Maemo patchset 20101501+0m5

[h-e-n] / arch / arm / plat-omap / include / dspbridge / chnldefs.h

diff --git a/arch/arm/plat-omap/include/dspbridge/chnldefs.h b/arch/arm/plat-omap/include/dspbridge/chnldefs.h
new file mode 100644 (file)
index 0000000..9f59229
--- /dev/null
+++ b/arch/arm/plat-omap/include/dspbridge/chnldefs.h
@@ -0,0 +1,92 @@
+/*
+ * chnldefs.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.
+ */
+
+
+/*
+ *  ======== chnldefs.h ========
+ *  Purpose:
+ *      System-wide channel objects and constants.
+ *
+ *! Revision History:
+ *! ================
+ *! 19-Jan-2002 ag  Added cBufSize to IOC.
+ *! 05-Jan-2000 ag: Text format cleanup.
+ *! 02-Dec-1999 ag: Added new chnl attribute pstrEventName.
+ *! 12-Nov-1999 kc: Enabled hEvent attribute for tests.
+ *! 01-Nov-1999 ag: hEvent attribute not supported(yet).
+ *! 16-Jan-1997 gp: Moved private stuff into chnlpriv.h
+ *! 14-Jan-1997 gp: Updated based on code review feedback:
+ *!                 Removed CHNL_MODENOWAIT, CHNL_MODEDIRECT,
+ *! 03-Jan-1997 gp: Added channel class library types.
+ *! 14-Dec-1996 gp: Moved uChnlId field from CHNL_ATTRS to CHNL_Open().
+ *! 10-Dec-1996 gp: Added CHNL_IsTimedOut() macro.
+ *! 14-Nov-1996 gp: Renamed from wsxchnl.h.
+ *! 09-Sep-1996 gp: Added hReserved2 field to CHNL_ATTRS. Updated CHNL_INFO.
+ *! 10-Jul-1996 gp: Created from channel.h.
+ */
+
+#ifndef CHNLDEFS_
+#define CHNLDEFS_
+
+/* Channel id option. */
+#define CHNL_PICKFREE       (~0UL)     /* Let manager pick a free channel. */
+
+/* Channel manager limits: */
+#define CHNL_INITIOREQS      4 /* Default # of I/O requests.       */
+
+/* Channel modes */
+#define CHNL_MODETODSP       0x0000    /* Data streaming to the DSP.      */
+#define CHNL_MODEFROMDSP     0x0001    /* Data streaming from the DSP.    */
+
+/* GetIOCompletion flags */
+#define CHNL_IOCINFINITE     0xffffffff        /* Wait forever for IO completion. */
+#define CHNL_IOCNOWAIT       0x0       /* Dequeue an IOC, if available.   */
+
+/* IO Completion Record status: */
+#define CHNL_IOCSTATCOMPLETE 0x0000    /* IO Completed.             */
+#define CHNL_IOCSTATCANCEL   0x0002    /* IO was cancelled          */
+#define CHNL_IOCSTATTIMEOUT  0x0008    /* Wait for IOC timed out.   */
+#define CHNL_IOCSTATEOS      0x8000    /* End Of Stream reached.    */
+
+/* Macros for checking I/O Completion status: */
+#define CHNL_IsEOS(ioc)         (ioc.status & CHNL_IOCSTATEOS)
+#define CHNL_IsIOComplete(ioc)  (!(ioc.status & ~CHNL_IOCSTATEOS))
+#define CHNL_IsIOCancelled(ioc) (ioc.status & CHNL_IOCSTATCANCEL)
+#define CHNL_IsTimedOut(ioc)    (ioc.status & CHNL_IOCSTATTIMEOUT)
+
+/* CHNL types: */
+       typedef u32 CHNL_MODE;  /* Channel transfer mode.         */
+
+/* Channel attributes: */
+       struct CHNL_ATTRS {
+               u32 uIOReqs;    /* Max # of preallocated I/O requests.    */
+               HANDLE hEvent;  /* User supplied auto-reset event object. */
+               char *pstrEventName;    /* Ptr to name of user event object.  */
+               HANDLE hReserved1;      /* Reserved for future use.         */
+               u32 hReserved2; /* Reserved for future use.        */
+
+       };
+
+/* I/O completion record: */
+       struct CHNL_IOC {
+               void *pBuf;     /* Buffer to be filled/emptied.           */
+               u32 cBytes;     /* Bytes transferred.                     */
+               u32 cBufSize;   /* Actual buffer size in bytes            */
+               u32 status;     /* Status of IO completion.               */
+               u32 dwArg;      /* User argument associated with pBuf.    */
+       } ;
+
+#endif                         /* CHNLDEFS_ */