illumos: manual page: csx

CSX_REPPUT8(9F) Kernel Functions for Drivers CSX_REPPUT8(9F)

NAME

csx_RepPut8, csx_RepPut16, csx_RepPut32, csx_RepPut64 - write
repetitively to the device register

SYNOPSIS

#include <sys/pccard.h>

void csx_RepPut8(acc_handle_t handle, uint8_t *hostaddr, uint32_t offset,
uint32_t repcount, uint32_t flags);

void csx_RepPut16(acc_handle_t handle, uint16_t *hostaddr, uint32_t offset,
uint32_t repcount, uint32_t flags);

void csx_RepPut32(acc_handle_t handle, uint32_t *hostaddr, uint32_t offset,
uint32_t repcount, uint32_t flags);

void csx_RepPut64(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 writes of various sizes to the mapped
memory or device register.

The csx_RepPut8(), csx_RepPut16(), csx_RepPut32(), and csx_RepPut64()
functions generate repcount writes of 8 bits, 16 bits, 32 bits, and 64
bits of data, respectively, to the device address represented by the
handle, handle, at an offset in bytes represented by the offset, offset.
The data written is read consecutively from 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 write 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 writing to a data register.

CONTEXT