250 lines
6.9 KiB
C
250 lines
6.9 KiB
C
/* $NetBSD: ohci_sbus.c,v 1.4 2003/07/15 02:54:36 lukem Exp $ */
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/*-
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* Copyright (c) 2001 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 UCHIYAMA Yasushi.
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ohci_sbus.c,v 1.4 2003/07/15 02:54:36 lukem Exp $");
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#include <sys/param.h>
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/* bus_dma */
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#include <sys/mbuf.h>
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#include <uvm/uvm_extern.h>
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#define _PLAYSTATION2_BUS_DMA_PRIVATE
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#include <machine/bus.h>
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#include <machine/autoconf.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/ohcireg.h>
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#include <dev/usb/ohcivar.h>
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#include <playstation2/ee/sifvar.h> /* DMA staff */
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#include <playstation2/ee/dmacvar.h>
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#include <playstation2/dev/sbusvar.h>
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#ifdef DEBUG
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#define STATIC
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#else
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#define STATIC static
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#endif
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#define SBUS_OHCI_REGBASE MIPS_PHYS_TO_KSEG1(0x1f801600)
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#define SBUS_OHCI_REGSIZE 0x1000
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STATIC int ohci_sbus_match(struct device *, struct cfdata *, void *);
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STATIC void ohci_sbus_attach(struct device *, struct device *, void *);
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STATIC void _ohci_sbus_map_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
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bus_size_t, int);
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STATIC int _ohci_sbus_mem_alloc(bus_dma_tag_t, bus_size_t, bus_size_t,
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bus_size_t, bus_dma_segment_t *, int, int *, int);
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STATIC void _ohci_sbus_mem_free(bus_dma_tag_t, bus_dma_segment_t *, int);
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STATIC int _ohci_sbus_mem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t,
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caddr_t *, int);
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STATIC void _ohci_sbus_mem_unmap(bus_dma_tag_t, caddr_t, size_t);
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struct playstation2_bus_dma_tag ohci_bus_dma_tag = {
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_bus_dmamap_create,
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_bus_dmamap_destroy,
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_bus_dmamap_load,
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_bus_dmamap_load_mbuf,
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_bus_dmamap_load_uio,
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_bus_dmamap_load_raw,
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_bus_dmamap_unload,
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_ohci_sbus_map_sync,
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_ohci_sbus_mem_alloc,
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_ohci_sbus_mem_free,
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_ohci_sbus_mem_map,
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_ohci_sbus_mem_unmap,
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_bus_dmamem_mmap,
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};
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struct ohci_dma_segment {
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struct iopdma_segment ds_iopdma_seg;
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LIST_ENTRY(ohci_dma_segment) ds_link;
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};
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struct ohci_sbus_softc {
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struct ohci_softc sc;
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LIST_HEAD(, ohci_dma_segment) sc_dmaseg_head;
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};
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CFATTACH_DECL(ohci_sbus, sizeof(struct ohci_sbus_softc),
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ohci_sbus_match, ohci_sbus_attach, NULL, NULL);
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int
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ohci_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return (1);
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}
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void
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ohci_sbus_attach(struct device *parent, struct device *self, void *aux)
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{
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struct ohci_sbus_softc *sc = (void *)self;
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usbd_status result;
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printf("\n");
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sc->sc.iot = bus_space_create(0, "OHCI I/O space", SBUS_OHCI_REGBASE,
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SBUS_OHCI_REGSIZE);
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sc->sc.ioh = SBUS_OHCI_REGBASE;
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ohci_bus_dma_tag._dmachip_cookie = sc;
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sc->sc.sc_bus.dmatag = &ohci_bus_dma_tag;
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/* Disable interrupts, so we don't can any spurious ones. */
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bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
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OHCI_ALL_INTRS);
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sbus_intr_establish(SBUS_IRQ_USB, ohci_intr, sc);
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/* IOP/EE DMA relay segment list */
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LIST_INIT(&sc->sc_dmaseg_head);
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result = ohci_init(&sc->sc);
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if (result != USBD_NORMAL_COMPLETION) {
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printf(": init failed. error=%d\n", result);
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return;
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}
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/* Attach usb device. */
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sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
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usbctlprint);
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}
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void
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_ohci_sbus_map_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset,
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bus_size_t len, int ops)
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{
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dmac_sync_buffer(); /* XXX over flush */
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}
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int
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_ohci_sbus_mem_alloc(bus_dma_tag_t t, bus_size_t size, bus_size_t alignment,
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bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs,
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int flags)
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{
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struct ohci_sbus_softc *sc = t->_dmachip_cookie;
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struct ohci_dma_segment *ds;
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struct iopdma_segment *iopdma_seg;
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int error;
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KDASSERT(sc);
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ds = malloc(sizeof(struct ohci_dma_segment), M_DEVBUF, M_NOWAIT);
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if (ds == NULL)
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return (1);
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/*
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* Allocate DMA Area (IOP DMA Area <-> SIF DMA <-> EE DMA Area)
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*/
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iopdma_seg = &ds->ds_iopdma_seg;
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error = iopdma_allocate_buffer(iopdma_seg, size);
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if (error) {
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free(ds, M_DEVBUF);
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return (1);
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}
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segs[0].ds_len = iopdma_seg->size;
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segs[0].ds_addr = iopdma_seg->iop_paddr;
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segs[0]._ds_vaddr = iopdma_seg->ee_vaddr;
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LIST_INSERT_HEAD(&sc->sc_dmaseg_head, ds, ds_link);
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*rsegs = 1;
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return (0);
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}
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void
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_ohci_sbus_mem_free(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs)
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{
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struct ohci_sbus_softc *sc = t->_dmachip_cookie;
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struct ohci_dma_segment *ds;
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paddr_t addr = segs[0].ds_addr;
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for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL;
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ds = LIST_NEXT(ds, ds_link)) {
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if (ds->ds_iopdma_seg.iop_paddr == addr) {
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iopdma_free_buffer(&ds->ds_iopdma_seg);
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LIST_REMOVE(ds, ds_link);
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free(ds, M_DEVBUF);
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return;
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}
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}
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panic("_dmamem_free: can't find corresponding handle.");
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/* NOTREACHED */
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}
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int
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_ohci_sbus_mem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t size,
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caddr_t *kvap, int flags)
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{
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struct ohci_sbus_softc *sc = t->_dmachip_cookie;
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struct ohci_dma_segment *ds;
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paddr_t addr = segs[0].ds_addr;
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for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL;
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ds = LIST_NEXT(ds, ds_link)) {
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if (ds->ds_iopdma_seg.iop_paddr == addr) {
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*kvap = (caddr_t)ds->ds_iopdma_seg.ee_vaddr;
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return (0);
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}
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}
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return (1);
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}
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void
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_ohci_sbus_mem_unmap(bus_dma_tag_t t, caddr_t kva, size_t size)
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{
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/* nothing to do */
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}
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