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Diffstat (limited to 'package/platform/lantiq/ltq-hcd/src/ifxhcd.h')
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diff --git a/package/platform/lantiq/ltq-hcd/src/ifxhcd.h b/package/platform/lantiq/ltq-hcd/src/ifxhcd.h deleted file mode 100644 index 243c5f5..0000000 --- a/package/platform/lantiq/ltq-hcd/src/ifxhcd.h +++ /dev/null @@ -1,758 +0,0 @@ -/***************************************************************************** - ** FILE NAME : ifxhcd.h - ** PROJECT : IFX USB sub-system V3 - ** MODULES : IFX USB sub-system Host and Device driver - ** SRC VERSION : 3.2 - ** DATE : 1/Jan/2011 - ** 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 : Copyright (c) 2010 - ** LANTIQ DEUTSCHLAND GMBH, - ** Am Campeon 3, 85579 Neubiberg, Germany - ** - ** This program is free software; you can redistribute it and/or modify - ** it under the terms of the GNU General Public License as published by - ** the Free Software Foundation; either version 2 of the License, or - ** (at your option) any later version. - ** - ** Version Control Section ** - ** $Author$ - ** $Date$ - ** $Revisions$ - ** $Log$ Revision history - *****************************************************************************/ - -/* - * This file contains code fragments from Synopsys HS OTG Linux Software Driver. - * For this code the following notice is applicable: - * - * ========================================================================== - * - * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, - * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless - * otherwise expressly agreed to in writing between Synopsys and you. - * - * The Software IS NOT an item of Licensed Software or Licensed Product under - * any End User Software License Agreement or Agreement for Licensed Product - * with Synopsys or any supplement thereto. You are permitted to use and - * redistribute this Software in source and binary forms, with or without - * modification, provided that redistributions of source code must retain this - * notice. You may not view, use, disclose, copy or distribute this file or - * any information contained herein except pursuant to this license grant from - * Synopsys. If you do not agree with this notice, including the disclaimer - * below, then you are not authorized to use the Software. - * - * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * ========================================================================== */ - -/*! - \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__ - - -#define __STRICT_ORDER__ - - -#include <linux/list.h> -#include <linux/usb.h> - -#include <linux/usb/hcd.h> - -#include "ifxusb_cif.h" -#include "ifxusb_plat.h" - - -#undef __INNAKSTOP__ -#if !defined(__INNAKSTOP__) && defined(__INNAKSTOP_CTRL__) - #define __INNAKSTOP__ 1 -#endif -#if !defined(__INNAKSTOP__) && defined(__INNAKSTOP_BULK__) - #define __INNAKSTOP__ 1 -#endif - -#undef __PINGSTOP__ -#if !defined(__PINGSTOP__) && defined(__PINGSTOP_CTRL__) - #define __PINGSTOP__ 1 -#endif -#if !defined(__PINGSTOP__) && defined(__PINGSTOP_BULK__) - #define __PINGSTOP__ 1 -#endif - -#undef __NAKSTOP__ -#if defined(__INNAKSTOP__) || defined(__PINGSTOP__) - #define __NAKSTOP__ 1 -#endif - - -/* Phases for control transfers.*/ -typedef enum ifxhcd_epqh_phase { - EPQH_IDLE=0, - EPQH_DISABLING, -// EPQH_COMPLETING, - EPQH_STDBY, - EPQH_READY, - EPQH_ACTIVE -} ifxhcd_epqh_phase_e; - -/* Phases for control transfers.*/ -typedef enum ifxhcd_urbd_phase { - URBD_IDLE=0, - URBD_ACTIVE, - URBD_STARTING, - URBD_STARTED, - URBD_FINISHING, //URB_Complete already scheduled - URBD_COMPLETING, //To URB_Complete, it's normal finish - URBD_DEQUEUEING, //To URB_Complete, it's abnormal finish -} ifxhcd_urbd_phase_e; - -/* Phases for control transfers.*/ -typedef enum ifxhcd_hc_phase { - HC_IDLE=0, - HC_ASSIGNED, - HC_WAITING, - HC_STARTING, - HC_STARTED, - HC_STOPPING, - HC_STOPPED, -} ifxhcd_hc_phase_e; - -/*! - \addtogroup IFXUSB_HCD - */ -/*@{*/ - -/*! \typedef ifxhcd_control_phase_e - \brief Phases for control transfers. -*/ - -typedef enum ifxhcd_control_phase { - IFXHCD_CONTROL_SETUP, - IFXHCD_CONTROL_DATA, - IFXHCD_CONTROL_STATUS -} ifxhcd_control_phase_e; - -/*! \typedef ifxhcd_halt_status_e - \brief 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_NO_URB, // HC stopper manually, downward - HC_XFER_NO_EPQH, // HC stopper manually, downward - #ifdef __NAKSTOP__ - HC_XFER_NAK, // HC stopped by nak monitor, downward - #endif - #if defined(__INTRNAKRETRY__) || defined(__INTRINCRETRY__) - HC_XFER_INTR_NAK_RETRY, // HC stopped by nak monitor, downward - #endif -} ifxhcd_halt_status_e; - -struct ifxhcd_urbd; -struct ifxhcd_hc ; -struct ifxhcd_epqh ; -struct ifxhcd_hcd; - -/*! typedef ifxhcd_urbd_t - \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 { - ifxhcd_urbd_phase_e phase; - struct list_head ql; // Hook for EPQH->urbd_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. */ - - #if defined(__UNALIGNED_BUF_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 - #if defined(__UNALIGNED_BUF_ADJ__) || defined(__UNALIGNED_BUF_CHK__) - unsigned aligned_checked : 1; - #endif - unsigned is_in :1; - #ifndef __STRICT_ORDER__ - struct tasklet_struct complete_urb_sub; - #endif - - // For ALL XFER - uint8_t error_count; /*!< Holds the number of bus errors that have occurred for a transaction - within this transfer. - */ - // 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. - */ - #endif - int status; -} ifxhcd_urbd_t; - -/*! typedef ifxhcd_epqh_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 ifxhcd_hcd *ifxhcd; - struct usb_host_endpoint *sysep; - uint8_t devno; - - ifxhcd_epqh_phase_e phase; - struct list_head ql_all; - struct list_head ql; // Hook for EP Queues - struct list_head urbd_list; /*!< List of URBDs for this EPQH. */ - #ifdef __STRICT_ORDER__ - struct list_head release_list; - struct tasklet_struct complete_urb_sub; - #endif - 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. */ - 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. */ - #ifdef __EPQD_DESTROY_TIMEOUT__ - struct timer_list destroy_timer; - #endif - - unsigned need_split : 1 ; - unsigned do_ping : 1 ; /*!< Set to 1 to indicate that a PING request should be issued on this - channel. If 0, process normally. - */ - unsigned pause : 1; - unsigned period_do : 1; - uint16_t interval; /*!< Interval between transfers in (micro)frames. (for INTR)*/ - uint16_t period_counter; /*!< Interval between transfers in (micro)frames. */ - - #ifdef __EN_ISOC__ - struct tasklet_struct tasklet_next_isoc; - uint8_t isoc_now; - uint32_t isoc_start_frame; - // For SPLITed ISOC XFER only - #ifdef __EN_ISOC_SPLIT__ - 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 - #endif - spinlock_t urbd_list_lock; - int urbd_count; -} ifxhcd_epqh_t; - - -/*! typedef ifxhcd_hc_t - \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 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. */ - ifxhcd_hc_phase_e phase; - - 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 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 */ - - unsigned sof_delay :16; - unsigned erron : 1; - - #ifdef __NAKSTOP__ - unsigned stop_on : 1; -// unsigned wait_for_sof_quick : 1; - #endif - - 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 - 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 */ - #if defined(__EN_ISOC__) && defined(__EN_ISOC_SPLIT__) - uint8_t isoc_xact_pos; /*!< Split transaction position */ - #endif -} ifxhcd_hc_t; - - -/*! typedef ifxhcd_hcd_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 - { - 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. - */ - 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 /*!< buffer size of status phase in CTRL xfer */ - - struct list_head epqh_list_all; - struct list_head epqh_list_np; - struct list_head epqh_list_intr; - #ifdef __EN_ISOC__ - struct list_head epqh_list_isoc; - #endif - - uint32_t lastframe; - - uint16_t pkt_remaining; - uint16_t pkt_remaining_reload; - uint16_t pkt_remaining_reload_hs; - uint16_t pkt_remaining_reload_fs; - uint16_t pkt_remaining_reload_ls; - #define PKT_REMAINING_RELOAD_HS 88 - #define PKT_REMAINING_RELOAD_FS 10 - #define PKT_REMAINING_RELOAD_LS 20 - #ifdef __EN_ISOC__ - uint8_t isoc_ep_count; - #endif - - spinlock_t epqh_list_lock; - spinlock_t epqh_list_all_lock; - - struct timer_list host_probe_timer; - struct timer_list autoprobe_timer; - - unsigned power_status; - int probe_sec; - int autoprobe_sec; - #ifdef __DYN_SOF_INTR__ - uint32_t dyn_sof_count; - #define DYN_SOF_COUNT_DEF 40000 - #endif - struct tasklet_struct tasklet_select_eps; /*!< Tasket to do a reset */ - struct tasklet_struct tasklet_free_epqh_list ; /*!< Tasket to do a reset */ - unsigned disconnecting : 1 ; - - uint8_t pkt_count_limit_bo; - uint8_t pkt_count_limit_bi; -} 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); -} - - -extern ifxhcd_epqh_t * sysep_to_epqh(ifxhcd_hcd_t *_ifxhcd, struct usb_host_endpoint *_sysep); - -/* HCD Create/Destroy Functions */ - extern int ifxhcd_init (ifxhcd_hcd_t *_ifxhcd); - extern void ifxhcd_remove(ifxhcd_hcd_t *_ifxhcd); - -/*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(ifxhcd_hcd_t *_ifxhcd, ifxhcd_hc_t *_ifxhc); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) -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); -#else -extern int ifxhcd_urb_enqueue(struct usb_hcd *_syshcd, struct urb *_urb, gfp_t mem_flags); -extern int ifxhcd_urb_dequeue(struct usb_hcd *_syshcd, struct urb *_urb, int status); -#endif -extern irqreturn_t ifxhcd_irq(struct usb_hcd *_syshcd); - -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 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 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 int 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 void ifxhcd_epqh_free (ifxhcd_epqh_t *_epqh); -extern void select_eps (ifxhcd_hcd_t *_ifxhcd); -extern void ifxhcd_epqh_idle(ifxhcd_epqh_t *_epqh); -extern void ifxhcd_epqh_idle_periodic(ifxhcd_epqh_t *_epqh); -extern ifxhcd_epqh_t *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) - - - -/*! Internal debug function */ -void ifxhcd_dump_state(ifxhcd_hcd_t *_ifxhcd); - -/*@}*//*IFXUSB_HCD*/ - -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); -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) -extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, struct device *dev, char *bus_name); -#else -extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, struct device *dev, const char *bus_name); -#endif - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) -extern void usb_hcd_giveback_urb (struct usb_hcd *syshcd, struct urb *urb); -#else -extern void usb_hcd_giveback_urb (struct usb_hcd *syshcd, struct urb *urb,int status); -#endif - -extern void usb_put_hcd (struct usb_hcd *syshcd); -extern long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount); -extern char *syserr(int errno); - - - -static inline void INIT_EPQH_LIST_ALL(ifxhcd_hcd_t *_ifxhcd) -{ - spin_lock_init(&_ifxhcd->epqh_list_all_lock); -} -static inline void LOCK_EPQH_LIST_ALL(ifxhcd_hcd_t *_ifxhcd) -{ - spin_lock(&_ifxhcd->epqh_list_all_lock); -} -static inline void UNLOCK_EPQH_LIST_ALL(ifxhcd_hcd_t *_ifxhcd) -{ - spin_unlock(&_ifxhcd->epqh_list_all_lock); -} - -static inline void INIT_EPQH_LIST(ifxhcd_hcd_t *_ifxhcd) -{ - spin_lock_init(&_ifxhcd->epqh_list_lock); -} -static inline void LOCK_EPQH_LIST(ifxhcd_hcd_t *_ifxhcd) -{ - spin_lock(&_ifxhcd->epqh_list_lock); -} -static inline void UNLOCK_EPQH_LIST(ifxhcd_hcd_t *_ifxhcd) -{ - spin_unlock(&_ifxhcd->epqh_list_lock); -} - -static inline void INIT_URBD_LIST(ifxhcd_epqh_t *_epqh) -{ - spin_lock_init(&_epqh->urbd_list_lock); -} -static inline void LOCK_URBD_LIST(ifxhcd_epqh_t *_epqh) -{ - spin_lock(&_epqh->urbd_list_lock); -} -static inline void UNLOCK_URBD_LIST(ifxhcd_epqh_t *_epqh) -{ - spin_unlock(&_epqh->urbd_list_lock); -} - -#endif // __IFXHCD_H__ - |