blob: 69cc8711e987b4f5c608ca7eb283cb2839bb29e4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* PSn00bSDK Konami System 573 example (I/O driver)
* (C) 2022 spicyjpeg - MPL licensed
*/
#include <stdint.h>
#include <psxgpu.h>
#include <hwregs_c.h>
#include "k573io.h"
uint32_t K573_GetJAMMAInputs(void) {
uint32_t inputs;
inputs = K573_JAMMA_IN;
inputs |= ((K573_EXT_IN_P1 >> 8) & 0x0f) << 16;
inputs |= ((K573_EXT_IN_P2 >> 8) & 0x0f) << 20;
inputs |= ((K573_MISC_IN >> 8) & 0x1f) << 24;
inputs |= (K573_DIP_CART_IN & 0x07) << 29;
return ~inputs;
}
void K573_SetAnalogLights(uint32_t lights) {
uint32_t bits = 0xffffffff;
bits ^= (lights & 0x00010101) << 7; // Bit 0 -> bit 7
bits ^= (lights & 0x00020202) >> 1; // Bit 1 -> bit 0
bits ^= (lights & 0x00040404) << 4; // Bit 2 -> bit 6
bits ^= (lights & 0x00080808) >> 2; // Bit 3 -> bit 1
bits ^= (lights & 0x00101010) << 1; // Bit 4 -> bit 5
bits ^= (lights & 0x00202020) >> 3; // Bit 5 -> bit 2
bits ^= (lights & 0x00404040) >> 2; // Bit 6 -> bit 4
bits ^= (lights & 0x00808080) >> 4; // Bit 7 -> bit 3
bits ^= (lights & 0x0f000000) >> 24;
K573_IO_BOARD[ANALOG_IO_REG_LIGHTS_A] = (bits) & 0xff;
K573_IO_BOARD[ANALOG_IO_REG_LIGHTS_B] = (bits >> 8) & 0xff;
K573_IO_BOARD[ANALOG_IO_REG_LIGHTS_C] = (bits >> 16) & 0xff;
K573_IO_BOARD[ANALOG_IO_REG_LIGHTS_D] = (bits >> 24) & 0xff;
}
void K573_Init(void) {
BUS_EXP1_ADDR = 0x1f000000;
BUS_EXP1_CFG = 0x24173f47; // 573 BIOS uses this value
// Bit 6 of this register controls the audio DAC and must be set, otherwise
// no sound will be output. Most of the other bits are data clocks/strobes
// and should be pulled high when not in use.
K573_MISC_OUT =
MISC_OUT_ADC_MOSI | MISC_OUT_ADC_CS | MISC_OUT_ADC_SCK |
MISC_OUT_CDDA_ENABLE | MISC_OUT_SPU_ENABLE | MISC_OUT_MCU_CLOCK;
K573_RESET_WATCHDOG();
}
|
