| /* |
| * ALPS touchpad PS/2 mouse driver |
| * |
| * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> |
| * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> |
| * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> |
| * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> |
| * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> |
| * |
| * ALPS detection, tap switching and status querying info is taken from |
| * tpconfig utility (by C. Scott Ananian and Bruce Kall). |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| */ |
| |
| #include <linux/slab.h> |
| #include <linux/input.h> |
| #include <linux/input/mt.h> |
| #include <linux/serio.h> |
| #include <linux/libps2.h> |
| #include <linux/dmi.h> |
| |
| #include "psmouse.h" |
| #include "alps.h" |
| #include "trackpoint.h" |
| |
| /* |
| * Definitions for ALPS version 3 and 4 command mode protocol |
| */ |
| #define ALPS_CMD_NIBBLE_10 0x01f2 |
| |
| #define ALPS_REG_BASE_RUSHMORE 0xc2c0 |
| #define ALPS_REG_BASE_V7 0xc2c0 |
| #define ALPS_REG_BASE_PINNACLE 0x0000 |
| |
| static const struct alps_nibble_commands alps_v3_nibble_commands[] = { |
| { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ |
| { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ |
| { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ |
| { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ |
| { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ |
| { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ |
| { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ |
| { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ |
| { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ |
| { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ |
| { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ |
| { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ |
| { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ |
| { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ |
| { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ |
| { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ |
| }; |
| |
| static const struct alps_nibble_commands alps_v4_nibble_commands[] = { |
| { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ |
| { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ |
| { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ |
| { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ |
| { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ |
| { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ |
| { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ |
| { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ |
| { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ |
| { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ |
| { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ |
| { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ |
| { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ |
| { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ |
| { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ |
| { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ |
| }; |
| |
| static const struct alps_nibble_commands alps_v6_nibble_commands[] = { |
| { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ |
| { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ |
| { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ |
| { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ |
| { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ |
| { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ |
| { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ |
| { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ |
| { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ |
| { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ |
| { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ |
| { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ |
| { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ |
| { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ |
| { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ |
| { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ |
| }; |
| |
| |
| #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ |
| #define ALPS_PASS 0x04 /* device has a pass-through port */ |
| |
| #define ALPS_WHEEL 0x08 /* hardware wheel present */ |
| #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ |
| #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ |
| #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ |
| #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with |
| 6-byte ALPS packet */ |
| #define ALPS_STICK_BITS 0x100 /* separate stick button bits */ |
| #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ |
| #define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */ |
| |
| static const struct alps_model_info alps_model_data[] = { |
| /* |
| * XXX This entry is suspicious. First byte has zero lower nibble, |
| * which is what a normal mouse would report. Also, the value 0x0e |
| * isn't valid per PS/2 spec. |
| */ |
| { { 0x20, 0x02, 0x0e }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, |
| |
| { { 0x22, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, |
| { { 0x22, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D600 */ |
| { { 0x32, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */ |
| { { 0x33, 0x02, 0x0a }, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */ |
| { { 0x52, 0x01, 0x14 }, { ALPS_PROTO_V2, 0xff, 0xff, |
| ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */ |
| { { 0x53, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x53, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x60, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, /* HP ze1115 */ |
| { { 0x62, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xcf, 0xcf, |
| ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ |
| { { 0x63, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x63, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x63, 0x02, 0x28 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Fujitsu Siemens S6010 */ |
| { { 0x63, 0x02, 0x3c }, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-103 */ |
| { { 0x63, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 } }, /* NEC Versa L320 */ |
| { { 0x63, 0x02, 0x64 }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x63, 0x03, 0xc8 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Dell Latitude D800 */ |
| { { 0x73, 0x00, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG */ |
| { { 0x73, 0x00, 0x14 }, { ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT } }, /* Dell XT2 */ |
| { { 0x73, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } }, |
| { { 0x73, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } }, /* Ahtec Laptop */ |
| { { 0x73, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } }, /* Dell Vostro 1400 */ |
| }; |
| |
| static const struct alps_protocol_info alps_v3_protocol_data = { |
| ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE |
| }; |
| |
| static const struct alps_protocol_info alps_v3_rushmore_data = { |
| ALPS_PROTO_V3_RUSHMORE, 0x8f, 0x8f, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE |
| }; |
| |
| static const struct alps_protocol_info alps_v4_protocol_data = { |
| ALPS_PROTO_V4, 0x8f, 0x8f, 0 |
| }; |
| |
| static const struct alps_protocol_info alps_v5_protocol_data = { |
| ALPS_PROTO_V5, 0xc8, 0xd8, 0 |
| }; |
| |
| static const struct alps_protocol_info alps_v7_protocol_data = { |
| ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE |
| }; |
| |
| static const struct alps_protocol_info alps_v8_protocol_data = { |
| ALPS_PROTO_V8, 0x18, 0x18, 0 |
| }; |
| |
| static const struct alps_protocol_info alps_v9_protocol_data = { |
| ALPS_PROTO_V9, 0xc8, 0xc8, 0 |
| }; |
| |
| /* |
| * Some v2 models report the stick buttons in separate bits |
| */ |
| static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = { |
| #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
| { |
| /* Extrapolated from other entries */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D420"), |
| }, |
| }, |
| { |
| /* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D430"), |
| }, |
| }, |
| { |
| /* Reported-by: Hans de Goede <hdegoede@redhat.com> */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D620"), |
| }, |
| }, |
| { |
| /* Extrapolated from other entries */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D630"), |
| }, |
| }, |
| #endif |
| { } |
| }; |
| |
| static void alps_set_abs_params_st(struct alps_data *priv, |
| struct input_dev *dev1); |
| static void alps_set_abs_params_semi_mt(struct alps_data *priv, |
| struct input_dev *dev1); |
| static void alps_set_abs_params_v7(struct alps_data *priv, |
| struct input_dev *dev1); |
| static void alps_set_abs_params_ss4_v2(struct alps_data *priv, |
| struct input_dev *dev1); |
| |
| /* Packet formats are described in Documentation/input/devices/alps.rst */ |
| |
| static bool alps_is_valid_first_byte(struct alps_data *priv, |
| unsigned char data) |
| { |
| return (data & priv->mask0) == priv->byte0; |
| } |
| |
| static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, |
| int left, int right, int middle) |
| { |
| struct input_dev *dev; |
| |
| /* |
| * If shared button has already been reported on the |
| * other device (dev2) then this event should be also |
| * sent through that device. |
| */ |
| dev = (dev2 && test_bit(BTN_LEFT, dev2->key)) ? dev2 : dev1; |
| input_report_key(dev, BTN_LEFT, left); |
| |
| dev = (dev2 && test_bit(BTN_RIGHT, dev2->key)) ? dev2 : dev1; |
| input_report_key(dev, BTN_RIGHT, right); |
| |
| dev = (dev2 && test_bit(BTN_MIDDLE, dev2->key)) ? dev2 : dev1; |
| input_report_key(dev, BTN_MIDDLE, middle); |
| |
| /* |
| * Sync the _other_ device now, we'll do the first |
| * device later once we report the rest of the events. |
| */ |
| if (dev2) |
| input_sync(dev2); |
| } |
| |
| static void alps_process_packet_v1_v2(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev = psmouse->dev; |
| struct input_dev *dev2 = priv->dev2; |
| int x, y, z, ges, fin, left, right, middle; |
| int back = 0, forward = 0; |
| |
| if (priv->proto_version == ALPS_PROTO_V1) { |
| left = packet[2] & 0x10; |
| right = packet[2] & 0x08; |
| middle = 0; |
| x = packet[1] | ((packet[0] & 0x07) << 7); |
| y = packet[4] | ((packet[3] & 0x07) << 7); |
| z = packet[5]; |
| } else { |
| left = packet[3] & 1; |
| right = packet[3] & 2; |
| middle = packet[3] & 4; |
| x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); |
| y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); |
| z = packet[5]; |
| } |
| |
| if (priv->flags & ALPS_FW_BK_1) { |
| back = packet[0] & 0x10; |
| forward = packet[2] & 4; |
| } |
| |
| if (priv->flags & ALPS_FW_BK_2) { |
| back = packet[3] & 4; |
| forward = packet[2] & 4; |
| if ((middle = forward && back)) |
| forward = back = 0; |
| } |
| |
| ges = packet[2] & 1; |
| fin = packet[2] & 2; |
| |
| if ((priv->flags & ALPS_DUALPOINT) && z == 127) { |
| input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); |
| input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); |
| |
| alps_report_buttons(dev2, dev, left, right, middle); |
| |
| input_sync(dev2); |
| return; |
| } |
| |
| /* Some models have separate stick button bits */ |
| if (priv->flags & ALPS_STICK_BITS) { |
| left |= packet[0] & 1; |
| right |= packet[0] & 2; |
| middle |= packet[0] & 4; |
| } |
| |
| alps_report_buttons(dev, dev2, left, right, middle); |
| |
| /* Convert hardware tap to a reasonable Z value */ |
| if (ges && !fin) |
| z = 40; |
| |
| /* |
| * A "tap and drag" operation is reported by the hardware as a transition |
| * from (!fin && ges) to (fin && ges). This should be translated to the |
| * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. |
| */ |
| if (ges && fin && !priv->prev_fin) { |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| input_report_abs(dev, ABS_PRESSURE, 0); |
| input_report_key(dev, BTN_TOOL_FINGER, 0); |
| input_sync(dev); |
| } |
| priv->prev_fin = fin; |
| |
| if (z > 30) |
| input_report_key(dev, BTN_TOUCH, 1); |
| if (z < 25) |
| input_report_key(dev, BTN_TOUCH, 0); |
| |
| if (z > 0) { |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| } |
| |
| input_report_abs(dev, ABS_PRESSURE, z); |
| input_report_key(dev, BTN_TOOL_FINGER, z > 0); |
| |
| if (priv->flags & ALPS_WHEEL) |
| input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); |
| |
| if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
| input_report_key(dev, BTN_FORWARD, forward); |
| input_report_key(dev, BTN_BACK, back); |
| } |
| |
| if (priv->flags & ALPS_FOUR_BUTTONS) { |
| input_report_key(dev, BTN_0, packet[2] & 4); |
| input_report_key(dev, BTN_1, packet[0] & 0x10); |
| input_report_key(dev, BTN_2, packet[3] & 4); |
| input_report_key(dev, BTN_3, packet[0] & 0x20); |
| } |
| |
| input_sync(dev); |
| } |
| |
| static void alps_get_bitmap_points(unsigned int map, |
| struct alps_bitmap_point *low, |
| struct alps_bitmap_point *high, |
| int *fingers) |
| { |
| struct alps_bitmap_point *point; |
| int i, bit, prev_bit = 0; |
| |
| point = low; |
| for (i = 0; map != 0; i++, map >>= 1) { |
| bit = map & 1; |
| if (bit) { |
| if (!prev_bit) { |
| point->start_bit = i; |
| point->num_bits = 0; |
| (*fingers)++; |
| } |
| point->num_bits++; |
| } else { |
| if (prev_bit) |
| point = high; |
| } |
| prev_bit = bit; |
| } |
| } |
| |
| /* |
| * Process bitmap data from semi-mt protocols. Returns the number of |
| * fingers detected. A return value of 0 means at least one of the |
| * bitmaps was empty. |
| * |
| * The bitmaps don't have enough data to track fingers, so this function |
| * only generates points representing a bounding box of all contacts. |
| * These points are returned in fields->mt when the return value |
| * is greater than 0. |
| */ |
| static int alps_process_bitmap(struct alps_data *priv, |
| struct alps_fields *fields) |
| { |
| int i, fingers_x = 0, fingers_y = 0, fingers, closest; |
| struct alps_bitmap_point x_low = {0,}, x_high = {0,}; |
| struct alps_bitmap_point y_low = {0,}, y_high = {0,}; |
| struct input_mt_pos corner[4]; |
| |
| if (!fields->x_map || !fields->y_map) |
| return 0; |
| |
| alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); |
| alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); |
| |
| /* |
| * Fingers can overlap, so we use the maximum count of fingers |
| * on either axis as the finger count. |
| */ |
| fingers = max(fingers_x, fingers_y); |
| |
| /* |
| * If an axis reports only a single contact, we have overlapping or |
| * adjacent fingers. Divide the single contact between the two points. |
| */ |
| if (fingers_x == 1) { |
| i = (x_low.num_bits - 1) / 2; |
| x_low.num_bits = x_low.num_bits - i; |
| x_high.start_bit = x_low.start_bit + i; |
| x_high.num_bits = max(i, 1); |
| } |
| if (fingers_y == 1) { |
| i = (y_low.num_bits - 1) / 2; |
| y_low.num_bits = y_low.num_bits - i; |
| y_high.start_bit = y_low.start_bit + i; |
| y_high.num_bits = max(i, 1); |
| } |
| |
| /* top-left corner */ |
| corner[0].x = |
| (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / |
| (2 * (priv->x_bits - 1)); |
| corner[0].y = |
| (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / |
| (2 * (priv->y_bits - 1)); |
| |
| /* top-right corner */ |
| corner[1].x = |
| (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / |
| (2 * (priv->x_bits - 1)); |
| corner[1].y = |
| (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / |
| (2 * (priv->y_bits - 1)); |
| |
| /* bottom-right corner */ |
| corner[2].x = |
| (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / |
| (2 * (priv->x_bits - 1)); |
| corner[2].y = |
| (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / |
| (2 * (priv->y_bits - 1)); |
| |
| /* bottom-left corner */ |
| corner[3].x = |
| (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / |
| (2 * (priv->x_bits - 1)); |
| corner[3].y = |
| (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / |
| (2 * (priv->y_bits - 1)); |
| |
| /* x-bitmap order is reversed on v5 touchpads */ |
| if (priv->proto_version == ALPS_PROTO_V5) { |
| for (i = 0; i < 4; i++) |
| corner[i].x = priv->x_max - corner[i].x; |
| } |
| |
| /* y-bitmap order is reversed on v3 and v4 touchpads */ |
| if (priv->proto_version == ALPS_PROTO_V3 || |
| priv->proto_version == ALPS_PROTO_V4) { |
| for (i = 0; i < 4; i++) |
| corner[i].y = priv->y_max - corner[i].y; |
| } |
| |
| /* |
| * We only select a corner for the second touch once per 2 finger |
| * touch sequence to avoid the chosen corner (and thus the coordinates) |
| * jumping around when the first touch is in the middle. |
| */ |
| if (priv->second_touch == -1) { |
| /* Find corner closest to our st coordinates */ |
| closest = 0x7fffffff; |
| for (i = 0; i < 4; i++) { |
| int dx = fields->st.x - corner[i].x; |
| int dy = fields->st.y - corner[i].y; |
| int distance = dx * dx + dy * dy; |
| |
| if (distance < closest) { |
| priv->second_touch = i; |
| closest = distance; |
| } |
| } |
| /* And select the opposite corner to use for the 2nd touch */ |
| priv->second_touch = (priv->second_touch + 2) % 4; |
| } |
| |
| fields->mt[0] = fields->st; |
| fields->mt[1] = corner[priv->second_touch]; |
| |
| return fingers; |
| } |
| |
| static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) |
| { |
| input_mt_slot(dev, slot); |
| input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); |
| input_report_abs(dev, ABS_MT_POSITION_X, x); |
| input_report_abs(dev, ABS_MT_POSITION_Y, y); |
| } |
| |
| static void alps_report_mt_data(struct psmouse *psmouse, int n) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct input_dev *dev = psmouse->dev; |
| struct alps_fields *f = &priv->f; |
| int i, slot[MAX_TOUCHES]; |
| |
| input_mt_assign_slots(dev, slot, f->mt, n, 0); |
| for (i = 0; i < n; i++) |
| alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); |
| |
| input_mt_sync_frame(dev); |
| } |
| |
| static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct input_dev *dev = psmouse->dev; |
| struct alps_fields *f = &priv->f; |
| |
| /* Use st data when we don't have mt data */ |
| if (fingers < 2) { |
| f->mt[0].x = f->st.x; |
| f->mt[0].y = f->st.y; |
| fingers = f->pressure > 0 ? 1 : 0; |
| priv->second_touch = -1; |
| } |
| |
| if (fingers >= 1) |
| alps_set_slot(dev, 0, f->mt[0].x, f->mt[0].y); |
| if (fingers >= 2) |
| alps_set_slot(dev, 1, f->mt[1].x, f->mt[1].y); |
| input_mt_sync_frame(dev); |
| |
| input_mt_report_finger_count(dev, fingers); |
| |
| input_report_key(dev, BTN_LEFT, f->left); |
| input_report_key(dev, BTN_RIGHT, f->right); |
| input_report_key(dev, BTN_MIDDLE, f->middle); |
| |
| input_report_abs(dev, ABS_PRESSURE, f->pressure); |
| |
| input_sync(dev); |
| } |
| |
| static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev = priv->dev2; |
| int x, y, z, left, right, middle; |
| |
| /* It should be a DualPoint when received trackstick packet */ |
| if (!(priv->flags & ALPS_DUALPOINT)) { |
| psmouse_warn(psmouse, |
| "Rejected trackstick packet from non DualPoint device"); |
| return; |
| } |
| |
| /* Sanity check packet */ |
| if (!(packet[0] & 0x40)) { |
| psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); |
| return; |
| } |
| |
| /* |
| * There's a special packet that seems to indicate the end |
| * of a stream of trackstick data. Filter these out. |
| */ |
| if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) |
| return; |
| |
| x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); |
| y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); |
| z = packet[4] & 0x7f; |
| |
| /* |
| * The x and y values tend to be quite large, and when used |
| * alone the trackstick is difficult to use. Scale them down |
| * to compensate. |
| */ |
| x /= 8; |
| y /= 8; |
| |
| input_report_rel(dev, REL_X, x); |
| input_report_rel(dev, REL_Y, -y); |
| input_report_abs(dev, ABS_PRESSURE, z); |
| |
| /* |
| * Most ALPS models report the trackstick buttons in the touchpad |
| * packets, but a few report them here. No reliable way has been |
| * found to differentiate between the models upfront, so we enable |
| * the quirk in response to seeing a button press in the trackstick |
| * packet. |
| */ |
| left = packet[3] & 0x01; |
| right = packet[3] & 0x02; |
| middle = packet[3] & 0x04; |
| |
| if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && |
| (left || right || middle)) |
| priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; |
| |
| if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { |
| input_report_key(dev, BTN_LEFT, left); |
| input_report_key(dev, BTN_RIGHT, right); |
| input_report_key(dev, BTN_MIDDLE, middle); |
| } |
| |
| input_sync(dev); |
| return; |
| } |
| |
| static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) |
| { |
| f->left = !!(p[3] & 0x01); |
| f->right = !!(p[3] & 0x02); |
| f->middle = !!(p[3] & 0x04); |
| |
| f->ts_left = !!(p[3] & 0x10); |
| f->ts_right = !!(p[3] & 0x20); |
| f->ts_middle = !!(p[3] & 0x40); |
| } |
| |
| static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, |
| struct psmouse *psmouse) |
| { |
| f->first_mp = !!(p[4] & 0x40); |
| f->is_mp = !!(p[0] & 0x40); |
| |
| if (f->is_mp) { |
| f->fingers = (p[5] & 0x3) + 1; |
| f->x_map = ((p[4] & 0x7e) << 8) | |
| ((p[1] & 0x7f) << 2) | |
| ((p[0] & 0x30) >> 4); |
| f->y_map = ((p[3] & 0x70) << 4) | |
| ((p[2] & 0x7f) << 1) | |
| (p[4] & 0x01); |
| } else { |
| f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | |
| ((p[0] & 0x30) >> 4); |
| f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); |
| f->pressure = p[5] & 0x7f; |
| |
| alps_decode_buttons_v3(f, p); |
| } |
| |
| return 0; |
| } |
| |
| static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, |
| struct psmouse *psmouse) |
| { |
| f->first_mp = !!(p[4] & 0x40); |
| f->is_mp = !!(p[5] & 0x40); |
| |
| if (f->is_mp) { |
| f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; |
| f->x_map = ((p[5] & 0x10) << 11) | |
| ((p[4] & 0x7e) << 8) | |
| ((p[1] & 0x7f) << 2) | |
| ((p[0] & 0x30) >> 4); |
| f->y_map = ((p[5] & 0x20) << 6) | |
| ((p[3] & 0x70) << 4) | |
| ((p[2] & 0x7f) << 1) | |
| (p[4] & 0x01); |
| } else { |
| f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | |
| ((p[0] & 0x30) >> 4); |
| f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); |
| f->pressure = p[5] & 0x7f; |
| |
| alps_decode_buttons_v3(f, p); |
| } |
| |
| return 0; |
| } |
| |
| static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, |
| struct psmouse *psmouse) |
| { |
| u64 palm_data = 0; |
| struct alps_data *priv = psmouse->private; |
| |
| f->first_mp = !!(p[0] & 0x02); |
| f->is_mp = !!(p[0] & 0x20); |
| |
| if (!f->is_mp) { |
| f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); |
| f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); |
| f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; |
| alps_decode_buttons_v3(f, p); |
| } else { |
| f->fingers = ((p[0] & 0x6) >> 1 | |
| (p[0] & 0x10) >> 2); |
| |
| palm_data = (p[1] & 0x7f) | |
| ((p[2] & 0x7f) << 7) | |
| ((p[4] & 0x7f) << 14) | |
| ((p[5] & 0x7f) << 21) | |
| ((p[3] & 0x07) << 28) | |
| (((u64)p[3] & 0x70) << 27) | |
| (((u64)p[0] & 0x01) << 34); |
| |
| /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ |
| f->y_map = palm_data & (BIT(priv->y_bits) - 1); |
| |
| /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ |
| f->x_map = (palm_data >> priv->y_bits) & |
| (BIT(priv->x_bits) - 1); |
| } |
| |
| return 0; |
| } |
| |
| static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev2 = priv->dev2; |
| struct alps_fields *f = &priv->f; |
| int fingers = 0; |
| |
| memset(f, 0, sizeof(*f)); |
| |
| priv->decode_fields(f, packet, psmouse); |
| |
| /* |
| * There's no single feature of touchpad position and bitmap packets |
| * that can be used to distinguish between them. We rely on the fact |
| * that a bitmap packet should always follow a position packet with |
| * bit 6 of packet[4] set. |
| */ |
| if (priv->multi_packet) { |
| /* |
| * Sometimes a position packet will indicate a multi-packet |
| * sequence, but then what follows is another position |
| * packet. Check for this, and when it happens process the |
| * position packet as usual. |
| */ |
| if (f->is_mp) { |
| fingers = f->fingers; |
| /* |
| * Bitmap processing uses position packet's coordinate |
| * data, so we need to do decode it first. |
| */ |
| priv->decode_fields(f, priv->multi_data, psmouse); |
| if (alps_process_bitmap(priv, f) == 0) |
| fingers = 0; /* Use st data */ |
| } else { |
| priv->multi_packet = 0; |
| } |
| } |
| |
| /* |
| * Bit 6 of byte 0 is not usually set in position packets. The only |
| * times it seems to be set is in situations where the data is |
| * suspect anyway, e.g. a palm resting flat on the touchpad. Given |
| * this combined with the fact that this bit is useful for filtering |
| * out misidentified bitmap packets, we reject anything with this |
| * bit set. |
| */ |
| if (f->is_mp) |
| return; |
| |
| if (!priv->multi_packet && f->first_mp) { |
| priv->multi_packet = 1; |
| memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); |
| return; |
| } |
| |
| priv->multi_packet = 0; |
| |
| /* |
| * Sometimes the hardware sends a single packet with z = 0 |
| * in the middle of a stream. Real releases generate packets |
| * with x, y, and z all zero, so these seem to be flukes. |
| * Ignore them. |
| */ |
| if (f->st.x && f->st.y && !f->pressure) |
| return; |
| |
| alps_report_semi_mt_data(psmouse, fingers); |
| |
| if ((priv->flags & ALPS_DUALPOINT) && |
| !(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { |
| input_report_key(dev2, BTN_LEFT, f->ts_left); |
| input_report_key(dev2, BTN_RIGHT, f->ts_right); |
| input_report_key(dev2, BTN_MIDDLE, f->ts_middle); |
| input_sync(dev2); |
| } |
| } |
| |
| static void alps_process_packet_v3(struct psmouse *psmouse) |
| { |
| unsigned char *packet = psmouse->packet; |
| |
| /* |
| * v3 protocol packets come in three types, two representing |
| * touchpad data and one representing trackstick data. |
| * Trackstick packets seem to be distinguished by always |
| * having 0x3f in the last byte. This value has never been |
| * observed in the last byte of either of the other types |
| * of packets. |
| */ |
| if (packet[5] == 0x3f) { |
| alps_process_trackstick_packet_v3(psmouse); |
| return; |
| } |
| |
| alps_process_touchpad_packet_v3_v5(psmouse); |
| } |
| |
| static void alps_process_packet_v6(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev = psmouse->dev; |
| struct input_dev *dev2 = priv->dev2; |
| int x, y, z; |
| |
| /* |
| * We can use Byte5 to distinguish if the packet is from Touchpad |
| * or Trackpoint. |
| * Touchpad: 0 - 0x7E |
| * Trackpoint: 0x7F |
| */ |
| if (packet[5] == 0x7F) { |
| /* It should be a DualPoint when received Trackpoint packet */ |
| if (!(priv->flags & ALPS_DUALPOINT)) { |
| psmouse_warn(psmouse, |
| "Rejected trackstick packet from non DualPoint device"); |
| return; |
| } |
| |
| /* Trackpoint packet */ |
| x = packet[1] | ((packet[3] & 0x20) << 2); |
| y = packet[2] | ((packet[3] & 0x40) << 1); |
| z = packet[4]; |
| |
| /* To prevent the cursor jump when finger lifted */ |
| if (x == 0x7F && y == 0x7F && z == 0x7F) |
| x = y = z = 0; |
| |
| /* Divide 4 since trackpoint's speed is too fast */ |
| input_report_rel(dev2, REL_X, (char)x / 4); |
| input_report_rel(dev2, REL_Y, -((char)y / 4)); |
| |
| psmouse_report_standard_buttons(dev2, packet[3]); |
| |
| input_sync(dev2); |
| return; |
| } |
| |
| /* Touchpad packet */ |
| x = packet[1] | ((packet[3] & 0x78) << 4); |
| y = packet[2] | ((packet[4] & 0x78) << 4); |
| z = packet[5]; |
| |
| if (z > 30) |
| input_report_key(dev, BTN_TOUCH, 1); |
| if (z < 25) |
| input_report_key(dev, BTN_TOUCH, 0); |
| |
| if (z > 0) { |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| } |
| |
| input_report_abs(dev, ABS_PRESSURE, z); |
| input_report_key(dev, BTN_TOOL_FINGER, z > 0); |
| |
| /* v6 touchpad does not have middle button */ |
| packet[3] &= ~BIT(2); |
| psmouse_report_standard_buttons(dev2, packet[3]); |
| |
| input_sync(dev); |
| } |
| |
| static void alps_process_packet_v4(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct alps_fields *f = &priv->f; |
| int offset; |
| |
| /* |
| * v4 has a 6-byte encoding for bitmap data, but this data is |
| * broken up between 3 normal packets. Use priv->multi_packet to |
| * track our position in the bitmap packet. |
| */ |
| if (packet[6] & 0x40) { |
| /* sync, reset position */ |
| priv->multi_packet = 0; |
| } |
| |
| if (WARN_ON_ONCE(priv->multi_packet > 2)) |
| return; |
| |
| offset = 2 * priv->multi_packet; |
| priv->multi_data[offset] = packet[6]; |
| priv->multi_data[offset + 1] = packet[7]; |
| |
| f->left = !!(packet[4] & 0x01); |
| f->right = !!(packet[4] & 0x02); |
| |
| f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | |
| ((packet[0] & 0x30) >> 4); |
| f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); |
| f->pressure = packet[5] & 0x7f; |
| |
| if (++priv->multi_packet > 2) { |
| priv->multi_packet = 0; |
| |
| f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | |
| ((priv->multi_data[3] & 0x60) << 3) | |
| ((priv->multi_data[0] & 0x3f) << 2) | |
| ((priv->multi_data[1] & 0x60) >> 5); |
| f->y_map = ((priv->multi_data[5] & 0x01) << 10) | |
| ((priv->multi_data[3] & 0x1f) << 5) | |
| (priv->multi_data[1] & 0x1f); |
| |
| f->fingers = alps_process_bitmap(priv, f); |
| } |
| |
| alps_report_semi_mt_data(psmouse, f->fingers); |
| } |
| |
| static bool alps_is_valid_package_v7(struct psmouse *psmouse) |
| { |
| switch (psmouse->pktcnt) { |
| case 3: |
| return (psmouse->packet[2] & 0x40) == 0x40; |
| case 4: |
| return (psmouse->packet[3] & 0x48) == 0x48; |
| case 6: |
| return (psmouse->packet[5] & 0x40) == 0x00; |
| } |
| return true; |
| } |
| |
| static unsigned char alps_get_packet_id_v7(char *byte) |
| { |
| unsigned char packet_id; |
| |
| if (byte[4] & 0x40) |
| packet_id = V7_PACKET_ID_TWO; |
| else if (byte[4] & 0x01) |
| packet_id = V7_PACKET_ID_MULTI; |
| else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) |
| packet_id = V7_PACKET_ID_NEW; |
| else if (byte[1] == 0x00 && byte[4] == 0x00) |
| packet_id = V7_PACKET_ID_IDLE; |
| else |
| packet_id = V7_PACKET_ID_UNKNOWN; |
| |
| return packet_id; |
| } |
| |
| static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, |
| unsigned char *pkt, |
| unsigned char pkt_id) |
| { |
| mt[0].x = ((pkt[2] & 0x80) << 4); |
| mt[0].x |= ((pkt[2] & 0x3F) << 5); |
| mt[0].x |= ((pkt[3] & 0x30) >> 1); |
| mt[0].x |= (pkt[3] & 0x07); |
| mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); |
| |
| mt[1].x = ((pkt[3] & 0x80) << 4); |
| mt[1].x |= ((pkt[4] & 0x80) << 3); |
| mt[1].x |= ((pkt[4] & 0x3F) << 4); |
| mt[1].y = ((pkt[5] & 0x80) << 3); |
| mt[1].y |= ((pkt[5] & 0x3F) << 4); |
| |
| switch (pkt_id) { |
| case V7_PACKET_ID_TWO: |
| mt[1].x &= ~0x000F; |
| mt[1].y |= 0x000F; |
| /* Detect false-postive touches where x & y report max value */ |
| if (mt[1].y == 0x7ff && mt[1].x == 0xff0) { |
| mt[1].x = 0; |
| /* y gets set to 0 at the end of this function */ |
| } |
| break; |
| |
| case V7_PACKET_ID_MULTI: |
| mt[1].x &= ~0x003F; |
| mt[1].y &= ~0x0020; |
| mt[1].y |= ((pkt[4] & 0x02) << 4); |
| mt[1].y |= 0x001F; |
| break; |
| |
| case V7_PACKET_ID_NEW: |
| mt[1].x &= ~0x003F; |
| mt[1].x |= (pkt[0] & 0x20); |
| mt[1].y |= 0x000F; |
| break; |
| } |
| |
| mt[0].y = 0x7FF - mt[0].y; |
| mt[1].y = 0x7FF - mt[1].y; |
| } |
| |
| static int alps_get_mt_count(struct input_mt_pos *mt) |
| { |
| int i, fingers = 0; |
| |
| for (i = 0; i < MAX_TOUCHES; i++) { |
| if (mt[i].x != 0 || mt[i].y != 0) |
| fingers++; |
| } |
| |
| return fingers; |
| } |
| |
| static int alps_decode_packet_v7(struct alps_fields *f, |
| unsigned char *p, |
| struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char pkt_id; |
| |
| pkt_id = alps_get_packet_id_v7(p); |
| if (pkt_id == V7_PACKET_ID_IDLE) |
| return 0; |
| if (pkt_id == V7_PACKET_ID_UNKNOWN) |
| return -1; |
| /* |
| * NEW packets are send to indicate a discontinuity in the finger |
| * coordinate reporting. Specifically a finger may have moved from |
| * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for |
| * us. |
| * |
| * NEW packets have 3 problems: |
| * 1) They do not contain middle / right button info (on non clickpads) |
| * this can be worked around by preserving the old button state |
| * 2) They do not contain an accurate fingercount, and they are |
| * typically send when the number of fingers changes. We cannot use |
| * the old finger count as that may mismatch with the amount of |
| * touch coordinates we've available in the NEW packet |
| * 3) Their x data for the second touch is inaccurate leading to |
| * a possible jump of the x coordinate by 16 units when the first |
| * non NEW packet comes in |
| * Since problems 2 & 3 cannot be worked around, just ignore them. |
| */ |
| if (pkt_id == V7_PACKET_ID_NEW) |
| return 1; |
| |
| alps_get_finger_coordinate_v7(f->mt, p, pkt_id); |
| |
| if (pkt_id == V7_PACKET_ID_TWO) |
| f->fingers = alps_get_mt_count(f->mt); |
| else /* pkt_id == V7_PACKET_ID_MULTI */ |
| f->fingers = 3 + (p[5] & 0x03); |
| |
| f->left = (p[0] & 0x80) >> 7; |
| if (priv->flags & ALPS_BUTTONPAD) { |
| if (p[0] & 0x20) |
| f->fingers++; |
| if (p[0] & 0x10) |
| f->fingers++; |
| } else { |
| f->right = (p[0] & 0x20) >> 5; |
| f->middle = (p[0] & 0x10) >> 4; |
| } |
| |
| /* Sometimes a single touch is reported in mt[1] rather then mt[0] */ |
| if (f->fingers == 1 && f->mt[0].x == 0 && f->mt[0].y == 0) { |
| f->mt[0].x = f->mt[1].x; |
| f->mt[0].y = f->mt[1].y; |
| f->mt[1].x = 0; |
| f->mt[1].y = 0; |
| } |
| |
| return 0; |
| } |
| |
| static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev2 = priv->dev2; |
| int x, y, z; |
| |
| /* It should be a DualPoint when received trackstick packet */ |
| if (!(priv->flags & ALPS_DUALPOINT)) { |
| psmouse_warn(psmouse, |
| "Rejected trackstick packet from non DualPoint device"); |
| return; |
| } |
| |
| x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); |
| y = (packet[3] & 0x07) | (packet[4] & 0xb8) | |
| ((packet[3] & 0x20) << 1); |
| z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); |
| |
| input_report_rel(dev2, REL_X, (char)x); |
| input_report_rel(dev2, REL_Y, -((char)y)); |
| input_report_abs(dev2, ABS_PRESSURE, z); |
| |
| psmouse_report_standard_buttons(dev2, packet[1]); |
| |
| input_sync(dev2); |
| } |
| |
| static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct input_dev *dev = psmouse->dev; |
| struct alps_fields *f = &priv->f; |
| |
| memset(f, 0, sizeof(*f)); |
| |
| if (priv->decode_fields(f, psmouse->packet, psmouse)) |
| return; |
| |
| alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); |
| |
| input_mt_report_finger_count(dev, f->fingers); |
| |
| input_report_key(dev, BTN_LEFT, f->left); |
| input_report_key(dev, BTN_RIGHT, f->right); |
| input_report_key(dev, BTN_MIDDLE, f->middle); |
| |
| input_sync(dev); |
| } |
| |
| static void alps_process_packet_v7(struct psmouse *psmouse) |
| { |
| unsigned char *packet = psmouse->packet; |
| |
| if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) |
| alps_process_trackstick_packet_v7(psmouse); |
| else |
| alps_process_touchpad_packet_v7(psmouse); |
| } |
| |
| static enum SS4_PACKET_ID alps_get_pkt_id_ss4_v2(unsigned char *byte) |
| { |
| enum SS4_PACKET_ID pkt_id = SS4_PACKET_ID_IDLE; |
| |
| switch (byte[3] & 0x30) { |
| case 0x00: |
| if (SS4_IS_IDLE_V2(byte)) { |
| pkt_id = SS4_PACKET_ID_IDLE; |
| } else { |
| pkt_id = SS4_PACKET_ID_ONE; |
| } |
| break; |
| case 0x10: |
| /* two-finger finger positions */ |
| pkt_id = SS4_PACKET_ID_TWO; |
| break; |
| case 0x20: |
| /* stick pointer */ |
| pkt_id = SS4_PACKET_ID_STICK; |
| break; |
| case 0x30: |
| /* third and fourth finger positions */ |
| pkt_id = SS4_PACKET_ID_MULTI; |
| break; |
| } |
| |
| return pkt_id; |
| } |
| |
| static int alps_decode_ss4_v2(struct alps_fields *f, |
| unsigned char *p, struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| enum SS4_PACKET_ID pkt_id; |
| unsigned int no_data_x, no_data_y; |
| |
| pkt_id = alps_get_pkt_id_ss4_v2(p); |
| |
| /* Current packet is 1Finger coordinate packet */ |
| switch (pkt_id) { |
| case SS4_PACKET_ID_ONE: |
| f->mt[0].x = SS4_1F_X_V2(p); |
| f->mt[0].y = SS4_1F_Y_V2(p); |
| f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f; |
| /* |
| * When a button is held the device will give us events |
| * with x, y, and pressure of 0. This causes annoying jumps |
| * if a touch is released while the button is held. |
| * Handle this by claiming zero contacts. |
| */ |
| f->fingers = f->pressure > 0 ? 1 : 0; |
| f->first_mp = 0; |
| f->is_mp = 0; |
| break; |
| |
| case SS4_PACKET_ID_TWO: |
| if (priv->flags & ALPS_BUTTONPAD) { |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| f->mt[0].x = SS4_PLUS_BTL_MF_X_V2(p, 0); |
| f->mt[1].x = SS4_PLUS_BTL_MF_X_V2(p, 1); |
| } else { |
| f->mt[0].x = SS4_BTL_MF_X_V2(p, 0); |
| f->mt[1].x = SS4_BTL_MF_X_V2(p, 1); |
| } |
| f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0); |
| f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1); |
| } else { |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| f->mt[0].x = SS4_PLUS_STD_MF_X_V2(p, 0); |
| f->mt[1].x = SS4_PLUS_STD_MF_X_V2(p, 1); |
| } else { |
| f->mt[0].x = SS4_STD_MF_X_V2(p, 0); |
| f->mt[1].x = SS4_STD_MF_X_V2(p, 1); |
| } |
| f->mt[0].y = SS4_STD_MF_Y_V2(p, 0); |
| f->mt[1].y = SS4_STD_MF_Y_V2(p, 1); |
| } |
| f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0; |
| |
| if (SS4_IS_MF_CONTINUE(p)) { |
| f->first_mp = 1; |
| } else { |
| f->fingers = 2; |
| f->first_mp = 0; |
| } |
| f->is_mp = 0; |
| |
| break; |
| |
| case SS4_PACKET_ID_MULTI: |
| if (priv->flags & ALPS_BUTTONPAD) { |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| f->mt[2].x = SS4_PLUS_BTL_MF_X_V2(p, 0); |
| f->mt[3].x = SS4_PLUS_BTL_MF_X_V2(p, 1); |
| no_data_x = SS4_PLUS_MFPACKET_NO_AX_BL; |
| } else { |
| f->mt[2].x = SS4_BTL_MF_X_V2(p, 0); |
| f->mt[3].x = SS4_BTL_MF_X_V2(p, 1); |
| no_data_x = SS4_MFPACKET_NO_AX_BL; |
| } |
| no_data_y = SS4_MFPACKET_NO_AY_BL; |
| |
| f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0); |
| f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1); |
| } else { |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| f->mt[2].x = SS4_PLUS_STD_MF_X_V2(p, 0); |
| f->mt[3].x = SS4_PLUS_STD_MF_X_V2(p, 1); |
| no_data_x = SS4_PLUS_MFPACKET_NO_AX; |
| } else { |
| f->mt[2].x = SS4_STD_MF_X_V2(p, 0); |
| f->mt[3].x = SS4_STD_MF_X_V2(p, 1); |
| no_data_x = SS4_MFPACKET_NO_AX; |
| } |
| no_data_y = SS4_MFPACKET_NO_AY; |
| |
| f->mt[2].y = SS4_STD_MF_Y_V2(p, 0); |
| f->mt[3].y = SS4_STD_MF_Y_V2(p, 1); |
| } |
| |
| f->first_mp = 0; |
| f->is_mp = 1; |
| |
| if (SS4_IS_5F_DETECTED(p)) { |
| f->fingers = 5; |
| } else if (f->mt[3].x == no_data_x && |
| f->mt[3].y == no_data_y) { |
| f->mt[3].x = 0; |
| f->mt[3].y = 0; |
| f->fingers = 3; |
| } else { |
| f->fingers = 4; |
| } |
| break; |
| |
| case SS4_PACKET_ID_STICK: |
| /* |
| * x, y, and pressure are decoded in |
| * alps_process_packet_ss4_v2() |
| */ |
| f->first_mp = 0; |
| f->is_mp = 0; |
| break; |
| |
| case SS4_PACKET_ID_IDLE: |
| default: |
| memset(f, 0, sizeof(struct alps_fields)); |
| break; |
| } |
| |
| /* handle buttons */ |
| if (pkt_id == SS4_PACKET_ID_STICK) { |
| f->ts_left = !!(SS4_BTN_V2(p) & 0x01); |
| f->ts_right = !!(SS4_BTN_V2(p) & 0x02); |
| f->ts_middle = !!(SS4_BTN_V2(p) & 0x04); |
| } else { |
| f->left = !!(SS4_BTN_V2(p) & 0x01); |
| if (!(priv->flags & ALPS_BUTTONPAD)) { |
| f->right = !!(SS4_BTN_V2(p) & 0x02); |
| f->middle = !!(SS4_BTN_V2(p) & 0x04); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void alps_process_packet_ss4_v2(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev = psmouse->dev; |
| struct input_dev *dev2 = priv->dev2; |
| struct alps_fields *f = &priv->f; |
| |
| memset(f, 0, sizeof(struct alps_fields)); |
| priv->decode_fields(f, packet, psmouse); |
| if (priv->multi_packet) { |
| /* |
| * Sometimes the first packet will indicate a multi-packet |
| * sequence, but sometimes the next multi-packet would not |
| * come. Check for this, and when it happens process the |
| * position packet as usual. |
| */ |
| if (f->is_mp) { |
| /* Now process the 1st packet */ |
| priv->decode_fields(f, priv->multi_data, psmouse); |
| } else { |
| priv->multi_packet = 0; |
| } |
| } |
| |
| /* |
| * "f.is_mp" would always be '0' after merging the 1st and 2nd packet. |
| * When it is set, it means 2nd packet comes without 1st packet come. |
| */ |
| if (f->is_mp) |
| return; |
| |
| /* Save the first packet */ |
| if (!priv->multi_packet && f->first_mp) { |
| priv->multi_packet = 1; |
| memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); |
| return; |
| } |
| |
| priv->multi_packet = 0; |
| |
| /* Report trackstick */ |
| if (alps_get_pkt_id_ss4_v2(packet) == SS4_PACKET_ID_STICK) { |
| if (!(priv->flags & ALPS_DUALPOINT)) { |
| psmouse_warn(psmouse, |
| "Rejected trackstick packet from non DualPoint device"); |
| return; |
| } |
| |
| input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet)); |
| input_report_rel(dev2, REL_Y, SS4_TS_Y_V2(packet)); |
| input_report_abs(dev2, ABS_PRESSURE, SS4_TS_Z_V2(packet)); |
| |
| input_report_key(dev2, BTN_LEFT, f->ts_left); |
| input_report_key(dev2, BTN_RIGHT, f->ts_right); |
| input_report_key(dev2, BTN_MIDDLE, f->ts_middle); |
| |
| input_sync(dev2); |
| return; |
| } |
| |
| /* Report touchpad */ |
| alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4); |
| |
| input_mt_report_finger_count(dev, f->fingers); |
| |
| input_report_key(dev, BTN_LEFT, f->left); |
| input_report_key(dev, BTN_RIGHT, f->right); |
| input_report_key(dev, BTN_MIDDLE, f->middle); |
| |
| input_report_abs(dev, ABS_PRESSURE, f->pressure); |
| input_sync(dev); |
| } |
| |
| static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) |
| { |
| if (psmouse->pktcnt == 4 && ((psmouse->packet[3] & 0x08) != 0x08)) |
| return false; |
| if (psmouse->pktcnt == 6 && ((psmouse->packet[5] & 0x10) != 0x0)) |
| return false; |
| return true; |
| } |
| |
| static DEFINE_MUTEX(alps_mutex); |
| |
| static void alps_register_bare_ps2_mouse(struct work_struct *work) |
| { |
| struct alps_data *priv = |
| container_of(work, struct alps_data, dev3_register_work.work); |
| struct psmouse *psmouse = priv->psmouse; |
| struct input_dev *dev3; |
| int error = 0; |
| |
| mutex_lock(&alps_mutex); |
| |
| if (priv->dev3) |
| goto out; |
| |
| dev3 = input_allocate_device(); |
| if (!dev3) { |
| psmouse_err(psmouse, "failed to allocate secondary device\n"); |
| error = -ENOMEM; |
| goto out; |
| } |
| |
| snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s", |
| psmouse->ps2dev.serio->phys, |
| (priv->dev2 ? "input2" : "input1")); |
| dev3->phys = priv->phys3; |
| |
| /* |
| * format of input device name is: "protocol vendor name" |
| * see function psmouse_switch_protocol() in psmouse-base.c |
| */ |
| dev3->name = "PS/2 ALPS Mouse"; |
| |
| dev3->id.bustype = BUS_I8042; |
| dev3->id.vendor = 0x0002; |
| dev3->id.product = PSMOUSE_PS2; |
| dev3->id.version = 0x0000; |
| dev3->dev.parent = &psmouse->ps2dev.serio->dev; |
| |
| input_set_capability(dev3, EV_REL, REL_X); |
| input_set_capability(dev3, EV_REL, REL_Y); |
| input_set_capability(dev3, EV_KEY, BTN_LEFT); |
| input_set_capability(dev3, EV_KEY, BTN_RIGHT); |
| input_set_capability(dev3, EV_KEY, BTN_MIDDLE); |
| |
| __set_bit(INPUT_PROP_POINTER, dev3->propbit); |
| |
| error = input_register_device(dev3); |
| if (error) { |
| psmouse_err(psmouse, |
| "failed to register secondary device: %d\n", |
| error); |
| input_free_device(dev3); |
| goto out; |
| } |
| |
| priv->dev3 = dev3; |
| |
| out: |
| /* |
| * Save the error code so that we can detect that we |
| * already tried to create the device. |
| */ |
| if (error) |
| priv->dev3 = ERR_PTR(error); |
| |
| mutex_unlock(&alps_mutex); |
| } |
| |
| static void alps_report_bare_ps2_packet(struct psmouse *psmouse, |
| unsigned char packet[], |
| bool report_buttons) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct input_dev *dev, *dev2 = NULL; |
| |
| /* Figure out which device to use to report the bare packet */ |
| if (priv->proto_version == ALPS_PROTO_V2 && |
| (priv->flags & ALPS_DUALPOINT)) { |
| /* On V2 devices the DualPoint Stick reports bare packets */ |
| dev = priv->dev2; |
| dev2 = psmouse->dev; |
| } else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) { |
| /* Register dev3 mouse if we received PS/2 packet first time */ |
| if (!IS_ERR(priv->dev3)) |
| psmouse_queue_work(psmouse, &priv->dev3_register_work, |
| 0); |
| return; |
| } else { |
| dev = priv->dev3; |
| } |
| |
| if (report_buttons) |
| alps_report_buttons(dev, dev2, |
| packet[0] & 1, packet[0] & 2, packet[0] & 4); |
| |
| psmouse_report_standard_motion(dev, packet); |
| |
| input_sync(dev); |
| } |
| |
| static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| |
| if (psmouse->pktcnt < 6) |
| return PSMOUSE_GOOD_DATA; |
| |
| if (psmouse->pktcnt == 6) { |
| /* |
| * Start a timer to flush the packet if it ends up last |
| * 6-byte packet in the stream. Timer needs to fire |
| * psmouse core times out itself. 20 ms should be enough |
| * to decide if we are getting more data or not. |
| */ |
| mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| del_timer(&priv->timer); |
| |
| if (psmouse->packet[6] & 0x80) { |
| |
| /* |
| * Highest bit is set - that means we either had |
| * complete ALPS packet and this is start of the |
| * next packet or we got garbage. |
| */ |
| |
| if (((psmouse->packet[3] | |
| psmouse->packet[4] | |
| psmouse->packet[5]) & 0x80) || |
| (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { |
| psmouse_dbg(psmouse, |
| "refusing packet %4ph (suspected interleaved ps/2)\n", |
| psmouse->packet + 3); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| priv->process_packet(psmouse); |
| |
| /* Continue with the next packet */ |
| psmouse->packet[0] = psmouse->packet[6]; |
| psmouse->pktcnt = 1; |
| |
| } else { |
| |
| /* |
| * High bit is 0 - that means that we indeed got a PS/2 |
| * packet in the middle of ALPS packet. |
| * |
| * There is also possibility that we got 6-byte ALPS |
| * packet followed by 3-byte packet from trackpoint. We |
| * can not distinguish between these 2 scenarios but |
| * because the latter is unlikely to happen in course of |
| * normal operation (user would need to press all |
| * buttons on the pad and start moving trackpoint |
| * without touching the pad surface) we assume former. |
| * Even if we are wrong the wost thing that would happen |
| * the cursor would jump but we should not get protocol |
| * de-synchronization. |
| */ |
| |
| alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], |
| false); |
| |
| /* |
| * Continue with the standard ALPS protocol handling, |
| * but make sure we won't process it as an interleaved |
| * packet again, which may happen if all buttons are |
| * pressed. To avoid this let's reset the 4th bit which |
| * is normally 1. |
| */ |
| psmouse->packet[3] = psmouse->packet[6] & 0xf7; |
| psmouse->pktcnt = 4; |
| } |
| |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| static void alps_flush_packet(struct timer_list *t) |
| { |
| struct alps_data *priv = from_timer(priv, t, timer); |
| struct psmouse *psmouse = priv->psmouse; |
| |
| serio_pause_rx(psmouse->ps2dev.serio); |
| |
| if (psmouse->pktcnt == psmouse->pktsize) { |
| |
| /* |
| * We did not any more data in reasonable amount of time. |
| * Validate the last 3 bytes and process as a standard |
| * ALPS packet. |
| */ |
| if ((psmouse->packet[3] | |
| psmouse->packet[4] | |
| psmouse->packet[5]) & 0x80) { |
| psmouse_dbg(psmouse, |
| "refusing packet %3ph (suspected interleaved ps/2)\n", |
| psmouse->packet + 3); |
| } else { |
| priv->process_packet(psmouse); |
| } |
| psmouse->pktcnt = 0; |
| } |
| |
| serio_continue_rx(psmouse->ps2dev.serio); |
| } |
| |
| static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| |
| /* |
| * Check if we are dealing with a bare PS/2 packet, presumably from |
| * a device connected to the external PS/2 port. Because bare PS/2 |
| * protocol does not have enough constant bits to self-synchronize |
| * properly we only do this if the device is fully synchronized. |
| * Can not distinguish V8's first byte from PS/2 packet's |
| */ |
| if (priv->proto_version != ALPS_PROTO_V8 && |
| !psmouse->out_of_sync_cnt && |
| (psmouse->packet[0] & 0xc8) == 0x08) { |
| |
| if (psmouse->pktcnt == 3) { |
| alps_report_bare_ps2_packet(psmouse, psmouse->packet, |
| true); |
| return PSMOUSE_FULL_PACKET; |
| } |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ |
| |
| if ((priv->flags & ALPS_PS2_INTERLEAVED) && |
| psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { |
| return alps_handle_interleaved_ps2(psmouse); |
| } |
| |
| if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { |
| psmouse_dbg(psmouse, |
| "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", |
| psmouse->packet[0], priv->mask0, priv->byte0); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| /* Bytes 2 - pktsize should have 0 in the highest bit */ |
| if (priv->proto_version < ALPS_PROTO_V5 && |
| psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && |
| (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { |
| psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
| psmouse->pktcnt - 1, |
| psmouse->packet[psmouse->pktcnt - 1]); |
| |
| if (priv->proto_version == ALPS_PROTO_V3_RUSHMORE && |
| psmouse->pktcnt == psmouse->pktsize) { |
| /* |
| * Some Dell boxes, such as Latitude E6440 or E7440 |
| * with closed lid, quite often smash last byte of |
| * otherwise valid packet with 0xff. Given that the |
| * next packet is very likely to be valid let's |
| * report PSMOUSE_FULL_PACKET but not process data, |
| * rather than reporting PSMOUSE_BAD_DATA and |
| * filling the logs. |
| */ |
| return PSMOUSE_FULL_PACKET; |
| } |
| |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| if ((priv->proto_version == ALPS_PROTO_V7 && |
| !alps_is_valid_package_v7(psmouse)) || |
| (priv->proto_version == ALPS_PROTO_V8 && |
| !alps_is_valid_package_ss4_v2(psmouse))) { |
| psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
| psmouse->pktcnt - 1, |
| psmouse->packet[psmouse->pktcnt - 1]); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| if (psmouse->pktcnt == psmouse->pktsize) { |
| priv->process_packet(psmouse); |
| return PSMOUSE_FULL_PACKET; |
| } |
| |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| struct alps_data *priv = psmouse->private; |
| int command; |
| unsigned char *param; |
| unsigned char dummy[4]; |
| |
| BUG_ON(nibble > 0xf); |
| |
| command = priv->nibble_commands[nibble].command; |
| param = (command & 0x0f00) ? |
| dummy : (unsigned char *)&priv->nibble_commands[nibble].data; |
| |
| if (ps2_command(ps2dev, param, command)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| struct alps_data *priv = psmouse->private; |
| int i, nibble; |
| |
| if (ps2_command(ps2dev, NULL, priv->addr_command)) |
| return -1; |
| |
| for (i = 12; i >= 0; i -= 4) { |
| nibble = (addr >> i) & 0xf; |
| if (alps_command_mode_send_nibble(psmouse, nibble)) |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| unsigned char param[4]; |
| |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| |
| /* |
| * The address being read is returned in the first two bytes |
| * of the result. Check that this address matches the expected |
| * address. |
| */ |
| if (addr != ((param[0] << 8) | param[1])) |
| return -1; |
| |
| return param[2]; |
| } |
| |
| static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) |
| { |
| if (alps_command_mode_set_addr(psmouse, addr)) |
| return -1; |
| return __alps_command_mode_read_reg(psmouse, addr); |
| } |
| |
| static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) |
| { |
| if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) |
| return -1; |
| if (alps_command_mode_send_nibble(psmouse, value & 0xf)) |
| return -1; |
| return 0; |
| } |
| |
| static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, |
| u8 value) |
| { |
| if (alps_command_mode_set_addr(psmouse, addr)) |
| return -1; |
| return __alps_command_mode_write_reg(psmouse, value); |
| } |
| |
| static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, |
| int repeated_command, unsigned char *param) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| param[0] = 0; |
| if (init_command && ps2_command(ps2dev, param, init_command)) |
| return -EIO; |
| |
| if (ps2_command(ps2dev, NULL, repeated_command) || |
| ps2_command(ps2dev, NULL, repeated_command) || |
| ps2_command(ps2dev, NULL, repeated_command)) |
| return -EIO; |
| |
| param[0] = param[1] = param[2] = 0xff; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return -EIO; |
| |
| psmouse_dbg(psmouse, "%2.2X report: %3ph\n", |
| repeated_command, param); |
| return 0; |
| } |
| |
| static bool alps_check_valid_firmware_id(unsigned char id[]) |
| { |
| if (id[0] == 0x73) |
| return true; |
| |
| if (id[0] == 0x88 && |
| (id[1] == 0x07 || |
| id[1] == 0x08 || |
| (id[1] & 0xf0) == 0xb0 || |
| (id[1] & 0xf0) == 0xc0)) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static int alps_enter_command_mode(struct psmouse *psmouse) |
| { |
| unsigned char param[4]; |
| |
| if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { |
| psmouse_err(psmouse, "failed to enter command mode\n"); |
| return -1; |
| } |
| |
| if (!alps_check_valid_firmware_id(param)) { |
| psmouse_dbg(psmouse, |
| "unknown response while entering command mode\n"); |
| return -1; |
| } |
| return 0; |
| } |
| |
| static inline int alps_exit_command_mode(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) |
| return -1; |
| return 0; |
| } |
| |
| /* |
| * For DualPoint devices select the device that should respond to |
| * subsequent commands. It looks like glidepad is behind stickpointer, |
| * I'd thought it would be other way around... |
| */ |
| static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; |
| |
| if (ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) |
| return -1; |
| |
| /* we may get 3 more bytes, just ignore them */ |
| ps2_drain(ps2dev, 3, 100); |
| |
| return 0; |
| } |
| |
| static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| /* Try ALPS magic knock - 4 disable before enable */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) |
| return -1; |
| |
| /* |
| * Switch mouse to poll (remote) mode so motion data will not |
| * get in our way |
| */ |
| return ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL); |
| } |
| |
| static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) |
| { |
| int i, nibble; |
| |
| /* |
| * b0-b11 are valid bits, send sequence is inverse. |
| * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 |
| */ |
| for (i = 0; i <= 8; i += 4) { |
| nibble = (word >> i) & 0xf; |
| if (alps_command_mode_send_nibble(psmouse, nibble)) |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int alps_monitor_mode_write_reg(struct psmouse *psmouse, |
| u16 addr, u16 value) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| /* 0x0A0 is the command to write the word */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || |
| alps_monitor_mode_send_word(psmouse, 0x0A0) || |
| alps_monitor_mode_send_word(psmouse, addr) || |
| alps_monitor_mode_send_word(psmouse, value) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_monitor_mode(struct psmouse *psmouse, bool enable) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| if (enable) { |
| /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| } else { |
| /* EC to exit monitor mode */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int alps_absolute_mode_v6(struct psmouse *psmouse) |
| { |
| u16 reg_val = 0x181; |
| int ret = -1; |
| |
| /* enter monitor mode, to write the register */ |
| if (alps_monitor_mode(psmouse, true)) |
| return -1; |
| |
| ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); |
| |
| if (alps_monitor_mode(psmouse, false)) |
| ret = -1; |
| |
| return ret; |
| } |
| |
| static int alps_get_status(struct psmouse *psmouse, char *param) |
| { |
| /* Get status: 0xF5 0xF5 0xF5 0xE9 */ |
| if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * Turn touchpad tapping on or off. The sequences are: |
| * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, |
| * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. |
| * My guess that 0xE9 (GetInfo) is here as a sync point. |
| * For models that also have stickpointer (DualPoints) its tapping |
| * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but |
| * we don't fiddle with it. |
| */ |
| static int alps_tap_mode(struct psmouse *psmouse, int enable) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; |
| unsigned char tap_arg = enable ? 0x0A : 0x00; |
| unsigned char param[4]; |
| |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, &tap_arg, cmd)) |
| return -1; |
| |
| if (alps_get_status(psmouse, param)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * alps_poll() - poll the touchpad for current motion packet. |
| * Used in resync. |
| */ |
| static int alps_poll(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char buf[sizeof(psmouse->packet)]; |
| bool poll_failed; |
| |
| if (priv->flags & ALPS_PASS) |
| alps_passthrough_mode_v2(psmouse, true); |
| |
| poll_failed = ps2_command(&psmouse->ps2dev, buf, |
| PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; |
| |
| if (priv->flags & ALPS_PASS) |
| alps_passthrough_mode_v2(psmouse, false); |
| |
| if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) |
| return -1; |
| |
| if ((psmouse->badbyte & 0xc8) == 0x08) { |
| /* |
| * Poll the track stick ... |
| */ |
| if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) |
| return -1; |
| } |
| |
| memcpy(psmouse->packet, buf, sizeof(buf)); |
| return 0; |
| } |
| |
| static int alps_hw_init_v1_v2(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| |
| if ((priv->flags & ALPS_PASS) && |
| alps_passthrough_mode_v2(psmouse, true)) { |
| return -1; |
| } |
| |
| if (alps_tap_mode(psmouse, true)) { |
| psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); |
| return -1; |
| } |
| |
| if (alps_absolute_mode_v1_v2(psmouse)) { |
| psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
| return -1; |
| } |
| |
| if ((priv->flags & ALPS_PASS) && |
| alps_passthrough_mode_v2(psmouse, false)) { |
| return -1; |
| } |
| |
| /* ALPS needs stream mode, otherwise it won't report any data */ |
| if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { |
| psmouse_err(psmouse, "Failed to enable stream mode\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* Must be in passthrough mode when calling this function */ |
| static int alps_trackstick_enter_extended_mode_v3_v6(struct psmouse *psmouse) |
| { |
| unsigned char param[2] = {0xC8, 0x14}; |
| |
| if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || |
| ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_hw_init_v6(struct psmouse *psmouse) |
| { |
| int ret; |
| |
| /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ |
| if (alps_passthrough_mode_v2(psmouse, true)) |
| return -1; |
| |
| ret = alps_trackstick_enter_extended_mode_v3_v6(psmouse); |
| |
| if (alps_passthrough_mode_v2(psmouse, false)) |
| return -1; |
| |
| if (ret) |
| return ret; |
| |
| if (alps_absolute_mode_v6(psmouse)) { |
| psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Enable or disable passthrough mode to the trackstick. |
| */ |
| static int alps_passthrough_mode_v3(struct psmouse *psmouse, |
| int reg_base, bool enable) |
| { |
| int reg_val, ret = -1; |
| |
| if (alps_enter_command_mode(psmouse)) |
| return -1; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); |
| if (reg_val == -1) |
| goto error; |
| |
| if (enable) |
| reg_val |= 0x01; |
| else |
| reg_val &= ~0x01; |
| |
| ret = __alps_command_mode_write_reg(psmouse, reg_val); |
| |
| error: |
| if (alps_exit_command_mode(psmouse)) |
| ret = -1; |
| return ret; |
| } |
| |
| /* Must be in command mode when calling this function */ |
| static int alps_absolute_mode_v3(struct psmouse *psmouse) |
| { |
| int reg_val; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0x0004); |
| if (reg_val == -1) |
| return -1; |
| |
| reg_val |= 0x06; |
| if (__alps_command_mode_write_reg(psmouse, reg_val)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base) |
| { |
| int ret = -EIO, reg_val; |
| |
| if (alps_enter_command_mode(psmouse)) |
| goto error; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); |
| if (reg_val == -1) |
| goto error; |
| |
| /* bit 7: trackstick is present */ |
| ret = reg_val & 0x80 ? 0 : -ENODEV; |
| |
| error: |
| alps_exit_command_mode(psmouse); |
| return ret; |
| } |
| |
| static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) |
| { |
| int ret = 0; |
| int reg_val; |
| unsigned char param[4]; |
| |
| /* |
| * We need to configure trackstick to report data for touchpad in |
| * extended format. And also we need to tell touchpad to expect data |
| * from trackstick in extended format. Without this configuration |
| * trackstick packets sent from touchpad are in basic format which is |
| * different from what we expect. |
| */ |
| |
| if (alps_passthrough_mode_v3(psmouse, reg_base, true)) |
| return -EIO; |
| |
| /* |
| * E7 report for the trackstick |
| * |
| * There have been reports of failures to seem to trace back |
| * to the above trackstick check failing. When these occur |
| * this E7 report fails, so when that happens we continue |
| * with the assumption that there isn't a trackstick after |
| * all. |
| */ |
| if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { |
| psmouse_warn(psmouse, "Failed to initialize trackstick (E7 report failed)\n"); |
| ret = -ENODEV; |
| } else { |
| psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); |
| if (alps_trackstick_enter_extended_mode_v3_v6(psmouse)) { |
| psmouse_err(psmouse, "Failed to enter into trackstick extended mode\n"); |
| ret = -EIO; |
| } |
| } |
| |
| if (alps_passthrough_mode_v3(psmouse, reg_base, false)) |
| return -EIO; |
| |
| if (ret) |
| return ret; |
| |
| if (alps_enter_command_mode(psmouse)) |
| return -EIO; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); |
| if (reg_val == -1) { |
| ret = -EIO; |
| } else { |
| /* |
| * Tell touchpad that trackstick is now in extended mode. |
| * If bit 1 isn't set the packet format is different. |
| */ |
| reg_val |= BIT(1); |
| if (__alps_command_mode_write_reg(psmouse, reg_val)) |
| ret = -EIO; |
| } |
| |
| if (alps_exit_command_mode(psmouse)) |
| return -EIO; |
| |
| return ret; |
| } |
| |
| static int alps_hw_init_v3(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int reg_val; |
| unsigned char param[4]; |
| |
| if ((priv->flags & ALPS_DUALPOINT) && |
| alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) |
| goto error; |
| |
| if (alps_enter_command_mode(psmouse) || |
| alps_absolute_mode_v3(psmouse)) { |
| psmouse_err(psmouse, "Failed to enter absolute mode\n"); |
| goto error; |
| } |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0x0006); |
| if (reg_val == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) |
| goto error; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0x0007); |
| if (reg_val == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) |
| goto error; |
| |
| if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, 0x04)) |
| goto error; |
| |
| if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) |
| goto error; |
| if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) |
| goto error; |
| if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) |
| goto error; |
| |
| alps_exit_command_mode(psmouse); |
| |
| /* Set rate and enable data reporting */ |
| param[0] = 0x64; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { |
| psmouse_err(psmouse, "Failed to enable data reporting\n"); |
| return -1; |
| } |
| |
| return 0; |
| |
| error: |
| /* |
| * Leaving the touchpad in command mode will essentially render |
| * it unusable until the machine reboots, so exit it here just |
| * to be safe |
| */ |
| alps_exit_command_mode(psmouse); |
| return -1; |
| } |
| |
| static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) |
| { |
| int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; |
| struct alps_data *priv = psmouse->private; |
| |
| reg = alps_command_mode_read_reg(psmouse, reg_pitch); |
| if (reg < 0) |
| return reg; |
| |
| x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ |
| x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ |
| |
| y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ |
| y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ |
| |
| reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); |
| if (reg < 0) |
| return reg; |
| |
| x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ |
| x_electrode = 17 + x_electrode; |
| |
| y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ |
| y_electrode = 13 + y_electrode; |
| |
| x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ |
| y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ |
| |
| priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ |
| priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ |
| |
| psmouse_dbg(psmouse, |
| "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", |
| x_pitch, y_pitch, x_electrode, y_electrode, |
| x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); |
| |
| return 0; |
| } |
| |
| static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int reg_val, ret = -1; |
| |
| if (priv->flags & ALPS_DUALPOINT) { |
| reg_val = alps_setup_trackstick_v3(psmouse, |
| ALPS_REG_BASE_RUSHMORE); |
| if (reg_val == -EIO) |
| goto error; |
| } |
| |
| if (alps_enter_command_mode(psmouse) || |
| alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || |
| alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) |
| goto error; |
| |
| if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) |
| goto error; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); |
| if (reg_val == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) |
| goto error; |
| |
| /* enter absolute mode */ |
| reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); |
| if (reg_val == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) |
| goto error; |
| |
| alps_exit_command_mode(psmouse); |
| return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); |
| |
| error: |
| alps_exit_command_mode(psmouse); |
| return ret; |
| } |
| |
| /* Must be in command mode when calling this function */ |
| static int alps_absolute_mode_v4(struct psmouse *psmouse) |
| { |
| int reg_val; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0x0004); |
| if (reg_val == -1) |
| return -1; |
| |
| reg_val |= 0x02; |
| if (__alps_command_mode_write_reg(psmouse, reg_val)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_hw_init_v4(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| unsigned char param[4]; |
| |
| if (alps_enter_command_mode(psmouse)) |
| goto error; |
| |
| if (alps_absolute_mode_v4(psmouse)) { |
| psmouse_err(psmouse, "Failed to enter absolute mode\n"); |
| goto error; |
| } |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) |
| goto error; |
| |
| alps_exit_command_mode(psmouse); |
| |
| /* |
| * This sequence changes the output from a 9-byte to an |
| * 8-byte format. All the same data seems to be present, |
| * just in a more compact format. |
| */ |
| param[0] = 0xc8; |
| param[1] = 0x64; |
| param[2] = 0x50; |
| if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) |
| return -1; |
| |
| /* Set rate and enable data reporting */ |
| param[0] = 0x64; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { |
| psmouse_err(psmouse, "Failed to enable data reporting\n"); |
| return -1; |
| } |
| |
| return 0; |
| |
| error: |
| /* |
| * Leaving the touchpad in command mode will essentially render |
| * it unusable until the machine reboots, so exit it here just |
| * to be safe |
| */ |
| alps_exit_command_mode(psmouse); |
| return -1; |
| } |
| |
| static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse, |
| unsigned char index, unsigned char otp[]) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| switch (index) { |
| case 0: |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || |
| ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| |
| break; |
| |
| case 1: |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || |
| ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int alps_update_device_area_ss4_v2(unsigned char otp[][4], |
| struct alps_data *priv) |
| { |
| int num_x_electrode; |
| int num_y_electrode; |
| int x_pitch, y_pitch, x_phys, y_phys; |
| |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| num_x_electrode = |
| SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F); |
| num_y_electrode = |
| SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F); |
| |
| priv->x_max = |
| (num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE; |
| priv->y_max = |
| (num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE; |
| |
| x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM; |
| y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM; |
| |
| } else { |
| num_x_electrode = |
| SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F); |
| num_y_electrode = |
| SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F); |
| |
| priv->x_max = |
| (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE; |
| priv->y_max = |
| (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE; |
| |
| x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM; |
| y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM; |
| } |
| |
| x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */ |
| y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */ |
| |
| priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ |
| priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ |
| |
| return 0; |
| } |
| |
| static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], |
| struct alps_data *priv) |
| { |
| unsigned char is_btnless; |
| |
| if (IS_SS4PLUS_DEV(priv->dev_id)) |
| is_btnless = (otp[1][0] >> 1) & 0x01; |
| else |
| is_btnless = (otp[1][1] >> 3) & 0x01; |
| |
| if (is_btnless) |
| priv->flags |= ALPS_BUTTONPAD; |
| |
| return 0; |
| } |
| |
| static int alps_update_dual_info_ss4_v2(unsigned char otp[][4], |
| struct alps_data *priv, |
| struct psmouse *psmouse) |
| { |
| bool is_dual = false; |
| int reg_val = 0; |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| if (IS_SS4PLUS_DEV(priv->dev_id)) { |
| is_dual = (otp[0][0] >> 4) & 0x01; |
| |
| if (!is_dual) { |
| /* For support TrackStick of Thinkpad L/E series */ |
| if (alps_exit_command_mode(psmouse) == 0 && |
| alps_enter_command_mode(psmouse) == 0) { |
| reg_val = alps_command_mode_read_reg(psmouse, |
| 0xD7); |
| } |
| alps_exit_command_mode(psmouse); |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); |
| |
| if (reg_val == 0x0C || reg_val == 0x1D) |
| is_dual = true; |
| } |
| } |
| |
| if (is_dual) |
| priv->flags |= ALPS_DUALPOINT | |
| ALPS_DUALPOINT_WITH_PRESSURE; |
| |
| return 0; |
| } |
| |
| static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, |
| struct alps_data *priv) |
| { |
| unsigned char otp[2][4]; |
| |
| memset(otp, 0, sizeof(otp)); |
| |
| if (alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]) || |
| alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0])) |
| return -1; |
| |
| alps_update_device_area_ss4_v2(otp, priv); |
| |
| alps_update_btn_info_ss4_v2(otp, priv); |
| |
| alps_update_dual_info_ss4_v2(otp, priv, psmouse); |
| |
| return 0; |
| } |
| |
| static int alps_dolphin_get_device_area(struct psmouse *psmouse, |
| struct alps_data *priv) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| unsigned char param[4] = {0}; |
| int num_x_electrode, num_y_electrode; |
| |
| if (alps_enter_command_mode(psmouse)) |
| return -1; |
| |
| param[0] = 0x0a; |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || |
| ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) |
| return -1; |
| |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| |
| /* |
| * Dolphin's sensor line number is not fixed. It can be calculated |
| * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. |
| * Further more, we can get device's x_max and y_max by multiplying |
| * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. |
| * |
| * e.g. When we get register's sensor_x = 11 & sensor_y = 8, |
| * real sensor line number X = 11 + 8 = 19, and |
| * real sensor line number Y = 8 + 1 = 9. |
| * So, x_max = (19 - 1) * 64 = 1152, and |
| * y_max = (9 - 1) * 64 = 512. |
| */ |
| num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); |
| num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); |
| priv->x_bits = num_x_electrode; |
| priv->y_bits = num_y_electrode; |
| priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; |
| priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; |
| |
| if (alps_exit_command_mode(psmouse)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| unsigned char param[2]; |
| |
| /* This is dolphin "v1" as empirically defined by florin9doi */ |
| param[0] = 0x64; |
| param[1] = 0x28; |
| |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || |
| ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int alps_hw_init_v7(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int reg_val, ret = -1; |
| |
| if (alps_enter_command_mode(psmouse) || |
| alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) |
| goto error; |
| |
| if (alps_get_v3_v7_resolution(psmouse, 0xc397)) |
| goto error; |
| |
| if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) |
| goto error; |
| |
| reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); |
| if (reg_val == -1) |
| goto error; |
| if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) |
| goto error; |
| |
| alps_exit_command_mode(psmouse); |
| return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); |
| |
| error: |
| alps_exit_command_mode(psmouse); |
| return ret; |
| } |
| |
| static int alps_hw_init_ss4_v2(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| char param[2] = {0x64, 0x28}; |
| int ret = -1; |
| |
| /* enter absolute mode */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || |
| ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || |
| ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) { |
| goto error; |
| } |
| |
| /* T.B.D. Decread noise packet number, delete in the future */ |
| if (alps_exit_command_mode(psmouse) || |
| alps_enter_command_mode(psmouse) || |
| alps_command_mode_write_reg(psmouse, 0x001D, 0x20)) { |
| goto error; |
| } |
| alps_exit_command_mode(psmouse); |
| |
| return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); |
| |
| error: |
| alps_exit_command_mode(psmouse); |
| return ret; |
| } |
| |
| static int alps_set_protocol(struct psmouse *psmouse, |
| struct alps_data *priv, |
| const struct alps_protocol_info *protocol) |
| { |
| psmouse->private = priv; |
| |
| timer_setup(&priv->timer, alps_flush_packet, 0); |
| |
| priv->proto_version = protocol->version; |
| priv->byte0 = protocol->byte0; |
| priv->mask0 = protocol->mask0; |
| priv->flags = protocol->flags; |
| |
| priv->x_max = 2000; |
| priv->y_max = 1400; |
| priv->x_bits = 15; |
| priv->y_bits = 11; |
| |
| switch (priv->proto_version) { |
| case ALPS_PROTO_V1: |
| case ALPS_PROTO_V2: |
| priv->hw_init = alps_hw_init_v1_v2; |
| priv->process_packet = alps_process_packet_v1_v2; |
| priv->set_abs_params = alps_set_abs_params_st; |
| priv->x_max = 1023; |
| priv->y_max = 767; |
| if (dmi_check_system(alps_dmi_has_separate_stick_buttons)) |
| priv->flags |= ALPS_STICK_BITS; |
| break; |
| |
| case ALPS_PROTO_V3: |
| priv->hw_init = alps_hw_init_v3; |
| priv->process_packet = alps_process_packet_v3; |
| priv->set_abs_params = alps_set_abs_params_semi_mt; |
| priv->decode_fields = alps_decode_pinnacle; |
| priv->nibble_commands = alps_v3_nibble_commands; |
| priv->addr_command = PSMOUSE_CMD_RESET_WRAP; |
| |
| if (alps_probe_trackstick_v3_v7(psmouse, |
| ALPS_REG_BASE_PINNACLE) < 0) |
| priv->flags &= ~ALPS_DUALPOINT; |
| |
| break; |
| |
| case ALPS_PROTO_V3_RUSHMORE: |
| priv->hw_init = alps_hw_init_rushmore_v3; |
| priv->process_packet = alps_process_packet_v3; |
| priv->set_abs_params = alps_set_abs_params_semi_mt; |
| priv->decode_fields = alps_decode_rushmore; |
| priv->nibble_commands = alps_v3_nibble_commands; |
| priv->addr_command = PSMOUSE_CMD_RESET_WRAP; |
| priv->x_bits = 16; |
| priv->y_bits = 12; |
| |
| if (alps_probe_trackstick_v3_v7(psmouse, |
| ALPS_REG_BASE_RUSHMORE) < 0) |
| priv->flags &= ~ALPS_DUALPOINT; |
| |
| break; |
| |
| case ALPS_PROTO_V4: |
| priv->hw_init = alps_hw_init_v4; |
| priv->process_packet = alps_process_packet_v4; |
| priv->set_abs_params = alps_set_abs_params_semi_mt; |
| priv->nibble_commands = alps_v4_nibble_commands; |
| priv->addr_command = PSMOUSE_CMD_DISABLE; |
| break; |
| |
| case ALP
|