| File: | dev/pci/pci_subr.c |
| Warning: | line 351, column 2 Value stored to 'interface' is never read |
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| 1 | /* $OpenBSD: pci_subr.c,v 1.22 2017/03/22 07:21:39 jsg Exp $ */ |
| 2 | /* $NetBSD: pci_subr.c,v 1.19 1996/10/13 01:38:29 christos Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 1995, 1996 Christopher G. Demetriou. All rights reserved. |
| 6 | * Copyright (c) 1994 Charles Hannum. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by Charles Hannum. |
| 19 | * 4. The name of the author may not be used to endorse or promote products |
| 20 | * derived from this software without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 24 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 25 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | /* |
| 35 | * PCI autoconfiguration support functions. |
| 36 | */ |
| 37 | |
| 38 | #include <sys/param.h> |
| 39 | #include <sys/systm.h> |
| 40 | #include <sys/device.h> |
| 41 | |
| 42 | #include <dev/pci/pcireg.h> |
| 43 | #include <dev/pci/pcivar.h> |
| 44 | #ifdef PCIVERBOSE1 |
| 45 | #include <dev/pci/pcidevs.h> |
| 46 | #include <dev/pci/pcidevs_data.h> |
| 47 | #endif |
| 48 | |
| 49 | /* |
| 50 | * Descriptions of known PCI classes and subclasses. |
| 51 | * |
| 52 | * Subclasses are described in the same way as classes, but have a |
| 53 | * NULL subclass pointer. |
| 54 | */ |
| 55 | struct pci_class { |
| 56 | const char *name; |
| 57 | int val; /* as wide as pci_{,sub}class_t */ |
| 58 | const struct pci_class *subclasses; |
| 59 | }; |
| 60 | |
| 61 | const struct pci_class pci_subclass_prehistoric[] = { |
| 62 | { "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC0x00, }, |
| 63 | { "VGA", PCI_SUBCLASS_PREHISTORIC_VGA0x01, }, |
| 64 | { 0 } |
| 65 | }; |
| 66 | |
| 67 | const struct pci_class pci_subclass_mass_storage[] = { |
| 68 | { "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI0x00, }, |
| 69 | { "IDE", PCI_SUBCLASS_MASS_STORAGE_IDE0x01, }, |
| 70 | { "floppy", PCI_SUBCLASS_MASS_STORAGE_FLOPPY0x02, }, |
| 71 | { "IPI", PCI_SUBCLASS_MASS_STORAGE_IPI0x03, }, |
| 72 | { "RAID", PCI_SUBCLASS_MASS_STORAGE_RAID0x04, }, |
| 73 | { "ATA", PCI_SUBCLASS_MASS_STORAGE_ATA0x05, }, |
| 74 | { "SATA", PCI_SUBCLASS_MASS_STORAGE_SATA0x06, }, |
| 75 | { "SAS", PCI_SUBCLASS_MASS_STORAGE_SAS0x07, }, |
| 76 | { "UFS", PCI_SUBCLASS_MASS_STORAGE_UFS0x09, }, |
| 77 | { "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC0x80, }, |
| 78 | { 0 }, |
| 79 | }; |
| 80 | |
| 81 | const struct pci_class pci_subclass_network[] = { |
| 82 | { "ethernet", PCI_SUBCLASS_NETWORK_ETHERNET0x00, }, |
| 83 | { "token ring", PCI_SUBCLASS_NETWORK_TOKENRING0x01, }, |
| 84 | { "FDDI", PCI_SUBCLASS_NETWORK_FDDI0x02, }, |
| 85 | { "ATM", PCI_SUBCLASS_NETWORK_ATM0x03, }, |
| 86 | { "ISDN", PCI_SUBCLASS_NETWORK_ISDN0x04, }, |
| 87 | { "WorldFip", PCI_SUBCLASS_NETWORK_WORLDFIP0x05, }, |
| 88 | { "PCMIG Multi Computing", PCI_SUBCLASS_NETWORK_PCIMGMULTICOMP0x06, }, |
| 89 | { "InfiniBand", PCI_SUBCLASS_NETWORK_INFINIBAND0x07, }, |
| 90 | { "miscellaneous", PCI_SUBCLASS_NETWORK_MISC0x80, }, |
| 91 | { 0 }, |
| 92 | }; |
| 93 | |
| 94 | const struct pci_class pci_subclass_display[] = { |
| 95 | { "VGA", PCI_SUBCLASS_DISPLAY_VGA0x00, }, |
| 96 | { "XGA", PCI_SUBCLASS_DISPLAY_XGA0x01, }, |
| 97 | { "3D", PCI_SUBCLASS_DISPLAY_3D0x02, }, |
| 98 | { "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC0x80, }, |
| 99 | { 0 }, |
| 100 | }; |
| 101 | |
| 102 | const struct pci_class pci_subclass_multimedia[] = { |
| 103 | { "video", PCI_SUBCLASS_MULTIMEDIA_VIDEO0x00, }, |
| 104 | { "audio", PCI_SUBCLASS_MULTIMEDIA_AUDIO0x01, }, |
| 105 | { "telephony", PCI_SUBCLASS_MULTIMEDIA_TELEPHONY0x02, }, |
| 106 | { "hdaudio", PCI_SUBCLASS_MULTIMEDIA_HDAUDIO0x03, }, |
| 107 | { "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC0x80, }, |
| 108 | { 0 }, |
| 109 | }; |
| 110 | |
| 111 | const struct pci_class pci_subclass_memory[] = { |
| 112 | { "RAM", PCI_SUBCLASS_MEMORY_RAM0x00, }, |
| 113 | { "flash", PCI_SUBCLASS_MEMORY_FLASH0x01, }, |
| 114 | { "miscellaneous", PCI_SUBCLASS_MEMORY_MISC0x80, }, |
| 115 | { 0 }, |
| 116 | }; |
| 117 | |
| 118 | const struct pci_class pci_subclass_bridge[] = { |
| 119 | { "host", PCI_SUBCLASS_BRIDGE_HOST0x00, }, |
| 120 | { "ISA", PCI_SUBCLASS_BRIDGE_ISA0x01, }, |
| 121 | { "EISA", PCI_SUBCLASS_BRIDGE_EISA0x02, }, |
| 122 | { "MicroChannel", PCI_SUBCLASS_BRIDGE_MC0x03, }, |
| 123 | { "PCI", PCI_SUBCLASS_BRIDGE_PCI0x04, }, |
| 124 | { "PCMCIA", PCI_SUBCLASS_BRIDGE_PCMCIA0x05, }, |
| 125 | { "NuBus", PCI_SUBCLASS_BRIDGE_NUBUS0x06, }, |
| 126 | { "CardBus", PCI_SUBCLASS_BRIDGE_CARDBUS0x07, }, |
| 127 | { "RACEway", PCI_SUBCLASS_BRIDGE_RACEWAY0x08, }, |
| 128 | { "Semi-transparent PCI", PCI_SUBCLASS_BRIDGE_STPCI0x09, }, |
| 129 | { "InfiniBand", PCI_SUBCLASS_BRIDGE_INFINIBAND0x0a, }, |
| 130 | { "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC0x80, }, |
| 131 | { "advanced switching", PCI_SUBCLASS_BRIDGE_AS0x0b, }, |
| 132 | { 0 }, |
| 133 | }; |
| 134 | |
| 135 | const struct pci_class pci_subclass_communications[] = { |
| 136 | { "serial", PCI_SUBCLASS_COMMUNICATIONS_SERIAL0x00, }, |
| 137 | { "parallel", PCI_SUBCLASS_COMMUNICATIONS_PARALLEL0x01, }, |
| 138 | { "multi-port serial", PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL0x02, }, |
| 139 | { "modem", PCI_SUBCLASS_COMMUNICATIONS_MODEM0x03, }, |
| 140 | { "GPIB", PCI_SUBCLASS_COMMUNICATIONS_GPIB0x04, }, |
| 141 | { "smartcard", PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD0x05, }, |
| 142 | { "miscellaneous", PCI_SUBCLASS_COMMUNICATIONS_MISC0x80, }, |
| 143 | { 0 }, |
| 144 | }; |
| 145 | |
| 146 | const struct pci_class pci_subclass_system[] = { |
| 147 | { "interrupt", PCI_SUBCLASS_SYSTEM_PIC0x00, }, |
| 148 | { "8237 DMA", PCI_SUBCLASS_SYSTEM_DMA0x01, }, |
| 149 | { "8254 timer", PCI_SUBCLASS_SYSTEM_TIMER0x02, }, |
| 150 | { "RTC", PCI_SUBCLASS_SYSTEM_RTC0x03, }, |
| 151 | { "PCI Hot-Plug", PCI_SUBCLASS_SYSTEM_PCIHOTPLUG0x04, }, |
| 152 | { "SD Host Controller", PCI_SUBCLASS_SYSTEM_SDHC0x05, }, |
| 153 | { "IOMMU", PCI_SUBCLASS_SYSTEM_IOMMU0x06, }, |
| 154 | { "root complex event", PCI_SUBCLASS_SYSTEM_ROOTCOMPEVENT0x07, }, |
| 155 | { "miscellaneous", PCI_SUBCLASS_SYSTEM_MISC0x80, }, |
| 156 | { 0 }, |
| 157 | }; |
| 158 | |
| 159 | const struct pci_class pci_subclass_input[] = { |
| 160 | { "keyboard", PCI_SUBCLASS_INPUT_KEYBOARD0x00, }, |
| 161 | { "digitizer", PCI_SUBCLASS_INPUT_DIGITIZER0x01, }, |
| 162 | { "mouse", PCI_SUBCLASS_INPUT_MOUSE0x02, }, |
| 163 | { "scanner", PCI_SUBCLASS_INPUT_SCANNER0x03, }, |
| 164 | { "game port", PCI_SUBCLASS_INPUT_GAMEPORT0x04, }, |
| 165 | { "miscellaneous", PCI_SUBCLASS_INPUT_MISC0x80, }, |
| 166 | { 0 }, |
| 167 | }; |
| 168 | |
| 169 | const struct pci_class pci_subclass_dock[] = { |
| 170 | { "generic", PCI_SUBCLASS_DOCK_GENERIC0x00, }, |
| 171 | { "miscellaneous", PCI_SUBCLASS_DOCK_MISC0x80, }, |
| 172 | { 0 }, |
| 173 | }; |
| 174 | |
| 175 | const struct pci_class pci_subclass_processor[] = { |
| 176 | { "386", PCI_SUBCLASS_PROCESSOR_3860x00, }, |
| 177 | { "486", PCI_SUBCLASS_PROCESSOR_4860x01, }, |
| 178 | { "Pentium", PCI_SUBCLASS_PROCESSOR_PENTIUM0x02, }, |
| 179 | { "Alpha", PCI_SUBCLASS_PROCESSOR_ALPHA0x10, }, |
| 180 | { "PowerPC", PCI_SUBCLASS_PROCESSOR_POWERPC0x20, }, |
| 181 | { "MIPS", PCI_SUBCLASS_PROCESSOR_MIPS0x30, }, |
| 182 | { "Co-processor", PCI_SUBCLASS_PROCESSOR_COPROC0x40, }, |
| 183 | { 0 }, |
| 184 | }; |
| 185 | |
| 186 | const struct pci_class pci_subclass_serialbus[] = { |
| 187 | { "Firewire", PCI_SUBCLASS_SERIALBUS_FIREWIRE0x00, }, |
| 188 | { "ACCESS.bus", PCI_SUBCLASS_SERIALBUS_ACCESS0x01, }, |
| 189 | { "SSA", PCI_SUBCLASS_SERIALBUS_SSA0x02, }, |
| 190 | { "USB", PCI_SUBCLASS_SERIALBUS_USB0x03, }, |
| 191 | /* XXX Fiber Channel/_FIBRECHANNEL */ |
| 192 | { "Fiber Channel", PCI_SUBCLASS_SERIALBUS_FIBER0x04, }, |
| 193 | { "SMBus", PCI_SUBCLASS_SERIALBUS_SMBUS0x05, }, |
| 194 | { "InfiniBand", PCI_SUBCLASS_SERIALBUS_INFINIBAND0x06, }, |
| 195 | { "IPMI", PCI_SUBCLASS_SERIALBUS_IPMI0x07, }, |
| 196 | { "SERCOS", PCI_SUBCLASS_SERIALBUS_SERCOS0x08, }, |
| 197 | { "CANbus", PCI_SUBCLASS_SERIALBUS_CANBUS0x09, }, |
| 198 | { 0 }, |
| 199 | }; |
| 200 | |
| 201 | const struct pci_class pci_subclass_wireless[] = { |
| 202 | { "IrDA", PCI_SUBCLASS_WIRELESS_IRDA0x00, }, |
| 203 | { "Consumer IR", PCI_SUBCLASS_WIRELESS_CONSUMERIR0x01, }, |
| 204 | { "RF", PCI_SUBCLASS_WIRELESS_RF0x10, }, |
| 205 | { "bluetooth", PCI_SUBCLASS_WIRELESS_BLUETOOTH0x11, }, |
| 206 | { "broadband", PCI_SUBCLASS_WIRELESS_BROADBAND0x12, }, |
| 207 | { "802.11a (5 GHz)", PCI_SUBCLASS_WIRELESS_802_11A0x20, }, |
| 208 | { "802.11b (2.4 GHz)", PCI_SUBCLASS_WIRELESS_802_11B0x21, }, |
| 209 | { "miscellaneous", PCI_SUBCLASS_WIRELESS_MISC0x80, }, |
| 210 | { 0 }, |
| 211 | }; |
| 212 | |
| 213 | const struct pci_class pci_subclass_i2o[] = { |
| 214 | { "standard", PCI_SUBCLASS_I2O_STANDARD0x00, }, |
| 215 | { 0 }, |
| 216 | }; |
| 217 | |
| 218 | const struct pci_class pci_subclass_satcom[] = { |
| 219 | { "TV", PCI_SUBCLASS_SATCOM_TV0x01, }, |
| 220 | { "audio", PCI_SUBCLASS_SATCOM_AUDIO0x02, }, |
| 221 | { "voice", PCI_SUBCLASS_SATCOM_VOICE0x03, }, |
| 222 | { "data", PCI_SUBCLASS_SATCOM_DATA0x04, }, |
| 223 | { 0 }, |
| 224 | }; |
| 225 | |
| 226 | const struct pci_class pci_subclass_crypto[] = { |
| 227 | { "network/computing", PCI_SUBCLASS_CRYPTO_NETCOMP0x00, }, |
| 228 | { "entertainment", PCI_SUBCLASS_CRYPTO_ENTERTAINMENT0x10, }, |
| 229 | { "miscellaneous", PCI_SUBCLASS_CRYPTO_MISC0x80, }, |
| 230 | { 0 }, |
| 231 | }; |
| 232 | |
| 233 | const struct pci_class pci_subclass_dasp[] = { |
| 234 | { "DPIO", PCI_SUBCLASS_DASP_DPIO0x00, }, |
| 235 | { "Time and Frequency", PCI_SUBCLASS_DASP_TIMEFREQ0x01, }, |
| 236 | { "synchronization", PCI_SUBCLASS_DASP_SYNC0x10, }, |
| 237 | { "management", PCI_SUBCLASS_DASP_MGMT0x20, }, |
| 238 | { "miscellaneous", PCI_SUBCLASS_DASP_MISC0x80, }, |
| 239 | { 0 }, |
| 240 | }; |
| 241 | |
| 242 | const struct pci_class pci_class[] = { |
| 243 | { "prehistoric", PCI_CLASS_PREHISTORIC0x00, |
| 244 | pci_subclass_prehistoric, }, |
| 245 | { "mass storage", PCI_CLASS_MASS_STORAGE0x01, |
| 246 | pci_subclass_mass_storage, }, |
| 247 | { "network", PCI_CLASS_NETWORK0x02, |
| 248 | pci_subclass_network, }, |
| 249 | { "display", PCI_CLASS_DISPLAY0x03, |
| 250 | pci_subclass_display, }, |
| 251 | { "multimedia", PCI_CLASS_MULTIMEDIA0x04, |
| 252 | pci_subclass_multimedia, }, |
| 253 | { "memory", PCI_CLASS_MEMORY0x05, |
| 254 | pci_subclass_memory, }, |
| 255 | { "bridge", PCI_CLASS_BRIDGE0x06, |
| 256 | pci_subclass_bridge, }, |
| 257 | { "communications", PCI_CLASS_COMMUNICATIONS0x07, |
| 258 | pci_subclass_communications, }, |
| 259 | { "system", PCI_CLASS_SYSTEM0x08, |
| 260 | pci_subclass_system, }, |
| 261 | { "input", PCI_CLASS_INPUT0x09, |
| 262 | pci_subclass_input, }, |
| 263 | { "dock", PCI_CLASS_DOCK0x0a, |
| 264 | pci_subclass_dock, }, |
| 265 | { "processor", PCI_CLASS_PROCESSOR0x0b, |
| 266 | pci_subclass_processor, }, |
| 267 | { "serial bus", PCI_CLASS_SERIALBUS0x0c, |
| 268 | pci_subclass_serialbus, }, |
| 269 | { "wireless", PCI_CLASS_WIRELESS0x0d, |
| 270 | pci_subclass_wireless, }, |
| 271 | { "I2O", PCI_CLASS_I2O0x0e, |
| 272 | pci_subclass_i2o, }, |
| 273 | { "satellite comm", PCI_CLASS_SATCOM0x0f, |
| 274 | pci_subclass_satcom, }, |
| 275 | { "crypto", PCI_CLASS_CRYPTO0x10, |
| 276 | pci_subclass_crypto, }, |
| 277 | { "DASP", PCI_CLASS_DASP0x11, |
| 278 | pci_subclass_dasp, }, |
| 279 | { "accelerator", PCI_CLASS_ACCELERATOR0x12, |
| 280 | NULL((void *)0), }, |
| 281 | { "instrumentation", PCI_CLASS_INSTRUMENTATION0x13, |
| 282 | NULL((void *)0), }, |
| 283 | { "undefined", PCI_CLASS_UNDEFINED0xff, |
| 284 | 0, }, |
| 285 | { 0 }, |
| 286 | }; |
| 287 | |
| 288 | const char * |
| 289 | pci_findvendor(pcireg_t id_reg) |
| 290 | { |
| 291 | #ifdef PCIVERBOSE1 |
| 292 | pci_vendor_id_t vendor = PCI_VENDOR(id_reg)(((id_reg) >> 0) & 0xffff); |
| 293 | const struct pci_known_vendor *kdp; |
| 294 | |
| 295 | kdp = pci_known_vendors; |
| 296 | while (kdp->vendorname != NULL((void *)0)) { /* all have vendor name */ |
| 297 | if (kdp->vendor == vendor) |
| 298 | break; |
| 299 | kdp++; |
| 300 | } |
| 301 | return (kdp->vendorname); |
| 302 | #else |
| 303 | return (NULL((void *)0)); |
| 304 | #endif |
| 305 | } |
| 306 | |
| 307 | const char * |
| 308 | pci_findproduct(pcireg_t id_reg) |
| 309 | { |
| 310 | #ifdef PCIVERBOSE1 |
| 311 | pci_vendor_id_t vendor = PCI_VENDOR(id_reg)(((id_reg) >> 0) & 0xffff); |
| 312 | pci_product_id_t product = PCI_PRODUCT(id_reg)(((id_reg) >> 16) & 0xffff); |
| 313 | const struct pci_known_product *pkp; |
| 314 | |
| 315 | pkp = pci_known_products; |
| 316 | while (pkp->productname != NULL((void *)0)) { /* all have product name */ |
| 317 | if (pkp->vendor == vendor && pkp->product == product) |
| 318 | break; |
| 319 | pkp++; |
| 320 | } |
| 321 | return (pkp->productname); |
| 322 | #else |
| 323 | return NULL((void *)0); |
| 324 | #endif |
| 325 | } |
| 326 | |
| 327 | void |
| 328 | pci_devinfo(pcireg_t id_reg, pcireg_t class_reg, int showclass, char *cp, |
| 329 | size_t cp_max) |
| 330 | { |
| 331 | pci_vendor_id_t vendor; |
| 332 | pci_product_id_t product; |
| 333 | pci_class_t class; |
| 334 | pci_subclass_t subclass; |
| 335 | pci_interface_t interface; |
| 336 | pci_revision_t revision; |
| 337 | const char *vendor_namep = NULL((void *)0), *product_namep = NULL((void *)0); |
| 338 | const struct pci_class *classp, *subclassp; |
| 339 | size_t cp_len = 0; |
| 340 | #ifdef PCIVERBOSE1 |
| 341 | const char *unmatched = "unknown "; |
| 342 | #else |
| 343 | const char *unmatched = ""; |
| 344 | #endif |
| 345 | |
| 346 | vendor = PCI_VENDOR(id_reg)(((id_reg) >> 0) & 0xffff); |
| 347 | product = PCI_PRODUCT(id_reg)(((id_reg) >> 16) & 0xffff); |
| 348 | |
| 349 | class = PCI_CLASS(class_reg)(((class_reg) >> 24) & 0xff); |
| 350 | subclass = PCI_SUBCLASS(class_reg)(((class_reg) >> 16) & 0xff); |
| 351 | interface = PCI_INTERFACE(class_reg)(((class_reg) >> 8) & 0xff); |
Value stored to 'interface' is never read | |
| 352 | revision = PCI_REVISION(class_reg)(((class_reg) >> 0) & 0xff); |
| 353 | |
| 354 | #ifdef PCIVERBOSE1 |
| 355 | vendor_namep = pci_findvendor(id_reg); |
| 356 | if (vendor_namep != NULL((void *)0)) |
| 357 | product_namep = pci_findproduct(id_reg); |
| 358 | #endif /* PCIVERBOSE */ |
| 359 | |
| 360 | classp = pci_class; |
| 361 | while (classp->name != NULL((void *)0)) { |
| 362 | if (class == classp->val) |
| 363 | break; |
| 364 | classp++; |
| 365 | } |
| 366 | |
| 367 | subclassp = (classp->name != NULL((void *)0)) ? classp->subclasses : NULL((void *)0); |
| 368 | while (subclassp && subclassp->name != NULL((void *)0)) { |
| 369 | if (subclass == subclassp->val) |
| 370 | break; |
| 371 | subclassp++; |
| 372 | } |
| 373 | |
| 374 | if (vendor_namep == NULL((void *)0)) |
| 375 | snprintf(cp, cp_max, "%svendor 0x%04x product 0x%04x", |
| 376 | unmatched, vendor, product); |
| 377 | else if (product_namep != NULL((void *)0)) |
| 378 | snprintf(cp, cp_max, "\"%s %s\"", vendor_namep, product_namep); |
| 379 | else |
| 380 | snprintf(cp, cp_max, "vendor \"%s\", unknown product 0x%04x", |
| 381 | vendor_namep, product); |
| 382 | if (showclass && product_namep == NULL((void *)0)) { |
| 383 | strlcat(cp, " (", cp_max); |
| 384 | cp_len = strlen(cp); |
| 385 | if (classp->name == NULL((void *)0)) |
| 386 | snprintf(cp + cp_len, cp_max - cp_len, |
| 387 | "unknown class 0x%02x, subclass 0x%02x", |
| 388 | class, subclass); |
| 389 | else if (subclassp == NULL((void *)0) || subclassp->name == NULL((void *)0)) |
| 390 | snprintf(cp + cp_len, cp_max - cp_len, |
| 391 | "class %s unknown subclass 0x%02x", classp->name, |
| 392 | subclass); |
| 393 | else |
| 394 | snprintf(cp + cp_len, cp_max - cp_len, |
| 395 | "class %s subclass %s", classp->name, |
| 396 | subclassp->name); |
| 397 | #if 0 /* not very useful */ |
| 398 | cp_len = strlen(cp); |
| 399 | snprintf(cp + cp_len, cp_max - cp_len, |
| 400 | ", interface 0x%02x", interface); |
| 401 | #endif |
| 402 | cp_len = strlen(cp); |
| 403 | snprintf(cp + cp_len, cp_max - cp_len, |
| 404 | ", rev 0x%02x)", revision); |
| 405 | } else { |
| 406 | cp_len = strlen(cp); |
| 407 | snprintf(cp + cp_len, cp_max - cp_len, " rev 0x%02x", |
| 408 | revision); |
| 409 | } |
| 410 | } |