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OpenStep 4.2J (Developer)
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driverkit
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i386
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IOPCIDirectDevice.h
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1995-10-26
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68 lines
/*
* Copyright (c) 1994 NeXT Computer, Inc.
*
* PCI direct device interface.
*
* HISTORY
*
* 19 Aug 1994 Dean Reece at NeXT
* Added class methods.
*
* 13 May 1994 Dean Reece at NeXT
* Created.
*/
#import <driverkit/IODirectDevice.h>
#import <driverkit/i386/PCI.h> /* IOPCIConfigSpace defined */
@interface IODirectDevice (IOPCIDirectDevice)
/*
* Returns YES if PCI Bus support is enabled. Returns NO otherwise.
*/
+ (BOOL)isPCIPresent;
- (BOOL)isPCIPresent;
/*
* Reads the device's entire configuration space. Returns IO_R_SUCCESS if
* successful. If this method fails, the driver should make no assumptions
* about the state of the data returned in the IOPCIConfigSpace struct.
*/
+ (IOReturn)getPCIConfigSpace: (IOPCIConfigSpace *) configSpace
withDeviceDescription: descr;
- (IOReturn)getPCIConfigSpace: (IOPCIConfigSpace *) configSpace;
/*
* Writes the device's entire configuration space. Returns IO_R_SUCCESS if
* successful. If this method fails, the driver should make no assumptions
* about the state of the device's configuration space.
*/
+ (IOReturn)setPCIConfigSpace: (IOPCIConfigSpace *) configSpace
withDeviceDescription: descr;
- (IOReturn)setPCIConfigSpace: (IOPCIConfigSpace *) configSpace;
/*
* Reads from the device's configuration space. All access are 32 bits wide
* and the address must be aligned as such.
*/
+ (IOReturn)getPCIConfigData: (unsigned long *) data
atRegister: (unsigned char) address
withDeviceDescription: descr;
- (IOReturn)getPCIConfigData: (unsigned long *) data
atRegister: (unsigned char) address;
/*
* Writes to the device's configuration space. All access are 32 bits wide
* and the address must be aligned as such.
*/
+ (IOReturn)setPCIConfigData: (unsigned long) data
atRegister: (unsigned char) address
withDeviceDescription: descr;
- (IOReturn)setPCIConfigData: (unsigned long) data
atRegister: (unsigned char) address;
@end