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-rw-r--r--sound/oss/emu10k1/emuadxmg.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/sound/oss/emu10k1/emuadxmg.c b/sound/oss/emu10k1/emuadxmg.c
deleted file mode 100644
index d7d2d4c..0000000
--- a/sound/oss/emu10k1/emuadxmg.c
+++ /dev/null
@@ -1,104 +0,0 @@
-
-/*
- **********************************************************************
- * emuadxmg.c - Address space manager for emu10k1 driver
- * Copyright 1999, 2000 Creative Labs, Inc.
- *
- **********************************************************************
- *
- * Date Author Summary of changes
- * ---- ------ ------------------
- * October 20, 1999 Bertrand Lee base code release
- *
- **********************************************************************
- *
- * 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"
-
-/* Allocates emu address space */
-
-int emu10k1_addxmgr_alloc(u32 size, struct emu10k1_card *card)
-{
- u16 *pagetable = card->emupagetable;
- u16 index = 0;
- u16 numpages;
- unsigned long flags;
-
- /* Convert bytes to pages */
- numpages = (size / EMUPAGESIZE) + ((size % EMUPAGESIZE) ? 1 : 0);
-
- spin_lock_irqsave(&card->lock, flags);
-
- while (index < (MAXPAGES - 1)) {
- if (pagetable[index] & 0x8000) {
- /* This block of pages is in use, jump to the start of the next block. */
- index += (pagetable[index] & 0x7fff);
- } else {
- /* Found free block */
- if (pagetable[index] >= numpages) {
-
- /* Block is large enough */
-
- /* If free block is larger than the block requested
- * then adjust the size of the block remaining */
- if (pagetable[index] > numpages)
- pagetable[index + numpages] = pagetable[index] - numpages;
-
- pagetable[index] = (numpages | 0x8000); /* Mark block as used */
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- return index;
- } else {
- /* Block too small, jump to the start of the next block */
- index += pagetable[index];
- }
- }
- }
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- return -1;
-}
-
-/* Frees a previously allocated emu address space. */
-
-void emu10k1_addxmgr_free(struct emu10k1_card *card, int index)
-{
- u16 *pagetable = card->emupagetable;
- u16 origsize = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
-
- if (pagetable[index] & 0x8000) {
- /* Block is allocated - mark block as free */
- origsize = pagetable[index] & 0x7fff;
- pagetable[index] = origsize;
-
- /* If next block is free, we concat both blocks */
- if (!(pagetable[index + origsize] & 0x8000))
- pagetable[index] += pagetable[index + origsize] & 0x7fff;
- }
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- return;
-}
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