qemu/hw/fw_cfg.h

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#ifndef FW_CFG_H
#define FW_CFG_H
#define FW_CFG_SIGNATURE 0x00
#define FW_CFG_ID 0x01
#define FW_CFG_MAX_ENTRY 0x10
#define FW_CFG_WRITE_CHANNEL 0x4000
#define FW_CFG_ARCH_LOCAL 0x8000
#define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
#define FW_CFG_INVALID 0xffff
#ifndef NO_QEMU_PROTOS
typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint16_t len);
int fw_cfg_add_i16(void *opaque, uint16_t key, uint16_t value);
int fw_cfg_add_i32(void *opaque, uint16_t key, uint32_t value);
int fw_cfg_add_i64(void *opaque, uint16_t key, uint64_t value);
int fw_cfg_add_callback(void *opaque, uint16_t key, FWCfgCallback callback,
void *callback_opaque, uint8_t *data, size_t len);
void *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
target_phys_addr_t crl_addr, target_phys_addr_t data_addr);
#endif /* NO_QEMU_PROTOS */
#endif