16f309f0e2
---snip--- FYI this bit isn't needed for FreeBSD - I think it came from either OpenBSD or NetBSD where arc4random() wasn't available during cold boot. ---snip--- Explained by: iedowse
190 lines
6.6 KiB
C
190 lines
6.6 KiB
C
/* $NetBSD: ehcivar.h,v 1.19 2005/04/29 15:04:29 augustss Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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typedef struct ehci_soft_qtd {
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ehci_qtd_t qtd;
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struct ehci_soft_qtd *nextqtd; /* mirrors nextqtd in TD */
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ehci_physaddr_t physaddr;
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usbd_xfer_handle xfer;
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LIST_ENTRY(ehci_soft_qtd) hnext;
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u_int16_t len;
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} ehci_soft_qtd_t;
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#define EHCI_SQTD_SIZE ((sizeof (struct ehci_soft_qtd) + EHCI_QTD_ALIGN - 1) / EHCI_QTD_ALIGN * EHCI_QTD_ALIGN)
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#define EHCI_SQTD_CHUNK (EHCI_PAGE_SIZE / EHCI_SQTD_SIZE)
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typedef struct ehci_soft_qh {
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ehci_qh_t qh;
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struct ehci_soft_qh *next;
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struct ehci_soft_qh *prev;
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struct ehci_soft_qtd *sqtd;
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ehci_physaddr_t physaddr;
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int islot; /* Interrupt list slot. */
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} ehci_soft_qh_t;
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#define EHCI_SQH_SIZE ((sizeof (struct ehci_soft_qh) + EHCI_QH_ALIGN - 1) / EHCI_QH_ALIGN * EHCI_QH_ALIGN)
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#define EHCI_SQH_CHUNK (EHCI_PAGE_SIZE / EHCI_SQH_SIZE)
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struct ehci_xfer {
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struct usbd_xfer xfer;
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struct usb_task abort_task;
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LIST_ENTRY(ehci_xfer) inext; /* list of active xfers */
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ehci_soft_qtd_t *sqtdstart;
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ehci_soft_qtd_t *sqtdend;
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u_int32_t ehci_xfer_flags;
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#ifdef DIAGNOSTIC
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int isdone;
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#endif
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};
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#define EHCI_XFER_ABORTING 0x0001 /* xfer is aborting. */
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#define EHCI_XFER_ABORTWAIT 0x0002 /* abort completion is being awaited. */
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#define EXFER(xfer) ((struct ehci_xfer *)(xfer))
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/*
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* Information about an entry in the interrupt list.
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*/
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struct ehci_soft_islot {
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ehci_soft_qh_t *sqh; /* Queue Head. */
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};
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#define EHCI_FRAMELIST_MAXCOUNT 1024
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#define EHCI_IPOLLRATES 8 /* Poll rates (1ms, 2, 4, 8 ... 128) */
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#define EHCI_INTRQHS ((1 << EHCI_IPOLLRATES) - 1)
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#define EHCI_MAX_POLLRATE (1 << (EHCI_IPOLLRATES - 1))
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#define EHCI_IQHIDX(lev, pos) \
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((((pos) & ((1 << (lev)) - 1)) | (1 << (lev))) - 1)
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#define EHCI_ILEV_IVAL(lev) (1 << (lev))
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#define EHCI_HASH_SIZE 128
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#define EHCI_COMPANION_MAX 8
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#define EHCI_SCFLG_DONEINIT 0x0001 /* ehci_init() has been called. */
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typedef struct ehci_softc {
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struct usbd_bus sc_bus; /* base device */
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int sc_flags;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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bus_size_t sc_size;
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#if defined(__FreeBSD__)
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void *ih;
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struct resource *io_res;
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struct resource *irq_res;
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#endif
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u_int sc_offs; /* offset to operational regs */
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char sc_vendor[32]; /* vendor string for root hub */
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int sc_id_vendor; /* vendor ID for root hub */
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u_int32_t sc_cmd; /* shadow of cmd reg during suspend */
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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void *sc_powerhook; /* cookie from power hook */
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void *sc_shutdownhook; /* cookie from shutdown hook */
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#endif
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u_int sc_ncomp;
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u_int sc_npcomp;
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struct usbd_bus *sc_comps[EHCI_COMPANION_MAX];
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usb_dma_t sc_fldma;
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ehci_link_t *sc_flist;
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u_int sc_flsize;
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#ifndef __FreeBSD__
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u_int sc_rand; /* XXX need proper intr scheduling */
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#endif
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struct ehci_soft_islot sc_islots[EHCI_INTRQHS];
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LIST_HEAD(, ehci_xfer) sc_intrhead;
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ehci_soft_qh_t *sc_freeqhs;
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ehci_soft_qtd_t *sc_freeqtds;
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int sc_noport;
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u_int8_t sc_addr; /* device address */
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u_int8_t sc_conf; /* device configuration */
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usbd_xfer_handle sc_intrxfer;
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char sc_isreset;
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#ifdef USB_USE_SOFTINTR
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char sc_softwake;
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#endif /* USB_USE_SOFTINTR */
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u_int32_t sc_eintrs;
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ehci_soft_qh_t *sc_async_head;
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SIMPLEQ_HEAD(, usbd_xfer) sc_free_xfers; /* free xfers */
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struct lock sc_doorbell_lock;
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usb_callout_t sc_tmo_pcd;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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device_ptr_t sc_child; /* /dev/usb# device */
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#endif
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char sc_dying;
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#if defined(__NetBSD__)
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struct usb_dma_reserve sc_dma_reserve;
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#endif
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} ehci_softc_t;
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#define EREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (a))
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#define EREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (a))
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#define EREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (a))
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#define EWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (a), (x))
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#define EWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (a), (x))
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#define EWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (a), (x))
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#define EOREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
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#define EOREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
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#define EOREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a))
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#define EOWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
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#define EOWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
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#define EOWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x))
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usbd_status ehci_init(ehci_softc_t *);
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int ehci_intr(void *);
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int ehci_detach(ehci_softc_t *, int);
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int ehci_activate(device_ptr_t, enum devact);
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#endif
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void ehci_power(int state, void *priv);
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void ehci_shutdown(void *v);
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#define MS_TO_TICKS(ms) ((ms) * hz / 1000)
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