ddi_mem_rep_get8(9F) Kernel Functions for Drivers ddi_mem_rep_get8(9F)NAME
ddi_mem_rep_get8, ddi_mem_rep_get16, ddi_mem_rep_get32,
ddi_mem_rep_get64, ddi_mem_rep_getb, ddi_mem_rep_getl,
ddi_mem_rep_getll, ddi_mem_rep_getw - read multiple data from mapped
device in the memory space or allocated DMA memory
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
void ddi_mem_rep_get8(ddi_acc_handle_t handle,
uint8_t *host_addr, uint8_t *dev_addr, size_t repcount,
uint_t flags);
void ddi_mem_rep_get16(ddi_acc_handle_t handle,
uint16_t *host_addr, uint16_t *dev_addr, size_t repcount,
uint_t flags);
void ddi_mem_rep_get32(ddi_acc_handle_t handle,
uint32_t *host_addr, uint32_t *dev_addr, size_t repcount,
uint_t flags);
void ddi_mem_rep_get64(ddi_acc_handle_t handle,
uint64_t *host_addr, uint64_t *dev_addr, size_t repcount,
uint_t flags);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). The ddi_mem_rep_get8(),
ddi_mem_rep_get16(), ddi_mem_rep_get32(), ddi_mem_rep_get64(),
ddi_mem_rep_getb(), ddi_mem_rep_getl(), ddi_mem_rep_getll(), and
ddi_mem_rep_getw() functions are obsolete. The ddi_rep_get8(9F) func‐
tion replaces ddi_mem_rep_get8(). The ddi_rep_get16(9F) function
replaces ddi_mem_rep_get16(). The ddi_rep_get32(9F) function replaces
ddi_mem_rep_get32(). The ddi_rep_get64(9F) function replaces
ddi_mem_rep_get64(). The ddi_rep_get8(9F) function replaces
ddi_mem_rep_getb(). The ddi_rep_get32(9F) function replaces
ddi_mem_rep_getl(). The ddi_rep_get64(9F) function replaces
ddi_mem_rep_getll(). The ddi_rep_get16(9F) function replaces
ddi_mem_rep_getw().
PARAMETERS
handle The data access handle returned from setup calls, such as
ddi_regs_map_setup(9F).
host_addr Base host address.
dev_addr Base device address.
repcount Number of data accesses to perform.
flags Device address flags:
DDI_DEV_AUTOINCR Automatically increment the device
address, dev_addr, during data
accesses.
DDI_DEV_NO_AUTOINCR Do not advance the device address,
dev_addr, during data accesses.
DESCRIPTION
These routines generate multiple reads from memory space or allocated
DMA memory. repcount data is copied from the device address, dev_addr,
in memory space to the host address, host_addr. For each input datum,
the ddi_mem_rep_get8(), ddi_mem_rep_get16(), ddi_mem_rep_get32(), and
ddi_mem_rep_get64() functions read 8 bits, 16 bits, 32 bits and 64 bits
of data, respectively, from the device address, dev_addr. dev_addr and
host_addr must be aligned to the datum boundary described by the func‐
tion.
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 char‐
acteristics.
When the flags argument is set to DDI_DEV_AUTOINCR, these functions
will treat the device address, dev_addr, as a memory buffer location on
the device and increments its address on the next input datum. However,
when the flags argument is set to DDI_DEV_NO_AUTOINCR, the same device
address will be used for every datum access. For example, this flag may
be useful when reading from a data register.
CONTEXT
These functions 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 │Obsolete │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOddi_mem_get8(9F), ddi_mem_put8(9F), ddi_mem_rep_put8(9F),
ddi_regs_map_setup(9F), ddi_rep_get8(9F), ddi_rep_get16(9F),
ddi_rep_get32(9F), ddi_rep_get64(9F), ddi_device_acc_attr(9S)SunOS 5.11 1 Nov 2005 ddi_mem_rep_get8(9F)