OVMS3-idf/examples/bluetooth/controller_hci_uart/main/controller_hci_uart_demo.c
Sagar Bijwe 1df85e0039 nvs_flash: Version compatibility check for nvs storage
This change adds a check for compatibility between the nvs version
found on nvs flash and the one assumed by running code during nvs
initialization. Any mismatch is reported to the user using new error
code ESP_ERR_NVS_NEW_VERSION_FOUND.
2018-08-05 00:00:56 +00:00

64 lines
1.8 KiB
C

/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdio.h>
#include <string.h>
#include "nvs_flash.h"
#include "esp_bt.h"
#include "driver/uart.h"
#include "esp_log.h"
static const char *tag = "CONTROLLER_UART_HCI";
static void uart_gpio_reset(void)
{
#if CONFIG_BT_HCI_UART_NO == 1
periph_module_enable(PERIPH_UART1_MODULE);
#elif CONFIG_BT_HCI_UART_NO == 2
periph_module_enable(PERIPH_UART2_MODULE);
#endif
periph_module_enable(PERIPH_UHCI0_MODULE);
#ifdef CONFIG_BT_HCI_UART_NO
ESP_LOGI(tag, "HCI UART%d Pin select: TX 5, RX, 18, CTS 23, RTS 19", CONFIG_BT_HCI_UART_NO);
uart_set_pin(CONFIG_BT_HCI_UART_NO, 5, 18, 19, 23);
#endif
}
void app_main()
{
esp_err_t ret;
/* Initialize NVS — it is used to store PHY calibration data */
ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
/* As the UART1/2 pin conflict with flash pin, so do matrix of the signal and pin */
uart_gpio_reset();
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret != ESP_OK) {
ESP_LOGE(tag, "Bluetooth Controller initialize failed: %s", esp_err_to_name(ret));
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
if (ret != ESP_OK) {
ESP_LOGE(tag, "Bluetooth Controller initialize failed: %s", esp_err_to_name(ret));
return;
}
}