rmixl_usbi.c revision 1.1.2.2
1 /* $NetBSD: rmixl_usbi.c,v 1.1.2.2 2010/01/10 02:48:47 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000, 2002, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Cliff Neighbors 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: rmixl_usbi.c,v 1.1.2.2 2010/01/10 02:48:47 matt Exp $"); 34 35 #include "locators.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <machine/bus.h> 42 43 #include <mips/rmi/rmixlreg.h> 44 #include <mips/rmi/rmixlvar.h> 45 #include <mips/rmi/rmixl_obiovar.h> 46 #include <mips/rmi/rmixl_usbivar.h> 47 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usbdi.h> 50 #include <dev/usb/usbdivar.h> 51 #include <dev/usb/usb_mem.h> 52 53 /* 54 * USB I/O register byte order is 55 * LITTLE ENDIAN regardless of code model 56 */ 57 #define RMIXL_USBI_GEN_VADDR(o) \ 58 (volatile uint32_t *)MIPS_PHYS_TO_KSEG1( \ 59 rmixl_configuration.rc_io_pbase + RMIXL_IO_DEV_USB_B + (o)) 60 #define RMIXL_USBI_GEN_READ(o) le32toh(*RMIXL_USBI_GEN_VADDR(o)) 61 #define RMIXL_USBI_GEN_WRITE(o,v) *RMIXL_USBI_GEN_VADDR(o) = htole32(v) 62 63 static const char *rmixl_usbi_intrnames[RMIXL_UB_INTERRUPT_MAX+1] = { 64 "int 0 (ohci0)", 65 "int 1 (ohci1)", 66 "int 2 (ehci)", 67 "int 3 (device)", 68 "int 4 (phy)", 69 "int 5 (force)" 70 }; 71 72 typedef struct rmixl_usbi_dispatch { 73 int (*func)(void *); 74 void *arg; 75 struct evcnt count; 76 } rmixl_usbi_dispatch_t; 77 78 typedef struct rmixl_usbi_softc { 79 device_t sc_dev; 80 bus_space_tag_t sc_eb_bst; 81 bus_space_tag_t sc_el_bst; 82 bus_addr_t sc_addr; 83 bus_size_t sc_size; 84 bus_dma_tag_t sc_dmat; 85 rmixl_usbi_dispatch_t sc_dispatch[RMIXL_UB_INTERRUPT_MAX + 1]; 86 } rmixl_usbi_softc_t; 87 88 89 static int rmixl_usbi_match(device_t, cfdata_t, void *); 90 static void rmixl_usbi_attach(device_t, device_t, void *); 91 static int rmixl_usbi_print(void *, const char *); 92 static int rmixl_usbi_search(device_t, cfdata_t, const int *, void *); 93 static int rmixl_usbi_intr(void *); 94 95 #ifdef RMIXL_USBI_DEBUG 96 int rmixl_usbi_rdump(void); 97 rmixl_usbi_softc_t *rmixl_usbi_sc; 98 #endif 99 100 101 CFATTACH_DECL_NEW(rmixl_usbi, sizeof (rmixl_usbi_softc_t), 102 rmixl_usbi_match, rmixl_usbi_attach, NULL, NULL); 103 104 int 105 rmixl_usbi_match(device_t parent, cfdata_t match, void *aux) 106 { 107 struct obio_attach_args *obio = aux; 108 109 if (obio->obio_addr == RMIXL_IO_DEV_USB_B) 110 return 1; 111 112 return 0; 113 } 114 115 void 116 rmixl_usbi_attach(device_t parent, device_t self, void *aux) 117 { 118 rmixl_usbi_softc_t *sc = device_private(self); 119 struct obio_attach_args *obio = aux; 120 void *ih; 121 122 #ifdef RMIXL_USBI_DEBUG 123 rmixl_usbi_sc = sc; 124 #endif 125 sc->sc_dev = self; 126 sc->sc_eb_bst = obio->obio_eb_bst; 127 sc->sc_el_bst = obio->obio_el_bst; 128 sc->sc_addr = obio->obio_addr; 129 sc->sc_size = obio->obio_size; 130 sc->sc_dmat = obio->obio_32bit_dmat; 131 132 for (int intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 133 evcnt_attach_dynamic(&sc->sc_dispatch[intr].count, 134 EVCNT_TYPE_INTR, NULL, "rmixl_usbi", 135 rmixl_usbi_intrnames[intr]); 136 } 137 138 /* Disable all usb interface interrupts */ 139 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, 0); 140 141 /* establish interrupt */ 142 ih = rmixl_intr_establish(obio->obio_intr, IPL_USB, 143 RMIXL_INTR_LEVEL, RMIXL_INTR_HIGH, rmixl_usbi_intr, sc); 144 if (ih == NULL) 145 panic("%s: couldn't establish interrupt", device_xname(self)); 146 147 aprint_normal("\n"); 148 149 /* attach any children */ 150 config_search_ia(rmixl_usbi_search, self, "rmixl_usbi", NULL); 151 } 152 153 static int 154 rmixl_usbi_print(void *aux, const char *pnp) 155 { 156 struct rmixl_usbi_attach_args *usbi = aux; 157 158 if (usbi->usbi_addr != RMIXL_USBICF_ADDR_DEFAULT) { 159 aprint_normal(" addr %#"PRIxBUSADDR, usbi->usbi_addr); 160 if (usbi->usbi_size != RMIXL_USBICF_SIZE_DEFAULT) 161 aprint_normal("-%#"PRIxBUSADDR, 162 usbi->usbi_addr + (usbi->usbi_size - 1)); 163 } 164 if (usbi->usbi_intr != RMIXL_USBICF_INTR_DEFAULT) 165 aprint_normal(" intr %d", usbi->usbi_intr); 166 167 aprint_normal("\n"); 168 169 return (UNCONF); 170 } 171 172 static int 173 rmixl_usbi_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 174 { 175 struct rmixl_usbi_softc *sc = device_private(parent); 176 struct rmixl_usbi_attach_args usbi; 177 178 usbi.usbi_eb_bst = sc->sc_eb_bst; 179 usbi.usbi_el_bst = sc->sc_el_bst; 180 usbi.usbi_addr = cf->cf_loc[RMIXL_USBICF_ADDR]; 181 usbi.usbi_size = cf->cf_loc[RMIXL_USBICF_SIZE]; 182 usbi.usbi_intr = cf->cf_loc[RMIXL_USBICF_INTR]; 183 usbi.usbi_dmat = sc->sc_dmat; 184 185 if (config_match(parent, cf, &usbi) > 0) 186 config_attach(parent, cf, &usbi, rmixl_usbi_print); 187 188 return 0; 189 } 190 191 192 void 193 rmixl_usbi_intr_disestablish(void *uh, void *ih) 194 { 195 rmixl_usbi_softc_t *sc = uh; 196 u_int intr; 197 198 for (intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 199 if (ih == &sc->sc_dispatch[intr]) { 200 uint32_t r; 201 202 /* disable this interrupt in the usb interface */ 203 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 204 r &= 1 << intr; 205 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, r); 206 207 /* free the dispatch slot */ 208 sc->sc_dispatch[intr].func = NULL; 209 sc->sc_dispatch[intr].arg = NULL; 210 211 break; 212 } 213 } 214 } 215 216 void * 217 rmixl_usbi_intr_establish(void *uh, u_int intr, int (func)(void *), void *arg) 218 { 219 rmixl_usbi_softc_t *sc = uh; 220 uint32_t r; 221 void *ih = NULL; 222 int s; 223 224 s = splusb(); 225 226 if (intr > RMIXL_UB_INTERRUPT_MAX) { 227 aprint_error_dev(sc->sc_dev, "invalid intr %d\n", intr); 228 goto out; 229 } 230 231 if (sc->sc_dispatch[intr].func != NULL) { 232 aprint_error_dev(sc->sc_dev, "intr %dq busy\n", intr); 233 goto out; 234 } 235 236 sc->sc_dispatch[intr].func = func; 237 sc->sc_dispatch[intr].arg = arg; 238 ih = &sc->sc_dispatch[intr]; 239 240 /* enable this interrupt in the usb interface */ 241 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 242 r |= 1 << intr; 243 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, r); 244 245 out: 246 splx(s); 247 return ih; 248 } 249 250 static int 251 rmixl_usbi_intr(void *arg) 252 { 253 rmixl_usbi_softc_t *sc = arg; 254 uint32_t r; 255 int intr; 256 int rv = 0; 257 258 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_STATUS); 259 if (r != 0) { 260 for (intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 261 uint32_t bit = 1 << intr; 262 if ((r & bit) != 0) { 263 int (*f)(void *) = sc->sc_dispatch[intr].func; 264 void *a = sc->sc_dispatch[intr].arg; 265 if (f != NULL) { 266 (void)(*f)(a); 267 sc->sc_dispatch[intr].count.ev_count++; 268 rv = 1; 269 } 270 } 271 } 272 } 273 274 return rv; 275 } 276 277 #ifdef RMIXL_USBI_DEBUG 278 int 279 rmixl_usbi_rdump(void) 280 { 281 rmixl_usbi_softc_t *sc = rmixl_usbi_sc; 282 uint32_t r; 283 284 if (sc == NULL) 285 return -1; 286 287 printf("\n%s:\n", __func__); 288 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL1); 289 printf(" USB_GEN_CTRL1 %#x\n", r); 290 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL2); 291 printf(" USB_GEN_CTRL2 %#x\n", r); 292 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL3); 293 printf(" USB_GEN_CTRL3 %#x\n", r); 294 r = RMIXL_USBI_GEN_READ(RMIXL_USB_IOBM_TIMER); 295 printf(" USB_IOBM_TIMER %#x\n", r); 296 r = RMIXL_USBI_GEN_READ(RMIXL_USB_VBUS_TIMER); 297 printf(" USB_VBUS_TIMER %#x\n", r); 298 r = RMIXL_USBI_GEN_READ(RMIXL_USB_BYTESWAP_EN); 299 printf(" USB_BYTESWAP_EN %#x\n", r); 300 r = RMIXL_USBI_GEN_READ(RMIXL_USB_COHERENT_MEM_BASE); 301 printf(" USB_COHERENT_MEM_BASE %#x\n", r); 302 r = RMIXL_USBI_GEN_READ(RMIXL_USB_COHERENT_MEM_LIMIT); 303 printf(" USB_COHERENT_MEM_LIMIT %#x\n", r); 304 r = RMIXL_USBI_GEN_READ(RMIXL_USB_L2ALLOC_MEM_BASE); 305 printf(" USB_L2ALLOC_MEM_BASE %#x\n", r); 306 r = RMIXL_USBI_GEN_READ(RMIXL_USB_L2ALLOC_MEM_LIMIT); 307 printf(" USB_L2ALLOC_MEM_LIMIT %#x\n", r); 308 r = RMIXL_USBI_GEN_READ(RMIXL_USB_READEX_MEM_BASE); 309 printf(" USB_READEX_MEM_BASE %#x\n", r); 310 r = RMIXL_USBI_GEN_READ(RMIXL_USB_READEX_MEM_LIMIT); 311 printf(" USB_READEX_MEM_LIMIT %#x\n", r); 312 r = RMIXL_USBI_GEN_READ(RMIXL_USB_PHY_STATUS); 313 printf(" USB_PHY_STATUS %#x\n", r); 314 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_STATUS); 315 printf(" USB_INTERRUPT_STATUS %#x\n", r); 316 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 317 printf(" USB_INTERRUPT_ENABLE %#x\n", r); 318 319 return 0; 320 } 321 #endif 322
Indexes created Sun Oct 19 02:09:48 GMT 2025