Add file listing and delete apis

docs/fll.md

@@ -89,11 +89,18 @@ Sharing programs is also shown in the [Tips and Tricks](https://legoeducation.vi
 
 ### Why can't I delete my program (*.uf2) files from the Brick?
 
-There's a bug in the firmware which prevents you from deleting the programs (``*.uf2`` files) from your EV3 Brick. There isn't a firmware update to fix this yet.
+There's a bug in the firmware which prevents you from deleting the programs (``*.uf2`` files) from your EV3 Brick. There isn't a firmware update to fix this yet. As a workaround, you can temporarily downgrade your firmware version, delete the files, and then upgrade back to the version that works with MakeCode.
 
-We have prepared a special program that lets you delete UF2 files from the brick.
-Download [these PDF instructions](/file-manager.pdf) and drop the PDF on the brick drive.
-This will present you with an menu for deleting files.
+Follow these steps to downgrade your firmware version, delete the files, and uprgade back again:
+
+1. Go into **EV3 LabVIEW** - if it's not installed get it [here](https://education.lego.com/en-us/downloads/mindstorms-ev3/software)
+2. Plug in your EV3 Brick and start a new project
+3. Go to the **Tools** menu in the upper right corner, select **Firmware Update**
+4. In the **Firmware Update** dialog box, click on the **Show Details** button
+5. From the **Available Firmware Files** list, select **EV3 Firmware V1.09E**
+6. Click the **Update Firmware** button and wait for the update to complete
+
+Now the firmware version on the EV3 Brick will be **V1.09E**. Also, in the process, the downgrade deleted all of the saved programs from the EV3 Brick. To continue to use MakeCode, the firmware version must be at **V1.10E** or above. So, the Brick firmware needs to be upgraded again. If you don't know or do remember how to do this, see the **Upgrade your @drivename@** section in the [troubleshooting](/troubleshoot) page.
 
 For other common questions, try the FAQ page https://makecode.mindstorms.com/faq.
 

docs/reference/brick/battery-property.md

@@ -1,47 +0,0 @@
-# battery Property
-
-Return the information about the battery
-
-```sig
-brick.batteryInfo(BatteryProperty.Level)
-```
-
-## Parameters
-
-* property: the kind of information
-
-## Returns
-
-* a [number](/types/number) which represents the value of the property requested.
-
-## Example
-
-Show the battery level percentage on the screen. Also, show a green light if the battery level is above 15%. If the battery level is below 15% but above 5%, show a orange light. But, if the battery level is below 5%, show a pulsing red light.
-
-```blocks
-let battery = 0;
-forever(function() {
-    brick.showString("Battery level:", 1)
-    brick.showNumber(battery, 2)
-    battery = brick.batteryInfo(BatteryProperty.Level);
-    if (battery > 15)
-    {
-        brick.setStatusLight(StatusLight.Green);
-    } else if (battery > 5) {
-        brick.setStatusLight(StatusLight.Orange);
-    } else {
-        brick.setStatusLight(StatusLight.RedPulse)
-    }
-    pause(30000)
-})
-```
-
-Or see all the values
-
-```blocks
-forever(function () {
-    brick.showValue("bat V", brick.batteryInfo(BatteryProperty.Voltage), 1)
-    brick.showValue("bat %", brick.batteryInfo(BatteryProperty.Level), 2)
-    brick.showValue("bat I", brick.batteryInfo(BatteryProperty.Current), 3)
-})
-```

editor/deploy.ts

@@ -63,7 +63,9 @@ const rbfTemplate = `
 export function deployCoreAsync(resp: pxtc.CompileResult) {
     let w: pxt.editor.Ev3Wrapper
 
-    let filename = resp.downloadFileBaseName || "pxt"
+    const origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(ts.pxtc.decodeBase64(resp.outfiles[pxt.outputName()])))
+    
+    let filename = resp.downloadFileBaseName || (origElfUF2[0].filename || "").replace(/^Projects\//, "").replace(/\.elf$/, "") || "pxt"
     filename = filename.replace(/^lego-/, "")
 
     let fspath = "../prjs/BrkProg_SAVE/"
@@ -77,8 +79,6 @@ export function deployCoreAsync(resp: pxtc.CompileResult) {
     let rbfBIN = pxt.U.fromHex(rbfHex)
     pxt.HF2.write16(rbfBIN, 4, rbfBIN.length)
 
-    let origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(ts.pxtc.decodeBase64(resp.outfiles[pxt.outputName()])))
-
     let mkFile = (ext: string, data: Uint8Array = null) => {
         let f = UF2.newBlockFile()
         f.filename = "Projects/" + filename + ext

libs/core/battery.ts

@@ -1,40 +1,13 @@
 
-const enum BatteryProperty {
-    //% level (%)
-    Level,
-    //% block="current (I)"
-    Current,
-    //% block="voltage (V)"
-    Voltage
-} 
-
 namespace brick {
     /**
      * Returns the current battery level
      */
     //% blockId=brickBatteryLevel block="battery level"
-    //% group="Battery"
+    //% group="More"
     //% help=brick/battery-level
-    //% deprecated blockHidden=1
     export function batteryLevel(): number {
         const info = sensors.internal.getBatteryInfo();
-        return info.level;
-    }
-
-    /**
-     * Returns information about the battery
-     */
-    //% blockId=brickBatteryProperty block="battery %property"
-    //% group="Battery"
-    //% help=brick/battery-property
-    export function batteryInfo(property: BatteryProperty): number {
-        const info = sensors.internal.getBatteryInfo();
-        switch(property) {
-            case BatteryProperty.Level: return info.level;
-            case BatteryProperty.Current: return info.Ibatt;
-            case BatteryProperty.Voltage: return info.Vbatt;
-            default: return 0;
-        }
-
+        return info.current;
     }
 }

libs/core/input.ts

@@ -36,17 +36,8 @@ namespace sensors.internal {
     let analogMM: MMap
     let uartMM: MMap
     let IICMM: MMap
-    let powerMM: MMap
     let devcon: Buffer
-    let sensorInfos: SensorInfo[];
-
-    let batteryInfo: {
-        CinCnt: number;
-        CoutCnt: number;
-        VinCnt: number;
-    };
-    let batteryVMin: number;
-    let batteryVMax: number;
+    let sensorInfos: SensorInfo[]
 
     class SensorInfo {
         port: number
@@ -80,13 +71,10 @@ namespace sensors.internal {
         IICMM = control.mmap("/dev/lms_iic", IICOff.Size, 0)
         if (!IICMM) control.fail("no iic sensor")
 
-        powerMM = control.mmap("/dev/lms_power", 2, 0)
-
-        unsafePollForChanges(500,
-            () => { return hashDevices(); },
-            (prev, curr) => {
-                detectDevices();
-            });
+        unsafePollForChanges(500, 
+            () => { return hashDevices(); }, 
+            (prev, curr) => { detectDevices(); 
+        });
         sensorInfos.forEach(info => {
             unsafePollForChanges(50, () => {
                 if (info.sensor) return info.sensor._query()
@@ -94,8 +82,9 @@ namespace sensors.internal {
             }, (prev, curr) => {
                 if (info.sensor) info.sensor._update(prev, curr)
             })
-        })        
-   }
+        })
+
+    }
 
     export function getActiveSensors(): Sensor[] {
         init();
@@ -121,130 +110,18 @@ namespace sensors.internal {
         return manufacturer + sensorType;
     }
 
-    const ADC_REF = 5000                  //!< [mV]  maximal value on ADC
-    const ADC_RES = 4095                  //!< [CNT] maximal count on ADC
-    // see c_ui.c
-    const SHUNT_IN = 0.11              //  [Ohm]
-    const AMP_CIN = 22.0              //  [Times]
-
-    const EP2_SHUNT_IN = 0.05              //  [Ohm]
-    const EP2_AMP_CIN = 15.0              //  [Times]
-
-    const SHUNT_OUT = 0.055             //  [Ohm]
-    const AMP_COUT = 19.0              //  [Times]
-
-    const VCE = 0.05              //  [V]
-    const AMP_VIN = 0.5               //  [Times]
-
-    const AVR_CIN = 300
-    const AVR_COUT = 30
-    const AVR_VIN = 30
-    // lms2012
-    const BATT_INDICATOR_HIGH = 7500          //!< Battery indicator high [mV]
-    const BATT_INDICATOR_LOW = 6200          //!< Battery indicator low [mV]
-    const ACCU_INDICATOR_HIGH = 7500          //!< Rechargeable battery indicator high [mV]
-    const ACCU_INDICATOR_LOW = 7100          //!< Rechargeable battery indicator low [mV]    
-
-    function CNT_V(C: number) {
-        return ((C * ADC_REF) / (ADC_RES * 1000.0))
-    }
-
-    function updateBatteryInfo() {
-        let CinCnt = analogMM.getNumber(NumberFormat.Int16LE, AnalogOff.BatteryCurrent);
-        let CoutCnt = analogMM.getNumber(NumberFormat.Int16LE, AnalogOff.MotorCurrent);
-        let VinCnt = analogMM.getNumber(NumberFormat.Int16LE, AnalogOff.Cell123456);
-        if (!batteryInfo) {
-            batteryVMin = BATT_INDICATOR_LOW;
-            batteryVMax = BATT_INDICATOR_HIGH;
-            if (powerMM) {
-                const accu = powerMM.getNumber(NumberFormat.UInt8LE, 0);
-                if (accu > 0) {
-                    control.dmesg("rechargeable battery")
-                    batteryVMin = ACCU_INDICATOR_LOW;
-                    batteryVMax = ACCU_INDICATOR_HIGH;
-                }
-            }
-            batteryInfo = { 
-                CinCnt: CinCnt, 
-                CoutCnt: CoutCnt,
-                VinCnt: VinCnt
-            };
-            // update in background
-            control.runInParallel(() => forever(updateBatteryInfo)); 
-        } else {
-            CinCnt = batteryInfo.CinCnt = ((batteryInfo.CinCnt * (AVR_CIN - 1)) + CinCnt) / AVR_CIN;
-            CoutCnt = batteryInfo.CoutCnt = ((batteryInfo.CoutCnt * (AVR_COUT - 1)) + CoutCnt) / AVR_COUT;
-            VinCnt = batteryInfo.VinCnt = ((batteryInfo.VinCnt * (AVR_VIN - 1)) + VinCnt) / AVR_VIN;
-        }
-    }
-
-    export function getBatteryInfo(): { 
-        level: number; 
-        Ibatt: number, 
-        Vbatt: number, 
-        Imotor: number 
-    } {
+    export function getBatteryInfo(): { temp: number; current: number } {
         init();
-        if (!batteryInfo) updateBatteryInfo();
-        const CinCnt = batteryInfo.CinCnt;
-        const CoutCnt = batteryInfo.CoutCnt;
-        const VinCnt = batteryInfo.VinCnt;
-        /*
-void      cUiUpdatePower(void)
-{
-#ifndef Linux_X86
-  DATAF   CinV;
-  DATAF   CoutV;
-
-  if ((UiInstance.Hw == FINAL) || (UiInstance.Hw == FINALB))
-  {
-    CinV                =  CNT_V(UiInstance.CinCnt) / AMP_CIN;
-    UiInstance.Vbatt    =  (CNT_V(UiInstance.VinCnt) / AMP_VIN) + CinV + VCE;
-
-    UiInstance.Ibatt    =  CinV / SHUNT_IN;
-    CoutV               =  CNT_V(UiInstance.CoutCnt) / AMP_COUT;
-    UiInstance.Imotor   =  CoutV / SHUNT_OUT;
-
-  }
-  else
-  {
-    CinV                =  CNT_V(UiInstance.CinCnt) / EP2_AMP_CIN;
-    UiInstance.Vbatt    =  (CNT_V(UiInstance.VinCnt) / AMP_VIN) + CinV + VCE;
-
-    UiInstance.Ibatt    =  CinV / EP2_SHUNT_IN;
-    UiInstance.Imotor   =  0;
-
-  }
-
-#endif
-#ifdef DEBUG_TEMP_SHUTDOWN
-
-  UiInstance.Vbatt  =  7.0;
-  UiInstance.Ibatt  =  5.0;
-
-#endif
-}        
-        */
-       const CinV = CNT_V(CinCnt) / AMP_CIN;
-       const Vbatt = CNT_V(VinCnt) / AMP_VIN + CinV + VCE;
-       const Ibatt = CinV / SHUNT_IN;
-       const CoutV = CNT_V(CoutCnt) / AMP_COUT;
-       const Imotor = CoutV / SHUNT_OUT;
-       const level   = Math.max(0, Math.min(100, Math.floor((Vbatt * 1000.0 - batteryVMin)
-        / (batteryVMax - batteryVMin) * 100)));
-
         return {
-            level: level,
-            Vbatt: Vbatt,
-            Ibatt: Ibatt,
-            Imotor: Imotor
-        };
+            temp: analogMM.getNumber(NumberFormat.Int16LE, AnalogOff.BatteryTemp),
+            current: Math.round(analogMM.getNumber(NumberFormat.Int16LE, AnalogOff.BatteryCurrent) / 10)
+        }
     }
 
     function hashDevices(): number {
         const conns = analogMM.slice(AnalogOff.InConn, DAL.NUM_INPUTS)
         let r = 0;
-        for (let i = 0; i < conns.length; ++i) {
+        for(let i = 0; i < conns.length; ++i) {
             r = (r << 8 | conns[i]);
         }
         return r;

libs/core/linux.cpp

@@ -23,6 +23,10 @@
 #define MALLOC_LIMIT (8 * 1024 * 1024)
 #define MALLOC_CHECK_PERIOD (1024 * 1024)
 
+namespace Array_ {
+RefCollection *mk(unsigned flags);
+}
+
 void *xmalloc(size_t sz) {
     static size_t allocBytes = 0;
     allocBytes += sz;
@@ -476,7 +480,7 @@ void stopLMS() {
         if (!pid)
             continue;
         char namebuf[100];
-        snprintf(namebuf, 1000, "/proc/%d/cmdline", pid);
+        snprintf(namebuf, 100, "/proc/%d/cmdline", pid);
         FILE *f = fopen(namebuf, "r");
         if (f) {
             fread(namebuf, 1, 99, f);
@@ -590,4 +594,66 @@ void dmesg(const char *format, ...) {
     fflush(dmesgFile);
     fdatasync(fileno(dmesgFile));
 }
+
+const char *progPath = "/mnt/ramdisk/prjs/BrkProg_SAVE";
+
+//%
+void deleteAllPrograms() {
+    char buf[1024];
+
+    struct dirent *ent;
+    DIR *dir;
+
+    dir = opendir(progPath);
+    if (dir == NULL)
+        return;
+
+    while ((ent = readdir(dir)) != NULL) {
+        if (ent->d_name[0] == '.')
+            continue;
+        snprintf(buf, sizeof(buf), "%s/%s", progPath, ent->d_name);
+        DMESG("FN: %s", ent->d_name);
+        // unlink(buf);
+    }
+
+    closedir(dir);
+}
+
+
+//%
+void deletePrjFile(String filename) {
+    if (strlen(filename->data) > 500 || strchr(filename->data, '/'))
+        return;
+    char buf[1024];
+    snprintf(buf, sizeof(buf), "%s/%s", progPath, filename->data);
+    unlink(buf);
+}
+
+//%
+RefCollection *listPrjFiles() {
+    auto res = Array_::mk(0);
+    //registerGCObj(res);
+
+    auto dp = opendir(progPath);
+
+    for (;;) {
+        dirent *ep = dp ? readdir(dp) : NULL;
+        if (!ep)
+            break;
+        if (ep->d_name[0] == '.')
+            continue;
+        auto str = mkString(ep->d_name, -1);
+        //registerGCObj(str);
+        res->push((TValue)str);
+        //unregisterGCObj(str);
+    }
+    if (dp)
+        closedir(dp);
+    //unregisterGCObj(res);
+
+    return res;
+}
+
+
+
 } // namespace pxt

libs/ev3/ns.ts

@@ -1,6 +1,6 @@
 
 //% color="#68C3E2" weight=100 icon="\uf106"
-//% groups='["Buttons", "Screen", "Battery"]'
+//% groups='["Buttons", "Screen"]'
 //% labelLineWidth=60
 namespace brick {
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pxt-ev3",
-  "version": "1.1.18",
+  "version": "1.1.17",
   "description": "LEGO MINDSTORMS EV3 for Microsoft MakeCode",
   "private": false,
   "keywords": [