| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * | |||
| 3 | * AVM BlueFRITZ! USB driver | |||
| 4 | * | |||
| 5 | * Copyright (C) 2003 Marcel Holtmann <marcel@holtmann.org> | |||
| 6 | * | |||
| 7 | * | |||
| 8 | * This program is free software; you can redistribute it and/or modify | |||
| 9 | * it under the terms of the GNU General Public License as published by | |||
| 10 | * the Free Software Foundation; either version 2 of the License, or | |||
| 11 | * (at your option) any later version. | |||
| 12 | * | |||
| 13 | * This program is distributed in the hope that it will be useful, | |||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
| 16 | * GNU General Public License for more details. | |||
| 17 | * | |||
| 18 | * You should have received a copy of the GNU General Public License | |||
| 19 | * along with this program; if not, write to the Free Software | |||
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
| 21 | * | |||
| 22 | */ | |||
| 23 | ||||
| 24 | #include <linux/config.h> | |||
| 25 | #include <linux/module.h> | |||
| 26 | ||||
| 27 | #include <linux/kernel.h> | |||
| 28 | #include <linux/init.h> | |||
| 29 | #include <linux/slab.h> | |||
| 30 | #include <linux/types.h> | |||
| 31 | #include <linux/sched.h> | |||
| 32 | #include <linux/errno.h> | |||
| 33 | #include <linux/skbuff.h> | |||
| 34 | ||||
| 35 | #include <linux/device.h> | |||
| 36 | #include <linux/firmware.h> | |||
| 37 | ||||
| 38 | #include <linux/usb.h> | |||
| 39 | ||||
| 40 | #include <net/bluetooth/bluetooth.h> | |||
| 41 | #include <net/bluetooth/hci_core.h> | |||
| 42 | ||||
| 43 | #ifndef CONFIG_BT_HCIBFUSB_DEBUG | |||
| 44 | #undef BT_DBG | |||
| 45 | #define BT_DBG(D...) | |||
| 46 | #endif | |||
| 47 | ||||
| 48 | #define VERSION "1.1" | |||
| 49 | ||||
| 50 | static int ignore = 0; | |||
| 51 | ||||
| 52 | static struct usb_driver bfusb_driver; | |||
| 53 | ||||
| 54 | static struct usb_device_id bfusb_table[] = { | |||
| 55 | /* AVM BlueFRITZ! USB */ | |||
| 56 | { USB_DEVICE(0x057c, 0x2200) }, | |||
| 57 | ||||
| 58 | { } /* Terminating entry */ | |||
| 59 | }; | |||
| 60 | ||||
| 61 | MODULE_DEVICE_TABLE(usb, bfusb_table); | |||
| 62 | ||||
| 63 | ||||
| 64 | #define BFUSB_MAX_BLOCK_SIZE 256 | |||
| 65 | ||||
| 66 | #define BFUSB_BLOCK_TIMEOUT 3000 | |||
| 67 | ||||
| 68 | #define BFUSB_TX_PROCESS 1 | |||
| 69 | #define BFUSB_TX_WAKEUP 2 | |||
| 70 | ||||
| 71 | #define BFUSB_MAX_BULK_TX 2 | |||
| 72 | #define BFUSB_MAX_BULK_RX 2 | |||
| 73 | ||||
| 74 | struct bfusb { | |||
| 75 | struct hci_dev *hdev; | |||
| 76 | ||||
| 77 | unsigned long state; | |||
| 78 | ||||
| 79 | struct usb_device *udev; | |||
| 80 | ||||
| 81 | unsigned int bulk_in_ep; | |||
| 82 | unsigned int bulk_out_ep; | |||
| 83 | unsigned int bulk_pkt_size; | |||
| 84 | ||||
| 85 | rwlock_t lock; | |||
| 86 | ||||
| 87 | struct sk_buff_head transmit_q; | |||
| 88 | ||||
| 89 | struct sk_buff *reassembly; | |||
| 90 | ||||
| 91 | atomic_t pending_tx; | |||
| 92 | struct sk_buff_head pending_q; | |||
| 93 | struct sk_buff_head completed_q; | |||
| 94 | }; | |||
| 95 | ||||
| 96 | struct bfusb_scb { | |||
| 97 | struct urb *urb; | |||
| 98 | }; | |||
| 99 | ||||
| 100 | static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs); | |||
| 101 | static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs); | |||
| 102 | ||||
| 0 | 0 | - | 103 | static struct urb *bfusb_get_completed(struct bfusb *bfusb) |
| 104 | { | |||
| 105 | struct sk_buff *skb; | |||
| 106 | struct urb *urb = NULL; | |||
| 107 | ||||
| 108 | BT_DBG("bfusb %p", bfusb); | |||
| 109 | ||||
| 110 | skb = skb_dequeue(&bfusb->completed_q); | |||
| 0 | 0 | - | 111 | if (skb) { |
| 112 | urb = ((struct bfusb_scb *) skb->cb)->urb; | |||
| 113 | kfree_skb(skb); | |||
| 114 | } | |||
| 115 | ||||
| 0 | - | 116 | return urb; | |
| 117 | } | |||
| 118 | ||||
| 0 | 0 | - | 119 | static void bfusb_unlink_urbs(struct bfusb *bfusb) |
| 120 | { | |||
| 121 | struct sk_buff *skb; | |||
| 122 | struct urb *urb; | |||
| 123 | ||||
| 124 | BT_DBG("bfusb %p", bfusb); | |||
| 125 | ||||
| 0 | 0 | - | 126 | while ((skb = skb_dequeue(&bfusb->pending_q))) { |
| 127 | urb = ((struct bfusb_scb *) skb->cb)->urb; | |||
| 128 | usb_kill_urb(urb); | |||
| 129 | skb_queue_tail(&bfusb->completed_q, skb); | |||
| 130 | } | |||
| 131 | ||||
| 0 | 0 | - | 132 | while ((urb = bfusb_get_completed(bfusb))) |
| 133 | usb_free_urb(urb); | |||
| 134 | } | |||
| 135 | ||||
| 136 | ||||
| 0 | 0 | - | 137 | static int bfusb_send_bulk(struct bfusb *bfusb, struct sk_buff *skb) |
| 138 | { | |||
| 139 | struct bfusb_scb *scb = (void *) skb->cb; | |||
| 140 | struct urb *urb = bfusb_get_completed(bfusb); | |||
| 141 | int err, pipe; | |||
| 142 | ||||
| 143 | BT_DBG("bfusb %p skb %p len %d", bfusb, skb, skb->len); | |||
| 144 | ||||
| 0 | 0 | - | 145 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 0 | - | 145 | T && !(F) | |
| 0 | - | 145 | T && !(T) | |
| 0 | - | 145 | F && !(_) | |
| 0 | - | 146 | return -ENOMEM; | |
| 147 | ||||
| 148 | pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep); | |||
| 149 | ||||
| 150 | usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, skb->len, | |||
| 151 | bfusb_tx_complete, skb); | |||
| 152 | ||||
| 153 | scb->urb = urb; | |||
| 154 | ||||
| 155 | skb_queue_tail(&bfusb->pending_q, skb); | |||
| 156 | ||||
| 157 | err = usb_submit_urb(urb, GFP_ATOMIC); | |||
| 0 | 0 | - | 158 | if (err) { |
| 159 | BT_ERR("%s bulk tx submit failed urb %p err %d", | |||
| 160 | bfusb->hdev->name, urb, err); | |||
| 161 | skb_unlink(skb, &bfusb->pending_q); | |||
| 162 | usb_free_urb(urb); | |||
| 163 | } else | |||
| 164 | atomic_inc(&bfusb->pending_tx); | |||
| 165 | ||||
| 0 | - | 166 | return err; | |
| 167 | } | |||
| 168 | ||||
| 0 | 0 | - | 169 | static void bfusb_tx_wakeup(struct bfusb *bfusb) |
| 170 | { | |||
| 171 | struct sk_buff *skb; | |||
| 172 | ||||
| 173 | BT_DBG("bfusb %p", bfusb); | |||
| 174 | ||||
| 0 | 0 | - | 175 | if (test_and_set_bit(BFUSB_TX_PROCESS, &bfusb->state)) { |
| 176 | set_bit(BFUSB_TX_WAKEUP, &bfusb->state); | |||
| 0 | - | 177 | return; | |
| 178 | } | |||
| 179 | ||||
| 180 | do { | |||
| 181 | clear_bit(BFUSB_TX_WAKEUP, &bfusb->state); | |||
| 182 | ||||
| 183 | while ((atomic_read(&bfusb->pending_tx) < BFUSB_MAX_BULK_TX) && | |||
| 0 | 0 | - | 184 | (skb = skb_dequeue(&bfusb->transmit_q))) { |
| 0 | - | 184 | (T) && (T) | |
| 0 | - | 184 | (T) && (F) | |
| 0 | - | 184 | (F) && (_) | |
| 0 | 0 | - | 185 | if (bfusb_send_bulk(bfusb, skb) < 0) { |
| 186 | skb_queue_head(&bfusb->transmit_q, skb); | |||
| 0 | - | 187 | break; | |
| 188 | } | |||
| 189 | } | |||
| 190 | ||||
| 0 | 0 | - | 191 | } while (test_bit(BFUSB_TX_WAKEUP, &bfusb->state)); |
| 0 | 0 | - | 191 | ternary-?: __builtin_constant_p ( 2 ) |
| 192 | ||||
| 193 | clear_bit(BFUSB_TX_PROCESS, &bfusb->state); | |||
| 194 | } | |||
| 195 | ||||
| 0 | 0 | - | 196 | static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs) |
| 197 | { | |||
| 198 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |||
| 199 | struct bfusb *bfusb = (struct bfusb *) skb->dev; | |||
| 200 | ||||
| 201 | BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len); | |||
| 202 | ||||
| 203 | atomic_dec(&bfusb->pending_tx); | |||
| 204 | ||||
| 0 | 0 | - | 205 | if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags)) |
| 0 | 0 | - | 205 | ternary-?: __builtin_constant_p ( HCI_RUNNING ) |
| 0 | - | 206 | return; | |
| 207 | ||||
| 0 | 0 | - | 208 | if (!urb->status) |
| 209 | bfusb->hdev->stat.byte_tx += skb->len; | |||
| 210 | else | |||
| 211 | bfusb->hdev->stat.err_tx++; | |||
| 212 | ||||
| 213 | read_lock(&bfusb->lock); | |||
| 213 | do | |||
| 0 | 0 | - | 213 | do-while (0) |
| 0 | 0 | - | 213 | do-while (0) |
| 214 | ||||
| 215 | skb_unlink(skb, &bfusb->pending_q); | |||
| 216 | skb_queue_tail(&bfusb->completed_q, skb); | |||
| 217 | ||||
| 218 | bfusb_tx_wakeup(bfusb); | |||
| 219 | ||||
| 220 | read_unlock(&bfusb->lock); | |||
| 220 | do | |||
| 0 | 0 | - | 220 | do-while (0) |
| 0 | 0 | - | 220 | do-while (0) |
| 221 | } | |||
| 222 | ||||
| 223 | ||||
| 0 | 0 | - | 224 | static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb) |
| 225 | { | |||
| 226 | struct bfusb_scb *scb; | |||
| 227 | struct sk_buff *skb; | |||
| 228 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; | |||
| 229 | ||||
| 230 | BT_DBG("bfusb %p urb %p", bfusb, urb); | |||
| 231 | ||||
| 0 | 0 | - | 232 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 0 | - | 232 | T && !(F) | |
| 0 | - | 232 | T && !(T) | |
| 0 | - | 232 | F && !(_) | |
| 0 | - | 233 | return -ENOMEM; | |
| 234 | ||||
| 0 | 0 | - | 235 | if (!(skb = bt_skb_alloc(size, GFP_ATOMIC))) { |
| 236 | usb_free_urb(urb); | |||
| 0 | - | 237 | return -ENOMEM; | |
| 238 | } | |||
| 239 | ||||
| 240 | skb->dev = (void *) bfusb; | |||
| 241 | ||||
| 242 | scb = (struct bfusb_scb *) skb->cb; | |||
| 243 | scb->urb = urb; | |||
| 244 | ||||
| 245 | pipe = usb_rcvbulkpipe(bfusb->udev, bfusb->bulk_in_ep); | |||
| 246 | ||||
| 247 | usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, size, | |||
| 248 | bfusb_rx_complete, skb); | |||
| 249 | ||||
| 250 | skb_queue_tail(&bfusb->pending_q, skb); | |||
| 251 | ||||
| 252 | err = usb_submit_urb(urb, GFP_ATOMIC); | |||
| 0 | 0 | - | 253 | if (err) { |
| 254 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |||
| 255 | bfusb->hdev->name, urb, err); | |||
| 256 | skb_unlink(skb, &bfusb->pending_q); | |||
| 257 | kfree_skb(skb); | |||
| 258 | usb_free_urb(urb); | |||
| 259 | } | |||
| 260 | ||||
| 0 | - | 261 | return err; | |
| 262 | } | |||
| 263 | ||||
| 0 | 0 | - | 264 | static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *data, int len) |
| 265 | { | |||
| 266 | BT_DBG("bfusb %p hdr 0x%02x data %p len %d", bfusb, hdr, data, len); | |||
| 267 | ||||
| 0 | 0 | - | 268 | if (hdr & 0x10) { |
| 269 | BT_ERR("%s error in block", bfusb->hdev->name); | |||
| 0 | 0 | - | 270 | if (bfusb->reassembly) |
| 271 | kfree_skb(bfusb->reassembly); | |||
| 272 | bfusb->reassembly = NULL; | |||
| 0 | - | 273 | return -EIO; | |
| 274 | } | |||
| 275 | ||||
| 0 | 0 | - | 276 | if (hdr & 0x04) { |
| 277 | struct sk_buff *skb; | |||
| 278 | unsigned char pkt_type; | |||
| 279 | int pkt_len = 0; | |||
| 280 | ||||
| 0 | 0 | - | 281 | if (bfusb->reassembly) { |
| 282 | BT_ERR("%s unexpected start block", bfusb->hdev->name); | |||
| 283 | kfree_skb(bfusb->reassembly); | |||
| 284 | bfusb->reassembly = NULL; | |||
| 285 | } | |||
| 286 | ||||
| 0 | 0 | - | 287 | if (len < 1) { |
| 288 | BT_ERR("%s no packet type found", bfusb->hdev->name); | |||
| 0 | - | 289 | return -EPROTO; | |
| 290 | } | |||
| 291 | ||||
| 292 | pkt_type = *data++; len--; | |||
| 293 | ||||
| 294 | switch (pkt_type) { | |||
| 0 | - | 295 | case HCI_EVENT_PKT: | |
| 0 | 0 | - | 296 | if (len >= HCI_EVENT_HDR_SIZE) { |
| 297 | struct hci_event_hdr *hdr = (struct hci_event_hdr *) data; | |||
| 298 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; | |||
| 299 | } else { | |||
| 300 | BT_ERR("%s event block is too short", bfusb->hdev->name); | |||
| 0 | - | 301 | return -EILSEQ; | |
| 302 | } | |||
| 0 | - | 303 | break; | |
| 304 | ||||
| 0 | - | 305 | case HCI_ACLDATA_PKT: | |
| 0 | 0 | - | 306 | if (len >= HCI_ACL_HDR_SIZE) { |
| 307 | struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) data; | |||
| 308 | pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen); | |||
| 309 | } else { | |||
| 310 | BT_ERR("%s data block is too short", bfusb->hdev->name); | |||
| 0 | - | 311 | return -EILSEQ; | |
| 312 | } | |||
| 0 | - | 313 | break; | |
| 314 | ||||
| 0 | - | 315 | case HCI_SCODATA_PKT: | |
| 0 | 0 | - | 316 | if (len >= HCI_SCO_HDR_SIZE) { |
| 317 | struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) data; | |||
| 318 | pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen; | |||
| 319 | } else { | |||
| 320 | BT_ERR("%s audio block is too short", bfusb->hdev->name); | |||
| 0 | - | 321 | return -EILSEQ; | |
| 322 | } | |||
| 0 | - | 323 | break; | |
| 324 | } | |||
| 325 | ||||
| 326 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); | |||
| 0 | 0 | - | 327 | if (!skb) { |
| 328 | BT_ERR("%s no memory for the packet", bfusb->hdev->name); | |||
| 0 | - | 329 | return -ENOMEM; | |
| 330 | } | |||
| 331 | ||||
| 332 | skb->dev = (void *) bfusb->hdev; | |||
| 333 | bt_cb(skb)->pkt_type = pkt_type; | |||
| 334 | ||||
| 335 | bfusb->reassembly = skb; | |||
| 336 | } else { | |||
| 0 | 0 | - | 337 | if (!bfusb->reassembly) { |
| 338 | BT_ERR("%s unexpected continuation block", bfusb->hdev->name); | |||
| 0 | - | 339 | return -EIO; | |
| 340 | } | |||
| 341 | } | |||
| 342 | ||||
| 0 | 0 | - | 343 | if (len > 0) |
| 344 | memcpy(skb_put(bfusb->reassembly, len), data, len); | |||
| 345 | ||||
| 0 | 0 | - | 346 | if (hdr & 0x08) { |
| 347 | hci_recv_frame(bfusb->reassembly); | |||
| 348 | bfusb->reassembly = NULL; | |||
| 349 | } | |||
| 350 | ||||
| 0 | - | 351 | return 0; | |
| 352 | } | |||
| 353 | ||||
| 0 | 0 | - | 354 | static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs) |
| 355 | { | |||
| 356 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |||
| 357 | struct bfusb *bfusb = (struct bfusb *) skb->dev; | |||
| 358 | unsigned char *buf = urb->transfer_buffer; | |||
| 359 | int count = urb->actual_length; | |||
| 360 | int err, hdr, len; | |||
| 361 | ||||
| 362 | BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len); | |||
| 363 | ||||
| 364 | read_lock(&bfusb->lock); | |||
| 364 | do | |||
| 0 | 0 | - | 364 | do-while (0) |
| 0 | 0 | - | 364 | do-while (0) |
| 365 | ||||
| 0 | 0 | - | 366 | if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags)) |
| 0 | 0 | - | 366 | ternary-?: __builtin_constant_p ( HCI_RUNNING ) |
| 0 | - | 367 | goto unlock; | |
| 368 | ||||
| 0 | 0 | - | 369 | if (urb->status || !count) |
| 0 | - | 369 | T || _ | |
| 0 | - | 369 | F || T | |
| 0 | - | 369 | F || F | |
| 0 | - | 370 | goto resubmit; | |
| 371 | ||||
| 372 | bfusb->hdev->stat.byte_rx += count; | |||
| 373 | ||||
| 374 | skb_put(skb, count); | |||
| 375 | ||||
| 0 | 0 | - | 376 | while (count) { |
| 377 | hdr = buf[0] | (buf[1] << 8); | |||
| 378 | ||||
| 0 | 0 | - | 379 | if (hdr & 0x4000) { |
| 380 | len = 0; | |||
| 381 | count -= 2; | |||
| 382 | buf += 2; | |||
| 383 | } else { | |||
| 384 | len = (buf[2] == 0) ? 256 : buf[2]; | |||
| 0 | 0 | - | 384 | ternary-?: ( buf [ 2 ] == 0 ) |
| 385 | count -= 3; | |||
| 386 | buf += 3; | |||
| 387 | } | |||
| 388 | ||||
| 0 | 0 | - | 389 | if (count < len) { |
| 390 | BT_ERR("%s block extends over URB buffer ranges", | |||
| 391 | bfusb->hdev->name); | |||
| 392 | } | |||
| 393 | ||||
| 0 | 0 | - | 394 | if ((hdr & 0xe1) == 0xc1) |
| 395 | bfusb_recv_block(bfusb, hdr, buf, len); | |||
| 396 | ||||
| 397 | count -= len; | |||
| 398 | buf += len; | |||
| 399 | } | |||
| 400 | ||||
| 401 | skb_unlink(skb, &bfusb->pending_q); | |||
| 402 | kfree_skb(skb); | |||
| 403 | ||||
| 404 | bfusb_rx_submit(bfusb, urb); | |||
| 405 | ||||
| 406 | read_unlock(&bfusb->lock); | |||
| 406 | do | |||
| 0 | 0 | - | 406 | do-while (0) |
| 0 | 0 | - | 406 | do-while (0) |
| 407 | ||||
| 0 | - | 408 | return; | |
| 409 | ||||
| 410 | resubmit: | |||
| 411 | urb->dev = bfusb->udev; | |||
| 412 | ||||
| 413 | err = usb_submit_urb(urb, GFP_ATOMIC); | |||
| 0 | 0 | - | 414 | if (err) { |
| 415 | BT_ERR("%s bulk resubmit failed urb %p err %d", | |||
| 416 | bfusb->hdev->name, urb, err); | |||
| 417 | } | |||
| 418 | ||||
| 419 | unlock: | |||
| 420 | read_unlock(&bfusb->lock); | |||
| 420 | do | |||
| 0 | 0 | - | 420 | do-while (0) |
| 0 | 0 | - | 420 | do-while (0) |
| 421 | } | |||
| 422 | ||||
| 423 | ||||
| 0 | 0 | - | 424 | static int bfusb_open(struct hci_dev *hdev) |
| 425 | { | |||
| 426 | struct bfusb *bfusb = (struct bfusb *) hdev->driver_data; | |||
| 427 | unsigned long flags; | |||
| 428 | int i, err; | |||
| 429 | ||||
| 430 | BT_DBG("hdev %p bfusb %p", hdev, bfusb); | |||
| 431 | ||||
| 0 | 0 | - | 432 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| 0 | - | 433 | return 0; | |
| 434 | ||||
| 435 | write_lock_irqsave(&bfusb->lock, flags); | |||
| 435 | do | |||
| 435 | do | |||
| 0 | 0 | - | 435 | do-while (0) |
| 0 | 0 | - | 435 | do-while (0) |
| 435 | do | |||
| 435 | do | |||
| 0 | 0 | - | 435 | do-while (0) |
| 0 | 0 | - | 435 | do-while (0) |
| 0 | 0 | - | 435 | do-while (0) |
| 436 | ||||
| 437 | err = bfusb_rx_submit(bfusb, NULL); | |||
| 0 | 0 | - | 438 | if (!err) { |
| 0 | 0 | - | 439 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) |
| 440 | bfusb_rx_submit(bfusb, NULL); | |||
| 441 | } else { | |||
| 442 | clear_bit(HCI_RUNNING, &hdev->flags); | |||
| 443 | } | |||
| 444 | ||||
| 445 | write_unlock_irqrestore(&bfusb->lock, flags); | |||
| 445 | do | |||
| 445 | do | |||
| 0 | 0 | - | 445 | do-while (0) |
| 0 | 0 | - | 445 | do-while (0) |
| 0 | 0 | - | 445 | do-while (0) |
| 446 | ||||
| 0 | - | 447 | return err; | |
| 448 | } | |||
| 449 | ||||
| 0 | 0 | - | 450 | static int bfusb_flush(struct hci_dev *hdev) |
| 451 | { | |||
| 452 | struct bfusb *bfusb = (struct bfusb *) hdev->driver_data; | |||
| 453 | ||||
| 454 | BT_DBG("hdev %p bfusb %p", hdev, bfusb); | |||
| 455 | ||||
| 456 | skb_queue_purge(&bfusb->transmit_q); | |||
| 457 | ||||
| 0 | - | 458 | return 0; | |
| 459 | } | |||
| 460 | ||||
| 0 | 0 | - | 461 | static int bfusb_close(struct hci_dev *hdev) |
| 462 | { | |||
| 463 | struct bfusb *bfusb = (struct bfusb *) hdev->driver_data; | |||
| 464 | unsigned long flags; | |||
| 465 | ||||
| 466 | BT_DBG("hdev %p bfusb %p", hdev, bfusb); | |||
| 467 | ||||
| 0 | 0 | - | 468 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| 0 | - | 469 | return 0; | |
| 470 | ||||
| 471 | write_lock_irqsave(&bfusb->lock, flags); | |||
| 471 | do | |||
| 471 | do | |||
| 0 | 0 | - | 471 | do-while (0) |
| 0 | 0 | - | 471 | do-while (0) |
| 471 | do | |||
| 471 | do | |||
| 0 | 0 | - | 471 | do-while (0) |
| 0 | 0 | - | 471 | do-while (0) |
| 0 | 0 | - | 471 | do-while (0) |
| 472 | write_unlock_irqrestore(&bfusb->lock, flags); | |||
| 472 | do | |||
| 472 | do | |||
| 0 | 0 | - | 472 | do-while (0) |
| 0 | 0 | - | 472 | do-while (0) |
| 0 | 0 | - | 472 | do-while (0) |
| 473 | ||||
| 474 | bfusb_unlink_urbs(bfusb); | |||
| 475 | bfusb_flush(hdev); | |||
| 476 | ||||
| 0 | - | 477 | return 0; | |
| 478 | } | |||
| 479 | ||||
| 0 | 0 | - | 480 | static int bfusb_send_frame(struct sk_buff *skb) |
| 481 | { | |||
| 482 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |||
| 483 | struct bfusb *bfusb; | |||
| 484 | struct sk_buff *nskb; | |||
| 485 | unsigned char buf[3]; | |||
| 486 | int sent = 0, size, count; | |||
| 487 | ||||
| 488 | BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len); | |||
| 489 | ||||
| 0 | 0 | - | ||