11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ALPS touchpad PS/2 mouse driver 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 51da177e4SLinus Torvalds * Copyright (c) 2003 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 391da177e4SLinus Torvalds static 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 }, 431da177e4SLinus Torvalds { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 441da177e4SLinus Torvalds { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 451da177e4SLinus Torvalds { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, 0 }, 461da177e4SLinus Torvalds { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 47c30b4c10SIvan Casado Ruiz { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ 481da177e4SLinus Torvalds { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, 491da177e4SLinus Torvalds { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */ 501da177e4SLinus Torvalds { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 51c30b4c10SIvan Casado Ruiz { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ 521da177e4SLinus Torvalds { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 531da177e4SLinus Torvalds { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 541da177e4SLinus Torvalds { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds /* 581da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 591da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 601da177e4SLinus Torvalds * isn't valid per PS/2 spec. 611da177e4SLinus Torvalds */ 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* 641da177e4SLinus Torvalds * ALPS abolute Mode - new format 651da177e4SLinus Torvalds * 661da177e4SLinus Torvalds * byte 0: 1 ? ? ? 1 ? ? ? 671da177e4SLinus Torvalds * byte 1: 0 x6 x5 x4 x3 x2 x1 x0 681da177e4SLinus Torvalds * byte 2: 0 x10 x9 x8 x7 ? fin ges 691da177e4SLinus Torvalds * byte 3: 0 y9 y8 y7 1 M R L 701da177e4SLinus Torvalds * byte 4: 0 y6 y5 y4 y3 y2 y1 y0 711da177e4SLinus Torvalds * byte 5: 0 z6 z5 z4 z3 z2 z1 z0 721da177e4SLinus Torvalds * 731da177e4SLinus Torvalds * ?'s can have different meanings on different models, 741da177e4SLinus Torvalds * such as wheel rotation, extra buttons, stick buttons 751da177e4SLinus Torvalds * on a dualpoint, etc. 761da177e4SLinus Torvalds */ 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs) 791da177e4SLinus Torvalds { 801da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 811da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 821da177e4SLinus Torvalds struct input_dev *dev = &psmouse->dev; 831da177e4SLinus Torvalds struct input_dev *dev2 = &priv->dev2; 841da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 85c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds input_regs(dev, regs); 881da177e4SLinus Torvalds 891da177e4SLinus Torvalds if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */ 901da177e4SLinus Torvalds input_report_key(dev2, BTN_LEFT, packet[0] & 1); 911da177e4SLinus Torvalds input_report_key(dev2, BTN_RIGHT, packet[0] & 2); 921da177e4SLinus Torvalds input_report_key(dev2, BTN_MIDDLE, packet[0] & 4); 931da177e4SLinus Torvalds input_report_rel(dev2, REL_X, 941da177e4SLinus Torvalds packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 951da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, 961da177e4SLinus Torvalds packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 971da177e4SLinus Torvalds input_sync(dev2); 981da177e4SLinus Torvalds return; 991da177e4SLinus Torvalds } 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds if (priv->i->flags & ALPS_OLDPROTO) { 1021da177e4SLinus Torvalds left = packet[2] & 0x08; 1031da177e4SLinus Torvalds right = packet[2] & 0x10; 1041da177e4SLinus Torvalds middle = 0; 1051da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 1061da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 1071da177e4SLinus Torvalds z = packet[5]; 1081da177e4SLinus Torvalds } else { 1091da177e4SLinus Torvalds left = packet[3] & 1; 1101da177e4SLinus Torvalds right = packet[3] & 2; 1111da177e4SLinus Torvalds middle = packet[3] & 4; 1121da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 1131da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 1141da177e4SLinus Torvalds z = packet[5]; 1151da177e4SLinus Torvalds } 1161da177e4SLinus Torvalds 117c30b4c10SIvan Casado Ruiz if (priv->i->flags & ALPS_FW_BK_1) { 118c30b4c10SIvan Casado Ruiz back = packet[2] & 4; 119c30b4c10SIvan Casado Ruiz forward = packet[0] & 0x10; 120c30b4c10SIvan Casado Ruiz } 121c30b4c10SIvan Casado Ruiz 122c30b4c10SIvan Casado Ruiz if (priv->i->flags & ALPS_FW_BK_2) { 123c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 124c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 125c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 126c30b4c10SIvan Casado Ruiz forward = back = 0; 127c30b4c10SIvan Casado Ruiz } 128c30b4c10SIvan Casado Ruiz 1291da177e4SLinus Torvalds ges = packet[2] & 1; 1301da177e4SLinus Torvalds fin = packet[2] & 2; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds input_report_key(dev, BTN_LEFT, left); 1331da177e4SLinus Torvalds input_report_key(dev, BTN_RIGHT, right); 1341da177e4SLinus Torvalds input_report_key(dev, BTN_MIDDLE, middle); 1351da177e4SLinus Torvalds 1361da177e4SLinus Torvalds if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) { 1371da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 1381da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 1391da177e4SLinus Torvalds input_sync(dev); 1401da177e4SLinus Torvalds input_sync(dev2); 1411da177e4SLinus Torvalds return; 1421da177e4SLinus Torvalds } 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 1451da177e4SLinus Torvalds if (ges && !fin) z = 40; 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds /* 1481da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 1491da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 1501da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 1511da177e4SLinus Torvalds */ 1521da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 1531da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1541da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1551da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 1561da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 1571da177e4SLinus Torvalds input_sync(dev); 1581da177e4SLinus Torvalds } 1591da177e4SLinus Torvalds priv->prev_fin = fin; 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds if (z > 30) input_report_key(dev, BTN_TOUCH, 1); 1621da177e4SLinus Torvalds if (z < 25) input_report_key(dev, BTN_TOUCH, 0); 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds if (z > 0) { 1651da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1661da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1671da177e4SLinus Torvalds } 1681da177e4SLinus Torvalds 1691da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 1701da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) 1731da177e4SLinus Torvalds input_report_rel(dev, REL_WHEEL, ((packet[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08)); 1741da177e4SLinus Torvalds 175c30b4c10SIvan Casado Ruiz if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 176c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 177c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 1781da177e4SLinus Torvalds } 1791da177e4SLinus Torvalds 1801da177e4SLinus Torvalds input_sync(dev); 1811da177e4SLinus Torvalds } 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *regs) 1841da177e4SLinus Torvalds { 1851da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1861da177e4SLinus Torvalds 1871da177e4SLinus Torvalds if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 1881da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 1891da177e4SLinus Torvalds alps_process_packet(psmouse, regs); 1901da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 1911da177e4SLinus Torvalds } 1921da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 1931da177e4SLinus Torvalds } 1941da177e4SLinus Torvalds 1951da177e4SLinus Torvalds if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0) 1961da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds /* Bytes 2 - 6 should have 0 in the highest bit */ 1991da177e4SLinus Torvalds if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 && 2001da177e4SLinus Torvalds (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) 2011da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds if (psmouse->pktcnt == 6) { 2041da177e4SLinus Torvalds alps_process_packet(psmouse, regs); 2051da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 2061da177e4SLinus Torvalds } 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 2091da177e4SLinus Torvalds } 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) 2121da177e4SLinus Torvalds { 2131da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2141da177e4SLinus Torvalds unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; 2151da177e4SLinus Torvalds unsigned char param[4]; 2161da177e4SLinus Torvalds int i; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds /* 2191da177e4SLinus Torvalds * First try "E6 report". 2201da177e4SLinus Torvalds * ALPS should return 0,0,10 or 0,0,100 2211da177e4SLinus Torvalds */ 2221da177e4SLinus Torvalds param[0] = 0; 2231da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2241da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2251da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2261da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) 2271da177e4SLinus Torvalds return NULL; 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2301da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2311da177e4SLinus Torvalds return NULL; 2321da177e4SLinus Torvalds 2331da177e4SLinus Torvalds dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) 2361da177e4SLinus Torvalds return NULL; 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvalds /* 2391da177e4SLinus Torvalds * Now try "E7 report". Allowed responses are in 2401da177e4SLinus Torvalds * alps_model_data[].signature 2411da177e4SLinus Torvalds */ 2421da177e4SLinus Torvalds param[0] = 0; 2431da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2441da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2451da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2461da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) 2471da177e4SLinus Torvalds return NULL; 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2501da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2511da177e4SLinus Torvalds return NULL; 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++); 2561da177e4SLinus Torvalds *version = (param[0] << 8) | (param[1] << 4) | i; 2571da177e4SLinus Torvalds 2581da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) 2591da177e4SLinus Torvalds if (!memcmp(param, alps_model_data[i].signature, sizeof(alps_model_data[i].signature))) 2601da177e4SLinus Torvalds return alps_model_data + i; 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds return NULL; 2631da177e4SLinus Torvalds } 2641da177e4SLinus Torvalds 2651da177e4SLinus Torvalds /* 2661da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 2671da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 2681da177e4SLinus Torvalds * I'd thought it would be other way around... 2691da177e4SLinus Torvalds */ 2701da177e4SLinus Torvalds static int alps_passthrough_mode(struct psmouse *psmouse, int enable) 2711da177e4SLinus Torvalds { 2721da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2731da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 2761da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2771da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2781da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 2791da177e4SLinus Torvalds return -1; 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 282c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds return 0; 2851da177e4SLinus Torvalds } 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds static int alps_absolute_mode(struct psmouse *psmouse) 2881da177e4SLinus Torvalds { 2891da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 2921da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2931da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2941da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2951da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2961da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 2971da177e4SLinus Torvalds return -1; 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds /* 3001da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 3011da177e4SLinus Torvalds * get in our way 3021da177e4SLinus Torvalds */ 3031da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 3041da177e4SLinus Torvalds } 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 3071da177e4SLinus Torvalds { 3081da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 3111da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3121da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3131da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3141da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 3151da177e4SLinus Torvalds return -1; 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvalds return 0; 3201da177e4SLinus Torvalds } 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds /* 3231da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 3241da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 3251da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 3261da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 3271da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 3281da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 3291da177e4SLinus Torvalds * we don't fiddle with it. 3301da177e4SLinus Torvalds */ 3311da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 3321da177e4SLinus Torvalds { 3331da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3341da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 3351da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 3361da177e4SLinus Torvalds unsigned char param[4]; 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 3391da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3401da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3411da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 3421da177e4SLinus Torvalds return -1; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3451da177e4SLinus Torvalds return -1; 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds return 0; 3481da177e4SLinus Torvalds } 3491da177e4SLinus Torvalds 3501da177e4SLinus Torvalds static int alps_reconnect(struct psmouse *psmouse) 3511da177e4SLinus Torvalds { 3521da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 3531da177e4SLinus Torvalds unsigned char param[4]; 3541da177e4SLinus Torvalds int version; 3551da177e4SLinus Torvalds 356f3a5c73dSDmitry Torokhov psmouse_reset(psmouse); 357f3a5c73dSDmitry Torokhov 3581da177e4SLinus Torvalds if (!(priv->i = alps_get_model(psmouse, &version))) 3591da177e4SLinus Torvalds return -1; 3601da177e4SLinus Torvalds 361b30dc120SDavid Moore if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1)) 3621da177e4SLinus Torvalds return -1; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3651da177e4SLinus Torvalds return -1; 3661da177e4SLinus Torvalds 367e41fb09bSDmitry Torokhov if (!(param[0] & 0x04)) 3681da177e4SLinus Torvalds alps_tap_mode(psmouse, 1); 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 3711da177e4SLinus Torvalds printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 3721da177e4SLinus Torvalds return -1; 3731da177e4SLinus Torvalds } 3741da177e4SLinus Torvalds 375b30dc120SDavid Moore if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0)) 3761da177e4SLinus Torvalds return -1; 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds return 0; 3791da177e4SLinus Torvalds } 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 3821da177e4SLinus Torvalds { 3831da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 3841da177e4SLinus Torvalds psmouse_reset(psmouse); 3851da177e4SLinus Torvalds input_unregister_device(&priv->dev2); 3861da177e4SLinus Torvalds kfree(priv); 3871da177e4SLinus Torvalds } 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 3901da177e4SLinus Torvalds { 3911da177e4SLinus Torvalds struct alps_data *priv; 3921da177e4SLinus Torvalds unsigned char param[4]; 3931da177e4SLinus Torvalds int version; 3941da177e4SLinus Torvalds 3951da177e4SLinus Torvalds psmouse->private = priv = kmalloc(sizeof(struct alps_data), GFP_KERNEL); 3961da177e4SLinus Torvalds if (!priv) 3971da177e4SLinus Torvalds goto init_fail; 3981da177e4SLinus Torvalds memset(priv, 0, sizeof(struct alps_data)); 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds if (!(priv->i = alps_get_model(psmouse, &version))) 4011da177e4SLinus Torvalds goto init_fail; 4021da177e4SLinus Torvalds 4031da177e4SLinus Torvalds if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1)) 4041da177e4SLinus Torvalds goto init_fail; 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) { 4071da177e4SLinus Torvalds printk(KERN_ERR "alps.c: touchpad status report request failed\n"); 4081da177e4SLinus Torvalds goto init_fail; 4091da177e4SLinus Torvalds } 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds if (param[0] & 0x04) { 41264b14d37SAndrew Morton printk(KERN_INFO "alps.c: Enabling hardware tapping\n"); 4131da177e4SLinus Torvalds if (alps_tap_mode(psmouse, 1)) 4141da177e4SLinus Torvalds printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n"); 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 4181da177e4SLinus Torvalds printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 4191da177e4SLinus Torvalds goto init_fail; 4201da177e4SLinus Torvalds } 4211da177e4SLinus Torvalds 4221da177e4SLinus Torvalds if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0)) 4231da177e4SLinus Torvalds goto init_fail; 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_KEY)] |= BIT(EV_KEY); 4261da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH); 4271da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER); 4281da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS); 4311da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0); 4321da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_Y, 0, 767, 0, 0); 4331da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0); 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) { 4361da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_REL)] |= BIT(EV_REL); 4371da177e4SLinus Torvalds psmouse->dev.relbit[LONG(REL_WHEEL)] |= BIT(REL_WHEEL); 4381da177e4SLinus Torvalds } 4391da177e4SLinus Torvalds 440c30b4c10SIvan Casado Ruiz if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 4411da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_FORWARD)] |= BIT(BTN_FORWARD); 4421da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK); 4431da177e4SLinus Torvalds } 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys); 4461da177e4SLinus Torvalds priv->dev2.phys = priv->phys; 4471da177e4SLinus Torvalds priv->dev2.name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; 4481da177e4SLinus Torvalds priv->dev2.id.bustype = BUS_I8042; 4491da177e4SLinus Torvalds priv->dev2.id.vendor = 0x0002; 4501da177e4SLinus Torvalds priv->dev2.id.product = PSMOUSE_ALPS; 4511da177e4SLinus Torvalds priv->dev2.id.version = 0x0000; 4521da177e4SLinus Torvalds 4531da177e4SLinus Torvalds priv->dev2.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); 4541da177e4SLinus Torvalds priv->dev2.relbit[LONG(REL_X)] |= BIT(REL_X) | BIT(REL_Y); 4551da177e4SLinus Torvalds priv->dev2.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds input_register_device(&priv->dev2); 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds printk(KERN_INFO "input: %s on %s\n", priv->dev2.name, psmouse->ps2dev.serio->phys); 4601da177e4SLinus Torvalds 4611da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 4621da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 4631da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 4641da177e4SLinus Torvalds psmouse->pktsize = 6; 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds return 0; 4671da177e4SLinus Torvalds 4681da177e4SLinus Torvalds init_fail: 4691da177e4SLinus Torvalds kfree(priv); 4701da177e4SLinus Torvalds return -1; 4711da177e4SLinus Torvalds } 4721da177e4SLinus Torvalds 4731da177e4SLinus Torvalds int alps_detect(struct psmouse *psmouse, int set_properties) 4741da177e4SLinus Torvalds { 4751da177e4SLinus Torvalds int version; 4761da177e4SLinus Torvalds struct alps_model_info *model; 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds if (!(model = alps_get_model(psmouse, &version))) 4791da177e4SLinus Torvalds return -1; 4801da177e4SLinus Torvalds 4811da177e4SLinus Torvalds if (set_properties) { 4821da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 483968ac842SDmitry Torokhov psmouse->name = model->flags & ALPS_DUALPOINT ? 484968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 4851da177e4SLinus Torvalds psmouse->model = version; 4861da177e4SLinus Torvalds } 4871da177e4SLinus Torvalds return 0; 4881da177e4SLinus Torvalds } 4891da177e4SLinus Torvalds 490