6f061ea10f
Much of fw_cfg.h's contents is #ifndef NO_QEMU_PROTOS. This lets a few places include it without satisfying the dependencies of the suppressed code. If you somehow include it with NO_QEMU_PROTOS, any future includes are ignored. Unnecessarily unclean. Move the stuff not under NO_QEMU_PROTOS into its own header fw_cfg_keys.h, and include it as appropriate. Tidy up the moved code to please checkpatch. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
179 lines
6.5 KiB
C
179 lines
6.5 KiB
C
#ifndef FW_CFG_H
|
|
#define FW_CFG_H
|
|
|
|
#include "exec/hwaddr.h"
|
|
#include "hw/nvram/fw_cfg_keys.h"
|
|
|
|
typedef struct FWCfgFile {
|
|
uint32_t size; /* file size */
|
|
uint16_t select; /* write this to 0x510 to read it */
|
|
uint16_t reserved;
|
|
char name[FW_CFG_MAX_FILE_PATH];
|
|
} FWCfgFile;
|
|
|
|
typedef struct FWCfgFiles {
|
|
uint32_t count;
|
|
FWCfgFile f[];
|
|
} FWCfgFiles;
|
|
|
|
/* Control as first field allows for different structures selected by this
|
|
* field, which might be useful in the future
|
|
*/
|
|
typedef struct FWCfgDmaAccess {
|
|
uint32_t control;
|
|
uint32_t length;
|
|
uint64_t address;
|
|
} QEMU_PACKED FWCfgDmaAccess;
|
|
|
|
typedef void (*FWCfgReadCallback)(void *opaque);
|
|
|
|
/**
|
|
* fw_cfg_add_bytes:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @data: pointer to start of item data
|
|
* @len: size of item data
|
|
*
|
|
* Add a new fw_cfg item, available by selecting the given key, as a raw
|
|
* "blob" of the given size. The data referenced by the starting pointer
|
|
* is only linked, NOT copied, into the data structure of the fw_cfg device.
|
|
*/
|
|
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len);
|
|
|
|
/**
|
|
* fw_cfg_add_string:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @value: NUL-terminated ascii string
|
|
*
|
|
* Add a new fw_cfg item, available by selecting the given key. The item
|
|
* data will consist of a dynamically allocated copy of the provided string,
|
|
* including its NUL terminator.
|
|
*/
|
|
void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
|
|
|
|
/**
|
|
* fw_cfg_add_i16:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @value: 16-bit integer
|
|
*
|
|
* Add a new fw_cfg item, available by selecting the given key. The item
|
|
* data will consist of a dynamically allocated copy of the given 16-bit
|
|
* value, converted to little-endian representation.
|
|
*/
|
|
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
|
|
|
|
/**
|
|
* fw_cfg_modify_i16:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @value: 16-bit integer
|
|
*
|
|
* Replace the fw_cfg item available by selecting the given key. The new
|
|
* data will consist of a dynamically allocated copy of the given 16-bit
|
|
* value, converted to little-endian representation. The data being replaced,
|
|
* assumed to have been dynamically allocated during an earlier call to
|
|
* either fw_cfg_add_i16() or fw_cfg_modify_i16(), is freed before returning.
|
|
*/
|
|
void fw_cfg_modify_i16(FWCfgState *s, uint16_t key, uint16_t value);
|
|
|
|
/**
|
|
* fw_cfg_add_i32:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @value: 32-bit integer
|
|
*
|
|
* Add a new fw_cfg item, available by selecting the given key. The item
|
|
* data will consist of a dynamically allocated copy of the given 32-bit
|
|
* value, converted to little-endian representation.
|
|
*/
|
|
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
|
|
|
|
/**
|
|
* fw_cfg_add_i64:
|
|
* @s: fw_cfg device being modified
|
|
* @key: selector key value for new fw_cfg item
|
|
* @value: 64-bit integer
|
|
*
|
|
* Add a new fw_cfg item, available by selecting the given key. The item
|
|
* data will consist of a dynamically allocated copy of the given 64-bit
|
|
* value, converted to little-endian representation.
|
|
*/
|
|
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
|
|
|
|
/**
|
|
* fw_cfg_add_file:
|
|
* @s: fw_cfg device being modified
|
|
* @filename: name of new fw_cfg file item
|
|
* @data: pointer to start of item data
|
|
* @len: size of item data
|
|
*
|
|
* Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
|
|
* referenced by the starting pointer is only linked, NOT copied, into the
|
|
* data structure of the fw_cfg device.
|
|
* The next available (unused) selector key starting at FW_CFG_FILE_FIRST
|
|
* will be used; also, a new entry will be added to the file directory
|
|
* structure residing at key value FW_CFG_FILE_DIR, containing the item name,
|
|
* data size, and assigned selector key value.
|
|
*/
|
|
void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data,
|
|
size_t len);
|
|
|
|
/**
|
|
* fw_cfg_add_file_callback:
|
|
* @s: fw_cfg device being modified
|
|
* @filename: name of new fw_cfg file item
|
|
* @callback: callback function
|
|
* @callback_opaque: argument to be passed into callback function
|
|
* @data: pointer to start of item data
|
|
* @len: size of item data
|
|
*
|
|
* Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
|
|
* referenced by the starting pointer is only linked, NOT copied, into the
|
|
* data structure of the fw_cfg device.
|
|
* The next available (unused) selector key starting at FW_CFG_FILE_FIRST
|
|
* will be used; also, a new entry will be added to the file directory
|
|
* structure residing at key value FW_CFG_FILE_DIR, containing the item name,
|
|
* data size, and assigned selector key value.
|
|
* Additionally, set a callback function (and argument) to be called each
|
|
* time this item is selected (by having its selector key either written to
|
|
* the fw_cfg control register, or passed to QEMU in FWCfgDmaAccess.control
|
|
* with FW_CFG_DMA_CTL_SELECT).
|
|
*/
|
|
void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
|
|
FWCfgReadCallback callback, void *callback_opaque,
|
|
void *data, size_t len);
|
|
|
|
/**
|
|
* fw_cfg_modify_file:
|
|
* @s: fw_cfg device being modified
|
|
* @filename: name of new fw_cfg file item
|
|
* @data: pointer to start of item data
|
|
* @len: size of item data
|
|
*
|
|
* Replace a NAMED fw_cfg item. If an existing item is found, its callback
|
|
* information will be cleared, and a pointer to its data will be returned
|
|
* to the caller, so that it may be freed if necessary. If an existing item
|
|
* is not found, this call defaults to fw_cfg_add_file(), and NULL is
|
|
* returned to the caller.
|
|
* In either case, the new item data is only linked, NOT copied, into the
|
|
* data structure of the fw_cfg device.
|
|
*
|
|
* Returns: pointer to old item's data, or NULL if old item does not exist.
|
|
*/
|
|
void *fw_cfg_modify_file(FWCfgState *s, const char *filename, void *data,
|
|
size_t len);
|
|
|
|
FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
|
|
AddressSpace *dma_as);
|
|
FWCfgState *fw_cfg_init_io(uint32_t iobase);
|
|
FWCfgState *fw_cfg_init_mem(hwaddr ctl_addr, hwaddr data_addr);
|
|
FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr,
|
|
hwaddr data_addr, uint32_t data_width,
|
|
hwaddr dma_addr, AddressSpace *dma_as);
|
|
|
|
FWCfgState *fw_cfg_find(void);
|
|
|
|
#endif
|