ble: profile rework (#3272)

* ble: profile rework, initial
* apps: hid: fix for pairing cleanup
* app: hid: select transport based on #define
* fixing PVS warnings
* ble: serial service: fixed uid naming
* bt service: on-demand dialog init; ble profiles: docs; battery svc: proper update
* Added shci_cmd_resp_wait/shci_cmd_resp_release impl with semaphore
* app: hid: separated transport code
* ble: fixed service init order for serial svc; moved hardfault check to ble_glue
* cli: ps: added thread prio to output, fixed heap display
* ble_glue: naming changes; separate thread for event processing;
* furi: added runtime stats; cli: added cpu% to `ps`
* cli: fixed thread time calculation
* furi: added getter for thread priority
* fixing pvs warnings
* hid profile: fixed naming
* more naming fixes
* hal: ble init small cleanup
* cleanup & draft beacon api
* f18: api sync
* apps: moved example_custom_font from debug to examples
* BLE extra beacon demo app
* naming fix
* UI fixes for demo app (wip)
* desktop, ble svc: added statusbar icon for beacon
* minor cleanup
* Minor cleanup & naming fixes
* api sync
* Removed stale header
* hal: added FURI_BLE_EXTRA_LOG for extra logging; comments & code cleanup
* naming & macro fixes
* quick fixes from review
* Eliminated stock svc_ctl
* cli: ps: removed runtime stats
* minor include fixes
* (void)
* naming fixes
* More naming fixes
* fbt: always build all libs
* fbt: explicitly globbing libs; dist: logging SDK path
* scripts: fixed lib path precedence
* hal: bt: profiles: naming changes, support for passing params to a profile; include cleanup
* ble: hid: added parameter processing for profile template
* api sync
* BLE HID: long name trim
* Removed unused check
* desktop: updated beacon status icon; ble: hid: cleaner device name management
* desktop: updated status icon

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: nminaylov <nm29719@gmail.com>

targets/f7/ble_glue/furi_ble/gatt.h

@@ -0,0 +1,110 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <ble/core/auto/ble_types.h>
+
+/* Callback signature for getting characteristic data
+ * Is called when characteristic is created to get max data length. Data ptr is NULL in this case
+ *   The result is passed to aci_gatt_add_char as "Char_Value_Length"
+ * For updates, called with a context - see flipper_gatt_characteristic_update
+ * Returns true if *data ownership is transferred to the caller and will be freed */
+typedef bool (
+    *cbBleGattCharacteristicData)(const void* context, const uint8_t** data, uint16_t* data_len);
+
+/* Used to specify the type of data for a characteristic - constant or callback-based */
+typedef enum {
+    FlipperGattCharacteristicDataFixed,
+    FlipperGattCharacteristicDataCallback,
+} BleGattCharacteristicDataType;
+
+typedef struct {
+    Char_Desc_Uuid_t uuid;
+    struct {
+        cbBleGattCharacteristicData fn;
+        const void* context;
+    } data_callback;
+    uint8_t uuid_type;
+    uint8_t max_length;
+    uint8_t security_permissions;
+    uint8_t access_permissions;
+    uint8_t gatt_evt_mask;
+    uint8_t is_variable;
+} BleGattCharacteristicDescriptorParams;
+
+/* Describes a single characteristic, providing data or callbacks to get data */
+typedef struct {
+    const char* name;
+    BleGattCharacteristicDescriptorParams* descriptor_params;
+    union {
+        struct {
+            const uint8_t* ptr;
+            uint16_t length;
+        } fixed;
+        struct {
+            cbBleGattCharacteristicData fn;
+            const void* context;
+        } callback;
+    } data;
+    Char_UUID_t uuid;
+    // Some packed bitfields to save space
+    BleGattCharacteristicDataType data_prop_type : 2;
+    uint8_t is_variable : 2;
+    uint8_t uuid_type : 2;
+    uint8_t char_properties;
+    uint8_t security_permissions;
+    uint8_t gatt_evt_mask;
+} BleGattCharacteristicParams;
+
+_Static_assert(
+    sizeof(BleGattCharacteristicParams) == 36,
+    "BleGattCharacteristicParams size must be 36 bytes");
+
+typedef struct {
+    const BleGattCharacteristicParams* characteristic;
+    uint16_t handle;
+    uint16_t descriptor_handle;
+} BleGattCharacteristicInstance;
+
+/* Initialize a characteristic instance; copies the characteristic descriptor 
+ * into the instance */
+void ble_gatt_characteristic_init(
+    uint16_t svc_handle,
+    const BleGattCharacteristicParams* char_descriptor,
+    BleGattCharacteristicInstance* char_instance);
+
+/* Delete a characteristic instance; frees the copied characteristic
+ * descriptor from the instance */
+void ble_gatt_characteristic_delete(
+    uint16_t svc_handle,
+    BleGattCharacteristicInstance* char_instance);
+
+/* Update a characteristic instance; if source==NULL, uses the data from 
+ * the characteristic:
+ *  - For fixed data, fixed.ptr is used as the source if source==NULL
+ *  - For callback-based data, collback.context is passed as the context
+ *    if source==NULL 
+ */
+bool ble_gatt_characteristic_update(
+    uint16_t svc_handle,
+    BleGattCharacteristicInstance* char_instance,
+    const void* source);
+
+bool ble_gatt_service_add(
+    uint8_t Service_UUID_Type,
+    const Service_UUID_t* Service_UUID,
+    uint8_t Service_Type,
+    uint8_t Max_Attribute_Records,
+    uint16_t* Service_Handle);
+
+bool ble_gatt_service_delete(uint16_t svc_handle);
+
+#ifdef __cplusplus
+}
+#endif