mirror of
https://github.com/bluekitchen/btstack.git
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114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*
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* Copyright (C) 2014 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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#define __BTSTACK_FILE__ "btstack_chipset_em9301.c"
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/*
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* btstack_chipset_em9301.c
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*
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* Adapter to use em9301-based chipsets with BTstack
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*
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* Allows to set public BD ADDR
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*/
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#include "btstack_config.h"
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#include "btstack_chipset_em9301.h"
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#include "btstack_debug.h"
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#include <stddef.h> /* NULL */
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#include <string.h> /* memcpy */
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#include "hci.h"
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// should go to some common place
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#define OPCODE(ogf, ocf) (ocf | ogf << 10)
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static const uint32_t baudrates[] = {
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0,
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0,
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0,
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9600,
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14400,
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19200,
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28800,
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38400,
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57600,
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76800,
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115200,
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230400,
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460800,
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921600,
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1843200,
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};
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static void chipset_set_bd_addr_command(bd_addr_t addr, uint8_t *hci_cmd_buffer){
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little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0x02));
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hci_cmd_buffer[2] = 0x06;
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reverse_bd_addr(addr, &hci_cmd_buffer[3]);
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}
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static void chipset_set_baudrate_command(uint32_t baudrate, uint8_t *hci_cmd_buffer){
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// lookup baudrates
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int i;
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int found = 0;
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for (i=0;i < sizeof(baudrates)/sizeof(uint32_t);i++){
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if (baudrates[i] == baudrate){
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found = i;
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break;
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}
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}
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if (!found){
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log_error("Baudrate %u not found in table", baudrate);
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return;
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}
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little_endian_store_16(hci_cmd_buffer, 0, OPCODE(OGF_VENDOR, 0x07));
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hci_cmd_buffer[2] = 0x01;
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hci_cmd_buffer[3] = i;
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}
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static const btstack_chipset_t btstack_chipset_em9301 = {
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"EM9301",
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NULL, // chipset_init not used
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NULL, // chipset_next_command not used
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chipset_set_baudrate_command,
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chipset_set_bd_addr_command,
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};
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// MARK: public API
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const btstack_chipset_t * btstack_chipset_em9301_instance(void){
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return &btstack_chipset_em9301;
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}
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