1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * ALPS touchpad PS/2 mouse driver 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 6963f626dSPeter Osterlund * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> 71da177e4SLinus Torvalds * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> 81da177e4SLinus Torvalds * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> 91d9f2626SSebastian Kapfer * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * ALPS detection, tap switching and status querying info is taken from 121da177e4SLinus Torvalds * tpconfig utility (by C. Scott Ananian and Bruce Kall). 131da177e4SLinus Torvalds */ 141da177e4SLinus Torvalds 155a0e3ad6STejun Heo #include <linux/slab.h> 161da177e4SLinus Torvalds #include <linux/input.h> 1701ce661fSSeth Forshee #include <linux/input/mt.h> 181da177e4SLinus Torvalds #include <linux/serio.h> 191da177e4SLinus Torvalds #include <linux/libps2.h> 20073e570dSHans de Goede #include <linux/dmi.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #include "psmouse.h" 231da177e4SLinus Torvalds #include "alps.h" 247e4935ccSHui Wang #include "trackpoint.h" 251da177e4SLinus Torvalds 2625bded7cSSeth Forshee /* 2725bded7cSSeth Forshee * Definitions for ALPS version 3 and 4 command mode protocol 2825bded7cSSeth Forshee */ 2925bded7cSSeth Forshee #define ALPS_CMD_NIBBLE_10 0x01f2 3025bded7cSSeth Forshee 31cd401204SKevin Cernekee #define ALPS_REG_BASE_RUSHMORE 0xc2c0 32dae928ecSPali Rohár #define ALPS_REG_BASE_V7 0xc2c0 33cd401204SKevin Cernekee #define ALPS_REG_BASE_PINNACLE 0x0000 34cd401204SKevin Cernekee 3525bded7cSSeth Forshee static const struct alps_nibble_commands alps_v3_nibble_commands[] = { 3625bded7cSSeth Forshee { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ 3725bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 3825bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 3925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 4025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 4125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 4225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 4325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 4425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 4525bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 4625bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 4725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 4825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 4925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 5025bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 5125bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 5225bded7cSSeth Forshee }; 5325bded7cSSeth Forshee 5425bded7cSSeth Forshee static const struct alps_nibble_commands alps_v4_nibble_commands[] = { 5525bded7cSSeth Forshee { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 5625bded7cSSeth Forshee { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 5725bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 5825bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 5925bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 6025bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 6125bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 6225bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 6325bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 6425bded7cSSeth Forshee { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 6525bded7cSSeth Forshee { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 6625bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 6725bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 6825bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 6925bded7cSSeth Forshee { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 7025bded7cSSeth Forshee { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 7125bded7cSSeth Forshee }; 7225bded7cSSeth Forshee 7395f75e91SYunkang Tang static const struct alps_nibble_commands alps_v6_nibble_commands[] = { 7495f75e91SYunkang Tang { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 7595f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ 7695f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ 7795f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ 7895f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ 7995f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ 8095f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ 8195f75e91SYunkang Tang { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ 8295f75e91SYunkang Tang { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ 8395f75e91SYunkang Tang { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ 8495f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ 8595f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ 8695f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ 8795f75e91SYunkang Tang { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ 8895f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ 8995f75e91SYunkang Tang { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 9095f75e91SYunkang Tang }; 9195f75e91SYunkang Tang 9225bded7cSSeth Forshee 9371bb21b6SMaxim Levitsky #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ 9471bb21b6SMaxim Levitsky #define ALPS_PASS 0x04 /* device has a pass-through port */ 9571bb21b6SMaxim Levitsky 9671bb21b6SMaxim Levitsky #define ALPS_WHEEL 0x08 /* hardware wheel present */ 9771bb21b6SMaxim Levitsky #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ 9871bb21b6SMaxim Levitsky #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ 9971bb21b6SMaxim Levitsky #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ 1001d9f2626SSebastian Kapfer #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 1011d9f2626SSebastian Kapfer 6-byte ALPS packet */ 10219556219SHans de Goede #define ALPS_STICK_BITS 0x100 /* separate stick button bits */ 1033808843cSYunkang Tang #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ 1047ad8a106SBen Gamari #define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */ 1051da177e4SLinus Torvalds 106e38de678SHelge Deller static const struct alps_model_info alps_model_data[] = { 107626b9da0SDmitry Torokhov /* 108626b9da0SDmitry Torokhov * XXX This entry is suspicious. First byte has zero lower nibble, 109626b9da0SDmitry Torokhov * which is what a normal mouse would report. Also, the value 0x0e 110626b9da0SDmitry Torokhov * isn't valid per PS/2 spec. 111626b9da0SDmitry Torokhov */ 112a3cbfd56SPali Rohár { { 0x20, 0x02, 0x0e }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 113626b9da0SDmitry Torokhov 114a3cbfd56SPali Rohár { { 0x22, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, 115a3cbfd56SPali Rohár { { 0x22, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */ 116a3cbfd56SPali Rohár { { 0x32, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */ 117a3cbfd56SPali Rohár { { 0x33, 0x02, 0x0a }, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */ 118a3cbfd56SPali Rohár { { 0x52, 0x01, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff, 1198326bb57SDmitry Torokhov ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */ 120a3cbfd56SPali Rohár { { 0x53, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 121a3cbfd56SPali Rohár { { 0x53, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 122a3cbfd56SPali Rohár { { 0x60, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, /* HP ze1115 */ 123a3cbfd56SPali Rohár { { 0x62, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xcf, 0xcf, 124a3cbfd56SPali Rohár ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 125a3cbfd56SPali Rohár { { 0x63, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 126a3cbfd56SPali Rohár { { 0x63, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 127a3cbfd56SPali Rohár { { 0x63, 0x02, 0x28 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Fujitsu Siemens S6010 */ 128a3cbfd56SPali Rohár { { 0x63, 0x02, 0x3c }, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-103 */ 129a3cbfd56SPali Rohár { { 0x63, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 } }, /* NEC Versa L320 */ 130a3cbfd56SPali Rohár { { 0x63, 0x02, 0x64 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 131a3cbfd56SPali Rohár { { 0x63, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D800 */ 132a3cbfd56SPali Rohár { { 0x73, 0x00, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG */ 133a3cbfd56SPali Rohár { { 0x73, 0x00, 0x14 }, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */ 134a3cbfd56SPali Rohár { { 0x73, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, 135a3cbfd56SPali Rohár { { 0x73, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Ahtec Laptop */ 136a3cbfd56SPali Rohár { { 0x73, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */ 1371da177e4SLinus Torvalds }; 1381da177e4SLinus Torvalds 1393296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_protocol_data = { 1404621c966SPali Rohár ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE 1413296f71cSDmitry Torokhov }; 1423296f71cSDmitry Torokhov 1433296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v3_rushmore_data = { 1444621c966SPali Rohár ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE 1453296f71cSDmitry Torokhov }; 1463296f71cSDmitry Torokhov 14709c398bcSPali Rohár static const struct alps_protocol_info alps_v4_protocol_data = { 14809c398bcSPali Rohár ALPS_PROTO_V4, 0x8f, 0x8f, 0 14909c398bcSPali Rohár }; 15009c398bcSPali Rohár 1513296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v5_protocol_data = { 1523296f71cSDmitry Torokhov ALPS_PROTO_V5, 0xc8, 0xd8, 0 1533296f71cSDmitry Torokhov }; 1543296f71cSDmitry Torokhov 1553296f71cSDmitry Torokhov static const struct alps_protocol_info alps_v7_protocol_data = { 1564621c966SPali Rohár ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE 1573296f71cSDmitry Torokhov }; 1583296f71cSDmitry Torokhov 1593db5b9f7SMasaki Ota static const struct alps_protocol_info alps_v8_protocol_data = { 1603db5b9f7SMasaki Ota ALPS_PROTO_V8, 0x18, 0x18, 0 1613db5b9f7SMasaki Ota }; 1623db5b9f7SMasaki Ota 163c9815232SPali Rohár static const struct alps_protocol_info alps_v9_protocol_data = { 164c9815232SPali Rohár ALPS_PROTO_V9, 0xc8, 0xc8, 0 165c9815232SPali Rohár }; 166c9815232SPali Rohár 16719556219SHans de Goede /* 16819556219SHans de Goede * Some v2 models report the stick buttons in separate bits 16919556219SHans de Goede */ 17019556219SHans de Goede static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = { 17119556219SHans de Goede #if defined(CONFIG_DMI) && defined(CONFIG_X86) 17219556219SHans de Goede { 17319556219SHans de Goede /* Extrapolated from other entries */ 17419556219SHans de Goede .matches = { 17519556219SHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 17619556219SHans de Goede DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D420"), 17719556219SHans de Goede }, 17819556219SHans de Goede }, 17919556219SHans de Goede { 18019556219SHans de Goede /* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */ 18119556219SHans de Goede .matches = { 18219556219SHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 18319556219SHans de Goede DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D430"), 18419556219SHans de Goede }, 18519556219SHans de Goede }, 18619556219SHans de Goede { 18719556219SHans de Goede /* Reported-by: Hans de Goede <hdegoede@redhat.com> */ 18819556219SHans de Goede .matches = { 18919556219SHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 19019556219SHans de Goede DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D620"), 19119556219SHans de Goede }, 19219556219SHans de Goede }, 19319556219SHans de Goede { 19419556219SHans de Goede /* Extrapolated from other entries */ 19519556219SHans de Goede .matches = { 19619556219SHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 19719556219SHans de Goede DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D630"), 19819556219SHans de Goede }, 19919556219SHans de Goede }, 20019556219SHans de Goede #endif 20119556219SHans de Goede { } 20219556219SHans de Goede }; 20319556219SHans de Goede 20424af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 20524af5cb9SKevin Cernekee struct input_dev *dev1); 206688ea364SHans de Goede static void alps_set_abs_params_semi_mt(struct alps_data *priv, 20724af5cb9SKevin Cernekee struct input_dev *dev1); 2088eccd393SMasaki Ota static void alps_set_abs_params_v7(struct alps_data *priv, 2098eccd393SMasaki Ota struct input_dev *dev1); 2103db5b9f7SMasaki Ota static void alps_set_abs_params_ss4_v2(struct alps_data *priv, 2113db5b9f7SMasaki Ota struct input_dev *dev1); 21224af5cb9SKevin Cernekee 2135fb94e9cSMauro Carvalho Chehab /* Packet formats are described in Documentation/input/devices/alps.rst */ 2141da177e4SLinus Torvalds 21599df65e7SKevin Cernekee static bool alps_is_valid_first_byte(struct alps_data *priv, 2161d9f2626SSebastian Kapfer unsigned char data) 2171d9f2626SSebastian Kapfer { 21899df65e7SKevin Cernekee return (data & priv->mask0) == priv->byte0; 2191d9f2626SSebastian Kapfer } 2201d9f2626SSebastian Kapfer 22104aae283SPali Rohár static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, 2221d9f2626SSebastian Kapfer int left, int right, int middle) 2231d9f2626SSebastian Kapfer { 2241d9f2626SSebastian Kapfer struct input_dev *dev; 2251d9f2626SSebastian Kapfer 2261d9f2626SSebastian Kapfer /* 2271d9f2626SSebastian Kapfer * If shared button has already been reported on the 2281d9f2626SSebastian Kapfer * other device (dev2) then this event should be also 2291d9f2626SSebastian Kapfer * sent through that device. 2301d9f2626SSebastian Kapfer */ 23104aae283SPali Rohár dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1; 2321d9f2626SSebastian Kapfer input_report_key(dev, BTN_LEFT, left); 2331d9f2626SSebastian Kapfer 23404aae283SPali Rohár dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1; 2351d9f2626SSebastian Kapfer input_report_key(dev, BTN_RIGHT, right); 2361d9f2626SSebastian Kapfer 23704aae283SPali Rohár dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1; 2381d9f2626SSebastian Kapfer input_report_key(dev, BTN_MIDDLE, middle); 2391d9f2626SSebastian Kapfer 2401d9f2626SSebastian Kapfer /* 2411d9f2626SSebastian Kapfer * Sync the _other_ device now, we'll do the first 2421d9f2626SSebastian Kapfer * device later once we report the rest of the events. 2431d9f2626SSebastian Kapfer */ 24404aae283SPali Rohár if (dev2) 2451d9f2626SSebastian Kapfer input_sync(dev2); 2461d9f2626SSebastian Kapfer } 2471d9f2626SSebastian Kapfer 24825bded7cSSeth Forshee static void alps_process_packet_v1_v2(struct psmouse *psmouse) 2491da177e4SLinus Torvalds { 2501da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 2511da177e4SLinus Torvalds unsigned char *packet = psmouse->packet; 2522e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev; 2532e5b636bSDmitry Torokhov struct input_dev *dev2 = priv->dev2; 2541da177e4SLinus Torvalds int x, y, z, ges, fin, left, right, middle; 255c30b4c10SIvan Casado Ruiz int back = 0, forward = 0; 2561da177e4SLinus Torvalds 25799df65e7SKevin Cernekee if (priv->proto_version == ALPS_PROTO_V1) { 258d2f4012fSYotam Medini left = packet[2] & 0x10; 259d2f4012fSYotam Medini right = packet[2] & 0x08; 2601da177e4SLinus Torvalds middle = 0; 2611da177e4SLinus Torvalds x = packet[1] | ((packet[0] & 0x07) << 7); 2621da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x07) << 7); 2631da177e4SLinus Torvalds z = packet[5]; 2641da177e4SLinus Torvalds } else { 2651da177e4SLinus Torvalds left = packet[3] & 1; 2661da177e4SLinus Torvalds right = packet[3] & 2; 2671da177e4SLinus Torvalds middle = packet[3] & 4; 2681da177e4SLinus Torvalds x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 2691da177e4SLinus Torvalds y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 2701da177e4SLinus Torvalds z = packet[5]; 2711da177e4SLinus Torvalds } 2721da177e4SLinus Torvalds 27399df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_1) { 2743c00bb96SLaszlo Kajan back = packet[0] & 0x10; 2753c00bb96SLaszlo Kajan forward = packet[2] & 4; 276c30b4c10SIvan Casado Ruiz } 277c30b4c10SIvan Casado Ruiz 27899df65e7SKevin Cernekee if (priv->flags & ALPS_FW_BK_2) { 279c30b4c10SIvan Casado Ruiz back = packet[3] & 4; 280c30b4c10SIvan Casado Ruiz forward = packet[2] & 4; 281c30b4c10SIvan Casado Ruiz if ((middle = forward && back)) 282c30b4c10SIvan Casado Ruiz forward = back = 0; 283c30b4c10SIvan Casado Ruiz } 284c30b4c10SIvan Casado Ruiz 2851da177e4SLinus Torvalds ges = packet[2] & 1; 2861da177e4SLinus Torvalds fin = packet[2] & 2; 2871da177e4SLinus Torvalds 28899df65e7SKevin Cernekee if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 2891da177e4SLinus Torvalds input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 2901da177e4SLinus Torvalds input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 291d7ed5d88SUlrich Dangel 29204aae283SPali Rohár alps_report_buttons(dev2, dev, left, right, middle); 293d7ed5d88SUlrich Dangel 2941da177e4SLinus Torvalds input_sync(dev2); 2951da177e4SLinus Torvalds return; 2961da177e4SLinus Torvalds } 2971da177e4SLinus Torvalds 29819556219SHans de Goede /* Some models have separate stick button bits */ 29919556219SHans de Goede if (priv->flags & ALPS_STICK_BITS) { 30092bac83dSHans de Goede left |= packet[0] & 1; 30192bac83dSHans de Goede right |= packet[0] & 2; 30292bac83dSHans de Goede middle |= packet[0] & 4; 30392bac83dSHans de Goede } 30492bac83dSHans de Goede 30504aae283SPali Rohár alps_report_buttons(dev, dev2, left, right, middle); 306d7ed5d88SUlrich Dangel 3071da177e4SLinus Torvalds /* Convert hardware tap to a reasonable Z value */ 30871bb21b6SMaxim Levitsky if (ges && !fin) 30971bb21b6SMaxim Levitsky z = 40; 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds /* 3121da177e4SLinus Torvalds * A "tap and drag" operation is reported by the hardware as a transition 3131da177e4SLinus Torvalds * from (!fin && ges) to (fin && ges). This should be translated to the 3141da177e4SLinus Torvalds * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 3151da177e4SLinus Torvalds */ 3161da177e4SLinus Torvalds if (ges && fin && !priv->prev_fin) { 3171da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 3181da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 3191da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, 0); 3201da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, 0); 3211da177e4SLinus Torvalds input_sync(dev); 3221da177e4SLinus Torvalds } 3231da177e4SLinus Torvalds priv->prev_fin = fin; 3241da177e4SLinus Torvalds 32571bb21b6SMaxim Levitsky if (z > 30) 32671bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 1); 32771bb21b6SMaxim Levitsky if (z < 25) 32871bb21b6SMaxim Levitsky input_report_key(dev, BTN_TOUCH, 0); 3291da177e4SLinus Torvalds 3301da177e4SLinus Torvalds if (z > 0) { 3311da177e4SLinus Torvalds input_report_abs(dev, ABS_X, x); 3321da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, y); 3331da177e4SLinus Torvalds } 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds input_report_abs(dev, ABS_PRESSURE, z); 3361da177e4SLinus Torvalds input_report_key(dev, BTN_TOOL_FINGER, z > 0); 3371da177e4SLinus Torvalds 33899df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) 339e6c047b9SVojtech Pavlik input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 3401da177e4SLinus Torvalds 34199df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 342c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_FORWARD, forward); 343c30b4c10SIvan Casado Ruiz input_report_key(dev, BTN_BACK, back); 3441da177e4SLinus Torvalds } 3451da177e4SLinus Torvalds 34699df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 34771bb21b6SMaxim Levitsky input_report_key(dev, BTN_0, packet[2] & 4); 34871bb21b6SMaxim Levitsky input_report_key(dev, BTN_1, packet[0] & 0x10); 34971bb21b6SMaxim Levitsky input_report_key(dev, BTN_2, packet[3] & 4); 35071bb21b6SMaxim Levitsky input_report_key(dev, BTN_3, packet[0] & 0x20); 35171bb21b6SMaxim Levitsky } 35271bb21b6SMaxim Levitsky 3531da177e4SLinus Torvalds input_sync(dev); 3541da177e4SLinus Torvalds } 3551da177e4SLinus Torvalds 356036e6c7bSHans de Goede static void alps_get_bitmap_points(unsigned int map, 357036e6c7bSHans de Goede struct alps_bitmap_point *low, 358036e6c7bSHans de Goede struct alps_bitmap_point *high, 359036e6c7bSHans de Goede int *fingers) 360036e6c7bSHans de Goede { 361036e6c7bSHans de Goede struct alps_bitmap_point *point; 362036e6c7bSHans de Goede int i, bit, prev_bit = 0; 363036e6c7bSHans de Goede 364036e6c7bSHans de Goede point = low; 365036e6c7bSHans de Goede for (i = 0; map != 0; i++, map >>= 1) { 366036e6c7bSHans de Goede bit = map & 1; 367036e6c7bSHans de Goede if (bit) { 368036e6c7bSHans de Goede if (!prev_bit) { 369036e6c7bSHans de Goede point->start_bit = i; 370105affbfSHans de Goede point->num_bits = 0; 371036e6c7bSHans de Goede (*fingers)++; 372036e6c7bSHans de Goede } 373036e6c7bSHans de Goede point->num_bits++; 374036e6c7bSHans de Goede } else { 375036e6c7bSHans de Goede if (prev_bit) 376036e6c7bSHans de Goede point = high; 377036e6c7bSHans de Goede } 378036e6c7bSHans de Goede prev_bit = bit; 379036e6c7bSHans de Goede } 380036e6c7bSHans de Goede } 381036e6c7bSHans de Goede 382ee65d4b3SYunkang Tang /* 383dccf1dd8SHans de Goede * Process bitmap data from semi-mt protocols. Returns the number of 38401ce661fSSeth Forshee * fingers detected. A return value of 0 means at least one of the 38501ce661fSSeth Forshee * bitmaps was empty. 38601ce661fSSeth Forshee * 38701ce661fSSeth Forshee * The bitmaps don't have enough data to track fingers, so this function 38801ce661fSSeth Forshee * only generates points representing a bounding box of all contacts. 38902d04254SHans de Goede * These points are returned in fields->mt when the return value 39001ce661fSSeth Forshee * is greater than 0. 39101ce661fSSeth Forshee */ 3927a9f73e7SKevin Cernekee static int alps_process_bitmap(struct alps_data *priv, 39302d04254SHans de Goede struct alps_fields *fields) 39401ce661fSSeth Forshee { 3954dd26573SHans de Goede int i, fingers_x = 0, fingers_y = 0, fingers, closest; 39601ce661fSSeth Forshee struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 39701ce661fSSeth Forshee struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 3984dd26573SHans de Goede struct input_mt_pos corner[4]; 39901ce661fSSeth Forshee 40002d04254SHans de Goede if (!fields->x_map || !fields->y_map) 40101ce661fSSeth Forshee return 0; 40201ce661fSSeth Forshee 40302d04254SHans de Goede alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 40402d04254SHans de Goede alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 40501ce661fSSeth Forshee 40601ce661fSSeth Forshee /* 40701ce661fSSeth Forshee * Fingers can overlap, so we use the maximum count of fingers 40801ce661fSSeth Forshee * on either axis as the finger count. 40901ce661fSSeth Forshee */ 41001ce661fSSeth Forshee fingers = max(fingers_x, fingers_y); 41101ce661fSSeth Forshee 41201ce661fSSeth Forshee /* 41320bea68bSHans de Goede * If an axis reports only a single contact, we have overlapping or 41420bea68bSHans de Goede * adjacent fingers. Divide the single contact between the two points. 41501ce661fSSeth Forshee */ 41601ce661fSSeth Forshee if (fingers_x == 1) { 41728835f45SHans de Goede i = (x_low.num_bits - 1) / 2; 41801ce661fSSeth Forshee x_low.num_bits = x_low.num_bits - i; 41901ce661fSSeth Forshee x_high.start_bit = x_low.start_bit + i; 42001ce661fSSeth Forshee x_high.num_bits = max(i, 1); 42120bea68bSHans de Goede } 42220bea68bSHans de Goede if (fingers_y == 1) { 42328835f45SHans de Goede i = (y_low.num_bits - 1) / 2; 42401ce661fSSeth Forshee y_low.num_bits = y_low.num_bits - i; 42501ce661fSSeth Forshee y_high.start_bit = y_low.start_bit + i; 42601ce661fSSeth Forshee y_high.num_bits = max(i, 1); 42701ce661fSSeth Forshee } 42801ce661fSSeth Forshee 4294dd26573SHans de Goede /* top-left corner */ 4304dd26573SHans de Goede corner[0].x = 43102d04254SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4327a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 4334dd26573SHans de Goede corner[0].y = 43402d04254SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4357a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 43601ce661fSSeth Forshee 4374dd26573SHans de Goede /* top-right corner */ 4384dd26573SHans de Goede corner[1].x = 43902d04254SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4407a9f73e7SKevin Cernekee (2 * (priv->x_bits - 1)); 4414dd26573SHans de Goede corner[1].y = 4424dd26573SHans de Goede (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 4434dd26573SHans de Goede (2 * (priv->y_bits - 1)); 4444dd26573SHans de Goede 4454dd26573SHans de Goede /* bottom-right corner */ 4464dd26573SHans de Goede corner[2].x = 4474dd26573SHans de Goede (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 4484dd26573SHans de Goede (2 * (priv->x_bits - 1)); 4494dd26573SHans de Goede corner[2].y = 45002d04254SHans de Goede (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 4517a9f73e7SKevin Cernekee (2 * (priv->y_bits - 1)); 45201ce661fSSeth Forshee 4534dd26573SHans de Goede /* bottom-left corner */ 4544dd26573SHans de Goede corner[3].x = 4554dd26573SHans de Goede (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 4564dd26573SHans de Goede (2 * (priv->x_bits - 1)); 4574dd26573SHans de Goede corner[3].y = 45801ce661fSSeth Forshee (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 45901ce661fSSeth Forshee (2 * (priv->y_bits - 1)); 46001ce661fSSeth Forshee 461dccf1dd8SHans de Goede /* x-bitmap order is reversed on v5 touchpads */ 462dccf1dd8SHans de Goede if (priv->proto_version == ALPS_PROTO_V5) { 463dccf1dd8SHans de Goede for (i = 0; i < 4; i++) 464dccf1dd8SHans de Goede corner[i].x = priv->x_max - corner[i].x; 46540e8f53bSHans de Goede } 46640e8f53bSHans de Goede 467dccf1dd8SHans de Goede /* y-bitmap order is reversed on v3 and v4 touchpads */ 468dccf1dd8SHans de Goede if (priv->proto_version == ALPS_PROTO_V3 || 469dccf1dd8SHans de Goede priv->proto_version == ALPS_PROTO_V4) { 4704dd26573SHans de Goede for (i = 0; i < 4; i++) 4714dd26573SHans de Goede corner[i].y = priv->y_max - corner[i].y; 47201ce661fSSeth Forshee } 47301ce661fSSeth Forshee 4744dd26573SHans de Goede /* 4754dd26573SHans de Goede * We only select a corner for the second touch once per 2 finger 4764dd26573SHans de Goede * touch sequence to avoid the chosen corner (and thus the coordinates) 4774dd26573SHans de Goede * jumping around when the first touch is in the middle. 4784dd26573SHans de Goede */ 4794dd26573SHans de Goede if (priv->second_touch == -1) { 4804dd26573SHans de Goede /* Find corner closest to our st coordinates */ 4814dd26573SHans de Goede closest = 0x7fffffff; 4824dd26573SHans de Goede for (i = 0; i < 4; i++) { 4834dd26573SHans de Goede int dx = fields->st.x - corner[i].x; 4844dd26573SHans de Goede int dy = fields->st.y - corner[i].y; 4854dd26573SHans de Goede int distance = dx * dx + dy * dy; 4864dd26573SHans de Goede 4874dd26573SHans de Goede if (distance < closest) { 4884dd26573SHans de Goede priv->second_touch = i; 4894dd26573SHans de Goede closest = distance; 4904dd26573SHans de Goede } 4914dd26573SHans de Goede } 4924dd26573SHans de Goede /* And select the opposite corner to use for the 2nd touch */ 4934dd26573SHans de Goede priv->second_touch = (priv->second_touch + 2) % 4; 4944dd26573SHans de Goede } 4954dd26573SHans de Goede 4964dd26573SHans de Goede fields->mt[0] = fields->st; 4974dd26573SHans de Goede fields->mt[1] = corner[priv->second_touch]; 4984dd26573SHans de Goede 49901ce661fSSeth Forshee return fingers; 50001ce661fSSeth Forshee } 50101ce661fSSeth Forshee 502cdf333efSHans de Goede static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 50301ce661fSSeth Forshee { 50401ce661fSSeth Forshee input_mt_slot(dev, slot); 505cdf333efSHans de Goede input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 50601ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_X, x); 50701ce661fSSeth Forshee input_report_abs(dev, ABS_MT_POSITION_Y, y); 50801ce661fSSeth Forshee } 50901ce661fSSeth Forshee 510cdf333efSHans de Goede static void alps_report_mt_data(struct psmouse *psmouse, int n) 51101ce661fSSeth Forshee { 51202d04254SHans de Goede struct alps_data *priv = psmouse->private; 51302d04254SHans de Goede struct input_dev *dev = psmouse->dev; 51402d04254SHans de Goede struct alps_fields *f = &priv->f; 515cdf333efSHans de Goede int i, slot[MAX_TOUCHES]; 51602d04254SHans de Goede 517448c7f38SHenrik Rydberg input_mt_assign_slots(dev, slot, f->mt, n, 0); 518cdf333efSHans de Goede for (i = 0; i < n; i++) 519cdf333efSHans de Goede alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 520cdf333efSHans de Goede 521cdf333efSHans de Goede input_mt_sync_frame(dev); 52201ce661fSSeth Forshee } 52301ce661fSSeth Forshee 52468c21870SHans de Goede static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 52568c21870SHans de Goede { 52668c21870SHans de Goede struct alps_data *priv = psmouse->private; 52768c21870SHans de Goede struct input_dev *dev = psmouse->dev; 52868c21870SHans de Goede struct alps_fields *f = &priv->f; 52968c21870SHans de Goede 53068c21870SHans de Goede /* Use st data when we don't have mt data */ 53168c21870SHans de Goede if (fingers < 2) { 53268c21870SHans de Goede f->mt[0].x = f->st.x; 53368c21870SHans de Goede f->mt[0].y = f->st.y; 53468c21870SHans de Goede fingers = f->pressure > 0 ? 1 : 0; 5354dd26573SHans de Goede priv->second_touch = -1; 53668c21870SHans de Goede } 53768c21870SHans de Goede 5381662c033SHans de Goede if (fingers >= 1) 5391662c033SHans de Goede alps_set_slot(dev, 0, f->mt[0].x, f->mt[0].y); 5401662c033SHans de Goede if (fingers >= 2) 5411662c033SHans de Goede alps_set_slot(dev, 1, f->mt[1].x, f->mt[1].y); 5421662c033SHans de Goede input_mt_sync_frame(dev); 54368c21870SHans de Goede 54468c21870SHans de Goede input_mt_report_finger_count(dev, fingers); 54568c21870SHans de Goede 54668c21870SHans de Goede input_report_key(dev, BTN_LEFT, f->left); 54768c21870SHans de Goede input_report_key(dev, BTN_RIGHT, f->right); 54868c21870SHans de Goede input_report_key(dev, BTN_MIDDLE, f->middle); 54968c21870SHans de Goede 55068c21870SHans de Goede input_report_abs(dev, ABS_PRESSURE, f->pressure); 55168c21870SHans de Goede 55268c21870SHans de Goede input_sync(dev); 55368c21870SHans de Goede } 55468c21870SHans de Goede 55525bded7cSSeth Forshee static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 55625bded7cSSeth Forshee { 55725bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 55825bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 55925bded7cSSeth Forshee struct input_dev *dev = priv->dev2; 56025bded7cSSeth Forshee int x, y, z, left, right, middle; 56125bded7cSSeth Forshee 56234412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 56334412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 56434412ba2SPali Rohár psmouse_warn(psmouse, 56534412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 56634412ba2SPali Rohár return; 56734412ba2SPali Rohár } 56834412ba2SPali Rohár 56925bded7cSSeth Forshee /* Sanity check packet */ 57025bded7cSSeth Forshee if (!(packet[0] & 0x40)) { 57125bded7cSSeth Forshee psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 57225bded7cSSeth Forshee return; 57325bded7cSSeth Forshee } 57425bded7cSSeth Forshee 57525bded7cSSeth Forshee /* 57625bded7cSSeth Forshee * There's a special packet that seems to indicate the end 57725bded7cSSeth Forshee * of a stream of trackstick data. Filter these out. 57825bded7cSSeth Forshee */ 57925bded7cSSeth Forshee if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 58025bded7cSSeth Forshee return; 58125bded7cSSeth Forshee 58225bded7cSSeth Forshee x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 58325bded7cSSeth Forshee y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 5849c71b2c5SPali Rohár z = packet[4] & 0x7f; 58525bded7cSSeth Forshee 58625bded7cSSeth Forshee /* 58725bded7cSSeth Forshee * The x and y values tend to be quite large, and when used 58825bded7cSSeth Forshee * alone the trackstick is difficult to use. Scale them down 58925bded7cSSeth Forshee * to compensate. 59025bded7cSSeth Forshee */ 59125bded7cSSeth Forshee x /= 8; 59225bded7cSSeth Forshee y /= 8; 59325bded7cSSeth Forshee 59425bded7cSSeth Forshee input_report_rel(dev, REL_X, x); 59525bded7cSSeth Forshee input_report_rel(dev, REL_Y, -y); 5964621c966SPali Rohár input_report_abs(dev, ABS_PRESSURE, z); 59725bded7cSSeth Forshee 59825bded7cSSeth Forshee /* 59925bded7cSSeth Forshee * Most ALPS models report the trackstick buttons in the touchpad 60025bded7cSSeth Forshee * packets, but a few report them here. No reliable way has been 60125bded7cSSeth Forshee * found to differentiate between the models upfront, so we enable 60225bded7cSSeth Forshee * the quirk in response to seeing a button press in the trackstick 60325bded7cSSeth Forshee * packet. 60425bded7cSSeth Forshee */ 60525bded7cSSeth Forshee left = packet[3] & 0x01; 60625bded7cSSeth Forshee right = packet[3] & 0x02; 60725bded7cSSeth Forshee middle = packet[3] & 0x04; 60825bded7cSSeth Forshee 60925bded7cSSeth Forshee if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 61025bded7cSSeth Forshee (left || right || middle)) 61125bded7cSSeth Forshee priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 61225bded7cSSeth Forshee 61325bded7cSSeth Forshee if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 61425bded7cSSeth Forshee input_report_key(dev, BTN_LEFT, left); 61525bded7cSSeth Forshee input_report_key(dev, BTN_RIGHT, right); 61625bded7cSSeth Forshee input_report_key(dev, BTN_MIDDLE, middle); 61725bded7cSSeth Forshee } 61825bded7cSSeth Forshee 61925bded7cSSeth Forshee input_sync(dev); 62025bded7cSSeth Forshee return; 62125bded7cSSeth Forshee } 62225bded7cSSeth Forshee 623f85e5001SKevin Cernekee static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 624f85e5001SKevin Cernekee { 625f85e5001SKevin Cernekee f->left = !!(p[3] & 0x01); 626f85e5001SKevin Cernekee f->right = !!(p[3] & 0x02); 627f85e5001SKevin Cernekee f->middle = !!(p[3] & 0x04); 628f85e5001SKevin Cernekee 629f85e5001SKevin Cernekee f->ts_left = !!(p[3] & 0x10); 630f85e5001SKevin Cernekee f->ts_right = !!(p[3] & 0x20); 631f85e5001SKevin Cernekee f->ts_middle = !!(p[3] & 0x40); 632f85e5001SKevin Cernekee } 633f85e5001SKevin Cernekee 63438c11eaaSHans de Goede static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 635ee65d4b3SYunkang Tang struct psmouse *psmouse) 636f85e5001SKevin Cernekee { 637f85e5001SKevin Cernekee f->first_mp = !!(p[4] & 0x40); 638f85e5001SKevin Cernekee f->is_mp = !!(p[0] & 0x40); 639f85e5001SKevin Cernekee 640a839cd57SHans de Goede if (f->is_mp) { 641f85e5001SKevin Cernekee f->fingers = (p[5] & 0x3) + 1; 642f85e5001SKevin Cernekee f->x_map = ((p[4] & 0x7e) << 8) | 643f85e5001SKevin Cernekee ((p[1] & 0x7f) << 2) | 644f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 645f85e5001SKevin Cernekee f->y_map = ((p[3] & 0x70) << 4) | 646f85e5001SKevin Cernekee ((p[2] & 0x7f) << 1) | 647f85e5001SKevin Cernekee (p[4] & 0x01); 648a839cd57SHans de Goede } else { 64902d04254SHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 650f85e5001SKevin Cernekee ((p[0] & 0x30) >> 4); 65102d04254SHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 65202d04254SHans de Goede f->pressure = p[5] & 0x7f; 653f85e5001SKevin Cernekee 654f85e5001SKevin Cernekee alps_decode_buttons_v3(f, p); 655a839cd57SHans de Goede } 65638c11eaaSHans de Goede 65738c11eaaSHans de Goede return 0; 658f85e5001SKevin Cernekee } 659f85e5001SKevin Cernekee 66038c11eaaSHans de Goede static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 661ee65d4b3SYunkang Tang struct psmouse *psmouse) 6621302bac3SKevin Cernekee { 663aab9cf7bSHans de Goede f->first_mp = !!(p[4] & 0x40); 664f105e34aSYunkang Tang f->is_mp = !!(p[5] & 0x40); 665aab9cf7bSHans de Goede 666a839cd57SHans de Goede if (f->is_mp) { 667f105e34aSYunkang Tang f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 668aab9cf7bSHans de Goede f->x_map = ((p[5] & 0x10) << 11) | 669aab9cf7bSHans de Goede ((p[4] & 0x7e) << 8) | 670aab9cf7bSHans de Goede ((p[1] & 0x7f) << 2) | 671aab9cf7bSHans de Goede ((p[0] & 0x30) >> 4); 672aab9cf7bSHans de Goede f->y_map = ((p[5] & 0x20) << 6) | 673aab9cf7bSHans de Goede ((p[3] & 0x70) << 4) | 674aab9cf7bSHans de Goede ((p[2] & 0x7f) << 1) | 675aab9cf7bSHans de Goede (p[4] & 0x01); 676a839cd57SHans de Goede } else { 677aab9cf7bSHans de Goede f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 678aab9cf7bSHans de Goede ((p[0] & 0x30) >> 4); 679aab9cf7bSHans de Goede f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 680aab9cf7bSHans de Goede f->pressure = p[5] & 0x7f; 681aab9cf7bSHans de Goede 682aab9cf7bSHans de Goede alps_decode_buttons_v3(f, p); 683a839cd57SHans de Goede } 68438c11eaaSHans de Goede 68538c11eaaSHans de Goede return 0; 6861302bac3SKevin Cernekee } 6871302bac3SKevin Cernekee 68838c11eaaSHans de Goede static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 689ee65d4b3SYunkang Tang struct psmouse *psmouse) 69075af9e56SDave Turvene { 691ee65d4b3SYunkang Tang u64 palm_data = 0; 692ee65d4b3SYunkang Tang struct alps_data *priv = psmouse->private; 693ee65d4b3SYunkang Tang 69475af9e56SDave Turvene f->first_mp = !!(p[0] & 0x02); 69575af9e56SDave Turvene f->is_mp = !!(p[0] & 0x20); 69675af9e56SDave Turvene 697ee65d4b3SYunkang Tang if (!f->is_mp) { 69802d04254SHans de Goede f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 69902d04254SHans de Goede f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 70002d04254SHans de Goede f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 70175af9e56SDave Turvene alps_decode_buttons_v3(f, p); 702ee65d4b3SYunkang Tang } else { 703ee65d4b3SYunkang Tang f->fingers = ((p[0] & 0x6) >> 1 | 704ee65d4b3SYunkang Tang (p[0] & 0x10) >> 2); 705ee65d4b3SYunkang Tang 706ee65d4b3SYunkang Tang palm_data = (p[1] & 0x7f) | 707ee65d4b3SYunkang Tang ((p[2] & 0x7f) << 7) | 708ee65d4b3SYunkang Tang ((p[4] & 0x7f) << 14) | 709ee65d4b3SYunkang Tang ((p[5] & 0x7f) << 21) | 710ee65d4b3SYunkang Tang ((p[3] & 0x07) << 28) | 711ee65d4b3SYunkang Tang (((u64)p[3] & 0x70) << 27) | 712ee65d4b3SYunkang Tang (((u64)p[0] & 0x01) << 34); 713ee65d4b3SYunkang Tang 714ee65d4b3SYunkang Tang /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 715ee65d4b3SYunkang Tang f->y_map = palm_data & (BIT(priv->y_bits) - 1); 716ee65d4b3SYunkang Tang 717ee65d4b3SYunkang Tang /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 718ee65d4b3SYunkang Tang f->x_map = (palm_data >> priv->y_bits) & 719ee65d4b3SYunkang Tang (BIT(priv->x_bits) - 1); 720ee65d4b3SYunkang Tang } 72138c11eaaSHans de Goede 72238c11eaaSHans de Goede return 0; 72375af9e56SDave Turvene } 72475af9e56SDave Turvene 725ee65d4b3SYunkang Tang static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 72625bded7cSSeth Forshee { 72725bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 72825bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 72925bded7cSSeth Forshee struct input_dev *dev2 = priv->dev2; 73002d04254SHans de Goede struct alps_fields *f = &priv->f; 73102d04254SHans de Goede int fingers = 0; 732f85e5001SKevin Cernekee 73302d04254SHans de Goede memset(f, 0, sizeof(*f)); 73402d04254SHans de Goede 73502d04254SHans de Goede priv->decode_fields(f, packet, psmouse); 73625bded7cSSeth Forshee 73725bded7cSSeth Forshee /* 73801ce661fSSeth Forshee * There's no single feature of touchpad position and bitmap packets 73901ce661fSSeth Forshee * that can be used to distinguish between them. We rely on the fact 74001ce661fSSeth Forshee * that a bitmap packet should always follow a position packet with 74101ce661fSSeth Forshee * bit 6 of packet[4] set. 74225bded7cSSeth Forshee */ 74325bded7cSSeth Forshee if (priv->multi_packet) { 74425bded7cSSeth Forshee /* 74525bded7cSSeth Forshee * Sometimes a position packet will indicate a multi-packet 74625bded7cSSeth Forshee * sequence, but then what follows is another position 74725bded7cSSeth Forshee * packet. Check for this, and when it happens process the 74825bded7cSSeth Forshee * position packet as usual. 74925bded7cSSeth Forshee */ 75002d04254SHans de Goede if (f->is_mp) { 75102d04254SHans de Goede fingers = f->fingers; 75244b77f38SHans de Goede /* 75344b77f38SHans de Goede * Bitmap processing uses position packet's coordinate 75444b77f38SHans de Goede * data, so we need to do decode it first. 75544b77f38SHans de Goede */ 75644b77f38SHans de Goede priv->decode_fields(f, priv->multi_data, psmouse); 75702d04254SHans de Goede if (alps_process_bitmap(priv, f) == 0) 75820bea68bSHans de Goede fingers = 0; /* Use st data */ 75901ce661fSSeth Forshee } else { 76001ce661fSSeth Forshee priv->multi_packet = 0; 76125bded7cSSeth Forshee } 76225bded7cSSeth Forshee } 76325bded7cSSeth Forshee 76401ce661fSSeth Forshee /* 76501ce661fSSeth Forshee * Bit 6 of byte 0 is not usually set in position packets. The only 76601ce661fSSeth Forshee * times it seems to be set is in situations where the data is 76701ce661fSSeth Forshee * suspect anyway, e.g. a palm resting flat on the touchpad. Given 76801ce661fSSeth Forshee * this combined with the fact that this bit is useful for filtering 76901ce661fSSeth Forshee * out misidentified bitmap packets, we reject anything with this 77001ce661fSSeth Forshee * bit set. 77101ce661fSSeth Forshee */ 77202d04254SHans de Goede if (f->is_mp) 77301ce661fSSeth Forshee return; 77401ce661fSSeth Forshee 77502d04254SHans de Goede if (!priv->multi_packet && f->first_mp) { 77625bded7cSSeth Forshee priv->multi_packet = 1; 77701ce661fSSeth Forshee memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 77801ce661fSSeth Forshee return; 77901ce661fSSeth Forshee } 78001ce661fSSeth Forshee 78125bded7cSSeth Forshee priv->multi_packet = 0; 78225bded7cSSeth Forshee 78325bded7cSSeth Forshee /* 78425bded7cSSeth Forshee * Sometimes the hardware sends a single packet with z = 0 78525bded7cSSeth Forshee * in the middle of a stream. Real releases generate packets 78625bded7cSSeth Forshee * with x, y, and z all zero, so these seem to be flukes. 78725bded7cSSeth Forshee * Ignore them. 78825bded7cSSeth Forshee */ 78902d04254SHans de Goede if (f->st.x && f->st.y && !f->pressure) 79025bded7cSSeth Forshee return; 79125bded7cSSeth Forshee 79268c21870SHans de Goede alps_report_semi_mt_data(psmouse, fingers); 79325bded7cSSeth Forshee 79434412ba2SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 79534412ba2SPali Rohár !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 79602d04254SHans de Goede input_report_key(dev2, BTN_LEFT, f->ts_left); 79702d04254SHans de Goede input_report_key(dev2, BTN_RIGHT, f->ts_right); 79802d04254SHans de Goede input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 79925bded7cSSeth Forshee input_sync(dev2); 80025bded7cSSeth Forshee } 80125bded7cSSeth Forshee } 80225bded7cSSeth Forshee 80325bded7cSSeth Forshee static void alps_process_packet_v3(struct psmouse *psmouse) 80425bded7cSSeth Forshee { 80525bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 80625bded7cSSeth Forshee 80725bded7cSSeth Forshee /* 80825bded7cSSeth Forshee * v3 protocol packets come in three types, two representing 80925bded7cSSeth Forshee * touchpad data and one representing trackstick data. 81025bded7cSSeth Forshee * Trackstick packets seem to be distinguished by always 81125bded7cSSeth Forshee * having 0x3f in the last byte. This value has never been 81225bded7cSSeth Forshee * observed in the last byte of either of the other types 81325bded7cSSeth Forshee * of packets. 81425bded7cSSeth Forshee */ 81525bded7cSSeth Forshee if (packet[5] == 0x3f) { 81625bded7cSSeth Forshee alps_process_trackstick_packet_v3(psmouse); 81725bded7cSSeth Forshee return; 81825bded7cSSeth Forshee } 81925bded7cSSeth Forshee 820ee65d4b3SYunkang Tang alps_process_touchpad_packet_v3_v5(psmouse); 82125bded7cSSeth Forshee } 82225bded7cSSeth Forshee 82395f75e91SYunkang Tang static void alps_process_packet_v6(struct psmouse *psmouse) 82495f75e91SYunkang Tang { 82595f75e91SYunkang Tang struct alps_data *priv = psmouse->private; 82695f75e91SYunkang Tang unsigned char *packet = psmouse->packet; 82795f75e91SYunkang Tang struct input_dev *dev = psmouse->dev; 82895f75e91SYunkang Tang struct input_dev *dev2 = priv->dev2; 8291ef85805SDmitry Torokhov int x, y, z; 83095f75e91SYunkang Tang 83195f75e91SYunkang Tang /* 83295f75e91SYunkang Tang * We can use Byte5 to distinguish if the packet is from Touchpad 83395f75e91SYunkang Tang * or Trackpoint. 83495f75e91SYunkang Tang * Touchpad: 0 - 0x7E 83595f75e91SYunkang Tang * Trackpoint: 0x7F 83695f75e91SYunkang Tang */ 83795f75e91SYunkang Tang if (packet[5] == 0x7F) { 83895f75e91SYunkang Tang /* It should be a DualPoint when received Trackpoint packet */ 83934412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 84034412ba2SPali Rohár psmouse_warn(psmouse, 84134412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 84295f75e91SYunkang Tang return; 84334412ba2SPali Rohár } 84495f75e91SYunkang Tang 84595f75e91SYunkang Tang /* Trackpoint packet */ 84695f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x20) << 2); 84795f75e91SYunkang Tang y = packet[2] | ((packet[3] & 0x40) << 1); 84895f75e91SYunkang Tang z = packet[4]; 84995f75e91SYunkang Tang 85095f75e91SYunkang Tang /* To prevent the cursor jump when finger lifted */ 85195f75e91SYunkang Tang if (x == 0x7F && y == 0x7F && z == 0x7F) 85295f75e91SYunkang Tang x = y = z = 0; 85395f75e91SYunkang Tang 85495f75e91SYunkang Tang /* Divide 4 since trackpoint's speed is too fast */ 85595f75e91SYunkang Tang input_report_rel(dev2, REL_X, (char)x / 4); 85695f75e91SYunkang Tang input_report_rel(dev2, REL_Y, -((char)y / 4)); 85795f75e91SYunkang Tang 8581ef85805SDmitry Torokhov psmouse_report_standard_buttons(dev2, packet[3]); 85995f75e91SYunkang Tang 86095f75e91SYunkang Tang input_sync(dev2); 86195f75e91SYunkang Tang return; 86295f75e91SYunkang Tang } 86395f75e91SYunkang Tang 86495f75e91SYunkang Tang /* Touchpad packet */ 86595f75e91SYunkang Tang x = packet[1] | ((packet[3] & 0x78) << 4); 86695f75e91SYunkang Tang y = packet[2] | ((packet[4] & 0x78) << 4); 86795f75e91SYunkang Tang z = packet[5]; 86895f75e91SYunkang Tang 86995f75e91SYunkang Tang if (z > 30) 87095f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 1); 87195f75e91SYunkang Tang if (z < 25) 87295f75e91SYunkang Tang input_report_key(dev, BTN_TOUCH, 0); 87395f75e91SYunkang Tang 87495f75e91SYunkang Tang if (z > 0) { 87595f75e91SYunkang Tang input_report_abs(dev, ABS_X, x); 87695f75e91SYunkang Tang input_report_abs(dev, ABS_Y, y); 87795f75e91SYunkang Tang } 87895f75e91SYunkang Tang 87995f75e91SYunkang Tang input_report_abs(dev, ABS_PRESSURE, z); 88095f75e91SYunkang Tang input_report_key(dev, BTN_TOOL_FINGER, z > 0); 88195f75e91SYunkang Tang 88295f75e91SYunkang Tang /* v6 touchpad does not have middle button */ 8831ef85805SDmitry Torokhov packet[3] &= ~BIT(2); 8841ef85805SDmitry Torokhov psmouse_report_standard_buttons(dev2, packet[3]); 88595f75e91SYunkang Tang 88695f75e91SYunkang Tang input_sync(dev); 88795f75e91SYunkang Tang } 88895f75e91SYunkang Tang 88925bded7cSSeth Forshee static void alps_process_packet_v4(struct psmouse *psmouse) 89025bded7cSSeth Forshee { 8913b7e09faSGeorge Pantalos struct alps_data *priv = psmouse->private; 89225bded7cSSeth Forshee unsigned char *packet = psmouse->packet; 89302d04254SHans de Goede struct alps_fields *f = &priv->f; 89468c21870SHans de Goede int offset; 8953b7e09faSGeorge Pantalos 8963b7e09faSGeorge Pantalos /* 8973b7e09faSGeorge Pantalos * v4 has a 6-byte encoding for bitmap data, but this data is 8983b7e09faSGeorge Pantalos * broken up between 3 normal packets. Use priv->multi_packet to 8993b7e09faSGeorge Pantalos * track our position in the bitmap packet. 9003b7e09faSGeorge Pantalos */ 9013b7e09faSGeorge Pantalos if (packet[6] & 0x40) { 9023b7e09faSGeorge Pantalos /* sync, reset position */ 9033b7e09faSGeorge Pantalos priv->multi_packet = 0; 9043b7e09faSGeorge Pantalos } 9053b7e09faSGeorge Pantalos 9063b7e09faSGeorge Pantalos if (WARN_ON_ONCE(priv->multi_packet > 2)) 9073b7e09faSGeorge Pantalos return; 9083b7e09faSGeorge Pantalos 9093b7e09faSGeorge Pantalos offset = 2 * priv->multi_packet; 9103b7e09faSGeorge Pantalos priv->multi_data[offset] = packet[6]; 9113b7e09faSGeorge Pantalos priv->multi_data[offset + 1] = packet[7]; 9123b7e09faSGeorge Pantalos 91344b77f38SHans de Goede f->left = !!(packet[4] & 0x01); 91444b77f38SHans de Goede f->right = !!(packet[4] & 0x02); 91544b77f38SHans de Goede 91644b77f38SHans de Goede f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 91744b77f38SHans de Goede ((packet[0] & 0x30) >> 4); 91844b77f38SHans de Goede f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 91944b77f38SHans de Goede f->pressure = packet[5] & 0x7f; 92044b77f38SHans de Goede 9213b7e09faSGeorge Pantalos if (++priv->multi_packet > 2) { 9223b7e09faSGeorge Pantalos priv->multi_packet = 0; 9233b7e09faSGeorge Pantalos 92402d04254SHans de Goede f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 9253b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x60) << 3) | 9263b7e09faSGeorge Pantalos ((priv->multi_data[0] & 0x3f) << 2) | 9273b7e09faSGeorge Pantalos ((priv->multi_data[1] & 0x60) >> 5); 92802d04254SHans de Goede f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 9293b7e09faSGeorge Pantalos ((priv->multi_data[3] & 0x1f) << 5) | 9303b7e09faSGeorge Pantalos (priv->multi_data[1] & 0x1f); 9313b7e09faSGeorge Pantalos 93202d04254SHans de Goede f->fingers = alps_process_bitmap(priv, f); 9333b7e09faSGeorge Pantalos } 93425bded7cSSeth Forshee 93568c21870SHans de Goede alps_report_semi_mt_data(psmouse, f->fingers); 93625bded7cSSeth Forshee } 93725bded7cSSeth Forshee 9383808843cSYunkang Tang static bool alps_is_valid_package_v7(struct psmouse *psmouse) 9393808843cSYunkang Tang { 9403808843cSYunkang Tang switch (psmouse->pktcnt) { 9413808843cSYunkang Tang case 3: 9423808843cSYunkang Tang return (psmouse->packet[2] & 0x40) == 0x40; 9433808843cSYunkang Tang case 4: 9443808843cSYunkang Tang return (psmouse->packet[3] & 0x48) == 0x48; 9453808843cSYunkang Tang case 6: 9463808843cSYunkang Tang return (psmouse->packet[5] & 0x40) == 0x00; 9473808843cSYunkang Tang } 9483808843cSYunkang Tang return true; 9493808843cSYunkang Tang } 9503808843cSYunkang Tang 9513808843cSYunkang Tang static unsigned char alps_get_packet_id_v7(char *byte) 9523808843cSYunkang Tang { 9533808843cSYunkang Tang unsigned char packet_id; 9543808843cSYunkang Tang 9553808843cSYunkang Tang if (byte[4] & 0x40) 9563808843cSYunkang Tang packet_id = V7_PACKET_ID_TWO; 9573808843cSYunkang Tang else if (byte[4] & 0x01) 9583808843cSYunkang Tang packet_id = V7_PACKET_ID_MULTI; 9593808843cSYunkang Tang else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 9603808843cSYunkang Tang packet_id = V7_PACKET_ID_NEW; 9613808843cSYunkang Tang else if (byte[1] == 0x00 && byte[4] == 0x00) 9623808843cSYunkang Tang packet_id = V7_PACKET_ID_IDLE; 9633808843cSYunkang Tang else 9643808843cSYunkang Tang packet_id = V7_PACKET_ID_UNKNOWN; 9653808843cSYunkang Tang 9663808843cSYunkang Tang return packet_id; 9673808843cSYunkang Tang } 9683808843cSYunkang Tang 9693808843cSYunkang Tang static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 9703808843cSYunkang Tang unsigned char *pkt, 9713808843cSYunkang Tang unsigned char pkt_id) 9723808843cSYunkang Tang { 9733808843cSYunkang Tang mt[0].x = ((pkt[2] & 0x80) << 4); 9743808843cSYunkang Tang mt[0].x |= ((pkt[2] & 0x3F) << 5); 9753808843cSYunkang Tang mt[0].x |= ((pkt[3] & 0x30) >> 1); 9763808843cSYunkang Tang mt[0].x |= (pkt[3] & 0x07); 9773808843cSYunkang Tang mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 9783808843cSYunkang Tang 9793808843cSYunkang Tang mt[1].x = ((pkt[3] & 0x80) << 4); 9803808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x80) << 3); 9813808843cSYunkang Tang mt[1].x |= ((pkt[4] & 0x3F) << 4); 9823808843cSYunkang Tang mt[1].y = ((pkt[5] & 0x80) << 3); 9833808843cSYunkang Tang mt[1].y |= ((pkt[5] & 0x3F) << 4); 9843808843cSYunkang Tang 9853808843cSYunkang Tang switch (pkt_id) { 9863808843cSYunkang Tang case V7_PACKET_ID_TWO: 9873808843cSYunkang Tang mt[1].x &= ~0x000F; 9883808843cSYunkang Tang mt[1].y |= 0x000F; 98972eceab7SHans de Goede /* Detect false-postive touches where x & y report max value */ 99072eceab7SHans de Goede if (mt[1].y == 0x7ff && mt[1].x == 0xff0) { 99172eceab7SHans de Goede mt[1].x = 0; 99272eceab7SHans de Goede /* y gets set to 0 at the end of this function */ 99372eceab7SHans de Goede } 9943808843cSYunkang Tang break; 9953808843cSYunkang Tang 9963808843cSYunkang Tang case V7_PACKET_ID_MULTI: 9973808843cSYunkang Tang mt[1].x &= ~0x003F; 9983808843cSYunkang Tang mt[1].y &= ~0x0020; 9993808843cSYunkang Tang mt[1].y |= ((pkt[4] & 0x02) << 4); 10003808843cSYunkang Tang mt[1].y |= 0x001F; 10013808843cSYunkang Tang break; 10023808843cSYunkang Tang 10033808843cSYunkang Tang case V7_PACKET_ID_NEW: 10043808843cSYunkang Tang mt[1].x &= ~0x003F; 10053808843cSYunkang Tang mt[1].x |= (pkt[0] & 0x20); 10063808843cSYunkang Tang mt[1].y |= 0x000F; 10073808843cSYunkang Tang break; 10083808843cSYunkang Tang } 10093808843cSYunkang Tang 10103808843cSYunkang Tang mt[0].y = 0x7FF - mt[0].y; 10113808843cSYunkang Tang mt[1].y = 0x7FF - mt[1].y; 10123808843cSYunkang Tang } 10133808843cSYunkang Tang 10143808843cSYunkang Tang static int alps_get_mt_count(struct input_mt_pos *mt) 10153808843cSYunkang Tang { 10167091c443SHans de Goede int i, fingers = 0; 10173808843cSYunkang Tang 10187091c443SHans de Goede for (i = 0; i < MAX_TOUCHES; i++) { 10197091c443SHans de Goede if (mt[i].x != 0 || mt[i].y != 0) 10207091c443SHans de Goede fingers++; 10217091c443SHans de Goede } 10223808843cSYunkang Tang 10237091c443SHans de Goede return fingers; 10243808843cSYunkang Tang } 10253808843cSYunkang Tang 10263808843cSYunkang Tang static int alps_decode_packet_v7(struct alps_fields *f, 10273808843cSYunkang Tang unsigned char *p, 10283808843cSYunkang Tang struct psmouse *psmouse) 10293808843cSYunkang Tang { 1030d27eb793SHans de Goede struct alps_data *priv = psmouse->private; 10313808843cSYunkang Tang unsigned char pkt_id; 10323808843cSYunkang Tang 10333808843cSYunkang Tang pkt_id = alps_get_packet_id_v7(p); 10343808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_IDLE) 10353808843cSYunkang Tang return 0; 10363808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_UNKNOWN) 10373808843cSYunkang Tang return -1; 10388b238115SHans de Goede /* 10398b238115SHans de Goede * NEW packets are send to indicate a discontinuity in the finger 10408b238115SHans de Goede * coordinate reporting. Specifically a finger may have moved from 10418b238115SHans de Goede * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for 10428b238115SHans de Goede * us. 10438b238115SHans de Goede * 10448b238115SHans de Goede * NEW packets have 3 problems: 10458b238115SHans de Goede * 1) They do not contain middle / right button info (on non clickpads) 10468b238115SHans de Goede * this can be worked around by preserving the old button state 10478b238115SHans de Goede * 2) They do not contain an accurate fingercount, and they are 10488b238115SHans de Goede * typically send when the number of fingers changes. We cannot use 10498b238115SHans de Goede * the old finger count as that may mismatch with the amount of 10508b238115SHans de Goede * touch coordinates we've available in the NEW packet 10518b238115SHans de Goede * 3) Their x data for the second touch is inaccurate leading to 10528b238115SHans de Goede * a possible jump of the x coordinate by 16 units when the first 10538b238115SHans de Goede * non NEW packet comes in 10548b238115SHans de Goede * Since problems 2 & 3 cannot be worked around, just ignore them. 10558b238115SHans de Goede */ 10568b238115SHans de Goede if (pkt_id == V7_PACKET_ID_NEW) 10578b238115SHans de Goede return 1; 10583808843cSYunkang Tang 10593808843cSYunkang Tang alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 10603808843cSYunkang Tang 10613808843cSYunkang Tang if (pkt_id == V7_PACKET_ID_TWO) 10623808843cSYunkang Tang f->fingers = alps_get_mt_count(f->mt); 10638b238115SHans de Goede else /* pkt_id == V7_PACKET_ID_MULTI */ 10643808843cSYunkang Tang f->fingers = 3 + (p[5] & 0x03); 10653808843cSYunkang Tang 1066d27eb793SHans de Goede f->left = (p[0] & 0x80) >> 7; 1067d27eb793SHans de Goede if (priv->flags & ALPS_BUTTONPAD) { 1068d27eb793SHans de Goede if (p[0] & 0x20) 1069d27eb793SHans de Goede f->fingers++; 1070d27eb793SHans de Goede if (p[0] & 0x10) 1071d27eb793SHans de Goede f->fingers++; 1072d27eb793SHans de Goede } else { 1073d27eb793SHans de Goede f->right = (p[0] & 0x20) >> 5; 1074d27eb793SHans de Goede f->middle = (p[0] & 0x10) >> 4; 1075d27eb793SHans de Goede } 1076d27eb793SHans de Goede 10777091c443SHans de Goede /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ 10787091c443SHans de Goede if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { 10797091c443SHans de Goede f->mt[0].x = f->mt[1].x; 10807091c443SHans de Goede f->mt[0].y = f->mt[1].y; 10817091c443SHans de Goede f->mt[1].x = 0; 10827091c443SHans de Goede f->mt[1].y = 0; 10837091c443SHans de Goede } 10847091c443SHans de Goede 10853808843cSYunkang Tang return 0; 10863808843cSYunkang Tang } 10873808843cSYunkang Tang 10883808843cSYunkang Tang static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 10893808843cSYunkang Tang { 10903808843cSYunkang Tang struct alps_data *priv = psmouse->private; 10913808843cSYunkang Tang unsigned char *packet = psmouse->packet; 10923808843cSYunkang Tang struct input_dev *dev2 = priv->dev2; 10931ef85805SDmitry Torokhov int x, y, z; 10943808843cSYunkang Tang 109534412ba2SPali Rohár /* It should be a DualPoint when received trackstick packet */ 109634412ba2SPali Rohár if (!(priv->flags & ALPS_DUALPOINT)) { 109734412ba2SPali Rohár psmouse_warn(psmouse, 109834412ba2SPali Rohár "Rejected trackstick packet from non DualPoint device"); 109934412ba2SPali Rohár return; 110034412ba2SPali Rohár } 110134412ba2SPali Rohár 11023808843cSYunkang Tang x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 11033808843cSYunkang Tang y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 11043808843cSYunkang Tang ((packet[3] & 0x20) << 1); 11053808843cSYunkang Tang z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 11063808843cSYunkang Tang 1107088df2ccSHans de Goede input_report_rel(dev2, REL_X, (char)x); 1108088df2ccSHans de Goede input_report_rel(dev2, REL_Y, -((char)y)); 11094621c966SPali Rohár input_report_abs(dev2, ABS_PRESSURE, z); 11103808843cSYunkang Tang 11111ef85805SDmitry Torokhov psmouse_report_standard_buttons(dev2, packet[1]); 11123808843cSYunkang Tang 11133808843cSYunkang Tang input_sync(dev2); 11143808843cSYunkang Tang } 11153808843cSYunkang Tang 11163808843cSYunkang Tang static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 11173808843cSYunkang Tang { 11183808843cSYunkang Tang struct alps_data *priv = psmouse->private; 11193808843cSYunkang Tang struct input_dev *dev = psmouse->dev; 11203808843cSYunkang Tang struct alps_fields *f = &priv->f; 11213808843cSYunkang Tang 11223808843cSYunkang Tang memset(f, 0, sizeof(*f)); 11233808843cSYunkang Tang 11243808843cSYunkang Tang if (priv->decode_fields(f, psmouse->packet, psmouse)) 11253808843cSYunkang Tang return; 11263808843cSYunkang Tang 11273808843cSYunkang Tang alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 11283808843cSYunkang Tang 11293808843cSYunkang Tang input_mt_report_finger_count(dev, f->fingers); 11303808843cSYunkang Tang 11313808843cSYunkang Tang input_report_key(dev, BTN_LEFT, f->left); 11323808843cSYunkang Tang input_report_key(dev, BTN_RIGHT, f->right); 11333808843cSYunkang Tang input_report_key(dev, BTN_MIDDLE, f->middle); 11343808843cSYunkang Tang 11353808843cSYunkang Tang input_sync(dev); 11363808843cSYunkang Tang } 11373808843cSYunkang Tang 11383808843cSYunkang Tang static void alps_process_packet_v7(struct psmouse *psmouse) 11393808843cSYunkang Tang { 11403808843cSYunkang Tang unsigned char *packet = psmouse->packet; 11413808843cSYunkang Tang 11423808843cSYunkang Tang if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 11433808843cSYunkang Tang alps_process_trackstick_packet_v7(psmouse); 11443808843cSYunkang Tang else 11453808843cSYunkang Tang alps_process_touchpad_packet_v7(psmouse); 11463808843cSYunkang Tang } 11473808843cSYunkang Tang 114823fce365SPaul Donohue static enum SS4_PACKET_ID alps_get_pkt_id_ss4_v2(unsigned char *byte) 11493db5b9f7SMasaki Ota { 115023fce365SPaul Donohue enum SS4_PACKET_ID pkt_id = SS4_PACKET_ID_IDLE; 11513db5b9f7SMasaki Ota 11524777ac22SBen Gamari switch (byte[3] & 0x30) { 11534777ac22SBen Gamari case 0x00: 115423fce365SPaul Donohue if (SS4_IS_IDLE_V2(byte)) { 11553db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_IDLE; 11563db5b9f7SMasaki Ota } else { 11574777ac22SBen Gamari pkt_id = SS4_PACKET_ID_ONE; 11584777ac22SBen Gamari } 11594777ac22SBen Gamari break; 11604777ac22SBen Gamari case 0x10: 11614777ac22SBen Gamari /* two-finger finger positions */ 11624777ac22SBen Gamari pkt_id = SS4_PACKET_ID_TWO; 11634777ac22SBen Gamari break; 11644777ac22SBen Gamari case 0x20: 11654777ac22SBen Gamari /* stick pointer */ 11664777ac22SBen Gamari pkt_id = SS4_PACKET_ID_STICK; 11674777ac22SBen Gamari break; 11684777ac22SBen Gamari case 0x30: 11694777ac22SBen Gamari /* third and fourth finger positions */ 11703db5b9f7SMasaki Ota pkt_id = SS4_PACKET_ID_MULTI; 11714777ac22SBen Gamari break; 11723db5b9f7SMasaki Ota } 11733db5b9f7SMasaki Ota 11743db5b9f7SMasaki Ota return pkt_id; 11753db5b9f7SMasaki Ota } 11763db5b9f7SMasaki Ota 11773db5b9f7SMasaki Ota static int alps_decode_ss4_v2(struct alps_fields *f, 11783db5b9f7SMasaki Ota unsigned char *p, struct psmouse *psmouse) 11793db5b9f7SMasaki Ota { 11803db5b9f7SMasaki Ota struct alps_data *priv = psmouse->private; 118123fce365SPaul Donohue enum SS4_PACKET_ID pkt_id; 11823db5b9f7SMasaki Ota unsigned int no_data_x, no_data_y; 11833db5b9f7SMasaki Ota 11843db5b9f7SMasaki Ota pkt_id = alps_get_pkt_id_ss4_v2(p); 11853db5b9f7SMasaki Ota 11863db5b9f7SMasaki Ota /* Current packet is 1Finger coordinate packet */ 11873db5b9f7SMasaki Ota switch (pkt_id) { 11883db5b9f7SMasaki Ota case SS4_PACKET_ID_ONE: 11893db5b9f7SMasaki Ota f->mt[0].x = SS4_1F_X_V2(p); 11903db5b9f7SMasaki Ota f->mt[0].y = SS4_1F_Y_V2(p); 11913db5b9f7SMasaki Ota f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f; 1192a8317763SBen Gamari /* 1193a8317763SBen Gamari * When a button is held the device will give us events 1194a8317763SBen Gamari * with x, y, and pressure of 0. This causes annoying jumps 1195a8317763SBen Gamari * if a touch is released while the button is held. 1196a8317763SBen Gamari * Handle this by claiming zero contacts. 1197a8317763SBen Gamari */ 1198a8317763SBen Gamari f->fingers = f->pressure > 0 ? 1 : 0; 11993db5b9f7SMasaki Ota f->first_mp = 0; 12003db5b9f7SMasaki Ota f->is_mp = 0; 12013db5b9f7SMasaki Ota break; 12023db5b9f7SMasaki Ota 12033db5b9f7SMasaki Ota case SS4_PACKET_ID_TWO: 12043db5b9f7SMasaki Ota if (priv->flags & ALPS_BUTTONPAD) { 12054a646580SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 12064a646580SMasaki Ota f->mt[0].x = SS4_PLUS_BTL_MF_X_V2(p, 0); 12074a646580SMasaki Ota f->mt[1].x = SS4_PLUS_BTL_MF_X_V2(p, 1); 12084a646580SMasaki Ota } else { 12093db5b9f7SMasaki Ota f->mt[0].x = SS4_BTL_MF_X_V2(p, 0); 12103db5b9f7SMasaki Ota f->mt[1].x = SS4_BTL_MF_X_V2(p, 1); 12114a646580SMasaki Ota } 12124a646580SMasaki Ota f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0); 12133db5b9f7SMasaki Ota f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1); 12143db5b9f7SMasaki Ota } else { 12154a646580SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 12164a646580SMasaki Ota f->mt[0].x = SS4_PLUS_STD_MF_X_V2(p, 0); 12174a646580SMasaki Ota f->mt[1].x = SS4_PLUS_STD_MF_X_V2(p, 1); 12184a646580SMasaki Ota } else { 12193db5b9f7SMasaki Ota f->mt[0].x = SS4_STD_MF_X_V2(p, 0); 12203db5b9f7SMasaki Ota f->mt[1].x = SS4_STD_MF_X_V2(p, 1); 12214a646580SMasaki Ota } 12224a646580SMasaki Ota f->mt[0].y = SS4_STD_MF_Y_V2(p, 0); 12233db5b9f7SMasaki Ota f->mt[1].y = SS4_STD_MF_Y_V2(p, 1); 12243db5b9f7SMasaki Ota } 12253db5b9f7SMasaki Ota f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0; 12263db5b9f7SMasaki Ota 12273db5b9f7SMasaki Ota if (SS4_IS_MF_CONTINUE(p)) { 12283db5b9f7SMasaki Ota f->first_mp = 1; 12293db5b9f7SMasaki Ota } else { 12303db5b9f7SMasaki Ota f->fingers = 2; 12313db5b9f7SMasaki Ota f->first_mp = 0; 12323db5b9f7SMasaki Ota } 12333db5b9f7SMasaki Ota f->is_mp = 0; 12343db5b9f7SMasaki Ota 12353db5b9f7SMasaki Ota break; 12363db5b9f7SMasaki Ota 12373db5b9f7SMasaki Ota case SS4_PACKET_ID_MULTI: 12383db5b9f7SMasaki Ota if (priv->flags & ALPS_BUTTONPAD) { 12394a646580SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 12404d94e776SNir Perry f->mt[2].x = SS4_PLUS_BTL_MF_X_V2(p, 0); 12414d94e776SNir Perry f->mt[3].x = SS4_PLUS_BTL_MF_X_V2(p, 1); 12424d94e776SNir Perry no_data_x = SS4_PLUS_MFPACKET_NO_AX_BL; 12434a646580SMasaki Ota } else { 12443db5b9f7SMasaki Ota f->mt[2].x = SS4_BTL_MF_X_V2(p, 0); 12453db5b9f7SMasaki Ota f->mt[3].x = SS4_BTL_MF_X_V2(p, 1); 12464d94e776SNir Perry no_data_x = SS4_MFPACKET_NO_AX_BL; 12474a646580SMasaki Ota } 12484d94e776SNir Perry no_data_y = SS4_MFPACKET_NO_AY_BL; 12494a646580SMasaki Ota 12504a646580SMasaki Ota f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0); 12513db5b9f7SMasaki Ota f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1); 12523db5b9f7SMasaki Ota } else { 12534a646580SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 12544d94e776SNir Perry f->mt[2].x = SS4_PLUS_STD_MF_X_V2(p, 0); 12554d94e776SNir Perry f->mt[3].x = SS4_PLUS_STD_MF_X_V2(p, 1); 12564d94e776SNir Perry no_data_x = SS4_PLUS_MFPACKET_NO_AX; 12574a646580SMasaki Ota } else { 12584d94e776SNir Perry f->mt[2].x = SS4_STD_MF_X_V2(p, 0); 12594d94e776SNir Perry f->mt[3].x = SS4_STD_MF_X_V2(p, 1); 12604d94e776SNir Perry no_data_x = SS4_MFPACKET_NO_AX; 12614a646580SMasaki Ota } 12624d94e776SNir Perry no_data_y = SS4_MFPACKET_NO_AY; 12634d94e776SNir Perry 12643db5b9f7SMasaki Ota f->mt[2].y = SS4_STD_MF_Y_V2(p, 0); 12653db5b9f7SMasaki Ota f->mt[3].y = SS4_STD_MF_Y_V2(p, 1); 12663db5b9f7SMasaki Ota } 12673db5b9f7SMasaki Ota 12683db5b9f7SMasaki Ota f->first_mp = 0; 12693db5b9f7SMasaki Ota f->is_mp = 1; 12703db5b9f7SMasaki Ota 12713db5b9f7SMasaki Ota if (SS4_IS_5F_DETECTED(p)) { 12723db5b9f7SMasaki Ota f->fingers = 5; 12733db5b9f7SMasaki Ota } else if (f->mt[3].x == no_data_x && 12743db5b9f7SMasaki Ota f->mt[3].y == no_data_y) { 12753db5b9f7SMasaki Ota f->mt[3].x = 0; 12763db5b9f7SMasaki Ota f->mt[3].y = 0; 12773db5b9f7SMasaki Ota f->fingers = 3; 12783db5b9f7SMasaki Ota } else { 12793db5b9f7SMasaki Ota f->fingers = 4; 12803db5b9f7SMasaki Ota } 12813db5b9f7SMasaki Ota break; 12823db5b9f7SMasaki Ota 12834777ac22SBen Gamari case SS4_PACKET_ID_STICK: 12847229c58cSPaul Donohue /* 12857229c58cSPaul Donohue * x, y, and pressure are decoded in 12867229c58cSPaul Donohue * alps_process_packet_ss4_v2() 12877229c58cSPaul Donohue */ 12887229c58cSPaul Donohue f->first_mp = 0; 12897229c58cSPaul Donohue f->is_mp = 0; 12904777ac22SBen Gamari break; 12914777ac22SBen Gamari 12923db5b9f7SMasaki Ota case SS4_PACKET_ID_IDLE: 12933db5b9f7SMasaki Ota default: 12943db5b9f7SMasaki Ota memset(f, 0, sizeof(struct alps_fields)); 12953db5b9f7SMasaki Ota break; 12963db5b9f7SMasaki Ota } 12973db5b9f7SMasaki Ota 12984777ac22SBen Gamari /* handle buttons */ 12994777ac22SBen Gamari if (pkt_id == SS4_PACKET_ID_STICK) { 13004777ac22SBen Gamari f->ts_left = !!(SS4_BTN_V2(p) & 0x01); 13014777ac22SBen Gamari f->ts_right = !!(SS4_BTN_V2(p) & 0x02); 13024777ac22SBen Gamari f->ts_middle = !!(SS4_BTN_V2(p) & 0x04); 13034777ac22SBen Gamari } else { 13043db5b9f7SMasaki Ota f->left = !!(SS4_BTN_V2(p) & 0x01); 13053db5b9f7SMasaki Ota if (!(priv->flags & ALPS_BUTTONPAD)) { 13063db5b9f7SMasaki Ota f->right = !!(SS4_BTN_V2(p) & 0x02); 13073db5b9f7SMasaki Ota f->middle = !!(SS4_BTN_V2(p) & 0x04); 13083db5b9f7SMasaki Ota } 13094777ac22SBen Gamari } 13103db5b9f7SMasaki Ota 13113db5b9f7SMasaki Ota return 0; 13123db5b9f7SMasaki Ota } 13133db5b9f7SMasaki Ota 13143db5b9f7SMasaki Ota static void alps_process_packet_ss4_v2(struct psmouse *psmouse) 13153db5b9f7SMasaki Ota { 13163db5b9f7SMasaki Ota struct alps_data *priv = psmouse->private; 13173db5b9f7SMasaki Ota unsigned char *packet = psmouse->packet; 13183db5b9f7SMasaki Ota struct input_dev *dev = psmouse->dev; 13194777ac22SBen Gamari struct input_dev *dev2 = priv->dev2; 13203db5b9f7SMasaki Ota struct alps_fields *f = &priv->f; 13213db5b9f7SMasaki Ota 13223db5b9f7SMasaki Ota memset(f, 0, sizeof(struct alps_fields)); 13233db5b9f7SMasaki Ota priv->decode_fields(f, packet, psmouse); 13243db5b9f7SMasaki Ota if (priv->multi_packet) { 13253db5b9f7SMasaki Ota /* 13263db5b9f7SMasaki Ota * Sometimes the first packet will indicate a multi-packet 13273db5b9f7SMasaki Ota * sequence, but sometimes the next multi-packet would not 13283db5b9f7SMasaki Ota * come. Check for this, and when it happens process the 13293db5b9f7SMasaki Ota * position packet as usual. 13303db5b9f7SMasaki Ota */ 13313db5b9f7SMasaki Ota if (f->is_mp) { 13323db5b9f7SMasaki Ota /* Now process the 1st packet */ 13333db5b9f7SMasaki Ota priv->decode_fields(f, priv->multi_data, psmouse); 13343db5b9f7SMasaki Ota } else { 13353db5b9f7SMasaki Ota priv->multi_packet = 0; 13363db5b9f7SMasaki Ota } 13373db5b9f7SMasaki Ota } 13383db5b9f7SMasaki Ota 13393db5b9f7SMasaki Ota /* 13403db5b9f7SMasaki Ota * "f.is_mp" would always be '0' after merging the 1st and 2nd packet. 13413db5b9f7SMasaki Ota * When it is set, it means 2nd packet comes without 1st packet come. 13423db5b9f7SMasaki Ota */ 13433db5b9f7SMasaki Ota if (f->is_mp) 13443db5b9f7SMasaki Ota return; 13453db5b9f7SMasaki Ota 13463db5b9f7SMasaki Ota /* Save the first packet */ 13473db5b9f7SMasaki Ota if (!priv->multi_packet && f->first_mp) { 13483db5b9f7SMasaki Ota priv->multi_packet = 1; 13493db5b9f7SMasaki Ota memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 13503db5b9f7SMasaki Ota return; 13513db5b9f7SMasaki Ota } 13523db5b9f7SMasaki Ota 13533db5b9f7SMasaki Ota priv->multi_packet = 0; 13543db5b9f7SMasaki Ota 1355864db929SPaul Donohue /* Report trackstick */ 1356864db929SPaul Donohue if (alps_get_pkt_id_ss4_v2(packet) == SS4_PACKET_ID_STICK) { 13577229c58cSPaul Donohue if (!(priv->flags & ALPS_DUALPOINT)) { 13587229c58cSPaul Donohue psmouse_warn(psmouse, 13597229c58cSPaul Donohue "Rejected trackstick packet from non DualPoint device"); 13607229c58cSPaul Donohue return; 13617229c58cSPaul Donohue } 13627229c58cSPaul Donohue 136323fce365SPaul Donohue input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet)); 136423fce365SPaul Donohue input_report_rel(dev2, REL_Y, SS4_TS_Y_V2(packet)); 136523fce365SPaul Donohue input_report_abs(dev2, ABS_PRESSURE, SS4_TS_Z_V2(packet)); 13667229c58cSPaul Donohue 1367864db929SPaul Donohue input_report_key(dev2, BTN_LEFT, f->ts_left); 1368864db929SPaul Donohue input_report_key(dev2, BTN_RIGHT, f->ts_right); 1369864db929SPaul Donohue input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 13707229c58cSPaul Donohue 1371864db929SPaul Donohue input_sync(dev2); 1372864db929SPaul Donohue return; 1373864db929SPaul Donohue } 1374864db929SPaul Donohue 1375864db929SPaul Donohue /* Report touchpad */ 13763db5b9f7SMasaki Ota alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4); 13773db5b9f7SMasaki Ota 13783db5b9f7SMasaki Ota input_mt_report_finger_count(dev, f->fingers); 13793db5b9f7SMasaki Ota 13803db5b9f7SMasaki Ota input_report_key(dev, BTN_LEFT, f->left); 13813db5b9f7SMasaki Ota input_report_key(dev, BTN_RIGHT, f->right); 13823db5b9f7SMasaki Ota input_report_key(dev, BTN_MIDDLE, f->middle); 13833db5b9f7SMasaki Ota 13843db5b9f7SMasaki Ota input_report_abs(dev, ABS_PRESSURE, f->pressure); 13853db5b9f7SMasaki Ota input_sync(dev); 13863db5b9f7SMasaki Ota } 13873db5b9f7SMasaki Ota 13883db5b9f7SMasaki Ota static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) 13893db5b9f7SMasaki Ota { 13903db5b9f7SMasaki Ota if (psmouse->pktcnt == 4 && ((psmouse->packet[3] & 0x08) != 0x08)) 13913db5b9f7SMasaki Ota return false; 13923db5b9f7SMasaki Ota if (psmouse->pktcnt == 6 && ((psmouse->packet[5] & 0x10) != 0x0)) 13933db5b9f7SMasaki Ota return false; 13943db5b9f7SMasaki Ota return true; 13953db5b9f7SMasaki Ota } 13963db5b9f7SMasaki Ota 139704aae283SPali Rohár static DEFINE_MUTEX(alps_mutex); 139804aae283SPali Rohár 139904aae283SPali Rohár static void alps_register_bare_ps2_mouse(struct work_struct *work) 140004aae283SPali Rohár { 140104aae283SPali Rohár struct alps_data *priv = 140204aae283SPali Rohár container_of(work, struct alps_data, dev3_register_work.work); 140304aae283SPali Rohár struct psmouse *psmouse = priv->psmouse; 140404aae283SPali Rohár struct input_dev *dev3; 140504aae283SPali Rohár int error = 0; 140604aae283SPali Rohár 140704aae283SPali Rohár mutex_lock(&alps_mutex); 140804aae283SPali Rohár 140904aae283SPali Rohár if (priv->dev3) 141004aae283SPali Rohár goto out; 141104aae283SPali Rohár 141204aae283SPali Rohár dev3 = input_allocate_device(); 141304aae283SPali Rohár if (!dev3) { 141404aae283SPali Rohár psmouse_err(psmouse, "failed to allocate secondary device\n"); 141504aae283SPali Rohár error = -ENOMEM; 141604aae283SPali Rohár goto out; 141704aae283SPali Rohár } 141804aae283SPali Rohár 141904aae283SPali Rohár snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s", 142004aae283SPali Rohár psmouse->ps2dev.serio->phys, 142104aae283SPali Rohár (priv->dev2 ? "input2" : "input1")); 142204aae283SPali Rohár dev3->phys = priv->phys3; 142304aae283SPali Rohár 142404aae283SPali Rohár /* 142504aae283SPali Rohár * format of input device name is: "protocol vendor name" 142604aae283SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 142704aae283SPali Rohár */ 142804aae283SPali Rohár dev3->name = "PS/2 ALPS Mouse"; 142904aae283SPali Rohár 143004aae283SPali Rohár dev3->id.bustype = BUS_I8042; 143104aae283SPali Rohár dev3->id.vendor = 0x0002; 143204aae283SPali Rohár dev3->id.product = PSMOUSE_PS2; 143304aae283SPali Rohár dev3->id.version = 0x0000; 143404aae283SPali Rohár dev3->dev.parent = &psmouse->ps2dev.serio->dev; 143504aae283SPali Rohár 143604aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_X); 143704aae283SPali Rohár input_set_capability(dev3, EV_REL, REL_Y); 143804aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_LEFT); 143904aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_RIGHT); 144004aae283SPali Rohár input_set_capability(dev3, EV_KEY, BTN_MIDDLE); 144104aae283SPali Rohár 144204aae283SPali Rohár __set_bit(INPUT_PROP_POINTER, dev3->propbit); 144304aae283SPali Rohár 144404aae283SPali Rohár error = input_register_device(dev3); 144504aae283SPali Rohár if (error) { 144604aae283SPali Rohár psmouse_err(psmouse, 144704aae283SPali Rohár "failed to register secondary device: %d\n", 144804aae283SPali Rohár error); 144904aae283SPali Rohár input_free_device(dev3); 145004aae283SPali Rohár goto out; 145104aae283SPali Rohár } 145204aae283SPali Rohár 145304aae283SPali Rohár priv->dev3 = dev3; 145404aae283SPali Rohár 145504aae283SPali Rohár out: 145604aae283SPali Rohár /* 145704aae283SPali Rohár * Save the error code so that we can detect that we 145804aae283SPali Rohár * already tried to create the device. 145904aae283SPali Rohár */ 146004aae283SPali Rohár if (error) 146104aae283SPali Rohár priv->dev3 = ERR_PTR(error); 146204aae283SPali Rohár 146304aae283SPali Rohár mutex_unlock(&alps_mutex); 146404aae283SPali Rohár } 146504aae283SPali Rohár 146659c30afbSHans de Goede static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 14671d9f2626SSebastian Kapfer unsigned char packet[], 14681d9f2626SSebastian Kapfer bool report_buttons) 14691d9f2626SSebastian Kapfer { 147059c30afbSHans de Goede struct alps_data *priv = psmouse->private; 14716bcca19fSHans de Goede struct input_dev *dev, *dev2 = NULL; 147259c30afbSHans de Goede 1473e3a79212SHans de Goede /* Figure out which device to use to report the bare packet */ 1474e3a79212SHans de Goede if (priv->proto_version == ALPS_PROTO_V2 && 1475e3a79212SHans de Goede (priv->flags & ALPS_DUALPOINT)) { 1476e3a79212SHans de Goede /* On V2 devices the DualPoint Stick reports bare packets */ 1477e3a79212SHans de Goede dev = priv->dev2; 14786bcca19fSHans de Goede dev2 = psmouse->dev; 1479e3a79212SHans de Goede } else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) { 148059c30afbSHans de Goede /* Register dev3 mouse if we received PS/2 packet first time */ 148159c30afbSHans de Goede if (!IS_ERR(priv->dev3)) 148259c30afbSHans de Goede psmouse_queue_work(psmouse, &priv->dev3_register_work, 148359c30afbSHans de Goede 0); 148459c30afbSHans de Goede return; 148559c30afbSHans de Goede } else { 148659c30afbSHans de Goede dev = priv->dev3; 148759c30afbSHans de Goede } 148859c30afbSHans de Goede 14891d9f2626SSebastian Kapfer if (report_buttons) 14906bcca19fSHans de Goede alps_report_buttons(dev, dev2, 14911d9f2626SSebastian Kapfer packet[0] & 1, packet[0] & 2, packet[0] & 4); 14921d9f2626SSebastian Kapfer 14931ef85805SDmitry Torokhov psmouse_report_standard_motion(dev, packet); 14941d9f2626SSebastian Kapfer 149504aae283SPali Rohár input_sync(dev); 14961d9f2626SSebastian Kapfer } 14971d9f2626SSebastian Kapfer 14981d9f2626SSebastian Kapfer static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 14991da177e4SLinus Torvalds { 15001da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 15011da177e4SLinus Torvalds 15021d9f2626SSebastian Kapfer if (psmouse->pktcnt < 6) 15031d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 15041d9f2626SSebastian Kapfer 15051d9f2626SSebastian Kapfer if (psmouse->pktcnt == 6) { 15061d9f2626SSebastian Kapfer /* 15071d9f2626SSebastian Kapfer * Start a timer to flush the packet if it ends up last 15081d9f2626SSebastian Kapfer * 6-byte packet in the stream. Timer needs to fire 15091d9f2626SSebastian Kapfer * psmouse core times out itself. 20 ms should be enough 15101d9f2626SSebastian Kapfer * to decide if we are getting more data or not. 15111d9f2626SSebastian Kapfer */ 15121d9f2626SSebastian Kapfer mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 15131d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 15141d9f2626SSebastian Kapfer } 15151d9f2626SSebastian Kapfer 15161d9f2626SSebastian Kapfer del_timer(&priv->timer); 15171d9f2626SSebastian Kapfer 15181d9f2626SSebastian Kapfer if (psmouse->packet[6] & 0x80) { 15191d9f2626SSebastian Kapfer 15201d9f2626SSebastian Kapfer /* 15211d9f2626SSebastian Kapfer * Highest bit is set - that means we either had 15221d9f2626SSebastian Kapfer * complete ALPS packet and this is start of the 15231d9f2626SSebastian Kapfer * next packet or we got garbage. 15241d9f2626SSebastian Kapfer */ 15251d9f2626SSebastian Kapfer 15261d9f2626SSebastian Kapfer if (((psmouse->packet[3] | 15271d9f2626SSebastian Kapfer psmouse->packet[4] | 15281d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) || 152999df65e7SKevin Cernekee (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1530b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 15313b112923SAndy Shevchenko "refusing packet %4ph (suspected interleaved ps/2)\n", 15323b112923SAndy Shevchenko psmouse->packet + 3); 15331d9f2626SSebastian Kapfer return PSMOUSE_BAD_DATA; 15341d9f2626SSebastian Kapfer } 15351d9f2626SSebastian Kapfer 153624af5cb9SKevin Cernekee priv->process_packet(psmouse); 15371d9f2626SSebastian Kapfer 15381d9f2626SSebastian Kapfer /* Continue with the next packet */ 15391d9f2626SSebastian Kapfer psmouse->packet[0] = psmouse->packet[6]; 15401d9f2626SSebastian Kapfer psmouse->pktcnt = 1; 15411d9f2626SSebastian Kapfer 15421d9f2626SSebastian Kapfer } else { 15431d9f2626SSebastian Kapfer 15441d9f2626SSebastian Kapfer /* 15451d9f2626SSebastian Kapfer * High bit is 0 - that means that we indeed got a PS/2 15461d9f2626SSebastian Kapfer * packet in the middle of ALPS packet. 15471d9f2626SSebastian Kapfer * 15481d9f2626SSebastian Kapfer * There is also possibility that we got 6-byte ALPS 15491d9f2626SSebastian Kapfer * packet followed by 3-byte packet from trackpoint. We 15501d9f2626SSebastian Kapfer * can not distinguish between these 2 scenarios but 1551b5d21704SDmitry Torokhov * because the latter is unlikely to happen in course of 15521d9f2626SSebastian Kapfer * normal operation (user would need to press all 15531d9f2626SSebastian Kapfer * buttons on the pad and start moving trackpoint 15541d9f2626SSebastian Kapfer * without touching the pad surface) we assume former. 15551d9f2626SSebastian Kapfer * Even if we are wrong the wost thing that would happen 15561d9f2626SSebastian Kapfer * the cursor would jump but we should not get protocol 1557b5d21704SDmitry Torokhov * de-synchronization. 15581d9f2626SSebastian Kapfer */ 15591d9f2626SSebastian Kapfer 156059c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 156159c30afbSHans de Goede false); 15621d9f2626SSebastian Kapfer 15631d9f2626SSebastian Kapfer /* 15641d9f2626SSebastian Kapfer * Continue with the standard ALPS protocol handling, 15651d9f2626SSebastian Kapfer * but make sure we won't process it as an interleaved 15661d9f2626SSebastian Kapfer * packet again, which may happen if all buttons are 15671d9f2626SSebastian Kapfer * pressed. To avoid this let's reset the 4th bit which 15681d9f2626SSebastian Kapfer * is normally 1. 15691d9f2626SSebastian Kapfer */ 15701d9f2626SSebastian Kapfer psmouse->packet[3] = psmouse->packet[6] & 0xf7; 15711d9f2626SSebastian Kapfer psmouse->pktcnt = 4; 15721d9f2626SSebastian Kapfer } 15731d9f2626SSebastian Kapfer 15741d9f2626SSebastian Kapfer return PSMOUSE_GOOD_DATA; 15751d9f2626SSebastian Kapfer } 15761d9f2626SSebastian Kapfer 157717a58edcSKees Cook static void alps_flush_packet(struct timer_list *t) 15781d9f2626SSebastian Kapfer { 157917a58edcSKees Cook struct alps_data *priv = from_timer(priv, t, timer); 158017a58edcSKees Cook struct psmouse *psmouse = priv->psmouse; 15811d9f2626SSebastian Kapfer 15821d9f2626SSebastian Kapfer serio_pause_rx(psmouse->ps2dev.serio); 15831d9f2626SSebastian Kapfer 1584b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 15851d9f2626SSebastian Kapfer 15861d9f2626SSebastian Kapfer /* 15871d9f2626SSebastian Kapfer * We did not any more data in reasonable amount of time. 15881d9f2626SSebastian Kapfer * Validate the last 3 bytes and process as a standard 15891d9f2626SSebastian Kapfer * ALPS packet. 15901d9f2626SSebastian Kapfer */ 15911d9f2626SSebastian Kapfer if ((psmouse->packet[3] | 15921d9f2626SSebastian Kapfer psmouse->packet[4] | 15931d9f2626SSebastian Kapfer psmouse->packet[5]) & 0x80) { 1594b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 15953b112923SAndy Shevchenko "refusing packet %3ph (suspected interleaved ps/2)\n", 15963b112923SAndy Shevchenko psmouse->packet + 3); 15971d9f2626SSebastian Kapfer } else { 159824af5cb9SKevin Cernekee priv->process_packet(psmouse); 15991d9f2626SSebastian Kapfer } 16001d9f2626SSebastian Kapfer psmouse->pktcnt = 0; 16011d9f2626SSebastian Kapfer } 16021d9f2626SSebastian Kapfer 16031d9f2626SSebastian Kapfer serio_continue_rx(psmouse->ps2dev.serio); 16041d9f2626SSebastian Kapfer } 16051d9f2626SSebastian Kapfer 16061d9f2626SSebastian Kapfer static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 16071d9f2626SSebastian Kapfer { 16081d9f2626SSebastian Kapfer struct alps_data *priv = psmouse->private; 16091d9f2626SSebastian Kapfer 16104ab8f7f3SPali Rohár /* 16114ab8f7f3SPali Rohár * Check if we are dealing with a bare PS/2 packet, presumably from 16124ab8f7f3SPali Rohár * a device connected to the external PS/2 port. Because bare PS/2 16134ab8f7f3SPali Rohár * protocol does not have enough constant bits to self-synchronize 16144ab8f7f3SPali Rohár * properly we only do this if the device is fully synchronized. 16153db5b9f7SMasaki Ota * Can not distinguish V8's first byte from PS/2 packet's 16164ab8f7f3SPali Rohár */ 16173db5b9f7SMasaki Ota if (priv->proto_version != ALPS_PROTO_V8 && 16183db5b9f7SMasaki Ota !psmouse->out_of_sync_cnt && 16193db5b9f7SMasaki Ota (psmouse->packet[0] & 0xc8) == 0x08) { 16203db5b9f7SMasaki Ota 16211da177e4SLinus Torvalds if (psmouse->pktcnt == 3) { 162259c30afbSHans de Goede alps_report_bare_ps2_packet(psmouse, psmouse->packet, 16231d9f2626SSebastian Kapfer true); 16241da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 16251da177e4SLinus Torvalds } 16261da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 16271da177e4SLinus Torvalds } 16281da177e4SLinus Torvalds 16291d9f2626SSebastian Kapfer /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 16301d9f2626SSebastian Kapfer 163199df65e7SKevin Cernekee if ((priv->flags & ALPS_PS2_INTERLEAVED) && 16321d9f2626SSebastian Kapfer psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 16331d9f2626SSebastian Kapfer return alps_handle_interleaved_ps2(psmouse); 16341d9f2626SSebastian Kapfer } 16351d9f2626SSebastian Kapfer 163699df65e7SKevin Cernekee if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1637b5d21704SDmitry Torokhov psmouse_dbg(psmouse, 1638b5d21704SDmitry Torokhov "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 163999df65e7SKevin Cernekee psmouse->packet[0], priv->mask0, priv->byte0); 16401da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 16411d9f2626SSebastian Kapfer } 16421da177e4SLinus Torvalds 1643b46615feSSeth Forshee /* Bytes 2 - pktsize should have 0 in the highest bit */ 1644a7ef82aeSPali Rohár if (priv->proto_version < ALPS_PROTO_V5 && 164575af9e56SDave Turvene psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 16461d9f2626SSebastian Kapfer (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1647b5d21704SDmitry Torokhov psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1648b5d21704SDmitry Torokhov psmouse->pktcnt - 1, 1649b5d21704SDmitry Torokhov psmouse->packet[psmouse->pktcnt - 1]); 1650a7ef82aeSPali Rohár 1651fb2dd7a6SDmitry Torokhov if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && 1652a7ef82aeSPali Rohár psmouse->pktcnt == psmouse->pktsize) { 1653a7ef82aeSPali Rohár /* 1654a7ef82aeSPali Rohár * Some Dell boxes, such as Latitude E6440 or E7440 1655a7ef82aeSPali Rohár * with closed lid, quite often smash last byte of 1656a7ef82aeSPali Rohár * otherwise valid packet with 0xff. Given that the 1657a7ef82aeSPali Rohár * next packet is very likely to be valid let's 1658a7ef82aeSPali Rohár * report PSMOUSE_FULL_PACKET but not process data, 1659a7ef82aeSPali Rohár * rather than reporting PSMOUSE_BAD_DATA and 1660a7ef82aeSPali Rohár * filling the logs. 1661a7ef82aeSPali Rohár */ 1662a7ef82aeSPali Rohár return PSMOUSE_FULL_PACKET; 1663a7ef82aeSPali Rohár } 1664a7ef82aeSPali Rohár 16651da177e4SLinus Torvalds return PSMOUSE_BAD_DATA; 16661d9f2626SSebastian Kapfer } 16671da177e4SLinus Torvalds 16683db5b9f7SMasaki Ota if ((priv->proto_version == ALPS_PROTO_V7 && 16693db5b9f7SMasaki Ota !alps_is_valid_package_v7(psmouse)) || 16703db5b9f7SMasaki Ota (priv->proto_version == ALPS_PROTO_V8 && 16713db5b9f7SMasaki Ota !alps_is_valid_package_ss4_v2(psmouse))) { 16723808843cSYunkang Tang psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 16733808843cSYunkang Tang psmouse->pktcnt - 1, 16743808843cSYunkang Tang psmouse->packet[psmouse->pktcnt - 1]); 16753808843cSYunkang Tang return PSMOUSE_BAD_DATA; 16763808843cSYunkang Tang } 16773808843cSYunkang Tang 1678b46615feSSeth Forshee if (psmouse->pktcnt == psmouse->pktsize) { 167924af5cb9SKevin Cernekee priv->process_packet(psmouse); 16801da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET; 16811da177e4SLinus Torvalds } 16821da177e4SLinus Torvalds 16831da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA; 16841da177e4SLinus Torvalds } 16851da177e4SLinus Torvalds 168625bded7cSSeth Forshee static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 168725bded7cSSeth Forshee { 168825bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 168925bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 169025bded7cSSeth Forshee int command; 169125bded7cSSeth Forshee unsigned char *param; 169225bded7cSSeth Forshee unsigned char dummy[4]; 169325bded7cSSeth Forshee 169425bded7cSSeth Forshee BUG_ON(nibble > 0xf); 169525bded7cSSeth Forshee 169625bded7cSSeth Forshee command = priv->nibble_commands[nibble].command; 169725bded7cSSeth Forshee param = (command & 0x0f00) ? 169825bded7cSSeth Forshee dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 169925bded7cSSeth Forshee 170025bded7cSSeth Forshee if (ps2_command(ps2dev, param, command)) 170125bded7cSSeth Forshee return -1; 170225bded7cSSeth Forshee 170325bded7cSSeth Forshee return 0; 170425bded7cSSeth Forshee } 170525bded7cSSeth Forshee 170625bded7cSSeth Forshee static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 170725bded7cSSeth Forshee { 170825bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 170925bded7cSSeth Forshee struct alps_data *priv = psmouse->private; 171025bded7cSSeth Forshee int i, nibble; 171125bded7cSSeth Forshee 171225bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, priv->addr_command)) 171325bded7cSSeth Forshee return -1; 171425bded7cSSeth Forshee 171525bded7cSSeth Forshee for (i = 12; i >= 0; i -= 4) { 171625bded7cSSeth Forshee nibble = (addr >> i) & 0xf; 171725bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, nibble)) 171825bded7cSSeth Forshee return -1; 171925bded7cSSeth Forshee } 172025bded7cSSeth Forshee 172125bded7cSSeth Forshee return 0; 172225bded7cSSeth Forshee } 172325bded7cSSeth Forshee 172425bded7cSSeth Forshee static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 172525bded7cSSeth Forshee { 172625bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 172725bded7cSSeth Forshee unsigned char param[4]; 172825bded7cSSeth Forshee 172925bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 173025bded7cSSeth Forshee return -1; 173125bded7cSSeth Forshee 173225bded7cSSeth Forshee /* 173325bded7cSSeth Forshee * The address being read is returned in the first two bytes 173425bded7cSSeth Forshee * of the result. Check that this address matches the expected 173525bded7cSSeth Forshee * address. 173625bded7cSSeth Forshee */ 173725bded7cSSeth Forshee if (addr != ((param[0] << 8) | param[1])) 173825bded7cSSeth Forshee return -1; 173925bded7cSSeth Forshee 174025bded7cSSeth Forshee return param[2]; 174125bded7cSSeth Forshee } 174225bded7cSSeth Forshee 174325bded7cSSeth Forshee static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 174425bded7cSSeth Forshee { 174525bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 174625bded7cSSeth Forshee return -1; 174725bded7cSSeth Forshee return __alps_command_mode_read_reg(psmouse, addr); 174825bded7cSSeth Forshee } 174925bded7cSSeth Forshee 175025bded7cSSeth Forshee static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 175125bded7cSSeth Forshee { 175225bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 175325bded7cSSeth Forshee return -1; 175425bded7cSSeth Forshee if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 175525bded7cSSeth Forshee return -1; 175625bded7cSSeth Forshee return 0; 175725bded7cSSeth Forshee } 175825bded7cSSeth Forshee 175925bded7cSSeth Forshee static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 176025bded7cSSeth Forshee u8 value) 176125bded7cSSeth Forshee { 176225bded7cSSeth Forshee if (alps_command_mode_set_addr(psmouse, addr)) 176325bded7cSSeth Forshee return -1; 176425bded7cSSeth Forshee return __alps_command_mode_write_reg(psmouse, value); 176525bded7cSSeth Forshee } 176625bded7cSSeth Forshee 176724ba9707SKevin Cernekee static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 176824ba9707SKevin Cernekee int repeated_command, unsigned char *param) 176924ba9707SKevin Cernekee { 177024ba9707SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 177124ba9707SKevin Cernekee 177224ba9707SKevin Cernekee param[0] = 0; 177324ba9707SKevin Cernekee if (init_command && ps2_command(ps2dev, param, init_command)) 177424ba9707SKevin Cernekee return -EIO; 177524ba9707SKevin Cernekee 177624ba9707SKevin Cernekee if (ps2_command(ps2dev, NULL, repeated_command) || 177724ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command) || 177824ba9707SKevin Cernekee ps2_command(ps2dev, NULL, repeated_command)) 177924ba9707SKevin Cernekee return -EIO; 178024ba9707SKevin Cernekee 178124ba9707SKevin Cernekee param[0] = param[1] = param[2] = 0xff; 178224ba9707SKevin Cernekee if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 178324ba9707SKevin Cernekee return -EIO; 178424ba9707SKevin Cernekee 178539fbe585SDmitry Torokhov psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 178639fbe585SDmitry Torokhov repeated_command, param); 178724ba9707SKevin Cernekee return 0; 178824ba9707SKevin Cernekee } 178924ba9707SKevin Cernekee 17903808843cSYunkang Tang static bool alps_check_valid_firmware_id(unsigned char id[]) 17913808843cSYunkang Tang { 17923808843cSYunkang Tang if (id[0] == 0x73) 17933808843cSYunkang Tang return true; 17943808843cSYunkang Tang 17953808843cSYunkang Tang if (id[0] == 0x88 && 17963808843cSYunkang Tang (id[1] == 0x07 || 17973808843cSYunkang Tang id[1] == 0x08 || 17983808843cSYunkang Tang (id[1] & 0xf0) == 0xb0 || 17993808843cSYunkang Tang (id[1] & 0xf0) == 0xc0)) { 18003808843cSYunkang Tang return true; 18013808843cSYunkang Tang } 18023808843cSYunkang Tang 18033808843cSYunkang Tang return false; 18043808843cSYunkang Tang } 18053808843cSYunkang Tang 1806d18e53fcSKevin Cernekee static int alps_enter_command_mode(struct psmouse *psmouse) 180725bded7cSSeth Forshee { 180825bded7cSSeth Forshee unsigned char param[4]; 180925bded7cSSeth Forshee 181024ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 181125bded7cSSeth Forshee psmouse_err(psmouse, "failed to enter command mode\n"); 181225bded7cSSeth Forshee return -1; 181325bded7cSSeth Forshee } 181425bded7cSSeth Forshee 18153808843cSYunkang Tang if (!alps_check_valid_firmware_id(param)) { 181625bded7cSSeth Forshee psmouse_dbg(psmouse, 181724ba9707SKevin Cernekee "unknown response while entering command mode\n"); 181825bded7cSSeth Forshee return -1; 181925bded7cSSeth Forshee } 182025bded7cSSeth Forshee return 0; 182125bded7cSSeth Forshee } 182225bded7cSSeth Forshee 182325bded7cSSeth Forshee static inline int alps_exit_command_mode(struct psmouse *psmouse) 182425bded7cSSeth Forshee { 182525bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 182625bded7cSSeth Forshee if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 182725bded7cSSeth Forshee return -1; 182825bded7cSSeth Forshee return 0; 182925bded7cSSeth Forshee } 183025bded7cSSeth Forshee 18311da177e4SLinus Torvalds /* 18321da177e4SLinus Torvalds * For DualPoint devices select the device that should respond to 18331da177e4SLinus Torvalds * subsequent commands. It looks like glidepad is behind stickpointer, 18341da177e4SLinus Torvalds * I'd thought it would be other way around... 18351da177e4SLinus Torvalds */ 183625bded7cSSeth Forshee static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 18371da177e4SLinus Torvalds { 18381da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 18391da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 18401da177e4SLinus Torvalds 18411da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, cmd) || 18421da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 18431da177e4SLinus Torvalds ps2_command(ps2dev, NULL, cmd) || 18441da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 18451da177e4SLinus Torvalds return -1; 18461da177e4SLinus Torvalds 18471da177e4SLinus Torvalds /* we may get 3 more bytes, just ignore them */ 1848c611763dSDmitry Torokhov ps2_drain(ps2dev, 3, 100); 18491da177e4SLinus Torvalds 18501da177e4SLinus Torvalds return 0; 18511da177e4SLinus Torvalds } 18521da177e4SLinus Torvalds 185325bded7cSSeth Forshee static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 18541da177e4SLinus Torvalds { 18551da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 18561da177e4SLinus Torvalds 18571da177e4SLinus Torvalds /* Try ALPS magic knock - 4 disable before enable */ 18581da177e4SLinus Torvalds if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18591da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18601da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18611da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 18621da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 18631da177e4SLinus Torvalds return -1; 18641da177e4SLinus Torvalds 18651da177e4SLinus Torvalds /* 18661da177e4SLinus Torvalds * Switch mouse to poll (remote) mode so motion data will not 18671da177e4SLinus Torvalds * get in our way 18681da177e4SLinus Torvalds */ 1869ad56814fSGuenter Roeck return ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 18701da177e4SLinus Torvalds } 18711da177e4SLinus Torvalds 187295f75e91SYunkang Tang static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 187395f75e91SYunkang Tang { 187495f75e91SYunkang Tang int i, nibble; 187595f75e91SYunkang Tang 187695f75e91SYunkang Tang /* 187795f75e91SYunkang Tang * b0-b11 are valid bits, send sequence is inverse. 187895f75e91SYunkang Tang * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 187995f75e91SYunkang Tang */ 188095f75e91SYunkang Tang for (i = 0; i <= 8; i += 4) { 188195f75e91SYunkang Tang nibble = (word >> i) & 0xf; 188295f75e91SYunkang Tang if (alps_command_mode_send_nibble(psmouse, nibble)) 188395f75e91SYunkang Tang return -1; 188495f75e91SYunkang Tang } 188595f75e91SYunkang Tang 188695f75e91SYunkang Tang return 0; 188795f75e91SYunkang Tang } 188895f75e91SYunkang Tang 188995f75e91SYunkang Tang static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 189095f75e91SYunkang Tang u16 addr, u16 value) 189195f75e91SYunkang Tang { 189295f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 189395f75e91SYunkang Tang 189495f75e91SYunkang Tang /* 0x0A0 is the command to write the word */ 189595f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 189695f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, 0x0A0) || 189795f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, addr) || 189895f75e91SYunkang Tang alps_monitor_mode_send_word(psmouse, value) || 189995f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 190095f75e91SYunkang Tang return -1; 190195f75e91SYunkang Tang 190295f75e91SYunkang Tang return 0; 190395f75e91SYunkang Tang } 190495f75e91SYunkang Tang 190595f75e91SYunkang Tang static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 190695f75e91SYunkang Tang { 190795f75e91SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 190895f75e91SYunkang Tang 190995f75e91SYunkang Tang if (enable) { 191095f75e91SYunkang Tang /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 191195f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 191295f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 191395f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 191495f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 191595f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 191695f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 191795f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 191895f75e91SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 191995f75e91SYunkang Tang return -1; 192095f75e91SYunkang Tang } else { 192195f75e91SYunkang Tang /* EC to exit monitor mode */ 192295f75e91SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 192395f75e91SYunkang Tang return -1; 192495f75e91SYunkang Tang } 192595f75e91SYunkang Tang 192695f75e91SYunkang Tang return 0; 192795f75e91SYunkang Tang } 192895f75e91SYunkang Tang 192995f75e91SYunkang Tang static int alps_absolute_mode_v6(struct psmouse *psmouse) 193095f75e91SYunkang Tang { 193195f75e91SYunkang Tang u16 reg_val = 0x181; 193295f75e91SYunkang Tang int ret = -1; 193395f75e91SYunkang Tang 193495f75e91SYunkang Tang /* enter monitor mode, to write the register */ 193595f75e91SYunkang Tang if (alps_monitor_mode(psmouse, true)) 193695f75e91SYunkang Tang return -1; 193795f75e91SYunkang Tang 193895f75e91SYunkang Tang ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 193995f75e91SYunkang Tang 194095f75e91SYunkang Tang if (alps_monitor_mode(psmouse, false)) 194195f75e91SYunkang Tang ret = -1; 194295f75e91SYunkang Tang 194395f75e91SYunkang Tang return ret; 194495f75e91SYunkang Tang } 194595f75e91SYunkang Tang 19461da177e4SLinus Torvalds static int alps_get_status(struct psmouse *psmouse, char *param) 19471da177e4SLinus Torvalds { 19481da177e4SLinus Torvalds /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 194924ba9707SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 19501da177e4SLinus Torvalds return -1; 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds return 0; 19531da177e4SLinus Torvalds } 19541da177e4SLinus Torvalds 19551da177e4SLinus Torvalds /* 19561da177e4SLinus Torvalds * Turn touchpad tapping on or off. The sequences are: 19571da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 19581da177e4SLinus Torvalds * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 19591da177e4SLinus Torvalds * My guess that 0xE9 (GetInfo) is here as a sync point. 19601da177e4SLinus Torvalds * For models that also have stickpointer (DualPoints) its tapping 19611da177e4SLinus Torvalds * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 19621da177e4SLinus Torvalds * we don't fiddle with it. 19631da177e4SLinus Torvalds */ 19641da177e4SLinus Torvalds static int alps_tap_mode(struct psmouse *psmouse, int enable) 19651da177e4SLinus Torvalds { 19661da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev; 19671da177e4SLinus Torvalds int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 19681da177e4SLinus Torvalds unsigned char tap_arg = enable ? 0x0A : 0x00; 19691da177e4SLinus Torvalds unsigned char param[4]; 19701da177e4SLinus Torvalds 19711da177e4SLinus Torvalds if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 19721da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 19731da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 19741da177e4SLinus Torvalds ps2_command(ps2dev, &tap_arg, cmd)) 19751da177e4SLinus Torvalds return -1; 19761da177e4SLinus Torvalds 19771da177e4SLinus Torvalds if (alps_get_status(psmouse, param)) 19781da177e4SLinus Torvalds return -1; 19791da177e4SLinus Torvalds 19801da177e4SLinus Torvalds return 0; 19811da177e4SLinus Torvalds } 19821da177e4SLinus Torvalds 1983f0d5c6f4SDmitry Torokhov /* 1984f0d5c6f4SDmitry Torokhov * alps_poll() - poll the touchpad for current motion packet. 1985f0d5c6f4SDmitry Torokhov * Used in resync. 1986f0d5c6f4SDmitry Torokhov */ 1987f0d5c6f4SDmitry Torokhov static int alps_poll(struct psmouse *psmouse) 1988f0d5c6f4SDmitry Torokhov { 1989f0d5c6f4SDmitry Torokhov struct alps_data *priv = psmouse->private; 1990b46615feSSeth Forshee unsigned char buf[sizeof(psmouse->packet)]; 1991b7802c5cSDmitry Torokhov bool poll_failed; 1992f0d5c6f4SDmitry Torokhov 199399df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 199425bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true); 1995f0d5c6f4SDmitry Torokhov 1996f0d5c6f4SDmitry Torokhov poll_failed = ps2_command(&psmouse->ps2dev, buf, 1997f0d5c6f4SDmitry Torokhov PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1998f0d5c6f4SDmitry Torokhov 199999df65e7SKevin Cernekee if (priv->flags & ALPS_PASS) 200025bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false); 2001f0d5c6f4SDmitry Torokhov 200299df65e7SKevin Cernekee if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 2003f0d5c6f4SDmitry Torokhov return -1; 2004f0d5c6f4SDmitry Torokhov 2005f0d5c6f4SDmitry Torokhov if ((psmouse->badbyte & 0xc8) == 0x08) { 2006f0d5c6f4SDmitry Torokhov /* 2007f0d5c6f4SDmitry Torokhov * Poll the track stick ... 2008f0d5c6f4SDmitry Torokhov */ 2009f0d5c6f4SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 2010f0d5c6f4SDmitry Torokhov return -1; 2011f0d5c6f4SDmitry Torokhov } 2012f0d5c6f4SDmitry Torokhov 2013f0d5c6f4SDmitry Torokhov memcpy(psmouse->packet, buf, sizeof(buf)); 2014f0d5c6f4SDmitry Torokhov return 0; 2015f0d5c6f4SDmitry Torokhov } 2016f0d5c6f4SDmitry Torokhov 201725bded7cSSeth Forshee static int alps_hw_init_v1_v2(struct psmouse *psmouse) 20181da177e4SLinus Torvalds { 20191da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 20201da177e4SLinus Torvalds 202199df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 202225bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, true)) { 20231da177e4SLinus Torvalds return -1; 2024b7802c5cSDmitry Torokhov } 20251da177e4SLinus Torvalds 2026b7802c5cSDmitry Torokhov if (alps_tap_mode(psmouse, true)) { 2027b5d21704SDmitry Torokhov psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 20281da177e4SLinus Torvalds return -1; 2029963f626dSPeter Osterlund } 20301da177e4SLinus Torvalds 203125bded7cSSeth Forshee if (alps_absolute_mode_v1_v2(psmouse)) { 2032b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable absolute mode\n"); 20331da177e4SLinus Torvalds return -1; 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 203699df65e7SKevin Cernekee if ((priv->flags & ALPS_PASS) && 203725bded7cSSeth Forshee alps_passthrough_mode_v2(psmouse, false)) { 20381da177e4SLinus Torvalds return -1; 2039b7802c5cSDmitry Torokhov } 20401da177e4SLinus Torvalds 20411e0c5b12SDmitry Torokhov /* ALPS needs stream mode, otherwise it won't report any data */ 20421e0c5b12SDmitry Torokhov if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 2043b5d21704SDmitry Torokhov psmouse_err(psmouse, "Failed to enable stream mode\n"); 20441e0c5b12SDmitry Torokhov return -1; 20451e0c5b12SDmitry Torokhov } 20461e0c5b12SDmitry Torokhov 20471e0c5b12SDmitry Torokhov return 0; 20481e0c5b12SDmitry Torokhov } 20491e0c5b12SDmitry Torokhov 2050d91abc21SPali Rohár /* Must be in passthrough mode when calling this function */ 2051d91abc21SPali Rohár static int alps_trackstick_enter_extended_mode_v3_v6(struct psmouse *psmouse) 205295f75e91SYunkang Tang { 205395f75e91SYunkang Tang unsigned char param[2] = {0xC8, 0x14}; 205495f75e91SYunkang Tang 205595f75e91SYunkang Tang if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 205695f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 205795f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 205895f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 205995f75e91SYunkang Tang ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 206095f75e91SYunkang Tang return -1; 206195f75e91SYunkang Tang 2062d91abc21SPali Rohár return 0; 2063d91abc21SPali Rohár } 2064d91abc21SPali Rohár 2065d91abc21SPali Rohár static int alps_hw_init_v6(struct psmouse *psmouse) 2066d91abc21SPali Rohár { 2067d91abc21SPali Rohár int ret; 2068d91abc21SPali Rohár 2069d91abc21SPali Rohár /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 2070d91abc21SPali Rohár if (alps_passthrough_mode_v2(psmouse, true)) 2071d91abc21SPali Rohár return -1; 2072d91abc21SPali Rohár 2073d91abc21SPali Rohár ret = alps_trackstick_enter_extended_mode_v3_v6(psmouse); 2074d91abc21SPali Rohár 207595f75e91SYunkang Tang if (alps_passthrough_mode_v2(psmouse, false)) 207695f75e91SYunkang Tang return -1; 207795f75e91SYunkang Tang 2078d91abc21SPali Rohár if (ret) 2079d91abc21SPali Rohár return ret; 2080d91abc21SPali Rohár 208195f75e91SYunkang Tang if (alps_absolute_mode_v6(psmouse)) { 208295f75e91SYunkang Tang psmouse_err(psmouse, "Failed to enable absolute mode\n"); 208395f75e91SYunkang Tang return -1; 208495f75e91SYunkang Tang } 208595f75e91SYunkang Tang 208695f75e91SYunkang Tang return 0; 208795f75e91SYunkang Tang } 208895f75e91SYunkang Tang 208925bded7cSSeth Forshee /* 2090cd401204SKevin Cernekee * Enable or disable passthrough mode to the trackstick. 209125bded7cSSeth Forshee */ 2092cd401204SKevin Cernekee static int alps_passthrough_mode_v3(struct psmouse *psmouse, 2093cd401204SKevin Cernekee int reg_base, bool enable) 209425bded7cSSeth Forshee { 2095cd401204SKevin Cernekee int reg_val, ret = -1; 209625bded7cSSeth Forshee 2097d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 209825bded7cSSeth Forshee return -1; 209925bded7cSSeth Forshee 2100cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 2101cd401204SKevin Cernekee if (reg_val == -1) 2102cd401204SKevin Cernekee goto error; 2103cd401204SKevin Cernekee 210425bded7cSSeth Forshee if (enable) 210525bded7cSSeth Forshee reg_val |= 0x01; 210625bded7cSSeth Forshee else 210725bded7cSSeth Forshee reg_val &= ~0x01; 210825bded7cSSeth Forshee 2109cd401204SKevin Cernekee ret = __alps_command_mode_write_reg(psmouse, reg_val); 211025bded7cSSeth Forshee 2111cd401204SKevin Cernekee error: 2112cd401204SKevin Cernekee if (alps_exit_command_mode(psmouse)) 2113cd401204SKevin Cernekee ret = -1; 2114cd401204SKevin Cernekee return ret; 211525bded7cSSeth Forshee } 211625bded7cSSeth Forshee 211725bded7cSSeth Forshee /* Must be in command mode when calling this function */ 211825bded7cSSeth Forshee static int alps_absolute_mode_v3(struct psmouse *psmouse) 211925bded7cSSeth Forshee { 212025bded7cSSeth Forshee int reg_val; 212125bded7cSSeth Forshee 212225bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 212325bded7cSSeth Forshee if (reg_val == -1) 212425bded7cSSeth Forshee return -1; 212525bded7cSSeth Forshee 212625bded7cSSeth Forshee reg_val |= 0x06; 212725bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 212825bded7cSSeth Forshee return -1; 212925bded7cSSeth Forshee 213025bded7cSSeth Forshee return 0; 213125bded7cSSeth Forshee } 213225bded7cSSeth Forshee 2133dae928ecSPali Rohár static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base) 213425bded7cSSeth Forshee { 2135cd401204SKevin Cernekee int ret = -EIO, reg_val; 213625bded7cSSeth Forshee 2137d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 213825bded7cSSeth Forshee goto error; 213925bded7cSSeth Forshee 2140cd401204SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 214125bded7cSSeth Forshee if (reg_val == -1) 214225bded7cSSeth Forshee goto error; 2143cd401204SKevin Cernekee 2144cd401204SKevin Cernekee /* bit 7: trackstick is present */ 2145cd401204SKevin Cernekee ret = reg_val & 0x80 ? 0 : -ENODEV; 2146cd401204SKevin Cernekee 2147cd401204SKevin Cernekee error: 2148cd401204SKevin Cernekee alps_exit_command_mode(psmouse); 2149cd401204SKevin Cernekee return ret; 2150cd401204SKevin Cernekee } 2151cd401204SKevin Cernekee 2152cd401204SKevin Cernekee static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 2153cd401204SKevin Cernekee { 2154cd401204SKevin Cernekee int ret = 0; 2155d91abc21SPali Rohár int reg_val; 2156cd401204SKevin Cernekee unsigned char param[4]; 2157cd401204SKevin Cernekee 2158d91abc21SPali Rohár /* 2159d91abc21SPali Rohár * We need to configure trackstick to report data for touchpad in 2160d91abc21SPali Rohár * extended format. And also we need to tell touchpad to expect data 2161d91abc21SPali Rohár * from trackstick in extended format. Without this configuration 2162d91abc21SPali Rohár * trackstick packets sent from touchpad are in basic format which is 2163d91abc21SPali Rohár * different from what we expect. 2164d91abc21SPali Rohár */ 2165d91abc21SPali Rohár 2166cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 2167cd401204SKevin Cernekee return -EIO; 216825bded7cSSeth Forshee 216925bded7cSSeth Forshee /* 217025bded7cSSeth Forshee * E7 report for the trackstick 217125bded7cSSeth Forshee * 217225bded7cSSeth Forshee * There have been reports of failures to seem to trace back 217325bded7cSSeth Forshee * to the above trackstick check failing. When these occur 217425bded7cSSeth Forshee * this E7 report fails, so when that happens we continue 217525bded7cSSeth Forshee * with the assumption that there isn't a trackstick after 217625bded7cSSeth Forshee * all. 217725bded7cSSeth Forshee */ 2178cd401204SKevin Cernekee if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 2179a09221e8SDmitry Torokhov psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); 2180cd401204SKevin Cernekee ret = -ENODEV; 218125bded7cSSeth Forshee } else { 218239fbe585SDmitry Torokhov psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 2183d91abc21SPali Rohár if (alps_trackstick_enter_extended_mode_v3_v6(psmouse)) { 2184d91abc21SPali Rohár psmouse_err(psmouse, "Failed to enter into trackstick extended mode\n"); 2185cd401204SKevin Cernekee ret = -EIO; 2186cd401204SKevin Cernekee } 2187d91abc21SPali Rohár } 2188cd401204SKevin Cernekee 2189cd401204SKevin Cernekee if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 2190d91abc21SPali Rohár return -EIO; 2191d91abc21SPali Rohár 2192d91abc21SPali Rohár if (ret) 2193d91abc21SPali Rohár return ret; 2194d91abc21SPali Rohár 2195d91abc21SPali Rohár if (alps_enter_command_mode(psmouse)) 2196d91abc21SPali Rohár return -EIO; 2197d91abc21SPali Rohár 2198d91abc21SPali Rohár reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 2199d91abc21SPali Rohár if (reg_val == -1) { 2200cd401204SKevin Cernekee ret = -EIO; 2201d91abc21SPali Rohár } else { 2202d91abc21SPali Rohár /* 2203d91abc21SPali Rohár * Tell touchpad that trackstick is now in extended mode. 2204d91abc21SPali Rohár * If bit 1 isn't set the packet format is different. 2205d91abc21SPali Rohár */ 2206d91abc21SPali Rohár reg_val |= BIT(1); 2207d91abc21SPali Rohár if (__alps_command_mode_write_reg(psmouse, reg_val)) 2208d91abc21SPali Rohár ret = -EIO; 2209d91abc21SPali Rohár } 2210d91abc21SPali Rohár 2211d91abc21SPali Rohár if (alps_exit_command_mode(psmouse)) 2212d91abc21SPali Rohár return -EIO; 2213cd401204SKevin Cernekee 2214cd401204SKevin Cernekee return ret; 2215cd401204SKevin Cernekee } 2216cd401204SKevin Cernekee 2217cd401204SKevin Cernekee static int alps_hw_init_v3(struct psmouse *psmouse) 2218cd401204SKevin Cernekee { 22194b1af853SPali Rohár struct alps_data *priv = psmouse->private; 2220cd401204SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 2221cd401204SKevin Cernekee int reg_val; 2222cd401204SKevin Cernekee unsigned char param[4]; 2223cd401204SKevin Cernekee 22244b1af853SPali Rohár if ((priv->flags & ALPS_DUALPOINT) && 2225cd401204SKevin Cernekee alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 2226cd401204SKevin Cernekee goto error; 2227cd401204SKevin Cernekee 2228d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 2229cd401204SKevin Cernekee alps_absolute_mode_v3(psmouse)) { 223025bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 223125bded7cSSeth Forshee goto error; 223225bded7cSSeth Forshee } 223325bded7cSSeth Forshee 223425bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 223525bded7cSSeth Forshee if (reg_val == -1) 223625bded7cSSeth Forshee goto error; 223725bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 223825bded7cSSeth Forshee goto error; 223925bded7cSSeth Forshee 224025bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 224125bded7cSSeth Forshee if (reg_val == -1) 224225bded7cSSeth Forshee goto error; 224325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 224425bded7cSSeth Forshee goto error; 224525bded7cSSeth Forshee 224625bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 224725bded7cSSeth Forshee goto error; 224825bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x04)) 224925bded7cSSeth Forshee goto error; 225025bded7cSSeth Forshee 225125bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 225225bded7cSSeth Forshee goto error; 225325bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, 0x03)) 225425bded7cSSeth Forshee goto error; 225525bded7cSSeth Forshee 225625bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 225725bded7cSSeth Forshee goto error; 225825bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 225925bded7cSSeth Forshee goto error; 226025bded7cSSeth Forshee 226125bded7cSSeth Forshee if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 226225bded7cSSeth Forshee goto error; 226325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 226425bded7cSSeth Forshee goto error; 226525bded7cSSeth Forshee 226625bded7cSSeth Forshee alps_exit_command_mode(psmouse); 226725bded7cSSeth Forshee 226825bded7cSSeth Forshee /* Set rate and enable data reporting */ 226925bded7cSSeth Forshee param[0] = 0x64; 227025bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 227125bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 227225bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 227325bded7cSSeth Forshee return -1; 227425bded7cSSeth Forshee } 227525bded7cSSeth Forshee 227625bded7cSSeth Forshee return 0; 227725bded7cSSeth Forshee 227825bded7cSSeth Forshee error: 227925bded7cSSeth Forshee /* 228025bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 228125bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 228225bded7cSSeth Forshee * to be safe 228325bded7cSSeth Forshee */ 228425bded7cSSeth Forshee alps_exit_command_mode(psmouse); 228525bded7cSSeth Forshee return -1; 228625bded7cSSeth Forshee } 228725bded7cSSeth Forshee 2288f3f33c67SHans de Goede static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 2289f3f33c67SHans de Goede { 2290f3f33c67SHans de Goede int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 2291f3f33c67SHans de Goede struct alps_data *priv = psmouse->private; 2292f3f33c67SHans de Goede 2293f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch); 2294f3f33c67SHans de Goede if (reg < 0) 2295f3f33c67SHans de Goede return reg; 2296f3f33c67SHans de Goede 2297f3f33c67SHans de Goede x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 2298f3f33c67SHans de Goede x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 2299f3f33c67SHans de Goede 2300f3f33c67SHans de Goede y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 2301f3f33c67SHans de Goede y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 2302f3f33c67SHans de Goede 2303f3f33c67SHans de Goede reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 2304f3f33c67SHans de Goede if (reg < 0) 2305f3f33c67SHans de Goede return reg; 2306f3f33c67SHans de Goede 2307f3f33c67SHans de Goede x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 2308f3f33c67SHans de Goede x_electrode = 17 + x_electrode; 2309f3f33c67SHans de Goede 2310f3f33c67SHans de Goede y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 2311f3f33c67SHans de Goede y_electrode = 13 + y_electrode; 2312f3f33c67SHans de Goede 2313f3f33c67SHans de Goede x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 2314f3f33c67SHans de Goede y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 2315f3f33c67SHans de Goede 2316f3f33c67SHans de Goede priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 2317f3f33c67SHans de Goede priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 2318f3f33c67SHans de Goede 2319f3f33c67SHans de Goede psmouse_dbg(psmouse, 2320f3f33c67SHans de Goede "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 2321f3f33c67SHans de Goede x_pitch, y_pitch, x_electrode, y_electrode, 2322f3f33c67SHans de Goede x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 2323f3f33c67SHans de Goede 2324f3f33c67SHans de Goede return 0; 2325f3f33c67SHans de Goede } 2326f3f33c67SHans de Goede 23271302bac3SKevin Cernekee static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 23281302bac3SKevin Cernekee { 2329cd401204SKevin Cernekee struct alps_data *priv = psmouse->private; 23301302bac3SKevin Cernekee struct ps2dev *ps2dev = &psmouse->ps2dev; 23311302bac3SKevin Cernekee int reg_val, ret = -1; 23321302bac3SKevin Cernekee 2333cd401204SKevin Cernekee if (priv->flags & ALPS_DUALPOINT) { 2334cd401204SKevin Cernekee reg_val = alps_setup_trackstick_v3(psmouse, 2335cd401204SKevin Cernekee ALPS_REG_BASE_RUSHMORE); 2336cd401204SKevin Cernekee if (reg_val == -EIO) 2337cd401204SKevin Cernekee goto error; 2338cd401204SKevin Cernekee } 2339cd401204SKevin Cernekee 2340d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse) || 23411302bac3SKevin Cernekee alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 23421302bac3SKevin Cernekee alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 23431302bac3SKevin Cernekee goto error; 23441302bac3SKevin Cernekee 2345f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 2346f3f33c67SHans de Goede goto error; 2347f3f33c67SHans de Goede 23481302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 23491302bac3SKevin Cernekee if (reg_val == -1) 23501302bac3SKevin Cernekee goto error; 23511302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 23521302bac3SKevin Cernekee goto error; 23531302bac3SKevin Cernekee 23541302bac3SKevin Cernekee if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 23551302bac3SKevin Cernekee goto error; 23561302bac3SKevin Cernekee 23571302bac3SKevin Cernekee /* enter absolute mode */ 23581302bac3SKevin Cernekee reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 23591302bac3SKevin Cernekee if (reg_val == -1) 23601302bac3SKevin Cernekee goto error; 23611302bac3SKevin Cernekee if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 23621302bac3SKevin Cernekee goto error; 23631302bac3SKevin Cernekee 23641302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 23651302bac3SKevin Cernekee return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 23661302bac3SKevin Cernekee 23671302bac3SKevin Cernekee error: 23681302bac3SKevin Cernekee alps_exit_command_mode(psmouse); 23691302bac3SKevin Cernekee return ret; 23701302bac3SKevin Cernekee } 23711302bac3SKevin Cernekee 237225bded7cSSeth Forshee /* Must be in command mode when calling this function */ 237325bded7cSSeth Forshee static int alps_absolute_mode_v4(struct psmouse *psmouse) 237425bded7cSSeth Forshee { 237525bded7cSSeth Forshee int reg_val; 237625bded7cSSeth Forshee 237725bded7cSSeth Forshee reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 237825bded7cSSeth Forshee if (reg_val == -1) 237925bded7cSSeth Forshee return -1; 238025bded7cSSeth Forshee 238125bded7cSSeth Forshee reg_val |= 0x02; 238225bded7cSSeth Forshee if (__alps_command_mode_write_reg(psmouse, reg_val)) 238325bded7cSSeth Forshee return -1; 238425bded7cSSeth Forshee 238525bded7cSSeth Forshee return 0; 238625bded7cSSeth Forshee } 238725bded7cSSeth Forshee 238825bded7cSSeth Forshee static int alps_hw_init_v4(struct psmouse *psmouse) 238925bded7cSSeth Forshee { 239025bded7cSSeth Forshee struct ps2dev *ps2dev = &psmouse->ps2dev; 239125bded7cSSeth Forshee unsigned char param[4]; 239225bded7cSSeth Forshee 2393d18e53fcSKevin Cernekee if (alps_enter_command_mode(psmouse)) 239425bded7cSSeth Forshee goto error; 239525bded7cSSeth Forshee 239625bded7cSSeth Forshee if (alps_absolute_mode_v4(psmouse)) { 239725bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enter absolute mode\n"); 239825bded7cSSeth Forshee goto error; 239925bded7cSSeth Forshee } 240025bded7cSSeth Forshee 240125bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 240225bded7cSSeth Forshee goto error; 240325bded7cSSeth Forshee 240425bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 240525bded7cSSeth Forshee goto error; 240625bded7cSSeth Forshee 240725bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 240825bded7cSSeth Forshee goto error; 240925bded7cSSeth Forshee 241025bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 241125bded7cSSeth Forshee goto error; 241225bded7cSSeth Forshee 241325bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 241425bded7cSSeth Forshee goto error; 241525bded7cSSeth Forshee 241625bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 241725bded7cSSeth Forshee goto error; 241825bded7cSSeth Forshee 241925bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 242025bded7cSSeth Forshee goto error; 242125bded7cSSeth Forshee 242225bded7cSSeth Forshee if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 242325bded7cSSeth Forshee goto error; 242425bded7cSSeth Forshee 242525bded7cSSeth Forshee alps_exit_command_mode(psmouse); 242625bded7cSSeth Forshee 242725bded7cSSeth Forshee /* 242825bded7cSSeth Forshee * This sequence changes the output from a 9-byte to an 242925bded7cSSeth Forshee * 8-byte format. All the same data seems to be present, 243025bded7cSSeth Forshee * just in a more compact format. 243125bded7cSSeth Forshee */ 243225bded7cSSeth Forshee param[0] = 0xc8; 243325bded7cSSeth Forshee param[1] = 0x64; 243425bded7cSSeth Forshee param[2] = 0x50; 243525bded7cSSeth Forshee if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 243625bded7cSSeth Forshee ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 243725bded7cSSeth Forshee ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 243825bded7cSSeth Forshee ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 243925bded7cSSeth Forshee return -1; 244025bded7cSSeth Forshee 244125bded7cSSeth Forshee /* Set rate and enable data reporting */ 244225bded7cSSeth Forshee param[0] = 0x64; 244325bded7cSSeth Forshee if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 244425bded7cSSeth Forshee ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 244525bded7cSSeth Forshee psmouse_err(psmouse, "Failed to enable data reporting\n"); 244625bded7cSSeth Forshee return -1; 244725bded7cSSeth Forshee } 244825bded7cSSeth Forshee 244925bded7cSSeth Forshee return 0; 245025bded7cSSeth Forshee 245125bded7cSSeth Forshee error: 245225bded7cSSeth Forshee /* 245325bded7cSSeth Forshee * Leaving the touchpad in command mode will essentially render 245425bded7cSSeth Forshee * it unusable until the machine reboots, so exit it here just 245525bded7cSSeth Forshee * to be safe 245625bded7cSSeth Forshee */ 245725bded7cSSeth Forshee alps_exit_command_mode(psmouse); 245825bded7cSSeth Forshee return -1; 245925bded7cSSeth Forshee } 246025bded7cSSeth Forshee 24613db5b9f7SMasaki Ota static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse, 24623db5b9f7SMasaki Ota unsigned char index, unsigned char otp[]) 24633db5b9f7SMasaki Ota { 24643db5b9f7SMasaki Ota struct ps2dev *ps2dev = &psmouse->ps2dev; 24653db5b9f7SMasaki Ota 24663db5b9f7SMasaki Ota switch (index) { 24673db5b9f7SMasaki Ota case 0: 24683db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 24693db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 24703db5b9f7SMasaki Ota ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) 24713db5b9f7SMasaki Ota return -1; 24723db5b9f7SMasaki Ota 24733db5b9f7SMasaki Ota break; 24743db5b9f7SMasaki Ota 24753db5b9f7SMasaki Ota case 1: 24763db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 24773db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 24783db5b9f7SMasaki Ota ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) 24793db5b9f7SMasaki Ota return -1; 24803db5b9f7SMasaki Ota 24813db5b9f7SMasaki Ota break; 24823db5b9f7SMasaki Ota } 24833db5b9f7SMasaki Ota 24843db5b9f7SMasaki Ota return 0; 24853db5b9f7SMasaki Ota } 24863db5b9f7SMasaki Ota 248707f19e3dSFengguang Wu static int alps_update_device_area_ss4_v2(unsigned char otp[][4], 24883db5b9f7SMasaki Ota struct alps_data *priv) 24893db5b9f7SMasaki Ota { 24903db5b9f7SMasaki Ota int num_x_electrode; 24913db5b9f7SMasaki Ota int num_y_electrode; 24923db5b9f7SMasaki Ota int x_pitch, y_pitch, x_phys, y_phys; 24933db5b9f7SMasaki Ota 2494e7348396SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 2495e7348396SMasaki Ota num_x_electrode = 2496e7348396SMasaki Ota SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F); 2497e7348396SMasaki Ota num_y_electrode = 2498e7348396SMasaki Ota SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F); 24993db5b9f7SMasaki Ota 2500e7348396SMasaki Ota priv->x_max = 2501e7348396SMasaki Ota (num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE; 2502e7348396SMasaki Ota priv->y_max = 2503e7348396SMasaki Ota (num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE; 2504e7348396SMasaki Ota 2505e7348396SMasaki Ota x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM; 2506e7348396SMasaki Ota y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM; 2507e7348396SMasaki Ota 2508e7348396SMasaki Ota } else { 2509e7348396SMasaki Ota num_x_electrode = 2510e7348396SMasaki Ota SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F); 2511e7348396SMasaki Ota num_y_electrode = 2512e7348396SMasaki Ota SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F); 2513e7348396SMasaki Ota 2514e7348396SMasaki Ota priv->x_max = 2515e7348396SMasaki Ota (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE; 2516e7348396SMasaki Ota priv->y_max = 2517e7348396SMasaki Ota (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE; 25183db5b9f7SMasaki Ota 25193db5b9f7SMasaki Ota x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM; 25203db5b9f7SMasaki Ota y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM; 2521e7348396SMasaki Ota } 25223db5b9f7SMasaki Ota 25233db5b9f7SMasaki Ota x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */ 25243db5b9f7SMasaki Ota y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */ 25253db5b9f7SMasaki Ota 25263db5b9f7SMasaki Ota priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 25273db5b9f7SMasaki Ota priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 25283db5b9f7SMasaki Ota 25293db5b9f7SMasaki Ota return 0; 25303db5b9f7SMasaki Ota } 25313db5b9f7SMasaki Ota 253207f19e3dSFengguang Wu static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], 253307f19e3dSFengguang Wu struct alps_data *priv) 25343db5b9f7SMasaki Ota { 25353db5b9f7SMasaki Ota unsigned char is_btnless; 25363db5b9f7SMasaki Ota 2537e7348396SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) 2538e7348396SMasaki Ota is_btnless = (otp[1][0] >> 1) & 0x01; 2539e7348396SMasaki Ota else 25403db5b9f7SMasaki Ota is_btnless = (otp[1][1] >> 3) & 0x01; 25413db5b9f7SMasaki Ota 25423db5b9f7SMasaki Ota if (is_btnless) 25433db5b9f7SMasaki Ota priv->flags |= ALPS_BUTTONPAD; 25443db5b9f7SMasaki Ota 25453db5b9f7SMasaki Ota return 0; 25463db5b9f7SMasaki Ota } 25473db5b9f7SMasaki Ota 2548e7348396SMasaki Ota static int alps_update_dual_info_ss4_v2(unsigned char otp[][4], 2549567b9b54SMasaki Ota struct alps_data *priv, 2550567b9b54SMasaki Ota struct psmouse *psmouse) 2551e7348396SMasaki Ota { 2552e7348396SMasaki Ota bool is_dual = false; 2553567b9b54SMasaki Ota int reg_val = 0; 2554567b9b54SMasaki Ota struct ps2dev *ps2dev = &psmouse->ps2dev; 2555e7348396SMasaki Ota 2556567b9b54SMasaki Ota if (IS_SS4PLUS_DEV(priv->dev_id)) { 2557e7348396SMasaki Ota is_dual = (otp[0][0] >> 4) & 0x01; 2558e7348396SMasaki Ota 2559567b9b54SMasaki Ota if (!is_dual) { 2560567b9b54SMasaki Ota /* For support TrackStick of Thinkpad L/E series */ 2561567b9b54SMasaki Ota if (alps_exit_command_mode(psmouse) == 0 && 2562567b9b54SMasaki Ota alps_enter_command_mode(psmouse) == 0) { 2563567b9b54SMasaki Ota reg_val = alps_command_mode_read_reg(psmouse, 2564567b9b54SMasaki Ota 0xD7); 2565567b9b54SMasaki Ota } 2566567b9b54SMasaki Ota alps_exit_command_mode(psmouse); 2567567b9b54SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 2568567b9b54SMasaki Ota 2569567b9b54SMasaki Ota if (reg_val == 0x0C || reg_val == 0x1D) 2570567b9b54SMasaki Ota is_dual = true; 2571567b9b54SMasaki Ota } 2572567b9b54SMasaki Ota } 2573567b9b54SMasaki Ota 2574e7348396SMasaki Ota if (is_dual) 2575e7348396SMasaki Ota priv->flags |= ALPS_DUALPOINT | 2576e7348396SMasaki Ota ALPS_DUALPOINT_WITH_PRESSURE; 2577e7348396SMasaki Ota 2578e7348396SMasaki Ota return 0; 2579e7348396SMasaki Ota } 2580e7348396SMasaki Ota 25813db5b9f7SMasaki Ota static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, 25823db5b9f7SMasaki Ota struct alps_data *priv) 25833db5b9f7SMasaki Ota { 25843db5b9f7SMasaki Ota unsigned char otp[2][4]; 25853db5b9f7SMasaki Ota 25863db5b9f7SMasaki Ota memset(otp, 0, sizeof(otp)); 25873db5b9f7SMasaki Ota 25884a646580SMasaki Ota if (alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]) || 25894a646580SMasaki Ota alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0])) 25903db5b9f7SMasaki Ota return -1; 25913db5b9f7SMasaki Ota 25923db5b9f7SMasaki Ota alps_update_device_area_ss4_v2(otp, priv); 25933db5b9f7SMasaki Ota 25943db5b9f7SMasaki Ota alps_update_btn_info_ss4_v2(otp, priv); 25953db5b9f7SMasaki Ota 2596567b9b54SMasaki Ota alps_update_dual_info_ss4_v2(otp, priv, psmouse); 2597e7348396SMasaki Ota 25983db5b9f7SMasaki Ota return 0; 25993db5b9f7SMasaki Ota } 26003db5b9f7SMasaki Ota 2601ee65d4b3SYunkang Tang static int alps_dolphin_get_device_area(struct psmouse *psmouse, 2602ee65d4b3SYunkang Tang struct alps_data *priv) 2603ee65d4b3SYunkang Tang { 2604ee65d4b3SYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 2605ee65d4b3SYunkang Tang unsigned char param[4] = {0}; 2606ee65d4b3SYunkang Tang int num_x_electrode, num_y_electrode; 2607ee65d4b3SYunkang Tang 2608ee65d4b3SYunkang Tang if (alps_enter_command_mode(psmouse)) 2609ee65d4b3SYunkang Tang return -1; 2610ee65d4b3SYunkang Tang 2611ee65d4b3SYunkang Tang param[0] = 0x0a; 2612ee65d4b3SYunkang Tang if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 2613ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2614ee65d4b3SYunkang Tang ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 2615ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2616ee65d4b3SYunkang Tang ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 2617ee65d4b3SYunkang Tang return -1; 2618ee65d4b3SYunkang Tang 2619ee65d4b3SYunkang Tang if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 2620ee65d4b3SYunkang Tang return -1; 2621ee65d4b3SYunkang Tang 2622ee65d4b3SYunkang Tang /* 2623ee65d4b3SYunkang Tang * Dolphin's sensor line number is not fixed. It can be calculated 2624ee65d4b3SYunkang Tang * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 2625ee65d4b3SYunkang Tang * Further more, we can get device's x_max and y_max by multiplying 2626ee65d4b3SYunkang Tang * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 2627ee65d4b3SYunkang Tang * 2628ee65d4b3SYunkang Tang * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 2629ee65d4b3SYunkang Tang * real sensor line number X = 11 + 8 = 19, and 2630ee65d4b3SYunkang Tang * real sensor line number Y = 8 + 1 = 9. 2631ee65d4b3SYunkang Tang * So, x_max = (19 - 1) * 64 = 1152, and 2632ee65d4b3SYunkang Tang * y_max = (9 - 1) * 64 = 512. 2633ee65d4b3SYunkang Tang */ 2634ee65d4b3SYunkang Tang num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2635ee65d4b3SYunkang Tang num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2636ee65d4b3SYunkang Tang priv->x_bits = num_x_electrode; 2637ee65d4b3SYunkang Tang priv->y_bits = num_y_electrode; 2638ee65d4b3SYunkang Tang priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2639ee65d4b3SYunkang Tang priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2640ee65d4b3SYunkang Tang 2641ee65d4b3SYunkang Tang if (alps_exit_command_mode(psmouse)) 2642ee65d4b3SYunkang Tang return -1; 2643ee65d4b3SYunkang Tang 2644ee65d4b3SYunkang Tang return 0; 2645ee65d4b3SYunkang Tang } 2646ee65d4b3SYunkang Tang 264775af9e56SDave Turvene static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 264875af9e56SDave Turvene { 264975af9e56SDave Turvene struct ps2dev *ps2dev = &psmouse->ps2dev; 265075af9e56SDave Turvene unsigned char param[2]; 265175af9e56SDave Turvene 265275af9e56SDave Turvene /* This is dolphin "v1" as empirically defined by florin9doi */ 265375af9e56SDave Turvene param[0] = 0x64; 265475af9e56SDave Turvene param[1] = 0x28; 265575af9e56SDave Turvene 265675af9e56SDave Turvene if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 265775af9e56SDave Turvene ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 265875af9e56SDave Turvene ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 265975af9e56SDave Turvene return -1; 266075af9e56SDave Turvene 266175af9e56SDave Turvene return 0; 266275af9e56SDave Turvene } 266375af9e56SDave Turvene 26643808843cSYunkang Tang static int alps_hw_init_v7(struct psmouse *psmouse) 26653808843cSYunkang Tang { 26663808843cSYunkang Tang struct ps2dev *ps2dev = &psmouse->ps2dev; 26673808843cSYunkang Tang int reg_val, ret = -1; 26683808843cSYunkang Tang 26693808843cSYunkang Tang if (alps_enter_command_mode(psmouse) || 26703808843cSYunkang Tang alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 26713808843cSYunkang Tang goto error; 26723808843cSYunkang Tang 2673f3f33c67SHans de Goede if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2674f3f33c67SHans de Goede goto error; 2675f3f33c67SHans de Goede 26763808843cSYunkang Tang if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 26773808843cSYunkang Tang goto error; 26783808843cSYunkang Tang 26793808843cSYunkang Tang reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 26803808843cSYunkang Tang if (reg_val == -1) 26813808843cSYunkang Tang goto error; 26823808843cSYunkang Tang if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 26833808843cSYunkang Tang goto error; 26843808843cSYunkang Tang 26853808843cSYunkang Tang alps_exit_command_mode(psmouse); 26863808843cSYunkang Tang return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 26873808843cSYunkang Tang 26883808843cSYunkang Tang error: 26893808843cSYunkang Tang alps_exit_command_mode(psmouse); 26903808843cSYunkang Tang return ret; 26913808843cSYunkang Tang } 26923808843cSYunkang Tang 26933db5b9f7SMasaki Ota static int alps_hw_init_ss4_v2(struct psmouse *psmouse) 26943db5b9f7SMasaki Ota { 26953db5b9f7SMasaki Ota struct ps2dev *ps2dev = &psmouse->ps2dev; 26963db5b9f7SMasaki Ota char param[2] = {0x64, 0x28}; 26973db5b9f7SMasaki Ota int ret = -1; 26983db5b9f7SMasaki Ota 26993db5b9f7SMasaki Ota /* enter absolute mode */ 27003db5b9f7SMasaki Ota if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 27013db5b9f7SMasaki Ota ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 27023db5b9f7SMasaki Ota ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 27033db5b9f7SMasaki Ota ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) { 27043db5b9f7SMasaki Ota goto error; 27053db5b9f7SMasaki Ota } 27063db5b9f7SMasaki Ota 27073db5b9f7SMasaki Ota /* T.B.D. Decread noise packet number, delete in the future */ 27083db5b9f7SMasaki Ota if (alps_exit_command_mode(psmouse) || 27093db5b9f7SMasaki Ota alps_enter_command_mode(psmouse) || 27103db5b9f7SMasaki Ota alps_command_mode_write_reg(psmouse, 0x001D, 0x20)) { 27113db5b9f7SMasaki Ota goto error; 27123db5b9f7SMasaki Ota } 27133db5b9f7SMasaki Ota alps_exit_command_mode(psmouse); 27143db5b9f7SMasaki Ota 27153db5b9f7SMasaki Ota return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 27163db5b9f7SMasaki Ota 27173db5b9f7SMasaki Ota error: 27183db5b9f7SMasaki Ota alps_exit_command_mode(psmouse); 27193db5b9f7SMasaki Ota return ret; 27203db5b9f7SMasaki Ota } 27213db5b9f7SMasaki Ota 27223296f71cSDmitry Torokhov static int alps_set_protocol(struct psmouse *psmouse, 27233296f71cSDmitry Torokhov struct alps_data *priv, 27243296f71cSDmitry Torokhov const struct alps_protocol_info *protocol) 272525bded7cSSeth Forshee { 27263296f71cSDmitry Torokhov psmouse->private = priv; 27273296f71cSDmitry Torokhov 272817a58edcSKees Cook timer_setup(&priv->timer, alps_flush_packet, 0); 27293296f71cSDmitry Torokhov 27303296f71cSDmitry Torokhov priv->proto_version = protocol->version; 27313296f71cSDmitry Torokhov priv->byte0 = protocol->byte0; 27323296f71cSDmitry Torokhov priv->mask0 = protocol->mask0; 27333296f71cSDmitry Torokhov priv->flags = protocol->flags; 2734f673ceb1SKevin Cernekee 27357a9f73e7SKevin Cernekee priv->x_max = 2000; 27367a9f73e7SKevin Cernekee priv->y_max = 1400; 27377a9f73e7SKevin Cernekee priv->x_bits = 15; 27387a9f73e7SKevin Cernekee priv->y_bits = 11; 27397a9f73e7SKevin Cernekee 274099df65e7SKevin Cernekee switch (priv->proto_version) { 274125bded7cSSeth Forshee case ALPS_PROTO_V1: 274225bded7cSSeth Forshee case ALPS_PROTO_V2: 274324af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v1_v2; 274424af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v1_v2; 274524af5cb9SKevin Cernekee priv->set_abs_params = alps_set_abs_params_st; 274695f75e91SYunkang Tang priv->x_max = 1023; 274795f75e91SYunkang Tang priv->y_max = 767; 274819556219SHans de Goede if (dmi_check_system(alps_dmi_has_separate_stick_buttons)) 274919556219SHans de Goede priv->flags |= ALPS_STICK_BITS; 275025bded7cSSeth Forshee break; 2751fb2dd7a6SDmitry Torokhov 275225bded7cSSeth Forshee case ALPS_PROTO_V3: 275324af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v3; 275424af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v3; 2755688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 2756f85e5001SKevin Cernekee priv->decode_fields = alps_decode_pinnacle; 275750e8b216SKevin Cernekee priv->nibble_commands = alps_v3_nibble_commands; 275850e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 27594b1af853SPali Rohár 27604b1af853SPali Rohár if (alps_probe_trackstick_v3_v7(psmouse, 27614b1af853SPali Rohár ALPS_REG_BASE_PINNACLE) < 0) 27624b1af853SPali Rohár priv->flags &= ~ALPS_DUALPOINT; 27634b1af853SPali Rohár 276425bded7cSSeth Forshee break; 2765fb2dd7a6SDmitry Torokhov 2766fb2dd7a6SDmitry Torokhov case ALPS_PROTO_V3_RUSHMORE: 2767fb2dd7a6SDmitry Torokhov priv->hw_init = alps_hw_init_rushmore_v3; 2768fb2dd7a6SDmitry Torokhov priv->process_packet = alps_process_packet_v3; 2769688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 2770fb2dd7a6SDmitry Torokhov priv->decode_fields = alps_decode_rushmore; 2771fb2dd7a6SDmitry Torokhov priv->nibble_commands = alps_v3_nibble_commands; 2772fb2dd7a6SDmitry Torokhov priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2773fb2dd7a6SDmitry Torokhov priv->x_bits = 16; 2774fb2dd7a6SDmitry Torokhov priv->y_bits = 12; 27753296f71cSDmitry Torokhov 2776dae928ecSPali Rohár if (alps_probe_trackstick_v3_v7(psmouse, 27773296f71cSDmitry Torokhov ALPS_REG_BASE_RUSHMORE) < 0) 27783296f71cSDmitry Torokhov priv->flags &= ~ALPS_DUALPOINT; 27793296f71cSDmitry Torokhov 2780fb2dd7a6SDmitry Torokhov break; 2781fb2dd7a6SDmitry Torokhov 278225bded7cSSeth Forshee case ALPS_PROTO_V4: 278324af5cb9SKevin Cernekee priv->hw_init = alps_hw_init_v4; 278424af5cb9SKevin Cernekee priv->process_packet = alps_process_packet_v4; 2785688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 278650e8b216SKevin Cernekee priv->nibble_commands = alps_v4_nibble_commands; 278750e8b216SKevin Cernekee priv->addr_command = PSMOUSE_CMD_DISABLE; 278825bded7cSSeth Forshee break; 27893296f71cSDmitry Torokhov 279075af9e56SDave Turvene case ALPS_PROTO_V5: 279175af9e56SDave Turvene priv->hw_init = alps_hw_init_dolphin_v1; 2792ee65d4b3SYunkang Tang priv->process_packet = alps_process_touchpad_packet_v3_v5; 279375af9e56SDave Turvene priv->decode_fields = alps_decode_dolphin; 2794688ea364SHans de Goede priv->set_abs_params = alps_set_abs_params_semi_mt; 279575af9e56SDave Turvene priv->nibble_commands = alps_v3_nibble_commands; 279675af9e56SDave Turvene priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 279775af9e56SDave Turvene priv->x_bits = 23; 279875af9e56SDave Turvene priv->y_bits = 12; 2799c164c147SDmitry Torokhov 2800c164c147SDmitry Torokhov if (alps_dolphin_get_device_area(psmouse, priv)) 2801c164c147SDmitry Torokhov return -EIO; 2802c164c147SDmitry Torokhov 280375af9e56SDave Turvene break; 28043296f71cSDmitry Torokhov 280595f75e91SYunkang Tang case ALPS_PROTO_V6: 280695f75e91SYunkang Tang priv->hw_init = alps_hw_init_v6; 280795f75e91SYunkang Tang priv->process_packet = alps_process_packet_v6; 280895f75e91SYunkang Tang priv->set_abs_params = alps_set_abs_params_st; 280995f75e91SYunkang Tang priv->nibble_commands = alps_v6_nibble_commands; 281095f75e91SYunkang Tang priv->x_max = 2047; 281195f75e91SYunkang Tang priv->y_max = 1535; 281295f75e91SYunkang Tang break; 28133296f71cSDmitry Torokhov 28143808843cSYunkang Tang case ALPS_PROTO_V7: 28153808843cSYunkang Tang priv->hw_init = alps_hw_init_v7; 28163808843cSYunkang Tang priv->process_packet = alps_process_packet_v7; 28173808843cSYunkang Tang priv->decode_fields = alps_decode_packet_v7; 28188eccd393SMasaki Ota priv->set_abs_params = alps_set_abs_params_v7; 28193808843cSYunkang Tang priv->nibble_commands = alps_v3_nibble_commands; 28203808843cSYunkang Tang priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2821c164c147SDmitry Torokhov priv->x_max = 0xfff; 2822c164c147SDmitry Torokhov priv->y_max = 0x7ff; 28233808843cSYunkang Tang 28243808843cSYunkang Tang if (priv->fw_ver[1] != 0xba) 28253808843cSYunkang Tang priv->flags |= ALPS_BUTTONPAD; 28263296f71cSDmitry Torokhov 2827dae928ecSPali Rohár if (alps_probe_trackstick_v3_v7(psmouse, ALPS_REG_BASE_V7) < 0) 2828dae928ecSPali Rohár priv->flags &= ~ALPS_DUALPOINT; 2829dae928ecSPali Rohár 28303808843cSYunkang Tang break; 28313db5b9f7SMasaki Ota 28323db5b9f7SMasaki Ota case ALPS_PROTO_V8: 28333db5b9f7SMasaki Ota priv->hw_init = alps_hw_init_ss4_v2; 28343db5b9f7SMasaki Ota priv->process_packet = alps_process_packet_ss4_v2; 28353db5b9f7SMasaki Ota priv->decode_fields = alps_decode_ss4_v2; 28363db5b9f7SMasaki Ota priv->set_abs_params = alps_set_abs_params_ss4_v2; 28373db5b9f7SMasaki Ota priv->nibble_commands = alps_v3_nibble_commands; 28383db5b9f7SMasaki Ota priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 28393db5b9f7SMasaki Ota 28403db5b9f7SMasaki Ota if (alps_set_defaults_ss4_v2(psmouse, priv)) 28413db5b9f7SMasaki Ota return -EIO; 28423db5b9f7SMasaki Ota 28433db5b9f7SMasaki Ota break; 284425bded7cSSeth Forshee } 28453296f71cSDmitry Torokhov 28463296f71cSDmitry Torokhov return 0; 284725bded7cSSeth Forshee } 284825bded7cSSeth Forshee 28493296f71cSDmitry Torokhov static const struct alps_protocol_info *alps_match_table(unsigned char *e7, 28503296f71cSDmitry Torokhov unsigned char *ec) 28512e992cc0SKevin Cernekee { 2852b5d6b851SKevin Cernekee const struct alps_model_info *model; 28532e992cc0SKevin Cernekee int i; 28542e992cc0SKevin Cernekee 2855b5d6b851SKevin Cernekee for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2856b5d6b851SKevin Cernekee model = &alps_model_data[i]; 2857b5d6b851SKevin Cernekee 2858a3cbfd56SPali Rohár if (!memcmp(e7, model->signature, sizeof(model->signature))) 28593296f71cSDmitry Torokhov return &model->protocol_info; 2860b5d6b851SKevin Cernekee } 2861b5d6b851SKevin Cernekee 28623296f71cSDmitry Torokhov return NULL; 2863b5d6b851SKevin Cernekee } 2864b5d6b851SKevin Cernekee 28657e4935ccSHui Wang static bool alps_is_cs19_trackpoint(struct psmouse *psmouse) 28667e4935ccSHui Wang { 28677e4935ccSHui Wang u8 param[2] = { 0 }; 28687e4935ccSHui Wang 28697e4935ccSHui Wang if (ps2_command(&psmouse->ps2dev, 28707e4935ccSHui Wang param, MAKE_PS2_CMD(0, 2, TP_READ_ID))) 28717e4935ccSHui Wang return false; 28727e4935ccSHui Wang 28737e4935ccSHui Wang /* 28747e4935ccSHui Wang * param[0] contains the trackpoint device variant_id while 28757e4935ccSHui Wang * param[1] contains the firmware_id. So far all alps 28767e4935ccSHui Wang * trackpoint-only devices have their variant_ids equal 28777e4935ccSHui Wang * TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range. 28787e4935ccSHui Wang */ 2879771a081eSHui Wang return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20); 28807e4935ccSHui Wang } 28817e4935ccSHui Wang 2882b5d6b851SKevin Cernekee static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2883b5d6b851SKevin Cernekee { 28843296f71cSDmitry Torokhov const struct alps_protocol_info *protocol; 2885b5d6b851SKevin Cernekee unsigned char e6[4], e7[4], ec[4]; 2886a09221e8SDmitry Torokhov int error; 2887b5d6b851SKevin Cernekee 28882e992cc0SKevin Cernekee /* 28892e992cc0SKevin Cernekee * First try "E6 report". 28902e992cc0SKevin Cernekee * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 28912e992cc0SKevin Cernekee * The bits 0-2 of the first byte will be 1s if some buttons are 28922e992cc0SKevin Cernekee * pressed. 28932e992cc0SKevin Cernekee */ 2894b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2895b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE11, e6)) 2896b5d6b851SKevin Cernekee return -EIO; 28972e992cc0SKevin Cernekee 2898b5d6b851SKevin Cernekee if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2899b5d6b851SKevin Cernekee return -EINVAL; 29002e992cc0SKevin Cernekee 29012e992cc0SKevin Cernekee /* 2902b5d6b851SKevin Cernekee * Now get the "E7" and "EC" reports. These will uniquely identify 2903b5d6b851SKevin Cernekee * most ALPS touchpads. 29042e992cc0SKevin Cernekee */ 2905b5d6b851SKevin Cernekee if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2906b5d6b851SKevin Cernekee PSMOUSE_CMD_SETSCALE21, e7) || 2907b5d6b851SKevin Cernekee alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2908b5d6b851SKevin Cernekee PSMOUSE_CMD_RESET_WRAP, ec) || 2909b5d6b851SKevin Cernekee alps_exit_command_mode(psmouse)) 2910b5d6b851SKevin Cernekee return -EIO; 29112e992cc0SKevin Cernekee 29123296f71cSDmitry Torokhov protocol = alps_match_table(e7, ec); 29133296f71cSDmitry Torokhov if (!protocol) { 291409c398bcSPali Rohár if (e7[0] == 0x73 && e7[1] == 0x02 && e7[2] == 0x64 && 291509c398bcSPali Rohár ec[2] == 0x8a) { 291609c398bcSPali Rohár protocol = &alps_v4_protocol_data; 291709c398bcSPali Rohár } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 29183296f71cSDmitry Torokhov ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 29193296f71cSDmitry Torokhov protocol = &alps_v5_protocol_data; 29203296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && 29213296f71cSDmitry Torokhov ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 29223296f71cSDmitry Torokhov protocol = &alps_v7_protocol_data; 29233296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x08) { 29243296f71cSDmitry Torokhov protocol = &alps_v3_rushmore_data; 29253296f71cSDmitry Torokhov } else if (ec[0] == 0x88 && ec[1] == 0x07 && 29263296f71cSDmitry Torokhov ec[2] >= 0x90 && ec[2] <= 0x9d) { 29273296f71cSDmitry Torokhov protocol = &alps_v3_protocol_data; 29283db5b9f7SMasaki Ota } else if (e7[0] == 0x73 && e7[1] == 0x03 && 2929e7348396SMasaki Ota (e7[2] == 0x14 || e7[2] == 0x28)) { 2930aeaa881fSBen Gamari protocol = &alps_v8_protocol_data; 2931c9815232SPali Rohár } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0xc8) { 2932c9815232SPali Rohár protocol = &alps_v9_protocol_data; 2933c9815232SPali Rohár psmouse_warn(psmouse, 2934c9815232SPali Rohár "Unsupported ALPS V9 touchpad: E7=%3ph, EC=%3ph\n", 2935c9815232SPali Rohár e7, ec); 2936c9815232SPali Rohár return -EINVAL; 29373296f71cSDmitry Torokhov } else { 29383296f71cSDmitry Torokhov psmouse_dbg(psmouse, 29393296f71cSDmitry Torokhov "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 29403296f71cSDmitry Torokhov return -EINVAL; 29413296f71cSDmitry Torokhov } 29423296f71cSDmitry Torokhov } 29433296f71cSDmitry Torokhov 2944a09221e8SDmitry Torokhov if (priv) { 2945e7348396SMasaki Ota /* Save Device ID and Firmware version */ 2946e7348396SMasaki Ota memcpy(priv->dev_id, e7, 3); 2947c0cd17f6SHans de Goede memcpy(priv->fw_ver, ec, 3); 2948a09221e8SDmitry Torokhov error = alps_set_protocol(psmouse, priv, protocol); 2949a09221e8SDmitry Torokhov if (error) 2950a09221e8SDmitry Torokhov return error; 2951a09221e8SDmitry Torokhov } 2952c0cd17f6SHans de Goede 2953a09221e8SDmitry Torokhov return 0; 29542e992cc0SKevin Cernekee } 29552e992cc0SKevin Cernekee 29561e0c5b12SDmitry Torokhov static int alps_reconnect(struct psmouse *psmouse) 29571e0c5b12SDmitry Torokhov { 2958b5d6b851SKevin Cernekee struct alps_data *priv = psmouse->private; 295971bb21b6SMaxim Levitsky 29601e0c5b12SDmitry Torokhov psmouse_reset(psmouse); 29611e0c5b12SDmitry Torokhov 2962b5d6b851SKevin Cernekee if (alps_identify(psmouse, priv) < 0) 29631e0c5b12SDmitry Torokhov return -1; 29641e0c5b12SDmitry Torokhov 296524af5cb9SKevin Cernekee return priv->hw_init(psmouse); 29661da177e4SLinus Torvalds } 29671da177e4SLinus Torvalds 29681da177e4SLinus Torvalds static void alps_disconnect(struct psmouse *psmouse) 29691da177e4SLinus Torvalds { 29701da177e4SLinus Torvalds struct alps_data *priv = psmouse->private; 29712e5b636bSDmitry Torokhov 29721da177e4SLinus Torvalds psmouse_reset(psmouse); 29731d9f2626SSebastian Kapfer del_timer_sync(&priv->timer); 297404aae283SPali Rohár if (priv->dev2) 29752e5b636bSDmitry Torokhov input_unregister_device(priv->dev2); 297604aae283SPali Rohár if (!IS_ERR_OR_NULL(priv->dev3)) 297704aae283SPali Rohár input_unregister_device(priv->dev3); 29781da177e4SLinus Torvalds kfree(priv); 29791da177e4SLinus Torvalds } 29801da177e4SLinus Torvalds 298124af5cb9SKevin Cernekee static void alps_set_abs_params_st(struct alps_data *priv, 298224af5cb9SKevin Cernekee struct input_dev *dev1) 298324af5cb9SKevin Cernekee { 298495f75e91SYunkang Tang input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 298595f75e91SYunkang Tang input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 29868eccd393SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 298724af5cb9SKevin Cernekee } 298824af5cb9SKevin Cernekee 29898eccd393SMasaki Ota static void alps_set_abs_params_mt_common(struct alps_data *priv, 299024af5cb9SKevin Cernekee struct input_dev *dev1) 299124af5cb9SKevin Cernekee { 29927a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 29937a9f73e7SKevin Cernekee input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 299424af5cb9SKevin Cernekee 2995f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2996f3f33c67SHans de Goede input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2997f3f33c67SHans de Goede 299824af5cb9SKevin Cernekee set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 299924af5cb9SKevin Cernekee set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 30008eccd393SMasaki Ota } 30013808843cSYunkang Tang 3002688ea364SHans de Goede static void alps_set_abs_params_semi_mt(struct alps_data *priv, 30038eccd393SMasaki Ota struct input_dev *dev1) 30048eccd393SMasaki Ota { 30058eccd393SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 30068eccd393SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 30078eccd393SMasaki Ota 30088eccd393SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 30098eccd393SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 30101662c033SHans de Goede INPUT_MT_SEMI_MT); 30118eccd393SMasaki Ota } 30128eccd393SMasaki Ota 30138eccd393SMasaki Ota static void alps_set_abs_params_v7(struct alps_data *priv, 30148eccd393SMasaki Ota struct input_dev *dev1) 30158eccd393SMasaki Ota { 30168eccd393SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 30178d289842SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 30188eccd393SMasaki Ota 30198eccd393SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 30208eccd393SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 30218eccd393SMasaki Ota INPUT_MT_TRACK); 30223db5b9f7SMasaki Ota 30233db5b9f7SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 30243db5b9f7SMasaki Ota } 30253db5b9f7SMasaki Ota 30263db5b9f7SMasaki Ota static void alps_set_abs_params_ss4_v2(struct alps_data *priv, 30273db5b9f7SMasaki Ota struct input_dev *dev1) 30283db5b9f7SMasaki Ota { 30293db5b9f7SMasaki Ota alps_set_abs_params_mt_common(priv, dev1); 30303db5b9f7SMasaki Ota input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 30313db5b9f7SMasaki Ota set_bit(BTN_TOOL_QUINTTAP, dev1->keybit); 30323db5b9f7SMasaki Ota 30333db5b9f7SMasaki Ota input_mt_init_slots(dev1, MAX_TOUCHES, 30343db5b9f7SMasaki Ota INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | 30353db5b9f7SMasaki Ota INPUT_MT_TRACK); 303624af5cb9SKevin Cernekee } 303724af5cb9SKevin Cernekee 30381da177e4SLinus Torvalds int alps_init(struct psmouse *psmouse) 30391da177e4SLinus Torvalds { 3040a09221e8SDmitry Torokhov struct alps_data *priv = psmouse->private; 304104aae283SPali Rohár struct input_dev *dev1 = psmouse->dev; 3042a09221e8SDmitry Torokhov int error; 30431da177e4SLinus Torvalds 3044a09221e8SDmitry Torokhov error = priv->hw_init(psmouse); 3045a09221e8SDmitry Torokhov if (error) 30461da177e4SLinus Torvalds goto init_fail; 30471da177e4SLinus Torvalds 30487105d2eaSDmitry Torokhov /* 30497105d2eaSDmitry Torokhov * Undo part of setup done for us by psmouse core since touchpad 30507105d2eaSDmitry Torokhov * is not a relative device. 30517105d2eaSDmitry Torokhov */ 30527105d2eaSDmitry Torokhov __clear_bit(EV_REL, dev1->evbit); 30537105d2eaSDmitry Torokhov __clear_bit(REL_X, dev1->relbit); 30547105d2eaSDmitry Torokhov __clear_bit(REL_Y, dev1->relbit); 30557105d2eaSDmitry Torokhov 30567105d2eaSDmitry Torokhov /* 30577105d2eaSDmitry Torokhov * Now set up our capabilities. 30587105d2eaSDmitry Torokhov */ 30597b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 30607b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 30617b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 306271bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_LEFT)] |= 306371bb21b6SMaxim Levitsky BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 30641da177e4SLinus Torvalds 30657b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 306625bded7cSSeth Forshee 306724af5cb9SKevin Cernekee priv->set_abs_params(priv, dev1); 30681da177e4SLinus Torvalds 306999df65e7SKevin Cernekee if (priv->flags & ALPS_WHEEL) { 30707b19ada2SJiri Slaby dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 30717b19ada2SJiri Slaby dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 30721da177e4SLinus Torvalds } 30731da177e4SLinus Torvalds 307499df65e7SKevin Cernekee if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 30757b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 30767b19ada2SJiri Slaby dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 30771da177e4SLinus Torvalds } 30781da177e4SLinus Torvalds 307999df65e7SKevin Cernekee if (priv->flags & ALPS_FOUR_BUTTONS) { 308071bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 308171bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 308271bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 308371bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 30843808843cSYunkang Tang } else if (priv->flags & ALPS_BUTTONPAD) { 30853808843cSYunkang Tang set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 30863808843cSYunkang Tang clear_bit(BTN_RIGHT, dev1->keybit); 308771bb21b6SMaxim Levitsky } else { 308871bb21b6SMaxim Levitsky dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 308971bb21b6SMaxim Levitsky } 309071bb21b6SMaxim Levitsky 3091dfba8600SPali Rohár if (priv->flags & ALPS_DUALPOINT) { 309204aae283SPali Rohár struct input_dev *dev2; 309304aae283SPali Rohár 309404aae283SPali Rohár dev2 = input_allocate_device(); 309504aae283SPali Rohár if (!dev2) { 309604aae283SPali Rohár psmouse_err(psmouse, 309704aae283SPali Rohár "failed to allocate trackstick device\n"); 309804aae283SPali Rohár error = -ENOMEM; 309904aae283SPali Rohár goto init_fail; 310004aae283SPali Rohár } 310104aae283SPali Rohár 310204aae283SPali Rohár snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1", 310304aae283SPali Rohár psmouse->ps2dev.serio->phys); 310404aae283SPali Rohár dev2->phys = priv->phys2; 310504aae283SPali Rohár 3106dfba8600SPali Rohár /* 3107dfba8600SPali Rohár * format of input device name is: "protocol vendor name" 3108dfba8600SPali Rohár * see function psmouse_switch_protocol() in psmouse-base.c 3109dfba8600SPali Rohár */ 3110dfba8600SPali Rohár dev2->name = "AlpsPS/2 ALPS DualPoint Stick"; 3111dfba8600SPali Rohár 31122e5b636bSDmitry Torokhov dev2->id.bustype = BUS_I8042; 31132e5b636bSDmitry Torokhov dev2->id.vendor = 0x0002; 311404aae283SPali Rohár dev2->id.product = PSMOUSE_ALPS; 311504aae283SPali Rohár dev2->id.version = priv->proto_version; 31161db3a345SDmitry Torokhov dev2->dev.parent = &psmouse->ps2dev.serio->dev; 31171da177e4SLinus Torvalds 311804aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_X); 311904aae283SPali Rohár input_set_capability(dev2, EV_REL, REL_Y); 31207ad8a106SBen Gamari if (priv->flags & ALPS_DUALPOINT_WITH_PRESSURE) { 31217ad8a106SBen Gamari input_set_capability(dev2, EV_ABS, ABS_PRESSURE); 31227ad8a106SBen Gamari input_set_abs_params(dev2, ABS_PRESSURE, 0, 127, 0, 0); 31237ad8a106SBen Gamari } 312404aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_LEFT); 312504aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_RIGHT); 312604aae283SPali Rohár input_set_capability(dev2, EV_KEY, BTN_MIDDLE); 31271da177e4SLinus Torvalds 312801d4cd5cSHans de Goede __set_bit(INPUT_PROP_POINTER, dev2->propbit); 31297611392fSHans de Goede __set_bit(INPUT_PROP_POINTING_STICK, dev2->propbit); 31307611392fSHans de Goede 313104aae283SPali Rohár error = input_register_device(dev2); 313204aae283SPali Rohár if (error) { 313304aae283SPali Rohár psmouse_err(psmouse, 313404aae283SPali Rohár "failed to register trackstick device: %d\n", 313504aae283SPali Rohár error); 313604aae283SPali Rohár input_free_device(dev2); 3137f42649e8SDmitry Torokhov goto init_fail; 313804aae283SPali Rohár } 313904aae283SPali Rohár 314004aae283SPali Rohár priv->dev2 = dev2; 314104aae283SPali Rohár } 314204aae283SPali Rohár 314304aae283SPali Rohár priv->psmouse = psmouse; 314404aae283SPali Rohár 314504aae283SPali Rohár INIT_DELAYED_WORK(&priv->dev3_register_work, 314604aae283SPali Rohár alps_register_bare_ps2_mouse); 31471da177e4SLinus Torvalds 31481da177e4SLinus Torvalds psmouse->protocol_handler = alps_process_byte; 3149f0d5c6f4SDmitry Torokhov psmouse->poll = alps_poll; 31501da177e4SLinus Torvalds psmouse->disconnect = alps_disconnect; 31511da177e4SLinus Torvalds psmouse->reconnect = alps_reconnect; 315299df65e7SKevin Cernekee psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 31531da177e4SLinus Torvalds 3154f0d5c6f4SDmitry Torokhov /* We are having trouble resyncing ALPS touchpads so disable it for now */ 3155f0d5c6f4SDmitry Torokhov psmouse->resync_time = 0; 3156f0d5c6f4SDmitry Torokhov 31579d720b34SPali Rohár /* Allow 2 invalid packets without resetting device */ 31589d720b34SPali Rohár psmouse->resetafter = psmouse->pktsize * 2; 31599d720b34SPali Rohár 31601da177e4SLinus Torvalds return 0; 31611da177e4SLinus Torvalds 31621da177e4SLinus Torvalds init_fail: 3163f42649e8SDmitry Torokhov psmouse_reset(psmouse); 3164a09221e8SDmitry Torokhov /* 3165a09221e8SDmitry Torokhov * Even though we did not allocate psmouse->private we do free 3166a09221e8SDmitry Torokhov * it here. 3167a09221e8SDmitry Torokhov */ 3168a09221e8SDmitry Torokhov kfree(psmouse->private); 31691e0c5b12SDmitry Torokhov psmouse->private = NULL; 3170a09221e8SDmitry Torokhov return error; 31711da177e4SLinus Torvalds } 31721da177e4SLinus Torvalds 3173b7802c5cSDmitry Torokhov int alps_detect(struct psmouse *psmouse, bool set_properties) 31741da177e4SLinus Torvalds { 3175a09221e8SDmitry Torokhov struct alps_data *priv; 3176a09221e8SDmitry Torokhov int error; 31771da177e4SLinus Torvalds 3178a09221e8SDmitry Torokhov error = alps_identify(psmouse, NULL); 3179a09221e8SDmitry Torokhov if (error) 3180a09221e8SDmitry Torokhov return error; 3181a09221e8SDmitry Torokhov 3182a09221e8SDmitry Torokhov /* 31837e4935ccSHui Wang * ALPS cs19 is a trackpoint-only device, and uses different 31847e4935ccSHui Wang * protocol than DualPoint ones, so we return -EINVAL here and let 31857e4935ccSHui Wang * trackpoint.c drive this device. If the trackpoint driver is not 31867e4935ccSHui Wang * enabled, the device will fall back to a bare PS/2 mouse. 31877e4935ccSHui Wang * If ps2_command() fails here, we depend on the immediately 31887e4935ccSHui Wang * followed psmouse_reset() to reset the device to normal state. 31897e4935ccSHui Wang */ 31907e4935ccSHui Wang if (alps_is_cs19_trackpoint(psmouse)) { 31917e4935ccSHui Wang psmouse_dbg(psmouse, 31927e4935ccSHui Wang "ALPS CS19 trackpoint-only device detected, ignoring\n"); 31937e4935ccSHui Wang return -EINVAL; 31947e4935ccSHui Wang } 31957e4935ccSHui Wang 31967e4935ccSHui Wang /* 3197a09221e8SDmitry Torokhov * Reset the device to make sure it is fully operational: 3198a09221e8SDmitry Torokhov * on some laptops, like certain Dell Latitudes, we may 3199a09221e8SDmitry Torokhov * fail to properly detect presence of trackstick if device 3200a09221e8SDmitry Torokhov * has not been reset. 3201a09221e8SDmitry Torokhov */ 3202a09221e8SDmitry Torokhov psmouse_reset(psmouse); 3203a09221e8SDmitry Torokhov 3204a09221e8SDmitry Torokhov priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 3205a09221e8SDmitry Torokhov if (!priv) 3206a09221e8SDmitry Torokhov return -ENOMEM; 3207a09221e8SDmitry Torokhov 3208a09221e8SDmitry Torokhov error = alps_identify(psmouse, priv); 320993050db2SDmitry Torokhov if (error) { 321093050db2SDmitry Torokhov kfree(priv); 3211a09221e8SDmitry Torokhov return error; 321293050db2SDmitry Torokhov } 32131da177e4SLinus Torvalds 32141da177e4SLinus Torvalds if (set_properties) { 32151da177e4SLinus Torvalds psmouse->vendor = "ALPS"; 3216a09221e8SDmitry Torokhov psmouse->name = priv->flags & ALPS_DUALPOINT ? 3217968ac842SDmitry Torokhov "DualPoint TouchPad" : "GlidePoint"; 3218a09221e8SDmitry Torokhov psmouse->model = priv->proto_version; 3219a09221e8SDmitry Torokhov } else { 3220a09221e8SDmitry Torokhov /* 3221a09221e8SDmitry Torokhov * Destroy alps_data structure we allocated earlier since 3222a09221e8SDmitry Torokhov * this was just a "trial run". Otherwise we'll keep it 3223a09221e8SDmitry Torokhov * to be used by alps_init() which has to be called if 3224a09221e8SDmitry Torokhov * we succeed and set_properties is true. 3225a09221e8SDmitry Torokhov */ 3226a09221e8SDmitry Torokhov kfree(priv); 3227a09221e8SDmitry Torokhov psmouse->private = NULL; 32281da177e4SLinus Torvalds } 3229a09221e8SDmitry Torokhov 32301da177e4SLinus Torvalds return 0; 32311da177e4SLinus Torvalds } 32321da177e4SLinus Torvalds 3233