qemu_irq irq;
qemu_irq out[N_GPIOS];
const unsigned char *id;
- uint32_t rsvd_start; /* reserved area: [rsvd_start, 0xfcc] */
};
static const VMStateDescription vmstate_pl061 = {
{
PL061State *s = (PL061State *)opaque;
- if (offset < 0x400) {
- return s->data & (offset >> 2);
- }
- if (offset >= s->rsvd_start && offset <= 0xfcc) {
- goto err_out;
- }
- if (offset >= 0xfd0 && offset < 0x1000) {
- return s->id[(offset - 0xfd0) >> 2];
- }
switch (offset) {
+ case 0x0 ... 0x3ff: /* Data */
+ return s->data & (offset >> 2);
case 0x400: /* Direction */
return s->dir;
case 0x404: /* Interrupt sense */
case 0x420: /* Alternate function select */
return s->afsel;
case 0x500: /* 2mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->dr2r;
case 0x504: /* 4mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->dr4r;
case 0x508: /* 8mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->dr8r;
case 0x50c: /* Open drain */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->odr;
case 0x510: /* Pull-up */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->pur;
case 0x514: /* Pull-down */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->pdr;
case 0x518: /* Slew rate control */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->slr;
case 0x51c: /* Digital enable */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->den;
case 0x520: /* Lock */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->locked;
case 0x524: /* Commit */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->cr;
case 0x528: /* Analog mode select */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
return s->amsel;
+ case 0xfd0 ... 0xfff: /* ID registers */
+ return s->id[(offset - 0xfd0) >> 2];
default:
+ bad_offset:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "pl061_read: Bad offset %x\n", (int)offset);
break;
}
-err_out:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl061_read: Bad offset %x\n", (int)offset);
return 0;
}
PL061State *s = (PL061State *)opaque;
uint8_t mask;
- if (offset < 0x400) {
+ switch (offset) {
+ case 0 ... 0x3ff:
mask = (offset >> 2) & s->dir;
s->data = (s->data & ~mask) | (value & mask);
pl061_update(s);
return;
- }
- if (offset >= s->rsvd_start) {
- goto err_out;
- }
- switch (offset) {
case 0x400: /* Direction */
s->dir = value & 0xff;
break;
s->afsel = (s->afsel & ~mask) | (value & mask);
break;
case 0x500: /* 2mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->dr2r = value & 0xff;
break;
case 0x504: /* 4mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->dr4r = value & 0xff;
break;
case 0x508: /* 8mA drive */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->dr8r = value & 0xff;
break;
case 0x50c: /* Open drain */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->odr = value & 0xff;
break;
case 0x510: /* Pull-up */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->pur = value & 0xff;
break;
case 0x514: /* Pull-down */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->pdr = value & 0xff;
break;
case 0x518: /* Slew rate control */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->slr = value & 0xff;
break;
case 0x51c: /* Digital enable */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->den = value & 0xff;
break;
case 0x520: /* Lock */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->locked = (value != 0xacce551);
break;
case 0x524: /* Commit */
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
if (!s->locked)
s->cr = value & 0xff;
break;
case 0x528:
+ if (s->id != pl061_id_luminary) {
+ goto bad_offset;
+ }
s->amsel = value & 0xff;
break;
default:
- goto err_out;
+ bad_offset:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "pl061_write: Bad offset %x\n", (int)offset);
+ return;
}
pl061_update(s);
return;
-err_out:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl061_write: Bad offset %x\n", (int)offset);
}
static void pl061_reset(DeviceState *dev)
PL061State *s = PL061(obj);
s->id = pl061_id_luminary;
- s->rsvd_start = 0x52c;
}
static void pl061_init(Object *obj)
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
s->id = pl061_id;
- s->rsvd_start = 0x424;
memory_region_init_io(&s->iomem, obj, &pl061_ops, s, "pl061", 0x1000);
sysbus_init_mmio(sbd, &s->iomem);