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swdc: add ffb and led emulation

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This commit is contained in:
Dniel97
2024-09-30 20:23:28 +02:00
parent c06bb408e7
commit 2251585ef0
24 changed files with 872 additions and 146 deletions
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35
swdchook/io4.c
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@ -15,10 +15,12 @@ static HRESULT init_mmf(void);
static void swdc_set_gamebtns(uint16_t value);
static HRESULT swdc_io4_poll(void *ctx, struct io4_state *state);
static HRESULT swdc_io4_write_gpio(uint8_t* payload, size_t len);
static uint16_t coins;
static const struct io4_ops swdc_io4_ops = {
.poll = swdc_io4_poll,
.poll = swdc_io4_poll,
.write_gpio = swdc_io4_write_gpio
};
HRESULT swdc_io4_hook_init(const struct io4_config *cfg) {
@ -172,3 +174,34 @@ static HRESULT swdc_io4_poll(void *ctx, struct io4_state *state) {
return S_OK;
}
static HRESULT swdc_io4_write_gpio(uint8_t* payload, size_t len)
{
// Just fast fail if there aren't enough bytes in the payload
if (len < 3)
return S_OK;
// This command is used for lights in SWDC, but it only contains button lights,
// and only in the first 3 bytes of the payload; everything else is padding to
// make the payload 62 bytes. The rest of the cabinet lights and the side button
// lights are handled separately, by the 15070 lights controller.
uint32_t lights_data = (uint32_t) ((uint8_t)(payload[0]) << 24 |
(uint8_t)(payload[1]) << 16 |
(uint8_t)(payload[2]) << 8);
// Since Sega uses an odd ordering for the first part of the bitfield,
// let's normalize the data and just send over bytes for the receiver
// to interpret as ON/OFF values.
uint8_t rgb_out[6] = {
lights_data & SWDC_IO_LED_START ? 0xFF : 0x00,
lights_data & SWDC_IO_LED_VIEW_CHANGE ? 0xFF : 0x00,
lights_data & SWDC_IO_LED_UP ? 0xFF : 0x00,
lights_data & SWDC_IO_LED_DOWN ? 0xFF : 0x00,
lights_data & SWDC_IO_LED_RIGHT ? 0xFF : 0x00,
lights_data & SWDC_IO_LED_LEFT ? 0xFF : 0x00,
};
swdc_dll.led_set_leds(rgb_out);
return S_OK;
}