/*
* ======== STRMWRAP_FreeBuffer ========
*/
u32 STRMWRAP_FreeBuffer(union Trapped_Args *args, void *pr_ctxt)
{
DSP_STATUS status = DSP_SOK;
u8 **apBuffer = NULL;
u32 uNumBufs = args->ARGS_STRM_FREEBUFFER.uNumBufs;
DBC_Require(uNumBufs <= MAX_BUFS);
apBuffer = MEM_Alloc((uNumBufs * sizeof(u8 *)), MEM_NONPAGED);
cp_fm_usr(apBuffer, args->ARGS_STRM_FREEBUFFER.apBuffer, status,
uNumBufs);
if (DSP_SUCCEEDED(status)) {
mutex_lock(&((struct PROCESS_CONTEXT *)pr_ctxt)->strm_lock);
status = STRM_FreeBuffer(args->ARGS_STRM_FREEBUFFER.hStream,
apBuffer, uNumBufs, pr_ctxt);
mutex_unlock(&((struct PROCESS_CONTEXT *)pr_ctxt)->strm_lock);
}
cp_to_usr(args->ARGS_STRM_FREEBUFFER.apBuffer, apBuffer, status,
uNumBufs);
if (apBuffer)
MEM_Free(apBuffer);
return status;
}
/*
* ======== STRM_AllocateBuffer ========
* Purpose:
* Allocates buffers for a stream.
*/
DSP_STATUS STRM_AllocateBuffer(struct STRM_OBJECT *hStrm, u32 uSize,
OUT u8 **apBuffer, u32 uNumBufs,
struct PROCESS_CONTEXT *pr_ctxt)
{
DSP_STATUS status = DSP_SOK;
u32 uAllocated = 0;
u32 i;
HANDLE hSTRMRes;
DBC_Require(cRefs > 0);
DBC_Require(apBuffer != NULL);
/*
* Allocate from segment specified at time of stream open.
*/
if (uSize == 0)
status = DSP_ESIZE;
if (DSP_FAILED(status))
goto func_end;
for (i = 0; i < uNumBufs; i++) {
DBC_Assert(hStrm->hXlator != NULL);
(void)CMM_XlatorAllocBuf(hStrm->hXlator, &apBuffer[i], uSize);
if (apBuffer[i] == NULL) {
status = DSP_EMEMORY;
uAllocated = i;
break;
}
}
if (DSP_FAILED(status))
STRM_FreeBuffer(hStrm, apBuffer, uAllocated, pr_ctxt);
if (DSP_FAILED(status))
goto func_end;
if (DRV_GetSTRMResElement(hStrm, &hSTRMRes, pr_ctxt) !=
DSP_ENOTFOUND)
DRV_ProcUpdateSTRMRes(uNumBufs, hSTRMRes);
func_end:
return status;
}
/*
* ======== STRM_AllocateBuffer ========
* Purpose:
* Allocates buffers for a stream.
*/
DSP_STATUS STRM_AllocateBuffer(struct STRM_OBJECT *hStrm, u32 uSize,
OUT u8 **apBuffer, u32 uNumBufs)
{
DSP_STATUS status = DSP_SOK;
u32 uAllocated = 0;
u32 i;
#ifndef RES_CLEANUP_DISABLE
DSP_STATUS res_status = DSP_SOK;
u32 hProcess;
HANDLE pCtxt = NULL;
HANDLE hDrvObject;
HANDLE hSTRMRes;
#endif
DBC_Require(cRefs > 0);
DBC_Require(apBuffer != NULL);
GT_4trace(STRM_debugMask, GT_ENTER, "STRM_AllocateBuffer: hStrm: 0x%x\t"
"uSize: 0x%x\tapBuffer: 0x%x\tuNumBufs: 0x%x\n",
hStrm, uSize, apBuffer, uNumBufs);
if (MEM_IsValidHandle(hStrm, STRM_SIGNATURE)) {
/*
* Allocate from segment specified at time of stream open.
*/
if (uSize == 0)
status = DSP_ESIZE;
}
if (DSP_FAILED(status)) {
status = DSP_EHANDLE;
goto func_end;
}
for (i = 0; i < uNumBufs; i++) {
DBC_Assert(hStrm->hXlator != NULL);
(void)CMM_XlatorAllocBuf(hStrm->hXlator, &apBuffer[i], uSize);
if (apBuffer[i] == NULL) {
GT_0trace(STRM_debugMask, GT_7CLASS,
"STRM_AllocateBuffer: "
"DSP_FAILED to alloc shared memory.\n");
status = DSP_EMEMORY;
uAllocated = i;
break;
}
}
if (DSP_FAILED(status))
STRM_FreeBuffer(hStrm, apBuffer, uAllocated);
#ifndef RES_CLEANUP_DISABLE
if (DSP_FAILED(status))
goto func_end;
/* Return PID instead of process handle */
hProcess = current->pid;
res_status = CFG_GetObject((u32 *)&hDrvObject, REG_DRV_OBJECT);
if (DSP_FAILED(res_status))
goto func_end;
DRV_GetProcContext(hProcess, (struct DRV_OBJECT *)hDrvObject,
&pCtxt, NULL, 0);
if (pCtxt != NULL) {
if (DRV_GetSTRMResElement(hStrm, &hSTRMRes, pCtxt) !=
DSP_ENOTFOUND) {
DRV_ProcUpdateSTRMRes(uNumBufs, hSTRMRes, pCtxt);
}
}
#endif
func_end:
return status;
}
