mirror of https://gitee.com/openkylin/linux.git
798 lines
21 KiB
C
798 lines
21 KiB
C
/*
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* Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver
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*
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* Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
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* Copyright (C) 2005-2008 Johannes Berg (johannes@sipsolutions.net)
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* Copyright (C) 2005 Stelian Pop (stelian@popies.net)
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* Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
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* Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
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* Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
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* Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
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* Copyright (C) 2007-2008 Sven Anders (anders@anduras.de)
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*
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* Thanks to Alex Harper <basilisk@foobox.net> for his inputs.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/usb/input.h>
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/* Type of touchpad */
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enum atp_touchpad_type {
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ATP_FOUNTAIN,
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ATP_GEYSER1,
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ATP_GEYSER2,
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ATP_GEYSER3,
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ATP_GEYSER4
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};
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#define ATP_DEVICE(prod, type) \
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{ \
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.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
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USB_DEVICE_ID_MATCH_INT_CLASS | \
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USB_DEVICE_ID_MATCH_INT_PROTOCOL, \
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.idVendor = 0x05ac, /* Apple */ \
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.idProduct = (prod), \
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.bInterfaceClass = 0x03, \
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.bInterfaceProtocol = 0x02, \
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.driver_info = ATP_ ## type, \
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}
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/*
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* Table of devices (Product IDs) that work with this driver.
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* (The names come from Info.plist in AppleUSBTrackpad.kext,
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* According to Info.plist Geyser IV is the same as Geyser III.)
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*/
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static struct usb_device_id atp_table [] = {
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/* PowerBooks Feb 2005, iBooks G4 */
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ATP_DEVICE(0x020e, FOUNTAIN), /* FOUNTAIN ANSI */
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ATP_DEVICE(0x020f, FOUNTAIN), /* FOUNTAIN ISO */
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ATP_DEVICE(0x030a, FOUNTAIN), /* FOUNTAIN TP ONLY */
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ATP_DEVICE(0x030b, GEYSER1), /* GEYSER 1 TP ONLY */
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/* PowerBooks Oct 2005 */
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ATP_DEVICE(0x0214, GEYSER2), /* GEYSER 2 ANSI */
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ATP_DEVICE(0x0215, GEYSER2), /* GEYSER 2 ISO */
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ATP_DEVICE(0x0216, GEYSER2), /* GEYSER 2 JIS */
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/* Core Duo MacBook & MacBook Pro */
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ATP_DEVICE(0x0217, GEYSER3), /* GEYSER 3 ANSI */
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ATP_DEVICE(0x0218, GEYSER3), /* GEYSER 3 ISO */
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ATP_DEVICE(0x0219, GEYSER3), /* GEYSER 3 JIS */
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/* Core2 Duo MacBook & MacBook Pro */
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ATP_DEVICE(0x021a, GEYSER4), /* GEYSER 4 ANSI */
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ATP_DEVICE(0x021b, GEYSER4), /* GEYSER 4 ISO */
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ATP_DEVICE(0x021c, GEYSER4), /* GEYSER 4 JIS */
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/* Core2 Duo MacBook3,1 */
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ATP_DEVICE(0x0229, GEYSER4), /* GEYSER 4 HF ANSI */
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ATP_DEVICE(0x022a, GEYSER4), /* GEYSER 4 HF ISO */
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ATP_DEVICE(0x022b, GEYSER4), /* GEYSER 4 HF JIS */
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/* Terminating entry */
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{ }
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};
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MODULE_DEVICE_TABLE(usb, atp_table);
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/*
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* number of sensors. Note that only 16 instead of 26 X (horizontal)
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* sensors exist on 12" and 15" PowerBooks. All models have 16 Y
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* (vertical) sensors.
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*/
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#define ATP_XSENSORS 26
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#define ATP_YSENSORS 16
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/* amount of fuzz this touchpad generates */
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#define ATP_FUZZ 16
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/* maximum pressure this driver will report */
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#define ATP_PRESSURE 300
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/*
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* multiplication factor for the X and Y coordinates.
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* We try to keep the touchpad aspect ratio while still doing only simple
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* arithmetics.
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* The factors below give coordinates like:
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*
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* 0 <= x < 960 on 12" and 15" Powerbooks
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* 0 <= x < 1600 on 17" Powerbooks and 17" MacBook Pro
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* 0 <= x < 1216 on MacBooks and 15" MacBook Pro
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*
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* 0 <= y < 646 on all Powerbooks
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* 0 <= y < 774 on all MacBooks
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*/
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#define ATP_XFACT 64
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#define ATP_YFACT 43
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/*
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* Threshold for the touchpad sensors. Any change less than ATP_THRESHOLD is
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* ignored.
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*/
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#define ATP_THRESHOLD 5
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/* Geyser initialization constants */
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#define ATP_GEYSER_MODE_READ_REQUEST_ID 1
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#define ATP_GEYSER_MODE_WRITE_REQUEST_ID 9
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#define ATP_GEYSER_MODE_REQUEST_VALUE 0x300
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#define ATP_GEYSER_MODE_REQUEST_INDEX 0
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#define ATP_GEYSER_MODE_VENDOR_VALUE 0x04
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/* Structure to hold all of our device specific stuff */
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struct atp {
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char phys[64];
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struct usb_device *udev; /* usb device */
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struct urb *urb; /* usb request block */
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signed char *data; /* transferred data */
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struct input_dev *input; /* input dev */
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enum atp_touchpad_type type; /* type of touchpad */
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bool open;
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bool valid; /* are the samples valid? */
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bool size_detect_done;
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bool overflow_warned;
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int x_old; /* last reported x/y, */
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int y_old; /* used for smoothing */
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signed char xy_cur[ATP_XSENSORS + ATP_YSENSORS];
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signed char xy_old[ATP_XSENSORS + ATP_YSENSORS];
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int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
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int datalen; /* size of USB transfer */
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int idlecount; /* number of empty packets */
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struct work_struct work;
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};
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#define dbg_dump(msg, tab) \
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if (debug > 1) { \
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int __i; \
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printk(KERN_DEBUG "appletouch: %s", msg); \
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for (__i = 0; __i < ATP_XSENSORS + ATP_YSENSORS; __i++) \
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printk(" %02x", tab[__i]); \
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printk("\n"); \
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}
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#define dprintk(format, a...) \
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do { \
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if (debug) \
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printk(KERN_DEBUG format, ##a); \
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} while (0)
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MODULE_AUTHOR("Johannes Berg");
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MODULE_AUTHOR("Stelian Pop");
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MODULE_AUTHOR("Frank Arnold");
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MODULE_AUTHOR("Michael Hanselmann");
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MODULE_AUTHOR("Sven Anders");
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MODULE_DESCRIPTION("Apple PowerBook and MacBook USB touchpad driver");
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MODULE_LICENSE("GPL");
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/*
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* Make the threshold a module parameter
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*/
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static int threshold = ATP_THRESHOLD;
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module_param(threshold, int, 0644);
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MODULE_PARM_DESC(threshold, "Discard any change in data from a sensor"
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" (the trackpad has many of these sensors)"
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" less than this value.");
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Activate debugging output");
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/*
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* By default newer Geyser devices send standard USB HID mouse
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* packets (Report ID 2). This code changes device mode, so it
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* sends raw sensor reports (Report ID 5).
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*/
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static int atp_geyser_init(struct usb_device *udev)
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{
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char data[8];
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int size;
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int i;
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size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
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ATP_GEYSER_MODE_READ_REQUEST_ID,
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USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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ATP_GEYSER_MODE_REQUEST_VALUE,
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ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
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if (size != 8) {
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dprintk("atp_geyser_init: read error\n");
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for (i = 0; i < 8; i++)
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dprintk("appletouch[%d]: %d\n", i, data[i]);
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err("Failed to read mode from device.");
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return -EIO;
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}
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/* Apply the mode switch */
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data[0] = ATP_GEYSER_MODE_VENDOR_VALUE;
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size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
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ATP_GEYSER_MODE_WRITE_REQUEST_ID,
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USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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ATP_GEYSER_MODE_REQUEST_VALUE,
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ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
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if (size != 8) {
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dprintk("atp_geyser_init: write error\n");
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for (i = 0; i < 8; i++)
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dprintk("appletouch[%d]: %d\n", i, data[i]);
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err("Failed to request geyser raw mode");
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return -EIO;
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}
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return 0;
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}
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/*
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* Reinitialise the device. This usually stops stream of empty packets
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* coming from it.
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*/
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static void atp_reinit(struct work_struct *work)
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{
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struct atp *dev = container_of(work, struct atp, work);
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struct usb_device *udev = dev->udev;
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int retval;
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dprintk("appletouch: putting appletouch to sleep (reinit)\n");
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dev->idlecount = 0;
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atp_geyser_init(udev);
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retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
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if (retval)
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err("atp_reinit: usb_submit_urb failed with error %d",
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retval);
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}
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static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
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int *z, int *fingers)
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{
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int i;
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/* values to calculate mean */
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int pcum = 0, psum = 0;
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int is_increasing = 0;
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*fingers = 0;
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for (i = 0; i < nb_sensors; i++) {
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if (xy_sensors[i] < threshold) {
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if (is_increasing)
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is_increasing = 0;
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continue;
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}
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/*
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* Makes the finger detection more versatile. For example,
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* two fingers with no gap will be detected. Also, my
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* tests show it less likely to have intermittent loss
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* of multiple finger readings while moving around (scrolling).
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*
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* Changes the multiple finger detection to counting humps on
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* sensors (transitions from nonincreasing to increasing)
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* instead of counting transitions from low sensors (no
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* finger reading) to high sensors (finger above
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* sensor)
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*
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* - Jason Parekh <jasonparekh@gmail.com>
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*/
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if (i < 1 ||
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(!is_increasing && xy_sensors[i - 1] < xy_sensors[i])) {
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(*fingers)++;
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is_increasing = 1;
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} else if (i > 0 && xy_sensors[i - 1] >= xy_sensors[i]) {
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is_increasing = 0;
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}
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/*
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* Subtracts threshold so a high sensor that just passes the
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* threshold won't skew the calculated absolute coordinate.
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* Fixes an issue where slowly moving the mouse would
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* occasionally jump a number of pixels (slowly moving the
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* finger makes this issue most apparent.)
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*/
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pcum += (xy_sensors[i] - threshold) * i;
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psum += (xy_sensors[i] - threshold);
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}
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if (psum > 0) {
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*z = psum;
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return pcum * fact / psum;
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}
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return 0;
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}
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static inline void atp_report_fingers(struct input_dev *input, int fingers)
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{
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input_report_key(input, BTN_TOOL_FINGER, fingers == 1);
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input_report_key(input, BTN_TOOL_DOUBLETAP, fingers == 2);
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input_report_key(input, BTN_TOOL_TRIPLETAP, fingers > 2);
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}
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static void atp_complete(struct urb *urb)
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{
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int x, y, x_z, y_z, x_f, y_f;
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int retval, i, j;
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int key;
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struct atp *dev = urb->context;
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switch (urb->status) {
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case 0:
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/* success */
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break;
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case -EOVERFLOW:
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if (!dev->overflow_warned) {
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printk(KERN_WARNING "appletouch: OVERFLOW with data "
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"length %d, actual length is %d\n",
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dev->datalen, dev->urb->actual_length);
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dev->overflow_warned = true;
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}
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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/* This urb is terminated, clean up */
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dbg("atp_complete: urb shutting down with status: %d",
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urb->status);
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return;
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default:
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dbg("atp_complete: nonzero urb status received: %d",
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urb->status);
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goto exit;
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}
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/* drop incomplete datasets */
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if (dev->urb->actual_length != dev->datalen) {
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dprintk("appletouch: incomplete data package"
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" (first byte: %d, length: %d).\n",
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dev->data[0], dev->urb->actual_length);
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goto exit;
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}
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/* reorder the sensors values */
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if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) {
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memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
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/*
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* The values are laid out like this:
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* -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ...
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* '-' is an unused value.
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*/
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/* read X values */
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for (i = 0, j = 19; i < 20; i += 2, j += 3) {
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dev->xy_cur[i] = dev->data[j + 1];
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dev->xy_cur[i + 1] = dev->data[j + 2];
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}
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/* read Y values */
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for (i = 0, j = 1; i < 9; i += 2, j += 3) {
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dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1];
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dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2];
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}
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} else if (dev->type == ATP_GEYSER2) {
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memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
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/*
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* The values are laid out like this:
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* Y1, Y2, -, Y3, Y4, -, ..., X1, X2, -, X3, X4, -, ...
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* '-' is an unused value.
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*/
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/* read X values */
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for (i = 0, j = 19; i < 20; i += 2, j += 3) {
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dev->xy_cur[i] = dev->data[j];
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dev->xy_cur[i + 1] = dev->data[j + 1];
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}
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/* read Y values */
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for (i = 0, j = 1; i < 9; i += 2, j += 3) {
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dev->xy_cur[ATP_XSENSORS + i] = dev->data[j];
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dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 1];
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}
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} else {
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for (i = 0; i < 8; i++) {
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/* X values */
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dev->xy_cur[i + 0] = dev->data[5 * i + 2];
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dev->xy_cur[i + 8] = dev->data[5 * i + 4];
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dev->xy_cur[i + 16] = dev->data[5 * i + 42];
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if (i < 2)
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dev->xy_cur[i + 24] = dev->data[5 * i + 44];
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/* Y values */
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dev->xy_cur[i + 26] = dev->data[5 * i + 1];
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dev->xy_cur[i + 34] = dev->data[5 * i + 3];
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}
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}
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dbg_dump("sample", dev->xy_cur);
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if (!dev->valid) {
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/* first sample */
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dev->valid = true;
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dev->x_old = dev->y_old = -1;
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memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
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if (dev->size_detect_done ||
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dev->type == ATP_GEYSER3) /* No 17" Macbooks (yet) */
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goto exit;
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/* 17" Powerbooks have extra X sensors */
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for (i = (dev->type == ATP_GEYSER2 ? 15 : 16);
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i < ATP_XSENSORS; i++) {
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if (!dev->xy_cur[i])
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continue;
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printk(KERN_INFO "appletouch: 17\" model detected.\n");
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if (dev->type == ATP_GEYSER2)
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input_set_abs_params(dev->input, ABS_X, 0,
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(20 - 1) *
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ATP_XFACT - 1,
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ATP_FUZZ, 0);
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else
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input_set_abs_params(dev->input, ABS_X, 0,
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(ATP_XSENSORS - 1) *
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ATP_XFACT - 1,
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ATP_FUZZ, 0);
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break;
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}
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dev->size_detect_done = 1;
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goto exit;
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}
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for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) {
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/* accumulate the change */
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signed char change = dev->xy_old[i] - dev->xy_cur[i];
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dev->xy_acc[i] -= change;
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/* prevent down drifting */
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if (dev->xy_acc[i] < 0)
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dev->xy_acc[i] = 0;
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}
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memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
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dbg_dump("accumulator", dev->xy_acc);
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x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
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ATP_XFACT, &x_z, &x_f);
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y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
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ATP_YFACT, &y_z, &y_f);
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key = dev->data[dev->datalen - 1] & 1;
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if (x && y) {
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if (dev->x_old != -1) {
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x = (dev->x_old * 3 + x) >> 2;
|
|
y = (dev->y_old * 3 + y) >> 2;
|
|
dev->x_old = x;
|
|
dev->y_old = y;
|
|
|
|
if (debug > 1)
|
|
printk(KERN_DEBUG "appletouch: X: %3d Y: %3d "
|
|
"Xz: %3d Yz: %3d\n",
|
|
x, y, x_z, y_z);
|
|
|
|
input_report_key(dev->input, BTN_TOUCH, 1);
|
|
input_report_abs(dev->input, ABS_X, x);
|
|
input_report_abs(dev->input, ABS_Y, y);
|
|
input_report_abs(dev->input, ABS_PRESSURE,
|
|
min(ATP_PRESSURE, x_z + y_z));
|
|
atp_report_fingers(dev->input, max(x_f, y_f));
|
|
}
|
|
dev->x_old = x;
|
|
dev->y_old = y;
|
|
|
|
} else if (!x && !y) {
|
|
|
|
dev->x_old = dev->y_old = -1;
|
|
input_report_key(dev->input, BTN_TOUCH, 0);
|
|
input_report_abs(dev->input, ABS_PRESSURE, 0);
|
|
atp_report_fingers(dev->input, 0);
|
|
|
|
/* reset the accumulator on release */
|
|
memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
|
|
}
|
|
|
|
input_report_key(dev->input, BTN_LEFT, key);
|
|
input_sync(dev->input);
|
|
|
|
/*
|
|
* Many Geysers will continue to send packets continually after
|
|
* the first touch unless reinitialised. Do so if it's been
|
|
* idle for a while in order to avoid waking the kernel up
|
|
* several hundred times a second. Re-initialization does not
|
|
* work on Fountain touchpads.
|
|
*/
|
|
if (dev->type != ATP_FOUNTAIN) {
|
|
/*
|
|
* Button must not be pressed when entering suspend,
|
|
* otherwise we will never release the button.
|
|
*/
|
|
if (!x && !y && !key) {
|
|
dev->idlecount++;
|
|
if (dev->idlecount == 10) {
|
|
dev->valid = false;
|
|
schedule_work(&dev->work);
|
|
/* Don't resubmit urb here, wait for reinit */
|
|
return;
|
|
}
|
|
} else
|
|
dev->idlecount = 0;
|
|
}
|
|
|
|
exit:
|
|
retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
|
|
if (retval)
|
|
err("atp_complete: usb_submit_urb failed with result %d",
|
|
retval);
|
|
}
|
|
|
|
static int atp_open(struct input_dev *input)
|
|
{
|
|
struct atp *dev = input_get_drvdata(input);
|
|
|
|
if (usb_submit_urb(dev->urb, GFP_ATOMIC))
|
|
return -EIO;
|
|
|
|
dev->open = 1;
|
|
return 0;
|
|
}
|
|
|
|
static void atp_close(struct input_dev *input)
|
|
{
|
|
struct atp *dev = input_get_drvdata(input);
|
|
|
|
usb_kill_urb(dev->urb);
|
|
cancel_work_sync(&dev->work);
|
|
dev->open = 0;
|
|
}
|
|
|
|
static int atp_handle_geyser(struct atp *dev)
|
|
{
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
if (dev->type != ATP_FOUNTAIN) {
|
|
/* switch to raw sensor mode */
|
|
if (atp_geyser_init(udev))
|
|
return -EIO;
|
|
|
|
printk(KERN_INFO "appletouch: Geyser mode initialized.\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int atp_probe(struct usb_interface *iface,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct atp *dev;
|
|
struct input_dev *input_dev;
|
|
struct usb_device *udev = interface_to_usbdev(iface);
|
|
struct usb_host_interface *iface_desc;
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
int int_in_endpointAddr = 0;
|
|
int i, error = -ENOMEM;
|
|
|
|
/* set up the endpoint information */
|
|
/* use only the first interrupt-in endpoint */
|
|
iface_desc = iface->cur_altsetting;
|
|
for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
|
|
endpoint = &iface_desc->endpoint[i].desc;
|
|
if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) {
|
|
/* we found an interrupt in endpoint */
|
|
int_in_endpointAddr = endpoint->bEndpointAddress;
|
|
break;
|
|
}
|
|
}
|
|
if (!int_in_endpointAddr) {
|
|
err("Could not find int-in endpoint");
|
|
return -EIO;
|
|
}
|
|
|
|
/* allocate memory for our device state and initialize it */
|
|
dev = kzalloc(sizeof(struct atp), GFP_KERNEL);
|
|
input_dev = input_allocate_device();
|
|
if (!dev || !input_dev) {
|
|
err("Out of memory");
|
|
goto err_free_devs;
|
|
}
|
|
|
|
dev->udev = udev;
|
|
dev->input = input_dev;
|
|
dev->type = id->driver_info;
|
|
dev->overflow_warned = false;
|
|
if (dev->type == ATP_FOUNTAIN || dev->type == ATP_GEYSER1)
|
|
dev->datalen = 81;
|
|
else
|
|
dev->datalen = 64;
|
|
|
|
dev->urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!dev->urb)
|
|
goto err_free_devs;
|
|
|
|
dev->data = usb_buffer_alloc(dev->udev, dev->datalen, GFP_KERNEL,
|
|
&dev->urb->transfer_dma);
|
|
if (!dev->data)
|
|
goto err_free_urb;
|
|
|
|
usb_fill_int_urb(dev->urb, udev,
|
|
usb_rcvintpipe(udev, int_in_endpointAddr),
|
|
dev->data, dev->datalen, atp_complete, dev, 1);
|
|
|
|
error = atp_handle_geyser(dev);
|
|
if (error)
|
|
goto err_free_buffer;
|
|
|
|
usb_make_path(udev, dev->phys, sizeof(dev->phys));
|
|
strlcat(dev->phys, "/input0", sizeof(dev->phys));
|
|
|
|
input_dev->name = "appletouch";
|
|
input_dev->phys = dev->phys;
|
|
usb_to_input_id(dev->udev, &input_dev->id);
|
|
input_dev->dev.parent = &iface->dev;
|
|
|
|
input_set_drvdata(input_dev, dev);
|
|
|
|
input_dev->open = atp_open;
|
|
input_dev->close = atp_close;
|
|
|
|
set_bit(EV_ABS, input_dev->evbit);
|
|
|
|
if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) {
|
|
/*
|
|
* MacBook have 20 X sensors, 10 Y sensors
|
|
*/
|
|
input_set_abs_params(input_dev, ABS_X, 0,
|
|
((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
|
|
input_set_abs_params(input_dev, ABS_Y, 0,
|
|
((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
|
|
} else if (dev->type == ATP_GEYSER2) {
|
|
/*
|
|
* Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected
|
|
* later.
|
|
*/
|
|
input_set_abs_params(input_dev, ABS_X, 0,
|
|
((15 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
|
|
input_set_abs_params(input_dev, ABS_Y, 0,
|
|
((9 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
|
|
} else {
|
|
/*
|
|
* 12" and 15" Powerbooks only have 16 x sensors,
|
|
* 17" models are detected later.
|
|
*/
|
|
input_set_abs_params(input_dev, ABS_X, 0,
|
|
(16 - 1) * ATP_XFACT - 1,
|
|
ATP_FUZZ, 0);
|
|
input_set_abs_params(input_dev, ABS_Y, 0,
|
|
(ATP_YSENSORS - 1) * ATP_YFACT - 1,
|
|
ATP_FUZZ, 0);
|
|
}
|
|
input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0);
|
|
|
|
set_bit(EV_KEY, input_dev->evbit);
|
|
set_bit(BTN_TOUCH, input_dev->keybit);
|
|
set_bit(BTN_TOOL_FINGER, input_dev->keybit);
|
|
set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
|
|
set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
|
|
set_bit(BTN_LEFT, input_dev->keybit);
|
|
|
|
error = input_register_device(dev->input);
|
|
if (error)
|
|
goto err_free_buffer;
|
|
|
|
/* save our data pointer in this interface device */
|
|
usb_set_intfdata(iface, dev);
|
|
|
|
INIT_WORK(&dev->work, atp_reinit);
|
|
|
|
return 0;
|
|
|
|
err_free_buffer:
|
|
usb_buffer_free(dev->udev, dev->datalen,
|
|
dev->data, dev->urb->transfer_dma);
|
|
err_free_urb:
|
|
usb_free_urb(dev->urb);
|
|
err_free_devs:
|
|
usb_set_intfdata(iface, NULL);
|
|
kfree(dev);
|
|
input_free_device(input_dev);
|
|
return error;
|
|
}
|
|
|
|
static void atp_disconnect(struct usb_interface *iface)
|
|
{
|
|
struct atp *dev = usb_get_intfdata(iface);
|
|
|
|
usb_set_intfdata(iface, NULL);
|
|
if (dev) {
|
|
usb_kill_urb(dev->urb);
|
|
input_unregister_device(dev->input);
|
|
usb_buffer_free(dev->udev, dev->datalen,
|
|
dev->data, dev->urb->transfer_dma);
|
|
usb_free_urb(dev->urb);
|
|
kfree(dev);
|
|
}
|
|
printk(KERN_INFO "input: appletouch disconnected\n");
|
|
}
|
|
|
|
static int atp_recover(struct atp *dev)
|
|
{
|
|
int error;
|
|
|
|
error = atp_handle_geyser(dev);
|
|
if (error)
|
|
return error;
|
|
|
|
if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int atp_suspend(struct usb_interface *iface, pm_message_t message)
|
|
{
|
|
struct atp *dev = usb_get_intfdata(iface);
|
|
|
|
usb_kill_urb(dev->urb);
|
|
dev->valid = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int atp_resume(struct usb_interface *iface)
|
|
{
|
|
struct atp *dev = usb_get_intfdata(iface);
|
|
|
|
if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int atp_reset_resume(struct usb_interface *iface)
|
|
{
|
|
struct atp *dev = usb_get_intfdata(iface);
|
|
|
|
return atp_recover(dev);
|
|
}
|
|
|
|
static struct usb_driver atp_driver = {
|
|
.name = "appletouch",
|
|
.probe = atp_probe,
|
|
.disconnect = atp_disconnect,
|
|
.suspend = atp_suspend,
|
|
.resume = atp_resume,
|
|
.reset_resume = atp_reset_resume,
|
|
.id_table = atp_table,
|
|
};
|
|
|
|
static int __init atp_init(void)
|
|
{
|
|
return usb_register(&atp_driver);
|
|
}
|
|
|
|
static void __exit atp_exit(void)
|
|
{
|
|
usb_deregister(&atp_driver);
|
|
}
|
|
|
|
module_init(atp_init);
|
|
module_exit(atp_exit);
|