8c895d718b
- Some cleanup and improvements in the uhci and ohci drivers - Support for plugging and unplugging devices improved - Now available is bulk transport over OHCI controllers - Resume and suspend have been temporarily been disabled again. Proper support for it is available in the uhci.c and ohci.c files but I have not yet spent the brain cycles to use it. - OpenBSD now uses the USB stack as well - Add FreeBSD tags
182 lines
6.3 KiB
C
182 lines
6.3 KiB
C
/* $NetBSD: uhcivar.h,v 1.12 1999/08/22 23:41:00 augustss Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (augustss@carlstedt.se) at
|
|
* Carlstedt Research & Technology.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* To avoid having 1024 TDs for each isochronous transfer we introduce
|
|
* a virtual frame list. Every UHCI_VFRAMELIST_COUNT entries in the real
|
|
* frame list points to a non-active TD. These, in turn, which form the
|
|
* starts of the virtual frame list. This also has the advantage that it
|
|
* simplifies linking in/out TD/QH in the schedule.
|
|
* Furthermore, initially each of the inactive TDs point to an inactive
|
|
* QH that forms the start of the interrupt traffic for that slot.
|
|
* Each of these QHs point to the same QH that is the start of control
|
|
* traffic.
|
|
*
|
|
* UHCI_VFRAMELIST_COUNT should be a power of 2 and <= UHCI_FRAMELIST_COUNT.
|
|
*/
|
|
#define UHCI_VFRAMELIST_COUNT 128
|
|
|
|
typedef struct uhci_soft_qh uhci_soft_qh_t;
|
|
typedef struct uhci_soft_td uhci_soft_td_t;
|
|
|
|
typedef union {
|
|
struct uhci_soft_qh *sqh;
|
|
struct uhci_soft_td *std;
|
|
} uhci_soft_td_qh_t;
|
|
|
|
/*
|
|
* An interrupt info struct contains the information needed to
|
|
* execute a requested routine when the controller generates an
|
|
* interrupt. Since we cannot know which transfer generated
|
|
* the interrupt all structs are linked together so they can be
|
|
* searched at interrupt time.
|
|
*/
|
|
typedef struct uhci_intr_info {
|
|
struct uhci_softc *sc;
|
|
usbd_request_handle reqh;
|
|
uhci_soft_td_t *stdstart;
|
|
uhci_soft_td_t *stdend;
|
|
LIST_ENTRY(uhci_intr_info) list;
|
|
#if defined(__FreeBSD__)
|
|
struct callout_handle timeout_handle;
|
|
#endif /* defined(__FreeBSD__) */
|
|
#ifdef DIAGNOSTIC
|
|
int isdone;
|
|
#endif
|
|
} uhci_intr_info_t;
|
|
|
|
/*
|
|
* Extra information that we need for a TD.
|
|
*/
|
|
struct uhci_soft_td {
|
|
uhci_td_t td; /* The real TD, must be first */
|
|
uhci_soft_td_qh_t link; /* soft version of the td_link field */
|
|
uhci_physaddr_t physaddr; /* TD's physical address. */
|
|
};
|
|
/*
|
|
* Make the size such that it is a multiple of UHCI_TD_ALIGN. This way
|
|
* we can pack a number of soft TD together and have the real TS well
|
|
* aligned.
|
|
* NOTE: Minimum size is 32 bytes.
|
|
*/
|
|
#define UHCI_STD_SIZE ((sizeof (struct uhci_soft_td) + UHCI_TD_ALIGN - 1) / UHCI_TD_ALIGN * UHCI_TD_ALIGN)
|
|
#define UHCI_STD_CHUNK 128 /*(PAGE_SIZE / UHCI_TD_SIZE)*/
|
|
|
|
/*
|
|
* Extra information that we need for a QH.
|
|
*/
|
|
struct uhci_soft_qh {
|
|
uhci_qh_t qh; /* The real QH, must be first */
|
|
uhci_soft_qh_t *hlink; /* soft version of qh_hlink */
|
|
uhci_soft_td_t *elink; /* soft version of qh_elink */
|
|
uhci_physaddr_t physaddr; /* QH's physical address. */
|
|
int pos; /* Timeslot position */
|
|
uhci_intr_info_t *intr_info; /* Who to call on completion. */
|
|
/* XXX should try to shrink with 4 bytes to fit into 32 bytes */
|
|
};
|
|
/* See comment about UHCI_STD_SIZE. */
|
|
#define UHCI_SQH_SIZE ((sizeof (struct uhci_soft_qh) + UHCI_QH_ALIGN - 1) / UHCI_QH_ALIGN * UHCI_QH_ALIGN)
|
|
#define UHCI_SQH_CHUNK 128 /*(PAGE_SIZE / UHCI_QH_SIZE)*/
|
|
|
|
/*
|
|
* Information about an entry in the virtial frame list.
|
|
*/
|
|
struct uhci_vframe {
|
|
uhci_soft_td_t *htd; /* pointer to dummy TD */
|
|
uhci_soft_td_t *etd; /* pointer to last TD */
|
|
uhci_soft_qh_t *hqh; /* pointer to dummy QH */
|
|
uhci_soft_qh_t *eqh; /* pointer to last QH */
|
|
u_int bandwidth; /* max bandwidth used by this frame */
|
|
};
|
|
|
|
typedef struct uhci_softc {
|
|
struct usbd_bus sc_bus; /* base device */
|
|
bus_space_tag_t iot;
|
|
bus_space_handle_t ioh;
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
void *sc_ih; /* interrupt vectoring */
|
|
|
|
bus_dma_tag_t sc_dmatag; /* DMA tag */
|
|
/* XXX should keep track of all DMA memory */
|
|
#endif /* defined(__FreeBSD__) */
|
|
|
|
uhci_physaddr_t *sc_pframes;
|
|
usb_dma_t sc_dma;
|
|
struct uhci_vframe sc_vframes[UHCI_VFRAMELIST_COUNT];
|
|
|
|
uhci_soft_qh_t *sc_ctl_start; /* dummy QH for control */
|
|
uhci_soft_qh_t *sc_ctl_end; /* last control QH */
|
|
uhci_soft_qh_t *sc_bulk_start; /* dummy QH for bulk */
|
|
uhci_soft_qh_t *sc_bulk_end; /* last bulk transfer */
|
|
|
|
uhci_soft_td_t *sc_freetds;
|
|
uhci_soft_qh_t *sc_freeqhs;
|
|
|
|
u_int8_t sc_addr; /* device address */
|
|
u_int8_t sc_conf; /* device configuration */
|
|
|
|
char sc_isreset;
|
|
|
|
#if defined(__NetBSD__)
|
|
char sc_suspend;
|
|
#endif
|
|
usbd_request_handle sc_has_timo;
|
|
|
|
int sc_intrs;
|
|
LIST_HEAD(, uhci_intr_info) sc_intrhead;
|
|
|
|
/* Info for the root hub interrupt channel. */
|
|
int sc_ival;
|
|
|
|
char sc_vflock;
|
|
#define UHCI_HAS_LOCK 1
|
|
#define UHCI_WANT_LOCK 2
|
|
|
|
char sc_vendor[16];
|
|
int sc_id_vendor;
|
|
} uhci_softc_t;
|
|
|
|
usbd_status uhci_init __P((uhci_softc_t *));
|
|
int uhci_intr __P((void *));
|
|
#if 0
|
|
void uhci_reset __P((void *));
|
|
#endif
|
|
|