BRING BACK GPIO

2026-04-24 03:29:57 -07:00 · 2022-10-30 19:15:47 -04:00
parent e300e9c0a9
commit 99f08decb2
16 changed files with 852 additions and 4 deletions
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -18,13 +18,13 @@
 - Fixed icons for U2F and iButton.
 - Added source file from third party animations.
 - Restored animation building.
+- Restored: [I²C-Scanner #1431 (By GitChris3004)](https://github.com/flipperdevices/flipperzero-firmware/pull/1431)
+- Restored: GPIO: Feature to read EEPROM of SFP Modules using I2C [(By marcusju)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/198)

 <details>
  <summary><B>TO DO / REMOVED</b></summary><br/>

 - [Keynote BT plugin: long press on OK to switch between Space and Retur… #1729 (By coded-with-claws)]
- GPIO: Feature to read EEPROM of SFP Modules using I2C [(By marcusju)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/198)
- [I²C-Scanner #1431 (By GitChris3004)](https://github.com/flipperdevices/flipperzero-firmware/pull/1431)
 - Settings: Rename from App [(Thanks to E_Surge)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/259)
 - [Chip8 Emulator (By mega8bit)](https://github.com/mega8bit/flipperzero-firmware) Updated by ESurge. Add SD folder `chip8`, [Get GAMES HERE](https://johnearnest.github.io/chip8Archive/) (Needs Controls Programmed) `HIDDEN because its broken` [Last Version Before Removal](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/tree/ec49915e1c4e908d9a2b0d4425fd97526755e276/applications/plugins/chip8)
 - Lost To Faps: Settings: Favorite Game by holding UP on Desktop [Thanks to gotnull](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/57)
@@ -137,6 +137,8 @@ $ ./fbt plugin_dist
 - - Tetris, Snake, or Flappy Bird Score For EXP
 - - Zombiez for every 20 Zombie kills
 - Dolphin: SD dolphin manifest updated to weight animations differently
+- GPIO: Feature to read EEPROM of SFP Modules using I2C [(By marcusju)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/198)
+- GPIO: [I²C-Scanner #1431 (By GitChris3004)](https://github.com/flipperdevices/flipperzero-firmware/pull/1431)
 - iButton: [Fixed issue when loading iButton keys or U2F token from Archive app #382 (By ESurge)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/382)
 - Icon Decode/Encode [(Thanks to PixlEmly)](https://github.com/RogueMaster/flipperzero-firmware-wPlugins/pull/55/files)
 - IR: Universal AC, Audio, Fans & Projectors from [Unleashed/Eng1n33r](https://github.com/DarkFlippers/unleashed-firmware)
--- a/applications/main/gpio/gpio_app.c
+++ b/applications/main/gpio/gpio_app.c
@@ -51,6 +51,16 @@ GpioApp* gpio_app_alloc() {
    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));
@@ -75,6 +85,8 @@ 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);
@@ -82,6 +94,8 @@ void gpio_app_free(GpioApp* app) {
    widget_free(app->widget);
    gpio_test_free(app->gpio_test);
    gpio_usb_uart_free(app->gpio_usb_uart);
+    gpio_i2c_scanner_free(app->gpio_i2c_scanner);
+    gpio_i2c_sfp_free(app->gpio_i2c_sfp);

    // View dispatcher
    view_dispatcher_free(app->view_dispatcher);
--- a/applications/main/gpio/gpio_app_i.h
+++ b/applications/main/gpio/gpio_app_i.h
@@ -15,6 +15,8 @@
 #include <gui/modules/widget.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 <assets_icons.h>

 struct GpioApp {
@@ -29,6 +31,8 @@ struct GpioApp {
    GpioTest* gpio_test;
    GpioUsbUart* gpio_usb_uart;
    UsbUartBridge* usb_uart_bridge;
+    GpioI2CScanner* gpio_i2c_scanner;
+    GpioI2CSfp* gpio_i2c_sfp;
 };

 typedef enum {
@@ -37,4 +41,6 @@ typedef enum {
    GpioAppViewUsbUart,
    GpioAppViewUsbUartCfg,
    GpioAppViewUsbUartCloseRpc,
+    GpioAppViewI2CScanner,
+    GpioAppViewI2CSfp
 } GpioAppView;
--- a/applications/main/gpio/gpio_custom_event.h
+++ b/applications/main/gpio/gpio_custom_event.h
@@ -5,6 +5,8 @@ typedef enum {
    GpioStartEventOtgOn,
    GpioStartEventManualControl,
    GpioStartEventUsbUart,
+    GpioStartEventI2CScanner,
+    GpioStartEventI2CSfp,

    GpioCustomEventErrorBack,

--- a/applications/main/gpio/gpio_i2c_scanner_control.c
+++ b/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);
+}
--- a/applications/main/gpio/gpio_i2c_scanner_control.h
+++ b/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);
--- a/applications/main/gpio/gpio_i2c_sfp_control.c
+++ b/applications/main/gpio/gpio_i2c_sfp_control.c
@@ -0,0 +1,334 @@
+#include "gpio_i2c_sfp_control.h"
+#include <furi_hal.h>
+#include <string.h>
+
+// This is map mapping the connector type to the appropriate name. (see SFF-8024 Rev. 4.9, Table 4-3)
+const char* sfp_connector_map[256] = {
+    "Unknown or unspecified",
+    "SC",
+    "Fibre Channel Style 1",
+    "Fibre Channel Style 2",
+    "BNC/TNC",
+    "Fibre Channel Coax",
+    "Fiber Jack",
+    "LC",
+    "MT-RJ",
+    "MU",
+    "SG",
+    "Optical Pigtail",
+    "MP0 1x12",
+    "MP 2x16",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "HSSDC II",
+    "Copper pigtail",
+    "RJ45",
+    "No seperable connector",
+    "MXC 2x16",
+    "CS optical connector",
+    "SN (prev. Mini CS)",
+    "MPO 2x12",
+    "MPO 1x16",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
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+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved"};
+
+void str_part(uint8_t* data, char* buffer, int start, int len) {
+    int i;
+    for(i = start; i < start + len; i++) {
+        buffer[i - start] = data[i];
+    }
+    buffer[i - start] = '\0';
+}
+
+/*
+void print_part(uint8_t *data, char *ptype, char *prefix, int start, int len){
+    printf("%s: ", prefix);
+    for (int i=start; i<start+len; i++){
+        printf(ptype, data[i]);
+    }
+    printf("\n");
+}
+*/
+
+void gpio_i2c_sfp_run_once(I2CSfpState* i2c_sfp_state) {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_external);
+    // Allocate buffer for SFP Data
+    uint8_t sfp_data[255];
+    uint32_t response_timeout_ticks = furi_ms_to_ticks(5.f);
+
+    // Check for SFP Module on I2C Bus
+    if(furi_hal_i2c_is_device_ready(
+           &furi_hal_i2c_handle_external, SFP_I2C_ADDRESS << 1, response_timeout_ticks)) {
+        for(uint8_t i = 0; i <= 254; i++) {
+            uint8_t data = 0;
+            // Read data from register
+            furi_hal_i2c_read_reg_8(
+                &furi_hal_i2c_handle_external,
+                SFP_I2C_ADDRESS << 1,
+                i,
+                &data,
+                response_timeout_ticks);
+            // Save data
+            sfp_data[i] = data;
+        }
+
+        /*
+        print_part(sfp_data, "%c",   "Vendor", 20, 16);
+        print_part(sfp_data, "%02X", "OUI", 37, 3);
+        print_part(sfp_data, "%c",   "Rev", 56, 4);
+        print_part(sfp_data, "%c",   "PN", 40, 16);
+        print_part(sfp_data, "%c",   "SN", 68, 16);
+        print_part(sfp_data, "%c",   "DC", 84,  6);
+
+        printf("Typ: 0x%02X\r\n", sfp_data[0]);
+        printf("Connector: 0x%02X\r\n", sfp_data[2]);
+        printf("Bitrate: %u MBd\r\n", sfp_data[12]*100);
+        printf("Wavelength: %u nm\r\n", sfp_data[60] * 256 + sfp_data[61]);
+        printf("             %-6s %-6s %-6s %-6s %-6s\r\n", "SM", "OM1", "OM2", "OM3", "OM4");
+        printf("Max length: %3u km %4u m %4u m %4u m %4u m\r\n", sfp_data[14], sfp_data[17]*10, sfp_data[16]*10, sfp_data[19]*10, sfp_data[18]*10);
+        */
+
+        str_part(sfp_data, i2c_sfp_state->vendor, 20, 16);
+        str_part(sfp_data, i2c_sfp_state->rev, 56, 4);
+        str_part(sfp_data, i2c_sfp_state->pn, 40, 16);
+        str_part(sfp_data, i2c_sfp_state->sn, 68, 16);
+        str_part(sfp_data, i2c_sfp_state->dc, 84, 6);
+
+        //Look up connector in table and copy to struct.
+        strcpy(i2c_sfp_state->connector, sfp_connector_map[sfp_data[2]]);
+        i2c_sfp_state->bitrate = sfp_data[12] * 100;
+        i2c_sfp_state->wavelength = sfp_data[60] * 256 + sfp_data[61];
+        i2c_sfp_state->sm_reach = sfp_data[14];
+        i2c_sfp_state->mm_reach_om3 = sfp_data[19] * 10;
+    }
+    furi_hal_i2c_release(&furi_hal_i2c_handle_external);
+}
--- a/applications/main/gpio/gpio_i2c_sfp_control.h
+++ b/applications/main/gpio/gpio_i2c_sfp_control.h
@@ -0,0 +1,32 @@
+#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
+#define SFP_I2C_ADDRESS 0x50
+
+typedef struct {
+    char vendor[32];
+    char oui[32];
+    char rev[32];
+    char pn[32];
+    char sn[32];
+    char dc[32];
+    uint8_t type;
+    char connector[32];
+    int wavelength;
+    int sm_reach;
+    int mm_reach_om3;
+    int bitrate;
+} I2CSfpState;
+
+/** Reads data from a connected SFP on I2C-Bus (SDA: Pin 15, SCL: Pin 16). Saves data from SFP.
+ *
+ * @param      i2c_sfp_state  Data collected from SFP.
+ */
+void gpio_i2c_sfp_run_once(I2CSfpState* st);
--- a/applications/main/gpio/scenes/gpio_scene_config.h
+++ b/applications/main/gpio/scenes/gpio_scene_config.h
@@ -3,3 +3,5 @@ ADD_SCENE(gpio, test, Test)
 ADD_SCENE(gpio, usb_uart, UsbUart)
 ADD_SCENE(gpio, usb_uart_cfg, UsbUartCfg)
 ADD_SCENE(gpio, usb_uart_close_rpc, UsbUartCloseRpc)
+ADD_SCENE(gpio, i2c_scanner, I2CScanner)
+ADD_SCENE(gpio, i2c_sfp, I2CSfp)
--- a/applications/main/gpio/scenes/gpio_scene_i2c_scanner.c
+++ b/applications/main/gpio/scenes/gpio_scene_i2c_scanner.c
@@ -0,0 +1,36 @@
+#include "../gpio_app_i.h"
+#include <furi_hal_gpio.h>
+
+static I2CScannerState* i2c_scanner_state;
+
+void gpio_scene_i2c_scanner_ok_callback(InputType type, void* context) {
+    furi_assert(context);
+    GpioApp* app = context;
+
+    if(type == InputTypeRelease) {
+        notification_message(app->notifications, &sequence_set_green_255);
+        gpio_i2c_scanner_run_once(i2c_scanner_state);
+        notification_message(app->notifications, &sequence_reset_green);
+        gpio_i2c_scanner_update_state(app->gpio_i2c_scanner, i2c_scanner_state);
+    }
+}
+
+void gpio_scene_i2c_scanner_on_enter(void* context) {
+    GpioApp* app = context;
+    i2c_scanner_state = malloc(sizeof(I2CScannerState));
+
+    gpio_i2c_scanner_set_ok_callback(
+        app->gpio_i2c_scanner, gpio_scene_i2c_scanner_ok_callback, app);
+    view_dispatcher_switch_to_view(app->view_dispatcher, GpioAppViewI2CScanner);
+}
+
+bool gpio_scene_i2c_scanner_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void gpio_scene_i2c_scanner_on_exit(void* context) {
+    UNUSED(context);
+    free(i2c_scanner_state);
+}
--- a/applications/main/gpio/scenes/gpio_scene_i2c_sfp.c
+++ b/applications/main/gpio/scenes/gpio_scene_i2c_sfp.c
@@ -0,0 +1,35 @@
+#include "../gpio_app_i.h"
+#include <furi_hal_gpio.h>
+
+static I2CSfpState* i2c_sfp_state;
+
+void gpio_scene_i2c_sfp_ok_callback(InputType type, void* context) {
+    furi_assert(context);
+    GpioApp* app = context;
+
+    if(type == InputTypeRelease) {
+        notification_message(app->notifications, &sequence_set_green_255);
+        gpio_i2c_sfp_run_once(i2c_sfp_state);
+        notification_message(app->notifications, &sequence_reset_green);
+        gpio_i2c_sfp_update_state(app->gpio_i2c_sfp, i2c_sfp_state);
+    }
+}
+
+void gpio_scene_i2c_sfp_on_enter(void* context) {
+    GpioApp* app = context;
+    i2c_sfp_state = malloc(sizeof(I2CSfpState));
+
+    gpio_i2c_sfp_set_ok_callback(app->gpio_i2c_sfp, gpio_scene_i2c_sfp_ok_callback, app);
+    view_dispatcher_switch_to_view(app->view_dispatcher, GpioAppViewI2CSfp);
+}
+
+bool gpio_scene_i2c_sfp_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void gpio_scene_i2c_sfp_on_exit(void* context) {
+    UNUSED(context);
+    free(i2c_sfp_state);
+}
--- a/applications/main/gpio/scenes/gpio_scene_start.c
+++ b/applications/main/gpio/scenes/gpio_scene_start.c
@@ -1,12 +1,13 @@
 #include "../gpio_app_i.h"
 #include "furi_hal_power.h"
 #include "furi_hal_usb.h"
-#include <dolphin/dolphin.h>

 enum GpioItem {
    GpioItemUsbUart,
    GpioItemTest,
    GpioItemOtg,
+    GpioItemI2CScanner,
+    GpioItemI2CSfp,
 };

 enum GpioOtg {
@@ -27,6 +28,10 @@ static void gpio_scene_start_var_list_enter_callback(void* context, uint32_t ind
        view_dispatcher_send_custom_event(app->view_dispatcher, GpioStartEventManualControl);
    } else if(index == GpioItemUsbUart) {
        view_dispatcher_send_custom_event(app->view_dispatcher, GpioStartEventUsbUart);
+    } else if(index == GpioItemI2CScanner) {
+        view_dispatcher_send_custom_event(app->view_dispatcher, GpioStartEventI2CScanner);
+    } else if(index == GpioItemI2CSfp) {
+        view_dispatcher_send_custom_event(app->view_dispatcher, GpioStartEventI2CSfp);
    }
 }

@@ -68,6 +73,9 @@ void gpio_scene_start_on_enter(void* context) {
        variable_item_set_current_value_text(item, gpio_otg_text[GpioOtgOff]);
    }

+    variable_item_list_add(var_item_list, "I2C-Scanner", 0, NULL, NULL);
+    variable_item_list_add(var_item_list, "I2C-SFP", 0, NULL, NULL);
+
    variable_item_list_set_selected_item(
        var_item_list, scene_manager_get_scene_state(app->scene_manager, GpioSceneStart));

@@ -86,10 +94,15 @@ bool gpio_scene_start_on_event(void* context, SceneManagerEvent event) {
        } else if(event.event == GpioStartEventManualControl) {
            scene_manager_set_scene_state(app->scene_manager, GpioSceneStart, GpioItemTest);
            scene_manager_next_scene(app->scene_manager, GpioSceneTest);
+        } else if(event.event == GpioStartEventI2CScanner) {
+            scene_manager_set_scene_state(app->scene_manager, GpioSceneStart, GpioItemI2CScanner);
+            scene_manager_next_scene(app->scene_manager, GpioSceneI2CScanner);
+        } else if(event.event == GpioStartEventI2CSfp) {
+            scene_manager_set_scene_state(app->scene_manager, GpioSceneStart, GpioItemI2CSfp);
+            scene_manager_next_scene(app->scene_manager, GpioSceneI2CSfp);
        } else if(event.event == GpioStartEventUsbUart) {
            scene_manager_set_scene_state(app->scene_manager, GpioSceneStart, GpioItemUsbUart);
            if(!furi_hal_usb_is_locked()) {
-                DOLPHIN_DEED(DolphinDeedGpioUartBridge);
                scene_manager_next_scene(app->scene_manager, GpioSceneUsbUart);
            } else {
                scene_manager_next_scene(app->scene_manager, GpioSceneUsbUartCloseRpc);
--- a/applications/main/gpio/views/gpio_i2c_scanner.c
+++ b/applications/main/gpio/views/gpio_i2c_scanner.c
@@ -0,0 +1,139 @@
+#include <gui/elements.h>
+#include "gpio_i2c_scanner.h"
+#include "../gpio_item.h"
+
+#include <string.h>
+
+struct GpioI2CScanner {
+    View* view;
+    GpioI2CScannerOkCallback callback;
+    void* context;
+};
+
+typedef struct {
+    uint8_t items;
+    uint8_t responding_address[AVAILABLE_NONRESVERED_I2C_ADDRESSES];
+} GpioI2CScannerModel;
+
+static bool gpio_i2c_scanner_process_ok(GpioI2CScanner* gpio_i2c_scanner, InputEvent* event);
+
+static void gpio_i2c_scanner_draw_callback(Canvas* canvas, void* _model) {
+    GpioI2CScannerModel* model = _model;
+
+    char temp_str[25];
+    elements_button_center(canvas, "Start scan");
+    canvas_draw_line(canvas, 2, 10, 125, 10);
+    canvas_draw_line(canvas, 2, 52, 125, 52);
+
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str(canvas, 2, 9, "I2C-Scanner");
+    canvas_draw_str(canvas, 3, 25, "SDA:");
+    canvas_draw_str(canvas, 3, 42, "SCL:");
+
+    canvas_set_font(canvas, FontSecondary);
+    snprintf(temp_str, 25, "Slaves: %u", model->items);
+    canvas_draw_str_aligned(canvas, 126, 8, AlignRight, AlignBottom, temp_str);
+
+    canvas_draw_str(canvas, 29, 25, "Pin 15");
+    canvas_draw_str(canvas, 29, 42, "Pin 16");
+
+    canvas_set_font(canvas, FontSecondary);
+
+    char temp_str2[6];
+    if(model->items > 0) {
+        snprintf(temp_str, 25, "Addr: ");
+        for(int i = 0; i < model->items; i++) {
+            snprintf(temp_str2, 6, "0x%x ", model->responding_address[i]);
+            strcat(temp_str, temp_str2);
+
+            if(i == 1 || model->items == 1) { //Draw a maximum of two addresses in the first line
+                canvas_draw_str_aligned(canvas, 127, 24, AlignRight, AlignBottom, temp_str);
+                temp_str[0] = '\0';
+            } else if(
+                i == 4 || (model->items - 1 == i &&
+                           i < 6)) { //Draw a maximum of three addresses in the second line
+                canvas_draw_str_aligned(canvas, 127, 36, AlignRight, AlignBottom, temp_str);
+                temp_str[0] = '\0';
+            } else if(i == 7 || model->items - 1 == i) { //Draw a maximum of three addresses in the third line
+                canvas_draw_str_aligned(canvas, 127, 48, AlignRight, AlignBottom, temp_str);
+                break;
+            }
+        }
+    }
+}
+
+static bool gpio_i2c_scanner_input_callback(InputEvent* event, void* context) {
+    furi_assert(context);
+    GpioI2CScanner* gpio_i2c_scanner = context;
+    bool consumed = false;
+
+    if(event->key == InputKeyOk) {
+        consumed = gpio_i2c_scanner_process_ok(gpio_i2c_scanner, event);
+    }
+
+    return consumed;
+}
+
+static bool gpio_i2c_scanner_process_ok(GpioI2CScanner* gpio_i2c_scanner, InputEvent* event) {
+    bool consumed = false;
+    gpio_i2c_scanner->callback(event->type, gpio_i2c_scanner->context);
+
+    return consumed;
+}
+
+GpioI2CScanner* gpio_i2c_scanner_alloc() {
+    GpioI2CScanner* gpio_i2c_scanner = malloc(sizeof(GpioI2CScanner));
+
+    gpio_i2c_scanner->view = view_alloc();
+    view_allocate_model(gpio_i2c_scanner->view, ViewModelTypeLocking, sizeof(GpioI2CScannerModel));
+    view_set_context(gpio_i2c_scanner->view, gpio_i2c_scanner);
+    view_set_draw_callback(gpio_i2c_scanner->view, gpio_i2c_scanner_draw_callback);
+    view_set_input_callback(gpio_i2c_scanner->view, gpio_i2c_scanner_input_callback);
+
+    return gpio_i2c_scanner;
+}
+
+void gpio_i2c_scanner_free(GpioI2CScanner* gpio_i2c_scanner) {
+    furi_assert(gpio_i2c_scanner);
+    view_free(gpio_i2c_scanner->view);
+    free(gpio_i2c_scanner);
+}
+
+View* gpio_i2c_scanner_get_view(GpioI2CScanner* gpio_i2c_scanner) {
+    furi_assert(gpio_i2c_scanner);
+    return gpio_i2c_scanner->view;
+}
+
+void gpio_i2c_scanner_set_ok_callback(
+    GpioI2CScanner* gpio_i2c_scanner,
+    GpioI2CScannerOkCallback callback,
+    void* context) {
+    furi_assert(gpio_i2c_scanner);
+    furi_assert(callback);
+    with_view_model(
+        gpio_i2c_scanner->view,
+		GpioI2CScannerModel * model,
+		{
+            UNUSED(model);
+            gpio_i2c_scanner->callback = callback;
+            gpio_i2c_scanner->context = context;
+        },
+		false);
+}
+
+void gpio_i2c_scanner_update_state(GpioI2CScanner* instance, I2CScannerState* st) {
+    furi_assert(instance);
+    furi_assert(st);
+
+    with_view_model(
+        instance->view,
+		GpioI2CScannerModel * model,
+		{
+            model->items = st->items;
+
+            for(int i = 0; i < model->items; i++) {
+                model->responding_address[i] = st->responding_address[i];
+            }
+        },
+		true);
+}
--- a/applications/main/gpio/views/gpio_i2c_scanner.h
+++ b/applications/main/gpio/views/gpio_i2c_scanner.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <gui/view.h>
+#include "../gpio_i2c_scanner_control.h"
+
+typedef struct GpioI2CScanner GpioI2CScanner;
+typedef void (*GpioI2CScannerOkCallback)(InputType type, void* context);
+
+GpioI2CScanner* gpio_i2c_scanner_alloc();
+
+void gpio_i2c_scanner_free(GpioI2CScanner* gpio_i2c_scanner);
+
+View* gpio_i2c_scanner_get_view(GpioI2CScanner* gpio_i2c_scanner);
+
+void gpio_i2c_scanner_set_ok_callback(
+    GpioI2CScanner* gpio_i2c_scanner,
+    GpioI2CScannerOkCallback callback,
+    void* context);
+
+void gpio_i2c_scanner_update_state(GpioI2CScanner* instance, I2CScannerState* st);
--- a/applications/main/gpio/views/gpio_i2c_sfp.c
+++ b/applications/main/gpio/views/gpio_i2c_sfp.c
@@ -0,0 +1,149 @@
+#include <gui/elements.h>
+#include "gpio_i2c_sfp.h"
+#include "../gpio_item.h"
+
+#include <string.h>
+
+struct GpioI2CSfp {
+    View* view;
+    GpioI2CSfpOkCallback callback;
+    void* context;
+};
+
+typedef struct {
+    char vendor[32];
+    char oui[32];
+    char rev[32];
+    char pn[32];
+    char sn[32];
+    char dc[32];
+    uint8_t type;
+    char connector[32];
+    int wavelength;
+    int sm_reach;
+    int mm_reach_om3;
+    int bitrate;
+} GpioI2CSfpModel;
+
+static bool gpio_i2c_sfp_process_ok(GpioI2CSfp* gpio_i2c_sfp, InputEvent* event);
+
+static void gpio_i2c_sfp_draw_callback(Canvas* canvas, void* _model) {
+    GpioI2CSfpModel* model = _model;
+
+    // Temp String for formatting output
+    char temp_str[280];
+
+    canvas_set_font(canvas, FontSecondary);
+    elements_button_center(canvas, "Read");
+    canvas_draw_str(canvas, 2, 63, "P15 SCL");
+    canvas_draw_str(canvas, 92, 63, "P16 SDA");
+
+    snprintf(temp_str, 280, "Vendor: %s", model->vendor);
+    canvas_draw_str(canvas, 2, 9, temp_str);
+
+    snprintf(temp_str, 280, "PN: %s", model->pn);
+    canvas_draw_str(canvas, 2, 19, temp_str);
+
+    snprintf(temp_str, 280, "SN: %s", model->sn);
+    canvas_draw_str(canvas, 2, 29, temp_str);
+
+    snprintf(temp_str, 280, "REV: %s", model->rev);
+    canvas_draw_str(canvas, 2, 39, temp_str);
+
+    snprintf(temp_str, 280, "CON: %s", model->connector);
+    canvas_draw_str(canvas, 50, 39, temp_str);
+
+    //Print Wavelength of Module
+    snprintf(temp_str, 280, "%u nm", model->wavelength);
+    canvas_draw_str(canvas, 2, 49, temp_str);
+
+    // These values will be zero if not applicable..
+    if(model->sm_reach != 0) {
+        snprintf(temp_str, 280, "%u km (SM)", model->sm_reach);
+        canvas_draw_str(canvas, 50, 49, temp_str);
+    }
+    if(model->mm_reach_om3 != 0) {
+        snprintf(temp_str, 280, "%u m (MM OM3)", model->mm_reach_om3);
+        canvas_draw_str(canvas, 50, 49, temp_str);
+    }
+}
+
+static bool gpio_i2c_sfp_input_callback(InputEvent* event, void* context) {
+    furi_assert(context);
+    GpioI2CSfp* gpio_i2c_sfp = context;
+    bool consumed = false;
+
+    if(event->key == InputKeyOk) {
+        consumed = gpio_i2c_sfp_process_ok(gpio_i2c_sfp, event);
+    }
+
+    return consumed;
+}
+
+static bool gpio_i2c_sfp_process_ok(GpioI2CSfp* gpio_i2c_sfp, InputEvent* event) {
+    bool consumed = false;
+    gpio_i2c_sfp->callback(event->type, gpio_i2c_sfp->context);
+
+    return consumed;
+}
+
+GpioI2CSfp* gpio_i2c_sfp_alloc() {
+    GpioI2CSfp* gpio_i2c_sfp = malloc(sizeof(GpioI2CSfp));
+
+    gpio_i2c_sfp->view = view_alloc();
+    view_allocate_model(gpio_i2c_sfp->view, ViewModelTypeLocking, sizeof(GpioI2CSfpModel));
+    view_set_context(gpio_i2c_sfp->view, gpio_i2c_sfp);
+    view_set_draw_callback(gpio_i2c_sfp->view, gpio_i2c_sfp_draw_callback);
+    view_set_input_callback(gpio_i2c_sfp->view, gpio_i2c_sfp_input_callback);
+
+    return gpio_i2c_sfp;
+}
+
+void gpio_i2c_sfp_free(GpioI2CSfp* gpio_i2c_sfp) {
+    furi_assert(gpio_i2c_sfp);
+    view_free(gpio_i2c_sfp->view);
+    free(gpio_i2c_sfp);
+}
+
+View* gpio_i2c_sfp_get_view(GpioI2CSfp* gpio_i2c_sfp) {
+    furi_assert(gpio_i2c_sfp);
+    return gpio_i2c_sfp->view;
+}
+
+void gpio_i2c_sfp_set_ok_callback(
+    GpioI2CSfp* gpio_i2c_sfp,
+    GpioI2CSfpOkCallback callback,
+    void* context) {
+    furi_assert(gpio_i2c_sfp);
+    furi_assert(callback);
+    with_view_model(
+        gpio_i2c_sfp->view,
+		GpioI2CSfpModel * model,
+		{
+            UNUSED(model);
+            gpio_i2c_sfp->callback = callback;
+            gpio_i2c_sfp->context = context;
+        },
+		false);
+}
+
+void gpio_i2c_sfp_update_state(GpioI2CSfp* instance, I2CSfpState* st) {
+    furi_assert(instance);
+    furi_assert(st);
+
+    with_view_model(
+        instance->view,
+		GpioI2CSfpModel * model,
+		{
+            // Insert values into model...
+            strcpy(model->vendor, st->vendor);
+            strcpy(model->pn, st->pn);
+            strcpy(model->sn, st->sn);
+            strcpy(model->rev, st->rev);
+            strcpy(model->connector, st->connector);
+            model->wavelength = st->wavelength;
+            model->sm_reach = st->sm_reach;
+            model->mm_reach_om3 = st->mm_reach_om3;
+        },
+		true);
+}
--- a/applications/main/gpio/views/gpio_i2c_sfp.h
+++ b/applications/main/gpio/views/gpio_i2c_sfp.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <gui/view.h>
+#include "../gpio_i2c_sfp_control.h"
+
+typedef struct GpioI2CSfp GpioI2CSfp;
+typedef void (*GpioI2CSfpOkCallback)(InputType type, void* context);
+
+GpioI2CSfp* gpio_i2c_sfp_alloc();
+
+void gpio_i2c_sfp_free(GpioI2CSfp* gpio_i2c_sfp);
+
+View* gpio_i2c_sfp_get_view(GpioI2CSfp* gpio_i2c_sfp);
+
+void gpio_i2c_sfp_set_ok_callback(
+    GpioI2CSfp* gpio_i2c_sfp,
+    GpioI2CSfpOkCallback callback,
+    void* context);
+
+void gpio_i2c_sfp_update_state(GpioI2CSfp* instance, I2CSfpState* st);