1 /* $OpenBSD: aic7xxx_openbsd.h,v 1.23 2012/02/12 14:30:51 deraadt Exp $ */ 2 /* $NetBSD: aic7xxx_osm.h,v 1.7 2003/11/02 11:07:44 wiz Exp $ */ 3 4 /* 5 * OpenBSD platform specific driver option settings, data structures, 6 * function declarations and includes. 7 * 8 * Copyright (c) 1994-2001 Justin T. Gibbs. 9 * Copyright (c) 2001-2002 Steve Murphree, Jr. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions, and the following disclaimer, 17 * without modification. 18 * 2. The name of the author(s) may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * Alternatively, this software may be distributed under the terms of the 22 * GNU Public License ("GPL"). 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 28 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.h#14 $ 37 * 38 * $FreeBSD: /repoman/r/ncvs/src/sys/dev/aic7xxx/aic7xxx_osm.h,v 1.20 2002/12/04 22:51:29 scottl Exp $ 39 */ 40 /* 41 * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. - April 2003 42 */ 43 44 #ifndef _AIC7XXX_OPENBSD_H_ 45 #define _AIC7XXX_OPENBSD_H_ 46 47 #include "pci.h" /* for config options */ 48 49 #include <sys/param.h> 50 #include <sys/kernel.h> 51 #include <sys/systm.h> 52 #include <sys/device.h> 53 #include <sys/malloc.h> 54 #include <sys/buf.h> 55 #include <sys/proc.h> 56 #include <sys/queue.h> 57 58 #include <dev/pci/pcireg.h> 59 #include <dev/pci/pcivar.h> 60 61 #include <machine/bus.h> 62 #include <machine/intr.h> 63 64 #include <scsi/scsi_all.h> 65 #include <scsi/scsi_message.h> 66 #include <scsi/scsi_debug.h> 67 #include <scsi/scsiconf.h> 68 69 #include <uvm/uvm_extern.h> 70 71 #ifdef CAM_NEW_TRAN_CODE 72 #define AHC_NEW_TRAN_SETTINGS 73 #endif /* CAM_NEW_TRAN_CODE */ 74 75 #if NPCI > 0 76 #define AHC_PCI_CONFIG 1 77 #endif 78 79 #if 0 80 #define AHC_DEBUG AHC_SHOW_SENSE | AHC_SHOW_MISC | AHC_SHOW_CMDS 81 #endif 82 83 #ifdef DEBUG 84 #define bootverbose 1 85 #else 86 #define bootverbose 0 87 #endif 88 /****************************** Platform Macros *******************************/ 89 90 #define SCSI_IS_SCSIBUS_B(ahc, sc_link) \ 91 ((sc_link)->scsibus == (ahc)->sc_channel_b.scsibus) 92 #define SCSI_SCSI_ID(ahc, sc_link) \ 93 (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? ahc->our_id_b : ahc->our_id) 94 #define SCSI_CHANNEL(ahc, sc_link) \ 95 (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? 'B' : 'A') 96 #define BUILD_SCSIID(ahc, sc_link, target_id, our_id) \ 97 ((((target_id) << TID_SHIFT) & TID) | (our_id) \ 98 | (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? TWIN_CHNLB : 0)) 99 100 #ifndef offsetof 101 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 102 #endif 103 /************************* Forward Declarations *******************************/ 104 typedef struct pci_attach_args * ahc_dev_softc_t; 105 106 /***************************** Bus Space/DMA **********************************/ 107 108 /* XXX Need to update Bus DMA for partial map syncs */ 109 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \ 110 bus_dmamap_sync(dma_tag, dmamap, offset, len, op) 111 112 /************************ Tunable Driver Parameters **************************/ 113 /* 114 * The number of DMA segments supported. The sequencer can handle any number 115 * of physically contiguous S/G entries. To reduce the driver's memory 116 * consumption, we limit the number supported to be sufficient to handle 117 * the largest mapping supported by the kernel, MAXPHYS. Assuming the 118 * transfer is as fragmented as possible and unaligned, this turns out to 119 * be the number of paged sized transfers in MAXPHYS plus an extra element 120 * to handle any unaligned residual. The sequencer fetches SG elements 121 * in cacheline sized chucks, so make the number per-transaction an even 122 * multiple of 16 which should align us on even the largest of cacheline 123 * boundaries. 124 */ 125 #define AHC_NSEG (roundup(atop(MAXPHYS) + 1, 16)) 126 127 /* This driver supports target mode */ 128 //#define AHC_TARGET_MODE 1 129 130 #include <dev/ic/aic7xxxvar.h> 131 132 /************************** Softc/SCB Platform Data ***************************/ 133 struct ahc_platform_data { 134 }; 135 136 struct scb_platform_data { 137 }; 138 139 /* 140 * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This 141 * flag is passed to bus_dmamap_create() to indicate that fact. 142 */ 143 #ifndef ISABUS_DMA_32BIT 144 #define ISABUS_DMA_32BIT BUS_DMA_BUS1 145 #endif 146 147 /************************** Timer DataStructures ******************************/ 148 typedef struct timeout ahc_timer_t; 149 150 /***************************** Core Includes **********************************/ 151 #if AHC_REG_PRETTY_PRINT 152 #define AIC_DEBUG_REGISTERS 1 153 #else 154 #define AIC_DEBUG_REGISTERS 0 155 #endif 156 157 /***************************** Timer Facilities *******************************/ 158 void ahc_timeout(void*); 159 160 #define ahc_timer_init callout_init 161 #define ahc_timer_stop callout_stop 162 163 static __inline void 164 ahc_timer_reset(ahc_timer_t *timer, u_int usec, ahc_callback_t *func, void *arg) 165 { 166 callout_reset(timer, (usec * hz)/1000000, func, arg); 167 } 168 169 static __inline void 170 ahc_scb_timer_reset(struct scb *scb, u_int usec) 171 { 172 if (!(scb->xs->xs_control & XS_CTL_POLL)) { 173 callout_reset(&scb->xs->xs_callout, 174 (usec * hz)/1000000, ahc_timeout, scb); 175 } 176 } 177 178 /*************************** Device Access ************************************/ 179 #define ahc_inb(ahc, port) \ 180 bus_space_read_1((ahc)->tag, (ahc)->bsh, port) 181 182 #define ahc_outb(ahc, port, value) \ 183 bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value) 184 185 #define ahc_outsb(ahc, port, valp, count) \ 186 bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) 187 188 #define ahc_insb(ahc, port, valp, count) \ 189 bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) 190 191 static __inline void ahc_flush_device_writes(struct ahc_softc *); 192 193 static __inline void 194 ahc_flush_device_writes(struct ahc_softc *ahc) 195 { 196 bus_space_barrier(ahc->tag, ahc->bsh, 0, 0x100, 197 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); 198 ahc_inb(ahc, INTSTAT); 199 } 200 201 /**************************** Locking Primitives ******************************/ 202 203 /****************************** OS Primitives *********************************/ 204 205 /************************** Transaction Operations ****************************/ 206 static __inline void ahc_set_transaction_status(struct scb *, uint32_t); 207 static __inline void ahc_set_scsi_status(struct scb *, uint32_t); 208 static __inline uint32_t ahc_get_transaction_status(struct scb *); 209 static __inline uint32_t ahc_get_scsi_status(struct scb *); 210 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int); 211 static __inline u_long ahc_get_transfer_length(struct scb *); 212 static __inline int ahc_get_transfer_dir(struct scb *); 213 static __inline void ahc_set_residual(struct scb *, u_long); 214 static __inline void ahc_set_sense_residual(struct scb *, u_long); 215 static __inline u_long ahc_get_residual(struct scb *); 216 static __inline int ahc_perform_autosense(struct scb *); 217 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, 218 struct scb *); 219 static __inline void ahc_freeze_scb(struct scb *); 220 static __inline void ahc_platform_freeze_devq(struct ahc_softc *, struct scb *); 221 static __inline int ahc_platform_abort_scbs(struct ahc_softc *, int, char, 222 int, u_int, role_t, uint32_t); 223 224 static __inline 225 void ahc_set_transaction_status(struct scb *scb, uint32_t status) 226 { 227 scb->xs->error = status; 228 } 229 230 static __inline 231 void ahc_set_scsi_status(struct scb *scb, uint32_t status) 232 { 233 scb->xs->status = status; 234 } 235 236 static __inline 237 uint32_t ahc_get_transaction_status(struct scb *scb) 238 { 239 if (scb->xs->flags & ITSDONE) 240 return CAM_REQ_CMP; 241 else 242 return scb->xs->error; 243 } 244 245 static __inline 246 uint32_t ahc_get_scsi_status(struct scb *scb) 247 { 248 return (scb->xs->status); 249 } 250 251 static __inline 252 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) 253 { 254 } 255 256 static __inline 257 u_long ahc_get_transfer_length(struct scb *scb) 258 { 259 return (scb->xs->datalen); 260 } 261 262 static __inline 263 int ahc_get_transfer_dir(struct scb *scb) 264 { 265 return (scb->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT)); 266 } 267 268 static __inline 269 void ahc_set_residual(struct scb *scb, u_long resid) 270 { 271 scb->xs->resid = resid; 272 } 273 274 static __inline 275 void ahc_set_sense_residual(struct scb *scb, u_long resid) 276 { 277 scb->xs->resid = resid; 278 } 279 280 static __inline 281 u_long ahc_get_residual(struct scb *scb) 282 { 283 return (scb->xs->resid); 284 } 285 286 static __inline 287 int ahc_perform_autosense(struct scb *scb) 288 { 289 /* Return true for OpenBSD */ 290 return (1); 291 } 292 293 static __inline uint32_t 294 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) 295 { 296 return (sizeof(struct scsi_sense_data)); 297 } 298 299 static __inline void 300 ahc_freeze_scb(struct scb *scb) 301 { 302 } 303 304 static __inline void 305 ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb) 306 { 307 } 308 309 static __inline int 310 ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, 311 char channel, int lun, u_int tag, 312 role_t role, uint32_t status) 313 { 314 return (0); 315 } 316 317 static __inline void 318 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) 319 { 320 int s; 321 322 s = splbio(); 323 324 if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0) { 325 ahc->flags &= ~AHC_RESOURCE_SHORTAGE; 326 } 327 328 timeout_del(&scb->xs->stimeout); 329 330 splx(s); 331 } 332 333 /********************************** PCI ***************************************/ 334 #ifdef AHC_PCI_CONFIG 335 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t, int, int); 336 static __inline void ahc_pci_write_config(ahc_dev_softc_t, int, uint32_t, 337 int); 338 static __inline int ahc_get_pci_function(ahc_dev_softc_t); 339 static __inline int ahc_get_pci_slot(ahc_dev_softc_t); 340 static __inline int ahc_get_pci_bus(ahc_dev_softc_t); 341 342 int ahc_pci_map_registers(struct ahc_softc *); 343 int ahc_pci_map_int(struct ahc_softc *); 344 345 static __inline uint32_t 346 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width) 347 { 348 return (pci_conf_read(pci->pa_pc, pci->pa_tag, reg)); 349 } 350 351 static __inline void 352 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width) 353 { 354 pci_conf_write(pci->pa_pc, pci->pa_tag, reg, value); 355 } 356 357 static __inline int 358 ahc_get_pci_function(ahc_dev_softc_t pci) 359 { 360 return (pci->pa_function); 361 } 362 363 static __inline int 364 ahc_get_pci_slot(ahc_dev_softc_t pci) 365 { 366 return (pci->pa_device); 367 } 368 369 static __inline int 370 ahc_get_pci_bus(ahc_dev_softc_t pci) 371 { 372 return (pci->pa_bus); 373 } 374 375 typedef enum 376 { 377 AHC_POWER_STATE_D0, 378 AHC_POWER_STATE_D1, 379 AHC_POWER_STATE_D2, 380 AHC_POWER_STATE_D3 381 } ahc_power_state; 382 383 void ahc_power_state_change(struct ahc_softc *, ahc_power_state); 384 #endif 385 /******************************** VL/EISA *************************************/ 386 int aic7770_map_registers(struct ahc_softc *, u_int); 387 int aic7770_map_int(struct ahc_softc *, int); 388 389 /********************************* Debug **************************************/ 390 static __inline void ahc_print_path(struct ahc_softc *, struct scb *); 391 static __inline void ahc_platform_dump_card_state(struct ahc_softc *); 392 393 static __inline void 394 ahc_print_path(struct ahc_softc *ahc, struct scb *scb) 395 { 396 sc_print_addr(scb->xs->sc_link); 397 } 398 399 static __inline void 400 ahc_platform_dump_card_state(struct ahc_softc *ahc) 401 { 402 /* Nothing to do here for OpenBSD */ 403 printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n", 404 ahc->features, ahc->flags, ahc->chip, ahc->bugs); 405 } 406 /**************************** Transfer Settings *******************************/ 407 void ahc_notify_xfer_settings_change(struct ahc_softc *, 408 struct ahc_devinfo *); 409 void ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *, int); 410 411 /************************* Initialization/Teardown ****************************/ 412 int ahc_platform_alloc(struct ahc_softc *, void *); 413 void ahc_platform_free(struct ahc_softc *); 414 int ahc_map_int(struct ahc_softc *); 415 int ahc_attach(struct ahc_softc *); 416 int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); 417 int ahc_detach(struct device *, int); 418 419 /****************************** Interrupts ************************************/ 420 int ahc_platform_intr(void *); 421 static __inline void ahc_platform_flushwork(struct ahc_softc *); 422 static __inline void 423 ahc_platform_flushwork(struct ahc_softc *ahc) 424 { 425 } 426 427 /************************ Misc Function Declarations **************************/ 428 void ahc_done(struct ahc_softc *, struct scb *); 429 void ahc_send_async(struct ahc_softc *, char, u_int, u_int, ac_code, 430 void *); 431 432 #endif /* _AIC7XXX_OPENBSD_H_ */ 433