ohci_sbus.c revision 1.12
1 /* $NetBSD: ohci_sbus.c,v 1.12 2016/04/23 10:15:30 skrll 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 1.12 2016/04/23 10:15:30 skrll 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 <dev/usb/usb.h> 46 #include <dev/usb/usbdi.h> 47 #include <dev/usb/usbdivar.h> 48 #include <dev/usb/usb_mem.h> 49 50 #include <dev/usb/ohcireg.h> 51 #include <dev/usb/ohcivar.h> 52 53 #include <playstation2/ee/sifvar.h> /* DMA staff */ 54 #include <playstation2/ee/dmacvar.h> 55 #include <playstation2/dev/sbusvar.h> 56 57 #ifdef DEBUG 58 #define STATIC 59 #else 60 #define STATIC static 61 #endif 62 63 #define SBUS_OHCI_REGBASE MIPS_PHYS_TO_KSEG1(0x1f801600) 64 #define SBUS_OHCI_REGSIZE 0x1000 65 66 STATIC int ohci_sbus_match(struct device *, struct cfdata *, void *); 67 STATIC void ohci_sbus_attach(struct device *, struct device *, void *); 68 69 STATIC void _ohci_sbus_map_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 70 bus_size_t, int); 71 STATIC int _ohci_sbus_mem_alloc(bus_dma_tag_t, bus_size_t, bus_size_t, 72 bus_size_t, bus_dma_segment_t *, int, int *, int); 73 STATIC void _ohci_sbus_mem_free(bus_dma_tag_t, bus_dma_segment_t *, int); 74 STATIC int _ohci_sbus_mem_map(bus_dma_tag_t, bus_dma_segment_t *, int, size_t, 75 void **, int); 76 STATIC void _ohci_sbus_mem_unmap(bus_dma_tag_t, void *, size_t); 77 78 struct playstation2_bus_dma_tag ohci_bus_dma_tag = { 79 _bus_dmamap_create, 80 _bus_dmamap_destroy, 81 _bus_dmamap_load, 82 _bus_dmamap_load_mbuf, 83 _bus_dmamap_load_uio, 84 _bus_dmamap_load_raw, 85 _bus_dmamap_unload, 86 _ohci_sbus_map_sync, 87 _ohci_sbus_mem_alloc, 88 _ohci_sbus_mem_free, 89 _ohci_sbus_mem_map, 90 _ohci_sbus_mem_unmap, 91 _bus_dmamem_mmap, 92 }; 93 94 struct ohci_dma_segment { 95 struct iopdma_segment ds_iopdma_seg; 96 97 LIST_ENTRY(ohci_dma_segment) ds_link; 98 }; 99 100 struct ohci_sbus_softc { 101 struct ohci_softc sc; 102 103 LIST_HEAD(, ohci_dma_segment) sc_dmaseg_head; 104 }; 105 106 CFATTACH_DECL_NEW(ohci_sbus, sizeof(struct ohci_sbus_softc), 107 ohci_sbus_match, ohci_sbus_attach, NULL, NULL); 108 109 int 110 ohci_sbus_match(struct device *parent, struct cfdata *cf, void *aux) 111 { 112 113 return 1; 114 } 115 116 void 117 ohci_sbus_attach(struct device *parent, struct device *self, void *aux) 118 { 119 struct ohci_sbus_softc *sc = device_private(self); 120 121 printf("\n"); 122 123 sc->sc.sc_dev = self; 124 sc->sc.sc_bus.ub_hcpriv = sc; 125 126 sc->sc.iot = bus_space_create(0, "OHCI I/O space", SBUS_OHCI_REGBASE, 127 SBUS_OHCI_REGSIZE); 128 sc->sc.ioh = SBUS_OHCI_REGBASE; 129 130 ohci_bus_dma_tag._dmachip_cookie = sc; 131 sc->sc.sc_bus.ub_dmatag = &ohci_bus_dma_tag; 132 133 /* Disable interrupts, so we don't can any spurious ones. */ 134 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 135 OHCI_ALL_INTRS); 136 137 sbus_intr_establish(SBUS_IRQ_USB, ohci_intr, sc); 138 139 /* IOP/EE DMA relay segment list */ 140 LIST_INIT(&sc->sc_dmaseg_head); 141 142 int err = ohci_init(&sc->sc); 143 144 if (err) { 145 printf(": init failed. error=%d\n", err); 146 return; 147 } 148 149 /* Attach usb device. */ 150 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 151 } 152 153 void 154 _ohci_sbus_map_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset, 155 bus_size_t len, int ops) 156 { 157 158 dmac_sync_buffer(); /* XXX over flush */ 159 } 160 161 int 162 _ohci_sbus_mem_alloc(bus_dma_tag_t t, bus_size_t size, bus_size_t alignment, 163 bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, 164 int flags) 165 { 166 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 167 struct ohci_dma_segment *ds; 168 struct iopdma_segment *iopdma_seg; 169 int error; 170 171 KDASSERT(sc); 172 ds = malloc(sizeof(struct ohci_dma_segment), M_DEVBUF, M_NOWAIT); 173 if (ds == NULL) 174 return 1; 175 /* 176 * Allocate DMA Area (IOP DMA Area <-> SIF DMA <-> EE DMA Area) 177 */ 178 iopdma_seg = &ds->ds_iopdma_seg; 179 error = iopdma_allocate_buffer(iopdma_seg, size); 180 181 if (error) { 182 free(ds, M_DEVBUF); 183 return 1; 184 } 185 186 segs[0].ds_len = iopdma_seg->size; 187 segs[0].ds_addr = iopdma_seg->iop_paddr; 188 segs[0]._ds_vaddr = iopdma_seg->ee_vaddr; 189 190 LIST_INSERT_HEAD(&sc->sc_dmaseg_head, ds, ds_link); 191 192 *rsegs = 1; 193 194 return 0; 195 } 196 197 void 198 _ohci_sbus_mem_free(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs) 199 { 200 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 201 struct ohci_dma_segment *ds; 202 paddr_t addr = segs[0].ds_addr; 203 204 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 205 ds = LIST_NEXT(ds, ds_link)) { 206 if (ds->ds_iopdma_seg.iop_paddr == addr) { 207 iopdma_free_buffer(&ds->ds_iopdma_seg); 208 209 LIST_REMOVE(ds, ds_link); 210 free(ds, M_DEVBUF); 211 return; 212 } 213 } 214 215 panic("_dmamem_free: can't find corresponding handle."); 216 /* NOTREACHED */ 217 } 218 219 int 220 _ohci_sbus_mem_map(bus_dma_tag_t t, bus_dma_segment_t *segs, int nsegs, size_t size, 221 void **kvap, int flags) 222 { 223 struct ohci_sbus_softc *sc = t->_dmachip_cookie; 224 struct ohci_dma_segment *ds; 225 paddr_t addr = segs[0].ds_addr; 226 227 for (ds = LIST_FIRST(&sc->sc_dmaseg_head); ds != NULL; 228 ds = LIST_NEXT(ds, ds_link)) { 229 if (ds->ds_iopdma_seg.iop_paddr == addr) { 230 231 *kvap = (void *)ds->ds_iopdma_seg.ee_vaddr; 232 233 return 0; 234 } 235 } 236 237 return 1; 238 } 239 240 void 241 _ohci_sbus_mem_unmap(bus_dma_tag_t t, void *kva, size_t size) 242 { 243 /* nothing to do */ 244 } 245
Indexes created Thu Oct 02 10:09:58 GMT 2025