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 | |
Marcel Holtmann | 943d56b | 2008-08-07 22:26:55 +0200 | [diff] [blame] | 41 | #define VERSION "1.2" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | static struct usb_driver bfusb_driver; |
| 44 | |
Marcel Holtmann | 9712d59 | 2013-10-11 07:46:19 -0700 | [diff] [blame] | 45 | static const struct usb_device_id bfusb_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | /* AVM BlueFRITZ! USB */ |
| 47 | { USB_DEVICE(0x057c, 0x2200) }, |
| 48 | |
| 49 | { } /* Terminating entry */ |
| 50 | }; |
| 51 | |
| 52 | MODULE_DEVICE_TABLE(usb, bfusb_table); |
| 53 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #define BFUSB_MAX_BLOCK_SIZE 256 |
| 55 | |
| 56 | #define BFUSB_BLOCK_TIMEOUT 3000 |
| 57 | |
| 58 | #define BFUSB_TX_PROCESS 1 |
| 59 | #define BFUSB_TX_WAKEUP 2 |
| 60 | |
| 61 | #define BFUSB_MAX_BULK_TX 2 |
| 62 | #define BFUSB_MAX_BULK_RX 2 |
| 63 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 64 | struct bfusb_data { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | struct hci_dev *hdev; |
| 66 | |
| 67 | unsigned long state; |
| 68 | |
| 69 | struct usb_device *udev; |
| 70 | |
| 71 | unsigned int bulk_in_ep; |
| 72 | unsigned int bulk_out_ep; |
| 73 | unsigned int bulk_pkt_size; |
| 74 | |
| 75 | rwlock_t lock; |
| 76 | |
| 77 | struct sk_buff_head transmit_q; |
| 78 | |
| 79 | struct sk_buff *reassembly; |
| 80 | |
| 81 | atomic_t pending_tx; |
| 82 | struct sk_buff_head pending_q; |
| 83 | struct sk_buff_head completed_q; |
| 84 | }; |
| 85 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 86 | struct bfusb_data_scb { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | struct urb *urb; |
| 88 | }; |
| 89 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 90 | static void bfusb_tx_complete(struct urb *urb); |
| 91 | static void bfusb_rx_complete(struct urb *urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 93 | static struct urb *bfusb_get_completed(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | { |
| 95 | struct sk_buff *skb; |
| 96 | struct urb *urb = NULL; |
| 97 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 98 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 100 | skb = skb_dequeue(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | if (skb) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 102 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | kfree_skb(skb); |
| 104 | } |
| 105 | |
| 106 | return urb; |
| 107 | } |
| 108 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 109 | static void bfusb_unlink_urbs(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | { |
| 111 | struct sk_buff *skb; |
| 112 | struct urb *urb; |
| 113 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 114 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 116 | while ((skb = skb_dequeue(&data->pending_q))) { |
| 117 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | usb_kill_urb(urb); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 119 | skb_queue_tail(&data->completed_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | } |
| 121 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 122 | while ((urb = bfusb_get_completed(data))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | usb_free_urb(urb); |
| 124 | } |
| 125 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 126 | 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] | 127 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 128 | struct bfusb_data_scb *scb = (void *) skb->cb; |
| 129 | struct urb *urb = bfusb_get_completed(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | int err, pipe; |
| 131 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 132 | BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 134 | if (!urb) { |
| 135 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 136 | if (!urb) |
| 137 | return -ENOMEM; |
| 138 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 140 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 142 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | bfusb_tx_complete, skb); |
| 144 | |
| 145 | scb->urb = urb; |
| 146 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 147 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
| 149 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 150 | if (err) { |
| 151 | BT_ERR("%s bulk tx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 152 | data->hdev->name, urb, err); |
| 153 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | usb_free_urb(urb); |
| 155 | } else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 156 | atomic_inc(&data->pending_tx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
| 158 | return err; |
| 159 | } |
| 160 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 161 | static void bfusb_tx_wakeup(struct bfusb_data *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | { |
| 163 | struct sk_buff *skb; |
| 164 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 165 | BT_DBG("bfusb %p", data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 167 | if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) { |
| 168 | set_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | return; |
| 170 | } |
| 171 | |
| 172 | do { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 173 | clear_bit(BFUSB_TX_WAKEUP, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 175 | while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) && |
| 176 | (skb = skb_dequeue(&data->transmit_q))) { |
| 177 | if (bfusb_send_bulk(data, skb) < 0) { |
| 178 | skb_queue_head(&data->transmit_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | break; |
| 180 | } |
| 181 | } |
| 182 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 183 | } while (test_bit(BFUSB_TX_WAKEUP, &data->state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 185 | clear_bit(BFUSB_TX_PROCESS, &data->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | } |
| 187 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 188 | static void bfusb_tx_complete(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | { |
| 190 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 191 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 193 | 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] | 194 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 195 | atomic_dec(&data->pending_tx); |
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 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | return; |
| 199 | |
| 200 | if (!urb->status) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 201 | data->hdev->stat.byte_tx += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | else |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 203 | data->hdev->stat.err_tx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 205 | read_lock(&data->lock); |
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 | skb_unlink(skb, &data->pending_q); |
| 208 | skb_queue_tail(&data->completed_q, skb); |
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 | bfusb_tx_wakeup(data); |
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 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 216 | static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 218 | struct bfusb_data_scb *scb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | struct sk_buff *skb; |
| 220 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; |
| 221 | |
Marcel Holtmann | a418b89 | 2008-11-30 12:17:28 +0100 | [diff] [blame] | 222 | BT_DBG("bfusb %p urb %p", data, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 224 | if (!urb) { |
| 225 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 226 | if (!urb) |
| 227 | return -ENOMEM; |
| 228 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 230 | skb = bt_skb_alloc(size, GFP_ATOMIC); |
| 231 | if (!skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | usb_free_urb(urb); |
| 233 | return -ENOMEM; |
| 234 | } |
| 235 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 236 | skb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 238 | scb = (struct bfusb_data_scb *) skb->cb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | scb->urb = urb; |
| 240 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 241 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 243 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | bfusb_rx_complete, skb); |
| 245 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 246 | skb_queue_tail(&data->pending_q, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
| 248 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 249 | if (err) { |
| 250 | BT_ERR("%s bulk rx submit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 251 | data->hdev->name, urb, err); |
| 252 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | kfree_skb(skb); |
| 254 | usb_free_urb(urb); |
| 255 | } |
| 256 | |
| 257 | return err; |
| 258 | } |
| 259 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 260 | 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] | 261 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 262 | 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] | 263 | |
| 264 | if (hdr & 0x10) { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 265 | BT_ERR("%s error in block", data->hdev->name); |
Wei Yongjun | b1fb068 | 2009-02-25 18:09:33 +0800 | [diff] [blame] | 266 | kfree_skb(data->reassembly); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 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 | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 327 | bt_cb(skb)->pkt_type = pkt_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 329 | data->reassembly = skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | } else { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 331 | if (!data->reassembly) { |
| 332 | BT_ERR("%s unexpected continuation block", data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | return -EIO; |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | if (len > 0) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 338 | memcpy(skb_put(data->reassembly, len), buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
| 340 | if (hdr & 0x08) { |
Marcel Holtmann | e1a2617 | 2013-10-10 16:52:43 -0700 | [diff] [blame] | 341 | hci_recv_frame(data->hdev, data->reassembly); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 342 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | return 0; |
| 346 | } |
| 347 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 348 | static void bfusb_rx_complete(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | { |
| 350 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 351 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | unsigned char *buf = urb->transfer_buffer; |
| 353 | int count = urb->actual_length; |
| 354 | int err, hdr, len; |
| 355 | |
Marcel Holtmann | a418b89 | 2008-11-30 12:17:28 +0100 | [diff] [blame] | 356 | 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] | 357 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 358 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 360 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | goto unlock; |
| 362 | |
| 363 | if (urb->status || !count) |
| 364 | goto resubmit; |
| 365 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 366 | data->hdev->stat.byte_rx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
| 368 | skb_put(skb, count); |
| 369 | |
| 370 | while (count) { |
| 371 | hdr = buf[0] | (buf[1] << 8); |
| 372 | |
| 373 | if (hdr & 0x4000) { |
| 374 | len = 0; |
| 375 | count -= 2; |
| 376 | buf += 2; |
| 377 | } else { |
| 378 | len = (buf[2] == 0) ? 256 : buf[2]; |
| 379 | count -= 3; |
| 380 | buf += 3; |
| 381 | } |
| 382 | |
| 383 | if (count < len) { |
| 384 | BT_ERR("%s block extends over URB buffer ranges", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 385 | data->hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | } |
| 387 | |
| 388 | if ((hdr & 0xe1) == 0xc1) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 389 | bfusb_recv_block(data, hdr, buf, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | count -= len; |
| 392 | buf += len; |
| 393 | } |
| 394 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 395 | skb_unlink(skb, &data->pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | kfree_skb(skb); |
| 397 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 398 | bfusb_rx_submit(data, urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 400 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | return; |
| 403 | |
| 404 | resubmit: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 405 | urb->dev = data->udev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
| 407 | err = usb_submit_urb(urb, GFP_ATOMIC); |
| 408 | if (err) { |
| 409 | BT_ERR("%s bulk resubmit failed urb %p err %d", |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 410 | data->hdev->name, urb, err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | unlock: |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 414 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
| 416 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | static int bfusb_open(struct hci_dev *hdev) |
| 418 | { |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 419 | struct bfusb_data *data = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | unsigned long flags; |
| 421 | int i, err; |
| 422 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 423 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
| 425 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
| 426 | return 0; |
| 427 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 428 | write_lock_irqsave(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 430 | err = bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | if (!err) { |
| 432 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 433 | bfusb_rx_submit(data, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } else { |
| 435 | clear_bit(HCI_RUNNING, &hdev->flags); |
| 436 | } |
| 437 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 438 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
| 440 | return err; |
| 441 | } |
| 442 | |
| 443 | static int bfusb_flush(struct hci_dev *hdev) |
| 444 | { |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 445 | struct bfusb_data *data = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 447 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 449 | skb_queue_purge(&data->transmit_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
| 451 | return 0; |
| 452 | } |
| 453 | |
| 454 | static int bfusb_close(struct hci_dev *hdev) |
| 455 | { |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 456 | struct bfusb_data *data = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | unsigned long flags; |
| 458 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 459 | BT_DBG("hdev %p bfusb %p", hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | |
| 461 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
| 462 | return 0; |
| 463 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 464 | write_lock_irqsave(&data->lock, flags); |
| 465 | write_unlock_irqrestore(&data->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 467 | bfusb_unlink_urbs(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | bfusb_flush(hdev); |
| 469 | |
| 470 | return 0; |
| 471 | } |
| 472 | |
Marcel Holtmann | 7bd8f09 | 2013-10-11 06:19:18 -0700 | [diff] [blame] | 473 | static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | { |
Marcel Holtmann | aae2627 | 2013-10-11 07:00:57 -0700 | [diff] [blame] | 475 | struct bfusb_data *data = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | struct sk_buff *nskb; |
| 477 | unsigned char buf[3]; |
| 478 | int sent = 0, size, count; |
| 479 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 480 | 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] | 481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| 483 | return -EBUSY; |
| 484 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 485 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | case HCI_COMMAND_PKT: |
| 487 | hdev->stat.cmd_tx++; |
| 488 | break; |
| 489 | case HCI_ACLDATA_PKT: |
| 490 | hdev->stat.acl_tx++; |
| 491 | break; |
| 492 | case HCI_SCODATA_PKT: |
| 493 | hdev->stat.sco_tx++; |
| 494 | break; |
Prasanna Karthik | a03e33da | 2015-07-05 09:49:27 +0000 | [diff] [blame^] | 495 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | |
| 497 | /* Prepend skb with frame type */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 498 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | |
| 500 | count = skb->len; |
| 501 | |
| 502 | /* Max HCI frame size seems to be 1511 + 1 */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 503 | nskb = bt_skb_alloc(count + 32, GFP_ATOMIC); |
| 504 | if (!nskb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | BT_ERR("Can't allocate memory for new packet"); |
| 506 | return -ENOMEM; |
| 507 | } |
| 508 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 509 | nskb->dev = (void *) data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | |
| 511 | while (count) { |
| 512 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE); |
| 513 | |
| 514 | buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0); |
| 515 | buf[1] = 0x00; |
| 516 | buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size; |
| 517 | |
| 518 | memcpy(skb_put(nskb, 3), buf, 3); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 519 | 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] | 520 | |
| 521 | sent += size; |
| 522 | count -= size; |
| 523 | } |
| 524 | |
| 525 | /* Don't send frame with multiple size of bulk max packet */ |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 526 | if ((nskb->len % data->bulk_pkt_size) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | buf[0] = 0xdd; |
| 528 | buf[1] = 0x00; |
| 529 | memcpy(skb_put(nskb, 2), buf, 2); |
| 530 | } |
| 531 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 532 | read_lock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 534 | skb_queue_tail(&data->transmit_q, nskb); |
| 535 | bfusb_tx_wakeup(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 537 | read_unlock(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | |
| 539 | kfree_skb(skb); |
| 540 | |
| 541 | return 0; |
| 542 | } |
| 543 | |
David Woodhouse | 8187b4f | 2008-05-23 23:56:51 +0100 | [diff] [blame] | 544 | static int bfusb_load_firmware(struct bfusb_data *data, |
| 545 | const unsigned char *firmware, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | { |
| 547 | unsigned char *buf; |
| 548 | int err, pipe, len, size, sent = 0; |
| 549 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 550 | BT_DBG("bfusb %p udev %p", data, data->udev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | |
| 552 | BT_INFO("BlueFRITZ! USB loading firmware"); |
| 553 | |
David Herrmann | 7f103a0 | 2011-10-26 11:22:46 +0200 | [diff] [blame] | 554 | buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL); |
| 555 | if (!buf) { |
| 556 | BT_ERR("Can't allocate memory chunk for firmware"); |
| 557 | return -ENOMEM; |
| 558 | } |
| 559 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 560 | pipe = usb_sndctrlpipe(data->udev, 0); |
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 | if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { |
| 564 | BT_ERR("Can't change to loading configuration"); |
David Herrmann | 7f103a0 | 2011-10-26 11:22:46 +0200 | [diff] [blame] | 565 | kfree(buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | return -EBUSY; |
| 567 | } |
| 568 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 569 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 571 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | |
| 573 | while (count) { |
| 574 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3); |
| 575 | |
| 576 | memcpy(buf, firmware + sent, size); |
| 577 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 578 | err = usb_bulk_msg(data->udev, pipe, buf, size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | &len, BFUSB_BLOCK_TIMEOUT); |
| 580 | |
| 581 | if (err || (len != size)) { |
| 582 | BT_ERR("Error in firmware loading"); |
| 583 | goto error; |
| 584 | } |
| 585 | |
| 586 | sent += size; |
| 587 | count -= size; |
| 588 | } |
| 589 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 590 | err = usb_bulk_msg(data->udev, pipe, NULL, 0, |
| 591 | &len, BFUSB_BLOCK_TIMEOUT); |
| 592 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | BT_ERR("Error in null packet request"); |
| 594 | goto error; |
| 595 | } |
| 596 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 597 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 599 | err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
| 600 | 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 601 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | BT_ERR("Can't change to running configuration"); |
| 603 | goto error; |
| 604 | } |
| 605 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 606 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
| 608 | BT_INFO("BlueFRITZ! USB device ready"); |
| 609 | |
| 610 | kfree(buf); |
| 611 | return 0; |
| 612 | |
| 613 | error: |
| 614 | kfree(buf); |
| 615 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 616 | pipe = usb_sndctrlpipe(data->udev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 618 | usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| 620 | |
| 621 | return err; |
| 622 | } |
| 623 | |
| 624 | static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| 625 | { |
| 626 | const struct firmware *firmware; |
| 627 | struct usb_device *udev = interface_to_usbdev(intf); |
| 628 | struct usb_host_endpoint *bulk_out_ep; |
| 629 | struct usb_host_endpoint *bulk_in_ep; |
| 630 | struct hci_dev *hdev; |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 631 | struct bfusb_data *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
| 633 | BT_DBG("intf %p id %p", intf, id); |
| 634 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | /* Check number of endpoints */ |
| 636 | if (intf->cur_altsetting->desc.bNumEndpoints < 2) |
| 637 | return -EIO; |
| 638 | |
| 639 | bulk_out_ep = &intf->cur_altsetting->endpoint[0]; |
| 640 | bulk_in_ep = &intf->cur_altsetting->endpoint[1]; |
| 641 | |
| 642 | if (!bulk_out_ep || !bulk_in_ep) { |
| 643 | BT_ERR("Bulk endpoints not found"); |
| 644 | goto done; |
| 645 | } |
| 646 | |
| 647 | /* Initialize control structure and load firmware */ |
Sachin Kamat | 0213cd8 | 2012-07-27 12:38:32 +0530 | [diff] [blame] | 648 | data = devm_kzalloc(&intf->dev, sizeof(struct bfusb_data), GFP_KERNEL); |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 649 | if (!data) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | BT_ERR("Can't allocate memory for control structure"); |
| 651 | goto done; |
| 652 | } |
| 653 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 654 | data->udev = udev; |
| 655 | data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress; |
| 656 | data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress; |
| 657 | data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 659 | rwlock_init(&data->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 661 | data->reassembly = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 663 | skb_queue_head_init(&data->transmit_q); |
| 664 | skb_queue_head_init(&data->pending_q); |
| 665 | skb_queue_head_init(&data->completed_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | |
| 667 | if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) { |
| 668 | BT_ERR("Firmware request failed"); |
Sachin Kamat | 0213cd8 | 2012-07-27 12:38:32 +0530 | [diff] [blame] | 669 | goto done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | } |
| 671 | |
Marcel Holtmann | a418b89 | 2008-11-30 12:17:28 +0100 | [diff] [blame] | 672 | BT_DBG("firmware data %p size %zu", firmware->data, firmware->size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 674 | if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | BT_ERR("Firmware loading failed"); |
| 676 | goto release; |
| 677 | } |
| 678 | |
| 679 | release_firmware(firmware); |
| 680 | |
| 681 | /* Initialize and register HCI device */ |
| 682 | hdev = hci_alloc_dev(); |
| 683 | if (!hdev) { |
| 684 | BT_ERR("Can't allocate HCI device"); |
Sachin Kamat | 0213cd8 | 2012-07-27 12:38:32 +0530 | [diff] [blame] | 685 | goto done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | } |
| 687 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 688 | data->hdev = hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Marcel Holtmann | c13854c | 2010-02-08 15:27:07 +0100 | [diff] [blame] | 690 | hdev->bus = HCI_USB; |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 691 | hci_set_drvdata(hdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | SET_HCIDEV_DEV(hdev, &intf->dev); |
| 693 | |
Marcel Holtmann | 19cf55a | 2013-10-10 10:50:00 -0700 | [diff] [blame] | 694 | hdev->open = bfusb_open; |
| 695 | hdev->close = bfusb_close; |
| 696 | hdev->flush = bfusb_flush; |
| 697 | hdev->send = bfusb_send_frame; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
Marcel Holtmann | 9ef80d40 | 2014-12-26 04:42:32 +0100 | [diff] [blame] | 699 | set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); |
| 700 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | if (hci_register_dev(hdev) < 0) { |
| 702 | BT_ERR("Can't register HCI device"); |
| 703 | hci_free_dev(hdev); |
Sachin Kamat | 0213cd8 | 2012-07-27 12:38:32 +0530 | [diff] [blame] | 704 | goto done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | } |
| 706 | |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 707 | usb_set_intfdata(intf, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | |
| 709 | return 0; |
| 710 | |
| 711 | release: |
| 712 | release_firmware(firmware); |
| 713 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | done: |
| 715 | return -EIO; |
| 716 | } |
| 717 | |
| 718 | static void bfusb_disconnect(struct usb_interface *intf) |
| 719 | { |
Marcel Holtmann | 9c72435 | 2006-07-06 15:45:23 +0200 | [diff] [blame] | 720 | struct bfusb_data *data = usb_get_intfdata(intf); |
| 721 | struct hci_dev *hdev = data->hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
| 723 | BT_DBG("intf %p", intf); |
| 724 | |
| 725 | if (!hdev) |
| 726 | return; |
| 727 | |
| 728 | usb_set_intfdata(intf, NULL); |
| 729 | |
| 730 | bfusb_close(hdev); |
| 731 | |
David Herrmann | 13ea401 | 2011-10-26 10:43:18 +0200 | [diff] [blame] | 732 | hci_unregister_dev(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | hci_free_dev(hdev); |
| 734 | } |
| 735 | |
| 736 | static struct usb_driver bfusb_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | .name = "bfusb", |
| 738 | .probe = bfusb_probe, |
| 739 | .disconnect = bfusb_disconnect, |
| 740 | .id_table = bfusb_table, |
Sarah Sharp | e1f12eb | 2012-04-23 10:08:51 -0700 | [diff] [blame] | 741 | .disable_hub_initiated_lpm = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | }; |
| 743 | |
Greg Kroah-Hartman | 93f1508 | 2011-11-18 09:47:34 -0800 | [diff] [blame] | 744 | module_usb_driver(bfusb_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
| 747 | MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION); |
| 748 | MODULE_VERSION(VERSION); |
| 749 | MODULE_LICENSE("GPL"); |
Marcel Holtmann | 2312119 | 2007-02-17 23:59:02 +0100 | [diff] [blame] | 750 | MODULE_FIRMWARE("bfubase.frm"); |