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drivers/bluetooth/btusb.c
29 KB
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/* * * Generic Bluetooth USB driver * |
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* Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
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* * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/sched.h> #include <linux/errno.h> #include <linux/skbuff.h> #include <linux/usb.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> |
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#define VERSION "0.6" |
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static bool ignore_dga; static bool ignore_csr; static bool ignore_sniffer; static bool disable_scofix; static bool force_scofix; |
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static bool reset = 1; |
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static struct usb_driver btusb_driver; #define BTUSB_IGNORE 0x01 |
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#define BTUSB_DIGIANSWER 0x02 #define BTUSB_CSR 0x04 #define BTUSB_SNIFFER 0x08 #define BTUSB_BCM92035 0x10 #define BTUSB_BROKEN_ISOC 0x20 #define BTUSB_WRONG_SCO_MTU 0x40 |
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#define BTUSB_ATH3012 0x80 |
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static struct usb_device_id btusb_table[] = { /* Generic Bluetooth USB device */ { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, |
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/* Broadcom SoftSailing reporting vendor specific */ { USB_DEVICE(0x05ac, 0x21e1) }, |
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/* Apple MacBookPro 7,1 */ { USB_DEVICE(0x05ac, 0x8213) }, |
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/* Apple iMac11,1 */ { USB_DEVICE(0x05ac, 0x8215) }, |
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/* Apple MacBookPro6,2 */ { USB_DEVICE(0x05ac, 0x8218) }, |
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/* Apple MacBookAir3,1, MacBookAir3,2 */ { USB_DEVICE(0x05ac, 0x821b) }, |
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/* Apple MacBookAir4,1 */ { USB_DEVICE(0x05ac, 0x821f) }, |
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/* Apple MacBookPro8,2 */ { USB_DEVICE(0x05ac, 0x821a) }, |
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/* Apple MacMini5,1 */ { USB_DEVICE(0x05ac, 0x8281) }, |
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/* AVM BlueFRITZ! USB v2.0 */ { USB_DEVICE(0x057c, 0x3800) }, /* Bluetooth Ultraport Module from IBM */ { USB_DEVICE(0x04bf, 0x030a) }, /* ALPS Modules with non-standard id */ { USB_DEVICE(0x044e, 0x3001) }, { USB_DEVICE(0x044e, 0x3002) }, /* Ericsson with non-standard id */ { USB_DEVICE(0x0bdb, 0x1002) }, /* Canyon CN-BTU1 with HID interfaces */ |
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{ USB_DEVICE(0x0c10, 0x0000) }, |
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/* Broadcom BCM20702A0 */ |
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{ USB_DEVICE(0x0a5c, 0x21e3) }, |
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{ USB_DEVICE(0x413c, 0x8197) }, |
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{ } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, btusb_table); static struct usb_device_id blacklist_table[] = { |
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/* CSR BlueCore devices */ { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, /* Broadcom BCM2033 without firmware */ { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, |
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/* Atheros 3011 with sflash firmware */ { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, |
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{ USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, |
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{ USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, |
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/* Atheros AR9285 Malbec with sflash firmware */ { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, |
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/* Atheros 3012 with sflash firmware */ |
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{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
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/* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, |
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/* Broadcom BCM2035 */ |
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{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, |
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/* Broadcom BCM2045 */ |
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{ USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* IBM/Lenovo ThinkPad with Broadcom chip */ |
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{ USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* HP laptop with Broadcom chip */ |
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{ USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* Dell laptop with Broadcom chip */ |
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{ USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* Dell Wireless 370 and 410 devices */ |
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{ USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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{ USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* Belkin F8T012 and F8T013 devices */ { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* Asus WL-BTD202 device */ { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, /* Kensington Bluetooth USB adapter */ { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
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/* RTX Telecom based adapters with buggy SCO support */ { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, /* CONWISE Technology based adapters with buggy SCO support */ { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, |
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/* Digianswer devices */ { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, /* CSR BlueCore Bluetooth Sniffer */ { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, /* Frontline ComProbe Bluetooth Sniffer */ { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, |
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{ } /* Terminating entry */ }; |
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#define BTUSB_MAX_ISOC_FRAMES 10 |
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#define BTUSB_INTR_RUNNING 0 #define BTUSB_BULK_RUNNING 1 |
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#define BTUSB_ISOC_RUNNING 2 |
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#define BTUSB_SUSPENDING 3 |
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#define BTUSB_DID_ISO_RESUME 4 |
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struct btusb_data { struct hci_dev *hdev; struct usb_device *udev; |
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struct usb_interface *intf; |
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struct usb_interface *isoc; |
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spinlock_t lock; unsigned long flags; struct work_struct work; |
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struct work_struct waker; |
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struct usb_anchor tx_anchor; struct usb_anchor intr_anchor; struct usb_anchor bulk_anchor; |
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struct usb_anchor isoc_anchor; |
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struct usb_anchor deferred; int tx_in_flight; spinlock_t txlock; |
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struct usb_endpoint_descriptor *intr_ep; struct usb_endpoint_descriptor *bulk_tx_ep; struct usb_endpoint_descriptor *bulk_rx_ep; |
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struct usb_endpoint_descriptor *isoc_tx_ep; struct usb_endpoint_descriptor *isoc_rx_ep; |
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__u8 cmdreq_type; |
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unsigned int sco_num; |
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int isoc_altsetting; |
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int suspend_count; |
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}; |
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static int inc_tx(struct btusb_data *data) { unsigned long flags; int rv; spin_lock_irqsave(&data->txlock, flags); rv = test_bit(BTUSB_SUSPENDING, &data->flags); if (!rv) data->tx_in_flight++; spin_unlock_irqrestore(&data->txlock, flags); return rv; } |
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static void btusb_intr_complete(struct urb *urb) { struct hci_dev *hdev = urb->context; struct btusb_data *data = hdev->driver_data; int err; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) return; if (urb->status == 0) { |
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hdev->stat.byte_rx += urb->actual_length; |
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if (hci_recv_fragment(hdev, HCI_EVENT_PKT, urb->transfer_buffer, urb->actual_length) < 0) { BT_ERR("%s corrupted event packet", hdev->name); hdev->stat.err_rx++; } } if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) return; |
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usb_mark_last_busy(data->udev); |
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usb_anchor_urb(urb, &data->intr_anchor); err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { |
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/* -EPERM: urb is being killed; * -ENODEV: device got disconnected */ if (err != -EPERM && err != -ENODEV) |
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BT_ERR("%s urb %p failed to resubmit (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); } } |
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static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
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{ struct btusb_data *data = hdev->driver_data; struct urb *urb; unsigned char *buf; unsigned int pipe; int err, size; BT_DBG("%s", hdev->name); |
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if (!data->intr_ep) return -ENODEV; |
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urb = usb_alloc_urb(0, mem_flags); |
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if (!urb) return -ENOMEM; size = le16_to_cpu(data->intr_ep->wMaxPacketSize); |
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buf = kmalloc(size, mem_flags); |
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if (!buf) { usb_free_urb(urb); return -ENOMEM; } pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_intr_complete, hdev, data->intr_ep->bInterval); urb->transfer_flags |= URB_FREE_BUFFER; usb_anchor_urb(urb, &data->intr_anchor); |
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err = usb_submit_urb(urb, mem_flags); |
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if (err < 0) { |
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if (err != -EPERM && err != -ENODEV) BT_ERR("%s urb %p submission failed (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); |
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} usb_free_urb(urb); return err; } static void btusb_bulk_complete(struct urb *urb) { struct hci_dev *hdev = urb->context; struct btusb_data *data = hdev->driver_data; int err; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) return; if (urb->status == 0) { |
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hdev->stat.byte_rx += urb->actual_length; |
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if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, urb->transfer_buffer, urb->actual_length) < 0) { BT_ERR("%s corrupted ACL packet", hdev->name); hdev->stat.err_rx++; } } if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) return; usb_anchor_urb(urb, &data->bulk_anchor); |
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usb_mark_last_busy(data->udev); |
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err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { |
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/* -EPERM: urb is being killed; * -ENODEV: device got disconnected */ if (err != -EPERM && err != -ENODEV) |
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BT_ERR("%s urb %p failed to resubmit (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); } } |
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static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
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{ struct btusb_data *data = hdev->driver_data; struct urb *urb; unsigned char *buf; unsigned int pipe; |
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int err, size = HCI_MAX_FRAME_SIZE; |
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BT_DBG("%s", hdev->name); |
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if (!data->bulk_rx_ep) return -ENODEV; |
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urb = usb_alloc_urb(0, mem_flags); |
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if (!urb) return -ENOMEM; |
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buf = kmalloc(size, mem_flags); |
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if (!buf) { usb_free_urb(urb); return -ENOMEM; } pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, btusb_bulk_complete, hdev); urb->transfer_flags |= URB_FREE_BUFFER; |
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usb_mark_last_busy(data->udev); |
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usb_anchor_urb(urb, &data->bulk_anchor); |
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err = usb_submit_urb(urb, mem_flags); |
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if (err < 0) { |
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if (err != -EPERM && err != -ENODEV) BT_ERR("%s urb %p submission failed (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); |
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} usb_free_urb(urb); return err; } |
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static void btusb_isoc_complete(struct urb *urb) { struct hci_dev *hdev = urb->context; struct btusb_data *data = hdev->driver_data; int i, err; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) return; if (urb->status == 0) { for (i = 0; i < urb->number_of_packets; i++) { unsigned int offset = urb->iso_frame_desc[i].offset; unsigned int length = urb->iso_frame_desc[i].actual_length; if (urb->iso_frame_desc[i].status) continue; hdev->stat.byte_rx += length; if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, urb->transfer_buffer + offset, length) < 0) { BT_ERR("%s corrupted SCO packet", hdev->name); hdev->stat.err_rx++; } } } if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) return; usb_anchor_urb(urb, &data->isoc_anchor); err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { |
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/* -EPERM: urb is being killed; * -ENODEV: device got disconnected */ if (err != -EPERM && err != -ENODEV) |
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BT_ERR("%s urb %p failed to resubmit (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); } } |
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static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
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{ int i, offset = 0; BT_DBG("len %d mtu %d", len, mtu); for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { urb->iso_frame_desc[i].offset = offset; urb->iso_frame_desc[i].length = mtu; } if (len && i < BTUSB_MAX_ISOC_FRAMES) { urb->iso_frame_desc[i].offset = offset; urb->iso_frame_desc[i].length = len; i++; } urb->number_of_packets = i; } |
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static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
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{ struct btusb_data *data = hdev->driver_data; struct urb *urb; unsigned char *buf; unsigned int pipe; int err, size; BT_DBG("%s", hdev->name); if (!data->isoc_rx_ep) return -ENODEV; |
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urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
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if (!urb) return -ENOMEM; size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * BTUSB_MAX_ISOC_FRAMES; |
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buf = kmalloc(size, mem_flags); |
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if (!buf) { usb_free_urb(urb); return -ENOMEM; } pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); |
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usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, hdev, data->isoc_rx_ep->bInterval); |
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urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; |
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__fill_isoc_descriptor(urb, size, le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); usb_anchor_urb(urb, &data->isoc_anchor); |
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err = usb_submit_urb(urb, mem_flags); |
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if (err < 0) { |
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if (err != -EPERM && err != -ENODEV) BT_ERR("%s urb %p submission failed (%d)", |
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hdev->name, urb, -err); usb_unanchor_urb(urb); |
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} usb_free_urb(urb); return err; } |
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static void btusb_tx_complete(struct urb *urb) { struct sk_buff *skb = urb->context; struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
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struct btusb_data *data = hdev->driver_data; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) goto done; if (!urb->status) hdev->stat.byte_tx += urb->transfer_buffer_length; else hdev->stat.err_tx++; done: spin_lock(&data->txlock); data->tx_in_flight--; spin_unlock(&data->txlock); kfree(urb->setup_packet); kfree_skb(skb); } static void btusb_isoc_tx_complete(struct urb *urb) { struct sk_buff *skb = urb->context; struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
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|
521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 |
BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) goto done; if (!urb->status) hdev->stat.byte_tx += urb->transfer_buffer_length; else hdev->stat.err_tx++; done: kfree(urb->setup_packet); kfree_skb(skb); } static int btusb_open(struct hci_dev *hdev) { struct btusb_data *data = hdev->driver_data; int err; BT_DBG("%s", hdev->name); |
7bee549e1
|
545 546 547 548 549 |
err = usb_autopm_get_interface(data->intf); if (err < 0) return err; data->intf->needs_remote_wakeup = 1; |
5e23b923d
|
550 |
if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e1
|
551 |
goto done; |
5e23b923d
|
552 553 |
if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) |
7bee549e1
|
554 |
goto done; |
5e23b923d
|
555 |
|
2eda66f4a
|
556 |
err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f9
|
557 558 559 560 |
if (err < 0) goto failed; err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
5e23b923d
|
561 |
if (err < 0) { |
43c2e57f9
|
562 563 |
usb_kill_anchored_urbs(&data->intr_anchor); goto failed; |
5e23b923d
|
564 |
} |
43c2e57f9
|
565 566 |
set_bit(BTUSB_BULK_RUNNING, &data->flags); btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
7bee549e1
|
567 568 |
done: usb_autopm_put_interface(data->intf); |
43c2e57f9
|
569 570 571 572 573 |
return 0; failed: clear_bit(BTUSB_INTR_RUNNING, &data->flags); clear_bit(HCI_RUNNING, &hdev->flags); |
7bee549e1
|
574 |
usb_autopm_put_interface(data->intf); |
5e23b923d
|
575 576 |
return err; } |
7bee549e1
|
577 578 579 580 581 582 |
static void btusb_stop_traffic(struct btusb_data *data) { usb_kill_anchored_urbs(&data->intr_anchor); usb_kill_anchored_urbs(&data->bulk_anchor); usb_kill_anchored_urbs(&data->isoc_anchor); } |
5e23b923d
|
583 584 585 |
static int btusb_close(struct hci_dev *hdev) { struct btusb_data *data = hdev->driver_data; |
7bee549e1
|
586 |
int err; |
5e23b923d
|
587 588 589 590 591 |
BT_DBG("%s", hdev->name); if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) return 0; |
e8c3c3d22
|
592 |
cancel_work_sync(&data->work); |
404291ac9
|
593 |
cancel_work_sync(&data->waker); |
e8c3c3d22
|
594 |
|
9bfa35fe4
|
595 |
clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923d
|
596 |
clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923d
|
597 |
clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e1
|
598 599 600 601 |
btusb_stop_traffic(data); err = usb_autopm_get_interface(data->intf); if (err < 0) |
7b8e2c1db
|
602 |
goto failed; |
7bee549e1
|
603 604 605 |
data->intf->needs_remote_wakeup = 0; usb_autopm_put_interface(data->intf); |
5e23b923d
|
606 |
|
7b8e2c1db
|
607 608 |
failed: usb_scuttle_anchored_urbs(&data->deferred); |
5e23b923d
|
609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 |
return 0; } static int btusb_flush(struct hci_dev *hdev) { struct btusb_data *data = hdev->driver_data; BT_DBG("%s", hdev->name); usb_kill_anchored_urbs(&data->tx_anchor); return 0; } static int btusb_send_frame(struct sk_buff *skb) { struct hci_dev *hdev = (struct hci_dev *) skb->dev; struct btusb_data *data = hdev->driver_data; struct usb_ctrlrequest *dr; struct urb *urb; unsigned int pipe; int err; BT_DBG("%s", hdev->name); if (!test_bit(HCI_RUNNING, &hdev->flags)) return -EBUSY; switch (bt_cb(skb)->pkt_type) { case HCI_COMMAND_PKT: urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) return -ENOMEM; dr = kmalloc(sizeof(*dr), GFP_ATOMIC); if (!dr) { usb_free_urb(urb); return -ENOMEM; } |
7a9d40205
|
648 |
dr->bRequestType = data->cmdreq_type; |
5e23b923d
|
649 650 651 652 653 654 655 656 657 658 659 660 661 662 |
dr->bRequest = 0; dr->wIndex = 0; dr->wValue = 0; dr->wLength = __cpu_to_le16(skb->len); pipe = usb_sndctrlpipe(data->udev, 0x00); usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, skb->data, skb->len, btusb_tx_complete, skb); hdev->stat.cmd_tx++; break; case HCI_ACLDATA_PKT: |
9fd481e03
|
663 |
if (!data->bulk_tx_ep) |
9bfa35fe4
|
664 |
return -ENODEV; |
5e23b923d
|
665 666 667 668 669 670 671 672 673 |
urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) return -ENOMEM; pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, btusb_tx_complete, skb); |
b8aabfc92
|
674 675 |
if (skb->priority >= HCI_PRIO_MAX - 1) urb->transfer_flags = URB_ISO_ASAP; |
5e23b923d
|
676 677 678 679 |
hdev->stat.acl_tx++; break; case HCI_SCODATA_PKT: |
9bfa35fe4
|
680 681 682 683 684 685 686 687 688 |
if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) return -ENODEV; urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); if (!urb) return -ENOMEM; pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); |
03c2d0e89
|
689 690 691 |
usb_fill_int_urb(urb, data->udev, pipe, skb->data, skb->len, btusb_isoc_tx_complete, skb, data->isoc_tx_ep->bInterval); |
9bfa35fe4
|
692 693 |
urb->transfer_flags = URB_ISO_ASAP; |
9bfa35fe4
|
694 695 696 |
__fill_isoc_descriptor(urb, skb->len, le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); |
5e23b923d
|
697 |
hdev->stat.sco_tx++; |
7bee549e1
|
698 |
goto skip_waking; |
5e23b923d
|
699 700 701 702 |
default: return -EILSEQ; } |
7bee549e1
|
703 704 705 706 707 708 709 710 711 |
err = inc_tx(data); if (err) { usb_anchor_urb(urb, &data->deferred); schedule_work(&data->waker); err = 0; goto done; } skip_waking: |
5e23b923d
|
712 713 714 715 |
usb_anchor_urb(urb, &data->tx_anchor); err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { |
5a9b80e2c
|
716 717 718 |
if (err != -EPERM && err != -ENODEV) BT_ERR("%s urb %p submission failed (%d)", hdev->name, urb, -err); |
5e23b923d
|
719 720 |
kfree(urb->setup_packet); usb_unanchor_urb(urb); |
7bee549e1
|
721 722 |
} else { usb_mark_last_busy(data->udev); |
5e23b923d
|
723 |
} |
7bee549e1
|
724 |
done: |
54a8a79c5
|
725 |
usb_free_urb(urb); |
5e23b923d
|
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 |
return err; } static void btusb_destruct(struct hci_dev *hdev) { struct btusb_data *data = hdev->driver_data; BT_DBG("%s", hdev->name); kfree(data); } static void btusb_notify(struct hci_dev *hdev, unsigned int evt) { struct btusb_data *data = hdev->driver_data; BT_DBG("%s evt %d", hdev->name, evt); |
43c2e57f9
|
743 744 745 |
if (hdev->conn_hash.sco_num != data->sco_num) { data->sco_num = hdev->conn_hash.sco_num; schedule_work(&data->work); |
a780efa81
|
746 |
} |
5e23b923d
|
747 |
} |
42b16b3fb
|
748 |
static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
9bfa35fe4
|
749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 |
{ struct btusb_data *data = hdev->driver_data; struct usb_interface *intf = data->isoc; struct usb_endpoint_descriptor *ep_desc; int i, err; if (!data->isoc) return -ENODEV; err = usb_set_interface(data->udev, 1, altsetting); if (err < 0) { BT_ERR("%s setting interface failed (%d)", hdev->name, -err); return err; } data->isoc_altsetting = altsetting; data->isoc_tx_ep = NULL; data->isoc_rx_ep = NULL; for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { ep_desc = &intf->cur_altsetting->endpoint[i].desc; if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { data->isoc_tx_ep = ep_desc; continue; } if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { data->isoc_rx_ep = ep_desc; continue; } } if (!data->isoc_tx_ep || !data->isoc_rx_ep) { BT_ERR("%s invalid SCO descriptors", hdev->name); return -ENODEV; } return 0; } |
5e23b923d
|
790 791 792 793 |
static void btusb_work(struct work_struct *work) { struct btusb_data *data = container_of(work, struct btusb_data, work); struct hci_dev *hdev = data->hdev; |
7bee549e1
|
794 |
int err; |
5e23b923d
|
795 |
|
9bfa35fe4
|
796 |
if (hdev->conn_hash.sco_num > 0) { |
08b8b6c45
|
797 |
if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
8efdd0cdc
|
798 |
err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
7bee549e1
|
799 800 801 802 803 |
if (err < 0) { clear_bit(BTUSB_ISOC_RUNNING, &data->flags); usb_kill_anchored_urbs(&data->isoc_anchor); return; } |
08b8b6c45
|
804 |
set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e1
|
805 |
} |
9bfa35fe4
|
806 807 808 809 810 811 812 813 814 |
if (data->isoc_altsetting != 2) { clear_bit(BTUSB_ISOC_RUNNING, &data->flags); usb_kill_anchored_urbs(&data->isoc_anchor); if (__set_isoc_interface(hdev, 2) < 0) return; } if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
2eda66f4a
|
815 |
if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe4
|
816 817 |
clear_bit(BTUSB_ISOC_RUNNING, &data->flags); else |
2eda66f4a
|
818 |
btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe4
|
819 820 821 822 823 824 |
} } else { clear_bit(BTUSB_ISOC_RUNNING, &data->flags); usb_kill_anchored_urbs(&data->isoc_anchor); __set_isoc_interface(hdev, 0); |
08b8b6c45
|
825 |
if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
8efdd0cdc
|
826 |
usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
5e23b923d
|
827 828 |
} } |
7bee549e1
|
829 830 831 832 833 834 835 836 837 838 839 |
static void btusb_waker(struct work_struct *work) { struct btusb_data *data = container_of(work, struct btusb_data, waker); int err; err = usb_autopm_get_interface(data->intf); if (err < 0) return; usb_autopm_put_interface(data->intf); } |
5e23b923d
|
840 841 842 843 844 845 846 847 848 |
static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_endpoint_descriptor *ep_desc; struct btusb_data *data; struct hci_dev *hdev; int i, err; BT_DBG("intf %p id %p", intf, id); |
cfeb41453
|
849 |
/* interface numbers are hardcoded in the spec */ |
5e23b923d
|
850 851 852 853 854 855 856 857 858 |
if (intf->cur_altsetting->desc.bInterfaceNumber != 0) return -ENODEV; if (!id->driver_info) { const struct usb_device_id *match; match = usb_match_id(intf, blacklist_table); if (match) id = match; } |
cfeb41453
|
859 860 861 862 863 864 865 866 867 868 869 |
if (id->driver_info == BTUSB_IGNORE) return -ENODEV; if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) return -ENODEV; if (ignore_csr && id->driver_info & BTUSB_CSR) return -ENODEV; if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) return -ENODEV; |
2d25f8b46
|
870 871 872 873 874 875 876 877 |
if (id->driver_info & BTUSB_ATH3012) { struct usb_device *udev = interface_to_usbdev(intf); /* Old firmware would otherwise let ath3k driver load * patch and sysconfig files */ if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) return -ENODEV; } |
5e23b923d
|
878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 |
data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { ep_desc = &intf->cur_altsetting->endpoint[i].desc; if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { data->intr_ep = ep_desc; continue; } if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { data->bulk_tx_ep = ep_desc; continue; } if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { data->bulk_rx_ep = ep_desc; continue; } } if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { kfree(data); return -ENODEV; } |
7a9d40205
|
905 |
data->cmdreq_type = USB_TYPE_CLASS; |
5e23b923d
|
906 |
data->udev = interface_to_usbdev(intf); |
5fbcd260c
|
907 |
data->intf = intf; |
5e23b923d
|
908 909 910 911 |
spin_lock_init(&data->lock); INIT_WORK(&data->work, btusb_work); |
7bee549e1
|
912 913 |
INIT_WORK(&data->waker, btusb_waker); spin_lock_init(&data->txlock); |
5e23b923d
|
914 915 916 917 |
init_usb_anchor(&data->tx_anchor); init_usb_anchor(&data->intr_anchor); init_usb_anchor(&data->bulk_anchor); |
9bfa35fe4
|
918 |
init_usb_anchor(&data->isoc_anchor); |
7bee549e1
|
919 |
init_usb_anchor(&data->deferred); |
5e23b923d
|
920 921 922 923 924 925 |
hdev = hci_alloc_dev(); if (!hdev) { kfree(data); return -ENOMEM; } |
c13854cef
|
926 |
hdev->bus = HCI_USB; |
5e23b923d
|
927 928 929 930 931 932 933 934 935 936 937 938 939 940 |
hdev->driver_data = data; data->hdev = hdev; SET_HCIDEV_DEV(hdev, &intf->dev); hdev->open = btusb_open; hdev->close = btusb_close; hdev->flush = btusb_flush; hdev->send = btusb_send_frame; hdev->destruct = btusb_destruct; hdev->notify = btusb_notify; hdev->owner = THIS_MODULE; |
7a9d40205
|
941 |
/* Interface numbers are hardcoded in the specification */ |
9bfa35fe4
|
942 |
data->isoc = usb_ifnum_to_if(data->udev, 1); |
7a9d40205
|
943 944 |
if (!reset) set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); |
cfeb41453
|
945 946 947 948 949 |
if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { if (!disable_scofix) set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); } |
9bfa35fe4
|
950 951 |
if (id->driver_info & BTUSB_BROKEN_ISOC) data->isoc = NULL; |
7a9d40205
|
952 953 954 955 956 957 958 959 960 961 962 963 |
if (id->driver_info & BTUSB_DIGIANSWER) { data->cmdreq_type = USB_TYPE_VENDOR; set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); } if (id->driver_info & BTUSB_CSR) { struct usb_device *udev = data->udev; /* Old firmware would otherwise execute USB reset */ if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); } |
cfeb41453
|
964 |
if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe4
|
965 |
struct usb_device *udev = data->udev; |
cfeb41453
|
966 |
|
7a9d40205
|
967 |
/* New sniffer firmware has crippled HCI interface */ |
cfeb41453
|
968 969 |
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); |
9bfa35fe4
|
970 971 |
data->isoc = NULL; |
cfeb41453
|
972 973 974 975 976 977 978 979 980 981 982 983 |
} if (id->driver_info & BTUSB_BCM92035) { unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; struct sk_buff *skb; skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); if (skb) { memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); skb_queue_tail(&hdev->driver_init, skb); } } |
5e23b923d
|
984 |
|
9bfa35fe4
|
985 986 |
if (data->isoc) { err = usb_driver_claim_interface(&btusb_driver, |
5fbcd260c
|
987 |
data->isoc, data); |
9bfa35fe4
|
988 989 990 991 992 993 |
if (err < 0) { hci_free_dev(hdev); kfree(data); return err; } } |
5e23b923d
|
994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 |
err = hci_register_dev(hdev); if (err < 0) { hci_free_dev(hdev); kfree(data); return err; } usb_set_intfdata(intf, data); return 0; } static void btusb_disconnect(struct usb_interface *intf) { struct btusb_data *data = usb_get_intfdata(intf); struct hci_dev *hdev; BT_DBG("intf %p", intf); if (!data) return; hdev = data->hdev; |
5fbcd260c
|
1017 |
__hci_dev_hold(hdev); |
9bfa35fe4
|
1018 |
|
5fbcd260c
|
1019 1020 1021 1022 |
usb_set_intfdata(data->intf, NULL); if (data->isoc) usb_set_intfdata(data->isoc, NULL); |
5e23b923d
|
1023 1024 |
hci_unregister_dev(hdev); |
5fbcd260c
|
1025 1026 1027 1028 1029 1030 |
if (intf == data->isoc) usb_driver_release_interface(&btusb_driver, data->intf); else if (data->isoc) usb_driver_release_interface(&btusb_driver, data->isoc); __hci_dev_put(hdev); |
5e23b923d
|
1031 1032 |
hci_free_dev(hdev); } |
7bee549e1
|
1033 |
#ifdef CONFIG_PM |
6a88adf2a
|
1034 1035 1036 1037 1038 1039 1040 1041 |
static int btusb_suspend(struct usb_interface *intf, pm_message_t message) { struct btusb_data *data = usb_get_intfdata(intf); BT_DBG("intf %p", intf); if (data->suspend_count++) return 0; |
7bee549e1
|
1042 |
spin_lock_irq(&data->txlock); |
5b1b0b812
|
1043 |
if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { |
7bee549e1
|
1044 1045 1046 1047 1048 1049 1050 |
set_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); } else { spin_unlock_irq(&data->txlock); data->suspend_count--; return -EBUSY; } |
6a88adf2a
|
1051 |
cancel_work_sync(&data->work); |
7bee549e1
|
1052 |
btusb_stop_traffic(data); |
6a88adf2a
|
1053 |
usb_kill_anchored_urbs(&data->tx_anchor); |
6a88adf2a
|
1054 1055 |
return 0; } |
7bee549e1
|
1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 |
static void play_deferred(struct btusb_data *data) { struct urb *urb; int err; while ((urb = usb_get_from_anchor(&data->deferred))) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) break; data->tx_in_flight++; } usb_scuttle_anchored_urbs(&data->deferred); } |
6a88adf2a
|
1070 1071 1072 1073 |
static int btusb_resume(struct usb_interface *intf) { struct btusb_data *data = usb_get_intfdata(intf); struct hci_dev *hdev = data->hdev; |
7bee549e1
|
1074 |
int err = 0; |
6a88adf2a
|
1075 1076 1077 1078 1079 1080 1081 |
BT_DBG("intf %p", intf); if (--data->suspend_count) return 0; if (!test_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e1
|
1082 |
goto done; |
6a88adf2a
|
1083 1084 1085 1086 1087 |
if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { err = btusb_submit_intr_urb(hdev, GFP_NOIO); if (err < 0) { clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e1
|
1088 |
goto failed; |
6a88adf2a
|
1089 1090 1091 1092 |
} } if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { |
43c2e57f9
|
1093 1094 |
err = btusb_submit_bulk_urb(hdev, GFP_NOIO); if (err < 0) { |
6a88adf2a
|
1095 |
clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e1
|
1096 1097 1098 1099 |
goto failed; } btusb_submit_bulk_urb(hdev, GFP_NOIO); |
6a88adf2a
|
1100 1101 1102 1103 1104 1105 1106 1107 |
} if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) clear_bit(BTUSB_ISOC_RUNNING, &data->flags); else btusb_submit_isoc_urb(hdev, GFP_NOIO); } |
7bee549e1
|
1108 1109 1110 1111 1112 |
spin_lock_irq(&data->txlock); play_deferred(data); clear_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); schedule_work(&data->work); |
6a88adf2a
|
1113 |
return 0; |
7bee549e1
|
1114 1115 1116 1117 1118 1119 1120 1121 1122 |
failed: usb_scuttle_anchored_urbs(&data->deferred); done: spin_lock_irq(&data->txlock); clear_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); return err; |
6a88adf2a
|
1123 |
} |
7bee549e1
|
1124 |
#endif |
6a88adf2a
|
1125 |
|
5e23b923d
|
1126 1127 1128 1129 |
static struct usb_driver btusb_driver = { .name = "btusb", .probe = btusb_probe, .disconnect = btusb_disconnect, |
7bee549e1
|
1130 |
#ifdef CONFIG_PM |
6a88adf2a
|
1131 1132 |
.suspend = btusb_suspend, .resume = btusb_resume, |
7bee549e1
|
1133 |
#endif |
5e23b923d
|
1134 |
.id_table = btusb_table, |
7bee549e1
|
1135 |
.supports_autosuspend = 1, |
5e23b923d
|
1136 |
}; |
93f1508cf
|
1137 |
module_usb_driver(btusb_driver); |
5e23b923d
|
1138 |
|
cfeb41453
|
1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 |
module_param(ignore_dga, bool, 0644); MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); module_param(ignore_csr, bool, 0644); MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); module_param(ignore_sniffer, bool, 0644); MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); module_param(disable_scofix, bool, 0644); MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); module_param(force_scofix, bool, 0644); MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); module_param(reset, bool, 0644); MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); |
5e23b923d
|
1156 1157 1158 1159 |
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); MODULE_VERSION(VERSION); MODULE_LICENSE("GPL"); |