ddi_rep_putb(9F) manual page
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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
#include <sys/ddi.h>
#include <sys/sunddi.h>
void ddi_rep_putb(ddi_acc_handle_t handle, uchar_t
*host_addr, uchar_t *dev_addr, uint_t repcount, ulong_t flags);
void
ddi_rep_putw(ddi_acc_handle_t handle, ushort_t *host_addr, ushort_t *dev_addr,
uint_t repcount, ulong_t flags);
void ddi_rep_putl(ddi_acc_handle_t handle,
ulong_t *host_addr, ulong_t *dev_addr, uint_t repcount, ulong_t flags);
void ddi_rep_putll(ddi_acc_handle_t handle, unsigned long long *host_addr,
unsigned long long *dev_addr, uint_t repcount, ulong_t flags);
Solaris DDI specific (Solaris DDI).
- 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.
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_putb(),
ddi_rep_putw(), ddi_rep_putl(), and ddi_rep_putll() 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 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.
These functions can be called from
user, kernel, or interrupt context.
ddi_getb(9F)
, ddi_putb(9F)
,
ddi_regs_map_free(9F)
, ddi_regs_map_setup(9F)
, ddi_rep_getb(9F)
, ddi_device_acc_attr(9S)
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