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Fixed up Altera support

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This commit is contained in:
Zane Kaminski
2023-08-16 03:53:59 -04:00
parent ac1d41f282
commit 0dc8b9b981
5 changed files with 103 additions and 181 deletions
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75
ram2gs.c
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@@ -11,9 +11,13 @@
static void ram2gs_erase() { ram2gs_cmd(0x28); }
static void ram2gs_program() { ram2gs_cmd(0x24); }
static void ram2gs_set4mb() { ram2gs_cmd(0x10); }
static void ram2gs_set8mb() { ram2gs_cmd(0x11); }
static void ram2gs_setnvm(char en8meg) {
static void ram2gs_set(char en8meg, char enled) {
char cmd = 0x10;
if (en8meg) { cmd |= 0x01; }
if (enled) { cmd |= 0x02; }
ram2gs_cmd(cmd);
}
static void ram2gs_set_nvm(char en8meg, char enled) {
char i;
// Clock in 0 to enable this setting entry
ram2gs_cmd(0x20);
@@ -29,8 +33,18 @@ static void ram2gs_setnvm(char en8meg) {
ram2gs_cmd(0x22);
}
// Clock in 14 dummy "1"s
for (i = 0; i < 14; i++) {
if (enled) {
// Clock in 0 to enable LED
ram2gs_cmd(0x20);
ram2gs_cmd(0x22);
} else {
// Clock in 1 to disable LED
ram2gs_cmd(0x21);
ram2gs_cmd(0x23);
}
// Clock in 13 dummy "1"s
for (i = 0; i < 13; i++) {
ram2gs_cmd(0x21);
ram2gs_cmd(0x23);
}
@@ -38,7 +52,15 @@ static void ram2gs_setnvm(char en8meg) {
ram2gs_program();
}
static void menu(void)
static void menu_led(char enled) {
if (enled) {
gwcputsxy(1, 15, "LED enabled. Press [L] to disable LED.");
} else {
gwcputsxy(1, 15, "LED disabled. Press [L] to enable LED.");
}
}
static void menu()
{
uint8_t bankcount = ram2gs_getsize();
gwcputsxy(5, 1, "-- RAM2GS Capacity Settings --");
@@ -63,28 +85,32 @@ static void menu(void)
int ram2gs_main(void)
{
char en8meg;
char nvm;
int reset_count;
char hasled = 1;
char typecode = 0;
char enled = 0;
char en8meg = 1;
char nvm = 0;
int reset_count = 0;
// Check for RAM2GS
#ifndef SKIP_RAM2GS_DETECT
if(!ram2gs_detect()) {
if (ram2gs_detect(0 << 2)) {
hasled = !ram2gs_detect(0x04);
typecode = 0x0;
} else {
#ifndef SKIP_RAM2GS_DETECT
// If no RAM2GS, show an error message and quit
gwcputsxy(0, 8, " No RAM2GS II detected.");
gwcputsxy(0, 10, " Press any key to quit.");
cgetc(); // Wait for key
clrscr(); // Clear screen before quitting
return EXIT_SUCCESS;
#endif
}
#endif
menu(); // Print menu
if (hasled) { enled = !ram2gs_detect(typecode | 0x02); }
menu();
if (hasled) { menu_led(enled); }
// Get user choice from menu
en8meg = 0;
nvm = 0;
reset_count = 0;
while (true) {
// Set capacity or quit according to keypress.
switch (toupper(cgetc() & 0x7F)) {
@@ -92,9 +118,14 @@ int ram2gs_main(void)
clrscr();
return EXIT_SUCCESS;
}
case '1': en8meg = 0; ram2gs_set4mb(); break;
case '2': en8meg = 1; ram2gs_set8mb(); break;
case 'R': {
case '1': en8meg = 0; ram2gs_set(0, enled); break;
case '2': en8meg = 1; ram2gs_set(1, enled); break;
case 'L': {
if (enled == 0) { enled = 1; }
else { enled = 0; }
if (hasled) { menu_led(enled); };
continue;
} case 'R': {
reset_count++;
if (reset_count >= 25) {
// Show message about resetting.
@@ -103,7 +134,7 @@ int ram2gs_main(void)
gwcputsxy(1, 9, "Do not turn off your Apple.");
ram2gs_erase(); // Erase RAM2GS settings memory
ram2gs_set8mb(); // Enable 8 megabytes now
ram2gs_set(1, 0); // Enable 8 megabytes and disable LED
// Wait for >= 500ms on even the fastest systems.
spin(32, 8);
@@ -130,7 +161,7 @@ int ram2gs_main(void)
gwcputsxy(1, 8, "Saving RAM2GS capacity setting.");
gwcputsxy(1, 9, "Do not turn off your Apple.");
// Save capacity in nonvolatile memory.
ram2gs_setnvm(en8meg);
ram2gs_set_nvm(en8meg, enled);
// Wait for >= 500ms on even the fastest systems.
spin(33, 8);
// Print success message