Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 1 | /* |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 2 | * Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 5 | * Copyright (C) 2005-2008 Johannes Berg (johannes@sipsolutions.net) |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 6 | * Copyright (C) 2005 Stelian Pop (stelian@popies.net) |
| 7 | * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) |
| 8 | * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 9 | * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 10 | * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 11 | * Copyright (C) 2007-2008 Sven Anders (anders@anduras.de) |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 12 | * |
| 13 | * Thanks to Alex Harper <basilisk@foobox.net> for his inputs. |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | * GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
| 26 | * along with this program; if not, write to the Free Software |
| 27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 28 | * |
| 29 | */ |
| 30 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 31 | #include <linux/kernel.h> |
| 32 | #include <linux/errno.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/slab.h> |
| 35 | #include <linux/module.h> |
David Brownell | ae0dadc | 2006-06-13 10:04:34 -0700 | [diff] [blame] | 36 | #include <linux/usb/input.h> |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 37 | |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 38 | /* Type of touchpad */ |
| 39 | enum atp_touchpad_type { |
| 40 | ATP_FOUNTAIN, |
| 41 | ATP_GEYSER1, |
| 42 | ATP_GEYSER2, |
| 43 | ATP_GEYSER3, |
| 44 | ATP_GEYSER4 |
| 45 | }; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 46 | |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 47 | #define ATP_DEVICE(prod, type) \ |
| 48 | { \ |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 49 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 50 | USB_DEVICE_ID_MATCH_INT_CLASS | \ |
| 51 | USB_DEVICE_ID_MATCH_INT_PROTOCOL, \ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 52 | .idVendor = 0x05ac, /* Apple */ \ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 53 | .idProduct = (prod), \ |
| 54 | .bInterfaceClass = 0x03, \ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 55 | .bInterfaceProtocol = 0x02, \ |
| 56 | .driver_info = ATP_ ## type, \ |
| 57 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 58 | |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 59 | /* |
| 60 | * Table of devices (Product IDs) that work with this driver. |
| 61 | * (The names come from Info.plist in AppleUSBTrackpad.kext, |
| 62 | * According to Info.plist Geyser IV is the same as Geyser III.) |
| 63 | */ |
| 64 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 65 | static struct usb_device_id atp_table [] = { |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 66 | /* PowerBooks Feb 2005, iBooks G4 */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 67 | ATP_DEVICE(0x020e, FOUNTAIN), /* FOUNTAIN ANSI */ |
| 68 | ATP_DEVICE(0x020f, FOUNTAIN), /* FOUNTAIN ISO */ |
| 69 | ATP_DEVICE(0x030a, FOUNTAIN), /* FOUNTAIN TP ONLY */ |
| 70 | ATP_DEVICE(0x030b, GEYSER1), /* GEYSER 1 TP ONLY */ |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 71 | |
| 72 | /* PowerBooks Oct 2005 */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 73 | ATP_DEVICE(0x0214, GEYSER2), /* GEYSER 2 ANSI */ |
| 74 | ATP_DEVICE(0x0215, GEYSER2), /* GEYSER 2 ISO */ |
| 75 | ATP_DEVICE(0x0216, GEYSER2), /* GEYSER 2 JIS */ |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 76 | |
Julien BLACHE | 009ad0e | 2006-11-17 01:06:13 -0500 | [diff] [blame] | 77 | /* Core Duo MacBook & MacBook Pro */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 78 | ATP_DEVICE(0x0217, GEYSER3), /* GEYSER 3 ANSI */ |
| 79 | ATP_DEVICE(0x0218, GEYSER3), /* GEYSER 3 ISO */ |
| 80 | ATP_DEVICE(0x0219, GEYSER3), /* GEYSER 3 JIS */ |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 81 | |
Julien BLACHE | 009ad0e | 2006-11-17 01:06:13 -0500 | [diff] [blame] | 82 | /* Core2 Duo MacBook & MacBook Pro */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 83 | ATP_DEVICE(0x021a, GEYSER4), /* GEYSER 4 ANSI */ |
| 84 | ATP_DEVICE(0x021b, GEYSER4), /* GEYSER 4 ISO */ |
| 85 | ATP_DEVICE(0x021c, GEYSER4), /* GEYSER 4 JIS */ |
Julien BLACHE | 009ad0e | 2006-11-17 01:06:13 -0500 | [diff] [blame] | 86 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 87 | /* Core2 Duo MacBook3,1 */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 88 | ATP_DEVICE(0x0229, GEYSER4), /* GEYSER 4 HF ANSI */ |
| 89 | ATP_DEVICE(0x022a, GEYSER4), /* GEYSER 4 HF ISO */ |
| 90 | ATP_DEVICE(0x022b, GEYSER4), /* GEYSER 4 HF JIS */ |
Tobias Mueller | 0035a1d | 2008-04-02 10:02:06 -0400 | [diff] [blame] | 91 | |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 92 | /* Terminating entry */ |
| 93 | { } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 94 | }; |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 95 | MODULE_DEVICE_TABLE(usb, atp_table); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 96 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 97 | /* |
| 98 | * number of sensors. Note that only 16 instead of 26 X (horizontal) |
| 99 | * sensors exist on 12" and 15" PowerBooks. All models have 16 Y |
| 100 | * (vertical) sensors. |
| 101 | */ |
| 102 | #define ATP_XSENSORS 26 |
| 103 | #define ATP_YSENSORS 16 |
| 104 | |
| 105 | /* amount of fuzz this touchpad generates */ |
| 106 | #define ATP_FUZZ 16 |
| 107 | |
| 108 | /* maximum pressure this driver will report */ |
| 109 | #define ATP_PRESSURE 300 |
| 110 | /* |
| 111 | * multiplication factor for the X and Y coordinates. |
| 112 | * We try to keep the touchpad aspect ratio while still doing only simple |
| 113 | * arithmetics. |
| 114 | * The factors below give coordinates like: |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 115 | * |
| 116 | * 0 <= x < 960 on 12" and 15" Powerbooks |
| 117 | * 0 <= x < 1600 on 17" Powerbooks and 17" MacBook Pro |
| 118 | * 0 <= x < 1216 on MacBooks and 15" MacBook Pro |
| 119 | * |
| 120 | * 0 <= y < 646 on all Powerbooks |
| 121 | * 0 <= y < 774 on all MacBooks |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 122 | */ |
| 123 | #define ATP_XFACT 64 |
| 124 | #define ATP_YFACT 43 |
| 125 | |
| 126 | /* |
| 127 | * Threshold for the touchpad sensors. Any change less than ATP_THRESHOLD is |
| 128 | * ignored. |
| 129 | */ |
| 130 | #define ATP_THRESHOLD 5 |
| 131 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 132 | /* Geyser initialization constants */ |
| 133 | #define ATP_GEYSER_MODE_READ_REQUEST_ID 1 |
| 134 | #define ATP_GEYSER_MODE_WRITE_REQUEST_ID 9 |
| 135 | #define ATP_GEYSER_MODE_REQUEST_VALUE 0x300 |
| 136 | #define ATP_GEYSER_MODE_REQUEST_INDEX 0 |
| 137 | #define ATP_GEYSER_MODE_VENDOR_VALUE 0x04 |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 138 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 139 | /* Structure to hold all of our device specific stuff */ |
| 140 | struct atp { |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 141 | char phys[64]; |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 142 | struct usb_device *udev; /* usb device */ |
| 143 | struct urb *urb; /* usb request block */ |
| 144 | signed char *data; /* transferred data */ |
| 145 | struct input_dev *input; /* input dev */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 146 | enum atp_touchpad_type type; /* type of touchpad */ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 147 | bool open; |
| 148 | bool valid; /* are the samples valid? */ |
| 149 | bool size_detect_done; |
| 150 | bool overflow_warned; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 151 | int x_old; /* last reported x/y, */ |
| 152 | int y_old; /* used for smoothing */ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 153 | signed char xy_cur[ATP_XSENSORS + ATP_YSENSORS]; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 154 | signed char xy_old[ATP_XSENSORS + ATP_YSENSORS]; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 155 | int xy_acc[ATP_XSENSORS + ATP_YSENSORS]; |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 156 | int datalen; /* size of USB transfer */ |
| 157 | int idlecount; /* number of empty packets */ |
| 158 | struct work_struct work; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 159 | }; |
| 160 | |
| 161 | #define dbg_dump(msg, tab) \ |
| 162 | if (debug > 1) { \ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 163 | int __i; \ |
| 164 | printk(KERN_DEBUG "appletouch: %s", msg); \ |
| 165 | for (__i = 0; __i < ATP_XSENSORS + ATP_YSENSORS; __i++) \ |
| 166 | printk(" %02x", tab[__i]); \ |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 167 | printk("\n"); \ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 168 | } |
| 169 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 170 | #define dprintk(format, a...) \ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 171 | do { \ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 172 | if (debug) \ |
| 173 | printk(KERN_DEBUG format, ##a); \ |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 174 | } while (0) |
| 175 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 176 | MODULE_AUTHOR("Johannes Berg"); |
| 177 | MODULE_AUTHOR("Stelian Pop"); |
| 178 | MODULE_AUTHOR("Frank Arnold"); |
| 179 | MODULE_AUTHOR("Michael Hanselmann"); |
| 180 | MODULE_AUTHOR("Sven Anders"); |
| 181 | MODULE_DESCRIPTION("Apple PowerBook and MacBook USB touchpad driver"); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 182 | MODULE_LICENSE("GPL"); |
| 183 | |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 184 | /* |
| 185 | * Make the threshold a module parameter |
| 186 | */ |
| 187 | static int threshold = ATP_THRESHOLD; |
| 188 | module_param(threshold, int, 0644); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 189 | MODULE_PARM_DESC(threshold, "Discard any change in data from a sensor" |
| 190 | " (the trackpad has many of these sensors)" |
| 191 | " less than this value."); |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 192 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 193 | static int debug; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 194 | module_param(debug, int, 0644); |
| 195 | MODULE_PARM_DESC(debug, "Activate debugging output"); |
| 196 | |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 197 | /* |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 198 | * By default newer Geyser devices send standard USB HID mouse |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 199 | * packets (Report ID 2). This code changes device mode, so it |
| 200 | * sends raw sensor reports (Report ID 5). |
| 201 | */ |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 202 | static int atp_geyser_init(struct usb_device *udev) |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 203 | { |
| 204 | char data[8]; |
| 205 | int size; |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 206 | int i; |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 207 | |
| 208 | size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 209 | ATP_GEYSER_MODE_READ_REQUEST_ID, |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 210 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 211 | ATP_GEYSER_MODE_REQUEST_VALUE, |
| 212 | ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 213 | |
| 214 | if (size != 8) { |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 215 | dprintk("atp_geyser_init: read error\n"); |
| 216 | for (i = 0; i < 8; i++) |
| 217 | dprintk("appletouch[%d]: %d\n", i, data[i]); |
| 218 | |
| 219 | err("Failed to read mode from device."); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 220 | return -EIO; |
| 221 | } |
| 222 | |
| 223 | /* Apply the mode switch */ |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 224 | data[0] = ATP_GEYSER_MODE_VENDOR_VALUE; |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 225 | |
| 226 | size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 227 | ATP_GEYSER_MODE_WRITE_REQUEST_ID, |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 228 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 229 | ATP_GEYSER_MODE_REQUEST_VALUE, |
| 230 | ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 231 | |
| 232 | if (size != 8) { |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 233 | dprintk("atp_geyser_init: write error\n"); |
| 234 | for (i = 0; i < 8; i++) |
| 235 | dprintk("appletouch[%d]: %d\n", i, data[i]); |
| 236 | |
| 237 | err("Failed to request geyser raw mode"); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 238 | return -EIO; |
| 239 | } |
| 240 | return 0; |
| 241 | } |
| 242 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 243 | /* |
| 244 | * Reinitialise the device. This usually stops stream of empty packets |
| 245 | * coming from it. |
| 246 | */ |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 247 | static void atp_reinit(struct work_struct *work) |
| 248 | { |
| 249 | struct atp *dev = container_of(work, struct atp, work); |
| 250 | struct usb_device *udev = dev->udev; |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 251 | int retval; |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 252 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 253 | dprintk("appletouch: putting appletouch to sleep (reinit)\n"); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 254 | dev->idlecount = 0; |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 255 | |
| 256 | atp_geyser_init(udev); |
| 257 | |
| 258 | retval = usb_submit_urb(dev->urb, GFP_ATOMIC); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 259 | if (retval) |
| 260 | err("atp_reinit: usb_submit_urb failed with error %d", |
| 261 | retval); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 262 | } |
| 263 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 264 | static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact, |
| 265 | int *z, int *fingers) |
| 266 | { |
| 267 | int i; |
| 268 | /* values to calculate mean */ |
| 269 | int pcum = 0, psum = 0; |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 270 | int is_increasing = 0; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 271 | |
| 272 | *fingers = 0; |
| 273 | |
| 274 | for (i = 0; i < nb_sensors; i++) { |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 275 | if (xy_sensors[i] < threshold) { |
| 276 | if (is_increasing) |
| 277 | is_increasing = 0; |
| 278 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 279 | continue; |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | /* |
| 283 | * Makes the finger detection more versatile. For example, |
| 284 | * two fingers with no gap will be detected. Also, my |
| 285 | * tests show it less likely to have intermittent loss |
| 286 | * of multiple finger readings while moving around (scrolling). |
| 287 | * |
| 288 | * Changes the multiple finger detection to counting humps on |
| 289 | * sensors (transitions from nonincreasing to increasing) |
| 290 | * instead of counting transitions from low sensors (no |
| 291 | * finger reading) to high sensors (finger above |
| 292 | * sensor) |
| 293 | * |
| 294 | * - Jason Parekh <jasonparekh@gmail.com> |
| 295 | */ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 296 | if (i < 1 || |
| 297 | (!is_increasing && xy_sensors[i - 1] < xy_sensors[i])) { |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 298 | (*fingers)++; |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 299 | is_increasing = 1; |
| 300 | } else if (i > 0 && xy_sensors[i - 1] >= xy_sensors[i]) { |
| 301 | is_increasing = 0; |
| 302 | } |
| 303 | |
| 304 | /* |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 305 | * Subtracts threshold so a high sensor that just passes the |
| 306 | * threshold won't skew the calculated absolute coordinate. |
| 307 | * Fixes an issue where slowly moving the mouse would |
| 308 | * occasionally jump a number of pixels (slowly moving the |
| 309 | * finger makes this issue most apparent.) |
Jason Parekh | 00081d3 | 2006-11-17 01:05:58 -0500 | [diff] [blame] | 310 | */ |
| 311 | pcum += (xy_sensors[i] - threshold) * i; |
| 312 | psum += (xy_sensors[i] - threshold); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | if (psum > 0) { |
| 316 | *z = psum; |
| 317 | return pcum * fact / psum; |
| 318 | } |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | |
| 323 | static inline void atp_report_fingers(struct input_dev *input, int fingers) |
| 324 | { |
| 325 | input_report_key(input, BTN_TOOL_FINGER, fingers == 1); |
| 326 | input_report_key(input, BTN_TOOL_DOUBLETAP, fingers == 2); |
| 327 | input_report_key(input, BTN_TOOL_TRIPLETAP, fingers > 2); |
| 328 | } |
| 329 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 330 | static void atp_complete(struct urb *urb) |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 331 | { |
| 332 | int x, y, x_z, y_z, x_f, y_f; |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 333 | int retval, i, j; |
Thomas Rohwer | cb56073 | 2007-09-25 00:06:25 -0400 | [diff] [blame] | 334 | int key; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 335 | struct atp *dev = urb->context; |
| 336 | |
| 337 | switch (urb->status) { |
| 338 | case 0: |
| 339 | /* success */ |
| 340 | break; |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 341 | case -EOVERFLOW: |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 342 | if (!dev->overflow_warned) { |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 343 | printk(KERN_WARNING "appletouch: OVERFLOW with data " |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 344 | "length %d, actual length is %d\n", |
| 345 | dev->datalen, dev->urb->actual_length); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 346 | dev->overflow_warned = true; |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 347 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 348 | case -ECONNRESET: |
| 349 | case -ENOENT: |
| 350 | case -ESHUTDOWN: |
| 351 | /* This urb is terminated, clean up */ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 352 | dbg("atp_complete: urb shutting down with status: %d", |
| 353 | urb->status); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 354 | return; |
| 355 | default: |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 356 | dbg("atp_complete: nonzero urb status received: %d", |
| 357 | urb->status); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 358 | goto exit; |
| 359 | } |
| 360 | |
| 361 | /* drop incomplete datasets */ |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 362 | if (dev->urb->actual_length != dev->datalen) { |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 363 | dprintk("appletouch: incomplete data package" |
| 364 | " (first byte: %d, length: %d).\n", |
| 365 | dev->data[0], dev->urb->actual_length); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 366 | goto exit; |
| 367 | } |
| 368 | |
| 369 | /* reorder the sensors values */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 370 | if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) { |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 371 | memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); |
| 372 | |
| 373 | /* |
| 374 | * The values are laid out like this: |
| 375 | * -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ... |
| 376 | * '-' is an unused value. |
| 377 | */ |
| 378 | |
| 379 | /* read X values */ |
| 380 | for (i = 0, j = 19; i < 20; i += 2, j += 3) { |
| 381 | dev->xy_cur[i] = dev->data[j + 1]; |
| 382 | dev->xy_cur[i + 1] = dev->data[j + 2]; |
| 383 | } |
| 384 | /* read Y values */ |
| 385 | for (i = 0, j = 1; i < 9; i += 2, j += 3) { |
| 386 | dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1]; |
| 387 | dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2]; |
| 388 | } |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 389 | } else if (dev->type == ATP_GEYSER2) { |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 390 | memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 391 | |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 392 | /* |
| 393 | * The values are laid out like this: |
| 394 | * Y1, Y2, -, Y3, Y4, -, ..., X1, X2, -, X3, X4, -, ... |
| 395 | * '-' is an unused value. |
| 396 | */ |
| 397 | |
| 398 | /* read X values */ |
| 399 | for (i = 0, j = 19; i < 20; i += 2, j += 3) { |
| 400 | dev->xy_cur[i] = dev->data[j]; |
| 401 | dev->xy_cur[i + 1] = dev->data[j + 1]; |
| 402 | } |
| 403 | |
| 404 | /* read Y values */ |
| 405 | for (i = 0, j = 1; i < 9; i += 2, j += 3) { |
| 406 | dev->xy_cur[ATP_XSENSORS + i] = dev->data[j]; |
| 407 | dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 1]; |
| 408 | } |
| 409 | } else { |
| 410 | for (i = 0; i < 8; i++) { |
| 411 | /* X values */ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 412 | dev->xy_cur[i + 0] = dev->data[5 * i + 2]; |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 413 | dev->xy_cur[i + 8] = dev->data[5 * i + 4]; |
| 414 | dev->xy_cur[i + 16] = dev->data[5 * i + 42]; |
| 415 | if (i < 2) |
| 416 | dev->xy_cur[i + 24] = dev->data[5 * i + 44]; |
| 417 | |
| 418 | /* Y values */ |
| 419 | dev->xy_cur[i + 26] = dev->data[5 * i + 1]; |
| 420 | dev->xy_cur[i + 34] = dev->data[5 * i + 3]; |
| 421 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | dbg_dump("sample", dev->xy_cur); |
| 425 | |
| 426 | if (!dev->valid) { |
| 427 | /* first sample */ |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 428 | dev->valid = true; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 429 | dev->x_old = dev->y_old = -1; |
| 430 | memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old)); |
| 431 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 432 | if (dev->size_detect_done || |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 433 | dev->type == ATP_GEYSER3) /* No 17" Macbooks (yet) */ |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 434 | goto exit; |
| 435 | |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 436 | /* 17" Powerbooks have extra X sensors */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 437 | for (i = (dev->type == ATP_GEYSER2 ? 15 : 16); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 438 | i < ATP_XSENSORS; i++) { |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 439 | if (!dev->xy_cur[i]) |
| 440 | continue; |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 441 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 442 | printk(KERN_INFO "appletouch: 17\" model detected.\n"); |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 443 | if (dev->type == ATP_GEYSER2) |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 444 | input_set_abs_params(dev->input, ABS_X, 0, |
| 445 | (20 - 1) * |
| 446 | ATP_XFACT - 1, |
| 447 | ATP_FUZZ, 0); |
| 448 | else |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 449 | input_set_abs_params(dev->input, ABS_X, 0, |
| 450 | (ATP_XSENSORS - 1) * |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 451 | ATP_XFACT - 1, |
| 452 | ATP_FUZZ, 0); |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 453 | break; |
| 454 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 455 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 456 | dev->size_detect_done = 1; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 457 | goto exit; |
| 458 | } |
| 459 | |
| 460 | for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) { |
| 461 | /* accumulate the change */ |
| 462 | signed char change = dev->xy_old[i] - dev->xy_cur[i]; |
| 463 | dev->xy_acc[i] -= change; |
| 464 | |
| 465 | /* prevent down drifting */ |
| 466 | if (dev->xy_acc[i] < 0) |
| 467 | dev->xy_acc[i] = 0; |
| 468 | } |
| 469 | |
| 470 | memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old)); |
| 471 | |
| 472 | dbg_dump("accumulator", dev->xy_acc); |
| 473 | |
| 474 | x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS, |
| 475 | ATP_XFACT, &x_z, &x_f); |
| 476 | y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS, |
| 477 | ATP_YFACT, &y_z, &y_f); |
Thomas Rohwer | cb56073 | 2007-09-25 00:06:25 -0400 | [diff] [blame] | 478 | key = dev->data[dev->datalen - 1] & 1; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 479 | |
| 480 | if (x && y) { |
| 481 | if (dev->x_old != -1) { |
| 482 | x = (dev->x_old * 3 + x) >> 2; |
| 483 | y = (dev->y_old * 3 + y) >> 2; |
| 484 | dev->x_old = x; |
| 485 | dev->y_old = y; |
| 486 | |
| 487 | if (debug > 1) |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 488 | printk(KERN_DEBUG "appletouch: X: %3d Y: %3d " |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 489 | "Xz: %3d Yz: %3d\n", |
| 490 | x, y, x_z, y_z); |
| 491 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 492 | input_report_key(dev->input, BTN_TOUCH, 1); |
| 493 | input_report_abs(dev->input, ABS_X, x); |
| 494 | input_report_abs(dev->input, ABS_Y, y); |
| 495 | input_report_abs(dev->input, ABS_PRESSURE, |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 496 | min(ATP_PRESSURE, x_z + y_z)); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 497 | atp_report_fingers(dev->input, max(x_f, y_f)); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 498 | } |
| 499 | dev->x_old = x; |
| 500 | dev->y_old = y; |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 501 | |
| 502 | } else if (!x && !y) { |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 503 | |
| 504 | dev->x_old = dev->y_old = -1; |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 505 | input_report_key(dev->input, BTN_TOUCH, 0); |
| 506 | input_report_abs(dev->input, ABS_PRESSURE, 0); |
| 507 | atp_report_fingers(dev->input, 0); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 508 | |
| 509 | /* reset the accumulator on release */ |
| 510 | memset(dev->xy_acc, 0, sizeof(dev->xy_acc)); |
Soeren Sonnenburg | 937ad5c | 2007-10-13 00:31:15 -0400 | [diff] [blame] | 511 | } |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 512 | |
Anton Ekblad | 46249ea | 2007-10-22 00:59:59 -0400 | [diff] [blame] | 513 | input_report_key(dev->input, BTN_LEFT, key); |
| 514 | input_sync(dev->input); |
| 515 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 516 | /* |
| 517 | * Many Geysers will continue to send packets continually after |
| 518 | * the first touch unless reinitialised. Do so if it's been |
| 519 | * idle for a while in order to avoid waking the kernel up |
| 520 | * several hundred times a second. Re-initialization does not |
| 521 | * work on Fountain touchpads. |
| 522 | */ |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 523 | if (dev->type != ATP_FOUNTAIN) { |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 524 | /* |
| 525 | * Button must not be pressed when entering suspend, |
| 526 | * otherwise we will never release the button. |
| 527 | */ |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 528 | if (!x && !y && !key) { |
| 529 | dev->idlecount++; |
| 530 | if (dev->idlecount == 10) { |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 531 | dev->valid = false; |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 532 | schedule_work(&dev->work); |
| 533 | /* Don't resubmit urb here, wait for reinit */ |
| 534 | return; |
| 535 | } |
| 536 | } else |
| 537 | dev->idlecount = 0; |
| 538 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 539 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 540 | exit: |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 541 | retval = usb_submit_urb(dev->urb, GFP_ATOMIC); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 542 | if (retval) |
| 543 | err("atp_complete: usb_submit_urb failed with result %d", |
| 544 | retval); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | static int atp_open(struct input_dev *input) |
| 548 | { |
Dmitry Torokhov | 7791bda | 2007-04-12 01:34:39 -0400 | [diff] [blame] | 549 | struct atp *dev = input_get_drvdata(input); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 550 | |
| 551 | if (usb_submit_urb(dev->urb, GFP_ATOMIC)) |
| 552 | return -EIO; |
| 553 | |
| 554 | dev->open = 1; |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | static void atp_close(struct input_dev *input) |
| 559 | { |
Dmitry Torokhov | 7791bda | 2007-04-12 01:34:39 -0400 | [diff] [blame] | 560 | struct atp *dev = input_get_drvdata(input); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 561 | |
| 562 | usb_kill_urb(dev->urb); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 563 | cancel_work_sync(&dev->work); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 564 | dev->open = 0; |
| 565 | } |
| 566 | |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 567 | static int atp_probe(struct usb_interface *iface, |
| 568 | const struct usb_device_id *id) |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 569 | { |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 570 | struct atp *dev; |
| 571 | struct input_dev *input_dev; |
| 572 | struct usb_device *udev = interface_to_usbdev(iface); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 573 | struct usb_host_interface *iface_desc; |
| 574 | struct usb_endpoint_descriptor *endpoint; |
| 575 | int int_in_endpointAddr = 0; |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 576 | int i, error = -ENOMEM; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 577 | |
| 578 | /* set up the endpoint information */ |
| 579 | /* use only the first interrupt-in endpoint */ |
| 580 | iface_desc = iface->cur_altsetting; |
| 581 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { |
| 582 | endpoint = &iface_desc->endpoint[i].desc; |
Luiz Fernando N. Capitulino | 97b107c | 2006-09-27 11:58:53 -0700 | [diff] [blame] | 583 | if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) { |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 584 | /* we found an interrupt in endpoint */ |
| 585 | int_in_endpointAddr = endpoint->bEndpointAddress; |
| 586 | break; |
| 587 | } |
| 588 | } |
| 589 | if (!int_in_endpointAddr) { |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 590 | err("Could not find int-in endpoint"); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 591 | return -EIO; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 592 | } |
| 593 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 594 | /* allocate memory for our device state and initialize it */ |
| 595 | dev = kzalloc(sizeof(struct atp), GFP_KERNEL); |
| 596 | input_dev = input_allocate_device(); |
| 597 | if (!dev || !input_dev) { |
| 598 | err("Out of memory"); |
| 599 | goto err_free_devs; |
| 600 | } |
| 601 | |
| 602 | dev->udev = udev; |
| 603 | dev->input = input_dev; |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 604 | dev->type = id->driver_info; |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 605 | dev->overflow_warned = false; |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 606 | if (dev->type == ATP_FOUNTAIN || dev->type == ATP_GEYSER1) |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 607 | dev->datalen = 81; |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 608 | else |
| 609 | dev->datalen = 64; |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 610 | |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 611 | if (dev->type != ATP_FOUNTAIN) { |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 612 | /* switch to raw sensor mode */ |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 613 | if (atp_geyser_init(udev)) |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 614 | goto err_free_devs; |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 615 | |
Dmitry Torokhov | 2a3e480 | 2007-11-01 22:13:32 -0400 | [diff] [blame] | 616 | printk(KERN_INFO "appletouch: Geyser mode initialized.\n"); |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 617 | } |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 618 | |
| 619 | dev->urb = usb_alloc_urb(0, GFP_KERNEL); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 620 | if (!dev->urb) |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 621 | goto err_free_devs; |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 622 | |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 623 | dev->data = usb_buffer_alloc(dev->udev, dev->datalen, GFP_KERNEL, |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 624 | &dev->urb->transfer_dma); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 625 | if (!dev->data) |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 626 | goto err_free_urb; |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 627 | |
| 628 | usb_fill_int_urb(dev->urb, udev, |
| 629 | usb_rcvintpipe(udev, int_in_endpointAddr), |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 630 | dev->data, dev->datalen, atp_complete, dev, 1); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 631 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 632 | usb_make_path(udev, dev->phys, sizeof(dev->phys)); |
| 633 | strlcat(dev->phys, "/input0", sizeof(dev->phys)); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 634 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 635 | input_dev->name = "appletouch"; |
| 636 | input_dev->phys = dev->phys; |
| 637 | usb_to_input_id(dev->udev, &input_dev->id); |
Dmitry Torokhov | c0f82d5 | 2007-04-12 01:35:03 -0400 | [diff] [blame] | 638 | input_dev->dev.parent = &iface->dev; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 639 | |
Dmitry Torokhov | 7791bda | 2007-04-12 01:34:39 -0400 | [diff] [blame] | 640 | input_set_drvdata(input_dev, dev); |
| 641 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 642 | input_dev->open = atp_open; |
| 643 | input_dev->close = atp_close; |
| 644 | |
| 645 | set_bit(EV_ABS, input_dev->evbit); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 646 | |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 647 | if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) { |
Nicolas Boichat | 9effa97 | 2006-04-19 23:36:40 +0200 | [diff] [blame] | 648 | /* |
| 649 | * MacBook have 20 X sensors, 10 Y sensors |
| 650 | */ |
| 651 | input_set_abs_params(input_dev, ABS_X, 0, |
| 652 | ((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0); |
| 653 | input_set_abs_params(input_dev, ABS_Y, 0, |
| 654 | ((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0); |
Sven Anders | e9542df | 2008-05-05 23:57:10 -0400 | [diff] [blame^] | 655 | } else if (dev->type == ATP_GEYSER2) { |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 656 | /* |
| 657 | * Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected |
| 658 | * later. |
| 659 | */ |
| 660 | input_set_abs_params(input_dev, ABS_X, 0, |
| 661 | ((15 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0); |
| 662 | input_set_abs_params(input_dev, ABS_Y, 0, |
| 663 | ((9 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0); |
| 664 | } else { |
| 665 | /* |
| 666 | * 12" and 15" Powerbooks only have 16 x sensors, |
| 667 | * 17" models are detected later. |
| 668 | */ |
| 669 | input_set_abs_params(input_dev, ABS_X, 0, |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 670 | (16 - 1) * ATP_XFACT - 1, |
| 671 | ATP_FUZZ, 0); |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 672 | input_set_abs_params(input_dev, ABS_Y, 0, |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 673 | (ATP_YSENSORS - 1) * ATP_YFACT - 1, |
| 674 | ATP_FUZZ, 0); |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 675 | } |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 676 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 677 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 678 | set_bit(EV_KEY, input_dev->evbit); |
| 679 | set_bit(BTN_TOUCH, input_dev->keybit); |
| 680 | set_bit(BTN_TOOL_FINGER, input_dev->keybit); |
| 681 | set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); |
| 682 | set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit); |
| 683 | set_bit(BTN_LEFT, input_dev->keybit); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 684 | |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 685 | error = input_register_device(dev->input); |
| 686 | if (error) |
| 687 | goto err_free_buffer; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 688 | |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 689 | /* save our data pointer in this interface device */ |
| 690 | usb_set_intfdata(iface, dev); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 691 | |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 692 | INIT_WORK(&dev->work, atp_reinit); |
| 693 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 694 | return 0; |
| 695 | |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 696 | err_free_buffer: |
| 697 | usb_buffer_free(dev->udev, dev->datalen, |
| 698 | dev->data, dev->urb->transfer_dma); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 699 | err_free_urb: |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 700 | usb_free_urb(dev->urb); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 701 | err_free_devs: |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 702 | usb_set_intfdata(iface, NULL); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 703 | kfree(dev); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 704 | input_free_device(input_dev); |
Dmitry Torokhov | 5014186 | 2007-04-12 01:33:39 -0400 | [diff] [blame] | 705 | return error; |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 706 | } |
| 707 | |
| 708 | static void atp_disconnect(struct usb_interface *iface) |
| 709 | { |
| 710 | struct atp *dev = usb_get_intfdata(iface); |
| 711 | |
| 712 | usb_set_intfdata(iface, NULL); |
| 713 | if (dev) { |
| 714 | usb_kill_urb(dev->urb); |
Dmitry Torokhov | c5b7c7c | 2005-09-15 02:01:47 -0500 | [diff] [blame] | 715 | input_unregister_device(dev->input); |
Michael Hanselmann | e1e02c9 | 2005-12-21 00:50:23 -0500 | [diff] [blame] | 716 | usb_buffer_free(dev->udev, dev->datalen, |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 717 | dev->data, dev->urb->transfer_dma); |
Johannes Berg | 7af569a | 2006-07-19 15:39:46 +0200 | [diff] [blame] | 718 | usb_free_urb(dev->urb); |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 719 | kfree(dev); |
| 720 | } |
| 721 | printk(KERN_INFO "input: appletouch disconnected\n"); |
| 722 | } |
| 723 | |
| 724 | static int atp_suspend(struct usb_interface *iface, pm_message_t message) |
| 725 | { |
| 726 | struct atp *dev = usb_get_intfdata(iface); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 727 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 728 | usb_kill_urb(dev->urb); |
Johannes Berg | 7dce869 | 2008-05-05 23:56:55 -0400 | [diff] [blame] | 729 | dev->valid = false; |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 730 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 731 | return 0; |
| 732 | } |
| 733 | |
| 734 | static int atp_resume(struct usb_interface *iface) |
| 735 | { |
| 736 | struct atp *dev = usb_get_intfdata(iface); |
Soeren Sonnenburg | 5a6eb67 | 2007-07-20 00:29:32 -0400 | [diff] [blame] | 737 | |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 738 | if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC)) |
| 739 | return -EIO; |
| 740 | |
| 741 | return 0; |
| 742 | } |
| 743 | |
| 744 | static struct usb_driver atp_driver = { |
Stelian Pop | f7214ff | 2005-09-08 10:19:48 +0200 | [diff] [blame] | 745 | .name = "appletouch", |
| 746 | .probe = atp_probe, |
| 747 | .disconnect = atp_disconnect, |
| 748 | .suspend = atp_suspend, |
| 749 | .resume = atp_resume, |
| 750 | .id_table = atp_table, |
| 751 | }; |
| 752 | |
| 753 | static int __init atp_init(void) |
| 754 | { |
| 755 | return usb_register(&atp_driver); |
| 756 | } |
| 757 | |
| 758 | static void __exit atp_exit(void) |
| 759 | { |
| 760 | usb_deregister(&atp_driver); |
| 761 | } |
| 762 | |
| 763 | module_init(atp_init); |
| 764 | module_exit(atp_exit); |