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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
ddi_mem_rep_get8, ddi_mem_rep_get16, ddi_mem_rep_get32, ddi_mem_rep_get64, - read multiple data from mapped device in the memory space or allocated DMA memory

#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);

illumos DDI specific (illumos 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) function 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(). handle host_addr dev_addr repcount flags 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 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 reading from a data register.

These functions can be called from user, kernel, or interrupt context. See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Obsolete

ddi_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)