368030a87a
host controllers to avoid the need to allocate any multi-page physically contiguous memory blocks. This makes it possible to use USB devices reliably on low-memory systems or when memory is too fragmented for contiguous allocations to succeed. The USB subsystem now uses bus_dmamap_load() directly on the buffers supplied by USB peripheral drivers, so this also avoids having to copy data back and forth before and after transfers. The ehci and ohci controllers support scatter/gather as long as the buffer is contiguous in the virtual address space. For uhci the hardware cannot handle a physical address discontinuity within a USB packet, so it is necessary to copy small memory fragments at times.
176 lines
5.6 KiB
C
176 lines
5.6 KiB
C
/* $NetBSD: ohcivar.h,v 1.30 2001/12/31 12:20:35 augustss Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 1998 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) at
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* Carlstedt Research & Technology.
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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 ohci_soft_ed {
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ohci_ed_t ed;
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struct ohci_soft_ed *next;
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ohci_physaddr_t physaddr;
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} ohci_soft_ed_t;
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#define OHCI_SED_SIZE ((sizeof (struct ohci_soft_ed) + OHCI_ED_ALIGN - 1) / OHCI_ED_ALIGN * OHCI_ED_ALIGN)
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#define OHCI_SED_CHUNK (PAGE_SIZE / OHCI_SED_SIZE)
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typedef struct ohci_soft_td {
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ohci_td_t td;
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struct ohci_soft_td *nexttd; /* mirrors nexttd in TD */
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struct ohci_soft_td *dnext; /* next in done list */
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ohci_physaddr_t physaddr;
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LIST_ENTRY(ohci_soft_td) hnext;
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usbd_xfer_handle xfer;
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u_int16_t len;
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u_int16_t flags;
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#define OHCI_CALL_DONE 0x0001
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#define OHCI_ADD_LEN 0x0002
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} ohci_soft_td_t;
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#define OHCI_STD_SIZE ((sizeof (struct ohci_soft_td) + OHCI_TD_ALIGN - 1) / OHCI_TD_ALIGN * OHCI_TD_ALIGN)
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#define OHCI_STD_CHUNK (PAGE_SIZE / OHCI_STD_SIZE)
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typedef struct ohci_soft_itd {
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ohci_itd_t itd;
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struct ohci_soft_itd *nextitd; /* mirrors nexttd in ITD */
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struct ohci_soft_itd *dnext; /* next in done list */
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ohci_physaddr_t physaddr;
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LIST_ENTRY(ohci_soft_itd) hnext;
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usbd_xfer_handle xfer;
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u_int16_t flags;
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#define OHCI_ITD_ACTIVE 0x0010 /* Hardware op in progress */
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#define OHCI_ITD_INTFIN 0x0020 /* Hw completion interrupt seen.*/
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#ifdef DIAGNOSTIC
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char isdone;
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#endif
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} ohci_soft_itd_t;
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#define OHCI_SITD_SIZE ((sizeof (struct ohci_soft_itd) + OHCI_ITD_ALIGN - 1) / OHCI_ITD_ALIGN * OHCI_ITD_ALIGN)
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#define OHCI_SITD_CHUNK (PAGE_SIZE / OHCI_SITD_SIZE)
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#define OHCI_NO_EDS (2*OHCI_NO_INTRS-1)
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#define OHCI_HASH_SIZE 128
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#define OHCI_SCFLG_DONEINIT 0x0001 /* ohci_init() done. */
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typedef struct ohci_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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usb_dma_t sc_hccadma;
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struct ohci_hcca *sc_hcca;
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ohci_soft_ed_t *sc_eds[OHCI_NO_EDS];
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u_int sc_bws[OHCI_NO_INTRS];
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u_int32_t sc_eintrs; /* enabled interrupts */
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ohci_soft_ed_t *sc_isoc_head;
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ohci_soft_ed_t *sc_ctrl_head;
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ohci_soft_ed_t *sc_bulk_head;
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LIST_HEAD(, ohci_soft_td) sc_hash_tds[OHCI_HASH_SIZE];
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LIST_HEAD(, ohci_soft_itd) sc_hash_itds[OHCI_HASH_SIZE];
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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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#ifdef USB_USE_SOFTINTR
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char sc_softwake;
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#endif /* USB_USE_SOFTINTR */
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ohci_soft_ed_t *sc_freeeds;
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ohci_soft_td_t *sc_freetds;
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ohci_soft_itd_t *sc_freeitds;
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SIMPLEQ_HEAD(, usbd_xfer) sc_free_xfers; /* free xfers */
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usbd_xfer_handle sc_intrxfer;
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ohci_soft_itd_t *sc_sidone;
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ohci_soft_td_t *sc_sdone;
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char sc_vendor[16];
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int sc_id_vendor;
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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_int32_t sc_control; /* Preserved during suspend/standby */
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u_int32_t sc_intre;
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u_int sc_overrun_cnt;
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struct timeval sc_overrun_ntc;
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usb_callout_t sc_tmo_rhsc;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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device_ptr_t sc_child;
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#endif
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char sc_dying;
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} ohci_softc_t;
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struct ohci_xfer {
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struct usbd_xfer xfer;
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struct usb_task abort_task;
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u_int32_t ohci_xfer_flags;
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};
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#define OHCI_XFER_ABORTING 0x01 /* xfer is aborting. */
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#define OHCI_XFER_ABORTWAIT 0x02 /* abort completion is being awaited. */
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#define OXFER(xfer) ((struct ohci_xfer *)(xfer))
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usbd_status ohci_init(ohci_softc_t *);
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void ohci_intr(void *);
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int ohci_detach(ohci_softc_t *, int);
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int ohci_activate(device_ptr_t, enum devact);
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#endif
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#define MS_TO_TICKS(ms) ((ms) * hz / 1000)
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void ohci_shutdown(void *v);
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void ohci_power(int state, void *priv);
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