include/kernel/bus/isa/isa.h

   1 /*
   2 ** Copyright 2002, Thomas Kurschel. All rights reserved.
   3 ** Distributed under the terms of the NewOS License.
   4 */
   5
   6 // this is not to be taken seriously - it's just a simple module
   7
   8 #ifndef __ISA_H__
   9 #define __ISA_H__
  10
  11 #define ISA_MODULE_NAME "bus_managers/isa/v1"
  12
  13 typedef struct {
  14         uint8 (*read_io_8) (int mapped_io_addr);
  15         void (*write_io_8) (int mapped_io_addr, uint8 value);
  16         uint16 (*read_io_16) (int mapped_io_addr);
  17         void (*write_io_16) (int mapped_io_addr, uint16 value);
  18         uint32 (*read_io_32) (int mapped_io_addr);
  19         void (*write_io_32) (int mapped_io_addr, uint32 value);
  20
  21         int (*allocate_iomem) ( addr_t base, size_t len );
  22         int (*release_iomem) ( addr_t base, size_t len );
  23
  24         int (*allocate_ioports) ( uint16 ioport_base, size_t len );
  25         int (*release_ioports) ( uint16 ioport_base, size_t len );
  26
  27         int (*get_dma_buffer) ( void **vaddr, void **paddr );
  28         int (*start_floppy_dma) ( void *paddr, size_t size, bool write ); // XXX make this more generic
  29 } isa_bus_manager;
  30
  31 #endif