static uint8_t fw_cfg_read(FWCfgState *s)
{
int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
uint8_t ret;
if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len)
ret = 0;
else {
if (e->read_callback) {
e->read_callback(e->callback_opaque, s->cur_offset);
}
ret = e->data[s->cur_offset++];
}
trace_fw_cfg_read(s, ret);
return ret;
}
static int fw_cfg_select(FWCfgState *s, uint16_t key)
{
int arch, ret;
FWCfgEntry *e;
s->cur_offset = 0;
if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
s->cur_entry = FW_CFG_INVALID;
ret = 0;
} else {
s->cur_entry = key;
ret = 1;
/* entry successfully selected, now run callback if present */
arch = !!(key & FW_CFG_ARCH_LOCAL);
e = &s->entries[arch][key & FW_CFG_ENTRY_MASK];
if (e->read_callback) {
e->read_callback(e->callback_opaque);
}
}
trace_fw_cfg_select(s, key, ret);
return ret;
}