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Memory-mapped interface for PS/2 controller, by Herve Poussineau.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2685 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-04-16 17:20:48 +00:00
parent 3a6078548d
commit b92bb99b80
2 changed files with 61 additions and 3 deletions
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59
hw/pckbd.c
View File

@ -124,6 +124,7 @@ typedef struct KBDState {
qemu_irq irq_kbd;
qemu_irq irq_mouse;
target_phys_addr_t base;
} KBDState;
KBDState kbd_state;
@ -140,7 +141,7 @@ static void kbd_update_irq(KBDState *s)
s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF);
if (s->pending) {
s->status |= KBD_STAT_OBF;
/* kdb data takes priority over aux data. */
/* kbd data takes priority over aux data. */
if (s->pending == KBD_PENDING_AUX) {
s->status |= KBD_STAT_MOUSE_OBF;
if (s->mode & KBD_MODE_MOUSE_INT)
@ -377,3 +378,59 @@ void i8042_init(qemu_irq kbd_irq, qemu_irq mouse_irq, uint32_t io_base)
#endif
qemu_register_reset(kbd_reset, s);
}
/* Memory mapped interface */
uint32_t kbd_mm_readb (void *opaque, target_phys_addr_t addr)
{
KBDState *s = opaque;
if (addr == s->base)
return kbd_read_data(s, 0);
else
return kbd_read_status(s, 0);
}
void kbd_mm_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
KBDState *s = opaque;
if (addr == s->base)
kbd_write_data(s, 0, value);
else
kbd_write_command(s, 0, value);
}
static CPUReadMemoryFunc *kbd_mm_read[] = {
&kbd_mm_readb,
&kbd_mm_readb,
&kbd_mm_readb,
};
static CPUWriteMemoryFunc *kbd_mm_write[] = {
&kbd_mm_writeb,
&kbd_mm_writeb,
&kbd_mm_writeb,
};
void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, target_ulong base, int it_shift)
{
KBDState *s = &kbd_state;
int s_io_memory;
s->irq_kbd = kbd_irq;
s->irq_mouse = mouse_irq;
s->base = base;
kbd_reset(s);
register_savevm("pckbd", 0, 3, kbd_save, kbd_load, s);
s_io_memory = cpu_register_io_memory(0, kbd_mm_read, kbd_mm_write, s);
cpu_register_physical_memory(base & ~(TARGET_PAGE_SIZE - 1), TARGET_PAGE_SIZE, s_io_memory);
s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);
s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);
#ifdef TARGET_I386
vmmouse_init(s->mouse);
#endif
qemu_register_reset(kbd_reset, s);
}

3
vl.h
View File

@ -1035,7 +1035,8 @@ void *vmmouse_init(void *m);
/* pckbd.c */
void i8042_init(qemu_irq kdb_irq, qemu_irq mouse_irq, uint32_t io_base);
void i8042_init(qemu_irq kbd_irq, qemu_irq mouse_irq, uint32_t io_base);
void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, target_ulong base, int it_shift);
/* mc146818rtc.c */