NetBSD-5.0.2/sys/arch/playstation2/dev/ohci_sbus.c
/* $NetBSD: ohci_sbus.c,v 1.9 2008/04/28 20:23:31 martin Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ohci_sbus.c,v 1.9 2008/04/28 20:23:31 martin Exp $");
#include <sys/param.h>
/* bus_dma */
#include <sys/mbuf.h>
#include <uvm/uvm_extern.h>
#define _PLAYSTATION2_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>
#include <dev/usb/ohcireg.h>
#include <dev/usb/ohcivar.h>
#include <playstation2/ee/sifvar.h> /* DMA staff */
#include <playstation2/ee/dmacvar.h>
#include <playstation2/dev/sbusvar.h>
#ifdef DEBUG
#define STATIC
#else
#define STATIC static
#endif
#define SBUS_OHCI_REGBASE MIPS_PHYS_TO_KSEG1(0x1f801600)
#define SBUS_OHCI_REGSIZE 0x1000
STATIC int ohci_sbus_match(struct device *, struct cfdata *, void *);
STATIC void ohci_sbus_attach(struct device *, struct device *, void *);
STATIC void _ohci_sbus_map_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
bus_size_t, int);
STATIC int _ohci_sbus_mem_alloc(bus_dma_tag_t, bus_size_t, bus_size_t,
bus_size_t, bus_dma_segment_t *, int, int *, int);
STATIC void _ohci_sbus_mem_free(bus_dma_tag_t, bus_dma_segment_t *, int);
STATIC int _ohci_sbus_mem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t,
void **, int);
STATIC void _ohci_sbus_mem_unmap(bus_dma_tag_t, void *, size_t);
struct playstation2_bus_dma_tag ohci_bus_dma_tag = {
_bus_dmamap_create,
_bus_dmamap_destroy,
_bus_dmamap_load,
_bus_dmamap_load_mbuf,
_bus_dmamap_load_uio,
_bus_dmamap_load_raw,
_bus_dmamap_unload,
_ohci_sbus_map_sync,
_ohci_sbus_mem_alloc,
_ohci_sbus_mem_free,
_ohci_sbus_mem_map,
_ohci_sbus_mem_unmap,
_bus_dmamem_mmap,
};
struct ohci_dma_segment {
struct iopdma_segment ds_iopdma_seg;
LIST_ENTRY(ohci_dma_segment) ds_link;
};
struct ohci_sbus_softc {
struct ohci_softc sc;
LIST_HEAD(, ohci_dma_segment) sc_dmaseg_head;
};
CFATTACH_DECL_NEW(ohci_sbus, sizeof(struct ohci_sbus_softc),
ohci_sbus_match, ohci_sbus_attach, NULL, NULL);
int
ohci_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
{
return (1);
}
void
ohci_sbus_attach(struct device *parent, struct device *self, void *aux)
{
struct ohci_sbus_softc *sc = device_private(self);
usbd_status result;
printf("\n");
sc->sc.sc_dev = self;
sc->sc.sc_bus.hci_private = sc;
sc->sc.iot = bus_space_create(0, "OHCI I/O space", SBUS_OHCI_REGBASE,
SBUS_OHCI_REGSIZE);
sc->sc.ioh = SBUS_OHCI_REGBASE;
ohci_bus_dma_tag._dmachip_cookie = sc;
sc->sc.sc_bus.dmatag = &ohci_bus_dma_tag;
/* Disable interrupts, so we don't can any spurious ones. */
bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
OHCI_ALL_INTRS);
sbus_intr_establish(SBUS_IRQ_USB, ohci_intr, sc);
/* IOP/EE DMA relay segment list */
LIST_INIT(&sc->sc_dmaseg_head);
result = ohci_init(&sc->sc);
if (result != USBD_NORMAL_COMPLETION) {
printf(": init failed. error=%d\n", result);
return;
}
/* Attach usb device. */
sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
}
void
_ohci_sbus_map_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset,
bus_size_t len, int ops)
{
dmac_sync_buffer(); /* XXX over flush */
}
int
_ohci_sbus_mem_alloc(bus_dma_tag_t t, bus_size_t size, bus_size_t alignment,
bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs,
int flags)
{
struct ohci_sbus_softc *sc = t->_dmachip_cookie;
struct ohci_dma_segment *ds;
struct iopdma_segment *iopdma_seg;
int error;
KDASSERT(sc);
ds = malloc(sizeof(struct ohci_dma_segment), M_DEVBUF, M_NOWAIT);
if (ds == NULL)
return (1);
/*
* Allocate DMA Area (IOP DMA Area <-> SIF DMA <-> EE DMA Area)
*/
iopdma_seg = &ds->ds_iopdma_seg;
error = iopdma_allocate_buffer(iopdma_seg, size);
if (error) {
free(ds, M_DEVBUF);
return (1);
}
segs[0].ds_len = iopdma_seg->size;
segs[0].ds_addr = iopdma_seg->iop_paddr;
segs[0]._ds_vaddr = iopdma_seg->ee_vaddr;
LIST_INSERT_HEAD(&sc->sc_dmaseg_head, ds, ds_link);
*rsegs = 1;
return (0);
}
void
_ohci_sbus_mem_free(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs)
{
struct ohci_sbus_softc *sc = t->_dmachip_cookie;
struct ohci_dma_segment *ds;
paddr_t addr = segs[0].ds_addr;
for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL;
ds = LIST_NEXT(ds, ds_link)) {
if (ds->ds_iopdma_seg.iop_paddr == addr) {
iopdma_free_buffer(&ds->ds_iopdma_seg);
LIST_REMOVE(ds, ds_link);
free(ds, M_DEVBUF);
return;
}
}
panic("_dmamem_free: can't find corresponding handle.");
/* NOTREACHED */
}
int
_ohci_sbus_mem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t size,
void **kvap, int flags)
{
struct ohci_sbus_softc *sc = t->_dmachip_cookie;
struct ohci_dma_segment *ds;
paddr_t addr = segs[0].ds_addr;
for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL;
ds = LIST_NEXT(ds, ds_link)) {
if (ds->ds_iopdma_seg.iop_paddr == addr) {
*kvap = (void *)ds->ds_iopdma_seg.ee_vaddr;
return (0);
}
}
return (1);
}
void
_ohci_sbus_mem_unmap(bus_dma_tag_t t, void *kva, size_t size)
{
/* nothing to do */
}