Torvalds } 1511da177e4SLinus Torvalds 152d7ed5d88SUlrich Dangel input_report_key(dev, BTN_LEFT, left); 153d7ed5d88SUlrich Dangel input_report_key(dev, BTN_RIGHT, right); 154d7ed5d88SUlrich Dangel input_report_key(dev, BTN_MIDDLE, middle); 155d7ed5d88SUlrich Dangel 1561da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 15771bb21b6SMaxim Levitsky if (ges && !fin) 15871bb21b6SMaxim Levitsky z = 40; 1591da177e4SLinus Torvalds 1601da177e4SLinus Torvalds /* 1611da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 1621da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 1631da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 1641da177e4SLinus Torvalds */ 1651da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 1661da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1671da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1681da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 1691da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 1701da177e4SLinus Torvalds input_sync(dev); 1711da177e4SLinus Torvalds } 1721da177e4SLinus Torvalds priv->prev_fin = fin; 1731da177e4SLinus Torvalds 17471bb21b6SMaxim Levitsky if (z > 30) 17571bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 17671bb21b6SMaxim Levitsky if (z < 25) 17771bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds if (z > 0) { 1801da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1811da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1821da177e4SLinus Torvalds } 1831da177e4SLinus Torvalds 1841da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 1851da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 1861da177e4SLinus Torvalds 18771bb21b6SMaxim Levitsky if (model->flags & ALPS_WHEEL) 188e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 1891da177e4SLinus Torvalds 19071bb21b6SMaxim Levitsky if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 191c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 192c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 1931da177e4SLinus Torvalds } 1941da177e4SLinus Torvalds 19571bb21b6SMaxim Levitsky if (model->flags & ALPS_FOUR_BUTTONS) { 19671bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 19771bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 19871bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 19971bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 20071bb21b6SMaxim Levitsky } 20171bb21b6SMaxim Levitsky 2021da177e4SLinus Torvalds input_sync(dev); 2031da177e4SLinus Torvalds } 2041da177e4SLinus Torvalds 2057d12e780SDavid Howells static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 2061da177e4SLinus Torvalds { 2071da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 2081da177e4SLinus Torvalds 2091da177e4SLinus Torvalds if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 2101da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 2117d12e780SDavid Howells alps_process_packet(psmouse); 2121da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 2131da177e4SLinus Torvalds } 2141da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 2151da177e4SLinus Torvalds } 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0) 2181da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds /* Bytes 2 - 6 should have 0 in the highest bit */ 2211da177e4SLinus Torvalds if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 && 2221da177e4SLinus Torvalds (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) 2231da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds if (psmouse->pktcnt == 6) { 2267d12e780SDavid Howells alps_process_packet(psmouse); 2271da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 2281da177e4SLinus Torvalds } 2291da177e4SLinus Torvalds 2301da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 2311da177e4SLinus Torvalds } 2321da177e4SLinus Torvalds 233e38de678SHelge Deller static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) 2341da177e4SLinus Torvalds { 2351da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 236e38de678SHelge Deller static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; 2371da177e4SLinus Torvalds unsigned char param[4]; 2381da177e4SLinus Torvalds int i; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds /* 2411da177e4SLinus Torvalds * First try "E6 report". 2421da177e4SLinus Torvalds * ALPS should return 0,0,10 or 0,0,100 2431da177e4SLinus Torvalds */ 2441da177e4SLinus Torvalds param[0] = 0; 2451da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2461da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2471da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2481da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) 2491da177e4SLinus Torvalds return NULL; 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2521da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2531da177e4SLinus Torvalds return NULL; 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvalds if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) 2581da177e4SLinus Torvalds return NULL; 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds /* 2611da177e4SLinus Torvalds * Now try "E7 report". Allowed responses are in 2621da177e4SLinus Torvalds * alps_model_data[].signature 2631da177e4SLinus Torvalds */ 2641da177e4SLinus Torvalds param[0] = 0; 2651da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2661da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2671da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2681da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) 2691da177e4SLinus Torvalds return NULL; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2721da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2731da177e4SLinus Torvalds return NULL; 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2761da177e4SLinus Torvalds 2771e0c5b12SDmitry Torokhov if (version) { 2781e0c5b12SDmitry Torokhov for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++) 2791e0c5b12SDmitry Torokhov /* empty */; 2801da177e4SLinus Torvalds *version = (param[0] << 8) | (param[1] << 4) | i; 2811e0c5b12SDmitry Torokhov } 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) 2841e0c5b12SDmitry Torokhov if (!memcmp(param, alps_model_data[i].signature, 2851e0c5b12SDmitry Torokhov sizeof(alps_model_data[i].signature))) 2861da177e4SLinus Torvalds return alps_model_data + i; 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds return NULL; 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds /* 2921da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 2931da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 2941da177e4SLinus Torvalds * I'd thought it would be other way around... 2951da177e4SLinus Torvalds */ 296b7802c5cSDmitry Torokhov static int alps_passthrough_mode(struct psmouse *psmouse, bool enable) 2971da177e4SLinus Torvalds { 2981da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2991da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 3021da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 3031da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 3041da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 3051da177e4SLinus Torvalds return -1; 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 308c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds return 0; 3111da177e4SLinus Torvalds } 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds static int alps_absolute_mode(struct psmouse *psmouse) 3141da177e4SLinus Torvalds { 3151da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 3181da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3191da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3201da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3211da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3221da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 3231da177e4SLinus Torvalds return -1; 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds /* 3261da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 3271da177e4SLinus Torvalds * get in our way 3281da177e4SLinus Torvalds */ 3291da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 3301da177e4SLinus Torvalds } 3311da177e4SLinus Torvalds 3321da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 3331da177e4SLinus Torvalds { 3341da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 3371da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3381da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3391da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3401da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 3411da177e4SLinus Torvalds return -1; 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 3441da177e4SLinus Torvalds 3451da177e4SLinus Torvalds return 0; 3461da177e4SLinus Torvalds } 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds /* 3491da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 3501da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 3511da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 3521da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 3531da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 3541da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 3551da177e4SLinus Torvalds * we don't fiddle with it. 3561da177e4SLinus Torvalds */ 3571da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 3581da177e4SLinus Torvalds { 3591da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3601da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 3611da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 3621da177e4SLinus Torvalds unsigned char param[4]; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 3651da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3661da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3671da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 3681da177e4SLinus Torvalds return -1; 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3711da177e4SLinus Torvalds return -1; 3721da177e4SLinus Torvalds 3731da177e4SLinus Torvalds return 0; 3741da177e4SLinus Torvalds } 3751da177e4SLinus Torvalds 376f0d5c6f4SDmitry Torokhov /* 377f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 378f0d5c6f4SDmitry Torokhov * Used in resync. 379f0d5c6f4SDmitry Torokhov */ 380f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 381f0d5c6f4SDmitry Torokhov { 382f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 383f0d5c6f4SDmitry Torokhov unsigned char buf[6]; 384b7802c5cSDmitry Torokhov bool poll_failed; 385f0d5c6f4SDmitry Torokhov 386f0d5c6f4SDmitry Torokhov if (priv->i->flags & ALPS_PASS) 387b7802c5cSDmitry Torokhov alps_passthrough_mode(psmouse, true); 388f0d5c6f4SDmitry Torokhov 389f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 390f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 391f0d5c6f4SDmitry Torokhov 392f0d5c6f4SDmitry Torokhov if (priv->i->flags & ALPS_PASS) 393b7802c5cSDmitry Torokhov alps_passthrough_mode(psmouse, false); 394f0d5c6f4SDmitry Torokhov 395f0d5c6f4SDmitry Torokhov if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0) 396f0d5c6f4SDmitry Torokhov return -1; 397f0d5c6f4SDmitry Torokhov 398f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 399f0d5c6f4SDmitry Torokhov /* 400f0d5c6f4SDmitry Torokhov * Poll the track stick ... 401f0d5c6f4SDmitry Torokhov */ 402f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 403f0d5c6f4SDmitry Torokhov return -1; 404f0d5c6f4SDmitry Torokhov } 405f0d5c6f4SDmitry Torokhov 406f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 407f0d5c6f4SDmitry Torokhov return 0; 408f0d5c6f4SDmitry Torokhov } 409f0d5c6f4SDmitry Torokhov 41071bb21b6SMaxim Levitsky static int alps_hw_init(struct psmouse *psmouse) 4111da177e4SLinus Torvalds { 4121da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 41371bb21b6SMaxim Levitsky const struct alps_model_info *model = priv->i; 4141da177e4SLinus Torvalds 41571bb21b6SMaxim Levitsky if ((model->flags & ALPS_PASS) && 416b7802c5cSDmitry Torokhov alps_passthrough_mode(psmouse, true)) { 4171da177e4SLinus Torvalds return -1; 418b7802c5cSDmitry Torokhov } 4191da177e4SLinus Torvalds 420b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 4211e0c5b12SDmitry Torokhov printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n"); 4221da177e4SLinus Torvalds return -1; 423963f626dSPeter Osterlund } 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 4261e0c5b12SDmitry Torokhov printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 4271da177e4SLinus Torvalds return -1; 4281da177e4SLinus Torvalds } 4291da177e4SLinus Torvalds 43071bb21b6SMaxim Levitsky if ((model->flags & ALPS_PASS) && 431b7802c5cSDmitry Torokhov alps_passthrough_mode(psmouse, false)) { 4321da177e4SLinus Torvalds return -1; 433b7802c5cSDmitry Torokhov } 4341da177e4SLinus Torvalds 4351e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 4361e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 4371e0c5b12SDmitry Torokhov printk(KERN_ERR "alps.c: Failed to enable stream mode\n"); 4381e0c5b12SDmitry Torokhov return -1; 4391e0c5b12SDmitry Torokhov } 4401e0c5b12SDmitry Torokhov 4411e0c5b12SDmitry Torokhov return 0; 4421e0c5b12SDmitry Torokhov } 4431e0c5b12SDmitry Torokhov 4441e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 4451e0c5b12SDmitry Torokhov { 44671bb21b6SMaxim Levitsky const struct alps_model_info *model; 44771bb21b6SMaxim Levitsky 4481e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 4491e0c5b12SDmitry Torokhov 45071bb21b6SMaxim Levitsky model = alps_get_model(psmouse, NULL); 45171bb21b6SMaxim Levitsky if (!model) 4521e0c5b12SDmitry Torokhov return -1; 4531e0c5b12SDmitry Torokhov 45471bb21b6SMaxim Levitsky return alps_hw_init(psmouse); 4551da177e4SLinus Torvalds } 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 4581da177e4SLinus Torvalds { 4591da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 4602e5b636bSDmitry Torokhov 4611da177e4SLinus Torvalds psmouse_reset(psmouse); 4622e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 4631da177e4SLinus Torvalds kfree(priv); 4641da177e4SLinus Torvalds } 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 4671da177e4SLinus Torvalds { 4681da177e4SLinus Torvalds struct alps_data *priv; 46971bb21b6SMaxim Levitsky const struct alps_model_info *model; 4702e5b636bSDmitry Torokhov struct input_dev *dev1 = psmouse->dev, *dev2; 4711da177e4SLinus Torvalds int version; 4721da177e4SLinus Torvalds 473f42649e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 4742e5b636bSDmitry Torokhov dev2 = input_allocate_device(); 4752e5b636bSDmitry Torokhov if (!priv || !dev2) 4761da177e4SLinus Torvalds goto init_fail; 4772e5b636bSDmitry Torokhov 4782e5b636bSDmitry Torokhov priv->dev2 = dev2; 4791e0c5b12SDmitry Torokhov psmouse->private = priv; 4801da177e4SLinus Torvalds 48171bb21b6SMaxim Levitsky model = alps_get_model(psmouse, &version); 48271bb21b6SMaxim Levitsky if (!model) 48371bb21b6SMaxim Levitsky goto init_fail; 48471bb21b6SMaxim Levitsky 48571bb21b6SMaxim Levitsky priv->i = model; 48671bb21b6SMaxim Levitsky 48771bb21b6SMaxim Levitsky if (alps_hw_init(psmouse)) 4881da177e4SLinus Torvalds goto init_fail; 4891da177e4SLinus Torvalds 4907105d2eaSDmitry Torokhov /* 4917105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 4927105d2eaSDmitry Torokhov * is not a relative device. 4937105d2eaSDmitry Torokhov */ 4947105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 4957105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 4967105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 4977105d2eaSDmitry Torokhov 4987105d2eaSDmitry Torokhov /* 4997105d2eaSDmitry Torokhov * Now set up our capabilities. 5007105d2eaSDmitry Torokhov */ 5017b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 5027b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 5037b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 50471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 50571bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 5061da177e4SLinus Torvalds 5077b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 5082e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0); 5092e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0); 5102e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 5111da177e4SLinus Torvalds 51271bb21b6SMaxim Levitsky if (model->flags & ALPS_WHEEL) { 5137b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 5147b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 5151da177e4SLinus Torvalds } 5161da177e4SLinus Torvalds 51771bb21b6SMaxim Levitsky if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 5187b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 5197b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 5201da177e4SLinus Torvalds } 5211da177e4SLinus Torvalds 52271bb21b6SMaxim Levitsky if (model->flags & ALPS_FOUR_BUTTONS) { 52371bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 52471bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 52571bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 52671bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 52771bb21b6SMaxim Levitsky } else { 52871bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 52971bb21b6SMaxim Levitsky } 53071bb21b6SMaxim Levitsky 53108ffce45SDmitry Torokhov snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 5322e5b636bSDmitry Torokhov dev2->phys = priv->phys; 53371bb21b6SMaxim Levitsky dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; 5342e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 5352e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 5362e5b636bSDmitry Torokhov dev2->id.product = PSMOUSE_ALPS; 5372e5b636bSDmitry Torokhov dev2->id.version = 0x0000; 5381db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 5391da177e4SLinus Torvalds 5407b19ada2SJiri Slaby dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 54171bb21b6SMaxim Levitsky dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 54271bb21b6SMaxim Levitsky dev2->keybit[BIT_WORD(BTN_LEFT)] = 54371bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 5441da177e4SLinus Torvalds 545f42649e8SDmitry Torokhov if (input_register_device(priv->dev2)) 546f42649e8SDmitry Torokhov goto init_fail; 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 549f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 5501da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 5511da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 5521da177e4SLinus Torvalds psmouse->pktsize = 6; 5531da177e4SLinus Torvalds 554f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 555f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 556f0d5c6f4SDmitry Torokhov 5571da177e4SLinus Torvalds return 0; 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds init_fail: 560f42649e8SDmitry Torokhov psmouse_reset(psmouse); 5612e5b636bSDmitry Torokhov input_free_device(dev2); 5621da177e4SLinus Torvalds kfree(priv); 5631e0c5b12SDmitry Torokhov psmouse->private = NULL; 5641da177e4SLinus Torvalds return -1; 5651da177e4SLinus Torvalds } 5661da177e4SLinus Torvalds 567b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 5681da177e4SLinus Torvalds { 5691da177e4SLinus Torvalds int version; 570e38de678SHelge Deller const struct alps_model_info *model; 5711da177e4SLinus Torvalds 572f42649e8SDmitry Torokhov model = alps_get_model(psmouse, &version); 573f42649e8SDmitry Torokhov if (!model) 5741da177e4SLinus Torvalds return -1; 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds if (set_properties) { 5771da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 578968ac842SDmitry Torokhov psmouse->name = model->flags & ALPS_DUALPOINT ? 579968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 5801da177e4SLinus Torvalds psmouse->model = version; 5811da177e4SLinus Torvalds } 5821da177e4SLinus Torvalds return 0; 5831da177e4SLinus Torvalds } 5841da177e4SLinus Torvalds 585