CSX_REPGET8(9F) Kernel Functions for Drivers CSX_REPGET8(9F)
NAME
csx_RepGet8, csx_RepGet16, csx_RepGet32, csx_RepGet64 - read
repetitively from the device register
SYNOPSIS
#include <sys/pccard.h>
void csx_RepGet8(
acc_handle_t handle,
uint8_t *hostaddr,
uint32_t offset,
uint32_t repcount,
uint32_t flags);
void csx_RepGet16(
acc_handle_t handle,
uint16_t *hostaddr,
uint32_t offset,
uint32_t repcount,
uint32_t flags);
void csx_RepGet32(
acc_handle_t handle,
uint32_t *hostaddr,
uint32_t offset,
uint32_t repcount,
uint32_t flags);
void csx_RepGet64(
acc_handle_t handle,
uint64_t *hostaddr,
uint32_t offset,
uint32_t repcount,
uint32_t flags);
INTERFACE LEVEL
illumos
DDI Specific (illumos
DDI)
PARAMETERS
handle The access handle returned from
csx_RequestIO(9F),
csx_RequestWindow(9F), or
csx_DupHandle(9F).
hostaddr Source host address.
offset The offset in bytes from the base of the mapped
resource.
repcount Number of data accesses to perform.
flags Device address flags.
DESCRIPTION
These functions generate multiple reads of various sizes from the
mapped memory or device register.
The
csx_RepGet8(),
csx_RepGet16(),
csx_RepGet32(), and
csx_RepGet64() functions generate
repcount reads of 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. The data read is stored consecutively into the buffer pointed
to by the host address pointer,
hostaddr.
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.
When the
flags argument is set to
CS_DEV_AUTOINCR, these functions
increment the device offset,
offset, after each datum read
operation. However, when the
flags argument is set to
CS_DEV_NO_AUTOINCR, the same device offset will be used for every
datum access. For example, this flag may be useful when reading from
a data register.
CONTEXT
These functions may be called from user, kernel, or interrupt
context.
SEE ALSO
csx_DupHandle(9F),
csx_Get8(9F),
csx_GetMappedAddr(9F),
csx_Put8(9F),
csx_RepPut8(9F),
csx_RequestIO(9F),
csx_RequestWindow(9F) PC Card 95 Standard, PCMCIA/JEIDA
July 19, 1996 CSX_REPGET8(9F)
