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 311da177e4SLinus Torvalds #define ALPS_DUALPOINT 0x01 321da177e4SLinus Torvalds #define ALPS_WHEEL 0x02 33c30b4c10SIvan Casado Ruiz #define ALPS_FW_BK_1 0x04 341da177e4SLinus Torvalds #define ALPS_4BTN 0x08 351da177e4SLinus Torvalds #define ALPS_OLDPROTO 0x10 361da177e4SLinus Torvalds #define ALPS_PASS 0x20 37c30b4c10SIvan Casado Ruiz #define ALPS_FW_BK_2 0x40 381da177e4SLinus Torvalds 39e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 401da177e4SLinus Torvalds { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ 411da177e4SLinus Torvalds { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 421da177e4SLinus Torvalds { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 43f5e9c9caSLarry Finger { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */ 441da177e4SLinus Torvalds { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 451da177e4SLinus Torvalds { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 46ea54c96cSVojtech Pavlik { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ 471da177e4SLinus Torvalds { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 48c30b4c10SIvan Casado Ruiz { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ 491da177e4SLinus Torvalds { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, 501da177e4SLinus Torvalds { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */ 51f493018eSDmitry Torokhov { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ 521da177e4SLinus Torvalds { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 53c30b4c10SIvan Casado Ruiz { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ 541da177e4SLinus Torvalds { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 551da177e4SLinus Torvalds { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 561da177e4SLinus Torvalds { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 570d46ed1cSElvis Pranskevichus { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude E6500 */ 58fb491610SDmitry Torokhov { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 } /* Dell Vostro 1400 */ 591da177e4SLinus Torvalds }; 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds /* 621da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 631da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 641da177e4SLinus Torvalds * isn't valid per PS/2 spec. 651da177e4SLinus Torvalds */ 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds /* 681da177e4SLinus Torvalds * ALPS abolute Mode - new format 691da177e4SLinus Torvalds * 701da177e4SLinus Torvalds * byte 0: 1 ? ? ? 1 ? ? ? 711da177e4SLinus Torvalds * byte 1: 0 x6 x5 x4 x3 x2 x1 x0 721da177e4SLinus Torvalds * byte 2: 0 x10 x9 x8 x7 ? fin ges 731da177e4SLinus Torvalds * byte 3: 0 y9 y8 y7 1 M R L 741da177e4SLinus Torvalds * byte 4: 0 y6 y5 y4 y3 y2 y1 y0 751da177e4SLinus Torvalds * byte 5: 0 z6 z5 z4 z3 z2 z1 z0 761da177e4SLinus Torvalds * 771da177e4SLinus Torvalds * ?'s can have different meanings on different models, 781da177e4SLinus Torvalds * such as wheel rotation, extra buttons, stick buttons 791da177e4SLinus Torvalds * on a dualpoint, etc. 801da177e4SLinus Torvalds */ 811da177e4SLinus Torvalds 827d12e780SDavid Howells static void alps_process_packet(struct psmouse *psmouse) 831da177e4SLinus Torvalds { 841da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 851da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 862e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 872e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 881da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 89c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */ 921da177e4SLinus Torvalds input_report_key(dev2, BTN_LEFT, packet[0] & 1); 931da177e4SLinus Torvalds input_report_key(dev2, BTN_RIGHT, packet[0] & 2); 941da177e4SLinus Torvalds input_report_key(dev2, BTN_MIDDLE, packet[0] & 4); 951da177e4SLinus Torvalds input_report_rel(dev2, REL_X, 961da177e4SLinus Torvalds packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 971da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, 981da177e4SLinus Torvalds packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 991da177e4SLinus Torvalds input_sync(dev2); 1001da177e4SLinus Torvalds return; 1011da177e4SLinus Torvalds } 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds if (priv->i->flags & ALPS_OLDPROTO) { 104d2f4012fSYotam Medini left = packet[2] & 0x10; 105d2f4012fSYotam Medini right = packet[2] & 0x08; 1061da177e4SLinus Torvalds middle = 0; 1071da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 1081da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 1091da177e4SLinus Torvalds z = packet[5]; 1101da177e4SLinus Torvalds } else { 1111da177e4SLinus Torvalds left = packet[3] & 1; 1121da177e4SLinus Torvalds right = packet[3] & 2; 1131da177e4SLinus Torvalds middle = packet[3] & 4; 1141da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 1151da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 1161da177e4SLinus Torvalds z = packet[5]; 1171da177e4SLinus Torvalds } 1181da177e4SLinus Torvalds 119c30b4c10SIvan Casado Ruiz if (priv->i->flags & ALPS_FW_BK_1) { 1203c00bb96SLaszlo Kajan back = packet[0] & 0x10; 1213c00bb96SLaszlo Kajan forward = packet[2] & 4; 122c30b4c10SIvan Casado Ruiz } 123c30b4c10SIvan Casado Ruiz 124c30b4c10SIvan Casado Ruiz if (priv->i->flags & ALPS_FW_BK_2) { 125c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 126c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 127c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 128c30b4c10SIvan Casado Ruiz forward = back = 0; 129c30b4c10SIvan Casado Ruiz } 130c30b4c10SIvan Casado Ruiz 1311da177e4SLinus Torvalds ges = packet[2] & 1; 1321da177e4SLinus Torvalds fin = packet[2] & 2; 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds input_report_key(dev, BTN_LEFT, left); 1351da177e4SLinus Torvalds input_report_key(dev, BTN_RIGHT, right); 1361da177e4SLinus Torvalds input_report_key(dev, BTN_MIDDLE, middle); 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) { 1391da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 1401da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 1411da177e4SLinus Torvalds input_sync(dev); 1421da177e4SLinus Torvalds input_sync(dev2); 1431da177e4SLinus Torvalds return; 1441da177e4SLinus Torvalds } 1451da177e4SLinus Torvalds 1461da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 1471da177e4SLinus Torvalds if (ges && !fin) z = 40; 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds /* 1501da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 1511da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 1521da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 1531da177e4SLinus Torvalds */ 1541da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 1551da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1561da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1571da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 1581da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 1591da177e4SLinus Torvalds input_sync(dev); 1601da177e4SLinus Torvalds } 1611da177e4SLinus Torvalds priv->prev_fin = fin; 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds if (z > 30) input_report_key(dev, BTN_TOUCH, 1); 1641da177e4SLinus Torvalds if (z < 25) input_report_key(dev, BTN_TOUCH, 0); 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds if (z > 0) { 1671da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1681da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1691da177e4SLinus Torvalds } 1701da177e4SLinus Torvalds 1711da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 1721da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) 175e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 1761da177e4SLinus Torvalds 177c30b4c10SIvan Casado Ruiz if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 178c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 179c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 1801da177e4SLinus Torvalds } 1811da177e4SLinus Torvalds 1821da177e4SLinus Torvalds input_sync(dev); 1831da177e4SLinus Torvalds } 1841da177e4SLinus Torvalds 1857d12e780SDavid Howells static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 1861da177e4SLinus Torvalds { 1871da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1881da177e4SLinus Torvalds 1891da177e4SLinus Torvalds if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 1901da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 1917d12e780SDavid Howells alps_process_packet(psmouse); 1921da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 1931da177e4SLinus Torvalds } 1941da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 1951da177e4SLinus Torvalds } 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0) 1981da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 1991da177e4SLinus Torvalds 2001da177e4SLinus Torvalds /* Bytes 2 - 6 should have 0 in the highest bit */ 2011da177e4SLinus Torvalds if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 && 2021da177e4SLinus Torvalds (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) 2031da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvalds if (psmouse->pktcnt == 6) { 2067d12e780SDavid Howells alps_process_packet(psmouse); 2071da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 2081da177e4SLinus Torvalds } 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 2111da177e4SLinus Torvalds } 2121da177e4SLinus Torvalds 213e38de678SHelge Deller static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) 2141da177e4SLinus Torvalds { 2151da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 216e38de678SHelge Deller static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; 2171da177e4SLinus Torvalds unsigned char param[4]; 2181da177e4SLinus Torvalds int i; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds /* 2211da177e4SLinus Torvalds * First try "E6 report". 2221da177e4SLinus Torvalds * ALPS should return 0,0,10 or 0,0,100 2231da177e4SLinus Torvalds */ 2241da177e4SLinus Torvalds param[0] = 0; 2251da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2261da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2271da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2281da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) 2291da177e4SLinus Torvalds return NULL; 2301da177e4SLinus Torvalds 2311da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2321da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2331da177e4SLinus Torvalds return NULL; 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) 2381da177e4SLinus Torvalds return NULL; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds /* 2411da177e4SLinus Torvalds * Now try "E7 report". Allowed responses are in 2421da177e4SLinus Torvalds * alps_model_data[].signature 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_SETSCALE21) || 2471da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2481da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) 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("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2561da177e4SLinus Torvalds 2571e0c5b12SDmitry Torokhov if (version) { 2581e0c5b12SDmitry Torokhov for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++) 2591e0c5b12SDmitry Torokhov /* empty */; 2601da177e4SLinus Torvalds *version = (param[0] << 8) | (param[1] << 4) | i; 2611e0c5b12SDmitry Torokhov } 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) 2641e0c5b12SDmitry Torokhov if (!memcmp(param, alps_model_data[i].signature, 2651e0c5b12SDmitry Torokhov sizeof(alps_model_data[i].signature))) 2661da177e4SLinus Torvalds return alps_model_data + i; 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds return NULL; 2691da177e4SLinus Torvalds } 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds /* 2721da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 2731da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 2741da177e4SLinus Torvalds * I'd thought it would be other way around... 2751da177e4SLinus Torvalds */ 2761da177e4SLinus Torvalds static int alps_passthrough_mode(struct psmouse *psmouse, int enable) 2771da177e4SLinus Torvalds { 2781da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2791da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 2821da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2831da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2841da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 2851da177e4SLinus Torvalds return -1; 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 288c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds return 0; 2911da177e4SLinus Torvalds } 2921da177e4SLinus Torvalds 2931da177e4SLinus Torvalds static int alps_absolute_mode(struct psmouse *psmouse) 2941da177e4SLinus Torvalds { 2951da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2961da177e4SLinus Torvalds 2971da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 2981da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2991da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3001da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3011da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3021da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 3031da177e4SLinus Torvalds return -1; 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds /* 3061da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 3071da177e4SLinus Torvalds * get in our way 3081da177e4SLinus Torvalds */ 3091da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 3101da177e4SLinus Torvalds } 3111da177e4SLinus Torvalds 3121da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 3131da177e4SLinus Torvalds { 3141da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3151da177e4SLinus Torvalds 3161da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 3171da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3181da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3191da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3201da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 3211da177e4SLinus Torvalds return -1; 3221da177e4SLinus Torvalds 3231da177e4SLinus Torvalds dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds return 0; 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds /* 3291da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 3301da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 3311da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 3321da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 3331da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 3341da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 3351da177e4SLinus Torvalds * we don't fiddle with it. 3361da177e4SLinus Torvalds */ 3371da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 3381da177e4SLinus Torvalds { 3391da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3401da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 3411da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 3421da177e4SLinus Torvalds unsigned char param[4]; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 3451da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3461da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3471da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 3481da177e4SLinus Torvalds return -1; 3491da177e4SLinus Torvalds 3501da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3511da177e4SLinus Torvalds return -1; 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds return 0; 3541da177e4SLinus Torvalds } 3551da177e4SLinus Torvalds 356f0d5c6f4SDmitry Torokhov /* 357f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 358f0d5c6f4SDmitry Torokhov * Used in resync. 359f0d5c6f4SDmitry Torokhov */ 360f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 361f0d5c6f4SDmitry Torokhov { 362f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 363f0d5c6f4SDmitry Torokhov unsigned char buf[6]; 364f0d5c6f4SDmitry Torokhov int poll_failed; 365f0d5c6f4SDmitry Torokhov 366f0d5c6f4SDmitry Torokhov if (priv->i->flags & ALPS_PASS) 367f0d5c6f4SDmitry Torokhov alps_passthrough_mode(psmouse, 1); 368f0d5c6f4SDmitry Torokhov 369f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 370f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 371f0d5c6f4SDmitry Torokhov 372f0d5c6f4SDmitry Torokhov if (priv->i->flags & ALPS_PASS) 373f0d5c6f4SDmitry Torokhov alps_passthrough_mode(psmouse, 0); 374f0d5c6f4SDmitry Torokhov 375f0d5c6f4SDmitry Torokhov if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0) 376f0d5c6f4SDmitry Torokhov return -1; 377f0d5c6f4SDmitry Torokhov 378f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 379f0d5c6f4SDmitry Torokhov /* 380f0d5c6f4SDmitry Torokhov * Poll the track stick ... 381f0d5c6f4SDmitry Torokhov */ 382f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 383f0d5c6f4SDmitry Torokhov return -1; 384f0d5c6f4SDmitry Torokhov } 385f0d5c6f4SDmitry Torokhov 386f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 387f0d5c6f4SDmitry Torokhov return 0; 388f0d5c6f4SDmitry Torokhov } 389f0d5c6f4SDmitry Torokhov 3901e0c5b12SDmitry Torokhov static int alps_hw_init(struct psmouse *psmouse, int *version) 3911da177e4SLinus Torvalds { 3921da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 3931da177e4SLinus Torvalds 3941e0c5b12SDmitry Torokhov priv->i = alps_get_model(psmouse, version); 3951e0c5b12SDmitry Torokhov if (!priv->i) 3961da177e4SLinus Torvalds return -1; 3971da177e4SLinus Torvalds 398b30dc120SDavid Moore if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1)) 3991da177e4SLinus Torvalds return -1; 4001da177e4SLinus Torvalds 401963f626dSPeter Osterlund if (alps_tap_mode(psmouse, 1)) { 4021e0c5b12SDmitry Torokhov printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n"); 4031da177e4SLinus Torvalds return -1; 404963f626dSPeter Osterlund } 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 4071e0c5b12SDmitry Torokhov printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 4081da177e4SLinus Torvalds return -1; 4091da177e4SLinus Torvalds } 4101da177e4SLinus Torvalds 411b30dc120SDavid Moore if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0)) 4121da177e4SLinus Torvalds return -1; 4131da177e4SLinus Torvalds 4141e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 4151e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 4161e0c5b12SDmitry Torokhov printk(KERN_ERR "alps.c: Failed to enable stream mode\n"); 4171e0c5b12SDmitry Torokhov return -1; 4181e0c5b12SDmitry Torokhov } 4191e0c5b12SDmitry Torokhov 4201e0c5b12SDmitry Torokhov return 0; 4211e0c5b12SDmitry Torokhov } 4221e0c5b12SDmitry Torokhov 4231e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 4241e0c5b12SDmitry Torokhov { 4251e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 4261e0c5b12SDmitry Torokhov 4271e0c5b12SDmitry Torokhov if (alps_hw_init(psmouse, NULL)) 4281e0c5b12SDmitry Torokhov return -1; 4291e0c5b12SDmitry Torokhov 4301da177e4SLinus Torvalds return 0; 4311da177e4SLinus Torvalds } 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 4341da177e4SLinus Torvalds { 4351da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 4362e5b636bSDmitry Torokhov 4371da177e4SLinus Torvalds psmouse_reset(psmouse); 4382e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 4391da177e4SLinus Torvalds kfree(priv); 4401da177e4SLinus Torvalds } 4411da177e4SLinus Torvalds 4421da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 4431da177e4SLinus Torvalds { 4441da177e4SLinus Torvalds struct alps_data *priv; 4452e5b636bSDmitry Torokhov struct input_dev *dev1 = psmouse->dev, *dev2; 4461da177e4SLinus Torvalds int version; 4471da177e4SLinus Torvalds 448f42649e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 4492e5b636bSDmitry Torokhov dev2 = input_allocate_device(); 4502e5b636bSDmitry Torokhov if (!priv || !dev2) 4511da177e4SLinus Torvalds goto init_fail; 4522e5b636bSDmitry Torokhov 4532e5b636bSDmitry Torokhov priv->dev2 = dev2; 4541e0c5b12SDmitry Torokhov psmouse->private = priv; 4551da177e4SLinus Torvalds 4561e0c5b12SDmitry Torokhov if (alps_hw_init(psmouse, &version)) 4571da177e4SLinus Torvalds goto init_fail; 4581da177e4SLinus Torvalds 4597b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 4607b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 4617b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 4627b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) | 4637b19ada2SJiri Slaby BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 4641da177e4SLinus Torvalds 4657b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 4662e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0); 4672e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0); 4682e5b636bSDmitry Torokhov input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) { 4717b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 4727b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 4731da177e4SLinus Torvalds } 4741da177e4SLinus Torvalds 475c30b4c10SIvan Casado Ruiz if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 4767b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 4777b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 4781da177e4SLinus Torvalds } 4791da177e4SLinus Torvalds 48008ffce45SDmitry Torokhov snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 4812e5b636bSDmitry Torokhov dev2->phys = priv->phys; 4822e5b636bSDmitry Torokhov dev2->name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; 4832e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 4842e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 4852e5b636bSDmitry Torokhov dev2->id.product = PSMOUSE_ALPS; 4862e5b636bSDmitry Torokhov dev2->id.version = 0x0000; 4871db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 4881da177e4SLinus Torvalds 4897b19ada2SJiri Slaby dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 4907b19ada2SJiri Slaby dev2->relbit[BIT_WORD(REL_X)] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y); 4917b19ada2SJiri Slaby dev2->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) | 4927b19ada2SJiri Slaby BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 4931da177e4SLinus Torvalds 494f42649e8SDmitry Torokhov if (input_register_device(priv->dev2)) 495f42649e8SDmitry Torokhov goto init_fail; 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 498f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 4991da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 5001da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 5011da177e4SLinus Torvalds psmouse->pktsize = 6; 5021da177e4SLinus Torvalds 503f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 504f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 505f0d5c6f4SDmitry Torokhov 5061da177e4SLinus Torvalds return 0; 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds init_fail: 509f42649e8SDmitry Torokhov psmouse_reset(psmouse); 5102e5b636bSDmitry Torokhov input_free_device(dev2); 5111da177e4SLinus Torvalds kfree(priv); 5121e0c5b12SDmitry Torokhov psmouse->private = NULL; 5131da177e4SLinus Torvalds return -1; 5141da177e4SLinus Torvalds } 5151da177e4SLinus Torvalds 5161da177e4SLinus Torvalds int alps_detect(struct psmouse *psmouse, int set_properties) 5171da177e4SLinus Torvalds { 5181da177e4SLinus Torvalds int version; 519e38de678SHelge Deller const struct alps_model_info *model; 5201da177e4SLinus Torvalds 521f42649e8SDmitry Torokhov model = alps_get_model(psmouse, &version); 522f42649e8SDmitry Torokhov if (!model) 5231da177e4SLinus Torvalds return -1; 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds if (set_properties) { 5261da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 527968ac842SDmitry Torokhov psmouse->name = model->flags & ALPS_DUALPOINT ? 528968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 5291da177e4SLinus Torvalds psmouse->model = version; 5301da177e4SLinus Torvalds } 5311da177e4SLinus Torvalds return 0; 5321da177e4SLinus Torvalds } 5331da177e4SLinus Torvalds 534