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/* $OpenBSD: ehcivar.h,v 1.20 2010/09/29 20:06:38 kettenis 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;
usb_dma_t dma; /* qTD's DMA infos */
int offs; /* qTD's offset in usb_dma_t */
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;
usb_dma_t dma; /* QH's DMA infos */
int offs; /* QH's offset in usb_dma_t */
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_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 *);
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