xref: /titanic_51/usr/src/man/man9f/pci_config_get8.9f (revision e7987fc39a2e4ac358b1b97438f5d6f56c43095e)
te
Copyright (c) 2005, Sun Microsystems, Inc., All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
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]
PCI_CONFIG_GET8 9F "Nov 1, 2005"
NAME
pci_config_get8, pci_config_get16, pci_config_get32, pci_config_get64, pci_config_put8, pci_config_put16, pci_config_put32, pci_config_put64, pci_config_getb, pci_config_getl, pci_config_getll, pci_config_getw, pci_config_putb, pci_config_putl, pci_config_putll, pci_config_putw - read or write single datum of various sizes to the PCI Local Bus Configuration space
SYNOPSIS

#include <sys/ddi.h>
#include <sys/sunddi.h>



uint8_t pci_config_get8(ddi_acc_handle_t handle, off_t offset);

uint16_t pci_config_get16(ddi_acc_handle_t handle, off_t offset);

uint32_t pci_config_get32(ddi_acc_handle_t handle, off_t offset);

uint64_t pci_config_get64(ddi_acc_handle_t handle, off_t offset);

void pci_config_put8(ddi_acc_handle_t handle, off_t offset,
 uint8_t value);

void pci_config_put16(ddi_acc_handle_t handle, off_t offset,
 uint16_t value);

void pci_config_put32(ddi_acc_handle_t handle, off_t offset,
 uint32_t value);

void pci_config_put64(ddi_acc_handle_t handle, off_t offset,
 uint64_t value);
INTERFACE LEVEL

Solaris DDI specific (Solaris DDI). The pci_config_getb(), pci_config_getl(), pci_config_getll(), pci_config_getw(), pci_config_putb(), pci_config_putl(), pci_config_putll(), and pci_config_putw() functions are obsolete. The pci_config_get8() function replaces pci_config_getb(). The pci_config_get32() function replaces pci_config_getl(). The pci_config_get64() function replaces pci_config_getll(). The pci_config_get16() function replaces pci_config_getw(). The pci_config_put8() function replaces pci_config_putb(). The pci_config_put32() function replaces pci_config_putl(). The pci_config_put64() function replaces pci_config_putll(). The pci_config_put16() function replaces pci_config_putw().

PARAMETERS
handle

The data access handle returned from pci_config_setup(9F).

offset

Byte offset from the beginning of the PCI Configuration space.

value

Output data.

DESCRIPTION

These routines read or write a single datum of various sizes from or to the PCI Local Bus Configuration space. The pci_config_get8(), pci_config_get16(), pci_config_get32(), and pci_config_get64() functions read 8 bits, 16 bits, 32 bits, and 64 bits of data, respectively. The pci_config_put8(), pci_config_put16(), pci_config_put32(), and pci_config_put64() functions write 8 bits, 16 bits, 32 bits, and 64 bits of data, respectively. The offset argument must be a multiple of the datum size.

Since th PCI Local Bus Configuration space is represented in little endian data format, these functions translate the data from or to native host format to or from little endian format.

pci_config_setup(9F) must be called before invoking these functions.

RETURN VALUES

pci_config_get8(), pci_config_get16(), pci_config_get32(), and pci_config_get64() return the value read from the PCI Local Bus Configuration space.

CONTEXT

These routines can be called from user, kernel, or interrupt context.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability
pci_config_getb(), pci_config_getl(), pci_config_getll(), pci_config_getw(), pci_config_putb(), pci_config_putl(), pci_config_putll(), pci_config_putw() are Obsolete pci_config_get8(), pci_config_get16(), pci_config_get32(), pci_config_get64(), pci_config_put8(), pci_config_put16(), pci_config_put32(), pci_config_put64() are Committed
SEE ALSO

attributes(5), pci_config_setup(9F), pci_config_teardown(9F)