1 /* $NetBSD: aic79xx_osm.h,v 1.16 2008/06/24 10:07:40 gmcgarry Exp $ */
2
3 /*
4 * NetBSD platform specific driver option settings, data structures,
5 * function declarations and includes.
6 *
7 * Copyright (c) 1994-2001 Justin T. Gibbs.
8 * Copyright (c) 2001-2002 Adaptec Inc.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU Public License ("GPL").
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $NetBSD: aic79xx_osm.h,v 1.16 2008/06/24 10:07:40 gmcgarry Exp $
36 *
37 * //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.h#19 $$NetBSD: aic79xx_osm.h,v 1.16 2008/06/24 10:07:40 gmcgarry Exp $
38 *
39 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.h,v 1.9 2003/05/26 21:43:29 gibbs Exp $
40 */
41 /*
42 * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc.
43 * - April 2003
44 */
45
46 #ifndef _AIC79XX_NETBSD_H_
47 #define _AIC79XX_NETBSD_H_
48
49 #include "opt_ahd.h" /* for config options */
50
51 #include <sys/param.h>
52 #include <sys/kernel.h>
53 #include <sys/systm.h>
54 #include <sys/device.h>
55 #include <sys/malloc.h>
56 #include <sys/buf.h>
57 #include <sys/proc.h>
58 #include <sys/scsiio.h>
59 #include <sys/reboot.h>
60 #include <sys/kthread.h>
61
62 #include <dev/pci/pcireg.h>
63 #include <dev/pci/pcivar.h>
64
65 #include <sys/bus.h>
66 #include <sys/intr.h>
67
68 #include <dev/scsipi/scsi_all.h>
69 #include <dev/scsipi/scsipi_all.h>
70 #include <dev/scsipi/scsi_message.h>
71 #include <dev/scsipi/scsipi_debug.h>
72 #include <dev/scsipi/scsiconf.h>
73 #include <dev/scsipi/scsi_iu.h>
74
75 #include <uvm/uvm_extern.h>
76
77 #include <dev/ic/aic7xxx_cam.h>
78
79 /****************************** Platform Macros *******************************/
80 #define SIM_IS_SCSIBUS_B(ahd, sim) \
81 (0)
82 #define SIM_CHANNEL(ahd, sim) \
83 ('A')
84 #define SIM_SCSI_ID(ahd, sim) \
85 (ahd->our_id)
86 #define SIM_PATH(ahd, sim) \
87 (ahd->platform_data->path)
88 #define BUILD_SCSIID(ahd, sim, target_id, our_id) \
89 ((((target_id) << TID_SHIFT) & TID) | (our_id))
90
91
92 #define SCB_GET_SIM(ahd, scb) \
93 ((ahd)->platform_data->sim)
94
95 #ifndef offsetof
96 #define offsetof(type, member) ((size_t)(&((type *)0)->member))
97 #endif
98
99 /************************* Forward Declarations *******************************/
100 typedef pcireg_t ahd_dev_softc_t;
101 /***************************** Bus Space/DMA **********************************/
102 #define ahd_dma_tag_create(ahd, parent_tag, alignment, boundary, \
103 lowaddr, highaddr, filter, filterarg, \
104 maxsize, nsegments, maxsegsz, flags, \
105 dma_tagp) \
106 bus_dma_tag_create(parent_tag, alignment, boundary, \
107 lowaddr, highaddr, filter, filterarg, \
108 maxsize, nsegments, maxsegsz, flags, \
109 dma_tagp)
110
111 #define ahd_dma_tag_destroy(ahd, tag) \
112 bus_dma_tag_destroy(tag)
113
114 #define ahd_dmamem_alloc(ahd, dmat, vaddr, flags, mapp) \
115 bus_dmamem_alloc(dmat, vaddr, flags, mapp)
116
117 #define ahd_dmamem_free(ahd, dmat, vaddr, map) \
118 bus_dmamem_free(dmat, vaddr, map)
119
120 #define ahd_dmamap_create(ahd, tag, flags, mapp) \
121 bus_dmamap_create(tag, flags, mapp)
122
123 #define ahd_dmamap_destroy(ahd, tag, map) \
124 bus_dmamap_destroy(tag, map)
125
126 #define ahd_dmamap_load(ahd, dmat, map, addr, buflen, callback, \
127 callback_arg, flags) \
128 bus_dmamap_load(dmat, map, addr, buflen, callback, callback_arg, flags)
129
130 #define ahd_dmamap_unload(ahd, tag, map) \
131 bus_dmamap_unload(tag, map)
132
133 /* XXX Need to update Bus DMA for partial map syncs */
134 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op) \
135 bus_dmamap_sync(dma_tag, dmamap, offset, len, op)
136
137 /************************ Tunable Driver Parameters **************************/
138 /*
139 * The number of DMA segments supported. The sequencer can handle any number
140 * of physically contiguous S/G entrys. To reduce the driver's memory
141 * consumption, we limit the number supported to be sufficient to handle
142 * the largest mapping supported by the kernel, MAXPHYS. Assuming the
143 * transfer is as fragmented as possible and unaligned, this turns out to
144 * be the number of paged sized transfers in MAXPHYS plus an extra element
145 * to handle any unaligned residual. The sequencer fetches SG elements
146 * in cacheline sized chucks, so make the number per-transaction an even
147 * multiple of 16 which should align us on even the largest of cacheline
148 * boundaries.
149 */
150 #define AHD_NSEG (roundup(btoc(MAXPHYS) + 1, 16))
151
152 /* This driver supports target mode */
153 #if NOT_YET
154 #define AHD_TARGET_MODE 1
155 #endif
156
157 /************************** Softc/SCB Platform Data ***************************/
158 struct ahd_platform_data {
159 };
160
161 struct scb_platform_data {
162 };
163
164 /********************************* Byte Order *********************************/
165 #define ahd_htobe16(x) htobe16(x)
166 #define ahd_htobe32(x) htobe32(x)
167 #define ahd_htobe64(x) htobe64(x)
168 #define ahd_htole16(x) htole16(x)
169 #define ahd_htole32(x) htole32(x)
170 #define ahd_htole64(x) htole64(x)
171
172 #define ahd_be16toh(x) be16toh(x)
173 #define ahd_be32toh(x) be32toh(x)
174 #define ahd_be64toh(x) be64toh(x)
175 #define ahd_le16toh(x) le16toh(x)
176 #define ahd_le32toh(x) le32toh(x)
177 #define ahd_le64toh(x) le64toh(x)
178
179 /************************** Timer DataStructures ******************************/
180 typedef struct callout ahd_timer_t;
181
182 /***************************** Core Includes **********************************/
183 #if AHD_REG_PRETTY_PRINT
184 #define AIC_DEBUG_REGISTERS 1
185 #else
186 #define AIC_DEBUG_REGISTERS 0
187 #endif
188 #include <dev/ic/aic79xxvar.h>
189
190 /***************************** Timer Facilities *******************************/
191 void ahd_timeout(void*);
192 #define ahd_timer_init(timer) callout_init(timer, 0)
193 #define ahd_timer_stop callout_stop
194
195 static __inline void
196 ahd_timer_reset(ahd_timer_t *timer, u_int usec, ahd_callback_t *func, void *arg)
197 {
198 callout_reset(timer, (usec * hz)/1000000, func, arg);
199 }
200
201 static __inline void
202 ahd_scb_timer_reset(struct scb *scb, u_int usec)
203 {
204 if (!(scb->xs->xs_control & XS_CTL_POLL)) {
205 callout_reset(&scb->xs->xs_callout,
206 (usec * hz)/1000000, ahd_timeout, scb);
207 }
208 }
209
210 /*************************** Device Access ************************************/
211 #define ahd_inb(ahd, port) \
212 bus_space_read_1((ahd)->tags[(port) >> 8], \
213 (ahd)->bshs[(port) >> 8], (port) & 0xFF)
214
215 #define ahd_outb(ahd, port, value) \
216 bus_space_write_1((ahd)->tags[(port) >> 8], \
217 (ahd)->bshs[(port) >> 8], (port) & 0xFF, value)
218
219 #define ahd_inw_atomic(ahd, port) \
220 ahd_le16toh(bus_space_read_2((ahd)->tags[(port) >> 8], \
221 (ahd)->bshs[(port) >> 8], (port) & 0xFF))
222
223 #define ahd_outw_atomic(ahd, port, value) \
224 bus_space_write_2((ahd)->tags[(port) >> 8], \
225 (ahd)->bshs[(port) >> 8], \
226 (port & 0xFF), ahd_htole16(value))
227
228 #define ahd_outsb(ahd, port, valp, count) \
229 bus_space_write_multi_1((ahd)->tags[(port) >> 8], \
230 (ahd)->bshs[(port) >> 8], \
231 (port & 0xFF), valp, count)
232
233 #define ahd_insb(ahd, port, valp, count) \
234 bus_space_read_multi_1((ahd)->tags[(port) >> 8], \
235 (ahd)->bshs[(port) >> 8], \
236 (port & 0xFF), valp, count)
237
238 static __inline void ahd_flush_device_writes(struct ahd_softc *);
239
240 static __inline void
241 ahd_flush_device_writes(struct ahd_softc *ahd)
242 {
243 /* XXX Is this sufficient for all architectures??? */
244 ahd_inb(ahd, INTSTAT);
245 }
246
247 /**************************** Locking Primitives ******************************/
248 /* Lock protecting internal data structures */
249 static __inline void ahd_lockinit(struct ahd_softc *);
250 static __inline void ahd_lock(struct ahd_softc *, int *);
251 static __inline void ahd_unlock(struct ahd_softc *, int *);
252
253 /* Lock held during command completion to the upper layer */
254 static __inline void ahd_done_lockinit(struct ahd_softc *);
255 static __inline void ahd_done_lock(struct ahd_softc *, unsigned long *);
256 static __inline void ahd_done_unlock(struct ahd_softc *, unsigned long *);
257
258 /* Lock held during ahd_list manipulation and ahd softc frees */
259 static __inline void ahd_list_lockinit(void);
260 static __inline void ahd_list_lock(unsigned long *);
261 static __inline void ahd_list_unlock(unsigned long *);
262
263 static __inline void
264 ahd_lockinit(struct ahd_softc *ahd)
265 {
266 }
267
268 static __inline void
269 ahd_lock(struct ahd_softc *ahd, int *flags)
270 {
271 *flags = splbio();
272 }
273
274 static __inline void
275 ahd_unlock(struct ahd_softc *ahd, int *flags)
276 {
277 splx(*flags);
278 }
279
280 /* Lock held during command completion to the upper layer */
281 static __inline void
282 ahd_done_lockinit(struct ahd_softc *ahd)
283 {
284 }
285
286 static __inline void
287 ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags)
288 {
289 }
290
291 static __inline void
292 ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
293 {
294 }
295
296 /* Lock held during ahd_list manipulation and ahd softc frees */
297 static __inline void
298 ahd_list_lockinit(void)
299 {
300 }
301
302 static __inline void
303 ahd_list_lock(unsigned long *flags)
304 {
305 }
306
307 static __inline void
308 ahd_list_unlock(unsigned long *flags)
309 {
310 }
311 /****************************** OS Primitives *********************************/
312 #define ahd_delay DELAY
313
314 /************************** Transaction Operations ****************************/
315 static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
316 static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
317 static __inline void ahd_set_xfer_status(struct scb *, uint32_t);
318 static __inline uint32_t ahd_get_transaction_status(struct scb *);
319 static __inline uint32_t ahd_get_scsi_status(struct scb *);
320 static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
321 static __inline u_long ahd_get_transfer_length(struct scb *);
322 static __inline int ahd_get_transfer_dir(struct scb *);
323 static __inline void ahd_set_residual(struct scb *, u_long);
324 static __inline void ahd_set_sense_residual(struct scb *, u_long);
325 static __inline u_long ahd_get_residual(struct scb *);
326 static __inline int ahd_perform_autosense(struct scb *);
327 static __inline uint32_t ahd_get_sense_bufsize(struct ahd_softc*, struct scb*);
328 static __inline void ahd_freeze_simq(struct ahd_softc *);
329 static __inline void ahd_release_simq(struct ahd_softc *);
330 static __inline void ahd_freeze_scb(struct scb *);
331 static __inline void ahd_platform_freeze_devq(struct ahd_softc *, struct scb *);
332 static __inline int ahd_platform_abort_scbs(struct ahd_softc *, int,
333 char, int, u_int, role_t, uint32_t);
334
335 static __inline
336 void ahd_set_transaction_status(struct scb *scb, uint32_t status)
337 {
338 scb->xs->error = status;
339 }
340
341 static __inline
342 void ahd_set_scsi_status(struct scb *scb, uint32_t status)
343 {
344 scb->xs->xs_status = status;
345 }
346
347 static __inline
348 void ahd_set_xfer_status(struct scb *scb, uint32_t status)
349 {
350 scb->xs->status = status;
351 }
352
353 static __inline
354 uint32_t ahd_get_transaction_status(struct scb *scb)
355 {
356 return (scb->xs->error);
357 }
358
359 static __inline
360 uint32_t ahd_get_scsi_status(struct scb *scb)
361 {
362 return (scb->xs->xs_status);
363 }
364
365 static __inline
366 void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
367 {
368 scb->xs->xs_tag_type = type;
369 }
370
371 static __inline
372 u_long ahd_get_transfer_length(struct scb *scb)
373 {
374 return (scb->xs->datalen);
375 }
376
377 static __inline
378 int ahd_get_transfer_dir(struct scb *scb)
379 {
380 return (scb->xs->xs_control & (XS_CTL_DATA_IN|XS_CTL_DATA_OUT));
381 }
382
383 static __inline
384 void ahd_set_residual(struct scb *scb, u_long resid)
385 {
386 scb->xs->resid = resid;
387 }
388
389
390 static __inline
391 void ahd_set_sense_residual(struct scb *scb, u_long resid)
392 {
393 //scb->xs->sense.scsi_sense.extra_len = resid; /* ??? */
394 }
395
396
397 static __inline
398 u_long ahd_get_residual(struct scb *scb)
399 {
400 return (scb->xs->resid);
401 }
402
403 static __inline
404 int ahd_perform_autosense(struct scb *scb)
405 {
406 return (!(scb->flags & SCB_SENSE));
407 }
408
409 static __inline uint32_t
410 ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
411 {
412 return (sizeof(struct scsi_sense_data));
413 }
414
415 static __inline void
416 ahd_freeze_simq(struct ahd_softc *ahd)
417 {
418 /* do nothing for now */
419 }
420
421 static __inline void
422 ahd_release_simq(struct ahd_softc *ahd)
423 {
424 /* do nothing for now */
425 }
426
427 static __inline void
428 ahd_freeze_scb(struct scb *scb)
429 {
430 struct scsipi_xfer *xs = scb->xs;
431
432 if (!(scb->flags & SCB_FREEZE_QUEUE)) {
433 scsipi_periph_freeze(xs->xs_periph, 1);
434 scb->flags |= SCB_FREEZE_QUEUE;
435 }
436 }
437
438 static __inline void
439 ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
440 {
441 /* Nothing to do here for NetBSD */
442 }
443
444 static __inline int
445 ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
446 char channel, int lun, u_int tag,
447 role_t role, uint32_t status)
448 {
449 /* Nothing to do here for NetBSD */
450 return (0);
451 }
452
453 static __inline void
454 ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
455 {
456 #ifdef __FreeBSD__
457 /* What do we do to generically handle driver resource shortages??? */
458 if ((ahd->flags & AHD_RESOURCE_SHORTAGE) != 0
459 && scb->io_ctx != NULL
460 && (scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
461 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ;
462 ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
463 }
464 scb->io_ctx = NULL;
465 #endif /* end of modification */
466 }
467
468 /********************************** PCI ***************************************/
469 #if AHD_PCI_CONFIG > 0
470 static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t, int, int);
471 static __inline void ahd_pci_write_config(ahd_dev_softc_t, int,
472 uint32_t, int);
473 static __inline int ahd_get_pci_function(ahd_dev_softc_t);
474 static __inline int ahd_get_pci_slot(ahd_dev_softc_t);
475 static __inline int ahd_get_pci_bus(ahd_dev_softc_t);
476
477 int ahd_pci_map_registers(struct ahd_softc *);
478 int ahd_pci_map_int(struct ahd_softc *);
479
480 static __inline uint32_t
481 ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
482 {
483 return (pci_read_config(pci, reg, width));
484 }
485
486 static __inline void
487 ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
488 {
489 pci_write_config(pci, reg, value, width);
490 }
491
492 static __inline int
493 ahd_get_pci_function(ahd_dev_softc_t pci)
494 {
495 return (pci_get_function(pci));
496 }
497
498 static __inline int
499 ahd_get_pci_slot(ahd_dev_softc_t pci)
500 {
501 return (pci_get_slot(pci));
502 }
503
504
505 static __inline int
506 ahd_get_pci_bus(ahd_dev_softc_t pci)
507 {
508 return (pci_get_bus(pci));
509 }
510 #endif
511
512 typedef enum
513 {
514 AHD_POWER_STATE_D0,
515 AHD_POWER_STATE_D1,
516 AHD_POWER_STATE_D2,
517 AHD_POWER_STATE_D3
518 } ahd_power_state;
519
520 void ahd_power_state_change(struct ahd_softc *, ahd_power_state);
521
522 /******************************** VL/EISA *************************************/
523 int aic7770_map_registers(struct ahd_softc *);
524 int aic7770_map_int(struct ahd_softc *, int);
525
526 /********************************* Debug **************************************/
527 static __inline void ahd_print_path(struct ahd_softc *, struct scb *);
528 static __inline void ahd_platform_dump_card_state(struct ahd_softc *);
529 static __inline void
530 ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
531 {
532 printf("%s:", device_xname(&ahd->sc_dev));
533 }
534
535 static __inline void
536 ahd_platform_dump_card_state(struct ahd_softc *ahd)
537 {
538 /* Nothing to do here for NetBSD */
539 }
540 /**************************** Transfer Settings *******************************/
541 void ahd_notify_xfer_settings_change(struct ahd_softc *,
542 struct ahd_devinfo *);
543 void ahd_platform_set_tags(struct ahd_softc *, struct ahd_devinfo *,
544 ahd_queue_alg);
545
546 /************************* Initialization/Teardown ****************************/
547 int ahd_platform_alloc(struct ahd_softc *, void *);
548 void ahd_platform_free(struct ahd_softc *);
549 int ahd_map_int(struct ahd_softc *);
550 int ahd_attach(struct ahd_softc *);
551 int ahd_softc_comp(struct ahd_softc *, struct ahd_softc *);
552 int ahd_detach(struct device *, int);
553 #define ahd_platform_init(arg)
554
555
556 /****************************** Interrupts ************************************/
557 void ahd_platform_intr(void *);
558 static __inline void ahd_platform_flushwork(struct ahd_softc *);
559 static __inline void
560 ahd_platform_flushwork(struct ahd_softc *ahd)
561 {
562 /* Nothing to do here for NetBSD */
563 }
564
565 /************************ Misc Function Declarations **************************/
566 void ahd_done(struct ahd_softc *, struct scb *);
567 void ahd_send_async(struct ahd_softc *, char, u_int, u_int, ac_code, void *);
568
569 #endif /* _AIC79XX_NETBSD_H_ */
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