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238#include <linux/module.h>
239#include <asm/irq.h>
240#include <linux/io.h>
241#include <linux/blkdev.h>
242#include <asm/system.h>
243#include <linux/completion.h>
244#include <linux/errno.h>
245#include <linux/string.h>
246#include <linux/wait.h>
247#include <linux/ioport.h>
248#include <linux/delay.h>
249#include <linux/proc_fs.h>
250#include <linux/interrupt.h>
251#include <linux/init.h>
252#include <linux/kernel.h>
253#include <linux/isapnp.h>
254#include <linux/spinlock.h>
255#include <linux/workqueue.h>
256#include <linux/list.h>
257#include <scsi/scsicam.h>
258
259#include "scsi.h"
260#include <scsi/scsi_dbg.h>
261#include <scsi/scsi_host.h>
262#include <scsi/scsi_transport_spi.h>
263#include <scsi/scsi_eh.h>
264#include "aha152x.h"
265
266static LIST_HEAD(aha152x_host_list);
267
268
269
270
271
272#if defined(PCMCIA) || defined(MODULE)
273#if !defined(AUTOCONF)
274#define AUTOCONF
275#endif
276#endif
277
278#if !defined(AUTOCONF) && !defined(SETUP0)
279#error define AUTOCONF or SETUP0
280#endif
281
282#if defined(AHA152X_DEBUG)
283#define DEBUG_DEFAULT debug_eh
284
285#define DPRINTK(when,msgs...) \
286 do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0)
287
288#define DO_LOCK(flags) \
289 do { \
290 if(spin_is_locked(&QLOCK)) { \
291 DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
292 } \
293 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
294 spin_lock_irqsave(&QLOCK,flags); \
295 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
296 QLOCKER=__func__; \
297 QLOCKERL=__LINE__; \
298 } while(0)
299
300#define DO_UNLOCK(flags) \
301 do { \
302 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
303 spin_unlock_irqrestore(&QLOCK,flags); \
304 DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
305 QLOCKER="(not locked)"; \
306 QLOCKERL=0; \
307 } while(0)
308
309#else
310#define DPRINTK(when,msgs...)
311#define DO_LOCK(flags) spin_lock_irqsave(&QLOCK,flags)
312#define DO_UNLOCK(flags) spin_unlock_irqrestore(&QLOCK,flags)
313#endif
314
315#define LEAD "(scsi%d:%d:%d) "
316#define WARN_LEAD KERN_WARNING LEAD
317#define INFO_LEAD KERN_INFO LEAD
318#define NOTE_LEAD KERN_NOTICE LEAD
319#define ERR_LEAD KERN_ERR LEAD
320#define DEBUG_LEAD KERN_DEBUG LEAD
321#define CMDINFO(cmd) \
322 (cmd) ? ((cmd)->device->host->host_no) : -1, \
323 (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
324 (cmd) ? ((cmd)->device->lun & 0x07) : -1
325
326static inline void
327CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
328{
329 scsi_set_resid(cmd, scsi_get_resid(cmd) + inc);
330}
331
332#define DELAY_DEFAULT 1000
333
334#if defined(PCMCIA)
335#define IRQ_MIN 0
336#define IRQ_MAX 16
337#else
338#define IRQ_MIN 9
339#if defined(__PPC)
340#define IRQ_MAX (nr_irqs-1)
341#else
342#define IRQ_MAX 12
343#endif
344#endif
345
346enum {
347 not_issued = 0x0001,
348 selecting = 0x0002,
349 identified = 0x0004,
350 disconnected = 0x0008,
351 completed = 0x0010,
352 aborted = 0x0020,
353 resetted = 0x0040,
354 spiordy = 0x0080,
355 syncneg = 0x0100,
356 aborting = 0x0200,
357 resetting = 0x0400,
358 check_condition = 0x0800,
359};
360
361MODULE_AUTHOR("Jürgen Fischer");
362MODULE_DESCRIPTION(AHA152X_REVID);
363MODULE_LICENSE("GPL");
364
365#if !defined(PCMCIA)
366#if defined(MODULE)
367static int io[] = {0, 0};
368module_param_array(io, int, NULL, 0);
369MODULE_PARM_DESC(io,"base io address of controller");
370
371static int irq[] = {0, 0};
372module_param_array(irq, int, NULL, 0);
373MODULE_PARM_DESC(irq,"interrupt for controller");
374
375static int scsiid[] = {7, 7};
376module_param_array(scsiid, int, NULL, 0);
377MODULE_PARM_DESC(scsiid,"scsi id of controller");
378
379static int reconnect[] = {1, 1};
380module_param_array(reconnect, int, NULL, 0);
381MODULE_PARM_DESC(reconnect,"allow targets to disconnect");
382
383static int parity[] = {1, 1};
384module_param_array(parity, int, NULL, 0);
385MODULE_PARM_DESC(parity,"use scsi parity");
386
387static int sync[] = {1, 1};
388module_param_array(sync, int, NULL, 0);
389MODULE_PARM_DESC(sync,"use synchronous transfers");
390
391static int delay[] = {DELAY_DEFAULT, DELAY_DEFAULT};
392module_param_array(delay, int, NULL, 0);
393MODULE_PARM_DESC(delay,"scsi reset delay");
394
395static int exttrans[] = {0, 0};
396module_param_array(exttrans, int, NULL, 0);
397MODULE_PARM_DESC(exttrans,"use extended translation");
398
399#if !defined(AHA152X_DEBUG)
400static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
401module_param_array(aha152x, int, NULL, 0);
402MODULE_PARM_DESC(aha152x, "parameters for first controller");
403
404static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
405module_param_array(aha152x1, int, NULL, 0);
406MODULE_PARM_DESC(aha152x1, "parameters for second controller");
407#else
408static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT};
409module_param_array(debug, int, NULL, 0);
410MODULE_PARM_DESC(debug, "flags for driver debugging");
411
412static int aha152x[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
413module_param_array(aha152x, int, NULL, 0);
414MODULE_PARM_DESC(aha152x, "parameters for first controller");
415
416static int aha152x1[] = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
417module_param_array(aha152x1, int, NULL, 0);
418MODULE_PARM_DESC(aha152x1, "parameters for second controller");
419#endif
420#endif
421
422#ifdef __ISAPNP__
423static struct isapnp_device_id id_table[] __devinitdata = {
424 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
425 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 },
426 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
427 ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 },
428 { ISAPNP_DEVICE_SINGLE_END, }
429};
430MODULE_DEVICE_TABLE(isapnp, id_table);
431#endif
432
433#endif
434
435static struct scsi_host_template aha152x_driver_template;
436
437
438
439
440
441enum aha152x_state {
442 idle=0,
443 unknown,
444 seldo,
445 seldi,
446 selto,
447 busfree,
448 msgo,
449 cmd,
450 msgi,
451 status,
452 datai,
453 datao,
454 parerr,
455 rsti,
456 maxstate
457};
458
459
460
461
462
463struct aha152x_hostdata {
464 Scsi_Cmnd *issue_SC;
465
466
467 Scsi_Cmnd *current_SC;
468
469
470 Scsi_Cmnd *disconnected_SC;
471
472
473 Scsi_Cmnd *done_SC;
474
475
476 spinlock_t lock;
477
478
479#if defined(AHA152X_DEBUG)
480 const char *locker;
481
482 int lockerl;
483
484 int debug;
485#endif
486
487#if defined(AHA152X_STAT)
488 int total_commands;
489 int disconnections;
490 int busfree_without_any_action;
491 int busfree_without_old_command;
492 int busfree_without_new_command;
493 int busfree_without_done_command;
494 int busfree_with_check_condition;
495 int count[maxstate];
496 int count_trans[maxstate];
497 unsigned long time[maxstate];
498#endif
499
500 int commands;
501
502 int reconnect;
503 int parity;
504 int synchronous;
505 int delay;
506 int ext_trans;
507
508 int swint;
509 int service;
510 int in_intr;
511
512
513
514
515 enum aha152x_state state, prevstate, laststate;
516
517 int target;
518
519
520 unsigned char syncrate[8];
521
522
523 unsigned char syncneg[8];
524
525
526
527
528
529 int cmd_i;
530
531
532 int msgi_len;
533
534 unsigned char msgi[256];
535
536
537 int msgo_i, msgo_len;
538
539 unsigned char msgo[256];
540
541
542 int data_len;
543
544
545 unsigned long io_port0;
546 unsigned long io_port1;
547
548#ifdef __ISAPNP__
549 struct pnp_dev *pnpdev;
550#endif
551 struct list_head host_list;
552};
553
554
555
556
557
558
559struct aha152x_scdata {
560 Scsi_Cmnd *next;
561 struct completion *done;
562 struct scsi_eh_save ses;
563};
564
565
566
567#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
568
569#define HOSTNO ((shpnt)->host_no)
570
571#define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
572#define DONE_SC (HOSTDATA(shpnt)->done_SC)
573#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
574#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
575#define QLOCK (HOSTDATA(shpnt)->lock)
576#define QLOCKER (HOSTDATA(shpnt)->locker)
577#define QLOCKERL (HOSTDATA(shpnt)->lockerl)
578
579#define STATE (HOSTDATA(shpnt)->state)
580#define PREVSTATE (HOSTDATA(shpnt)->prevstate)
581#define LASTSTATE (HOSTDATA(shpnt)->laststate)
582
583#define RECONN_TARGET (HOSTDATA(shpnt)->target)
584
585#define CMD_I (HOSTDATA(shpnt)->cmd_i)
586
587#define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
588#define MSGO_I (HOSTDATA(shpnt)->msgo_i)
589#define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
590#define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
591
592#define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
593#define MSGILEN (HOSTDATA(shpnt)->msgi_len)
594#define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
595
596#define DATA_LEN (HOSTDATA(shpnt)->data_len)
597
598#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
599#define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
600
601#define DELAY (HOSTDATA(shpnt)->delay)
602#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
603#define TC1550 (HOSTDATA(shpnt)->tc1550)
604#define RECONNECT (HOSTDATA(shpnt)->reconnect)
605#define PARITY (HOSTDATA(shpnt)->parity)
606#define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
607
608#define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
609#define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
610
611#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
612#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
613#define SCSEM(SCpnt) SCDATA(SCpnt)->done
614
615#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
616
617
618static void seldi_run(struct Scsi_Host *shpnt);
619static void seldo_run(struct Scsi_Host *shpnt);
620static void selto_run(struct Scsi_Host *shpnt);
621static void busfree_run(struct Scsi_Host *shpnt);
622
623static void msgo_init(struct Scsi_Host *shpnt);
624static void msgo_run(struct Scsi_Host *shpnt);
625static void msgo_end(struct Scsi_Host *shpnt);
626
627static void cmd_init(struct Scsi_Host *shpnt);
628static void cmd_run(struct Scsi_Host *shpnt);
629static void cmd_end(struct Scsi_Host *shpnt);
630
631static void datai_init(struct Scsi_Host *shpnt);
632static void datai_run(struct Scsi_Host *shpnt);
633static void datai_end(struct Scsi_Host *shpnt);
634
635static void datao_init(struct Scsi_Host *shpnt);
636static void datao_run(struct Scsi_Host *shpnt);
637static void datao_end(struct Scsi_Host *shpnt);
638
639static void status_run(struct Scsi_Host *shpnt);
640
641static void msgi_run(struct Scsi_Host *shpnt);
642static void msgi_end(struct Scsi_Host *shpnt);
643
644static void parerr_run(struct Scsi_Host *shpnt);
645static void rsti_run(struct Scsi_Host *shpnt);
646
647static void is_complete(struct Scsi_Host *shpnt);
648
649
650
651
652
653static struct {
654 char *name;
655 void (*init)(struct Scsi_Host *);
656 void (*run)(struct Scsi_Host *);
657 void (*end)(struct Scsi_Host *);
658 int spio;
659} states[] = {
660 { "idle", NULL, NULL, NULL, 0},
661 { "unknown", NULL, NULL, NULL, 0},
662 { "seldo", NULL, seldo_run, NULL, 0},
663 { "seldi", NULL, seldi_run, NULL, 0},
664 { "selto", NULL, selto_run, NULL, 0},
665 { "busfree", NULL, busfree_run, NULL, 0},
666 { "msgo", msgo_init, msgo_run, msgo_end, 1},
667 { "cmd", cmd_init, cmd_run, cmd_end, 1},
668 { "msgi", NULL, msgi_run, msgi_end, 1},
669 { "status", NULL, status_run, NULL, 1},
670 { "datai", datai_init, datai_run, datai_end, 0},
671 { "datao", datao_init, datao_run, datao_end, 0},
672 { "parerr", NULL, parerr_run, NULL, 0},
673 { "rsti", NULL, rsti_run, NULL, 0},
674};
675
676
677static irqreturn_t intr(int irq, void *dev_id);
678static void reset_ports(struct Scsi_Host *shpnt);
679static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
680static void done(struct Scsi_Host *shpnt, int error);
681
682
683static void disp_ports(struct Scsi_Host *shpnt);
684static void show_command(Scsi_Cmnd * ptr);
685static void show_queues(struct Scsi_Host *shpnt);
686static void disp_enintr(struct Scsi_Host *shpnt);
687
688
689
690
691
692
693static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
694{
695 Scsi_Cmnd *end;
696
697 SCNEXT(new_SC) = NULL;
698 if (!*SC)
699 *SC = new_SC;
700 else {
701 for (end = *SC; SCNEXT(end); end = SCNEXT(end))
702 ;
703 SCNEXT(end) = new_SC;
704 }
705}
706
707static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
708{
709 Scsi_Cmnd *ptr;
710
711 ptr = *SC;
712 if (ptr) {
713 *SC = SCNEXT(*SC);
714 SCNEXT(ptr)=NULL;
715 }
716 return ptr;
717}
718
719static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
720{
721 Scsi_Cmnd *ptr, *prev;
722
723 for (ptr = *SC, prev = NULL;
724 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
725 prev = ptr, ptr = SCNEXT(ptr))
726 ;
727
728 if (ptr) {
729 if (prev)
730 SCNEXT(prev) = SCNEXT(ptr);
731 else
732 *SC = SCNEXT(ptr);
733
734 SCNEXT(ptr)=NULL;
735 }
736
737 return ptr;
738}
739
740static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
741{
742 Scsi_Cmnd *ptr, *prev;
743
744 for (ptr = *SC, prev = NULL;
745 ptr && SCp!=ptr;
746 prev = ptr, ptr = SCNEXT(ptr))
747 ;
748
749 if (ptr) {
750 if (prev)
751 SCNEXT(prev) = SCNEXT(ptr);
752 else
753 *SC = SCNEXT(ptr);
754
755 SCNEXT(ptr)=NULL;
756 }
757
758 return ptr;
759}
760
761static irqreturn_t swintr(int irqno, void *dev_id)
762{
763 struct Scsi_Host *shpnt = dev_id;
764
765 HOSTDATA(shpnt)->swint++;
766
767 SETPORT(DMACNTRL0, INTEN);
768 return IRQ_HANDLED;
769}
770
771struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
772{
773 struct Scsi_Host *shpnt;
774
775 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
776 if (!shpnt) {
777 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
778 return NULL;
779 }
780
781 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
782 INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
783
784
785 list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
786
787 shpnt->io_port = setup->io_port;
788 shpnt->n_io_port = IO_RANGE;
789 shpnt->irq = setup->irq;
790
791 if (!setup->tc1550) {
792 HOSTIOPORT0 = setup->io_port;
793 HOSTIOPORT1 = setup->io_port;
794 } else {
795 HOSTIOPORT0 = setup->io_port+0x10;
796 HOSTIOPORT1 = setup->io_port-0x10;
797 }
798
799 spin_lock_init(&QLOCK);
800 RECONNECT = setup->reconnect;
801 SYNCHRONOUS = setup->synchronous;
802 PARITY = setup->parity;
803 DELAY = setup->delay;
804 EXT_TRANS = setup->ext_trans;
805
806#if defined(AHA152X_DEBUG)
807 HOSTDATA(shpnt)->debug = setup->debug;
808#endif
809
810 SETPORT(SCSIID, setup->scsiid << 4);
811 shpnt->this_id = setup->scsiid;
812
813 if (setup->reconnect)
814 shpnt->can_queue = AHA152X_MAXQUEUE;
815
816
817 printk("aha152x: resetting bus...\n");
818 SETPORT(SCSISEQ, SCSIRSTO);
819 mdelay(256);
820 SETPORT(SCSISEQ, 0);
821 mdelay(DELAY);
822
823 reset_ports(shpnt);
824
825 printk(KERN_INFO
826 "aha152x%d%s: "
827 "vital data: rev=%x, "
828 "io=0x%03lx (0x%03lx/0x%03lx), "
829 "irq=%d, "
830 "scsiid=%d, "
831 "reconnect=%s, "
832 "parity=%s, "
833 "synchronous=%s, "
834 "delay=%d, "
835 "extended translation=%s\n",
836 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
837 GETPORT(REV) & 0x7,
838 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
839 shpnt->irq,
840 shpnt->this_id,
841 RECONNECT ? "enabled" : "disabled",
842 PARITY ? "enabled" : "disabled",
843 SYNCHRONOUS ? "enabled" : "disabled",
844 DELAY,
845 EXT_TRANS ? "enabled" : "disabled");
846
847
848 SETPORT(SIMODE0, 0);
849 SETPORT(SIMODE1, 0);
850
851 if( request_irq(shpnt->irq, swintr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
852 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
853 goto out_host_put;
854 }
855
856 HOSTDATA(shpnt)->swint = 0;
857
858 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
859
860 mb();
861 SETPORT(DMACNTRL0, SWINT|INTEN);
862 mdelay(1000);
863 free_irq(shpnt->irq, shpnt);
864
865 if (!HOSTDATA(shpnt)->swint) {
866 if (TESTHI(DMASTAT, INTSTAT)) {
867 printk("lost.\n");
868 } else {
869 printk("failed.\n");
870 }
871
872 SETPORT(DMACNTRL0, INTEN);
873
874 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
875 "Please verify.\n", shpnt->host_no, shpnt->irq);
876 goto out_host_put;
877 }
878 printk("ok.\n");
879
880
881
882 SETPORT(SSTAT0, 0x7f);
883 SETPORT(SSTAT1, 0xef);
884
885 if ( request_irq(shpnt->irq, intr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
886 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
887 goto out_host_put;
888 }
889
890 if( scsi_add_host(shpnt, NULL) ) {
891 free_irq(shpnt->irq, shpnt);
892 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
893 goto out_host_put;
894 }
895
896 scsi_scan_host(shpnt);
897
898 return shpnt;
899
900out_host_put:
901 list_del(&HOSTDATA(shpnt)->host_list);
902 scsi_host_put(shpnt);
903
904 return NULL;
905}
906
907void aha152x_release(struct Scsi_Host *shpnt)
908{
909 if (!shpnt)
910 return;
911
912 scsi_remove_host(shpnt);
913 if (shpnt->irq)
914 free_irq(shpnt->irq, shpnt);
915
916#if !defined(PCMCIA)
917 if (shpnt->io_port)
918 release_region(shpnt->io_port, IO_RANGE);
919#endif
920
921#ifdef __ISAPNP__
922 if (HOSTDATA(shpnt)->pnpdev)
923 pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
924#endif
925
926 list_del(&HOSTDATA(shpnt)->host_list);
927 scsi_host_put(shpnt);
928}
929
930
931
932
933
934
935
936static int setup_expected_interrupts(struct Scsi_Host *shpnt)
937{
938 if(CURRENT_SC) {
939 CURRENT_SC->SCp.phase |= 1 << 16;
940
941 if(CURRENT_SC->SCp.phase & selecting) {
942 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
943 SETPORT(SSTAT1, SELTO);
944 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
945 SETPORT(SIMODE1, ENSELTIMO);
946 } else {
947 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
948 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
949 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
950 }
951 } else if(STATE==seldi) {
952 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
953 SETPORT(SIMODE0, 0);
954 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
955 } else {
956 DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
957 CMDINFO(CURRENT_SC),
958 DISCONNECTED_SC ? "(reselection)" : "",
959 ISSUE_SC ? "(busfree)" : "");
960 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
961 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
962 }
963
964 if(!HOSTDATA(shpnt)->in_intr)
965 SETBITS(DMACNTRL0, INTEN);
966
967 return TESTHI(DMASTAT, INTSTAT);
968}
969
970
971
972
973
974static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
975 int phase, void (*done)(Scsi_Cmnd *))
976{
977 struct Scsi_Host *shpnt = SCpnt->device->host;
978 unsigned long flags;
979
980#if defined(AHA152X_DEBUG)
981 if (HOSTDATA(shpnt)->debug & debug_queue) {
982 printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
983 CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
984 scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
985 __scsi_print_command(SCpnt->cmnd);
986 }
987#endif
988
989 SCpnt->scsi_done = done;
990 SCpnt->SCp.phase = not_issued | phase;
991 SCpnt->SCp.Status = 0x1;
992 SCpnt->SCp.Message = 0;
993 SCpnt->SCp.have_data_in = 0;
994 SCpnt->SCp.sent_command = 0;
995
996 if(SCpnt->SCp.phase & (resetting|check_condition)) {
997 if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
998 printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
999 return FAILED;
1000 }
1001 } else {
1002 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
1003 if(!SCpnt->host_scribble) {
1004 printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
1005 return FAILED;
1006 }
1007 }
1008
1009 SCNEXT(SCpnt) = NULL;
1010 SCSEM(SCpnt) = complete;
1011
1012
1013
1014
1015
1016
1017
1018
1019 if ((phase & resetting) || !scsi_sglist(SCpnt)) {
1020 SCpnt->SCp.ptr = NULL;
1021 SCpnt->SCp.this_residual = 0;
1022 scsi_set_resid(SCpnt, 0);
1023 SCpnt->SCp.buffer = NULL;
1024 SCpnt->SCp.buffers_residual = 0;
1025 } else {
1026 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
1027 SCpnt->SCp.buffer = scsi_sglist(SCpnt);
1028 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
1029 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
1030 SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
1031 }
1032
1033 DO_LOCK(flags);
1034
1035#if defined(AHA152X_STAT)
1036 HOSTDATA(shpnt)->total_commands++;
1037#endif
1038
1039
1040 HOSTDATA(shpnt)->commands++;
1041 if (HOSTDATA(shpnt)->commands==1)
1042 SETPORT(PORTA, 1);
1043
1044 append_SC(&ISSUE_SC, SCpnt);
1045
1046 if(!HOSTDATA(shpnt)->in_intr)
1047 setup_expected_interrupts(shpnt);
1048
1049 DO_UNLOCK(flags);
1050
1051 return 0;
1052}
1053
1054
1055
1056
1057
1058static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
1059{
1060#if 0
1061 if(*SCpnt->cmnd == REQUEST_SENSE) {
1062 SCpnt->result = 0;
1063 done(SCpnt);
1064
1065 return 0;
1066 }
1067#endif
1068
1069 return aha152x_internal_queue(SCpnt, NULL, 0, done);
1070}
1071
1072
1073
1074
1075
1076
1077static void reset_done(Scsi_Cmnd *SCpnt)
1078{
1079#if 0
1080 struct Scsi_Host *shpnt = SCpnt->host;
1081 DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
1082#endif
1083 if(SCSEM(SCpnt)) {
1084 complete(SCSEM(SCpnt));
1085 } else {
1086 printk(KERN_ERR "aha152x: reset_done w/o completion\n");
1087 }
1088}
1089
1090
1091
1092
1093
1094static int aha152x_abort(Scsi_Cmnd *SCpnt)
1095{
1096 struct Scsi_Host *shpnt = SCpnt->device->host;
1097 Scsi_Cmnd *ptr;
1098 unsigned long flags;
1099
1100#if defined(AHA152X_DEBUG)
1101 if(HOSTDATA(shpnt)->debug & debug_eh) {
1102 printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
1103 show_queues(shpnt);
1104 }
1105#endif
1106
1107 DO_LOCK(flags);
1108
1109 ptr=remove_SC(&ISSUE_SC, SCpnt);
1110
1111 if(ptr) {
1112 DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
1113
1114 HOSTDATA(shpnt)->commands--;
1115 if (!HOSTDATA(shpnt)->commands)
1116 SETPORT(PORTA, 0);
1117 DO_UNLOCK(flags);
1118
1119 kfree(SCpnt->host_scribble);
1120 SCpnt->host_scribble=NULL;
1121
1122 return SUCCESS;
1123 }
1124
1125 DO_UNLOCK(flags);
1126
1127
1128
1129
1130
1131
1132
1133
1134 printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
1135
1136 return FAILED;
1137}
1138
1139
1140
1141
1142
1143static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
1144{
1145 struct Scsi_Host *shpnt = SCpnt->device->host;
1146 DECLARE_COMPLETION(done);
1147 int ret, issued, disconnected;
1148 unsigned char old_cmd_len = SCpnt->cmd_len;
1149 unsigned long flags;
1150 unsigned long timeleft;
1151
1152#if defined(AHA152X_DEBUG)
1153 if(HOSTDATA(shpnt)->debug & debug_eh) {
1154 printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
1155 show_queues(shpnt);
1156 }
1157#endif
1158
1159 if(CURRENT_SC==SCpnt) {
1160 printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
1161 return FAILED;
1162 }
1163
1164 DO_LOCK(flags);
1165 issued = remove_SC(&ISSUE_SC, SCpnt) == NULL;
1166 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
1167 DO_UNLOCK(flags);
1168
1169 SCpnt->cmd_len = 0;
1170
1171 aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
1172
1173 timeleft = wait_for_completion_timeout(&done, 100*HZ);
1174 if (!timeleft) {
1175
1176 DO_LOCK(flags);
1177 remove_SC(&ISSUE_SC, SCpnt);
1178 DO_UNLOCK(flags);
1179 }
1180
1181 SCpnt->cmd_len = old_cmd_len;
1182
1183 DO_LOCK(flags);
1184
1185 if(SCpnt->SCp.phase & resetted) {
1186 HOSTDATA(shpnt)->commands--;
1187 if (!HOSTDATA(shpnt)->commands)
1188 SETPORT(PORTA, 0);
1189 kfree(SCpnt->host_scribble);
1190 SCpnt->host_scribble=NULL;
1191
1192 ret = SUCCESS;
1193 } else {
1194
1195 if(!issued) {
1196 append_SC(&ISSUE_SC, SCpnt);
1197 } else if(disconnected) {
1198 append_SC(&DISCONNECTED_SC, SCpnt);
1199 }
1200
1201 ret = FAILED;
1202 }
1203
1204 DO_UNLOCK(flags);
1205 return ret;
1206}
1207
1208static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
1209{
1210 Scsi_Cmnd *ptr;
1211
1212 ptr=*SCs;
1213 while(ptr) {
1214 Scsi_Cmnd *next;
1215
1216 if(SCDATA(ptr)) {
1217 next = SCNEXT(ptr);
1218 } else {
1219 printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
1220 next = NULL;
1221 }
1222
1223 if (!ptr->device->soft_reset) {
1224 DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
1225 remove_SC(SCs, ptr);
1226 HOSTDATA(shpnt)->commands--;
1227 kfree(ptr->host_scribble);
1228 ptr->host_scribble=NULL;
1229 }
1230
1231 ptr = next;
1232 }
1233}
1234
1235
1236
1237
1238
1239static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
1240{
1241 unsigned long flags;
1242
1243 DO_LOCK(flags);
1244
1245#if defined(AHA152X_DEBUG)
1246 if(HOSTDATA(shpnt)->debug & debug_eh) {
1247 printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
1248 show_queues(shpnt);
1249 }
1250#endif
1251
1252 free_hard_reset_SCs(shpnt, &ISSUE_SC);
1253 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
1254
1255 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
1256
1257 SETPORT(SCSISEQ, SCSIRSTO);
1258 mdelay(256);
1259 SETPORT(SCSISEQ, 0);
1260 mdelay(DELAY);
1261
1262 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
1263
1264 setup_expected_interrupts(shpnt);
1265 if(HOSTDATA(shpnt)->commands==0)
1266 SETPORT(PORTA, 0);
1267
1268 DO_UNLOCK(flags);
1269
1270 return SUCCESS;
1271}
1272
1273
1274
1275
1276
1277static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
1278{
1279 return aha152x_bus_reset_host(SCpnt->device->host);
1280}
1281
1282
1283
1284
1285
1286static void reset_ports(struct Scsi_Host *shpnt)
1287{
1288 unsigned long flags;
1289
1290
1291 SETPORT(DMACNTRL0, RSTFIFO);
1292
1293 SETPORT(SCSISEQ, 0);
1294
1295 SETPORT(SXFRCTL1, 0);
1296 SETPORT(SCSISIG, 0);
1297 SETRATE(0);
1298
1299
1300 SETPORT(SSTAT0, 0x7f);
1301 SETPORT(SSTAT1, 0xef);
1302
1303 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR);
1304
1305 SETPORT(DMACNTRL0, 0);
1306 SETPORT(DMACNTRL1, 0);
1307
1308 SETPORT(BRSTCNTRL, 0xf1);
1309
1310
1311 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1312 SETPORT(SXFRCTL0, CH1);
1313
1314 DO_LOCK(flags);
1315 setup_expected_interrupts(shpnt);
1316 DO_UNLOCK(flags);
1317}
1318
1319
1320
1321
1322
1323int aha152x_host_reset_host(struct Scsi_Host *shpnt)
1324{
1325 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
1326
1327 aha152x_bus_reset_host(shpnt);
1328
1329 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
1330 reset_ports(shpnt);
1331
1332 return SUCCESS;
1333}
1334
1335
1336
1337
1338
1339static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
1340{
1341 return aha152x_host_reset_host(SCpnt->device->host);
1342}
1343
1344
1345
1346
1347
1348static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1349 sector_t capacity, int *info_array)
1350{
1351 struct Scsi_Host *shpnt = sdev->host;
1352
1353
1354 info_array[0] = 64;
1355 info_array[1] = 32;
1356 info_array[2] = (unsigned long)capacity / (64 * 32);
1357
1358
1359 if (info_array[2] >= 1024) {
1360 int info[3];
1361
1362
1363 if (scsicam_bios_param(bdev, capacity, info) < 0 ||
1364 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
1365 if (EXT_TRANS) {
1366 printk(KERN_NOTICE
1367 "aha152x: unable to verify geometry for disk with >1GB.\n"
1368 " using extended translation.\n");
1369 info_array[0] = 255;
1370 info_array[1] = 63;
1371 info_array[2] = (unsigned long)capacity / (255 * 63);
1372 } else {
1373 printk(KERN_NOTICE
1374 "aha152x: unable to verify geometry for disk with >1GB.\n"
1375 " Using default translation. Please verify yourself.\n"
1376 " Perhaps you need to enable extended translation in the driver.\n"
1377 " See Documentation/scsi/aha152x.txt for details.\n");
1378 }
1379 } else {
1380 info_array[0] = info[0];
1381 info_array[1] = info[1];
1382 info_array[2] = info[2];
1383
1384 if (info[0] == 255 && !EXT_TRANS) {
1385 printk(KERN_NOTICE
1386 "aha152x: current partition table is using extended translation.\n"
1387 " using it also, although it's not explicitly enabled.\n");
1388 }
1389 }
1390 }
1391
1392 return 0;
1393}
1394
1395
1396
1397
1398
1399static void done(struct Scsi_Host *shpnt, int error)
1400{
1401 if (CURRENT_SC) {
1402 if(DONE_SC)
1403 printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
1404
1405 DONE_SC = CURRENT_SC;
1406 CURRENT_SC = NULL;
1407 DONE_SC->result = error;
1408 } else
1409 printk(KERN_ERR "aha152x: done() called outside of command\n");
1410}
1411
1412static struct work_struct aha152x_tq;
1413
1414
1415
1416
1417
1418static void run(struct work_struct *work)
1419{
1420 struct aha152x_hostdata *hd;
1421
1422 list_for_each_entry(hd, &aha152x_host_list, host_list) {
1423 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
1424
1425 is_complete(shost);
1426 }
1427}
1428
1429
1430
1431
1432
1433static irqreturn_t intr(int irqno, void *dev_id)
1434{
1435 struct Scsi_Host *shpnt = dev_id;
1436 unsigned long flags;
1437 unsigned char rev, dmacntrl0;
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452 rev = GETPORT(REV);
1453 dmacntrl0 = GETPORT(DMACNTRL0);
1454 if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
1455 return IRQ_NONE;
1456
1457 if( TESTLO(DMASTAT, INTSTAT) )
1458 return IRQ_NONE;
1459
1460
1461
1462 CLRBITS(DMACNTRL0, INTEN);
1463
1464 DO_LOCK(flags);
1465 if( HOSTDATA(shpnt)->service==0 ) {
1466 HOSTDATA(shpnt)->service=1;
1467
1468
1469 INIT_WORK(&aha152x_tq, run);
1470 schedule_work(&aha152x_tq);
1471 }
1472 DO_UNLOCK(flags);
1473
1474 return IRQ_HANDLED;
1475}
1476
1477
1478
1479
1480
1481
1482static void busfree_run(struct Scsi_Host *shpnt)
1483{
1484 unsigned long flags;
1485#if defined(AHA152X_STAT)
1486 int action=0;
1487#endif
1488
1489 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1490 SETPORT(SXFRCTL0, CH1);
1491
1492 SETPORT(SSTAT1, CLRBUSFREE);
1493
1494 if(CURRENT_SC) {
1495#if defined(AHA152X_STAT)
1496 action++;
1497#endif
1498 CURRENT_SC->SCp.phase &= ~syncneg;
1499
1500 if(CURRENT_SC->SCp.phase & completed) {
1501
1502 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
1503
1504 } else if(CURRENT_SC->SCp.phase & aborted) {
1505 DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
1506 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
1507
1508 } else if(CURRENT_SC->SCp.phase & resetted) {
1509 DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
1510 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
1511
1512 } else if(CURRENT_SC->SCp.phase & disconnected) {
1513
1514 DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
1515 CMDINFO(CURRENT_SC),
1516 scsi_get_resid(CURRENT_SC),
1517 scsi_bufflen(CURRENT_SC));
1518#if defined(AHA152X_STAT)
1519 HOSTDATA(shpnt)->disconnections++;
1520#endif
1521 append_SC(&DISCONNECTED_SC, CURRENT_SC);
1522 CURRENT_SC->SCp.phase |= 1 << 16;
1523 CURRENT_SC = NULL;
1524
1525 } else {
1526 done(shpnt, DID_ERROR << 16);
1527 }
1528#if defined(AHA152X_STAT)
1529 } else {
1530 HOSTDATA(shpnt)->busfree_without_old_command++;
1531#endif
1532 }
1533
1534 DO_LOCK(flags);
1535
1536 if(DONE_SC) {
1537#if defined(AHA152X_STAT)
1538 action++;
1539#endif
1540
1541 if(DONE_SC->SCp.phase & check_condition) {
1542 struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
1543 struct aha152x_scdata *sc = SCDATA(cmd);
1544
1545#if 0
1546 if(HOSTDATA(shpnt)->debug & debug_eh) {
1547 printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
1548 scsi_print_sense("bh", DONE_SC);
1549 }
1550#endif
1551
1552 scsi_eh_restore_cmnd(cmd, &sc->ses);
1553
1554 cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
1555
1556 HOSTDATA(shpnt)->commands--;
1557 if (!HOSTDATA(shpnt)->commands)
1558 SETPORT(PORTA, 0);
1559 } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
1560#if defined(AHA152X_STAT)
1561 HOSTDATA(shpnt)->busfree_with_check_condition++;
1562#endif
1563#if 0
1564 DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
1565#endif
1566
1567 if(!(DONE_SC->SCp.phase & not_issued)) {
1568 struct aha152x_scdata *sc;
1569 Scsi_Cmnd *ptr = DONE_SC;
1570 DONE_SC=NULL;
1571#if 0
1572 DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
1573#endif
1574
1575 sc = SCDATA(ptr);
1576
1577 BUG_ON(!sc);
1578 scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
1579
1580 DO_UNLOCK(flags);
1581 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
1582 DO_LOCK(flags);
1583#if 0
1584 } else {
1585 DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
1586#endif
1587 }
1588 }
1589
1590 if(DONE_SC && DONE_SC->scsi_done) {
1591#if defined(AHA152X_DEBUG)
1592 int hostno=DONE_SC->device->host->host_no;
1593 int id=DONE_SC->device->id & 0xf;
1594 int lun=DONE_SC->device->lun & 0x7;
1595#endif
1596 Scsi_Cmnd *ptr = DONE_SC;
1597 DONE_SC=NULL;
1598
1599
1600 HOSTDATA(shpnt)->commands--;
1601 if (!HOSTDATA(shpnt)->commands)
1602 SETPORT(PORTA, 0);
1603
1604 if(ptr->scsi_done != reset_done) {
1605 kfree(ptr->host_scribble);
1606 ptr->host_scribble=NULL;
1607 }
1608
1609 DO_UNLOCK(flags);
1610 DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
1611 ptr->scsi_done(ptr);
1612 DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
1613 DO_LOCK(flags);
1614 }
1615
1616 DONE_SC=NULL;
1617#if defined(AHA152X_STAT)
1618 } else {
1619 HOSTDATA(shpnt)->busfree_without_done_command++;
1620#endif
1621 }
1622
1623 if(ISSUE_SC)
1624 CURRENT_SC = remove_first_SC(&ISSUE_SC);
1625
1626 DO_UNLOCK(flags);
1627
1628 if(CURRENT_SC) {
1629#if defined(AHA152X_STAT)
1630 action++;
1631#endif
1632 CURRENT_SC->SCp.phase |= selecting;
1633
1634 DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
1635
1636
1637 SETPORT(SSTAT1, SELTO);
1638
1639 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
1640 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
1641 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
1642 } else {
1643#if defined(AHA152X_STAT)
1644 HOSTDATA(shpnt)->busfree_without_new_command++;
1645#endif
1646 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
1647 }
1648
1649#if defined(AHA152X_STAT)
1650 if(!action)
1651 HOSTDATA(shpnt)->busfree_without_any_action++;
1652#endif
1653}
1654
1655
1656
1657
1658
1659
1660static void seldo_run(struct Scsi_Host *shpnt)
1661{
1662 SETPORT(SCSISIG, 0);
1663 SETPORT(SSTAT1, CLRBUSFREE);
1664 SETPORT(SSTAT1, CLRPHASECHG);
1665
1666 CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
1667
1668 SETPORT(SCSISEQ, 0);
1669
1670 if (TESTLO(SSTAT0, SELDO)) {
1671 printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
1672 done(shpnt, DID_NO_CONNECT << 16);
1673 return;
1674 }
1675
1676 SETPORT(SSTAT0, CLRSELDO);
1677
1678 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1679
1680 if (CURRENT_SC->SCp.phase & aborting) {
1681 ADDMSGO(ABORT);
1682 } else if (CURRENT_SC->SCp.phase & resetting) {
1683 ADDMSGO(BUS_DEVICE_RESET);
1684 } else if (SYNCNEG==0 && SYNCHRONOUS) {
1685 CURRENT_SC->SCp.phase |= syncneg;
1686 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
1687 SYNCNEG=1;
1688 }
1689
1690 SETRATE(SYNCRATE);
1691}
1692
1693
1694
1695
1696
1697
1698static void selto_run(struct Scsi_Host *shpnt)
1699{
1700 SETPORT(SCSISEQ, 0);
1701 SETPORT(SSTAT1, CLRSELTIMO);
1702
1703 DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
1704
1705 if(!CURRENT_SC) {
1706 DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
1707 return;
1708 }
1709
1710 CURRENT_SC->SCp.phase &= ~selecting;
1711
1712 if (CURRENT_SC->SCp.phase & aborted) {
1713 DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
1714 done(shpnt, DID_ABORT << 16);
1715 } else if (TESTLO(SSTAT0, SELINGO)) {
1716 DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
1717 done(shpnt, DID_BUS_BUSY << 16);
1718 } else {
1719
1720 DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
1721 done(shpnt, DID_NO_CONNECT << 16);
1722 }
1723}
1724
1725
1726
1727
1728
1729
1730
1731
1732static void seldi_run(struct Scsi_Host *shpnt)
1733{
1734 int selid;
1735 int target;
1736 unsigned long flags;
1737
1738 SETPORT(SCSISIG, 0);
1739 SETPORT(SSTAT0, CLRSELDI);
1740 SETPORT(SSTAT1, CLRBUSFREE);
1741 SETPORT(SSTAT1, CLRPHASECHG);
1742
1743 if(CURRENT_SC) {
1744 if(!(CURRENT_SC->SCp.phase & not_issued))
1745 printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
1746
1747 DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
1748
1749 DO_LOCK(flags);
1750 append_SC(&ISSUE_SC, CURRENT_SC);
1751 DO_UNLOCK(flags);
1752
1753 CURRENT_SC = NULL;
1754 }
1755
1756 if(!DISCONNECTED_SC) {
1757 DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
1758 return;
1759 }
1760
1761 RECONN_TARGET=-1;
1762
1763 selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
1764
1765 if (selid==0) {
1766 printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
1767 return;
1768 }
1769
1770 for(target=7; !(selid & (1 << target)); target--)
1771 ;
1772
1773 if(selid & ~(1 << target)) {
1774 printk("aha152x%d: multiple targets reconnected (%02x)\n",
1775 HOSTNO, selid);
1776 }
1777
1778
1779 SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
1780 SETPORT(SCSISEQ, 0);
1781
1782 SETRATE(HOSTDATA(shpnt)->syncrate[target]);
1783
1784 RECONN_TARGET=target;
1785 DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
1786}
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801static void msgi_run(struct Scsi_Host *shpnt)
1802{
1803 for(;;) {
1804 int sstat1 = GETPORT(SSTAT1);
1805
1806 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
1807 return;
1808
1809 if(TESTLO(SSTAT0,SPIORDY)) {
1810 DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
1811 return;
1812 }
1813
1814 ADDMSGI(GETPORT(SCSIDAT));
1815
1816#if defined(AHA152X_DEBUG)
1817 if (HOSTDATA(shpnt)->debug & debug_msgi) {
1818 printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
1819 spi_print_msg(&MSGI(0));
1820 printk("\n");
1821 }
1822#endif
1823
1824 if(!CURRENT_SC) {
1825 if(LASTSTATE!=seldi) {
1826 printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
1827 }
1828
1829
1830
1831
1832 if(!(MSGI(0) & IDENTIFY_BASE)) {
1833 printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
1834 continue;
1835 }
1836
1837 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
1838
1839 if (!CURRENT_SC) {
1840 show_queues(shpnt);
1841 printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
1842 continue;
1843 }
1844
1845 DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
1846
1847 CURRENT_SC->SCp.Message = MSGI(0);
1848 CURRENT_SC->SCp.phase &= ~disconnected;
1849
1850 MSGILEN=0;
1851
1852
1853 continue;
1854 }
1855
1856 CURRENT_SC->SCp.Message = MSGI(0);
1857
1858 switch (MSGI(0)) {
1859 case DISCONNECT:
1860 if (!RECONNECT)
1861 printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
1862
1863 CURRENT_SC->SCp.phase |= disconnected;
1864 break;
1865
1866 case COMMAND_COMPLETE:
1867 if(CURRENT_SC->SCp.phase & completed)
1868 DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
1869
1870 CURRENT_SC->SCp.phase |= completed;
1871 break;
1872
1873 case MESSAGE_REJECT:
1874 if (SYNCNEG==1) {
1875 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
1876 SYNCNEG=2;
1877 } else
1878 printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
1879 break;
1880
1881 case SAVE_POINTERS:
1882 break;
1883
1884 case RESTORE_POINTERS:
1885 break;
1886
1887 case EXTENDED_MESSAGE:
1888 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
1889
1890 continue;
1891 }
1892
1893 switch (MSGI(2)) {
1894 case EXTENDED_SDTR:
1895 {
1896 long ticks;
1897
1898 if (MSGI(1) != 3) {
1899 printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
1900 break;
1901 }
1902
1903 if (!HOSTDATA(shpnt)->synchronous)
1904 break;
1905
1906 printk(INFO_LEAD, CMDINFO(CURRENT_SC));
1907 spi_print_msg(&MSGI(0));
1908 printk("\n");
1909
1910 ticks = (MSGI(3) * 4 + 49) / 50;
1911
1912 if (syncneg) {
1913
1914 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
1915 ADDMSGO(MESSAGE_REJECT);
1916 printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
1917 break;
1918 }
1919
1920 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1921 } else if (ticks <= 9 && MSGI(4) >= 1) {
1922 ADDMSGO(EXTENDED_MESSAGE);
1923 ADDMSGO(3);
1924 ADDMSGO(EXTENDED_SDTR);
1925 if (ticks < 4) {
1926 ticks = 4;
1927 ADDMSGO(50);
1928 } else
1929 ADDMSGO(MSGI(3));
1930
1931 if (MSGI(4) > 8)
1932 MSGI(4) = 8;
1933
1934 ADDMSGO(MSGI(4));
1935
1936 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1937 } else {
1938
1939 printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
1940 ADDMSGO(MESSAGE_REJECT);
1941 }
1942
1943 SYNCNEG=2;
1944 SETRATE(SYNCRATE);
1945 }
1946 break;
1947
1948 case BUS_DEVICE_RESET:
1949 {
1950 int i;
1951
1952 for(i=0; i<8; i++) {
1953 HOSTDATA(shpnt)->syncrate[i]=0;
1954 HOSTDATA(shpnt)->syncneg[i]=0;
1955 }
1956
1957 }
1958 break;
1959
1960 case EXTENDED_MODIFY_DATA_POINTER:
1961 case EXTENDED_EXTENDED_IDENTIFY:
1962 case EXTENDED_WDTR:
1963 default:
1964 ADDMSGO(MESSAGE_REJECT);
1965 break;
1966 }
1967 break;
1968 }
1969
1970 MSGILEN=0;
1971 }
1972}
1973
1974static void msgi_end(struct Scsi_Host *shpnt)
1975{
1976 if(MSGILEN>0)
1977 printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
1978
1979 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
1980 DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
1981 SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
1982 }
1983}
1984
1985
1986
1987
1988
1989static void msgo_init(struct Scsi_Host *shpnt)
1990{
1991 if(MSGOLEN==0) {
1992 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
1993 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1994 } else {
1995 printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
1996 ADDMSGO(MESSAGE_REJECT);
1997 }
1998 }
1999
2000#if defined(AHA152X_DEBUG)
2001 if(HOSTDATA(shpnt)->debug & debug_msgo) {
2002 int i;
2003
2004 printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
2005 for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
2006 ;
2007 printk(")\n");
2008 }
2009#endif
2010}
2011
2012
2013
2014
2015
2016static void msgo_run(struct Scsi_Host *shpnt)
2017{
2018 if(MSGO_I==MSGOLEN)
2019 DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2020
2021 while(MSGO_I<MSGOLEN) {
2022 DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
2023
2024 if(TESTLO(SSTAT0, SPIORDY)) {
2025 DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2026 return;
2027 }
2028
2029 if (MSGO_I==MSGOLEN-1) {
2030
2031 SETPORT(SSTAT1, CLRATNO);
2032 }
2033
2034
2035 if (MSGO(MSGO_I) & IDENTIFY_BASE)
2036 CURRENT_SC->SCp.phase |= identified;
2037
2038 if (MSGO(MSGO_I)==ABORT)
2039 CURRENT_SC->SCp.phase |= aborted;
2040
2041 if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
2042 CURRENT_SC->SCp.phase |= resetted;
2043
2044 SETPORT(SCSIDAT, MSGO(MSGO_I++));
2045 }
2046}
2047
2048static void msgo_end(struct Scsi_Host *shpnt)
2049{
2050 if(MSGO_I<MSGOLEN) {
2051 printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2052 if(SYNCNEG==1) {
2053 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
2054 SYNCNEG=2;
2055 }
2056 }
2057
2058 MSGO_I = 0;
2059 MSGOLEN = 0;
2060}
2061
2062
2063
2064
2065
2066static void cmd_init(struct Scsi_Host *shpnt)
2067{
2068 if (CURRENT_SC->SCp.sent_command) {
2069 printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
2070 done(shpnt, DID_ERROR << 16);
2071 return;
2072 }
2073
2074#if defined(AHA152X_DEBUG)
2075 if (HOSTDATA(shpnt)->debug & debug_cmd) {
2076 printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
2077 __scsi_print_command(CURRENT_SC->cmnd);
2078 }
2079#endif
2080
2081 CMD_I=0;
2082}
2083
2084
2085
2086
2087
2088static void cmd_run(struct Scsi_Host *shpnt)
2089{
2090 if(CMD_I==CURRENT_SC->cmd_len) {
2091 DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2092 disp_ports(shpnt);
2093 }
2094
2095 while(CMD_I<CURRENT_SC->cmd_len) {
2096 DPRINTK(debug_cmd, DEBUG_LEAD "command byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), CURRENT_SC->cmnd[CMD_I], CMD_I, CURRENT_SC->cmd_len);
2097
2098 if(TESTLO(SSTAT0, SPIORDY)) {
2099 DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2100 return;
2101 }
2102
2103 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
2104 }
2105}
2106
2107static void cmd_end(struct Scsi_Host *shpnt)
2108{
2109 if(CMD_I<CURRENT_SC->cmd_len)
2110 printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2111 else
2112 CURRENT_SC->SCp.sent_command++;
2113}
2114
2115
2116
2117
2118
2119static void status_run(struct Scsi_Host *shpnt)
2120{
2121 if(TESTLO(SSTAT0,SPIORDY)) {
2122 DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2123 return;
2124 }
2125
2126 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
2127
2128#if defined(AHA152X_DEBUG)
2129 if (HOSTDATA(shpnt)->debug & debug_status) {
2130 printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
2131 scsi_print_status(CURRENT_SC->SCp.Status);
2132 printk("\n");
2133 }
2134#endif
2135}
2136
2137
2138
2139
2140
2141static void datai_init(struct Scsi_Host *shpnt)
2142{
2143 SETPORT(DMACNTRL0, RSTFIFO);
2144 SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
2145
2146 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2147 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2148
2149 SETPORT(SIMODE0, 0);
2150 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
2151
2152 DATA_LEN=0;
2153 DPRINTK(debug_datai,
2154 DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
2155 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2156 scsi_get_resid(CURRENT_SC));
2157}
2158
2159static void datai_run(struct Scsi_Host *shpnt)
2160{
2161 unsigned long the_time;
2162 int fifodata, data_count;
2163
2164
2165
2166
2167
2168 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
2169
2170
2171
2172
2173 the_time=jiffies + 100*HZ;
2174 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
2175 barrier();
2176
2177 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
2178 printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
2179 disp_ports(shpnt);
2180 break;
2181 }
2182
2183 if(TESTHI(DMASTAT, DFIFOFULL)) {
2184 fifodata = 128;
2185 } else {
2186 the_time=jiffies + 100*HZ;
2187 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
2188 barrier();
2189
2190 if(TESTLO(SSTAT2, SEMPTY)) {
2191 printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
2192 disp_ports(shpnt);
2193 break;
2194 }
2195
2196 fifodata = GETPORT(FIFOSTAT);
2197 }
2198
2199 if(CURRENT_SC->SCp.this_residual>0) {
2200 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
2201 data_count = fifodata>CURRENT_SC->SCp.this_residual ?
2202 CURRENT_SC->SCp.this_residual :
2203 fifodata;
2204 fifodata -= data_count;
2205
2206 if(data_count & 1) {
2207 DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
2208 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2209 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
2210 CURRENT_SC->SCp.this_residual--;
2211 DATA_LEN++;
2212 SETPORT(DMACNTRL0, ENDMA);
2213 }
2214
2215 if(data_count > 1) {
2216 DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
2217 data_count >>= 1;
2218 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2219 CURRENT_SC->SCp.ptr += 2 * data_count;
2220 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2221 DATA_LEN += 2 * data_count;
2222 }
2223
2224 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2225
2226 CURRENT_SC->SCp.buffers_residual--;
2227 CURRENT_SC->SCp.buffer++;
2228 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2229 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2230 }
2231 }
2232 } else if(fifodata>0) {
2233 printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
2234 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2235 while(fifodata>0) {
2236 int data;
2237 data=GETPORT(DATAPORT);
2238 DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
2239 fifodata--;
2240 DATA_LEN++;
2241 }
2242 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2243 }
2244 }
2245
2246 if(TESTLO(DMASTAT, INTSTAT) ||
2247 TESTLO(DMASTAT, DFIFOEMP) ||
2248 TESTLO(SSTAT2, SEMPTY) ||
2249 GETPORT(FIFOSTAT)>0) {
2250
2251
2252
2253
2254 printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
2255 disp_ports(shpnt);
2256 }
2257
2258 if(DATA_LEN!=GETSTCNT()) {
2259 printk(ERR_LEAD
2260 "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
2261 CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
2262 disp_ports(shpnt);
2263 mdelay(10000);
2264 }
2265}
2266
2267static void datai_end(struct Scsi_Host *shpnt)
2268{
2269 CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
2270
2271 DPRINTK(debug_datai,
2272 DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
2273 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2274 scsi_get_resid(CURRENT_SC), GETSTCNT());
2275
2276 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2277 SETPORT(DMACNTRL0, 0);
2278}
2279
2280
2281
2282
2283
2284static void datao_init(struct Scsi_Host *shpnt)
2285{
2286 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
2287 SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
2288
2289 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2290 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2291
2292 SETPORT(SIMODE0, 0);
2293 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
2294
2295 DATA_LEN = scsi_get_resid(CURRENT_SC);
2296
2297 DPRINTK(debug_datao,
2298 DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
2299 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2300 scsi_get_resid(CURRENT_SC));
2301}
2302
2303static void datao_run(struct Scsi_Host *shpnt)
2304{
2305 unsigned long the_time;
2306 int data_count;
2307
2308
2309 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
2310 data_count = 128;
2311 if(data_count > CURRENT_SC->SCp.this_residual)
2312 data_count=CURRENT_SC->SCp.this_residual;
2313
2314 if(TESTLO(DMASTAT, DFIFOEMP)) {
2315 printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
2316 disp_ports(shpnt);
2317 break;
2318 }
2319
2320 if(data_count & 1) {
2321 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
2322 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
2323 CURRENT_SC->SCp.this_residual--;
2324 CMD_INC_RESID(CURRENT_SC, -1);
2325 SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
2326 }
2327
2328 if(data_count > 1) {
2329 data_count >>= 1;
2330 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2331 CURRENT_SC->SCp.ptr += 2 * data_count;
2332 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2333 CMD_INC_RESID(CURRENT_SC, -2 * data_count);
2334 }
2335
2336 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2337
2338 CURRENT_SC->SCp.buffers_residual--;
2339 CURRENT_SC->SCp.buffer++;
2340 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2341 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2342 }
2343
2344 the_time=jiffies + 100*HZ;
2345 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
2346 barrier();
2347
2348 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
2349 printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
2350 disp_ports(shpnt);
2351 break;
2352 }
2353 }
2354}
2355
2356static void datao_end(struct Scsi_Host *shpnt)
2357{
2358 if(TESTLO(DMASTAT, DFIFOEMP)) {
2359 int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
2360 GETSTCNT();
2361
2362 DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
2363 CMDINFO(CURRENT_SC),
2364 data_count,
2365 DATA_LEN - scsi_get_resid(CURRENT_SC),
2366 GETSTCNT());
2367
2368 CMD_INC_RESID(CURRENT_SC, data_count);
2369
2370 data_count -= CURRENT_SC->SCp.ptr -
2371 SG_ADDRESS(CURRENT_SC->SCp.buffer);
2372 while(data_count>0) {
2373 CURRENT_SC->SCp.buffer--;
2374 CURRENT_SC->SCp.buffers_residual++;
2375 data_count -= CURRENT_SC->SCp.buffer->length;
2376 }
2377 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
2378 data_count;
2379 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
2380 data_count;
2381 }
2382
2383 DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
2384 CMDINFO(CURRENT_SC),
2385 scsi_bufflen(CURRENT_SC),
2386 scsi_get_resid(CURRENT_SC),
2387 GETSTCNT());
2388
2389 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
2390 SETPORT(SXFRCTL0, CH1);
2391
2392 SETPORT(DMACNTRL0, 0);
2393}
2394
2395
2396
2397
2398
2399static int update_state(struct Scsi_Host *shpnt)
2400{
2401 int dataphase=0;
2402 unsigned int stat0 = GETPORT(SSTAT0);
2403 unsigned int stat1 = GETPORT(SSTAT1);
2404
2405 PREVSTATE = STATE;
2406 STATE=unknown;
2407
2408 if(stat1 & SCSIRSTI) {
2409 STATE=rsti;
2410 SETPORT(SCSISEQ,0);
2411 SETPORT(SSTAT1,SCSIRSTI);
2412 } else if(stat0 & SELDI && PREVSTATE==busfree) {
2413 STATE=seldi;
2414 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
2415 STATE=seldo;
2416 } else if(stat1 & SELTO) {
2417 STATE=selto;
2418 } else if(stat1 & BUSFREE) {
2419 STATE=busfree;
2420 SETPORT(SSTAT1,BUSFREE);
2421 } else if(stat1 & SCSIPERR) {
2422 STATE=parerr;
2423 SETPORT(SSTAT1,SCSIPERR);
2424 } else if(stat1 & REQINIT) {
2425 switch(GETPORT(SCSISIG) & P_MASK) {
2426 case P_MSGI: STATE=msgi; break;
2427 case P_MSGO: STATE=msgo; break;
2428 case P_DATAO: STATE=datao; break;
2429 case P_DATAI: STATE=datai; break;
2430 case P_STATUS: STATE=status; break;
2431 case P_CMD: STATE=cmd; break;
2432 }
2433 dataphase=1;
2434 }
2435
2436 if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
2437 printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
2438 disp_ports(shpnt);
2439 }
2440
2441 if(STATE!=PREVSTATE) {
2442 LASTSTATE=PREVSTATE;
2443 }
2444
2445 return dataphase;
2446}
2447
2448
2449
2450
2451
2452
2453
2454static void parerr_run(struct Scsi_Host *shpnt)
2455{
2456 printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
2457 done(shpnt, DID_PARITY << 16);
2458}
2459
2460
2461
2462
2463
2464static void rsti_run(struct Scsi_Host *shpnt)
2465{
2466 Scsi_Cmnd *ptr;
2467
2468 printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
2469
2470 ptr=DISCONNECTED_SC;
2471 while(ptr) {
2472 Scsi_Cmnd *next = SCNEXT(ptr);
2473
2474 if (!ptr->device->soft_reset) {
2475 remove_SC(&DISCONNECTED_SC, ptr);
2476
2477 kfree(ptr->host_scribble);
2478 ptr->host_scribble=NULL;
2479
2480 ptr->result = DID_RESET << 16;
2481 ptr->scsi_done(ptr);
2482 }
2483
2484 ptr = next;
2485 }
2486
2487 if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
2488 done(shpnt, DID_RESET << 16 );
2489}
2490
2491
2492
2493
2494
2495
2496static void is_complete(struct Scsi_Host *shpnt)
2497{
2498 int dataphase;
2499 unsigned long flags;
2500 int pending;
2501
2502 if(!shpnt)
2503 return;
2504
2505 DO_LOCK(flags);
2506
2507 if( HOSTDATA(shpnt)->service==0 ) {
2508 DO_UNLOCK(flags);
2509 return;
2510 }
2511
2512 HOSTDATA(shpnt)->service = 0;
2513
2514 if(HOSTDATA(shpnt)->in_intr) {
2515 DO_UNLOCK(flags);
2516
2517 aha152x_error(shpnt, "bottom-half already running!?");
2518 }
2519 HOSTDATA(shpnt)->in_intr++;
2520
2521
2522
2523
2524
2525 do {
2526 unsigned long start = jiffies;
2527 DO_UNLOCK(flags);
2528
2529 dataphase=update_state(shpnt);
2530
2531 DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2532
2533
2534
2535
2536
2537 if(PREVSTATE!=STATE && states[PREVSTATE].end)
2538 states[PREVSTATE].end(shpnt);
2539
2540
2541
2542
2543
2544
2545 if(states[PREVSTATE].spio && !states[STATE].spio) {
2546 SETPORT(SXFRCTL0, CH1);
2547 SETPORT(DMACNTRL0, 0);
2548 if(CURRENT_SC)
2549 CURRENT_SC->SCp.phase &= ~spiordy;
2550 }
2551
2552
2553
2554
2555
2556 if(dataphase) {
2557 SETPORT(SSTAT0, REQINIT);
2558 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
2559 SETPORT(SSTAT1, PHASECHG);
2560 }
2561
2562
2563
2564
2565
2566
2567 if(!states[PREVSTATE].spio && states[STATE].spio) {
2568 SETPORT(DMACNTRL0, 0);
2569 SETPORT(SXFRCTL0, CH1|SPIOEN);
2570 if(CURRENT_SC)
2571 CURRENT_SC->SCp.phase |= spiordy;
2572 }
2573
2574
2575
2576
2577
2578 if(PREVSTATE!=STATE && states[STATE].init)
2579 states[STATE].init(shpnt);
2580
2581
2582
2583
2584
2585 if(states[STATE].run)
2586 states[STATE].run(shpnt);
2587 else
2588 printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
2589
2590
2591
2592
2593
2594
2595
2596 DO_LOCK(flags);
2597 pending=setup_expected_interrupts(shpnt);
2598#if defined(AHA152X_STAT)
2599 HOSTDATA(shpnt)->count[STATE]++;
2600 if(PREVSTATE!=STATE)
2601 HOSTDATA(shpnt)->count_trans[STATE]++;
2602 HOSTDATA(shpnt)->time[STATE] += jiffies-start;
2603#endif
2604
2605 DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2606 } while(pending);
2607
2608
2609
2610
2611
2612 HOSTDATA(shpnt)->in_intr--;
2613 SETBITS(DMACNTRL0, INTEN);
2614 DO_UNLOCK(flags);
2615}
2616
2617
2618
2619
2620
2621static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
2622{
2623 printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
2624 show_queues(shpnt);
2625 panic("aha152x panic\n");
2626}
2627
2628
2629
2630
2631static void disp_ports(struct Scsi_Host *shpnt)
2632{
2633#if defined(AHA152X_DEBUG)
2634 int s;
2635
2636 printk("\n%s: %s(%s) ",
2637 CURRENT_SC ? "busy" : "waiting",
2638 states[STATE].name,
2639 states[PREVSTATE].name);
2640
2641 s = GETPORT(SCSISEQ);
2642 printk("SCSISEQ( ");
2643 if (s & TEMODEO)
2644 printk("TARGET MODE ");
2645 if (s & ENSELO)
2646 printk("SELO ");
2647 if (s & ENSELI)
2648 printk("SELI ");
2649 if (s & ENRESELI)
2650 printk("RESELI ");
2651 if (s & ENAUTOATNO)
2652 printk("AUTOATNO ");
2653 if (s & ENAUTOATNI)
2654 printk("AUTOATNI ");
2655 if (s & ENAUTOATNP)
2656 printk("AUTOATNP ");
2657 if (s & SCSIRSTO)
2658 printk("SCSIRSTO ");
2659 printk(");");
2660
2661 printk(" SCSISIG(");
2662 s = GETPORT(SCSISIG);
2663 switch (s & P_MASK) {
2664 case P_DATAO:
2665 printk("DATA OUT");
2666 break;
2667 case P_DATAI:
2668 printk("DATA IN");
2669 break;
2670 case P_CMD:
2671 printk("COMMAND");
2672 break;
2673 case P_STATUS:
2674 printk("STATUS");
2675 break;
2676 case P_MSGO:
2677 printk("MESSAGE OUT");
2678 break;
2679 case P_MSGI:
2680 printk("MESSAGE IN");
2681 break;
2682 default:
2683 printk("*invalid*");
2684 break;
2685 }
2686
2687 printk("); ");
2688
2689 printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
2690
2691 printk("SSTAT( ");
2692 s = GETPORT(SSTAT0);
2693 if (s & TARGET)
2694 printk("TARGET ");
2695 if (s & SELDO)
2696 printk("SELDO ");
2697 if (s & SELDI)
2698 printk("SELDI ");
2699 if (s & SELINGO)
2700 printk("SELINGO ");
2701 if (s & SWRAP)
2702 printk("SWRAP ");
2703 if (s & SDONE)
2704 printk("SDONE ");
2705 if (s & SPIORDY)
2706 printk("SPIORDY ");
2707 if (s & DMADONE)
2708 printk("DMADONE ");
2709
2710 s = GETPORT(SSTAT1);
2711 if (s & SELTO)
2712 printk("SELTO ");
2713 if (s & ATNTARG)
2714 printk("ATNTARG ");
2715 if (s & SCSIRSTI)
2716 printk("SCSIRSTI ");
2717 if (s & PHASEMIS)
2718 printk("PHASEMIS ");
2719 if (s & BUSFREE)
2720 printk("BUSFREE ");
2721 if (s & SCSIPERR)
2722 printk("SCSIPERR ");
2723 if (s & PHASECHG)
2724 printk("PHASECHG ");
2725 if (s & REQINIT)
2726 printk("REQINIT ");
2727 printk("); ");
2728
2729
2730 printk("SSTAT( ");
2731
2732 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
2733
2734 if (s & TARGET)
2735 printk("TARGET ");
2736 if (s & SELDO)
2737 printk("SELDO ");
2738 if (s & SELDI)
2739 printk("SELDI ");
2740 if (s & SELINGO)
2741 printk("SELINGO ");
2742 if (s & SWRAP)
2743 printk("SWRAP ");
2744 if (s & SDONE)
2745 printk("SDONE ");
2746 if (s & SPIORDY)
2747 printk("SPIORDY ");
2748 if (s & DMADONE)
2749 printk("DMADONE ");
2750
2751 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
2752
2753 if (s & SELTO)
2754 printk("SELTO ");
2755 if (s & ATNTARG)
2756 printk("ATNTARG ");
2757 if (s & SCSIRSTI)
2758 printk("SCSIRSTI ");
2759 if (s & PHASEMIS)
2760 printk("PHASEMIS ");
2761 if (s & BUSFREE)
2762 printk("BUSFREE ");
2763 if (s & SCSIPERR)
2764 printk("SCSIPERR ");
2765 if (s & PHASECHG)
2766 printk("PHASECHG ");
2767 if (s & REQINIT)
2768 printk("REQINIT ");
2769 printk("); ");
2770
2771 printk("SXFRCTL0( ");
2772
2773 s = GETPORT(SXFRCTL0);
2774 if (s & SCSIEN)
2775 printk("SCSIEN ");
2776 if (s & DMAEN)
2777 printk("DMAEN ");
2778 if (s & CH1)
2779 printk("CH1 ");
2780 if (s & CLRSTCNT)
2781 printk("CLRSTCNT ");
2782 if (s & SPIOEN)
2783 printk("SPIOEN ");
2784 if (s & CLRCH1)
2785 printk("CLRCH1 ");
2786 printk("); ");
2787
2788 printk("SIGNAL( ");
2789
2790 s = GETPORT(SCSISIG);
2791 if (s & SIG_ATNI)
2792 printk("ATNI ");
2793 if (s & SIG_SELI)
2794 printk("SELI ");
2795 if (s & SIG_BSYI)
2796 printk("BSYI ");
2797 if (s & SIG_REQI)
2798 printk("REQI ");
2799 if (s & SIG_ACKI)
2800 printk("ACKI ");
2801 printk("); ");
2802
2803 printk("SELID (%02x), ", GETPORT(SELID));
2804
2805 printk("STCNT (%d), ", GETSTCNT());
2806
2807 printk("SSTAT2( ");
2808
2809 s = GETPORT(SSTAT2);
2810 if (s & SOFFSET)
2811 printk("SOFFSET ");
2812 if (s & SEMPTY)
2813 printk("SEMPTY ");
2814 if (s & SFULL)
2815 printk("SFULL ");
2816 printk("); SFCNT (%d); ", s & (SFULL | SFCNT));
2817
2818 s = GETPORT(SSTAT3);
2819 printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
2820
2821 printk("SSTAT4( ");
2822 s = GETPORT(SSTAT4);
2823 if (s & SYNCERR)
2824 printk("SYNCERR ");
2825 if (s & FWERR)
2826 printk("FWERR ");
2827 if (s & FRERR)
2828 printk("FRERR ");
2829 printk("); ");
2830
2831 printk("DMACNTRL0( ");
2832 s = GETPORT(DMACNTRL0);
2833 printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
2834 printk("%s ", s & DMA ? "DMA" : "PIO");
2835 printk("%s ", s & WRITE_READ ? "WRITE" : "READ");
2836 if (s & ENDMA)
2837 printk("ENDMA ");
2838 if (s & INTEN)
2839 printk("INTEN ");
2840 if (s & RSTFIFO)
2841 printk("RSTFIFO ");
2842 if (s & SWINT)
2843 printk("SWINT ");
2844 printk("); ");
2845
2846 printk("DMASTAT( ");
2847 s = GETPORT(DMASTAT);
2848 if (s & ATDONE)
2849 printk("ATDONE ");
2850 if (s & WORDRDY)
2851 printk("WORDRDY ");
2852 if (s & DFIFOFULL)
2853 printk("DFIFOFULL ");
2854 if (s & DFIFOEMP)
2855 printk("DFIFOEMP ");
2856 printk(")\n");
2857#endif
2858}
2859
2860
2861
2862
2863static void disp_enintr(struct Scsi_Host *shpnt)
2864{
2865 int s;
2866
2867 printk(KERN_DEBUG "enabled interrupts ( ");
2868
2869 s = GETPORT(SIMODE0);
2870 if (s & ENSELDO)
2871 printk("ENSELDO ");
2872 if (s & ENSELDI)
2873 printk("ENSELDI ");
2874 if (s & ENSELINGO)
2875 printk("ENSELINGO ");
2876 if (s & ENSWRAP)
2877 printk("ENSWRAP ");
2878 if (s & ENSDONE)
2879 printk("ENSDONE ");
2880 if (s & ENSPIORDY)
2881 printk("ENSPIORDY ");
2882 if (s & ENDMADONE)
2883 printk("ENDMADONE ");
2884
2885 s = GETPORT(SIMODE1);
2886 if (s & ENSELTIMO)
2887 printk("ENSELTIMO ");
2888 if (s & ENATNTARG)
2889 printk("ENATNTARG ");
2890 if (s & ENPHASEMIS)
2891 printk("ENPHASEMIS ");
2892 if (s & ENBUSFREE)
2893 printk("ENBUSFREE ");
2894 if (s & ENSCSIPERR)
2895 printk("ENSCSIPERR ");
2896 if (s & ENPHASECHG)
2897 printk("ENPHASECHG ");
2898 if (s & ENREQINIT)
2899 printk("ENREQINIT ");
2900 printk(")\n");
2901}
2902
2903
2904
2905
2906static void show_command(Scsi_Cmnd *ptr)
2907{
2908 scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
2909
2910 __scsi_print_command(ptr->cmnd);
2911
2912 printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
2913 scsi_bufflen(ptr), scsi_get_resid(ptr));
2914
2915 if (ptr->SCp.phase & not_issued)
2916 printk("not issued|");
2917 if (ptr->SCp.phase & selecting)
2918 printk("selecting|");
2919 if (ptr->SCp.phase & identified)
2920 printk("identified|");
2921 if (ptr->SCp.phase & disconnected)
2922 printk("disconnected|");
2923 if (ptr->SCp.phase & completed)
2924 printk("completed|");
2925 if (ptr->SCp.phase & spiordy)
2926 printk("spiordy|");
2927 if (ptr->SCp.phase & syncneg)
2928 printk("syncneg|");
2929 if (ptr->SCp.phase & aborted)
2930 printk("aborted|");
2931 if (ptr->SCp.phase & resetted)
2932 printk("resetted|");
2933 if( SCDATA(ptr) ) {
2934 printk("; next=0x%p\n", SCNEXT(ptr));
2935 } else {
2936 printk("; next=(host scribble NULL)\n");
2937 }
2938}
2939
2940
2941
2942
2943static void show_queues(struct Scsi_Host *shpnt)
2944{
2945 Scsi_Cmnd *ptr;
2946 unsigned long flags;
2947
2948 DO_LOCK(flags);
2949 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
2950 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
2951 show_command(ptr);
2952 DO_UNLOCK(flags);
2953
2954 printk(KERN_DEBUG "current_SC:\n");
2955 if (CURRENT_SC)
2956 show_command(CURRENT_SC);
2957 else
2958 printk(KERN_DEBUG "none\n");
2959
2960 printk(KERN_DEBUG "disconnected_SC:\n");
2961 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
2962 show_command(ptr);
2963
2964 disp_ports(shpnt);
2965 disp_enintr(shpnt);
2966}
2967
2968#undef SPRINTF
2969#define SPRINTF(args...) pos += sprintf(pos, ## args)
2970
2971static int get_command(char *pos, Scsi_Cmnd * ptr)
2972{
2973 char *start = pos;
2974 int i;
2975
2976 SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ",
2977 (unsigned int) ptr, ptr->device->id, ptr->device->lun);
2978
2979 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
2980 SPRINTF("0x%02x ", ptr->cmnd[i]);
2981
2982 SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
2983 scsi_get_resid(ptr), ptr->SCp.this_residual,
2984 ptr->SCp.buffers_residual);
2985
2986 if (ptr->SCp.phase & not_issued)
2987 SPRINTF("not issued|");
2988 if (ptr->SCp.phase & selecting)
2989 SPRINTF("selecting|");
2990 if (ptr->SCp.phase & disconnected)
2991 SPRINTF("disconnected|");
2992 if (ptr->SCp.phase & aborted)
2993 SPRINTF("aborted|");
2994 if (ptr->SCp.phase & identified)
2995 SPRINTF("identified|");
2996 if (ptr->SCp.phase & completed)
2997 SPRINTF("completed|");
2998 if (ptr->SCp.phase & spiordy)
2999 SPRINTF("spiordy|");
3000 if (ptr->SCp.phase & syncneg)
3001 SPRINTF("syncneg|");
3002 SPRINTF("; next=0x%p\n", SCNEXT(ptr));
3003
3004 return (pos - start);
3005}
3006
3007static int get_ports(struct Scsi_Host *shpnt, char *pos)
3008{
3009 char *start = pos;
3010 int s;
3011
3012 SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
3013
3014 s = GETPORT(SCSISEQ);
3015 SPRINTF("SCSISEQ( ");
3016 if (s & TEMODEO)
3017 SPRINTF("TARGET MODE ");
3018 if (s & ENSELO)
3019 SPRINTF("SELO ");
3020 if (s & ENSELI)
3021 SPRINTF("SELI ");
3022 if (s & ENRESELI)
3023 SPRINTF("RESELI ");
3024 if (s & ENAUTOATNO)
3025 SPRINTF("AUTOATNO ");
3026 if (s & ENAUTOATNI)
3027 SPRINTF("AUTOATNI ");
3028 if (s & ENAUTOATNP)
3029 SPRINTF("AUTOATNP ");
3030 if (s & SCSIRSTO)
3031 SPRINTF("SCSIRSTO ");
3032 SPRINTF(");");
3033
3034 SPRINTF(" SCSISIG(");
3035 s = GETPORT(SCSISIG);
3036 switch (s & P_MASK) {
3037 case P_DATAO:
3038 SPRINTF("DATA OUT");
3039 break;
3040 case P_DATAI:
3041 SPRINTF("DATA IN");
3042 break;
3043 case P_CMD:
3044 SPRINTF("COMMAND");
3045 break;
3046 case P_STATUS:
3047 SPRINTF("STATUS");
3048 break;
3049 case P_MSGO:
3050 SPRINTF("MESSAGE OUT");
3051 break;
3052 case P_MSGI:
3053 SPRINTF("MESSAGE IN");
3054 break;
3055 default:
3056 SPRINTF("*invalid*");
3057 break;
3058 }
3059
3060 SPRINTF("); ");
3061
3062 SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
3063
3064 SPRINTF("SSTAT( ");
3065 s = GETPORT(SSTAT0);
3066 if (s & TARGET)
3067 SPRINTF("TARGET ");
3068 if (s & SELDO)
3069 SPRINTF("SELDO ");
3070 if (s & SELDI)
3071 SPRINTF("SELDI ");
3072 if (s & SELINGO)
3073 SPRINTF("SELINGO ");
3074 if (s & SWRAP)
3075 SPRINTF("SWRAP ");
3076 if (s & SDONE)
3077 SPRINTF("SDONE ");
3078 if (s & SPIORDY)
3079 SPRINTF("SPIORDY ");
3080 if (s & DMADONE)
3081 SPRINTF("DMADONE ");
3082
3083 s = GETPORT(SSTAT1);
3084 if (s & SELTO)
3085 SPRINTF("SELTO ");
3086 if (s & ATNTARG)
3087 SPRINTF("ATNTARG ");
3088 if (s & SCSIRSTI)
3089 SPRINTF("SCSIRSTI ");
3090 if (s & PHASEMIS)
3091 SPRINTF("PHASEMIS ");
3092 if (s & BUSFREE)
3093 SPRINTF("BUSFREE ");
3094 if (s & SCSIPERR)
3095 SPRINTF("SCSIPERR ");
3096 if (s & PHASECHG)
3097 SPRINTF("PHASECHG ");
3098 if (s & REQINIT)
3099 SPRINTF("REQINIT ");
3100 SPRINTF("); ");
3101
3102
3103 SPRINTF("SSTAT( ");
3104
3105 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
3106
3107 if (s & TARGET)
3108 SPRINTF("TARGET ");
3109 if (s & SELDO)
3110 SPRINTF("SELDO ");
3111 if (s & SELDI)
3112 SPRINTF("SELDI ");
3113 if (s & SELINGO)
3114 SPRINTF("SELINGO ");
3115 if (s & SWRAP)
3116 SPRINTF("SWRAP ");
3117 if (s & SDONE)
3118 SPRINTF("SDONE ");
3119 if (s & SPIORDY)
3120 SPRINTF("SPIORDY ");
3121 if (s & DMADONE)
3122 SPRINTF("DMADONE ");
3123
3124 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
3125
3126 if (s & SELTO)
3127 SPRINTF("SELTO ");
3128 if (s & ATNTARG)
3129 SPRINTF("ATNTARG ");
3130 if (s & SCSIRSTI)
3131 SPRINTF("SCSIRSTI ");
3132 if (s & PHASEMIS)
3133 SPRINTF("PHASEMIS ");
3134 if (s & BUSFREE)
3135 SPRINTF("BUSFREE ");
3136 if (s & SCSIPERR)
3137 SPRINTF("SCSIPERR ");
3138 if (s & PHASECHG)
3139 SPRINTF("PHASECHG ");
3140 if (s & REQINIT)
3141 SPRINTF("REQINIT ");
3142 SPRINTF("); ");
3143
3144 SPRINTF("SXFRCTL0( ");
3145
3146 s = GETPORT(SXFRCTL0);
3147 if (s & SCSIEN)
3148 SPRINTF("SCSIEN ");
3149 if (s & DMAEN)
3150 SPRINTF("DMAEN ");
3151 if (s & CH1)
3152 SPRINTF("CH1 ");
3153 if (s & CLRSTCNT)
3154 SPRINTF("CLRSTCNT ");
3155 if (s & SPIOEN)
3156 SPRINTF("SPIOEN ");
3157 if (s & CLRCH1)
3158 SPRINTF("CLRCH1 ");
3159 SPRINTF("); ");
3160
3161 SPRINTF("SIGNAL( ");
3162
3163 s = GETPORT(SCSISIG);
3164 if (s & SIG_ATNI)
3165 SPRINTF("ATNI ");
3166 if (s & SIG_SELI)
3167 SPRINTF("SELI ");
3168 if (s & SIG_BSYI)
3169 SPRINTF("BSYI ");
3170 if (s & SIG_REQI)
3171 SPRINTF("REQI ");
3172 if (s & SIG_ACKI)
3173 SPRINTF("ACKI ");
3174 SPRINTF("); ");
3175
3176 SPRINTF("SELID(%02x), ", GETPORT(SELID));
3177
3178 SPRINTF("STCNT(%d), ", GETSTCNT());
3179
3180 SPRINTF("SSTAT2( ");
3181
3182 s = GETPORT(SSTAT2);
3183 if (s & SOFFSET)
3184 SPRINTF("SOFFSET ");
3185 if (s & SEMPTY)
3186 SPRINTF("SEMPTY ");
3187 if (s & SFULL)
3188 SPRINTF("SFULL ");
3189 SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT));
3190
3191 s = GETPORT(SSTAT3);
3192 SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
3193
3194 SPRINTF("SSTAT4( ");
3195 s = GETPORT(SSTAT4);
3196 if (s & SYNCERR)
3197 SPRINTF("SYNCERR ");
3198 if (s & FWERR)
3199 SPRINTF("FWERR ");
3200 if (s & FRERR)
3201 SPRINTF("FRERR ");
3202 SPRINTF("); ");
3203
3204 SPRINTF("DMACNTRL0( ");
3205 s = GETPORT(DMACNTRL0);
3206 SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT");
3207 SPRINTF("%s ", s & DMA ? "DMA" : "PIO");
3208 SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ");
3209 if (s & ENDMA)
3210 SPRINTF("ENDMA ");
3211 if (s & INTEN)
3212 SPRINTF("INTEN ");
3213 if (s & RSTFIFO)
3214 SPRINTF("RSTFIFO ");
3215 if (s & SWINT)
3216 SPRINTF("SWINT ");
3217 SPRINTF("); ");
3218
3219 SPRINTF("DMASTAT( ");
3220 s = GETPORT(DMASTAT);
3221 if (s & ATDONE)
3222 SPRINTF("ATDONE ");
3223 if (s & WORDRDY)
3224 SPRINTF("WORDRDY ");
3225 if (s & DFIFOFULL)
3226 SPRINTF("DFIFOFULL ");
3227 if (s & DFIFOEMP)
3228 SPRINTF("DFIFOEMP ");
3229 SPRINTF(")\n");
3230
3231 SPRINTF("enabled interrupts( ");
3232
3233 s = GETPORT(SIMODE0);
3234 if (s & ENSELDO)
3235 SPRINTF("ENSELDO ");
3236 if (s & ENSELDI)
3237 SPRINTF("ENSELDI ");
3238 if (s & ENSELINGO)
3239 SPRINTF("ENSELINGO ");
3240 if (s & ENSWRAP)
3241 SPRINTF("ENSWRAP ");
3242 if (s & ENSDONE)
3243 SPRINTF("ENSDONE ");
3244 if (s & ENSPIORDY)
3245 SPRINTF("ENSPIORDY ");
3246 if (s & ENDMADONE)
3247 SPRINTF("ENDMADONE ");
3248
3249 s = GETPORT(SIMODE1);
3250 if (s & ENSELTIMO)
3251 SPRINTF("ENSELTIMO ");
3252 if (s & ENATNTARG)
3253 SPRINTF("ENATNTARG ");
3254 if (s & ENPHASEMIS)
3255 SPRINTF("ENPHASEMIS ");
3256 if (s & ENBUSFREE)
3257 SPRINTF("ENBUSFREE ");
3258 if (s & ENSCSIPERR)
3259 SPRINTF("ENSCSIPERR ");
3260 if (s & ENPHASECHG)
3261 SPRINTF("ENPHASECHG ");
3262 if (s & ENREQINIT)
3263 SPRINTF("ENREQINIT ");
3264 SPRINTF(")\n");
3265
3266 return (pos - start);
3267}
3268
3269static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
3270{
3271 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
3272 return -EINVAL;
3273
3274#if defined(AHA152X_DEBUG)
3275 if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
3276 int debug = HOSTDATA(shpnt)->debug;
3277
3278 HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
3279
3280 printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
3281 } else
3282#endif
3283#if defined(AHA152X_STAT)
3284 if(length>13 && strncmp("reset", buffer+8, 5)==0) {
3285 int i;
3286
3287 HOSTDATA(shpnt)->total_commands=0;
3288 HOSTDATA(shpnt)->disconnections=0;
3289 HOSTDATA(shpnt)->busfree_without_any_action=0;
3290 HOSTDATA(shpnt)->busfree_without_old_command=0;
3291 HOSTDATA(shpnt)->busfree_without_new_command=0;
3292 HOSTDATA(shpnt)->busfree_without_done_command=0;
3293 HOSTDATA(shpnt)->busfree_with_check_condition=0;
3294 for (i = idle; i<maxstate; i++) {
3295 HOSTDATA(shpnt)->count[i]=0;
3296 HOSTDATA(shpnt)->count_trans[i]=0;
3297 HOSTDATA(shpnt)->time[i]=0;
3298 }
3299
3300 printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
3301
3302 } else
3303#endif
3304 {
3305 return -EINVAL;
3306 }
3307
3308
3309 return length;
3310}
3311
3312#undef SPRINTF
3313#define SPRINTF(args...) \
3314 do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
3315
3316static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
3317 off_t offset, int length, int inout)
3318{
3319 int i;
3320 char *pos = buffer;
3321 Scsi_Cmnd *ptr;
3322 unsigned long flags;
3323 int thislength;
3324
3325 DPRINTK(debug_procinfo,
3326 KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n",
3327 buffer, offset, length, shpnt->host_no, inout);
3328
3329
3330 if (inout)
3331 return aha152x_set_info(buffer, length, shpnt);
3332
3333 SPRINTF(AHA152X_REVID "\n");
3334
3335 SPRINTF("ioports 0x%04lx to 0x%04lx\n",
3336 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
3337 SPRINTF("interrupt 0x%02x\n", shpnt->irq);
3338 SPRINTF("disconnection/reconnection %s\n",
3339 RECONNECT ? "enabled" : "disabled");
3340 SPRINTF("parity checking %s\n",
3341 PARITY ? "enabled" : "disabled");
3342 SPRINTF("synchronous transfers %s\n",
3343 SYNCHRONOUS ? "enabled" : "disabled");
3344 SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
3345
3346 if(SYNCHRONOUS) {
3347 SPRINTF("synchronously operating targets (tick=50 ns):\n");
3348 for (i = 0; i < 8; i++)
3349 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f)
3350 SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n",
3351 i,
3352 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2),
3353 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
3354 HOSTDATA(shpnt)->syncrate[i] & 0x0f);
3355 }
3356#if defined(AHA152X_DEBUG)
3357#define PDEBUG(flags,txt) \
3358 if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
3359
3360 SPRINTF("enabled debugging options: ");
3361
3362 PDEBUG(debug_procinfo, "procinfo");
3363 PDEBUG(debug_queue, "queue");
3364 PDEBUG(debug_intr, "interrupt");
3365 PDEBUG(debug_selection, "selection");
3366 PDEBUG(debug_msgo, "message out");
3367 PDEBUG(debug_msgi, "message in");
3368 PDEBUG(debug_status, "status");
3369 PDEBUG(debug_cmd, "command");
3370 PDEBUG(debug_datai, "data in");
3371 PDEBUG(debug_datao, "data out");
3372 PDEBUG(debug_eh, "eh");
3373 PDEBUG(debug_locking, "locks");
3374 PDEBUG(debug_phases, "phases");
3375
3376 SPRINTF("\n");
3377#endif
3378
3379 SPRINTF("\nqueue status:\n");
3380 DO_LOCK(flags);
3381 if (ISSUE_SC) {
3382 SPRINTF("not yet issued commands:\n");
3383 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
3384 pos += get_command(pos, ptr);
3385 } else
3386 SPRINTF("no not yet issued commands\n");
3387 DO_UNLOCK(flags);
3388
3389 if (CURRENT_SC) {
3390 SPRINTF("current command:\n");
3391 pos += get_command(pos, CURRENT_SC);
3392 } else
3393 SPRINTF("no current command\n");
3394
3395 if (DISCONNECTED_SC) {
3396 SPRINTF("disconnected commands:\n");
3397 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
3398 pos += get_command(pos, ptr);
3399 } else
3400 SPRINTF("no disconnected commands\n");
3401
3402 pos += get_ports(shpnt, pos);
3403
3404#if defined(AHA152X_STAT)
3405 SPRINTF("statistics:\n"
3406 "total commands: %d\n"
3407 "disconnections: %d\n"
3408 "busfree with check condition: %d\n"
3409 "busfree without old command: %d\n"
3410 "busfree without new command: %d\n"
3411 "busfree without done command: %d\n"
3412 "busfree without any action: %d\n"
3413 "state "
3414 "transitions "
3415 "count "
3416 "time\n",
3417 HOSTDATA(shpnt)->total_commands,
3418 HOSTDATA(shpnt)->disconnections,
3419 HOSTDATA(shpnt)->busfree_with_check_condition,
3420 HOSTDATA(shpnt)->busfree_without_old_command,
3421 HOSTDATA(shpnt)->busfree_without_new_command,
3422 HOSTDATA(shpnt)->busfree_without_done_command,
3423 HOSTDATA(shpnt)->busfree_without_any_action);
3424 for(i=0; i<maxstate; i++) {
3425 SPRINTF("%-10s %-12d %-12d %-12ld\n",
3426 states[i].name,
3427 HOSTDATA(shpnt)->count_trans[i],
3428 HOSTDATA(shpnt)->count[i],
3429 HOSTDATA(shpnt)->time[i]);
3430 }
3431#endif
3432
3433 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos);
3434
3435 thislength = pos - (buffer + offset);
3436 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength);
3437
3438 if(thislength<0) {
3439 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n");
3440 *start = NULL;
3441 return 0;
3442 }
3443
3444 thislength = thislength<length ? thislength : length;
3445
3446 DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength);
3447
3448 *start = buffer + offset;
3449 return thislength < length ? thislength : length;
3450}
3451
3452static int aha152x_adjust_queue(struct scsi_device *device)
3453{
3454 blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
3455 return 0;
3456}
3457
3458static struct scsi_host_template aha152x_driver_template = {
3459 .module = THIS_MODULE,
3460 .name = AHA152X_REVID,
3461 .proc_name = "aha152x",
3462 .proc_info = aha152x_proc_info,
3463 .queuecommand = aha152x_queue,
3464 .eh_abort_handler = aha152x_abort,
3465 .eh_device_reset_handler = aha152x_device_reset,
3466 .eh_bus_reset_handler = aha152x_bus_reset,
3467 .eh_host_reset_handler = aha152x_host_reset,
3468 .bios_param = aha152x_biosparam,
3469 .can_queue = 1,
3470 .this_id = 7,
3471 .sg_tablesize = SG_ALL,
3472 .cmd_per_lun = 1,
3473 .use_clustering = DISABLE_CLUSTERING,
3474 .slave_alloc = aha152x_adjust_queue,
3475};
3476
3477#if !defined(PCMCIA)
3478static int setup_count;
3479static struct aha152x_setup setup[2];
3480
3481
3482static unsigned short ports[] = { 0x340, 0x140 };
3483
3484#if !defined(SKIP_BIOSTEST)
3485
3486static unsigned int addresses[] =
3487{
3488 0xdc000,
3489 0xc8000,
3490 0xcc000,
3491 0xd0000,
3492 0xd4000,
3493 0xd8000,
3494 0xe0000,
3495 0xeb800,
3496 0xf0000,
3497};
3498
3499
3500
3501
3502
3503
3504
3505
3506static struct signature {
3507 unsigned char *signature;
3508 int sig_offset;
3509 int sig_length;
3510} signatures[] =
3511{
3512 { "Adaptec AHA-1520 BIOS", 0x102e, 21 },
3513
3514 { "Adaptec AHA-1520B", 0x000b, 17 },
3515
3516 { "Adaptec AHA-1520B", 0x0026, 17 },
3517
3518 { "Adaptec ASW-B626 BIOS", 0x1029, 21 },
3519
3520 { "Adaptec BIOS: ASW-B626", 0x000f, 22 },
3521
3522 { "Adaptec ASW-B626 S2", 0x2e6c, 19 },
3523
3524 { "Adaptec BIOS:AIC-6360", 0x000c, 21 },
3525
3526 { "ScsiPro SP-360 BIOS", 0x2873, 19 },
3527
3528 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 },
3529
3530 { "Adaptec BIOS:AVA-282X", 0x000c, 21 },
3531
3532 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
3533
3534 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
3535
3536 { "DTC3520A Host Adapter BIOS", 0x318a, 26 },
3537
3538};
3539#endif
3540
3541
3542
3543
3544
3545static int aha152x_porttest(int io_port)
3546{
3547 int i;
3548
3549 SETPORT(io_port + O_DMACNTRL1, 0);
3550 for (i = 0; i < 16; i++)
3551 SETPORT(io_port + O_STACK, i);
3552
3553 SETPORT(io_port + O_DMACNTRL1, 0);
3554 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++)
3555 ;
3556
3557 return (i == 16);
3558}
3559
3560static int tc1550_porttest(int io_port)
3561{
3562 int i;
3563
3564 SETPORT(io_port + O_TC_DMACNTRL1, 0);
3565 for (i = 0; i < 16; i++)
3566 SETPORT(io_port + O_STACK, i);
3567
3568 SETPORT(io_port + O_TC_DMACNTRL1, 0);
3569 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
3570 ;
3571
3572 return (i == 16);
3573}
3574
3575
3576static int checksetup(struct aha152x_setup *setup)
3577{
3578 int i;
3579 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
3580 ;
3581
3582 if (i == ARRAY_SIZE(ports))
3583 return 0;
3584
3585 if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
3586 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
3587 return 0;
3588 }
3589
3590 if( aha152x_porttest(setup->io_port) ) {
3591 setup->tc1550=0;
3592 } else if( tc1550_porttest(setup->io_port) ) {
3593 setup->tc1550=1;
3594 } else {
3595 release_region(setup->io_port, IO_RANGE);
3596 return 0;
3597 }
3598
3599 release_region(setup->io_port, IO_RANGE);
3600
3601 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX))
3602 return 0;
3603
3604 if ((setup->scsiid < 0) || (setup->scsiid > 7))
3605 return 0;
3606
3607 if ((setup->reconnect < 0) || (setup->reconnect > 1))
3608 return 0;
3609
3610 if ((setup->parity < 0) || (setup->parity > 1))
3611 return 0;
3612
3613 if ((setup->synchronous < 0) || (setup->synchronous > 1))
3614 return 0;
3615
3616 if ((setup->ext_trans < 0) || (setup->ext_trans > 1))
3617 return 0;
3618
3619
3620 return 1;
3621}
3622
3623
3624static int __init aha152x_init(void)
3625{
3626 int i, j, ok;
3627#if defined(AUTOCONF)
3628 aha152x_config conf;
3629#endif
3630#ifdef __ISAPNP__
3631 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
3632#endif
3633
3634 if ( setup_count ) {
3635 printk(KERN_INFO "aha152x: processing commandline: ");
3636
3637 for (i = 0; i<setup_count; i++) {
3638 if (!checksetup(&setup[i])) {
3639 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
3640 printk(KERN_ERR "aha152x: invalid line\n");
3641 }
3642 }
3643 printk("ok\n");
3644 }
3645
3646#if defined(SETUP0)
3647 if (setup_count < ARRAY_SIZE(setup)) {
3648 struct aha152x_setup override = SETUP0;
3649
3650 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3651 if (!checksetup(&override)) {
3652 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3653 override.io_port,
3654 override.irq,
3655 override.scsiid,
3656 override.reconnect,
3657 override.parity,
3658 override.synchronous,
3659 override.delay,
3660 override.ext_trans);
3661 } else
3662 setup[setup_count++] = override;
3663 }
3664 }
3665#endif
3666
3667#if defined(SETUP1)
3668 if (setup_count < ARRAY_SIZE(setup)) {
3669 struct aha152x_setup override = SETUP1;
3670
3671 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3672 if (!checksetup(&override)) {
3673 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3674 override.io_port,
3675 override.irq,
3676 override.scsiid,
3677 override.reconnect,
3678 override.parity,
3679 override.synchronous,
3680 override.delay,
3681 override.ext_trans);
3682 } else
3683 setup[setup_count++] = override;
3684 }
3685 }
3686#endif
3687
3688#if defined(MODULE)
3689 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
3690 if(aha152x[0]!=0) {
3691 setup[setup_count].conf = "";
3692 setup[setup_count].io_port = aha152x[0];
3693 setup[setup_count].irq = aha152x[1];
3694 setup[setup_count].scsiid = aha152x[2];
3695 setup[setup_count].reconnect = aha152x[3];
3696 setup[setup_count].parity = aha152x[4];
3697 setup[setup_count].synchronous = aha152x[5];
3698 setup[setup_count].delay = aha152x[6];
3699 setup[setup_count].ext_trans = aha152x[7];
3700#if defined(AHA152X_DEBUG)
3701 setup[setup_count].debug = aha152x[8];
3702#endif
3703 } else if(io[0]!=0 || irq[0]!=0) {
3704 if(io[0]!=0) setup[setup_count].io_port = io[0];
3705 if(irq[0]!=0) setup[setup_count].irq = irq[0];
3706
3707 setup[setup_count].scsiid = scsiid[0];
3708 setup[setup_count].reconnect = reconnect[0];
3709 setup[setup_count].parity = parity[0];
3710 setup[setup_count].synchronous = sync[0];
3711 setup[setup_count].delay = delay[0];
3712 setup[setup_count].ext_trans = exttrans[0];
3713#if defined(AHA152X_DEBUG)
3714 setup[setup_count].debug = debug[0];
3715#endif
3716 }
3717
3718 if (checksetup(&setup[setup_count]))
3719 setup_count++;
3720 else
3721 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
3722 setup[setup_count].io_port,
3723 setup[setup_count].irq,
3724 setup[setup_count].scsiid,
3725 setup[setup_count].reconnect,
3726 setup[setup_count].parity,
3727 setup[setup_count].synchronous,
3728 setup[setup_count].delay,
3729 setup[setup_count].ext_trans);
3730 }
3731
3732 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
3733 if(aha152x1[0]!=0) {
3734 setup[setup_count].conf = "";
3735 setup[setup_count].io_port = aha152x1[0];
3736 setup[setup_count].irq = aha152x1[1];
3737 setup[setup_count].scsiid = aha152x1[2];
3738 setup[setup_count].reconnect = aha152x1[3];
3739 setup[setup_count].parity = aha152x1[4];
3740 setup[setup_count].synchronous = aha152x1[5];
3741 setup[setup_count].delay = aha152x1[6];
3742 setup[setup_count].ext_trans = aha152x1[7];
3743#if defined(AHA152X_DEBUG)
3744 setup[setup_count].debug = aha152x1[8];
3745#endif
3746 } else if(io[1]!=0 || irq[1]!=0) {
3747 if(io[1]!=0) setup[setup_count].io_port = io[1];
3748 if(irq[1]!=0) setup[setup_count].irq = irq[1];
3749
3750 setup[setup_count].scsiid = scsiid[1];
3751 setup[setup_count].reconnect = reconnect[1];
3752 setup[setup_count].parity = parity[1];
3753 setup[setup_count].synchronous = sync[1];
3754 setup[setup_count].delay = delay[1];
3755 setup[setup_count].ext_trans = exttrans[1];
3756#if defined(AHA152X_DEBUG)
3757 setup[setup_count].debug = debug[1];
3758#endif
3759 }
3760 if (checksetup(&setup[setup_count]))
3761 setup_count++;
3762 else
3763 printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
3764 setup[setup_count].io_port,
3765 setup[setup_count].irq,
3766 setup[setup_count].scsiid,
3767 setup[setup_count].reconnect,
3768 setup[setup_count].parity,
3769 setup[setup_count].synchronous,
3770 setup[setup_count].delay,
3771 setup[setup_count].ext_trans);
3772 }
3773#endif
3774
3775#ifdef __ISAPNP__
3776 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
3777 while ( setup_count<ARRAY_SIZE(setup) &&
3778 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
3779 if (pnp_device_attach(dev) < 0)
3780 continue;
3781
3782 if (pnp_activate_dev(dev) < 0) {
3783 pnp_device_detach(dev);
3784 continue;
3785 }
3786
3787 if (!pnp_port_valid(dev, 0)) {
3788 pnp_device_detach(dev);
3789 continue;
3790 }
3791
3792 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
3793 pnp_device_detach(dev);
3794 continue;
3795 }
3796
3797 setup[setup_count].io_port = pnp_port_start(dev, 0);
3798 setup[setup_count].irq = pnp_irq(dev, 0);
3799 setup[setup_count].scsiid = 7;
3800 setup[setup_count].reconnect = 1;
3801 setup[setup_count].parity = 1;
3802 setup[setup_count].synchronous = 1;
3803 setup[setup_count].delay = DELAY_DEFAULT;
3804 setup[setup_count].ext_trans = 0;
3805#if defined(AHA152X_DEBUG)
3806 setup[setup_count].debug = DEBUG_DEFAULT;
3807#endif
3808#if defined(__ISAPNP__)
3809 pnpdev[setup_count] = dev;
3810#endif
3811 printk (KERN_INFO
3812 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
3813 setup[setup_count].io_port, setup[setup_count].irq);
3814 setup_count++;
3815 }
3816 }
3817#endif
3818
3819#if defined(AUTOCONF)
3820 if (setup_count<ARRAY_SIZE(setup)) {
3821#if !defined(SKIP_BIOSTEST)
3822 ok = 0;
3823 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
3824 void __iomem *p = ioremap(addresses[i], 0x4000);
3825 if (!p)
3826 continue;
3827 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
3828 ok = check_signature(p + signatures[j].sig_offset,
3829 signatures[j].signature, signatures[j].sig_length);
3830 iounmap(p);
3831 }
3832 if (!ok && setup_count == 0)
3833 return -ENODEV;
3834
3835 printk(KERN_INFO "aha152x: BIOS test: passed, ");
3836#else
3837 printk(KERN_INFO "aha152x: ");
3838#endif
3839
3840 ok = 0;
3841 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
3842 if ((setup_count == 1) && (setup[0].io_port == ports[i]))
3843 continue;
3844
3845 if (!request_region(ports[i], IO_RANGE, "aha152x")) {
3846 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
3847 continue;
3848 }
3849
3850 if (aha152x_porttest(ports[i])) {
3851 setup[setup_count].tc1550 = 0;
3852
3853 conf.cf_port =
3854 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
3855 } else if (tc1550_porttest(ports[i])) {
3856 setup[setup_count].tc1550 = 1;
3857
3858 conf.cf_port =
3859 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
3860 } else {
3861 release_region(ports[i], IO_RANGE);
3862 continue;
3863 }
3864
3865 release_region(ports[i], IO_RANGE);
3866
3867 ok++;
3868 setup[setup_count].io_port = ports[i];
3869 setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
3870 setup[setup_count].scsiid = conf.cf_id;
3871 setup[setup_count].reconnect = conf.cf_tardisc;
3872 setup[setup_count].parity = !conf.cf_parity;
3873 setup[setup_count].synchronous = conf.cf_syncneg;
3874 setup[setup_count].delay = DELAY_DEFAULT;
3875 setup[setup_count].ext_trans = 0;
3876#if defined(AHA152X_DEBUG)
3877 setup[setup_count].debug = DEBUG_DEFAULT;
3878#endif
3879 setup_count++;
3880
3881 }
3882
3883 if (ok)
3884 printk("auto configuration: ok, ");
3885 }
3886#endif
3887
3888 printk("%d controller(s) configured\n", setup_count);
3889
3890 for (i=0; i<setup_count; i++) {
3891 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
3892 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
3893
3894 if( !shpnt ) {
3895 release_region(setup[i].io_port, IO_RANGE);
3896#if defined(__ISAPNP__)
3897 } else if( pnpdev[i] ) {
3898 HOSTDATA(shpnt)->pnpdev=pnpdev[i];
3899 pnpdev[i]=NULL;
3900#endif
3901 }
3902 } else {
3903 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
3904 }
3905
3906#if defined(__ISAPNP__)
3907 if( pnpdev[i] )
3908 pnp_device_detach(pnpdev[i]);
3909#endif
3910 }
3911
3912 return 0;
3913}
3914
3915static void __exit aha152x_exit(void)
3916{
3917 struct aha152x_hostdata *hd, *tmp;
3918
3919 list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
3920 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
3921
3922 aha152x_release(shost);
3923 }
3924}
3925
3926module_init(aha152x_init);
3927module_exit(aha152x_exit);
3928
3929#if !defined(MODULE)
3930static int __init aha152x_setup(char *str)
3931{
3932#if defined(AHA152X_DEBUG)
3933 int ints[11];
3934#else
3935 int ints[10];
3936#endif
3937 get_options(str, ARRAY_SIZE(ints), ints);
3938
3939 if(setup_count>=ARRAY_SIZE(setup)) {
3940 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
3941 return 1;
3942 }
3943
3944 setup[setup_count].conf = str;
3945 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
3946 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
3947 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
3948 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
3949 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
3950 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
3951 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
3952 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
3953#if defined(AHA152X_DEBUG)
3954 setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
3955 if (ints[0] > 9) {
3956 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3957 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
3958#else
3959 if (ints[0] > 8) {
3960 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3961 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
3962#endif
3963 } else {
3964 setup_count++;
3965 return 0;
3966 }
3967
3968 return 1;
3969}
3970__setup("aha152x=", aha152x_setup);
3971#endif
3972
3973#endif
3974