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1/* $NetBSD: bcsp.h,v 1.2 2007/10/02 05:40:10 junyoung Exp $ */
2/*
3 * Copyright (c) 2007 KIYOHARA Takashi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef _DEV_BLUETOOTH_BCSP_H_
29#define _DEV_BLUETOOTH_BCSP_H_
30
31/*
32 * BlueCore Serial Protocol definitions
33 */
34
35/*
36 * Reference to bcore-sp-012p.
37 */
38/* BCSP packet header */
39typedef struct {
40 uint8_t flags;
41#if BYTE_ORDER == BIG_ENDIAN
42 uint8_t plen1 :4; /* Payload Length (bits 0-3) */
43 uint8_t ident :4; /* Protocol Identifier */
44#else
45 uint8_t ident :4; /* Protocol Identifier */
46 uint8_t plen1 :4; /* Payload Length (bits 0-3) */
47#endif
48 uint8_t plen2; /* Payload Length (bits 4-11) */
49 uint8_t csum; /* Checksum */
50 u_char payload[0];
51} __packed bcsp_hdr_t;
52
53#define BCSP_FLAGS_SEQ_SHIFT 0
54#define BCSP_FLAGS_SEQ_MASK 0x07
55#define BCSP_FLAGS_SEQ(n) \
56 (((n) & BCSP_FLAGS_SEQ_MASK) >> BCSP_FLAGS_SEQ_SHIFT)
57#define BCSP_FLAGS_ACK_SHIFT 3
58#define BCSP_FLAGS_ACK_MASK 0x38
59#define BCSP_FLAGS_ACK(n) \
60 (((n) & BCSP_FLAGS_ACK_MASK) >> BCSP_FLAGS_ACK_SHIFT)
61#define BCSP_FLAGS_CRC_PRESENT 0x40
62#define BCSP_FLAGS_PROTOCOL_TYPE 0x80
63#define BCSP_FLAGS_PROTOCOL_REL 0x80
64
65#define BCSP_SET_PLEN(hdrp, n) \
66 do { \
67 (hdrp)->plen1 = ((n) & 0x00f); \
68 (hdrp)->plen2 = ((n) >> 4); \
69 } while (0)
70#define BCSP_GET_PLEN(hdrp) ((hdrp)->plen1 | ((hdrp)->plen2 << 4))
71
72#define BCSP_GET_CSUM(hdrp) \
73 (0xff - (uint8_t)((hdrp)->flags + ((hdrp)->plen1 << 4) + \
74 (hdrp)->ident + (hdrp)->plen2))
75#define BCSP_SET_CSUM(hdrp) ((hdrp)->csum = BCSP_GET_CSUM(hdrp))
76
77
78#define BCSP_IDENT_ACKPKT 0 /* Used by MUX Layer */
79/* Other Protocol Identifier values described to bcore-sp-007P */
80
81
82/* definitions of SLIP Layer */
83#define BCSP_SLIP_PKTSTART 0xc0
84#define BCSP_SLIP_PKTEND BCSP_SLIP_PKTSTART
85#define BCSP_SLIP_ESCAPE 0xdb
86#define BCSP_SLIP_ESCAPE_PKTEND 0xdc
87#define BCSP_SLIP_ESCAPE_ESCAPE 0xdd
88
89
90/* definitions of Sequencing Layer */
91#define BCSP_SEQ_TX_TIMEOUT (hz / 4) /* 250 msec */
92#define BCSP_SEQ_TX_WINSIZE 4
93#define BCSP_SEQ_TX_RETRY_LIMIT 20
94
95
96/*
97 * Reference to bcore-sp-007p.
98 * Channel Allocation
99 */
100#define BCSP_CHANNEL_LE 1 /* defined in [BCSPLE] */
101#define BCSP_CHANNEL_BCCMD 2 /* defined in [BCCMD] */
102#define BCSP_CHANNEL_HQ 3 /* defined in [HQ] */
103#define BCSP_CHANNEL_DEVMGT 4 /* defined by BlueStack */
104#define BCSP_CHANNEL_HCI_CMDEVT 5 /* HCI Command and Event */
105#define BCSP_CHANNEL_HCI_ACL 6 /* HCI ACL data */
106#define BCSP_CHANNEL_HCI_SCO 7 /* HCI SCO data */
107#define BCSP_CHANNEL_L2CAP 8 /* defined by BlueStack */
108#define BCSP_CHANNEL_RFCOMM 9 /* defined by BlueStack */
109#define BCSP_CHANNEL_SDP 10 /* defined by BlueStack */
110
111#define BCSP_CHANNEL_DFU 12 /* defined in [DFUPROT] */
112#define BCSP_CHANNEL_VM 13 /* Virtual Machine */
113
114
115/*
116 * Reference to bcore-sp-008p ??
117 * Link Establishment Protocol
118 */
119typedef enum {
120 le_state_shy,
121 le_state_curious,
122 le_state_garrulous
123} bcsp_le_state_t;
124
125#define BCSP_LE_SYNC { 0xda, 0xdc, 0xed, 0xed }
126#define BCSP_LE_SYNCRESP { 0xac, 0xaf, 0xef, 0xee }
127#define BCSP_LE_CONF { 0xad, 0xef, 0xac, 0xed }
128#define BCSP_LE_CONFRESP { 0xde, 0xad, 0xd0, 0xd0 }
129
130#define BCSP_LE_TSHY_TIMEOUT hz /* XXXX: 1sec ? */
131#define BCSP_LE_TCONF_TIMEOUT hz /* XXXX: 1sec ? */
132
133#endif /* !_DEV_BLUETOOTH_BCSP_H_ */