minix/include/ddekit/resources.h

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#ifndef _DDEKIT_RESOURCES_H
#define _DDEKIT_RESOURCES_H
#include <ddekit/ddekit.h>
#include <ddekit/types.h>
/*
* request/release an isa DMA-channel
*/
int ddekit_request_dma(int nr);
int ddekit_release_dma(int nr);
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/*
* request/release an io-port range starting at addr start, lenght of count
*/
int ddekit_request_io(ddekit_addr_t start, ddekit_addr_t count);
int ddekit_release_io(ddekit_addr_t start, ddekit_addr_t count);
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/*
* request an IO-Memory mapping from address start to vaddr of the length count
*/
int ddekit_request_mem(ddekit_addr_t start, ddekit_addr_t count,
ddekit_addr_t *vaddr);
int ddekit_release_mem(ddekit_addr_t start, ddekit_addr_t count);
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/**
* Read I/O port (byte)
*
* \param port port to read
*
* \return value read from port
*/
unsigned char ddekit_inb(ddekit_addr_t port);
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/**
* Read I/O port (2-byte)
*
* \param port port to read
*
* \return value read from port
*/
unsigned short ddekit_inw(ddekit_addr_t port);
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/**
* Read I/O port (4-byte)
*
* \param port port to read
*
* \return value read from port
*/
unsigned long ddekit_inl(ddekit_addr_t port);
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/**
* Write I/O port (byte)
*
* \param port port to write
* \param val value to write
*/
void ddekit_outb(ddekit_addr_t port, unsigned char val);
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/**
* Write I/O port (2-byte)
*
* \param port port to write
* \param val value to write
*/
void ddekit_outw(ddekit_addr_t port, unsigned short val);
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/**
* Write I/O port (4-byte)
*
* \param port port to write
* \param val value to write
*/
void ddekit_outl(ddekit_addr_t port, unsigned long val);
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#endif