'\" te
.\"  Copyright (c) 2005, Sun Microsystems, Inc.  All Rights Reserved
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.TH DDI_MEM_GET8 9F "Nov 1, 2005"
.SH NAME
ddi_mem_get8, ddi_mem_get16, ddi_mem_get32, ddi_mem_get64
\- read data from mapped device in the memory space or allocated DMA memory
.SH SYNOPSIS
.nf
#include <sys/ddi.h>
#include <sys/sunddi.h>



\fBuint8_t\fR \fBddi_mem_get8\fR(\fBddi_acc_handle_t\fR \fIhandle\fR, \fBuint8_t *\fR\fIdev_addr\fR);
.fi

.LP
.nf
\fBuint16_t\fR \fBddi_mem_get16\fR(\fBddi_acc_handle_t\fR \fIhandle\fR, \fBuint16_t *\fR \fIdev_addr\fR);
.fi

.LP
.nf
\fBuint32_t\fR \fBddi_mem_get32\fR(\fBddi_acc_handle_t\fR \fIhandle\fR, \fBuint32_t *\fR\fIdev_addr\fR);
.fi

.LP
.nf
\fBuint64_t\fR \fBddi_mem_get64\fR(\fBddi_acc_handle_t\fR \fIhandle\fR, \fBuint64_t *\fR\fIdev_addr\fR);
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI). The \fBddi_mem_get8()\fR,
\fBddi_mem_get16()\fR, \fBddi_mem_get32()\fR, \fBddi_mem_get64()\fR,
\fBddi_mem_getb()\fR, \fBddi_mem_getl()\fR, \fBddi_mem_getll()\fR, and
\fBddi_mem_getw()\fR functions are obsolete. The \fBddi_get8\fR(9F) function
replaces \fBddi_mem_get8()\fR. The \fBddi_get16\fR(9F) function replaces
\fBddi_mem_get16()\fR. The \fBddi_get32\fR(9F) function replaces
\fBddi_mem_get32()\fR. The \fBddi_get64\fR(9F) function replaces
\fBddi_mem_get64()\fR.
.SH PARAMETERS
.ne 2
.na
\fB\fIhandle\fR\fR
.ad
.RS 12n
The data access handle returned from setup calls, such as
\fBddi_regs_map_setup\fR(9F).
.RE

.sp
.ne 2
.na
\fB\fIdev_addr\fR\fR
.ad
.RS 12n
Base device address.
.RE

.SH DESCRIPTION
These routines generate a read of various sizes from memory space or allocated
\fBDMA \fRmemory. The \fBddi_mem_get8()\fR, \fBddi_mem_get16()\fR,
\fBddi_mem_get32()\fR, and \fBddi_mem_get64()\fR functions read 8 bits, 16
bits, 32 bits and 64 bits of data, respectively, from the device address,
\fIdev_addr\fR, in memory space.
.sp
.LP
Each individual datum 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.
.SH CONTEXT
These functions can be called from user, kernel, or interrupt context.
.SH ATTRIBUTES
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Obsolete
.TE

.SH SEE ALSO
\fBddi_get8\fR(9F), \fBddi_get16\fR(9F), \fBddi_get32\fR(9F),
\fBddi_get64\fR(9F), \fBddi_mem_put8\fR(9F), \fBddi_mem_rep_get8\fR(9F),
\fBddi_mem_rep_put8\fR(9F), \fBddi_regs_map_setup\fR(9F),
\fBddi_device_acc_attr\fR(9S)