* Copyright 2002-2003, Thomas Kurschel. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _ISA2_H
#define _ISA2_H
This is an improper name - this bus manager uses the PnP manager to
load device drivers, but calling it ISA PnP manager would be wrong as
ISA PnP information isn't used at all.
All ISA drivers must be Universal driver (see pnp_manager.h), as they
are all direct children of the ISA bus node. Having an ISA PnP bus manager
(which we don't), one node would be created per ISA device and thus you
could write Specific drivers, but under normal ISA we don't even know
how many devices are there, therefore the Universal driver trick.
Apart from the loading, the main change is the resource manager. In
a driver, you must allocate the resources before registering the node and
deallocate it when your node is removed and if the driver isn't loaded at
this time. If it is, you must delay deallocation until the driver gets
unloaded to make sure no new driver touches the same resources like you
meanwhile.
*/
#include <device_manager.h>
#include <ISA.h>
#define B_MAX_ISA_DMA_COUNT 0x10000
typedef struct isa2_module_info {
driver_module_info info;
uint8 (*read_io_8)(int mapped_io_addr);
void (*write_io_8)(int mapped_io_addr, uint8 value);
uint16 (*read_io_16)(int mapped_io_addr);
void (*write_io_16)(int mapped_io_addr, uint16 value);
uint32 (*read_io_32)(int mapped_io_addr);
void (*write_io_32)(int mapped_io_addr, uint32 value);
phys_addr_t (*ram_address)(phys_addr_t physical_address_in_system_memory);
status_t (*start_isa_dma)(
long channel,
void *buf,
long transfer_count,
uchar mode,
uchar e_mode
);
} isa2_module_info;
#define ISA_DEVICE_TYPE_NAME "isa/device/v1"
#define ISA_DRIVERS_DIR "isa"
#endif
