[FL-2230] SubGhz: protocol API refactoring (#969)

* SubGhz: protocols library refactoring
* SubGhz: new architecture and refactoring
* SubGhz: simplify protocol structure, remove unused types
* SubGhz: rename Subghz to SubGhz
* SubGhz: add environment concept

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

lib/subghz/types.h

@@ -0,0 +1,99 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#include <lib/flipper_format/flipper_format.h>
+#include <lib/toolbox/level_duration.h>
+
+#include "environment.h"
+#include <furi.h>
+#include <furi_hal.h>
+
+#define SUBGHZ_APP_FOLDER "/any/subghz"
+#define SUBGHZ_RAW_FOLDER "/ext/subghz"
+#define SUBGHZ_APP_EXTENSION ".sub"
+
+#define SUBGHZ_KEY_FILE_VERSION 1
+#define SUBGHZ_KEY_FILE_TYPE "Flipper SubGhz Key File"
+
+#define SUBGHZ_RAW_FILE_VERSION 1
+#define SUBGHZ_RAW_FILE_TYPE "Flipper SubGhz RAW File"
+
+//
+// Abstract method types
+//
+
+// Allocator and Deallocator
+typedef void* (*SubGhzAlloc)(SubGhzEnvironment* environment);
+typedef void (*SubGhzFree)(void* context);
+
+// Serialize and Deserialize
+typedef bool (*SubGhzSerialize)(
+    void* context,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset);
+typedef bool (*SubGhzDeserialize)(void* context, FlipperFormat* flipper_format);
+
+// Decoder specific
+typedef void (*SubGhzDecoderFeed)(void* decoder, bool level, uint32_t duration);
+typedef void (*SubGhzDecoderReset)(void* decoder);
+typedef uint8_t (*SubGhzGetHashData)(void* decoder);
+typedef void (*SubGhzGetString)(void* decoder, string_t output);
+
+// Encoder specific
+typedef void (*SubGhzEncoderStop)(void* encoder);
+typedef LevelDuration (*SubGhzEncoderYield)(void* context);
+
+typedef struct {
+    SubGhzAlloc alloc;
+    SubGhzFree free;
+
+    SubGhzDecoderFeed feed;
+    SubGhzDecoderReset reset;
+
+    SubGhzGetHashData get_hash_data;
+    SubGhzGetString get_string;
+    SubGhzSerialize serialize;
+    SubGhzDeserialize deserialize;
+} SubGhzProtocolDecoder;
+
+typedef struct {
+    SubGhzAlloc alloc;
+    SubGhzFree free;
+
+    SubGhzDeserialize deserialize;
+    SubGhzEncoderStop stop;
+    SubGhzEncoderYield yield;
+} SubGhzProtocolEncoder;
+
+typedef enum {
+    SubGhzProtocolTypeUnknown = 0,
+    SubGhzProtocolTypeStatic,
+    SubGhzProtocolTypeDynamic,
+    SubGhzProtocolTypeRAW,
+} SubGhzProtocolType;
+
+typedef enum {
+    SubGhzProtocolFlag_RAW = (1 << 0),
+    SubGhzProtocolFlag_Decodable = (1 << 1),
+    SubGhzProtocolFlag_315 = (1 << 2),
+    SubGhzProtocolFlag_433 = (1 << 3),
+    SubGhzProtocolFlag_868 = (1 << 4),
+    SubGhzProtocolFlag_AM = (1 << 5),
+    SubGhzProtocolFlag_FM = (1 << 6),
+    SubGhzProtocolFlag_Save = (1 << 7),
+    SubGhzProtocolFlag_Load = (1 << 8),
+    SubGhzProtocolFlag_Send = (1 << 9),
+} SubGhzProtocolFlag;
+
+typedef struct {
+    const char* name;
+    SubGhzProtocolType type;
+    SubGhzProtocolFlag flag;
+
+    const SubGhzProtocolEncoder* encoder;
+    const SubGhzProtocolDecoder* decoder;
+} SubGhzProtocol;