mirror of
https://github.com/sle118/squeezelite-esp32.git
synced 2025-12-06 19:47:02 +03:00
61 lines
1.9 KiB
C
61 lines
1.9 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 "esp_log.h"
|
|
#include "driver/gpio.h"
|
|
#include <driver/i2c.h>
|
|
#include "config.h"
|
|
#include "accessors.h"
|
|
#include "globdefs.h"
|
|
|
|
static const char *TAG = "services";
|
|
|
|
#define min(a,b) (((a) < (b)) ? (a) : (b))
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
esp_err_t config_i2c_set(const i2c_config_t * config, int port){
|
|
int buffer_size=255;
|
|
char * config_buffer=calloc(buffer_size,1);
|
|
if(config_buffer) {
|
|
snprintf(config_buffer,buffer_size,"scl=%u sda=%u speed=%u port=%u",config->scl_io_num,config->sda_io_num,config->master.clk_speed,port);
|
|
ESP_LOGI(TAG,"Updating i2c configuration to %s",config_buffer);
|
|
config_set_value(NVS_TYPE_STR, "i2c_config", config_buffer);
|
|
free(config_buffer);
|
|
}
|
|
return ESP_OK;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
const i2c_config_t * config_i2c_get(int * i2c_port) {
|
|
char *nvs_item, *p;
|
|
static i2c_config_t i2c = {
|
|
.mode = I2C_MODE_MASTER,
|
|
.sda_io_num = -1,
|
|
.sda_pullup_en = GPIO_PULLUP_ENABLE,
|
|
.scl_io_num = -1,
|
|
.scl_pullup_en = GPIO_PULLUP_ENABLE,
|
|
.master.clk_speed = 400000,
|
|
};
|
|
|
|
nvs_item = config_alloc_get(NVS_TYPE_STR, "i2c_config");
|
|
if (nvs_item) {
|
|
if ((p = strcasestr(nvs_item, "scl")) != NULL) i2c.scl_io_num = atoi(strchr(p, '=') + 1);
|
|
if ((p = strcasestr(nvs_item, "sda")) != NULL) i2c.sda_io_num = atoi(strchr(p, '=') + 1);
|
|
if ((p = strcasestr(nvs_item, "speed")) != NULL) i2c.master.clk_speed = atoi(strchr(p, '=') + 1);
|
|
if ((p = strcasestr(nvs_item, "port")) != NULL) i2c_system_port = atoi(strchr(p, '=') + 1);
|
|
free(nvs_item);
|
|
}
|
|
if(i2c_port) *i2c_port=i2c_system_port;
|
|
return &i2c;
|
|
}
|