mirror of
https://github.com/garrettsworkshop/GWRAM.SYSTEM.git
synced 2024-08-31 12:29:50 +00:00
187 lines
4.6 KiB
C
187 lines
4.6 KiB
C
#include <stdlib.h>
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#include <conio.h>
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdint.h>
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#include "util.h"
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#include "gwconio.h"
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#include "ram2gs_hal.h"
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static void menu()
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{
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clrscr(); // Clear screen
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gwcputsxy(5, 1, "-- RAM2GS Capacity Settings --");
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gwcputsxy(4, 3, "Current RAM2GS capacity: ...");
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gwcputsxy(1, 6, "Select desired memory capacity:");
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gwcputsxy(4, 8, "1. 4 megabytes");
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gwcputsxy(4, 10, "2. 8 megabytes");
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gwcputsxy(1, 18, "Capacity will be saved until power-off.");
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gwcputsxy(1, 20, "To remember capacity and LED setting in");
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gwcputsxy(1, 21, "nonvolatile memory, press Apple+number.");
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gwcputsxy(1, 23, "Press [Q] to quit without saving.");
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}
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static void menu_size(uint16_t bankcount) {
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gotoxy(29, 3);
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printf("%d", bankcount * 64);
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gwcputs(" kB");
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}
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static void menu_led(char enled) {
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if (enled) { gwcputsxy(1, 15, "LED enabled. Press [L] to disable LED."); }
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else { gwcputsxy(1, 15, "LED disabled. Press [L] to enable LED."); }
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}
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static void loading_screen()
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{
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clrscr(); // Clear screen
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gwcputsxy(8, 1, "Loading RAM2GS settings...");
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}
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int ram2gs_main(void)
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{
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char type;
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uint8_t bankcount;
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char en8meg = true;
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char hasled = true;
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char enled = false;
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char nvm = false;
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int reset_count = 0;
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loading_screen();
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if (ram2gs_detect(0x00)) { // Altera MAX II / V
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type = 0x00;
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hasled = !ram2gs_detect(0x04);
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} else if (ram2gs_detect(0x04)) { // Lattice MachXO / iCE40 / AGM AG256
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type = 0x04;
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hasled = true;
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} else if (ram2gs_detect(0x08)) { // Lattice MachXO2
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type = 0x08;
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hasled = true;
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} else {
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#ifndef SKIP_RAM2GS_DETECT
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// If no RAM2GS, show an error message and quit
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gwcputsxy(0, 8, " No RAM2GS II detected.");
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gwcputsxy(0, 10, " Press any key to quit.");
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cgetc(); // Wait for key
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clrscr(); // Clear screen before quitting
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return EXIT_SUCCESS;
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#else
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hasled = true;
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#endif
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}
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// Set chip type
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ram2gs_hal_set_type(type);
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// Print menu
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menu();
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// Detect and print current capacity
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bankcount = ram2gs_getsize();
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en8meg = bankcount >= 128;
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menu_size(bankcount);
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// Detect and print LED menu
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#ifndef SKIP_RAM2GS_DETECT
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if (hasled) {
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enled = !ram2gs_detect(type | 0x02);
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menu_led(enled);
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}
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#endif
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// Get user choice from menu
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while (true) {
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// Set capacity or quit according to keypress.
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switch (toupper(cgetc() & 0x7F)) {
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case 'Q' : {
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clrscr();
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return EXIT_SUCCESS;
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}
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case '1': en8meg = false; ram2gs_set(en8meg, enled); break;
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case '2': en8meg = true; ram2gs_set(en8meg, enled); break;
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case 'L': {
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enled = !enled;
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ram2gs_set(en8meg, enled);
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if (hasled) {
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menu_led(enled);
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if (enled) {
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wait(1);
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ram2gs_flashled(10);
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wait(10);
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ram2gs_flashled(10);
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}
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};
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continue;
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} case 'R': {
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reset_count++;
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if (reset_count >= 25) {
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// Show message about resetting.
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clrscr(); // Clear screen
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gwcputsxy(1, 8, "Resetting RAM2GS settings.");
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gwcputsxy(1, 9, "Do not turn off your Apple.");
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ram2gs_erase(); // Erase RAM2GS settings memory
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ram2gs_set(1, 0); // Enable 8 megabytes and disable LED
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// Wait for >= 500ms on even the fastest systems.
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spin(32, 8);
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// Show success message and quit
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clrscr(); // Clear screen
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gwcputsxy(1, 8, "RAM2GS settings reset successfully.");
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nvm = true;
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goto end;
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}
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continue;
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} default: reset_count = 0; continue;
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}
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// Check if pressed with apple key. If so, save to nonvolatile memory.
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if (read_applekey()) { nvm = true; }
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break;
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}
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// Clear screen in preparation to show saving or success message.
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clrscr();
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if (nvm) { // Save in NVM if requested.
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// Show message about saving.
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gwcputsxy(1, 8, "Saving RAM2GS capacity setting.");
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gwcputsxy(1, 9, "Do not turn off your Apple.");
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// Save capacity in nonvolatile memory.
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ram2gs_save_start(en8meg, enled);
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// Wait for >= 500ms on even the fastest systems.
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spin(33, 8);
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// Finish saving
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ram2gs_save_end(en8meg, enled);
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// Print success message
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clrscr(); // Clear screen
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gwcputsxy(1, 8, "RAM2GS capacity saved successfully.");
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} else { // Print success message if not saving in NVM.
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gwcputsxy(1, 8, "RAM2GS capacity set successfully.");
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}
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end:
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if (nvm) { // Show end message for nonvolatile save
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gwcputsxy(1, 10, "You may now turn off your Apple.");
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gwcputsxy(1, 12, "You may also reset your Apple for");
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gwcputsxy(1, 13, "the setting change to take effect.");
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} else { // Show end message for volatile save
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gwcputsxy(1, 10, "Please reset your Apple for");
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gwcputsxy(1, 11, "the setting change to take effect.");
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}
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// Don't quit. Instead leave prompt asking user to reset.
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while(1) { cgetc(); }
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}
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