Norimasa Okamoto / Mbed 2 deprecated F401RE-BTstack_example

BTstack for Nucleo F401RE/FRDM-KL46Z example program

Dependencies:   F401RE-USBHost mbed

The usage is the same as KL46Z-BTstack_example.
使い方はKL46Z-BTstack_exampleと同じです。
/media/uploads/va009039/f401re-btstack.jpg

BTstack/l2cap_signaling.c@0:a05a07cd6fdf, 2014-06-09 (annotated)

Committer:
va009039
Date:
Mon Jun 09 09:03:25 2014 +0000
Revision:
0:a05a07cd6fdf
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:a05a07cd6fdf 1 /*
va009039 0:a05a07cd6fdf 2 * Copyright (C) 2009-2012 by Matthias Ringwald
va009039 0:a05a07cd6fdf 3 *
va009039 0:a05a07cd6fdf 4 * Redistribution and use in source and binary forms, with or without
va009039 0:a05a07cd6fdf 5 * modification, are permitted provided that the following conditions
va009039 0:a05a07cd6fdf 6 * are met:
va009039 0:a05a07cd6fdf 7 *
va009039 0:a05a07cd6fdf 8 * 1. Redistributions of source code must retain the above copyright
va009039 0:a05a07cd6fdf 9 * notice, this list of conditions and the following disclaimer.
va009039 0:a05a07cd6fdf 10 * 2. Redistributions in binary form must reproduce the above copyright
va009039 0:a05a07cd6fdf 11 * notice, this list of conditions and the following disclaimer in the
va009039 0:a05a07cd6fdf 12 * documentation and/or other materials provided with the distribution.
va009039 0:a05a07cd6fdf 13 * 3. Neither the name of the copyright holders nor the names of
va009039 0:a05a07cd6fdf 14 * contributors may be used to endorse or promote products derived
va009039 0:a05a07cd6fdf 15 * from this software without specific prior written permission.
va009039 0:a05a07cd6fdf 16 * 4. Any redistribution, use, or modification is done solely for
va009039 0:a05a07cd6fdf 17 * personal benefit and not for any commercial purpose or for
va009039 0:a05a07cd6fdf 18 * monetary gain.
va009039 0:a05a07cd6fdf 19 *
va009039 0:a05a07cd6fdf 20 * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
va009039 0:a05a07cd6fdf 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
va009039 0:a05a07cd6fdf 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
va009039 0:a05a07cd6fdf 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
va009039 0:a05a07cd6fdf 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
va009039 0:a05a07cd6fdf 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
va009039 0:a05a07cd6fdf 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
va009039 0:a05a07cd6fdf 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
va009039 0:a05a07cd6fdf 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
va009039 0:a05a07cd6fdf 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
va009039 0:a05a07cd6fdf 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
va009039 0:a05a07cd6fdf 31 * SUCH DAMAGE.
va009039 0:a05a07cd6fdf 32 *
va009039 0:a05a07cd6fdf 33 * Please inquire about commercial licensing options at btstack@ringwald.ch
va009039 0:a05a07cd6fdf 34 *
va009039 0:a05a07cd6fdf 35 */
va009039 0:a05a07cd6fdf 36
va009039 0:a05a07cd6fdf 37 /*
va009039 0:a05a07cd6fdf 38 * l2cap_signaling.h
va009039 0:a05a07cd6fdf 39 *
va009039 0:a05a07cd6fdf 40 * Created by Matthias Ringwald on 7/23/09.
va009039 0:a05a07cd6fdf 41 */
va009039 0:a05a07cd6fdf 42
va009039 0:a05a07cd6fdf 43 #include "l2cap_signaling.h"
va009039 0:a05a07cd6fdf 44
va009039 0:a05a07cd6fdf 45 #include <string.h>
va009039 0:a05a07cd6fdf 46
va009039 0:a05a07cd6fdf 47 static char *l2cap_signaling_commands_format[] = {
va009039 0:a05a07cd6fdf 48 "D", // 0x01 command reject: reason {cmd not understood (0), sig MTU exceeded (2:max sig MTU), invalid CID (4:req CID)}, data len, data
va009039 0:a05a07cd6fdf 49 "22", // 0x02 connection request: PSM, Source CID
va009039 0:a05a07cd6fdf 50 "2222", // 0x03 connection response: Dest CID, Source CID, Result, Status
va009039 0:a05a07cd6fdf 51 "22D", // 0x04 config request: Dest CID, Flags, Configuration options
va009039 0:a05a07cd6fdf 52 "222D", // 0x05 config response: Source CID, Flags, Result, Configuration options
va009039 0:a05a07cd6fdf 53 "22", // 0x06 disconection request: Dest CID, Source CID
va009039 0:a05a07cd6fdf 54 "22", // 0x07 disconection response: Dest CID, Source CID
va009039 0:a05a07cd6fdf 55 "D", // 0x08 echo request: Data
va009039 0:a05a07cd6fdf 56 "D", // 0x09 echo response: Data
va009039 0:a05a07cd6fdf 57 "2", // 0x0a information request: InfoType {1=Connectionless MTU, 2=Extended features supported}
va009039 0:a05a07cd6fdf 58 "22D", // 0x0b information response: InfoType, Result, Data
va009039 0:a05a07cd6fdf 59 };
va009039 0:a05a07cd6fdf 60
va009039 0:a05a07cd6fdf 61 uint8_t sig_seq_nr = 0xff;
va009039 0:a05a07cd6fdf 62 uint16_t source_cid = 0x40;
va009039 0:a05a07cd6fdf 63
va009039 0:a05a07cd6fdf 64 uint8_t l2cap_next_sig_id(void){
va009039 0:a05a07cd6fdf 65 if (sig_seq_nr == 0xff) {
va009039 0:a05a07cd6fdf 66 sig_seq_nr = 1;
va009039 0:a05a07cd6fdf 67 } else {
va009039 0:a05a07cd6fdf 68 sig_seq_nr++;
va009039 0:a05a07cd6fdf 69 }
va009039 0:a05a07cd6fdf 70 return sig_seq_nr;
va009039 0:a05a07cd6fdf 71 }
va009039 0:a05a07cd6fdf 72
va009039 0:a05a07cd6fdf 73 uint16_t l2cap_next_local_cid(void){
va009039 0:a05a07cd6fdf 74 return source_cid++;
va009039 0:a05a07cd6fdf 75 }
va009039 0:a05a07cd6fdf 76
va009039 0:a05a07cd6fdf 77 uint16_t l2cap_create_signaling_internal(uint8_t * acl_buffer, hci_con_handle_t handle, L2CAP_SIGNALING_COMMANDS cmd, uint8_t identifier, va_list argptr){
va009039 0:a05a07cd6fdf 78
va009039 0:a05a07cd6fdf 79 // 0 - Connection handle : PB=10 : BC=00
va009039 0:a05a07cd6fdf 80 bt_store_16(acl_buffer, 0, handle | (2 << 12) | (0 << 14));
va009039 0:a05a07cd6fdf 81 // 6 - L2CAP channel = 1
va009039 0:a05a07cd6fdf 82 bt_store_16(acl_buffer, 6, 1);
va009039 0:a05a07cd6fdf 83 // 8 - Code
va009039 0:a05a07cd6fdf 84 acl_buffer[8] = cmd;
va009039 0:a05a07cd6fdf 85 // 9 - id (!= 0 sequentially)
va009039 0:a05a07cd6fdf 86 acl_buffer[9] = identifier;
va009039 0:a05a07cd6fdf 87
va009039 0:a05a07cd6fdf 88 // 12 - L2CAP signaling parameters
va009039 0:a05a07cd6fdf 89 uint16_t pos = 12;
va009039 0:a05a07cd6fdf 90 const char *format = l2cap_signaling_commands_format[cmd-1];
va009039 0:a05a07cd6fdf 91 uint16_t word;
va009039 0:a05a07cd6fdf 92 uint8_t * ptr;
va009039 0:a05a07cd6fdf 93 while (*format) {
va009039 0:a05a07cd6fdf 94 switch(*format) {
va009039 0:a05a07cd6fdf 95 case '1': // 8 bit value
va009039 0:a05a07cd6fdf 96 case '2': // 16 bit value
va009039 0:a05a07cd6fdf 97 word = va_arg(argptr, int);
va009039 0:a05a07cd6fdf 98 // minimal va_arg is int: 2 bytes on 8+16 bit CPUs
va009039 0:a05a07cd6fdf 99 acl_buffer[pos++] = word & 0xff;
va009039 0:a05a07cd6fdf 100 if (*format == '2') {
va009039 0:a05a07cd6fdf 101 acl_buffer[pos++] = word >> 8;
va009039 0:a05a07cd6fdf 102 }
va009039 0:a05a07cd6fdf 103 break;
va009039 0:a05a07cd6fdf 104 case 'D': // variable data. passed: len, ptr
va009039 0:a05a07cd6fdf 105 word = va_arg(argptr, int);
va009039 0:a05a07cd6fdf 106 ptr = va_arg(argptr, uint8_t *);
va009039 0:a05a07cd6fdf 107 memcpy(&acl_buffer[pos], ptr, word);
va009039 0:a05a07cd6fdf 108 pos += word;
va009039 0:a05a07cd6fdf 109 break;
va009039 0:a05a07cd6fdf 110 default:
va009039 0:a05a07cd6fdf 111 break;
va009039 0:a05a07cd6fdf 112 }
va009039 0:a05a07cd6fdf 113 format++;
va009039 0:a05a07cd6fdf 114 };
va009039 0:a05a07cd6fdf 115 va_end(argptr);
va009039 0:a05a07cd6fdf 116
va009039 0:a05a07cd6fdf 117 // Fill in various length fields: it's the number of bytes following for ACL lenght and l2cap parameter length
va009039 0:a05a07cd6fdf 118 // - the l2cap payload length is counted after the following channel id (only payload)
va009039 0:a05a07cd6fdf 119
va009039 0:a05a07cd6fdf 120 // 2 - ACL length
va009039 0:a05a07cd6fdf 121 bt_store_16(acl_buffer, 2, pos - 4);
va009039 0:a05a07cd6fdf 122 // 4 - L2CAP packet length
va009039 0:a05a07cd6fdf 123 bt_store_16(acl_buffer, 4, pos - 6 - 2);
va009039 0:a05a07cd6fdf 124 // 10 - L2CAP signaling parameter length
va009039 0:a05a07cd6fdf 125 bt_store_16(acl_buffer, 10, pos - 12);
va009039 0:a05a07cd6fdf 126
va009039 0:a05a07cd6fdf 127 return pos;
va009039 0:a05a07cd6fdf 128 }