btusb.c revision c13854cef4751000b968d4e8ac95796562d5b96f
15e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann/* 25e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 35e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * Generic Bluetooth USB driver 45e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 59bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 65e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 75e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 85e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * This program is free software; you can redistribute it and/or modify 95e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * it under the terms of the GNU General Public License as published by 105e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * the Free Software Foundation; either version 2 of the License, or 115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * (at your option) any later version. 125e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 135e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * This program is distributed in the hope that it will be useful, 145e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * but WITHOUT ANY WARRANTY; without even the implied warranty of 155e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * GNU General Public License for more details. 175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * You should have received a copy of the GNU General Public License 195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * along with this program; if not, write to the Free Software 205e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann * 225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann */ 235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/kernel.h> 255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/module.h> 265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/init.h> 275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/slab.h> 285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/types.h> 295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/sched.h> 305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/errno.h> 315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/skbuff.h> 325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <linux/usb.h> 345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <net/bluetooth/bluetooth.h> 365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#include <net/bluetooth/hci_core.h> 375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 387bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#define VERSION "0.6" 39cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 40cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic int ignore_dga; 41cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic int ignore_csr; 42cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic int ignore_sniffer; 43cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic int disable_scofix; 44cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic int force_scofix; 457a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 467a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmannstatic int reset = 1; 47cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 48cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannstatic struct usb_driver btusb_driver; 49cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 50cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann#define BTUSB_IGNORE 0x01 517a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_DIGIANSWER 0x02 527a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_CSR 0x04 537a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_SNIFFER 0x08 547a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_BCM92035 0x10 557a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_BROKEN_ISOC 0x20 567a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann#define BTUSB_WRONG_SCO_MTU 0x40 575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic struct usb_device_id btusb_table[] = { 595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann /* Generic Bluetooth USB device */ 605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 62cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* AVM BlueFRITZ! USB v2.0 */ 63cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x057c, 0x3800) }, 64cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 65cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Bluetooth Ultraport Module from IBM */ 66cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x04bf, 0x030a) }, 67cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 68cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* ALPS Modules with non-standard id */ 69cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x044e, 0x3001) }, 70cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x044e, 0x3002) }, 71cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 72cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Ericsson with non-standard id */ 73cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0bdb, 0x1002) }, 74cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 75cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Canyon CN-BTU1 with HID interfaces */ 767a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0c10, 0x0000) }, 77cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 785e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann { } /* Terminating entry */ 795e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann}; 805e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 815e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel HoltmannMODULE_DEVICE_TABLE(usb, btusb_table); 825e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 835e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic struct usb_device_id blacklist_table[] = { 84cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* CSR BlueCore devices */ 85cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 86cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 87cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Broadcom BCM2033 without firmware */ 88cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 89cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 90cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Broadcom BCM2035 */ 917a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 927a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 937a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 94cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 95cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Broadcom BCM2045 */ 967a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 977a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 98bdbef3d696ca83489eb653459b5a7a62ecf5596aMarcel Holtmann 99cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* IBM/Lenovo ThinkPad with Broadcom chip */ 1007a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 1017a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 102cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 103cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* HP laptop with Broadcom chip */ 1047a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 105cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 106cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Dell laptop with Broadcom chip */ 1077a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 108cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1095ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann /* Dell Wireless 370 and 410 devices */ 1107a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 1115ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 112cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1137a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann /* Belkin F8T012 and F8T013 devices */ 1147a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 1157a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 116cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1175ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann /* Asus WL-BTD202 device */ 1185ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 1195ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann 1205ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann /* Kensington Bluetooth USB adapter */ 1215ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 1225ddd4a60683f819982b7bd3d1aee972f931c11a3Marcel Holtmann 123cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* RTX Telecom based adapters with buggy SCO support */ 124cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 125cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 126cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 127cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* CONWISE Technology based adapters with buggy SCO support */ 128cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, 129cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 130cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Digianswer devices */ 131cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 132cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 133cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 134cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* CSR BlueCore Bluetooth Sniffer */ 135cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, 136cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 137cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* Frontline ComProbe Bluetooth Sniffer */ 138cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, 139cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann { } /* Terminating entry */ 1415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann}; 1425e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1439bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann#define BTUSB_MAX_ISOC_FRAMES 10 1449bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 1455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#define BTUSB_INTR_RUNNING 0 1465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann#define BTUSB_BULK_RUNNING 1 1479bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann#define BTUSB_ISOC_RUNNING 2 1487bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#define BTUSB_SUSPENDING 3 1495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstruct btusb_data { 1515e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev; 1525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_device *udev; 1535fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann struct usb_interface *intf; 1549bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_interface *isoc; 1555e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann spinlock_t lock; 1575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned long flags; 1595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct work_struct work; 1617bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct work_struct waker; 1625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_anchor tx_anchor; 1645e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_anchor intr_anchor; 1655e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_anchor bulk_anchor; 1669bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_anchor isoc_anchor; 1677bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct usb_anchor deferred; 1687bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int tx_in_flight; 1697bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spinlock_t txlock; 1705e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1715e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_endpoint_descriptor *intr_ep; 1725e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_endpoint_descriptor *bulk_tx_ep; 1735e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_endpoint_descriptor *bulk_rx_ep; 1749bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_endpoint_descriptor *isoc_tx_ep; 1759bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_endpoint_descriptor *isoc_rx_ep; 1769bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 1777a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann __u8 cmdreq_type; 1787a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 17943c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann unsigned int sco_num; 1809bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann int isoc_altsetting; 1816a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann int suspend_count; 1827bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int did_iso_resume:1; 1835e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann}; 1845e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1857bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumstatic int inc_tx(struct btusb_data *data) 1867bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum{ 1877bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum unsigned long flags; 1887bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int rv; 1897bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 1907bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock_irqsave(&data->txlock, flags); 1917bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum rv = test_bit(BTUSB_SUSPENDING, &data->flags); 1927bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (!rv) 1937bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->tx_in_flight++; 1947bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock_irqrestore(&data->txlock, flags); 1957bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 1967bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return rv; 1977bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum} 1987bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 1995e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_intr_complete(struct urb *urb) 2005e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 2015e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev = urb->context; 2025e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 2035e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int err; 2045e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s urb %p status %d count %d", hdev->name, 2065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb, urb->status, urb->actual_length); 2075e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 2095e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return; 2105e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (urb->status == 0) { 2129bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->stat.byte_rx += urb->actual_length; 2139bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 2145e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (hci_recv_fragment(hdev, HCI_EVENT_PKT, 2155e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->transfer_buffer, 2165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->actual_length) < 0) { 2175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s corrupted event packet", hdev->name); 2185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.err_rx++; 2195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 2205e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 2215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 2235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return; 2245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2257bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_mark_last_busy(data->udev); 2265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_anchor_urb(urb, &data->intr_anchor); 2275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann err = usb_submit_urb(urb, GFP_ATOMIC); 2295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 2305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s urb %p failed to resubmit (%d)", 2315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->name, urb, -err); 2325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_unanchor_urb(urb); 2335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 2345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 2355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2362eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmannstatic int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 2375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 2385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 2395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct urb *urb; 2405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned char *buf; 2415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned int pipe; 2425e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int err, size; 2435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 2455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2469bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->intr_ep) 2479bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 2489bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 2492eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann urb = usb_alloc_urb(0, mem_flags); 2505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!urb) 2515e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 2525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2535e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 2545e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2552eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann buf = kmalloc(size, mem_flags); 2565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!buf) { 2575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 2585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 2595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 2605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 2625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_fill_int_urb(urb, data->udev, pipe, buf, size, 2645e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann btusb_intr_complete, hdev, 2655e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->intr_ep->bInterval); 2665e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2675e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->transfer_flags |= URB_FREE_BUFFER; 2685e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2695e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_anchor_urb(urb, &data->intr_anchor); 2705e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2712eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann err = usb_submit_urb(urb, mem_flags); 2725e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 2735e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s urb %p submission failed (%d)", 2745e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->name, urb, -err); 2755e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_unanchor_urb(urb); 2765e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 2775e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2785e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 2795e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2805e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return err; 2815e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 2825e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2835e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_bulk_complete(struct urb *urb) 2845e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 2855e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev = urb->context; 2865e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 2875e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int err; 2885e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2895e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s urb %p status %d count %d", hdev->name, 2905e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb, urb->status, urb->actual_length); 2915e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2925e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 2935e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return; 2945e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 2955e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (urb->status == 0) { 2969bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->stat.byte_rx += urb->actual_length; 2979bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 2985e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, 2995e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->transfer_buffer, 3005e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->actual_length) < 0) { 3015e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s corrupted ACL packet", hdev->name); 3025e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.err_rx++; 3035e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 3045e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 3055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 3075e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return; 3085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3095e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_anchor_urb(urb, &data->bulk_anchor); 310652fd781a52ad6e24b908cd8b83d12699754f253Oliver Neukum usb_mark_last_busy(data->udev); 3115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3125e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann err = usb_submit_urb(urb, GFP_ATOMIC); 3135e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 3145e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s urb %p failed to resubmit (%d)", 3155e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->name, urb, -err); 3165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_unanchor_urb(urb); 3175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 3185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 3195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3202eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmannstatic int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 3215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 3225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 3235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct urb *urb; 3245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned char *buf; 3255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned int pipe; 326290ba200815fdecb4d40dc942499c4ea6d0c4624Vikram Kandukuri int err, size = HCI_MAX_FRAME_SIZE; 3275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 3295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3309bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->bulk_rx_ep) 3319bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 3329bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3332eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann urb = usb_alloc_urb(0, mem_flags); 3345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!urb) 3355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 3365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3372eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann buf = kmalloc(size, mem_flags); 3385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!buf) { 3395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 3405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 3415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 3425e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 3445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_fill_bulk_urb(urb, data->udev, pipe, 3465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann buf, size, btusb_bulk_complete, hdev); 3475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3485e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb->transfer_flags |= URB_FREE_BUFFER; 3495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3507bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_mark_last_busy(data->udev); 3515e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_anchor_urb(urb, &data->bulk_anchor); 3525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3532eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann err = usb_submit_urb(urb, mem_flags); 3545e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 3555e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s urb %p submission failed (%d)", 3565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->name, urb, -err); 3575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_unanchor_urb(urb); 3585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 3595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 3615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return err; 3635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 3645e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 3659bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmannstatic void btusb_isoc_complete(struct urb *urb) 3669bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann{ 3679bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct hci_dev *hdev = urb->context; 3689bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct btusb_data *data = hdev->driver_data; 3699bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann int i, err; 3709bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3719bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_DBG("%s urb %p status %d count %d", hdev->name, 3729bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb, urb->status, urb->actual_length); 3739bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3749bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 3759bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return; 3769bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3779bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (urb->status == 0) { 3789bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann for (i = 0; i < urb->number_of_packets; i++) { 3799bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann unsigned int offset = urb->iso_frame_desc[i].offset; 3809bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann unsigned int length = urb->iso_frame_desc[i].actual_length; 3819bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3829bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (urb->iso_frame_desc[i].status) 3839bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann continue; 3849bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3859bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->stat.byte_rx += length; 3869bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3879bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, 3889bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_buffer + offset, 3899bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann length) < 0) { 3909bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_ERR("%s corrupted SCO packet", hdev->name); 3919bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->stat.err_rx++; 3929bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 3939bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 3949bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 3959bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3969bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 3979bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return; 3989bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 3999bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_anchor_urb(urb, &data->isoc_anchor); 4009bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4019bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann err = usb_submit_urb(urb, GFP_ATOMIC); 4029bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (err < 0) { 4039bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_ERR("%s urb %p failed to resubmit (%d)", 4049bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->name, urb, -err); 4059bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_unanchor_urb(urb); 4069bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 4079bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann} 4089bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4099bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmannstatic void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 4109bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann{ 4119bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann int i, offset = 0; 4129bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4139bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_DBG("len %d mtu %d", len, mtu); 4149bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4159bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 4169bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann i++, offset += mtu, len -= mtu) { 4179bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->iso_frame_desc[i].offset = offset; 4189bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->iso_frame_desc[i].length = mtu; 4199bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 4209bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4219bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (len && i < BTUSB_MAX_ISOC_FRAMES) { 4229bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->iso_frame_desc[i].offset = offset; 4239bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->iso_frame_desc[i].length = len; 4249bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann i++; 4259bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 4269bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4279bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->number_of_packets = i; 4289bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann} 4299bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4302eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmannstatic int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 4319bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann{ 4329bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct btusb_data *data = hdev->driver_data; 4339bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct urb *urb; 4349bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann unsigned char *buf; 4359bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann unsigned int pipe; 4369bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann int err, size; 4379bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4389bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_DBG("%s", hdev->name); 4399bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4409bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc_rx_ep) 4419bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 4429bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4432eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 4449bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!urb) 4459bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENOMEM; 4469bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4479bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 4489bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BTUSB_MAX_ISOC_FRAMES; 4499bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4502eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann buf = kmalloc(size, mem_flags); 4519bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!buf) { 4529bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_free_urb(urb); 4539bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENOMEM; 4549bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 4559bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4569bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 4579bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4589bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->dev = data->udev; 4599bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->pipe = pipe; 4609bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->context = hdev; 4619bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->complete = btusb_isoc_complete; 4629bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->interval = data->isoc_rx_ep->bInterval; 4639bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4649bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 4659bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_buffer = buf; 4669bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_buffer_length = size; 4679bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4689bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann __fill_isoc_descriptor(urb, size, 4699bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 4709bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4719bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_anchor_urb(urb, &data->isoc_anchor); 4729bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4732eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann err = usb_submit_urb(urb, mem_flags); 4749bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (err < 0) { 4759bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_ERR("%s urb %p submission failed (%d)", 4769bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hdev->name, urb, -err); 4779bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_unanchor_urb(urb); 4789bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 4799bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4809bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_free_urb(urb); 4819bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4829bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return err; 4839bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann} 4849bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 4855e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_tx_complete(struct urb *urb) 4865e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 4875e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct sk_buff *skb = urb->context; 4885e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev = (struct hci_dev *) skb->dev; 4897bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct btusb_data *data = hdev->driver_data; 4907bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 4917bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum BT_DBG("%s urb %p status %d count %d", hdev->name, 4927bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum urb, urb->status, urb->actual_length); 4937bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 4947bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (!test_bit(HCI_RUNNING, &hdev->flags)) 4957bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto done; 4967bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 4977bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (!urb->status) 4987bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum hdev->stat.byte_tx += urb->transfer_buffer_length; 4997bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum else 5007bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum hdev->stat.err_tx++; 5017bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5027bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumdone: 5037bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock(&data->txlock); 5047bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->tx_in_flight--; 5057bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock(&data->txlock); 5067bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5077bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum kfree(urb->setup_packet); 5087bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5097bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum kfree_skb(skb); 5107bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum} 5117bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5127bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumstatic void btusb_isoc_tx_complete(struct urb *urb) 5137bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum{ 5147bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct sk_buff *skb = urb->context; 5157bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct hci_dev *hdev = (struct hci_dev *) skb->dev; 5165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s urb %p status %d count %d", hdev->name, 5185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb, urb->status, urb->actual_length); 5195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5205e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 5215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann goto done; 5225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!urb->status) 5245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.byte_tx += urb->transfer_buffer_length; 5255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann else 5265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.err_tx++; 5275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmanndone: 5295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(urb->setup_packet); 5305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree_skb(skb); 5325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 5335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int btusb_open(struct hci_dev *hdev) 5355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 5365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 5375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int err; 5385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 5405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5417bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = usb_autopm_get_interface(data->intf); 5427bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err < 0) 5437bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return err; 5447bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5457bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->intf->needs_remote_wakeup = 1; 5467bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) 5487bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto done; 5495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 5517bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto done; 5525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5532eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 55443c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann if (err < 0) 55543c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann goto failed; 55643c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann 55743c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 5585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 55943c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann usb_kill_anchored_urbs(&data->intr_anchor); 56043c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann goto failed; 5615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 5625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 56343c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann set_bit(BTUSB_BULK_RUNNING, &data->flags); 56443c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann btusb_submit_bulk_urb(hdev, GFP_KERNEL); 56543c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann 5667bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumdone: 5677bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_autopm_put_interface(data->intf); 56843c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann return 0; 56943c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann 57043c2e57f94c15744495fee564610aa24602b3824Marcel Holtmannfailed: 57143c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann clear_bit(BTUSB_INTR_RUNNING, &data->flags); 57243c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann clear_bit(HCI_RUNNING, &hdev->flags); 5737bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_autopm_put_interface(data->intf); 5745e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return err; 5755e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 5765e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5777bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumstatic void btusb_stop_traffic(struct btusb_data *data) 5787bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum{ 5797bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_kill_anchored_urbs(&data->intr_anchor); 5807bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_kill_anchored_urbs(&data->bulk_anchor); 5817bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_kill_anchored_urbs(&data->isoc_anchor); 5827bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum} 5837bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 5845e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int btusb_close(struct hci_dev *hdev) 5855e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 5865e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 5877bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int err; 5885e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5895e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 5905e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 5915e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) 5925e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return 0; 5935e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 594e8c3c3d22b340a406a9aab1b7a9f436636c3de9dMarcel Holtmann cancel_work_sync(&data->work); 595404291ac9e72d118fcadeb939a69b2caa0a0e9caLinus Torvalds cancel_work_sync(&data->waker); 596e8c3c3d22b340a406a9aab1b7a9f436636c3de9dMarcel Holtmann 5979bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 5985e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann clear_bit(BTUSB_BULK_RUNNING, &data->flags); 5995e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann clear_bit(BTUSB_INTR_RUNNING, &data->flags); 6007bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 6017bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum btusb_stop_traffic(data); 6027bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = usb_autopm_get_interface(data->intf); 6037bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err < 0) 6047b8e2c1db0f358bc389dd1ee4633a92d80a5a6d0Oliver Neukum goto failed; 6057bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 6067bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->intf->needs_remote_wakeup = 0; 6077bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_autopm_put_interface(data->intf); 6085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6097b8e2c1db0f358bc389dd1ee4633a92d80a5a6d0Oliver Neukumfailed: 6107b8e2c1db0f358bc389dd1ee4633a92d80a5a6d0Oliver Neukum usb_scuttle_anchored_urbs(&data->deferred); 6115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return 0; 6125e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 6135e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6145e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int btusb_flush(struct hci_dev *hdev) 6155e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 6165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 6175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 6195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6205e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_kill_anchored_urbs(&data->tx_anchor); 6215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return 0; 6235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 6245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int btusb_send_frame(struct sk_buff *skb) 6265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 6275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev = (struct hci_dev *) skb->dev; 6285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 6295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_ctrlrequest *dr; 6305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct urb *urb; 6315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann unsigned int pipe; 6325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int err; 6335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 6355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 6375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -EBUSY; 6385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann switch (bt_cb(skb)->pkt_type) { 6405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann case HCI_COMMAND_PKT: 6415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb = usb_alloc_urb(0, GFP_ATOMIC); 6425e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!urb) 6435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 6445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann dr = kmalloc(sizeof(*dr), GFP_ATOMIC); 6465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!dr) { 6475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 6485e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 6495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 6505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6517a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann dr->bRequestType = data->cmdreq_type; 6525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann dr->bRequest = 0; 6535e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann dr->wIndex = 0; 6545e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann dr->wValue = 0; 6555e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann dr->wLength = __cpu_to_le16(skb->len); 6565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann pipe = usb_sndctrlpipe(data->udev, 0x00); 6585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, 6605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann skb->data, skb->len, btusb_tx_complete, skb); 6615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.cmd_tx++; 6635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann break; 6645e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6655e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann case HCI_ACLDATA_PKT: 6669bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) 6679bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 6689bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 6695e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann urb = usb_alloc_urb(0, GFP_ATOMIC); 6705e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!urb) 6715e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 6725e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6735e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann pipe = usb_sndbulkpipe(data->udev, 6745e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->bulk_tx_ep->bEndpointAddress); 6755e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6765e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_fill_bulk_urb(urb, data->udev, pipe, 6775e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann skb->data, skb->len, btusb_tx_complete, skb); 6785e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6795e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.acl_tx++; 6805e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann break; 6815e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 6825e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann case HCI_SCODATA_PKT: 6839bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) 6849bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 6859bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 6869bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); 6879bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!urb) 6889bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENOMEM; 6899bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 6909bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann pipe = usb_sndisocpipe(data->udev, 6919bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_tx_ep->bEndpointAddress); 6929bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 6939bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->dev = data->udev; 6949bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->pipe = pipe; 6959bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->context = skb; 6967bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum urb->complete = btusb_isoc_tx_complete; 6979bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->interval = data->isoc_tx_ep->bInterval; 6989bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 6999bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_flags = URB_ISO_ASAP; 7009bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_buffer = skb->data; 7019bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann urb->transfer_buffer_length = skb->len; 7029bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7039bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann __fill_isoc_descriptor(urb, skb->len, 7049bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 7059bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->stat.sco_tx++; 7077bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto skip_waking; 7085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7095e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann default: 7105e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -EILSEQ; 7115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 7125e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7137bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = inc_tx(data); 7147bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err) { 7157bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_anchor_urb(urb, &data->deferred); 7167bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum schedule_work(&data->waker); 7177bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = 0; 7187bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto done; 7197bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 7207bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 7217bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumskip_waking: 7225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_anchor_urb(urb, &data->tx_anchor); 7235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann err = usb_submit_urb(urb, GFP_ATOMIC); 7255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 7265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_ERR("%s urb %p submission failed", hdev->name, urb); 7275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(urb->setup_packet); 7285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_unanchor_urb(urb); 7297bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } else { 7307bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_mark_last_busy(data->udev); 7315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 7325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_free_urb(urb); 7345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7357bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumdone: 7365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return err; 7375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 7385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_destruct(struct hci_dev *hdev) 7405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 7415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 7425e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s", hdev->name); 7445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(data); 7465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 7475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7485e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_notify(struct hci_dev *hdev, unsigned int evt) 7495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 7505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = hdev->driver_data; 7515e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("%s evt %d", hdev->name, evt); 7535e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 75443c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann if (hdev->conn_hash.sco_num != data->sco_num) { 75543c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann data->sco_num = hdev->conn_hash.sco_num; 75643c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann schedule_work(&data->work); 757a780efa8124fe7ef23d8ef844d56afe960356615Marcel Holtmann } 7585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 7595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 7609bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmannstatic int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) 7619bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann{ 7629bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct btusb_data *data = hdev->driver_data; 7639bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_interface *intf = data->isoc; 7649bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_endpoint_descriptor *ep_desc; 7659bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann int i, err; 7669bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7679bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc) 7689bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 7699bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7709bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann err = usb_set_interface(data->udev, 1, altsetting); 7719bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (err < 0) { 7729bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_ERR("%s setting interface failed (%d)", hdev->name, -err); 7739bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return err; 7749bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 7759bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7769bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_altsetting = altsetting; 7779bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7789bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_tx_ep = NULL; 7799bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_rx_ep = NULL; 7809bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7819bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 7829bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann ep_desc = &intf->cur_altsetting->endpoint[i].desc; 7839bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7849bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 7859bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_tx_ep = ep_desc; 7869bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann continue; 7879bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 7889bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7899bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 7909bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc_rx_ep = ep_desc; 7919bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann continue; 7929bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 7939bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 7949bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 7959bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 7969bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann BT_ERR("%s invalid SCO descriptors", hdev->name); 7979bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return -ENODEV; 7989bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 7999bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 8009bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return 0; 8019bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann} 8029bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 8035e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_work(struct work_struct *work) 8045e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 8055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = container_of(work, struct btusb_data, work); 8065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev = data->hdev; 8077bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int err; 8085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8099bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (hdev->conn_hash.sco_num > 0) { 8107bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (!data->did_iso_resume) { 8117bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = usb_autopm_get_interface(data->isoc); 8127bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err < 0) { 8137bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 8147bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_kill_anchored_urbs(&data->isoc_anchor); 8157bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return; 8167bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 8177bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 8187bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->did_iso_resume = 1; 8197bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 8209bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (data->isoc_altsetting != 2) { 8219bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 8229bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_kill_anchored_urbs(&data->isoc_anchor); 8239bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 8249bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (__set_isoc_interface(hdev, 2) < 0) 8259bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return; 8269bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 8279bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 8289bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 8292eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 8309bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 8319bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann else 8322eda66f4a0b9803c6a85d5e5ccd8e802bd23b998Marcel Holtmann btusb_submit_isoc_urb(hdev, GFP_KERNEL); 8339bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 8349bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } else { 8359bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 8369bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann usb_kill_anchored_urbs(&data->isoc_anchor); 8379bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 8389bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann __set_isoc_interface(hdev, 0); 8397bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (data->did_iso_resume) { 8407bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->did_iso_resume = 0; 8417bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_autopm_put_interface(data->isoc); 8427bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 8435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 8445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 8455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8467bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumstatic void btusb_waker(struct work_struct *work) 8477bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum{ 8487bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct btusb_data *data = container_of(work, struct btusb_data, waker); 8497bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int err; 8507bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 8517bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = usb_autopm_get_interface(data->intf); 8527bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err < 0) 8537bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return; 8547bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 8557bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_autopm_put_interface(data->intf); 8567bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum} 8577bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 8585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int btusb_probe(struct usb_interface *intf, 8595e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann const struct usb_device_id *id) 8605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 8615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct usb_endpoint_descriptor *ep_desc; 8625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data; 8635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev; 8645e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann int i, err; 8655e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8665e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("intf %p id %p", intf, id); 8675e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 868cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann /* interface numbers are hardcoded in the spec */ 8695e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (intf->cur_altsetting->desc.bInterfaceNumber != 0) 8705e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENODEV; 8715e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8725e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!id->driver_info) { 8735e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann const struct usb_device_id *match; 8745e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann match = usb_match_id(intf, blacklist_table); 8755e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (match) 8765e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann id = match; 8775e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 8785e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 879cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (id->driver_info == BTUSB_IGNORE) 880cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann return -ENODEV; 881cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 882cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) 883cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann return -ENODEV; 884cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 885cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (ignore_csr && id->driver_info & BTUSB_CSR) 886cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann return -ENODEV; 887cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 888cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) 889cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann return -ENODEV; 890cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 8915e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data = kzalloc(sizeof(*data), GFP_KERNEL); 8925e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data) 8935e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 8945e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8955e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 8965e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann ep_desc = &intf->cur_altsetting->endpoint[i].desc; 8975e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 8985e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 8995e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->intr_ep = ep_desc; 9005e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann continue; 9015e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9025e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9035e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 9045e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->bulk_tx_ep = ep_desc; 9055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann continue; 9065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9075e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 9095e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->bulk_rx_ep = ep_desc; 9105e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann continue; 9115e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9125e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9135e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9145e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { 9155e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(data); 9165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENODEV; 9175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9197a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann data->cmdreq_type = USB_TYPE_CLASS; 9207a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 9215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->udev = interface_to_usbdev(intf); 9225fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann data->intf = intf; 9235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann spin_lock_init(&data->lock); 9255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann INIT_WORK(&data->work, btusb_work); 9277bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum INIT_WORK(&data->waker, btusb_waker); 9287bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock_init(&data->txlock); 9295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann init_usb_anchor(&data->tx_anchor); 9315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann init_usb_anchor(&data->intr_anchor); 9325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann init_usb_anchor(&data->bulk_anchor); 9339bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann init_usb_anchor(&data->isoc_anchor); 9347bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum init_usb_anchor(&data->deferred); 9355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev = hci_alloc_dev(); 9375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!hdev) { 9385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(data); 9395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return -ENOMEM; 9405e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 9415e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 942c13854cef4751000b968d4e8ac95796562d5b96fMarcel Holtmann hdev->bus = HCI_USB; 9435e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->driver_data = data; 9445e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9455e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann data->hdev = hdev; 9465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann SET_HCIDEV_DEV(hdev, &intf->dev); 9485e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9495e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->open = btusb_open; 9505e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->close = btusb_close; 9515e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->flush = btusb_flush; 9525e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->send = btusb_send_frame; 9535e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->destruct = btusb_destruct; 9545e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->notify = btusb_notify; 9555e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev->owner = THIS_MODULE; 9575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 9587a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann /* Interface numbers are hardcoded in the specification */ 9599bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc = usb_ifnum_to_if(data->udev, 1); 9609bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 9617a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann if (!reset) 9627a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); 963cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 964cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 965cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (!disable_scofix) 966cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 967cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann } 968cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 9699bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (id->driver_info & BTUSB_BROKEN_ISOC) 9709bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc = NULL; 9719bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 9727a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann if (id->driver_info & BTUSB_DIGIANSWER) { 9737a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann data->cmdreq_type = USB_TYPE_VENDOR; 9747a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); 9757a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann } 9767a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 9777a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann if (id->driver_info & BTUSB_CSR) { 9787a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann struct usb_device *udev = data->udev; 9797a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 9807a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann /* Old firmware would otherwise execute USB reset */ 9817a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) 9827a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); 9837a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann } 9847a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann 985cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (id->driver_info & BTUSB_SNIFFER) { 9869bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann struct usb_device *udev = data->udev; 987cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 9887a9d4020533b5c0c615b6de3be154c9ff30b8cc9Marcel Holtmann /* New sniffer firmware has crippled HCI interface */ 989cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 990cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 9919bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 9929bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann data->isoc = NULL; 993cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann } 994cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 995cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (id->driver_info & BTUSB_BCM92035) { 996cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; 997cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann struct sk_buff *skb; 998cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 999cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 1000cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann if (skb) { 1001cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); 1002cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann skb_queue_tail(&hdev->driver_init, skb); 1003cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann } 1004cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann } 10055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10069bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (data->isoc) { 10079bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann err = usb_driver_claim_interface(&btusb_driver, 10085fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann data->isoc, data); 10099bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann if (err < 0) { 10109bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann hci_free_dev(hdev); 10119bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann kfree(data); 10129bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann return err; 10139bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 10149bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann } 10159bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 10165e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann err = hci_register_dev(hdev); 10175e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (err < 0) { 10185e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hci_free_dev(hdev); 10195e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann kfree(data); 10205e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return err; 10215e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann } 10225e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10235e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_set_intfdata(intf, data); 10245e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10255e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return 0; 10265e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 10275e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10285e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void btusb_disconnect(struct usb_interface *intf) 10295e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 10305e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct btusb_data *data = usb_get_intfdata(intf); 10315e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann struct hci_dev *hdev; 10325e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10335e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_DBG("intf %p", intf); 10345e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10355e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann if (!data) 10365e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return; 10375e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10385e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hdev = data->hdev; 10395e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10405fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann __hci_dev_hold(hdev); 10419bfa35fe422c74882e27cc54450a5f76c96aad68Marcel Holtmann 10425fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann usb_set_intfdata(data->intf, NULL); 10435fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann 10445fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann if (data->isoc) 10455fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann usb_set_intfdata(data->isoc, NULL); 10465e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10475e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hci_unregister_dev(hdev); 10485e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10495fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann if (intf == data->isoc) 10505fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann usb_driver_release_interface(&btusb_driver, data->intf); 10515fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann else if (data->isoc) 10525fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann usb_driver_release_interface(&btusb_driver, data->isoc); 10535fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann 10545fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann __hci_dev_put(hdev); 10555fbcd260c2c52f78cd699f65e9c7af2e60b5380cMarcel Holtmann 10565e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann hci_free_dev(hdev); 10575e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 10585e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 10597bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#ifdef CONFIG_PM 10606a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmannstatic int btusb_suspend(struct usb_interface *intf, pm_message_t message) 10616a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann{ 10626a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann struct btusb_data *data = usb_get_intfdata(intf); 10636a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10646a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann BT_DBG("intf %p", intf); 10656a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10666a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (data->suspend_count++) 10676a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann return 0; 10686a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10697bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock_irq(&data->txlock); 1070fb34d53752d5bec5acc73422e462a9c68aeeaa2aAlan Stern if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { 10717bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum set_bit(BTUSB_SUSPENDING, &data->flags); 10727bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock_irq(&data->txlock); 10737bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } else { 10747bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock_irq(&data->txlock); 10757bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->suspend_count--; 10767bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return -EBUSY; 10777bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 10787bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 10796a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann cancel_work_sync(&data->work); 10806a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10817bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum btusb_stop_traffic(data); 10826a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann usb_kill_anchored_urbs(&data->tx_anchor); 10836a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10846a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann return 0; 10856a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann} 10866a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 10877bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumstatic void play_deferred(struct btusb_data *data) 10887bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum{ 10897bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum struct urb *urb; 10907bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int err; 10917bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 10927bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum while ((urb = usb_get_from_anchor(&data->deferred))) { 10937bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum err = usb_submit_urb(urb, GFP_ATOMIC); 10947bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum if (err < 0) 10957bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum break; 10967bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 10977bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum data->tx_in_flight++; 10987bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 10997bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_scuttle_anchored_urbs(&data->deferred); 11007bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum} 11017bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 11026a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmannstatic int btusb_resume(struct usb_interface *intf) 11036a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann{ 11046a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann struct btusb_data *data = usb_get_intfdata(intf); 11056a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann struct hci_dev *hdev = data->hdev; 11067bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum int err = 0; 11076a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11086a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann BT_DBG("intf %p", intf); 11096a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11106a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (--data->suspend_count) 11116a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann return 0; 11126a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11136a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (!test_bit(HCI_RUNNING, &hdev->flags)) 11147bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto done; 11156a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11166a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 11176a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann err = btusb_submit_intr_urb(hdev, GFP_NOIO); 11186a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (err < 0) { 11196a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann clear_bit(BTUSB_INTR_RUNNING, &data->flags); 11207bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto failed; 11216a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann } 11226a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann } 11236a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11246a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 112543c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 112643c2e57f94c15744495fee564610aa24602b3824Marcel Holtmann if (err < 0) { 11276a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann clear_bit(BTUSB_BULK_RUNNING, &data->flags); 11287bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum goto failed; 11297bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum } 11307bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 11317bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum btusb_submit_bulk_urb(hdev, GFP_NOIO); 11326a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann } 11336a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11346a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 11356a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 11366a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 11376a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann else 11386a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann btusb_submit_isoc_urb(hdev, GFP_NOIO); 11396a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann } 11406a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11417bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock_irq(&data->txlock); 11427bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum play_deferred(data); 11437bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum clear_bit(BTUSB_SUSPENDING, &data->flags); 11447bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock_irq(&data->txlock); 11457bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum schedule_work(&data->work); 11467bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 11476a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann return 0; 11487bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 11497bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumfailed: 11507bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum usb_scuttle_anchored_urbs(&data->deferred); 11517bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukumdone: 11527bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_lock_irq(&data->txlock); 11537bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum clear_bit(BTUSB_SUSPENDING, &data->flags); 11547bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum spin_unlock_irq(&data->txlock); 11557bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum 11567bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum return err; 11576a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann} 11587bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#endif 11596a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann 11605e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic struct usb_driver btusb_driver = { 11615e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann .name = "btusb", 11625e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann .probe = btusb_probe, 11635e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann .disconnect = btusb_disconnect, 11647bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#ifdef CONFIG_PM 11656a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann .suspend = btusb_suspend, 11666a88adf2adf5d6a3b759c2e114da4c5266ca3972Marcel Holtmann .resume = btusb_resume, 11677bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum#endif 11685e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann .id_table = btusb_table, 11697bee549e197c9c0e92b89857a409675c1d5e9dffOliver Neukum .supports_autosuspend = 1, 11705e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann}; 11715e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 11725e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic int __init btusb_init(void) 11735e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 11745e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); 11755e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 11765e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann return usb_register(&btusb_driver); 11775e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 11785e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 11795e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannstatic void __exit btusb_exit(void) 11805e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann{ 11815e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann usb_deregister(&btusb_driver); 11825e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann} 11835e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 11845e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannmodule_init(btusb_init); 11855e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmannmodule_exit(btusb_exit); 11865e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel Holtmann 1187cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(ignore_dga, bool, 0644); 1188cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); 1189cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1190cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(ignore_csr, bool, 0644); 1191cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); 1192cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1193cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(ignore_sniffer, bool, 0644); 1194cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); 1195cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1196cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(disable_scofix, bool, 0644); 1197cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 1198cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1199cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(force_scofix, bool, 0644); 1200cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 1201cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 1202cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmannmodule_param(reset, bool, 0644); 1203cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel HoltmannMODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 1204cfeb414537b1d7c23ba202f198fa4154cd5a4856Marcel Holtmann 12055e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel HoltmannMODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 12065e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel HoltmannMODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 12075e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel HoltmannMODULE_VERSION(VERSION); 12085e23b923da03de7e41f00f5664ae22c4f7dcd2a3Marcel HoltmannMODULE_LICENSE("GPL"); 1209