Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
new file mode 100644
index 0000000..3256192
--- /dev/null
+++ b/drivers/bluetooth/hci_vhci.c
@@ -0,0 +1,364 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+ Copyright (C) 2000-2001 Qualcomm Incorporated
+
+ Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation;
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth HCI virtual device driver.
+ *
+ * $Id: hci_vhci.c,v 1.3 2002/04/17 17:37:20 maxk Exp $
+ */
+#define VERSION "1.1"
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/random.h>
+
+#include <linux/skbuff.h>
+#include <linux/miscdevice.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include "hci_vhci.h"
+
+/* HCI device part */
+
+static int hci_vhci_open(struct hci_dev *hdev)
+{
+ set_bit(HCI_RUNNING, &hdev->flags);
+ return 0;
+}
+
+static int hci_vhci_flush(struct hci_dev *hdev)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
+ skb_queue_purge(&hci_vhci->readq);
+ return 0;
+}
+
+static int hci_vhci_close(struct hci_dev *hdev)
+{
+ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+ return 0;
+
+ hci_vhci_flush(hdev);
+ return 0;
+}
+
+static void hci_vhci_destruct(struct hci_dev *hdev)
+{
+ struct hci_vhci_struct *vhci;
+
+ if (!hdev) return;
+
+ vhci = (struct hci_vhci_struct *) hdev->driver_data;
+ kfree(vhci);
+}
+
+static int hci_vhci_send_frame(struct sk_buff *skb)
+{
+ struct hci_dev* hdev = (struct hci_dev *) skb->dev;
+ struct hci_vhci_struct *hci_vhci;
+
+ if (!hdev) {
+ BT_ERR("Frame for uknown device (hdev=NULL)");
+ return -ENODEV;
+ }
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return -EBUSY;
+
+ hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
+
+ memcpy(skb_push(skb, 1), &skb->pkt_type, 1);
+ skb_queue_tail(&hci_vhci->readq, skb);
+
+ if (hci_vhci->flags & VHCI_FASYNC)
+ kill_fasync(&hci_vhci->fasync, SIGIO, POLL_IN);
+ wake_up_interruptible(&hci_vhci->read_wait);
+
+ return 0;
+}
+
+/* Character device part */
+
+/* Poll */
+static unsigned int hci_vhci_chr_poll(struct file *file, poll_table * wait)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+
+ poll_wait(file, &hci_vhci->read_wait, wait);
+
+ if (skb_queue_len(&hci_vhci->readq))
+ return POLLIN | POLLRDNORM;
+
+ return POLLOUT | POLLWRNORM;
+}
+
+/* Get packet from user space buffer(already verified) */
+static inline ssize_t hci_vhci_get_user(struct hci_vhci_struct *hci_vhci, const char __user *buf, size_t count)
+{
+ struct sk_buff *skb;
+
+ if (count > HCI_MAX_FRAME_SIZE)
+ return -EINVAL;
+
+ if (!(skb = bt_skb_alloc(count, GFP_KERNEL)))
+ return -ENOMEM;
+
+ if (copy_from_user(skb_put(skb, count), buf, count)) {
+ kfree_skb(skb);
+ return -EFAULT;
+ }
+
+ skb->dev = (void *) hci_vhci->hdev;
+ skb->pkt_type = *((__u8 *) skb->data);
+ skb_pull(skb, 1);
+
+ hci_recv_frame(skb);
+
+ return count;
+}
+
+/* Write */
+static ssize_t hci_vhci_chr_write(struct file * file, const char __user * buf,
+ size_t count, loff_t *pos)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+
+ if (!access_ok(VERIFY_READ, buf, count))
+ return -EFAULT;
+
+ return hci_vhci_get_user(hci_vhci, buf, count);
+}
+
+/* Put packet to user space buffer(already verified) */
+static inline ssize_t hci_vhci_put_user(struct hci_vhci_struct *hci_vhci,
+ struct sk_buff *skb, char __user *buf,
+ int count)
+{
+ int len = count, total = 0;
+ char __user *ptr = buf;
+
+ len = min_t(unsigned int, skb->len, len);
+ if (copy_to_user(ptr, skb->data, len))
+ return -EFAULT;
+ total += len;
+
+ hci_vhci->hdev->stat.byte_tx += len;
+ switch (skb->pkt_type) {
+ case HCI_COMMAND_PKT:
+ hci_vhci->hdev->stat.cmd_tx++;
+ break;
+
+ case HCI_ACLDATA_PKT:
+ hci_vhci->hdev->stat.acl_tx++;
+ break;
+
+ case HCI_SCODATA_PKT:
+ hci_vhci->hdev->stat.cmd_tx++;
+ break;
+ };
+
+ return total;
+}
+
+/* Read */
+static ssize_t hci_vhci_chr_read(struct file * file, char __user * buf, size_t count, loff_t *pos)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ struct sk_buff *skb;
+ ssize_t ret = 0;
+
+ add_wait_queue(&hci_vhci->read_wait, &wait);
+ while (count) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ /* Read frames from device queue */
+ if (!(skb = skb_dequeue(&hci_vhci->readq))) {
+ if (file->f_flags & O_NONBLOCK) {
+ ret = -EAGAIN;
+ break;
+ }
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+
+ /* Nothing to read, let's sleep */
+ schedule();
+ continue;
+ }
+
+ if (access_ok(VERIFY_WRITE, buf, count))
+ ret = hci_vhci_put_user(hci_vhci, skb, buf, count);
+ else
+ ret = -EFAULT;
+
+ kfree_skb(skb);
+ break;
+ }
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&hci_vhci->read_wait, &wait);
+
+ return ret;
+}
+
+static loff_t hci_vhci_chr_lseek(struct file * file, loff_t offset, int origin)
+{
+ return -ESPIPE;
+}
+
+static int hci_vhci_chr_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return -EINVAL;
+}
+
+static int hci_vhci_chr_fasync(int fd, struct file *file, int on)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+ int ret;
+
+ if ((ret = fasync_helper(fd, file, on, &hci_vhci->fasync)) < 0)
+ return ret;
+
+ if (on)
+ hci_vhci->flags |= VHCI_FASYNC;
+ else
+ hci_vhci->flags &= ~VHCI_FASYNC;
+
+ return 0;
+}
+
+static int hci_vhci_chr_open(struct inode *inode, struct file * file)
+{
+ struct hci_vhci_struct *hci_vhci = NULL;
+ struct hci_dev *hdev;
+
+ if (!(hci_vhci = kmalloc(sizeof(struct hci_vhci_struct), GFP_KERNEL)))
+ return -ENOMEM;
+
+ memset(hci_vhci, 0, sizeof(struct hci_vhci_struct));
+
+ skb_queue_head_init(&hci_vhci->readq);
+ init_waitqueue_head(&hci_vhci->read_wait);
+
+ /* Initialize and register HCI device */
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ kfree(hci_vhci);
+ return -ENOMEM;
+ }
+
+ hci_vhci->hdev = hdev;
+
+ hdev->type = HCI_VHCI;
+ hdev->driver_data = hci_vhci;
+
+ hdev->open = hci_vhci_open;
+ hdev->close = hci_vhci_close;
+ hdev->flush = hci_vhci_flush;
+ hdev->send = hci_vhci_send_frame;
+ hdev->destruct = hci_vhci_destruct;
+
+ hdev->owner = THIS_MODULE;
+
+ if (hci_register_dev(hdev) < 0) {
+ kfree(hci_vhci);
+ hci_free_dev(hdev);
+ return -EBUSY;
+ }
+
+ file->private_data = hci_vhci;
+ return nonseekable_open(inode, file);
+}
+
+static int hci_vhci_chr_close(struct inode *inode, struct file *file)
+{
+ struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+ struct hci_dev *hdev = hci_vhci->hdev;
+
+ if (hci_unregister_dev(hdev) < 0) {
+ BT_ERR("Can't unregister HCI device %s", hdev->name);
+ }
+
+ hci_free_dev(hdev);
+
+ file->private_data = NULL;
+ return 0;
+}
+
+static struct file_operations hci_vhci_fops = {
+ .owner = THIS_MODULE,
+ .llseek = hci_vhci_chr_lseek,
+ .read = hci_vhci_chr_read,
+ .write = hci_vhci_chr_write,
+ .poll = hci_vhci_chr_poll,
+ .ioctl = hci_vhci_chr_ioctl,
+ .open = hci_vhci_chr_open,
+ .release = hci_vhci_chr_close,
+ .fasync = hci_vhci_chr_fasync
+};
+
+static struct miscdevice hci_vhci_miscdev=
+{
+ VHCI_MINOR,
+ "hci_vhci",
+ &hci_vhci_fops
+};
+
+static int __init hci_vhci_init(void)
+{
+ BT_INFO("VHCI driver ver %s", VERSION);
+
+ if (misc_register(&hci_vhci_miscdev)) {
+ BT_ERR("Can't register misc device %d\n", VHCI_MINOR);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void hci_vhci_cleanup(void)
+{
+ misc_deregister(&hci_vhci_miscdev);
+}
+
+module_init(hci_vhci_init);
+module_exit(hci_vhci_cleanup);
+
+MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
+MODULE_DESCRIPTION("Bluetooth VHCI driver ver " VERSION);
+MODULE_LICENSE("GPL");