buttons extension + config memory leak & external allocation

components/config/config.c

@@ -69,7 +69,7 @@ void config_set_entry_changed_flag(cJSON * entry, cJSON_bool flag);
 		void * pval = config_alloc_get(nt, key);\
 		if(pval!=NULL){ *value = *(t * )pval; free(pval); return ESP_OK; }\
 		return ESP_FAIL;}
-#ifdef RECOVERY_APPLICATION
+#if RECOVERY_APPLICATION==0
 static void * malloc_fn(size_t sz){
 
 	void * ptr = heap_caps_malloc(sz, MALLOC_CAP_SPIRAM);
@@ -80,7 +80,7 @@ static void * malloc_fn(size_t sz){
 }
 static void * free_fn(void * ptr){
 	if(ptr!=NULL){
-		free(ptr);
+		heap_caps_free(ptr);
 	}
 	else {
 		ESP_LOGW(TAG,"free_fn: Cannot free null pointer!");
@@ -92,7 +92,7 @@ void init_cJSON(){
 	static cJSON_Hooks hooks;
 	// initialize cJSON hooks it uses SPIRAM memory
 	// as opposed to IRAM
-#ifndef RECOVERY_APPLICATION
+#if RECOVERY_APPLICATION==0
 	// In squeezelite mode, allocate memory from PSRAM.  Otherwise allocate from internal RAM
 	// as recovery will lock flash access when erasing FLASH or writing to OTA partition.
 	hooks.malloc_fn=&malloc_fn;
@@ -228,6 +228,8 @@ cJSON * config_set_value_safe(nvs_type_t nvs_type, const char *key, void * value
 		}
 		else {
 			ESP_LOGD(TAG, "Config not changed. ");
+			cJSON_Delete(entry);
+			entry = existing;
 		}
 	}
 	else {
@@ -697,7 +699,6 @@ esp_err_t config_set_value(nvs_type_t nvs_type, const char *key, void * value){
 		else {
 			ESP_LOGV(TAG,"config_set_value completed");
 		}
-
 	}
 	config_unlock();
 	return result;

components/services/buttons.c

@@ -41,7 +41,7 @@ static int n_buttons = 0;
 #define DEBOUNCE			50
 
 static EXT_RAM_ATTR struct button_s {
-	void *id;
+	void *client;
 	int gpio;
 	int debounce;
 	button_handler handler;
@@ -123,18 +123,18 @@ static void buttons_task(void* arg) {
 			if (event == BUTTON_RELEASED) {
 				// early release of a long-press button, send press/release
 				if (!button.shifting) {
-					(*button.handler)(button.id, BUTTON_PRESSED, press, false);		
+					(*button.handler)(button.client, BUTTON_PRESSED, press, false);		
-					(*button.handler)(button.id, BUTTON_RELEASED, press, false);		
+					(*button.handler)(button.client, BUTTON_RELEASED, press, false);		
 				}
 				// button is a copy, so need to go to real context
 				button.self->shifting = false;
 			} else if (!button.shifting) {
 				// normal long press and not shifting so don't discard
-				(*button.handler)(button.id, BUTTON_PRESSED, press, true);
+				(*button.handler)(button.client, BUTTON_PRESSED, press, true);
 			}  
 		} else {
 			// normal press/release of a button or release of a long-press button
-			if (!button.shifting) (*button.handler)(button.id, event, press, button.long_press);
+			if (!button.shifting) (*button.handler)(button.client, event, press, button.long_press);
 			// button is a copy, so need to go to real context
 			button.self->shifting = false;
 		}
@@ -151,7 +151,7 @@ void dummy_handler(void *id, button_event_e event, button_press_e press) {
 /****************************************************************************************
  * Create buttons 
  */
-void button_create(void *id, int gpio, int type, bool pull, int debounce, button_handler handler, int long_press, int shifter_gpio) { 
+void button_create(void *client, int gpio, int type, bool pull, int debounce, button_handler handler, int long_press, int shifter_gpio) { 
 	static DRAM_ATTR StaticTask_t xTaskBuffer __attribute__ ((aligned (4)));
 	static EXT_RAM_ATTR StackType_t xStack[BUTTON_STACK_SIZE] __attribute__ ((aligned (4)));
 
@@ -168,7 +168,7 @@ void button_create(void *id, int gpio, int type, bool pull, int debounce, button
 	memset(buttons + n_buttons, 0, sizeof(struct button_s));
 
 	// set mandatory parameters
-	buttons[n_buttons].id = id;
+	buttons[n_buttons].client = client;
  	buttons[n_buttons].gpio = gpio;
  	buttons[n_buttons].debounce = debounce ? debounce: DEBOUNCE;
 	buttons[n_buttons].handler = handler;
@@ -214,3 +214,53 @@ void button_create(void *id, int gpio, int type, bool pull, int debounce, button
 
 	n_buttons++;
 }	
+
+/****************************************************************************************
+ * Get stored id
+ */
+ void button_get_client(int gpio) {
+	 for (int i = 0; i < n_buttons; i++) {
+		 if (buttons[i].gpio == gpio) return buttons[i].client;
+	 }
+	 return NULL;
+ }
+
+/****************************************************************************************
+ * Update buttons 
+ */
+void *button_remap(void *client, int gpio, button_handler handler, int long_press, int shifter_gpio) { 
+	int i;
+	struct button_s *button = NULL;
+	void *prev_client;
+	
+	ESP_LOGI(TAG, "remapping GPIO %u, long press %u shifter %u", gpio, long_press, shifter_gpio);
+
+	// find button
+	for (i = 0; i < n_buttons; i++) {
+		if (buttons[i].gpio == gpio) {
+			button = buttons + i;
+			break;
+		}	
+	}	
+	
+	// huh
+	if (!button) return NULL;	
+	
+	prev_client = button->client;
+	button->client = client;
+ 	button->handler = handler;
+	button->long_press = long_press;
+	button->shifter_gpio = shifter_gpio;
+
+	// find our shifter	(if any)	
+	for (i = 0; shifter_gpio != -1 && i < n_buttons; i++) {
+		if (buttons[i].gpio == shifter_gpio) {
+			button->shifter = buttons + i;
+			// a shifter must have a long-press handler
+			if (!buttons[i].long_press) buttons[i].long_press = -1;
+			break;
+		}
+	}
+	
+	return prev_client;
+}

components/services/buttons.h

@@ -33,4 +33,6 @@ set shifter_gpio to -1 for no shift
 NOTE: shifter buttons *must* be created before shiftee
 */
 
-void button_create(void *id, int gpio, int type, bool pull, int debounce, button_handler handler, int long_press, int shifter_gpio);
+void button_create(void *client, int gpio, int type, bool pull, int debounce, button_handler handler, int long_press, int shifter_gpio);
+void *button_remap(void *client, int gpio, button_handler handler, int long_press, int shifter_gpio);
+void button_get_client(int gpio);

components/services/services.c

@@ -40,6 +40,7 @@ void services_init(void) {
 		if ((p = strcasestr(nvs_item, "sda")) != NULL) sda = atoi(strchr(p, '=') + 1);
 		if ((p = strcasestr(nvs_item, "speed")) != NULL) i2c_speed = atoi(strchr(p, '=') + 1);
 		if ((p = strcasestr(nvs_item, "port")) != NULL) i2c_system_port = atoi(strchr(p, '=') + 1);
+		free(nvs_item);
 	}
 	
 #ifdef CONFIG_SQUEEZEAMP

plugin/repo.xml

@@ -7,7 +7,7 @@
       <sha>799ae4860f9c009ac25c2ec35eb4070c5f474659</sha>
       <email>philippe_44@outlook.com</email>
       <desc lang="EN">SqueezeESP32 additional player id (100)</desc>
-      <url>http://github.com/sle118/squeezelite-esp32/raw/master/plugin/SqueezeESP32/SqueezeESP32.zip</url>
+      <url>http://github.com/sle118/squeezelite-esp32/raw/master/plugin/SqueezeESP32.zip</url>
       <title lang="EN">SqueezeESP32</title>
     </plugin>
   </plugins>