1/*-
2 * Written by: David Jeffery
3 * Copyright (c) 2002 Adaptec Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD$");
30
31#include <dev/ips/ipsreg.h>
32#include <dev/ips/ips.h>
33
34/*
35 * This is an interrupt callback.  It is called from
36 * interrupt context when the adapter has completed the
37 * command.  This very generic callback simply stores
38 * the command's return value in command->arg and wake's
39 * up anyone waiting on the command.
40 */
41static void ips_wakeup_callback(ips_command_t *command)
42{
43	bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap,
44			BUS_DMASYNC_POSTWRITE);
45	sema_post(&command->sc->cmd_sema);
46}
47/* Below are a series of functions for sending an IO request
48 * to the adapter.  The flow order is: start, send, callback, finish.
49 * The caller must have already assembled an iorequest struct to hold
50 * the details of the IO request. */
51static void ips_io_request_finish(ips_command_t *command)
52{
53
54	struct bio *iobuf = command->arg;
55	if(ips_read_request(iobuf)) {
56		bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
57				BUS_DMASYNC_POSTREAD);
58	} else {
59		bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
60				BUS_DMASYNC_POSTWRITE);
61	}
62	bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
63	if(COMMAND_ERROR(command)){
64		iobuf->bio_flags |=BIO_ERROR;
65		iobuf->bio_error = EIO;
66		printf("ips: io error, status= 0x%x\n", command->status.value);
67	}
68	ips_insert_free_cmd(command->sc, command);
69	ipsd_finish(iobuf);
70}
71
72static void ips_io_request_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error)
73{
74	ips_softc_t *sc;
75	ips_command_t *command = cmdptr;
76	ips_sg_element_t *sg_list;
77	ips_io_cmd *command_struct;
78	struct bio *iobuf = command->arg;
79	int i, length = 0;
80	u_int8_t cmdtype;
81
82	sc = command->sc;
83	if(error){
84		printf("ips: error = %d in ips_sg_request_callback\n", error);
85		bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
86		iobuf->bio_flags |= BIO_ERROR;
87		iobuf->bio_error = ENOMEM;
88		ips_insert_free_cmd(sc, command);
89		ipsd_finish(iobuf);
90		return;
91	}
92	command_struct = (ips_io_cmd *)command->command_buffer;
93	command_struct->id = command->id;
94	command_struct->drivenum = (uintptr_t)iobuf->bio_driver1;
95	if(segnum != 1){
96		if(ips_read_request(iobuf))
97			cmdtype = IPS_SG_READ_CMD;
98		else
99			cmdtype = IPS_SG_WRITE_CMD;
100		command_struct->segnum = segnum;
101		sg_list = (ips_sg_element_t *)((u_int8_t *)
102			   command->command_buffer + IPS_COMMAND_LEN);
103		for(i = 0; i < segnum; i++){
104			sg_list[i].addr = segments[i].ds_addr;
105			sg_list[i].len = segments[i].ds_len;
106			length += segments[i].ds_len;
107		}
108		command_struct->buffaddr =
109	    	    (u_int32_t)command->command_phys_addr + IPS_COMMAND_LEN;
110	} else {
111		if(ips_read_request(iobuf))
112			cmdtype = IPS_READ_CMD;
113		else
114			cmdtype = IPS_WRITE_CMD;
115		command_struct->buffaddr = segments[0].ds_addr;
116		length = segments[0].ds_len;
117	}
118	command_struct->command = cmdtype;
119	command_struct->lba = iobuf->bio_pblkno;
120	length = (length + IPS_BLKSIZE - 1)/IPS_BLKSIZE;
121	command_struct->length = length;
122	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
123			BUS_DMASYNC_PREWRITE);
124	if(ips_read_request(iobuf)) {
125		bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
126				BUS_DMASYNC_PREREAD);
127	} else {
128		bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
129				BUS_DMASYNC_PREWRITE);
130	}
131	PRINTF(10, "ips test: command id: %d segments: %d "
132		"pblkno: %lld length: %d, ds_len: %d\n", command->id, segnum,
133		iobuf->bio_pblkno,
134		length, segments[0].ds_len);
135
136	sc->ips_issue_cmd(command);
137	return;
138}
139
140static int ips_send_io_request(ips_command_t *command, struct bio *iobuf)
141{
142	command->callback = ips_io_request_finish;
143	command->arg = iobuf;
144	PRINTF(10, "ips test: : bcount %ld\n", iobuf->bio_bcount);
145	bus_dmamap_load(command->data_dmatag, command->data_dmamap,
146			iobuf->bio_data, iobuf->bio_bcount,
147			ips_io_request_callback, command, 0);
148	return 0;
149}
150
151void ips_start_io_request(ips_softc_t *sc)
152{
153	struct bio *iobuf;
154	ips_command_t *command;
155
156	iobuf = bioq_first(&sc->queue);
157	if(!iobuf)
158		return;
159
160	if (ips_get_free_cmd(sc, &command, 0))
161		return;
162
163	bioq_remove(&sc->queue, iobuf);
164	ips_send_io_request(command, iobuf);
165	return;
166}
167
168/* Below are a series of functions for sending an adapter info request
169 * to the adapter.  The flow order is: get, send, callback. It uses
170 * the generic finish callback at the top of this file.
171 * This can be used to get configuration/status info from the card */
172static void ips_adapter_info_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error)
173{
174	ips_softc_t *sc;
175	ips_command_t *command = cmdptr;
176	ips_adapter_info_cmd *command_struct;
177	sc = command->sc;
178	if(error){
179		ips_set_error(command, error);
180		printf("ips: error = %d in ips_get_adapter_info\n", error);
181		return;
182	}
183	command_struct = (ips_adapter_info_cmd *)command->command_buffer;
184	command_struct->command = IPS_ADAPTER_INFO_CMD;
185	command_struct->id = command->id;
186	command_struct->buffaddr = segments[0].ds_addr;
187
188	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
189			BUS_DMASYNC_PREWRITE);
190	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
191			BUS_DMASYNC_PREREAD);
192	sc->ips_issue_cmd(command);
193	if (sema_timedwait(&sc->cmd_sema, 30*hz) != 0) {
194		ips_set_error(command, ETIMEDOUT);
195		return;
196	}
197
198	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
199			BUS_DMASYNC_POSTREAD);
200	memcpy(&(sc->adapter_info), command->data_buffer, IPS_ADAPTER_INFO_LEN);
201}
202
203
204
205static int ips_send_adapter_info_cmd(ips_command_t *command)
206{
207	int error = 0;
208	ips_softc_t *sc = command->sc;
209
210	if (bus_dma_tag_create(	/* parent    */	sc->adapter_dmatag,
211				/* alignemnt */	1,
212				/* boundary  */	0,
213				/* lowaddr   */	BUS_SPACE_MAXADDR_32BIT,
214				/* highaddr  */	BUS_SPACE_MAXADDR,
215				/* filter    */	NULL,
216				/* filterarg */	NULL,
217				/* maxsize   */	IPS_ADAPTER_INFO_LEN,
218				/* numsegs   */	1,
219				/* maxsegsize*/	IPS_ADAPTER_INFO_LEN,
220				/* flags     */	0,
221				/* lockfunc  */ NULL,
222				/* lockarg   */ NULL,
223				&command->data_dmatag) != 0) {
224                printf("ips: can't alloc dma tag for adapter status\n");
225		error = ENOMEM;
226		goto exit;
227        }
228	if(bus_dmamem_alloc(command->data_dmatag, &command->data_buffer,
229	   BUS_DMA_NOWAIT, &command->data_dmamap)){
230		error = ENOMEM;
231		goto exit;
232	}
233	command->callback = ips_wakeup_callback;
234	error = bus_dmamap_load(command->data_dmatag, command->data_dmamap,
235				command->data_buffer,IPS_ADAPTER_INFO_LEN,
236				ips_adapter_info_callback, command,
237				BUS_DMA_NOWAIT);
238
239	if (error == 0)
240		bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
241
242exit:
243	/* I suppose I should clean up my memory allocations */
244	bus_dmamem_free(command->data_dmatag, command->data_buffer,
245			command->data_dmamap);
246	bus_dma_tag_destroy(command->data_dmatag);
247	ips_insert_free_cmd(sc, command);
248	return error;
249}
250
251int ips_get_adapter_info(ips_softc_t *sc)
252{
253	ips_command_t *command;
254	int error = 0;
255
256	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG) > 0){
257		device_printf(sc->dev, "unable to get adapter configuration\n");
258		return ENXIO;
259	}
260	ips_send_adapter_info_cmd(command);
261	if (COMMAND_ERROR(command)){
262		error = ENXIO;
263	}
264	return error;
265}
266
267/* Below are a series of functions for sending a drive info request
268 * to the adapter.  The flow order is: get, send, callback. It uses
269 * the generic finish callback at the top of this file.
270 * This can be used to get drive status info from the card */
271static void ips_drive_info_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error)
272{
273	ips_softc_t *sc;
274	ips_command_t *command = cmdptr;
275	ips_drive_cmd *command_struct;
276	ips_drive_info_t *driveinfo;
277
278	sc = command->sc;
279	if(error){
280		ips_set_error(command, error);
281		printf("ips: error = %d in ips_get_drive_info\n", error);
282		return;
283	}
284	command_struct = (ips_drive_cmd *)command->command_buffer;
285	command_struct->command = IPS_DRIVE_INFO_CMD;
286	command_struct->id = command->id;
287	command_struct->buffaddr = segments[0].ds_addr;
288
289	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
290			BUS_DMASYNC_PREWRITE);
291	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
292			BUS_DMASYNC_PREREAD);
293	sc->ips_issue_cmd(command);
294	if (sema_timedwait(&sc->cmd_sema, 10*hz) != 0) {
295		ips_set_error(command, ETIMEDOUT);
296		return;
297	}
298
299	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
300			BUS_DMASYNC_POSTREAD);
301	driveinfo = command->data_buffer;
302	memcpy(sc->drives, driveinfo->drives, sizeof(ips_drive_t) * 8);
303	sc->drivecount = driveinfo->drivecount;
304	device_printf(sc->dev, "logical drives: %d\n",sc->drivecount);
305}
306
307static int ips_send_drive_info_cmd(ips_command_t *command)
308{
309	int error = 0;
310	ips_softc_t *sc = command->sc;
311
312	if (bus_dma_tag_create(	/* parent    */	sc->adapter_dmatag,
313				/* alignemnt */	1,
314				/* boundary  */	0,
315				/* lowaddr   */	BUS_SPACE_MAXADDR_32BIT,
316				/* highaddr  */	BUS_SPACE_MAXADDR,
317				/* filter    */	NULL,
318				/* filterarg */	NULL,
319				/* maxsize   */	IPS_DRIVE_INFO_LEN,
320				/* numsegs   */	1,
321				/* maxsegsize*/	IPS_DRIVE_INFO_LEN,
322				/* flags     */	0,
323				/* lockfunc  */ NULL,
324				/* lockarg   */ NULL,
325				&command->data_dmatag) != 0) {
326                printf("ips: can't alloc dma tag for drive status\n");
327		error = ENOMEM;
328		goto exit;
329        }
330	if(bus_dmamem_alloc(command->data_dmatag, &command->data_buffer,
331	   		    BUS_DMA_NOWAIT, &command->data_dmamap)){
332		error = ENOMEM;
333		goto exit;
334	}
335	command->callback = ips_wakeup_callback;
336	error = bus_dmamap_load(command->data_dmatag, command->data_dmamap,
337				command->data_buffer,IPS_DRIVE_INFO_LEN,
338				ips_drive_info_callback, command,
339				BUS_DMA_NOWAIT);
340	if (error == 0)
341		bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
342
343exit:
344	/* I suppose I should clean up my memory allocations */
345	bus_dmamem_free(command->data_dmatag, command->data_buffer,
346			command->data_dmamap);
347	bus_dma_tag_destroy(command->data_dmatag);
348	ips_insert_free_cmd(sc, command);
349	return error;
350
351}
352int ips_get_drive_info(ips_softc_t *sc)
353{
354	int error = 0;
355	ips_command_t *command;
356
357	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG) > 0){
358		device_printf(sc->dev, "unable to get drive configuration\n");
359		return ENXIO;
360	}
361	ips_send_drive_info_cmd(command);
362	if(COMMAND_ERROR(command)){
363		error = ENXIO;
364	}
365	return error;
366}
367
368/* Below is a pair of functions for making sure data is safely
369 * on disk by flushing the adapter's cache. */
370static int ips_send_flush_cache_cmd(ips_command_t *command)
371{
372	ips_softc_t *sc = command->sc;
373	ips_generic_cmd *command_struct;
374
375	PRINTF(10,"ips test: got a command, building flush command\n");
376	command->callback = ips_wakeup_callback;
377	command_struct = (ips_generic_cmd *)command->command_buffer;
378	command_struct->command = IPS_CACHE_FLUSH_CMD;
379	command_struct->id = command->id;
380	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
381			BUS_DMASYNC_PREWRITE);
382	sc->ips_issue_cmd(command);
383	if (COMMAND_ERROR(command) == 0)
384		sema_wait(&sc->cmd_sema);
385	ips_insert_free_cmd(sc, command);
386	return 0;
387}
388
389int ips_flush_cache(ips_softc_t *sc)
390{
391	ips_command_t *command;
392
393	device_printf(sc->dev, "flushing cache\n");
394	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
395		device_printf(sc->dev, "ERROR: unable to get a command! can't flush cache!\n");
396	}
397	ips_send_flush_cache_cmd(command);
398	if(COMMAND_ERROR(command)){
399		device_printf(sc->dev, "ERROR: cache flush command failed!\n");
400	}
401	return 0;
402}
403
404/* Simplified localtime to provide timevalues for ffdc.
405 * Taken from libc/stdtime/localtime.c
406 */
407void static ips_ffdc_settime(ips_adapter_ffdc_cmd *command, time_t sctime)
408{
409	long	days, rem, y;
410	int	yleap, *ip, month;
411	int	year_lengths[2] = { IPS_DAYSPERNYEAR, IPS_DAYSPERLYEAR };
412	int	mon_lengths[2][IPS_MONSPERYEAR] = {
413		{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
414		{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
415	};
416
417	days = sctime / IPS_SECSPERDAY;
418	rem  = sctime % IPS_SECSPERDAY;
419
420	command->hour = rem / IPS_SECSPERHOUR;
421	rem           = rem % IPS_SECSPERHOUR;
422
423	command->minute = rem / IPS_SECSPERMIN;
424	command->second = rem % IPS_SECSPERMIN;
425
426	y = IPS_EPOCH_YEAR;
427	while (days < 0 || days >= (long) year_lengths[yleap = ips_isleap(y)]) {
428		long    newy;
429
430		newy = y + days / IPS_DAYSPERNYEAR;
431		if (days < 0)
432			--newy;
433		days -= (newy - y) * IPS_DAYSPERNYEAR +
434			IPS_LEAPS_THRU_END_OF(newy - 1) -
435			IPS_LEAPS_THRU_END_OF(y - 1);
436		y = newy;
437	}
438	command->yearH = y / 100;
439	command->yearL = y % 100;
440	ip = mon_lengths[yleap];
441	for(month = 0; days >= (long) ip[month]; ++month)
442		days = days - (long) ip[month];
443	command->month = month + 1;
444	command->day = days + 1;
445}
446
447static int ips_send_ffdc_reset_cmd(ips_command_t *command)
448{
449	ips_softc_t *sc = command->sc;
450	ips_adapter_ffdc_cmd *command_struct;
451
452	PRINTF(10,"ips test: got a command, building ffdc reset command\n");
453	command->callback = ips_wakeup_callback;
454	command_struct = (ips_adapter_ffdc_cmd *)command->command_buffer;
455	command_struct->command = IPS_FFDC_CMD;
456	command_struct->id = command->id;
457	command_struct->reset_count = sc->ffdc_resetcount;
458	command_struct->reset_type  = 0x0;
459	ips_ffdc_settime(command_struct, sc->ffdc_resettime.tv_sec);
460
461	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
462			BUS_DMASYNC_PREWRITE);
463	sc->ips_issue_cmd(command);
464	if (COMMAND_ERROR(command) == 0)
465		sema_wait(&sc->cmd_sema);
466	ips_insert_free_cmd(sc, command);
467	return 0;
468}
469
470int ips_ffdc_reset(ips_softc_t *sc)
471{
472	ips_command_t *command;
473
474	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
475		device_printf(sc->dev, "ERROR: unable to get a command! can't send ffdc reset!\n");
476	}
477	ips_send_ffdc_reset_cmd(command);
478	if(COMMAND_ERROR(command)){
479		device_printf(sc->dev, "ERROR: ffdc reset command failed!\n");
480	}
481	return 0;
482}
483
484static void ips_write_nvram(ips_command_t *command){
485	ips_softc_t *sc = command->sc;
486	ips_rw_nvram_cmd *command_struct;
487	ips_nvram_page5 *nvram;
488
489	/*FIXME check for error */
490	command->callback = ips_wakeup_callback;
491	command_struct = (ips_rw_nvram_cmd *)command->command_buffer;
492	command_struct->command = IPS_RW_NVRAM_CMD;
493	command_struct->id = command->id;
494	command_struct->pagenum = 5;
495	command_struct->rw	= 1; /*write*/
496	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
497				BUS_DMASYNC_POSTREAD);
498	nvram = command->data_buffer;
499	/* retrieve adapter info and save in sc */
500	sc->adapter_type = nvram->adapter_type;
501
502	strncpy(nvram->driver_high, IPS_VERSION_MAJOR, 4);
503	strncpy(nvram->driver_low, IPS_VERSION_MINOR, 4);
504	nvram->operating_system = IPS_OS_FREEBSD;
505	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
506			BUS_DMASYNC_PREWRITE);
507	sc->ips_issue_cmd(command);
508}
509
510static void ips_read_nvram_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error)
511{
512	ips_softc_t *sc;
513	ips_command_t *command = cmdptr;
514	ips_rw_nvram_cmd *command_struct;
515	sc = command->sc;
516	if(error){
517		ips_set_error(command, error);
518		printf("ips: error = %d in ips_read_nvram_callback\n", error);
519		return;
520	}
521	command_struct = (ips_rw_nvram_cmd *)command->command_buffer;
522	command_struct->command = IPS_RW_NVRAM_CMD;
523	command_struct->id = command->id;
524	command_struct->pagenum = 5;
525	command_struct->rw = 0;
526	command_struct->buffaddr = segments[0].ds_addr;
527
528	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
529			BUS_DMASYNC_PREWRITE);
530	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
531			BUS_DMASYNC_PREREAD);
532	sc->ips_issue_cmd(command);
533	if (sema_timedwait(&sc->cmd_sema, 30*hz) != 0) {
534		ips_set_error(command, ETIMEDOUT);
535		return;
536	}
537	bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
538			BUS_DMASYNC_POSTWRITE);
539}
540
541static int ips_read_nvram(ips_command_t *command)
542{
543	int error = 0;
544	ips_softc_t *sc = command->sc;
545
546	if (bus_dma_tag_create(	/* parent    */	sc->adapter_dmatag,
547				/* alignemnt */	1,
548				/* boundary  */	0,
549				/* lowaddr   */	BUS_SPACE_MAXADDR_32BIT,
550				/* highaddr  */	BUS_SPACE_MAXADDR,
551				/* filter    */	NULL,
552				/* filterarg */	NULL,
553				/* maxsize   */	IPS_NVRAM_PAGE_SIZE,
554				/* numsegs   */	1,
555				/* maxsegsize*/	IPS_NVRAM_PAGE_SIZE,
556				/* flags     */	0,
557				/* lockfunc  */ NULL,
558				/* lockarg   */ NULL,
559				&command->data_dmatag) != 0) {
560                printf("ips: can't alloc dma tag for nvram\n");
561		error = ENOMEM;
562		goto exit;
563        }
564	if(bus_dmamem_alloc(command->data_dmatag, &command->data_buffer,
565	   		    BUS_DMA_NOWAIT, &command->data_dmamap)){
566		error = ENOMEM;
567		goto exit;
568	}
569	command->callback = ips_write_nvram;
570	error = bus_dmamap_load(command->data_dmatag, command->data_dmamap,
571				command->data_buffer,IPS_NVRAM_PAGE_SIZE,
572				ips_read_nvram_callback, command,
573				BUS_DMA_NOWAIT);
574	if (error == 0)
575		bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
576
577exit:
578	bus_dmamem_free(command->data_dmatag, command->data_buffer,
579			command->data_dmamap);
580	bus_dma_tag_destroy(command->data_dmatag);
581	ips_insert_free_cmd(sc, command);
582	return error;
583}
584
585int ips_update_nvram(ips_softc_t *sc)
586{
587	ips_command_t *command;
588
589	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
590		device_printf(sc->dev, "ERROR: unable to get a command! can't update nvram\n");
591		return 1;
592	}
593	ips_read_nvram(command);
594	if(COMMAND_ERROR(command)){
595		device_printf(sc->dev, "ERROR: nvram update command failed!\n");
596	}
597	return 0;
598
599
600}
601
602
603static int ips_send_config_sync_cmd(ips_command_t *command)
604{
605	ips_softc_t *sc = command->sc;
606	ips_generic_cmd *command_struct;
607
608	PRINTF(10,"ips test: got a command, building flush command\n");
609	command->callback = ips_wakeup_callback;
610	command_struct = (ips_generic_cmd *)command->command_buffer;
611	command_struct->command = IPS_CONFIG_SYNC_CMD;
612	command_struct->id = command->id;
613	command_struct->reserve2 = IPS_POCL;
614	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
615			BUS_DMASYNC_PREWRITE);
616	sc->ips_issue_cmd(command);
617	if (COMMAND_ERROR(command) == 0)
618		sema_wait(&sc->cmd_sema);
619	ips_insert_free_cmd(sc, command);
620	return 0;
621}
622
623static int ips_send_error_table_cmd(ips_command_t *command)
624{
625	ips_softc_t *sc = command->sc;
626	ips_generic_cmd *command_struct;
627
628	PRINTF(10,"ips test: got a command, building errortable command\n");
629	command->callback = ips_wakeup_callback;
630	command_struct = (ips_generic_cmd *)command->command_buffer;
631	command_struct->command = IPS_ERROR_TABLE_CMD;
632	command_struct->id = command->id;
633	command_struct->reserve2 = IPS_CSL;
634	bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
635			BUS_DMASYNC_PREWRITE);
636	sc->ips_issue_cmd(command);
637	if (COMMAND_ERROR(command) == 0)
638		sema_wait(&sc->cmd_sema);
639	ips_insert_free_cmd(sc, command);
640	return 0;
641}
642
643
644int ips_clear_adapter(ips_softc_t *sc)
645{
646	ips_command_t *command;
647
648	device_printf(sc->dev, "syncing config\n");
649	if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
650		device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
651		return 1;
652	}
653	ips_send_config_sync_cmd(command);
654	if(COMMAND_ERROR(command)){
655		device_printf(sc->dev, "ERROR: cache sync command failed!\n");
656		return 1;
657	}
658
659	device_printf(sc->dev, "clearing error table\n");
660	if(ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
661		device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
662		return 1;
663	}
664	ips_send_error_table_cmd(command);
665	if(COMMAND_ERROR(command)){
666		device_printf(sc->dev, "ERROR: etable command failed!\n");
667		return 1;
668	}
669
670	return 0;
671}
672