diff options
Diffstat (limited to 'rwhandler.h')
-rw-r--r-- | rwhandler.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/rwhandler.h b/rwhandler.h new file mode 100644 index 0000000000..b2a5790548 --- /dev/null +++ b/rwhandler.h @@ -0,0 +1,27 @@ +#ifndef READ_WRITE_HANDLER_H +#define READ_WRITE_HANDLER_H + +#include "qemu-common.h" +#include "ioport.h" + +typedef struct ReadWriteHandler ReadWriteHandler; + +/* len is guaranteed to be one of 1, 2 or 4, addr is guaranteed to fit in an + * appropriate type (io/memory/etc). They do not need to be range checked. */ +typedef void WriteHandlerFunc(ReadWriteHandler *, pcibus_t addr, + uint32_t value, int len); +typedef uint32_t ReadHandlerFunc(ReadWriteHandler *, pcibus_t addr, int len); + +struct ReadWriteHandler { + WriteHandlerFunc *write; + ReadHandlerFunc *read; +}; + +/* Helpers for when we want to use a single routine with length. */ +/* CPU memory handler: both read and write must be present. */ +int cpu_register_io_memory_simple(ReadWriteHandler *, int endian); +/* io port handler: can supply only read or write handlers. */ +int register_ioport_simple(ReadWriteHandler *, + pio_addr_t start, int length, int size); + +#endif |