VGA/MultitaskingCPM/MultitaskingCPM.ino

Multitasking - Multisession CP/M 3 compatible system. Supports directories and FAT32 file system with SD Cards.

/*
  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - <http://www.fabgl.com>
  Copyright (c) 2019-2022 Fabrizio Di Vittorio.
  All rights reserved.
 
 
* Please contact fdivitto2013@gmail.com if you need a commercial license.
 
 
* This library and related software is available under GPL v3.
 
  FabGL is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  FabGL is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with FabGL.  If not, see <http://www.gnu.org/licenses/>.
 */
 
/*
 * Optional SD Card connections:
 *   MISO => GPIO 16  (2 for PICO-D4)
 *   MOSI => GPIO 17  (12 for PICO-D4)
 *   CLK  => GPIO 14
 *   CS   => GPIO 13
 *
 * To change above assignment fill other paramaters of FileBrowser::mountSDCard().
 */
 
 
 
 
 
#include "fabgl.h"
#include "src/supervisor.h"
#include "src/programs.h"
 
 
 
// Flash and SDCard configuration
#define FORMAT_ON_FAIL     true
#define SPIFFS_MOUNT_PATH  "/flash"
#define SDCARD_MOUNT_PATH  "/SD"
#define MAXFILES           6     // SDCARD: each file takes about 4K of RAM! On ESP32 2.0.0 this may fail without PSRAM, so set to "4"
 
 
 
// globals
 
//fabgl::VGA16Controller   DisplayController; // unsupported on ESP32 core 2.0.0!!
fabgl::VGATextController DisplayController;
fabgl::PS2Controller     PS2Controller;
 
Supervisor supervisor(&DisplayController);
 
 
 
// base path (can be SPIFFS_MOUNT_PATH or SDCARD_MOUNT_PATH depending from what was successfully mounted first)
char const * basepath = nullptr;
 
 
String driveA_path;
String driveB_path;
 
 
 
void setup()
{
  //Serial.begin(115200); delay(500); Serial.write("\r\nReset\r\n");
 
  disableCore0WDT();
  disableCore1WDT();
 
  // Reduces some defaults to save RAM...
  fabgl::VGAController::queueSize                    = 128;
  fabgl::Terminal::inputQueueSize                    = 32;
  fabgl::Terminal::inputConsumerTaskStackSize        = 1300;
  fabgl::Terminal::keyboardReaderTaskStackSize       = 800;
  fabgl::Keyboard::scancodeToVirtualKeyTaskStackSize = 1500;
 
  // because mouse is optional, don't re-try if it is not found (to speed-up boot)
  fabgl::Mouse::quickCheckHardware();
 
  // keyboard configured on port 0, and optionally mouse on port 1
  PS2Controller.begin(PS2Preset::KeyboardPort0_MousePort1);
 
  // setup VGA (default configuration with 64 colors)
 
  DisplayController.begin();
  DisplayController.setResolution(VGA_640x480_60Hz);      // good when using VGA16Controller
 
  auto term = new fabgl::Terminal;
  term->begin(&DisplayController);
  term->connectLocally();      // to use Terminal.read(), available(), etc..
  term->clear();
  term->write("Initializing...\r");
  term->flush();
 
  if (FileBrowser::mountSDCard(FORMAT_ON_FAIL, SDCARD_MOUNT_PATH, MAXFILES))
    basepath = SDCARD_MOUNT_PATH;
  else if (FileBrowser::mountSPIFFS(FORMAT_ON_FAIL, SPIFFS_MOUNT_PATH, MAXFILES))
    basepath = SPIFFS_MOUNT_PATH;
 
  // uncomment to format SPIFFS or SD card
  //FileBrowser::format(fabgl::DriveType::SPIFFS, 0);
  //FileBrowser::format(fabgl::DriveType::SDCard, 0);
 
  driveA_path = String(basepath) + String("/driveA");
  driveB_path = String(basepath) + String("/driveB");
 
  FileBrowser fb;
 
  fb.setDirectory(basepath);
  if (!fb.exists("driveA", false)) {
 
    fb.makeDirectory("driveA");
 
    // create default programs
    for (int i = 0; i < sizeof(programs) / sizeof(Program); ++i) {
      term->printf("Creating %s\\%s\r\n", programs[i].path, programs[i].filename);
      term->flush();
      // check directory
      fb.setDirectory(driveA_path.c_str());
      if (!fb.exists(programs[i].path, false))
        fb.makeDirectory(programs[i].path);
      fb.changeDirectory(programs[i].path);
      // copy file
      FILE * f = fb.openFile(programs[i].filename, "wb");
      if (f) {
        fwrite(programs[i].data, 1, programs[i].size, f);
        fclose(f);
      } else {
        term->write("  FAILED!\r\n");
      }
    }
 
  }
 
  fb.setDirectory(basepath);
  if (!fb.exists("driveB", false))
    fb.makeDirectory("driveB");
 
  delete term;
 
  supervisor.onNewSession = [&](HAL * hal) {
 
    hal->mountDrive(0, driveA_path.c_str());
    hal->mountDrive(1, driveB_path.c_str());
 
    // Serial (USB) ->  CP/M AUX1
    hal->setSerial(0, &Serial);
  };
 
  // change terminal when pressing F1..F12
  PS2Controller.keyboard()->onVirtualKey = [&](VirtualKey * vk, bool keyDown) {
    if (*vk >= VirtualKey::VK_F1 && *vk <= VirtualKey::VK_F12) {
      if (keyDown) {
        supervisor.activateSession((int)*vk - VirtualKey::VK_F1);
      }
      *vk = VirtualKey::VK_NONE;
    }
  };
 
 
 
}
 
 
void loop()
{
  supervisor.activateSession(0);
  vTaskDelete(NULL);
}