diff options
Diffstat (limited to 'drivers/bluetooth/hci_bcsp.h')
| -rw-r--r-- | drivers/bluetooth/hci_bcsp.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_bcsp.h b/drivers/bluetooth/hci_bcsp.h new file mode 100644 index 00000000000..a2b3bb92274 --- /dev/null +++ b/drivers/bluetooth/hci_bcsp.h @@ -0,0 +1,70 @@ +/* + BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ). + Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com> + + Based on + hci_h4.c by Maxim Krasnyansky <maxk@qualcomm.com> + ABCSP by Carl Orsborn <cjo@csr.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. +*/ + +/* + * $Id: hci_bcsp.h,v 1.2 2002/09/26 05:05:14 maxk Exp $ + */ + +#ifndef __HCI_BCSP_H__ +#define __HCI_BCSP_H__ + +#define BCSP_TXWINSIZE 4 + +#define BCSP_ACK_PKT 0x05 +#define BCSP_LE_PKT 0x06 + +struct bcsp_struct { + struct sk_buff_head unack; /* Unack'ed packets queue */ + struct sk_buff_head rel; /* Reliable packets queue */ + struct sk_buff_head unrel; /* Unreliable packets queue */ + + unsigned long rx_count; + struct sk_buff *rx_skb; + u8 rxseq_txack; /* rxseq == txack. */ + u8 rxack; /* Last packet sent by us that the peer ack'ed */ + struct timer_list tbcsp; + + enum { + BCSP_W4_PKT_DELIMITER, + BCSP_W4_PKT_START, + BCSP_W4_BCSP_HDR, + BCSP_W4_DATA, + BCSP_W4_CRC + } rx_state; + + enum { + BCSP_ESCSTATE_NOESC, + BCSP_ESCSTATE_ESC + } rx_esc_state; + + u16 message_crc; + u8 txack_req; /* Do we need to send ack's to the peer? */ + + /* Reliable packet sequence number - used to assign seq to each rel pkt. */ + u8 msgq_txseq; +}; + +#endif /* __HCI_BCSP_H__ */ |