Latest Release RM0416-0359-0.100.4-22e2176 on PATREON & GitHub - MAIN…

… APP TWEAKS

applications/main/gpio/gpio_app.c

@@ -60,6 +60,16 @@ GpioApp* gpio_app_alloc(void) {
     view_dispatcher_add_view(
         app->view_dispatcher, GpioAppViewGpioTest, gpio_test_get_view(app->gpio_test));
 
+    app->gpio_i2c_scanner = gpio_i2c_scanner_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        GpioAppViewI2CScanner,
+        gpio_i2c_scanner_get_view(app->gpio_i2c_scanner));
+
+    app->gpio_i2c_sfp = gpio_i2c_sfp_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, GpioAppViewI2CSfp, gpio_i2c_sfp_get_view(app->gpio_i2c_sfp));
+
     app->widget = widget_alloc();
     view_dispatcher_add_view(
         app->view_dispatcher, GpioAppViewUsbUartCloseRpc, widget_get_view(app->widget));
@@ -84,6 +94,8 @@ void gpio_app_free(GpioApp* app) {
     // Views
     view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewVarItemList);
     view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewGpioTest);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewI2CScanner);
+    view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewI2CSfp);
     view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUart);
     view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUartCfg);
     view_dispatcher_remove_view(app->view_dispatcher, GpioAppViewUsbUartCloseRpc);
@@ -93,6 +105,8 @@ void gpio_app_free(GpioApp* app) {
     gpio_test_free(app->gpio_test);
     gpio_usb_uart_free(app->gpio_usb_uart);
     dialog_ex_free(app->dialog);
+    gpio_i2c_scanner_free(app->gpio_i2c_scanner);
+    gpio_i2c_sfp_free(app->gpio_i2c_sfp);
 
     // View dispatcher
     view_dispatcher_free(app->view_dispatcher);

applications/main/gpio/gpio_app_i.h

@@ -16,6 +16,8 @@
 #include <gui/modules/dialog_ex.h>
 #include "views/gpio_test.h"
 #include "views/gpio_usb_uart.h"
+#include "views/gpio_i2c_scanner.h"
+#include "views/gpio_i2c_sfp.h"
 #include "gpio_icons.h"
 #include <expansion/expansion.h>
 
@@ -34,6 +36,8 @@ struct GpioApp {
     GpioUsbUart* gpio_usb_uart;
     GPIOItems* gpio_items;
     UsbUartBridge* usb_uart_bridge;
+    GpioI2CScanner* gpio_i2c_scanner;
+    GpioI2CSfp* gpio_i2c_sfp;
     UsbUartConfig* usb_uart_cfg;
 };
 
@@ -44,4 +48,6 @@ typedef enum {
     GpioAppViewUsbUartCfg,
     GpioAppViewUsbUartCloseRpc,
     GpioAppViewExitConfirm,
+    GpioAppViewI2CScanner,
+    GpioAppViewI2CSfp
 } GpioAppView;

applications/main/gpio/gpio_custom_event.h

@@ -5,6 +5,8 @@ typedef enum {
     GpioStartEventOtgOn,
     GpioStartEventManualControl,
     GpioStartEventUsbUart,
+    GpioStartEventI2CScanner,
+    GpioStartEventI2CSfp,
 
     GpioCustomEventErrorBack,
 

applications/main/gpio/gpio_i2c_scanner_control.c

@@ -0,0 +1,23 @@
+#include "gpio_i2c_scanner_control.h"
+#include <furi.h>
+
+void gpio_i2c_scanner_run_once(I2CScannerState* i2c_scanner_state) {
+    //Reset the number of items for rewriting the array
+    i2c_scanner_state->items = 0;
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_external);
+
+    uint32_t response_timeout_ticks = furi_ms_to_ticks(5.f);
+
+    //Addresses 0 to 7 are reserved and won't be scanned
+    for(int i = FIRST_NON_RESERVED_I2C_ADDRESS; i <= HIGHEST_I2C_ADDRESS; i++) {
+        if(furi_hal_i2c_is_device_ready(
+               &furi_hal_i2c_handle_external,
+               i << 1,
+               response_timeout_ticks)) { //Bitshift of 1 bit to convert 7-Bit Address into 8-Bit Address
+            i2c_scanner_state->responding_address[i2c_scanner_state->items] = i;
+            i2c_scanner_state->items++;
+        }
+    }
+
+    furi_hal_i2c_release(&furi_hal_i2c_handle_external);
+}

applications/main/gpio/gpio_i2c_scanner_control.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <furi_hal_i2c.h>
+
+#define FIRST_NON_RESERVED_I2C_ADDRESS 8
+#define HIGHEST_I2C_ADDRESS 127
+#define AVAILABLE_NONRESVERED_I2C_ADDRESSES 120
+
+typedef struct {
+    uint8_t items;
+    uint8_t responding_address[AVAILABLE_NONRESVERED_I2C_ADDRESSES];
+} I2CScannerState;
+
+/** Scans the I2C-Bus (SDA: Pin 15, SCL: Pin 16) for available 7-Bit slave addresses. Saves the number of detected slaves and their addresses.
+ *
+ * @param      i2c_scanner_state  State including the detected addresses and the number of addresses saved.
+ */
+void gpio_i2c_scanner_run_once(I2CScannerState* st);