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Allow game port to be remapped

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This commit is contained in:
RichardG867
2021-04-02 23:44:24 -03:00
parent 75b2d4f6b4
commit c9e75f6624
1 changed files with 47 additions and 56 deletions
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103
src/game/gameport.c
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@@ -60,6 +60,7 @@ typedef struct {
typedef struct _gameport_ {
uint8_t state;
uint16_t addr;
g_axis_t axis[4];
@@ -243,10 +244,49 @@ timer_over(void *priv)
}
static void *
init_common(void)
void
gameport_update_joystick_type(void)
{
gameport_t *p = malloc(sizeof(gameport_t));
gameport_t *p = gameport_global;
if (p != NULL) {
p->joystick->close(p->joystick_dat);
p->joystick = joysticks[joystick_type].joystick;
p->joystick_dat = p->joystick->init();
}
}
void
gameport_remap(uint16_t address)
{
gameport_t *p = gameport_global;
if (!p)
return;
if (p->addr)
io_removehandler(p->addr, (p->addr & 1) ? 1 : 8,
gameport_read, NULL, NULL, gameport_write, NULL, NULL, p);
p->addr = address;
if (p->addr)
io_sethandler(p->addr, (p->addr & 1) ? 1 : 8,
gameport_read, NULL, NULL, gameport_write, NULL, NULL, p);
}
static void *
gameport_init(const device_t *info)
{
gameport_t *p = NULL;
if (!joystick_type) {
gameport_global = p = NULL;
return(p);
}
p = malloc(sizeof(gameport_t));
memset(p, 0x00, sizeof(gameport_t));
@@ -270,56 +310,7 @@ init_common(void)
gameport_global = p;
return(p);
}
void
gameport_update_joystick_type(void)
{
gameport_t *p = gameport_global;
if (p != NULL) {
p->joystick->close(p->joystick_dat);
p->joystick = joysticks[joystick_type].joystick;
p->joystick_dat = p->joystick->init();
}
}
static void *
gameport_init(const device_t *info)
{
gameport_t *p = NULL;
if (!joystick_type) {
p = NULL;
return(p);
}
p = init_common();
io_sethandler(0x0200, 8,
gameport_read,NULL,NULL, gameport_write,NULL,NULL, p);
return(p);
}
static void *
gameport_201_init(const device_t *info)
{
gameport_t *p;
if (!joystick_type) {
p = NULL;
return(p);
}
p = init_common();
io_sethandler(0x0201, 1,
gameport_read,NULL,NULL, gameport_write,NULL,NULL, p);
gameport_remap(info->local);
return(p);
}
@@ -342,7 +333,7 @@ gameport_close(void *priv)
const device_t gameport_device = {
"Game port",
0, 0,
0, 0x200,
gameport_init,
gameport_close,
NULL, { NULL }, NULL,
@@ -351,8 +342,8 @@ const device_t gameport_device = {
const device_t gameport_201_device = {
"Game port (port 201h only)",
0, 0,
gameport_201_init,
0, 0x201,
gameport_init,
gameport_close,
NULL, { NULL }, NULL,
NULL