diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/bluetooth/hci_h4.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/bluetooth/hci_h4.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/ANDROID_3.4.5/drivers/bluetooth/hci_h4.c b/ANDROID_3.4.5/drivers/bluetooth/hci_h4.c deleted file mode 100644 index 74832946..00000000 --- a/ANDROID_3.4.5/drivers/bluetooth/hci_h4.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * - * Bluetooth HCI UART 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> - * - * - * 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/module.h> - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/poll.h> - -#include <linux/slab.h> -#include <linux/tty.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/signal.h> -#include <linux/ioctl.h> -#include <linux/skbuff.h> - -#include <net/bluetooth/bluetooth.h> -#include <net/bluetooth/hci_core.h> - -#include "hci_uart.h" - -#define VERSION "1.2" - -struct h4_struct { - unsigned long rx_state; - unsigned long rx_count; - struct sk_buff *rx_skb; - struct sk_buff_head txq; -}; - -/* H4 receiver States */ -#define H4_W4_PACKET_TYPE 0 -#define H4_W4_EVENT_HDR 1 -#define H4_W4_ACL_HDR 2 -#define H4_W4_SCO_HDR 3 -#define H4_W4_DATA 4 - -/* Initialize protocol */ -static int h4_open(struct hci_uart *hu) -{ - struct h4_struct *h4; - - BT_DBG("hu %p", hu); - - h4 = kzalloc(sizeof(*h4), GFP_KERNEL); - if (!h4) - return -ENOMEM; - - skb_queue_head_init(&h4->txq); - - hu->priv = h4; - return 0; -} - -/* Flush protocol data */ -static int h4_flush(struct hci_uart *hu) -{ - struct h4_struct *h4 = hu->priv; - - BT_DBG("hu %p", hu); - - skb_queue_purge(&h4->txq); - - return 0; -} - -/* Close protocol */ -static int h4_close(struct hci_uart *hu) -{ - struct h4_struct *h4 = hu->priv; - - hu->priv = NULL; - - BT_DBG("hu %p", hu); - - skb_queue_purge(&h4->txq); - - kfree_skb(h4->rx_skb); - - hu->priv = NULL; - kfree(h4); - - return 0; -} - -/* Enqueue frame for transmittion (padding, crc, etc) */ -static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb) -{ - struct h4_struct *h4 = hu->priv; - - BT_DBG("hu %p skb %p", hu, skb); - - /* Prepend skb with frame type */ - memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); - skb_queue_tail(&h4->txq, skb); - - return 0; -} - -static inline int h4_check_data_len(struct h4_struct *h4, int len) -{ - register int room = skb_tailroom(h4->rx_skb); - - BT_DBG("len %d room %d", len, room); - - if (!len) { - hci_recv_frame(h4->rx_skb); - } else if (len > room) { - BT_ERR("Data length is too large"); - kfree_skb(h4->rx_skb); - } else { - h4->rx_state = H4_W4_DATA; - h4->rx_count = len; - return len; - } - - h4->rx_state = H4_W4_PACKET_TYPE; - h4->rx_skb = NULL; - h4->rx_count = 0; - - return 0; -} - -/* Recv data */ -static int h4_recv(struct hci_uart *hu, void *data, int count) -{ - int ret; - - ret = hci_recv_stream_fragment(hu->hdev, data, count); - if (ret < 0) { - BT_ERR("Frame Reassembly Failed"); - return ret; - } - - return count; -} - -static struct sk_buff *h4_dequeue(struct hci_uart *hu) -{ - struct h4_struct *h4 = hu->priv; - return skb_dequeue(&h4->txq); -} - -static struct hci_uart_proto h4p = { - .id = HCI_UART_H4, - .open = h4_open, - .close = h4_close, - .recv = h4_recv, - .enqueue = h4_enqueue, - .dequeue = h4_dequeue, - .flush = h4_flush, -}; - -int __init h4_init(void) -{ - int err = hci_uart_register_proto(&h4p); - - if (!err) - BT_INFO("HCI H4 protocol initialized"); - else - BT_ERR("HCI H4 protocol registration failed"); - - return err; -} - -int __exit h4_deinit(void) -{ - return hci_uart_unregister_proto(&h4p); -} |