Added external CC1101 support

applications/main/subghz/helpers/subghz_frequency_analyzer_worker.c

@@ -36,13 +36,13 @@ struct SubGhzFrequencyAnalyzerWorker {
 };
 
 static void subghz_frequency_analyzer_worker_load_registers(const uint8_t data[][2]) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     size_t i = 0;
     while(data[i][0]) {
-        cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, data[i][0], data[i][1]);
+        cc1101_write_reg(furi_hal_subghz.spi_bus_handle, data[i][0], data[i][1]);
         i++;
     }
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 // running average with adaptive coefficient
@@ -80,26 +80,26 @@ static int32_t subghz_frequency_analyzer_worker_thread(void* context) {
     //Start CC1101
     furi_hal_subghz_reset();
 
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_flush_rx(&furi_hal_spi_bus_handle_subghz);
-    cc1101_flush_tx(&furi_hal_spi_bus_handle_subghz);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHW);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_MDMCFG3,
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_flush_rx(furi_hal_subghz.spi_bus_handle);
+    cc1101_flush_tx(furi_hal_subghz.spi_bus_handle);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHW);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_MDMCFG3,
                      0b01111111); // symbol rate
     cc1101_write_reg(
-        &furi_hal_spi_bus_handle_subghz,
+        furi_hal_subghz.spi_bus_handle,
         CC1101_AGCCTRL2,
         0b00000111); // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAGN_TARGET 42 dB
     cc1101_write_reg(
-        &furi_hal_spi_bus_handle_subghz,
+        furi_hal_subghz.spi_bus_handle,
         CC1101_AGCCTRL1,
         0b00001000); // 0; 0 - LNA 2 gain is decreased to minimum before decreasing LNA gain; 00 - Relative carrier sense threshold disabled; 1000 - Absolute carrier sense threshold disabled
     cc1101_write_reg(
-        &furi_hal_spi_bus_handle_subghz,
+        furi_hal_subghz.spi_bus_handle,
         CC1101_AGCCTRL0,
         0b00110000); // 00 - No hysteresis, medium asymmetric dead zone, medium gain ; 11 - 64 samples agc; 00 - Normal AGC, 00 - 4dB boundary
 
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 
     furi_hal_subghz_set_path(FuriHalSubGhzPathIsolate);
 
@@ -118,20 +118,23 @@ static int32_t subghz_frequency_analyzer_worker_thread(void* context) {
         // First stage: coarse scan
         for(size_t i = 0; i < subghz_setting_get_frequency_count(instance->setting); i++) {
             if(furi_hal_subghz_is_frequency_valid(
-                   subghz_setting_get_frequency(instance->setting, i))) {
-                furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-                cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
+                   subghz_setting_get_frequency(instance->setting, i)) &&
+               !((furi_hal_subghz.radio_type == SubGhzRadioExternal) &&
+                 (subghz_setting_get_frequency(instance->setting, i) >= 311900000 &&
+                  subghz_setting_get_frequency(instance->setting, i) <= 312200000))) {
+                furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+                cc1101_switch_to_idle(furi_hal_subghz.spi_bus_handle);
                 frequency = cc1101_set_frequency(
-                    &furi_hal_spi_bus_handle_subghz,
+                    furi_hal_subghz.spi_bus_handle,
                     subghz_setting_get_frequency(instance->setting, i));
 
-                cc1101_calibrate(&furi_hal_spi_bus_handle_subghz);
+                cc1101_calibrate(furi_hal_subghz.spi_bus_handle);
                 do {
-                    status = cc1101_get_status(&furi_hal_spi_bus_handle_subghz);
+                    status = cc1101_get_status(furi_hal_subghz.spi_bus_handle);
                 } while(status.STATE != CC1101StateIDLE);
 
-                cc1101_switch_to_rx(&furi_hal_spi_bus_handle_subghz);
-                furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+                cc1101_switch_to_rx(furi_hal_subghz.spi_bus_handle);
+                furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 
                 furi_delay_ms(2);
 
@@ -166,17 +169,17 @@ static int32_t subghz_frequency_analyzer_worker_thread(void* context) {
                 i < frequency_rssi.frequency_coarse + 300000;
                 i += 20000) {
                 if(furi_hal_subghz_is_frequency_valid(i)) {
-                    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-                    cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
-                    frequency = cc1101_set_frequency(&furi_hal_spi_bus_handle_subghz, i);
+                    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+                    cc1101_switch_to_idle(furi_hal_subghz.spi_bus_handle);
+                    frequency = cc1101_set_frequency(furi_hal_subghz.spi_bus_handle, i);
 
-                    cc1101_calibrate(&furi_hal_spi_bus_handle_subghz);
+                    cc1101_calibrate(furi_hal_subghz.spi_bus_handle);
                     do {
-                        status = cc1101_get_status(&furi_hal_spi_bus_handle_subghz);
+                        status = cc1101_get_status(furi_hal_subghz.spi_bus_handle);
                     } while(status.STATE != CC1101StateIDLE);
 
-                    cc1101_switch_to_rx(&furi_hal_spi_bus_handle_subghz);
-                    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+                    cc1101_switch_to_rx(furi_hal_subghz.spi_bus_handle);
+                    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 
                     furi_delay_ms(2);
 

applications/main/subghz/scenes/subghz_scene_config.h

@@ -26,6 +26,7 @@ ADD_SCENE(subghz, set_fix_bft, SetFixBft)
 ADD_SCENE(subghz, set_cnt_bft, SetCntBft)
 ADD_SCENE(subghz, set_seed_bft, SetSeedBft)
 ADD_SCENE(subghz, frequency_analyzer, FrequencyAnalyzer)
+ADD_SCENE(subghz, ext_module_settings, ExtModuleSettings)
 ADD_SCENE(subghz, read_raw, ReadRAW)
 ADD_SCENE(subghz, more_raw, MoreRAW)
 ADD_SCENE(subghz, decode_raw, DecodeRAW)

applications/main/subghz/scenes/subghz_scene_ext_module_settings.c

@@ -0,0 +1,54 @@
+#include "../subghz_i.h"
+#include "../helpers/subghz_custom_event.h"
+
+uint8_t value_index;
+
+#define EXT_MODULES_COUNT (sizeof(radio_modules_variables_text) / sizeof(char* const))
+const char* const radio_modules_variables_text[] = {
+    "Internal",
+    "External",
+};
+
+static void subghz_scene_ext_module_changed(VariableItem* item) {
+    SubGhz* subghz = variable_item_get_context(item);
+    value_index = variable_item_get_current_value_index(item);
+    UNUSED(subghz);
+
+    variable_item_set_current_value_text(item, radio_modules_variables_text[value_index]);
+}
+static void subghz_ext_module_start_var_list_enter_callback(void* context, uint32_t index) {
+    SubGhz* subghz = context;
+    view_dispatcher_send_custom_event(subghz->view_dispatcher, index);
+}
+
+void subghz_scene_ext_module_settings_on_enter(void* context) {
+    SubGhz* subghz = context;
+
+    VariableItemList* variable_item_list = subghz->variable_item_list;
+
+    value_index = furi_hal_subghz.radio_type;
+    VariableItem* item = variable_item_list_add(
+        variable_item_list, "Module", EXT_MODULES_COUNT, subghz_scene_ext_module_changed, subghz);
+
+    variable_item_list_set_enter_callback(
+        variable_item_list, subghz_ext_module_start_var_list_enter_callback, subghz);
+
+    variable_item_set_current_value_index(item, value_index);
+    variable_item_set_current_value_text(item, radio_modules_variables_text[value_index]);
+
+    view_dispatcher_switch_to_view(subghz->view_dispatcher, SubGhzViewIdVariableItemList);
+}
+
+bool subghz_scene_ext_module_settings_on_event(void* context, SceneManagerEvent event) {
+    SubGhz* subghz = context;
+    UNUSED(subghz);
+    UNUSED(event);
+
+    return false;
+}
+
+void subghz_scene_ext_module_settings_on_exit(void* context) {
+    SubGhz* subghz = context;
+    variable_item_list_reset(subghz->variable_item_list);
+    furi_hal_subghz_set_radio_type(value_index);
+}

applications/main/subghz/scenes/subghz_scene_receiver.c

@@ -53,7 +53,10 @@ static void subghz_scene_receiver_update_statusbar(void* context) {
         } else {
             subghz_get_frequency_modulation(subghz, frequency_str, NULL);
             furi_string_printf(
-                modulation_str, "Mod: %s", furi_string_get_cstr(subghz->txrx->preset->name));
+                modulation_str,
+                "%s        Mod: %s",
+                furi_hal_subghz_get_radio_type() ? "Ext" : "Int",
+                furi_string_get_cstr(subghz->txrx->preset->name));
         }
 #else
         subghz_get_frequency_modulation(subghz, frequency_str, modulation_str);

applications/main/subghz/scenes/subghz_scene_start.c

@@ -10,6 +10,7 @@ enum SubmenuIndex {
     SubmenuIndexAddManually,
     SubmenuIndexFrequencyAnalyzer,
     SubmenuIndexReadRAW,
+    SubmenuIndexExtSettings,
 };
 
 void subghz_scene_start_submenu_callback(void* context, uint32_t index) {
@@ -54,6 +55,12 @@ void subghz_scene_start_on_enter(void* context) {
         SubmenuIndexFrequencyAnalyzer,
         subghz_scene_start_submenu_callback,
         subghz);
+    submenu_add_item(
+        subghz->submenu,
+        "Radio settings",
+        SubmenuIndexExtSettings,
+        subghz_scene_start_submenu_callback,
+        subghz);
     if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
         submenu_add_item(
             subghz->submenu, "Test", SubmenuIndexTest, subghz_scene_start_submenu_callback, subghz);
@@ -72,7 +79,17 @@ bool subghz_scene_start_on_event(void* context, SceneManagerEvent event) {
         view_dispatcher_stop(subghz->view_dispatcher);
         return true;
     } else if(event.type == SceneManagerEventTypeCustom) {
-        if(event.event == SubmenuIndexReadRAW) {
+        if(event.event == SubmenuIndexExtSettings) {
+            scene_manager_set_scene_state(
+                subghz->scene_manager, SubGhzSceneStart, SubmenuIndexExtSettings);
+            scene_manager_next_scene(subghz->scene_manager, SubGhzSceneExtModuleSettings);
+            return true;
+
+        } else if(!furi_hal_subghz_check_radio()) {
+            furi_string_set(subghz->error_str, "Please connect\nexternal radio");
+            scene_manager_next_scene(subghz->scene_manager, SubGhzSceneShowErrorSub);
+            return true;
+        } else if(event.event == SubmenuIndexReadRAW) {
             scene_manager_set_scene_state(
                 subghz->scene_manager, SubGhzSceneStart, SubmenuIndexReadRAW);
             subghz->txrx->rx_key_state = SubGhzRxKeyStateIDLE;
@@ -99,7 +116,6 @@ bool subghz_scene_start_on_event(void* context, SceneManagerEvent event) {
             scene_manager_next_scene(subghz->scene_manager, SubGhzSceneFrequencyAnalyzer);
             DOLPHIN_DEED(DolphinDeedSubGhzFrequencyAnalyzer);
             return true;
-
         } else if(event.event == SubmenuIndexTest) {
             scene_manager_set_scene_state(
                 subghz->scene_manager, SubGhzSceneStart, SubmenuIndexTest);

applications/main/subghz/subghz_cli.c

@@ -42,8 +42,9 @@ void subghz_cli_command_tx_carrier(Cli* cli, FuriString* args, void* context) {
     furi_hal_subghz_load_preset(FuriHalSubGhzPresetOok650Async);
     frequency = furi_hal_subghz_set_frequency_and_path(frequency);
 
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
-    furi_hal_gpio_write(&gpio_cc1101_g0, true);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, true);
 
     furi_hal_power_suppress_charge_enter();
 
@@ -264,7 +265,7 @@ void subghz_cli_command_rx(Cli* cli, FuriString* args, void* context) {
     furi_hal_subghz_reset();
     furi_hal_subghz_load_preset(FuriHalSubGhzPresetOok650Async);
     frequency = furi_hal_subghz_set_frequency_and_path(frequency);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
 
     furi_hal_power_suppress_charge_enter();
 

applications/main/subghz/subghz_i.c

@@ -69,7 +69,7 @@ void subghz_begin(SubGhz* subghz, uint8_t* preset_data) {
     furi_hal_subghz_reset();
     furi_hal_subghz_idle();
     furi_hal_subghz_load_custom_preset(preset_data);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     subghz->txrx->txrx_state = SubGhzTxRxStateIDLE;
 }
 
@@ -84,7 +84,7 @@ uint32_t subghz_rx(SubGhz* subghz, uint32_t frequency) {
 
     furi_hal_subghz_idle();
     uint32_t value = furi_hal_subghz_set_frequency_and_path(frequency);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     furi_hal_subghz_flush_rx();
     subghz_speaker_on(subghz);
     furi_hal_subghz_rx();
@@ -103,8 +103,9 @@ static bool subghz_tx(SubGhz* subghz, uint32_t frequency) {
     furi_assert(subghz->txrx->txrx_state != SubGhzTxRxStateSleep);
     furi_hal_subghz_idle();
     furi_hal_subghz_set_frequency_and_path(frequency);
-    furi_hal_gpio_write(&gpio_cc1101_g0, false);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, false);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
     subghz_speaker_on(subghz);
     bool ret = furi_hal_subghz_tx();
     subghz->txrx->txrx_state = SubGhzTxRxStateTx;

applications/main/subghz/views/receiver.c

@@ -230,13 +230,21 @@ void subghz_view_receiver_draw(Canvas* canvas, SubGhzViewReceiverModel* model) {
 
     if(model->history_item == 0) {
         if(model->mode == SubGhzViewReceiverModeLive) {
-            canvas_draw_icon(canvas, 0, 0, &I_Scanning_123x52);
+            canvas_draw_icon(
+                canvas,
+                0,
+                0,
+                furi_hal_subghz_get_radio_type() ? &I_Fishing_123x52 : &I_Scanning_123x52);
             canvas_set_font(canvas, FontPrimary);
             canvas_draw_str(canvas, 63, 46, "Scanning...");
             canvas_draw_line(canvas, 46, 51, 125, 51);
             canvas_set_font(canvas, FontSecondary);
         } else {
-            canvas_draw_icon(canvas, 0, 0, &I_Scanning_123x52);
+            canvas_draw_icon(
+                canvas,
+                0,
+                0,
+                furi_hal_subghz_get_radio_type() ? &I_Fishing_123x52 : &I_Scanning_123x52);
             canvas_set_font(canvas, FontPrimary);
             canvas_draw_str(canvas, 63, 46, "Decoding...");
             canvas_set_font(canvas, FontSecondary);

applications/main/subghz/views/subghz_frequency_analyzer.c

@@ -165,6 +165,7 @@ void subghz_frequency_analyzer_draw(Canvas* canvas, SubGhzFrequencyAnalyzerModel
     // Title
     canvas_set_color(canvas, ColorBlack);
     canvas_set_font(canvas, FontSecondary);
+    canvas_draw_str(canvas, 0, 7, furi_hal_subghz_get_radio_type() ? "Ext" : "Int");
     canvas_draw_str(canvas, 20, 7, "Frequency Analyzer");
 
     // RSSI

applications/main/subghz/views/subghz_read_raw.c

@@ -280,8 +280,9 @@ void subghz_read_raw_draw(Canvas* canvas, SubGhzReadRAWModel* model) {
     uint8_t graphics_mode = 1;
     canvas_set_color(canvas, ColorBlack);
     canvas_set_font(canvas, FontSecondary);
-    canvas_draw_str(canvas, 5, 7, furi_string_get_cstr(model->frequency_str));
-    canvas_draw_str(canvas, 40, 7, furi_string_get_cstr(model->preset_str));
+    canvas_draw_str(canvas, 0, 7, furi_string_get_cstr(model->frequency_str));
+    canvas_draw_str(canvas, 35, 7, furi_string_get_cstr(model->preset_str));
+    canvas_draw_str(canvas, 70, 7, furi_hal_subghz_get_radio_type() ? "E" : "I");
     canvas_draw_str_aligned(
         canvas, 126, 0, AlignRight, AlignTop, furi_string_get_cstr(model->sample_write));
 

applications/main/subghz/views/subghz_test_carrier.c

@@ -115,14 +115,16 @@ bool subghz_test_carrier_input(InputEvent* event, void* context) {
             furi_hal_subghz_set_path(model->path);
 
             if(model->status == SubGhzTestCarrierModelStatusRx) {
-                furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+                furi_hal_gpio_init(
+                    furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
                 furi_hal_subghz_rx();
             } else {
                 furi_hal_gpio_init(
-                    &gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
-                furi_hal_gpio_write(&gpio_cc1101_g0, true);
+                    furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+                furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, true);
                 if(!furi_hal_subghz_tx()) {
-                    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+                    furi_hal_gpio_init(
+                        furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
                     subghz_test_carrier->callback(
                         SubGhzTestCarrierEventOnlyRx, subghz_test_carrier->context);
                 }
@@ -140,7 +142,7 @@ void subghz_test_carrier_enter(void* context) {
     furi_hal_subghz_reset();
     furi_hal_subghz_load_preset(FuriHalSubGhzPresetOok650Async);
 
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
 
     with_view_model(
         subghz_test_carrier->view,

applications/main/subghz/views/subghz_test_static.c

@@ -143,8 +143,9 @@ void subghz_test_static_enter(void* context) {
     furi_hal_subghz_reset();
     furi_hal_subghz_load_preset(FuriHalSubGhzPresetOok650Async);
 
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
-    furi_hal_gpio_write(&gpio_cc1101_g0, false);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, false);
     instance->status_tx = SubGhzTestStaticStatusIDLE;
 
     with_view_model(

applications/main/subghz/views/transmitter.c

@@ -85,8 +85,9 @@ void subghz_view_transmitter_draw(Canvas* canvas, SubGhzViewTransmitterModel* mo
     canvas_set_color(canvas, ColorBlack);
     canvas_set_font(canvas, FontSecondary);
     elements_multiline_text(canvas, 0, 7, furi_string_get_cstr(model->key_str));
-    canvas_draw_str(canvas, 78, 7, furi_string_get_cstr(model->frequency_str));
-    canvas_draw_str(canvas, 113, 7, furi_string_get_cstr(model->preset_str));
+    canvas_draw_str(canvas, 72, 7, furi_string_get_cstr(model->frequency_str));
+    canvas_draw_str(canvas, 107, 7, furi_string_get_cstr(model->preset_str));
+    canvas_draw_str(canvas, 123, 7, furi_hal_subghz_get_radio_type() ? "E" : "I");
     if(model->show_button) subghz_view_transmitter_button_right(canvas, "Send");
 }
 

applications/main/unirfremix/unirfremix_app.c

@@ -522,13 +522,14 @@ static bool unirfremix_send_sub(UniRFRemix* app, FlipperFormat* fff_data) {
         furi_hal_subghz_reset();
         furi_hal_subghz_idle();
         furi_hal_subghz_load_custom_preset(app->txpreset->data);
-        furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+        furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
 
         furi_hal_subghz_idle();
 
         furi_hal_subghz_set_frequency_and_path(app->txpreset->frequency);
-        furi_hal_gpio_write(&gpio_cc1101_g0, false);
-        furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+        furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, false);
+        furi_hal_gpio_init(
+            furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
 
         if(!furi_hal_subghz_tx()) {
             FURI_LOG_E(TAG, "Sending not allowed");

applications/plugins/pocsag_pager/pocsag_pager_app_i.c

@@ -40,7 +40,7 @@ void pcsg_begin(POCSAGPagerApp* app, uint8_t* preset_data) {
     furi_hal_subghz_reset();
     furi_hal_subghz_idle();
     furi_hal_subghz_load_custom_preset(preset_data);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     app->txrx->txrx_state = PCSGTxRxStateIDLE;
 }
 
@@ -54,7 +54,7 @@ uint32_t pcsg_rx(POCSAGPagerApp* app, uint32_t frequency) {
 
     furi_hal_subghz_idle();
     uint32_t value = furi_hal_subghz_set_frequency_and_path(frequency);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     furi_hal_subghz_flush_rx();
     furi_hal_subghz_rx();
 

applications/plugins/protoview/app_subghz.c

@@ -52,7 +52,7 @@ void radio_begin(ProtoViewApp* app) {
     } else {
         furi_hal_subghz_load_custom_preset(ProtoViewModulations[app->modulation].custom);
     }
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     app->txrx->txrx_state = TxRxStateIDLE;
 }
 
@@ -80,7 +80,7 @@ uint32_t radio_rx(ProtoViewApp* app) {
     furi_hal_subghz_idle(); /* Put it into idle state in case it is sleeping. */
     uint32_t value = furi_hal_subghz_set_frequency_and_path(app->frequency);
     FURI_LOG_E(TAG, "Switched to frequency: %lu", value);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     furi_hal_subghz_flush_rx();
     furi_hal_subghz_rx();
     if(!app->txrx->debug_timer_sampling) {
@@ -134,8 +134,9 @@ void radio_tx_signal(ProtoViewApp* app, FuriHalSubGhzAsyncTxCallback data_feeder
     furi_hal_subghz_idle();
     uint32_t value = furi_hal_subghz_set_frequency_and_path(app->frequency);
     FURI_LOG_E(TAG, "Switched to frequency: %lu", value);
-    furi_hal_gpio_write(&gpio_cc1101_g0, false);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, false);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
 
     furi_hal_subghz_start_async_tx(data_feeder, ctx);
     while(!furi_hal_subghz_is_async_tx_complete()) furi_delay_ms(10);
@@ -156,7 +157,7 @@ void radio_tx_signal(ProtoViewApp* app, FuriHalSubGhzAsyncTxCallback data_feeder
 void protoview_timer_isr(void* ctx) {
     ProtoViewApp* app = ctx;
 
-    bool level = furi_hal_gpio_read(&gpio_cc1101_g0);
+    bool level = furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin);
     if(app->txrx->last_g0_value != level) {
         uint32_t now = DWT->CYCCNT;
         uint32_t dur = now - app->txrx->last_g0_change_time;

applications/plugins/protoview/view_direct_sampling.c

@@ -95,7 +95,7 @@ void view_enter_direct_sampling(ProtoViewApp* app) {
          * to stop the async RX will put it into idle) and configure the
          * G0 pin for reading. */
         furi_hal_subghz_rx();
-        furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+        furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     } else {
         raw_sampling_worker_stop(app);
     }
@@ -127,7 +127,7 @@ static void ds_timer_isr(void* ctx) {
     DirectSamplingViewPrivData* privdata = app->view_privdata;
 
     if(app->direct_sampling_enabled) {
-        bool level = furi_hal_gpio_read(&gpio_cc1101_g0);
+        bool level = furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin);
         bitmap_set(privdata->captured, CAPTURED_BITMAP_BYTES, privdata->captured_idx, level);
         privdata->captured_idx = (privdata->captured_idx + 1) % CAPTURED_BITMAP_BITS;
     }

applications/plugins/weather_station/weather_station_app_i.c

@@ -58,7 +58,7 @@ void ws_begin(WeatherStationApp* app, uint8_t* preset_data) {
     furi_hal_subghz_reset();
     furi_hal_subghz_idle();
     furi_hal_subghz_load_custom_preset(preset_data);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     app->txrx->txrx_state = WSTxRxStateIDLE;
 }
 
@@ -72,7 +72,7 @@ uint32_t ws_rx(WeatherStationApp* app, uint32_t frequency) {
 
     furi_hal_subghz_idle();
     uint32_t value = furi_hal_subghz_set_frequency_and_path(frequency);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
     furi_hal_subghz_flush_rx();
     furi_hal_subghz_rx();
 

firmware/targets/f7/api_symbols.csv

@@ -1334,13 +1334,18 @@ Function,+,furi_hal_spi_deinit_early,void,
 Function,-,furi_hal_spi_init,void,
 Function,+,furi_hal_spi_init_early,void,
 Function,+,furi_hal_spi_release,void,FuriHalSpiBusHandle*
+Function,+,furi_hal_subghz_check_radio,_Bool,
+Function,+,furi_hal_subghz_disable_ext_power,void,
 Function,-,furi_hal_subghz_dump_state,void,
+Function,+,furi_hal_subghz_enable_ext_power,void,
 Function,+,furi_hal_subghz_flush_rx,void,
 Function,+,furi_hal_subghz_flush_tx,void,
 Function,+,furi_hal_subghz_get_lqi,uint8_t,
+Function,+,furi_hal_subghz_get_radio_type,SubGhzRadioType,
 Function,+,furi_hal_subghz_get_rssi,float,
 Function,+,furi_hal_subghz_idle,void,
 Function,-,furi_hal_subghz_init,void,
+Function,+,furi_hal_subghz_init_check,_Bool,
 Function,+,furi_hal_subghz_is_async_tx_complete,_Bool,
 Function,+,furi_hal_subghz_is_frequency_valid,_Bool,uint32_t
 Function,+,furi_hal_subghz_is_rx_data_crc_valid,_Bool,
@@ -1357,6 +1362,7 @@ Function,+,furi_hal_subghz_set_async_mirror_pin,void,const GpioPin*
 Function,+,furi_hal_subghz_set_frequency,uint32_t,uint32_t
 Function,+,furi_hal_subghz_set_frequency_and_path,uint32_t,uint32_t
 Function,+,furi_hal_subghz_set_path,void,FuriHalSubGhzPath
+Function,+,furi_hal_subghz_set_radio_type,_Bool,SubGhzRadioType
 Function,-,furi_hal_subghz_shutdown,void,
 Function,+,furi_hal_subghz_sleep,void,
 Function,+,furi_hal_subghz_start_async_rx,void,"FuriHalSubGhzCaptureCallback, void*"
@@ -4555,12 +4561,15 @@ Variable,+,furi_hal_spi_bus_handle_nfc,FuriHalSpiBusHandle,
 Variable,+,furi_hal_spi_bus_handle_sd_fast,FuriHalSpiBusHandle,
 Variable,+,furi_hal_spi_bus_handle_sd_slow,FuriHalSpiBusHandle,
 Variable,+,furi_hal_spi_bus_handle_subghz,FuriHalSpiBusHandle,
+Variable,+,furi_hal_spi_bus_handle_subghz_ext,FuriHalSpiBusHandle,
+Variable,+,furi_hal_spi_bus_handle_subghz_int,FuriHalSpiBusHandle,
 Variable,+,furi_hal_spi_bus_r,FuriHalSpiBus,
 Variable,+,furi_hal_spi_preset_1edge_low_16m,const LL_SPI_InitTypeDef,
 Variable,+,furi_hal_spi_preset_1edge_low_2m,const LL_SPI_InitTypeDef,
 Variable,+,furi_hal_spi_preset_1edge_low_4m,const LL_SPI_InitTypeDef,
 Variable,+,furi_hal_spi_preset_1edge_low_8m,const LL_SPI_InitTypeDef,
 Variable,+,furi_hal_spi_preset_2edge_low_8m,const LL_SPI_InitTypeDef,
+Variable,+,furi_hal_subghz,volatile FuriHalSubGhz,
 Variable,+,gpio_button_back,const GpioPin,
 Variable,+,gpio_button_down,const GpioPin,
 Variable,+,gpio_button_left,const GpioPin,
@@ -4568,6 +4577,7 @@ Variable,+,gpio_button_ok,const GpioPin,
 Variable,+,gpio_button_right,const GpioPin,
 Variable,+,gpio_button_up,const GpioPin,
 Variable,+,gpio_cc1101_g0,const GpioPin,
+Variable,+,gpio_cc1101_g0_ext,const GpioPin,
 Variable,+,gpio_display_cs,const GpioPin,
 Variable,+,gpio_display_di,const GpioPin,
 Variable,+,gpio_display_rst_n,const GpioPin,
@@ -4596,9 +4606,13 @@ Variable,+,gpio_spi_d_miso,const GpioPin,
 Variable,+,gpio_spi_d_mosi,const GpioPin,
 Variable,+,gpio_spi_d_sck,const GpioPin,
 Variable,+,gpio_spi_r_miso,const GpioPin,
+Variable,+,gpio_spi_r_miso_ext,const GpioPin,
 Variable,+,gpio_spi_r_mosi,const GpioPin,
+Variable,+,gpio_spi_r_mosi_ext,const GpioPin,
 Variable,+,gpio_spi_r_sck,const GpioPin,
+Variable,+,gpio_spi_r_sck_ext,const GpioPin,
 Variable,+,gpio_subghz_cs,const GpioPin,
+Variable,+,gpio_subghz_cs_ext,const GpioPin,
 Variable,+,gpio_usart_rx,const GpioPin,
 Variable,+,gpio_usart_tx,const GpioPin,
 Variable,+,gpio_usb_dm,const GpioPin,

firmware/targets/f7/furi_hal/furi_hal_resources.c

@@ -8,9 +8,11 @@ const GpioPin vibro_gpio = {.port = VIBRO_GPIO_Port, .pin = VIBRO_Pin};
 const GpioPin ibutton_gpio = {.port = iBTN_GPIO_Port, .pin = iBTN_Pin};
 
 const GpioPin gpio_cc1101_g0 = {.port = CC1101_G0_GPIO_Port, .pin = CC1101_G0_Pin};
+const GpioPin gpio_cc1101_g0_ext = {.port = GPIOB, .pin = LL_GPIO_PIN_2};
 const GpioPin gpio_rf_sw_0 = {.port = RF_SW_0_GPIO_Port, .pin = RF_SW_0_Pin};
 
 const GpioPin gpio_subghz_cs = {.port = CC1101_CS_GPIO_Port, .pin = CC1101_CS_Pin};
+const GpioPin gpio_subghz_cs_ext = {.port = GPIOA, .pin = LL_GPIO_PIN_4};
 const GpioPin gpio_display_cs = {.port = DISPLAY_CS_GPIO_Port, .pin = DISPLAY_CS_Pin};
 const GpioPin gpio_display_rst_n = {.port = DISPLAY_RST_GPIO_Port, .pin = DISPLAY_RST_Pin};
 const GpioPin gpio_display_di = {.port = DISPLAY_DI_GPIO_Port, .pin = DISPLAY_DI_Pin};
@@ -31,6 +33,9 @@ const GpioPin gpio_spi_d_sck = {.port = SPI_D_SCK_GPIO_Port, .pin = SPI_D_SCK_Pi
 const GpioPin gpio_spi_r_miso = {.port = SPI_R_MISO_GPIO_Port, .pin = SPI_R_MISO_Pin};
 const GpioPin gpio_spi_r_mosi = {.port = SPI_R_MOSI_GPIO_Port, .pin = SPI_R_MOSI_Pin};
 const GpioPin gpio_spi_r_sck = {.port = SPI_R_SCK_GPIO_Port, .pin = SPI_R_SCK_Pin};
+const GpioPin gpio_spi_r_miso_ext = {.port = GPIOA, .pin = LL_GPIO_PIN_6};
+const GpioPin gpio_spi_r_mosi_ext = {.port = GPIOA, .pin = LL_GPIO_PIN_7};
+const GpioPin gpio_spi_r_sck_ext = {.port = GPIOB, .pin = LL_GPIO_PIN_3};
 
 const GpioPin gpio_ext_pc0 = {.port = GPIOC, .pin = LL_GPIO_PIN_0};
 const GpioPin gpio_ext_pc1 = {.port = GPIOC, .pin = LL_GPIO_PIN_1};

firmware/targets/f7/furi_hal/furi_hal_resources.h

@@ -45,9 +45,11 @@ extern const GpioPin vibro_gpio;
 extern const GpioPin ibutton_gpio;
 
 extern const GpioPin gpio_cc1101_g0;
+extern const GpioPin gpio_cc1101_g0_ext;
 extern const GpioPin gpio_rf_sw_0;
 
 extern const GpioPin gpio_subghz_cs;
+extern const GpioPin gpio_subghz_cs_ext;
 extern const GpioPin gpio_display_cs;
 extern const GpioPin gpio_display_rst_n;
 extern const GpioPin gpio_display_di;
@@ -68,6 +70,9 @@ extern const GpioPin gpio_spi_d_sck;
 extern const GpioPin gpio_spi_r_miso;
 extern const GpioPin gpio_spi_r_mosi;
 extern const GpioPin gpio_spi_r_sck;
+extern const GpioPin gpio_spi_r_miso_ext;
+extern const GpioPin gpio_spi_r_mosi_ext;
+extern const GpioPin gpio_spi_r_sck_ext;
 
 extern const GpioPin gpio_ext_pc0;
 extern const GpioPin gpio_ext_pc1;

firmware/targets/f7/furi_hal/furi_hal_spi.c

@@ -1,6 +1,7 @@
 #include "furi_hal_spi.h"
 #include "furi_hal_resources.h"
 #include <furi_hal_power.h>
+#include <furi_hal_subghz.h>
 
 #include <stdbool.h>
 #include <string.h>
@@ -25,7 +26,7 @@ void furi_hal_spi_deinit_early() {
 void furi_hal_spi_init() {
     furi_hal_spi_bus_init(&furi_hal_spi_bus_r);
 
-    furi_hal_spi_bus_handle_init(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_bus_handle_init(furi_hal_subghz.spi_bus_handle);
     furi_hal_spi_bus_handle_init(&furi_hal_spi_bus_handle_nfc);
     furi_hal_spi_bus_handle_init(&furi_hal_spi_bus_handle_sd_fast);
     furi_hal_spi_bus_handle_init(&furi_hal_spi_bus_handle_sd_slow);

firmware/targets/f7/furi_hal/furi_hal_spi_config.c

@@ -260,6 +260,15 @@ static void furi_hal_spi_bus_handle_subghz_event_callback(
     furi_hal_spi_bus_r_handle_event_callback(handle, event, &furi_hal_spi_preset_1edge_low_8m);
 }
 
+FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz_int = {
+    .bus = &furi_hal_spi_bus_r,
+    .callback = furi_hal_spi_bus_handle_subghz_event_callback,
+    .miso = &gpio_spi_r_miso,
+    .mosi = &gpio_spi_r_mosi,
+    .sck = &gpio_spi_r_sck,
+    .cs = &gpio_subghz_cs,
+};
+
 FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz = {
     .bus = &furi_hal_spi_bus_r,
     .callback = furi_hal_spi_bus_handle_subghz_event_callback,
@@ -269,6 +278,15 @@ FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz = {
     .cs = &gpio_subghz_cs,
 };
 
+FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz_ext = {
+    .bus = &furi_hal_spi_bus_r,
+    .callback = furi_hal_spi_bus_handle_subghz_event_callback,
+    .miso = &gpio_ext_pa6,
+    .mosi = &gpio_ext_pa7,
+    .sck = &gpio_ext_pb3,
+    .cs = &gpio_ext_pa4,
+};
+
 static void furi_hal_spi_bus_handle_nfc_event_callback(
     FuriHalSpiBusHandle* handle,
     FuriHalSpiBusHandleEvent event) {

firmware/targets/f7/furi_hal/furi_hal_spi_config.h

@@ -27,8 +27,12 @@ extern FuriHalSpiBus furi_hal_spi_bus_r;
 /** Furi Hal Spi Bus D (Display, SdCard) */
 extern FuriHalSpiBus furi_hal_spi_bus_d;
 
-/** CC1101 on `furi_hal_spi_bus_r` */
+/** CC1101 on current SPI bus */
 extern FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz;
+/** CC1101 on `furi_hal_spi_bus_r` */
+extern FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz_int;
+/** CC1101 on external `furi_hal_spi_bus_r` */
+extern FuriHalSpiBusHandle furi_hal_spi_bus_handle_subghz_ext;
 
 /** ST25R3916 on `furi_hal_spi_bus_r` */
 extern FuriHalSpiBusHandle furi_hal_spi_bus_handle_nfc;

firmware/targets/f7/furi_hal/furi_hal_subghz.c

@@ -6,6 +6,7 @@
 #include <furi_hal_spi.h>
 #include <furi_hal_interrupt.h>
 #include <furi_hal_resources.h>
+#include <furi_hal_power.h>
 
 #include <stm32wbxx_ll_dma.h>
 
@@ -16,95 +17,169 @@
 #include <stdio.h>
 
 #define TAG "FuriHalSubGhz"
+//Initialisation timeout (ms)
+#define INIT_TIMEOUT 10
 
 static uint32_t furi_hal_subghz_debug_gpio_buff[2];
-
-typedef struct {
-    volatile SubGhzState state;
-    volatile SubGhzRegulation regulation;
-    volatile FuriHalSubGhzPreset preset;
-    const GpioPin* async_mirror_pin;
-} FuriHalSubGhz;
+static bool last_OTG_state = false;
 
 volatile FuriHalSubGhz furi_hal_subghz = {
     .state = SubGhzStateInit,
     .regulation = SubGhzRegulationTxRx,
     .preset = FuriHalSubGhzPresetIDLE,
     .async_mirror_pin = NULL,
+    .radio_type = SubGhzRadioInternal,
+    .spi_bus_handle = &furi_hal_spi_bus_handle_subghz,
+    .cc1101_g0_pin = &gpio_cc1101_g0,
 };
 
+bool furi_hal_subghz_set_radio_type(SubGhzRadioType state) {
+    furi_hal_subghz.radio_type = state;
+    furi_hal_spi_bus_handle_deinit(furi_hal_subghz.spi_bus_handle);
+    if(state) {
+        furi_hal_subghz.spi_bus_handle = &furi_hal_spi_bus_handle_subghz_ext;
+        furi_hal_subghz.cc1101_g0_pin = &gpio_cc1101_g0_ext;
+    } else {
+        furi_hal_subghz.spi_bus_handle = &furi_hal_spi_bus_handle_subghz;
+        furi_hal_subghz.cc1101_g0_pin = &gpio_cc1101_g0;
+    }
+    furi_hal_spi_bus_handle_init(furi_hal_subghz.spi_bus_handle);
+    furi_hal_subghz_init_check();
+    return true;
+}
+
+SubGhzRadioType furi_hal_subghz_get_radio_type(void) {
+    return furi_hal_subghz.radio_type;
+}
+
 void furi_hal_subghz_set_async_mirror_pin(const GpioPin* pin) {
     furi_hal_subghz.async_mirror_pin = pin;
 }
 
-void furi_hal_subghz_init() {
+void furi_hal_subghz_init(void) {
+    furi_hal_subghz_init_check();
+}
+
+void furi_hal_subghz_enable_ext_power(void) {
+    if(furi_hal_subghz.radio_type != SubGhzRadioInternal && !furi_hal_power_is_otg_enabled()) {
+        furi_hal_power_enable_otg();
+    }
+}
+
+void furi_hal_subghz_disable_ext_power(void) {
+    if(furi_hal_subghz.radio_type != SubGhzRadioInternal && !last_OTG_state) {
+        furi_hal_power_disable_otg();
+    }
+}
+
+bool furi_hal_subghz_check_radio(void) {
+    bool result = true;
+
+    furi_hal_subghz_enable_ext_power();
+
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    uint8_t ver = cc1101_get_version(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
+
+    if((ver != 0) && (ver != 255)) {
+        FURI_LOG_D(TAG, "Radio check ok");
+    } else {
+        FURI_LOG_D(TAG, "Radio check failed");
+        furi_hal_subghz_disable_ext_power();
+        result = false;
+    }
+    return result;
+}
+
+bool furi_hal_subghz_init_check(void) {
+    bool result = true;
+
     furi_assert(furi_hal_subghz.state == SubGhzStateInit);
     furi_hal_subghz.state = SubGhzStateIdle;
     furi_hal_subghz.preset = FuriHalSubGhzPresetIDLE;
 
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    last_OTG_state = furi_hal_power_is_otg_enabled();
+    furi_hal_subghz_enable_ext_power();
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
 
 #ifdef FURI_HAL_SUBGHZ_TX_GPIO
     furi_hal_gpio_init(&FURI_HAL_SUBGHZ_TX_GPIO, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
 #endif
 
     // Reset
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
-    cc1101_reset(&furi_hal_spi_bus_handle_subghz);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    cc1101_reset(furi_hal_subghz.spi_bus_handle);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHighImpedance);
 
     // Prepare GD0 for power on self test
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
 
     // GD0 low
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHW);
-    while(furi_hal_gpio_read(&gpio_cc1101_g0) != false)
-        ;
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHW);
+    uint32_t test_start_time = furi_get_tick();
+    while(furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin) != false && result) {
+        if(furi_get_tick() - test_start_time > INIT_TIMEOUT) {
+            result = false;
+        }
+    }
 
     // GD0 high
     cc1101_write_reg(
-        &furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHW | CC1101_IOCFG_INV);
-    while(furi_hal_gpio_read(&gpio_cc1101_g0) != true)
-        ;
+        furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHW | CC1101_IOCFG_INV);
+    test_start_time = furi_get_tick();
+    while(furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin) != true && result) {
+        if(furi_get_tick() - test_start_time > INIT_TIMEOUT) {
+            result = false;
+        }
+    }
 
     // Reset GD0 to floating state
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHighImpedance);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
 
     // RF switches
     furi_hal_gpio_init(&gpio_rf_sw_0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW);
 
     // Go to sleep
-    cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
+    cc1101_shutdown(furi_hal_subghz.spi_bus_handle);
 
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
-    FURI_LOG_I(TAG, "Init OK");
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
+
+    if(result) {
+        FURI_LOG_I(TAG, "Init OK");
+    } else {
+        FURI_LOG_E(TAG, "Failed to initialization");
+        furi_hal_subghz_disable_ext_power();
+    }
+    return result;
 }
 
 void furi_hal_subghz_sleep() {
     furi_assert(furi_hal_subghz.state == SubGhzStateIdle);
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
 
-    cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
+    cc1101_switch_to_idle(furi_hal_subghz.spi_bus_handle);
 
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHighImpedance);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
 
-    cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
+    cc1101_shutdown(furi_hal_subghz.spi_bus_handle);
 
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
+
+    furi_hal_subghz_disable_ext_power();
 
     furi_hal_subghz.preset = FuriHalSubGhzPresetIDLE;
 }
 
 void furi_hal_subghz_dump_state() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     printf(
         "[furi_hal_subghz] cc1101 chip %d, version %d\r\n",
-        cc1101_get_partnumber(&furi_hal_spi_bus_handle_subghz),
-        cc1101_get_version(&furi_hal_spi_bus_handle_subghz));
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+        cc1101_get_partnumber(furi_hal_subghz.spi_bus_handle),
+        cc1101_get_version(furi_hal_subghz.spi_bus_handle));
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_load_preset(FuriHalSubGhzPreset preset) {
@@ -136,15 +211,15 @@ void furi_hal_subghz_load_preset(FuriHalSubGhzPreset preset) {
 
 void furi_hal_subghz_load_custom_preset(uint8_t* preset_data) {
     //load config
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_reset(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_reset(furi_hal_subghz.spi_bus_handle);
     uint32_t i = 0;
     uint8_t pa[8] = {0};
     while(preset_data[i]) {
-        cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, preset_data[i], preset_data[i + 1]);
+        cc1101_write_reg(furi_hal_subghz.spi_bus_handle, preset_data[i], preset_data[i + 1]);
         i += 2;
     }
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 
     //load pa table
     memcpy(&pa[0], &preset_data[i + 2], 8);
@@ -166,48 +241,48 @@ void furi_hal_subghz_load_custom_preset(uint8_t* preset_data) {
 }
 
 void furi_hal_subghz_load_registers(uint8_t* data) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_reset(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_reset(furi_hal_subghz.spi_bus_handle);
     uint32_t i = 0;
     while(data[i]) {
-        cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, data[i], data[i + 1]);
+        cc1101_write_reg(furi_hal_subghz.spi_bus_handle, data[i], data[i + 1]);
         i += 2;
     }
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_load_patable(const uint8_t data[8]) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_set_pa_table(&furi_hal_spi_bus_handle_subghz, data);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_set_pa_table(furi_hal_subghz.spi_bus_handle, data);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_write_packet(const uint8_t* data, uint8_t size) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_flush_tx(&furi_hal_spi_bus_handle_subghz);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_FIFO, size);
-    cc1101_write_fifo(&furi_hal_spi_bus_handle_subghz, data, size);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_flush_tx(furi_hal_subghz.spi_bus_handle);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_FIFO, size);
+    cc1101_write_fifo(furi_hal_subghz.spi_bus_handle, data, size);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_flush_rx() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_flush_rx(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_flush_rx(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_flush_tx() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_flush_tx(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_flush_tx(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 bool furi_hal_subghz_rx_pipe_not_empty() {
     CC1101RxBytes status[1];
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     cc1101_read_reg(
-        &furi_hal_spi_bus_handle_subghz, (CC1101_STATUS_RXBYTES) | CC1101_BURST, (uint8_t*)status);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+        furi_hal_subghz.spi_bus_handle, (CC1101_STATUS_RXBYTES) | CC1101_BURST, (uint8_t*)status);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
     // TODO: you can add a buffer overflow flag if needed
     if(status->NUM_RXBYTES > 0) {
         return true;
@@ -217,10 +292,10 @@ bool furi_hal_subghz_rx_pipe_not_empty() {
 }
 
 bool furi_hal_subghz_is_rx_data_crc_valid() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     uint8_t data[1];
-    cc1101_read_reg(&furi_hal_spi_bus_handle_subghz, CC1101_STATUS_LQI | CC1101_BURST, data);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    cc1101_read_reg(furi_hal_subghz.spi_bus_handle, CC1101_STATUS_LQI | CC1101_BURST, data);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
     if(((data[0] >> 7) & 0x01)) {
         return true;
     } else {
@@ -229,51 +304,52 @@ bool furi_hal_subghz_is_rx_data_crc_valid() {
 }
 
 void furi_hal_subghz_read_packet(uint8_t* data, uint8_t* size) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_read_fifo(&furi_hal_spi_bus_handle_subghz, data, size);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_read_fifo(furi_hal_subghz.spi_bus_handle, data, size);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_shutdown() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     // Reset and shutdown
-    cc1101_shutdown(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    cc1101_shutdown(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
+    furi_hal_subghz_disable_ext_power();
 }
 
 void furi_hal_subghz_reset() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
-    cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
-    cc1101_reset(&furi_hal_spi_bus_handle_subghz);
-    cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG0, CC1101IocfgHighImpedance);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    cc1101_switch_to_idle(furi_hal_subghz.spi_bus_handle);
+    cc1101_reset(furi_hal_subghz.spi_bus_handle);
+    cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG0, CC1101IocfgHighImpedance);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_idle() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_switch_to_idle(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_switch_to_idle(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 void furi_hal_subghz_rx() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_switch_to_rx(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_switch_to_rx(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 bool furi_hal_subghz_tx() {
     if(furi_hal_subghz.regulation != SubGhzRegulationTxRx) return false;
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    cc1101_switch_to_tx(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    cc1101_switch_to_tx(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
     return true;
 }
 
 float furi_hal_subghz_get_rssi() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    int32_t rssi_dec = cc1101_get_rssi(&furi_hal_spi_bus_handle_subghz);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    int32_t rssi_dec = cc1101_get_rssi(furi_hal_subghz.spi_bus_handle);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 
     float rssi = rssi_dec;
     if(rssi_dec >= 128) {
@@ -286,10 +362,10 @@ float furi_hal_subghz_get_rssi() {
 }
 
 uint8_t furi_hal_subghz_get_lqi() {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     uint8_t data[1];
-    cc1101_read_reg(&furi_hal_spi_bus_handle_subghz, CC1101_STATUS_LQI | CC1101_BURST, data);
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    cc1101_read_reg(furi_hal_subghz.spi_bus_handle, CC1101_STATUS_LQI | CC1101_BURST, data);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
     return data[0] & 0x7F;
 }
 
@@ -357,39 +433,39 @@ bool furi_hal_subghz_is_tx_allowed(uint32_t value) {
 uint32_t furi_hal_subghz_set_frequency(uint32_t value) {
     furi_hal_subghz.regulation = SubGhzRegulationTxRx;
 
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
-    uint32_t real_frequency = cc1101_set_frequency(&furi_hal_spi_bus_handle_subghz, value);
-    cc1101_calibrate(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
+    uint32_t real_frequency = cc1101_set_frequency(furi_hal_subghz.spi_bus_handle, value);
+    cc1101_calibrate(furi_hal_subghz.spi_bus_handle);
 
     while(true) {
-        CC1101Status status = cc1101_get_status(&furi_hal_spi_bus_handle_subghz);
+        CC1101Status status = cc1101_get_status(furi_hal_subghz.spi_bus_handle);
         if(status.STATE == CC1101StateIDLE) break;
     }
 
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
     return real_frequency;
 }
 
 void furi_hal_subghz_set_path(FuriHalSubGhzPath path) {
-    furi_hal_spi_acquire(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_acquire(furi_hal_subghz.spi_bus_handle);
     if(path == FuriHalSubGhzPath433) {
         furi_hal_gpio_write(&gpio_rf_sw_0, 0);
         cc1101_write_reg(
-            &furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
+            furi_hal_subghz.spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
     } else if(path == FuriHalSubGhzPath315) {
         furi_hal_gpio_write(&gpio_rf_sw_0, 1);
-        cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
+        cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW);
     } else if(path == FuriHalSubGhzPath868) {
         furi_hal_gpio_write(&gpio_rf_sw_0, 1);
         cc1101_write_reg(
-            &furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
+            furi_hal_subghz.spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
     } else if(path == FuriHalSubGhzPathIsolate) {
         furi_hal_gpio_write(&gpio_rf_sw_0, 0);
-        cc1101_write_reg(&furi_hal_spi_bus_handle_subghz, CC1101_IOCFG2, CC1101IocfgHW);
+        cc1101_write_reg(furi_hal_subghz.spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW);
     } else {
         furi_crash("SubGhz: Incorrect path during set.");
     }
-    furi_hal_spi_release(&furi_hal_spi_bus_handle_subghz);
+    furi_hal_spi_release(furi_hal_subghz.spi_bus_handle);
 }
 
 static bool furi_hal_subghz_start_debug() {
@@ -415,38 +491,29 @@ static bool furi_hal_subghz_stop_debug() {
     return ret;
 }
 
-volatile uint32_t furi_hal_subghz_capture_delta_duration = 0;
 volatile FuriHalSubGhzCaptureCallback furi_hal_subghz_capture_callback = NULL;
 volatile void* furi_hal_subghz_capture_callback_context = NULL;
 
 static void furi_hal_subghz_capture_ISR() {
-    // Channel 1
-    if(LL_TIM_IsActiveFlag_CC1(TIM2)) {
-        LL_TIM_ClearFlag_CC1(TIM2);
-        furi_hal_subghz_capture_delta_duration = LL_TIM_IC_GetCaptureCH1(TIM2);
+    if(!furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin)) {
         if(furi_hal_subghz_capture_callback) {
             if(furi_hal_subghz.async_mirror_pin != NULL)
                 furi_hal_gpio_write(furi_hal_subghz.async_mirror_pin, false);
 
             furi_hal_subghz_capture_callback(
-                true,
-                furi_hal_subghz_capture_delta_duration,
-                (void*)furi_hal_subghz_capture_callback_context);
+                true, TIM2->CNT, (void*)furi_hal_subghz_capture_callback_context);
         }
-    }
-    // Channel 2
-    if(LL_TIM_IsActiveFlag_CC2(TIM2)) {
-        LL_TIM_ClearFlag_CC2(TIM2);
+    } else {
         if(furi_hal_subghz_capture_callback) {
             if(furi_hal_subghz.async_mirror_pin != NULL)
                 furi_hal_gpio_write(furi_hal_subghz.async_mirror_pin, true);
 
             furi_hal_subghz_capture_callback(
-                false,
-                LL_TIM_IC_GetCaptureCH2(TIM2) - furi_hal_subghz_capture_delta_duration,
-                (void*)furi_hal_subghz_capture_callback_context);
+                false, TIM2->CNT, (void*)furi_hal_subghz_capture_callback_context);
         }
     }
+    //Forced correction for improved accuracy
+    TIM2->CNT = 9;
 }
 
 void furi_hal_subghz_start_async_rx(FuriHalSubGhzCaptureCallback callback, void* context) {
@@ -456,8 +523,13 @@ void furi_hal_subghz_start_async_rx(FuriHalSubGhzCaptureCallback callback, void*
     furi_hal_subghz_capture_callback = callback;
     furi_hal_subghz_capture_callback_context = context;
 
-    furi_hal_gpio_init_ex(
-        &gpio_cc1101_g0, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedLow, GpioAltFn1TIM2);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeInterruptRiseFall, GpioPullUp, GpioSpeedVeryHigh);
+    furi_hal_gpio_add_int_callback(
+        furi_hal_subghz.cc1101_g0_pin,
+        furi_hal_subghz_capture_ISR,
+        furi_hal_subghz_capture_callback);
+    furi_hal_gpio_enable_int_callback(furi_hal_subghz.cc1101_g0_pin);
 
     // Timer: base
     LL_TIM_InitTypeDef TIM_InitStruct = {0};
@@ -470,34 +542,9 @@ void furi_hal_subghz_start_async_rx(FuriHalSubGhzCaptureCallback callback, void*
     // Timer: advanced
     LL_TIM_SetClockSource(TIM2, LL_TIM_CLOCKSOURCE_INTERNAL);
     LL_TIM_DisableARRPreload(TIM2);
-    LL_TIM_SetTriggerInput(TIM2, LL_TIM_TS_TI2FP2);
-    LL_TIM_SetSlaveMode(TIM2, LL_TIM_SLAVEMODE_RESET);
-    LL_TIM_SetTriggerOutput(TIM2, LL_TIM_TRGO_RESET);
-    LL_TIM_EnableMasterSlaveMode(TIM2);
     LL_TIM_DisableDMAReq_TRIG(TIM2);
     LL_TIM_DisableIT_TRIG(TIM2);
 
-    // Timer: channel 1 indirect
-    LL_TIM_IC_SetActiveInput(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_ACTIVEINPUT_INDIRECTTI);
-    LL_TIM_IC_SetPrescaler(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_ICPSC_DIV1);
-    LL_TIM_IC_SetPolarity(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_IC_POLARITY_FALLING);
-    LL_TIM_IC_SetFilter(TIM2, LL_TIM_CHANNEL_CH1, LL_TIM_IC_FILTER_FDIV1);
-
-    // Timer: channel 2 direct
-    LL_TIM_IC_SetActiveInput(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_ACTIVEINPUT_DIRECTTI);
-    LL_TIM_IC_SetPrescaler(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_ICPSC_DIV1);
-    LL_TIM_IC_SetPolarity(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_IC_POLARITY_RISING);
-    LL_TIM_IC_SetFilter(TIM2, LL_TIM_CHANNEL_CH2, LL_TIM_IC_FILTER_FDIV32_N8);
-
-    // ISR setup
-    furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, furi_hal_subghz_capture_ISR, NULL);
-
-    // Interrupts and channels
-    LL_TIM_EnableIT_CC1(TIM2);
-    LL_TIM_EnableIT_CC2(TIM2);
-    LL_TIM_CC_EnableChannel(TIM2, LL_TIM_CHANNEL_CH1);
-    LL_TIM_CC_EnableChannel(TIM2, LL_TIM_CHANNEL_CH2);
-
     // Start timer
     LL_TIM_SetCounter(TIM2, 0);
     LL_TIM_EnableCounter(TIM2);
@@ -523,9 +570,8 @@ void furi_hal_subghz_stop_async_rx() {
     furi_hal_subghz_stop_debug();
 
     FURI_CRITICAL_EXIT();
-    furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
 
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
 }
 
 typedef struct {
@@ -624,7 +670,8 @@ static void furi_hal_subghz_async_tx_timer_isr() {
             } else if(furi_hal_subghz.state == SubGhzStateAsyncTxLast) {
                 furi_hal_subghz.state = SubGhzStateAsyncTxEnd;
                 //forcibly pulls the pin to the ground so that there is no carrier
-                furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullDown, GpioSpeedLow);
+                furi_hal_gpio_init(
+                    furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullDown, GpioSpeedLow);
                 LL_TIM_DisableCounter(TIM2);
             } else {
                 furi_crash(NULL);
@@ -651,9 +698,9 @@ bool furi_hal_subghz_start_async_tx(FuriHalSubGhzAsyncTxCallback callback, void*
     furi_hal_subghz_async_tx.buffer =
         malloc(API_HAL_SUBGHZ_ASYNC_TX_BUFFER_FULL * sizeof(uint32_t));
 
-    // Connect CC1101_GD0 to TIM2 as output
-    furi_hal_gpio_init_ex(
-        &gpio_cc1101_g0, GpioModeAltFunctionPushPull, GpioPullDown, GpioSpeedLow, GpioAltFn1TIM2);
+    furi_hal_gpio_write(furi_hal_subghz.cc1101_g0_pin, true);
+    furi_hal_gpio_init(
+        furi_hal_subghz.cc1101_g0_pin, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
 
     // Configure DMA
     LL_DMA_InitTypeDef dma_config = {0};
@@ -713,27 +760,25 @@ bool furi_hal_subghz_start_async_tx(FuriHalSubGhzAsyncTxCallback callback, void*
     LL_TIM_SetCounter(TIM2, 0);
     LL_TIM_EnableCounter(TIM2);
 
-    // Start debug
-    if(furi_hal_subghz_start_debug()) {
-        const GpioPin* gpio = furi_hal_subghz.async_mirror_pin;
-        furi_hal_subghz_debug_gpio_buff[0] = (uint32_t)gpio->pin << GPIO_NUMBER;
-        furi_hal_subghz_debug_gpio_buff[1] = gpio->pin;
+    //Signal generation for external G0
+    const GpioPin* gpio = furi_hal_subghz.cc1101_g0_pin;
+    furi_hal_subghz_debug_gpio_buff[0] = (uint32_t)gpio->pin << GPIO_NUMBER;
+    furi_hal_subghz_debug_gpio_buff[1] = gpio->pin;
 
-        dma_config.MemoryOrM2MDstAddress = (uint32_t)furi_hal_subghz_debug_gpio_buff;
-        dma_config.PeriphOrM2MSrcAddress = (uint32_t) & (gpio->port->BSRR);
-        dma_config.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
-        dma_config.Mode = LL_DMA_MODE_CIRCULAR;
-        dma_config.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
-        dma_config.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
-        dma_config.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
-        dma_config.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
-        dma_config.NbData = 2;
-        dma_config.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
-        dma_config.Priority = LL_DMA_PRIORITY_VERYHIGH;
-        LL_DMA_Init(DMA1, LL_DMA_CHANNEL_2, &dma_config);
-        LL_DMA_SetDataLength(DMA1, LL_DMA_CHANNEL_2, 2);
-        LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_2);
-    }
+    dma_config.MemoryOrM2MDstAddress = (uint32_t)furi_hal_subghz_debug_gpio_buff;
+    dma_config.PeriphOrM2MSrcAddress = (uint32_t) & (gpio->port->BSRR);
+    dma_config.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
+    dma_config.Mode = LL_DMA_MODE_CIRCULAR;
+    dma_config.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    dma_config.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    dma_config.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    dma_config.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    dma_config.NbData = 2;
+    dma_config.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
+    dma_config.Priority = LL_DMA_PRIORITY_VERYHIGH;
+    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_2, &dma_config);
+    LL_DMA_SetDataLength(DMA1, LL_DMA_CHANNEL_2, 2);
+    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_2);
 
     return true;
 }
@@ -765,7 +810,7 @@ void furi_hal_subghz_stop_async_tx() {
     furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, NULL, NULL);
 
     // Deinitialize GPIO
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
 
     // Stop debug
     if(furi_hal_subghz_stop_debug()) {

firmware/targets/furi_hal_include/furi_hal_subghz.h

@@ -10,6 +10,7 @@
 #include <stddef.h>
 #include <toolbox/level_duration.h>
 #include <furi_hal_gpio.h>
+#include <furi_hal_spi_types.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -61,6 +62,25 @@ typedef enum {
     SubGhzRegulationTxRx, /**TxRx*/
 } SubGhzRegulation;
 
+/** SubGhz radio types */
+typedef enum {
+    SubGhzRadioInternal,
+    SubGhzRadioExternal,
+} SubGhzRadioType;
+
+/** Structure for accessing SubGhz settings*/
+typedef struct {
+    volatile SubGhzState state;
+    volatile SubGhzRegulation regulation;
+    volatile FuriHalSubGhzPreset preset;
+    const GpioPin* async_mirror_pin;
+    SubGhzRadioType radio_type;
+    FuriHalSpiBusHandle* spi_bus_handle;
+    const GpioPin* cc1101_g0_pin;
+} FuriHalSubGhz;
+
+extern volatile FuriHalSubGhz furi_hal_subghz;
+
 /* Mirror RX/TX async modulation signal to specified pin
  *
  * @warning    Configures pin to output mode. Make sure it is not connected
@@ -76,6 +96,13 @@ void furi_hal_subghz_set_async_mirror_pin(const GpioPin* pin);
  */
 void furi_hal_subghz_init();
 
+/** Initialize and switch to power save mode Used by internal API-HAL
+ * initialization routine Can be used to reinitialize device to safe state and
+ * send it to sleep
+ * @return     true if initialisation is successfully
+ */
+bool furi_hal_subghz_init_check(void);
+
 /** Send device to sleep mode
  */
 void furi_hal_subghz_sleep();
@@ -258,6 +285,30 @@ bool furi_hal_subghz_is_async_tx_complete();
  */
 void furi_hal_subghz_stop_async_tx();
 
+/** Switching between internal and external radio
+ * @param      state SubGhzRadioInternal or SubGhzRadioExternal
+ * @return     true if switching is successful
+ */
+bool furi_hal_subghz_set_radio_type(SubGhzRadioType state);
+
+/** Get current radio
+ * @return     SubGhzRadioInternal or SubGhzRadioExternal
+ */
+SubGhzRadioType furi_hal_subghz_get_radio_type(void);
+
+/** Check for a radio module
+ * @return     true if check is successful
+ */
+bool furi_hal_subghz_check_radio(void);
+
+/** Turn on the power of the external radio module
+ */
+void furi_hal_subghz_enable_ext_power(void);
+
+/** Turn off the power of the external radio module
+ */
+void furi_hal_subghz_disable_ext_power(void);
+
 #ifdef __cplusplus
 }
 #endif

lib/subghz/subghz_tx_rx_worker.c

@@ -70,7 +70,7 @@ bool subghz_tx_rx_worker_rx(SubGhzTxRxWorker* instance, uint8_t* data, uint8_t*
         furi_delay_tick(1);
     }
     //waiting for reception to complete
-    while(furi_hal_gpio_read(&gpio_cc1101_g0)) {
+    while(furi_hal_gpio_read(furi_hal_subghz.cc1101_g0_pin)) {
         furi_delay_tick(1);
         if(!--timeout) {
             FURI_LOG_W(TAG, "RX cc1101_g0 timeout");
@@ -104,14 +104,16 @@ void subghz_tx_rx_worker_tx(SubGhzTxRxWorker* instance, uint8_t* data, size_t si
     furi_hal_subghz_write_packet(data, size);
     furi_hal_subghz_tx(); //start send
     instance->status = SubGhzTxRxWorkerStatusTx;
-    while(!furi_hal_gpio_read(&gpio_cc1101_g0)) { // Wait for GDO0 to be set -> sync transmitted
+    while(!furi_hal_gpio_read(
+        furi_hal_subghz.cc1101_g0_pin)) { // Wait for GDO0 to be set -> sync transmitted
         furi_delay_tick(1);
         if(!--timeout) {
             FURI_LOG_W(TAG, "TX !cc1101_g0 timeout");
             break;
         }
     }
-    while(furi_hal_gpio_read(&gpio_cc1101_g0)) { // Wait for GDO0 to be cleared -> end of packet
+    while(furi_hal_gpio_read(
+        furi_hal_subghz.cc1101_g0_pin)) { // Wait for GDO0 to be cleared -> end of packet
         furi_delay_tick(1);
         if(!--timeout) {
             FURI_LOG_W(TAG, "TX cc1101_g0 timeout");
@@ -134,7 +136,7 @@ static int32_t subghz_tx_rx_worker_thread(void* context) {
     furi_hal_subghz_idle();
     furi_hal_subghz_load_preset(FuriHalSubGhzPresetGFSK9_99KbAsync);
     //furi_hal_subghz_load_preset(FuriHalSubGhzPresetMSK99_97KbAsync);
-    furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeInput, GpioPullNo, GpioSpeedLow);
+    furi_hal_gpio_init(furi_hal_subghz.cc1101_g0_pin, GpioModeInput, GpioPullNo, GpioSpeedLow);
 
     furi_hal_subghz_set_frequency_and_path(instance->frequency);
     furi_hal_subghz_flush_rx();