[Bluetooth] Code cleanup of the drivers source code
Marcel Holtmann [Thu, 6 Jul 2006 13:45:23 +0000 (15:45 +0200)]
This patch is an attempt to cleanup the drivers source code to make all
Bluetooth drivers look more unique.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/bfusb.c
drivers/bluetooth/hci_vhci.c

index 23f9621..efcc28e 100644 (file)
@@ -2,7 +2,7 @@
  *
  *  AVM BlueFRITZ! USB driver
  *
- *  Copyright (C) 2003  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2003-2006  Marcel Holtmann <marcel@holtmann.org>
  *
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -59,7 +59,6 @@ static struct usb_device_id bfusb_table[] = {
 
 MODULE_DEVICE_TABLE(usb, bfusb_table);
 
-
 #define BFUSB_MAX_BLOCK_SIZE   256
 
 #define BFUSB_BLOCK_TIMEOUT    3000
@@ -70,7 +69,7 @@ MODULE_DEVICE_TABLE(usb, bfusb_table);
 #define BFUSB_MAX_BULK_TX      2
 #define BFUSB_MAX_BULK_RX      2
 
-struct bfusb {
+struct bfusb_data {
        struct hci_dev          *hdev;
 
        unsigned long           state;
@@ -92,137 +91,136 @@ struct bfusb {
        struct sk_buff_head     completed_q;
 };
 
-struct bfusb_scb {
+struct bfusb_data_scb {
        struct urb *urb;
 };
 
 static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs);
 static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs);
 
-static struct urb *bfusb_get_completed(struct bfusb *bfusb)
+static struct urb *bfusb_get_completed(struct bfusb_data *data)
 {
        struct sk_buff *skb;
        struct urb *urb = NULL;
 
-       BT_DBG("bfusb %p", bfusb);
+       BT_DBG("bfusb %p", data);
 
-       skb = skb_dequeue(&bfusb->completed_q);
+       skb = skb_dequeue(&data->completed_q);
        if (skb) {
-               urb = ((struct bfusb_scb *) skb->cb)->urb;
+               urb = ((struct bfusb_data_scb *) skb->cb)->urb;
                kfree_skb(skb);
        }
 
        return urb;
 }
 
-static void bfusb_unlink_urbs(struct bfusb *bfusb)
+static void bfusb_unlink_urbs(struct bfusb_data *data)
 {
        struct sk_buff *skb;
        struct urb *urb;
 
-       BT_DBG("bfusb %p", bfusb);
+       BT_DBG("bfusb %p", data);
 
-       while ((skb = skb_dequeue(&bfusb->pending_q))) {
-               urb = ((struct bfusb_scb *) skb->cb)->urb;
+       while ((skb = skb_dequeue(&data->pending_q))) {
+               urb = ((struct bfusb_data_scb *) skb->cb)->urb;
                usb_kill_urb(urb);
-               skb_queue_tail(&bfusb->completed_q, skb);
+               skb_queue_tail(&data->completed_q, skb);
        }
 
-       while ((urb = bfusb_get_completed(bfusb)))
+       while ((urb = bfusb_get_completed(data)))
                usb_free_urb(urb);
 }
 
-
-static int bfusb_send_bulk(struct bfusb *bfusb, struct sk_buff *skb)
+static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
 {
-       struct bfusb_scb *scb = (void *) skb->cb;
-       struct urb *urb = bfusb_get_completed(bfusb);
+       struct bfusb_data_scb *scb = (void *) skb->cb;
+       struct urb *urb = bfusb_get_completed(data);
        int err, pipe;
 
-       BT_DBG("bfusb %p skb %p len %d", bfusb, skb, skb->len);
+       BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
 
        if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
                return -ENOMEM;
 
-       pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+       pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
 
-       usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, skb->len,
+       usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len,
                        bfusb_tx_complete, skb);
 
        scb->urb = urb;
 
-       skb_queue_tail(&bfusb->pending_q, skb);
+       skb_queue_tail(&data->pending_q, skb);
 
        err = usb_submit_urb(urb, GFP_ATOMIC);
        if (err) {
                BT_ERR("%s bulk tx submit failed urb %p err %d", 
-                                       bfusb->hdev->name, urb, err);
-               skb_unlink(skb, &bfusb->pending_q);
+                                       data->hdev->name, urb, err);
+               skb_unlink(skb, &data->pending_q);
                usb_free_urb(urb);
        } else
-               atomic_inc(&bfusb->pending_tx);
+               atomic_inc(&data->pending_tx);
 
        return err;
 }
 
-static void bfusb_tx_wakeup(struct bfusb *bfusb)
+static void bfusb_tx_wakeup(struct bfusb_data *data)
 {
        struct sk_buff *skb;
 
-       BT_DBG("bfusb %p", bfusb);
+       BT_DBG("bfusb %p", data);
 
-       if (test_and_set_bit(BFUSB_TX_PROCESS, &bfusb->state)) {
-               set_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+       if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) {
+               set_bit(BFUSB_TX_WAKEUP, &data->state);
                return;
        }
 
        do {
-               clear_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+               clear_bit(BFUSB_TX_WAKEUP, &data->state);
 
-               while ((atomic_read(&bfusb->pending_tx) < BFUSB_MAX_BULK_TX) &&
-                               (skb = skb_dequeue(&bfusb->transmit_q))) {
-                       if (bfusb_send_bulk(bfusb, skb) < 0) {
-                               skb_queue_head(&bfusb->transmit_q, skb);
+               while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) &&
+                               (skb = skb_dequeue(&data->transmit_q))) {
+                       if (bfusb_send_bulk(data, skb) < 0) {
+                               skb_queue_head(&data->transmit_q, skb);
                                break;
                        }
                }
 
-       } while (test_bit(BFUSB_TX_WAKEUP, &bfusb->state));
+       } while (test_bit(BFUSB_TX_WAKEUP, &data->state));
 
-       clear_bit(BFUSB_TX_PROCESS, &bfusb->state);
+       clear_bit(BFUSB_TX_PROCESS, &data->state);
 }
 
 static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs)
 {
        struct sk_buff *skb = (struct sk_buff *) urb->context;
-       struct bfusb *bfusb = (struct bfusb *) skb->dev;
+       struct bfusb_data *data = (struct bfusb_data *) skb->dev;
 
-       BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
+       BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len);
 
-       atomic_dec(&bfusb->pending_tx);
+       atomic_dec(&data->pending_tx);
 
-       if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+       if (!test_bit(HCI_RUNNING, &data->hdev->flags))
                return;
 
        if (!urb->status)
-               bfusb->hdev->stat.byte_tx += skb->len;
+               data->hdev->stat.byte_tx += skb->len;
        else
-               bfusb->hdev->stat.err_tx++;
+               data->hdev->stat.err_tx++;
 
-       read_lock(&bfusb->lock);
+       read_lock(&data->lock);
 
-       skb_unlink(skb, &bfusb->pending_q);
-       skb_queue_tail(&bfusb->completed_q, skb);
+       skb_unlink(skb, &data->pending_q);
+       skb_queue_tail(&data->completed_q, skb);
 
-       bfusb_tx_wakeup(bfusb);
+       bfusb_tx_wakeup(data);
 
-       read_unlock(&bfusb->lock);
+       read_unlock(&data->lock);
 }
 
 
-static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
+static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
 {
-       struct bfusb_scb *scb;
+       struct bfusb_data_scb *scb;
        struct sk_buff *skb;
        int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
 
@@ -231,28 +229,29 @@ static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
        if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
                return -ENOMEM;
 
-       if (!(skb = bt_skb_alloc(size, GFP_ATOMIC))) {
+       skb = bt_skb_alloc(size, GFP_ATOMIC);
+       if (!skb) {
                usb_free_urb(urb);
                return -ENOMEM;
        }
 
-       skb->dev = (void *) bfusb;
+       skb->dev = (void *) data;
 
-       scb = (struct bfusb_scb *) skb->cb;
+       scb = (struct bfusb_data_scb *) skb->cb;
        scb->urb = urb;
 
-       pipe = usb_rcvbulkpipe(bfusb->udev, bfusb->bulk_in_ep);
+       pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep);
 
-       usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, size,
+       usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size,
                        bfusb_rx_complete, skb);
 
-       skb_queue_tail(&bfusb->pending_q, skb);
+       skb_queue_tail(&data->pending_q, skb);
 
        err = usb_submit_urb(urb, GFP_ATOMIC);
        if (err) {
                BT_ERR("%s bulk rx submit failed urb %p err %d",
-                                       bfusb->hdev->name, urb, err);
-               skb_unlink(skb, &bfusb->pending_q);
+                                       data->hdev->name, urb, err);
+               skb_unlink(skb, &data->pending_q);
                kfree_skb(skb);
                usb_free_urb(urb);
        }
@@ -260,15 +259,15 @@ static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
        return err;
 }
 
-static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *data, int len)
+static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len)
 {
-       BT_DBG("bfusb %p hdr 0x%02x data %p len %d", bfusb, hdr, data, len);
+       BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len);
 
        if (hdr & 0x10) {
-               BT_ERR("%s error in block", bfusb->hdev->name);
-               if (bfusb->reassembly)
-                       kfree_skb(bfusb->reassembly);
-               bfusb->reassembly = NULL;
+               BT_ERR("%s error in block", data->hdev->name);
+               if (data->reassembly)
+                       kfree_skb(data->reassembly);
+               data->reassembly = NULL;
                return -EIO;
        }
 
@@ -277,46 +276,46 @@ static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *
                unsigned char pkt_type;
                int pkt_len = 0;
 
-               if (bfusb->reassembly) {
-                       BT_ERR("%s unexpected start block", bfusb->hdev->name);
-                       kfree_skb(bfusb->reassembly);
-                       bfusb->reassembly = NULL;
+               if (data->reassembly) {
+                       BT_ERR("%s unexpected start block", data->hdev->name);
+                       kfree_skb(data->reassembly);
+                       data->reassembly = NULL;
                }
 
                if (len < 1) {
-                       BT_ERR("%s no packet type found", bfusb->hdev->name);
+                       BT_ERR("%s no packet type found", data->hdev->name);
                        return -EPROTO;
                }
 
-               pkt_type = *data++; len--;
+               pkt_type = *buf++; len--;
 
                switch (pkt_type) {
                case HCI_EVENT_PKT:
                        if (len >= HCI_EVENT_HDR_SIZE) {
-                               struct hci_event_hdr *hdr = (struct hci_event_hdr *) data;
+                               struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
                                pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
                        } else {
-                               BT_ERR("%s event block is too short", bfusb->hdev->name);
+                               BT_ERR("%s event block is too short", data->hdev->name);
                                return -EILSEQ;
                        }
                        break;
 
                case HCI_ACLDATA_PKT:
                        if (len >= HCI_ACL_HDR_SIZE) {
-                               struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) data;
+                               struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf;
                                pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
                        } else {
-                               BT_ERR("%s data block is too short", bfusb->hdev->name);
+                               BT_ERR("%s data block is too short", data->hdev->name);
                                return -EILSEQ;
                        }
                        break;
 
                case HCI_SCODATA_PKT:
                        if (len >= HCI_SCO_HDR_SIZE) {
-                               struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) data;
+                               struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf;
                                pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
                        } else {
-                               BT_ERR("%s audio block is too short", bfusb->hdev->name);
+                               BT_ERR("%s audio block is too short", data->hdev->name);
                                return -EILSEQ;
                        }
                        break;
@@ -324,27 +323,27 @@ static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *
 
                skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
                if (!skb) {
-                       BT_ERR("%s no memory for the packet", bfusb->hdev->name);
+                       BT_ERR("%s no memory for the packet", data->hdev->name);
                        return -ENOMEM;
                }
 
-               skb->dev = (void *) bfusb->hdev;
+               skb->dev = (void *) data->hdev;
                bt_cb(skb)->pkt_type = pkt_type;
 
-               bfusb->reassembly = skb;
+               data->reassembly = skb;
        } else {
-               if (!bfusb->reassembly) {
-                       BT_ERR("%s unexpected continuation block", bfusb->hdev->name);
+               if (!data->reassembly) {
+                       BT_ERR("%s unexpected continuation block", data->hdev->name);
                        return -EIO;
                }
        }
 
        if (len > 0)
-               memcpy(skb_put(bfusb->reassembly, len), data, len);
+               memcpy(skb_put(data->reassembly, len), buf, len);
 
        if (hdr & 0x08) {
-               hci_recv_frame(bfusb->reassembly);
-               bfusb->reassembly = NULL;
+               hci_recv_frame(data->reassembly);
+               data->reassembly = NULL;
        }
 
        return 0;
@@ -353,22 +352,22 @@ static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *
 static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs)
 {
        struct sk_buff *skb = (struct sk_buff *) urb->context;
-       struct bfusb *bfusb = (struct bfusb *) skb->dev;
+       struct bfusb_data *data = (struct bfusb_data *) skb->dev;
        unsigned char *buf = urb->transfer_buffer;
        int count = urb->actual_length;
        int err, hdr, len;
 
        BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
 
-       read_lock(&bfusb->lock);
+       read_lock(&data->lock);
 
-       if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+       if (!test_bit(HCI_RUNNING, &data->hdev->flags))
                goto unlock;
 
        if (urb->status || !count)
                goto resubmit;
 
-       bfusb->hdev->stat.byte_rx += count;
+       data->hdev->stat.byte_rx += count;
 
        skb_put(skb, count);
 
@@ -387,90 +386,89 @@ static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs)
 
                if (count < len) {
                        BT_ERR("%s block extends over URB buffer ranges",
-                                       bfusb->hdev->name);
+                                       data->hdev->name);
                }
 
                if ((hdr & 0xe1) == 0xc1)
-                       bfusb_recv_block(bfusb, hdr, buf, len);
+                       bfusb_recv_block(data, hdr, buf, len);
 
                count -= len;
                buf   += len;
        }
 
-       skb_unlink(skb, &bfusb->pending_q);
+       skb_unlink(skb, &data->pending_q);
        kfree_skb(skb);
 
-       bfusb_rx_submit(bfusb, urb);
+       bfusb_rx_submit(data, urb);
 
-       read_unlock(&bfusb->lock);
+       read_unlock(&data->lock);
 
        return;
 
 resubmit:
-       urb->dev = bfusb->udev;
+       urb->dev = data->udev;
 
        err = usb_submit_urb(urb, GFP_ATOMIC);
        if (err) {
                BT_ERR("%s bulk resubmit failed urb %p err %d",
-                                       bfusb->hdev->name, urb, err);
+                                       data->hdev->name, urb, err);
        }
 
 unlock:
-       read_unlock(&bfusb->lock);
+       read_unlock(&data->lock);
 }
 
-
 static int bfusb_open(struct hci_dev *hdev)
 {
-       struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+       struct bfusb_data *data = hdev->driver_data;
        unsigned long flags;
        int i, err;
 
-       BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+       BT_DBG("hdev %p bfusb %p", hdev, data);
 
        if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
                return 0;
 
-       write_lock_irqsave(&bfusb->lock, flags);
+       write_lock_irqsave(&data->lock, flags);
 
-       err = bfusb_rx_submit(bfusb, NULL);
+       err = bfusb_rx_submit(data, NULL);
        if (!err) {
                for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
-                       bfusb_rx_submit(bfusb, NULL);
+                       bfusb_rx_submit(data, NULL);
        } else {
                clear_bit(HCI_RUNNING, &hdev->flags);
        }
 
-       write_unlock_irqrestore(&bfusb->lock, flags);
+       write_unlock_irqrestore(&data->lock, flags);
 
        return err;
 }
 
 static int bfusb_flush(struct hci_dev *hdev)
 {
-       struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+       struct bfusb_data *data = hdev->driver_data;
 
-       BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+       BT_DBG("hdev %p bfusb %p", hdev, data);
 
-       skb_queue_purge(&bfusb->transmit_q);
+       skb_queue_purge(&data->transmit_q);
 
        return 0;
 }
 
 static int bfusb_close(struct hci_dev *hdev)
 {
-       struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+       struct bfusb_data *data = hdev->driver_data;
        unsigned long flags;
 
-       BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+       BT_DBG("hdev %p bfusb %p", hdev, data);
 
        if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
                return 0;
 
-       write_lock_irqsave(&bfusb->lock, flags);
-       write_unlock_irqrestore(&bfusb->lock, flags);
+       write_lock_irqsave(&data->lock, flags);
+       write_unlock_irqrestore(&data->lock, flags);
 
-       bfusb_unlink_urbs(bfusb);
+       bfusb_unlink_urbs(data);
        bfusb_flush(hdev);
 
        return 0;
@@ -479,7 +477,7 @@ static int bfusb_close(struct hci_dev *hdev)
 static int bfusb_send_frame(struct sk_buff *skb)
 {
        struct hci_dev *hdev = (struct hci_dev *) skb->dev;
-       struct bfusb *bfusb;
+       struct bfusb_data *data;
        struct sk_buff *nskb;
        unsigned char buf[3];
        int sent = 0, size, count;
@@ -494,7 +492,7 @@ static int bfusb_send_frame(struct sk_buff *skb)
        if (!test_bit(HCI_RUNNING, &hdev->flags))
                return -EBUSY;
 
-       bfusb = (struct bfusb *) hdev->driver_data;
+       data = hdev->driver_data;
 
        switch (bt_cb(skb)->pkt_type) {
        case HCI_COMMAND_PKT:
@@ -514,12 +512,13 @@ static int bfusb_send_frame(struct sk_buff *skb)
        count = skb->len;
 
        /* Max HCI frame size seems to be 1511 + 1 */
-       if (!(nskb = bt_skb_alloc(count + 32, GFP_ATOMIC))) {
+       nskb = bt_skb_alloc(count + 32, GFP_ATOMIC);
+       if (!nskb) {
                BT_ERR("Can't allocate memory for new packet");
                return -ENOMEM;
        }
 
-       nskb->dev = (void *) bfusb;
+       nskb->dev = (void *) data;
 
        while (count) {
                size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
@@ -536,18 +535,18 @@ static int bfusb_send_frame(struct sk_buff *skb)
        }
 
        /* Don't send frame with multiple size of bulk max packet */
-       if ((nskb->len % bfusb->bulk_pkt_size) == 0) {
+       if ((nskb->len % data->bulk_pkt_size) == 0) {
                buf[0] = 0xdd;
                buf[1] = 0x00;
                memcpy(skb_put(nskb, 2), buf, 2);
        }
 
-       read_lock(&bfusb->lock);
+       read_lock(&data->lock);
 
-       skb_queue_tail(&bfusb->transmit_q, nskb);
-       bfusb_tx_wakeup(bfusb);
+       skb_queue_tail(&data->transmit_q, nskb);
+       bfusb_tx_wakeup(data);
 
-       read_unlock(&bfusb->lock);
+       read_unlock(&data->lock);
 
        kfree_skb(skb);
 
@@ -556,11 +555,11 @@ static int bfusb_send_frame(struct sk_buff *skb)
 
 static void bfusb_destruct(struct hci_dev *hdev)
 {
-       struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+       struct bfusb_data *data = hdev->driver_data;
 
-       BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+       BT_DBG("hdev %p bfusb %p", hdev, data);
 
-       kfree(bfusb);
+       kfree(data);
 }
 
 static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
@@ -568,25 +567,24 @@ static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg
        return -ENOIOCTLCMD;
 }
 
-
-static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int count)
+static int bfusb_load_firmware(struct bfusb_data *data, unsigned char *firmware, int count)
 {
        unsigned char *buf;
        int err, pipe, len, size, sent = 0;
 
-       BT_DBG("bfusb %p udev %p", bfusb, bfusb->udev);
+       BT_DBG("bfusb %p udev %p", data, data->udev);
 
        BT_INFO("BlueFRITZ! USB loading firmware");
 
-       pipe = usb_sndctrlpipe(bfusb->udev, 0);
+       pipe = usb_sndctrlpipe(data->udev, 0);
 
-       if (usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+       if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
                                0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
                BT_ERR("Can't change to loading configuration");
                return -EBUSY;
        }
 
-       bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+       data->udev->toggle[0] = data->udev->toggle[1] = 0;
 
        buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
        if (!buf) {
@@ -594,14 +592,14 @@ static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int
                return -ENOMEM;
        }
 
-       pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+       pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
 
        while (count) {
                size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
 
                memcpy(buf, firmware + sent, size);
 
-               err = usb_bulk_msg(bfusb->udev, pipe, buf, size,
+               err = usb_bulk_msg(data->udev, pipe, buf, size,
                                        &len, BFUSB_BLOCK_TIMEOUT);
 
                if (err || (len != size)) {
@@ -613,21 +611,23 @@ static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int
                count -= size;
        }
 
-       if ((err = usb_bulk_msg(bfusb->udev, pipe, NULL, 0,
-                               &len, BFUSB_BLOCK_TIMEOUT)) < 0) {
+       err = usb_bulk_msg(data->udev, pipe, NULL, 0,
+                                       &len, BFUSB_BLOCK_TIMEOUT);
+       if (err < 0) {
                BT_ERR("Error in null packet request");
                goto error;
        }
 
-       pipe = usb_sndctrlpipe(bfusb->udev, 0);
+       pipe = usb_sndctrlpipe(data->udev, 0);
 
-        if ((err = usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
-                               0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT)) < 0) {
+       err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
+                               0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+       if (err < 0) {
                BT_ERR("Can't change to running configuration");
                goto error;
        }
 
-       bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+       data->udev->toggle[0] = data->udev->toggle[1] = 0;
 
        BT_INFO("BlueFRITZ! USB device ready");
 
@@ -637,9 +637,9 @@ static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int
 error:
        kfree(buf);
 
-       pipe = usb_sndctrlpipe(bfusb->udev, 0);
+       pipe = usb_sndctrlpipe(data->udev, 0);
 
-       usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+       usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
                                0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
 
        return err;
@@ -652,7 +652,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
        struct usb_host_endpoint *bulk_out_ep;
        struct usb_host_endpoint *bulk_in_ep;
        struct hci_dev *hdev;
-       struct bfusb *bfusb;
+       struct bfusb_data *data;
 
        BT_DBG("intf %p id %p", intf, id);
 
@@ -672,23 +672,24 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
        }
 
        /* Initialize control structure and load firmware */
-       if (!(bfusb = kzalloc(sizeof(struct bfusb), GFP_KERNEL))) {
+       data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL);
+       if (!data) {
                BT_ERR("Can't allocate memory for control structure");
                goto done;
        }
 
-       bfusb->udev = udev;
-       bfusb->bulk_in_ep    = bulk_in_ep->desc.bEndpointAddress;
-       bfusb->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
-       bfusb->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
+       data->udev = udev;
+       data->bulk_in_ep    = bulk_in_ep->desc.bEndpointAddress;
+       data->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
+       data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
 
-       rwlock_init(&bfusb->lock);
+       rwlock_init(&data->lock);
 
-       bfusb->reassembly = NULL;
+       data->reassembly = NULL;
 
-       skb_queue_head_init(&bfusb->transmit_q);
-       skb_queue_head_init(&bfusb->pending_q);
-       skb_queue_head_init(&bfusb->completed_q);
+       skb_queue_head_init(&data->transmit_q);
+       skb_queue_head_init(&data->pending_q);
+       skb_queue_head_init(&data->completed_q);
 
        if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
                BT_ERR("Firmware request failed");
@@ -697,7 +698,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 
        BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
 
-       if (bfusb_load_firmware(bfusb, firmware->data, firmware->size) < 0) {
+       if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) {
                BT_ERR("Firmware loading failed");
                goto release;
        }
@@ -711,10 +712,10 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
                goto error;
        }
 
-       bfusb->hdev = hdev;
+       data->hdev = hdev;
 
        hdev->type = HCI_USB;
-       hdev->driver_data = bfusb;
+       hdev->driver_data = data;
        SET_HCIDEV_DEV(hdev, &intf->dev);
 
        hdev->open     = bfusb_open;
@@ -732,7 +733,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
                goto error;
        }
 
-       usb_set_intfdata(intf, bfusb);
+       usb_set_intfdata(intf, data);
 
        return 0;
 
@@ -740,7 +741,7 @@ release:
        release_firmware(firmware);
 
 error:
-       kfree(bfusb);
+       kfree(data);
 
 done:
        return -EIO;
@@ -748,8 +749,8 @@ done:
 
 static void bfusb_disconnect(struct usb_interface *intf)
 {
-       struct bfusb *bfusb = usb_get_intfdata(intf);
-       struct hci_dev *hdev = bfusb->hdev;
+       struct bfusb_data *data = usb_get_intfdata(intf);
+       struct hci_dev *hdev = data->hdev;
 
        BT_DBG("intf %p", intf);
 
@@ -779,7 +780,8 @@ static int __init bfusb_init(void)
 
        BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
 
-       if ((err = usb_register(&bfusb_driver)) < 0)
+       err = usb_register(&bfusb_driver);
+       if (err < 0)
                BT_ERR("Failed to register BlueFRITZ! USB driver");
 
        return err;
index aac67a3..fc2130f 100644 (file)
@@ -2,9 +2,9 @@
  *
  *  Bluetooth virtual HCI driver
  *
- *  Copyright (C) 2000-2001 Qualcomm Incorporated
- *  Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
- *  Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2000-2001  Qualcomm Incorporated
+ *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
  *
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -72,21 +72,21 @@ static int vhci_open_dev(struct hci_dev *hdev)
 
 static int vhci_close_dev(struct hci_dev *hdev)
 {
-       struct vhci_data *vhci = hdev->driver_data;
+       struct vhci_data *data = hdev->driver_data;
 
        if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
                return 0;
 
-       skb_queue_purge(&vhci->readq);
+       skb_queue_purge(&data->readq);
 
        return 0;
 }
 
 static int vhci_flush(struct hci_dev *hdev)
 {
-       struct vhci_data *vhci = hdev->driver_data;
+       struct vhci_data *data = hdev->driver_data;
 
-       skb_queue_purge(&vhci->readq);
+       skb_queue_purge(&data->readq);
 
        return 0;
 }
@@ -94,7 +94,7 @@ static int vhci_flush(struct hci_dev *hdev)
 static int vhci_send_frame(struct sk_buff *skb)
 {
        struct hci_dev* hdev = (struct hci_dev *) skb->dev;
-       struct vhci_data *vhci;
+       struct vhci_data *data;
 
        if (!hdev) {
                BT_ERR("Frame for unknown HCI device (hdev=NULL)");
@@ -104,15 +104,15 @@ static int vhci_send_frame(struct sk_buff *skb)
        if (!test_bit(HCI_RUNNING, &hdev->flags))
                return -EBUSY;
 
-       vhci = hdev->driver_data;
+       data = hdev->driver_data;
 
        memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
-       skb_queue_tail(&vhci->readq, skb);
+       skb_queue_tail(&data->readq, skb);
 
-       if (vhci->flags & VHCI_FASYNC)
-               kill_fasync(&vhci->fasync, SIGIO, POLL_IN);
+       if (data->flags & VHCI_FASYNC)
+               kill_fasync(&data->fasync, SIGIO, POLL_IN);
 
-       wake_up_interruptible(&vhci->read_wait);
+       wake_up_interruptible(&data->read_wait);
 
        return 0;
 }
@@ -122,7 +122,7 @@ static void vhci_destruct(struct hci_dev *hdev)
        kfree(hdev->driver_data);
 }
 
-static inline ssize_t vhci_get_user(struct vhci_data *vhci,
+static inline ssize_t vhci_get_user(struct vhci_data *data,
                                        const char __user *buf, size_t count)
 {
        struct sk_buff *skb;
@@ -139,7 +139,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *vhci,
                return -EFAULT;
        }
 
-       skb->dev = (void *) vhci->hdev;
+       skb->dev = (void *) data->hdev;
        bt_cb(skb)->pkt_type = *((__u8 *) skb->data);
        skb_pull(skb, 1);
 
@@ -148,7 +148,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *vhci,
        return count;
 }
 
-static inline ssize_t vhci_put_user(struct vhci_data *vhci,
+static inline ssize_t vhci_put_user(struct vhci_data *data,
                        struct sk_buff *skb, char __user *buf, int count)
 {
        char __user *ptr = buf;
@@ -161,42 +161,43 @@ static inline ssize_t vhci_put_user(struct vhci_data *vhci,
 
        total += len;
 
-       vhci->hdev->stat.byte_tx += len;
+       data->hdev->stat.byte_tx += len;
 
        switch (bt_cb(skb)->pkt_type) {
        case HCI_COMMAND_PKT:
-               vhci->hdev->stat.cmd_tx++;
+               data->hdev->stat.cmd_tx++;
                break;
 
        case HCI_ACLDATA_PKT:
-               vhci->hdev->stat.acl_tx++;
+               data->hdev->stat.acl_tx++;
                break;
 
        case HCI_SCODATA_PKT:
-               vhci->hdev->stat.cmd_tx++;
+               data->hdev->stat.cmd_tx++;
                break;
        };
 
        return total;
 }
 
-static loff_t vhci_llseek(struct file * file, loff_t offset, int origin)
+static loff_t vhci_llseek(struct file *file, loff_t offset, int origin)
 {
        return -ESPIPE;
 }
 
-static ssize_t vhci_read(struct file * file, char __user * buf, size_t count, loff_t *pos)
+static ssize_t vhci_read(struct file *file,
+                               char __user *buf, size_t count, loff_t *pos)
 {
        DECLARE_WAITQUEUE(wait, current);
-       struct vhci_data *vhci = file->private_data;
+       struct vhci_data *data = file->private_data;
        struct sk_buff *skb;
        ssize_t ret = 0;
 
-       add_wait_queue(&vhci->read_wait, &wait);
+       add_wait_queue(&data->read_wait, &wait);
        while (count) {
                set_current_state(TASK_INTERRUPTIBLE);
 
-               skb = skb_dequeue(&vhci->readq);
+               skb = skb_dequeue(&data->readq);
                if (!skb) {
                        if (file->f_flags & O_NONBLOCK) {
                                ret = -EAGAIN;
@@ -213,7 +214,7 @@ static ssize_t vhci_read(struct file * file, char __user * buf, size_t count, lo
                }
 
                if (access_ok(VERIFY_WRITE, buf, count))
-                       ret = vhci_put_user(vhci, skb, buf, count);
+                       ret = vhci_put_user(data, skb, buf, count);
                else
                        ret = -EFAULT;
 
@@ -221,7 +222,7 @@ static ssize_t vhci_read(struct file * file, char __user * buf, size_t count, lo
                break;
        }
        set_current_state(TASK_RUNNING);
-       remove_wait_queue(&vhci->read_wait, &wait);
+       remove_wait_queue(&data->read_wait, &wait);
 
        return ret;
 }
@@ -229,21 +230,21 @@ static ssize_t vhci_read(struct file * file, char __user * buf, size_t count, lo
 static ssize_t vhci_write(struct file *file,
                        const char __user *buf, size_t count, loff_t *pos)
 {
-       struct vhci_data *vhci = file->private_data;
+       struct vhci_data *data = file->private_data;
 
        if (!access_ok(VERIFY_READ, buf, count))
                return -EFAULT;
 
-       return vhci_get_user(vhci, buf, count);
+       return vhci_get_user(data, buf, count);
 }
 
 static unsigned int vhci_poll(struct file *file, poll_table *wait)
 {
-       struct vhci_data *vhci = file->private_data;
+       struct vhci_data *data = file->private_data;
 
-       poll_wait(file, &vhci->read_wait, wait);
+       poll_wait(file, &data->read_wait, wait);
 
-       if (!skb_queue_empty(&vhci->readq))
+       if (!skb_queue_empty(&data->readq))
                return POLLIN | POLLRDNORM;
 
        return POLLOUT | POLLWRNORM;
@@ -257,26 +258,26 @@ static int vhci_ioctl(struct inode *inode, struct file *file,
 
 static int vhci_open(struct inode *inode, struct file *file)
 {
-       struct vhci_data *vhci;
+       struct vhci_data *data;
        struct hci_dev *hdev;
 
-       vhci = kzalloc(sizeof(struct vhci_data), GFP_KERNEL);
-       if (!vhci)
+       data = kzalloc(sizeof(struct vhci_data), GFP_KERNEL);
+       if (!data)
                return -ENOMEM;
 
-       skb_queue_head_init(&vhci->readq);
-       init_waitqueue_head(&vhci->read_wait);
+       skb_queue_head_init(&data->readq);
+       init_waitqueue_head(&data->read_wait);
 
        hdev = hci_alloc_dev();
        if (!hdev) {
-               kfree(vhci);
+               kfree(data);
                return -ENOMEM;
        }
 
-       vhci->hdev = hdev;
+       data->hdev = hdev;
 
        hdev->type = HCI_VHCI;
-       hdev->driver_data = vhci;
+       hdev->driver_data = data;
 
        hdev->open     = vhci_open_dev;
        hdev->close    = vhci_close_dev;
@@ -288,20 +289,20 @@ static int vhci_open(struct inode *inode, struct file *file)
 
        if (hci_register_dev(hdev) < 0) {
                BT_ERR("Can't register HCI device");
-               kfree(vhci);
+               kfree(data);
                hci_free_dev(hdev);
                return -EBUSY;
        }
 
-       file->private_data = vhci;
+       file->private_data = data;
 
        return nonseekable_open(inode, file);
 }
 
 static int vhci_release(struct inode *inode, struct file *file)
 {
-       struct vhci_data *vhci = file->private_data;
-       struct hci_dev *hdev = vhci->hdev;
+       struct vhci_data *data = file->private_data;
+       struct hci_dev *hdev = data->hdev;
 
        if (hci_unregister_dev(hdev) < 0) {
                BT_ERR("Can't unregister HCI device %s", hdev->name);
@@ -316,17 +317,17 @@ static int vhci_release(struct inode *inode, struct file *file)
 
 static int vhci_fasync(int fd, struct file *file, int on)
 {
-       struct vhci_data *vhci = file->private_data;
+       struct vhci_data *data = file->private_data;
        int err;
 
-       err = fasync_helper(fd, file, on, &vhci->fasync);
+       err = fasync_helper(fd, file, on, &data->fasync);
        if (err < 0)
                return err;
 
        if (on)
-               vhci->flags |= VHCI_FASYNC;
+               data->flags |= VHCI_FASYNC;
        else
-               vhci->flags &= ~VHCI_FASYNC;
+               data->flags &= ~VHCI_FASYNC;
 
        return 0;
 }