ddi_rep_putw(9F)

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | CONTEXT | SEE ALSO | NOTES

NAME

ddi_rep_put8, ddi_rep_put16, ddi_rep_put32, ddi_rep_put64, ddi_rep_putb, ddi_rep_putw, ddi_rep_putl, ddi_rep_putll- write data to the mapped memory address, device register or allocated DMA memory address

SYNOPSIS

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

void ddi_rep_put8(ddi_acc_handle_t handle, uint8_t *host_addr, uint8_t *dev_addr, size_t repcount, uint_t flags);
void ddi_rep_put16(ddi_acc_handle_t handle, uint16_t *host_addr, uint16_t *dev_addr, size_t repcount, uint_t flags);
void ddi_rep_put32(ddi_acc_handle_t handle, uint32_t *host_addr, uint32_t *dev_addr, size_t repcount, uint_t flags);
void ddi_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 the mapped memory or device register. repcount data is copied from the host address, host_addr , to the device address, dev_addr . For each input datum, the ddi_rep_put8() , ddi_rep_put16() , ddi_rep_put32() , and ddi_rep_put64() functions write 8 bits, 16 bits, 32 bits, and 64 bits of data, respectively, to the device address, dev_addr . 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 treat the device address, dev_addr , as a memory buffer location on the device and increment 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 to a data register.

CONTEXT

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

SEE ALSO

ddi_get8(9F) , ddi_put8(9F) , ddi_regs_map_free(9F) , ddi_regs_map_setup(9F) , ddi_rep_get8(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 Name	New Name
ddi_rep_putb	ddi_rep_put8
ddi_rep_putw	ddi_rep_put16
ddi_rep_putl	ddi_rep_put32
ddi_rep_putll	ddi_rep_put64

SunOS 5.8  Last Revised 10 Sep 1996

NAME | SYNOPSIS | INTERFACE LEVEL | PARAMETERS | DESCRIPTION | CONTEXT | SEE ALSO | NOTES