rmixl_usbi.c revision 1.1.2.5
1 /* $NetBSD: rmixl_usbi.c,v 1.1.2.5 2010/04/12 22:42:07 cliff 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 1.1.2.5 2010/04/12 22:42:07 cliff 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_intr.h> 46 #include <mips/rmi/rmixl_obiovar.h> 47 #include <mips/rmi/rmixl_usbivar.h> 48 49 #include <dev/usb/usb.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdivar.h> 52 #include <dev/usb/usb_mem.h> 53 54 /* 55 * USB I/O register byte order is 56 * LITTLE ENDIAN regardless of code model 57 */ 58 #define RMIXL_USBI_GEN_VADDR(o) \ 59 (volatile uint32_t *)MIPS_PHYS_TO_KSEG1( \ 60 rmixl_configuration.rc_io_pbase + RMIXL_IO_DEV_USB_B + (o)) 61 #define RMIXL_USBI_GEN_READ(o) le32toh(*RMIXL_USBI_GEN_VADDR(o)) 62 #define RMIXL_USBI_GEN_WRITE(o,v) *RMIXL_USBI_GEN_VADDR(o) = htole32(v) 63 64 static const char *rmixl_usbi_intrnames[RMIXL_UB_INTERRUPT_MAX+1] = { 65 "int 0 (ohci0)", 66 "int 1 (ohci1)", 67 "int 2 (ehci)", 68 "int 3 (device)", 69 "int 4 (phy)", 70 "int 5 (force)" 71 }; 72 73 typedef struct rmixl_usbi_dispatch { 74 int (*func)(void *); 75 void *arg; 76 struct evcnt count; 77 } rmixl_usbi_dispatch_t; 78 79 typedef struct rmixl_usbi_softc { 80 device_t sc_dev; 81 bus_space_tag_t sc_eb_bst; 82 bus_space_tag_t sc_el_bst; 83 bus_addr_t sc_addr; 84 bus_size_t sc_size; 85 bus_dma_tag_t sc_dmat; 86 rmixl_usbi_dispatch_t sc_dispatch[RMIXL_UB_INTERRUPT_MAX + 1]; 87 } rmixl_usbi_softc_t; 88 89 90 static int rmixl_usbi_match(device_t, cfdata_t, void *); 91 static void rmixl_usbi_attach(device_t, device_t, void *); 92 static int rmixl_usbi_print(void *, const char *); 93 static int rmixl_usbi_search(device_t, cfdata_t, const int *, void *); 94 static int rmixl_usbi_intr(void *); 95 96 #ifdef RMIXL_USBI_DEBUG 97 int rmixl_usbi_rdump(void); 98 rmixl_usbi_softc_t *rmixl_usbi_sc; 99 #endif 100 101 102 CFATTACH_DECL_NEW(rmixl_usbi, sizeof (rmixl_usbi_softc_t), 103 rmixl_usbi_match, rmixl_usbi_attach, NULL, NULL); 104 105 int 106 rmixl_usbi_match(device_t parent, cfdata_t match, void *aux) 107 { 108 struct obio_attach_args *obio = aux; 109 110 if (obio->obio_addr == RMIXL_IO_DEV_USB_B) 111 return rmixl_probe_4((volatile uint32_t *)RMIXL_IOREG_VADDR(obio->obio_addr)); 112 113 return 0; 114 } 115 116 void 117 rmixl_usbi_attach(device_t parent, device_t self, void *aux) 118 { 119 rmixl_usbi_softc_t *sc = device_private(self); 120 struct obio_attach_args *obio = aux; 121 uint32_t r; 122 void *ih; 123 124 #ifdef RMIXL_USBI_DEBUG 125 rmixl_usbi_sc = sc; 126 #endif 127 sc->sc_dev = self; 128 sc->sc_eb_bst = obio->obio_eb_bst; 129 sc->sc_el_bst = obio->obio_el_bst; 130 sc->sc_addr = obio->obio_addr; 131 sc->sc_size = obio->obio_size; 132 sc->sc_dmat = obio->obio_32bit_dmat; 133 134 aprint_normal("\n%s", device_xname(self)); 135 136 /* 137 * fail attach if USB interface is disabled GPIO LOW_PWR_DIS reg 138 */ 139 r = RMIXL_IOREG_READ(RMIXL_IO_DEV_GPIO + RMIXL_GPIO_LOW_PWR_DIS); 140 if ((r & RMIXL_GPIO_LOW_PWR_DIS_USB) != 0) { 141 aprint_error(": USB_DIS set in LOW_PWR_DIS, abort attach\n"); 142 return; 143 } 144 145 /* 146 * fail attach if USB interface BIST failed 147 */ 148 r = RMIXL_IOREG_READ(RMIXL_IO_DEV_GPIO + RMIXL_GPIO_BIST_EACH_STS); 149 aprint_normal(": BIST status="); 150 if ((r & __BIT(18)) == 0) { /* XXX USB_BIST */ 151 aprint_normal("FAIL\n"); 152 return; 153 } 154 aprint_normal("OK"); 155 156 /* 157 * set BYTESWAP_EN register nonzero when software is little endian 158 */ 159 #if BYTE_ORDER == BIG_ENDIAN 160 r = 0; 161 #else 162 r = 1; 163 #endif 164 RMIXL_USBI_GEN_WRITE(RMIXL_USB_BYTESWAP_EN, r); 165 aprint_normal(" byteswap enable=%d", r); 166 for (int intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 167 evcnt_attach_dynamic(&sc->sc_dispatch[intr].count, 168 EVCNT_TYPE_INTR, NULL, "rmixl_usbi", 169 rmixl_usbi_intrnames[intr]); 170 } 171 172 /* Disable all usb interface interrupts */ 173 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, 0); 174 175 /* establish interrupt */ 176 ih = rmixl_intr_establish(obio->obio_intr, obio->obio_tmsk, 177 IPL_USB, RMIXL_TRIG_LEVEL, RMIXL_POLR_HIGH, 178 rmixl_usbi_intr, sc, false); 179 if (ih == NULL) 180 panic("%s: couldn't establish interrupt", device_xname(self)); 181 182 aprint_normal("\n"); 183 184 /* attach any children */ 185 config_search_ia(rmixl_usbi_search, self, "rmixl_usbi", NULL); 186 } 187 188 static int 189 rmixl_usbi_print(void *aux, const char *pnp) 190 { 191 struct rmixl_usbi_attach_args *usbi = aux; 192 193 if (usbi->usbi_addr != RMIXL_USBICF_ADDR_DEFAULT) { 194 aprint_normal(" addr %#"PRIxBUSADDR, usbi->usbi_addr); 195 if (usbi->usbi_size != RMIXL_USBICF_SIZE_DEFAULT) 196 aprint_normal("-%#"PRIxBUSADDR, 197 usbi->usbi_addr + (usbi->usbi_size - 1)); 198 } 199 if (usbi->usbi_intr != RMIXL_USBICF_INTR_DEFAULT) 200 aprint_normal(" intr %d", usbi->usbi_intr); 201 202 aprint_normal("\n"); 203 204 return (UNCONF); 205 } 206 207 static int 208 rmixl_usbi_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 209 { 210 struct rmixl_usbi_softc *sc = device_private(parent); 211 struct rmixl_usbi_attach_args usbi; 212 213 usbi.usbi_eb_bst = sc->sc_eb_bst; 214 usbi.usbi_el_bst = sc->sc_el_bst; 215 usbi.usbi_addr = cf->cf_loc[RMIXL_USBICF_ADDR]; 216 usbi.usbi_size = cf->cf_loc[RMIXL_USBICF_SIZE]; 217 usbi.usbi_intr = cf->cf_loc[RMIXL_USBICF_INTR]; 218 usbi.usbi_dmat = sc->sc_dmat; 219 220 if (config_match(parent, cf, &usbi) > 0) 221 config_attach(parent, cf, &usbi, rmixl_usbi_print); 222 223 return 0; 224 } 225 226 227 void 228 rmixl_usbi_intr_disestablish(void *uh, void *ih) 229 { 230 rmixl_usbi_softc_t *sc = uh; 231 u_int intr; 232 233 for (intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 234 if (ih == &sc->sc_dispatch[intr]) { 235 uint32_t r; 236 237 /* disable this interrupt in the usb interface */ 238 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 239 r &= 1 << intr; 240 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, r); 241 242 /* free the dispatch slot */ 243 sc->sc_dispatch[intr].func = NULL; 244 sc->sc_dispatch[intr].arg = NULL; 245 246 break; 247 } 248 } 249 } 250 251 void * 252 rmixl_usbi_intr_establish(void *uh, u_int intr, int (func)(void *), void *arg) 253 { 254 rmixl_usbi_softc_t *sc = uh; 255 uint32_t r; 256 void *ih = NULL; 257 int s; 258 259 s = splusb(); 260 261 if (intr > RMIXL_UB_INTERRUPT_MAX) { 262 aprint_error_dev(sc->sc_dev, "invalid intr %d\n", intr); 263 goto out; 264 } 265 266 if (sc->sc_dispatch[intr].func != NULL) { 267 aprint_error_dev(sc->sc_dev, "intr %dq busy\n", intr); 268 goto out; 269 } 270 271 sc->sc_dispatch[intr].func = func; 272 sc->sc_dispatch[intr].arg = arg; 273 ih = &sc->sc_dispatch[intr]; 274 275 /* enable this interrupt in the usb interface */ 276 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 277 r |= 1 << intr; 278 RMIXL_USBI_GEN_WRITE(RMIXL_USB_INTERRUPT_ENABLE, r); 279 280 out: 281 splx(s); 282 return ih; 283 } 284 285 static int 286 rmixl_usbi_intr(void *arg) 287 { 288 rmixl_usbi_softc_t *sc = arg; 289 uint32_t r; 290 int intr; 291 int rv = 0; 292 293 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_STATUS); 294 if (r != 0) { 295 for (intr=0; intr <= RMIXL_UB_INTERRUPT_MAX; intr++) { 296 uint32_t bit = 1 << intr; 297 if ((r & bit) != 0) { 298 int (*f)(void *) = sc->sc_dispatch[intr].func; 299 void *a = sc->sc_dispatch[intr].arg; 300 if (f != NULL) { 301 (void)(*f)(a); 302 sc->sc_dispatch[intr].count.ev_count++; 303 rv = 1; 304 } 305 } 306 } 307 } 308 309 return rv; 310 } 311 312 #ifdef RMIXL_USBI_DEBUG 313 int 314 rmixl_usbi_rdump(void) 315 { 316 rmixl_usbi_softc_t *sc = rmixl_usbi_sc; 317 uint32_t r; 318 319 if (sc == NULL) 320 return -1; 321 322 printf("\n%s:\n", __func__); 323 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL1); 324 printf(" USB_GEN_CTRL1 %#x\n", r); 325 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL2); 326 printf(" USB_GEN_CTRL2 %#x\n", r); 327 r = RMIXL_USBI_GEN_READ(RMIXL_USB_GEN_CTRL3); 328 printf(" USB_GEN_CTRL3 %#x\n", r); 329 r = RMIXL_USBI_GEN_READ(RMIXL_USB_IOBM_TIMER); 330 printf(" USB_IOBM_TIMER %#x\n", r); 331 r = RMIXL_USBI_GEN_READ(RMIXL_USB_VBUS_TIMER); 332 printf(" USB_VBUS_TIMER %#x\n", r); 333 r = RMIXL_USBI_GEN_READ(RMIXL_USB_BYTESWAP_EN); 334 printf(" USB_BYTESWAP_EN %#x\n", r); 335 r = RMIXL_USBI_GEN_READ(RMIXL_USB_COHERENT_MEM_BASE); 336 printf(" USB_COHERENT_MEM_BASE %#x\n", r); 337 r = RMIXL_USBI_GEN_READ(RMIXL_USB_COHERENT_MEM_LIMIT); 338 printf(" USB_COHERENT_MEM_LIMIT %#x\n", r); 339 r = RMIXL_USBI_GEN_READ(RMIXL_USB_L2ALLOC_MEM_BASE); 340 printf(" USB_L2ALLOC_MEM_BASE %#x\n", r); 341 r = RMIXL_USBI_GEN_READ(RMIXL_USB_L2ALLOC_MEM_LIMIT); 342 printf(" USB_L2ALLOC_MEM_LIMIT %#x\n", r); 343 r = RMIXL_USBI_GEN_READ(RMIXL_USB_READEX_MEM_BASE); 344 printf(" USB_READEX_MEM_BASE %#x\n", r); 345 r = RMIXL_USBI_GEN_READ(RMIXL_USB_READEX_MEM_LIMIT); 346 printf(" USB_READEX_MEM_LIMIT %#x\n", r); 347 r = RMIXL_USBI_GEN_READ(RMIXL_USB_PHY_STATUS); 348 printf(" USB_PHY_STATUS %#x\n", r); 349 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_STATUS); 350 printf(" USB_INTERRUPT_STATUS %#x\n", r); 351 r = RMIXL_USBI_GEN_READ(RMIXL_USB_INTERRUPT_ENABLE); 352 printf(" USB_INTERRUPT_ENABLE %#x\n", r); 353 354 return 0; 355 } 356 #endif 357
Indexes created Wed Oct 22 13:09:56 GMT 2025