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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/input/mouse/alps.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/mouse/alps.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/mouse/alps.c1649
1 files changed, 0 insertions, 1649 deletions
diff --git a/ANDROID_3.4.5/drivers/input/mouse/alps.c b/ANDROID_3.4.5/drivers/input/mouse/alps.c
deleted file mode 100644
index 4c6a72d3..00000000
--- a/ANDROID_3.4.5/drivers/input/mouse/alps.c
+++ /dev/null
@@ -1,1649 +0,0 @@
-/*
- * 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 "psmouse.h"
-#include "alps.h"
-
-/*
- * Definitions for ALPS version 3 and 4 command mode protocol
- */
-#define ALPS_V3_X_MAX 2000
-#define ALPS_V3_Y_MAX 1400
-
-#define ALPS_BITMAP_X_BITS 15
-#define ALPS_BITMAP_Y_BITS 11
-
-#define ALPS_CMD_NIBBLE_10 0x01f2
-
-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 */
-};
-
-
-#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 */
-
-static const struct alps_model_info alps_model_data[] = {
- { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
- { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */
- { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */
- { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
- { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
- { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
- { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
- { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
- { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
- { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
- { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
- { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
- { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
- /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
- { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
- ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
- { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
- { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
- ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
- { { 0x73, 0x02, 0x64 }, 0x9b, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
- { { 0x73, 0x02, 0x64 }, 0x9d, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
- { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 },
-};
-
-/*
- * 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.
- */
-
-/* Packet formats are described in Documentation/input/alps.txt */
-
-static bool alps_is_valid_first_byte(const struct alps_model_info *model,
- unsigned char data)
-{
- return (data & model->mask0) == model->byte0;
-}
-
-static void alps_report_buttons(struct psmouse *psmouse,
- 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 = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1;
- input_report_key(dev, BTN_LEFT, left);
-
- dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1;
- input_report_key(dev, BTN_RIGHT, right);
-
- dev = 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.
- */
- input_sync(dev2);
-}
-
-static void alps_process_packet_v1_v2(struct psmouse *psmouse)
-{
- struct alps_data *priv = psmouse->private;
- const struct alps_model_info *model = priv->i;
- 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 (model->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 (model->flags & ALPS_FW_BK_1) {
- back = packet[0] & 0x10;
- forward = packet[2] & 4;
- }
-
- if (model->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 ((model->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(psmouse, dev2, dev, left, right, middle);
-
- input_sync(dev2);
- return;
- }
-
- alps_report_buttons(psmouse, 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 (model->flags & ALPS_WHEEL)
- input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
-
- if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
- input_report_key(dev, BTN_FORWARD, forward);
- input_report_key(dev, BTN_BACK, back);
- }
-
- if (model->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);
-}
-
-/*
- * Process bitmap data from v3 and v4 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 x1, y1, x2, and y2 when the return value
- * is greater than 0.
- */
-static int alps_process_bitmap(unsigned int x_map, unsigned int y_map,
- int *x1, int *y1, int *x2, int *y2)
-{
- struct alps_bitmap_point {
- int start_bit;
- int num_bits;
- };
-
- int fingers_x = 0, fingers_y = 0, fingers;
- int i, bit, prev_bit;
- struct alps_bitmap_point x_low = {0,}, x_high = {0,};
- struct alps_bitmap_point y_low = {0,}, y_high = {0,};
- struct alps_bitmap_point *point;
-
- if (!x_map || !y_map)
- return 0;
-
- *x1 = *y1 = *x2 = *y2 = 0;
-
- prev_bit = 0;
- point = &x_low;
- for (i = 0; x_map != 0; i++, x_map >>= 1) {
- bit = x_map & 1;
- if (bit) {
- if (!prev_bit) {
- point->start_bit = i;
- fingers_x++;
- }
- point->num_bits++;
- } else {
- if (prev_bit)
- point = &x_high;
- else
- point->num_bits = 0;
- }
- prev_bit = bit;
- }
-
- /*
- * y bitmap is reversed for what we need (lower positions are in
- * higher bits), so we process from the top end.
- */
- y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - ALPS_BITMAP_Y_BITS);
- prev_bit = 0;
- point = &y_low;
- for (i = 0; y_map != 0; i++, y_map <<= 1) {
- bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 1));
- if (bit) {
- if (!prev_bit) {
- point->start_bit = i;
- fingers_y++;
- }
- point->num_bits++;
- } else {
- if (prev_bit)
- point = &y_high;
- else
- point->num_bits = 0;
- }
- prev_bit = bit;
- }
-
- /*
- * 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 total fingers is > 1 but either axis reports only a single
- * contact, we have overlapping or adjacent fingers. For the
- * purposes of creating a bounding box, divide the single contact
- * (roughly) equally between the two points.
- */
- if (fingers > 1) {
- if (fingers_x == 1) {
- i = x_low.num_bits / 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);
- } else if (fingers_y == 1) {
- i = y_low.num_bits / 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);
- }
- }
-
- *x1 = (ALPS_V3_X_MAX * (2 * x_low.start_bit + x_low.num_bits - 1)) /
- (2 * (ALPS_BITMAP_X_BITS - 1));
- *y1 = (ALPS_V3_Y_MAX * (2 * y_low.start_bit + y_low.num_bits - 1)) /
- (2 * (ALPS_BITMAP_Y_BITS - 1));
-
- if (fingers > 1) {
- *x2 = (ALPS_V3_X_MAX * (2 * x_high.start_bit + x_high.num_bits - 1)) /
- (2 * (ALPS_BITMAP_X_BITS - 1));
- *y2 = (ALPS_V3_Y_MAX * (2 * y_high.start_bit + y_high.num_bits - 1)) /
- (2 * (ALPS_BITMAP_Y_BITS - 1));
- }
-
- return fingers;
-}
-
-static void alps_set_slot(struct input_dev *dev, int slot, bool active,
- int x, int y)
-{
- input_mt_slot(dev, slot);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
- if (active) {
- input_report_abs(dev, ABS_MT_POSITION_X, x);
- input_report_abs(dev, ABS_MT_POSITION_Y, y);
- }
-}
-
-static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers,
- int x1, int y1, int x2, int y2)
-{
- alps_set_slot(dev, 0, num_fingers != 0, x1, y1);
- alps_set_slot(dev, 1, num_fingers == 2, x2, y2);
-}
-
-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;
-
- /* 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] & 0x7c) >> 2;
-
- /*
- * 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);
-
- /*
- * 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_process_touchpad_packet_v3(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;
- int left, right, middle;
- int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
- int fingers = 0, bmap_fingers;
- unsigned int x_bitmap, y_bitmap;
-
- /*
- * 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 (packet[0] & 0x40) {
- fingers = (packet[5] & 0x3) + 1;
- x_bitmap = ((packet[4] & 0x7e) << 8) |
- ((packet[1] & 0x7f) << 2) |
- ((packet[0] & 0x30) >> 4);
- y_bitmap = ((packet[3] & 0x70) << 4) |
- ((packet[2] & 0x7f) << 1) |
- (packet[4] & 0x01);
-
- bmap_fingers = alps_process_bitmap(x_bitmap, y_bitmap,
- &x1, &y1, &x2, &y2);
-
- /*
- * We shouldn't report more than one finger if
- * we don't have two coordinates.
- */
- if (fingers > 1 && bmap_fingers < 2)
- fingers = bmap_fingers;
-
- /* Now process position packet */
- packet = priv->multi_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 (packet[0] & 0x40)
- return;
-
- if (!priv->multi_packet && (packet[4] & 0x40)) {
- priv->multi_packet = 1;
- memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
- return;
- }
-
- priv->multi_packet = 0;
-
- left = packet[3] & 0x01;
- right = packet[3] & 0x02;
- middle = packet[3] & 0x04;
-
- x = ((packet[1] & 0x7f) << 4) | ((packet[4] & 0x30) >> 2) |
- ((packet[0] & 0x30) >> 4);
- y = ((packet[2] & 0x7f) << 4) | (packet[4] & 0x0f);
- z = packet[5] & 0x7f;
-
- /*
- * 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 (x && y && !z)
- return;
-
- /*
- * If we don't have MT data or the bitmaps were empty, we have
- * to rely on ST data.
- */
- if (!fingers) {
- x1 = x;
- y1 = y;
- fingers = z > 0 ? 1 : 0;
- }
-
- if (z >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
- else
- input_report_key(dev, BTN_TOUCH, 0);
-
- alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
-
- input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
- input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
- input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
- input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
-
- input_report_key(dev, BTN_LEFT, left);
- input_report_key(dev, BTN_RIGHT, right);
- input_report_key(dev, BTN_MIDDLE, middle);
-
- 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_sync(dev);
-
- if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
- left = packet[3] & 0x10;
- right = packet[3] & 0x20;
- middle = packet[3] & 0x40;
-
- input_report_key(dev2, BTN_LEFT, left);
- input_report_key(dev2, BTN_RIGHT, right);
- input_report_key(dev2, BTN_MIDDLE, 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(psmouse);
-}
-
-static void alps_process_packet_v4(struct psmouse *psmouse)
-{
- unsigned char *packet = psmouse->packet;
- struct input_dev *dev = psmouse->dev;
- int x, y, z;
- int left, right;
-
- left = packet[4] & 0x01;
- right = packet[4] & 0x02;
-
- x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
- ((packet[0] & 0x30) >> 4);
- y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
- z = packet[5] & 0x7f;
-
- if (z >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
- else
- 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);
- input_report_key(dev, BTN_LEFT, left);
- input_report_key(dev, BTN_RIGHT, right);
-
- input_sync(dev);
-}
-
-static void alps_process_packet(struct psmouse *psmouse)
-{
- struct alps_data *priv = psmouse->private;
- const struct alps_model_info *model = priv->i;
-
- switch (model->proto_version) {
- case ALPS_PROTO_V1:
- case ALPS_PROTO_V2:
- alps_process_packet_v1_v2(psmouse);
- break;
- case ALPS_PROTO_V3:
- alps_process_packet_v3(psmouse);
- break;
- case ALPS_PROTO_V4:
- alps_process_packet_v4(psmouse);
- break;
- }
-}
-
-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 *dev2 = priv->dev2;
-
- if (report_buttons)
- alps_report_buttons(psmouse, dev2, psmouse->dev,
- packet[0] & 1, packet[0] & 2, packet[0] & 4);
-
- input_report_rel(dev2, REL_X,
- packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
- input_report_rel(dev2, REL_Y,
- packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
-
- input_sync(dev2);
-}
-
-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->i, psmouse->packet[6]))) {
- psmouse_dbg(psmouse,
- "refusing packet %x %x %x %x (suspected interleaved ps/2)\n",
- psmouse->packet[3], psmouse->packet[4],
- psmouse->packet[5], psmouse->packet[6]);
- return PSMOUSE_BAD_DATA;
- }
-
- alps_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(unsigned long data)
-{
- struct psmouse *psmouse = (struct psmouse *)data;
-
- 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 %x %x %x (suspected interleaved ps/2)\n",
- psmouse->packet[3], psmouse->packet[4],
- psmouse->packet[5]);
- } else {
- alps_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;
- const struct alps_model_info *model = priv->i;
-
- if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
- 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 ((model->flags & ALPS_PS2_INTERLEAVED) &&
- psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
- return alps_handle_interleaved_ps2(psmouse);
- }
-
- if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
- psmouse_dbg(psmouse,
- "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
- psmouse->packet[0], model->mask0, model->byte0);
- return PSMOUSE_BAD_DATA;
- }
-
- /* Bytes 2 - pktsize should have 0 in the highest bit */
- if (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]);
- return PSMOUSE_BAD_DATA;
- }
-
- if (psmouse->pktcnt == psmouse->pktsize) {
- alps_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_enter_command_mode(struct psmouse *psmouse,
- unsigned char *resp)
-{
- unsigned char param[4];
- struct ps2dev *ps2dev = &psmouse->ps2dev;
-
- if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
- ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
- psmouse_err(psmouse, "failed to enter command mode\n");
- return -1;
- }
-
- if (param[0] != 0x88 && param[1] != 0x07) {
- psmouse_dbg(psmouse,
- "unknown response while entering command mode: %2.2x %2.2x %2.2x\n",
- param[0], param[1], param[2]);
- return -1;
- }
-
- if (resp)
- *resp = param[2];
- 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;
-}
-
-static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
-{
- struct ps2dev *ps2dev = &psmouse->ps2dev;
- static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
- unsigned char param[4];
- const struct alps_model_info *model = NULL;
- int i;
-
- /*
- * First try "E6 report".
- * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
- * The bits 0-2 of the first byte will be 1s if some buttons are
- * pressed.
- */
- param[0] = 0;
- if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
- return NULL;
-
- param[0] = param[1] = param[2] = 0xff;
- if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
- return NULL;
-
- psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x",
- param[0], param[1], param[2]);
-
- if ((param[0] & 0xf8) != 0 || param[1] != 0 ||
- (param[2] != 10 && param[2] != 100))
- return NULL;
-
- /*
- * Now try "E7 report". Allowed responses are in
- * alps_model_data[].signature
- */
- param[0] = 0;
- if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
- return NULL;
-
- param[0] = param[1] = param[2] = 0xff;
- if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
- return NULL;
-
- psmouse_dbg(psmouse, "E7 report: %2.2x %2.2x %2.2x",
- param[0], param[1], param[2]);
-
- if (version) {
- for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
- /* empty */;
- *version = (param[0] << 8) | (param[1] << 4) | i;
- }
-
- for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
- if (!memcmp(param, alps_model_data[i].signature,
- sizeof(alps_model_data[i].signature))) {
- model = alps_model_data + i;
- break;
- }
- }
-
- if (model && model->proto_version > ALPS_PROTO_V2) {
- /*
- * Need to check command mode response to identify
- * model
- */
- model = NULL;
- if (alps_enter_command_mode(psmouse, param)) {
- psmouse_warn(psmouse,
- "touchpad failed to enter command mode\n");
- } else {
- for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
- if (alps_model_data[i].proto_version > ALPS_PROTO_V2 &&
- alps_model_data[i].command_mode_resp == param[0]) {
- model = alps_model_data + i;
- break;
- }
- }
- alps_exit_command_mode(psmouse);
-
- if (!model)
- psmouse_dbg(psmouse,
- "Unknown command mode response %2.2x\n",
- param[0]);
- }
- }
-
- return model;
-}
-
-/*
- * 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(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
-}
-
-static int alps_get_status(struct psmouse *psmouse, char *param)
-{
- struct ps2dev *ps2dev = &psmouse->ps2dev;
-
- /* Get status: 0xF5 0xF5 0xF5 0xE9 */
- 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, param, PSMOUSE_CMD_GETINFO))
- return -1;
-
- psmouse_dbg(psmouse, "Status: %2.2x %2.2x %2.2x",
- param[0], param[1], param[2]);
-
- 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->i->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->i->flags & ALPS_PASS)
- alps_passthrough_mode_v2(psmouse, false);
-
- if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->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;
- const struct alps_model_info *model = priv->i;
-
- if ((model->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 ((model->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;
-}
-
-/*
- * Enable or disable passthrough mode to the trackstick. Must be in
- * command mode when calling this function.
- */
-static int alps_passthrough_mode_v3(struct psmouse *psmouse, bool enable)
-{
- int reg_val;
-
- reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
- if (reg_val == -1)
- return -1;
-
- if (enable)
- reg_val |= 0x01;
- else
- reg_val &= ~0x01;
-
- if (__alps_command_mode_write_reg(psmouse, reg_val))
- return -1;
-
- return 0;
-}
-
-/* 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_hw_init_v3(struct psmouse *psmouse)
-{
- struct alps_data *priv = psmouse->private;
- struct ps2dev *ps2dev = &psmouse->ps2dev;
- int reg_val;
- unsigned char param[4];
-
- priv->nibble_commands = alps_v3_nibble_commands;
- priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
-
- if (alps_enter_command_mode(psmouse, NULL))
- goto error;
-
- /* Check for trackstick */
- reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
- if (reg_val == -1)
- goto error;
- if (reg_val & 0x80) {
- if (alps_passthrough_mode_v3(psmouse, true))
- goto error;
- if (alps_exit_command_mode(psmouse))
- goto error;
-
- /*
- * 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.
- */
- param[0] = 0x64;
- if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
- ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
- psmouse_warn(psmouse, "trackstick E7 report failed\n");
- } else {
- psmouse_dbg(psmouse,
- "trackstick E7 report: %2.2x %2.2x %2.2x\n",
- param[0], param[1], param[2]);
-
- /*
- * Not sure what this does, but it is absolutely
- * essential. Without it, the touchpad does not
- * work at all and the trackstick just emits normal
- * PS/2 packets.
- */
- if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
- ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
- alps_command_mode_send_nibble(psmouse, 0x9) ||
- alps_command_mode_send_nibble(psmouse, 0x4)) {
- psmouse_err(psmouse,
- "Error sending magic E6 sequence\n");
- goto error_passthrough;
- }
- }
-
- if (alps_enter_command_mode(psmouse, NULL))
- goto error_passthrough;
- if (alps_passthrough_mode_v3(psmouse, false))
- goto error;
- }
-
- if (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;
-
- /*
- * This ensures the trackstick packets are in the format
- * supported by this driver. If bit 1 isn't set the packet
- * format is different.
- */
- if (alps_command_mode_write_reg(psmouse, 0x0008, 0x82))
- 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_passthrough:
- /* Something failed while in passthrough mode, so try to get out */
- if (!alps_enter_command_mode(psmouse, NULL))
- alps_passthrough_mode_v3(psmouse, false);
-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;
-}
-
-/* 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 alps_data *priv = psmouse->private;
- struct ps2dev *ps2dev = &psmouse->ps2dev;
- unsigned char param[4];
-
- priv->nibble_commands = alps_v4_nibble_commands;
- priv->addr_command = PSMOUSE_CMD_DISABLE;
-
- if (alps_enter_command_mode(psmouse, NULL))
- 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, &param[0], PSMOUSE_CMD_SETRATE) ||
- ps2_command(ps2dev, &param[1], PSMOUSE_CMD_SETRATE) ||
- ps2_command(ps2dev, &param[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_hw_init(struct psmouse *psmouse)
-{
- struct alps_data *priv = psmouse->private;
- const struct alps_model_info *model = priv->i;
- int ret = -1;
-
- switch (model->proto_version) {
- case ALPS_PROTO_V1:
- case ALPS_PROTO_V2:
- ret = alps_hw_init_v1_v2(psmouse);
- break;
- case ALPS_PROTO_V3:
- ret = alps_hw_init_v3(psmouse);
- break;
- case ALPS_PROTO_V4:
- ret = alps_hw_init_v4(psmouse);
- break;
- }
-
- return ret;
-}
-
-static int alps_reconnect(struct psmouse *psmouse)
-{
- const struct alps_model_info *model;
-
- psmouse_reset(psmouse);
-
- model = alps_get_model(psmouse, NULL);
- if (!model)
- return -1;
-
- return alps_hw_init(psmouse);
-}
-
-static void alps_disconnect(struct psmouse *psmouse)
-{
- struct alps_data *priv = psmouse->private;
-
- psmouse_reset(psmouse);
- del_timer_sync(&priv->timer);
- input_unregister_device(priv->dev2);
- kfree(priv);
-}
-
-int alps_init(struct psmouse *psmouse)
-{
- struct alps_data *priv;
- const struct alps_model_info *model;
- struct input_dev *dev1 = psmouse->dev, *dev2;
- int version;
-
- priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
- dev2 = input_allocate_device();
- if (!priv || !dev2)
- goto init_fail;
-
- priv->dev2 = dev2;
- setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse);
-
- psmouse->private = priv;
-
- psmouse_reset(psmouse);
-
- model = alps_get_model(psmouse, &version);
- if (!model)
- goto init_fail;
-
- priv->i = model;
-
- if (alps_hw_init(psmouse))
- goto init_fail;
-
- /*
- * Undo part of setup done for us by psmouse core since touchpad
- * is not a relative device.
- */
- __clear_bit(EV_REL, dev1->evbit);
- __clear_bit(REL_X, dev1->relbit);
- __clear_bit(REL_Y, dev1->relbit);
-
- /*
- * Now set up our capabilities.
- */
- dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
- dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
- dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
- dev1->keybit[BIT_WORD(BTN_LEFT)] |=
- BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
-
- dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
-
- switch (model->proto_version) {
- case ALPS_PROTO_V1:
- case ALPS_PROTO_V2:
- input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
- input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
- break;
- case ALPS_PROTO_V3:
- set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
- input_mt_init_slots(dev1, 2);
- input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, ALPS_V3_X_MAX, 0, 0);
- input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, ALPS_V3_Y_MAX, 0, 0);
-
- set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit);
- set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
- set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
- /* fall through */
- case ALPS_PROTO_V4:
- input_set_abs_params(dev1, ABS_X, 0, ALPS_V3_X_MAX, 0, 0);
- input_set_abs_params(dev1, ABS_Y, 0, ALPS_V3_Y_MAX, 0, 0);
- break;
- }
-
- input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
-
- if (model->flags & ALPS_WHEEL) {
- dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
- dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
- }
-
- if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
- dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
- dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
- }
-
- if (model->flags & ALPS_FOUR_BUTTONS) {
- dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
- dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
- dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
- dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
- } else {
- dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
- }
-
- snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
- dev2->phys = priv->phys;
- dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
- dev2->id.bustype = BUS_I8042;
- dev2->id.vendor = 0x0002;
- dev2->id.product = PSMOUSE_ALPS;
- dev2->id.version = 0x0000;
- dev2->dev.parent = &psmouse->ps2dev.serio->dev;
-
- dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
- dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
- dev2->keybit[BIT_WORD(BTN_LEFT)] =
- BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
-
- if (input_register_device(priv->dev2))
- goto init_fail;
-
- psmouse->protocol_handler = alps_process_byte;
- psmouse->poll = alps_poll;
- psmouse->disconnect = alps_disconnect;
- psmouse->reconnect = alps_reconnect;
- psmouse->pktsize = model->proto_version == ALPS_PROTO_V4 ? 8 : 6;
-
- /* We are having trouble resyncing ALPS touchpads so disable it for now */
- psmouse->resync_time = 0;
-
- return 0;
-
-init_fail:
- psmouse_reset(psmouse);
- input_free_device(dev2);
- kfree(priv);
- psmouse->private = NULL;
- return -1;
-}
-
-int alps_detect(struct psmouse *psmouse, bool set_properties)
-{
- int version;
- const struct alps_model_info *model;
-
- model = alps_get_model(psmouse, &version);
- if (!model)
- return -1;
-
- if (set_properties) {
- psmouse->vendor = "ALPS";
- psmouse->name = model->flags & ALPS_DUALPOINT ?
- "DualPoint TouchPad" : "GlidePoint";
- psmouse->model = version;
- }
- return 0;
-}
-