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 #define BTSTACK_FILE__ "btstack_chipset_stlc2500d.c" 39 40 /* 41 * btstack_chipset_stlc2500d.c 42 * 43 * Adapter to use stlc2500d-based chipsets with BTstack 44 * 45 */ 46 47 #include "btstack_config.h" 48 #include "btstack_chipset_stlc2500d.h" 49 50 #include <stddef.h> /* NULL */ 51 #include <stdio.h> 52 #include <string.h> /* memcpy */ 53 #include "hci.h" 54 #include "btstack_debug.h" 55 56 // should go to some common place 57 #define OPCODE(ogf, ocf) (ocf | ogf << 10) 58 59 static void chipset_set_baudrate_command(uint32_t baudrate, uint8_t *hci_cmd_buffer){ 60 // map baud rate to predefined settings 61 int preset = 0; 62 switch (baudrate){ 63 case 57600: 64 preset = 0x0e; 65 break; 66 case 115200: 67 preset = 0x10; 68 break; 69 case 230400: 70 preset = 0x12; 71 break; 72 case 460800: 73 preset = 0x13; 74 break; 75 case 921600: 76 preset = 0x14; 77 break; 78 case 1843200: 79 preset = 0x16; 80 break; 81 case 2000000: 82 preset = 0x19; 83 break; 84 case 3000000: 85 preset = 0x1b; 86 break; 87 case 4000000: 88 preset = 0x1f; 89 break; 90 default: 91 log_error("stlc2500d_baudrate_cmd baudrate %u not supported", baudrate); 92 return; 93 } 94 little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0xfc)); 95 hci_cmd_buffer[2] = 0x01; 96 hci_cmd_buffer[3] = preset; 97 } 98 99 static void chipset_set_bd_addr_command(bd_addr_t addr, uint8_t *hci_cmd_buffer){ 100 little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0x22)); 101 hci_cmd_buffer[2] = 0x08; 102 hci_cmd_buffer[3] = 254; 103 hci_cmd_buffer[4] = 0x06; 104 reverse_bd_addr(addr, &hci_cmd_buffer[5]); 105 } 106 107 static const btstack_chipset_t btstack_chipset_stlc2500d = { 108 "BCM", 109 NULL, // chipset_init, 110 NULL, // chipset_next_command, 111 chipset_set_baudrate_command, 112 chipset_set_bd_addr_command, 113 }; 114 115 // MARK: public API 116 const btstack_chipset_t * btstack_chipset_stlc2500d_instance(void){ 117 return &btstack_chipset_stlc2500d; 118 } 119