1 /* $OpenBSD: aic7xxx_openbsd.h,v 1.26 2016/08/17 01:17:54 krw 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/queue.h> 56 57 #include <dev/pci/pcireg.h> 58 #include <dev/pci/pcivar.h> 59 60 #include <machine/bus.h> 61 #include <machine/intr.h> 62 63 #include <scsi/scsi_all.h> 64 #include <scsi/scsi_message.h> 65 #include <scsi/scsi_debug.h> 66 #include <scsi/scsiconf.h> 67 68 #include <uvm/uvm_extern.h> 69 70 #ifdef CAM_NEW_TRAN_CODE 71 #define AHC_NEW_TRAN_SETTINGS 72 #endif /* CAM_NEW_TRAN_CODE */ 73 74 #if NPCI > 0 75 #define AHC_PCI_CONFIG 1 76 #endif 77 78 #if 0 79 #define AHC_DEBUG AHC_SHOW_SENSE | AHC_SHOW_MISC | AHC_SHOW_CMDS 80 #endif 81 82 #ifdef DEBUG 83 #define bootverbose 1 84 #else 85 #define bootverbose 0 86 #endif 87 /****************************** Platform Macros *******************************/ 88 89 #define SCSI_IS_SCSIBUS_B(ahc, sc_link) \ 90 ((sc_link)->scsibus == (ahc)->sc_channel_b.scsibus) 91 #define SCSI_SCSI_ID(ahc, sc_link) \ 92 (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? ahc->our_id_b : ahc->our_id) 93 #define SCSI_CHANNEL(ahc, sc_link) \ 94 (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? 'B' : 'A') 95 #define BUILD_SCSIID(ahc, sc_link, target_id, our_id) \ 96 ((((target_id) << TID_SHIFT) & TID) | (our_id) \ 97 | (SCSI_IS_SCSIBUS_B(ahc, sc_link) ? TWIN_CHNLB : 0)) 98 99 #ifndef offsetof 100 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 101 #endif 102 /************************* Forward Declarations *******************************/ 103 typedef struct pci_attach_args * ahc_dev_softc_t; 104 105 /***************************** Bus Space/DMA **********************************/ 106 107 /* XXX Need to update Bus DMA for partial map syncs */ 108 #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) \ 109 bus_dmamap_sync(dma_tag, dmamap, offset, len, op) 110 111 /************************ Tunable Driver Parameters **************************/ 112 /* 113 * The number of DMA segments supported. The sequencer can handle any number 114 * of physically contiguous S/G entries. To reduce the driver's memory 115 * consumption, we limit the number supported to be sufficient to handle 116 * the largest mapping supported by the kernel, MAXPHYS. Assuming the 117 * transfer is as fragmented as possible and unaligned, this turns out to 118 * be the number of paged sized transfers in MAXPHYS plus an extra element 119 * to handle any unaligned residual. The sequencer fetches SG elements 120 * in cacheline sized chucks, so make the number per-transaction an even 121 * multiple of 16 which should align us on even the largest of cacheline 122 * boundaries. 123 */ 124 #define AHC_NSEG (roundup(atop(MAXPHYS) + 1, 16)) 125 126 /* This driver supports target mode */ 127 //#define AHC_TARGET_MODE 1 128 129 #include <dev/ic/aic7xxxvar.h> 130 131 /************************** Softc/SCB Platform Data ***************************/ 132 struct ahc_platform_data { 133 }; 134 135 struct scb_platform_data { 136 }; 137 138 /* 139 * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This 140 * flag is passed to bus_dmamap_create() to indicate that fact. 141 */ 142 #ifndef ISABUS_DMA_32BIT 143 #define ISABUS_DMA_32BIT BUS_DMA_BUS1 144 #endif 145 146 /************************** Timer DataStructures ******************************/ 147 typedef struct timeout ahc_timer_t; 148 149 /***************************** Core Includes **********************************/ 150 #if AHC_REG_PRETTY_PRINT 151 #define AIC_DEBUG_REGISTERS 1 152 #else 153 #define AIC_DEBUG_REGISTERS 0 154 #endif 155 156 /***************************** Timer Facilities *******************************/ 157 void ahc_timeout(void*); 158 159 #define ahc_timer_init callout_init 160 #define ahc_timer_stop callout_stop 161 162 static __inline void 163 ahc_timer_reset(ahc_timer_t *timer, u_int usec, ahc_callback_t *func, void *arg) 164 { 165 callout_reset(timer, (usec * hz)/1000000, func, arg); 166 } 167 168 static __inline void 169 ahc_scb_timer_reset(struct scb *scb, u_int usec) 170 { 171 if (!(scb->xs->xs_control & XS_CTL_POLL)) { 172 callout_reset(&scb->xs->xs_callout, 173 (usec * hz)/1000000, ahc_timeout, scb); 174 } 175 } 176 177 /*************************** Device Access ************************************/ 178 #define ahc_inb(ahc, port) \ 179 bus_space_read_1((ahc)->tag, (ahc)->bsh, port) 180 181 #define ahc_outb(ahc, port, value) \ 182 bus_space_write_1((ahc)->tag, (ahc)->bsh, port, value) 183 184 #define ahc_outsb(ahc, port, valp, count) \ 185 bus_space_write_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) 186 187 #define ahc_insb(ahc, port, valp, count) \ 188 bus_space_read_multi_1((ahc)->tag, (ahc)->bsh, port, valp, count) 189 190 static __inline void ahc_flush_device_writes(struct ahc_softc *); 191 192 static __inline void 193 ahc_flush_device_writes(struct ahc_softc *ahc) 194 { 195 bus_space_barrier(ahc->tag, ahc->bsh, 0, 0x100, 196 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); 197 ahc_inb(ahc, INTSTAT); 198 } 199 200 /**************************** Locking Primitives ******************************/ 201 202 /****************************** OS Primitives *********************************/ 203 204 /************************** Transaction Operations ****************************/ 205 static __inline void ahc_set_transaction_status(struct scb *, uint32_t); 206 static __inline void ahc_set_scsi_status(struct scb *, uint32_t); 207 static __inline uint32_t ahc_get_transaction_status(struct scb *); 208 static __inline uint32_t ahc_get_scsi_status(struct scb *); 209 static __inline void ahc_set_transaction_tag(struct scb *, int, u_int); 210 static __inline u_long ahc_get_transfer_length(struct scb *); 211 static __inline int ahc_get_transfer_dir(struct scb *); 212 static __inline void ahc_set_residual(struct scb *, u_long); 213 static __inline void ahc_set_sense_residual(struct scb *, u_long); 214 static __inline u_long ahc_get_residual(struct scb *); 215 static __inline int ahc_perform_autosense(struct scb *); 216 static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, 217 struct scb *); 218 static __inline void ahc_freeze_scb(struct scb *); 219 static __inline void ahc_platform_freeze_devq(struct ahc_softc *, struct scb *); 220 static __inline int ahc_platform_abort_scbs(struct ahc_softc *, int, char, 221 int, u_int, role_t, uint32_t); 222 223 static __inline 224 void ahc_set_transaction_status(struct scb *scb, uint32_t status) 225 { 226 scb->xs->error = status; 227 } 228 229 static __inline 230 void ahc_set_scsi_status(struct scb *scb, uint32_t status) 231 { 232 scb->xs->status = status; 233 } 234 235 static __inline 236 uint32_t ahc_get_transaction_status(struct scb *scb) 237 { 238 if (scb->xs->flags & ITSDONE) 239 return CAM_REQ_CMP; 240 else 241 return scb->xs->error; 242 } 243 244 static __inline 245 uint32_t ahc_get_scsi_status(struct scb *scb) 246 { 247 return (scb->xs->status); 248 } 249 250 static __inline 251 void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) 252 { 253 } 254 255 static __inline 256 u_long ahc_get_transfer_length(struct scb *scb) 257 { 258 return (scb->xs->datalen); 259 } 260 261 static __inline 262 int ahc_get_transfer_dir(struct scb *scb) 263 { 264 return (scb->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT)); 265 } 266 267 static __inline 268 void ahc_set_residual(struct scb *scb, u_long resid) 269 { 270 scb->xs->resid = resid; 271 } 272 273 static __inline 274 void ahc_set_sense_residual(struct scb *scb, u_long resid) 275 { 276 scb->xs->resid = resid; 277 } 278 279 static __inline 280 u_long ahc_get_residual(struct scb *scb) 281 { 282 return (scb->xs->resid); 283 } 284 285 static __inline 286 int ahc_perform_autosense(struct scb *scb) 287 { 288 /* Return true for OpenBSD */ 289 return (1); 290 } 291 292 static __inline uint32_t 293 ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) 294 { 295 return (sizeof(struct scsi_sense_data)); 296 } 297 298 static __inline void 299 ahc_freeze_scb(struct scb *scb) 300 { 301 } 302 303 static __inline void 304 ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb) 305 { 306 } 307 308 static __inline int 309 ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, 310 char channel, int lun, u_int tag, 311 role_t role, uint32_t status) 312 { 313 return (0); 314 } 315 316 static __inline void 317 ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) 318 { 319 int s; 320 321 s = splbio(); 322 323 if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0) { 324 ahc->flags &= ~AHC_RESOURCE_SHORTAGE; 325 } 326 327 timeout_del(&scb->xs->stimeout); 328 329 splx(s); 330 } 331 332 /********************************** PCI ***************************************/ 333 #ifdef AHC_PCI_CONFIG 334 static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t, int, int); 335 static __inline void ahc_pci_write_config(ahc_dev_softc_t, int, uint32_t, 336 int); 337 static __inline int ahc_get_pci_function(ahc_dev_softc_t); 338 static __inline int ahc_get_pci_slot(ahc_dev_softc_t); 339 static __inline int ahc_get_pci_bus(ahc_dev_softc_t); 340 341 int ahc_pci_map_registers(struct ahc_softc *); 342 int ahc_pci_map_int(struct ahc_softc *); 343 344 static __inline uint32_t 345 ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width) 346 { 347 return (pci_conf_read(pci->pa_pc, pci->pa_tag, reg)); 348 } 349 350 static __inline void 351 ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width) 352 { 353 pci_conf_write(pci->pa_pc, pci->pa_tag, reg, value); 354 } 355 356 static __inline int 357 ahc_get_pci_function(ahc_dev_softc_t pci) 358 { 359 return (pci->pa_function); 360 } 361 362 static __inline int 363 ahc_get_pci_slot(ahc_dev_softc_t pci) 364 { 365 return (pci->pa_device); 366 } 367 368 static __inline int 369 ahc_get_pci_bus(ahc_dev_softc_t pci) 370 { 371 return (pci->pa_bus); 372 } 373 374 typedef enum 375 { 376 AHC_POWER_STATE_D0, 377 AHC_POWER_STATE_D1, 378 AHC_POWER_STATE_D2, 379 AHC_POWER_STATE_D3 380 } ahc_power_state; 381 382 void ahc_power_state_change(struct ahc_softc *, ahc_power_state); 383 #endif 384 /******************************** VL/EISA *************************************/ 385 int aic7770_map_registers(struct ahc_softc *, u_int); 386 int aic7770_map_int(struct ahc_softc *, int); 387 388 /********************************* Debug **************************************/ 389 static __inline void ahc_print_path(struct ahc_softc *, struct scb *); 390 static __inline void ahc_platform_dump_card_state(struct ahc_softc *); 391 392 static __inline void 393 ahc_print_path(struct ahc_softc *ahc, struct scb *scb) 394 { 395 sc_print_addr(scb->xs->sc_link); 396 } 397 398 static __inline void 399 ahc_platform_dump_card_state(struct ahc_softc *ahc) 400 { 401 /* Nothing to do here for OpenBSD */ 402 printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n", 403 ahc->features, ahc->flags, ahc->chip, ahc->bugs); 404 } 405 /**************************** Transfer Settings *******************************/ 406 void ahc_notify_xfer_settings_change(struct ahc_softc *, 407 struct ahc_devinfo *); 408 void ahc_platform_set_tags(struct ahc_softc *, struct ahc_devinfo *, int); 409 410 /************************* Initialization/Teardown ****************************/ 411 int ahc_platform_alloc(struct ahc_softc *, void *); 412 void ahc_platform_free(struct ahc_softc *); 413 int ahc_map_int(struct ahc_softc *); 414 int ahc_attach(struct ahc_softc *); 415 int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); 416 int ahc_detach(struct device *, int); 417 418 /****************************** Interrupts ************************************/ 419 int ahc_platform_intr(void *); 420 static __inline void ahc_platform_flushwork(struct ahc_softc *); 421 static __inline void 422 ahc_platform_flushwork(struct ahc_softc *ahc) 423 { 424 } 425 426 /************************ Misc Function Declarations **************************/ 427 void ahc_done(struct ahc_softc *, struct scb *); 428 void ahc_send_async(struct ahc_softc *, char, u_int, u_int, ac_code, 429 void *); 430 void *ahc_scb_alloc(void *); 431 void ahc_scb_free(void *, void *); 432 433 #endif /* _AIC7XXX_OPENBSD_H_ */ 434