Maemo patchset 20101501+0m5

[h-e-n] / drivers / dsp / bridge / gen / gs.c

diff --git a/drivers/dsp/bridge/gen/gs.c b/drivers/dsp/bridge/gen/gs.c
new file mode 100644 (file)
index 0000000..71298b4
--- /dev/null
+++ b/drivers/dsp/bridge/gen/gs.c
@@ -0,0 +1,106 @@
+/*
+ * gs.c
+ *
+ * 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.
+ */
+
+
+/*
+ *  ======== gs.c ========
+ *  Description:
+ *      General storage memory allocator services.
+ *
+ *! Revision History
+ *! ================
+ *! 29-Sep-1999 ag:  Un-commented MEM_Init in GS_init().
+ *! 14-May-1997 mg:  Modified to use new GS API for GS_free() and GS_frees().
+ *! 06-Nov-1996 gp:  Re-commented MEM_Init in GS_init(). GS needs GS_Exit().
+ *! 21-Oct-1996 db:  Un-commented MEM_Init in GS_init().
+ *! 21-May-1996 mg:  Created from original stdlib implementation.
+ */
+
+/*  ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+#include <linux/types.h>
+/*  ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/mem.h>
+
+/*  ----------------------------------- This */
+#include <dspbridge/gs.h>
+
+/*  ----------------------------------- Globals */
+static u32 cumsize;
+
+/*
+ *  ======== GS_alloc ========
+ *  purpose:
+ *      Allocates memory of the specified size.
+ */
+void *GS_alloc(u32 size)
+{
+       void *p;
+
+       p = MEM_Calloc(size, MEM_PAGED);
+       if (p == NULL)
+               return NULL;
+       cumsize += size;
+       return p;
+}
+
+/*
+ *  ======== GS_exit ========
+ *  purpose:
+ *      Discontinue the usage of the GS module.
+ */
+void GS_exit(void)
+{
+       MEM_Exit();
+}
+
+/*
+ *  ======== GS_free ========
+ *  purpose:
+ *      Frees the memory.
+ */
+void GS_free(void *ptr)
+{
+       MEM_Free(ptr);
+       /* ack! no size info */
+       /* cumsize -= size; */
+}
+
+/*
+ *  ======== GS_frees ========
+ *  purpose:
+ *      Frees the memory.
+ */
+void GS_frees(void *ptr, u32 size)
+{
+       MEM_Free(ptr);
+       cumsize -= size;
+}
+
+/*
+ *  ======== GS_init ========
+ *  purpose:
+ *      Initializes the GS module.
+ */
+void GS_init(void)
+{
+       static bool curInit;
+
+       if (curInit == false) {
+               curInit = MEM_Init(); /* which can't fail currently. */
+       }
+}