/* $OpenBSD: ehcivar.h,v 1.18 2009/10/13 19:33:17 pirofti Exp $ */ /* $NetBSD: ehcivar.h,v 1.19 2005/04/29 15:04:29 augustss Exp $ */ /* * 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. * * 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; } 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) typedef struct ehci_soft_itd { ehci_itd_t itd; union { struct { /* soft_itds links in a periodic frame*/ struct ehci_soft_itd *next; struct ehci_soft_itd *prev; } frame_list; /* circular list of free itds */ LIST_ENTRY(ehci_soft_itd) free_list; } u; struct ehci_soft_itd *xfer_next; /* Next soft_itd in xfer */ ehci_physaddr_t physaddr; usb_dma_t dma; int offs; int slot; struct timeval t; /* store free time */ } ehci_soft_itd_t; #define EHCI_ITD_SIZE ((sizeof(struct ehci_soft_itd) + EHCI_QH_ALIGN - 1) / EHCI_ITD_ALIGN * EHCI_ITD_ALIGN) #define EHCI_ITD_CHUNK (EHCI_PAGE_SIZE / EHCI_ITD_SIZE) struct ehci_xfer { struct usbd_xfer xfer; struct usb_task abort_task; TAILQ_ENTRY(ehci_xfer) inext; /* list of active xfers */ ehci_soft_qtd_t *sqtdstart; ehci_soft_qtd_t *sqtdend; ehci_soft_itd_t *itdstart; ehci_soft_itd_t *itdend; u_int isoc_len; 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_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_FREE_LIST_INTERVAL 100 typedef struct ehci_softc { struct usbd_bus sc_bus; /* base device */ bus_space_tag_t iot; bus_space_handle_t ioh; bus_size_t sc_size; u_int sc_offs; /* offset to operational regs */ int sc_flags; /* misc flags */ #define EHCIF_DROPPED_INTR_WORKAROUND 0x01 char sc_vendor[16]; /* 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 */ void *sc_powerhook; /* cookie from power hook */ void *sc_shutdownhook; /* cookie from shutdown hook */ usb_dma_t sc_fldma; ehci_link_t *sc_flist; u_int sc_flsize; u_int sc_rand; /* XXX need proper intr scheduling */ struct ehci_soft_islot sc_islots[EHCI_INTRQHS]; /* jcmm - an array matching sc_flist, but with software pointers, * not hardware address pointers */ struct ehci_soft_itd **sc_softitds; TAILQ_HEAD(, ehci_xfer) sc_intrhead; ehci_soft_qh_t *sc_freeqhs; ehci_soft_qtd_t *sc_freeqtds; LIST_HEAD(sc_freeitds, ehci_soft_itd) sc_freeitds; 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; char sc_softwake; u_int32_t sc_eintrs; ehci_soft_qh_t *sc_async_head; SIMPLEQ_HEAD(, usbd_xfer) sc_free_xfers; /* free xfers */ struct rwlock sc_doorbell_lock; struct timeout sc_tmo_intrlist; struct device *sc_child; /* /dev/usb# device */ char sc_dying; } 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); int ehci_activate(struct device *, int); void ehci_shutdown(void *);