branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 628 insertions, 0 deletions

diff --git a/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd.h b/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd.h
new file mode 100644
index 000000000..3a408513c
--- /dev/null
+++ b/target/linux/lantiq/files/drivers/usb/ifxhcd/ifxhcd.h
@@ -0,0 +1,628 @@
+/*****************************************************************************
+ **   FILE NAME       : ifxhcd.h
+ **   PROJECT         : IFX USB sub-system V3
+ **   MODULES         : IFX USB sub-system Host and Device driver
+ **   SRC VERSION     : 1.0
+ **   DATE            : 1/Jan/2009
+ **   AUTHOR          : Chen, Howard
+ **   DESCRIPTION     : This file contains the structures, constants, and interfaces for
+ **                     the Host Contoller Driver (HCD).
+ **
+ **                     The Host Controller Driver (HCD) is responsible for translating requests
+ **                     from the USB Driver into the appropriate actions on the IFXUSB controller.
+ **                     It isolates the USBD from the specifics of the controller by providing an
+ **                     API to the USBD.
+ **   FUNCTIONS       :
+ **   COMPILER        : gcc
+ **   REFERENCE       : Synopsys DWC-OTG Driver 2.7
+ **   COPYRIGHT       :
+ **  Version Control Section  **
+ **   $Author$
+ **   $Date$
+ **   $Revisions$
+ **   $Log$       Revision history
+*****************************************************************************/
+
+/*!
+  \defgroup IFXUSB_HCD HCD Interface
+  \ingroup IFXUSB_DRIVER_V3
+  \brief  The Host Controller Driver (HCD) is responsible for translating requests
+ from the USB Driver into the appropriate actions on the IFXUSB controller.
+ It isolates the USBD from the specifics of the controller by providing an
+ API to the USBD.
+ */
+
+
+/*!
+  \file ifxhcd.h
+  \ingroup IFXUSB_DRIVER_V3
+  \brief This file contains the structures, constants, and interfaces for
+ the Host Contoller Driver (HCD).
+ */
+
+#if !defined(__IFXHCD_H__)
+#define __IFXHCD_H__
+
+#include <linux/list.h>
+#include <linux/usb.h>
+
+#ifdef __USE_TIMER_4_SOF__
+#include <linux/hrtimer.h>
+#endif
+#include <linux/usb/hcd.h>
+
+#include "ifxusb_cif.h"
+#include "ifxusb_plat.h"
+
+
+
+/*!
+  \addtogroup IFXUSB_HCD
+ */
+/*@{*/
+
+/* Phases for control transfers.*/
+typedef enum ifxhcd_control_phase {
+	IFXHCD_CONTROL_SETUP,
+	IFXHCD_CONTROL_DATA,
+	IFXHCD_CONTROL_STATUS
+} ifxhcd_control_phase_e;
+
+/* Reasons for halting a host channel. */
+typedef enum ifxhcd_halt_status
+{
+	HC_XFER_NO_HALT_STATUS,         // Initial
+	HC_XFER_COMPLETE,               // Xact complete without error, upward
+	HC_XFER_URB_COMPLETE,           // Xfer complete without error, short upward
+	HC_XFER_STALL,                  // HC stopped abnormally, upward/downward
+	HC_XFER_XACT_ERR,               // HC stopped abnormally, upward
+	HC_XFER_FRAME_OVERRUN,          // HC stopped abnormally, upward
+	HC_XFER_BABBLE_ERR,             // HC stopped abnormally, upward
+	HC_XFER_AHB_ERR,                // HC stopped abnormally, upward
+	HC_XFER_DATA_TOGGLE_ERR,
+	HC_XFER_URB_DEQUEUE,            // HC stopper manually, downward
+	HC_XFER_NAK                     // HC stopped by nak monitor, downward
+} ifxhcd_halt_status_e;
+
+struct ifxhcd_urbd;
+struct ifxhcd_hc ;
+struct ifxhcd_epqh ;
+struct ifxhcd_hcd;
+
+/*!
+ \brief A URB Descriptor (URBD) holds the state of a bulk, control,
+  interrupt, or isochronous transfer. A single URBD is created for each URB
+  (of one of these types) submitted to the HCD. The transfer associated with
+  a URBD may require one or multiple transactions.
+
+  A URBD is linked to a EP Queue Head, which is entered in either the
+  isoc, intr or non-periodic schedule for execution. When a URBD is chosen for
+  execution, some or all of its transactions may be executed. After
+  execution, the state of the URBD is updated. The URBD may be retired if all
+  its transactions are complete or if an error occurred. Otherwise, it
+  remains in the schedule so more transactions can be executed later.
+ */
+typedef struct ifxhcd_urbd {
+	struct list_head          urbd_list_entry;  // Hook for EPQH->urbd_list and ifxhcd->urbd_complete_list
+	struct urb               *urb;              /*!< URB for this transfer */
+	                                            //struct urb {
+	                                            //  struct list_head urb_list;
+	                                            //  struct list_head anchor_list;
+	                                            //  struct usb_anchor * anchor;
+	                                            //  struct usb_device * dev;
+	                                            //  struct usb_host_endpoint * ep;
+	                                            //  unsigned int pipe;
+	                                            //  int status;
+	                                            //  unsigned int transfer_flags;
+	                                            //  void * transfer_buffer;
+	                                            //  dma_addr_t transfer_dma;
+	                                            //  u32 transfer_buffer_length;
+	                                            //  u32 actual_length;
+	                                            //  unsigned char * setup_packet;
+	                                            //  dma_addr_t setup_dma;
+	                                            //  int start_frame;
+	                                            //  int number_of_packets;
+	                                            //  int interval;
+	                                            //  int error_count;
+	                                            //  void * context;
+	                                            //  usb_complete_t complete;
+	                                            //  struct usb_iso_packet_descriptor iso_frame_desc[0];
+	                                            //};
+	                                            //urb_list         For use by current owner of the URB.
+	                                            //anchor_list      membership in the list of an anchor
+	                                            //anchor           to anchor URBs to a common mooring
+	                                            //dev              Identifies the USB device to perform the request.
+	                                            //ep               Points to the endpoint's data structure. Will
+	                                            //                 eventually replace pipe.
+	                                            //pipe             Holds endpoint number, direction, type, and more.
+	                                            //                 Create these values with the eight macros available; u
+	                                            //                 sb_{snd,rcv}TYPEpipe(dev,endpoint), where the TYPE is
+	                                            //                  "ctrl", "bulk", "int" or "iso". For example
+	                                            //                 usb_sndbulkpipe or usb_rcvintpipe. Endpoint numbers
+	                                            //                 range from zero to fifteen. Note that "in" endpoint two
+	                                            //                 is a different endpoint (and pipe) from "out" endpoint
+	                                            //                 two. The current configuration controls the existence,
+	                                            //                 type, and maximum packet size of any given endpoint.
+	                                            //status           This is read in non-iso completion functions to get
+	                                            //                 the status of the particular request. ISO requests
+	                                            //                 only use it to tell whether the URB was unlinked;
+	                                            //                 detailed status for each frame is in the fields of
+	                                            //                 the iso_frame-desc.
+	                                            //transfer_flags   A variety of flags may be used to affect how URB
+	                                            //                 submission, unlinking, or operation are handled.
+	                                            //                 Different kinds of URB can use different flags.
+	                                            //                      URB_SHORT_NOT_OK
+	                                            //                      URB_ISO_ASAP
+	                                            //                      URB_NO_TRANSFER_DMA_MAP
+	                                            //                      URB_NO_SETUP_DMA_MAP
+	                                            //                      URB_NO_FSBR
+	                                            //                      URB_ZERO_PACKET
+	                                            //                      URB_NO_INTERRUPT
+	                                            //transfer_buffer  This identifies the buffer to (or from) which the I/O
+	                                            //                 request will be performed (unless URB_NO_TRANSFER_DMA_MAP
+	                                            //                 is set). This buffer must be suitable for DMA; allocate it
+	                                            //                 with kmalloc or equivalent. For transfers to "in"
+	                                            //                 endpoints, contents of this buffer will be modified. This
+	                                            //                 buffer is used for the data stage of control transfers.
+	                                            //transfer_dma     When transfer_flags includes URB_NO_TRANSFER_DMA_MAP, the
+	                                            //                 device driver is saying that it provided this DMA address,
+	                                            //                 which the host controller driver should use in preference
+	                                            //                 to the transfer_buffer.
+	                                            //transfer_buffer_length How big is transfer_buffer. The transfer may be broken
+	                                            //                 up into chunks according to the current maximum packet size
+	                                            //                 for the endpoint, which is a function of the configuration
+	                                            //                 and is encoded in the pipe. When the length is zero, neither
+	                                            //                 transfer_buffer nor transfer_dma is used.
+	                                            //actual_length    This is read in non-iso completion functions, and it tells
+	                                            //                 how many bytes (out of transfer_buffer_length) were transferred.
+	                                            //                 It will normally be the same as requested, unless either an error
+	                                            //                 was reported or a short read was performed. The URB_SHORT_NOT_OK
+	                                            //                 transfer flag may be used to make such short reads be reported
+	                                            //                 as errors.
+	                                            //setup_packet     Only used for control transfers, this points to eight bytes of
+	                                            //                 setup data. Control transfers always start by sending this data
+	                                            //                 to the device. Then transfer_buffer is read or written, if needed.
+	                                            //setup_dma        For control transfers with URB_NO_SETUP_DMA_MAP set, the device
+	                                            //                 driver has provided this DMA address for the setup packet. The
+	                                            //                 host controller driver should use this in preference to setup_packet.
+	                                            //start_frame      Returns the initial frame for isochronous transfers.
+	                                            //number_of_packets Lists the number of ISO transfer buffers.
+	                                            //interval         Specifies the polling interval for interrupt or isochronous transfers.
+	                                            //                 The units are frames (milliseconds) for for full and low speed devices,
+	                                            //                 and microframes (1/8 millisecond) for highspeed ones.
+	                                            //error_count      Returns the number of ISO transfers that reported errors.
+	                                            //context          For use in completion functions. This normally points to request-specific
+	                                            //                 driver context.
+	                                            //complete         Completion handler. This URB is passed as the parameter to the completion
+	                                            //                 function. The completion function may then do what it likes with the URB,
+	                                            //                 including resubmitting or freeing it.
+	                                            //iso_frame_desc[0] Used to provide arrays of ISO transfer buffers and to collect the transfer
+	                                            //                 status for each buffer.
+
+	struct ifxhcd_epqh       *epqh;
+                                                // Actual data portion, not SETUP or STATUS in case of CTRL XFER
+                                                // DMA adjusted
+	uint8_t                  *setup_buff;       /*!< Pointer to the entire transfer buffer. (CPU accessable)*/
+	uint8_t                  *xfer_buff;        /*!< Pointer to the entire transfer buffer. (CPU accessable)*/
+	uint32_t                  xfer_len;         /*!< Total number of bytes to transfer in this xfer. */
+	unsigned                  is_in    :1;
+	unsigned                  is_active:1;
+
+	                          // For ALL XFER
+	uint8_t                   error_count;    /*!< Holds the number of bus errors that have occurred for a transaction
+	                                               within this transfer.
+	                                           */
+	/*== AVM/BC 20101111  Needed for URB Complete List ==*/
+	int 					  status;
+	                          // For ISOC XFER only
+	#ifdef __EN_ISOC__
+		int                       isoc_frame_index; /*!< Index of the next frame descriptor for an isochronous transfer. A
+		                                                 frame descriptor describes the buffer position and length of the
+		                                                 data to be transferred in the next scheduled (micro)frame of an
+		                                                 isochronous transfer. It also holds status for that transaction.
+		                                                 The frame index starts at 0.
+		                                             */
+		                          // For SPLITed ISOC XFER only
+		uint8_t                   isoc_split_pos;   /*!< Position of the ISOC split on full/low speed */
+		uint16_t                  isoc_split_offset;/*!< Position of the ISOC split in the buffer for the current frame */
+	#endif
+} ifxhcd_urbd_t;
+
+/*!
+ \brief A EP Queue Head (EPQH) holds the static characteristics of an endpoint and
+ maintains a list of transfers (URBDs) for that endpoint. A EPQH structure may
+ be entered in either the isoc, intr or non-periodic schedule.
+ */
+
+typedef struct ifxhcd_epqh {
+	struct list_head     epqh_list_entry;   // Hook for EP Queues
+	struct list_head     urbd_list;         /*!< List of URBDs for this EPQH. */
+	struct ifxhcd_hc    *hc;                /*!< Host channel currently processing transfers for this EPQH. */
+	struct ifxhcd_urbd  *urbd;              /*!< URBD currently assigned to a host channel for this EPQH. */
+	struct usb_host_endpoint *sysep;
+	uint8_t              ep_type;           /*!< Endpoint type. One of the following values:
+	                                             - IFXUSB_EP_TYPE_CTRL
+	                                             - IFXUSB_EP_TYPE_ISOC
+	                                             - IFXUSB_EP_TYPE_BULK
+	                                             - IFXUSB_EP_TYPE_INTR
+	                                         */
+	uint16_t             mps;               /*!< wMaxPacketSize Field of Endpoint Descriptor. */
+
+	/* == AVM/WK 20100710 Fix - Use toggle of usbcore ==*/
+	/*uint8_t              data_toggle;*/     /*!< Determines the PID of the next data packet
+	                                             One of the following values:
+	                                             - IFXHCD_HC_PID_DATA0
+	                                             - IFXHCD_HC_PID_DATA1
+	                                         */
+	uint8_t              is_active;
+
+	uint8_t              pkt_count_limit;
+	#ifdef __EPQD_DESTROY_TIMEOUT__
+		struct timer_list destroy_timer;
+	#endif
+
+	uint16_t             wait_for_sof;
+	uint8_t              need_split;        /*!< Full/low speed endpoint on high-speed hub requires split. */
+	uint16_t             interval;          /*!< Interval between transfers in (micro)frames. (for INTR)*/
+
+	uint16_t             period_counter;    /*!< Interval between transfers in (micro)frames. */
+	uint8_t              period_do;
+
+	uint8_t aligned_checked;
+
+	#if   defined(__UNALIGNED_BUFFER_ADJ__)
+		uint8_t using_aligned_setup;
+		uint8_t *aligned_setup;
+		uint8_t using_aligned_buf;
+		uint8_t *aligned_buf;
+		unsigned aligned_buf_len : 19;
+	#endif
+
+	uint8_t   *dump_buf;
+} ifxhcd_epqh_t;
+
+
+#if defined(__HC_XFER_TIMEOUT__)
+	struct ifxusb_core_if;
+	struct ifxhcd_hc;
+	typedef struct hc_xfer_info
+	{
+		struct ifxusb_core_if *core_if;
+		struct ifxhcd_hc      *hc;
+	} hc_xfer_info_t;
+#endif //defined(__HC_XFER_TIMEOUT__)
+
+
+/*!
+ \brief Host channel descriptor. This structure represents the state of a single
+ host channel when acting in host mode. It contains the data items needed to
+ transfer packets to an endpoint via a host channel.
+ */
+typedef struct ifxhcd_hc
+{
+	struct list_head hc_list_entry  ; // Hook to free hc
+	struct ifxhcd_epqh *epqh        ; /*!< EP Queue Head for the transfer being processed by this channel. */
+
+	uint8_t  hc_num                 ; /*!< Host channel number used for register address lookup */
+	uint8_t *xfer_buff              ; /*!< Pointer to the entire transfer buffer. */
+	uint32_t xfer_count             ; /*!< Number of bytes transferred so far. The offset of the begin of the buf */
+	uint32_t xfer_len               ; /*!< Total number of bytes to transfer in this xfer. */
+	uint16_t start_pkt_count        ; /*!< Packet count at start of transfer. Used to calculate the actual xfer size*/
+	ifxhcd_halt_status_e halt_status; /*!< Reason for halting the host channel. */
+
+	unsigned dev_addr       : 7; /*!< Device to access */
+	unsigned ep_num         : 4; /*!< EP to access */
+	unsigned is_in          : 1; /*!< EP direction. 0: OUT, 1: IN */
+	unsigned speed          : 2; /*!< EP speed. */
+	unsigned ep_type        : 2; /*!< Endpoint type. */
+	unsigned mps            :11; /*!< Max packet size in bytes */
+	unsigned data_pid_start : 2; /*!< PID for initial transaction. */
+	unsigned do_ping        : 1; /*!< Set to 1 to indicate that a PING request should be issued on this
+	                                  channel. If 0, process normally.
+	                              */
+
+	unsigned xfer_started   : 1; /*!< Flag to indicate whether the transfer has been started. Set to 1 if
+	                                  it has been started, 0 otherwise.
+	                              */
+	unsigned halting        : 1; /*!< Set to 1 if the host channel has been halted, but the core is not
+	                                  finished flushing queued requests. Otherwise 0.
+	                              */
+	unsigned short_rw       : 1; /*!< When Tx, means termination needed.
+	                                  When Rx, indicate Short Read  */
+	/* Split settings for the host channel */
+	unsigned split          : 2; /*!< Split: 0-Non Split, 1-SSPLIT, 2&3 CSPLIT */
+
+	/*== AVM/BC 20100701 - Workaround FullSpeed Interrupts with HiSpeed Hub ==*/
+	unsigned nyet_count;
+
+	/* nak monitor */
+	unsigned nak_retry_r    : 16;
+	unsigned nak_retry      : 16;
+		#define nak_retry_max     40000
+	unsigned nak_countdown  : 8;
+	unsigned nak_countdown_r: 8;
+		#define nak_countdown_max 1
+
+	uint16_t                  wait_for_sof;
+	ifxhcd_control_phase_e    control_phase;  /*!< Current phase for control transfers (Setup, Data, or Status). */
+	uint32_t ssplit_out_xfer_count; /*!< How many bytes transferred during SSPLIT OUT */
+	#ifdef __DEBUG__
+		uint32_t          start_hcchar_val;
+	#endif
+	#ifdef __HC_XFER_TIMEOUT__
+		hc_xfer_info_t    hc_xfer_info;
+		struct timer_list hc_xfer_timer;
+	#endif
+	uint32_t hcchar;
+
+	/* Split settings for the host channel */
+	uint8_t hub_addr;          /*!< Address of high speed hub */
+	uint8_t port_addr;         /*!< Port of the low/full speed device */
+	#ifdef __EN_ISOC__
+		uint8_t isoc_xact_pos;          /*!< Split transaction position */
+	#endif
+} ifxhcd_hc_t;
+
+
+/*!
+ \brief This structure holds the state of the HCD, including the non-periodic and
+ periodic schedules.
+ */
+typedef struct ifxhcd_hcd
+{
+	struct device *dev;
+	struct hc_driver hc_driver;
+	ifxusb_core_if_t core_if;   /*!< Pointer to the core interface structure. */
+	struct usb_hcd *syshcd;
+
+	volatile union ifxhcd_internal_flags
+	{
+		uint32_t d32;
+		struct
+		{
+			unsigned port_connect_status_change : 1;
+			unsigned port_connect_status        : 1;
+			unsigned port_reset_change          : 1;
+			unsigned port_enable_change         : 1;
+			unsigned port_suspend_change        : 1;
+			unsigned port_over_current_change   : 1;
+			unsigned reserved                   : 27;
+		} b;
+	} flags; /*!< Internal HCD Flags */
+
+	struct ifxhcd_hc ifxhc[MAX_EPS_CHANNELS];         /*!< Array of pointers to the host channel descriptors. Allows accessing
+	                                                       a host channel descriptor given the host channel number. This is
+	                                                       useful in interrupt handlers.
+	                                                   */
+	struct list_head free_hc_list;                    /*!< Free host channels in the controller. This is a list of ifxhcd_hc_t items. */
+	uint8_t   *status_buf;                            /*!< Buffer to use for any data received during the status phase of a
+	                                                       control transfer. Normally no data is transferred during the status
+	                                                       phase. This buffer is used as a bit bucket.
+	                                                   */
+		#define IFXHCD_STATUS_BUF_SIZE 64
+
+	struct list_head epqh_np_active;    // with URBD, with HC
+	struct list_head epqh_np_ready;     // with URBD, No HC
+
+	struct list_head epqh_intr_active;  // with URBD, with HC
+	struct list_head epqh_intr_ready;   // with URBD, no pass, No HC
+
+	#ifdef __EN_ISOC__
+		struct list_head epqh_isoc_active;  // with URBD, with HC
+		struct list_head epqh_isoc_ready;   // with URBD, no pass, No HC
+	#endif
+
+	/*== AVM/BC 20101111  URB Complete List ==*/
+	struct list_head urbd_complete_list;
+
+	struct list_head epqh_stdby;
+
+	/* AVM/BC 20101111 flags removed */
+	//unsigned process_channels_in_use  : 1;
+	//unsigned select_eps_in_use        : 1;
+
+	struct tasklet_struct  select_eps;                /*!<  Tasket to do a reset */
+	uint32_t lastframe;
+	spinlock_t	lock;
+#ifdef __USE_TIMER_4_SOF__
+	struct hrtimer hr_timer;
+#endif
+} ifxhcd_hcd_t;
+
+/* Gets the ifxhcd_hcd from a struct usb_hcd */
+static inline ifxhcd_hcd_t *syshcd_to_ifxhcd(struct usb_hcd *syshcd)
+{
+	return (ifxhcd_hcd_t *)(syshcd->hcd_priv[0]);
+}
+
+/* Gets the struct usb_hcd that contains a ifxhcd_hcd_t. */
+static inline struct usb_hcd *ifxhcd_to_syshcd(ifxhcd_hcd_t *ifxhcd)
+{
+	return (struct usb_hcd *)(ifxhcd->syshcd);
+}
+
+/*! \brief HCD Create/Destroy Functions */
+/*@{*/
+	extern int  ifxhcd_init  (ifxhcd_hcd_t *_ifxhcd);
+	extern void ifxhcd_remove(ifxhcd_hcd_t *_ifxhcd);
+/*@}*/
+
+/*! \brief Linux HC Driver API Functions */
+/*@{*/
+extern int  ifxhcd_start(struct usb_hcd *hcd);
+extern void ifxhcd_stop (struct usb_hcd *hcd);
+extern int  ifxhcd_get_frame_number(struct usb_hcd *hcd);
+
+
+/*!
+   \brief This function does the setup for a data transfer for a host channel and
+  starts the transfer. May be called in either Slave mode or DMA mode. In
+  Slave mode, the caller must ensure that there is sufficient space in the
+  request queue and Tx Data FIFO.
+
+  For an OUT transfer in Slave mode, it loads a data packet into the
+  appropriate FIFO. If necessary, additional data packets will be loaded in
+  the Host ISR.
+
+  For an IN transfer in Slave mode, a data packet is requested. The data
+  packets are unloaded from the Rx FIFO in the Host ISR. If necessary,
+  additional data packets are requested in the Host ISR.
+
+  For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ
+  register along with a packet count of 1 and the channel is enabled. This
+  causes a single PING transaction to occur. Other fields in HCTSIZ are
+  simply set to 0 since no data transfer occurs in this case.
+
+  For a PING transfer in DMA mode, the HCTSIZ register is initialized with
+  all the information required to perform the subsequent data transfer. In
+  addition, the Do Ping bit is set in the HCTSIZ register. In this case, the
+  controller performs the entire PING protocol, then starts the data
+  transfer.
+
+  @param _ifxhc Information needed to initialize the host channel. The xfer_len
+  value may be reduced to accommodate the max widths of the XferSize and
+  PktCnt fields in the HCTSIZn register. The multi_count value may be changed
+  to reflect the final xfer_len value.
+ */
+extern void ifxhcd_hc_start(ifxusb_core_if_t *_core_if, ifxhcd_hc_t *_ifxhc);
+
+//extern int ifxhcd_urb_enqueue(struct usb_hcd *_syshcd, struct usb_host_endpoint *_sysep, struct urb *_urb, gfp_t mem_flags);
+//extern int ifxhcd_urb_dequeue(struct usb_hcd *_syshcd, struct urb *_urb);
+extern irqreturn_t ifxhcd_irq(struct usb_hcd *_syshcd);
+int ifxhcd_urb_enqueue( struct usb_hcd           *_syshcd,
+                        /*--- struct usb_host_endpoint *_sysep, Parameter im 2.6.28 entfallen ---*/
+                        struct urb               *_urb,
+                        gfp_t                     _mem_flags);
+int ifxhcd_urb_dequeue( struct usb_hcd *_syshcd,
+                        struct urb *_urb, int status /* Parameter neu in 2.6.28 */);
+
+extern void ifxhcd_endpoint_disable(struct usb_hcd *_syshcd, struct usb_host_endpoint *_sysep);
+
+extern int ifxhcd_hub_status_data(struct usb_hcd *_syshcd, char *_buf);
+extern int ifxhcd_hub_control( struct usb_hcd *_syshcd,
+                               u16             _typeReq,
+                               u16             _wValue,
+                               u16             _wIndex,
+                               char           *_buf,
+                               u16             _wLength);
+
+/*@}*/
+
+/*! \brief Transaction Execution Functions */
+/*@{*/
+extern void                      ifxhcd_complete_urb       (ifxhcd_hcd_t *_ifxhcd, ifxhcd_urbd_t *_urbd,  int _status);
+
+/*@}*/
+
+/*! \brief Deferred Transaction Execution Functions */
+/*@{*/
+
+/*== AVM/BC 20101111  URB Complete List ==*/
+extern void                      defer_ifxhcd_complete_urb       (ifxhcd_hcd_t *_ifxhcd, ifxhcd_urbd_t *_urbd,  int _status);
+
+/*!
+   \brief Clears the transfer state for a host channel. This function is normally
+  called after a transfer is done and the host channel is being released.
+ */
+extern void ifxhcd_hc_cleanup(ifxusb_core_if_t *_core_if, ifxhcd_hc_t *_ifxhc);
+
+/*!
+   \brief Attempts to halt a host channel. This function should only be called in
+  Slave mode or to abort a transfer in either Slave mode or DMA mode. Under
+  normal circumstances in DMA mode, the controller halts the channel when the
+  transfer is complete or a condition occurs that requires application
+  intervention.
+
+  In slave mode, checks for a free request queue entry, then sets the Channel
+  Enable and Channel Disable bits of the Host Channel Characteristics
+  register of the specified channel to intiate the halt. If there is no free
+  request queue entry, sets only the Channel Disable bit of the HCCHARn
+  register to flush requests for this channel. In the latter case, sets a
+  flag to indicate that the host channel needs to be halted when a request
+  queue slot is open.
+
+  In DMA mode, always sets the Channel Enable and Channel Disable bits of the
+  HCCHARn register. The controller ensures there is space in the request
+  queue before submitting the halt request.
+
+  Some time may elapse before the core flushes any posted requests for this
+  host channel and halts. The Channel Halted interrupt handler completes the
+  deactivation of the host channel.
+ */
+extern void ifxhcd_hc_halt(ifxusb_core_if_t *_core_if,
+                    ifxhcd_hc_t *_ifxhc,
+                    ifxhcd_halt_status_e _halt_status);
+
+/*!
+   \brief Prepares a host channel for transferring packets to/from a specific
+  endpoint. The HCCHARn register is set up with the characteristics specified
+  in _ifxhc. Host channel interrupts that may need to be serviced while this
+  transfer is in progress are enabled.
+ */
+extern void ifxhcd_hc_init(ifxusb_core_if_t *_core_if, ifxhcd_hc_t *_ifxhc);
+
+/*!
+   \brief This function is called to handle the disconnection of host port.
+ */
+int32_t ifxhcd_disconnect(ifxhcd_hcd_t *_ifxhcd);
+/*@}*/
+
+/*!  \brief Interrupt Handler Functions */
+/*@{*/
+extern irqreturn_t ifxhcd_oc_irq(int _irq, void *_dev);
+
+extern int32_t ifxhcd_handle_oc_intr(ifxhcd_hcd_t *_ifxhcd);
+extern int32_t ifxhcd_handle_intr   (ifxhcd_hcd_t *_ifxhcd);
+/*@}*/
+
+
+/*! \brief Schedule Queue Functions */
+/*@{*/
+extern ifxhcd_epqh_t *ifxhcd_epqh_create (ifxhcd_hcd_t *_ifxhcd, struct urb *_urb);
+extern void           ifxhcd_epqh_free   (                       ifxhcd_epqh_t *_epqh);
+extern void           select_eps      (ifxhcd_hcd_t *_ifxhcd);
+extern void           process_channels(ifxhcd_hcd_t *_ifxhcd);
+extern void           process_channels_sub(ifxhcd_hcd_t *_ifxhcd);
+extern void 		  complete_channel(ifxhcd_hcd_t *_ifxhcd, ifxhcd_hc_t *_ifxhc, ifxhcd_urbd_t *_urbd);
+extern void           ifxhcd_epqh_ready(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh);
+extern void           ifxhcd_epqh_active(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh);
+extern void           ifxhcd_epqh_idle(ifxhcd_hcd_t *_ifxhcd, ifxhcd_epqh_t *_epqh);
+extern void           ifxhcd_epqh_idle_periodic(ifxhcd_epqh_t *_epqh);
+extern int            ifxhcd_urbd_create (ifxhcd_hcd_t *_ifxhcd,struct urb *_urb);
+/*@}*/
+
+/*! \brief Gets the usb_host_endpoint associated with an URB. */
+static inline struct usb_host_endpoint *ifxhcd_urb_to_endpoint(struct urb *_urb)
+{
+	struct usb_device *dev = _urb->dev;
+	int    ep_num = usb_pipeendpoint(_urb->pipe);
+
+	return (usb_pipein(_urb->pipe))?(dev->ep_in[ep_num]):(dev->ep_out[ep_num]);
+}
+
+/*!
+ * \brief Gets the endpoint number from a _bEndpointAddress argument. The endpoint is
+ * qualified with its direction (possible 32 endpoints per device).
+ */
+#define ifxhcd_ep_addr_to_endpoint(_bEndpointAddress_) ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \
+                                                       ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4)
+
+
+/* AVM/WK: not needed?
+
+extern struct usb_device *usb_alloc_dev  (struct usb_device *parent, struct usb_bus *, unsigned port);
+extern int                usb_add_hcd    (struct usb_hcd *syshcd, unsigned int irqnum, unsigned long irqflags);
+extern void               usb_remove_hcd (struct usb_hcd *syshcd);
+extern struct usb_hcd    *usb_create_hcd (const struct hc_driver *driver, struct device *dev, char *bus_name);
+extern void               usb_hcd_giveback_urb (struct usb_hcd *syshcd, struct urb *urb);
+extern void               usb_put_hcd       (struct usb_hcd *syshcd);
+extern long               usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount);
+
+*/
+/** Internal Functions */
+void         ifxhcd_dump_state(ifxhcd_hcd_t *_ifxhcd);
+extern char *syserr(int errno);
+
+/*@}*//*IFXUSB_HCD*/
+
+#endif // __IFXHCD_H__