feat: export as raw elf and allow 4 player support with GPIO

libs/hw---rpi-raw-elf/config.ts

@@ -0,0 +1,5 @@
+
+namespace config {
+    export const DISPLAY_WIDTH = 160;
+    export const DISPLAY_HEIGHT = 120;
+}

libs/hw---rpi-raw-elf/device.d.ts

@@ -0,0 +1,7 @@
+declare namespace input {
+}
+
+declare namespace control {
+    //% shim=control::programList
+    function programList() : string[];
+}

libs/hw---rpi-raw-elf/enums.d.ts

@@ -0,0 +1,37 @@
+// Auto-generated. Do not edit.
+
+
+    declare const enum Key {
+    LEFT = 1,
+    UP = 2,
+    RIGHT = 3,
+    DOWN = 4,
+    A = 5,
+    B = 6,
+    MENU = 7,
+    LEFT2 = 8,
+    UP2 = 9,
+    RIGHT2 = 10,
+    DOWN2 = 11,
+    A2 = 12,
+    B2 = 13,
+    MENU2 = 14,
+    LEFT3 = 15,
+    UP3 = 16,
+    RIGHT3 = 17,
+    DOWN3 = 18,
+    A3 = 19,
+    B3 = 20,
+    MENU3 = 21,
+    LEFT4 = 22,
+    UP4 = 23,
+    RIGHT4 = 24,
+    DOWN4 = 25,
+    A4 = 26,
+    B4 = 27,
+    MENU4 = 28,
+    RESET = 29,
+    EXIT = 30,
+    }
+
+// Auto-generated. Do not edit. Really.

libs/hw---rpi-raw-elf/gamesel.cpp

@@ -0,0 +1,60 @@
+#include "pxt.h"
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <unistd.h>
+
+namespace control {
+
+
+//%
+RefCollection *programList() {
+    DIR *d = opendir(PROGDIR);
+    auto res = Array_::mk();
+    registerGCObj(res);
+    for (;;) {
+        struct dirent *ent = readdir(d);
+        if (!ent)
+            break;
+        int len = strlen(ent->d_name);
+        if (len <= 4)
+            continue;
+        if (strcmp(ent->d_name + len - 4, ".elf") != 0)
+            continue;
+        ent->d_name[len - 4] = 0; // chop extension
+        //DMESG("add: '%s'", ent->d_name);
+        auto tmp = (TValue)mkString(ent->d_name, -1);
+        registerGCPtr(tmp);
+        res->head.push(tmp);
+        unregisterGCPtr(tmp);
+    }
+    closedir(d);
+    unregisterGCObj(res);
+    return res;
+}
+
+/** Run specified user program. */
+//%
+void runProgram(String prog) {
+    char *p;
+    asprintf(&p, "%s/%s.elf", PROGDIR, prog->getUTF8Data());
+    initialArgv = new char*[3];
+    initialArgv[0] = p;
+    initialArgv[1] = (char*)"--run";
+    initialArgv[2] = 0;
+    target_reset();
+}
+
+/**
+ * Deletes a user program
+ */
+//%
+void deleteProgram(String prog) {
+    char *p;
+    asprintf(&p, "%s/%s.elf", PROGDIR, prog->getUTF8Data());
+    unlink(p);
+}
+
+} // namespace control

libs/hw---rpi-raw-elf/gdb.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+USB=`ls /dev/cu.usbmodem*`
+
+arm-linux-gnueabihf-gdb \
+	--eval "dir built/dockermake" \
+	--eval "symbol-file built/dockermake/bld/pxt-app.full" \
+	--eval "target extended-remote $USB" \
+	--eval "set remote exec-file /sd/prj/pxt.elf"