1 /*
2 * Copyright (C) 2015 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the copyright holders nor the names of
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * 4. Any redistribution, use, or modification is done solely for
17 * personal benefit and not for any commercial purpose or for
18 * monetary gain.
19 *
20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
24 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Please inquire about commercial licensing options at
34 * [email protected]
35 *
36 */
37
38 #define BTSTACK_FILE__ "btstack_chipset_tc3566x.c"
39
40 /*
41 * btstack_chipset_tc3566x.c
42 *
43 * Adapter to use Toshiba TC3566x-based chipsets with BTstack
44 *
45 * Supports:
46 * - Set BD ADDR
47 * - Set baud rate
48 */
49
50 #include "btstack_config.h"
51 #include "btstack_chipset_tc3566x.h"
52
53 #include <stddef.h> /* NULL */
54 #include <stdio.h>
55 #include <string.h> /* memcpy */
56 #include "hci.h"
57 #include "btstack_debug.h"
58
59 // should go to some common place
60 #define OPCODE(ogf, ocf) (ocf | ogf << 10)
61
62 static const uint8_t baudrate_command[] = { 0x08, 0xfc, 0x11, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x14, 0x42, 0xff, 0x10, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
63
chipset_set_baudrate_command(uint32_t baudrate,uint8_t * hci_cmd_buffer)64 static void chipset_set_baudrate_command(uint32_t baudrate, uint8_t *hci_cmd_buffer){
65 uint16_t div1 = 0;
66 uint8_t div2 = 0;
67 switch (baudrate) {
68 case 115200:
69 div1 = 0x001A;
70 div2 = 0x60;
71 break;
72 case 230400:
73 div1 = 0x000D;
74 div2 = 0x60;
75 break;
76 case 460800:
77 div1 = 0x0005;
78 div2 = 0xA0;
79 break;
80 case 921600:
81 div1 = 0x0003;
82 div2 = 0x70;
83 break;
84 default:
85 log_error("tc3566x_baudrate_cmd baudrate %u not supported", baudrate);
86 return;
87 }
88
89 memcpy(hci_cmd_buffer, baudrate_command, sizeof(baudrate_command));
90 little_endian_store_16(hci_cmd_buffer, 13, div1);
91 hci_cmd_buffer[15] = div2;
92 }
93
chipset_set_bd_addr_command(bd_addr_t addr,uint8_t * hci_cmd_buffer)94 static void chipset_set_bd_addr_command(bd_addr_t addr, uint8_t *hci_cmd_buffer){
95 // OGF 0x04 - Informational Parameters, OCF 0x10
96 hci_cmd_buffer[0] = 0x13;
97 hci_cmd_buffer[1] = 0x10;
98 hci_cmd_buffer[2] = 0x06;
99 reverse_bd_addr(addr, &hci_cmd_buffer[3]);
100 }
101
102 static const btstack_chipset_t btstack_chipset_tc3566x = {
103 "tc3566x",
104 NULL, // chipset_init,
105 NULL, // chipset_next_command,
106 chipset_set_baudrate_command,
107 chipset_set_bd_addr_command,
108 };
109
110 // MARK: public API
btstack_chipset_tc3566x_instance(void)111 const btstack_chipset_t * btstack_chipset_tc3566x_instance(void){
112 return &btstack_chipset_tc3566x;
113 }
114