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https://github.com/bluekitchen/btstack.git
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esp32: implement btstack_tlv.h interface on top of esp-idf nvs storage
This commit is contained in:
Matthias Ringwald
parent
01dc6e35bf
commit
6bbd991acf
160
port/esp32/template/components/btstack/btstack_tlv_esp32.c
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160
port/esp32/template/components/btstack/btstack_tlv_esp32.c
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/*
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* Copyright (C) 2017 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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*
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* THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD 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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*/
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#define __BTSTACK_FILE__ "btstack_tlv_esp32.c"
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#include "btstack_tlv.h"
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#include "btstack_util.h"
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#include "btstack_debug.h"
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#include "esp_system.h"
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#include "nvs_flash.h"
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#include "nvs.h"
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#include <string.h>
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static nvs_handle the_nvs_handle;
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static int nvs_active;
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// @param buffer char array of size 9
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static void key_for_tag(uint32_t tag, char * key_buffer){
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int i;
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for (i=0;i<8;i++){
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key_buffer[i] = char_for_nibble( (tag >> (4*(7-i))) & 0x0f);
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}
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key_buffer[i] = 0;
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log_info("tag %08x -> %s", tag, key_buffer);
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}
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/**
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* Get Value for Tag
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* @param tag
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* @param buffer
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* @param buffer_size
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* @returns size of value
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*/
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static int btstack_tlv_esp32_get_tag(void * context, uint32_t tag, uint8_t * buffer, uint32_t buffer_size){
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if (!nvs_active) return 0;
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char key_buffer[9];
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key_for_tag(tag, key_buffer);
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log_info("read tag %s", key_buffer);
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size_t size = 0;
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esp_err_t err = nvs_get_blob(the_nvs_handle, key_buffer, NULL, &size);
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switch (err) {
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case ESP_OK:
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if (size > buffer_size){
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log_error("buffer_size %u < value size %u", buffer_size, size);
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return 0;
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}
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nvs_get_blob(the_nvs_handle, key_buffer, buffer, &size);
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return size;
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case ESP_ERR_NVS_NOT_FOUND:
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break;
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default :
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log_error("Error (0x%04x) reading %s!\n", err, key_buffer);
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break;
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}
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return 0;
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}
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/**
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* Store Tag
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* @param tag
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* @param data
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* @param data_size
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*/
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static void btstack_tlv_esp32_store_tag(void * context, uint32_t tag, const uint8_t * data, uint32_t data_size){
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if (!nvs_active) return;
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char key_buffer[9];
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key_for_tag(tag, key_buffer);
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log_info("store tag %s", key_buffer);
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esp_err_t err = nvs_set_blob(the_nvs_handle, key_buffer, data, data_size);
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if (err != ESP_OK){
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printf("Error (0x%04x) nvs_set_blob %s!\n", err, key_buffer);
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return;
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}
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err = nvs_commit(the_nvs_handle);
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if (err != ESP_OK){
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printf("Error (0x%04x) nvs_commit %s!\n", err, key_buffer);
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}
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}
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/**
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* Delete Tag
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* @param tag
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*/
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static void btstack_tlv_esp32_delete_tag(void * context, uint32_t tag){
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if (!nvs_active) return;
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char key_buffer[9];
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key_for_tag(tag, key_buffer);
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log_info("delete tag %s", key_buffer);
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esp_err_t err = nvs_erase_key(the_nvs_handle, key_buffer);
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switch (err) {
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case ESP_OK:
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case ESP_ERR_NVS_NOT_FOUND:
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break;
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break;
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default :
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log_error("Error (0x%04x) deleting reading %s!\n", err, key_buffer);
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break;
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}
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}
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static const btstack_tlv_t btstack_tlv_esp32 = {
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/* int (*get_tag)(..); */ &btstack_tlv_esp32_get_tag,
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/* void (*store_tag)(..); */ &btstack_tlv_esp32_store_tag,
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/* void (*delete_tag)(v..); */ &btstack_tlv_esp32_delete_tag,
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};
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/**
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* Init Tag Length Value Store
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*/
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const btstack_tlv_t * btstack_tlv_esp32_get_instance(void){
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// Initialize NVS
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esp_err_t err = nvs_flash_init();
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if (err == ESP_ERR_NVS_NO_FREE_PAGES) {
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log_info("Error (0x%04x) init flash", err);
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// NVS partition was truncated and needs to be erased
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// Retry nvs_flash_init
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ESP_ERROR_CHECK(nvs_flash_erase());
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err = nvs_flash_init();
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}
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ESP_ERROR_CHECK( err );
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err = nvs_open("BTstack", NVS_READWRITE, &the_nvs_handle);
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if (err == ESP_OK) {
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nvs_active = 1;
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} else {
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log_info("Error (0x%04x) open flash 'BTstack' section", err);
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nvs_active = 0;
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}
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return &btstack_tlv_esp32;
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}
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@ -0,0 +1,56 @@
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/*
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* Copyright (C) 2017 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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||||
* 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
|
||||
* 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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*
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* THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD 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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*/
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/*
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* btstack_tlv_esp32.h
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*
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* Implementation of BTstack's Tag Value Length Persistent Storage using similar esp-idf
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*/
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#ifndef __BTSTACK_TLV_ESP32_H
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#define __BTSTACK_TLV_ESP32_H
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#include <stdint.h>
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#include "btstack_tlv.h"
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#if defined __cplusplus
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extern "C" {
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#endif
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/**
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* Init Tag Length Value Store
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*/
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const btstack_tlv_t * btstack_tlv_esp32_get_instance(void);
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#if defined __cplusplus
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}
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#endif
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#endif // __BTSTACK_TLV_ESP32_H
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@ -48,7 +48,10 @@
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#include "btstack_run_loop.h"
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#include "btstack_run_loop_freertos.h"
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#include "btstack_ring_buffer.h"
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//#include "classic/btstack_link_key_db.h"
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#include "btstack_tlv.h"
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#include "btstack_tlv_esp32.h"
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#include "classic/btstack_link_key_db.h"
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#include "classic/btstack_link_key_db_tlv.h"
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#include "hci.h"
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#include "hci_dump.h"
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#include "bt.h"
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@ -315,7 +318,11 @@ int app_main(void){
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// init HCI
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hci_init(transport_get_instance(), NULL);
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hci_set_link_key_db(btstack_link_key_db_memory_instance()); // @TODO
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// setup link key deb using esp32 btstack_tlv instance
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const btstack_tlv_t * btstack_tlv_impl = btstack_tlv_esp32_get_instance();
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const btstack_link_key_db_t * btstack_link_key_db = btstack_link_key_db_tlv_get_instance(btstack_tlv_impl, NULL);
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hci_set_link_key_db(btstack_link_key_db);
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// inform about BTstack state
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hci_event_callback_registration.callback = &packet_handler;
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