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 331da177e4SLinus Torvalds #define ALPS_FW_BK 0x04 341da177e4SLinus Torvalds #define ALPS_4BTN 0x08 351da177e4SLinus Torvalds #define ALPS_OLDPROTO 0x10 361da177e4SLinus Torvalds #define ALPS_PASS 0x20 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds static struct alps_model_info alps_model_data[] = { 391da177e4SLinus Torvalds { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ 401da177e4SLinus Torvalds { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 411da177e4SLinus Torvalds { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 421da177e4SLinus Torvalds { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 431da177e4SLinus Torvalds { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 441da177e4SLinus Torvalds { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, 0 }, 451da177e4SLinus Torvalds { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 461da177e4SLinus Torvalds { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK }, /* NEC Versa L320 */ 471da177e4SLinus Torvalds { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, 481da177e4SLinus Torvalds { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */ 491da177e4SLinus Torvalds { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, 501da177e4SLinus Torvalds { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, 511da177e4SLinus Torvalds { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 521da177e4SLinus Torvalds { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 531da177e4SLinus Torvalds { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 541da177e4SLinus Torvalds }; 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds /* 571da177e4SLinus Torvalds * XXX - this entry is suspicious. First byte has zero lower nibble, 581da177e4SLinus Torvalds * which is what a normal mouse would report. Also, the value 0x0e 591da177e4SLinus Torvalds * isn't valid per PS/2 spec. 601da177e4SLinus Torvalds */ 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds /* 631da177e4SLinus Torvalds * ALPS abolute Mode - new format 641da177e4SLinus Torvalds * 651da177e4SLinus Torvalds * byte 0: 1 ? ? ? 1 ? ? ? 661da177e4SLinus Torvalds * byte 1: 0 x6 x5 x4 x3 x2 x1 x0 671da177e4SLinus Torvalds * byte 2: 0 x10 x9 x8 x7 ? fin ges 681da177e4SLinus Torvalds * byte 3: 0 y9 y8 y7 1 M R L 691da177e4SLinus Torvalds * byte 4: 0 y6 y5 y4 y3 y2 y1 y0 701da177e4SLinus Torvalds * byte 5: 0 z6 z5 z4 z3 z2 z1 z0 711da177e4SLinus Torvalds * 721da177e4SLinus Torvalds * ?'s can have different meanings on different models, 731da177e4SLinus Torvalds * such as wheel rotation, extra buttons, stick buttons 741da177e4SLinus Torvalds * on a dualpoint, etc. 751da177e4SLinus Torvalds */ 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs) 781da177e4SLinus Torvalds { 791da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 801da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 811da177e4SLinus Torvalds struct input_dev *dev = &psmouse->dev; 821da177e4SLinus Torvalds struct input_dev *dev2 = &priv->dev2; 831da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds input_regs(dev, regs); 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */ 881da177e4SLinus Torvalds input_report_key(dev2, BTN_LEFT, packet[0] & 1); 891da177e4SLinus Torvalds input_report_key(dev2, BTN_RIGHT, packet[0] & 2); 901da177e4SLinus Torvalds input_report_key(dev2, BTN_MIDDLE, packet[0] & 4); 911da177e4SLinus Torvalds input_report_rel(dev2, REL_X, 921da177e4SLinus Torvalds packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 931da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, 941da177e4SLinus Torvalds packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 951da177e4SLinus Torvalds input_sync(dev2); 961da177e4SLinus Torvalds return; 971da177e4SLinus Torvalds } 981da177e4SLinus Torvalds 991da177e4SLinus Torvalds if (priv->i->flags & ALPS_OLDPROTO) { 1001da177e4SLinus Torvalds left = packet[2] & 0x08; 1011da177e4SLinus Torvalds right = packet[2] & 0x10; 1021da177e4SLinus Torvalds middle = 0; 1031da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 1041da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 1051da177e4SLinus Torvalds z = packet[5]; 1061da177e4SLinus Torvalds } else { 1071da177e4SLinus Torvalds left = packet[3] & 1; 1081da177e4SLinus Torvalds right = packet[3] & 2; 1091da177e4SLinus Torvalds middle = packet[3] & 4; 1101da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 1111da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 1121da177e4SLinus Torvalds z = packet[5]; 1131da177e4SLinus Torvalds } 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds ges = packet[2] & 1; 1161da177e4SLinus Torvalds fin = packet[2] & 2; 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds input_report_key(dev, BTN_LEFT, left); 1191da177e4SLinus Torvalds input_report_key(dev, BTN_RIGHT, right); 1201da177e4SLinus Torvalds input_report_key(dev, BTN_MIDDLE, middle); 1211da177e4SLinus Torvalds 1221da177e4SLinus Torvalds if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) { 1231da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 1241da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 1251da177e4SLinus Torvalds input_sync(dev); 1261da177e4SLinus Torvalds input_sync(dev2); 1271da177e4SLinus Torvalds return; 1281da177e4SLinus Torvalds } 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 1311da177e4SLinus Torvalds if (ges && !fin) z = 40; 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds /* 1341da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 1351da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 1361da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 1371da177e4SLinus Torvalds */ 1381da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 1391da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1401da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1411da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 1421da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 1431da177e4SLinus Torvalds input_sync(dev); 1441da177e4SLinus Torvalds } 1451da177e4SLinus Torvalds priv->prev_fin = fin; 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds if (z > 30) input_report_key(dev, BTN_TOUCH, 1); 1481da177e4SLinus Torvalds if (z < 25) input_report_key(dev, BTN_TOUCH, 0); 1491da177e4SLinus Torvalds 1501da177e4SLinus Torvalds if (z > 0) { 1511da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 1521da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 1531da177e4SLinus Torvalds } 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 1561da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 1571da177e4SLinus Torvalds 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) 1601da177e4SLinus Torvalds input_report_rel(dev, REL_WHEEL, ((packet[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08)); 1611da177e4SLinus Torvalds 1621da177e4SLinus Torvalds if (priv->i->flags & ALPS_FW_BK) { 1631da177e4SLinus Torvalds input_report_key(dev, BTN_FORWARD, packet[0] & 0x10); 1641da177e4SLinus Torvalds input_report_key(dev, BTN_BACK, packet[2] & 0x04); 1651da177e4SLinus Torvalds } 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds input_sync(dev); 1681da177e4SLinus Torvalds } 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *regs) 1711da177e4SLinus Torvalds { 1721da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 1751da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 1761da177e4SLinus Torvalds alps_process_packet(psmouse, regs); 1771da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 1781da177e4SLinus Torvalds } 1791da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 1801da177e4SLinus Torvalds } 1811da177e4SLinus Torvalds 1821da177e4SLinus Torvalds if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0) 1831da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 1841da177e4SLinus Torvalds 1851da177e4SLinus Torvalds /* Bytes 2 - 6 should have 0 in the highest bit */ 1861da177e4SLinus Torvalds if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 && 1871da177e4SLinus Torvalds (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) 1881da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 1891da177e4SLinus Torvalds 1901da177e4SLinus Torvalds if (psmouse->pktcnt == 6) { 1911da177e4SLinus Torvalds alps_process_packet(psmouse, regs); 1921da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 1931da177e4SLinus Torvalds } 1941da177e4SLinus Torvalds 1951da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 1961da177e4SLinus Torvalds } 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) 1991da177e4SLinus Torvalds { 2001da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2011da177e4SLinus Torvalds unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; 2021da177e4SLinus Torvalds unsigned char param[4]; 2031da177e4SLinus Torvalds int i; 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvalds /* 2061da177e4SLinus Torvalds * First try "E6 report". 2071da177e4SLinus Torvalds * ALPS should return 0,0,10 or 0,0,100 2081da177e4SLinus Torvalds */ 2091da177e4SLinus Torvalds param[0] = 0; 2101da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2111da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2121da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 2131da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) 2141da177e4SLinus Torvalds return NULL; 2151da177e4SLinus Torvalds 2161da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2171da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2181da177e4SLinus Torvalds return NULL; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) 2231da177e4SLinus Torvalds return NULL; 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds /* 2261da177e4SLinus Torvalds * Now try "E7 report". Allowed responses are in 2271da177e4SLinus Torvalds * alps_model_data[].signature 2281da177e4SLinus Torvalds */ 2291da177e4SLinus Torvalds param[0] = 0; 2301da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || 2311da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2321da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 2331da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) 2341da177e4SLinus Torvalds return NULL; 2351da177e4SLinus Torvalds 2361da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0xff; 2371da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2381da177e4SLinus Torvalds return NULL; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++); 2431da177e4SLinus Torvalds *version = (param[0] << 8) | (param[1] << 4) | i; 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) 2461da177e4SLinus Torvalds if (!memcmp(param, alps_model_data[i].signature, sizeof(alps_model_data[i].signature))) 2471da177e4SLinus Torvalds return alps_model_data + i; 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds return NULL; 2501da177e4SLinus Torvalds } 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds /* 2531da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 2541da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 2551da177e4SLinus Torvalds * I'd thought it would be other way around... 2561da177e4SLinus Torvalds */ 2571da177e4SLinus Torvalds static int alps_passthrough_mode(struct psmouse *psmouse, int enable) 2581da177e4SLinus Torvalds { 2591da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2601da177e4SLinus Torvalds unsigned char param[3]; 2611da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 2641da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2651da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 2661da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 2671da177e4SLinus Torvalds return -1; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 2701da177e4SLinus Torvalds ps2_command(ps2dev, param, 0x0300); 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds return 0; 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds static int alps_absolute_mode(struct psmouse *psmouse) 2761da177e4SLinus Torvalds { 2771da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 2801da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2811da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2821da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2831da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 2841da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 2851da177e4SLinus Torvalds return -1; 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds /* 2881da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 2891da177e4SLinus Torvalds * get in our way 2901da177e4SLinus Torvalds */ 2911da177e4SLinus Torvalds return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 2921da177e4SLinus Torvalds } 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 2951da177e4SLinus Torvalds { 2961da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 2971da177e4SLinus Torvalds 2981da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 2991da177e4SLinus Torvalds if (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, param, PSMOUSE_CMD_GETINFO)) 3031da177e4SLinus Torvalds return -1; 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds return 0; 3081da177e4SLinus Torvalds } 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds /* 3111da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 3121da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 3131da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 3141da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 3151da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 3161da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 3171da177e4SLinus Torvalds * we don't fiddle with it. 3181da177e4SLinus Torvalds */ 3191da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 3201da177e4SLinus Torvalds { 3211da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 3221da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 3231da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 3241da177e4SLinus Torvalds unsigned char param[4]; 3251da177e4SLinus Torvalds 3261da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 3271da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3281da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 3291da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 3301da177e4SLinus Torvalds return -1; 3311da177e4SLinus Torvalds 3321da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3331da177e4SLinus Torvalds return -1; 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds return 0; 3361da177e4SLinus Torvalds } 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds static int alps_reconnect(struct psmouse *psmouse) 3391da177e4SLinus Torvalds { 3401da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 3411da177e4SLinus Torvalds unsigned char param[4]; 3421da177e4SLinus Torvalds int version; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds if (!(priv->i = alps_get_model(psmouse, &version))) 3451da177e4SLinus Torvalds return -1; 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds if (priv->i->flags & ALPS_PASS && alps_passthrough_mode(psmouse, 1)) 3481da177e4SLinus Torvalds return -1; 3491da177e4SLinus Torvalds 3501da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 3511da177e4SLinus Torvalds return -1; 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds if (param[0] & 0x04) 3541da177e4SLinus Torvalds alps_tap_mode(psmouse, 1); 3551da177e4SLinus Torvalds 3561da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 3571da177e4SLinus Torvalds printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 3581da177e4SLinus Torvalds return -1; 3591da177e4SLinus Torvalds } 3601da177e4SLinus Torvalds 3611da177e4SLinus Torvalds if (priv->i->flags == ALPS_PASS && alps_passthrough_mode(psmouse, 0)) 3621da177e4SLinus Torvalds return -1; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds return 0; 3651da177e4SLinus Torvalds } 3661da177e4SLinus Torvalds 3671da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 3681da177e4SLinus Torvalds { 3691da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 3701da177e4SLinus Torvalds psmouse_reset(psmouse); 3711da177e4SLinus Torvalds input_unregister_device(&priv->dev2); 3721da177e4SLinus Torvalds kfree(priv); 3731da177e4SLinus Torvalds } 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 3761da177e4SLinus Torvalds { 3771da177e4SLinus Torvalds struct alps_data *priv; 3781da177e4SLinus Torvalds unsigned char param[4]; 3791da177e4SLinus Torvalds int version; 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds psmouse->private = priv = kmalloc(sizeof(struct alps_data), GFP_KERNEL); 3821da177e4SLinus Torvalds if (!priv) 3831da177e4SLinus Torvalds goto init_fail; 3841da177e4SLinus Torvalds memset(priv, 0, sizeof(struct alps_data)); 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds if (!(priv->i = alps_get_model(psmouse, &version))) 3871da177e4SLinus Torvalds goto init_fail; 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1)) 3901da177e4SLinus Torvalds goto init_fail; 3911da177e4SLinus Torvalds 3921da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) { 3931da177e4SLinus Torvalds printk(KERN_ERR "alps.c: touchpad status report request failed\n"); 3941da177e4SLinus Torvalds goto init_fail; 3951da177e4SLinus Torvalds } 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds if (param[0] & 0x04) { 39864b14d37SAndrew Morton printk(KERN_INFO "alps.c: Enabling hardware tapping\n"); 3991da177e4SLinus Torvalds if (alps_tap_mode(psmouse, 1)) 4001da177e4SLinus Torvalds printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n"); 4011da177e4SLinus Torvalds } 4021da177e4SLinus Torvalds 4031da177e4SLinus Torvalds if (alps_absolute_mode(psmouse)) { 4041da177e4SLinus Torvalds printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); 4051da177e4SLinus Torvalds goto init_fail; 4061da177e4SLinus Torvalds } 4071da177e4SLinus Torvalds 4081da177e4SLinus Torvalds if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0)) 4091da177e4SLinus Torvalds goto init_fail; 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_KEY)] |= BIT(EV_KEY); 4121da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH); 4131da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER); 4141da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 4151da177e4SLinus Torvalds 4161da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS); 4171da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0); 4181da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_Y, 0, 767, 0, 0); 4191da177e4SLinus Torvalds input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0); 4201da177e4SLinus Torvalds 4211da177e4SLinus Torvalds if (priv->i->flags & ALPS_WHEEL) { 4221da177e4SLinus Torvalds psmouse->dev.evbit[LONG(EV_REL)] |= BIT(EV_REL); 4231da177e4SLinus Torvalds psmouse->dev.relbit[LONG(REL_WHEEL)] |= BIT(REL_WHEEL); 4241da177e4SLinus Torvalds } 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds if (priv->i->flags & ALPS_FW_BK) { 4271da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_FORWARD)] |= BIT(BTN_FORWARD); 4281da177e4SLinus Torvalds psmouse->dev.keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK); 4291da177e4SLinus Torvalds } 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys); 4321da177e4SLinus Torvalds priv->dev2.phys = priv->phys; 4331da177e4SLinus Torvalds priv->dev2.name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; 4341da177e4SLinus Torvalds priv->dev2.id.bustype = BUS_I8042; 4351da177e4SLinus Torvalds priv->dev2.id.vendor = 0x0002; 4361da177e4SLinus Torvalds priv->dev2.id.product = PSMOUSE_ALPS; 4371da177e4SLinus Torvalds priv->dev2.id.version = 0x0000; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds priv->dev2.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); 4401da177e4SLinus Torvalds priv->dev2.relbit[LONG(REL_X)] |= BIT(REL_X) | BIT(REL_Y); 4411da177e4SLinus Torvalds priv->dev2.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 4421da177e4SLinus Torvalds 4431da177e4SLinus Torvalds input_register_device(&priv->dev2); 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds printk(KERN_INFO "input: %s on %s\n", priv->dev2.name, psmouse->ps2dev.serio->phys); 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 4481da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 4491da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 4501da177e4SLinus Torvalds psmouse->pktsize = 6; 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvalds return 0; 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds init_fail: 4551da177e4SLinus Torvalds kfree(priv); 4561da177e4SLinus Torvalds return -1; 4571da177e4SLinus Torvalds } 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds int alps_detect(struct psmouse *psmouse, int set_properties) 4601da177e4SLinus Torvalds { 4611da177e4SLinus Torvalds int version; 4621da177e4SLinus Torvalds struct alps_model_info *model; 4631da177e4SLinus Torvalds 4641da177e4SLinus Torvalds if (!(model = alps_get_model(psmouse, &version))) 4651da177e4SLinus Torvalds return -1; 4661da177e4SLinus Torvalds 4671da177e4SLinus Torvalds if (set_properties) { 4681da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 4691da177e4SLinus Torvalds if (model->flags & ALPS_DUALPOINT) 4701da177e4SLinus Torvalds psmouse->name = "DualPoint TouchPad"; 4711da177e4SLinus Torvalds else 4721da177e4SLinus Torvalds psmouse->name = "GlidePoint"; 4731da177e4SLinus Torvalds psmouse->model = version; 4741da177e4SLinus Torvalds } 4751da177e4SLinus Torvalds return 0; 4761da177e4SLinus Torvalds } 4771da177e4SLinus Torvalds 478