diff options
| author | Kevin | 2014-11-15 10:00:36 +0800 |
|---|---|---|
| committer | Kevin | 2014-11-15 10:00:36 +0800 |
| commit | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (patch) | |
| tree | de942df665fac4bac0d9cb7ae86910fe937b0c1a /ANDROID_3.4.5/drivers/bluetooth/btusb_common.c | |
| parent | 392e8802486cb573b916e746010e141a75f507e6 (diff) | |
| download | FOSSEE-netbook-kernel-source-9d40ac5867b9aefe0722bc1f110b965ff294d30d.tar.gz FOSSEE-netbook-kernel-source-9d40ac5867b9aefe0722bc1f110b965ff294d30d.tar.bz2 FOSSEE-netbook-kernel-source-9d40ac5867b9aefe0722bc1f110b965ff294d30d.zip | |
add via modify part source code for wm8880 4.4 kitkat
Diffstat (limited to 'ANDROID_3.4.5/drivers/bluetooth/btusb_common.c')
| -rwxr-xr-x | ANDROID_3.4.5/drivers/bluetooth/btusb_common.c | 2605 |
1 files changed, 2605 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c b/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c new file mode 100755 index 00000000..71d68684 --- /dev/null +++ b/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c @@ -0,0 +1,2605 @@ +/*
+ *
+ * Realtek Bluetooth USB driver
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/skbuff.h>
+#include <linux/usb.h>
+#include <mach/wmt_misc.h> //added by rubbitxiao
+#define PRINT_ACL_DATA 1
+#define PRINT_CMD_EVENT 1
+/*******************************/
+#include "com_btusb.h"
+
+#if 0
+#define RTKBT_DBG(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n" , ## arg)
+#else
+#define RTKBT_DBG(fmt, arg...)
+#endif
+
+#if 1
+#define RTKBT_ERR(fmt, arg...) printk(KERN_ERR "rtk_btusb: " fmt "\n" , ## arg)
+#else
+#define RTKBT_ERR(fmt, arg...)
+#endif
+
+
+#if CONFIG_BLUEDROID //for 4.2
+#define DEVICE_NAME "comm_btusb"
+static dev_t first; // Global variable for the first device number
+static struct cdev c_dev; // Global variable for the character device structure
+static struct class *cl; // Global variable for the device class
+
+/* HCI device list */
+DEFINE_RWLOCK(hci_dev_list_lock);
+struct hci_dev *Ghdev = NULL;
+
+static struct file_operations btfcd_file_ops_g =
+{
+ open : btfcd_open,
+ release : btfcd_close,
+ read : btfcd_read,
+ write : btfcd_write,
+ poll : btfcd_poll
+};
+#endif
+/*******************************/
+
+#define VERSION "1.0.20130517"
+static struct usb_driver btusb_driver;
+static struct usb_device_id btusb_table[] = {
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO,
+// .idVendor = 0x0a12,
+ .bInterfaceClass = 0xe0,
+ .bInterfaceSubClass = 0x01,
+ .bInterfaceProtocol = 0x01 },
+ { .match_flags = USB_DEVICE_ID_MATCH_VENDOR,
+ .idVendor = 0x0a5c,
+ .idProduct = 0x21e8, },
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, btusb_table);
+
+static int inc_tx(struct btusb_data *data)
+{
+ unsigned long flags;
+ int rv;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ rv = test_bit(BTUSB_SUSPENDING, &data->flags);
+ if (!rv)
+ data->tx_in_flight++;
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ return rv;
+}
+
+static void btusb_intr_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ int err;
+// struct usb_device *dev ;
+// RTKBT_DBG("btusb_intr_complete %s urb %p status %d count %d ", hdev->name,
+// urb, urb->status, urb->actual_length);
+// print_event(urb);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ /*add to avoid suspend fail at usb_kill_urb*/
+ if(test_bit(BTUSB_SUSPENDING, &data->flags))
+ return;
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
+ urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ RTKBT_ERR("%s corrupted event packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+
+ if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
+ return;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ RTKBT_ERR("btusb_intr_complete %s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ // dev = urb->dev;
+ // RTKBT_DBG("dev->state = %d ",dev->state);
+ }
+}
+
+static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ //RTKBT_DBG("%s", hdev->name);
+
+ if (!data->intr_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+ btusb_intr_complete, hdev,
+ data->intr_ep->bInterval);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ RTKBT_ERR("btusb_submit_intr_urb %s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_bulk_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ int err;
+ //struct usb_device *dev ;
+
+ /*
+ RTKBT_DBG("%s urb %p status %d count %d", hdev->name,
+ urb, urb->status, urb->actual_length);
+ */
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
+ urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ RTKBT_ERR("%s corrupted ACL packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+
+ if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
+ return;
+
+ /*add to avoid suspend fail at usb_kill_urb*/
+ if(test_bit(BTUSB_SUSPENDING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->bulk_anchor);
+ usb_mark_last_busy(data->udev);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ RTKBT_ERR("btusb_bulk_complete %s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ // dev = urb->dev;
+ // RTKBT_DBG("dev->state = %d ",dev->state);
+ }
+}
+
+static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size = HCI_MAX_FRAME_SIZE;
+
+ //RTKBT_DBG("%s", hdev->name);
+
+ if (!data->bulk_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ buf, size, btusb_bulk_complete, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->bulk_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ RTKBT_ERR("btusb_submit_bulk_urb %s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_isoc_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ int i, err;
+
+ /*
+ RTKBT_DBG("%s urb %p status %d count %d", hdev->name,
+ urb, urb->status, urb->actual_length);
+ */
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned int offset = urb->iso_frame_desc[i].offset;
+ unsigned int length = urb->iso_frame_desc[i].actual_length;
+
+ if (urb->iso_frame_desc[i].status)
+ continue;
+
+ hdev->stat.byte_rx += length;
+
+ if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
+ urb->transfer_buffer + offset,
+ length) < 0) {
+ RTKBT_ERR("%s corrupted SCO packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+ }
+
+ if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ RTKBT_ERR("btusb_isoc_complete %s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
+{
+ int i, offset = 0;
+
+ //RTKBT_DBG("len %d mtu %d", len, mtu);
+
+ for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
+ i++, offset += mtu, len -= mtu) {
+ urb->iso_frame_desc[i].offset = offset;
+ urb->iso_frame_desc[i].length = mtu;
+ }
+
+ if (len && i < BTUSB_MAX_ISOC_FRAMES) {
+ urb->iso_frame_desc[i].offset = offset;
+ urb->iso_frame_desc[i].length = len;
+ i++;
+ }
+
+ urb->number_of_packets = i;
+}
+
+static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ //RTKBT_DBG("%s", hdev->name);
+
+ if (!data->isoc_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
+ BTUSB_MAX_ISOC_FRAMES;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
+
+ urb->dev = data->udev;
+ urb->pipe = pipe;
+ urb->context = hdev;
+ urb->complete = btusb_isoc_complete;
+ urb->interval = data->isoc_rx_ep->bInterval;
+
+ urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
+ urb->transfer_buffer = buf;
+ urb->transfer_buffer_length = size;
+
+ __fill_isoc_descriptor(urb, size,
+ le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ RTKBT_ERR("btusb_submit_isoc_urb %s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btusb_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+
+// RTKBT_DBG("btusb_tx_complete %s urb %p status %d count %d", hdev->name,
+// urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ spin_lock(&data->txlock);
+ data->tx_in_flight--;
+ spin_unlock(&data->txlock);
+
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static void btusb_isoc_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+
+ /*
+ RTKBT_DBG("btusb_isoc_tx_complete %s urb %p status %d count %d", hdev->name,
+ urb, urb->status, urb->actual_length);
+ */
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static int btusb_open(struct hci_dev *hdev)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ int err;
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return err;
+
+ data->intf->needs_remote_wakeup = 1;
+ RTKBT_DBG("%s start pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));
+
+ /*******************************/
+ if (0 == atomic_read(&hdev->promisc))
+ {
+ RTKBT_ERR("btusb_open hdev->promisc ==0");
+ err = -1;
+ //goto failed;
+ }
+#if 0 //added by rubbitxiao
+ err = download_patch(data->intf);
+ if (err < 0) goto failed;
+#endif
+
+ /*******************************/
+
+ if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
+ goto done;
+
+ err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
+ if (err < 0)
+ goto failed;
+
+ err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+ if (err < 0) {
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ goto failed;
+ }
+
+ set_bit(BTUSB_BULK_RUNNING, &data->flags);
+ btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+
+done:
+ usb_autopm_put_interface(data->intf);
+ RTKBT_DBG("%s end pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));
+
+ return 0;
+
+failed:
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ clear_bit(HCI_RUNNING, &hdev->flags);
+ usb_autopm_put_interface(data->intf);
+ RTKBT_ERR("%s failed pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));
+ return err;
+}
+
+static void btusb_stop_traffic(struct btusb_data *data)
+{
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ usb_kill_anchored_urbs(&data->bulk_anchor);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+}
+
+static int btusb_close(struct hci_dev *hdev)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ int i,err;
+
+ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+ return 0;
+
+ RTKBT_DBG("btusb_close");
+ /*******************************/
+ for (i = 0; i < NUM_REASSEMBLY; i++)
+ {
+ if(hdev->reassembly[i])
+ {
+ kfree_skb(hdev->reassembly[i]);
+ hdev->reassembly[i] = NULL;
+ RTKBT_DBG("%s free ressembly i=%d",__FUNCTION__,i);
+ }
+ }
+ /*******************************/
+ cancel_work_sync(&data->work);
+ cancel_work_sync(&data->waker);
+
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+
+ btusb_stop_traffic(data);
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ goto failed;
+
+ data->intf->needs_remote_wakeup = 0;
+ usb_autopm_put_interface(data->intf);
+
+failed:
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_scuttle_anchored_urbs(&data->deferred);
+ return 0;
+}
+
+static int btusb_flush(struct hci_dev *hdev)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+
+ RTKBT_DBG("%s add delay ",__FUNCTION__);
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ return 0;
+}
+
+static int btusb_send_frame(struct sk_buff *skb)
+{
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ struct usb_ctrlrequest *dr;
+ struct urb *urb;
+ unsigned int pipe;
+ int err;
+
+// RTKBT_DBG("%s", hdev->name);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return -EBUSY;
+
+ switch (bt_cb(skb)->pkt_type) {
+ case HCI_COMMAND_PKT:
+ print_command(skb);
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ dr->bRequestType = data->cmdreq_type;
+ dr->bRequest = 0;
+ dr->wIndex = 0;
+ dr->wValue = 0;
+ dr->wLength = __cpu_to_le16(skb->len);
+
+ pipe = usb_sndctrlpipe(data->udev, 0x00);
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
+ skb->data, skb->len, btusb_tx_complete, skb);
+
+ hdev->stat.cmd_tx++;
+ break;
+
+ case HCI_ACLDATA_PKT:
+ print_acl(skb,1);
+ if (!data->bulk_tx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ pipe = usb_sndbulkpipe(data->udev,
+ data->bulk_tx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btusb_tx_complete, skb);
+
+ hdev->stat.acl_tx++;
+ break;
+
+ case HCI_SCODATA_PKT:
+ if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ pipe = usb_sndisocpipe(data->udev,
+ data->isoc_tx_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btusb_isoc_tx_complete,
+ skb, data->isoc_tx_ep->bInterval);
+
+ urb->transfer_flags = URB_ISO_ASAP;
+
+ __fill_isoc_descriptor(urb, skb->len,
+ le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
+
+ hdev->stat.sco_tx++;
+ goto skip_waking;
+
+ default:
+ return -EILSEQ;
+ }
+
+ err = inc_tx(data);
+ if (err) {
+ usb_anchor_urb(urb, &data->deferred);
+ schedule_work(&data->waker);
+ err = 0;
+ goto done;
+ }
+
+skip_waking:
+ usb_anchor_urb(urb, &data->tx_anchor);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ RTKBT_ERR("btusb_send_frame %s urb %p submission failed", hdev->name, urb);
+ kfree(urb->setup_packet);
+ usb_unanchor_urb(urb);
+ } else {
+ usb_mark_last_busy(data->udev);
+ }
+ usb_free_urb(urb);
+
+done:
+ return err;
+}
+
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)
+static void btusb_destruct(struct hci_dev *hdev)
+{
+ RTKBT_DBG("btusb_destruct %s", hdev->name);
+ hci_free_dev(hdev);
+}
+#endif
+
+
+
+static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+
+ RTKBT_DBG("%s evt %d", hdev->name, evt);
+ RTKBT_DBG("btusb_notify : %s evt %d", hdev->name, evt);
+
+ if (hdev->conn_hash.sco_num != data->sco_num) {
+ data->sco_num = hdev->conn_hash.sco_num;
+ schedule_work(&data->work);
+ }
+}
+
+static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
+{
+ struct btusb_data *data = GET_DRV_DATA(hdev);
+ struct usb_interface *intf = data->isoc;
+ struct usb_endpoint_descriptor *ep_desc;
+ int i, err;
+
+ if (!data->isoc)
+ return -ENODEV;
+
+ err = usb_set_interface(data->udev, 1, altsetting);
+ if (err < 0) {
+ RTKBT_ERR("%s setting interface failed (%d)", hdev->name, -err);
+ return err;
+ }
+
+ data->isoc_altsetting = altsetting;
+
+ data->isoc_tx_ep = NULL;
+ data->isoc_rx_ep = NULL;
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
+ data->isoc_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
+ data->isoc_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
+ RTKBT_ERR("%s invalid SCO descriptors", hdev->name);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void btusb_work(struct work_struct *work)
+{
+ struct btusb_data *data = container_of(work, struct btusb_data, work);
+ struct hci_dev *hdev = data->hdev;
+ int err;
+
+ if (hdev->conn_hash.sco_num > 0) {
+ if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
+ err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
+ if (err < 0) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+ return;
+ }
+
+ set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
+ }
+ if (data->isoc_altsetting != 2) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+
+ if (__set_isoc_interface(hdev, 2) < 0)
+ return;
+ }
+
+ if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+ if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ else
+ btusb_submit_isoc_urb(hdev, GFP_KERNEL);
+ }
+ } else {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+
+ __set_isoc_interface(hdev, 0);
+ if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
+ usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
+ }
+}
+
+static void btusb_waker(struct work_struct *work)
+{
+ struct btusb_data *data = container_of(work, struct btusb_data, waker);
+ int err;
+
+ err = usb_autopm_get_interface(data->intf);
+ RTKBT_DBG("%s start pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));
+ if (err < 0)
+ return;
+
+ usb_autopm_put_interface(data->intf);
+ RTKBT_DBG("%s end pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));
+}
+
+static int btusb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_endpoint_descriptor *ep_desc;
+ struct btusb_data *data;
+ struct hci_dev *hdev;
+ int i, err,flag1,flag2;
+ struct usb_device *udev;
+ udev = interface_to_usbdev(intf);
+
+ /* interface numbers are hardcoded in the spec */
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return -ENODEV;
+
+ /*******************************/
+ flag1=device_can_wakeup(&udev->dev);
+ flag2=device_may_wakeup(&udev->dev);
+ RTKBT_DBG("btusb_probe 1==========can_wakeup=%x flag2=%x",flag1,flag2);
+ //device_wakeup_enable(&udev->dev);
+ /*device_wakeup_disable(&udev->dev);
+ flag1=device_can_wakeup(&udev->dev);
+ flag2=device_may_wakeup(&udev->dev);
+ RTKBT_DBG("btusb_probe 2==========can_wakeup=%x flag2=%x",flag1,flag2);
+ */
+ //err = patch_add(intf);
+ //if (err < 0) return -1;
+ /*******************************/
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
+ data->intr_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
+ data->bulk_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
+ data->bulk_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
+ kfree(data);
+ return -ENODEV;
+ }
+
+ data->cmdreq_type = USB_TYPE_CLASS;
+
+ data->udev = interface_to_usbdev(intf);
+ data->intf = intf;
+
+ spin_lock_init(&data->lock);
+
+ INIT_WORK(&data->work, btusb_work);
+ INIT_WORK(&data->waker, btusb_waker);
+ spin_lock_init(&data->txlock);
+
+ init_usb_anchor(&data->tx_anchor);
+ init_usb_anchor(&data->intr_anchor);
+ init_usb_anchor(&data->bulk_anchor);
+ init_usb_anchor(&data->isoc_anchor);
+ init_usb_anchor(&data->deferred);
+
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ kfree(data);
+ return -ENOMEM;
+ }
+
+ HDEV_BUS = HCI_USB;
+
+ data->hdev = hdev;
+
+ SET_HCIDEV_DEV(hdev, &intf->dev);
+
+ hdev->open = btusb_open;
+ hdev->close = btusb_close;
+ hdev->flush = btusb_flush;
+ hdev->send = btusb_send_frame;
+ hdev->notify = btusb_notify;
+
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+ hci_set_drvdata(hdev, data);
+#else
+ hdev->driver_data = data;
+ hdev->destruct = btusb_destruct;
+ hdev->owner = THIS_MODULE;
+#endif
+
+
+
+ /* Interface numbers are hardcoded in the specification */
+ data->isoc = usb_ifnum_to_if(data->udev, 1);
+
+ if (data->isoc) {
+ err = usb_driver_claim_interface(&btusb_driver,
+ data->isoc, data);
+ if (err < 0) {
+ hci_free_dev(hdev);
+ kfree(data);
+ return err;
+ }
+ }
+
+ err = hci_register_dev(hdev);
+ if (err < 0) {
+ hci_free_dev(hdev);
+ kfree(data);
+ return err;
+ }
+
+ usb_set_intfdata(intf, data);
+
+#if CONFIG_BLUEDROID //for 4.2
+ btfcd_init();
+#endif
+ return 0;
+}
+
+static void btusb_disconnect(struct usb_interface *intf)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev;
+ struct usb_device *udev;
+ udev = interface_to_usbdev(intf);
+
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return;
+
+ if (!data)
+ return;
+
+ RTKBT_DBG("btusb_disconnect");
+ /*******************************/
+#if 0
+ patch_remove(intf);
+#endif
+ /*******************************/
+
+ hdev = data->hdev;
+#if CONFIG_BLUEDROID //for 4.2
+#else //for bluez
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)
+ __hci_dev_hold(hdev);
+#endif
+#endif
+ usb_set_intfdata(data->intf, NULL);
+
+ if (data->isoc)
+ usb_set_intfdata(data->isoc, NULL);
+
+ hci_unregister_dev(hdev);
+
+ if (intf == data->isoc)
+ usb_driver_release_interface(&btusb_driver, data->intf);
+ else if (data->isoc)
+ usb_driver_release_interface(&btusb_driver, data->isoc);
+
+#if CONFIG_BLUEDROID //for 4.2
+#else //for bluez
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)
+ __hci_dev_put(hdev);
+#endif
+#endif
+
+ hci_free_dev(hdev);
+ kfree(data);
+
+#if CONFIG_BLUEDROID //for 4.2
+ btfcd_exit();
+#endif
+
+}
+
+#ifdef CONFIG_PM
+static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return 0;
+
+ /*******************************/
+ RTKBT_DBG("btusb_suspend message.event=0x%x,data->suspend_count=%d",message.event,data->suspend_count);
+ if (!test_bit(HCI_RUNNING, &data->hdev->flags))
+ {
+#if 0
+ RTKBT_DBG("btusb_suspend-----bt is off");
+ set_btoff(data->intf);
+#else
+ printk("bt is off\n");
+#endif
+ }
+ /*******************************/
+
+ if (data->suspend_count++)
+ return 0;
+
+ spin_lock_irq(&data->txlock);
+ if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
+ set_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ } else {
+ spin_unlock_irq(&data->txlock);
+ data->suspend_count--;
+ return -EBUSY;
+ }
+
+ cancel_work_sync(&data->work);
+
+ btusb_stop_traffic(data);
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ return 0;
+}
+
+static void play_deferred(struct btusb_data *data)
+{
+ struct urb *urb;
+ int err;
+
+ while ((urb = usb_get_from_anchor(&data->deferred))) {
+
+ /************************************/
+ usb_anchor_urb(urb, &data->tx_anchor);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ RTKBT_ERR("play_deferred urb %p submission failed", urb);
+ kfree(urb->setup_packet);
+ usb_unanchor_urb(urb);
+ } else {
+ usb_mark_last_busy(data->udev);
+ }
+ usb_free_urb(urb);
+ /************************************/
+ data->tx_in_flight++;
+ }
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_scuttle_anchored_urbs(&data->deferred);
+}
+
+static int btusb_resume(struct usb_interface *intf)
+{
+ struct btusb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev = data->hdev;
+ int err = 0;
+
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return 0;
+
+
+ /*******************************/
+ RTKBT_DBG("btusb_resume data->suspend_count=%d",data->suspend_count);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ {
+#if 0
+ RTKBT_DBG("btusb_resume-----bt is off,download patch");
+ download_patch(intf);
+#else
+ printk("btusb_resume-----bt is off");
+#endif
+ }
+ else
+ RTKBT_DBG("btusb_resume,----bt is on");
+ /*******************************/
+ if (--data->suspend_count)
+ return 0;
+
+ if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
+ err = btusb_submit_intr_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ goto failed;
+ }
+ }
+
+ if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
+ err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ goto failed;
+ }
+
+ btusb_submit_bulk_urb(hdev, GFP_NOIO);
+ }
+
+ if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+ if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ else
+ btusb_submit_isoc_urb(hdev, GFP_NOIO);
+ }
+
+ spin_lock_irq(&data->txlock);
+ play_deferred(data);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ schedule_work(&data->work);
+
+ return 0;
+
+failed:
+ mdelay(URB_CANCELING_DELAY_MS); // Added by Realtek
+ usb_scuttle_anchored_urbs(&data->deferred);
+//done:
+ spin_lock_irq(&data->txlock);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+
+ return err;
+}
+#endif
+
+static struct usb_driver btusb_driver = {
+ .name = "comm_btusb",
+ .probe = btusb_probe,
+ .disconnect = btusb_disconnect,
+#ifdef CONFIG_PM
+ .suspend = btusb_suspend,
+ .resume = btusb_resume,
+#endif
+#if CONFIG_RESET_RESUME
+ .reset_resume = btusb_resume,
+#endif
+ .id_table = btusb_table,
+ .supports_autosuspend = 1,
+};
+
+static int __init btusb_init(void)
+{
+ RTKBT_DBG("csr Bluetooth USB driver ver %s", VERSION);
+ //wifi_power_ctrl(1);//added by rubbit
+ return usb_register(&btusb_driver);
+}
+
+static void __exit btusb_exit(void)
+{
+ RTKBT_DBG(KERN_INFO "rtk_btusb: btusb_exit");
+ usb_deregister(&btusb_driver);
+ wifi_power_ctrl(0);//added by rubbit
+}
+
+module_init(btusb_init);
+module_exit(btusb_exit);
+
+MODULE_AUTHOR("");
+MODULE_DESCRIPTION("Realtek Bluetooth USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+
+
+
+/*******************************
+** Reasil patch code
+********************************/
+#define CMD_CMP_EVT 0x0e
+#define PKT_LEN 300
+#define MSG_TO 1000
+#define PATCH_SEG_MAX 252
+#define DATA_END 0x80
+#define DOWNLOAD_OPCODE 0xfc20
+#define BTOFF_OPCODE 0xfc28
+#define TRUE 1
+#define FALSE 0
+#define CMD_HDR_LEN sizeof(struct hci_command_hdr)
+#define EVT_HDR_LEN sizeof(struct hci_event_hdr)
+#define CMD_CMP_LEN sizeof(struct hci_ev_cmd_complete)
+
+
+enum rtk_endpoit {
+ CTRL_EP = 0,
+ INTR_EP = 1,
+ BULK_EP = 2,
+ ISOC_EP = 3
+};
+
+typedef struct {
+ uint16_t prod_id;
+ uint16_t lmp_sub;
+ char *patch_name;
+ char *config_name;
+ uint8_t *fw_cache;
+ int fw_len;
+} patch_info;
+
+typedef struct {
+ struct list_head list_node;
+ struct usb_interface *intf;
+ struct usb_device *udev;
+ struct notifier_block pm_notifier;
+ patch_info *patch_entry;
+} dev_data;
+
+typedef struct {
+ dev_data *dev_entry;
+ int pipe_in, pipe_out;
+ uint8_t *send_pkt;
+ uint8_t *rcv_pkt;
+ struct hci_command_hdr *cmd_hdr;
+ struct hci_event_hdr *evt_hdr;
+ struct hci_ev_cmd_complete *cmd_cmp;
+ uint8_t *req_para, *rsp_para;
+ uint8_t *fw_data;
+ int pkt_len, fw_len;
+} xchange_data;
+
+typedef struct {
+ uint8_t index;
+ uint8_t data[PATCH_SEG_MAX];
+} __attribute__((packed)) download_cp;
+
+typedef struct {
+ uint8_t status;
+ uint8_t index;
+} __attribute__((packed)) download_rp;
+
+
+static dev_data* dev_data_find(struct usb_interface* intf);
+static patch_info* get_patch_entry(struct usb_device* udev);
+static int rtkbt_pm_notify(struct notifier_block* notifier, ulong pm_event, void* unused);
+static int load_firmware(dev_data* dev_entry, uint8_t** buff);
+static void init_xdata(xchange_data* xdata, dev_data* dev_entry);
+static int check_fw_version(xchange_data* xdata);
+static int get_firmware(xchange_data* xdata);
+static int download_data(xchange_data* xdata);
+static int send_hci_cmd(xchange_data* xdata);
+static int rcv_hci_evt(xchange_data* xdata);
+
+
+static patch_info patch_table[] = {
+ { 1828, 0x1200, "rtk8723a", "rtk8723_bt_config", NULL, 0 },
+ { 46880, 0x8723, "rtk8723b", "rtk8723_bt_config", NULL, 0 },
+ { 0, 0x1200, "rtk8723a", "rtk8723_bt_config", NULL, 0 }
+};
+
+static LIST_HEAD(dev_data_list);
+
+
+int patch_add(struct usb_interface* intf)
+{
+ dev_data *dev_entry;
+ struct usb_device *udev;
+
+ RTKBT_DBG("patch_add");
+ dev_entry = dev_data_find(intf);
+ if (NULL != dev_entry)
+ {
+ return -1;
+ }
+
+ udev = interface_to_usbdev(intf);
+#if BTUSB_RPM
+ RTKBT_DBG("auto suspend is enabled");
+ usb_enable_autosuspend(udev);
+ pm_runtime_set_autosuspend_delay(&(udev->dev),2000);
+#endif
+
+ dev_entry = kzalloc(sizeof(dev_data), GFP_KERNEL);
+ dev_entry->intf = intf;
+ dev_entry->udev = udev;
+ dev_entry->pm_notifier.notifier_call = rtkbt_pm_notify;
+ dev_entry->patch_entry = get_patch_entry(udev);
+ list_add(&dev_entry->list_node, &dev_data_list);
+ register_pm_notifier(&dev_entry->pm_notifier);
+
+ return 0;
+}
+
+void patch_remove(struct usb_interface* intf)
+{
+ dev_data *dev_entry;
+ struct usb_device *udev;
+ return 0; //add by rubbitxiao
+
+ udev = interface_to_usbdev(intf);
+#if BTUSB_RPM
+ usb_disable_autosuspend(udev);
+#endif
+
+ dev_entry = dev_data_find(intf);
+ if (NULL == dev_entry)
+ {
+ return;
+ }
+
+ RTKBT_DBG("patch_remove");
+ list_del(&dev_entry->list_node);
+ unregister_pm_notifier(&dev_entry->pm_notifier);
+ kfree(dev_entry);
+}
+
+int download_patch(struct usb_interface* intf)
+{
+ dev_data *dev_entry;
+ xchange_data *xdata = NULL;
+ uint8_t *fw_buf;
+ int ret_val;
+ return 0;//added by rubbitxiao
+ RTKBT_DBG("download_patch start");
+ dev_entry = dev_data_find(intf);
+ if (NULL == dev_entry)
+ {
+ ret_val = -1;
+ RTKBT_ERR("NULL == dev_entry");
+ goto patch_end;
+ }
+
+ xdata = kzalloc(sizeof(xchange_data), GFP_KERNEL);
+ if(NULL == xdata)
+ {
+ ret_val = -1;
+ RTKBT_DBG("NULL == xdata");
+ goto patch_end;
+ }
+
+ init_xdata(xdata, dev_entry);
+ ret_val = check_fw_version(xdata);
+ if (ret_val != 0)
+ {
+ goto patch_end;
+ }
+
+ ret_val = get_firmware(xdata);
+ if (ret_val < 0)
+ {
+ RTKBT_ERR("get_firmware failed!");
+ goto patch_end;
+ }
+ fw_buf = xdata->fw_data;
+
+ ret_val = download_data(xdata);
+ if (ret_val < 0)
+ {
+ RTKBT_ERR("download_data failed!");
+ goto patch_fail;
+ }
+
+ ret_val = check_fw_version(xdata);
+ if (ret_val <= 0)
+ {
+ ret_val = -1;
+ goto patch_fail;
+ }
+
+ ret_val = 0;
+patch_fail:
+ kfree(fw_buf);
+patch_end:
+ if(xdata != NULL)
+ {
+ if(xdata->send_pkt)
+ kfree(xdata->send_pkt);
+ if(xdata->rcv_pkt)
+ kfree(xdata->rcv_pkt);
+ kfree(xdata);
+ }
+ RTKBT_DBG("Rtk patch end %d", ret_val);
+ return ret_val;
+}
+
+int set_btoff(struct usb_interface* intf)
+{
+ dev_data *dev_entry;
+ xchange_data *xdata = NULL;
+ int ret_val;
+
+ RTKBT_DBG("set_btoff");
+ dev_entry = dev_data_find(intf);
+ if (NULL == dev_entry)
+ {
+ return -1;
+ }
+
+ xdata = kzalloc(sizeof(xchange_data), GFP_KERNEL);
+ if(NULL == xdata)
+ {
+ ret_val = -1;
+ RTKBT_DBG("NULL == xdata");
+ return ret_val;
+ }
+
+ init_xdata(xdata, dev_entry);
+
+
+ xdata->cmd_hdr->opcode = cpu_to_le16(BTOFF_OPCODE);
+ xdata->cmd_hdr->plen = 1;
+ xdata->pkt_len = CMD_HDR_LEN + 1;
+ xdata->send_pkt[CMD_HDR_LEN] = 1;
+
+ ret_val = send_hci_cmd(xdata);
+ if (ret_val < 0)
+ {
+ goto tagEnd;
+ }
+
+ ret_val = rcv_hci_evt(xdata);
+ if (ret_val < 0)
+ {
+ goto tagEnd;
+ }
+
+tagEnd:
+ if(xdata != NULL)
+ {
+ if(xdata->send_pkt)
+ kfree(xdata->send_pkt);
+ if(xdata->rcv_pkt)
+ kfree(xdata->rcv_pkt);
+ kfree(xdata);
+ }
+
+ RTKBT_DBG("set_btoff done");
+
+ return ret_val;
+}
+
+
+dev_data* dev_data_find(struct usb_interface* intf)
+{
+ dev_data *dev_entry;
+
+ list_for_each_entry(dev_entry, &dev_data_list, list_node)
+ {
+ if (dev_entry->intf == intf)
+ {
+ return dev_entry;
+ }
+ }
+
+ return NULL;
+}
+
+patch_info* get_patch_entry(struct usb_device* udev)
+{
+ patch_info *patch_entry;
+ uint16_t pid;
+
+ patch_entry = patch_table;
+ pid = le16_to_cpu(udev->descriptor.idProduct);
+ while (pid != patch_entry->prod_id)
+ {
+ if (0 == patch_entry->prod_id) break;
+ patch_entry++;
+ }
+
+ return patch_entry;
+}
+
+int rtkbt_pm_notify(
+ struct notifier_block* notifier,
+ ulong pm_event,
+ void* unused)
+{
+ dev_data *dev_entry;
+ patch_info *patch_entry;
+ struct usb_device *udev;
+
+ dev_entry = container_of(notifier, dev_data, pm_notifier);
+ patch_entry = dev_entry->patch_entry;
+ udev = dev_entry->udev;
+ RTKBT_DBG("rtkbt_pm_notify pm_event =%ld",pm_event);
+ switch (pm_event)
+ {
+ case PM_SUSPEND_PREPARE:
+ case PM_HIBERNATION_PREPARE:
+ patch_entry->fw_len = load_firmware(dev_entry, &patch_entry->fw_cache);
+ if (patch_entry->fw_len <= 0)
+ {
+ RTKBT_DBG("rtkbt_pm_notify return NOTIFY_BAD");
+ return NOTIFY_BAD;
+ }
+
+ if (!device_may_wakeup(&udev->dev))
+ {
+ #ifdef CONFIG_RESET_RESUME
+ RTKBT_DBG("remote wakeup not support, reset_resume support ");
+ #else
+ dev_entry->intf->needs_binding = 1;
+ RTKBT_DBG("remote wakeup not support, set intf->needs_binding = 1");
+ #endif
+ }
+ break;
+
+ case PM_POST_SUSPEND:
+ case PM_POST_HIBERNATION:
+ case PM_POST_RESTORE:
+ if (patch_entry->fw_len > 0)
+ {
+ kfree(patch_entry->fw_cache);
+ patch_entry->fw_cache = NULL;
+ patch_entry->fw_len = 0;
+ }
+#if BTUSB_RPM
+ usb_disable_autosuspend(udev);
+ usb_enable_autosuspend(udev);
+ pm_runtime_set_autosuspend_delay(&(udev->dev),2000);
+#endif
+ break;
+
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+int load_firmware(dev_data* dev_entry, uint8_t** buff)
+{
+ const struct firmware *fw;
+ struct usb_device *udev;
+ patch_info *patch_entry;
+ char *fw_name;
+ int fw_len = 0, ret_val;
+
+ RTKBT_DBG("load_firmware");
+ udev = dev_entry->udev;
+ patch_entry = dev_entry->patch_entry;
+ fw_name = patch_entry->patch_name;
+ ret_val = request_firmware(&fw, fw_name, &udev->dev);
+ if (ret_val < 0) goto fw_fail;
+
+ *buff = kzalloc(fw->size, GFP_KERNEL);
+ if (NULL == *buff) goto alloc_fail;
+ memcpy(*buff, fw->data, fw->size);
+ fw_len = fw->size;
+
+#if LOAD_CONFIG
+ release_firmware(fw);
+ fw_name = patch_entry->config_name;
+ ret_val = request_firmware(&fw, fw_name, &udev->dev);
+ if (ret_val < 0)
+ {
+ fw_len = 0;
+ kfree(*buff);
+ *buff = NULL;
+ goto fw_fail;
+ }
+
+ *buff = krealloc(*buff, fw_len + fw->size, GFP_KERNEL);
+ if (NULL == *buff)
+ {
+ fw_len = 0;
+ goto alloc_fail;
+ }
+ memcpy(*buff + fw_len, fw->data, fw->size);
+ fw_len += fw->size;
+#endif
+
+alloc_fail:
+ release_firmware(fw);
+fw_fail:
+ return fw_len;
+}
+
+void init_xdata(
+ xchange_data* xdata,
+ dev_data* dev_entry)
+{
+ memset(xdata, 0, sizeof(xchange_data));
+ xdata->dev_entry = dev_entry;
+ xdata->pipe_in = usb_rcvintpipe(dev_entry->udev, INTR_EP);
+ xdata->pipe_out = usb_sndctrlpipe(dev_entry->udev, CTRL_EP);
+ xdata->send_pkt = kzalloc(PKT_LEN, GFP_KERNEL);
+ xdata->rcv_pkt = kzalloc(PKT_LEN, GFP_KERNEL);
+ xdata->cmd_hdr = (struct hci_command_hdr*)(xdata->send_pkt);
+ xdata->evt_hdr = (struct hci_event_hdr*)(xdata->rcv_pkt);
+ xdata->cmd_cmp = (struct hci_ev_cmd_complete*)(xdata->rcv_pkt + EVT_HDR_LEN);
+ xdata->req_para = xdata->send_pkt + CMD_HDR_LEN;
+ xdata->rsp_para = xdata->rcv_pkt + EVT_HDR_LEN + CMD_CMP_LEN;
+}
+
+int check_fw_version(xchange_data* xdata)
+{
+ struct hci_rp_read_local_version *read_ver_rsp;
+ patch_info *patch_entry;
+ int ret_val;
+
+ xdata->cmd_hdr->opcode = cpu_to_le16(HCI_OP_READ_LOCAL_VERSION);
+ xdata->cmd_hdr->plen = 0;
+ xdata->pkt_len = CMD_HDR_LEN;
+
+ ret_val = send_hci_cmd(xdata);
+ if (ret_val < 0)
+ {
+ goto version_end;
+ }
+
+ ret_val = rcv_hci_evt(xdata);
+ if (ret_val < 0)
+ {
+ goto version_end;
+ }
+
+ patch_entry = xdata->dev_entry->patch_entry;
+ read_ver_rsp = (struct hci_rp_read_local_version*)(xdata->rsp_para);
+ RTKBT_DBG("check_fw_version : read_ver_rsp->lmp_subver = 0x%x",read_ver_rsp->lmp_subver);
+ if (patch_entry->lmp_sub != read_ver_rsp->lmp_subver)
+ {
+ return 1;
+ }
+
+ ret_val = 0;
+version_end:
+ return ret_val;
+}
+
+int get_firmware(xchange_data* xdata)
+{
+ dev_data *dev_entry;
+ patch_info *patch_entry;
+
+ dev_entry = xdata->dev_entry;
+ patch_entry = dev_entry->patch_entry;
+ if (patch_entry->fw_len > 0)
+ {
+ xdata->fw_data = kzalloc(patch_entry->fw_len, GFP_KERNEL);
+ if (NULL == xdata->fw_data) return -ENOMEM;
+ memcpy(xdata->fw_data, patch_entry->fw_cache, patch_entry->fw_len);
+ xdata->fw_len = patch_entry->fw_len;
+ }
+ else
+ {
+ xdata->fw_len = load_firmware(dev_entry, &xdata->fw_data);
+ if (xdata->fw_len <= 0) return -1;
+ }
+
+ return 0;
+}
+
+int download_data(xchange_data* xdata)
+{
+ download_cp *cmd_para;
+ download_rp *evt_para;
+ uint8_t *pcur;
+ int pkt_len, frag_num, frag_len;
+ int i, ret_val;
+
+ cmd_para = (download_cp*)xdata->req_para;
+ evt_para = (download_rp*)xdata->rsp_para;
+ pcur = xdata->fw_data;
+ pkt_len = CMD_HDR_LEN + sizeof(download_cp);
+ frag_num = xdata->fw_len / PATCH_SEG_MAX + 1;
+ frag_len = PATCH_SEG_MAX;
+
+ for (i = 0; i < frag_num; i++)
+ {
+ cmd_para->index = i;
+ if (i == (frag_num - 1))
+ {
+ cmd_para->index |= DATA_END;
+ frag_len = xdata->fw_len % PATCH_SEG_MAX;
+ pkt_len -= (PATCH_SEG_MAX - frag_len);
+ }
+ xdata->cmd_hdr->opcode = cpu_to_le16(DOWNLOAD_OPCODE);
+ xdata->cmd_hdr->plen = sizeof(uint8_t) + frag_len;
+ xdata->pkt_len = pkt_len;
+ memcpy(cmd_para->data, pcur, frag_len);
+
+ ret_val = send_hci_cmd(xdata);
+ if (ret_val < 0)
+ {
+ return ret_val;
+ }
+
+ ret_val = rcv_hci_evt(xdata);
+ if (ret_val < 0)
+ {
+ return ret_val;
+ }
+ if (0 != evt_para->status)
+ {
+ return -1;
+ }
+
+ pcur += PATCH_SEG_MAX;
+ }
+
+ return xdata->fw_len;
+}
+
+int send_hci_cmd(xchange_data* xdata)
+{
+ int ret_val;
+
+ ret_val = usb_control_msg(
+ xdata->dev_entry->udev, xdata->pipe_out,
+ 0, USB_TYPE_CLASS, 0, 0,
+ (void*)(xdata->send_pkt),
+ xdata->pkt_len, MSG_TO);
+
+ return ret_val;
+}
+
+int rcv_hci_evt(xchange_data* xdata)
+{
+ int ret_len, ret_val;
+ int i; // Added by Realtek
+
+ while (1)
+ {
+
+ // **************************** Modifed by Realtek (begin)
+ for(i = 0; i < 5; i++) // Try to send USB interrupt message 5 times.
+ {
+ ret_val = usb_interrupt_msg(
+ xdata->dev_entry->udev, xdata->pipe_in,
+ (void*)(xdata->rcv_pkt), PKT_LEN,
+ &ret_len, MSG_TO);
+ if(ret_val >= 0)
+ break;
+ }
+ // **************************** Modifed by Realtek (end)
+
+ if (ret_val < 0)
+ {
+ return ret_val;
+ }
+
+
+ if (CMD_CMP_EVT == xdata->evt_hdr->evt)
+ {
+ if (xdata->cmd_hdr->opcode == xdata->cmd_cmp->opcode)
+ return ret_len;
+ }
+
+
+ }
+}
+
+void print_acl (struct sk_buff *skb,int dataOut)
+{
+#if PRINT_ACL_DATA
+ uint wlength = skb->len;
+ uint icount=0;
+ u16* handle = (u16*)(skb->data);
+ u16 dataLen=*(handle+1);
+ u8* acl_data =(u8*)(skb->data);
+//if (0==dataOut)
+ printk("%d handle:%04x,len:%d,",dataOut,*handle,dataLen);
+//else
+// printk("In handle:%04x,len:%d,",*handle,dataLen);
+/* for(icount=4;(icount<wlength)&&(icount<32);icount++)
+ {
+ printk("%02x ",*(acl_data+icount) );
+ }
+ printk("\n");
+*/
+#endif
+}
+void print_command(struct sk_buff *skb)
+{
+
+#if 0
+ uint wlength = skb->len;
+ uint icount=0;
+ u16* opcode = (u16*)(skb->data);
+ u8* cmd_data =(u8*)(skb->data);
+ u8 paramLen=*(cmd_data+2);
+
+ switch (*opcode) {
+ case HCI_OP_INQUIRY:
+ printk("HCI_OP_INQUIRY");
+ break;
+ case HCI_OP_INQUIRY_CANCEL:
+ printk("HCI_OP_INQUIRY_CANCEL");
+ break;
+ case HCI_OP_EXIT_PERIODIC_INQ:
+ printk("HCI_OP_EXIT_PERIODIC_INQ");
+ break;
+ case HCI_OP_CREATE_CONN:
+ printk("HCI_OP_CREATE_CONN");
+ break;
+ case HCI_OP_DISCONNECT:
+ printk("HCI_OP_DISCONNECT");
+ break;
+ case HCI_OP_CREATE_CONN_CANCEL:
+ printk("HCI_OP_CREATE_CONN_CANCEL");
+ break;
+ case HCI_OP_ACCEPT_CONN_REQ:
+ printk("HCI_OP_ACCEPT_CONN_REQ");
+ break;
+ case HCI_OP_REJECT_CONN_REQ:
+ printk("HCI_OP_REJECT_CONN_REQ");
+ break;
+ case HCI_OP_AUTH_REQUESTED:
+ printk("HCI_OP_AUTH_REQUESTED");
+ break;
+ case HCI_OP_SET_CONN_ENCRYPT:
+ printk("HCI_OP_SET_CONN_ENCRYPT");
+ break;
+ case HCI_OP_REMOTE_NAME_REQ:
+ printk("HCI_OP_REMOTE_NAME_REQ");
+ break;
+ case HCI_OP_READ_REMOTE_FEATURES:
+ printk("HCI_OP_READ_REMOTE_FEATURES");
+ break;
+ case HCI_OP_SNIFF_MODE:
+ printk("HCI_OP_SNIFF_MODE");
+ break;
+ case HCI_OP_EXIT_SNIFF_MODE:
+ printk("HCI_OP_EXIT_SNIFF_MODE");
+ break;
+ case HCI_OP_SWITCH_ROLE:
+ printk("HCI_OP_SWITCH_ROLE");
+ break;
+ case HCI_OP_SNIFF_SUBRATE:
+ printk("HCI_OP_SNIFF_SUBRATE");
+ break;
+ case HCI_OP_RESET:
+ printk("HCI_OP_RESET");
+ break;
+ default:
+ printk("CMD");
+ break;
+ }
+ printk(":%04x,len:%d,",*opcode,paramLen);
+ for(icount=3;(icount<wlength)&&(icount<24);icount++)
+ {
+ printk("%02x ",*(cmd_data+icount) );
+ }
+ printk("\n");
+
+#endif
+}
+void print_event(struct sk_buff *skb)
+{
+ //printk("print_event\n");
+#if 0
+ uint wlength = skb->len;
+ uint icount=0;
+ u8* opcode = (u8*)(skb->data);
+ u8 paramLen=*(opcode+1);
+
+ switch (*opcode) {
+ case HCI_EV_INQUIRY_COMPLETE:
+ printk("HCI_EV_INQUIRY_COMPLETE");
+ break;
+ case HCI_EV_INQUIRY_RESULT:
+ printk("HCI_EV_INQUIRY_RESULT");
+ break;
+ case HCI_EV_CONN_COMPLETE:
+ printk("HCI_EV_CONN_COMPLETE");
+ break;
+ case HCI_EV_CONN_REQUEST:
+ printk("HCI_EV_CONN_REQUEST");
+ break;
+ case HCI_EV_DISCONN_COMPLETE:
+ printk("HCI_EV_DISCONN_COMPLETE");
+ break;
+ case HCI_EV_AUTH_COMPLETE:
+ printk("HCI_EV_AUTH_COMPLETE");
+ break;
+ case HCI_EV_REMOTE_NAME:
+ printk("HCI_EV_REMOTE_NAME");
+ break;
+ case HCI_EV_ENCRYPT_CHANGE:
+ printk("HCI_EV_ENCRYPT_CHANGE");
+ break;
+ case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
+ printk("HCI_EV_CHANGE_LINK_KEY_COMPLETE");
+ break;
+ case HCI_EV_REMOTE_FEATURES:
+ printk("HCI_EV_REMOTE_FEATURES");
+ break;
+ case HCI_EV_REMOTE_VERSION:
+ printk("HCI_EV_REMOTE_VERSION");
+ break;
+ case HCI_EV_QOS_SETUP_COMPLETE:
+ printk("HCI_EV_QOS_SETUP_COMPLETE");
+ break;
+ case HCI_EV_CMD_COMPLETE:
+ printk("HCI_EV_CMD_COMPLETE");
+ break;
+ case HCI_EV_CMD_STATUS:
+ printk("HCI_EV_CMD_STATUS");
+ break;
+ case HCI_EV_ROLE_CHANGE:
+ printk("HCI_EV_ROLE_CHANGE");
+ break;
+ case HCI_EV_NUM_COMP_PKTS:
+ printk("HCI_EV_NUM_COMP_PKTS");
+ break;
+ case HCI_EV_MODE_CHANGE:
+ printk("HCI_EV_MODE_CHANGE");
+ break;
+ case HCI_EV_PIN_CODE_REQ:
+ printk("HCI_EV_PIN_CODE_REQ");
+ break;
+ case HCI_EV_LINK_KEY_REQ:
+ printk("HCI_EV_LINK_KEY_REQ");
+ break;
+ case HCI_EV_LINK_KEY_NOTIFY:
+ printk("HCI_EV_LINK_KEY_NOTIFY");
+ break;
+ case HCI_EV_CLOCK_OFFSET:
+ printk("HCI_EV_CLOCK_OFFSET");
+ break;
+ case HCI_EV_PKT_TYPE_CHANGE:
+ printk("HCI_EV_PKT_TYPE_CHANGE");
+ break;
+ case HCI_EV_PSCAN_REP_MODE:
+ printk("HCI_EV_PSCAN_REP_MODE");
+ break;
+ case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
+ printk("HCI_EV_INQUIRY_RESULT_WITH_RSSI");
+ break;
+ case HCI_EV_REMOTE_EXT_FEATURES:
+ printk("HCI_EV_REMOTE_EXT_FEATURES");
+ break;
+ case HCI_EV_SYNC_CONN_COMPLETE:
+ printk("HCI_EV_SYNC_CONN_COMPLETE");
+ break;
+ case HCI_EV_SYNC_CONN_CHANGED:
+ printk("HCI_EV_SYNC_CONN_CHANGED");
+ break;
+ case HCI_EV_SNIFF_SUBRATE:
+ printk("HCI_EV_SNIFF_SUBRATE");
+ break;
+ case HCI_EV_EXTENDED_INQUIRY_RESULT:
+ printk("HCI_EV_EXTENDED_INQUIRY_RESULT");
+ break;
+ case HCI_EV_IO_CAPA_REQUEST:
+ printk("HCI_EV_IO_CAPA_REQUEST");
+ break;
+ case HCI_EV_SIMPLE_PAIR_COMPLETE:
+ printk("HCI_EV_SIMPLE_PAIR_COMPLETE");
+ break;
+ case HCI_EV_REMOTE_HOST_FEATURES:
+ printk("HCI_EV_REMOTE_HOST_FEATURES");
+ break;
+ default:
+ printk("event");
+ break;
+ }
+ printk(":%02x,len:%d,",*opcode,paramLen);
+ for(icount=2;(icount<wlength)&&(icount<24);icount++)
+ {
+ printk("%02x ",*(opcode+icount) );
+ }
+ printk("\n");
+
+#endif
+
+}
+
+#if CONFIG_BLUEDROID //for 4.2
+//=========================================
+/*
+ * Realtek - Add for Android 4.2 (fake character device)
+ */
+static int
+btfcd_open(struct inode *inode_p,
+ struct file *file_p)
+
+{
+ struct btusb_data *data;
+ struct hci_dev *hdev;
+
+ RTKBT_DBG("btfcd open\n");
+
+ hdev = hci_dev_get(0);
+ if (!hdev)
+ return -1;
+ data = GET_DRV_DATA(hdev);
+
+ skb_queue_head_init(&data->readq);
+ init_waitqueue_head(&data->read_wait);
+
+ atomic_inc(&hdev->promisc);
+ file_p->private_data = data;
+
+ hci_dev_open(0);
+ return nonseekable_open(inode_p, file_p);
+}
+
+static int
+btfcd_close(struct inode *inode_p,
+ struct file *file_p)
+{
+ struct hci_dev *hdev;
+
+ RTKBT_DBG("btfcd close\n");
+
+ hdev = hci_dev_get(0);
+ atomic_dec(&hdev->promisc);
+
+ hci_dev_close(0);
+
+ file_p->private_data = NULL;
+ return SUCCESS;
+}
+
+static inline ssize_t usb_put_user(struct btusb_data *data,
+ struct sk_buff *skb, char __user *buf, int count)
+{
+ char __user *ptr = buf;
+ int len, total = 0;
+
+ len = min_t(unsigned int, skb->len, count);
+
+ if (copy_to_user(ptr, skb->data, len))
+ return -EFAULT;
+
+ total += len;
+
+ return total;
+}
+
+
+static struct sk_buff *rtk_skb_queue[QUEUE_SIZE];
+static int rtk_skb_queue_front = -1;
+static int rtk_skb_queue_rear = -1;
+
+static void enqueue(struct sk_buff *skb)
+{
+ if(rtk_skb_queue_front == (rtk_skb_queue_rear+1)%QUEUE_SIZE)
+ {
+ RTKBT_ERR("queue is full\n");
+ }
+ else
+ {
+ if(rtk_skb_queue_front==-1)
+ rtk_skb_queue_front=rtk_skb_queue_rear=0;
+ else
+ rtk_skb_queue_rear=(rtk_skb_queue_rear+1)%QUEUE_SIZE;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+ rtk_skb_queue[rtk_skb_queue_rear] = __pskb_copy(skb, 1, GFP_ATOMIC);
+#else
+ rtk_skb_queue[rtk_skb_queue_rear] = pskb_copy(skb, GFP_ATOMIC);
+#endif
+
+ }
+}
+
+
+static struct sk_buff* dequeue(void)
+{
+ struct sk_buff *skb;
+ if(rtk_skb_queue_front == -1)
+ {
+ RTKBT_ERR("queue is empty\n");
+ return NULL;
+ }
+ else
+ {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+ skb = __pskb_copy(rtk_skb_queue[rtk_skb_queue_front], 1, GFP_ATOMIC);
+#else
+ skb = pskb_copy(rtk_skb_queue[rtk_skb_queue_front], GFP_ATOMIC);
+#endif
+ kfree_skb(rtk_skb_queue[rtk_skb_queue_front]);
+ if(rtk_skb_queue_front==rtk_skb_queue_rear)
+ rtk_skb_queue_front=rtk_skb_queue_rear=-1;
+ else
+ rtk_skb_queue_front = (rtk_skb_queue_front+1)%QUEUE_SIZE;
+ return skb;
+ }
+ return NULL;
+}
+
+static int is_queue_empty(void)
+{
+ return (rtk_skb_queue_front == -1)?1:0;
+}
+
+static ssize_t
+btfcd_read(struct file *file_p,
+ char __user *buf_p,
+ size_t count,
+ loff_t *pos_p)
+{
+ struct btusb_data *data;
+ struct sk_buff *skb;
+ ssize_t ret = 0;
+
+ //RTKBT_DBG("==========btfcd_read\n");
+
+ while (count) {
+ data = GET_DRV_DATA(hci_dev_get(0));
+ if (!is_queue_empty()) {
+ skb = dequeue();
+ } else {
+ skb = NULL;
+ }
+ if (skb) {
+ ret = usb_put_user(data, skb, buf_p, count);
+ kfree_skb(skb);
+
+ skb = NULL;
+ if (ret < 0){
+ RTKBT_ERR("==========btfcd copy_to_user return -1 \n");
+ }
+ break;
+ }
+
+ ret = wait_event_interruptible(data->read_wait, !is_queue_empty());
+ if (ret < 0){
+ //RTKBT_DBG("I return read %d \n", ret);
+ break;
+ }
+ }
+ return ret;
+} /* End of btfcd_read */
+
+static ssize_t
+btfcd_write(struct file *file_p,
+ const char __user *buf_p,
+ size_t count,
+ loff_t *pos_p)
+{
+ struct btusb_data *data = file_p->private_data;
+ struct sk_buff *skb;
+
+ //RTKBT_DBG("==========btfcd_write\n");
+
+ if (count > HCI_MAX_FRAME_SIZE)
+ return -EINVAL;
+
+ skb = bt_skb_alloc(count, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ if (copy_from_user(skb_put(skb, count), buf_p, count)) {
+ printk("==========btfcd copy_from_user return -1 \n");
+ kfree_skb(skb);
+ return -EFAULT;
+ }
+
+ if (!data || !data->hdev) {
+ return -EFAULT;
+ }
+
+ skb->dev = (void *) data->hdev;
+ bt_cb(skb)->pkt_type = *((__u8 *) skb->data);
+ skb_pull(skb, 1);
+
+ data->hdev->send(skb);
+
+ return count;
+} /* End of btfcd_write */
+
+static unsigned int btfcd_poll(struct file *file, poll_table *wait)
+{
+ struct btusb_data *data;
+ data = GET_DRV_DATA(hci_dev_get(0));
+
+ //RTKBT_DBG("==========btfcd_poll\n");
+
+ poll_wait(file, &data->read_wait, wait);
+
+ if (!is_queue_empty())
+ return POLLIN | POLLRDNORM;
+
+ return POLLOUT | POLLWRNORM;
+} /* End of btfcd_poll */
+
+static int btfcd_init(void)
+{
+ printk("Registering file operations for btfcd driver\n");
+
+ /*
+ * Register btusb as a character device driver with linux OS and return
+ * ERROR on failure
+ */
+ if ((cl = class_create(THIS_MODULE, DEVICE_NAME)) == NULL)
+ {
+ return ERROR;
+ }
+ if (alloc_chrdev_region(&first, 0, 1, DEVICE_NAME) < 0)
+ {
+ class_destroy(cl);
+ return ERROR;
+ }
+ if (device_create(cl, NULL, first, NULL, DEVICE_NAME) == NULL)
+ {
+ unregister_chrdev_region(first, 1);
+ class_destroy(cl);
+ return ERROR;
+ }
+ cdev_init(&c_dev, &btfcd_file_ops_g);
+ if (cdev_add(&c_dev, first, 1) == -1)
+ {
+ device_destroy(cl, first);
+ unregister_chrdev_region(first, 1);
+ class_destroy(cl);
+ return ERROR;
+ }
+
+ printk("Class driver initialized successfully\n");
+
+ return SUCCESS;
+} /* end of btfcd_init() */
+
+static void btfcd_exit(void)
+{
+ printk("Unregister btfcd as a character device driver\n");
+
+ /*
+ * Unregister btusb as a character device driver with linux OS and on
+ * failure try again unregistring
+ */
+ device_destroy(cl, first);
+ cdev_del(&c_dev);
+ unregister_chrdev_region(first, 1);
+ class_destroy(cl);
+
+ printk("Exiting btfcd driver\n");
+
+ return ;
+} /* end of btfcd_exit() */
+
+static void hci_send_to_stack(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct sk_buff *rtk_skb_copy = NULL;
+ struct btusb_data *data;
+
+ //RTKBT_DBG("hci_send_to_stack\n");
+
+ if (!hdev) {
+ RTKBT_ERR("Frame for unknown HCI device (hdev=NULL)");
+ return;
+ }
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+ RTKBT_ERR("HCI not running");
+ return;
+ }
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+ rtk_skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC);
+#else
+ rtk_skb_copy = pskb_copy(skb, GFP_ATOMIC);
+#endif
+ if (!rtk_skb_copy) {
+ RTKBT_ERR("copy skb error");
+ return;
+ }
+
+ memcpy(skb_push(rtk_skb_copy, 1), &bt_cb(skb)->pkt_type, 1);
+ enqueue(rtk_skb_copy);
+ kfree_skb(rtk_skb_copy);
+ data = GET_DRV_DATA(hci_dev_get(0));
+ wake_up_interruptible(&data->read_wait);
+
+ return ;
+}
+/*
+ * Realtek - Add for Android 4.2 (fake character device) end
+ */
+//=========================================
+
+//=========================================
+/*
+ * Realtek - Integrate from hci_core.c
+ */
+
+/* Get HCI device by index.
+ * Device is held on return. */
+struct hci_dev *hci_dev_get(int index)
+{
+ //RTKBT_DBG("hci_dev_get index=%d", index);
+
+ if (index !=0)
+ return NULL;
+
+ if (Ghdev==NULL)
+ RTKBT_ERR("hci_dev_get Ghdev==NULL");
+ return Ghdev;
+}
+
+/* ---- HCI ioctl helpers ---- */
+int hci_dev_open(__u16 dev)
+{
+ struct hci_dev *hdev;
+ int ret = 0;
+
+ //RTKBT_DBG("hci_dev_open dev=%d ", dev);
+ hdev = hci_dev_get(dev);
+ if (!hdev)
+ return -ENODEV;
+
+ //RTKBT_DBG("%s %p", hdev->name, hdev);
+
+ //RTKBT_DBG("hci_dev_open ------------1");
+ if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {
+ ret = -ENODEV;
+ goto done;
+ }
+
+
+ if (test_bit(HCI_UP, &hdev->flags)) {
+ ret = -EALREADY;
+ goto done;
+ }
+
+ //RTKBT_DBG("hci_dev_open ------------1");
+ if (hdev->open(hdev)) {
+ ret = -EIO;
+ goto done;
+ }
+
+ //RTKBT_DBG("hci_dev_open ------------2");
+ set_bit(HCI_UP, &hdev->flags);
+done:
+ return ret;
+}
+
+static int hci_dev_do_close(struct hci_dev *hdev)
+{
+ //RTKBT_DBG(" hci_dev_do_close %s %p", hdev->name, hdev);
+ if (hdev->flush)
+ hdev->flush(hdev);
+ /* After this point our queues are empty
+ * and no tasks are scheduled. */
+ hdev->close(hdev);
+ /* Clear flags */
+ hdev->flags = 0;
+ return 0;
+}
+int hci_dev_close(__u16 dev)
+{
+ struct hci_dev *hdev;
+ int err;
+ //RTKBT_DBG(" hci_dev_close");
+ hdev = hci_dev_get(dev);
+ if (!hdev)
+ return -ENODEV;
+
+ err = hci_dev_do_close(hdev);
+
+ return err;
+}
+
+struct hci_dev *hci_alloc_dev(void)
+{
+ struct hci_dev *hdev;
+
+ hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
+ if (!hdev)
+ return NULL;
+
+ return hdev;
+}
+
+/* Free HCI device */
+void hci_free_dev(struct hci_dev *hdev)
+{
+ // skb_queue_purge(&hdev->driver_init);
+ //RTKBT_DBG("hci_free_dev-----1 ");
+ /* will free via device release */
+ // put_device(&hdev->dev);
+ kfree(hdev);
+ //RTKBT_DBG("hci_free_dev-----2 ");
+}
+
+/* Register HCI device */
+int hci_register_dev(struct hci_dev *hdev)
+{
+ int i, id;
+
+ RTKBT_DBG("hci_register_dev %p name %s bus %d", hdev, hdev->name, hdev->bus);
+ /* Do not allow HCI_AMP devices to register at index 0,
+ * so the index can be used as the AMP controller ID.
+ */
+ id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;
+
+ RTKBT_DBG("id=%d ",id);
+
+ write_lock(&hci_dev_list_lock);
+
+ sprintf(hdev->name, "hci%d", id);
+ RTKBT_DBG("hdev->name=%s ",hdev->name);
+ hdev->id = id;
+ mutex_init(&hdev->lock);
+
+ hdev->flags = 0;
+ hdev->dev_flags = 0;
+ for (i = 0; i < NUM_REASSEMBLY; i++)
+ hdev->reassembly[i] = NULL;
+
+ memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
+ atomic_set(&hdev->promisc, 0);
+
+ if(Ghdev)
+ RTKBT_ERR(" ====Ghdev not null !!!!");
+ Ghdev =hdev;
+ if(Ghdev)
+ RTKBT_ERR(" ===================hci_register_dev success");
+ write_unlock(&hci_dev_list_lock);
+
+ return id;
+}
+
+/* Unregister HCI device */
+void hci_unregister_dev(struct hci_dev *hdev)
+{
+ int i;
+
+ RTKBT_DBG("hci_unregister_dev hdev%p name %s bus %d", hdev, hdev->name, hdev->bus);
+ set_bit(HCI_UNREGISTER, &hdev->dev_flags);
+
+ write_lock(&hci_dev_list_lock);
+ Ghdev = NULL;
+ write_unlock(&hci_dev_list_lock);
+
+ hci_dev_do_close(hdev);
+ for (i = 0; i < NUM_REASSEMBLY; i++)
+ kfree_skb(hdev->reassembly[i]);
+}
+
+/* Receive frame from HCI drivers */
+int hci_recv_frame(struct sk_buff *skb)
+{
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+// RTKBT_DBG("hci_recv_frame hdev->flags =%d",hdev->flags);
+ if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
+ && !test_bit(HCI_INIT, &hdev->flags))) {
+ kfree_skb(skb);
+ return -ENXIO;
+ }
+
+ /* Incomming skb */
+ bt_cb(skb)->incoming = 1;
+
+ /* Time stamp */
+ __net_timestamp(skb);
+
+ if (atomic_read(&hdev->promisc)) {
+ /* Send copy to the sockets */
+ //RTKBT_DBG("send data to stack");
+ hci_send_to_stack(hdev, skb);
+ }
+ kfree_skb(skb);
+ return 0;
+}
+
+static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
+ int count, __u8 index)
+{
+ int len = 0;
+ int hlen = 0;
+ int remain = count;
+ struct sk_buff *skb;
+ struct bt_skb_cb *scb;
+
+ if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||
+ index >= NUM_REASSEMBLY)
+ return -EILSEQ;
+
+ skb = hdev->reassembly[index];
+
+ RTKBT_DBG("hci_reassembly,skb:0x%x,type:0x%x\n",skb,type);
+ if (!skb) {
+ switch (type) {
+ case HCI_ACLDATA_PKT:
+ len = HCI_MAX_FRAME_SIZE;
+ hlen = HCI_ACL_HDR_SIZE;
+ break;
+ case HCI_EVENT_PKT:
+ len = HCI_MAX_EVENT_SIZE;
+ hlen = HCI_EVENT_HDR_SIZE;
+ break;
+ case HCI_SCODATA_PKT:
+ len = HCI_MAX_SCO_SIZE;
+ hlen = HCI_SCO_HDR_SIZE;
+ break;
+ }
+
+ skb = bt_skb_alloc(len, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ scb = (void *) skb->cb;
+ scb->expect = hlen;
+ scb->pkt_type = type;
+
+ skb->dev = (void *) hdev;
+ hdev->reassembly[index] = skb;
+ }
+
+ while (count) {
+ scb = (void *) skb->cb;
+ len = min_t(uint, scb->expect, count);
+
+ memcpy(skb_put(skb, len), data, len);
+
+ count -= len;
+ data += len;
+ scb->expect -= len;
+ remain = count;
+
+ switch (type) {
+ case HCI_EVENT_PKT:
+ if (skb->len == HCI_EVENT_HDR_SIZE) {
+ struct hci_event_hdr *h = hci_event_hdr(skb);
+ scb->expect = h->plen;
+
+ if (skb_tailroom(skb) < scb->expect) {
+ kfree_skb(skb);
+ hdev->reassembly[index] = NULL;
+ return -ENOMEM;
+ }
+ }
+ break;
+
+ case HCI_ACLDATA_PKT:
+ if (skb->len == HCI_ACL_HDR_SIZE) {
+ struct hci_acl_hdr *h = hci_acl_hdr(skb);
+ scb->expect = __le16_to_cpu(h->dlen);
+
+ if (skb_tailroom(skb) < scb->expect) {
+ kfree_skb(skb);
+ hdev->reassembly[index] = NULL;
+ return -ENOMEM;
+ }
+ }
+ break;
+
+ case HCI_SCODATA_PKT:
+ if (skb->len == HCI_SCO_HDR_SIZE) {
+ struct hci_sco_hdr *h = hci_sco_hdr(skb);
+ scb->expect = h->dlen;
+
+ if (skb_tailroom(skb) < scb->expect) {
+ kfree_skb(skb);
+ hdev->reassembly[index] = NULL;
+ return -ENOMEM;
+ }
+ }
+ break;
+ }
+
+ if (scb->expect == 0) {
+ /* Complete frame */
+
+ if(HCI_ACLDATA_PKT==type )
+ print_acl(skb,0);
+ if(HCI_EVENT_PKT==type)
+ print_event(skb);
+
+ bt_cb(skb)->pkt_type = type;
+ hci_recv_frame(skb);
+
+ hdev->reassembly[index] = NULL;
+ return remain;
+ }
+ }
+
+ return remain;
+}
+
+int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
+{
+ int rem = 0;
+
+ if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
+ return -EILSEQ;
+
+ while (count) {
+ rem = hci_reassembly(hdev, type, data, count, type - 1);
+ if (rem < 0)
+ return rem;
+
+ data += (count - rem);
+ count = rem;
+ }
+
+ return rem;
+}
+/*
+ * Realtek - Integrate from hci_core.c end
+ */
+//=========================================
+#endif
|