FreeBSD/Linux Kernel Cross Reference
sys/mips/rmi/ehcivar.h

     /*      $NetBSD: ehcivar.h,v 1.19 2005/04/29 15:04:29 augustss Exp $    */
     /*      $FreeBSD: releng/8.4/sys/mips/rmi/ehcivar.h 215938 2010-11-27 12:26:40Z jchandra $      */
     
     /*-
      * Copyright (c) 2001 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (lennart@augustsson.net).
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * 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.
     */
    
    typedef struct ehci_soft_qtd {
            ehci_qtd_t qtd;
            struct ehci_soft_qtd *nextqtd;  /* mirrors nextqtd in TD */
            ehci_physaddr_t physaddr;
            usbd_xfer_handle xfer;
                             LIST_ENTRY(ehci_soft_qtd) hnext;
            u_int16_t len;
    }             ehci_soft_qtd_t;
    
    #define EHCI_SQTD_SIZE ((sizeof (struct ehci_soft_qtd) + EHCI_QTD_ALIGN - 1) / EHCI_QTD_ALIGN * EHCI_QTD_ALIGN)
    #define EHCI_SQTD_CHUNK (EHCI_PAGE_SIZE / EHCI_SQTD_SIZE)
    
    typedef struct ehci_soft_qh {
            ehci_qh_t qh;
            struct ehci_soft_qh *next;
            struct ehci_soft_qh *prev;
            struct ehci_soft_qtd *sqtd;
            ehci_physaddr_t physaddr;
            int islot;              /* Interrupt list slot. */
    }            ehci_soft_qh_t;
    
    #define EHCI_SQH_SIZE ((sizeof (struct ehci_soft_qh) + EHCI_QH_ALIGN - 1) / EHCI_QH_ALIGN * EHCI_QH_ALIGN)
    #define EHCI_SQH_CHUNK (EHCI_PAGE_SIZE / EHCI_SQH_SIZE)
    
    struct ehci_xfer {
            struct usbd_xfer xfer;
            struct usb_task abort_task;
                     LIST_ENTRY(ehci_xfer) inext;   /* list of active xfers */
            ehci_soft_qtd_t *sqtdstart;
            ehci_soft_qtd_t *sqtdend;
            u_int32_t ehci_xfer_flags;
    #ifdef DIAGNOSTIC
            int isdone;
    #endif
    };
    
    #define EHCI_XFER_ABORTING      0x0001  /* xfer is aborting. */
    #define EHCI_XFER_ABORTWAIT     0x0002  /* abort completion is being awaited. */
    
    #define EXFER(xfer) ((struct ehci_xfer *)(xfer))
    
    /*
     * Information about an entry in the interrupt list.
     */
    struct ehci_soft_islot {
            ehci_soft_qh_t *sqh;    /* Queue Head. */
    };
    
    #define EHCI_FRAMELIST_MAXCOUNT 1024
    #define EHCI_IPOLLRATES         8       /* Poll rates (1ms, 2, 4, 8 ... 128) */
    #define EHCI_INTRQHS            ((1 << EHCI_IPOLLRATES) - 1)
    #define EHCI_MAX_POLLRATE       (1 << (EHCI_IPOLLRATES - 1))
    #define EHCI_IQHIDX(lev, pos)   \
        ((((pos) & ((1 << (lev)) - 1)) | (1 << (lev))) - 1)
    #define EHCI_ILEV_IVAL(lev)     (1 << (lev))
    
    #define EHCI_HASH_SIZE 128
    #define EHCI_COMPANION_MAX 8
    
    #define EHCI_SCFLG_DONEINIT     0x0001  /* ehci_init() has been called. */
   #define EHCI_SCFLG_LOSTINTRBUG  0x0002  /* workaround for VIA / ATI chipsets */
   
   typedef struct ehci_softc {
           struct usbd_bus sc_bus; /* base device */
           int sc_flags;
           bus_space_tag_t iot;
           bus_space_handle_t ioh;
           bus_size_t sc_size;
   #if defined(__FreeBSD__)
           void *ih;
   
           struct resource *io_res;
           struct resource *irq_res;
   #endif
           u_int sc_offs;          /* offset to operational regs */
   
           char sc_vendor[32];     /* vendor string for root hub */
           int sc_id_vendor;       /* vendor ID for root hub */
   
           u_int32_t sc_cmd;       /* shadow of cmd reg during suspend */
   #if defined(__NetBSD__) || defined(__OpenBSD__)
           void *sc_powerhook;     /* cookie from power hook */
           void *sc_shutdownhook;  /* cookie from shutdown hook */
   #endif
   
           u_int sc_ncomp;
           u_int sc_npcomp;
           struct usbd_bus *sc_comps[EHCI_COMPANION_MAX];
   
           usb_dma_t sc_fldma;
           ehci_link_t *sc_flist;
           u_int sc_flsize;
   #ifndef __FreeBSD__
           u_int sc_rand;          /* XXX need proper intr scheduling */
   #endif
   
           struct ehci_soft_islot sc_islots[EHCI_INTRQHS];
   
                           LIST_HEAD(, ehci_xfer) sc_intrhead;
   
           ehci_soft_qh_t *sc_freeqhs;
           ehci_soft_qtd_t *sc_freeqtds;
   
           int sc_noport;
           u_int8_t sc_addr;       /* device address */
           u_int8_t sc_conf;       /* device configuration */
           usbd_xfer_handle sc_intrxfer;
           char sc_isreset;
   #ifdef USB_USE_SOFTINTR
           char sc_softwake;
   #endif                          /* USB_USE_SOFTINTR */
   
           u_int32_t sc_eintrs;
           ehci_soft_qh_t *sc_async_head;
   
                          SIMPLEQ_HEAD(, usbd_xfer) sc_free_xfers; /* free xfers */
   
           struct lock sc_doorbell_lock;
   
           usb_callout_t sc_tmo_pcd;
           usb_callout_t sc_tmo_intrlist;
   
   #if defined(__NetBSD__) || defined(__OpenBSD__)
           device_ptr_t sc_child;  /* /dev/usb# device */
   #endif
           char sc_dying;
   #if defined(__NetBSD__)
           struct usb_dma_reserve sc_dma_reserve;
   #endif
   }          ehci_softc_t;
   
   #define EREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (a))
   #define EREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (a))
   #define EREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (a))
   #define EWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (a), (x))
   #define EWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (a), (x))
   #define EWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (a), (x))
   #define EOREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
   #define EOREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
   #define EOREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
   #define EOWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
   #define EOWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
   #define EOWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
   
   usbd_status ehci_init(ehci_softc_t *);
   int ehci_intr(void *);
   int ehci_detach(ehci_softc_t *, int);
   
   #if defined(__NetBSD__) || defined(__OpenBSD__)
   int ehci_activate(device_ptr_t, enum devact);
   
   #endif
   void ehci_power(int state, void *priv);
   void ehci_shutdown(void *v);
   
   #define MS_TO_TICKS(ms) ((ms) * hz / 1000)

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