It is accomplished ...

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00
commit 52a3801208
2025 changed files with 472889 additions and 0 deletions
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+/* 
+** Copyright 2002, Thomas Kurschel. All rights reserved.
+** Distributed under the terms of the NewOS License.
+*/
+
+// this is not to be taken seriously - it's just a simple module
+
+#ifndef __ISA_H__
+#define __ISA_H__
+
+#include <module.h>
+#include <bus.h>
+
+#define ISA_MODULE_NAME "bus_managers/isa/v1"
+
+typedef struct {
+	ulong	address;				/* memory address (little endian!) 4 bytes */
+	ushort	transfer_count;			/* # transfers minus one (little endian!) 2 bytes*/
+	uchar	reserved;				/* filler, 1byte*/
+    uchar   flag;					/* end of link flag, 1byte */
+} isa_dma_entry;
+
+typedef struct {
+	bus_manager_info   binfo;
+	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);
+	void              *(*ram_address) (const void *physical_address_in_system_memory);
+
+	long			   (*make_isa_dma_table) (
+							const void		*buffer,		/* buffer to make a table for */
+							long			buffer_size,	/* buffer size */
+							ulong			num_bits,		/* dma transfer size that will be used */
+							isa_dma_entry	*table,			/* -> caller-supplied scatter/gather table */
+							long			num_entries		/* max # entries in table */
+						);
+	long		       (*start_isa_dma) (
+							long	channel,				/* dma channel to use */
+							void	*buf,					/* buffer to transfer */
+							long	transfer_count,			/* # transfers */
+							uchar	mode,					/* mode flags */
+							uchar	e_mode					/* extended mode flags */
+						);
+	long			(*start_scattered_isa_dma) (
+							long				channel,	/* channel # to use */
+							const isa_dma_entry	*table,		/* physical address of scatter/gather table */
+							uchar				mode,		/* mode flags */
+							uchar				emode		/* extended mode flags */
+						);
+	long			(*lock_isa_dma_channel) (long channel);
+	long			(*unlock_isa_dma_channel) (long channel);
+
+} isa_bus_manager;
+
+#endif