xref: /illumos-gate/usr/src/man/man9f/csx_Get8.9f (revision afab0816ecb604f0099a09ad8ee398f0d7b77b1c)
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Copyright (c) 1996, Sun Microsystems, Inc. All Rights Reserved
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
csx_Get8 9F "19 Jul 1996" "SunOS 5.11" "Kernel Functions for Drivers"
NAME
csx_Get8, csx_Get16, csx_Get32, csx_Get64 - read data from device address
SYNOPSIS

#include <sys/pccard.h>



uint8_t csx_Get8(acc_handle_t handle, uint32_t offset);

uint16_t csx_Get16(acc_handle_t handle, uint32_t offset);

uint32_t csx_Get32(acc_handle_t handle, uint32_t offset);

uint64_t csx_Get64(acc_handle_t handle, uint64_t offset);
INTERFACE LEVEL

Solaris DDI Specific (Solaris DDI)

PARAMETERS

handle

The access handle returned from csx_RequestIO(9F), csx_RequestWindow(9F), or csx_DupHandle(9F).

offset

The offset in bytes from the base of the mapped resource.

DESCRIPTION

These functions generate a read of various sizes from the mapped memory or device register.

The csx_Get8(), csx_Get16(), csx_Get32(), and csx_Get64() functions read 8 bits, 16 bits, 32 bits, and 64 bits of data, respectively, from the device address represented by the handle, handle, at an offset in bytes represented by the offset, offset.

Data that consists of more than one byte will automatically be translated to maintain a consistent view between the host and the device based on the encoded information in the data access handle. The translation may involve byte swapping if the host and the device have incompatible endian characteristics.

RETURN VALUES

These functions return the value read from the mapped address.

CONTEXT

These functions may be called from user, kernel, or interrupt context.

SEE ALSO

csx_DupHandle(9F), csx_GetMappedAddr(9F), csx_Put8(9F), csx_RepGet8(9F), csx_RepPut8(9F), csx_RequestIO(9F), csx_RequestWindow(9F)

PC Card 95 Standard, PCMCIA/JEIDA