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![Jeff Garzik](/assets/img/avatar_default.png)
Three main sets of changes: 1) dmi_get_system_info() return value should have been marked const, since callers should not be changing that data. 2) const-ify DMI internals, since DMI firmware tables should, whenever possible, be marked const to ensure we never ever write to that data area. 3) const-ify DMI API, to enable marking tables const where possible in low-level drivers. And if we're really lucky, this might enable some additional optimizations on the part of the compiler. The bulk of the changes are #2 and #3, which are interrelated. #1 could have been a separate patch, but it was so small compared to the others, it was easier to roll it into this changeset. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
708 lines
19 KiB
C
708 lines
19 KiB
C
/*
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* Synaptics TouchPad PS/2 mouse driver
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*
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* 2003 Dmitry Torokhov <dtor@mail.ru>
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* Added support for pass-through port. Special thanks to Peter Berg Larsen
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* for explaining various Synaptics quirks.
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*
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* 2003 Peter Osterlund <petero2@telia.com>
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* Ported to 2.5 input device infrastructure.
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*
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* Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch>
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* start merging tpconfig and gpm code to a xfree-input module
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* adding some changes and extensions (ex. 3rd and 4th button)
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*
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* Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu>
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* Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com>
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* code for the special synaptics commands (from the tpconfig-source)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* Trademarks are the property of their respective owners.
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*/
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#include <linux/module.h>
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#include <linux/input.h>
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#include <linux/serio.h>
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#include <linux/libps2.h>
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#include "psmouse.h"
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#include "synaptics.h"
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/*
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* The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
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* section 2.3.2, which says that they should be valid regardless of the
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* actual size of the sensor.
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*/
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#define XMIN_NOMINAL 1472
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#define XMAX_NOMINAL 5472
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#define YMIN_NOMINAL 1408
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#define YMAX_NOMINAL 4448
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/*****************************************************************************
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* Stuff we need even when we do not want native Synaptics support
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****************************************************************************/
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/*
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* Set the synaptics touchpad mode byte by special commands
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*/
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static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
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{
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unsigned char param[1];
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if (psmouse_sliced_command(psmouse, mode))
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return -1;
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param[0] = SYN_PS_SET_MODE2;
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if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
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return -1;
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return 0;
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}
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int synaptics_detect(struct psmouse *psmouse, int set_properties)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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unsigned char param[4];
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param[0] = 0;
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ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
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ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
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ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
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ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
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ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
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if (param[1] != 0x47)
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return -ENODEV;
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if (set_properties) {
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psmouse->vendor = "Synaptics";
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psmouse->name = "TouchPad";
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}
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return 0;
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}
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void synaptics_reset(struct psmouse *psmouse)
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{
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/* reset touchpad back to relative mode, gestures enabled */
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synaptics_mode_cmd(psmouse, 0);
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}
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#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
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/*****************************************************************************
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* Synaptics communications functions
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****************************************************************************/
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/*
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* Send a command to the synpatics touchpad by special commands
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*/
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static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
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{
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if (psmouse_sliced_command(psmouse, c))
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return -1;
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if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
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return -1;
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return 0;
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}
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/*
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* Read the model-id bytes from the touchpad
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* see also SYN_MODEL_* macros
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*/
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static int synaptics_model_id(struct psmouse *psmouse)
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{
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struct synaptics_data *priv = psmouse->private;
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unsigned char mi[3];
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if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
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return -1;
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priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
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return 0;
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}
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/*
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* Read the capability-bits from the touchpad
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* see also the SYN_CAP_* macros
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*/
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static int synaptics_capability(struct psmouse *psmouse)
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{
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struct synaptics_data *priv = psmouse->private;
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unsigned char cap[3];
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if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
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return -1;
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priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
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priv->ext_cap = 0;
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if (!SYN_CAP_VALID(priv->capabilities))
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return -1;
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/*
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* Unless capExtended is set the rest of the flags should be ignored
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*/
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if (!SYN_CAP_EXTENDED(priv->capabilities))
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priv->capabilities = 0;
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if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
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if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
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printk(KERN_ERR "Synaptics claims to have extended capabilities,"
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" but I'm not able to read them.");
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} else {
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priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
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/*
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* if nExtBtn is greater than 8 it should be considered
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* invalid and treated as 0
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*/
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if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
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priv->ext_cap &= 0xff0fff;
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}
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}
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return 0;
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}
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/*
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* Identify Touchpad
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* See also the SYN_ID_* macros
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*/
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static int synaptics_identify(struct psmouse *psmouse)
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{
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struct synaptics_data *priv = psmouse->private;
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unsigned char id[3];
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if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
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return -1;
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priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
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if (SYN_ID_IS_SYNAPTICS(priv->identity))
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return 0;
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return -1;
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}
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static int synaptics_query_hardware(struct psmouse *psmouse)
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{
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int retries = 0;
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while ((retries++ < 3) && psmouse_reset(psmouse))
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/* empty */;
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if (synaptics_identify(psmouse))
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return -1;
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if (synaptics_model_id(psmouse))
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return -1;
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if (synaptics_capability(psmouse))
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return -1;
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return 0;
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}
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static int synaptics_set_absolute_mode(struct psmouse *psmouse)
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{
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struct synaptics_data *priv = psmouse->private;
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priv->mode = SYN_BIT_ABSOLUTE_MODE;
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if (SYN_ID_MAJOR(priv->identity) >= 4)
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priv->mode |= SYN_BIT_DISABLE_GESTURE;
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if (SYN_CAP_EXTENDED(priv->capabilities))
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priv->mode |= SYN_BIT_W_MODE;
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if (synaptics_mode_cmd(psmouse, priv->mode))
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return -1;
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return 0;
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}
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static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
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{
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struct synaptics_data *priv = psmouse->private;
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if (rate >= 80) {
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priv->mode |= SYN_BIT_HIGH_RATE;
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psmouse->rate = 80;
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} else {
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priv->mode &= ~SYN_BIT_HIGH_RATE;
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psmouse->rate = 40;
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}
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synaptics_mode_cmd(psmouse, priv->mode);
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}
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/*****************************************************************************
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* Synaptics pass-through PS/2 port support
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****************************************************************************/
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static int synaptics_pt_write(struct serio *serio, unsigned char c)
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{
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struct psmouse *parent = serio_get_drvdata(serio->parent);
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char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
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if (psmouse_sliced_command(parent, c))
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return -1;
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if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
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return -1;
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return 0;
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}
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static inline int synaptics_is_pt_packet(unsigned char *buf)
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{
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return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
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}
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static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
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{
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struct psmouse *child = serio_get_drvdata(ptport);
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if (child && child->state == PSMOUSE_ACTIVATED) {
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serio_interrupt(ptport, packet[1], 0);
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serio_interrupt(ptport, packet[4], 0);
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serio_interrupt(ptport, packet[5], 0);
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if (child->pktsize == 4)
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serio_interrupt(ptport, packet[2], 0);
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} else
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serio_interrupt(ptport, packet[1], 0);
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}
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static void synaptics_pt_activate(struct psmouse *psmouse)
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{
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struct serio *ptport = psmouse->ps2dev.serio->child;
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struct psmouse *child = serio_get_drvdata(ptport);
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struct synaptics_data *priv = psmouse->private;
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/* adjust the touchpad to child's choice of protocol */
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if (child) {
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if (child->pktsize == 4)
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priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
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else
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priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
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if (synaptics_mode_cmd(psmouse, priv->mode))
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printk(KERN_INFO "synaptics: failed to switch guest protocol\n");
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}
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}
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static void synaptics_pt_create(struct psmouse *psmouse)
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{
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struct serio *serio;
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serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
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if (!serio) {
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printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
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return;
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}
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serio->id.type = SERIO_PS_PSTHRU;
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strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
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strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
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serio->write = synaptics_pt_write;
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serio->parent = psmouse->ps2dev.serio;
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psmouse->pt_activate = synaptics_pt_activate;
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printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys);
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serio_register_port(serio);
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}
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/*****************************************************************************
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* Functions to interpret the absolute mode packets
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****************************************************************************/
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static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw)
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{
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memset(hw, 0, sizeof(struct synaptics_hw_state));
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if (SYN_MODEL_NEWABS(priv->model_id)) {
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hw->x = (((buf[3] & 0x10) << 8) |
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((buf[1] & 0x0f) << 8) |
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buf[4]);
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hw->y = (((buf[3] & 0x20) << 7) |
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((buf[1] & 0xf0) << 4) |
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buf[5]);
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hw->z = buf[2];
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hw->w = (((buf[0] & 0x30) >> 2) |
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((buf[0] & 0x04) >> 1) |
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((buf[3] & 0x04) >> 2));
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hw->left = (buf[0] & 0x01) ? 1 : 0;
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hw->right = (buf[0] & 0x02) ? 1 : 0;
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if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
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hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
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if (hw->w == 2)
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hw->scroll = (signed char)(buf[1]);
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}
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if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
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hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
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hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
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}
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if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
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((buf[0] ^ buf[3]) & 0x02)) {
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switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
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default:
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/*
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* if nExtBtn is greater than 8 it should be
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* considered invalid and treated as 0
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*/
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break;
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case 8:
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hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
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hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
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case 6:
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hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
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hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
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case 4:
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hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
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hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
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case 2:
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hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
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hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
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}
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}
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} else {
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hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
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hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
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hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
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hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
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hw->left = (buf[0] & 0x01) ? 1 : 0;
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hw->right = (buf[0] & 0x02) ? 1 : 0;
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}
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}
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/*
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* called for each full received packet from the touchpad
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*/
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static void synaptics_process_packet(struct psmouse *psmouse)
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{
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struct input_dev *dev = psmouse->dev;
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struct synaptics_data *priv = psmouse->private;
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struct synaptics_hw_state hw;
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int num_fingers;
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int finger_width;
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int i;
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synaptics_parse_hw_state(psmouse->packet, priv, &hw);
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if (hw.scroll) {
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priv->scroll += hw.scroll;
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while (priv->scroll >= 4) {
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input_report_key(dev, BTN_BACK, !hw.down);
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input_sync(dev);
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input_report_key(dev, BTN_BACK, hw.down);
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input_sync(dev);
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priv->scroll -= 4;
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}
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while (priv->scroll <= -4) {
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input_report_key(dev, BTN_FORWARD, !hw.up);
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input_sync(dev);
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input_report_key(dev, BTN_FORWARD, hw.up);
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input_sync(dev);
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priv->scroll += 4;
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}
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return;
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}
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if (hw.z > 0) {
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num_fingers = 1;
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finger_width = 5;
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if (SYN_CAP_EXTENDED(priv->capabilities)) {
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switch (hw.w) {
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case 0 ... 1:
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if (SYN_CAP_MULTIFINGER(priv->capabilities))
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num_fingers = hw.w + 2;
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break;
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case 2:
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if (SYN_MODEL_PEN(priv->model_id))
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; /* Nothing, treat a pen as a single finger */
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break;
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case 4 ... 15:
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if (SYN_CAP_PALMDETECT(priv->capabilities))
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finger_width = hw.w;
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break;
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}
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}
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} else {
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num_fingers = 0;
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finger_width = 0;
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}
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/* Post events
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* BTN_TOUCH has to be first as mousedev relies on it when doing
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* absolute -> relative conversion
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*/
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if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
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if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
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if (hw.z > 0) {
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input_report_abs(dev, ABS_X, hw.x);
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input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y);
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}
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input_report_abs(dev, ABS_PRESSURE, hw.z);
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input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
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input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
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input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
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input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
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input_report_key(dev, BTN_LEFT, hw.left);
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input_report_key(dev, BTN_RIGHT, hw.right);
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if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
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input_report_key(dev, BTN_MIDDLE, hw.middle);
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if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
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input_report_key(dev, BTN_FORWARD, hw.up);
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input_report_key(dev, BTN_BACK, hw.down);
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}
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for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
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input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
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input_sync(dev);
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}
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static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
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{
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static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
|
|
static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
|
|
static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
|
|
static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
|
|
static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
|
|
|
|
if (idx < 0 || idx > 4)
|
|
return 0;
|
|
|
|
switch (pkt_type) {
|
|
case SYN_NEWABS:
|
|
case SYN_NEWABS_RELAXED:
|
|
return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
|
|
|
|
case SYN_NEWABS_STRICT:
|
|
return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
|
|
|
|
case SYN_OLDABS:
|
|
return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
|
|
|
|
default:
|
|
printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 5; i++)
|
|
if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) {
|
|
printk(KERN_INFO "synaptics: using relaxed packet validation\n");
|
|
return SYN_NEWABS_RELAXED;
|
|
}
|
|
|
|
return SYN_NEWABS_STRICT;
|
|
}
|
|
|
|
static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
|
|
{
|
|
struct synaptics_data *priv = psmouse->private;
|
|
|
|
if (psmouse->pktcnt >= 6) { /* Full packet received */
|
|
if (unlikely(priv->pkt_type == SYN_NEWABS))
|
|
priv->pkt_type = synaptics_detect_pkt_type(psmouse);
|
|
|
|
if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
|
|
if (psmouse->ps2dev.serio->child)
|
|
synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet);
|
|
} else
|
|
synaptics_process_packet(psmouse);
|
|
|
|
return PSMOUSE_FULL_PACKET;
|
|
}
|
|
|
|
return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
|
|
PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Driver initialization/cleanup functions
|
|
****************************************************************************/
|
|
static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
|
|
{
|
|
int i;
|
|
|
|
set_bit(EV_ABS, dev->evbit);
|
|
input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
|
|
input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
|
|
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
|
|
set_bit(ABS_TOOL_WIDTH, dev->absbit);
|
|
|
|
set_bit(EV_KEY, dev->evbit);
|
|
set_bit(BTN_TOUCH, dev->keybit);
|
|
set_bit(BTN_TOOL_FINGER, dev->keybit);
|
|
set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
|
|
set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
|
|
|
|
set_bit(BTN_LEFT, dev->keybit);
|
|
set_bit(BTN_RIGHT, dev->keybit);
|
|
|
|
if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
|
|
set_bit(BTN_MIDDLE, dev->keybit);
|
|
|
|
if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
|
|
SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
|
|
set_bit(BTN_FORWARD, dev->keybit);
|
|
set_bit(BTN_BACK, dev->keybit);
|
|
}
|
|
|
|
for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
|
|
set_bit(BTN_0 + i, dev->keybit);
|
|
|
|
clear_bit(EV_REL, dev->evbit);
|
|
clear_bit(REL_X, dev->relbit);
|
|
clear_bit(REL_Y, dev->relbit);
|
|
}
|
|
|
|
static void synaptics_disconnect(struct psmouse *psmouse)
|
|
{
|
|
synaptics_reset(psmouse);
|
|
kfree(psmouse->private);
|
|
psmouse->private = NULL;
|
|
}
|
|
|
|
static int synaptics_reconnect(struct psmouse *psmouse)
|
|
{
|
|
struct synaptics_data *priv = psmouse->private;
|
|
struct synaptics_data old_priv = *priv;
|
|
|
|
if (synaptics_detect(psmouse, 0))
|
|
return -1;
|
|
|
|
if (synaptics_query_hardware(psmouse)) {
|
|
printk(KERN_ERR "Unable to query Synaptics hardware.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (old_priv.identity != priv->identity ||
|
|
old_priv.model_id != priv->model_id ||
|
|
old_priv.capabilities != priv->capabilities ||
|
|
old_priv.ext_cap != priv->ext_cap)
|
|
return -1;
|
|
|
|
if (synaptics_set_absolute_mode(psmouse)) {
|
|
printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(__i386__)
|
|
#include <linux/dmi.h>
|
|
static const struct dmi_system_id toshiba_dmi_table[] = {
|
|
{
|
|
.ident = "Toshiba Satellite",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Toshiba Dynabook",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Toshiba Portege M300",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
|
|
},
|
|
},
|
|
{ }
|
|
};
|
|
#endif
|
|
|
|
int synaptics_init(struct psmouse *psmouse)
|
|
{
|
|
struct synaptics_data *priv;
|
|
|
|
psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
|
|
if (!priv)
|
|
return -1;
|
|
|
|
if (synaptics_query_hardware(psmouse)) {
|
|
printk(KERN_ERR "Unable to query Synaptics hardware.\n");
|
|
goto init_fail;
|
|
}
|
|
|
|
if (synaptics_set_absolute_mode(psmouse)) {
|
|
printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
|
|
goto init_fail;
|
|
}
|
|
|
|
priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
|
|
|
|
printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n",
|
|
SYN_ID_MODEL(priv->identity),
|
|
SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
|
|
priv->model_id, priv->capabilities, priv->ext_cap);
|
|
|
|
set_input_params(psmouse->dev, priv);
|
|
|
|
/*
|
|
* Encode touchpad model so that it can be used to set
|
|
* input device->id.version and be visible to userspace.
|
|
* Because version is __u16 we have to drop something.
|
|
* Hardware info bits seem to be good candidates as they
|
|
* are documented to be for Synaptics corp. internal use.
|
|
*/
|
|
psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
|
|
(priv->model_id & 0x000000ff);
|
|
|
|
psmouse->protocol_handler = synaptics_process_byte;
|
|
psmouse->set_rate = synaptics_set_rate;
|
|
psmouse->disconnect = synaptics_disconnect;
|
|
psmouse->reconnect = synaptics_reconnect;
|
|
psmouse->cleanup = synaptics_reset;
|
|
psmouse->pktsize = 6;
|
|
/* Synaptics can usually stay in sync without extra help */
|
|
psmouse->resync_time = 0;
|
|
|
|
if (SYN_CAP_PASS_THROUGH(priv->capabilities))
|
|
synaptics_pt_create(psmouse);
|
|
|
|
#if defined(__i386__)
|
|
/*
|
|
* Toshiba's KBC seems to have trouble handling data from
|
|
* Synaptics as full rate, switch to lower rate which is roughly
|
|
* thye same as rate of standard PS/2 mouse.
|
|
*/
|
|
if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) {
|
|
printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
|
|
dmi_get_system_info(DMI_PRODUCT_NAME));
|
|
psmouse->rate = 40;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
init_fail:
|
|
kfree(priv);
|
|
return -1;
|
|
}
|
|
|
|
#else /* CONFIG_MOUSE_PS2_SYNAPTICS */
|
|
|
|
int synaptics_init(struct psmouse *psmouse)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
#endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
|
|
|