Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc cleanups, part 2 from Olof Johansson:
 "A shorter cleanup branch submitted separately due to dependencies with
  some of the previous topics.

  Major thing here is that the Broadcom bcmring platform is removed.
  It's an SoC that's used on some stationary VoIP platforms, and is in
  desperate need of some cleanup.  Broadcom came back and suggested that
  we just deprecate the platform for now, since they aren't going to
  spend the resources needed on cleaning it up, and there are no users
  of the platform directly from mainline."

Fix some conflicts due to BCM2835 getting added next to the removed
BCMRING, and removal of tegra files that had been converted to
devicetree.

* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses.
  ARM: ux500: use __iomem pointers for MMIO
  ARM: Remove mach-bcmring
  ARM: clps711x: Remove board support for CEIVA
  ARM: clps711x: Fix register definitions
  ARM: clps711x: Fix lowlevel debug-macro
  ARM: clps711x: Added simple clock framework
  pinctrl: tegra: move pinconf-tegra.h content into drivers/pinctrl
  ARM: tegra: delete unused headers
  ARM: tegra: remove useless includes of <mach/*.h>
  ARM: tegra: remove dead code

1 files changed, 0 insertions, 1518 deletions

diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c
deleted file mode 100644
index e5fd241fccdc..000000000000
--- a/arch/arm/mach-bcmring/dma.c
+++ /dev/null
@@ -1,1518 +0,0 @@
-/*****************************************************************************
-* Copyright 2004 - 2008 Broadcom Corporation.  All rights reserved.
-*
-* Unless you and Broadcom execute a separate written software license
-* agreement governing use of this software, this software is licensed to you
-* under the terms of the GNU General Public License version 2, available at
-* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
-*
-* Notwithstanding the above, under no circumstances may you combine this
-* software in any way with any other Broadcom software provided under a
-* license other than the GPL, without Broadcom's express prior written
-* consent.
-*****************************************************************************/
-
-/****************************************************************************/
-/**
-*   @file   dma.c
-*
-*   @brief  Implements the DMA interface.
-*/
-/****************************************************************************/
-
-/* ---- Include Files ---------------------------------------------------- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/irqreturn.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-
-#include <mach/timer.h>
-
-#include <linux/pfn.h>
-#include <linux/atomic.h>
-#include <mach/dma.h>
-
-/* ---- Public Variables ------------------------------------------------- */
-
-/* ---- Private Constants and Types -------------------------------------- */
-
-#define MAKE_HANDLE(controllerIdx, channelIdx)    (((controllerIdx) << 4) | (channelIdx))
-
-#define CONTROLLER_FROM_HANDLE(handle)    (((handle) >> 4) & 0x0f)
-#define CHANNEL_FROM_HANDLE(handle)       ((handle) & 0x0f)
-
-
-/* ---- Private Variables ------------------------------------------------ */
-
-static DMA_Global_t gDMA;
-static struct proc_dir_entry *gDmaDir;
-
-#include "dma_device.c"
-
-/* ---- Private Function Prototypes -------------------------------------- */
-
-/* ---- Functions  ------------------------------------------------------- */
-
-/****************************************************************************/
-/**
-*   Displays information for /proc/dma/channels
-*/
-/****************************************************************************/
-
-static int dma_proc_read_channels(char *buf, char **start, off_t offset,
-				  int count, int *eof, void *data)
-{
-	int controllerIdx;
-	int channelIdx;
-	int limit = count - 200;
-	int len = 0;
-	DMA_Channel_t *channel;
-
-	if (down_interruptible(&gDMA.lock) < 0) {
-		return -ERESTARTSYS;
-	}
-
-	for (controllerIdx = 0; controllerIdx < DMA_NUM_CONTROLLERS;
-	     controllerIdx++) {
-		for (channelIdx = 0; channelIdx < DMA_NUM_CHANNELS;
-		     channelIdx++) {
-			if (len >= limit) {
-				break;
-			}
-
-			channel =
-			    &gDMA.controller[controllerIdx].channel[channelIdx];
-
-			len +=
-			    sprintf(buf + len, "%d:%d ", controllerIdx,
-				    channelIdx);
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_IS_DEDICATED) !=
-			    0) {
-				len +=
-				    sprintf(buf + len, "Dedicated for %s ",
-					    DMA_gDeviceAttribute[channel->
-								 devType].name);
-			} else {
-				len += sprintf(buf + len, "Shared ");
-			}
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_NO_ISR) != 0) {
-				len += sprintf(buf + len, "No ISR ");
-			}
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_LARGE_FIFO) != 0) {
-				len += sprintf(buf + len, "Fifo: 128 ");
-			} else {
-				len += sprintf(buf + len, "Fifo: 64  ");
-			}
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_IN_USE) != 0) {
-				len +=
-				    sprintf(buf + len, "InUse by %s",
-					    DMA_gDeviceAttribute[channel->
-								 devType].name);
-#if (DMA_DEBUG_TRACK_RESERVATION)
-				len +=
-				    sprintf(buf + len, " (%s:%d)",
-					    channel->fileName,
-					    channel->lineNum);
-#endif
-			} else {
-				len += sprintf(buf + len, "Avail ");
-			}
-
-			if (channel->lastDevType != DMA_DEVICE_NONE) {
-				len +=
-				    sprintf(buf + len, "Last use: %s ",
-					    DMA_gDeviceAttribute[channel->
-								 lastDevType].
-					    name);
-			}
-
-			len += sprintf(buf + len, "\n");
-		}
-	}
-	up(&gDMA.lock);
-	*eof = 1;
-
-	return len;
-}
-
-/****************************************************************************/
-/**
-*   Displays information for /proc/dma/devices
-*/
-/****************************************************************************/
-
-static int dma_proc_read_devices(char *buf, char **start, off_t offset,
-				 int count, int *eof, void *data)
-{
-	int limit = count - 200;
-	int len = 0;
-	int devIdx;
-
-	if (down_interruptible(&gDMA.lock) < 0) {
-		return -ERESTARTSYS;
-	}
-
-	for (devIdx = 0; devIdx < DMA_NUM_DEVICE_ENTRIES; devIdx++) {
-		DMA_DeviceAttribute_t *devAttr = &DMA_gDeviceAttribute[devIdx];
-
-		if (devAttr->name == NULL) {
-			continue;
-		}
-
-		if (len >= limit) {
-			break;
-		}
-
-		len += sprintf(buf + len, "%-12s ", devAttr->name);
-
-		if ((devAttr->flags & DMA_DEVICE_FLAG_IS_DEDICATED) != 0) {
-			len +=
-			    sprintf(buf + len, "Dedicated %d:%d ",
-				    devAttr->dedicatedController,
-				    devAttr->dedicatedChannel);
-		} else {
-			len += sprintf(buf + len, "Shared DMA:");
-			if ((devAttr->flags & DMA_DEVICE_FLAG_ON_DMA0) != 0) {
-				len += sprintf(buf + len, "0");
-			}
-			if ((devAttr->flags & DMA_DEVICE_FLAG_ON_DMA1) != 0) {
-				len += sprintf(buf + len, "1");
-			}
-			len += sprintf(buf + len, " ");
-		}
-		if ((devAttr->flags & DMA_DEVICE_FLAG_NO_ISR) != 0) {
-			len += sprintf(buf + len, "NoISR ");
-		}
-		if ((devAttr->flags & DMA_DEVICE_FLAG_ALLOW_LARGE_FIFO) != 0) {
-			len += sprintf(buf + len, "Allow-128 ");
-		}
-
-		len +=
-		    sprintf(buf + len,
-			    "Xfer #: %Lu Ticks: %Lu Bytes: %Lu DescLen: %u\n",
-			    devAttr->numTransfers, devAttr->transferTicks,
-			    devAttr->transferBytes,
-			    devAttr->ring.bytesAllocated);
-
-	}
-
-	up(&gDMA.lock);
-	*eof = 1;
-
-	return len;
-}
-
-/****************************************************************************/
-/**
-*   Determines if a DMA_Device_t is "valid".
-*
-*   @return
-*       TRUE        - dma device is valid
-*       FALSE       - dma device isn't valid
-*/
-/****************************************************************************/
-
-static inline int IsDeviceValid(DMA_Device_t device)
-{
-	return (device >= 0) && (device < DMA_NUM_DEVICE_ENTRIES);
-}
-
-/****************************************************************************/
-/**
-*   Translates a DMA handle into a pointer to a channel.
-*
-*   @return
-*       non-NULL    - pointer to DMA_Channel_t
-*       NULL        - DMA Handle was invalid
-*/
-/****************************************************************************/
-
-static inline DMA_Channel_t *HandleToChannel(DMA_Handle_t handle)
-{
-	int controllerIdx;
-	int channelIdx;
-
-	controllerIdx = CONTROLLER_FROM_HANDLE(handle);
-	channelIdx = CHANNEL_FROM_HANDLE(handle);
-
-	if ((controllerIdx > DMA_NUM_CONTROLLERS)
-	    || (channelIdx > DMA_NUM_CHANNELS)) {
-		return NULL;
-	}
-	return &gDMA.controller[controllerIdx].channel[channelIdx];
-}
-
-/****************************************************************************/
-/**
-*   Interrupt handler which is called to process DMA interrupts.
-*/
-/****************************************************************************/
-
-static irqreturn_t dma_interrupt_handler(int irq, void *dev_id)
-{
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-	int irqStatus;
-
-	channel = (DMA_Channel_t *) dev_id;
-
-	/* Figure out why we were called, and knock down the interrupt */
-
-	irqStatus = dmacHw_getInterruptStatus(channel->dmacHwHandle);
-	dmacHw_clearInterrupt(channel->dmacHwHandle);
-
-	if ((channel->devType < 0)
-	    || (channel->devType > DMA_NUM_DEVICE_ENTRIES)) {
-		printk(KERN_ERR "dma_interrupt_handler: Invalid devType: %d\n",
-		       channel->devType);
-		return IRQ_NONE;
-	}
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	/* Update stats */
-
-	if ((irqStatus & dmacHw_INTERRUPT_STATUS_TRANS) != 0) {
-		devAttr->transferTicks +=
-		    (timer_get_tick_count() - devAttr->transferStartTime);
-	}
-
-	if ((irqStatus & dmacHw_INTERRUPT_STATUS_ERROR) != 0) {
-		printk(KERN_ERR
-		       "dma_interrupt_handler: devType :%d DMA error (%s)\n",
-		       channel->devType, devAttr->name);
-	} else {
-		devAttr->numTransfers++;
-		devAttr->transferBytes += devAttr->numBytes;
-	}
-
-	/* Call any installed handler */
-
-	if (devAttr->devHandler != NULL) {
-		devAttr->devHandler(channel->devType, irqStatus,
-				    devAttr->userData);
-	}
-
-	return IRQ_HANDLED;
-}
-
-/****************************************************************************/
-/**
-*   Allocates memory to hold a descriptor ring. The descriptor ring then
-*   needs to be populated by making one or more calls to
-*   dna_add_descriptors.
-*
-*   The returned descriptor ring will be automatically initialized.
-*
-*   @return
-*       0           Descriptor ring was allocated successfully
-*       -EINVAL     Invalid parameters passed in
-*       -ENOMEM     Unable to allocate memory for the desired number of descriptors.
-*/
-/****************************************************************************/
-
-int dma_alloc_descriptor_ring(DMA_DescriptorRing_t *ring,	/* Descriptor ring to populate */
-			      int numDescriptors	/* Number of descriptors that need to be allocated. */
-    ) {
-	size_t bytesToAlloc = dmacHw_descriptorLen(numDescriptors);
-
-	if ((ring == NULL) || (numDescriptors <= 0)) {
-		return -EINVAL;
-	}
-
-	ring->physAddr = 0;
-	ring->descriptorsAllocated = 0;
-	ring->bytesAllocated = 0;
-
-	ring->virtAddr = dma_alloc_writecombine(NULL,
-						     bytesToAlloc,
-						     &ring->physAddr,
-						     GFP_KERNEL);
-	if (ring->virtAddr == NULL) {
-		return -ENOMEM;
-	}
-
-	ring->bytesAllocated = bytesToAlloc;
-	ring->descriptorsAllocated = numDescriptors;
-
-	return dma_init_descriptor_ring(ring, numDescriptors);
-}
-
-EXPORT_SYMBOL(dma_alloc_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Releases the memory which was previously allocated for a descriptor ring.
-*/
-/****************************************************************************/
-
-void dma_free_descriptor_ring(DMA_DescriptorRing_t *ring	/* Descriptor to release */
-    ) {
-	if (ring->virtAddr != NULL) {
-		dma_free_writecombine(NULL,
-				      ring->bytesAllocated,
-				      ring->virtAddr, ring->physAddr);
-	}
-
-	ring->bytesAllocated = 0;
-	ring->descriptorsAllocated = 0;
-	ring->virtAddr = NULL;
-	ring->physAddr = 0;
-}
-
-EXPORT_SYMBOL(dma_free_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Initializes a descriptor ring, so that descriptors can be added to it.
-*   Once a descriptor ring has been allocated, it may be reinitialized for
-*   use with additional/different regions of memory.
-*
-*   Note that if 7 descriptors are allocated, it's perfectly acceptable to
-*   initialize the ring with a smaller number of descriptors. The amount
-*   of memory allocated for the descriptor ring will not be reduced, and
-*   the descriptor ring may be reinitialized later
-*
-*   @return
-*       0           Descriptor ring was initialized successfully
-*       -ENOMEM     The descriptor which was passed in has insufficient space
-*                   to hold the desired number of descriptors.
-*/
-/****************************************************************************/
-
-int dma_init_descriptor_ring(DMA_DescriptorRing_t *ring,	/* Descriptor ring to initialize */
-			     int numDescriptors	/* Number of descriptors to initialize. */
-    ) {
-	if (ring->virtAddr == NULL) {
-		return -EINVAL;
-	}
-	if (dmacHw_initDescriptor(ring->virtAddr,
-				  ring->physAddr,
-				  ring->bytesAllocated, numDescriptors) < 0) {
-		printk(KERN_ERR
-		       "dma_init_descriptor_ring: dmacHw_initDescriptor failed\n");
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_init_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Determines the number of descriptors which would be required for a
-*   transfer of the indicated memory region.
-*
-*   This function also needs to know which DMA device this transfer will
-*   be destined for, so that the appropriate DMA configuration can be retrieved.
-*   DMA parameters such as transfer width, and whether this is a memory-to-memory
-*   or memory-to-peripheral, etc can all affect the actual number of descriptors
-*   required.
-*
-*   @return
-*       > 0     Returns the number of descriptors required for the indicated transfer
-*       -ENODEV - Device handed in is invalid.
-*       -EINVAL Invalid parameters
-*       -ENOMEM Memory exhausted
-*/
-/****************************************************************************/
-
-int dma_calculate_descriptor_count(DMA_Device_t device,	/* DMA Device that this will be associated with */
-				   dma_addr_t srcData,	/* Place to get data to write to device */
-				   dma_addr_t dstData,	/* Pointer to device data address */
-				   size_t numBytes	/* Number of bytes to transfer to the device */
-    ) {
-	int numDescriptors;
-	DMA_DeviceAttribute_t *devAttr;
-
-	if (!IsDeviceValid(device)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[device];
-
-	numDescriptors = dmacHw_calculateDescriptorCount(&devAttr->config,
-							      (void *)srcData,
-							      (void *)dstData,
-							      numBytes);
-	if (numDescriptors < 0) {
-		printk(KERN_ERR
-		       "dma_calculate_descriptor_count: dmacHw_calculateDescriptorCount failed\n");
-		return -EINVAL;
-	}
-
-	return numDescriptors;
-}
-
-EXPORT_SYMBOL(dma_calculate_descriptor_count);
-
-/****************************************************************************/
-/**
-*   Adds a region of memory to the descriptor ring. Note that it may take
-*   multiple descriptors for each region of memory. It is the callers
-*   responsibility to allocate a sufficiently large descriptor ring.
-*
-*   @return
-*       0       Descriptors were added successfully
-*       -ENODEV Device handed in is invalid.
-*       -EINVAL Invalid parameters
-*       -ENOMEM Memory exhausted
-*/
-/****************************************************************************/
-
-int dma_add_descriptors(DMA_DescriptorRing_t *ring,	/* Descriptor ring to add descriptors to */
-			DMA_Device_t device,	/* DMA Device that descriptors are for */
-			dma_addr_t srcData,	/* Place to get data (memory or device) */
-			dma_addr_t dstData,	/* Place to put data (memory or device) */
-			size_t numBytes	/* Number of bytes to transfer to the device */
-    ) {
-	int rc;
-	DMA_DeviceAttribute_t *devAttr;
-
-	if (!IsDeviceValid(device)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[device];
-
-	rc = dmacHw_setDataDescriptor(&devAttr->config,
-				      ring->virtAddr,
-				      (void *)srcData,
-				      (void *)dstData, numBytes);
-	if (rc < 0) {
-		printk(KERN_ERR
-		       "dma_add_descriptors: dmacHw_setDataDescriptor failed with code: %d\n",
-		       rc);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_add_descriptors);
-
-/****************************************************************************/
-/**
-*   Sets the descriptor ring associated with a device.
-*
-*   Once set, the descriptor ring will be associated with the device, even
-*   across channel request/free calls. Passing in a NULL descriptor ring
-*   will release any descriptor ring currently associated with the device.
-*
-*   Note: If you call dma_transfer, or one of the other dma_alloc_ functions
-*         the descriptor ring may be released and reallocated.
-*
-*   Note: This function will release the descriptor memory for any current
-*         descriptor ring associated with this device.
-*
-*   @return
-*       0       Descriptors were added successfully
-*       -ENODEV Device handed in is invalid.
-*/
-/****************************************************************************/
-
-int dma_set_device_descriptor_ring(DMA_Device_t device,	/* Device to update the descriptor ring for. */
-				   DMA_DescriptorRing_t *ring	/* Descriptor ring to add descriptors to */
-    ) {
-	DMA_DeviceAttribute_t *devAttr;
-
-	if (!IsDeviceValid(device)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[device];
-
-	/* Free the previously allocated descriptor ring */
-
-	dma_free_descriptor_ring(&devAttr->ring);
-
-	if (ring != NULL) {
-		/* Copy in the new one */
-
-		devAttr->ring = *ring;
-	}
-
-	/* Set things up so that if dma_transfer is called then this descriptor */
-	/* ring will get freed. */
-
-	devAttr->prevSrcData = 0;
-	devAttr->prevDstData = 0;
-	devAttr->prevNumBytes = 0;
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_set_device_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Retrieves the descriptor ring associated with a device.
-*
-*   @return
-*       0       Descriptors were added successfully
-*       -ENODEV Device handed in is invalid.
-*/
-/****************************************************************************/
-
-int dma_get_device_descriptor_ring(DMA_Device_t device,	/* Device to retrieve the descriptor ring for. */
-				   DMA_DescriptorRing_t *ring	/* Place to store retrieved ring */
-    ) {
-	DMA_DeviceAttribute_t *devAttr;
-
-	memset(ring, 0, sizeof(*ring));
-
-	if (!IsDeviceValid(device)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[device];
-
-	*ring = devAttr->ring;
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_get_device_descriptor_ring);
-
-/****************************************************************************/
-/**
-*   Configures a DMA channel.
-*
-*   @return
-*       >= 0    - Initialization was successful.
-*
-*       -EBUSY  - Device is currently being used.
-*       -ENODEV - Device handed in is invalid.
-*/
-/****************************************************************************/
-
-static int ConfigChannel(DMA_Handle_t handle)
-{
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-	int controllerIdx;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-	controllerIdx = CONTROLLER_FROM_HANDLE(handle);
-
-	if ((devAttr->flags & DMA_DEVICE_FLAG_PORT_PER_DMAC) != 0) {
-		if (devAttr->config.transferType ==
-		    dmacHw_TRANSFER_TYPE_MEM_TO_PERIPHERAL) {
-			devAttr->config.dstPeripheralPort =
-			    devAttr->dmacPort[controllerIdx];
-		} else if (devAttr->config.transferType ==
-			   dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_MEM) {
-			devAttr->config.srcPeripheralPort =
-			    devAttr->dmacPort[controllerIdx];
-		}
-	}
-
-	if (dmacHw_configChannel(channel->dmacHwHandle, &devAttr->config) != 0) {
-		printk(KERN_ERR "ConfigChannel: dmacHw_configChannel failed\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-/****************************************************************************/
-/**
-*   Initializes all of the data structures associated with the DMA.
-*   @return
-*       >= 0    - Initialization was successful.
-*
-*       -EBUSY  - Device is currently being used.
-*       -ENODEV - Device handed in is invalid.
-*/
-/****************************************************************************/
-
-int dma_init(void)
-{
-	int rc = 0;
-	int controllerIdx;
-	int channelIdx;
-	DMA_Device_t devIdx;
-	DMA_Channel_t *channel;
-	DMA_Handle_t dedicatedHandle;
-
-	memset(&gDMA, 0, sizeof(gDMA));
-
-	sema_init(&gDMA.lock, 0);
-	init_waitqueue_head(&gDMA.freeChannelQ);
-
-	/* Initialize the Hardware */
-
-	dmacHw_initDma();
-
-	/* Start off by marking all of the DMA channels as shared. */
-
-	for (controllerIdx = 0; controllerIdx < DMA_NUM_CONTROLLERS;
-	     controllerIdx++) {
-		for (channelIdx = 0; channelIdx < DMA_NUM_CHANNELS;
-		     channelIdx++) {
-			channel =
-			    &gDMA.controller[controllerIdx].channel[channelIdx];
-
-			channel->flags = 0;
-			channel->devType = DMA_DEVICE_NONE;
-			channel->lastDevType = DMA_DEVICE_NONE;
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-			channel->fileName = "";
-			channel->lineNum = 0;
-#endif
-
-			channel->dmacHwHandle =
-			    dmacHw_getChannelHandle(dmacHw_MAKE_CHANNEL_ID
-						    (controllerIdx,
-						     channelIdx));
-			dmacHw_initChannel(channel->dmacHwHandle);
-		}
-	}
-
-	/* Record any special attributes that channels may have */
-
-	gDMA.controller[0].channel[0].flags |= DMA_CHANNEL_FLAG_LARGE_FIFO;
-	gDMA.controller[0].channel[1].flags |= DMA_CHANNEL_FLAG_LARGE_FIFO;
-	gDMA.controller[1].channel[0].flags |= DMA_CHANNEL_FLAG_LARGE_FIFO;
-	gDMA.controller[1].channel[1].flags |= DMA_CHANNEL_FLAG_LARGE_FIFO;
-
-	/* Now walk through and record the dedicated channels. */
-
-	for (devIdx = 0; devIdx < DMA_NUM_DEVICE_ENTRIES; devIdx++) {
-		DMA_DeviceAttribute_t *devAttr = &DMA_gDeviceAttribute[devIdx];
-
-		if (((devAttr->flags & DMA_DEVICE_FLAG_NO_ISR) != 0)
-		    && ((devAttr->flags & DMA_DEVICE_FLAG_IS_DEDICATED) == 0)) {
-			printk(KERN_ERR
-			       "DMA Device: %s Can only request NO_ISR for dedicated devices\n",
-			       devAttr->name);
-			rc = -EINVAL;
-			goto out;
-		}
-
-		if ((devAttr->flags & DMA_DEVICE_FLAG_IS_DEDICATED) != 0) {
-			/* This is a dedicated device. Mark the channel as being reserved. */
-
-			if (devAttr->dedicatedController >= DMA_NUM_CONTROLLERS) {
-				printk(KERN_ERR
-				       "DMA Device: %s DMA Controller %d is out of range\n",
-				       devAttr->name,
-				       devAttr->dedicatedController);
-				rc = -EINVAL;
-				goto out;
-			}
-
-			if (devAttr->dedicatedChannel >= DMA_NUM_CHANNELS) {
-				printk(KERN_ERR
-				       "DMA Device: %s DMA Channel %d is out of range\n",
-				       devAttr->name,
-				       devAttr->dedicatedChannel);
-				rc = -EINVAL;
-				goto out;
-			}
-
-			dedicatedHandle =
-			    MAKE_HANDLE(devAttr->dedicatedController,
-					devAttr->dedicatedChannel);
-			channel = HandleToChannel(dedicatedHandle);
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_IS_DEDICATED) !=
-			    0) {
-				printk
-				    ("DMA Device: %s attempting to use same DMA Controller:Channel (%d:%d) as %s\n",
-				     devAttr->name,
-				     devAttr->dedicatedController,
-				     devAttr->dedicatedChannel,
-				     DMA_gDeviceAttribute[channel->devType].
-				     name);
-				rc = -EBUSY;
-				goto out;
-			}
-
-			channel->flags |= DMA_CHANNEL_FLAG_IS_DEDICATED;
-			channel->devType = devIdx;
-
-			if (devAttr->flags & DMA_DEVICE_FLAG_NO_ISR) {
-				channel->flags |= DMA_CHANNEL_FLAG_NO_ISR;
-			}
-
-			/* For dedicated channels, we can go ahead and configure the DMA channel now */
-			/* as well. */
-
-			ConfigChannel(dedicatedHandle);
-		}
-	}
-
-	/* Go through and register the interrupt handlers */
-
-	for (controllerIdx = 0; controllerIdx < DMA_NUM_CONTROLLERS;
-	     controllerIdx++) {
-		for (channelIdx = 0; channelIdx < DMA_NUM_CHANNELS;
-		     channelIdx++) {
-			channel =
-			    &gDMA.controller[controllerIdx].channel[channelIdx];
-
-			if ((channel->flags & DMA_CHANNEL_FLAG_NO_ISR) == 0) {
-				snprintf(channel->name, sizeof(channel->name),
-					 "dma %d:%d %s", controllerIdx,
-					 channelIdx,
-					 channel->devType ==
-					 DMA_DEVICE_NONE ? "" :
-					 DMA_gDeviceAttribute[channel->devType].
-					 name);
-
-				rc =
-				     request_irq(IRQ_DMA0C0 +
-						 (controllerIdx *
-						  DMA_NUM_CHANNELS) +
-						 channelIdx,
-						 dma_interrupt_handler,
-						 IRQF_DISABLED, channel->name,
-						 channel);
-				if (rc != 0) {
-					printk(KERN_ERR
-					       "request_irq for IRQ_DMA%dC%d failed\n",
-					       controllerIdx, channelIdx);
-				}
-			}
-		}
-	}
-
-	/* Create /proc/dma/channels and /proc/dma/devices */
-
-	gDmaDir = proc_mkdir("dma", NULL);
-
-	if (gDmaDir == NULL) {
-		printk(KERN_ERR "Unable to create /proc/dma\n");
-	} else {
-		create_proc_read_entry("channels", 0, gDmaDir,
-				       dma_proc_read_channels, NULL);
-		create_proc_read_entry("devices", 0, gDmaDir,
-				       dma_proc_read_devices, NULL);
-	}
-
-out:
-
-	up(&gDMA.lock);
-
-	return rc;
-}
-
-/****************************************************************************/
-/**
-*   Reserves a channel for use with @a dev. If the device is setup to use
-*   a shared channel, then this function will block until a free channel
-*   becomes available.
-*
-*   @return
-*       >= 0    - A valid DMA Handle.
-*       -EBUSY  - Device is currently being used.
-*       -ENODEV - Device handed in is invalid.
-*/
-/****************************************************************************/
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-DMA_Handle_t dma_request_channel_dbg
-    (DMA_Device_t dev, const char *fileName, int lineNum)
-#else
-DMA_Handle_t dma_request_channel(DMA_Device_t dev)
-#endif
-{
-	DMA_Handle_t handle;
-	DMA_DeviceAttribute_t *devAttr;
-	DMA_Channel_t *channel;
-	int controllerIdx;
-	int controllerIdx2;
-	int channelIdx;
-
-	if (down_interruptible(&gDMA.lock) < 0) {
-		return -ERESTARTSYS;
-	}
-
-	if ((dev < 0) || (dev >= DMA_NUM_DEVICE_ENTRIES)) {
-		handle = -ENODEV;
-		goto out;
-	}
-	devAttr = &DMA_gDeviceAttribute[dev];
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-	{
-		char *s;
-
-		s = strrchr(fileName, '/');
-		if (s != NULL) {
-			fileName = s + 1;
-		}
-	}
-#endif
-	if ((devAttr->flags & DMA_DEVICE_FLAG_IN_USE) != 0) {
-		/* This device has already been requested and not been freed */
-
-		printk(KERN_ERR "%s: device %s is already requested\n",
-		       __func__, devAttr->name);
-		handle = -EBUSY;
-		goto out;
-	}
-
-	if ((devAttr->flags & DMA_DEVICE_FLAG_IS_DEDICATED) != 0) {
-		/* This device has a dedicated channel. */
-
-		channel =
-		    &gDMA.controller[devAttr->dedicatedController].
-		    channel[devAttr->dedicatedChannel];
-		if ((channel->flags & DMA_CHANNEL_FLAG_IN_USE) != 0) {
-			handle = -EBUSY;
-			goto out;
-		}
-
-		channel->flags |= DMA_CHANNEL_FLAG_IN_USE;
-		devAttr->flags |= DMA_DEVICE_FLAG_IN_USE;
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-		channel->fileName = fileName;
-		channel->lineNum = lineNum;
-#endif
-		handle =
-		    MAKE_HANDLE(devAttr->dedicatedController,
-				devAttr->dedicatedChannel);
-		goto out;
-	}
-
-	/* This device needs to use one of the shared channels. */
-
-	handle = DMA_INVALID_HANDLE;
-	while (handle == DMA_INVALID_HANDLE) {
-		/* Scan through the shared channels and see if one is available */
-
-		for (controllerIdx2 = 0; controllerIdx2 < DMA_NUM_CONTROLLERS;
-		     controllerIdx2++) {
-			/* Check to see if we should try on controller 1 first. */
-
-			controllerIdx = controllerIdx2;
-			if ((devAttr->
-			     flags & DMA_DEVICE_FLAG_ALLOC_DMA1_FIRST) != 0) {
-				controllerIdx = 1 - controllerIdx;
-			}
-
-			/* See if the device is available on the controller being tested */
-
-			if ((devAttr->
-			     flags & (DMA_DEVICE_FLAG_ON_DMA0 << controllerIdx))
-			    != 0) {
-				for (channelIdx = 0;
-				     channelIdx < DMA_NUM_CHANNELS;
-				     channelIdx++) {
-					channel =
-					    &gDMA.controller[controllerIdx].
-					    channel[channelIdx];
-
-					if (((channel->
-					      flags &
-					      DMA_CHANNEL_FLAG_IS_DEDICATED) ==
-					     0)
-					    &&
-					    ((channel->
-					      flags & DMA_CHANNEL_FLAG_IN_USE)
-					     == 0)) {
-						if (((channel->
-						      flags &
-						      DMA_CHANNEL_FLAG_LARGE_FIFO)
-						     != 0)
-						    &&
-						    ((devAttr->
-						      flags &
-						      DMA_DEVICE_FLAG_ALLOW_LARGE_FIFO)
-						     == 0)) {
-							/* This channel is a large fifo - don't tie it up */
-							/* with devices that we don't want using it. */
-
-							continue;
-						}
-
-						channel->flags |=
-						    DMA_CHANNEL_FLAG_IN_USE;
-						channel->devType = dev;
-						devAttr->flags |=
-						    DMA_DEVICE_FLAG_IN_USE;
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-						channel->fileName = fileName;
-						channel->lineNum = lineNum;
-#endif
-						handle =
-						    MAKE_HANDLE(controllerIdx,
-								channelIdx);
-
-						/* Now that we've reserved the channel - we can go ahead and configure it */
-
-						if (ConfigChannel(handle) != 0) {
-							handle = -EIO;
-							printk(KERN_ERR
-							       "dma_request_channel: ConfigChannel failed\n");
-						}
-						goto out;
-					}
-				}
-			}
-		}
-
-		/* No channels are currently available. Let's wait for one to free up. */
-
-		{
-			DEFINE_WAIT(wait);
-
-			prepare_to_wait(&gDMA.freeChannelQ, &wait,
-					TASK_INTERRUPTIBLE);
-			up(&gDMA.lock);
-			schedule();
-			finish_wait(&gDMA.freeChannelQ, &wait);
-
-			if (signal_pending(current)) {
-				/* We don't currently hold gDMA.lock, so we return directly */
-
-				return -ERESTARTSYS;
-			}
-		}
-
-		if (down_interruptible(&gDMA.lock)) {
-			return -ERESTARTSYS;
-		}
-	}
-
-out:
-	up(&gDMA.lock);
-
-	return handle;
-}
-
-/* Create both _dbg and non _dbg functions for modules. */
-
-#if (DMA_DEBUG_TRACK_RESERVATION)
-#undef dma_request_channel
-DMA_Handle_t dma_request_channel(DMA_Device_t dev)
-{
-	return dma_request_channel_dbg(dev, __FILE__, __LINE__);
-}
-
-EXPORT_SYMBOL(dma_request_channel_dbg);
-#endif
-EXPORT_SYMBOL(dma_request_channel);
-
-/****************************************************************************/
-/**
-*   Frees a previously allocated DMA Handle.
-*/
-/****************************************************************************/
-
-int dma_free_channel(DMA_Handle_t handle	/* DMA handle. */
-    ) {
-	int rc = 0;
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-
-	if (down_interruptible(&gDMA.lock) < 0) {
-		return -ERESTARTSYS;
-	}
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	if ((channel->flags & DMA_CHANNEL_FLAG_IS_DEDICATED) == 0) {
-		channel->lastDevType = channel->devType;
-		channel->devType = DMA_DEVICE_NONE;
-	}
-	channel->flags &= ~DMA_CHANNEL_FLAG_IN_USE;
-	devAttr->flags &= ~DMA_DEVICE_FLAG_IN_USE;
-
-out:
-	up(&gDMA.lock);
-
-	wake_up_interruptible(&gDMA.freeChannelQ);
-
-	return rc;
-}
-
-EXPORT_SYMBOL(dma_free_channel);
-
-/****************************************************************************/
-/**
-*   Determines if a given device has been configured as using a shared
-*   channel.
-*
-*   @return
-*       0           Device uses a dedicated channel
-*       > zero      Device uses a shared channel
-*       < zero      Error code
-*/
-/****************************************************************************/
-
-int dma_device_is_channel_shared(DMA_Device_t device	/* Device to check. */
-    ) {
-	DMA_DeviceAttribute_t *devAttr;
-
-	if (!IsDeviceValid(device)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[device];
-
-	return ((devAttr->flags & DMA_DEVICE_FLAG_IS_DEDICATED) == 0);
-}
-
-EXPORT_SYMBOL(dma_device_is_channel_shared);
-
-/****************************************************************************/
-/**
-*   Allocates buffers for the descriptors. This is normally done automatically
-*   but needs to be done explicitly when initiating a dma from interrupt
-*   context.
-*
-*   @return
-*       0       Descriptors were allocated successfully
-*       -EINVAL Invalid device type for this kind of transfer
-*               (i.e. the device is _MEM_TO_DEV and not _DEV_TO_MEM)
-*       -ENOMEM Memory exhausted
-*/
-/****************************************************************************/
-
-int dma_alloc_descriptors(DMA_Handle_t handle,	/* DMA Handle */
-			  dmacHw_TRANSFER_TYPE_e transferType,	/* Type of transfer being performed */
-			  dma_addr_t srcData,	/* Place to get data to write to device */
-			  dma_addr_t dstData,	/* Pointer to device data address */
-			  size_t numBytes	/* Number of bytes to transfer to the device */
-    ) {
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-	int numDescriptors;
-	size_t ringBytesRequired;
-	int rc = 0;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	if (devAttr->config.transferType != transferType) {
-		return -EINVAL;
-	}
-
-	/* Figure out how many descriptors we need. */
-
-	/* printk("srcData: 0x%08x dstData: 0x%08x, numBytes: %d\n", */
-	/*        srcData, dstData, numBytes); */
-
-	numDescriptors = dmacHw_calculateDescriptorCount(&devAttr->config,
-							      (void *)srcData,
-							      (void *)dstData,
-							      numBytes);
-	if (numDescriptors < 0) {
-		printk(KERN_ERR "%s: dmacHw_calculateDescriptorCount failed\n",
-		       __func__);
-		return -EINVAL;
-	}
-
-	/* Check to see if we can reuse the existing descriptor ring, or if we need to allocate */
-	/* a new one. */
-
-	ringBytesRequired = dmacHw_descriptorLen(numDescriptors);
-
-	/* printk("ringBytesRequired: %d\n", ringBytesRequired); */
-
-	if (ringBytesRequired > devAttr->ring.bytesAllocated) {
-		/* Make sure that this code path is never taken from interrupt context. */
-		/* It's OK for an interrupt to initiate a DMA transfer, but the descriptor */
-		/* allocation needs to have already been done. */
-
-		might_sleep();
-
-		/* Free the old descriptor ring and allocate a new one. */
-
-		dma_free_descriptor_ring(&devAttr->ring);
-
-		/* And allocate a new one. */
-
-		rc =
-		     dma_alloc_descriptor_ring(&devAttr->ring,
-					       numDescriptors);
-		if (rc < 0) {
-			printk(KERN_ERR
-			       "%s: dma_alloc_descriptor_ring(%d) failed\n",
-			       __func__, numDescriptors);
-			return rc;
-		}
-		/* Setup the descriptor for this transfer */
-
-		if (dmacHw_initDescriptor(devAttr->ring.virtAddr,
-					  devAttr->ring.physAddr,
-					  devAttr->ring.bytesAllocated,
-					  numDescriptors) < 0) {
-			printk(KERN_ERR "%s: dmacHw_initDescriptor failed\n",
-			       __func__);
-			return -EINVAL;
-		}
-	} else {
-		/* We've already got enough ring buffer allocated. All we need to do is reset */
-		/* any control information, just in case the previous DMA was stopped. */
-
-		dmacHw_resetDescriptorControl(devAttr->ring.virtAddr);
-	}
-
-	/* dma_alloc/free both set the prevSrc/DstData to 0. If they happen to be the same */
-	/* as last time, then we don't need to call setDataDescriptor again. */
-
-	if (dmacHw_setDataDescriptor(&devAttr->config,
-				     devAttr->ring.virtAddr,
-				     (void *)srcData,
-				     (void *)dstData, numBytes) < 0) {
-		printk(KERN_ERR "%s: dmacHw_setDataDescriptor failed\n",
-		       __func__);
-		return -EINVAL;
-	}
-
-	/* Remember the critical information for this transfer so that we can eliminate */
-	/* another call to dma_alloc_descriptors if the caller reuses the same buffers */
-
-	devAttr->prevSrcData = srcData;
-	devAttr->prevDstData = dstData;
-	devAttr->prevNumBytes = numBytes;
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_alloc_descriptors);
-
-/****************************************************************************/
-/**
-*   Allocates and sets up descriptors for a double buffered circular buffer.
-*
-*   This is primarily intended to be used for things like the ingress samples
-*   from a microphone.
-*
-*   @return
-*       > 0     Number of descriptors actually allocated.
-*       -EINVAL Invalid device type for this kind of transfer
-*               (i.e. the device is _MEM_TO_DEV and not _DEV_TO_MEM)
-*       -ENOMEM Memory exhausted
-*/
-/****************************************************************************/
-
-int dma_alloc_double_dst_descriptors(DMA_Handle_t handle,	/* DMA Handle */
-				     dma_addr_t srcData,	/* Physical address of source data */
-				     dma_addr_t dstData1,	/* Physical address of first destination buffer */
-				     dma_addr_t dstData2,	/* Physical address of second destination buffer */
-				     size_t numBytes	/* Number of bytes in each destination buffer */
-    ) {
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-	int numDst1Descriptors;
-	int numDst2Descriptors;
-	int numDescriptors;
-	size_t ringBytesRequired;
-	int rc = 0;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	/* Figure out how many descriptors we need. */
-
-	/* printk("srcData: 0x%08x dstData: 0x%08x, numBytes: %d\n", */
-	/*        srcData, dstData, numBytes); */
-
-	numDst1Descriptors =
-	     dmacHw_calculateDescriptorCount(&devAttr->config, (void *)srcData,
-					     (void *)dstData1, numBytes);
-	if (numDst1Descriptors < 0) {
-		return -EINVAL;
-	}
-	numDst2Descriptors =
-	     dmacHw_calculateDescriptorCount(&devAttr->config, (void *)srcData,
-					     (void *)dstData2, numBytes);
-	if (numDst2Descriptors < 0) {
-		return -EINVAL;
-	}
-	numDescriptors = numDst1Descriptors + numDst2Descriptors;
-	/* printk("numDescriptors: %d\n", numDescriptors); */
-
-	/* Check to see if we can reuse the existing descriptor ring, or if we need to allocate */
-	/* a new one. */
-
-	ringBytesRequired = dmacHw_descriptorLen(numDescriptors);
-
-	/* printk("ringBytesRequired: %d\n", ringBytesRequired); */
-
-	if (ringBytesRequired > devAttr->ring.bytesAllocated) {
-		/* Make sure that this code path is never taken from interrupt context. */
-		/* It's OK for an interrupt to initiate a DMA transfer, but the descriptor */
-		/* allocation needs to have already been done. */
-
-		might_sleep();
-
-		/* Free the old descriptor ring and allocate a new one. */
-
-		dma_free_descriptor_ring(&devAttr->ring);
-
-		/* And allocate a new one. */
-
-		rc =
-		     dma_alloc_descriptor_ring(&devAttr->ring,
-					       numDescriptors);
-		if (rc < 0) {
-			printk(KERN_ERR
-			       "%s: dma_alloc_descriptor_ring(%d) failed\n",
-			       __func__, ringBytesRequired);
-			return rc;
-		}
-	}
-
-	/* Setup the descriptor for this transfer. Since this function is used with */
-	/* CONTINUOUS DMA operations, we need to reinitialize every time, otherwise */
-	/* setDataDescriptor will keep trying to append onto the end. */
-
-	if (dmacHw_initDescriptor(devAttr->ring.virtAddr,
-				  devAttr->ring.physAddr,
-				  devAttr->ring.bytesAllocated,
-				  numDescriptors) < 0) {
-		printk(KERN_ERR "%s: dmacHw_initDescriptor failed\n", __func__);
-		return -EINVAL;
-	}
-
-	/* dma_alloc/free both set the prevSrc/DstData to 0. If they happen to be the same */
-	/* as last time, then we don't need to call setDataDescriptor again. */
-
-	if (dmacHw_setDataDescriptor(&devAttr->config,
-				     devAttr->ring.virtAddr,
-				     (void *)srcData,
-				     (void *)dstData1, numBytes) < 0) {
-		printk(KERN_ERR "%s: dmacHw_setDataDescriptor 1 failed\n",
-		       __func__);
-		return -EINVAL;
-	}
-	if (dmacHw_setDataDescriptor(&devAttr->config,
-				     devAttr->ring.virtAddr,
-				     (void *)srcData,
-				     (void *)dstData2, numBytes) < 0) {
-		printk(KERN_ERR "%s: dmacHw_setDataDescriptor 2 failed\n",
-		       __func__);
-		return -EINVAL;
-	}
-
-	/* You should use dma_start_transfer rather than dma_transfer_xxx so we don't */
-	/* try to make the 'prev' variables right. */
-
-	devAttr->prevSrcData = 0;
-	devAttr->prevDstData = 0;
-	devAttr->prevNumBytes = 0;
-
-	return numDescriptors;
-}
-
-EXPORT_SYMBOL(dma_alloc_double_dst_descriptors);
-
-/****************************************************************************/
-/**
-*   Initiates a transfer when the descriptors have already been setup.
-*
-*   This is a special case, and normally, the dma_transfer_xxx functions should
-*   be used.
-*
-*   @return
-*       0       Transfer was started successfully
-*       -ENODEV Invalid handle
-*/
-/****************************************************************************/
-
-int dma_start_transfer(DMA_Handle_t handle)
-{
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	dmacHw_initiateTransfer(channel->dmacHwHandle, &devAttr->config,
-				devAttr->ring.virtAddr);
-
-	/* Since we got this far, everything went successfully */
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_start_transfer);
-
-/****************************************************************************/
-/**
-*   Stops a previously started DMA transfer.
-*
-*   @return
-*       0       Transfer was stopped successfully
-*       -ENODEV Invalid handle
-*/
-/****************************************************************************/
-
-int dma_stop_transfer(DMA_Handle_t handle)
-{
-	DMA_Channel_t *channel;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-
-	dmacHw_stopTransfer(channel->dmacHwHandle);
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_stop_transfer);
-
-/****************************************************************************/
-/**
-*   Waits for a DMA to complete by polling. This function is only intended
-*   to be used for testing. Interrupts should be used for most DMA operations.
-*/
-/****************************************************************************/
-
-int dma_wait_transfer_done(DMA_Handle_t handle)
-{
-	DMA_Channel_t *channel;
-	dmacHw_TRANSFER_STATUS_e status;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-
-	while ((status =
-		dmacHw_transferCompleted(channel->dmacHwHandle)) ==
-	       dmacHw_TRANSFER_STATUS_BUSY) {
-		;
-	}
-
-	if (status == dmacHw_TRANSFER_STATUS_ERROR) {
-		printk(KERN_ERR "%s: DMA transfer failed\n", __func__);
-		return -EIO;
-	}
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_wait_transfer_done);
-
-/****************************************************************************/
-/**
-*   Initiates a DMA, allocating the descriptors as required.
-*
-*   @return
-*       0       Transfer was started successfully
-*       -EINVAL Invalid device type for this kind of transfer
-*               (i.e. the device is _DEV_TO_MEM and not _MEM_TO_DEV)
-*/
-/****************************************************************************/
-
-int dma_transfer(DMA_Handle_t handle,	/* DMA Handle */
-		 dmacHw_TRANSFER_TYPE_e transferType,	/* Type of transfer being performed */
-		 dma_addr_t srcData,	/* Place to get data to write to device */
-		 dma_addr_t dstData,	/* Pointer to device data address */
-		 size_t numBytes	/* Number of bytes to transfer to the device */
-    ) {
-	DMA_Channel_t *channel;
-	DMA_DeviceAttribute_t *devAttr;
-	int rc = 0;
-
-	channel = HandleToChannel(handle);
-	if (channel == NULL) {
-		return -ENODEV;
-	}
-
-	devAttr = &DMA_gDeviceAttribute[channel->devType];
-
-	if (devAttr->config.transferType != transferType) {
-		return -EINVAL;
-	}
-
-	/* We keep track of the information about the previous request for this */
-	/* device, and if the attributes match, then we can use the descriptors we setup */
-	/* the last time, and not have to reinitialize everything. */
-
-	{
-		rc =
-		     dma_alloc_descriptors(handle, transferType, srcData,
-					   dstData, numBytes);
-		if (rc != 0) {
-			return rc;
-		}
-	}
-
-	/* And kick off the transfer */
-
-	devAttr->numBytes = numBytes;
-	devAttr->transferStartTime = timer_get_tick_count();
-
-	dmacHw_initiateTransfer(channel->dmacHwHandle, &devAttr->config,
-				devAttr->ring.virtAddr);
-
-	/* Since we got this far, everything went successfully */
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_transfer);
-
-/****************************************************************************/
-/**
-*   Set the callback function which will be called when a transfer completes.
-*   If a NULL callback function is set, then no callback will occur.
-*
-*   @note   @a devHandler will be called from IRQ context.
-*
-*   @return
-*       0       - Success
-*       -ENODEV - Device handed in is invalid.
-*/
-/****************************************************************************/
-
-int dma_set_device_handler(DMA_Device_t dev,	/* Device to set the callback for. */
-			   DMA_DeviceHandler_t devHandler,	/* Function to call when the DMA completes */
-			   void *userData	/* Pointer which will be passed to devHandler. */
-    ) {
-	DMA_DeviceAttribute_t *devAttr;
-	unsigned long flags;
-
-	if (!IsDeviceValid(dev)) {
-		return -ENODEV;
-	}
-	devAttr = &DMA_gDeviceAttribute[dev];
-
-	local_irq_save(flags);
-
-	devAttr->userData = userData;
-	devAttr->devHandler = devHandler;
-
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dma_set_device_handler);