Content-type: text/html Man page of ddi_mem_rep_put8

ddi_mem_rep_put8

Section: Kernel Functions for Drivers (9F)
Updated: 28 Oct 1996
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NAME

ddi_mem_rep_put8, ddi_mem_rep_put16, ddi_mem_rep_put32, ddi_mem_rep_put64, ddi_mem_rep_putw, ddi_mem_rep_putl, ddi_mem_rep_putll, ddi_mem_rep_putb - write multiple data to mapped device in the memory space or allocated DMA memory  

SYNOPSIS

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

void ddi_mem_rep_put8(ddi_acc_handle_t handle, uint8_t *host_addr, uint8_t *dev_addr, size_t repcount, uint_t flags);

void ddi_mem_rep_put16(ddi_acc_handle_t handle, uint16_t *host_addr, uint16_t *dev_addr, size_t repcount, uint_t flags);

void ddi_mem_rep_put32(ddi_acc_handle_t handle, uint32_t *host_addr, uint32_t *dev_addr, size_t repcount, uint_t flags);

void ddi_mem_rep_put64(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).  

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 writes to memory space or allocated DMA memory. repcount data is copied from the host address, host_addr, to the device address, dev_addr, in memory space. For each input datum, the ddi_mem_rep_put8(), ddi_mem_rep_put16(), ddi_mem_rep_put32(), and ddi_mem_rep_put64() functions write 8 bits, 16 bits, 32 bits and 64 bits of data, respectively, to the device address. dev_addr and host_addr must be aligned to the datum boundary described by the function.

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.

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 writing from a data register.  

CONTEXT

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

SEE ALSO

ddi_mem_get8(9F), ddi_mem_put8(9F), ddi_mem_rep_get8(9F), ddi_regs_map_setup(9F), ddi_device_acc_attr(9S)  

NOTES

The functions described in this manual page previously used symbolic names which specified their data access size; the function names have been changed so they now specify a fixed-width data size. See the following table for the new name equivalents:

Previous NameNew Name
ddi_mem_rep_putbddi_mem_rep_put8
ddi_mem_rep_putwddi_mem_rep_put16
ddi_mem_rep_putlddi_mem_rep_put32
ddi_mem_rep_putllddi_mem_rep_put64


 

Index

NAME
SYNOPSIS
INTERFACE LEVEL
PARAMETERS
DESCRIPTION
CONTEXT
SEE ALSO
NOTES

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Time: 02:39:37 GMT, October 02, 2010