--- /dev/null
+/*
+ * _chnl_sm.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+
+/*
+ * ======== _chnl_sm.h ========
+ * Description:
+ * Private header file defining channel manager and channel objects for
+ * a shared memory channel driver.
+ *
+ * Public Functions:
+ * None.
+ *
+ * Notes:
+ * Shared between the modules implementing the shared memory channel class
+ * library.
+ *
+ *! Revision History:
+ *! ================
+ *! 15-Oct-2002 kc Removed legacy PERF code.
+ *! 12-Jan-2002 ag Removed unused gppReqIO & ddmaChnlId DDMA fields.
+ *! Added zero-copy chnl descriptor array: zchnldesc.
+ *! 21-Dec-2001 ag Moved descPaGpp to private chnl obj from chnl descriptor.
+ *! 20-May-2001 ag/jeh Removed fShmSyms field from CHNL_MGR.
+ *! 04-Feb-2001 ag DSP-DMA support added.
+ *! 26-Oct-2000 jeh Added arg and resvd to SHM control structure. Added dwArg
+ *! to CHNL_IRP.
+ *! 16-Oct-2000 jeh Removed #ifdef DEBUG from around channel object's cIOCs
+ *! field, added cIOReqs.
+ *! 20-Jan-2000 ag: Incorporated code review comments.
+ *! 05-Jan-2000 ag: Text format cleanup.
+ *! 03-Nov-1999 ag: Added szEventName[] to CHNL object for name event support.
+ *! 02-Nov-1999 ag: _SHM_BEG & _END Syms from COFF now used for IO and SM CLASS.
+ *! 27-Oct-1999 jeh Define SHM structure to work for 16-bit targets.
+ *! 25-May-1999 jg: Added target side symbol names for share memory buffer
+ *! 03-Jan-1997 gp: Added fSharedIRQ field.
+ *! 22-Oct-1996 gp: Made dwProcessID a handle.
+ *! 09-Sep-1996 gp: Added dwProcessID field to CHNL_OBJECT.
+ *! 13-Aug-1996 gp: Created.
+ */
+
+#ifndef _CHNL_SM_
+#define _CHNL_SM_
+
+#include <dspbridge/wcd.h>
+#include <dspbridge/wmd.h>
+#include <dspbridge/dpc.h>
+
+#include <dspbridge/list.h>
+#include <dspbridge/ntfy.h>
+
+/*
+ * These target side symbols define the beginning and ending addresses
+ * of shared memory buffer. They are defined in the *cfg.cmd file by
+ * cdb code.
+ */
+#define CHNL_SHARED_BUFFER_BASE_SYM "_SHM_BEG"
+#define CHNL_SHARED_BUFFER_LIMIT_SYM "_SHM_END"
+#define BRIDGEINIT_BIOSGPTIMER "_BRIDGEINIT_BIOSGPTIMER"
+#define BRIDGEINIT_LOADMON_GPTIMER "_BRIDGEINIT_LOADMON_GPTIMER"
+
+#ifndef _CHNL_WORDSIZE
+#define _CHNL_WORDSIZE 4 /* default _CHNL_WORDSIZE is 2 bytes/word */
+#endif
+
+#define MAXOPPS 16
+
+struct oppTableEntry {
+ u32 voltage;
+ u32 frequency;
+ u32 minFreq;
+ u32 maxFreq;
+} ;
+
+struct oppStruct {
+ u32 currOppPt;
+ u32 numOppPts;
+ struct oppTableEntry oppPoint[MAXOPPS];
+} ;
+
+/* Request to MPU */
+struct oppRqstStruct {
+ u32 rqstDspFreq;
+ u32 rqstOppPt;
+};
+
+/* Info to MPU */
+struct loadMonStruct {
+ u32 currDspLoad;
+ u32 currDspFreq;
+ u32 predDspLoad;
+ u32 predDspFreq;
+};
+
+ enum SHM_DESCTYPE {
+ SHM_CURROPP = 0,
+ SHM_OPPINFO = 1,
+ SHM_GETOPP = 2, /* Get DSP requested OPP info */
+ } ;
+
+/* Structure in shared between DSP and PC for communication.*/
+ struct SHM {
+ u32 dspFreeMask; /* Written by DSP, read by PC. */
+ u32 hostFreeMask; /* Written by PC, read by DSP */
+
+ u32 inputFull; /* Input channel has unread data. */
+ u32 inputId; /* Channel for which input is available. */
+ u32 inputSize; /* Size of data block (in DSP words). */
+
+ u32 outputFull; /* Output channel has unread data. */
+ u32 outputId; /* Channel for which output is available. */
+ u32 outputSize; /* Size of data block (in DSP words). */
+
+ u32 arg; /* Arg for Issue/Reclaim (23 bits for 55x). */
+ u32 resvd; /* Keep structure size even for 32-bit DSPs */
+
+ /* Operating Point structure */
+ struct oppStruct oppTableStruct;
+ /* Operating Point Request structure */
+ struct oppRqstStruct oppRequest;
+ /* load monitor information structure*/
+ struct loadMonStruct loadMonInfo;
+ char dummy[184]; /* padding to 256 byte boundary */
+ u32 shm_dbg_var[64]; /* shared memory debug variables */
+ } ;
+
+ /* Channel Manager: only one created per board: */
+ struct CHNL_MGR {
+ u32 dwSignature; /* Used for object validation */
+ /* Function interface to WMD */
+ struct WMD_DRV_INTERFACE *pIntfFxns;
+ struct IO_MGR *hIOMgr; /* IO manager */
+ /* Device this board represents */
+ struct DEV_OBJECT *hDevObject;
+
+ /* These fields initialized in WMD_CHNL_Create(): */
+ u32 dwOutputMask; /* Host output channels w/ full buffers */
+ u32 dwLastOutput; /* Last output channel fired from DPC */
+ /* Critical section object handle */
+ struct SYNC_CSOBJECT *hCSObj;
+ u32 uWordSize; /* Size in bytes of DSP word */
+ u32 cChannels; /* Total number of channels */
+ u32 cOpenChannels; /* Total number of open channels */
+ struct CHNL_OBJECT **apChannel; /* Array of channels */
+ u32 dwType; /* Type of channel class library */
+ /* If no SHM syms, return for CHNL_Open */
+ DSP_STATUS chnlOpenStatus;
+ } ;
+
+/*
+ * Channel: up to CHNL_MAXCHANNELS per board or if DSP-DMA supported then
+ * up to CHNL_MAXCHANNELS + CHNL_MAXDDMACHNLS per board.
+ */
+ struct CHNL_OBJECT {
+ u32 dwSignature; /* Used for object validation */
+ /* Pointer back to channel manager */
+ struct CHNL_MGR *pChnlMgr;
+ u32 uId; /* Channel id */
+ u32 dwState; /* Current channel state */
+ u32 uMode; /* Chnl mode and attributes */
+ /* Chnl I/O completion event (user mode) */
+ HANDLE hUserEvent;
+ /* Abstract syncronization object */
+ struct SYNC_OBJECT *hSyncEvent;
+ /* Name of Sync event */
+ char szEventName[SYNC_MAXNAMELENGTH + 1];
+ u32 hProcess; /* Process which created this channel */
+ u32 pCBArg; /* Argument to use with callback */
+ struct LST_LIST *pIORequests; /* List of IOR's to driver */
+ s32 cIOCs; /* Number of IOC's in queue */
+ s32 cIOReqs; /* Number of IORequests in queue */
+ s32 cChirps; /* Initial number of free Irps */
+ /* List of IOC's from driver */
+ struct LST_LIST *pIOCompletions;
+ struct LST_LIST *pFreeList; /* List of free Irps */
+ struct NTFY_OBJECT *hNtfy;
+ u32 cBytesMoved; /* Total number of bytes transfered */
+
+ /* For DSP-DMA */
+
+ /* Type of chnl transport:CHNL_[PCPY][DDMA] */
+ u32 uChnlType;
+ } ;
+
+/* I/O Request/completion packet: */
+ struct CHNL_IRP {
+ struct LST_ELEM link; /* Link to next CHIRP in queue. */
+ /* Buffer to be filled/emptied. (User) */
+ u8 *pHostUserBuf;
+ /* Buffer to be filled/emptied. (System) */
+ u8 *pHostSysBuf;
+ u32 dwArg; /* Issue/Reclaim argument. */
+ u32 uDspAddr; /* Transfer address on DSP side. */
+ u32 cBytes; /* Bytes transferred. */
+ u32 cBufSize; /* Actual buffer size when allocated. */
+ u32 status; /* Status of IO completion. */
+ } ;
+
+#endif /* _CHNL_SM_ */
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