patch-2.4.0-test7 linux/drivers/sound/emu10k1/osutils.c

• Lines: 92
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test6/linux/drivers/sound/emu10k1/osutils.c
• Orig date: Wed Apr 26 16:34:08 2000

diff -u --recursive --new-file v2.4.0-test6/linux/drivers/sound/emu10k1/osutils.c linux/drivers/sound/emu10k1/osutils.c
@@ -1,91 +0,0 @@
-
-/*
- **********************************************************************
- *     osutils.c - OS Services layer for emu10k1 driver
- *     Copyright 1999, 2000 Creative Labs, Inc.
- *
- **********************************************************************
- *
- *     Date                 Author          Summary of changes
- *     ----                 ------          ------------------
- *     October 20, 1999     Bertrand Lee    base code release
- *     November 2, 1999     Alan Cox        cleaned up
- *
- **********************************************************************
- *
- *     This program is free software; you can redistribute it and/or
- *     modify it under the terms of the GNU General Public License as
- *     published by the Free Software Foundation; either version 2 of
- *     the License, or (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public
- *     License along with this program; if not, write to the Free
- *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- *     USA.
- *
- **********************************************************************
- */
-
-#include "hwaccess.h"
-
-struct memhandle *emu10k1_alloc_memphysical(u32 size)
-{
-	struct memhandle *handle;
-	u32 reqpage, order;
-
-	if ((handle = (struct memhandle *) kmalloc(sizeof(struct memhandle), GFP_KERNEL)) == NULL)
-		return handle;
-
-	DPD(3, "kmalloc: [%p]\n", handle);
-
-	order = 0;
-	reqpage = size / PAGE_SIZE;
-
-	if (size % PAGE_SIZE)
-		reqpage++;
-
-	if (reqpage != 0) {
-		reqpage--;
-		while (reqpage > 0) {
-			reqpage >>= 1;
-			order++;
-		}
-	}
-
-	if ((handle->virtaddx = (void *) __get_free_pages(GFP_KERNEL, order)) == NULL) {
-		kfree(handle);
-
-		DPD(3, "kfree: [%p]\n", handle);
-		return (void *) NULL;
-	}
-
-	/* in linux, we can directly access physical address, don't need to do
-	 * phys_to_virt.
-	 * In linux kernel 2.0.36, virt_to_bus does nothing, get_free_pages
-	 * returns physical address. But in kernel 2.2.1 upwards,
-	 * get_free_pages returns virtual address, we need to convert it
-	 * to physical address. Then this physical address can be used to
-	 * program hardware registers. */
-	handle->busaddx = virt_to_bus(handle->virtaddx);
-	handle->order = order;
-
-	DPD(3, "__get_free_pages: [%p] %lx\n", handle->virtaddx, handle->busaddx);
-
-	return handle;
-}
-
-void emu10k1_free_memphysical(struct memhandle *handle)
-{
-	free_pages((unsigned long) handle->virtaddx, handle->order);
-	kfree(handle);
-
-	DPD(3, "free_pages: [%p]\n", handle->virtaddx);
-	DPD(3, "kfree: [%p]\n", handle);
-
-	return;
-}