include/hw/nvram/fw_cfg.h

   1 #ifndef FW_CFG_H
   2 #define FW_CFG_H
   3
   4 #ifndef NO_QEMU_PROTOS
   5 #include <stdint.h>
   6 #include <stddef.h>
   7
   8 #include "exec/hwaddr.h"
   9 #include "qemu/typedefs.h"
  10 #endif
  11
  12 #define FW_CFG_SIGNATURE        0x00
  13 #define FW_CFG_ID               0x01
  14 #define FW_CFG_UUID             0x02
  15 #define FW_CFG_RAM_SIZE         0x03
  16 #define FW_CFG_NOGRAPHIC        0x04
  17 #define FW_CFG_NB_CPUS          0x05
  18 #define FW_CFG_MACHINE_ID       0x06
  19 #define FW_CFG_KERNEL_ADDR      0x07
  20 #define FW_CFG_KERNEL_SIZE      0x08
  21 #define FW_CFG_KERNEL_CMDLINE   0x09
  22 #define FW_CFG_INITRD_ADDR      0x0a
  23 #define FW_CFG_INITRD_SIZE      0x0b
  24 #define FW_CFG_BOOT_DEVICE      0x0c
  25 #define FW_CFG_NUMA             0x0d
  26 #define FW_CFG_BOOT_MENU        0x0e
  27 #define FW_CFG_MAX_CPUS         0x0f
  28 #define FW_CFG_KERNEL_ENTRY     0x10
  29 #define FW_CFG_KERNEL_DATA      0x11
  30 #define FW_CFG_INITRD_DATA      0x12
  31 #define FW_CFG_CMDLINE_ADDR     0x13
  32 #define FW_CFG_CMDLINE_SIZE     0x14
  33 #define FW_CFG_CMDLINE_DATA     0x15
  34 #define FW_CFG_SETUP_ADDR       0x16
  35 #define FW_CFG_SETUP_SIZE       0x17
  36 #define FW_CFG_SETUP_DATA       0x18
  37 #define FW_CFG_FILE_DIR         0x19
  38
  39 #define FW_CFG_FILE_FIRST       0x20
  40 #define FW_CFG_FILE_SLOTS       0x10
  41 #define FW_CFG_MAX_ENTRY        (FW_CFG_FILE_FIRST+FW_CFG_FILE_SLOTS)
  42
  43 #define FW_CFG_WRITE_CHANNEL    0x4000
  44 #define FW_CFG_ARCH_LOCAL       0x8000
  45 #define FW_CFG_ENTRY_MASK       ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
  46
  47 #define FW_CFG_INVALID          0xffff
  48
  49 #ifndef NO_QEMU_PROTOS
  50 typedef struct FWCfgFile {
  51     uint32_t  size;        /* file size */
  52     uint16_t  select;      /* write this to 0x510 to read it */
  53     uint16_t  reserved;
  54     char      name[56];
  55 } FWCfgFile;
  56
  57 typedef struct FWCfgFiles {
  58     uint32_t  count;
  59     FWCfgFile f[];
  60 } FWCfgFiles;
  61
  62 typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
  63 typedef void (*FWCfgReadCallback)(void *opaque, uint32_t offset);
  64
  65 void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len);
  66 void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
  67 void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
  68 void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
  69 void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
  70 void fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
  71                          void *callback_opaque, void *data, size_t len);
  72 void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data,
  73                      size_t len);
  74 void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
  75                               FWCfgReadCallback callback, void *callback_opaque,
  76                               void *data, size_t len);
  77 FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
  78                         hwaddr crl_addr, hwaddr data_addr);
  79
  80 FWCfgState *fw_cfg_find(void);
  81
  82 #endif /* NO_QEMU_PROTOS */
  83
  84 #endif