1 /* $NetBSD: i82365reg.h,v 1.3 1998/12/20 17:53:28 nathanw Exp $ */ 2 /* $FreeBSD$ */ 3 4 /* 5 * Copyright (c) 2002 M Warner Losh. 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * This software may be derived from NetBSD i82365.c and other files with 28 * the following copyright: 29 * 30 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by Marc Horowitz. 43 * 4. The name of the author may not be used to endorse or promote products 44 * derived from this software without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 */ 57 58 #ifndef _SYS_DEV_EXCA_EXCAREG_H 59 #define _SYS_DEV_EXCA_EXCAREG_H 60 61 /* 62 * All information is from the intel 82365sl PC Card Interface Controller 63 * (PCIC) data sheet, marked "preliminary". Order number 290423-002, January 64 * 1993. 65 */ 66 67 #define EXCA_IOSIZE 2 68 69 #define EXCA_REG_INDEX 0 70 #define EXCA_REG_DATA 1 71 72 #define EXCA_NSLOTS 4 /* 2 in 2 chips */ 73 74 /* 75 * I/o ports 76 */ 77 #define EXCA_INDEX0 0x3e0 78 79 /* 80 * The PCIC allows two chips to share the same address. In order not to run 81 * afoul of the bsd device model, this driver will treat those chips as 82 * the same device. 83 */ 84 85 #define EXCA_CHIP0_BASE 0x00 86 #define EXCA_CHIP1_BASE 0x80 87 88 /* Each PCIC chip can drive two sockets */ 89 90 #define EXCA_SOCKET_SIZE 0x40 91 #define EXCA_SOCKETA_INDEX 0x00 92 #define EXCA_SOCKETB_INDEX EXCA_SOCKET_SIZE 93 94 /* general setup registers */ 95 96 #define EXCA_IDENT 0x00 /* RO */ 97 #define EXCA_IDENT_IFTYPE_MASK 0xC0 98 #define EXCA_IDENT_IFTYPE_IO_ONLY 0x00 99 #define EXCA_IDENT_IFTYPE_MEM_ONLY 0x40 100 #define EXCA_IDENT_IFTYPE_MEM_AND_IO 0x80 101 #define EXCA_IDENT_IFTYPE_RESERVED 0xC0 102 #define EXCA_IDENT_ZERO 0x30 103 #define EXCA_IDENT_REV_MASK 0x0F 104 #define EXCA_IDENT_REV_I82365SLR0 0x02 105 #define EXCA_IDENT_REV_I82365SLR1 0x03 106 107 #define EXCA_IF_STATUS 0x01 /* RO */ 108 #define EXCA_IF_STATUS_GPI 0x80 /* General Purpose Input */ 109 #define EXCA_IF_STATUS_POWERACTIVE 0x40 110 #define EXCA_IF_STATUS_READY 0x20 /* really READY/!BUSY */ 111 #define EXCA_IF_STATUS_MEM_WP 0x10 112 #define EXCA_IF_STATUS_CARDDETECT_MASK 0x0C 113 #define EXCA_IF_STATUS_CARDDETECT_PRESENT 0x0C 114 #define EXCA_IF_STATUS_BATTERY_MASK 0x03 115 #define EXCA_IF_STATUS_BATTERY_DEAD1 0x00 116 #define EXCA_IF_STATUS_BATTERY_DEAD2 0x01 117 #define EXCA_IF_STATUS_BATTERY_WARNING 0x02 118 #define EXCA_IF_STATUS_BATTERY_GOOD 0x03 119 120 #define EXCA_PWRCTL 0x02 /* RW */ 121 #define EXCA_PWRCTL_OE 0x80 /* output enable */ 122 #define EXCA_PWRCTL_DISABLE_RESETDRV 0x40 123 #define EXCA_PWRCTL_AUTOSWITCH_ENABLE 0x20 124 #define EXCA_PWRCTL_PWR_ENABLE 0x10 125 #define EXCA_PWRCTL_VPP2_MASK 0x0C 126 /* XXX these are a little unclear from the data sheet */ 127 #define EXCA_PWRCTL_VPP2_RESERVED 0x0C 128 #define EXCA_PWRCTL_VPP2_EN1 0x08 129 #define EXCA_PWRCTL_VPP2_EN0 0x04 130 #define EXCA_PWRCTL_VPP2_ENX 0x00 131 #define EXCA_PWRCTL_VPP1_MASK 0x03 132 /* XXX these are a little unclear from the data sheet */ 133 #define EXCA_PWRCTL_VPP1_RESERVED 0x03 134 #define EXCA_PWRCTL_VPP1_EN1 0x02 135 #define EXCA_PWRCTL_VPP1_EN0 0x01 136 #define EXCA_PWRCTL_VPP1_ENX 0x00 137 138 #define EXCA_CSC 0x04 /* RW */ 139 #define EXCA_CSC_ZERO 0xE0 140 #define EXCA_CSC_GPI 0x10 141 #define EXCA_CSC_CD 0x08 /* Card Detect Change */ 142 #define EXCA_CSC_READY 0x04 143 #define EXCA_CSC_BATTWARN 0x02 144 #define EXCA_CSC_BATTDEAD 0x01 /* for memory cards */ 145 #define EXCA_CSC_RI 0x01 /* for i/o cards */ 146 147 #define EXCA_ADDRWIN_ENABLE 0x06 /* RW */ 148 #define EXCA_ADDRWIN_ENABLE_IO1 0x80 149 #define EXCA_ADDRWIN_ENABLE_IO0 0x40 150 #define EXCA_ADDRWIN_ENABLE_MEMCS16 0x20 /* rtfds if you care */ 151 #define EXCA_ADDRWIN_ENABLE_MEM4 0x10 152 #define EXCA_ADDRWIN_ENABLE_MEM3 0x08 153 #define EXCA_ADDRWIN_ENABLE_MEM2 0x04 154 #define EXCA_ADDRWIN_ENABLE_MEM1 0x02 155 #define EXCA_ADDRWIN_ENABLE_MEM0 0x01 156 157 #define EXCA_CARD_DETECT 0x16 /* RW */ 158 #define EXCA_CARD_DETECT_RESERVED 0xC0 159 #define EXCA_CARD_DETECT_SW_INTR 0x20 160 #define EXCA_CARD_DETECT_RESUME_ENABLE 0x10 161 #define EXCA_CARD_DETECT_GPI_TRANSCTL 0x08 162 #define EXCA_CARD_DETECT_GPI_ENABLE 0x04 163 #define EXCA_CARD_DETECT_CFGRST_ENABLE 0x02 164 #define EXCA_CARD_DETECT_MEMDLY_INHIBIT 0x01 165 166 /* interrupt registers */ 167 168 #define EXCA_INTR 0x03 /* RW */ 169 #define EXCA_INTR_RI_ENABLE 0x80 170 #define EXCA_INTR_RESET 0x40 /* active low (zero) */ 171 #define EXCA_INTR_CARDTYPE_MASK 0x20 172 #define EXCA_INTR_CARDTYPE_IO 0x20 173 #define EXCA_INTR_CARDTYPE_MEM 0x00 174 #define EXCA_INTR_ENABLE 0x10 175 #define EXCA_INTR_IRQ_MASK 0x0F 176 #define EXCA_INTR_IRQ_SHIFT 0 177 #define EXCA_INTR_IRQ_NONE 0x00 178 #define EXCA_INTR_IRQ_RESERVED1 0x01 179 #define EXCA_INTR_IRQ_RESERVED2 0x02 180 #define EXCA_INTR_IRQ3 0x03 181 #define EXCA_INTR_IRQ4 0x04 182 #define EXCA_INTR_IRQ5 0x05 183 #define EXCA_INTR_IRQ_RESERVED6 0x06 184 #define EXCA_INTR_IRQ7 0x07 185 #define EXCA_INTR_IRQ_RESERVED8 0x08 186 #define EXCA_INTR_IRQ9 0x09 187 #define EXCA_INTR_IRQ10 0x0A 188 #define EXCA_INTR_IRQ11 0x0B 189 #define EXCA_INTR_IRQ12 0x0C 190 #define EXCA_INTR_IRQ_RESERVED13 0x0D 191 #define EXCA_INTR_IRQ14 0x0E 192 #define EXCA_INTR_IRQ15 0x0F 193 194 #define EXCA_INTR_IRQ_VALIDMASK 0xDEB8 /* 1101 1110 1011 1000 */ 195 196 #define EXCA_CSC_INTR 0x05 /* RW */ 197 #define EXCA_CSC_INTR_IRQ_MASK 0xF0 198 #define EXCA_CSC_INTR_IRQ_SHIFT 4 199 #define EXCA_CSC_INTR_IRQ_NONE 0x00 200 #define EXCA_CSC_INTR_IRQ_RESERVED1 0x10 201 #define EXCA_CSC_INTR_IRQ_RESERVED2 0x20 202 #define EXCA_CSC_INTR_IRQ3 0x30 203 #define EXCA_CSC_INTR_IRQ4 0x40 204 #define EXCA_CSC_INTR_IRQ5 0x50 205 #define EXCA_CSC_INTR_IRQ_RESERVED6 0x60 206 #define EXCA_CSC_INTR_IRQ7 0x70 207 #define EXCA_CSC_INTR_IRQ_RESERVED8 0x80 208 #define EXCA_CSC_INTR_IRQ9 0x90 209 #define EXCA_CSC_INTR_IRQ10 0xA0 210 #define EXCA_CSC_INTR_IRQ11 0xB0 211 #define EXCA_CSC_INTR_IRQ12 0xC0 212 #define EXCA_CSC_INTR_IRQ_RESERVED13 0xD0 213 #define EXCA_CSC_INTR_IRQ14 0xE0 214 #define EXCA_CSC_INTR_IRQ15 0xF0 215 #define EXCA_CSC_INTR_CD_ENABLE 0x08 216 #define EXCA_CSC_INTR_READY_ENABLE 0x04 217 #define EXCA_CSC_INTR_BATTWARN_ENABLE 0x02 218 #define EXCA_CSC_INTR_BATTDEAD_ENABLE 0x01 /* for memory cards */ 219 #define EXCA_CSC_INTR_RI_ENABLE 0x01 /* for I/O cards */ 220 221 #define EXCA_CSC_INTR_IRQ_VALIDMASK 0xDEB8 /* 1101 1110 1011 1000 */ 222 223 /* I/O registers */ 224 225 #define EXCA_IO_WINS 2 226 227 #define EXCA_IOCTL 0x07 /* RW */ 228 #define EXCA_IOCTL_IO1_WAITSTATE 0x80 229 #define EXCA_IOCTL_IO1_ZEROWAIT 0x40 230 #define EXCA_IOCTL_IO1_IOCS16SRC_MASK 0x20 231 #define EXCA_IOCTL_IO1_IOCS16SRC_CARD 0x20 232 #define EXCA_IOCTL_IO1_IOCS16SRC_DATASIZE 0x00 233 #define EXCA_IOCTL_IO1_DATASIZE_MASK 0x10 234 #define EXCA_IOCTL_IO1_DATASIZE_16BIT 0x10 235 #define EXCA_IOCTL_IO1_DATASIZE_8BIT 0x00 236 #define EXCA_IOCTL_IO0_WAITSTATE 0x08 237 #define EXCA_IOCTL_IO0_ZEROWAIT 0x04 238 #define EXCA_IOCTL_IO0_IOCS16SRC_MASK 0x02 239 #define EXCA_IOCTL_IO0_IOCS16SRC_CARD 0x02 240 #define EXCA_IOCTL_IO0_IOCS16SRC_DATASIZE 0x00 241 #define EXCA_IOCTL_IO0_DATASIZE_MASK 0x01 242 #define EXCA_IOCTL_IO0_DATASIZE_16BIT 0x01 243 #define EXCA_IOCTL_IO0_DATASIZE_8BIT 0x00 244 245 #define EXCA_IOADDR0_START_LSB 0x08 246 #define EXCA_IOADDR0_START_MSB 0x09 247 #define EXCA_IOADDR0_STOP_LSB 0x0A 248 #define EXCA_IOADDR0_STOP_MSB 0x0B 249 #define EXCA_IOADDR1_START_LSB 0x0C 250 #define EXCA_IOADDR1_START_MSB 0x0D 251 #define EXCA_IOADDR1_STOP_LSB 0x0E 252 #define EXCA_IOADDR1_STOP_MSB 0x0F 253 254 /* memory registers */ 255 256 /* 257 * memory window addresses refer to bits A23-A12 of the ISA system memory 258 * address. This is a shift of 12 bits. The LSB contains A19-A12, and the 259 * MSB contains A23-A20, plus some other bits. 260 */ 261 262 #define EXCA_MEM_WINS 5 263 264 #define EXCA_MEM_SHIFT 12 265 #define EXCA_MEM_PAGESIZE (1<<EXCA_MEM_SHIFT) 266 267 #define EXCA_SYSMEM_ADDRX_SHIFT EXCA_MEM_SHIFT 268 #define EXCA_SYSMEM_ADDRX_START_MSB_DATASIZE_MASK 0x80 269 #define EXCA_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT 0x80 270 #define EXCA_SYSMEM_ADDRX_START_MSB_DATASIZE_8BIT 0x00 271 #define EXCA_SYSMEM_ADDRX_START_MSB_ZEROWAIT 0x40 272 #define EXCA_SYSMEM_ADDRX_START_MSB_SCRATCH_MASK 0x30 273 #define EXCA_SYSMEM_ADDRX_START_MSB_ADDR_MASK 0x0F 274 275 #define EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT_MASK 0xC0 276 #define EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT0 0x00 277 #define EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT1 0x40 278 #define EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT2 0x80 279 #define EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT3 0xC0 280 #define EXCA_SYSMEM_ADDRX_STOP_MSB_ADDR_MASK 0x0F 281 282 /* 283 * The card side of a memory mapping consists of bits A19-A12 of the card 284 * memory address in the LSB, and A25-A20 plus some other bits in the MSB. 285 * Again, the shift is 12 bits. 286 */ 287 288 #define EXCA_CARDMEM_ADDRX_SHIFT EXCA_MEM_SHIFT 289 #define EXCA_CARDMEM_ADDRX_MSB_WP 0x80 290 #define EXCA_CARDMEM_ADDRX_MSB_REGACTIVE_MASK 0x40 291 #define EXCA_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR 0x40 292 #define EXCA_CARDMEM_ADDRX_MSB_REGACTIVE_COMMON 0x00 293 #define EXCA_CARDMEM_ADDRX_MSB_ADDR_MASK 0x3F 294 295 #define EXCA_SYSMEM_ADDR0_START_LSB 0x10 296 #define EXCA_SYSMEM_ADDR0_START_MSB 0x11 297 #define EXCA_SYSMEM_ADDR0_STOP_LSB 0x12 298 #define EXCA_SYSMEM_ADDR0_STOP_MSB 0x13 299 300 #define EXCA_CARDMEM_ADDR0_LSB 0x14 301 #define EXCA_CARDMEM_ADDR0_MSB 0x15 302 303 /* #define EXCA_RESERVED 0x17 */ 304 305 #define EXCA_SYSMEM_ADDR1_START_LSB 0x18 306 #define EXCA_SYSMEM_ADDR1_START_MSB 0x19 307 #define EXCA_SYSMEM_ADDR1_STOP_LSB 0x1A 308 #define EXCA_SYSMEM_ADDR1_STOP_MSB 0x1B 309 310 #define EXCA_CARDMEM_ADDR1_LSB 0x1C 311 #define EXCA_CARDMEM_ADDR1_MSB 0x1D 312 313 #define EXCA_SYSMEM_ADDR2_START_LSB 0x20 314 #define EXCA_SYSMEM_ADDR2_START_MSB 0x21 315 #define EXCA_SYSMEM_ADDR2_STOP_LSB 0x22 316 #define EXCA_SYSMEM_ADDR2_STOP_MSB 0x23 317 318 #define EXCA_CARDMEM_ADDR2_LSB 0x24 319 #define EXCA_CARDMEM_ADDR2_MSB 0x25 320 321 /* #define EXCA_RESERVED 0x26 */ 322 /* #define EXCA_RESERVED 0x27 */ 323 324 #define EXCA_SYSMEM_ADDR3_START_LSB 0x28 325 #define EXCA_SYSMEM_ADDR3_START_MSB 0x29 326 #define EXCA_SYSMEM_ADDR3_STOP_LSB 0x2A 327 #define EXCA_SYSMEM_ADDR3_STOP_MSB 0x2B 328 329 #define EXCA_CARDMEM_ADDR3_LSB 0x2C 330 #define EXCA_CARDMEM_ADDR3_MSB 0x2D 331 332 /* #define EXCA_RESERVED 0x2E */ 333 /* #define EXCA_RESERVED 0x2F */ 334 335 #define EXCA_SYSMEM_ADDR4_START_LSB 0x30 336 #define EXCA_SYSMEM_ADDR4_START_MSB 0x31 337 #define EXCA_SYSMEM_ADDR4_STOP_LSB 0x32 338 #define EXCA_SYSMEM_ADDR4_STOP_MSB 0x33 339 340 #define EXCA_CARDMEM_ADDR4_LSB 0x34 341 #define EXCA_CARDMEM_ADDR4_MSB 0x35 342 343 /* #define EXCA_RESERVED 0x36 */ 344 /* #define EXCA_RESERVED 0x37 */ 345 /* #define EXCA_RESERVED 0x38 */ 346 /* #define EXCA_RESERVED 0x39 */ 347 /* #define EXCA_RESERVED 0x3A */ 348 /* #define EXCA_RESERVED 0x3B */ 349 /* #define EXCA_RESERVED 0x3C */ 350 /* #define EXCA_RESERVED 0x3D */ 351 /* #define EXCA_RESERVED 0x3E */ 352 /* #define EXCA_RESERVED 0x3F */ 353 354 /* cardbus extensions - memory window page registers */ 355 356 #define EXCA_MEMREG_WIN_SHIFT 24 357 #define EXCA_SYSMEM_ADDR0_WIN 0x40 358 #define EXCA_SYSMEM_ADDR1_WIN 0x41 359 #define EXCA_SYSMEM_ADDR2_WIN 0x42 360 #define EXCA_SYSMEM_ADDR3_WIN 0x43 361 #define EXCA_SYSMEM_ADDR4_WIN 0x44 362 363 /* vendor-specific registers */ 364 365 #define EXCA_INTEL_GLOBAL_CTL 0x1E /* RW */ 366 #define EXCA_INTEL_GLOBAL_CTL_RESERVED 0xF0 367 #define EXCA_INTEL_GLOBAL_CTL_IRQ14PULSE_ENABLE 0x08 368 #define EXCA_INTEL_GLOBAL_CTL_EXPLICIT_CSC_ACK 0x04 369 #define EXCA_INTEL_GLOBAL_CTL_IRQLEVEL_ENABLE 0x02 370 #define EXCA_INTEL_GLOBAL_CTL_POWERDOWN 0x01 371 372 #define EXCA_CIRRUS_MISC_CTL_2 0x1E 373 #define EXCA_CIRRUS_MISC_CTL_2_SUSPEND 0x04 374 375 #define EXCA_CIRRUS_CHIP_INFO 0x1F 376 #define EXCA_CIRRUS_CHIP_INFO_CHIP_ID 0xC0 377 #define EXCA_CIRRUS_CHIP_INFO_SLOTS 0x20 378 #define EXCA_CIRRUS_CHIP_INFO_REV 0x1F 379 380 #define EXCA_CIRRUS_EXTENDED_INDEX 0x2E 381 #define EXCA_CIRRUS_EXTENDED_DATA 0x2F 382 #define EXCA_CIRRUS_EXT_CONTROL_1 0x03 383 #define EXCA_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK 0x18 384 385 /* Plug and play */ 386 #define EXCA_PNP_ACTIONTEC 0x1802A904 /* AEI0218 */ 387 #define EXCA_PNP_IBM3765 0x65374d24 /* IBM3765 */ 388 #define EXCA_PNP_82365 0x000ED041 /* PNP0E00 */ 389 #define EXCA_PNP_CL_PD6720 0x010ED041 /* PNP0E01 */ 390 #define EXCA_PNP_VLSI_82C146 0x020ED041 /* PNP0E02 */ 391 #define EXCA_PNP_82365_CARDBUS 0x030ED041 /* PNP0E03 */ 392 #define EXCA_PNP_SCM_SWAPBOX 0x69046d4c /* SMC0469 */ 393 394 /* C-Bus PnP Definitions */ 395 #define EXCA_NEC_PC9801_102 0x9180a3b8 /* NEC8091 PC-9801-102 */ 396 #define EXCA_NEC_PC9821RA_E01 0x2181a3b8 /* NEC8121 PC-9821RA-E01 */ 397 398 /* 399 * Mask of allowable interrupts. 400 * 401 * For IBM-AT machines, irqs 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 are 402 * allowed. Nearly all IBM-AT machines with pcic cards or bridges 403 * wire these interrupts (or a subset thereof) to the corresponding 404 * pins on the ISA bus. Some older laptops are reported to not route 405 * all the interrupt pins to the bus because the designers knew that 406 * some would conflict with builtin devices. Older versions of Windows 407 * NT had a special device that would probe for conflicts early in the 408 * boot process and formulate a mapping table. Maybe we should do 409 * something similar. 410 * 411 * For NEC PC-98 machines, irq 3, 5, 6, 9, 10, 11, 12, 13 are allowed. 412 * These correspond to the C-BUS signals INT 0, 1, 2, 3, 41, 42, 5, 6 413 * respectively. 414 * 415 * Hiroshi TSUKADA-san writes in FreeBSD98-testers that CBUS INT 2 416 * (mapped to IRQ 6) is routed to the IRQ 7 pin of the pcic in pc98 417 * cbus add-in cards. He has confirmed this routing with a visual 418 * inspection of his card or a VOM. 419 */ 420 #ifdef PC98 421 #define EXCA_INT_MASK_ALLOWED 0x3E68 /* PC98 */ 422 #else 423 #define EXCA_INT_MASK_ALLOWED 0xDEB8 /* AT */ 424 #endif 425 426 #endif /* !_SYS_DEV_EXCA_EXCAREG_H */ 427