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PS/2 interface - Allow custom IO ports + IRQ, by Herve Poussineau. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2431 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-02-18 00:08:44 +00:00
parent 5867c88a82
commit b7678d96c5
1 changed files with 23 additions and 12 deletions
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35
hw/pckbd.c
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@ -121,6 +121,9 @@ typedef struct KBDState {
uint8_t pending;
void *kbd;
void *mouse;
int irq_kbd;
int irq_mouse;
} KBDState;
KBDState kbd_state;
@ -130,10 +133,10 @@ KBDState kbd_state;
incorrect, but it avoids having to simulate exact delays */
static void kbd_update_irq(KBDState *s)
{
int irq12_level, irq1_level;
int irq_kbd_level, irq_mouse_level;
irq1_level = 0;
irq12_level = 0;
irq_kbd_level = 0;
irq_mouse_level = 0;
s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF);
if (s->pending) {
s->status |= KBD_STAT_OBF;
@ -141,15 +144,15 @@ static void kbd_update_irq(KBDState *s)
if (s->pending == KBD_PENDING_AUX) {
s->status |= KBD_STAT_MOUSE_OBF;
if (s->mode & KBD_MODE_MOUSE_INT)
irq12_level = 1;
irq_mouse_level = 1;
} else {
if ((s->mode & KBD_MODE_KBD_INT) &&
!(s->mode & KBD_MODE_DISABLE_KBD))
irq1_level = 1;
irq_kbd_level = 1;
}
}
pic_set_irq(1, irq1_level);
pic_set_irq(12, irq12_level);
pic_set_irq(s->irq_kbd, irq_kbd_level);
pic_set_irq(s->irq_mouse, irq_mouse_level);
}
static void kbd_update_kbd_irq(void *opaque, int level)
@ -353,18 +356,26 @@ static int kbd_load(QEMUFile* f, void* opaque, int version_id)
return 0;
}
void kbd_init(void)
void i8042_init(int kbd_irq_lvl, int mouse_irq_lvl, uint32_t io_base)
{
KBDState *s = &kbd_state;
s->irq_kbd = kbd_irq_lvl;
s->irq_mouse = mouse_irq_lvl;
kbd_reset(s);
register_savevm("pckbd", 0, 3, kbd_save, kbd_load, s);
register_ioport_read(0x60, 1, 1, kbd_read_data, s);
register_ioport_write(0x60, 1, 1, kbd_write_data, s);
register_ioport_read(0x64, 1, 1, kbd_read_status, s);
register_ioport_write(0x64, 1, 1, kbd_write_command, s);
register_ioport_read(io_base, 1, 1, kbd_read_data, s);
register_ioport_write(io_base, 1, 1, kbd_write_data, s);
register_ioport_read(io_base + 4, 1, 1, kbd_read_status, s);
register_ioport_write(io_base + 4, 1, 1, kbd_write_command, s);
s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);
s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);
qemu_register_reset(kbd_reset, s);
}
void kbd_init(void)
{
return i8042_init(1, 12, 0x60);
}