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

Pull ARM soc general cleanups from Olof Johansson:
 "This is a large branch that contains a handful of different cleanups:

   - Fixing up the I/O space remapping on PCI on ARM.  This is a series
     from Rob Herring that restructures how all pci devices allocate I/O
     space, and it's part of the work to allow multiplatform kernels.
   - A number of cleanup series for OMAP, moving and removing some
     headers, sparse irq rework and in general preparation for
     multiplatform.
   - Final removal of all non-DT boards for Tegra, it is now
     device-tree-only!
   - Removal of a stale platform, nxp4008.  It's an old mobile chipset
     that is no longer in use, and was very likely never really used
     with a mainline kernel.  We have not been able to find anyone
     interested in keeping it around in the kernel.
   - Removal of the legacy dmaengine driver on tegra

  + A handful of other things that I haven't described above."

Fix up some conflicts with the staging tree (and because nxp4008 was
removed)

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits)
  ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
  ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
  ARM: mmp: using for_each_set_bit to simplify the code
  ARM: tegra: harmony: fix ldo7 regulator-name
  ARM: OMAP2+: Make omap4-keypad.h local
  ARM: OMAP2+: Make l4_3xxx.h local
  ARM: OMAP2+: Make l4_2xxx.h local
  ARM: OMAP2+: Make l3_3xxx.h local
  ARM: OMAP2+: Make l3_2xxx.h local
  ARM: OMAP1: Move irda.h from plat to mach
  ARM: OMAP2+: Make hdq1w.h local
  ARM: OMAP2+: Make gpmc-smsc911x.h local
  ARM: OMAP2+: Make gpmc-smc91x.h local
  ARM: OMAP1: Move flash.h from plat to mach
  ARM: OMAP2+: Make debug-devices.h local
  ARM: OMAP1: Move board-voiceblue.h from plat to mach
  ARM: OMAP1: Move board-sx1.h from plat to mach
  ARM: OMAP2+: Make omap-wakeupgen.h local
  ARM: OMAP2+: Make omap-secure.h local
  ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
  ...

1 files changed, 596 insertions, 0 deletions

diff --git a/arch/arm/mach-bcmring/include/mach/csp/dmacHw.h b/arch/arm/mach-bcmring/include/mach/csp/dmacHw.h
new file mode 100644
index 000000000000..9dc90f46a84d
--- /dev/null
+++ b/arch/arm/mach-bcmring/include/mach/csp/dmacHw.h
@@ -0,0 +1,596 @@
+/*****************************************************************************
+* 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    dmacHw.h
+*
+*  @brief   API definitions for low level DMA controller driver
+*
+*/
+/****************************************************************************/
+#ifndef _DMACHW_H
+#define _DMACHW_H
+
+#include <linux/stddef.h>
+
+#include <linux/types.h>
+#include <mach/csp/dmacHw_reg.h>
+
+/* Define DMA Channel ID using DMA controller number (m) and channel number (c).
+
+   System specific channel ID should be defined as follows
+
+   For example:
+
+   #include <dmacHw.h>
+   ...
+   #define systemHw_LCD_CHANNEL_ID                dmacHw_MAKE_CHANNEL_ID(0,5)
+   #define systemHw_SWITCH_RX_CHANNEL_ID          dmacHw_MAKE_CHANNEL_ID(0,0)
+   #define systemHw_SWITCH_TX_CHANNEL_ID          dmacHw_MAKE_CHANNEL_ID(0,1)
+   #define systemHw_APM_RX_CHANNEL_ID             dmacHw_MAKE_CHANNEL_ID(0,3)
+   #define systemHw_APM_TX_CHANNEL_ID             dmacHw_MAKE_CHANNEL_ID(0,4)
+   ...
+   #define systemHw_SHARED1_CHANNEL_ID            dmacHw_MAKE_CHANNEL_ID(1,4)
+   #define systemHw_SHARED2_CHANNEL_ID            dmacHw_MAKE_CHANNEL_ID(1,5)
+   #define systemHw_SHARED3_CHANNEL_ID            dmacHw_MAKE_CHANNEL_ID(0,6)
+   ...
+*/
+#define dmacHw_MAKE_CHANNEL_ID(m, c)         (m << 8 | c)
+
+typedef enum {
+	dmacHw_CHANNEL_PRIORITY_0 = dmacHw_REG_CFG_LO_CH_PRIORITY_0,	/* Channel priority 0. Lowest priority DMA channel */
+	dmacHw_CHANNEL_PRIORITY_1 = dmacHw_REG_CFG_LO_CH_PRIORITY_1,	/* Channel priority 1 */
+	dmacHw_CHANNEL_PRIORITY_2 = dmacHw_REG_CFG_LO_CH_PRIORITY_2,	/* Channel priority 2 */
+	dmacHw_CHANNEL_PRIORITY_3 = dmacHw_REG_CFG_LO_CH_PRIORITY_3,	/* Channel priority 3 */
+	dmacHw_CHANNEL_PRIORITY_4 = dmacHw_REG_CFG_LO_CH_PRIORITY_4,	/* Channel priority 4 */
+	dmacHw_CHANNEL_PRIORITY_5 = dmacHw_REG_CFG_LO_CH_PRIORITY_5,	/* Channel priority 5 */
+	dmacHw_CHANNEL_PRIORITY_6 = dmacHw_REG_CFG_LO_CH_PRIORITY_6,	/* Channel priority 6 */
+	dmacHw_CHANNEL_PRIORITY_7 = dmacHw_REG_CFG_LO_CH_PRIORITY_7	/* Channel priority 7. Highest priority DMA channel */
+} dmacHw_CHANNEL_PRIORITY_e;
+
+/* Source destination master interface */
+typedef enum {
+	dmacHw_SRC_MASTER_INTERFACE_1 = dmacHw_REG_CTL_SMS_1,	/* Source DMA master interface 1 */
+	dmacHw_SRC_MASTER_INTERFACE_2 = dmacHw_REG_CTL_SMS_2,	/* Source DMA master interface 2 */
+	dmacHw_DST_MASTER_INTERFACE_1 = dmacHw_REG_CTL_DMS_1,	/* Destination DMA master interface 1 */
+	dmacHw_DST_MASTER_INTERFACE_2 = dmacHw_REG_CTL_DMS_2	/* Destination DMA master interface 2 */
+} dmacHw_MASTER_INTERFACE_e;
+
+typedef enum {
+	dmacHw_SRC_TRANSACTION_WIDTH_8 = dmacHw_REG_CTL_SRC_TR_WIDTH_8,	/* Source 8 bit  (1 byte) per transaction */
+	dmacHw_SRC_TRANSACTION_WIDTH_16 = dmacHw_REG_CTL_SRC_TR_WIDTH_16,	/* Source 16 bit (2 byte) per transaction */
+	dmacHw_SRC_TRANSACTION_WIDTH_32 = dmacHw_REG_CTL_SRC_TR_WIDTH_32,	/* Source 32 bit (4 byte) per transaction */
+	dmacHw_SRC_TRANSACTION_WIDTH_64 = dmacHw_REG_CTL_SRC_TR_WIDTH_64,	/* Source 64 bit (8 byte) per transaction */
+	dmacHw_DST_TRANSACTION_WIDTH_8 = dmacHw_REG_CTL_DST_TR_WIDTH_8,	/* Destination 8 bit  (1 byte) per transaction */
+	dmacHw_DST_TRANSACTION_WIDTH_16 = dmacHw_REG_CTL_DST_TR_WIDTH_16,	/* Destination 16 bit (2 byte) per transaction */
+	dmacHw_DST_TRANSACTION_WIDTH_32 = dmacHw_REG_CTL_DST_TR_WIDTH_32,	/* Destination 32 bit (4 byte) per transaction */
+	dmacHw_DST_TRANSACTION_WIDTH_64 = dmacHw_REG_CTL_DST_TR_WIDTH_64	/* Destination 64 bit (8 byte) per transaction */
+} dmacHw_TRANSACTION_WIDTH_e;
+
+typedef enum {
+	dmacHw_SRC_BURST_WIDTH_0 = dmacHw_REG_CTL_SRC_MSIZE_0,	/* Source No burst */
+	dmacHw_SRC_BURST_WIDTH_4 = dmacHw_REG_CTL_SRC_MSIZE_4,	/* Source 4  X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+	dmacHw_SRC_BURST_WIDTH_8 = dmacHw_REG_CTL_SRC_MSIZE_8,	/* Source 8  X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+	dmacHw_SRC_BURST_WIDTH_16 = dmacHw_REG_CTL_SRC_MSIZE_16,	/* Source 16 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+	dmacHw_DST_BURST_WIDTH_0 = dmacHw_REG_CTL_DST_MSIZE_0,	/* Destination No burst */
+	dmacHw_DST_BURST_WIDTH_4 = dmacHw_REG_CTL_DST_MSIZE_4,	/* Destination 4  X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+	dmacHw_DST_BURST_WIDTH_8 = dmacHw_REG_CTL_DST_MSIZE_8,	/* Destination 8  X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+	dmacHw_DST_BURST_WIDTH_16 = dmacHw_REG_CTL_DST_MSIZE_16	/* Destination 16 X dmacHw_TRANSACTION_WIDTH_xxx bytes per burst */
+} dmacHw_BURST_WIDTH_e;
+
+typedef enum {
+	dmacHw_TRANSFER_TYPE_MEM_TO_MEM = dmacHw_REG_CTL_TTFC_MM_DMAC,	/* Memory to memory transfer */
+	dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_MEM = dmacHw_REG_CTL_TTFC_PM_DMAC,	/* Peripheral to memory transfer */
+	dmacHw_TRANSFER_TYPE_MEM_TO_PERIPHERAL = dmacHw_REG_CTL_TTFC_MP_DMAC,	/* Memory to peripheral transfer */
+	dmacHw_TRANSFER_TYPE_PERIPHERAL_TO_PERIPHERAL = dmacHw_REG_CTL_TTFC_PP_DMAC	/* Peripheral to peripheral transfer */
+} dmacHw_TRANSFER_TYPE_e;
+
+typedef enum {
+	dmacHw_TRANSFER_MODE_PERREQUEST,	/* Block transfer per DMA request */
+	dmacHw_TRANSFER_MODE_CONTINUOUS,	/* Continuous transfer of streaming data */
+	dmacHw_TRANSFER_MODE_PERIODIC	/* Periodic transfer of streaming data */
+} dmacHw_TRANSFER_MODE_e;
+
+typedef enum {
+	dmacHw_SRC_ADDRESS_UPDATE_MODE_INC = dmacHw_REG_CTL_SINC_INC,	/* Increment source address after every transaction */
+	dmacHw_SRC_ADDRESS_UPDATE_MODE_DEC = dmacHw_REG_CTL_SINC_DEC,	/* Decrement source address after every transaction */
+	dmacHw_DST_ADDRESS_UPDATE_MODE_INC = dmacHw_REG_CTL_DINC_INC,	/* Increment destination address after every transaction */
+	dmacHw_DST_ADDRESS_UPDATE_MODE_DEC = dmacHw_REG_CTL_DINC_DEC,	/* Decrement destination address after every transaction */
+	dmacHw_SRC_ADDRESS_UPDATE_MODE_NC = dmacHw_REG_CTL_SINC_NC,	/* No change in source address after every transaction */
+	dmacHw_DST_ADDRESS_UPDATE_MODE_NC = dmacHw_REG_CTL_DINC_NC	/* No change in destination address after every transaction */
+} dmacHw_ADDRESS_UPDATE_MODE_e;
+
+typedef enum {
+	dmacHw_FLOW_CONTROL_DMA,	/* DMA working as flow controller (default) */
+	dmacHw_FLOW_CONTROL_PERIPHERAL	/* Peripheral working as flow controller */
+} dmacHw_FLOW_CONTROL_e;
+
+typedef enum {
+	dmacHw_TRANSFER_STATUS_BUSY,	/* DMA Transfer ongoing */
+	dmacHw_TRANSFER_STATUS_DONE,	/* DMA Transfer completed */
+	dmacHw_TRANSFER_STATUS_ERROR	/* DMA Transfer error */
+} dmacHw_TRANSFER_STATUS_e;
+
+typedef enum {
+	dmacHw_INTERRUPT_DISABLE,	/* Interrupt disable  */
+	dmacHw_INTERRUPT_ENABLE	/* Interrupt enable */
+} dmacHw_INTERRUPT_e;
+
+typedef enum {
+	dmacHw_INTERRUPT_STATUS_NONE = 0x0,	/* No DMA interrupt */
+	dmacHw_INTERRUPT_STATUS_TRANS = 0x1,	/* End of DMA transfer interrupt */
+	dmacHw_INTERRUPT_STATUS_BLOCK = 0x2,	/* End of block transfer interrupt */
+	dmacHw_INTERRUPT_STATUS_ERROR = 0x4	/* Error interrupt */
+} dmacHw_INTERRUPT_STATUS_e;
+
+typedef enum {
+	dmacHw_CONTROLLER_ATTRIB_CHANNEL_NUM,	/* Number of DMA channel */
+	dmacHw_CONTROLLER_ATTRIB_CHANNEL_MAX_BLOCK_SIZE,	/* Maximum channel burst size */
+	dmacHw_CONTROLLER_ATTRIB_MASTER_INTF_NUM,	/* Number of DMA master interface */
+	dmacHw_CONTROLLER_ATTRIB_CHANNEL_BUS_WIDTH,	/* Channel Data bus width */
+	dmacHw_CONTROLLER_ATTRIB_CHANNEL_FIFO_SIZE	/* Channel FIFO size */
+} dmacHw_CONTROLLER_ATTRIB_e;
+
+typedef unsigned long dmacHw_HANDLE_t;	/* DMA channel handle */
+typedef uint32_t dmacHw_ID_t;	/* DMA channel Id.  Must be created using
+				   "dmacHw_MAKE_CHANNEL_ID" macro
+				 */
+/* DMA channel configuration parameters */
+typedef struct {
+	uint32_t srcPeripheralPort;	/* Source peripheral port */
+	uint32_t dstPeripheralPort;	/* Destination peripheral port */
+	uint32_t srcStatusRegisterAddress;	/* Source status register address */
+	uint32_t dstStatusRegisterAddress;	/* Destination status register address of type  */
+
+	uint32_t srcGatherWidth;	/* Number of bytes gathered before successive gather opearation */
+	uint32_t srcGatherJump;	/* Number of bytes jumpped before successive gather opearation */
+	uint32_t dstScatterWidth;	/* Number of bytes sacattered before successive scatter opearation */
+	uint32_t dstScatterJump;	/* Number of bytes jumpped  before successive scatter opearation */
+	uint32_t maxDataPerBlock;	/* Maximum number of bytes to be transferred per block/descrptor.
+					   0 = Maximum possible.
+					 */
+
+	dmacHw_ADDRESS_UPDATE_MODE_e srcUpdate;	/* Source address update mode */
+	dmacHw_ADDRESS_UPDATE_MODE_e dstUpdate;	/* Destination address update mode */
+	dmacHw_TRANSFER_TYPE_e transferType;	/* DMA transfer type  */
+	dmacHw_TRANSFER_MODE_e transferMode;	/* DMA transfer mode */
+	dmacHw_MASTER_INTERFACE_e srcMasterInterface;	/* DMA source interface  */
+	dmacHw_MASTER_INTERFACE_e dstMasterInterface;	/* DMA destination interface */
+	dmacHw_TRANSACTION_WIDTH_e srcMaxTransactionWidth;	/* Source transaction width   */
+	dmacHw_TRANSACTION_WIDTH_e dstMaxTransactionWidth;	/* Destination transaction width */
+	dmacHw_BURST_WIDTH_e srcMaxBurstWidth;	/* Source burst width */
+	dmacHw_BURST_WIDTH_e dstMaxBurstWidth;	/* Destination burst width */
+	dmacHw_INTERRUPT_e blockTransferInterrupt;	/* Block trsnafer interrupt */
+	dmacHw_INTERRUPT_e completeTransferInterrupt;	/* Complete DMA trsnafer interrupt */
+	dmacHw_INTERRUPT_e errorInterrupt;	/* Error interrupt */
+	dmacHw_CHANNEL_PRIORITY_e channelPriority;	/* Channel priority */
+	dmacHw_FLOW_CONTROL_e flowControler;	/* Data flow controller */
+} dmacHw_CONFIG_t;
+
+/****************************************************************************/
+/**
+*  @brief   Initializes DMA
+*
+*  This function initializes DMA CSP driver
+*
+*  @note
+*     Must be called before using any DMA channel
+*/
+/****************************************************************************/
+void dmacHw_initDma(void);
+
+/****************************************************************************/
+/**
+*  @brief   Exit function for  DMA
+*
+*  This function isolates DMA from the system
+*
+*/
+/****************************************************************************/
+void dmacHw_exitDma(void);
+
+/****************************************************************************/
+/**
+*  @brief   Gets a handle to a DMA channel
+*
+*  This function returns a handle, representing a control block of a particular DMA channel
+*
+*  @return  -1       - On Failure
+*            handle  - On Success, representing a channel control block
+*
+*  @note
+*     None  Channel ID must be created using "dmacHw_MAKE_CHANNEL_ID" macro
+*/
+/****************************************************************************/
+dmacHw_HANDLE_t dmacHw_getChannelHandle(dmacHw_ID_t channelId	/* [ IN ] DMA Channel Id */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Initializes a DMA channel for use
+*
+*  This function initializes and resets a DMA channel for use
+*
+*  @return  -1     - On Failure
+*            0     - On Success
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+int dmacHw_initChannel(dmacHw_HANDLE_t handle	/*  [ IN ] DMA Channel handle  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief  Estimates number of descriptor needed to perform certain DMA transfer
+*
+*
+*  @return  On failure : -1
+*           On success : Number of descriptor count
+*
+*
+*/
+/****************************************************************************/
+int dmacHw_calculateDescriptorCount(dmacHw_CONFIG_t *pConfig,	/*   [ IN ] Configuration settings */
+				    void *pSrcAddr,	/*   [ IN ] Source (Peripheral/Memory) address */
+				    void *pDstAddr,	/*   [ IN ] Destination (Peripheral/Memory) address */
+				    size_t dataLen	/*   [ IN ] Data length in bytes */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Initializes descriptor ring
+*
+*  This function will initializes the descriptor ring of a DMA channel
+*
+*
+*  @return   -1 - On failure
+*             0 - On success
+*  @note
+*     - "len" parameter should be obtained from "dmacHw_descriptorLen"
+*     - Descriptor buffer MUST be 32 bit aligned and uncached as it
+*       is accessed by ARM and DMA
+*/
+/****************************************************************************/
+int dmacHw_initDescriptor(void *pDescriptorVirt,	/*  [ IN ] Virtual address of uncahced buffer allocated to form descriptor ring */
+			  uint32_t descriptorPhyAddr,	/*  [ IN ] Physical address of pDescriptorVirt (descriptor buffer) */
+			  uint32_t len,	/*  [ IN ] Size of the pBuf */
+			  uint32_t num	/*  [ IN ] Number of descriptor in the ring */
+    );
+
+/****************************************************************************/
+/**
+*  @brief  Finds amount of memory required to form a descriptor ring
+*
+*
+*  @return   Number of bytes required to form a descriptor ring
+*
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+uint32_t dmacHw_descriptorLen(uint32_t descCnt	/*  [ IN ] Number of descriptor in the ring */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Configure DMA channel
+*
+*  @return  0  : On success
+*           -1 : On failure
+*/
+/****************************************************************************/
+int dmacHw_configChannel(dmacHw_HANDLE_t handle,	/*  [ IN ] DMA Channel handle  */
+			 dmacHw_CONFIG_t *pConfig	/*   [ IN ] Configuration settings */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Set descriptors for known data length
+*
+*  When DMA has to work as a flow controller, this function prepares the
+*  descriptor chain to transfer data
+*
+*  from:
+*          - Memory to memory
+*          - Peripheral to memory
+*          - Memory to Peripheral
+*          - Peripheral to Peripheral
+*
+*  @return   -1 - On failure
+*             0 - On success
+*
+*/
+/****************************************************************************/
+int dmacHw_setDataDescriptor(dmacHw_CONFIG_t *pConfig,	/*  [ IN ] Configuration settings */
+			     void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+			     void *pSrcAddr,	/*  [ IN ] Source (Peripheral/Memory) address */
+			     void *pDstAddr,	/*  [ IN ] Destination (Peripheral/Memory) address */
+			     size_t dataLen	/*  [ IN ] Length in bytes   */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Indicates whether DMA transfer is in progress or completed
+*
+*  @return   DMA transfer status
+*          dmacHw_TRANSFER_STATUS_BUSY:         DMA Transfer ongoing
+*          dmacHw_TRANSFER_STATUS_DONE:         DMA Transfer completed
+*          dmacHw_TRANSFER_STATUS_ERROR:        DMA Transfer error
+*
+*/
+/****************************************************************************/
+dmacHw_TRANSFER_STATUS_e dmacHw_transferCompleted(dmacHw_HANDLE_t handle	/*   [ IN ] DMA Channel handle  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Set descriptor carrying control information
+*
+*  This function will be used to send specific control information to the device
+*  using the DMA channel
+*
+*
+*  @return  -1 - On failure
+*            0 - On success
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+int dmacHw_setControlDescriptor(dmacHw_CONFIG_t *pConfig,	/*  [ IN ] Configuration settings */
+				void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+				uint32_t ctlAddress,	/*  [ IN ] Address of the device control register  */
+				uint32_t control	/*  [ IN ] Device control information */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Read data DMA transferred to memory
+*
+*  This function will read data that has been DMAed to memory while transferring from:
+*          - Memory to memory
+*          - Peripheral to memory
+*
+*  @return  0 - No more data is available to read
+*           1 - More data might be available to read
+*
+*/
+/****************************************************************************/
+int dmacHw_readTransferredData(dmacHw_HANDLE_t handle,	/*  [ IN ] DMA Channel handle    */
+			       dmacHw_CONFIG_t *pConfig,	/*  [ IN ]  Configuration settings */
+			       void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+			       void **ppBbuf,	/*  [ OUT ] Data received */
+			       size_t *pLlen	/*  [ OUT ] Length of the data received */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Prepares descriptor ring, when source peripheral working as a flow controller
+*
+*  This function will form the descriptor ring by allocating buffers, when source peripheral
+*  has to work as a flow controller to transfer data from:
+*           - Peripheral to memory.
+*
+*  @return  -1 - On failure
+*            0 - On success
+*
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+int dmacHw_setVariableDataDescriptor(dmacHw_HANDLE_t handle,	/*  [ IN ] DMA Channel handle   */
+				     dmacHw_CONFIG_t *pConfig,	/*  [ IN ] Configuration settings */
+				     void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+				     uint32_t srcAddr,	/*  [ IN ] Source peripheral address */
+				     void *(*fpAlloc) (int len),	/*  [ IN ] Function pointer  that provides destination memory */
+				     int len,	/*  [ IN ] Number of bytes "fpAlloc" will allocate for destination */
+				     int num	/*  [ IN ] Number of descriptor to set */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Program channel register to initiate transfer
+*
+*  @return  void
+*
+*
+*  @note
+*     - Descriptor buffer MUST ALWAYS be flushed before calling this function
+*     - This function should also be called from ISR to program the channel with
+*       pending descriptors
+*/
+/****************************************************************************/
+void dmacHw_initiateTransfer(dmacHw_HANDLE_t handle,	/*   [ IN ] DMA Channel handle */
+			     dmacHw_CONFIG_t *pConfig,	/*   [ IN ] Configuration settings */
+			     void *pDescriptor	/*   [ IN ] Descriptor buffer  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Resets descriptor control information
+*
+*  @return  void
+*/
+/****************************************************************************/
+void dmacHw_resetDescriptorControl(void *pDescriptor	/*   [ IN ] Descriptor buffer  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Program channel register to stop transfer
+*
+*  Ensures the channel is not doing any transfer after calling this function
+*
+*  @return  void
+*
+*/
+/****************************************************************************/
+void dmacHw_stopTransfer(dmacHw_HANDLE_t handle	/*   [ IN ] DMA Channel handle */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Check the existence of pending descriptor
+*
+*  This function confirmes if there is any pending descriptor in the chain
+*  to program the channel
+*
+*  @return  1 : Channel need to be programmed with pending descriptor
+*           0 : No more pending descriptor to programe the channel
+*
+*  @note
+*     - This function should be called from ISR in case there are pending
+*       descriptor to program the channel.
+*
+*     Example:
+*
+*     dmac_isr ()
+*     {
+*         ...
+*         if (dmacHw_descriptorPending (handle))
+*         {
+*            dmacHw_initiateTransfer (handle);
+*         }
+*     }
+*
+*/
+/****************************************************************************/
+uint32_t dmacHw_descriptorPending(dmacHw_HANDLE_t handle,	/*   [ IN ] DMA Channel handle */
+				  void *pDescriptor	/*   [ IN ] Descriptor buffer */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Deallocates source or destination memory, allocated
+*
+*  This function can be called to deallocate data memory that was DMAed successfully
+*
+*  @return  -1  - On failure
+*            0  - On success
+*
+*  @note
+*     This function will be called ONLY, when source OR destination address is pointing
+*     to dynamic memory
+*/
+/****************************************************************************/
+int dmacHw_freeMem(dmacHw_CONFIG_t *pConfig,	/*  [ IN ] Configuration settings */
+		   void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+		   void (*fpFree) (void *)	/*  [ IN ] Function pointer to free data memory */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Clears the interrupt
+*
+*  This function clears the DMA channel specific interrupt
+*
+*  @return   N/A
+*
+*  @note
+*     Must be called under the context of ISR
+*/
+/****************************************************************************/
+void dmacHw_clearInterrupt(dmacHw_HANDLE_t handle	/*  [ IN ] DMA Channel handle  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Returns the cause of channel specific DMA interrupt
+*
+*  This function returns the cause of interrupt
+*
+*  @return  Interrupt status, each bit representing a specific type of interrupt
+*           of type dmacHw_INTERRUPT_STATUS_e
+*  @note
+*           This function should be called under the context of ISR
+*/
+/****************************************************************************/
+dmacHw_INTERRUPT_STATUS_e dmacHw_getInterruptStatus(dmacHw_HANDLE_t handle	/*  [ IN ] DMA Channel handle  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Indentifies a DMA channel causing interrupt
+*
+*  This functions returns a channel causing interrupt of type dmacHw_INTERRUPT_STATUS_e
+*
+*  @return  NULL   : No channel causing DMA interrupt
+*           ! NULL : Handle to a channel causing DMA interrupt
+*  @note
+*     dmacHw_clearInterrupt() must be called with a valid handle after calling this function
+*/
+/****************************************************************************/
+dmacHw_HANDLE_t dmacHw_getInterruptSource(void);
+
+/****************************************************************************/
+/**
+*  @brief   Sets channel specific user data
+*
+*  This function associates user data to a specific DMA channel
+*
+*/
+/****************************************************************************/
+void dmacHw_setChannelUserData(dmacHw_HANDLE_t handle,	/*  [ IN ] DMA Channel handle  */
+			       void *userData	/*  [ IN ] User data  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Gets channel specific user data
+*
+*  This function returns user data specific to a DMA channel
+*
+*  @return   user data
+*/
+/****************************************************************************/
+void *dmacHw_getChannelUserData(dmacHw_HANDLE_t handle	/*  [ IN ] DMA Channel handle  */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Displays channel specific registers and other control parameters
+*
+*
+*  @return  void
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+void dmacHw_printDebugInfo(dmacHw_HANDLE_t handle,	/*  [ IN ] DMA Channel handle  */
+			   void *pDescriptor,	/*  [ IN ] Descriptor buffer  */
+			   int (*fpPrint) (const char *, ...)	/*  [ IN ] Print callback function */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Provides DMA controller attributes
+*
+*
+*  @return  DMA controller attributes
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+uint32_t dmacHw_getDmaControllerAttribute(dmacHw_HANDLE_t handle,	/*  [ IN ]  DMA Channel handle  */
+					  dmacHw_CONTROLLER_ATTRIB_e attr	/*  [ IN ]  DMA Controller attribute of type  dmacHw_CONTROLLER_ATTRIB_e */
+    );
+
+#endif /* _DMACHW_H */