diff options
Diffstat (limited to 'sys/dev/usb/uhcivar.h')
| -rw-r--r-- | sys/dev/usb/uhcivar.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/sys/dev/usb/uhcivar.h b/sys/dev/usb/uhcivar.h new file mode 100644 index 0000000..b7102f3 --- /dev/null +++ b/sys/dev/usb/uhcivar.h @@ -0,0 +1,179 @@ +/* $NetBSD: uhcivar.h,v 1.3 1998/07/26 00:40:59 augustss Exp $ */ + +/* + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * Author: Lennart Augustsson <augustss@carlstedt.se> + * 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; + +/* + * 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 { +#if defined(__FreeBSD__) + struct callout_handle callout_handler; +#endif + struct uhci_softc *sc; + usbd_request_handle reqh; + uhci_soft_td_t *stdstart; + uhci_soft_td_t *stdend; + LIST_ENTRY(uhci_intr_info) list; +#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 */ + uhci_physaddr_t physaddr; /* and its physical address. */ +}; +#define UHCI_TD_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 */ + uhci_physaddr_t physaddr; /* and its physical address. */ + int pos; /* Timeslot position */ + uhci_intr_info_t *intr_info; /* Who to call on completion. */ +}; +#define UHCI_QH_CHUNK 128 /*(PAGE_SIZE / UHCI_QH_SIZE)*/ + +/* Only used for buffer free list. */ +struct uhci_buffer { + struct uhci_buffer *next; +}; +#define UHCI_BUFFER_SIZE 64 +#define UHCI_BUFFER_CHUNK 64 /*(PAGE_SIZE / UHCI_BUFFER_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 */ +#if defined(__NetBSD__) + void *sc_ih; /* interrupt vectoring */ + bus_space_tag_t iot; + bus_space_handle_t ioh; + + bus_dma_tag_t sc_dmatag; /* DMA tag */ + /* XXX should keep track of all DMA memory */ +#elif defined(__FreeBSD__) + int sc_iobase; + int sc_int; + int unit; +#endif + + uhci_physaddr_t *sc_pframes; + 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; + struct uhci_buffer *sc_freebuffers; + + u_int8_t sc_addr; /* device address */ + u_int8_t sc_conf; /* device configuration */ + + char sc_isreset; + + 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 + +#if defined(__NetBSD__) + usb_dma_t *sc_mallocs; +#endif + + char sc_vendor[16]; +} uhci_softc_t; + +usbd_status uhci_init __P((uhci_softc_t *)); +int uhci_intr __P((void *)); +#if 0 +void uhci_reset __P((void *)); +#endif + +#ifdef USB_DEBUG +#define DPRINTF(x) if (uhcidebug) printf x +#define DPRINTFN(n,x) if (uhcidebug>(n)) printf x +extern int uhcidebug; +#else +#define DPRINTF(x) +#define DPRINTFN(n,x) +#endif + |
