hw/qdev-addr.c

   1 #include "qdev.h"
   2 #include "qdev-addr.h"
   3 #include "exec/hwaddr.h"
   4 #include "qapi/visitor.h"
   5
   6 /* --- target physical address --- */
   7
   8 static int parse_taddr(DeviceState *dev, Property *prop, const char *str)
   9 {
  10     hwaddr *ptr = qdev_get_prop_ptr(dev, prop);
  11
  12     *ptr = strtoull(str, NULL, 16);
  13     return 0;
  14 }
  15
  16 static int print_taddr(DeviceState *dev, Property *prop, char *dest, size_t len)
  17 {
  18     hwaddr *ptr = qdev_get_prop_ptr(dev, prop);
  19     return snprintf(dest, len, "0x" TARGET_FMT_plx, *ptr);
  20 }
  21
  22 static void get_taddr(Object *obj, Visitor *v, void *opaque,
  23                       const char *name, Error **errp)
  24 {
  25     DeviceState *dev = DEVICE(obj);
  26     Property *prop = opaque;
  27     hwaddr *ptr = qdev_get_prop_ptr(dev, prop);
  28     int64_t value;
  29
  30     value = *ptr;
  31     visit_type_int64(v, &value, name, errp);
  32 }
  33
  34 static void set_taddr(Object *obj, Visitor *v, void *opaque,
  35                       const char *name, Error **errp)
  36 {
  37     DeviceState *dev = DEVICE(obj);
  38     Property *prop = opaque;
  39     hwaddr *ptr = qdev_get_prop_ptr(dev, prop);
  40     Error *local_err = NULL;
  41     int64_t value;
  42
  43     if (dev->state != DEV_STATE_CREATED) {
  44         error_set(errp, QERR_PERMISSION_DENIED);
  45         return;
  46     }
  47
  48     visit_type_int64(v, &value, name, &local_err);
  49     if (local_err) {
  50         error_propagate(errp, local_err);
  51         return;
  52     }
  53     if ((uint64_t)value <= (uint64_t) ~(hwaddr)0) {
  54         *ptr = value;
  55     } else {
  56         error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
  57                   dev->id?:"", name, value, (uint64_t) 0,
  58                   (uint64_t) ~(hwaddr)0);
  59     }
  60 }
  61
  62
  63 PropertyInfo qdev_prop_taddr = {
  64     .name  = "taddr",
  65     .parse = parse_taddr,
  66     .print = print_taddr,
  67     .get   = get_taddr,
  68     .set   = set_taddr,
  69 };
  70
  71 void qdev_prop_set_taddr(DeviceState *dev, const char *name, hwaddr value)
  72 {
  73     Error *errp = NULL;
  74     object_property_set_int(OBJECT(dev), value, name, &errp);
  75     assert(!errp);
  76
  77 }