02-28-2014
I don't think there is enough detail here. It is not clear what the logic should be. This in not stated well enough to be programmed.
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LEARN ABOUT OPENSOLARIS
ddi_fm_dma_err_clear
ddi_fm_acc_err_clear(9F) Kernel Functions for Drivers ddi_fm_acc_err_clear(9F)
NAME
ddi_fm_acc_err_clear, ddi_fm_dma_err_clear - clear the error status for an access or DMA handle
SYNOPSIS
#include <sys/ndifma.h>
void ddi_fm_acc_err_clear(ddi_acc_handle_t acc_handle,
int version);
void ddi_fm_dma_err_clear(ddi_dma_handle_t dma_handle,
int version);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
PARAMETERS
acc_handle Data access handle obtained from a previous call to ddi_regs_map_setup(9F), ddi_dma_mem_alloc(9F), or to a similar function.
dma_handle DMA handle obtained from a previous call to ddi_dma_mem_alloc(9F) or one of its derivatives.
version Version number of ddi_fm_error_t.
DESCRIPTION
The ddi_fm_dma_err_clear() and ddi_fm_acc_err_clear() functions clear the error status of a DMA or access handle respectively.
Once cleared, the driver is again able to access the mapped registers or memory using programmed I/O through the handle.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5), ddi_dma_mem_alloc(9F), ddi_fm_acc_err_get(9F), ddi_fm_dma_err_get(9F), ddi_regs_map_setup(9F)
Writing Device Drivers
SunOS 5.11 10 May 2007 ddi_fm_acc_err_clear(9F)