Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * AVM BlueFRITZ! USB driver |
| 4 | * |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 5 | * Copyright (C) 2003-2006 Marcel Holtmann <marcel@holtmann.org> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <linux/module.h> |
| 25 | |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/slab.h> |
| 29 | #include <linux/types.h> |
| 30 | #include <linux/sched.h> |
| 31 | #include <linux/errno.h> |
| 32 | #include <linux/skbuff.h> |
| 33 | |
| 34 | #include <linux/device.h> |
| 35 | #include <linux/firmware.h> |
| 36 | |
| 37 | #include <linux/usb.h> |
| 38 | |
| 39 | #include <net/bluetooth/bluetooth.h> |
| 40 | #include <net/bluetooth/hci_core.h> |
| 41 | |
| 42 | #ifndef CONFIG_BT_HCIBFUSB_DEBUG |
| 43 | #undef BT_DBG |
| 44 | #define BT_DBG(D...) |
| 45 | #endif |
| 46 | |
| 47 | #define VERSION "1.1" |
| 48 | |
| 49 | static int ignore = 0; |
| 50 | |
| 51 | static struct usb_driver bfusb_driver; |
| 52 | |
| 53 | static struct usb_device_id bfusb_table[] = { |
| 54 | /* AVM BlueFRITZ! USB */ |
| 55 | { USB_DEVICE(0x057c, 0x2200) }, |
| 56 | |
| 57 | { } /* Terminating entry */ |
| 58 | }; |
| 59 | |
| 60 | MODULE_DEVICE_TABLE(usb, bfusb_table); |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #define BFUSB_MAX_BLOCK_SIZE 256 |
| 63 | |
| 64 | #define BFUSB_BLOCK_TIMEOUT 3000 |
| 65 | |
| 66 | #define BFUSB_TX_PROCESS 1 |
| 67 | #define BFUSB_TX_WAKEUP 2 |
| 68 | |
| 69 | #define BFUSB_MAX_BULK_TX 2 |
| 70 | #define BFUSB_MAX_BULK_RX 2 |
| 71 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 72 | struct bfusb_data { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | struct hci_dev *hdev; |
| 74 | |
| 75 | unsigned long state; |
| 76 | |
| 77 | struct usb_device *udev; |
| 78 | |
| 79 | unsigned int bulk_in_ep; |
| 80 | unsigned int bulk_out_ep; |
| 81 | unsigned int bulk_pkt_size; |
| 82 | |
| 83 | rwlock_t lock; |
| 84 | |
| 85 | struct sk_buff_head transmit_q; |
| 86 | |
| 87 | struct sk_buff *reassembly; |
| 88 | |
| 89 | atomic_t pending_tx; |
| 90 | struct sk_buff_head pending_q; |
| 91 | struct sk_buff_head completed_q; |
| 92 | }; |
| 93 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 94 | struct bfusb_data_scb { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | struct urb *urb; |
| 96 | }; |
| 97 | |
| 98 | static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs); |
| 99 | static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs); |
| 100 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 101 | static struct urb *bfusb_get_completed(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | { |
| 103 | struct sk_buff *skb; |
| 104 | struct urb *urb = NULL; |
| 105 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 106 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 108 | skb = skb_dequeue(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | if (skb) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 110 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | kfree_skb(skb); |
| 112 | } |
| 113 | |
| 114 | return urb; |
| 115 | } |
| 116 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 117 | static void bfusb_unlink_urbs(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | { |
| 119 | struct sk_buff *skb; |
| 120 | struct urb *urb; |
| 121 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 122 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 124 | while ((skb = skb_dequeue(&data->pending_q))) { |
| 125 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | usb_kill_urb(urb); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 127 | skb_queue_tail(&data->completed_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 130 | while ((urb = bfusb_get_completed(data))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | usb_free_urb(urb); |
| 132 | } |
| 133 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 134 | static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 136 | struct bfusb_data_scb *scb = (void *) skb->cb; |
| 137 | struct urb *urb = bfusb_get_completed(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | int err, pipe; |
| 139 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 140 | BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
| 142 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 143 | return -ENOMEM; |
| 144 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 145 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 147 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | bfusb_tx_complete, skb); |
| 149 | |
| 150 | scb->urb = urb; |
| 151 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 152 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 155 | if (err) { |
| 156 | BT_ERR("%s bulk tx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 157 | data->hdev->name, urb, err); |
| 158 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | usb_free_urb(urb); |
| 160 | } else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 161 | atomic_inc(&data->pending_tx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
| 163 | return err; |
| 164 | } |
| 165 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 166 | static void bfusb_tx_wakeup(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | { |
| 168 | struct sk_buff *skb; |
| 169 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 170 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 172 | if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) { |
| 173 | set_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | return; |
| 175 | } |
| 176 | |
| 177 | do { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 178 | clear_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 180 | while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) && |
| 181 | (skb = skb_dequeue(&data->transmit_q))) { |
| 182 | if (bfusb_send_bulk(data, skb) < 0) { |
| 183 | skb_queue_head(&data->transmit_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | break; |
| 185 | } |
| 186 | } |
| 187 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 188 | } while (test_bit(BFUSB_TX_WAKEUP, &data->state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 190 | clear_bit(BFUSB_TX_PROCESS, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs) |
| 194 | { |
| 195 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 196 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 198 | BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 200 | atomic_dec(&data->pending_tx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 202 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | return; |
| 204 | |
| 205 | if (!urb->status) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 206 | data->hdev->stat.byte_tx += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 208 | data->hdev->stat.err_tx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 210 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 212 | skb_unlink(skb, &data->pending_q); |
| 213 | skb_queue_tail(&data->completed_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 215 | bfusb_tx_wakeup(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 217 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 221 | static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 223 | struct bfusb_data_scb *scb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | struct sk_buff *skb; |
| 225 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; |
| 226 | |
| 227 | BT_DBG("bfusb %p urb %p", bfusb, urb); |
| 228 | |
| 229 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 230 | return -ENOMEM; |
| 231 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 232 | skb = bt_skb_alloc(size, GFP_ATOMIC); |
| 233 | if (!skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | usb_free_urb(urb); |
| 235 | return -ENOMEM; |
| 236 | } |
| 237 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 238 | skb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 240 | scb = (struct bfusb_data_scb *) skb->cb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | scb->urb = urb; |
| 242 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 243 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 245 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | bfusb_rx_complete, skb); |
| 247 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 248 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
| 250 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 251 | if (err) { |
| 252 | BT_ERR("%s bulk rx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 253 | data->hdev->name, urb, err); |
| 254 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | kfree_skb(skb); |
| 256 | usb_free_urb(urb); |
| 257 | } |
| 258 | |
| 259 | return err; |
| 260 | } |
| 261 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 262 | static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 264 | BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | if (hdr & 0x10) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 267 | BT_ERR("%s error in block", data->hdev->name); |
| 268 | if (data->reassembly) |
| 269 | kfree_skb(data->reassembly); |
| 270 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | return -EIO; |
| 272 | } |
| 273 | |
| 274 | if (hdr & 0x04) { |
| 275 | struct sk_buff *skb; |
| 276 | unsigned char pkt_type; |
| 277 | int pkt_len = 0; |
| 278 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 279 | if (data->reassembly) { |
| 280 | BT_ERR("%s unexpected start block", data->hdev->name); |
| 281 | kfree_skb(data->reassembly); |
| 282 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | if (len < 1) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 286 | BT_ERR("%s no packet type found", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | return -EPROTO; |
| 288 | } |
| 289 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 290 | pkt_type = *buf++; len--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | switch (pkt_type) { |
| 293 | case HCI_EVENT_PKT: |
| 294 | if (len >= HCI_EVENT_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 295 | struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; |
| 297 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 298 | BT_ERR("%s event block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | return -EILSEQ; |
| 300 | } |
| 301 | break; |
| 302 | |
| 303 | case HCI_ACLDATA_PKT: |
| 304 | if (len >= HCI_ACL_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 305 | struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen); |
| 307 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 308 | BT_ERR("%s data block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | return -EILSEQ; |
| 310 | } |
| 311 | break; |
| 312 | |
| 313 | case HCI_SCODATA_PKT: |
| 314 | if (len >= HCI_SCO_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 315 | struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen; |
| 317 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 318 | BT_ERR("%s audio block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | return -EILSEQ; |
| 320 | } |
| 321 | break; |
| 322 | } |
| 323 | |
| 324 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); |
| 325 | if (!skb) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 326 | BT_ERR("%s no memory for the packet", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | return -ENOMEM; |
| 328 | } |
| 329 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 330 | skb->dev = (void *) data->hdev; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 331 | bt_cb(skb)->pkt_type = pkt_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 333 | data->reassembly = skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 335 | if (!data->reassembly) { |
| 336 | BT_ERR("%s unexpected continuation block", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | return -EIO; |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | if (len > 0) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 342 | memcpy(skb_put(data->reassembly, len), buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | if (hdr & 0x08) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 345 | hci_recv_frame(data->reassembly); |
| 346 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs) |
| 353 | { |
| 354 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 355 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | unsigned char *buf = urb->transfer_buffer; |
| 357 | int count = urb->actual_length; |
| 358 | int err, hdr, len; |
| 359 | |
| 360 | BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len); |
| 361 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 362 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 364 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | goto unlock; |
| 366 | |
| 367 | if (urb->status || !count) |
| 368 | goto resubmit; |
| 369 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 370 | data->hdev->stat.byte_rx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
| 372 | skb_put(skb, count); |
| 373 | |
| 374 | while (count) { |
| 375 | hdr = buf[0] | (buf[1] << 8); |
| 376 | |
| 377 | if (hdr & 0x4000) { |
| 378 | len = 0; |
| 379 | count -= 2; |
| 380 | buf += 2; |
| 381 | } else { |
| 382 | len = (buf[2] == 0) ? 256 : buf[2]; |
| 383 | count -= 3; |
| 384 | buf += 3; |
| 385 | } |
| 386 | |
| 387 | if (count < len) { |
| 388 | BT_ERR("%s block extends over URB buffer ranges", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 389 | data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | } |
| 391 | |
| 392 | if ((hdr & 0xe1) == 0xc1) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 393 | bfusb_recv_block(data, hdr, buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
| 395 | count -= len; |
| 396 | buf += len; |
| 397 | } |
| 398 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 399 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | kfree_skb(skb); |
| 401 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 402 | bfusb_rx_submit(data, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 404 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | |
| 406 | return; |
| 407 | |
| 408 | resubmit: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 409 | urb->dev = data->udev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
| 411 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 412 | if (err) { |
| 413 | BT_ERR("%s bulk resubmit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 414 | data->hdev->name, urb, err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
| 416 | |
| 417 | unlock: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 418 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
| 420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | static int bfusb_open(struct hci_dev *hdev) |
| 422 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 423 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | unsigned long flags; |
| 425 | int i, err; |
| 426 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 427 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
| 429 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| 430 | return 0; |
| 431 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 432 | write_lock_irqsave(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 434 | err = bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | if (!err) { |
| 436 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 437 | bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | } else { |
| 439 | clear_bit(HCI_RUNNING, &hdev->flags); |
| 440 | } |
| 441 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 442 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | |
| 444 | return err; |
| 445 | } |
| 446 | |
| 447 | static int bfusb_flush(struct hci_dev *hdev) |
| 448 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 449 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 451 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 453 | skb_queue_purge(&data->transmit_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
| 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | static int bfusb_close(struct hci_dev *hdev) |
| 459 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 460 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | unsigned long flags; |
| 462 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 463 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
| 465 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| 466 | return 0; |
| 467 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 468 | write_lock_irqsave(&data->lock, flags); |
| 469 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 471 | bfusb_unlink_urbs(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | bfusb_flush(hdev); |
| 473 | |
| 474 | return 0; |
| 475 | } |
| 476 | |
| 477 | static int bfusb_send_frame(struct sk_buff *skb) |
| 478 | { |
| 479 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 480 | struct bfusb_data *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | struct sk_buff *nskb; |
| 482 | unsigned char buf[3]; |
| 483 | int sent = 0, size, count; |
| 484 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 485 | BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | |
| 487 | if (!hdev) { |
| 488 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); |
| 489 | return -ENODEV; |
| 490 | } |
| 491 | |
| 492 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 493 | return -EBUSY; |
| 494 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 495 | data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 497 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | case HCI_COMMAND_PKT: |
| 499 | hdev->stat.cmd_tx++; |
| 500 | break; |
| 501 | case HCI_ACLDATA_PKT: |
| 502 | hdev->stat.acl_tx++; |
| 503 | break; |
| 504 | case HCI_SCODATA_PKT: |
| 505 | hdev->stat.sco_tx++; |
| 506 | break; |
| 507 | }; |
| 508 | |
| 509 | /* Prepend skb with frame type */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 510 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | |
| 512 | count = skb->len; |
| 513 | |
| 514 | /* Max HCI frame size seems to be 1511 + 1 */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 515 | nskb = bt_skb_alloc(count + 32, GFP_ATOMIC); |
| 516 | if (!nskb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | BT_ERR("Can't allocate memory for new packet"); |
| 518 | return -ENOMEM; |
| 519 | } |
| 520 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 521 | nskb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
| 523 | while (count) { |
| 524 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE); |
| 525 | |
| 526 | buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0); |
| 527 | buf[1] = 0x00; |
| 528 | buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size; |
| 529 | |
| 530 | memcpy(skb_put(nskb, 3), buf, 3); |
| 531 | memcpy(skb_put(nskb, size), skb->data + sent, size); |
| 532 | |
| 533 | sent += size; |
| 534 | count -= size; |
| 535 | } |
| 536 | |
| 537 | /* Don't send frame with multiple size of bulk max packet */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 538 | if ((nskb->len % data->bulk_pkt_size) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | buf[0] = 0xdd; |
| 540 | buf[1] = 0x00; |
| 541 | memcpy(skb_put(nskb, 2), buf, 2); |
| 542 | } |
| 543 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 544 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 546 | skb_queue_tail(&data->transmit_q, nskb); |
| 547 | bfusb_tx_wakeup(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 549 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | |
| 551 | kfree_skb(skb); |
| 552 | |
| 553 | return 0; |
| 554 | } |
| 555 | |
| 556 | static void bfusb_destruct(struct hci_dev *hdev) |
| 557 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 558 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 560 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 562 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | } |
| 564 | |
| 565 | static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
| 566 | { |
| 567 | return -ENOIOCTLCMD; |
| 568 | } |
| 569 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 570 | static int bfusb_load_firmware(struct bfusb_data *data, unsigned char *firmware, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { |
| 572 | unsigned char *buf; |
| 573 | int err, pipe, len, size, sent = 0; |
| 574 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 575 | BT_DBG("bfusb %p udev %p", data, data->udev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
| 577 | BT_INFO("BlueFRITZ! USB loading firmware"); |
| 578 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 579 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 581 | if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { |
| 583 | BT_ERR("Can't change to loading configuration"); |
| 584 | return -EBUSY; |
| 585 | } |
| 586 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 587 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | |
| 589 | buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC); |
| 590 | if (!buf) { |
| 591 | BT_ERR("Can't allocate memory chunk for firmware"); |
| 592 | return -ENOMEM; |
| 593 | } |
| 594 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 595 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | while (count) { |
| 598 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3); |
| 599 | |
| 600 | memcpy(buf, firmware + sent, size); |
| 601 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 602 | err = usb_bulk_msg(data->udev, pipe, buf, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | &len, BFUSB_BLOCK_TIMEOUT); |
| 604 | |
| 605 | if (err || (len != size)) { |
| 606 | BT_ERR("Error in firmware loading"); |
| 607 | goto error; |
| 608 | } |
| 609 | |
| 610 | sent += size; |
| 611 | count -= size; |
| 612 | } |
| 613 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 614 | err = usb_bulk_msg(data->udev, pipe, NULL, 0, |
| 615 | &len, BFUSB_BLOCK_TIMEOUT); |
| 616 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | BT_ERR("Error in null packet request"); |
| 618 | goto error; |
| 619 | } |
| 620 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 621 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 623 | err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
| 624 | 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 625 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | BT_ERR("Can't change to running configuration"); |
| 627 | goto error; |
| 628 | } |
| 629 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 630 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
| 632 | BT_INFO("BlueFRITZ! USB device ready"); |
| 633 | |
| 634 | kfree(buf); |
| 635 | return 0; |
| 636 | |
| 637 | error: |
| 638 | kfree(buf); |
| 639 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 640 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 642 | usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 644 | |
| 645 | return err; |
| 646 | } |
| 647 | |
| 648 | static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 649 | { |
| 650 | const struct firmware *firmware; |
| 651 | struct usb_device *udev = interface_to_usbdev(intf); |
| 652 | struct usb_host_endpoint *bulk_out_ep; |
| 653 | struct usb_host_endpoint *bulk_in_ep; |
| 654 | struct hci_dev *hdev; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 655 | struct bfusb_data *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | |
| 657 | BT_DBG("intf %p id %p", intf, id); |
| 658 | |
| 659 | if (ignore) |
| 660 | return -ENODEV; |
| 661 | |
| 662 | /* Check number of endpoints */ |
| 663 | if (intf->cur_altsetting->desc.bNumEndpoints < 2) |
| 664 | return -EIO; |
| 665 | |
| 666 | bulk_out_ep = &intf->cur_altsetting->endpoint[0]; |
| 667 | bulk_in_ep = &intf->cur_altsetting->endpoint[1]; |
| 668 | |
| 669 | if (!bulk_out_ep || !bulk_in_ep) { |
| 670 | BT_ERR("Bulk endpoints not found"); |
| 671 | goto done; |
| 672 | } |
| 673 | |
| 674 | /* Initialize control structure and load firmware */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 675 | data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL); |
| 676 | if (!data) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | BT_ERR("Can't allocate memory for control structure"); |
| 678 | goto done; |
| 679 | } |
| 680 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 681 | data->udev = udev; |
| 682 | data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress; |
| 683 | data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress; |
| 684 | data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 686 | rwlock_init(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 688 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 690 | skb_queue_head_init(&data->transmit_q); |
| 691 | skb_queue_head_init(&data->pending_q); |
| 692 | skb_queue_head_init(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | |
| 694 | if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) { |
| 695 | BT_ERR("Firmware request failed"); |
| 696 | goto error; |
| 697 | } |
| 698 | |
| 699 | BT_DBG("firmware data %p size %d", firmware->data, firmware->size); |
| 700 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 701 | if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | BT_ERR("Firmware loading failed"); |
| 703 | goto release; |
| 704 | } |
| 705 | |
| 706 | release_firmware(firmware); |
| 707 | |
| 708 | /* Initialize and register HCI device */ |
| 709 | hdev = hci_alloc_dev(); |
| 710 | if (!hdev) { |
| 711 | BT_ERR("Can't allocate HCI device"); |
| 712 | goto error; |
| 713 | } |
| 714 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 715 | data->hdev = hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
| 717 | hdev->type = HCI_USB; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 718 | hdev->driver_data = data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | SET_HCIDEV_DEV(hdev, &intf->dev); |
| 720 | |
| 721 | hdev->open = bfusb_open; |
| 722 | hdev->close = bfusb_close; |
| 723 | hdev->flush = bfusb_flush; |
| 724 | hdev->send = bfusb_send_frame; |
| 725 | hdev->destruct = bfusb_destruct; |
| 726 | hdev->ioctl = bfusb_ioctl; |
| 727 | |
| 728 | hdev->owner = THIS_MODULE; |
| 729 | |
| 730 | if (hci_register_dev(hdev) < 0) { |
| 731 | BT_ERR("Can't register HCI device"); |
| 732 | hci_free_dev(hdev); |
| 733 | goto error; |
| 734 | } |
| 735 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 736 | usb_set_intfdata(intf, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | |
| 738 | return 0; |
| 739 | |
| 740 | release: |
| 741 | release_firmware(firmware); |
| 742 | |
| 743 | error: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 744 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | |
| 746 | done: |
| 747 | return -EIO; |
| 748 | } |
| 749 | |
| 750 | static void bfusb_disconnect(struct usb_interface *intf) |
| 751 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 752 | struct bfusb_data *data = usb_get_intfdata(intf); |
| 753 | struct hci_dev *hdev = data->hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | |
| 755 | BT_DBG("intf %p", intf); |
| 756 | |
| 757 | if (!hdev) |
| 758 | return; |
| 759 | |
| 760 | usb_set_intfdata(intf, NULL); |
| 761 | |
| 762 | bfusb_close(hdev); |
| 763 | |
| 764 | if (hci_unregister_dev(hdev) < 0) |
| 765 | BT_ERR("Can't unregister HCI device %s", hdev->name); |
| 766 | |
| 767 | hci_free_dev(hdev); |
| 768 | } |
| 769 | |
| 770 | static struct usb_driver bfusb_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | .name = "bfusb", |
| 772 | .probe = bfusb_probe, |
| 773 | .disconnect = bfusb_disconnect, |
| 774 | .id_table = bfusb_table, |
| 775 | }; |
| 776 | |
| 777 | static int __init bfusb_init(void) |
| 778 | { |
| 779 | int err; |
| 780 | |
| 781 | BT_INFO("BlueFRITZ! USB driver ver %s", VERSION); |
| 782 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame^] | 783 | err = usb_register(&bfusb_driver); |
| 784 | if (err < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | BT_ERR("Failed to register BlueFRITZ! USB driver"); |
| 786 | |
| 787 | return err; |
| 788 | } |
| 789 | |
| 790 | static void __exit bfusb_exit(void) |
| 791 | { |
| 792 | usb_deregister(&bfusb_driver); |
| 793 | } |
| 794 | |
| 795 | module_init(bfusb_init); |
| 796 | module_exit(bfusb_exit); |
| 797 | |
| 798 | module_param(ignore, bool, 0644); |
| 799 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); |
| 800 | |
| 801 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
| 802 | MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION); |
| 803 | MODULE_VERSION(VERSION); |
| 804 | MODULE_LICENSE("GPL"); |