FreeCalypso > hg > fc-magnetite
view src/gpf2/osl/os_mem_ir.c @ 597:f18b29e27be5
First attempt at MCSI voice path automatic switching
The function is implemented at the ACI level in both aci2 and aci3,
successfully avoids triggering the DSP bug on the first call,
but the shutdown of MCSI upon call completion is not working properly yet
in either version.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 27 Mar 2019 22:18:35 +0000 |
parents | e9bdc8184d50 |
children |
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/* * This C module is a reconstruction based on the disassembly of * os_mem.obj in frame_na7_db_ir.lib from the Leonardo package. */ /* set of included headers from COFF symtab: */ #include <stdio.h> #include <string.h> #include "nucleus.h" #include "typedefs.h" #include "os.h" #include "gdi.h" #include "os_types.h" #include "os_glob.h" extern T_OS_PART_GRP_TABLE_ENTRY PartGrpTable[]; extern T_OS_POOL_BORDER PoolBorder[]; GLOBAL LONG os_is_valid_partition(T_VOID_STRUCT *Buffer) { int i; for (i = 0; i <= MaxPoolGroups; i++) { if (PoolBorder[i].End == 0) return(OS_ERROR); if ((char *)Buffer < PoolBorder[i].Start) continue; if ((char *)Buffer >= PoolBorder[i].End) continue; return(OS_OK); } return(OS_ERROR); } GLOBAL LONG os_PartitionCheck(ULONG *ptr) { PM_HEADER *phdr; PM_PCB *pool; phdr = (PM_HEADER *)(ptr - 2); if (phdr->pm_next_available) return(OS_PARTITION_FREE); pool = phdr->pm_partition_pool; if (ptr[(pool->pm_partition_size - 4) >> 2] == GUARD_PATTERN) return(OS_OK); else return(OS_PARTITION_GUARD_PATTERN_DESTROYED); } GLOBAL LONG os_DeallocatePartition(OS_HANDLE TaskHandle, T_VOID_STRUCT *Buffer) { if (os_is_valid_partition(Buffer) != OS_OK) return(OS_ERROR); if (NU_Deallocate_Partition(Buffer) != NU_SUCCESS) return(OS_ERROR); return(OS_OK); } GLOBAL LONG os_AllocatePartition(OS_HANDLE TaskHandle, T_VOID_STRUCT **Buffer, ULONG Size, ULONG Suspend, OS_HANDLE GroupHandle) { T_OS_PART_POOL *pool, *requested_pool; ULONG nu_suspend; STATUS sts; int ret; for (pool = PartGrpTable[GroupHandle].grp_head; pool; pool = pool->next) if (Size <= pool->size) break; if (!pool) return(OS_ERROR); requested_pool = pool; ret = OS_OK; nu_suspend = NU_NO_SUSPEND; try_alloc: sts = NU_Allocate_Partition(&pool->pcb, (VOID **) Buffer, nu_suspend); switch (sts) { case NU_SUCCESS: return(ret); case NU_TIMEOUT: case NU_INVALID_SUSPEND: *Buffer = 0; return(OS_TIMEOUT); case NU_NO_PARTITION: pool = pool->next; if (pool) { ret = OS_ALLOCATED_BIGGER; goto try_alloc; } pool = requested_pool; if (Suspend) { nu_suspend = Suspend; ret = OS_WAITED; goto try_alloc; } return(OS_TIMEOUT); default: *Buffer = 0; return(OS_ERROR); } }