vrc4173bcu.c revision 1.2
1 /* $NetBSD: vrc4173bcu.c,v 1.2 2001/10/21 09:38:10 takemura Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Enami Tsugutomo. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/device.h> 32 33 #include <machine/bus.h> 34 35 #include <dev/pci/pcivar.h> 36 #include <dev/pci/pcidevs.h> 37 38 #include <machine/platid.h> 39 #include <machine/platid_mask.h> 40 41 #include <hpcmips/vr/vrc4173bcuvar.h> 42 #include <hpcmips/vr/vrc4173icureg.h> 43 #include <hpcmips/vr/vrc4173cmureg.h> 44 45 #define VRC4173BCU_BADR 0x10 46 #ifdef DEBUG 47 #define DPRINTF(args) printf args 48 #else 49 #define DPRINTF(args) 50 #endif 51 52 #define USE_WINCE_CLKMASK (~0) 53 54 static int vrc4173bcu_match(struct device *, struct cfdata *, void *); 55 static void vrc4173bcu_attach(struct device *, struct device *, void *); 56 static int vrc4173bcu_print(void *, const char *); 57 58 int vrcintr_port = 1; /* GPIO port to which VRCINT is 59 connected to. XXX. */ 60 61 struct cfattach vrc4173bcu_ca = { 62 sizeof(struct vrc4173bcu_softc), vrc4173bcu_match, vrc4173bcu_attach, 63 }; 64 65 static struct vrc4173bcu_platdep { 66 platid_t *platid; 67 u_int32_t clkmask; 68 } platdep_table[] = { 69 { 70 &platid_wild, 71 USE_WINCE_CLKMASK, /* XXX */ 72 }, 73 }; 74 75 int 76 vrc4173bcu_match(struct device *parent, struct cfdata *match, void *aux) 77 { 78 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 79 80 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NEC && 81 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_NEC_VRC4173_BCU) 82 return (1); 83 84 return (0); 85 } 86 87 void 88 vrc4173bcu_attach(struct device *parent, struct device *self, void *aux) 89 { 90 struct vrc4173bcu_softc *sc = (struct vrc4173bcu_softc *)self; 91 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 92 pci_chipset_tag_t pc = pa->pa_pc; 93 pcitag_t tag = pa->pa_tag; 94 pcireg_t csr; 95 char devinfo[256]; 96 int i; 97 u_int16_t reg; 98 struct vrc4173bcu_platdep *platdep_info; 99 #ifdef DEBUG 100 char buf[80]; 101 #endif 102 103 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 104 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 105 106 #if 0 107 printf("%s: ", sc->sc_dev.dv_xname); 108 pci_conf_print(pa->pa_pc, pa->pa_tag, NULL); 109 #endif 110 111 csr = pci_conf_read(pc, tag, VRC4173BCU_BADR); 112 DPRINTF(("%s: base addr = 0x%08x\n", sc->sc_dev.dv_xname, csr)); 113 114 platdep_info = platid_search(&platid, platdep_table, 115 sizeof(platdep_table)/sizeof(*platdep_table), 116 sizeof(*platdep_table)); 117 118 /* Map I/O registers */ 119 if (pci_mapreg_map(pa, VRC4173BCU_BADR, PCI_MAPREG_TYPE_IO, 0, 120 &sc->sc_iot, &sc->sc_ioh, NULL, &sc->sc_size)) { 121 printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); 122 return; 123 } 124 125 sc->sc_pc = pc; 126 127 /* Enable the device. */ 128 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 129 DPRINTF(("%s: csr = 0x%08x", sc->sc_dev.dv_xname, csr)); 130 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 131 csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); 132 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 133 DPRINTF((" -> 0x%08x\n", csr)); 134 135 csr = pci_conf_read(pc, tag, VRC4173BCU_BADR); 136 DPRINTF(("%s: base addr = %x@0x%08x\n", sc->sc_dev.dv_xname, 137 (int)sc->sc_size, csr)); 138 DPRINTF(("%s: iot = 0x%08x, ioh = 0x%08x\n", sc->sc_dev.dv_xname, 139 (int)sc->sc_iot, sc->sc_ioh)); 140 141 /* 142 * Map I/O space for ICU. 143 */ 144 if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 145 VRC4173ICU_IOBASE, VRC4173ICU_IOSIZE, &sc->sc_icuh)) { 146 printf(": can't map ICU i/o space\n"); 147 return; 148 } 149 150 /* 151 * Map I/O space for CMU. 152 */ 153 if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, 154 VRC4173CMU_IOBASE, VRC4173CMU_IOSIZE, &sc->sc_cmuh)) { 155 printf(": can't map CMU i/o space\n"); 156 return; 157 } 158 159 /* assert all reset bits */ 160 bus_space_write_2(sc->sc_iot, sc->sc_cmuh, VRC4173CMU_SRST, 161 VRC4173CMU_SRST_AC97 | VRC4173CMU_SRST_USB | 162 VRC4173CMU_SRST_CARD2 | VRC4173CMU_SRST_CARD1); 163 164 /* set clock mask */ 165 if (platdep_info->clkmask == USE_WINCE_CLKMASK) { 166 reg = bus_space_read_2(sc->sc_iot, sc->sc_cmuh, 167 VRC4173CMU_SRST); 168 printf("%s: default clock mask is %04x\n", 169 sc->sc_dev.dv_xname, reg); 170 } else { 171 bus_space_write_2(sc->sc_iot, sc->sc_cmuh, 172 VRC4173CMU_CLKMSK, platdep_info->clkmask); 173 } 174 175 /* clear reset bit */ 176 bus_space_write_2(sc->sc_iot, sc->sc_cmuh, VRC4173CMU_SRST, 0); 177 178 #ifdef DEBUG 179 reg = bus_space_read_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_SYSINT1); 180 bitmask_snprintf(reg, 181 "\20\1USB\2PCMCIA2\3PCMCIA1\4PS2CH2\5PS2CH1\6PIU\7AIU\10KIU" 182 "\11GIU\12AC97\13AC97-1\14B11\15B12\16DOZEPIU\17B14\20B15", 183 buf, sizeof(buf)); 184 printf("%s: SYSINT1 = 0x%s\n", sc->sc_dev.dv_xname, buf); 185 186 reg = bus_space_read_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_MKIUINT); 187 bitmask_snprintf(reg, 188 "\20\1SCANINT\2KDATRDY\3KDATLOST\4B3\5B4\6B5\7B6\10B7" 189 "\11B8\12B9\13B10\14B11\15B12\16B13\17B14\20B15", 190 buf, sizeof(buf)); 191 printf("%s: MKIUINT = 0x%s\n", sc->sc_dev.dv_xname, buf); 192 193 reg = bus_space_read_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_MSYSINT1); 194 bitmask_snprintf(reg, 195 "\20\1USB\2PCMCIA2\3PCMCIA1\4PS2CH2\5PS2CH1\6PIU\7AIU\10KIU" 196 "\11GIU\12AC97\13AC97-1\14B11\15B12\16DOZEPIU\17B14\20B15", 197 buf, sizeof(buf)); 198 printf("%s: MSYSINT1 = 0x%s\n", sc->sc_dev.dv_xname, buf); 199 200 #if 1 201 reg = VRC4173ICU_USBINTR | VRC4173ICU_PIUINTR | VRC4173ICU_KIUINTR | 202 VRC4173ICU_DOZEPIUINTR; 203 bus_space_write_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_MSYSINT1, reg); 204 205 reg = bus_space_read_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_MSYSINT1); 206 bitmask_snprintf(reg, 207 "\20\1USB\2PCMCIA2\3PCMCIA1\4PS2CH2\5PS2CH1\6PIU\7AIU\10KIU" 208 "\11GIU\12AC97\13AC97-1\14B11\15B12\16DOZEPIU\17B14\20B15", 209 buf, sizeof(buf)); 210 printf("%s: MSYSINT1 = 0x%s\n", sc->sc_dev.dv_xname, buf); 211 #endif 212 #endif 213 214 for (i = 0; i < VRC4173BCU_NINTRHAND; i++) 215 sc->sc_intrhand[i].ih_func = NULL; 216 217 /* 218 * Attach sub units found in vrc4173. XXX. 219 */ 220 config_found(self, "vrc4173cmu", vrc4173bcu_print); 221 config_found(self, "vrc4173giu", vrc4173bcu_print); 222 config_found(self, "vrc4173piu", vrc4173bcu_print); 223 config_found(self, "vrc4173kiu", vrc4173bcu_print); 224 config_found(self, "vrc4173aiu", vrc4173bcu_print); 225 config_found(self, "vrc4173ps2u", vrc4173bcu_print); 226 while (1); /* XXX */ 227 228 /* 229 * Establish VRCINT interrupt. Normally connected to one of 230 * GPIO pin in VR41xx. XXX. 231 */ 232 sc->sc_ih = pci_vrcintr_establish(pc, vrcintr_port, 233 vrc4173bcu_intr, sc); 234 if (sc->sc_ih != NULL) 235 printf("%s: interrupting at %p\n", sc->sc_dev.dv_xname, 236 sc->sc_ih); 237 } 238 239 int 240 vrc4173bcu_print(void *aux, const char *pnp) 241 { 242 const char *name = aux; 243 244 if (pnp) 245 printf("%s at %s", name, pnp); 246 247 return (UNCONF); 248 } 249 250 int 251 vrc4173bcu_intr(void *arg) 252 { 253 struct vrc4173bcu_softc *sc = (struct vrc4173bcu_softc *)arg; 254 struct intrhand *ih; 255 u_int16_t reg; 256 int i, handled; 257 258 reg = bus_space_read_2(sc->sc_iot, sc->sc_icuh, VRC4173ICU_SYSINT1); 259 if (reg == 0) 260 return (0); 261 262 #if 0 263 { 264 char buf[80]; 265 bitmask_snprintf(reg, 266 "\20\1USB\2PCMCIA2\3PCMCIA1\4PS2CH2\5PS2CH1\6PIU\7AIU\10KIU" 267 "\11GIU\12AC97\13AC97-1\14B11\15B12\16DOZEPIU\17B14\20B15", 268 buf, sizeof(buf)); 269 printf("%s: %s\n", sc->sc_dev.dv_xname, buf); 270 } 271 #endif 272 for (handled = i = 0; i < VRC4173BCU_NINTRHAND; i++) { 273 ih = &sc->sc_intrhand[i]; 274 if (ih->ih_func != NULL && (reg & (1 << i)) != 0) { 275 handled = 1; 276 (*ih->ih_func)(ih->ih_arg); 277 } 278 } 279 280 return (handled); 281 } 282 283 void * 284 vrc4173bcu_intr_establish(struct vrc4173bcu_softc *sc, int kind, 285 int (*func)(void *), void *arg) 286 { 287 struct intrhand *ih; 288 289 DPRINTF(("vrc4173bcu_intr_establish: %d, %p, %p\n", kind, func, arg)); 290 if (kind < 0 || kind >= VRC4173BCU_NINTRHAND) 291 return (NULL); 292 293 ih = &sc->sc_intrhand[kind]; 294 if (ih->ih_func != NULL) 295 return (NULL); 296 297 ih->ih_func = func; 298 ih->ih_arg = arg; 299 return (ih); 300 } 301 302 void 303 vrc4173bcu_intr_disestablish(struct vrc4173bcu_softc *sc, void *ihp) 304 { 305 struct intrhand *ih = ihp; 306 307 if (ih < &sc->sc_intrhand[0] || 308 ih >= &sc->sc_intrhand[VRC4173BCU_NINTRHAND]) 309 return; 310 311 ih->ih_func = NULL; 312 } 313 314 int 315 vrc4173bcu_pci_bus_devorder(pci_chipset_tag_t pc, int busno, char *devs) 316 { 317 int i, bcudev; 318 319 /* 320 * XXX, we must attach Vrc4173 BCU first. 321 */ 322 323 /* search for BCU */ 324 for (bcudev = 0; bcudev < 32; bcudev++) { 325 pcitag_t tag; 326 pcireg_t id; 327 tag = pci_make_tag(pc, 0, bcudev, 0); 328 id = pci_conf_read(pc, tag, PCI_ID_REG); 329 if (PCI_VENDOR(id) == PCI_VENDOR_NEC && 330 PCI_PRODUCT(id) ==PCI_PRODUCT_NEC_VRC4173_BCU) 331 break; 332 } 333 if (32 <= bcudev) 334 bcudev = 0; /* not found */ 335 336 *devs++ = bcudev; /* scan BCU first */ 337 for (i = 0; i < 32; i++) 338 if (i != bcudev) 339 *devs++ = i; 340 return (i); 341 } 342 343 int 344 vrc4173bcu_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 345 { 346 pci_chipset_tag_t pc = pa->pa_pc; 347 pcitag_t intrtag = pa->pa_intrtag; 348 int bus, dev, func; 349 #ifdef DEBUG 350 int line = pa->pa_intrline; 351 int pin = pa->pa_intrpin; 352 #endif 353 354 pci_decompose_tag(pc, intrtag, &bus, &dev, &func); 355 DPRINTF(("%s(%d, %d, %d): line = %d, pin = %d\n", pc->pc_dev->dv_xname, 356 bus, dev, func, line, pin)); 357 358 *ihp = -1; 359 switch (dev) { 360 case 1: /* CARDU0 */ 361 *ihp = VRC4173ICU_PCMCIA1INTR; 362 break; 363 case 2: /* CARDU1 */ 364 *ihp = VRC4173ICU_PCMCIA2INTR; 365 break; 366 case 19: /* VRC4173 */ 367 switch (func) { 368 case 2: 369 *ihp = VRC4173ICU_USBINTR; 370 break; 371 } 372 break; 373 } 374 375 return (*ihp == -1); 376 } 377 378 const char * 379 vrc4173bcu_pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih) 380 { 381 static char irqstr[8 + sizeof("vrc4173 intr")]; 382 383 snprintf(irqstr, sizeof(irqstr), "vrc4173 intr %d", (int)ih); 384 return (irqstr); 385 } 386 387 const struct evcnt * 388 vrc4173bcu_pci_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih) 389 { 390 391 /* XXX for now, no evcnt parent reported */ 392 return (NULL); 393 } 394 395
Indexes created Wed Oct 01 18:09:54 GMT 2025