1f89bd95cSHenrik Rydberg /* 2f89bd95cSHenrik Rydberg * Apple USB BCM5974 (Macbook Air and Penryn Macbook Pro) multitouch driver 3f89bd95cSHenrik Rydberg * 4f89bd95cSHenrik Rydberg * Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se) 5f89bd95cSHenrik Rydberg * 6f89bd95cSHenrik Rydberg * The USB initialization and package decoding was made by 7f89bd95cSHenrik Rydberg * Scott Shawcroft as part of the touchd user-space driver project: 8f89bd95cSHenrik Rydberg * Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com) 9f89bd95cSHenrik Rydberg * 10f89bd95cSHenrik Rydberg * The BCM5974 driver is based on the appletouch driver: 11f89bd95cSHenrik Rydberg * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) 12f89bd95cSHenrik Rydberg * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) 13f89bd95cSHenrik Rydberg * Copyright (C) 2005 Stelian Pop (stelian@popies.net) 14f89bd95cSHenrik Rydberg * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) 15f89bd95cSHenrik Rydberg * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) 16f89bd95cSHenrik Rydberg * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) 17f89bd95cSHenrik Rydberg * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) 18f89bd95cSHenrik Rydberg * 19f89bd95cSHenrik Rydberg * This program is free software; you can redistribute it and/or modify 20f89bd95cSHenrik Rydberg * it under the terms of the GNU General Public License as published by 21f89bd95cSHenrik Rydberg * the Free Software Foundation; either version 2 of the License, or 22f89bd95cSHenrik Rydberg * (at your option) any later version. 23f89bd95cSHenrik Rydberg * 24f89bd95cSHenrik Rydberg * This program is distributed in the hope that it will be useful, 25f89bd95cSHenrik Rydberg * but WITHOUT ANY WARRANTY; without even the implied warranty of 26f89bd95cSHenrik Rydberg * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27f89bd95cSHenrik Rydberg * GNU General Public License for more details. 28f89bd95cSHenrik Rydberg * 29f89bd95cSHenrik Rydberg * You should have received a copy of the GNU General Public License 30f89bd95cSHenrik Rydberg * along with this program; if not, write to the Free Software 31f89bd95cSHenrik Rydberg * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 32f89bd95cSHenrik Rydberg * 33f89bd95cSHenrik Rydberg */ 34f89bd95cSHenrik Rydberg 35f89bd95cSHenrik Rydberg #include <linux/kernel.h> 36f89bd95cSHenrik Rydberg #include <linux/errno.h> 37f89bd95cSHenrik Rydberg #include <linux/init.h> 38f89bd95cSHenrik Rydberg #include <linux/slab.h> 39f89bd95cSHenrik Rydberg #include <linux/module.h> 40f89bd95cSHenrik Rydberg #include <linux/usb/input.h> 41f89bd95cSHenrik Rydberg #include <linux/hid.h> 42f89bd95cSHenrik Rydberg #include <linux/mutex.h> 43*51c80b74SHenrik Rydberg #include <linux/input/mt.h> 44f89bd95cSHenrik Rydberg 45f89bd95cSHenrik Rydberg #define USB_VENDOR_ID_APPLE 0x05ac 46f89bd95cSHenrik Rydberg 47f89bd95cSHenrik Rydberg /* MacbookAir, aka wellspring */ 48f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223 49f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224 50f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225 51f89bd95cSHenrik Rydberg /* MacbookProPenryn, aka wellspring2 */ 52f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230 53f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231 54f89bd95cSHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232 55158e9287SHenrik Rydberg /* Macbook5,1 (unibody), aka wellspring3 */ 56158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236 57158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237 58158e9287SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238 596021afcfSEdgar (gimli) Hucek /* MacbookAir3,2 (unibody), aka wellspring5 */ 606021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI 0x023f 616021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_ISO 0x0240 626021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4_JIS 0x0241 636021afcfSEdgar (gimli) Hucek /* MacbookAir3,1 (unibody), aka wellspring4 */ 646021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI 0x0242 656021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO 0x0243 666021afcfSEdgar (gimli) Hucek #define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS 0x0244 6747340bd9SAndy Botting /* Macbook8 (unibody, March 2011) */ 6847340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI 0x0245 6947340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO 0x0246 7047340bd9SAndy Botting #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS 0x0247 711c601beaSPieter-Augustijn Van Malleghem /* MacbookAir4,1 (unibody, July 2011) */ 721c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249 731c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a 741c601beaSPieter-Augustijn Van Malleghem #define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b 75db0b34b0SJoshua V. Dillon /* MacbookAir4,2 (unibody, July 2011) */ 76db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI 0x024c 77db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO 0x024d 78db0b34b0SJoshua V. Dillon #define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS 0x024e 79c331eb58SAndrew Drake /* Macbook8,2 (unibody) */ 80c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252 81c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253 82c331eb58SAndrew Drake #define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254 833dde22a9SHenrik Rydberg /* MacbookPro10,1 (unibody, June 2012) */ 843dde22a9SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI 0x0262 853dde22a9SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING7_ISO 0x0263 863dde22a9SHenrik Rydberg #define USB_DEVICE_ID_APPLE_WELLSPRING7_JIS 0x0264 87f89bd95cSHenrik Rydberg 88f89bd95cSHenrik Rydberg #define BCM5974_DEVICE(prod) { \ 89f89bd95cSHenrik Rydberg .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ 90f89bd95cSHenrik Rydberg USB_DEVICE_ID_MATCH_INT_CLASS | \ 91f89bd95cSHenrik Rydberg USB_DEVICE_ID_MATCH_INT_PROTOCOL), \ 92f89bd95cSHenrik Rydberg .idVendor = USB_VENDOR_ID_APPLE, \ 93f89bd95cSHenrik Rydberg .idProduct = (prod), \ 94f89bd95cSHenrik Rydberg .bInterfaceClass = USB_INTERFACE_CLASS_HID, \ 95f89bd95cSHenrik Rydberg .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \ 96f89bd95cSHenrik Rydberg } 97f89bd95cSHenrik Rydberg 98f89bd95cSHenrik Rydberg /* table of devices that work with this driver */ 99f89bd95cSHenrik Rydberg static const struct usb_device_id bcm5974_table[] = { 100f89bd95cSHenrik Rydberg /* MacbookAir1.1 */ 101f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), 102f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO), 103f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS), 104f89bd95cSHenrik Rydberg /* MacbookProPenryn */ 105f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI), 106f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO), 107f89bd95cSHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS), 108158e9287SHenrik Rydberg /* Macbook5,1 */ 109158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI), 110158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO), 111158e9287SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS), 1126021afcfSEdgar (gimli) Hucek /* MacbookAir3,2 */ 1136021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI), 1146021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO), 1156021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS), 1166021afcfSEdgar (gimli) Hucek /* MacbookAir3,1 */ 1176021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI), 1186021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO), 1196021afcfSEdgar (gimli) Hucek BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS), 12047340bd9SAndy Botting /* MacbookPro8 */ 12147340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI), 12247340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO), 12347340bd9SAndy Botting BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS), 1241c601beaSPieter-Augustijn Van Malleghem /* MacbookAir4,1 */ 1251c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI), 1261c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO), 1271c601beaSPieter-Augustijn Van Malleghem BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS), 128db0b34b0SJoshua V. Dillon /* MacbookAir4,2 */ 129db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI), 130db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO), 131db0b34b0SJoshua V. Dillon BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS), 132c331eb58SAndrew Drake /* MacbookPro8,2 */ 133c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI), 134c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO), 135c331eb58SAndrew Drake BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS), 1363dde22a9SHenrik Rydberg /* MacbookPro10,1 */ 1373dde22a9SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI), 1383dde22a9SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO), 1393dde22a9SHenrik Rydberg BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), 140f89bd95cSHenrik Rydberg /* Terminating entry */ 141f89bd95cSHenrik Rydberg {} 142f89bd95cSHenrik Rydberg }; 143f89bd95cSHenrik Rydberg MODULE_DEVICE_TABLE(usb, bcm5974_table); 144f89bd95cSHenrik Rydberg 145f89bd95cSHenrik Rydberg MODULE_AUTHOR("Henrik Rydberg"); 146f89bd95cSHenrik Rydberg MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver"); 147f89bd95cSHenrik Rydberg MODULE_LICENSE("GPL"); 148f89bd95cSHenrik Rydberg 149f89bd95cSHenrik Rydberg #define dprintk(level, format, a...)\ 150f89bd95cSHenrik Rydberg { if (debug >= level) printk(KERN_DEBUG format, ##a); } 151f89bd95cSHenrik Rydberg 152f89bd95cSHenrik Rydberg static int debug = 1; 153f89bd95cSHenrik Rydberg module_param(debug, int, 0644); 154f89bd95cSHenrik Rydberg MODULE_PARM_DESC(debug, "Activate debugging output"); 155f89bd95cSHenrik Rydberg 156f89bd95cSHenrik Rydberg /* button data structure */ 157f89bd95cSHenrik Rydberg struct bt_data { 158f89bd95cSHenrik Rydberg u8 unknown1; /* constant */ 159f89bd95cSHenrik Rydberg u8 button; /* left button */ 160f89bd95cSHenrik Rydberg u8 rel_x; /* relative x coordinate */ 161f89bd95cSHenrik Rydberg u8 rel_y; /* relative y coordinate */ 162f89bd95cSHenrik Rydberg }; 163f89bd95cSHenrik Rydberg 1649894cf0fSHenrik Rydberg /* trackpad header types */ 1659894cf0fSHenrik Rydberg enum tp_type { 166158e9287SHenrik Rydberg TYPE1, /* plain trackpad */ 167158e9287SHenrik Rydberg TYPE2 /* button integrated in trackpad */ 168f89bd95cSHenrik Rydberg }; 169f89bd95cSHenrik Rydberg 1709894cf0fSHenrik Rydberg /* trackpad finger data offsets, le16-aligned */ 1719894cf0fSHenrik Rydberg #define FINGER_TYPE1 (13 * sizeof(__le16)) 172158e9287SHenrik Rydberg #define FINGER_TYPE2 (15 * sizeof(__le16)) 173158e9287SHenrik Rydberg 174158e9287SHenrik Rydberg /* trackpad button data offsets */ 175158e9287SHenrik Rydberg #define BUTTON_TYPE2 15 176158e9287SHenrik Rydberg 177158e9287SHenrik Rydberg /* list of device capability bits */ 178158e9287SHenrik Rydberg #define HAS_INTEGRATED_BUTTON 1 1799894cf0fSHenrik Rydberg 1809894cf0fSHenrik Rydberg /* trackpad finger structure, le16-aligned */ 181f89bd95cSHenrik Rydberg struct tp_finger { 18275e21e3fSHenrik Rydberg __le16 origin; /* zero when switching track finger */ 183f89bd95cSHenrik Rydberg __le16 abs_x; /* absolute x coodinate */ 184f89bd95cSHenrik Rydberg __le16 abs_y; /* absolute y coodinate */ 185f89bd95cSHenrik Rydberg __le16 rel_x; /* relative x coodinate */ 186f89bd95cSHenrik Rydberg __le16 rel_y; /* relative y coodinate */ 187f17953abSHenrik Rydberg __le16 tool_major; /* tool area, major axis */ 188f17953abSHenrik Rydberg __le16 tool_minor; /* tool area, minor axis */ 189f89bd95cSHenrik Rydberg __le16 orientation; /* 16384 when point, else 15 bit angle */ 190f17953abSHenrik Rydberg __le16 touch_major; /* touch area, major axis */ 191f17953abSHenrik Rydberg __le16 touch_minor; /* touch area, minor axis */ 192f89bd95cSHenrik Rydberg __le16 unused[3]; /* zeros */ 193f89bd95cSHenrik Rydberg __le16 multi; /* one finger: varies, more fingers: constant */ 1949894cf0fSHenrik Rydberg } __attribute__((packed,aligned(2))); 195f89bd95cSHenrik Rydberg 1969894cf0fSHenrik Rydberg /* trackpad finger data size, empirically at least ten fingers */ 197f17953abSHenrik Rydberg #define MAX_FINGERS 16 1989894cf0fSHenrik Rydberg #define SIZEOF_FINGER sizeof(struct tp_finger) 199f17953abSHenrik Rydberg #define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER) 2006f2701b7SHenrik Rydberg #define MAX_FINGER_ORIENTATION 16384 201f89bd95cSHenrik Rydberg 202f89bd95cSHenrik Rydberg /* device-specific parameters */ 203f89bd95cSHenrik Rydberg struct bcm5974_param { 2040e726966SHenrik Rydberg int snratio; /* signal-to-noise ratio */ 2050e726966SHenrik Rydberg int min; /* device minimum reading */ 2060e726966SHenrik Rydberg int max; /* device maximum reading */ 207f89bd95cSHenrik Rydberg }; 208f89bd95cSHenrik Rydberg 209f89bd95cSHenrik Rydberg /* device-specific configuration */ 210f89bd95cSHenrik Rydberg struct bcm5974_config { 211f89bd95cSHenrik Rydberg int ansi, iso, jis; /* the product id of this device */ 212158e9287SHenrik Rydberg int caps; /* device capability bitmask */ 213f89bd95cSHenrik Rydberg int bt_ep; /* the endpoint of the button interface */ 214f89bd95cSHenrik Rydberg int bt_datalen; /* data length of the button interface */ 215f89bd95cSHenrik Rydberg int tp_ep; /* the endpoint of the trackpad interface */ 2169894cf0fSHenrik Rydberg enum tp_type tp_type; /* type of trackpad interface */ 2179894cf0fSHenrik Rydberg int tp_offset; /* offset to trackpad finger data */ 218f89bd95cSHenrik Rydberg int tp_datalen; /* data length of the trackpad interface */ 219f89bd95cSHenrik Rydberg struct bcm5974_param p; /* finger pressure limits */ 220f89bd95cSHenrik Rydberg struct bcm5974_param w; /* finger width limits */ 221f89bd95cSHenrik Rydberg struct bcm5974_param x; /* horizontal limits */ 222f89bd95cSHenrik Rydberg struct bcm5974_param y; /* vertical limits */ 2230e726966SHenrik Rydberg struct bcm5974_param o; /* orientation limits */ 224f89bd95cSHenrik Rydberg }; 225f89bd95cSHenrik Rydberg 226f89bd95cSHenrik Rydberg /* logical device structure */ 227f89bd95cSHenrik Rydberg struct bcm5974 { 228f89bd95cSHenrik Rydberg char phys[64]; 229f89bd95cSHenrik Rydberg struct usb_device *udev; /* usb device */ 23088da765fSDmitry Torokhov struct usb_interface *intf; /* our interface */ 231f89bd95cSHenrik Rydberg struct input_dev *input; /* input dev */ 232f89bd95cSHenrik Rydberg struct bcm5974_config cfg; /* device configuration */ 233f89bd95cSHenrik Rydberg struct mutex pm_mutex; /* serialize access to open/suspend */ 234f89bd95cSHenrik Rydberg int opened; /* 1: opened, 0: closed */ 235f89bd95cSHenrik Rydberg struct urb *bt_urb; /* button usb request block */ 236f89bd95cSHenrik Rydberg struct bt_data *bt_data; /* button transferred data */ 237f89bd95cSHenrik Rydberg struct urb *tp_urb; /* trackpad usb request block */ 2389894cf0fSHenrik Rydberg u8 *tp_data; /* trackpad transferred data */ 239*51c80b74SHenrik Rydberg const struct tp_finger *index[MAX_FINGERS]; /* finger index data */ 240*51c80b74SHenrik Rydberg struct input_mt_pos pos[MAX_FINGERS]; /* position array */ 241*51c80b74SHenrik Rydberg int slots[MAX_FINGERS]; /* slot assignments */ 242f89bd95cSHenrik Rydberg }; 243f89bd95cSHenrik Rydberg 244f89bd95cSHenrik Rydberg /* logical signal quality */ 245f89bd95cSHenrik Rydberg #define SN_PRESSURE 45 /* pressure signal-to-noise ratio */ 246*51c80b74SHenrik Rydberg #define SN_WIDTH 25 /* width signal-to-noise ratio */ 247f89bd95cSHenrik Rydberg #define SN_COORD 250 /* coordinate signal-to-noise ratio */ 2480e726966SHenrik Rydberg #define SN_ORIENT 10 /* orientation signal-to-noise ratio */ 24975e21e3fSHenrik Rydberg 250f89bd95cSHenrik Rydberg /* device constants */ 251f89bd95cSHenrik Rydberg static const struct bcm5974_config bcm5974_config_table[] = { 252f89bd95cSHenrik Rydberg { 253f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, 254f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_ISO, 255f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING_JIS, 256158e9287SHenrik Rydberg 0, 257f89bd95cSHenrik Rydberg 0x84, sizeof(struct bt_data), 2589894cf0fSHenrik Rydberg 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, 2590e726966SHenrik Rydberg { SN_PRESSURE, 0, 256 }, 2600e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 2610e726966SHenrik Rydberg { SN_COORD, -4824, 5342 }, 2620e726966SHenrik Rydberg { SN_COORD, -172, 5820 }, 2630e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 264f89bd95cSHenrik Rydberg }, 265f89bd95cSHenrik Rydberg { 266f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, 267f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, 268f89bd95cSHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, 269158e9287SHenrik Rydberg 0, 270f89bd95cSHenrik Rydberg 0x84, sizeof(struct bt_data), 2719894cf0fSHenrik Rydberg 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, 2720e726966SHenrik Rydberg { SN_PRESSURE, 0, 256 }, 2730e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 2740e726966SHenrik Rydberg { SN_COORD, -4824, 4824 }, 2750e726966SHenrik Rydberg { SN_COORD, -172, 4290 }, 2760e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 277f89bd95cSHenrik Rydberg }, 278158e9287SHenrik Rydberg { 279158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI, 280158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_ISO, 281158e9287SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING3_JIS, 282158e9287SHenrik Rydberg HAS_INTEGRATED_BUTTON, 283158e9287SHenrik Rydberg 0x84, sizeof(struct bt_data), 284158e9287SHenrik Rydberg 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 2850e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 2860e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 2870e726966SHenrik Rydberg { SN_COORD, -4460, 5166 }, 2880e726966SHenrik Rydberg { SN_COORD, -75, 6700 }, 2890e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 290158e9287SHenrik Rydberg }, 2916021afcfSEdgar (gimli) Hucek { 2926021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI, 2936021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_ISO, 2946021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4_JIS, 2956021afcfSEdgar (gimli) Hucek HAS_INTEGRATED_BUTTON, 2966021afcfSEdgar (gimli) Hucek 0x84, sizeof(struct bt_data), 2976021afcfSEdgar (gimli) Hucek 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 2980e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 2990e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3000e726966SHenrik Rydberg { SN_COORD, -4620, 5140 }, 3010e726966SHenrik Rydberg { SN_COORD, -150, 6600 }, 3020e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 3036021afcfSEdgar (gimli) Hucek }, 3046021afcfSEdgar (gimli) Hucek { 3056021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI, 3066021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO, 3076021afcfSEdgar (gimli) Hucek USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS, 3086021afcfSEdgar (gimli) Hucek HAS_INTEGRATED_BUTTON, 3096021afcfSEdgar (gimli) Hucek 0x84, sizeof(struct bt_data), 3106021afcfSEdgar (gimli) Hucek 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3110e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3120e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3130e726966SHenrik Rydberg { SN_COORD, -4616, 5112 }, 3140e726966SHenrik Rydberg { SN_COORD, -142, 5234 }, 3150e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 3166021afcfSEdgar (gimli) Hucek }, 31747340bd9SAndy Botting { 31847340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI, 31947340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_ISO, 32047340bd9SAndy Botting USB_DEVICE_ID_APPLE_WELLSPRING5_JIS, 32147340bd9SAndy Botting HAS_INTEGRATED_BUTTON, 32247340bd9SAndy Botting 0x84, sizeof(struct bt_data), 32347340bd9SAndy Botting 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3240e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3250e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3260e726966SHenrik Rydberg { SN_COORD, -4415, 5050 }, 3270e726966SHenrik Rydberg { SN_COORD, -55, 6680 }, 3280e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 32947340bd9SAndy Botting }, 330db0b34b0SJoshua V. Dillon { 331db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI, 332db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_ISO, 333db0b34b0SJoshua V. Dillon USB_DEVICE_ID_APPLE_WELLSPRING6_JIS, 334db0b34b0SJoshua V. Dillon HAS_INTEGRATED_BUTTON, 335db0b34b0SJoshua V. Dillon 0x84, sizeof(struct bt_data), 336db0b34b0SJoshua V. Dillon 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3370e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3380e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3390e726966SHenrik Rydberg { SN_COORD, -4620, 5140 }, 3400e726966SHenrik Rydberg { SN_COORD, -150, 6600 }, 3410e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 342db0b34b0SJoshua V. Dillon }, 343c331eb58SAndrew Drake { 344c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI, 345c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO, 346c331eb58SAndrew Drake USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS, 347c331eb58SAndrew Drake HAS_INTEGRATED_BUTTON, 348c331eb58SAndrew Drake 0x84, sizeof(struct bt_data), 349c331eb58SAndrew Drake 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3500e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3510e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3520e726966SHenrik Rydberg { SN_COORD, -4750, 5280 }, 3530e726966SHenrik Rydberg { SN_COORD, -150, 6730 }, 3540e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 355c331eb58SAndrew Drake }, 3561c601beaSPieter-Augustijn Van Malleghem { 3571c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI, 3581c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO, 3591c601beaSPieter-Augustijn Van Malleghem USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS, 3601c601beaSPieter-Augustijn Van Malleghem HAS_INTEGRATED_BUTTON, 3611c601beaSPieter-Augustijn Van Malleghem 0x84, sizeof(struct bt_data), 3621c601beaSPieter-Augustijn Van Malleghem 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3630e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3640e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3650e726966SHenrik Rydberg { SN_COORD, -4620, 5140 }, 3660e726966SHenrik Rydberg { SN_COORD, -150, 6600 }, 3670e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 3681c601beaSPieter-Augustijn Van Malleghem }, 3693dde22a9SHenrik Rydberg { 3703dde22a9SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI, 3713dde22a9SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING7_ISO, 3723dde22a9SHenrik Rydberg USB_DEVICE_ID_APPLE_WELLSPRING7_JIS, 3733dde22a9SHenrik Rydberg HAS_INTEGRATED_BUTTON, 3743dde22a9SHenrik Rydberg 0x84, sizeof(struct bt_data), 3753dde22a9SHenrik Rydberg 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, 3760e726966SHenrik Rydberg { SN_PRESSURE, 0, 300 }, 3770e726966SHenrik Rydberg { SN_WIDTH, 0, 2048 }, 3780e726966SHenrik Rydberg { SN_COORD, -4750, 5280 }, 3790e726966SHenrik Rydberg { SN_COORD, -150, 6730 }, 3800e726966SHenrik Rydberg { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } 3813dde22a9SHenrik Rydberg }, 382f89bd95cSHenrik Rydberg {} 383f89bd95cSHenrik Rydberg }; 384f89bd95cSHenrik Rydberg 385f89bd95cSHenrik Rydberg /* return the device-specific configuration by device */ 386f89bd95cSHenrik Rydberg static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev) 387f89bd95cSHenrik Rydberg { 388f89bd95cSHenrik Rydberg u16 id = le16_to_cpu(udev->descriptor.idProduct); 389f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg; 390f89bd95cSHenrik Rydberg 391f89bd95cSHenrik Rydberg for (cfg = bcm5974_config_table; cfg->ansi; ++cfg) 392f89bd95cSHenrik Rydberg if (cfg->ansi == id || cfg->iso == id || cfg->jis == id) 393f89bd95cSHenrik Rydberg return cfg; 394f89bd95cSHenrik Rydberg 395f89bd95cSHenrik Rydberg return bcm5974_config_table; 396f89bd95cSHenrik Rydberg } 397f89bd95cSHenrik Rydberg 398f89bd95cSHenrik Rydberg /* convert 16-bit little endian to signed integer */ 399f89bd95cSHenrik Rydberg static inline int raw2int(__le16 x) 400f89bd95cSHenrik Rydberg { 401f89bd95cSHenrik Rydberg return (signed short)le16_to_cpu(x); 402f89bd95cSHenrik Rydberg } 403f89bd95cSHenrik Rydberg 4040e726966SHenrik Rydberg static void set_abs(struct input_dev *input, unsigned int code, 4050e726966SHenrik Rydberg const struct bcm5974_param *p) 406f89bd95cSHenrik Rydberg { 4070e726966SHenrik Rydberg int fuzz = p->snratio ? (p->max - p->min) / p->snratio : 0; 4080e726966SHenrik Rydberg input_set_abs_params(input, code, p->min, p->max, fuzz, 0); 409f89bd95cSHenrik Rydberg } 410f89bd95cSHenrik Rydberg 411f89bd95cSHenrik Rydberg /* setup which logical events to report */ 412f89bd95cSHenrik Rydberg static void setup_events_to_report(struct input_dev *input_dev, 413f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg) 414f89bd95cSHenrik Rydberg { 415f89bd95cSHenrik Rydberg __set_bit(EV_ABS, input_dev->evbit); 416f89bd95cSHenrik Rydberg 4170e726966SHenrik Rydberg /* for synaptics only */ 4180e726966SHenrik Rydberg input_set_abs_params(input_dev, ABS_PRESSURE, 0, 256, 5, 0); 4190e726966SHenrik Rydberg input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 0, 16, 0, 0); 4200e726966SHenrik Rydberg 4216f2701b7SHenrik Rydberg /* finger touch area */ 4220e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_TOUCH_MAJOR, &cfg->w); 4230e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_TOUCH_MINOR, &cfg->w); 4246f2701b7SHenrik Rydberg /* finger approach area */ 4250e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_WIDTH_MAJOR, &cfg->w); 4260e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_WIDTH_MINOR, &cfg->w); 4276f2701b7SHenrik Rydberg /* finger orientation */ 4280e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_ORIENTATION, &cfg->o); 4296f2701b7SHenrik Rydberg /* finger position */ 4300e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_POSITION_X, &cfg->x); 4310e726966SHenrik Rydberg set_abs(input_dev, ABS_MT_POSITION_Y, &cfg->y); 4326f2701b7SHenrik Rydberg 433f89bd95cSHenrik Rydberg __set_bit(EV_KEY, input_dev->evbit); 434f89bd95cSHenrik Rydberg __set_bit(BTN_LEFT, input_dev->keybit); 435c13aea03SHenrik Rydberg 43652965cc0SJussi Pakkanen if (cfg->caps & HAS_INTEGRATED_BUTTON) 43752965cc0SJussi Pakkanen __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); 43852965cc0SJussi Pakkanen 439*51c80b74SHenrik Rydberg input_mt_init_slots(input_dev, MAX_FINGERS, 440*51c80b74SHenrik Rydberg INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK); 441f89bd95cSHenrik Rydberg } 442f89bd95cSHenrik Rydberg 443f89bd95cSHenrik Rydberg /* report button data as logical button state */ 444f89bd95cSHenrik Rydberg static int report_bt_state(struct bcm5974 *dev, int size) 445f89bd95cSHenrik Rydberg { 446f89bd95cSHenrik Rydberg if (size != sizeof(struct bt_data)) 447f89bd95cSHenrik Rydberg return -EIO; 448f89bd95cSHenrik Rydberg 44953402193SHenrik Rydberg dprintk(7, 45053402193SHenrik Rydberg "bcm5974: button data: %x %x %x %x\n", 45153402193SHenrik Rydberg dev->bt_data->unknown1, dev->bt_data->button, 45253402193SHenrik Rydberg dev->bt_data->rel_x, dev->bt_data->rel_y); 45353402193SHenrik Rydberg 454f89bd95cSHenrik Rydberg input_report_key(dev->input, BTN_LEFT, dev->bt_data->button); 455f89bd95cSHenrik Rydberg input_sync(dev->input); 456f89bd95cSHenrik Rydberg 457f89bd95cSHenrik Rydberg return 0; 458f89bd95cSHenrik Rydberg } 459f89bd95cSHenrik Rydberg 460*51c80b74SHenrik Rydberg static void report_finger_data(struct input_dev *input, int slot, 461*51c80b74SHenrik Rydberg const struct input_mt_pos *pos, 4626f2701b7SHenrik Rydberg const struct tp_finger *f) 4636f2701b7SHenrik Rydberg { 464*51c80b74SHenrik Rydberg input_mt_slot(input, slot); 465*51c80b74SHenrik Rydberg input_mt_report_slot_state(input, MT_TOOL_FINGER, true); 466*51c80b74SHenrik Rydberg 46757157becSHenrik Rydberg input_report_abs(input, ABS_MT_TOUCH_MAJOR, 468f17953abSHenrik Rydberg raw2int(f->touch_major) << 1); 46957157becSHenrik Rydberg input_report_abs(input, ABS_MT_TOUCH_MINOR, 470f17953abSHenrik Rydberg raw2int(f->touch_minor) << 1); 47157157becSHenrik Rydberg input_report_abs(input, ABS_MT_WIDTH_MAJOR, 472f17953abSHenrik Rydberg raw2int(f->tool_major) << 1); 47357157becSHenrik Rydberg input_report_abs(input, ABS_MT_WIDTH_MINOR, 474f17953abSHenrik Rydberg raw2int(f->tool_minor) << 1); 4756f2701b7SHenrik Rydberg input_report_abs(input, ABS_MT_ORIENTATION, 4766f2701b7SHenrik Rydberg MAX_FINGER_ORIENTATION - raw2int(f->orientation)); 477*51c80b74SHenrik Rydberg input_report_abs(input, ABS_MT_POSITION_X, pos->x); 478*51c80b74SHenrik Rydberg input_report_abs(input, ABS_MT_POSITION_Y, pos->y); 4796f2701b7SHenrik Rydberg } 4806f2701b7SHenrik Rydberg 4810e726966SHenrik Rydberg static void report_synaptics_data(struct input_dev *input, 4820e726966SHenrik Rydberg const struct bcm5974_config *cfg, 4830e726966SHenrik Rydberg const struct tp_finger *f, int raw_n) 4840e726966SHenrik Rydberg { 4850e726966SHenrik Rydberg int abs_p = 0, abs_w = 0; 4860e726966SHenrik Rydberg 4870e726966SHenrik Rydberg if (raw_n) { 4880e726966SHenrik Rydberg int p = raw2int(f->touch_major); 4890e726966SHenrik Rydberg int w = raw2int(f->tool_major); 4900e726966SHenrik Rydberg if (p > 0 && raw2int(f->origin)) { 4910e726966SHenrik Rydberg abs_p = clamp_val(256 * p / cfg->p.max, 0, 255); 4920e726966SHenrik Rydberg abs_w = clamp_val(16 * w / cfg->w.max, 0, 15); 4930e726966SHenrik Rydberg } 4940e726966SHenrik Rydberg } 4950e726966SHenrik Rydberg 4960e726966SHenrik Rydberg input_report_abs(input, ABS_PRESSURE, abs_p); 4970e726966SHenrik Rydberg input_report_abs(input, ABS_TOOL_WIDTH, abs_w); 4980e726966SHenrik Rydberg } 4990e726966SHenrik Rydberg 500f89bd95cSHenrik Rydberg /* report trackpad data as logical trackpad state */ 501f89bd95cSHenrik Rydberg static int report_tp_state(struct bcm5974 *dev, int size) 502f89bd95cSHenrik Rydberg { 503f89bd95cSHenrik Rydberg const struct bcm5974_config *c = &dev->cfg; 5049894cf0fSHenrik Rydberg const struct tp_finger *f; 505f89bd95cSHenrik Rydberg struct input_dev *input = dev->input; 506*51c80b74SHenrik Rydberg int raw_n, i, n = 0; 507f89bd95cSHenrik Rydberg 5089894cf0fSHenrik Rydberg if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0) 509f89bd95cSHenrik Rydberg return -EIO; 510f89bd95cSHenrik Rydberg 5119894cf0fSHenrik Rydberg /* finger data, le16-aligned */ 5129894cf0fSHenrik Rydberg f = (const struct tp_finger *)(dev->tp_data + c->tp_offset); 5139894cf0fSHenrik Rydberg raw_n = (size - c->tp_offset) / SIZEOF_FINGER; 5149894cf0fSHenrik Rydberg 515*51c80b74SHenrik Rydberg for (i = 0; i < raw_n; i++) { 516*51c80b74SHenrik Rydberg if (raw2int(f[i].touch_major) == 0) 517*51c80b74SHenrik Rydberg continue; 518*51c80b74SHenrik Rydberg dev->pos[n].x = raw2int(f[i].abs_x); 519*51c80b74SHenrik Rydberg dev->pos[n].y = c->y.min + c->y.max - raw2int(f[i].abs_y); 520*51c80b74SHenrik Rydberg dev->index[n++] = &f[i]; 52175e21e3fSHenrik Rydberg } 522f89bd95cSHenrik Rydberg 523*51c80b74SHenrik Rydberg input_mt_assign_slots(input, dev->slots, dev->pos, n); 524*51c80b74SHenrik Rydberg 525*51c80b74SHenrik Rydberg for (i = 0; i < n; i++) 526*51c80b74SHenrik Rydberg report_finger_data(input, dev->slots[i], 527*51c80b74SHenrik Rydberg &dev->pos[i], dev->index[i]); 528*51c80b74SHenrik Rydberg 529*51c80b74SHenrik Rydberg input_mt_sync_frame(input); 53050635115SHenrik Rydberg 5310e726966SHenrik Rydberg report_synaptics_data(input, c, f, raw_n); 53275e21e3fSHenrik Rydberg 533158e9287SHenrik Rydberg /* type 2 reports button events via ibt only */ 5340e726966SHenrik Rydberg if (c->tp_type == TYPE2) { 5350e726966SHenrik Rydberg int ibt = raw2int(dev->tp_data[BUTTON_TYPE2]); 536158e9287SHenrik Rydberg input_report_key(input, BTN_LEFT, ibt); 5370e726966SHenrik Rydberg } 538158e9287SHenrik Rydberg 539f89bd95cSHenrik Rydberg input_sync(input); 540f89bd95cSHenrik Rydberg 541f89bd95cSHenrik Rydberg return 0; 542f89bd95cSHenrik Rydberg } 543f89bd95cSHenrik Rydberg 544f89bd95cSHenrik Rydberg /* Wellspring initialization constants */ 545f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1 546f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9 547f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300 548f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0 549f89bd95cSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01 550cd72ad3fSHenrik Rydberg #define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08 551f89bd95cSHenrik Rydberg 552cd72ad3fSHenrik Rydberg static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on) 553f89bd95cSHenrik Rydberg { 554f89bd95cSHenrik Rydberg char *data = kmalloc(8, GFP_KERNEL); 555f89bd95cSHenrik Rydberg int retval = 0, size; 556f89bd95cSHenrik Rydberg 557f89bd95cSHenrik Rydberg if (!data) { 558ab943ca8SGreg Kroah-Hartman dev_err(&dev->intf->dev, "out of memory\n"); 559f89bd95cSHenrik Rydberg retval = -ENOMEM; 560f89bd95cSHenrik Rydberg goto out; 561f89bd95cSHenrik Rydberg } 562f89bd95cSHenrik Rydberg 563f89bd95cSHenrik Rydberg /* read configuration */ 564f89bd95cSHenrik Rydberg size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), 565f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_READ_REQUEST_ID, 566f89bd95cSHenrik Rydberg USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 567f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_VALUE, 568f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); 569f89bd95cSHenrik Rydberg 570f89bd95cSHenrik Rydberg if (size != 8) { 571ab943ca8SGreg Kroah-Hartman dev_err(&dev->intf->dev, "could not read from device\n"); 572f89bd95cSHenrik Rydberg retval = -EIO; 573f89bd95cSHenrik Rydberg goto out; 574f89bd95cSHenrik Rydberg } 575f89bd95cSHenrik Rydberg 576f89bd95cSHenrik Rydberg /* apply the mode switch */ 577cd72ad3fSHenrik Rydberg data[0] = on ? 578cd72ad3fSHenrik Rydberg BCM5974_WELLSPRING_MODE_VENDOR_VALUE : 579cd72ad3fSHenrik Rydberg BCM5974_WELLSPRING_MODE_NORMAL_VALUE; 580f89bd95cSHenrik Rydberg 581f89bd95cSHenrik Rydberg /* write configuration */ 582f89bd95cSHenrik Rydberg size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), 583f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID, 584f89bd95cSHenrik Rydberg USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 585f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_VALUE, 586f89bd95cSHenrik Rydberg BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); 587f89bd95cSHenrik Rydberg 588f89bd95cSHenrik Rydberg if (size != 8) { 589ab943ca8SGreg Kroah-Hartman dev_err(&dev->intf->dev, "could not write to device\n"); 590f89bd95cSHenrik Rydberg retval = -EIO; 591f89bd95cSHenrik Rydberg goto out; 592f89bd95cSHenrik Rydberg } 593f89bd95cSHenrik Rydberg 594cd72ad3fSHenrik Rydberg dprintk(2, "bcm5974: switched to %s mode.\n", 595cd72ad3fSHenrik Rydberg on ? "wellspring" : "normal"); 596f89bd95cSHenrik Rydberg 597f89bd95cSHenrik Rydberg out: 598f89bd95cSHenrik Rydberg kfree(data); 599f89bd95cSHenrik Rydberg return retval; 600f89bd95cSHenrik Rydberg } 601f89bd95cSHenrik Rydberg 602f89bd95cSHenrik Rydberg static void bcm5974_irq_button(struct urb *urb) 603f89bd95cSHenrik Rydberg { 604f89bd95cSHenrik Rydberg struct bcm5974 *dev = urb->context; 605ab943ca8SGreg Kroah-Hartman struct usb_interface *intf = dev->intf; 606f89bd95cSHenrik Rydberg int error; 607f89bd95cSHenrik Rydberg 608f89bd95cSHenrik Rydberg switch (urb->status) { 609f89bd95cSHenrik Rydberg case 0: 610f89bd95cSHenrik Rydberg break; 611f89bd95cSHenrik Rydberg case -EOVERFLOW: 612f89bd95cSHenrik Rydberg case -ECONNRESET: 613f89bd95cSHenrik Rydberg case -ENOENT: 614f89bd95cSHenrik Rydberg case -ESHUTDOWN: 615ab943ca8SGreg Kroah-Hartman dev_dbg(&intf->dev, "button urb shutting down: %d\n", 616bd028769SGreg Kroah-Hartman urb->status); 617f89bd95cSHenrik Rydberg return; 618f89bd95cSHenrik Rydberg default: 619ab943ca8SGreg Kroah-Hartman dev_dbg(&intf->dev, "button urb status: %d\n", urb->status); 620f89bd95cSHenrik Rydberg goto exit; 621f89bd95cSHenrik Rydberg } 622f89bd95cSHenrik Rydberg 623f89bd95cSHenrik Rydberg if (report_bt_state(dev, dev->bt_urb->actual_length)) 624f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: bad button package, length: %d\n", 625f89bd95cSHenrik Rydberg dev->bt_urb->actual_length); 626f89bd95cSHenrik Rydberg 627f89bd95cSHenrik Rydberg exit: 628f89bd95cSHenrik Rydberg error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC); 629f89bd95cSHenrik Rydberg if (error) 630ab943ca8SGreg Kroah-Hartman dev_err(&intf->dev, "button urb failed: %d\n", error); 631f89bd95cSHenrik Rydberg } 632f89bd95cSHenrik Rydberg 633f89bd95cSHenrik Rydberg static void bcm5974_irq_trackpad(struct urb *urb) 634f89bd95cSHenrik Rydberg { 635f89bd95cSHenrik Rydberg struct bcm5974 *dev = urb->context; 636ab943ca8SGreg Kroah-Hartman struct usb_interface *intf = dev->intf; 637f89bd95cSHenrik Rydberg int error; 638f89bd95cSHenrik Rydberg 639f89bd95cSHenrik Rydberg switch (urb->status) { 640f89bd95cSHenrik Rydberg case 0: 641f89bd95cSHenrik Rydberg break; 642f89bd95cSHenrik Rydberg case -EOVERFLOW: 643f89bd95cSHenrik Rydberg case -ECONNRESET: 644f89bd95cSHenrik Rydberg case -ENOENT: 645f89bd95cSHenrik Rydberg case -ESHUTDOWN: 646ab943ca8SGreg Kroah-Hartman dev_dbg(&intf->dev, "trackpad urb shutting down: %d\n", 647bd028769SGreg Kroah-Hartman urb->status); 648f89bd95cSHenrik Rydberg return; 649f89bd95cSHenrik Rydberg default: 650ab943ca8SGreg Kroah-Hartman dev_dbg(&intf->dev, "trackpad urb status: %d\n", urb->status); 651f89bd95cSHenrik Rydberg goto exit; 652f89bd95cSHenrik Rydberg } 653f89bd95cSHenrik Rydberg 654f89bd95cSHenrik Rydberg /* control response ignored */ 655f89bd95cSHenrik Rydberg if (dev->tp_urb->actual_length == 2) 656f89bd95cSHenrik Rydberg goto exit; 657f89bd95cSHenrik Rydberg 658f89bd95cSHenrik Rydberg if (report_tp_state(dev, dev->tp_urb->actual_length)) 659f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: bad trackpad package, length: %d\n", 660f89bd95cSHenrik Rydberg dev->tp_urb->actual_length); 661f89bd95cSHenrik Rydberg 662f89bd95cSHenrik Rydberg exit: 663f89bd95cSHenrik Rydberg error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC); 664f89bd95cSHenrik Rydberg if (error) 665ab943ca8SGreg Kroah-Hartman dev_err(&intf->dev, "trackpad urb failed: %d\n", error); 666f89bd95cSHenrik Rydberg } 667f89bd95cSHenrik Rydberg 668f89bd95cSHenrik Rydberg /* 669f89bd95cSHenrik Rydberg * The Wellspring trackpad, like many recent Apple trackpads, share 670f89bd95cSHenrik Rydberg * the usb device with the keyboard. Since keyboards are usually 671f89bd95cSHenrik Rydberg * handled by the HID system, the device ends up being handled by two 672f89bd95cSHenrik Rydberg * modules. Setting up the device therefore becomes slightly 673f89bd95cSHenrik Rydberg * complicated. To enable multitouch features, a mode switch is 674f89bd95cSHenrik Rydberg * required, which is usually applied via the control interface of the 675f89bd95cSHenrik Rydberg * device. It can be argued where this switch should take place. In 676f89bd95cSHenrik Rydberg * some drivers, like appletouch, the switch is made during 677f89bd95cSHenrik Rydberg * probe. However, the hid module may also alter the state of the 678f89bd95cSHenrik Rydberg * device, resulting in trackpad malfunction under certain 679f89bd95cSHenrik Rydberg * circumstances. To get around this problem, there is at least one 680f89bd95cSHenrik Rydberg * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to 68125985edcSLucas De Marchi * receive a reset_resume request rather than the normal resume. 682f89bd95cSHenrik Rydberg * Since the implementation of reset_resume is equal to mode switch 683f89bd95cSHenrik Rydberg * plus start_traffic, it seems easier to always do the switch when 684f89bd95cSHenrik Rydberg * starting traffic on the device. 685f89bd95cSHenrik Rydberg */ 686f89bd95cSHenrik Rydberg static int bcm5974_start_traffic(struct bcm5974 *dev) 687f89bd95cSHenrik Rydberg { 6881719ec41SLuo Jinghua int error; 6891719ec41SLuo Jinghua 6901719ec41SLuo Jinghua error = bcm5974_wellspring_mode(dev, true); 6911719ec41SLuo Jinghua if (error) { 692f89bd95cSHenrik Rydberg dprintk(1, "bcm5974: mode switch failed\n"); 6931719ec41SLuo Jinghua goto err_out; 694f89bd95cSHenrik Rydberg } 695f89bd95cSHenrik Rydberg 69643f482b4SHenrik Rydberg if (dev->bt_urb) { 6971719ec41SLuo Jinghua error = usb_submit_urb(dev->bt_urb, GFP_KERNEL); 6981719ec41SLuo Jinghua if (error) 6991719ec41SLuo Jinghua goto err_reset_mode; 70043f482b4SHenrik Rydberg } 701f89bd95cSHenrik Rydberg 7021719ec41SLuo Jinghua error = usb_submit_urb(dev->tp_urb, GFP_KERNEL); 7031719ec41SLuo Jinghua if (error) 704f89bd95cSHenrik Rydberg goto err_kill_bt; 705f89bd95cSHenrik Rydberg 706f89bd95cSHenrik Rydberg return 0; 707f89bd95cSHenrik Rydberg 708f89bd95cSHenrik Rydberg err_kill_bt: 709f89bd95cSHenrik Rydberg usb_kill_urb(dev->bt_urb); 7101719ec41SLuo Jinghua err_reset_mode: 7111719ec41SLuo Jinghua bcm5974_wellspring_mode(dev, false); 7121719ec41SLuo Jinghua err_out: 7131719ec41SLuo Jinghua return error; 714f89bd95cSHenrik Rydberg } 715f89bd95cSHenrik Rydberg 716f89bd95cSHenrik Rydberg static void bcm5974_pause_traffic(struct bcm5974 *dev) 717f89bd95cSHenrik Rydberg { 718f89bd95cSHenrik Rydberg usb_kill_urb(dev->tp_urb); 719f89bd95cSHenrik Rydberg usb_kill_urb(dev->bt_urb); 720cd72ad3fSHenrik Rydberg bcm5974_wellspring_mode(dev, false); 721f89bd95cSHenrik Rydberg } 722f89bd95cSHenrik Rydberg 723f89bd95cSHenrik Rydberg /* 724f89bd95cSHenrik Rydberg * The code below implements open/close and manual suspend/resume. 725f89bd95cSHenrik Rydberg * All functions may be called in random order. 726f89bd95cSHenrik Rydberg * 727f89bd95cSHenrik Rydberg * Opening a suspended device fails with EACCES - permission denied. 728f89bd95cSHenrik Rydberg * 729f89bd95cSHenrik Rydberg * Failing a resume leaves the device resumed but closed. 730f89bd95cSHenrik Rydberg */ 731f89bd95cSHenrik Rydberg static int bcm5974_open(struct input_dev *input) 732f89bd95cSHenrik Rydberg { 733f89bd95cSHenrik Rydberg struct bcm5974 *dev = input_get_drvdata(input); 734f89bd95cSHenrik Rydberg int error; 735f89bd95cSHenrik Rydberg 73688da765fSDmitry Torokhov error = usb_autopm_get_interface(dev->intf); 73788da765fSDmitry Torokhov if (error) 73888da765fSDmitry Torokhov return error; 73988da765fSDmitry Torokhov 740f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 741f89bd95cSHenrik Rydberg 742f89bd95cSHenrik Rydberg error = bcm5974_start_traffic(dev); 743f89bd95cSHenrik Rydberg if (!error) 744f89bd95cSHenrik Rydberg dev->opened = 1; 745f89bd95cSHenrik Rydberg 746f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 747f89bd95cSHenrik Rydberg 74888da765fSDmitry Torokhov if (error) 74988da765fSDmitry Torokhov usb_autopm_put_interface(dev->intf); 75088da765fSDmitry Torokhov 751f89bd95cSHenrik Rydberg return error; 752f89bd95cSHenrik Rydberg } 753f89bd95cSHenrik Rydberg 754f89bd95cSHenrik Rydberg static void bcm5974_close(struct input_dev *input) 755f89bd95cSHenrik Rydberg { 756f89bd95cSHenrik Rydberg struct bcm5974 *dev = input_get_drvdata(input); 757f89bd95cSHenrik Rydberg 758f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 759f89bd95cSHenrik Rydberg 760f89bd95cSHenrik Rydberg bcm5974_pause_traffic(dev); 761f89bd95cSHenrik Rydberg dev->opened = 0; 762f89bd95cSHenrik Rydberg 763f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 76488da765fSDmitry Torokhov 76588da765fSDmitry Torokhov usb_autopm_put_interface(dev->intf); 766f89bd95cSHenrik Rydberg } 767f89bd95cSHenrik Rydberg 768f89bd95cSHenrik Rydberg static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message) 769f89bd95cSHenrik Rydberg { 770f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 771f89bd95cSHenrik Rydberg 772f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 773f89bd95cSHenrik Rydberg 774f89bd95cSHenrik Rydberg if (dev->opened) 775f89bd95cSHenrik Rydberg bcm5974_pause_traffic(dev); 776f89bd95cSHenrik Rydberg 777f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 778f89bd95cSHenrik Rydberg 779f89bd95cSHenrik Rydberg return 0; 780f89bd95cSHenrik Rydberg } 781f89bd95cSHenrik Rydberg 782f89bd95cSHenrik Rydberg static int bcm5974_resume(struct usb_interface *iface) 783f89bd95cSHenrik Rydberg { 784f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 785f89bd95cSHenrik Rydberg int error = 0; 786f89bd95cSHenrik Rydberg 787f89bd95cSHenrik Rydberg mutex_lock(&dev->pm_mutex); 788f89bd95cSHenrik Rydberg 789f89bd95cSHenrik Rydberg if (dev->opened) 790f89bd95cSHenrik Rydberg error = bcm5974_start_traffic(dev); 791f89bd95cSHenrik Rydberg 792f89bd95cSHenrik Rydberg mutex_unlock(&dev->pm_mutex); 793f89bd95cSHenrik Rydberg 794f89bd95cSHenrik Rydberg return error; 795f89bd95cSHenrik Rydberg } 796f89bd95cSHenrik Rydberg 797f89bd95cSHenrik Rydberg static int bcm5974_probe(struct usb_interface *iface, 798f89bd95cSHenrik Rydberg const struct usb_device_id *id) 799f89bd95cSHenrik Rydberg { 800f89bd95cSHenrik Rydberg struct usb_device *udev = interface_to_usbdev(iface); 801f89bd95cSHenrik Rydberg const struct bcm5974_config *cfg; 802f89bd95cSHenrik Rydberg struct bcm5974 *dev; 803f89bd95cSHenrik Rydberg struct input_dev *input_dev; 804f89bd95cSHenrik Rydberg int error = -ENOMEM; 805f89bd95cSHenrik Rydberg 806f89bd95cSHenrik Rydberg /* find the product index */ 807f89bd95cSHenrik Rydberg cfg = bcm5974_get_config(udev); 808f89bd95cSHenrik Rydberg 809f89bd95cSHenrik Rydberg /* allocate memory for our device state and initialize it */ 810f89bd95cSHenrik Rydberg dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL); 811f89bd95cSHenrik Rydberg input_dev = input_allocate_device(); 812f89bd95cSHenrik Rydberg if (!dev || !input_dev) { 8136c1d1b24SGreg Kroah-Hartman dev_err(&iface->dev, "out of memory\n"); 814f89bd95cSHenrik Rydberg goto err_free_devs; 815f89bd95cSHenrik Rydberg } 816f89bd95cSHenrik Rydberg 817f89bd95cSHenrik Rydberg dev->udev = udev; 81888da765fSDmitry Torokhov dev->intf = iface; 819f89bd95cSHenrik Rydberg dev->input = input_dev; 820f89bd95cSHenrik Rydberg dev->cfg = *cfg; 821f89bd95cSHenrik Rydberg mutex_init(&dev->pm_mutex); 822f89bd95cSHenrik Rydberg 823f89bd95cSHenrik Rydberg /* setup urbs */ 82443f482b4SHenrik Rydberg if (cfg->tp_type == TYPE1) { 825f89bd95cSHenrik Rydberg dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL); 826f89bd95cSHenrik Rydberg if (!dev->bt_urb) 827f89bd95cSHenrik Rydberg goto err_free_devs; 82843f482b4SHenrik Rydberg } 829f89bd95cSHenrik Rydberg 830f89bd95cSHenrik Rydberg dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL); 831f89bd95cSHenrik Rydberg if (!dev->tp_urb) 832f89bd95cSHenrik Rydberg goto err_free_bt_urb; 833f89bd95cSHenrik Rydberg 83443f482b4SHenrik Rydberg if (dev->bt_urb) { 835997ea58eSDaniel Mack dev->bt_data = usb_alloc_coherent(dev->udev, 836f89bd95cSHenrik Rydberg dev->cfg.bt_datalen, GFP_KERNEL, 837f89bd95cSHenrik Rydberg &dev->bt_urb->transfer_dma); 838f89bd95cSHenrik Rydberg if (!dev->bt_data) 839f89bd95cSHenrik Rydberg goto err_free_urb; 84043f482b4SHenrik Rydberg } 841f89bd95cSHenrik Rydberg 842997ea58eSDaniel Mack dev->tp_data = usb_alloc_coherent(dev->udev, 843f89bd95cSHenrik Rydberg dev->cfg.tp_datalen, GFP_KERNEL, 844f89bd95cSHenrik Rydberg &dev->tp_urb->transfer_dma); 845f89bd95cSHenrik Rydberg if (!dev->tp_data) 846f89bd95cSHenrik Rydberg goto err_free_bt_buffer; 847f89bd95cSHenrik Rydberg 84843f482b4SHenrik Rydberg if (dev->bt_urb) 849f89bd95cSHenrik Rydberg usb_fill_int_urb(dev->bt_urb, udev, 850f89bd95cSHenrik Rydberg usb_rcvintpipe(udev, cfg->bt_ep), 851f89bd95cSHenrik Rydberg dev->bt_data, dev->cfg.bt_datalen, 852f89bd95cSHenrik Rydberg bcm5974_irq_button, dev, 1); 853f89bd95cSHenrik Rydberg 854f89bd95cSHenrik Rydberg usb_fill_int_urb(dev->tp_urb, udev, 855f89bd95cSHenrik Rydberg usb_rcvintpipe(udev, cfg->tp_ep), 856f89bd95cSHenrik Rydberg dev->tp_data, dev->cfg.tp_datalen, 857f89bd95cSHenrik Rydberg bcm5974_irq_trackpad, dev, 1); 858f89bd95cSHenrik Rydberg 859f89bd95cSHenrik Rydberg /* create bcm5974 device */ 860f89bd95cSHenrik Rydberg usb_make_path(udev, dev->phys, sizeof(dev->phys)); 861f89bd95cSHenrik Rydberg strlcat(dev->phys, "/input0", sizeof(dev->phys)); 862f89bd95cSHenrik Rydberg 863f89bd95cSHenrik Rydberg input_dev->name = "bcm5974"; 864f89bd95cSHenrik Rydberg input_dev->phys = dev->phys; 865f89bd95cSHenrik Rydberg usb_to_input_id(dev->udev, &input_dev->id); 866158e9287SHenrik Rydberg /* report driver capabilities via the version field */ 867158e9287SHenrik Rydberg input_dev->id.version = cfg->caps; 868f89bd95cSHenrik Rydberg input_dev->dev.parent = &iface->dev; 869f89bd95cSHenrik Rydberg 870f89bd95cSHenrik Rydberg input_set_drvdata(input_dev, dev); 871f89bd95cSHenrik Rydberg 872f89bd95cSHenrik Rydberg input_dev->open = bcm5974_open; 873f89bd95cSHenrik Rydberg input_dev->close = bcm5974_close; 874f89bd95cSHenrik Rydberg 875f89bd95cSHenrik Rydberg setup_events_to_report(input_dev, cfg); 876f89bd95cSHenrik Rydberg 877f89bd95cSHenrik Rydberg error = input_register_device(dev->input); 878f89bd95cSHenrik Rydberg if (error) 879f89bd95cSHenrik Rydberg goto err_free_buffer; 880f89bd95cSHenrik Rydberg 881f89bd95cSHenrik Rydberg /* save our data pointer in this interface device */ 882f89bd95cSHenrik Rydberg usb_set_intfdata(iface, dev); 883f89bd95cSHenrik Rydberg 884f89bd95cSHenrik Rydberg return 0; 885f89bd95cSHenrik Rydberg 886f89bd95cSHenrik Rydberg err_free_buffer: 887997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.tp_datalen, 888f89bd95cSHenrik Rydberg dev->tp_data, dev->tp_urb->transfer_dma); 889f89bd95cSHenrik Rydberg err_free_bt_buffer: 89043f482b4SHenrik Rydberg if (dev->bt_urb) 891997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.bt_datalen, 892f89bd95cSHenrik Rydberg dev->bt_data, dev->bt_urb->transfer_dma); 893f89bd95cSHenrik Rydberg err_free_urb: 894f89bd95cSHenrik Rydberg usb_free_urb(dev->tp_urb); 895f89bd95cSHenrik Rydberg err_free_bt_urb: 896f89bd95cSHenrik Rydberg usb_free_urb(dev->bt_urb); 897f89bd95cSHenrik Rydberg err_free_devs: 898f89bd95cSHenrik Rydberg usb_set_intfdata(iface, NULL); 899f89bd95cSHenrik Rydberg input_free_device(input_dev); 900f89bd95cSHenrik Rydberg kfree(dev); 901f89bd95cSHenrik Rydberg return error; 902f89bd95cSHenrik Rydberg } 903f89bd95cSHenrik Rydberg 904f89bd95cSHenrik Rydberg static void bcm5974_disconnect(struct usb_interface *iface) 905f89bd95cSHenrik Rydberg { 906f89bd95cSHenrik Rydberg struct bcm5974 *dev = usb_get_intfdata(iface); 907f89bd95cSHenrik Rydberg 908f89bd95cSHenrik Rydberg usb_set_intfdata(iface, NULL); 909f89bd95cSHenrik Rydberg 910f89bd95cSHenrik Rydberg input_unregister_device(dev->input); 911997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.tp_datalen, 912f89bd95cSHenrik Rydberg dev->tp_data, dev->tp_urb->transfer_dma); 91343f482b4SHenrik Rydberg if (dev->bt_urb) 914997ea58eSDaniel Mack usb_free_coherent(dev->udev, dev->cfg.bt_datalen, 915f89bd95cSHenrik Rydberg dev->bt_data, dev->bt_urb->transfer_dma); 916f89bd95cSHenrik Rydberg usb_free_urb(dev->tp_urb); 917f89bd95cSHenrik Rydberg usb_free_urb(dev->bt_urb); 918f89bd95cSHenrik Rydberg kfree(dev); 919f89bd95cSHenrik Rydberg } 920f89bd95cSHenrik Rydberg 921f89bd95cSHenrik Rydberg static struct usb_driver bcm5974_driver = { 922f89bd95cSHenrik Rydberg .name = "bcm5974", 923f89bd95cSHenrik Rydberg .probe = bcm5974_probe, 924f89bd95cSHenrik Rydberg .disconnect = bcm5974_disconnect, 925f89bd95cSHenrik Rydberg .suspend = bcm5974_suspend, 926f89bd95cSHenrik Rydberg .resume = bcm5974_resume, 927f89bd95cSHenrik Rydberg .id_table = bcm5974_table, 92888da765fSDmitry Torokhov .supports_autosuspend = 1, 929f89bd95cSHenrik Rydberg }; 930f89bd95cSHenrik Rydberg 93108642e7cSGreg Kroah-Hartman module_usb_driver(bcm5974_driver); 932