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#include "qdev.h"
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
{
void *ptr = dev;
ptr += prop->offset;
return ptr;
}
/* --- 16bit integer --- */
static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
{
uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
const char *fmt;
/* accept both hex and decimal */
fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx16 : "%" PRIu16;
if (sscanf(str, fmt, ptr) != 1)
return -1;
return 0;
}
static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "%" PRIu16, *ptr);
}
PropertyInfo qdev_prop_uint16 = {
.name = "uint16",
.type = PROP_TYPE_UINT16,
.size = sizeof(uint16_t),
.parse = parse_uint16,
.print = print_uint16,
};
/* --- 32bit integer --- */
static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
const char *fmt;
/* accept both hex and decimal */
fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx32 : "%" PRIu32;
if (sscanf(str, fmt, ptr) != 1)
return -1;
return 0;
}
static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "%" PRIu32, *ptr);
}
PropertyInfo qdev_prop_uint32 = {
.name = "uint32",
.type = PROP_TYPE_UINT32,
.size = sizeof(uint32_t),
.parse = parse_uint32,
.print = print_uint32,
};
/* --- 32bit hex value --- */
static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
if (sscanf(str, "%" PRIx32, ptr) != 1)
return -1;
return 0;
}
static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "0x%" PRIx32, *ptr);
}
PropertyInfo qdev_prop_hex32 = {
.name = "hex32",
.type = PROP_TYPE_UINT32,
.size = sizeof(uint32_t),
.parse = parse_hex32,
.print = print_hex32,
};
/* --- pointer --- */
static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len)
{
void **ptr = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "<%p>", *ptr);
}
PropertyInfo qdev_prop_ptr = {
.name = "ptr",
.type = PROP_TYPE_PTR,
.size = sizeof(void*),
.print = print_ptr,
};
/* --- mac address --- */
/*
* accepted syntax versions:
* 01:02:03:04:05:06
* 01-02-03-04-05-06
*/
static int parse_mac(DeviceState *dev, Property *prop, const char *str)
{
uint8_t *mac = qdev_get_prop_ptr(dev, prop);
int i, pos;
char *p;
for (i = 0, pos = 0; i < 6; i++, pos += 3) {
if (!isxdigit(str[pos]))
return -1;
if (!isxdigit(str[pos+1]))
return -1;
if (i == 5 && str[pos+2] != '\0')
return -1;
if (str[pos+2] != ':' && str[pos+2] != '-')
return -1;
mac[i] = strtol(str+pos, &p, 16);
}
return 0;
}
static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
{
uint8_t *mac = qdev_get_prop_ptr(dev, prop);
return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
}
PropertyInfo qdev_prop_macaddr = {
.name = "mac-addr",
.type = PROP_TYPE_MACADDR,
.size = 6,
.parse = parse_mac,
.print = print_mac,
};
/* --- public helpers --- */
static Property *qdev_prop_walk(Property *props, const char *name)
{
if (!props)
return NULL;
while (props->name) {
if (strcmp(props->name, name) == 0)
return props;
props++;
}
return NULL;
}
static Property *qdev_prop_find(DeviceState *dev, const char *name)
{
Property *prop;
/* device properties */
prop = qdev_prop_walk(dev->info->props, name);
if (prop)
return prop;
/* bus properties */
prop = qdev_prop_walk(dev->parent_bus->info->props, name);
if (prop)
return prop;
return NULL;
}
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
{
Property *prop;
prop = qdev_prop_find(dev, name);
if (!prop) {
fprintf(stderr, "property \"%s.%s\" not found\n",
dev->info->name, name);
return -1;
}
if (!prop->info->parse) {
fprintf(stderr, "property \"%s.%s\" has no parser\n",
dev->info->name, name);
return -1;
}
return prop->info->parse(dev, prop, value);
}
void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
{
Property *prop;
void *dst;
prop = qdev_prop_find(dev, name);
if (!prop) {
fprintf(stderr, "%s: property \"%s.%s\" not found\n",
__FUNCTION__, dev->info->name, name);
abort();
}
if (prop->info->type != type) {
fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
__FUNCTION__, dev->info->name, name);
abort();
}
dst = qdev_get_prop_ptr(dev, prop);
memcpy(dst, src, prop->info->size);
}
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
{
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
}
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
{
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
}
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
{
qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
}
void qdev_prop_set_defaults(DeviceState *dev, Property *props)
{
char *dst;
if (!props)
return;
while (props->name) {
if (props->defval) {
dst = qdev_get_prop_ptr(dev, props);
memcpy(dst, props->defval, props->info->size);
}
props++;
}
}
static CompatProperty *compat_props;
void qdev_prop_register_compat(CompatProperty *props)
{
compat_props = props;
}
void qdev_prop_set_compat(DeviceState *dev)
{
CompatProperty *prop;
if (!compat_props) {
return;
}
for (prop = compat_props; prop->driver != NULL; prop++) {
if (strcmp(dev->info->name, prop->driver) != 0) {
continue;
}
if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
abort();
}
}
}
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