1 files changed, 0 insertions, 247 deletions
diff --git a/ANDROID_3.4.5/sound/pci/ctxfi/ctvmem.c b/ANDROID_3.4.5/sound/pci/ctxfi/ctvmem.c
deleted file mode 100644
index 6109490b..00000000
--- a/ANDROID_3.4.5/sound/pci/ctxfi/ctvmem.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/**
- * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
- *
- * This source file is released under GPL v2 license (no other versions).
- * See the COPYING file included in the main directory of this source
- * distribution for the license terms and conditions.
- *
- * @File    ctvmem.c
- *
- * @Brief
- * This file contains the implementation of virtual memory management object
- * for card device.
- *
- * @Author Liu Chun
- * @Date Apr 1 2008
- */
-
-#include "ctvmem.h"
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-#include <sound/pcm.h>
-
-#define CT_PTES_PER_PAGE (CT_PAGE_SIZE / sizeof(void *))
-#define CT_ADDRS_PER_PAGE (CT_PTES_PER_PAGE * CT_PAGE_SIZE)
-
-/* *
- * Find or create vm block based on requested @size.
- * @size must be page aligned.
- * */
-static struct ct_vm_block *
-get_vm_block(struct ct_vm *vm, unsigned int size)
-{
-	struct ct_vm_block *block = NULL, *entry;
-	struct list_head *pos;
-
-	size = CT_PAGE_ALIGN(size);
-	if (size > vm->size) {
-		printk(KERN_ERR "ctxfi: Fail! No sufficient device virtual "
-				  "memory space available!\n");
-		return NULL;
-	}
-
-	mutex_lock(&vm->lock);
-	list_for_each(pos, &vm->unused) {
-		entry = list_entry(pos, struct ct_vm_block, list);
-		if (entry->size >= size)
-			break; /* found a block that is big enough */
-	}
-	if (pos == &vm->unused)
-		goto out;
-
-	if (entry->size == size) {
-		/* Move the vm node from unused list to used list directly */
-		list_move(&entry->list, &vm->used);
-		vm->size -= size;
-		block = entry;
-		goto out;
-	}
-
-	block = kzalloc(sizeof(*block), GFP_KERNEL);
-	if (!block)
-		goto out;
-
-	block->addr = entry->addr;
-	block->size = size;
-	list_add(&block->list, &vm->used);
-	entry->addr += size;
-	entry->size -= size;
-	vm->size -= size;
-
- out:
-	mutex_unlock(&vm->lock);
-	return block;
-}
-
-static void put_vm_block(struct ct_vm *vm, struct ct_vm_block *block)
-{
-	struct ct_vm_block *entry, *pre_ent;
-	struct list_head *pos, *pre;
-
-	block->size = CT_PAGE_ALIGN(block->size);
-
-	mutex_lock(&vm->lock);
-	list_del(&block->list);
-	vm->size += block->size;
-
-	list_for_each(pos, &vm->unused) {
-		entry = list_entry(pos, struct ct_vm_block, list);
-		if (entry->addr >= (block->addr + block->size))
-			break; /* found a position */
-	}
-	if (pos == &vm->unused) {
-		list_add_tail(&block->list, &vm->unused);
-		entry = block;
-	} else {
-		if ((block->addr + block->size) == entry->addr) {
-			entry->addr = block->addr;
-			entry->size += block->size;
-			kfree(block);
-		} else {
-			__list_add(&block->list, pos->prev, pos);
-			entry = block;
-		}
-	}
-
-	pos = &entry->list;
-	pre = pos->prev;
-	while (pre != &vm->unused) {
-		entry = list_entry(pos, struct ct_vm_block, list);
-		pre_ent = list_entry(pre, struct ct_vm_block, list);
-		if ((pre_ent->addr + pre_ent->size) > entry->addr)
-			break;
-
-		pre_ent->size += entry->size;
-		list_del(pos);
-		kfree(entry);
-		pos = pre;
-		pre = pos->prev;
-	}
-	mutex_unlock(&vm->lock);
-}
-
-/* Map host addr (kmalloced/vmalloced) to device logical addr. */
-static struct ct_vm_block *
-ct_vm_map(struct ct_vm *vm, struct snd_pcm_substream *substream, int size)
-{
-	struct ct_vm_block *block;
-	unsigned int pte_start;
-	unsigned i, pages;
-	unsigned long *ptp;
-
-	block = get_vm_block(vm, size);
-	if (block == NULL) {
-		printk(KERN_ERR "ctxfi: No virtual memory block that is big "
-				  "enough to allocate!\n");
-		return NULL;
-	}
-
-	ptp = (unsigned long *)vm->ptp[0].area;
-	pte_start = (block->addr >> CT_PAGE_SHIFT);
-	pages = block->size >> CT_PAGE_SHIFT;
-	for (i = 0; i < pages; i++) {
-		unsigned long addr;
-		addr = snd_pcm_sgbuf_get_addr(substream, i << CT_PAGE_SHIFT);
-		ptp[pte_start + i] = addr;
-	}
-
-	block->size = size;
-	return block;
-}
-
-static void ct_vm_unmap(struct ct_vm *vm, struct ct_vm_block *block)
-{
-	/* do unmapping */
-	put_vm_block(vm, block);
-}
-
-/* *
- * return the host physical addr of the @index-th device
- * page table page on success, or ~0UL on failure.
- * The first returned ~0UL indicates the termination.
- * */
-static dma_addr_t
-ct_get_ptp_phys(struct ct_vm *vm, int index)
-{
-	dma_addr_t addr;
-
-	addr = (index >= CT_PTP_NUM) ? ~0UL : vm->ptp[index].addr;
-
-	return addr;
-}
-
-int ct_vm_create(struct ct_vm **rvm, struct pci_dev *pci)
-{
-	struct ct_vm *vm;
-	struct ct_vm_block *block;
-	int i, err = 0;
-
-	*rvm = NULL;
-
-	vm = kzalloc(sizeof(*vm), GFP_KERNEL);
-	if (!vm)
-		return -ENOMEM;
-
-	mutex_init(&vm->lock);
-
-	/* Allocate page table pages */
-	for (i = 0; i < CT_PTP_NUM; i++) {
-		err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
-					  snd_dma_pci_data(pci),
-					  PAGE_SIZE, &vm->ptp[i]);
-		if (err < 0)
-			break;
-	}
-	if (err < 0) {
-		/* no page table pages are allocated */
-		ct_vm_destroy(vm);
-		return -ENOMEM;
-	}
-	vm->size = CT_ADDRS_PER_PAGE * i;
-	vm->map = ct_vm_map;
-	vm->unmap = ct_vm_unmap;
-	vm->get_ptp_phys = ct_get_ptp_phys;
-	INIT_LIST_HEAD(&vm->unused);
-	INIT_LIST_HEAD(&vm->used);
-	block = kzalloc(sizeof(*block), GFP_KERNEL);
-	if (NULL != block) {
-		block->addr = 0;
-		block->size = vm->size;
-		list_add(&block->list, &vm->unused);
-	}
-
-	*rvm = vm;
-	return 0;
-}
-
-/* The caller must ensure no mapping pages are being used
- * by hardware before calling this function */
-void ct_vm_destroy(struct ct_vm *vm)
-{
-	int i;
-	struct list_head *pos;
-	struct ct_vm_block *entry;
-
-	/* free used and unused list nodes */
-	while (!list_empty(&vm->used)) {
-		pos = vm->used.next;
-		list_del(pos);
-		entry = list_entry(pos, struct ct_vm_block, list);
-		kfree(entry);
-	}
-	while (!list_empty(&vm->unused)) {
-		pos = vm->unused.next;
-		list_del(pos);
-		entry = list_entry(pos, struct ct_vm_block, list);
-		kfree(entry);
-	}
-
-	/* free allocated page table pages */
-	for (i = 0; i < CT_PTP_NUM; i++)
-		snd_dma_free_pages(&vm->ptp[i]);
-
-	vm->size = 0;
-
-	kfree(vm);
-}