mirror of
https://github.com/sle118/squeezelite-esp32.git
synced 2025-12-06 19:47:02 +03:00
118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/*
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <stdio.h>
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#include "esp_log.h"
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#include "driver/gpio.h"
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#include <driver/i2c.h>
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#include "config.h"
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#include "accessors.h"
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#include "globdefs.h"
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static const char *TAG = "services";
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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/****************************************************************************************
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*
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*/
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esp_err_t config_i2c_set(const i2c_config_t * config, int port){
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int buffer_size=255;
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char * config_buffer=calloc(buffer_size,1);
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if(config_buffer) {
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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);
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ESP_LOGI(TAG,"Updating i2c configuration to %s",config_buffer);
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config_set_value(NVS_TYPE_STR, "i2c_config", config_buffer);
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free(config_buffer);
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}
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return ESP_OK;
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}
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/****************************************************************************************
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*
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*/
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const i2c_config_t * config_i2c_get(int * i2c_port) {
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char *nvs_item, *p;
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static i2c_config_t i2c = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = -1,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_io_num = -1,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 400000,
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};
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nvs_item = config_alloc_get(NVS_TYPE_STR, "i2c_config");
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if (nvs_item) {
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if ((p = strcasestr(nvs_item, "scl")) != NULL) i2c.scl_io_num = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(nvs_item, "sda")) != NULL) i2c.sda_io_num = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(nvs_item, "speed")) != NULL) i2c.master.clk_speed = atoi(strchr(p, '=') + 1);
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if ((p = strcasestr(nvs_item, "port")) != NULL) i2c_system_port = atoi(strchr(p, '=') + 1);
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free(nvs_item);
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}
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if(i2c_port) *i2c_port=i2c_system_port;
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return &i2c;
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}
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/****************************************************************************************
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*
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*/
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char *config_metadata_format(char *artist, char *album, char *title, int *speed, int len) {
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char *nvs_item, *string = calloc(len + 1, 1), *p;
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nvs_item = config_alloc_get(NVS_TYPE_STR, "metadata_config");
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if (nvs_item) {
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if ((p = strcasestr(nvs_item, "format")) != NULL) {
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char token[16], *q;
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int space = len;
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bool skip = false;
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p = strchr(nvs_item, '=');
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while (p++) {
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// find token and copy what's after when reaching last one
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if (sscanf(p, "%*[^%%]%%%[^%]%%", token) < 0) {
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q = strchr(p, ',');
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strncat(string, p, q ? min(q - p, space) : space);
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break;
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}
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// copy what's before token (be safe)
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if ((q = strchr(p, '%')) == NULL) break;
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// skip whatever is after a token if this token is empty
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if (!skip) {
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strncat(string, p, min(q - p, space));
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space = len - strlen(string);
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}
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// then copy token's content
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if (strcasestr(q, "artist") && artist) strncat(string, p = artist, space);
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else if (strcasestr(q, "album") && album) strncat(string, p = album, space);
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else if (strcasestr(q, "title") && title) strncat(string, p = title, space);
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space = len - strlen(string);
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// flag to skip the data following an empty field
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if (*p) skip = false;
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else skip = true;
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// advance to next separator
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p = strchr(q + 1, '%');
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}
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} else {
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string = strdup(title ? title : "");
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}
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// get optional scroll speed
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if ((p = strcasestr(nvs_item, "speed")) != NULL) sscanf(p, "%*[^=]=%d", speed);
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else *speed = 0;
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}
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return string;
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}
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