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Adding SPI transfer mode to LinkCableMultiboot_demo example

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This commit is contained in:
Rodrigo Alfonso
2024-08-21 21:24:19 -03:00
parent 529c78e22e
commit df68a8941c
2 changed files with 22 additions and 12 deletions
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2
README.md
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@@ -121,7 +121,7 @@ You can change these compile-time constants:
Name | Return type | Description
--- | --- | ---
`sendRom(rom, romSize, cancel, [mode])` | **LinkCableMultiboot::Result** | Sends the `rom`. During the handshake process, the library will continuously invoke `cancel`, and abort the transfer if it returns `true`. The `romSize` must be a number between `448` and `262144`, and a multiple of `16`. The `mode` can be either `TransferMode::MULTI_PLAY` for GBA cable (default value) or `TransferMode::SPI` for GBC cable. Once completed, the return value should be `LinkCableMultiboot::Result::SUCCESS`.
`sendRom(rom, romSize, cancel, [mode])` | **LinkCableMultiboot::Result** | Sends the `rom`. During the handshake process, the library will continuously invoke `cancel`, and abort the transfer if it returns `true`. The `romSize` must be a number between `448` and `262144`, and a multiple of `16`. The `mode` can be either `LinkCableMultiboot::TransferMode::MULTI_PLAY` for GBA cable (default value) or `LinkCableMultiboot::TransferMode::SPI` for GBC cable. Once completed, the return value should be `LinkCableMultiboot::Result::SUCCESS`.
⚠️ for better results, turn on the GBAs **after** calling the `sendRom` method!

32
examples/LinkCableMultiboot_demo/src/main.cpp
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@@ -11,6 +11,7 @@ extern "C" {
static const GBFS_FILE* fs = find_first_gbfs_file(0);
static u32 selectedFile = 0;
static bool spi = false;
void log(std::string text);
void waitFor(u16 key);
@@ -53,7 +54,7 @@ int main() {
;
}
bool left = false, right = false, a = false, b = false;
bool left = false, right = false, a = false, b = false, l = false;
while (true) {
// Get selected ROM name
@@ -68,12 +69,9 @@ int main() {
}
}
// Menu
log("LinkCableMultiboot_demo\n (v7.0.0)\n\n"
"Press A to send the ROM...\n"
"Press B to launch the ROM...\nLEFT/RIGHT: select ROM\n\nSelected "
"ROM:\n " +
std::string(name));
// Toggle mode
if (didPress(KEY_L, l))
spi = !spi;
// Select ROM
if (didPress(KEY_LEFT, left))
@@ -81,15 +79,27 @@ int main() {
if (didPress(KEY_RIGHT, right))
selectRight();
// Menu
log("LinkCableMultiboot_demo\n (v7.0.0)\n\n"
"Press A to send the ROM...\n"
"Press B to launch the ROM...\nLEFT/RIGHT: select ROM\nL: toggle "
"mode\n\nSelected ROM:\n " +
std::string(name) + "\n\nMode:\n " +
std::string(spi ? "SPI (GBC cable)" : "MULTI_PLAY (GBA cable)"));
// Send ROM
if (didPress(KEY_A, a)) {
log("Sending... (SELECT to cancel)");
// (2) Send the ROM
auto result = linkCableMultiboot->sendRom(romToSend, romSize, []() {
u16 keys = ~REG_KEYS & KEY_ANY;
return keys & KEY_SELECT;
});
auto result = linkCableMultiboot->sendRom(
romToSend, romSize,
[]() {
u16 keys = ~REG_KEYS & KEY_ANY;
return keys & KEY_SELECT;
},
spi ? LinkCableMultiboot::TransferMode::SPI
: LinkCableMultiboot::TransferMode::MULTI_PLAY);
// Print results and wait
log("Result: " + std::to_string(result) + "\n" +