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/* $NetBSD: bcsp.h,v 1.2 2007/10/02 05:40:10 junyoung Exp $ */
/*
* Copyright (c) 2007 KIYOHARA Takashi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_BLUETOOTH_BCSP_H_
#define _DEV_BLUETOOTH_BCSP_H_
/*
* BlueCore Serial Protocol definitions
*/
/*
* Reference to bcore-sp-012p.
*/
/* BCSP packet header */
typedef struct {
uint8_t flags;
#if BYTE_ORDER == BIG_ENDIAN
uint8_t plen1 :4; /* Payload Length (bits 0-3) */
uint8_t ident :4; /* Protocol Identifier */
#else
uint8_t ident :4; /* Protocol Identifier */
uint8_t plen1 :4; /* Payload Length (bits 0-3) */
#endif
uint8_t plen2; /* Payload Length (bits 4-11) */
uint8_t csum; /* Checksum */
u_char payload[0];
} __packed bcsp_hdr_t;
#define BCSP_FLAGS_SEQ_SHIFT 0
#define BCSP_FLAGS_SEQ_MASK 0x07
#define BCSP_FLAGS_SEQ(n) \
(((n) & BCSP_FLAGS_SEQ_MASK) >> BCSP_FLAGS_SEQ_SHIFT)
#define BCSP_FLAGS_ACK_SHIFT 3
#define BCSP_FLAGS_ACK_MASK 0x38
#define BCSP_FLAGS_ACK(n) \
(((n) & BCSP_FLAGS_ACK_MASK) >> BCSP_FLAGS_ACK_SHIFT)
#define BCSP_FLAGS_CRC_PRESENT 0x40
#define BCSP_FLAGS_PROTOCOL_TYPE 0x80
#define BCSP_FLAGS_PROTOCOL_REL 0x80
#define BCSP_SET_PLEN(hdrp, n) \
do { \
(hdrp)->plen1 = ((n) & 0x00f); \
(hdrp)->plen2 = ((n) >> 4); \
} while (0)
#define BCSP_GET_PLEN(hdrp) ((hdrp)->plen1 | ((hdrp)->plen2 << 4))
#define BCSP_GET_CSUM(hdrp) \
(0xff - (uint8_t)((hdrp)->flags + ((hdrp)->plen1 << 4) + \
(hdrp)->ident + (hdrp)->plen2))
#define BCSP_SET_CSUM(hdrp) ((hdrp)->csum = BCSP_GET_CSUM(hdrp))
#define BCSP_IDENT_ACKPKT 0 /* Used by MUX Layer */
/* Other Protocol Identifier values described to bcore-sp-007P */
/* definitions of SLIP Layer */
#define BCSP_SLIP_PKTSTART 0xc0
#define BCSP_SLIP_PKTEND BCSP_SLIP_PKTSTART
#define BCSP_SLIP_ESCAPE 0xdb
#define BCSP_SLIP_ESCAPE_PKTEND 0xdc
#define BCSP_SLIP_ESCAPE_ESCAPE 0xdd
/* definitions of Sequencing Layer */
#define BCSP_SEQ_TX_TIMEOUT (hz / 4) /* 250 msec */
#define BCSP_SEQ_TX_WINSIZE 4
#define BCSP_SEQ_TX_RETRY_LIMIT 20
/*
* Reference to bcore-sp-007p.
* Channel Allocation
*/
#define BCSP_CHANNEL_LE 1 /* defined in [BCSPLE] */
#define BCSP_CHANNEL_BCCMD 2 /* defined in [BCCMD] */
#define BCSP_CHANNEL_HQ 3 /* defined in [HQ] */
#define BCSP_CHANNEL_DEVMGT 4 /* defined by BlueStack */
#define BCSP_CHANNEL_HCI_CMDEVT 5 /* HCI Command and Event */
#define BCSP_CHANNEL_HCI_ACL 6 /* HCI ACL data */
#define BCSP_CHANNEL_HCI_SCO 7 /* HCI SCO data */
#define BCSP_CHANNEL_L2CAP 8 /* defined by BlueStack */
#define BCSP_CHANNEL_RFCOMM 9 /* defined by BlueStack */
#define BCSP_CHANNEL_SDP 10 /* defined by BlueStack */
#define BCSP_CHANNEL_DFU 12 /* defined in [DFUPROT] */
#define BCSP_CHANNEL_VM 13 /* Virtual Machine */
/*
* Reference to bcore-sp-008p ??
* Link Establishment Protocol
*/
typedef enum {
le_state_shy,
le_state_curious,
le_state_garrulous
} bcsp_le_state_t;
#define BCSP_LE_SYNC { 0xda, 0xdc, 0xed, 0xed }
#define BCSP_LE_SYNCRESP { 0xac, 0xaf, 0xef, 0xee }
#define BCSP_LE_CONF { 0xad, 0xef, 0xac, 0xed }
#define BCSP_LE_CONFRESP { 0xde, 0xad, 0xd0, 0xd0 }
#define BCSP_LE_TSHY_TIMEOUT hz /* XXXX: 1sec ? */
#define BCSP_LE_TCONF_TIMEOUT hz /* XXXX: 1sec ? */
#endif /* !_DEV_BLUETOOTH_BCSP_H_ */
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