480 lines
14 KiB
C
480 lines
14 KiB
C
/*
|
|
* ALPS touchpad PS/2 mouse driver
|
|
*
|
|
* Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
|
|
* Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
|
|
* Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
|
|
* Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
|
|
*
|
|
* 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/input.h>
|
|
#include <linux/serio.h>
|
|
#include <linux/libps2.h>
|
|
|
|
#include "psmouse.h"
|
|
#include "alps.h"
|
|
|
|
#undef DEBUG
|
|
#ifdef DEBUG
|
|
#define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg)
|
|
#else
|
|
#define dbg(format, arg...) do {} while (0)
|
|
#endif
|
|
|
|
#define ALPS_DUALPOINT 0x01
|
|
#define ALPS_WHEEL 0x02
|
|
#define ALPS_FW_BK 0x04
|
|
#define ALPS_4BTN 0x08
|
|
#define ALPS_OLDPROTO 0x10
|
|
#define ALPS_PASS 0x20
|
|
|
|
static struct alps_model_info alps_model_data[] = {
|
|
{ { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
|
|
{ { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
|
|
{ { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
|
|
{ { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
|
|
{ { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
|
|
{ { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, 0 },
|
|
{ { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
|
|
{ { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK }, /* NEC Versa L320 */
|
|
{ { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
|
|
{ { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */
|
|
{ { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
|
|
{ { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
|
|
{ { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
|
|
{ { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
|
|
{ { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
|
|
};
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* ALPS abolute Mode - new format
|
|
*
|
|
* byte 0: 1 ? ? ? 1 ? ? ?
|
|
* byte 1: 0 x6 x5 x4 x3 x2 x1 x0
|
|
* byte 2: 0 x10 x9 x8 x7 ? fin ges
|
|
* byte 3: 0 y9 y8 y7 1 M R L
|
|
* byte 4: 0 y6 y5 y4 y3 y2 y1 y0
|
|
* byte 5: 0 z6 z5 z4 z3 z2 z1 z0
|
|
*
|
|
* ?'s can have different meanings on different models,
|
|
* such as wheel rotation, extra buttons, stick buttons
|
|
* on a dualpoint, etc.
|
|
*/
|
|
|
|
static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
|
|
{
|
|
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;
|
|
|
|
input_regs(dev, regs);
|
|
|
|
if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */
|
|
input_report_key(dev2, BTN_LEFT, packet[0] & 1);
|
|
input_report_key(dev2, BTN_RIGHT, packet[0] & 2);
|
|
input_report_key(dev2, BTN_MIDDLE, 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);
|
|
return;
|
|
}
|
|
|
|
if (priv->i->flags & ALPS_OLDPROTO) {
|
|
left = packet[2] & 0x08;
|
|
right = packet[2] & 0x10;
|
|
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];
|
|
}
|
|
|
|
ges = packet[2] & 1;
|
|
fin = packet[2] & 2;
|
|
|
|
input_report_key(dev, BTN_LEFT, left);
|
|
input_report_key(dev, BTN_RIGHT, right);
|
|
input_report_key(dev, BTN_MIDDLE, middle);
|
|
|
|
if ((priv->i->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));
|
|
input_sync(dev);
|
|
input_sync(dev2);
|
|
return;
|
|
}
|
|
|
|
/* 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->i->flags & ALPS_WHEEL)
|
|
input_report_rel(dev, REL_WHEEL, ((packet[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08));
|
|
|
|
if (priv->i->flags & ALPS_FW_BK) {
|
|
input_report_key(dev, BTN_FORWARD, packet[0] & 0x10);
|
|
input_report_key(dev, BTN_BACK, packet[2] & 0x04);
|
|
}
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
|
|
if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
|
|
if (psmouse->pktcnt == 3) {
|
|
alps_process_packet(psmouse, regs);
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0)
|
|
return PSMOUSE_BAD_DATA;
|
|
|
|
/* Bytes 2 - 6 should have 0 in the highest bit */
|
|
if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
|
|
(psmouse->packet[psmouse->pktcnt - 1] & 0x80))
|
|
return PSMOUSE_BAD_DATA;
|
|
|
|
if (psmouse->pktcnt == 6) {
|
|
alps_process_packet(psmouse, regs);
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
|
|
return PSMOUSE_GOOD_DATA;
|
|
}
|
|
|
|
static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
|
|
unsigned char param[4];
|
|
int i;
|
|
|
|
/*
|
|
* First try "E6 report".
|
|
* ALPS should return 0,0,10 or 0,0,100
|
|
*/
|
|
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;
|
|
|
|
dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
|
|
|
|
if (param[0] != 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;
|
|
|
|
dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++);
|
|
*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)))
|
|
return alps_model_data + i;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* 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(struct psmouse *psmouse, int enable)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[3];
|
|
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_command(ps2dev, param, 0x0300);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alps_absolute_mode(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;
|
|
|
|
dbg("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;
|
|
}
|
|
|
|
static int alps_reconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
unsigned char param[4];
|
|
int version;
|
|
|
|
psmouse_reset(psmouse);
|
|
|
|
if (!(priv->i = alps_get_model(psmouse, &version)))
|
|
return -1;
|
|
|
|
if (priv->i->flags & ALPS_PASS && alps_passthrough_mode(psmouse, 1))
|
|
return -1;
|
|
|
|
if (alps_get_status(psmouse, param))
|
|
return -1;
|
|
|
|
if (!(param[0] & 0x04))
|
|
alps_tap_mode(psmouse, 1);
|
|
|
|
if (alps_absolute_mode(psmouse)) {
|
|
printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
|
|
return -1;
|
|
}
|
|
|
|
if (priv->i->flags == ALPS_PASS && alps_passthrough_mode(psmouse, 0))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void alps_disconnect(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv = psmouse->private;
|
|
psmouse_reset(psmouse);
|
|
input_unregister_device(&priv->dev2);
|
|
kfree(priv);
|
|
}
|
|
|
|
int alps_init(struct psmouse *psmouse)
|
|
{
|
|
struct alps_data *priv;
|
|
unsigned char param[4];
|
|
int version;
|
|
|
|
psmouse->private = priv = kmalloc(sizeof(struct alps_data), GFP_KERNEL);
|
|
if (!priv)
|
|
goto init_fail;
|
|
memset(priv, 0, sizeof(struct alps_data));
|
|
|
|
if (!(priv->i = alps_get_model(psmouse, &version)))
|
|
goto init_fail;
|
|
|
|
if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1))
|
|
goto init_fail;
|
|
|
|
if (alps_get_status(psmouse, param)) {
|
|
printk(KERN_ERR "alps.c: touchpad status report request failed\n");
|
|
goto init_fail;
|
|
}
|
|
|
|
if (param[0] & 0x04) {
|
|
printk(KERN_INFO "alps.c: Enabling hardware tapping\n");
|
|
if (alps_tap_mode(psmouse, 1))
|
|
printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
|
|
}
|
|
|
|
if (alps_absolute_mode(psmouse)) {
|
|
printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
|
|
goto init_fail;
|
|
}
|
|
|
|
if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0))
|
|
goto init_fail;
|
|
|
|
psmouse->dev.evbit[LONG(EV_KEY)] |= BIT(EV_KEY);
|
|
psmouse->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
|
|
psmouse->dev.keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER);
|
|
psmouse->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
|
|
|
|
psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS);
|
|
input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0);
|
|
input_set_abs_params(&psmouse->dev, ABS_Y, 0, 767, 0, 0);
|
|
input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0);
|
|
|
|
if (priv->i->flags & ALPS_WHEEL) {
|
|
psmouse->dev.evbit[LONG(EV_REL)] |= BIT(EV_REL);
|
|
psmouse->dev.relbit[LONG(REL_WHEEL)] |= BIT(REL_WHEEL);
|
|
}
|
|
|
|
if (priv->i->flags & ALPS_FW_BK) {
|
|
psmouse->dev.keybit[LONG(BTN_FORWARD)] |= BIT(BTN_FORWARD);
|
|
psmouse->dev.keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK);
|
|
}
|
|
|
|
sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys);
|
|
priv->dev2.phys = priv->phys;
|
|
priv->dev2.name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
|
|
priv->dev2.id.bustype = BUS_I8042;
|
|
priv->dev2.id.vendor = 0x0002;
|
|
priv->dev2.id.product = PSMOUSE_ALPS;
|
|
priv->dev2.id.version = 0x0000;
|
|
|
|
priv->dev2.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
|
|
priv->dev2.relbit[LONG(REL_X)] |= BIT(REL_X) | BIT(REL_Y);
|
|
priv->dev2.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
|
|
|
|
input_register_device(&priv->dev2);
|
|
|
|
printk(KERN_INFO "input: %s on %s\n", priv->dev2.name, psmouse->ps2dev.serio->phys);
|
|
|
|
psmouse->protocol_handler = alps_process_byte;
|
|
psmouse->disconnect = alps_disconnect;
|
|
psmouse->reconnect = alps_reconnect;
|
|
psmouse->pktsize = 6;
|
|
|
|
return 0;
|
|
|
|
init_fail:
|
|
kfree(priv);
|
|
return -1;
|
|
}
|
|
|
|
int alps_detect(struct psmouse *psmouse, int set_properties)
|
|
{
|
|
int version;
|
|
struct alps_model_info *model;
|
|
|
|
if (!(model = alps_get_model(psmouse, &version)))
|
|
return -1;
|
|
|
|
if (set_properties) {
|
|
psmouse->vendor = "ALPS";
|
|
if (model->flags & ALPS_DUALPOINT)
|
|
psmouse->name = "DualPoint TouchPad";
|
|
else
|
|
psmouse->name = "GlidePoint";
|
|
psmouse->model = version;
|
|
}
|
|
return 0;
|
|
}
|
|
|