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| Kernel Functions for Drivers | ddi_dma_htoc(9F) |
| | ddi_dma_htoc - convert a DMA handle to a DMA address cookie |
SYNOPSIS
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#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_htoc(ddi_dma_handle_t handle, off_t off, ddi_dma_cookie_t *cookiep); |
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Solaris SPARC DDI specific (Solaris SPARC DDI).
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ddi_dma_htoc() takes a DMA handle (established by ddi_dma_setup(9F)), and fills in the cookie pointed to by cookiep with the appropriate address, length, and bus type to be used to program the DMA engine.
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ddi_dma_htoc() returns:
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DDI_SUCCESS
- Successfully filled in the cookie pointed to by cookiep.
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DDI_FAILURE
- Failed to successfully fill in the cookie.
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ddi_dma_htoc() can be called from user or interrupt context.
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