ohci_sbus.c revision 1.7
1 /* $NetBSD: ohci_sbus.c,v 1.7 2007/03/04 06:00:30 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: ohci_sbus.c,v 1.7 2007/03/04 06:00:30 christos Exp $"); 41 42 #include <sys/param.h> 43 44 /* bus_dma */ 45 #include <sys/mbuf.h> 46 #include <uvm/uvm_extern.h> 47 48 #define _PLAYSTATION2_BUS_DMA_PRIVATE 49 #include <machine/bus.h> 50 #include <machine/autoconf.h> 51 52 #include <dev/usb/usb.h> 53 #include <dev/usb/usbdi.h> 54 #include <dev/usb/usbdivar.h> 55 #include <dev/usb/usb_mem.h> 56 57 #include <dev/usb/ohcireg.h> 58 #include <dev/usb/ohcivar.h> 59 60 #include <playstation2/ee/sifvar.h> /* DMA staff */ 61 #include <playstation2/ee/dmacvar.h> 62 #include <playstation2/dev/sbusvar.h> 63 64 #ifdef DEBUG 65 #define STATIC 66 #else 67 #define STATIC static 68 #endif 69 70 #define SBUS_OHCI_REGBASE MIPS_PHYS_TO_KSEG1(0x1f801600) 71 #define SBUS_OHCI_REGSIZE 0x1000 72 73 STATIC int ohci_sbus_match(struct device *, struct cfdata *, void *); 74 STATIC void ohci_sbus_attach(struct device *, struct device *, void *); 75 76 STATIC void _ohci_sbus_map_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 77 bus_size_t, int); 78 STATIC int _ohci_sbus_mem_alloc(bus_dma_tag_t, bus_size_t, bus_size_t, 79 bus_size_t, bus_dma_segment_t *, int, int *, int); 80 STATIC void _ohci_sbus_mem_free(bus_dma_tag_t, bus_dma_segment_t *, int); 81 STATIC int _ohci_sbus_mem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t, 82 void **, int); 83 STATIC void _ohci_sbus_mem_unmap(bus_dma_tag_t, void *, size_t); 84 85 struct playstation2_bus_dma_tag ohci_bus_dma_tag = { 86 _bus_dmamap_create, 87 _bus_dmamap_destroy, 88 _bus_dmamap_load, 89 _bus_dmamap_load_mbuf, 90 _bus_dmamap_load_uio, 91 _bus_dmamap_load_raw, 92 _bus_dmamap_unload, 93 _ohci_sbus_map_sync, 94 _ohci_sbus_mem_alloc, 95 _ohci_sbus_mem_free, 96 _ohci_sbus_mem_map, 97 _ohci_sbus_mem_unmap, 98 _bus_dmamem_mmap, 99 }; 100 101 struct ohci_dma_segment { 102 struct iopdma_segment ds_iopdma_seg; 103 104 LIST_ENTRY(ohci_dma_segment) ds_link; 105 }; 106 107 struct ohci_sbus_softc { 108 struct ohci_softc sc; 109 110 LIST_HEAD(, ohci_dma_segment) sc_dmaseg_head; 111 }; 112 113 CFATTACH_DECL(ohci_sbus, sizeof(struct ohci_sbus_softc), 114 ohci_sbus_match, ohci_sbus_attach, NULL, NULL); 115 116 int 117 ohci_sbus_match(struct device *parent, struct cfdata *cf, void *aux) 118 { 119 120 return (1); 121 } 122 123 void 124 ohci_sbus_attach(struct device *parent, struct device *self, void *aux) 125 { 126 struct ohci_sbus_softc *sc = (void *)self; 127 usbd_status result; 128 129 printf("\n"); 130 131 sc->sc.iot = bus_space_create(0, "OHCI I/O space", SBUS_OHCI_REGBASE, 132 SBUS_OHCI_REGSIZE); 133 sc->sc.ioh = SBUS_OHCI_REGBASE; 134 135 ohci_bus_dma_tag._dmachip_cookie = sc; 136 sc->sc.sc_bus.dmatag = &ohci_bus_dma_tag; 137 138 /* Disable interrupts, so we don't can any spurious ones. */ 139 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 140 OHCI_ALL_INTRS); 141 142 sbus_intr_establish(SBUS_IRQ_USB, ohci_intr, sc); 143 144 /* IOP/EE DMA relay segment list */ 145 LIST_INIT(&sc->sc_dmaseg_head); 146 147 result = ohci_init(&sc->sc); 148 149 if (result != USBD_NORMAL_COMPLETION) { 150 printf(": init failed. error=%d\n", result); 151 return; 152 } 153 154 /* Attach usb device. */ 155 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 156 usbctlprint); 157 } 158 159 void 160 _ohci_sbus_map_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset, 161 bus_size_t len, int ops) 162 { 163 164 dmac_sync_buffer(); /* XXX over flush */ 165 } 166 167 int 168 _ohci_sbus_mem_alloc(bus_dma_tag_t t, bus_size_t size, bus_size_t alignment, 169 bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, 170 int flags) 171 { 172 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 173 struct ohci_dma_segment *ds; 174 struct iopdma_segment *iopdma_seg; 175 int error; 176 177 KDASSERT(sc); 178 ds = malloc(sizeof(struct ohci_dma_segment), M_DEVBUF, M_NOWAIT); 179 if (ds == NULL) 180 return (1); 181 /* 182 * Allocate DMA Area (IOP DMA Area <-> SIF DMA <-> EE DMA Area) 183 */ 184 iopdma_seg = &ds->ds_iopdma_seg; 185 error = iopdma_allocate_buffer(iopdma_seg, size); 186 187 if (error) { 188 free(ds, M_DEVBUF); 189 return (1); 190 } 191 192 segs[0].ds_len = iopdma_seg->size; 193 segs[0].ds_addr = iopdma_seg->iop_paddr; 194 segs[0]._ds_vaddr = iopdma_seg->ee_vaddr; 195 196 LIST_INSERT_HEAD(&sc->sc_dmaseg_head, ds, ds_link); 197 198 *rsegs = 1; 199 200 return (0); 201 } 202 203 void 204 _ohci_sbus_mem_free(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs) 205 { 206 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 207 struct ohci_dma_segment *ds; 208 paddr_t addr = segs[0].ds_addr; 209 210 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 211 ds = LIST_NEXT(ds, ds_link)) { 212 if (ds->ds_iopdma_seg.iop_paddr == addr) { 213 iopdma_free_buffer(&ds->ds_iopdma_seg); 214 215 LIST_REMOVE(ds, ds_link); 216 free(ds, M_DEVBUF); 217 return; 218 } 219 } 220 221 panic("_dmamem_free: can't find corresponding handle."); 222 /* NOTREACHED */ 223 } 224 225 int 226 _ohci_sbus_mem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t size, 227 void **kvap, int flags) 228 { 229 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 230 struct ohci_dma_segment *ds; 231 paddr_t addr = segs[0].ds_addr; 232 233 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 234 ds = LIST_NEXT(ds, ds_link)) { 235 if (ds->ds_iopdma_seg.iop_paddr == addr) { 236 237 *kvap = (void *)ds->ds_iopdma_seg.ee_vaddr; 238 239 return (0); 240 } 241 } 242 243 return (1); 244 } 245 246 void 247 _ohci_sbus_mem_unmap(bus_dma_tag_t t, void *kva, size_t size) 248 { 249 /* nothing to do */ 250 } 251
Indexes created Wed Oct 01 19:09:53 GMT 2025