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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/errno.h> |
| 31 | #include <linux/skbuff.h> |
| 32 | |
| 33 | #include <linux/device.h> |
| 34 | #include <linux/firmware.h> |
| 35 | |
| 36 | #include <linux/usb.h> |
| 37 | |
| 38 | #include <net/bluetooth/bluetooth.h> |
| 39 | #include <net/bluetooth/hci_core.h> |
| 40 | |
| 41 | #ifndef CONFIG_BT_HCIBFUSB_DEBUG |
| 42 | #undef BT_DBG |
| 43 | #define BT_DBG(D...) |
| 44 | #endif |
| 45 | |
Marcel Holtmann | 943d56b | 2008-08-07 22:26:55 +0200 | [diff] [blame^] | 46 | #define VERSION "1.2" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | static struct usb_driver bfusb_driver; |
| 49 | |
| 50 | static struct usb_device_id bfusb_table[] = { |
| 51 | /* AVM BlueFRITZ! USB */ |
| 52 | { USB_DEVICE(0x057c, 0x2200) }, |
| 53 | |
| 54 | { } /* Terminating entry */ |
| 55 | }; |
| 56 | |
| 57 | MODULE_DEVICE_TABLE(usb, bfusb_table); |
| 58 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #define BFUSB_MAX_BLOCK_SIZE 256 |
| 60 | |
| 61 | #define BFUSB_BLOCK_TIMEOUT 3000 |
| 62 | |
| 63 | #define BFUSB_TX_PROCESS 1 |
| 64 | #define BFUSB_TX_WAKEUP 2 |
| 65 | |
| 66 | #define BFUSB_MAX_BULK_TX 2 |
| 67 | #define BFUSB_MAX_BULK_RX 2 |
| 68 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 69 | struct bfusb_data { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | struct hci_dev *hdev; |
| 71 | |
| 72 | unsigned long state; |
| 73 | |
| 74 | struct usb_device *udev; |
| 75 | |
| 76 | unsigned int bulk_in_ep; |
| 77 | unsigned int bulk_out_ep; |
| 78 | unsigned int bulk_pkt_size; |
| 79 | |
| 80 | rwlock_t lock; |
| 81 | |
| 82 | struct sk_buff_head transmit_q; |
| 83 | |
| 84 | struct sk_buff *reassembly; |
| 85 | |
| 86 | atomic_t pending_tx; |
| 87 | struct sk_buff_head pending_q; |
| 88 | struct sk_buff_head completed_q; |
| 89 | }; |
| 90 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 91 | struct bfusb_data_scb { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | struct urb *urb; |
| 93 | }; |
| 94 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 95 | static void bfusb_tx_complete(struct urb *urb); |
| 96 | static void bfusb_rx_complete(struct urb *urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 98 | static struct urb *bfusb_get_completed(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | { |
| 100 | struct sk_buff *skb; |
| 101 | struct urb *urb = NULL; |
| 102 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 103 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 105 | skb = skb_dequeue(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | if (skb) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 107 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | kfree_skb(skb); |
| 109 | } |
| 110 | |
| 111 | return urb; |
| 112 | } |
| 113 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 114 | static void bfusb_unlink_urbs(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | { |
| 116 | struct sk_buff *skb; |
| 117 | struct urb *urb; |
| 118 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 119 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 121 | while ((skb = skb_dequeue(&data->pending_q))) { |
| 122 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | usb_kill_urb(urb); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 124 | skb_queue_tail(&data->completed_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
| 126 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 127 | while ((urb = bfusb_get_completed(data))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | usb_free_urb(urb); |
| 129 | } |
| 130 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 131 | 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] | 132 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 133 | struct bfusb_data_scb *scb = (void *) skb->cb; |
| 134 | struct urb *urb = bfusb_get_completed(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | int err, pipe; |
| 136 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 137 | BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 140 | return -ENOMEM; |
| 141 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 142 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 144 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | bfusb_tx_complete, skb); |
| 146 | |
| 147 | scb->urb = urb; |
| 148 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 149 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
| 151 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 152 | if (err) { |
| 153 | BT_ERR("%s bulk tx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 154 | data->hdev->name, urb, err); |
| 155 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | usb_free_urb(urb); |
| 157 | } else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 158 | atomic_inc(&data->pending_tx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
| 160 | return err; |
| 161 | } |
| 162 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 163 | static void bfusb_tx_wakeup(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | { |
| 165 | struct sk_buff *skb; |
| 166 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 167 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 169 | if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) { |
| 170 | set_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | return; |
| 172 | } |
| 173 | |
| 174 | do { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 175 | clear_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 177 | while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) && |
| 178 | (skb = skb_dequeue(&data->transmit_q))) { |
| 179 | if (bfusb_send_bulk(data, skb) < 0) { |
| 180 | skb_queue_head(&data->transmit_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | break; |
| 182 | } |
| 183 | } |
| 184 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 185 | } while (test_bit(BFUSB_TX_WAKEUP, &data->state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 187 | clear_bit(BFUSB_TX_PROCESS, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 190 | static void bfusb_tx_complete(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | { |
| 192 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 193 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 195 | 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] | 196 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 197 | atomic_dec(&data->pending_tx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 199 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | return; |
| 201 | |
| 202 | if (!urb->status) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 203 | data->hdev->stat.byte_tx += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 205 | data->hdev->stat.err_tx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 207 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 209 | skb_unlink(skb, &data->pending_q); |
| 210 | skb_queue_tail(&data->completed_q, skb); |
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 | bfusb_tx_wakeup(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 214 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 218 | static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 220 | struct bfusb_data_scb *scb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | struct sk_buff *skb; |
| 222 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; |
| 223 | |
| 224 | BT_DBG("bfusb %p urb %p", bfusb, urb); |
| 225 | |
| 226 | if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC))) |
| 227 | return -ENOMEM; |
| 228 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 229 | skb = bt_skb_alloc(size, GFP_ATOMIC); |
| 230 | if (!skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | usb_free_urb(urb); |
| 232 | return -ENOMEM; |
| 233 | } |
| 234 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 235 | skb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 237 | scb = (struct bfusb_data_scb *) skb->cb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | scb->urb = urb; |
| 239 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 240 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 242 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | bfusb_rx_complete, skb); |
| 244 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 245 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
| 247 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 248 | if (err) { |
| 249 | BT_ERR("%s bulk rx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 250 | data->hdev->name, urb, err); |
| 251 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | kfree_skb(skb); |
| 253 | usb_free_urb(urb); |
| 254 | } |
| 255 | |
| 256 | return err; |
| 257 | } |
| 258 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 259 | 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] | 260 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 261 | 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] | 262 | |
| 263 | if (hdr & 0x10) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 264 | BT_ERR("%s error in block", data->hdev->name); |
| 265 | if (data->reassembly) |
| 266 | kfree_skb(data->reassembly); |
| 267 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | return -EIO; |
| 269 | } |
| 270 | |
| 271 | if (hdr & 0x04) { |
| 272 | struct sk_buff *skb; |
| 273 | unsigned char pkt_type; |
| 274 | int pkt_len = 0; |
| 275 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 276 | if (data->reassembly) { |
| 277 | BT_ERR("%s unexpected start block", data->hdev->name); |
| 278 | kfree_skb(data->reassembly); |
| 279 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | if (len < 1) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 283 | BT_ERR("%s no packet type found", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | return -EPROTO; |
| 285 | } |
| 286 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 287 | pkt_type = *buf++; len--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
| 289 | switch (pkt_type) { |
| 290 | case HCI_EVENT_PKT: |
| 291 | if (len >= HCI_EVENT_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 292 | struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; |
| 294 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 295 | BT_ERR("%s event block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | return -EILSEQ; |
| 297 | } |
| 298 | break; |
| 299 | |
| 300 | case HCI_ACLDATA_PKT: |
| 301 | if (len >= HCI_ACL_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 302 | struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen); |
| 304 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 305 | BT_ERR("%s data block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | return -EILSEQ; |
| 307 | } |
| 308 | break; |
| 309 | |
| 310 | case HCI_SCODATA_PKT: |
| 311 | if (len >= HCI_SCO_HDR_SIZE) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 312 | struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen; |
| 314 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 315 | BT_ERR("%s audio block is too short", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | return -EILSEQ; |
| 317 | } |
| 318 | break; |
| 319 | } |
| 320 | |
| 321 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); |
| 322 | if (!skb) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 323 | BT_ERR("%s no memory for the packet", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | return -ENOMEM; |
| 325 | } |
| 326 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 327 | skb->dev = (void *) data->hdev; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 328 | bt_cb(skb)->pkt_type = pkt_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 330 | data->reassembly = skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 332 | if (!data->reassembly) { |
| 333 | BT_ERR("%s unexpected continuation block", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | return -EIO; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | if (len > 0) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 339 | memcpy(skb_put(data->reassembly, len), buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
| 341 | if (hdr & 0x08) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 342 | hci_recv_frame(data->reassembly); |
| 343 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | } |
| 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 349 | static void bfusb_rx_complete(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
| 351 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 352 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | unsigned char *buf = urb->transfer_buffer; |
| 354 | int count = urb->actual_length; |
| 355 | int err, hdr, len; |
| 356 | |
| 357 | BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len); |
| 358 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 359 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 361 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | goto unlock; |
| 363 | |
| 364 | if (urb->status || !count) |
| 365 | goto resubmit; |
| 366 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 367 | data->hdev->stat.byte_rx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
| 369 | skb_put(skb, count); |
| 370 | |
| 371 | while (count) { |
| 372 | hdr = buf[0] | (buf[1] << 8); |
| 373 | |
| 374 | if (hdr & 0x4000) { |
| 375 | len = 0; |
| 376 | count -= 2; |
| 377 | buf += 2; |
| 378 | } else { |
| 379 | len = (buf[2] == 0) ? 256 : buf[2]; |
| 380 | count -= 3; |
| 381 | buf += 3; |
| 382 | } |
| 383 | |
| 384 | if (count < len) { |
| 385 | BT_ERR("%s block extends over URB buffer ranges", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 386 | data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | if ((hdr & 0xe1) == 0xc1) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 390 | bfusb_recv_block(data, hdr, buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
| 392 | count -= len; |
| 393 | buf += len; |
| 394 | } |
| 395 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 396 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | kfree_skb(skb); |
| 398 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 399 | bfusb_rx_submit(data, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 401 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | |
| 403 | return; |
| 404 | |
| 405 | resubmit: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 406 | urb->dev = data->udev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
| 408 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 409 | if (err) { |
| 410 | BT_ERR("%s bulk resubmit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 411 | data->hdev->name, urb, err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | unlock: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 415 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
| 417 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | static int bfusb_open(struct hci_dev *hdev) |
| 419 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 420 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | unsigned long flags; |
| 422 | int i, err; |
| 423 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 424 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
| 426 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| 427 | return 0; |
| 428 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 429 | write_lock_irqsave(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 431 | err = bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | if (!err) { |
| 433 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 434 | bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | } else { |
| 436 | clear_bit(HCI_RUNNING, &hdev->flags); |
| 437 | } |
| 438 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 439 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | |
| 441 | return err; |
| 442 | } |
| 443 | |
| 444 | static int bfusb_flush(struct hci_dev *hdev) |
| 445 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 446 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 448 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 450 | skb_queue_purge(&data->transmit_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | static int bfusb_close(struct hci_dev *hdev) |
| 456 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 457 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | unsigned long flags; |
| 459 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 460 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
| 462 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| 463 | return 0; |
| 464 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 465 | write_lock_irqsave(&data->lock, flags); |
| 466 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 468 | bfusb_unlink_urbs(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | bfusb_flush(hdev); |
| 470 | |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | static int bfusb_send_frame(struct sk_buff *skb) |
| 475 | { |
| 476 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 477 | struct bfusb_data *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | struct sk_buff *nskb; |
| 479 | unsigned char buf[3]; |
| 480 | int sent = 0, size, count; |
| 481 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 482 | 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] | 483 | |
| 484 | if (!hdev) { |
| 485 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); |
| 486 | return -ENODEV; |
| 487 | } |
| 488 | |
| 489 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 490 | return -EBUSY; |
| 491 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 492 | data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 494 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | case HCI_COMMAND_PKT: |
| 496 | hdev->stat.cmd_tx++; |
| 497 | break; |
| 498 | case HCI_ACLDATA_PKT: |
| 499 | hdev->stat.acl_tx++; |
| 500 | break; |
| 501 | case HCI_SCODATA_PKT: |
| 502 | hdev->stat.sco_tx++; |
| 503 | break; |
| 504 | }; |
| 505 | |
| 506 | /* Prepend skb with frame type */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 507 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | |
| 509 | count = skb->len; |
| 510 | |
| 511 | /* Max HCI frame size seems to be 1511 + 1 */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 512 | nskb = bt_skb_alloc(count + 32, GFP_ATOMIC); |
| 513 | if (!nskb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | BT_ERR("Can't allocate memory for new packet"); |
| 515 | return -ENOMEM; |
| 516 | } |
| 517 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 518 | nskb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | |
| 520 | while (count) { |
| 521 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE); |
| 522 | |
| 523 | buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0); |
| 524 | buf[1] = 0x00; |
| 525 | buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size; |
| 526 | |
| 527 | memcpy(skb_put(nskb, 3), buf, 3); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 528 | skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | |
| 530 | sent += size; |
| 531 | count -= size; |
| 532 | } |
| 533 | |
| 534 | /* Don't send frame with multiple size of bulk max packet */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 535 | if ((nskb->len % data->bulk_pkt_size) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | buf[0] = 0xdd; |
| 537 | buf[1] = 0x00; |
| 538 | memcpy(skb_put(nskb, 2), buf, 2); |
| 539 | } |
| 540 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 541 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 543 | skb_queue_tail(&data->transmit_q, nskb); |
| 544 | bfusb_tx_wakeup(data); |
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 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | |
| 548 | kfree_skb(skb); |
| 549 | |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | static void bfusb_destruct(struct hci_dev *hdev) |
| 554 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 555 | struct bfusb_data *data = hdev->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 557 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 559 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | } |
| 561 | |
| 562 | static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
| 563 | { |
| 564 | return -ENOIOCTLCMD; |
| 565 | } |
| 566 | |
David Woodhouse | 8187b4f | 2008-05-23 23:56:51 +0100 | [diff] [blame] | 567 | static int bfusb_load_firmware(struct bfusb_data *data, |
| 568 | const unsigned char *firmware, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | { |
| 570 | unsigned char *buf; |
| 571 | int err, pipe, len, size, sent = 0; |
| 572 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 573 | BT_DBG("bfusb %p udev %p", data, data->udev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
| 575 | BT_INFO("BlueFRITZ! USB loading firmware"); |
| 576 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 577 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 579 | if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { |
| 581 | BT_ERR("Can't change to loading configuration"); |
| 582 | return -EBUSY; |
| 583 | } |
| 584 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 585 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
| 587 | buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC); |
| 588 | if (!buf) { |
| 589 | BT_ERR("Can't allocate memory chunk for firmware"); |
| 590 | return -ENOMEM; |
| 591 | } |
| 592 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 593 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | |
| 595 | while (count) { |
| 596 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3); |
| 597 | |
| 598 | memcpy(buf, firmware + sent, size); |
| 599 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 600 | err = usb_bulk_msg(data->udev, pipe, buf, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | &len, BFUSB_BLOCK_TIMEOUT); |
| 602 | |
| 603 | if (err || (len != size)) { |
| 604 | BT_ERR("Error in firmware loading"); |
| 605 | goto error; |
| 606 | } |
| 607 | |
| 608 | sent += size; |
| 609 | count -= size; |
| 610 | } |
| 611 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 612 | err = usb_bulk_msg(data->udev, pipe, NULL, 0, |
| 613 | &len, BFUSB_BLOCK_TIMEOUT); |
| 614 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | BT_ERR("Error in null packet request"); |
| 616 | goto error; |
| 617 | } |
| 618 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 619 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 621 | err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
| 622 | 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 623 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | BT_ERR("Can't change to running configuration"); |
| 625 | goto error; |
| 626 | } |
| 627 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 628 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | |
| 630 | BT_INFO("BlueFRITZ! USB device ready"); |
| 631 | |
| 632 | kfree(buf); |
| 633 | return 0; |
| 634 | |
| 635 | error: |
| 636 | kfree(buf); |
| 637 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 638 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 640 | usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 642 | |
| 643 | return err; |
| 644 | } |
| 645 | |
| 646 | static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 647 | { |
| 648 | const struct firmware *firmware; |
| 649 | struct usb_device *udev = interface_to_usbdev(intf); |
| 650 | struct usb_host_endpoint *bulk_out_ep; |
| 651 | struct usb_host_endpoint *bulk_in_ep; |
| 652 | struct hci_dev *hdev; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 653 | struct bfusb_data *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | |
| 655 | BT_DBG("intf %p id %p", intf, id); |
| 656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | /* Check number of endpoints */ |
| 658 | if (intf->cur_altsetting->desc.bNumEndpoints < 2) |
| 659 | return -EIO; |
| 660 | |
| 661 | bulk_out_ep = &intf->cur_altsetting->endpoint[0]; |
| 662 | bulk_in_ep = &intf->cur_altsetting->endpoint[1]; |
| 663 | |
| 664 | if (!bulk_out_ep || !bulk_in_ep) { |
| 665 | BT_ERR("Bulk endpoints not found"); |
| 666 | goto done; |
| 667 | } |
| 668 | |
| 669 | /* Initialize control structure and load firmware */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 670 | data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL); |
| 671 | if (!data) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | BT_ERR("Can't allocate memory for control structure"); |
| 673 | goto done; |
| 674 | } |
| 675 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 676 | data->udev = udev; |
| 677 | data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress; |
| 678 | data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress; |
| 679 | data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 681 | rwlock_init(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 683 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 685 | skb_queue_head_init(&data->transmit_q); |
| 686 | skb_queue_head_init(&data->pending_q); |
| 687 | skb_queue_head_init(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
| 689 | if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) { |
| 690 | BT_ERR("Firmware request failed"); |
| 691 | goto error; |
| 692 | } |
| 693 | |
| 694 | BT_DBG("firmware data %p size %d", firmware->data, firmware->size); |
| 695 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 696 | if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | BT_ERR("Firmware loading failed"); |
| 698 | goto release; |
| 699 | } |
| 700 | |
| 701 | release_firmware(firmware); |
| 702 | |
| 703 | /* Initialize and register HCI device */ |
| 704 | hdev = hci_alloc_dev(); |
| 705 | if (!hdev) { |
| 706 | BT_ERR("Can't allocate HCI device"); |
| 707 | goto error; |
| 708 | } |
| 709 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 710 | data->hdev = hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | |
| 712 | hdev->type = HCI_USB; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 713 | hdev->driver_data = data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | SET_HCIDEV_DEV(hdev, &intf->dev); |
| 715 | |
| 716 | hdev->open = bfusb_open; |
| 717 | hdev->close = bfusb_close; |
| 718 | hdev->flush = bfusb_flush; |
| 719 | hdev->send = bfusb_send_frame; |
| 720 | hdev->destruct = bfusb_destruct; |
| 721 | hdev->ioctl = bfusb_ioctl; |
| 722 | |
| 723 | hdev->owner = THIS_MODULE; |
| 724 | |
| 725 | if (hci_register_dev(hdev) < 0) { |
| 726 | BT_ERR("Can't register HCI device"); |
| 727 | hci_free_dev(hdev); |
| 728 | goto error; |
| 729 | } |
| 730 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 731 | usb_set_intfdata(intf, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
| 733 | return 0; |
| 734 | |
| 735 | release: |
| 736 | release_firmware(firmware); |
| 737 | |
| 738 | error: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 739 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
| 741 | done: |
| 742 | return -EIO; |
| 743 | } |
| 744 | |
| 745 | static void bfusb_disconnect(struct usb_interface *intf) |
| 746 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 747 | struct bfusb_data *data = usb_get_intfdata(intf); |
| 748 | struct hci_dev *hdev = data->hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | |
| 750 | BT_DBG("intf %p", intf); |
| 751 | |
| 752 | if (!hdev) |
| 753 | return; |
| 754 | |
| 755 | usb_set_intfdata(intf, NULL); |
| 756 | |
| 757 | bfusb_close(hdev); |
| 758 | |
| 759 | if (hci_unregister_dev(hdev) < 0) |
| 760 | BT_ERR("Can't unregister HCI device %s", hdev->name); |
| 761 | |
| 762 | hci_free_dev(hdev); |
| 763 | } |
| 764 | |
| 765 | static struct usb_driver bfusb_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | .name = "bfusb", |
| 767 | .probe = bfusb_probe, |
| 768 | .disconnect = bfusb_disconnect, |
| 769 | .id_table = bfusb_table, |
| 770 | }; |
| 771 | |
| 772 | static int __init bfusb_init(void) |
| 773 | { |
| 774 | int err; |
| 775 | |
| 776 | BT_INFO("BlueFRITZ! USB driver ver %s", VERSION); |
| 777 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 778 | err = usb_register(&bfusb_driver); |
| 779 | if (err < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | BT_ERR("Failed to register BlueFRITZ! USB driver"); |
| 781 | |
| 782 | return err; |
| 783 | } |
| 784 | |
| 785 | static void __exit bfusb_exit(void) |
| 786 | { |
| 787 | usb_deregister(&bfusb_driver); |
| 788 | } |
| 789 | |
| 790 | module_init(bfusb_init); |
| 791 | module_exit(bfusb_exit); |
| 792 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
| 794 | MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION); |
| 795 | MODULE_VERSION(VERSION); |
| 796 | MODULE_LICENSE("GPL"); |
Marcel Holtmann | 2312119 | 2007-02-17 23:59:02 +0100 | [diff] [blame] | 797 | MODULE_FIRMWARE("bfubase.frm"); |