ohci_sbus.c revision 1.13
1 /* $NetBSD: ohci_sbus.c,v 1.13 2016/07/18 22:17:09 maya 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: ohci_sbus.c,v 1.13 2016/07/18 22:17:09 maya Exp $"); 34 35 #include <sys/param.h> 36 37 /* bus_dma */ 38 #include <sys/mbuf.h> 39 #include <uvm/uvm_extern.h> 40 41 #define _PLAYSTATION2_BUS_DMA_PRIVATE 42 #include <machine/bus.h> 43 #include <machine/autoconf.h> 44 45 #include <mips/cpuregs.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 #include <dev/usb/usbdivar.h> 50 #include <dev/usb/usb_mem.h> 51 52 #include <dev/usb/ohcireg.h> 53 #include <dev/usb/ohcivar.h> 54 55 #include <playstation2/ee/sifvar.h> /* DMA staff */ 56 #include <playstation2/ee/dmacvar.h> 57 #include <playstation2/dev/sbusvar.h> 58 59 #ifdef DEBUG 60 #define STATIC 61 #else 62 #define STATIC static 63 #endif 64 65 #define SBUS_OHCI_REGBASE MIPS_PHYS_TO_KSEG1(0x1f801600) 66 #define SBUS_OHCI_REGSIZE 0x1000 67 68 STATIC int ohci_sbus_match(struct device *, struct cfdata *, void *); 69 STATIC void ohci_sbus_attach(struct device *, struct device *, void *); 70 71 STATIC void _ohci_sbus_map_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 72 bus_size_t, int); 73 STATIC int _ohci_sbus_mem_alloc(bus_dma_tag_t, bus_size_t, bus_size_t, 74 bus_size_t, bus_dma_segment_t *, int, int *, int); 75 STATIC void _ohci_sbus_mem_free(bus_dma_tag_t, bus_dma_segment_t *, int); 76 STATIC int _ohci_sbus_mem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t, 77 void **, int); 78 STATIC void _ohci_sbus_mem_unmap(bus_dma_tag_t, void *, size_t); 79 80 struct playstation2_bus_dma_tag ohci_bus_dma_tag = { 81 _bus_dmamap_create, 82 _bus_dmamap_destroy, 83 _bus_dmamap_load, 84 _bus_dmamap_load_mbuf, 85 _bus_dmamap_load_uio, 86 _bus_dmamap_load_raw, 87 _bus_dmamap_unload, 88 _ohci_sbus_map_sync, 89 _ohci_sbus_mem_alloc, 90 _ohci_sbus_mem_free, 91 _ohci_sbus_mem_map, 92 _ohci_sbus_mem_unmap, 93 _bus_dmamem_mmap, 94 }; 95 96 struct ohci_dma_segment { 97 struct iopdma_segment ds_iopdma_seg; 98 99 LIST_ENTRY(ohci_dma_segment) ds_link; 100 }; 101 102 struct ohci_sbus_softc { 103 struct ohci_softc sc; 104 105 LIST_HEAD(, ohci_dma_segment) sc_dmaseg_head; 106 }; 107 108 CFATTACH_DECL_NEW(ohci_sbus, sizeof(struct ohci_sbus_softc), 109 ohci_sbus_match, ohci_sbus_attach, NULL, NULL); 110 111 int 112 ohci_sbus_match(struct device *parent, struct cfdata *cf, void *aux) 113 { 114 115 return 1; 116 } 117 118 void 119 ohci_sbus_attach(struct device *parent, struct device *self, void *aux) 120 { 121 struct ohci_sbus_softc *sc = device_private(self); 122 123 printf("\n"); 124 125 sc->sc.sc_dev = self; 126 sc->sc.sc_bus.ub_hcpriv = sc; 127 128 sc->sc.iot = bus_space_create(0, "OHCI I/O space", SBUS_OHCI_REGBASE, 129 SBUS_OHCI_REGSIZE); 130 sc->sc.ioh = SBUS_OHCI_REGBASE; 131 132 ohci_bus_dma_tag._dmachip_cookie = sc; 133 sc->sc.sc_bus.ub_dmatag = &ohci_bus_dma_tag; 134 135 /* Disable interrupts, so we don't can any spurious ones. */ 136 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 137 OHCI_ALL_INTRS); 138 139 sbus_intr_establish(SBUS_IRQ_USB, ohci_intr, sc); 140 141 /* IOP/EE DMA relay segment list */ 142 LIST_INIT(&sc->sc_dmaseg_head); 143 144 int err = ohci_init(&sc->sc); 145 146 if (err) { 147 printf(": init failed. error=%d\n", err); 148 return; 149 } 150 151 /* Attach usb device. */ 152 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 153 } 154 155 void 156 _ohci_sbus_map_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset, 157 bus_size_t len, int ops) 158 { 159 160 dmac_sync_buffer(); /* XXX over flush */ 161 } 162 163 int 164 _ohci_sbus_mem_alloc(bus_dma_tag_t t, bus_size_t size, bus_size_t alignment, 165 bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, 166 int flags) 167 { 168 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 169 struct ohci_dma_segment *ds; 170 struct iopdma_segment *iopdma_seg; 171 int error; 172 173 KDASSERT(sc); 174 ds = malloc(sizeof(struct ohci_dma_segment), M_DEVBUF, M_NOWAIT); 175 if (ds == NULL) 176 return 1; 177 /* 178 * Allocate DMA Area (IOP DMA Area <-> SIF DMA <-> EE DMA Area) 179 */ 180 iopdma_seg = &ds->ds_iopdma_seg; 181 error = iopdma_allocate_buffer(iopdma_seg, size); 182 183 if (error) { 184 free(ds, M_DEVBUF); 185 return 1; 186 } 187 188 segs[0].ds_len = iopdma_seg->size; 189 segs[0].ds_addr = iopdma_seg->iop_paddr; 190 segs[0]._ds_vaddr = iopdma_seg->ee_vaddr; 191 192 LIST_INSERT_HEAD(&sc->sc_dmaseg_head, ds, ds_link); 193 194 *rsegs = 1; 195 196 return 0; 197 } 198 199 void 200 _ohci_sbus_mem_free(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs) 201 { 202 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 203 struct ohci_dma_segment *ds; 204 paddr_t addr = segs[0].ds_addr; 205 206 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 207 ds = LIST_NEXT(ds, ds_link)) { 208 if (ds->ds_iopdma_seg.iop_paddr == addr) { 209 iopdma_free_buffer(&ds->ds_iopdma_seg); 210 211 LIST_REMOVE(ds, ds_link); 212 free(ds, M_DEVBUF); 213 return; 214 } 215 } 216 217 panic("_dmamem_free: can't find corresponding handle."); 218 /* NOTREACHED */ 219 } 220 221 int 222 _ohci_sbus_mem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t size, 223 void **kvap, int flags) 224 { 225 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 226 struct ohci_dma_segment *ds; 227 paddr_t addr = segs[0].ds_addr; 228 229 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 230 ds = LIST_NEXT(ds, ds_link)) { 231 if (ds->ds_iopdma_seg.iop_paddr == addr) { 232 233 *kvap = (void *)ds->ds_iopdma_seg.ee_vaddr; 234 235 return 0; 236 } 237 } 238 239 return 1; 240 } 241 242 void 243 _ohci_sbus_mem_unmap(bus_dma_tag_t t, void *kva, size_t size) 244 { 245 /* nothing to do */ 246 } 247
Indexes created Wed Oct 01 19:09:53 GMT 2025