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DS I/O: Key input

This commit is contained in:
Vicki Pfau 2017-02-16 17:09:27 -08:00
parent 2bbc6e371f
commit f78f45b60f
2 changed files with 31 additions and 6 deletions
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10
include/mgba/internal/ds/io.h
View File

@ -61,6 +61,10 @@ enum DSIORegisters {
DS_REG_TM3CNT_LO = 0x10C,
DS_REG_TM3CNT_HI = 0x10E,
// Keypad
DS_REG_KEYINPUT = 0x130,
DS_REG_KEYCNT = 0x132,
// IPC
DS_REG_IPCSYNC = 0x180,
DS_REG_IPCFIFOCNT = 0x184,
@ -79,8 +83,6 @@ enum DSIORegisters {
enum DS7IORegisters {
// Keypad
DS7_REG_KEYINPUT = 0x130,
DS7_REG_KEYCNT = 0x132,
DS7_REG_EXTKEYIN = 0x136,
DS7_REG_RTC = 0x138,
@ -208,10 +210,6 @@ enum DS9IORegisters {
DS9_REG_B_BLDY = 0x1054,
DS9_REG_B_MASTER_BRIGHT = 0x106C,
// Keypad
DS9_REG_KEYINPUT = 0x130,
DS9_REG_KEYCNT = 0x132,
// Game card
DS9_REG_AUXSPICNT = 0x1A0,
DS9_REG_AUXSPIDATA = 0x1A2,

27
src/ds/io.c
View File

@ -5,6 +5,7 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <mgba/internal/ds/io.h>
#include <mgba/core/interface.h>
#include <mgba/internal/ds/ds.h>
#include <mgba/internal/ds/ipc.h>
@ -97,6 +98,28 @@ static uint32_t DSIOWrite(struct DSCommon* dscore, uint32_t address, uint16_t va
return value | 0x10000;
}
static uint16_t DSIOReadKeyInput(struct DS* ds) {
uint16_t input = 0x3FF;
if (ds->keyCallback) {
input = ds->keyCallback->readKeys(ds->keyCallback);
} else if (ds->keySource) {
input = *ds->keySource;
}
// TODO: Put back
/*if (!dscore->p->allowOpposingDirections) {
unsigned rl = input & 0x030;
unsigned ud = input & 0x0C0;
input &= 0x30F;
if (rl != 0x030) {
input |= rl;
}
if (ud != 0x0C0) {
input |= ud;
}
}*/
return 0x3FF ^ input;
}
static void DSIOUpdateTimer(struct DSCommon* dscore, uint32_t address) {
switch (address) {
case DS_REG_TM0CNT_LO:
@ -218,6 +241,8 @@ uint16_t DS7IORead(struct DS* ds, uint32_t address) {
case DS_REG_TM3CNT_LO:
DSIOUpdateTimer(&ds->ds7, address);
break;
case DS_REG_KEYINPUT:
return DSIOReadKeyInput(ds);
case DS_REG_DMA0FILL_LO:
case DS_REG_DMA0FILL_HI:
case DS_REG_DMA1FILL_LO:
@ -366,6 +391,8 @@ uint16_t DS9IORead(struct DS* ds, uint32_t address) {
case DS_REG_TM3CNT_LO:
DSIOUpdateTimer(&ds->ds9, address);
break;
case DS_REG_KEYINPUT:
return DSIOReadKeyInput(ds);
case DS_REG_DMA0FILL_LO:
case DS_REG_DMA0FILL_HI:
case DS_REG_DMA1FILL_LO: