1 /* 2 * Copyright (C) 2014 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 MATTHIAS 24 * RINGWALD 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 /* 39 * btstack_chipset_stlc2500d.c 40 * 41 * Adapter to use stlc2500d-based chipsets with BTstack 42 * 43 */ 44 45 #include "btstack_config.h" 46 #include "btstack_chipset_stlc2500d.h" 47 48 #include <stddef.h> /* NULL */ 49 #include <stdio.h> 50 #include <string.h> /* memcpy */ 51 #include "hci.h" 52 #include "btstack_debug.h" 53 54 // should go to some common place 55 #define OPCODE(ogf, ocf) (ocf | ogf << 10) 56 57 static void chipset_set_baudrate_command(uint32_t baudrate, uint8_t *hci_cmd_buffer){ 58 // map baud rate to predefined settings 59 int preset = 0; 60 switch (baudrate){ 61 case 57600: 62 preset = 0x0e; 63 break; 64 case 115200: 65 preset = 0x10; 66 break; 67 case 230400: 68 preset = 0x12; 69 break; 70 case 460800: 71 preset = 0x13; 72 break; 73 case 921600: 74 preset = 0x14; 75 break; 76 case 1843200: 77 preset = 0x16; 78 break; 79 case 2000000: 80 preset = 0x19; 81 break; 82 case 3000000: 83 preset = 0x1b; 84 break; 85 case 4000000: 86 preset = 0x1f; 87 break; 88 default: 89 log_error("stlc2500d_baudrate_cmd baudrate %u not supported", baudrate); 90 return; 91 } 92 little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0xfc)); 93 hci_cmd_buffer[2] = 0x01; 94 hci_cmd_buffer[3] = preset; 95 } 96 97 static void chipset_set_bd_addr_command(bd_addr_t addr, uint8_t *hci_cmd_buffer){ 98 little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0x22)); 99 hci_cmd_buffer[2] = 0x08; 100 hci_cmd_buffer[3] = 254; 101 hci_cmd_buffer[4] = 0x06; 102 reverse_bd_addr(addr, &hci_cmd_buffer[5]); 103 } 104 105 static const btstack_chipset_t btstack_chipset_stlc2500d = { 106 "BCM", 107 NULL, // chipset_init, 108 NULL, // chipset_next_command, 109 chipset_set_baudrate_command, 110 chipset_set_bd_addr_command, 111 }; 112 113 // MARK: public API 114 const btstack_chipset_t * btstack_chipset_stlc2500d_instance(void){ 115 return &btstack_chipset_stlc2500d; 116 } 117