JS: added GPIO module

applications/system/js_app/application.fam

@@ -94,6 +94,7 @@ App(
     requires=["js_app"],
     sources=["modules/js_keyboard.c"],
 )
+
 App(
     appid="js_subghz",
     apptype=FlipperAppType.PLUGIN,
@@ -101,3 +102,11 @@ App(
     requires=["js_app"],
     sources=["modules/js_subghz/*.c"],
 )
+
+App(
+    appid="js_gpio",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="js_gpio_ep",
+    requires=["js_app"],
+    sources=["modules/js_gpio.c"],
+)

applications/system/js_app/examples/apps/Scripts/gpio.js

@@ -0,0 +1,62 @@
+let gpio = require("gpio");
+
+// initialize pins
+gpio.init("PC3", "outputPushPull", "up"); // pin, mode, pull
+print("PC3 is initialized as outputPushPull with pull-up");
+
+gpio.init("PC1", "input", "down"); // pin, mode, pull
+print("PC1 is initialized as input with pull-down");
+
+// let led on PC3 blink
+gpio.write("PC3", true); // high
+delay(1000);
+gpio.write("PC3", false); // low
+delay(1000);
+gpio.write("PC3", true);  // high
+delay(1000);
+gpio.write("PC3", false); // low
+
+// read value from PC1 and write it to PC3
+while (true) {
+    let value = gpio.read("PC1");
+    gpio.write("PC3", value);
+
+    value ? print("PC1 is high") : print("PC1 is low");
+
+    delay(100);
+}
+
+
+// possible pins https://docs.flipper.net/gpio-and-modules#miFsS
+// "PA7" aka 2
+// "PA6" aka 3
+// "PA4" aka 4
+// "PB3" aka 5
+// "PB2" aka 6
+// "PC3" aka 7
+// "PA14" aka 10
+// "PA13" aka 12
+// "PB6" aka 13
+// "PB7" aka 14
+// "PC1" aka 15
+// "PC0" aka 16
+// "PB14" aka 17
+
+// possible modes
+// "input"
+// "outputPushPull"
+// "outputOpenDrain"
+// "altFunctionPushPull"
+// "altFunctionOpenDrain"
+// "analog"
+// "interruptRise"
+// "interruptFall"
+// "interruptRiseFall"
+// "eventRise"
+// "eventFall"
+// "eventRiseFall"
+
+// possible pull
+// "no"
+// "up"
+// "down"

applications/system/js_app/modules/js_gpio.c

@@ -0,0 +1,237 @@
+#include "../js_modules.h"
+#include <furi_hal_gpio.h>
+#include <furi_hal_resources.h>
+
+typedef struct {
+    const GpioPin* pin;
+    const char* name;
+} GpioPinCtx;
+
+static const GpioPinCtx js_gpio_pins[] = {
+    {.pin = &gpio_ext_pa7, .name = "PA7"}, // 2
+    {.pin = &gpio_ext_pa6, .name = "PA6"}, // 3
+    {.pin = &gpio_ext_pa4, .name = "PA4"}, // 4
+    {.pin = &gpio_ext_pb3, .name = "PB3"}, // 5
+    {.pin = &gpio_ext_pb2, .name = "PB2"}, // 6
+    {.pin = &gpio_ext_pc3, .name = "PC3"}, // 7
+    {.pin = &gpio_swclk, .name = "PA14"}, // 10
+    {.pin = &gpio_swdio, .name = "PA13"}, // 12
+    {.pin = &gpio_usart_tx, .name = "PB6"}, // 13
+    {.pin = &gpio_usart_rx, .name = "PB7"}, // 14
+    {.pin = &gpio_ext_pc1, .name = "PC1"}, // 15
+    {.pin = &gpio_ext_pc0, .name = "PC0"}, // 16
+    {.pin = &gpio_ibutton, .name = "PB14"}, // 17
+};
+
+GpioPull js_gpio_get_gpio_pull(const char* pull) {
+    if(strcmp(pull, "no") == 0) {
+        return GpioPullNo;
+    } else if(strcmp(pull, "up") == 0) {
+        return GpioPullUp;
+    } else if(strcmp(pull, "down") == 0) {
+        return GpioPullDown;
+    } else {
+        return GpioPullNo;
+    }
+}
+
+GpioMode js_gpio_get_gpio_mode(const char* mode) {
+    if(strcmp(mode, "input") == 0) {
+        return GpioModeInput;
+    } else if(strcmp(mode, "outputPushPull") == 0) {
+        return GpioModeOutputPushPull;
+    } else if(strcmp(mode, "outputOpenDrain") == 0) {
+        return GpioModeOutputOpenDrain;
+    } else if(strcmp(mode, "altFunctionPushPull") == 0) {
+        return GpioModeAltFunctionPushPull;
+    } else if(strcmp(mode, "altFunctionOpenDrain") == 0) {
+        return GpioModeAltFunctionOpenDrain;
+    } else if(strcmp(mode, "analog") == 0) {
+        return GpioModeAnalog;
+    } else if(strcmp(mode, "interruptRise") == 0) {
+        return GpioModeInterruptRise;
+    } else if(strcmp(mode, "interruptFall") == 0) {
+        return GpioModeInterruptFall;
+    } else if(strcmp(mode, "interruptRiseFall") == 0) {
+        return GpioModeInterruptRiseFall;
+    } else if(strcmp(mode, "eventRise") == 0) {
+        return GpioModeEventRise;
+    } else if(strcmp(mode, "eventFall") == 0) {
+        return GpioModeEventFall;
+    } else if(strcmp(mode, "eventRiseFall") == 0) {
+        return GpioModeEventRiseFall;
+    } else {
+        return GpioModeInput;
+    }
+}
+
+const GpioPin* js_gpio_get_gpio_pin(const char* name) {
+    for(int i = 0; i < 12; i++) {
+        if(strcmp(js_gpio_pins[i].name, name) == 0) {
+            return js_gpio_pins[i].pin;
+        }
+    }
+    return NULL;
+}
+
+static void js_gpio_init(struct mjs* mjs) {
+    mjs_val_t pin_arg = mjs_arg(mjs, 0);
+    mjs_val_t mode_arg = mjs_arg(mjs, 1);
+    mjs_val_t pull_arg = mjs_arg(mjs, 2);
+
+    if(!mjs_is_string(pin_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a string");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const char* pin_name = mjs_get_string(mjs, &pin_arg, NULL);
+    if(!pin_name) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Failed to get pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    if(!mjs_is_string(mode_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a string");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const char* mode_name = mjs_get_string(mjs, &mode_arg, NULL);
+    if(!mode_name) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Failed to get mode name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    if(!mjs_is_string(pull_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a string");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const char* pull_name = mjs_get_string(mjs, &pull_arg, NULL);
+    if(!pull_name) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Failed to get pull name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const GpioPin* gpio_pin = js_gpio_get_gpio_pin(pin_name);
+    const GpioMode gpio_mode = js_gpio_get_gpio_mode(mode_name);
+    const GpioPull gpio_pull = js_gpio_get_gpio_pull(pull_name);
+
+    if(gpio_pin == NULL) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Invalid pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    furi_hal_gpio_init(gpio_pin, gpio_mode, gpio_pull, GpioSpeedVeryHigh);
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_gpio_write(struct mjs* mjs) {
+    mjs_val_t pin_arg = mjs_arg(mjs, 0);
+    mjs_val_t value_arg = mjs_arg(mjs, 1);
+
+    if(!mjs_is_string(pin_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a string");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const char* pin_name = mjs_get_string(mjs, &pin_arg, NULL);
+    if(!pin_name) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Failed to get pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    if(!mjs_is_boolean(value_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a boolean");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    bool value = mjs_get_bool(mjs, value_arg);
+
+    const GpioPin* gpio_pin = js_gpio_get_gpio_pin(pin_name);
+
+    if(gpio_pin == NULL) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Invalid pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    furi_hal_gpio_write(gpio_pin, value);
+
+    mjs_return(mjs, MJS_UNDEFINED);
+}
+
+static void js_gpio_read(struct mjs* mjs) {
+    mjs_val_t pin_arg = mjs_arg(mjs, 0);
+
+    if(!mjs_is_string(pin_arg)) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Argument must be a string");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const char* pin_name = mjs_get_string(mjs, &pin_arg, NULL);
+    if(!pin_name) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Failed to get pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    const GpioPin* gpio_pin = js_gpio_get_gpio_pin(pin_name);
+
+    if(gpio_pin == NULL) {
+        mjs_prepend_errorf(mjs, MJS_BAD_ARGS_ERROR, "Invalid pin name");
+        mjs_return(mjs, MJS_UNDEFINED);
+        return;
+    }
+
+    bool value = furi_hal_gpio_read(gpio_pin);
+
+    mjs_return(mjs, mjs_mk_boolean(mjs, value));
+}
+
+static void* js_gpio_create(struct mjs* mjs, mjs_val_t* object) {
+    mjs_val_t gpio_obj = mjs_mk_object(mjs);
+    mjs_set(mjs, gpio_obj, "init", ~0, MJS_MK_FN(js_gpio_init));
+    mjs_set(mjs, gpio_obj, "write", ~0, MJS_MK_FN(js_gpio_write));
+    mjs_set(mjs, gpio_obj, "read", ~0, MJS_MK_FN(js_gpio_read));
+    *object = gpio_obj;
+
+    return (void*)1;
+}
+
+static void js_gpio_destroy(void* inst) {
+    UNUSED(inst);
+
+    // loop through all pins and reset them to analog mode
+    for(int i = 0; i < 12; i++) {
+        furi_hal_gpio_write(js_gpio_pins[i].pin, false);
+        furi_hal_gpio_init(js_gpio_pins[i].pin, GpioModeAnalog, GpioPullNo, GpioSpeedVeryHigh);
+    }
+}
+
+static const JsModuleDescriptor js_gpio_desc = {
+    "gpio",
+    js_gpio_create,
+    js_gpio_destroy,
+};
+
+static const FlipperAppPluginDescriptor plugin_descriptor = {
+    .appid = PLUGIN_APP_ID,
+    .ep_api_version = PLUGIN_API_VERSION,
+    .entry_point = &js_gpio_desc,
+};
+
+const FlipperAppPluginDescriptor* js_gpio_ep(void) {
+    return &plugin_descriptor;
+}