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progress, swap up/down; map to gameboy buttons

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This commit is contained in:
Liz 2025-04-08 11:35:09 -04:00
parent d8462656c8
commit 44fa2b265d
1 changed files with 35 additions and 27 deletions
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62
MCUME_pico2/usb_kbd/hid_app.c
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@ -375,12 +375,21 @@ static void process_kbd_report (hid_keyboard_report_t const *report)
}
// this mapping is hard coded for a certain snes-style gamepad and picogb!
// Update this function in hid_app.c
static void process_gamepad_report(const uint8_t *report) {
uint16_t decoded_report = 0;
// Default input format from your HID explorer output:
// default input (no buttons pressed): 00 7F 7F 00 80 80 0F 00 00
// Y-axis (byte 2): 0x00=up, 0x7F=center, 0xFF=down
// Note: We're swapping UP/DOWN here to fix the menu navigation
if (report[2] < 0x40) {
decoded_report |= MASK_JOY2_DOWN; // Map UP to DOWN for the menu
} else if (report[2] > 0xB0) {
decoded_report |= MASK_JOY2_UP; // Map DOWN to UP for the menu
}
// X-axis (byte 1): 0x00=left, 0x7F=center, 0xFF=right
if (report[1] < 0x40) {
decoded_report |= MASK_JOY2_LEFT;
@ -388,52 +397,51 @@ static void process_gamepad_report(const uint8_t *report) {
decoded_report |= MASK_JOY2_RIGHT;
}
// Y-axis (byte 2): 0x00=up, 0x7F=center, 0xFF=down
if (report[2] < 0x40) {
decoded_report |= MASK_JOY2_UP;
} else if (report[2] > 0xB0) {
decoded_report |= MASK_JOY2_DOWN;
}
// Face buttons (byte 6)
// Looking at emu.cpp, we need to map:
// - A button to MASK_KEY_USER3
// - B button to MASK_JOY2_BTN
// - Select to MASK_KEY_USER1
// - Start to MASK_KEY_USER2
// A: 00 7F 7F 00 80 80 2F 00 00 (bit 0x20)
if (report[6] & 0x20) {
decoded_report |= MASK_JOY2_BTN; // A button
decoded_report |= MASK_KEY_USER3; // A button maps to gb.direct.joypad_bits.a
}
// B: 00 7F 7F 00 80 80 4F 00 00 (bit 0x40)
if (report[6] & 0x40) {
decoded_report |= MASK_KEY_USER1; // B button
decoded_report |= MASK_JOY2_BTN; // B button maps to gb.direct.joypad_bits.b
}
// X: 00 7F 7F 00 80 80 1F 00 00 (bit 0x10)
// X: 00 7F 7F 00 80 80 1F 00 00 (bit 0x10) - Map to B as an alternative
if (report[6] & 0x10) {
decoded_report |= MASK_KEY_USER2; // X button
decoded_report |= MASK_JOY2_BTN; // X button maps to B
}
// Y: 00 7F 7F 00 80 80 8F 00 00 (bit 0x80)
// Y: 00 7F 7F 00 80 80 8F 00 00 (bit 0x80) - Map to A as an alternative
if (report[6] & 0x80) {
decoded_report |= MASK_KEY_USER3; // Y button
}
// Start: 00 7F 7F 00 80 80 0F 20 00 (byte 7, bit 0x20)
if (report[7] & 0x20) {
decoded_report |= MASK_KEY_USER2; // Start (mapped to USER2)
decoded_report |= MASK_KEY_USER3; // Y button maps to A
}
// Select: 00 7F 7F 00 80 80 0F 10 00 (byte 7, bit 0x10)
if (report[7] & 0x10) {
decoded_report |= MASK_KEY_USER1; // Select (mapped to USER1)
decoded_report |= MASK_KEY_USER1; // Select button
}
// R: 00 7F 7F 00 80 80 0F 02 00 (byte 7, bit 0x02)
// Start: 00 7F 7F 00 80 80 0F 20 00 (byte 7, bit 0x20)
if (report[7] & 0x20) {
decoded_report |= MASK_KEY_USER2; // Start button
}
// R: 00 7F 7F 00 80 80 0F 02 00 (byte 7, bit 0x02) - Map to B as an alternative
if (report[7] & 0x02) {
decoded_report |= MASK_KEY_USER4; // R button
decoded_report |= MASK_JOY2_BTN; // R button maps to B
}
// L: 00 7F 7F 00 80 80 0F 01 00 (byte 7, bit 0x01)
// L: 00 7F 7F 00 80 80 0F 01 00 (byte 7, bit 0x01) - Map to A as an alternative
if (report[7] & 0x01) {
decoded_report |= MASK_JOY1_BTN; // L button
decoded_report |= MASK_KEY_USER3; // L button maps to A
}
// Send the decoded gamepad state
@ -502,10 +510,10 @@ int proto = tuh_hid_interface_protocol (dev_addr, instance);
process_kbd_report ((hid_keyboard_report_t const*) report);
break;
case HID_ITF_PROTOCOL_NONE:
if (len == 8) {
process_gamepad_report (report);
}
break;
if (len >= 8 && len <= 9) {
process_gamepad_report(report);
}
break;
#if 0 // you get to implement it, hoss!
case HID_ITF_PROTOCOL_MOUSE:
printf("MOUSE len=%d\n", len);