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Support it_shift for mmapped pckbd. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2691 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-04-16 22:47:54 +00:00
parent 8ecc791352
commit 8035529250
1 changed files with 22 additions and 12 deletions
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34
hw/pckbd.c
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@ -125,6 +125,7 @@ typedef struct KBDState {
qemu_irq irq_kbd;
qemu_irq irq_mouse;
target_phys_addr_t base;
int it_shift;
} KBDState;
KBDState kbd_state;
@ -384,21 +385,28 @@ 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);
switch ((addr - s->base) >> s->it_shift) {
case 0:
return kbd_read_data(s, 0) & 0xff;
case 1:
return kbd_read_status(s, 0) & 0xff;
default:
return 0xff;
}
}
void kbd_mm_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
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);
switch ((addr - s->base) >> s->it_shift) {
case 0:
kbd_write_data(s, 0, value & 0xff);
break;
case 1:
kbd_write_command(s, 0, value & 0xff);
break;
}
}
static CPUReadMemoryFunc *kbd_mm_read[] = {
@ -413,7 +421,8 @@ static CPUWriteMemoryFunc *kbd_mm_write[] = {
&kbd_mm_writeb,
};
void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, target_ulong base, int it_shift)
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;
@ -421,11 +430,12 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, target_ulong base, int
s->irq_kbd = kbd_irq;
s->irq_mouse = mouse_irq;
s->base = base;
s->it_shift = it_shift;
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);
cpu_register_physical_memory(base, 8 << it_shift, s_io_memory);
s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);
s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);