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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 <linux/completion.h>
243#include <linux/errno.h>
244#include <linux/string.h>
245#include <linux/wait.h>
246#include <linux/ioport.h>
247#include <linux/delay.h>
248#include <linux/proc_fs.h>
249#include <linux/interrupt.h>
250#include <linux/init.h>
251#include <linux/kernel.h>
252#include <linux/isapnp.h>
253#include <linux/spinlock.h>
254#include <linux/workqueue.h>
255#include <linux/list.h>
256#include <linux/slab.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[] = {
424 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 },
425 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 },
426 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 },
427 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 },
428 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 },
429 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 },
430 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 },
431 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 },
432 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 },
433 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 },
434 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 },
435 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 },
436 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 },
437 { ISAPNP_DEVICE_SINGLE_END, }
438};
439MODULE_DEVICE_TABLE(isapnp, id_table);
440#endif
441
442#endif
443
444static struct scsi_host_template aha152x_driver_template;
445
446
447
448
449
450enum aha152x_state {
451 idle=0,
452 unknown,
453 seldo,
454 seldi,
455 selto,
456 busfree,
457 msgo,
458 cmd,
459 msgi,
460 status,
461 datai,
462 datao,
463 parerr,
464 rsti,
465 maxstate
466};
467
468
469
470
471
472struct aha152x_hostdata {
473 Scsi_Cmnd *issue_SC;
474
475
476 Scsi_Cmnd *current_SC;
477
478
479 Scsi_Cmnd *disconnected_SC;
480
481
482 Scsi_Cmnd *done_SC;
483
484
485 spinlock_t lock;
486
487
488#if defined(AHA152X_DEBUG)
489 const char *locker;
490
491 int lockerl;
492
493 int debug;
494#endif
495
496#if defined(AHA152X_STAT)
497 int total_commands;
498 int disconnections;
499 int busfree_without_any_action;
500 int busfree_without_old_command;
501 int busfree_without_new_command;
502 int busfree_without_done_command;
503 int busfree_with_check_condition;
504 int count[maxstate];
505 int count_trans[maxstate];
506 unsigned long time[maxstate];
507#endif
508
509 int commands;
510
511 int reconnect;
512 int parity;
513 int synchronous;
514 int delay;
515 int ext_trans;
516
517 int swint;
518 int service;
519 int in_intr;
520
521
522
523
524 enum aha152x_state state, prevstate, laststate;
525
526 int target;
527
528
529 unsigned char syncrate[8];
530
531
532 unsigned char syncneg[8];
533
534
535
536
537
538 int cmd_i;
539
540
541 int msgi_len;
542
543 unsigned char msgi[256];
544
545
546 int msgo_i, msgo_len;
547
548 unsigned char msgo[256];
549
550
551 int data_len;
552
553
554 unsigned long io_port0;
555 unsigned long io_port1;
556
557#ifdef __ISAPNP__
558 struct pnp_dev *pnpdev;
559#endif
560 struct list_head host_list;
561};
562
563
564
565
566
567
568struct aha152x_scdata {
569 Scsi_Cmnd *next;
570 struct completion *done;
571 struct scsi_eh_save ses;
572};
573
574
575
576#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
577
578#define HOSTNO ((shpnt)->host_no)
579
580#define CURRENT_SC (HOSTDATA(shpnt)->current_SC)
581#define DONE_SC (HOSTDATA(shpnt)->done_SC)
582#define ISSUE_SC (HOSTDATA(shpnt)->issue_SC)
583#define DISCONNECTED_SC (HOSTDATA(shpnt)->disconnected_SC)
584#define QLOCK (HOSTDATA(shpnt)->lock)
585#define QLOCKER (HOSTDATA(shpnt)->locker)
586#define QLOCKERL (HOSTDATA(shpnt)->lockerl)
587
588#define STATE (HOSTDATA(shpnt)->state)
589#define PREVSTATE (HOSTDATA(shpnt)->prevstate)
590#define LASTSTATE (HOSTDATA(shpnt)->laststate)
591
592#define RECONN_TARGET (HOSTDATA(shpnt)->target)
593
594#define CMD_I (HOSTDATA(shpnt)->cmd_i)
595
596#define MSGO(i) (HOSTDATA(shpnt)->msgo[i])
597#define MSGO_I (HOSTDATA(shpnt)->msgo_i)
598#define MSGOLEN (HOSTDATA(shpnt)->msgo_len)
599#define ADDMSGO(x) (MSGOLEN<256 ? (void)(MSGO(MSGOLEN++)=x) : aha152x_error(shpnt,"MSGO overflow"))
600
601#define MSGI(i) (HOSTDATA(shpnt)->msgi[i])
602#define MSGILEN (HOSTDATA(shpnt)->msgi_len)
603#define ADDMSGI(x) (MSGILEN<256 ? (void)(MSGI(MSGILEN++)=x) : aha152x_error(shpnt,"MSGI overflow"))
604
605#define DATA_LEN (HOSTDATA(shpnt)->data_len)
606
607#define SYNCRATE (HOSTDATA(shpnt)->syncrate[CURRENT_SC->device->id])
608#define SYNCNEG (HOSTDATA(shpnt)->syncneg[CURRENT_SC->device->id])
609
610#define DELAY (HOSTDATA(shpnt)->delay)
611#define EXT_TRANS (HOSTDATA(shpnt)->ext_trans)
612#define TC1550 (HOSTDATA(shpnt)->tc1550)
613#define RECONNECT (HOSTDATA(shpnt)->reconnect)
614#define PARITY (HOSTDATA(shpnt)->parity)
615#define SYNCHRONOUS (HOSTDATA(shpnt)->synchronous)
616
617#define HOSTIOPORT0 (HOSTDATA(shpnt)->io_port0)
618#define HOSTIOPORT1 (HOSTDATA(shpnt)->io_port1)
619
620#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
621#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
622#define SCSEM(SCpnt) SCDATA(SCpnt)->done
623
624#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
625
626
627static void seldi_run(struct Scsi_Host *shpnt);
628static void seldo_run(struct Scsi_Host *shpnt);
629static void selto_run(struct Scsi_Host *shpnt);
630static void busfree_run(struct Scsi_Host *shpnt);
631
632static void msgo_init(struct Scsi_Host *shpnt);
633static void msgo_run(struct Scsi_Host *shpnt);
634static void msgo_end(struct Scsi_Host *shpnt);
635
636static void cmd_init(struct Scsi_Host *shpnt);
637static void cmd_run(struct Scsi_Host *shpnt);
638static void cmd_end(struct Scsi_Host *shpnt);
639
640static void datai_init(struct Scsi_Host *shpnt);
641static void datai_run(struct Scsi_Host *shpnt);
642static void datai_end(struct Scsi_Host *shpnt);
643
644static void datao_init(struct Scsi_Host *shpnt);
645static void datao_run(struct Scsi_Host *shpnt);
646static void datao_end(struct Scsi_Host *shpnt);
647
648static void status_run(struct Scsi_Host *shpnt);
649
650static void msgi_run(struct Scsi_Host *shpnt);
651static void msgi_end(struct Scsi_Host *shpnt);
652
653static void parerr_run(struct Scsi_Host *shpnt);
654static void rsti_run(struct Scsi_Host *shpnt);
655
656static void is_complete(struct Scsi_Host *shpnt);
657
658
659
660
661
662static struct {
663 char *name;
664 void (*init)(struct Scsi_Host *);
665 void (*run)(struct Scsi_Host *);
666 void (*end)(struct Scsi_Host *);
667 int spio;
668} states[] = {
669 { "idle", NULL, NULL, NULL, 0},
670 { "unknown", NULL, NULL, NULL, 0},
671 { "seldo", NULL, seldo_run, NULL, 0},
672 { "seldi", NULL, seldi_run, NULL, 0},
673 { "selto", NULL, selto_run, NULL, 0},
674 { "busfree", NULL, busfree_run, NULL, 0},
675 { "msgo", msgo_init, msgo_run, msgo_end, 1},
676 { "cmd", cmd_init, cmd_run, cmd_end, 1},
677 { "msgi", NULL, msgi_run, msgi_end, 1},
678 { "status", NULL, status_run, NULL, 1},
679 { "datai", datai_init, datai_run, datai_end, 0},
680 { "datao", datao_init, datao_run, datao_end, 0},
681 { "parerr", NULL, parerr_run, NULL, 0},
682 { "rsti", NULL, rsti_run, NULL, 0},
683};
684
685
686static irqreturn_t intr(int irq, void *dev_id);
687static void reset_ports(struct Scsi_Host *shpnt);
688static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
689static void done(struct Scsi_Host *shpnt, int error);
690
691
692static void disp_ports(struct Scsi_Host *shpnt);
693static void show_command(Scsi_Cmnd * ptr);
694static void show_queues(struct Scsi_Host *shpnt);
695static void disp_enintr(struct Scsi_Host *shpnt);
696
697
698
699
700
701
702static inline void append_SC(Scsi_Cmnd **SC, Scsi_Cmnd *new_SC)
703{
704 Scsi_Cmnd *end;
705
706 SCNEXT(new_SC) = NULL;
707 if (!*SC)
708 *SC = new_SC;
709 else {
710 for (end = *SC; SCNEXT(end); end = SCNEXT(end))
711 ;
712 SCNEXT(end) = new_SC;
713 }
714}
715
716static inline Scsi_Cmnd *remove_first_SC(Scsi_Cmnd ** SC)
717{
718 Scsi_Cmnd *ptr;
719
720 ptr = *SC;
721 if (ptr) {
722 *SC = SCNEXT(*SC);
723 SCNEXT(ptr)=NULL;
724 }
725 return ptr;
726}
727
728static inline Scsi_Cmnd *remove_lun_SC(Scsi_Cmnd ** SC, int target, int lun)
729{
730 Scsi_Cmnd *ptr, *prev;
731
732 for (ptr = *SC, prev = NULL;
733 ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
734 prev = ptr, ptr = SCNEXT(ptr))
735 ;
736
737 if (ptr) {
738 if (prev)
739 SCNEXT(prev) = SCNEXT(ptr);
740 else
741 *SC = SCNEXT(ptr);
742
743 SCNEXT(ptr)=NULL;
744 }
745
746 return ptr;
747}
748
749static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
750{
751 Scsi_Cmnd *ptr, *prev;
752
753 for (ptr = *SC, prev = NULL;
754 ptr && SCp!=ptr;
755 prev = ptr, ptr = SCNEXT(ptr))
756 ;
757
758 if (ptr) {
759 if (prev)
760 SCNEXT(prev) = SCNEXT(ptr);
761 else
762 *SC = SCNEXT(ptr);
763
764 SCNEXT(ptr)=NULL;
765 }
766
767 return ptr;
768}
769
770static irqreturn_t swintr(int irqno, void *dev_id)
771{
772 struct Scsi_Host *shpnt = dev_id;
773
774 HOSTDATA(shpnt)->swint++;
775
776 SETPORT(DMACNTRL0, INTEN);
777 return IRQ_HANDLED;
778}
779
780struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
781{
782 struct Scsi_Host *shpnt;
783
784 shpnt = scsi_host_alloc(&aha152x_driver_template, sizeof(struct aha152x_hostdata));
785 if (!shpnt) {
786 printk(KERN_ERR "aha152x: scsi_host_alloc failed\n");
787 return NULL;
788 }
789
790 memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
791 INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
792
793
794 list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
795
796 shpnt->io_port = setup->io_port;
797 shpnt->n_io_port = IO_RANGE;
798 shpnt->irq = setup->irq;
799
800 if (!setup->tc1550) {
801 HOSTIOPORT0 = setup->io_port;
802 HOSTIOPORT1 = setup->io_port;
803 } else {
804 HOSTIOPORT0 = setup->io_port+0x10;
805 HOSTIOPORT1 = setup->io_port-0x10;
806 }
807
808 spin_lock_init(&QLOCK);
809 RECONNECT = setup->reconnect;
810 SYNCHRONOUS = setup->synchronous;
811 PARITY = setup->parity;
812 DELAY = setup->delay;
813 EXT_TRANS = setup->ext_trans;
814
815#if defined(AHA152X_DEBUG)
816 HOSTDATA(shpnt)->debug = setup->debug;
817#endif
818
819 SETPORT(SCSIID, setup->scsiid << 4);
820 shpnt->this_id = setup->scsiid;
821
822 if (setup->reconnect)
823 shpnt->can_queue = AHA152X_MAXQUEUE;
824
825
826 printk("aha152x: resetting bus...\n");
827 SETPORT(SCSISEQ, SCSIRSTO);
828 mdelay(256);
829 SETPORT(SCSISEQ, 0);
830 mdelay(DELAY);
831
832 reset_ports(shpnt);
833
834 printk(KERN_INFO
835 "aha152x%d%s: "
836 "vital data: rev=%x, "
837 "io=0x%03lx (0x%03lx/0x%03lx), "
838 "irq=%d, "
839 "scsiid=%d, "
840 "reconnect=%s, "
841 "parity=%s, "
842 "synchronous=%s, "
843 "delay=%d, "
844 "extended translation=%s\n",
845 shpnt->host_no, setup->tc1550 ? " (tc1550 mode)" : "",
846 GETPORT(REV) & 0x7,
847 shpnt->io_port, HOSTIOPORT0, HOSTIOPORT1,
848 shpnt->irq,
849 shpnt->this_id,
850 RECONNECT ? "enabled" : "disabled",
851 PARITY ? "enabled" : "disabled",
852 SYNCHRONOUS ? "enabled" : "disabled",
853 DELAY,
854 EXT_TRANS ? "enabled" : "disabled");
855
856
857 SETPORT(SIMODE0, 0);
858 SETPORT(SIMODE1, 0);
859
860 if( request_irq(shpnt->irq, swintr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
861 printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
862 goto out_host_put;
863 }
864
865 HOSTDATA(shpnt)->swint = 0;
866
867 printk(KERN_INFO "aha152x%d: trying software interrupt, ", shpnt->host_no);
868
869 mb();
870 SETPORT(DMACNTRL0, SWINT|INTEN);
871 mdelay(1000);
872 free_irq(shpnt->irq, shpnt);
873
874 if (!HOSTDATA(shpnt)->swint) {
875 if (TESTHI(DMASTAT, INTSTAT)) {
876 printk("lost.\n");
877 } else {
878 printk("failed.\n");
879 }
880
881 SETPORT(DMACNTRL0, INTEN);
882
883 printk(KERN_ERR "aha152x%d: irq %d possibly wrong. "
884 "Please verify.\n", shpnt->host_no, shpnt->irq);
885 goto out_host_put;
886 }
887 printk("ok.\n");
888
889
890
891 SETPORT(SSTAT0, 0x7f);
892 SETPORT(SSTAT1, 0xef);
893
894 if ( request_irq(shpnt->irq, intr, IRQF_DISABLED|IRQF_SHARED, "aha152x", shpnt) ) {
895 printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
896 goto out_host_put;
897 }
898
899 if( scsi_add_host(shpnt, NULL) ) {
900 free_irq(shpnt->irq, shpnt);
901 printk(KERN_ERR "aha152x%d: failed to add host.\n", shpnt->host_no);
902 goto out_host_put;
903 }
904
905 scsi_scan_host(shpnt);
906
907 return shpnt;
908
909out_host_put:
910 list_del(&HOSTDATA(shpnt)->host_list);
911 scsi_host_put(shpnt);
912
913 return NULL;
914}
915
916void aha152x_release(struct Scsi_Host *shpnt)
917{
918 if (!shpnt)
919 return;
920
921 scsi_remove_host(shpnt);
922 if (shpnt->irq)
923 free_irq(shpnt->irq, shpnt);
924
925#if !defined(PCMCIA)
926 if (shpnt->io_port)
927 release_region(shpnt->io_port, IO_RANGE);
928#endif
929
930#ifdef __ISAPNP__
931 if (HOSTDATA(shpnt)->pnpdev)
932 pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
933#endif
934
935 list_del(&HOSTDATA(shpnt)->host_list);
936 scsi_host_put(shpnt);
937}
938
939
940
941
942
943
944
945static int setup_expected_interrupts(struct Scsi_Host *shpnt)
946{
947 if(CURRENT_SC) {
948 CURRENT_SC->SCp.phase |= 1 << 16;
949
950 if(CURRENT_SC->SCp.phase & selecting) {
951 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
952 SETPORT(SSTAT1, SELTO);
953 SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
954 SETPORT(SIMODE1, ENSELTIMO);
955 } else {
956 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
957 SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
958 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
959 }
960 } else if(STATE==seldi) {
961 DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
962 SETPORT(SIMODE0, 0);
963 SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
964 } else {
965 DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
966 CMDINFO(CURRENT_SC),
967 DISCONNECTED_SC ? "(reselection)" : "",
968 ISSUE_SC ? "(busfree)" : "");
969 SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
970 SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
971 }
972
973 if(!HOSTDATA(shpnt)->in_intr)
974 SETBITS(DMACNTRL0, INTEN);
975
976 return TESTHI(DMASTAT, INTSTAT);
977}
978
979
980
981
982
983static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
984 int phase, void (*done)(Scsi_Cmnd *))
985{
986 struct Scsi_Host *shpnt = SCpnt->device->host;
987 unsigned long flags;
988
989#if defined(AHA152X_DEBUG)
990 if (HOSTDATA(shpnt)->debug & debug_queue) {
991 printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
992 CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
993 scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
994 __scsi_print_command(SCpnt->cmnd);
995 }
996#endif
997
998 SCpnt->scsi_done = done;
999 SCpnt->SCp.phase = not_issued | phase;
1000 SCpnt->SCp.Status = 0x1;
1001 SCpnt->SCp.Message = 0;
1002 SCpnt->SCp.have_data_in = 0;
1003 SCpnt->SCp.sent_command = 0;
1004
1005 if(SCpnt->SCp.phase & (resetting|check_condition)) {
1006 if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
1007 printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
1008 return FAILED;
1009 }
1010 } else {
1011 SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
1012 if(!SCpnt->host_scribble) {
1013 printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
1014 return FAILED;
1015 }
1016 }
1017
1018 SCNEXT(SCpnt) = NULL;
1019 SCSEM(SCpnt) = complete;
1020
1021
1022
1023
1024
1025
1026
1027
1028 if ((phase & resetting) || !scsi_sglist(SCpnt)) {
1029 SCpnt->SCp.ptr = NULL;
1030 SCpnt->SCp.this_residual = 0;
1031 scsi_set_resid(SCpnt, 0);
1032 SCpnt->SCp.buffer = NULL;
1033 SCpnt->SCp.buffers_residual = 0;
1034 } else {
1035 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
1036 SCpnt->SCp.buffer = scsi_sglist(SCpnt);
1037 SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
1038 SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
1039 SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
1040 }
1041
1042 DO_LOCK(flags);
1043
1044#if defined(AHA152X_STAT)
1045 HOSTDATA(shpnt)->total_commands++;
1046#endif
1047
1048
1049 HOSTDATA(shpnt)->commands++;
1050 if (HOSTDATA(shpnt)->commands==1)
1051 SETPORT(PORTA, 1);
1052
1053 append_SC(&ISSUE_SC, SCpnt);
1054
1055 if(!HOSTDATA(shpnt)->in_intr)
1056 setup_expected_interrupts(shpnt);
1057
1058 DO_UNLOCK(flags);
1059
1060 return 0;
1061}
1062
1063
1064
1065
1066
1067static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
1068{
1069#if 0
1070 if(*SCpnt->cmnd == REQUEST_SENSE) {
1071 SCpnt->result = 0;
1072 done(SCpnt);
1073
1074 return 0;
1075 }
1076#endif
1077
1078 return aha152x_internal_queue(SCpnt, NULL, 0, done);
1079}
1080
1081static DEF_SCSI_QCMD(aha152x_queue)
1082
1083
1084
1085
1086
1087
1088static void reset_done(Scsi_Cmnd *SCpnt)
1089{
1090#if 0
1091 struct Scsi_Host *shpnt = SCpnt->host;
1092 DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
1093#endif
1094 if(SCSEM(SCpnt)) {
1095 complete(SCSEM(SCpnt));
1096 } else {
1097 printk(KERN_ERR "aha152x: reset_done w/o completion\n");
1098 }
1099}
1100
1101
1102
1103
1104
1105static int aha152x_abort(Scsi_Cmnd *SCpnt)
1106{
1107 struct Scsi_Host *shpnt = SCpnt->device->host;
1108 Scsi_Cmnd *ptr;
1109 unsigned long flags;
1110
1111#if defined(AHA152X_DEBUG)
1112 if(HOSTDATA(shpnt)->debug & debug_eh) {
1113 printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
1114 show_queues(shpnt);
1115 }
1116#endif
1117
1118 DO_LOCK(flags);
1119
1120 ptr=remove_SC(&ISSUE_SC, SCpnt);
1121
1122 if(ptr) {
1123 DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
1124
1125 HOSTDATA(shpnt)->commands--;
1126 if (!HOSTDATA(shpnt)->commands)
1127 SETPORT(PORTA, 0);
1128 DO_UNLOCK(flags);
1129
1130 kfree(SCpnt->host_scribble);
1131 SCpnt->host_scribble=NULL;
1132
1133 return SUCCESS;
1134 }
1135
1136 DO_UNLOCK(flags);
1137
1138
1139
1140
1141
1142
1143
1144
1145 printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
1146
1147 return FAILED;
1148}
1149
1150
1151
1152
1153
1154static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
1155{
1156 struct Scsi_Host *shpnt = SCpnt->device->host;
1157 DECLARE_COMPLETION(done);
1158 int ret, issued, disconnected;
1159 unsigned char old_cmd_len = SCpnt->cmd_len;
1160 unsigned long flags;
1161 unsigned long timeleft;
1162
1163#if defined(AHA152X_DEBUG)
1164 if(HOSTDATA(shpnt)->debug & debug_eh) {
1165 printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
1166 show_queues(shpnt);
1167 }
1168#endif
1169
1170 if(CURRENT_SC==SCpnt) {
1171 printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
1172 return FAILED;
1173 }
1174
1175 DO_LOCK(flags);
1176 issued = remove_SC(&ISSUE_SC, SCpnt) == NULL;
1177 disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
1178 DO_UNLOCK(flags);
1179
1180 SCpnt->cmd_len = 0;
1181
1182 aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
1183
1184 timeleft = wait_for_completion_timeout(&done, 100*HZ);
1185 if (!timeleft) {
1186
1187 DO_LOCK(flags);
1188 remove_SC(&ISSUE_SC, SCpnt);
1189 DO_UNLOCK(flags);
1190 }
1191
1192 SCpnt->cmd_len = old_cmd_len;
1193
1194 DO_LOCK(flags);
1195
1196 if(SCpnt->SCp.phase & resetted) {
1197 HOSTDATA(shpnt)->commands--;
1198 if (!HOSTDATA(shpnt)->commands)
1199 SETPORT(PORTA, 0);
1200 kfree(SCpnt->host_scribble);
1201 SCpnt->host_scribble=NULL;
1202
1203 ret = SUCCESS;
1204 } else {
1205
1206 if(!issued) {
1207 append_SC(&ISSUE_SC, SCpnt);
1208 } else if(disconnected) {
1209 append_SC(&DISCONNECTED_SC, SCpnt);
1210 }
1211
1212 ret = FAILED;
1213 }
1214
1215 DO_UNLOCK(flags);
1216 return ret;
1217}
1218
1219static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
1220{
1221 Scsi_Cmnd *ptr;
1222
1223 ptr=*SCs;
1224 while(ptr) {
1225 Scsi_Cmnd *next;
1226
1227 if(SCDATA(ptr)) {
1228 next = SCNEXT(ptr);
1229 } else {
1230 printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
1231 next = NULL;
1232 }
1233
1234 if (!ptr->device->soft_reset) {
1235 DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
1236 remove_SC(SCs, ptr);
1237 HOSTDATA(shpnt)->commands--;
1238 kfree(ptr->host_scribble);
1239 ptr->host_scribble=NULL;
1240 }
1241
1242 ptr = next;
1243 }
1244}
1245
1246
1247
1248
1249
1250static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
1251{
1252 unsigned long flags;
1253
1254 DO_LOCK(flags);
1255
1256#if defined(AHA152X_DEBUG)
1257 if(HOSTDATA(shpnt)->debug & debug_eh) {
1258 printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
1259 show_queues(shpnt);
1260 }
1261#endif
1262
1263 free_hard_reset_SCs(shpnt, &ISSUE_SC);
1264 free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
1265
1266 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
1267
1268 SETPORT(SCSISEQ, SCSIRSTO);
1269 mdelay(256);
1270 SETPORT(SCSISEQ, 0);
1271 mdelay(DELAY);
1272
1273 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
1274
1275 setup_expected_interrupts(shpnt);
1276 if(HOSTDATA(shpnt)->commands==0)
1277 SETPORT(PORTA, 0);
1278
1279 DO_UNLOCK(flags);
1280
1281 return SUCCESS;
1282}
1283
1284
1285
1286
1287
1288static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
1289{
1290 return aha152x_bus_reset_host(SCpnt->device->host);
1291}
1292
1293
1294
1295
1296
1297static void reset_ports(struct Scsi_Host *shpnt)
1298{
1299 unsigned long flags;
1300
1301
1302 SETPORT(DMACNTRL0, RSTFIFO);
1303
1304 SETPORT(SCSISEQ, 0);
1305
1306 SETPORT(SXFRCTL1, 0);
1307 SETPORT(SCSISIG, 0);
1308 SETRATE(0);
1309
1310
1311 SETPORT(SSTAT0, 0x7f);
1312 SETPORT(SSTAT1, 0xef);
1313
1314 SETPORT(SSTAT4, SYNCERR | FWERR | FRERR);
1315
1316 SETPORT(DMACNTRL0, 0);
1317 SETPORT(DMACNTRL1, 0);
1318
1319 SETPORT(BRSTCNTRL, 0xf1);
1320
1321
1322 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1323 SETPORT(SXFRCTL0, CH1);
1324
1325 DO_LOCK(flags);
1326 setup_expected_interrupts(shpnt);
1327 DO_UNLOCK(flags);
1328}
1329
1330
1331
1332
1333
1334int aha152x_host_reset_host(struct Scsi_Host *shpnt)
1335{
1336 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
1337
1338 aha152x_bus_reset_host(shpnt);
1339
1340 DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
1341 reset_ports(shpnt);
1342
1343 return SUCCESS;
1344}
1345
1346
1347
1348
1349
1350static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
1351{
1352 return aha152x_host_reset_host(SCpnt->device->host);
1353}
1354
1355
1356
1357
1358
1359static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev,
1360 sector_t capacity, int *info_array)
1361{
1362 struct Scsi_Host *shpnt = sdev->host;
1363
1364
1365 info_array[0] = 64;
1366 info_array[1] = 32;
1367 info_array[2] = (unsigned long)capacity / (64 * 32);
1368
1369
1370 if (info_array[2] >= 1024) {
1371 int info[3];
1372
1373
1374 if (scsicam_bios_param(bdev, capacity, info) < 0 ||
1375 !((info[0] == 64 && info[1] == 32) || (info[0] == 255 && info[1] == 63))) {
1376 if (EXT_TRANS) {
1377 printk(KERN_NOTICE
1378 "aha152x: unable to verify geometry for disk with >1GB.\n"
1379 " using extended translation.\n");
1380 info_array[0] = 255;
1381 info_array[1] = 63;
1382 info_array[2] = (unsigned long)capacity / (255 * 63);
1383 } else {
1384 printk(KERN_NOTICE
1385 "aha152x: unable to verify geometry for disk with >1GB.\n"
1386 " Using default translation. Please verify yourself.\n"
1387 " Perhaps you need to enable extended translation in the driver.\n"
1388 " See Documentation/scsi/aha152x.txt for details.\n");
1389 }
1390 } else {
1391 info_array[0] = info[0];
1392 info_array[1] = info[1];
1393 info_array[2] = info[2];
1394
1395 if (info[0] == 255 && !EXT_TRANS) {
1396 printk(KERN_NOTICE
1397 "aha152x: current partition table is using extended translation.\n"
1398 " using it also, although it's not explicitly enabled.\n");
1399 }
1400 }
1401 }
1402
1403 return 0;
1404}
1405
1406
1407
1408
1409
1410static void done(struct Scsi_Host *shpnt, int error)
1411{
1412 if (CURRENT_SC) {
1413 if(DONE_SC)
1414 printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
1415
1416 DONE_SC = CURRENT_SC;
1417 CURRENT_SC = NULL;
1418 DONE_SC->result = error;
1419 } else
1420 printk(KERN_ERR "aha152x: done() called outside of command\n");
1421}
1422
1423static struct work_struct aha152x_tq;
1424
1425
1426
1427
1428
1429static void run(struct work_struct *work)
1430{
1431 struct aha152x_hostdata *hd;
1432
1433 list_for_each_entry(hd, &aha152x_host_list, host_list) {
1434 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
1435
1436 is_complete(shost);
1437 }
1438}
1439
1440
1441
1442
1443
1444static irqreturn_t intr(int irqno, void *dev_id)
1445{
1446 struct Scsi_Host *shpnt = dev_id;
1447 unsigned long flags;
1448 unsigned char rev, dmacntrl0;
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463 rev = GETPORT(REV);
1464 dmacntrl0 = GETPORT(DMACNTRL0);
1465 if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
1466 return IRQ_NONE;
1467
1468 if( TESTLO(DMASTAT, INTSTAT) )
1469 return IRQ_NONE;
1470
1471
1472
1473 CLRBITS(DMACNTRL0, INTEN);
1474
1475 DO_LOCK(flags);
1476 if( HOSTDATA(shpnt)->service==0 ) {
1477 HOSTDATA(shpnt)->service=1;
1478
1479
1480 INIT_WORK(&aha152x_tq, run);
1481 schedule_work(&aha152x_tq);
1482 }
1483 DO_UNLOCK(flags);
1484
1485 return IRQ_HANDLED;
1486}
1487
1488
1489
1490
1491
1492
1493static void busfree_run(struct Scsi_Host *shpnt)
1494{
1495 unsigned long flags;
1496#if defined(AHA152X_STAT)
1497 int action=0;
1498#endif
1499
1500 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
1501 SETPORT(SXFRCTL0, CH1);
1502
1503 SETPORT(SSTAT1, CLRBUSFREE);
1504
1505 if(CURRENT_SC) {
1506#if defined(AHA152X_STAT)
1507 action++;
1508#endif
1509 CURRENT_SC->SCp.phase &= ~syncneg;
1510
1511 if(CURRENT_SC->SCp.phase & completed) {
1512
1513 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
1514
1515 } else if(CURRENT_SC->SCp.phase & aborted) {
1516 DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
1517 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
1518
1519 } else if(CURRENT_SC->SCp.phase & resetted) {
1520 DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
1521 done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
1522
1523 } else if(CURRENT_SC->SCp.phase & disconnected) {
1524
1525 DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
1526 CMDINFO(CURRENT_SC),
1527 scsi_get_resid(CURRENT_SC),
1528 scsi_bufflen(CURRENT_SC));
1529#if defined(AHA152X_STAT)
1530 HOSTDATA(shpnt)->disconnections++;
1531#endif
1532 append_SC(&DISCONNECTED_SC, CURRENT_SC);
1533 CURRENT_SC->SCp.phase |= 1 << 16;
1534 CURRENT_SC = NULL;
1535
1536 } else {
1537 done(shpnt, DID_ERROR << 16);
1538 }
1539#if defined(AHA152X_STAT)
1540 } else {
1541 HOSTDATA(shpnt)->busfree_without_old_command++;
1542#endif
1543 }
1544
1545 DO_LOCK(flags);
1546
1547 if(DONE_SC) {
1548#if defined(AHA152X_STAT)
1549 action++;
1550#endif
1551
1552 if(DONE_SC->SCp.phase & check_condition) {
1553 struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
1554 struct aha152x_scdata *sc = SCDATA(cmd);
1555
1556#if 0
1557 if(HOSTDATA(shpnt)->debug & debug_eh) {
1558 printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
1559 scsi_print_sense("bh", DONE_SC);
1560 }
1561#endif
1562
1563 scsi_eh_restore_cmnd(cmd, &sc->ses);
1564
1565 cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
1566
1567 HOSTDATA(shpnt)->commands--;
1568 if (!HOSTDATA(shpnt)->commands)
1569 SETPORT(PORTA, 0);
1570 } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
1571#if defined(AHA152X_STAT)
1572 HOSTDATA(shpnt)->busfree_with_check_condition++;
1573#endif
1574#if 0
1575 DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
1576#endif
1577
1578 if(!(DONE_SC->SCp.phase & not_issued)) {
1579 struct aha152x_scdata *sc;
1580 Scsi_Cmnd *ptr = DONE_SC;
1581 DONE_SC=NULL;
1582#if 0
1583 DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
1584#endif
1585
1586 sc = SCDATA(ptr);
1587
1588 BUG_ON(!sc);
1589 scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
1590
1591 DO_UNLOCK(flags);
1592 aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
1593 DO_LOCK(flags);
1594#if 0
1595 } else {
1596 DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
1597#endif
1598 }
1599 }
1600
1601 if(DONE_SC && DONE_SC->scsi_done) {
1602#if defined(AHA152X_DEBUG)
1603 int hostno=DONE_SC->device->host->host_no;
1604 int id=DONE_SC->device->id & 0xf;
1605 int lun=DONE_SC->device->lun & 0x7;
1606#endif
1607 Scsi_Cmnd *ptr = DONE_SC;
1608 DONE_SC=NULL;
1609
1610
1611 HOSTDATA(shpnt)->commands--;
1612 if (!HOSTDATA(shpnt)->commands)
1613 SETPORT(PORTA, 0);
1614
1615 if(ptr->scsi_done != reset_done) {
1616 kfree(ptr->host_scribble);
1617 ptr->host_scribble=NULL;
1618 }
1619
1620 DO_UNLOCK(flags);
1621 DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
1622 ptr->scsi_done(ptr);
1623 DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
1624 DO_LOCK(flags);
1625 }
1626
1627 DONE_SC=NULL;
1628#if defined(AHA152X_STAT)
1629 } else {
1630 HOSTDATA(shpnt)->busfree_without_done_command++;
1631#endif
1632 }
1633
1634 if(ISSUE_SC)
1635 CURRENT_SC = remove_first_SC(&ISSUE_SC);
1636
1637 DO_UNLOCK(flags);
1638
1639 if(CURRENT_SC) {
1640#if defined(AHA152X_STAT)
1641 action++;
1642#endif
1643 CURRENT_SC->SCp.phase |= selecting;
1644
1645 DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
1646
1647
1648 SETPORT(SSTAT1, SELTO);
1649
1650 SETPORT(SCSIID, (shpnt->this_id << OID_) | CURRENT_SC->device->id);
1651 SETPORT(SXFRCTL1, (PARITY ? ENSPCHK : 0 ) | ENSTIMER);
1652 SETPORT(SCSISEQ, ENSELO | ENAUTOATNO | (DISCONNECTED_SC ? ENRESELI : 0));
1653 } else {
1654#if defined(AHA152X_STAT)
1655 HOSTDATA(shpnt)->busfree_without_new_command++;
1656#endif
1657 SETPORT(SCSISEQ, DISCONNECTED_SC ? ENRESELI : 0);
1658 }
1659
1660#if defined(AHA152X_STAT)
1661 if(!action)
1662 HOSTDATA(shpnt)->busfree_without_any_action++;
1663#endif
1664}
1665
1666
1667
1668
1669
1670
1671static void seldo_run(struct Scsi_Host *shpnt)
1672{
1673 SETPORT(SCSISIG, 0);
1674 SETPORT(SSTAT1, CLRBUSFREE);
1675 SETPORT(SSTAT1, CLRPHASECHG);
1676
1677 CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
1678
1679 SETPORT(SCSISEQ, 0);
1680
1681 if (TESTLO(SSTAT0, SELDO)) {
1682 printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
1683 done(shpnt, DID_NO_CONNECT << 16);
1684 return;
1685 }
1686
1687 SETPORT(SSTAT0, CLRSELDO);
1688
1689 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
1690
1691 if (CURRENT_SC->SCp.phase & aborting) {
1692 ADDMSGO(ABORT);
1693 } else if (CURRENT_SC->SCp.phase & resetting) {
1694 ADDMSGO(BUS_DEVICE_RESET);
1695 } else if (SYNCNEG==0 && SYNCHRONOUS) {
1696 CURRENT_SC->SCp.phase |= syncneg;
1697 MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
1698 SYNCNEG=1;
1699 }
1700
1701 SETRATE(SYNCRATE);
1702}
1703
1704
1705
1706
1707
1708
1709static void selto_run(struct Scsi_Host *shpnt)
1710{
1711 SETPORT(SCSISEQ, 0);
1712 SETPORT(SSTAT1, CLRSELTIMO);
1713
1714 DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
1715
1716 if(!CURRENT_SC) {
1717 DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
1718 return;
1719 }
1720
1721 CURRENT_SC->SCp.phase &= ~selecting;
1722
1723 if (CURRENT_SC->SCp.phase & aborted) {
1724 DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
1725 done(shpnt, DID_ABORT << 16);
1726 } else if (TESTLO(SSTAT0, SELINGO)) {
1727 DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
1728 done(shpnt, DID_BUS_BUSY << 16);
1729 } else {
1730
1731 DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
1732 done(shpnt, DID_NO_CONNECT << 16);
1733 }
1734}
1735
1736
1737
1738
1739
1740
1741
1742
1743static void seldi_run(struct Scsi_Host *shpnt)
1744{
1745 int selid;
1746 int target;
1747 unsigned long flags;
1748
1749 SETPORT(SCSISIG, 0);
1750 SETPORT(SSTAT0, CLRSELDI);
1751 SETPORT(SSTAT1, CLRBUSFREE);
1752 SETPORT(SSTAT1, CLRPHASECHG);
1753
1754 if(CURRENT_SC) {
1755 if(!(CURRENT_SC->SCp.phase & not_issued))
1756 printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
1757
1758 DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
1759
1760 DO_LOCK(flags);
1761 append_SC(&ISSUE_SC, CURRENT_SC);
1762 DO_UNLOCK(flags);
1763
1764 CURRENT_SC = NULL;
1765 }
1766
1767 if(!DISCONNECTED_SC) {
1768 DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
1769 return;
1770 }
1771
1772 RECONN_TARGET=-1;
1773
1774 selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
1775
1776 if (selid==0) {
1777 printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
1778 return;
1779 }
1780
1781 for(target=7; !(selid & (1 << target)); target--)
1782 ;
1783
1784 if(selid & ~(1 << target)) {
1785 printk("aha152x%d: multiple targets reconnected (%02x)\n",
1786 HOSTNO, selid);
1787 }
1788
1789
1790 SETPORT(SCSIID, (shpnt->this_id << OID_) | target);
1791 SETPORT(SCSISEQ, 0);
1792
1793 SETRATE(HOSTDATA(shpnt)->syncrate[target]);
1794
1795 RECONN_TARGET=target;
1796 DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
1797}
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812static void msgi_run(struct Scsi_Host *shpnt)
1813{
1814 for(;;) {
1815 int sstat1 = GETPORT(SSTAT1);
1816
1817 if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
1818 return;
1819
1820 if(TESTLO(SSTAT0,SPIORDY)) {
1821 DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
1822 return;
1823 }
1824
1825 ADDMSGI(GETPORT(SCSIDAT));
1826
1827#if defined(AHA152X_DEBUG)
1828 if (HOSTDATA(shpnt)->debug & debug_msgi) {
1829 printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
1830 spi_print_msg(&MSGI(0));
1831 printk("\n");
1832 }
1833#endif
1834
1835 if(!CURRENT_SC) {
1836 if(LASTSTATE!=seldi) {
1837 printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
1838 }
1839
1840
1841
1842
1843 if(!(MSGI(0) & IDENTIFY_BASE)) {
1844 printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
1845 continue;
1846 }
1847
1848 CURRENT_SC = remove_lun_SC(&DISCONNECTED_SC, RECONN_TARGET, MSGI(0) & 0x3f);
1849
1850 if (!CURRENT_SC) {
1851 show_queues(shpnt);
1852 printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
1853 continue;
1854 }
1855
1856 DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
1857
1858 CURRENT_SC->SCp.Message = MSGI(0);
1859 CURRENT_SC->SCp.phase &= ~disconnected;
1860
1861 MSGILEN=0;
1862
1863
1864 continue;
1865 }
1866
1867 CURRENT_SC->SCp.Message = MSGI(0);
1868
1869 switch (MSGI(0)) {
1870 case DISCONNECT:
1871 if (!RECONNECT)
1872 printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
1873
1874 CURRENT_SC->SCp.phase |= disconnected;
1875 break;
1876
1877 case COMMAND_COMPLETE:
1878 if(CURRENT_SC->SCp.phase & completed)
1879 DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
1880
1881 CURRENT_SC->SCp.phase |= completed;
1882 break;
1883
1884 case MESSAGE_REJECT:
1885 if (SYNCNEG==1) {
1886 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
1887 SYNCNEG=2;
1888 } else
1889 printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
1890 break;
1891
1892 case SAVE_POINTERS:
1893 break;
1894
1895 case RESTORE_POINTERS:
1896 break;
1897
1898 case EXTENDED_MESSAGE:
1899 if(MSGILEN<2 || MSGILEN<MSGI(1)+2) {
1900
1901 continue;
1902 }
1903
1904 switch (MSGI(2)) {
1905 case EXTENDED_SDTR:
1906 {
1907 long ticks;
1908
1909 if (MSGI(1) != 3) {
1910 printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
1911 break;
1912 }
1913
1914 if (!HOSTDATA(shpnt)->synchronous)
1915 break;
1916
1917 printk(INFO_LEAD, CMDINFO(CURRENT_SC));
1918 spi_print_msg(&MSGI(0));
1919 printk("\n");
1920
1921 ticks = (MSGI(3) * 4 + 49) / 50;
1922
1923 if (syncneg) {
1924
1925 if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
1926 ADDMSGO(MESSAGE_REJECT);
1927 printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
1928 break;
1929 }
1930
1931 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1932 } else if (ticks <= 9 && MSGI(4) >= 1) {
1933 ADDMSGO(EXTENDED_MESSAGE);
1934 ADDMSGO(3);
1935 ADDMSGO(EXTENDED_SDTR);
1936 if (ticks < 4) {
1937 ticks = 4;
1938 ADDMSGO(50);
1939 } else
1940 ADDMSGO(MSGI(3));
1941
1942 if (MSGI(4) > 8)
1943 MSGI(4) = 8;
1944
1945 ADDMSGO(MSGI(4));
1946
1947 SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
1948 } else {
1949
1950 printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
1951 ADDMSGO(MESSAGE_REJECT);
1952 }
1953
1954 SYNCNEG=2;
1955 SETRATE(SYNCRATE);
1956 }
1957 break;
1958
1959 case BUS_DEVICE_RESET:
1960 {
1961 int i;
1962
1963 for(i=0; i<8; i++) {
1964 HOSTDATA(shpnt)->syncrate[i]=0;
1965 HOSTDATA(shpnt)->syncneg[i]=0;
1966 }
1967
1968 }
1969 break;
1970
1971 case EXTENDED_MODIFY_DATA_POINTER:
1972 case EXTENDED_EXTENDED_IDENTIFY:
1973 case EXTENDED_WDTR:
1974 default:
1975 ADDMSGO(MESSAGE_REJECT);
1976 break;
1977 }
1978 break;
1979 }
1980
1981 MSGILEN=0;
1982 }
1983}
1984
1985static void msgi_end(struct Scsi_Host *shpnt)
1986{
1987 if(MSGILEN>0)
1988 printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
1989
1990 if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
1991 DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
1992 SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
1993 }
1994}
1995
1996
1997
1998
1999
2000static void msgo_init(struct Scsi_Host *shpnt)
2001{
2002 if(MSGOLEN==0) {
2003 if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
2004 ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
2005 } else {
2006 printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
2007 ADDMSGO(MESSAGE_REJECT);
2008 }
2009 }
2010
2011#if defined(AHA152X_DEBUG)
2012 if(HOSTDATA(shpnt)->debug & debug_msgo) {
2013 int i;
2014
2015 printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
2016 for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
2017 ;
2018 printk(")\n");
2019 }
2020#endif
2021}
2022
2023
2024
2025
2026
2027static void msgo_run(struct Scsi_Host *shpnt)
2028{
2029 if(MSGO_I==MSGOLEN)
2030 DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2031
2032 while(MSGO_I<MSGOLEN) {
2033 DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
2034
2035 if(TESTLO(SSTAT0, SPIORDY)) {
2036 DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2037 return;
2038 }
2039
2040 if (MSGO_I==MSGOLEN-1) {
2041
2042 SETPORT(SSTAT1, CLRATNO);
2043 }
2044
2045
2046 if (MSGO(MSGO_I) & IDENTIFY_BASE)
2047 CURRENT_SC->SCp.phase |= identified;
2048
2049 if (MSGO(MSGO_I)==ABORT)
2050 CURRENT_SC->SCp.phase |= aborted;
2051
2052 if (MSGO(MSGO_I)==BUS_DEVICE_RESET)
2053 CURRENT_SC->SCp.phase |= resetted;
2054
2055 SETPORT(SCSIDAT, MSGO(MSGO_I++));
2056 }
2057}
2058
2059static void msgo_end(struct Scsi_Host *shpnt)
2060{
2061 if(MSGO_I<MSGOLEN) {
2062 printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
2063 if(SYNCNEG==1) {
2064 printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
2065 SYNCNEG=2;
2066 }
2067 }
2068
2069 MSGO_I = 0;
2070 MSGOLEN = 0;
2071}
2072
2073
2074
2075
2076
2077static void cmd_init(struct Scsi_Host *shpnt)
2078{
2079 if (CURRENT_SC->SCp.sent_command) {
2080 printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
2081 done(shpnt, DID_ERROR << 16);
2082 return;
2083 }
2084
2085#if defined(AHA152X_DEBUG)
2086 if (HOSTDATA(shpnt)->debug & debug_cmd) {
2087 printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
2088 __scsi_print_command(CURRENT_SC->cmnd);
2089 }
2090#endif
2091
2092 CMD_I=0;
2093}
2094
2095
2096
2097
2098
2099static void cmd_run(struct Scsi_Host *shpnt)
2100{
2101 if(CMD_I==CURRENT_SC->cmd_len) {
2102 DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2103 disp_ports(shpnt);
2104 }
2105
2106 while(CMD_I<CURRENT_SC->cmd_len) {
2107 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);
2108
2109 if(TESTLO(SSTAT0, SPIORDY)) {
2110 DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2111 return;
2112 }
2113
2114 SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
2115 }
2116}
2117
2118static void cmd_end(struct Scsi_Host *shpnt)
2119{
2120 if(CMD_I<CURRENT_SC->cmd_len)
2121 printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
2122 else
2123 CURRENT_SC->SCp.sent_command++;
2124}
2125
2126
2127
2128
2129
2130static void status_run(struct Scsi_Host *shpnt)
2131{
2132 if(TESTLO(SSTAT0,SPIORDY)) {
2133 DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
2134 return;
2135 }
2136
2137 CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
2138
2139#if defined(AHA152X_DEBUG)
2140 if (HOSTDATA(shpnt)->debug & debug_status) {
2141 printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
2142 scsi_print_status(CURRENT_SC->SCp.Status);
2143 printk("\n");
2144 }
2145#endif
2146}
2147
2148
2149
2150
2151
2152static void datai_init(struct Scsi_Host *shpnt)
2153{
2154 SETPORT(DMACNTRL0, RSTFIFO);
2155 SETPORT(DMACNTRL0, RSTFIFO|ENDMA);
2156
2157 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2158 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2159
2160 SETPORT(SIMODE0, 0);
2161 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
2162
2163 DATA_LEN=0;
2164 DPRINTK(debug_datai,
2165 DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
2166 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2167 scsi_get_resid(CURRENT_SC));
2168}
2169
2170static void datai_run(struct Scsi_Host *shpnt)
2171{
2172 unsigned long the_time;
2173 int fifodata, data_count;
2174
2175
2176
2177
2178
2179 while(TESTLO(DMASTAT, INTSTAT) || TESTLO(DMASTAT, DFIFOEMP) || TESTLO(SSTAT2, SEMPTY)) {
2180
2181
2182
2183
2184 the_time=jiffies + 100*HZ;
2185 while(TESTLO(DMASTAT, DFIFOFULL|INTSTAT) && time_before(jiffies,the_time))
2186 barrier();
2187
2188 if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
2189 printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
2190 disp_ports(shpnt);
2191 break;
2192 }
2193
2194 if(TESTHI(DMASTAT, DFIFOFULL)) {
2195 fifodata = 128;
2196 } else {
2197 the_time=jiffies + 100*HZ;
2198 while(TESTLO(SSTAT2, SEMPTY) && time_before(jiffies,the_time))
2199 barrier();
2200
2201 if(TESTLO(SSTAT2, SEMPTY)) {
2202 printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
2203 disp_ports(shpnt);
2204 break;
2205 }
2206
2207 fifodata = GETPORT(FIFOSTAT);
2208 }
2209
2210 if(CURRENT_SC->SCp.this_residual>0) {
2211 while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
2212 data_count = fifodata>CURRENT_SC->SCp.this_residual ?
2213 CURRENT_SC->SCp.this_residual :
2214 fifodata;
2215 fifodata -= data_count;
2216
2217 if(data_count & 1) {
2218 DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
2219 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2220 *CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
2221 CURRENT_SC->SCp.this_residual--;
2222 DATA_LEN++;
2223 SETPORT(DMACNTRL0, ENDMA);
2224 }
2225
2226 if(data_count > 1) {
2227 DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
2228 data_count >>= 1;
2229 insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2230 CURRENT_SC->SCp.ptr += 2 * data_count;
2231 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2232 DATA_LEN += 2 * data_count;
2233 }
2234
2235 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2236
2237 CURRENT_SC->SCp.buffers_residual--;
2238 CURRENT_SC->SCp.buffer++;
2239 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2240 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2241 }
2242 }
2243 } else if(fifodata>0) {
2244 printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
2245 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2246 while(fifodata>0) {
2247 int data;
2248 data=GETPORT(DATAPORT);
2249 DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
2250 fifodata--;
2251 DATA_LEN++;
2252 }
2253 SETPORT(DMACNTRL0, ENDMA|_8BIT);
2254 }
2255 }
2256
2257 if(TESTLO(DMASTAT, INTSTAT) ||
2258 TESTLO(DMASTAT, DFIFOEMP) ||
2259 TESTLO(SSTAT2, SEMPTY) ||
2260 GETPORT(FIFOSTAT)>0) {
2261
2262
2263
2264
2265 printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
2266 disp_ports(shpnt);
2267 }
2268
2269 if(DATA_LEN!=GETSTCNT()) {
2270 printk(ERR_LEAD
2271 "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
2272 CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
2273 disp_ports(shpnt);
2274 mdelay(10000);
2275 }
2276}
2277
2278static void datai_end(struct Scsi_Host *shpnt)
2279{
2280 CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
2281
2282 DPRINTK(debug_datai,
2283 DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
2284 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2285 scsi_get_resid(CURRENT_SC), GETSTCNT());
2286
2287 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2288 SETPORT(DMACNTRL0, 0);
2289}
2290
2291
2292
2293
2294
2295static void datao_init(struct Scsi_Host *shpnt)
2296{
2297 SETPORT(DMACNTRL0, WRITE_READ | RSTFIFO);
2298 SETPORT(DMACNTRL0, WRITE_READ | ENDMA);
2299
2300 SETPORT(SXFRCTL0, CH1|CLRSTCNT);
2301 SETPORT(SXFRCTL0, CH1|SCSIEN|DMAEN);
2302
2303 SETPORT(SIMODE0, 0);
2304 SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
2305
2306 DATA_LEN = scsi_get_resid(CURRENT_SC);
2307
2308 DPRINTK(debug_datao,
2309 DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
2310 CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
2311 scsi_get_resid(CURRENT_SC));
2312}
2313
2314static void datao_run(struct Scsi_Host *shpnt)
2315{
2316 unsigned long the_time;
2317 int data_count;
2318
2319
2320 while(TESTLO(DMASTAT, INTSTAT) && CURRENT_SC->SCp.this_residual>0) {
2321 data_count = 128;
2322 if(data_count > CURRENT_SC->SCp.this_residual)
2323 data_count=CURRENT_SC->SCp.this_residual;
2324
2325 if(TESTLO(DMASTAT, DFIFOEMP)) {
2326 printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
2327 disp_ports(shpnt);
2328 break;
2329 }
2330
2331 if(data_count & 1) {
2332 SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
2333 SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
2334 CURRENT_SC->SCp.this_residual--;
2335 CMD_INC_RESID(CURRENT_SC, -1);
2336 SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
2337 }
2338
2339 if(data_count > 1) {
2340 data_count >>= 1;
2341 outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
2342 CURRENT_SC->SCp.ptr += 2 * data_count;
2343 CURRENT_SC->SCp.this_residual -= 2 * data_count;
2344 CMD_INC_RESID(CURRENT_SC, -2 * data_count);
2345 }
2346
2347 if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
2348
2349 CURRENT_SC->SCp.buffers_residual--;
2350 CURRENT_SC->SCp.buffer++;
2351 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer);
2352 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
2353 }
2354
2355 the_time=jiffies + 100*HZ;
2356 while(TESTLO(DMASTAT, DFIFOEMP|INTSTAT) && time_before(jiffies,the_time))
2357 barrier();
2358
2359 if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
2360 printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
2361 disp_ports(shpnt);
2362 break;
2363 }
2364 }
2365}
2366
2367static void datao_end(struct Scsi_Host *shpnt)
2368{
2369 if(TESTLO(DMASTAT, DFIFOEMP)) {
2370 int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
2371 GETSTCNT();
2372
2373 DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
2374 CMDINFO(CURRENT_SC),
2375 data_count,
2376 DATA_LEN - scsi_get_resid(CURRENT_SC),
2377 GETSTCNT());
2378
2379 CMD_INC_RESID(CURRENT_SC, data_count);
2380
2381 data_count -= CURRENT_SC->SCp.ptr -
2382 SG_ADDRESS(CURRENT_SC->SCp.buffer);
2383 while(data_count>0) {
2384 CURRENT_SC->SCp.buffer--;
2385 CURRENT_SC->SCp.buffers_residual++;
2386 data_count -= CURRENT_SC->SCp.buffer->length;
2387 }
2388 CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
2389 data_count;
2390 CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
2391 data_count;
2392 }
2393
2394 DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
2395 CMDINFO(CURRENT_SC),
2396 scsi_bufflen(CURRENT_SC),
2397 scsi_get_resid(CURRENT_SC),
2398 GETSTCNT());
2399
2400 SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
2401 SETPORT(SXFRCTL0, CH1);
2402
2403 SETPORT(DMACNTRL0, 0);
2404}
2405
2406
2407
2408
2409
2410static int update_state(struct Scsi_Host *shpnt)
2411{
2412 int dataphase=0;
2413 unsigned int stat0 = GETPORT(SSTAT0);
2414 unsigned int stat1 = GETPORT(SSTAT1);
2415
2416 PREVSTATE = STATE;
2417 STATE=unknown;
2418
2419 if(stat1 & SCSIRSTI) {
2420 STATE=rsti;
2421 SETPORT(SCSISEQ,0);
2422 SETPORT(SSTAT1,SCSIRSTI);
2423 } else if(stat0 & SELDI && PREVSTATE==busfree) {
2424 STATE=seldi;
2425 } else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
2426 STATE=seldo;
2427 } else if(stat1 & SELTO) {
2428 STATE=selto;
2429 } else if(stat1 & BUSFREE) {
2430 STATE=busfree;
2431 SETPORT(SSTAT1,BUSFREE);
2432 } else if(stat1 & SCSIPERR) {
2433 STATE=parerr;
2434 SETPORT(SSTAT1,SCSIPERR);
2435 } else if(stat1 & REQINIT) {
2436 switch(GETPORT(SCSISIG) & P_MASK) {
2437 case P_MSGI: STATE=msgi; break;
2438 case P_MSGO: STATE=msgo; break;
2439 case P_DATAO: STATE=datao; break;
2440 case P_DATAI: STATE=datai; break;
2441 case P_STATUS: STATE=status; break;
2442 case P_CMD: STATE=cmd; break;
2443 }
2444 dataphase=1;
2445 }
2446
2447 if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
2448 printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
2449 disp_ports(shpnt);
2450 }
2451
2452 if(STATE!=PREVSTATE) {
2453 LASTSTATE=PREVSTATE;
2454 }
2455
2456 return dataphase;
2457}
2458
2459
2460
2461
2462
2463
2464
2465static void parerr_run(struct Scsi_Host *shpnt)
2466{
2467 printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
2468 done(shpnt, DID_PARITY << 16);
2469}
2470
2471
2472
2473
2474
2475static void rsti_run(struct Scsi_Host *shpnt)
2476{
2477 Scsi_Cmnd *ptr;
2478
2479 printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
2480
2481 ptr=DISCONNECTED_SC;
2482 while(ptr) {
2483 Scsi_Cmnd *next = SCNEXT(ptr);
2484
2485 if (!ptr->device->soft_reset) {
2486 remove_SC(&DISCONNECTED_SC, ptr);
2487
2488 kfree(ptr->host_scribble);
2489 ptr->host_scribble=NULL;
2490
2491 ptr->result = DID_RESET << 16;
2492 ptr->scsi_done(ptr);
2493 }
2494
2495 ptr = next;
2496 }
2497
2498 if(CURRENT_SC && !CURRENT_SC->device->soft_reset)
2499 done(shpnt, DID_RESET << 16 );
2500}
2501
2502
2503
2504
2505
2506
2507static void is_complete(struct Scsi_Host *shpnt)
2508{
2509 int dataphase;
2510 unsigned long flags;
2511 int pending;
2512
2513 if(!shpnt)
2514 return;
2515
2516 DO_LOCK(flags);
2517
2518 if( HOSTDATA(shpnt)->service==0 ) {
2519 DO_UNLOCK(flags);
2520 return;
2521 }
2522
2523 HOSTDATA(shpnt)->service = 0;
2524
2525 if(HOSTDATA(shpnt)->in_intr) {
2526 DO_UNLOCK(flags);
2527
2528 aha152x_error(shpnt, "bottom-half already running!?");
2529 }
2530 HOSTDATA(shpnt)->in_intr++;
2531
2532
2533
2534
2535
2536 do {
2537 unsigned long start = jiffies;
2538 DO_UNLOCK(flags);
2539
2540 dataphase=update_state(shpnt);
2541
2542 DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2543
2544
2545
2546
2547
2548 if(PREVSTATE!=STATE && states[PREVSTATE].end)
2549 states[PREVSTATE].end(shpnt);
2550
2551
2552
2553
2554
2555
2556 if(states[PREVSTATE].spio && !states[STATE].spio) {
2557 SETPORT(SXFRCTL0, CH1);
2558 SETPORT(DMACNTRL0, 0);
2559 if(CURRENT_SC)
2560 CURRENT_SC->SCp.phase &= ~spiordy;
2561 }
2562
2563
2564
2565
2566
2567 if(dataphase) {
2568 SETPORT(SSTAT0, REQINIT);
2569 SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
2570 SETPORT(SSTAT1, PHASECHG);
2571 }
2572
2573
2574
2575
2576
2577
2578 if(!states[PREVSTATE].spio && states[STATE].spio) {
2579 SETPORT(DMACNTRL0, 0);
2580 SETPORT(SXFRCTL0, CH1|SPIOEN);
2581 if(CURRENT_SC)
2582 CURRENT_SC->SCp.phase |= spiordy;
2583 }
2584
2585
2586
2587
2588
2589 if(PREVSTATE!=STATE && states[STATE].init)
2590 states[STATE].init(shpnt);
2591
2592
2593
2594
2595
2596 if(states[STATE].run)
2597 states[STATE].run(shpnt);
2598 else
2599 printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
2600
2601
2602
2603
2604
2605
2606
2607 DO_LOCK(flags);
2608 pending=setup_expected_interrupts(shpnt);
2609#if defined(AHA152X_STAT)
2610 HOSTDATA(shpnt)->count[STATE]++;
2611 if(PREVSTATE!=STATE)
2612 HOSTDATA(shpnt)->count_trans[STATE]++;
2613 HOSTDATA(shpnt)->time[STATE] += jiffies-start;
2614#endif
2615
2616 DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
2617 } while(pending);
2618
2619
2620
2621
2622
2623 HOSTDATA(shpnt)->in_intr--;
2624 SETBITS(DMACNTRL0, INTEN);
2625 DO_UNLOCK(flags);
2626}
2627
2628
2629
2630
2631
2632static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
2633{
2634 printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
2635 show_queues(shpnt);
2636 panic("aha152x panic\n");
2637}
2638
2639
2640
2641
2642static void disp_ports(struct Scsi_Host *shpnt)
2643{
2644#if defined(AHA152X_DEBUG)
2645 int s;
2646
2647 printk("\n%s: %s(%s) ",
2648 CURRENT_SC ? "busy" : "waiting",
2649 states[STATE].name,
2650 states[PREVSTATE].name);
2651
2652 s = GETPORT(SCSISEQ);
2653 printk("SCSISEQ( ");
2654 if (s & TEMODEO)
2655 printk("TARGET MODE ");
2656 if (s & ENSELO)
2657 printk("SELO ");
2658 if (s & ENSELI)
2659 printk("SELI ");
2660 if (s & ENRESELI)
2661 printk("RESELI ");
2662 if (s & ENAUTOATNO)
2663 printk("AUTOATNO ");
2664 if (s & ENAUTOATNI)
2665 printk("AUTOATNI ");
2666 if (s & ENAUTOATNP)
2667 printk("AUTOATNP ");
2668 if (s & SCSIRSTO)
2669 printk("SCSIRSTO ");
2670 printk(");");
2671
2672 printk(" SCSISIG(");
2673 s = GETPORT(SCSISIG);
2674 switch (s & P_MASK) {
2675 case P_DATAO:
2676 printk("DATA OUT");
2677 break;
2678 case P_DATAI:
2679 printk("DATA IN");
2680 break;
2681 case P_CMD:
2682 printk("COMMAND");
2683 break;
2684 case P_STATUS:
2685 printk("STATUS");
2686 break;
2687 case P_MSGO:
2688 printk("MESSAGE OUT");
2689 break;
2690 case P_MSGI:
2691 printk("MESSAGE IN");
2692 break;
2693 default:
2694 printk("*invalid*");
2695 break;
2696 }
2697
2698 printk("); ");
2699
2700 printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
2701
2702 printk("SSTAT( ");
2703 s = GETPORT(SSTAT0);
2704 if (s & TARGET)
2705 printk("TARGET ");
2706 if (s & SELDO)
2707 printk("SELDO ");
2708 if (s & SELDI)
2709 printk("SELDI ");
2710 if (s & SELINGO)
2711 printk("SELINGO ");
2712 if (s & SWRAP)
2713 printk("SWRAP ");
2714 if (s & SDONE)
2715 printk("SDONE ");
2716 if (s & SPIORDY)
2717 printk("SPIORDY ");
2718 if (s & DMADONE)
2719 printk("DMADONE ");
2720
2721 s = GETPORT(SSTAT1);
2722 if (s & SELTO)
2723 printk("SELTO ");
2724 if (s & ATNTARG)
2725 printk("ATNTARG ");
2726 if (s & SCSIRSTI)
2727 printk("SCSIRSTI ");
2728 if (s & PHASEMIS)
2729 printk("PHASEMIS ");
2730 if (s & BUSFREE)
2731 printk("BUSFREE ");
2732 if (s & SCSIPERR)
2733 printk("SCSIPERR ");
2734 if (s & PHASECHG)
2735 printk("PHASECHG ");
2736 if (s & REQINIT)
2737 printk("REQINIT ");
2738 printk("); ");
2739
2740
2741 printk("SSTAT( ");
2742
2743 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
2744
2745 if (s & TARGET)
2746 printk("TARGET ");
2747 if (s & SELDO)
2748 printk("SELDO ");
2749 if (s & SELDI)
2750 printk("SELDI ");
2751 if (s & SELINGO)
2752 printk("SELINGO ");
2753 if (s & SWRAP)
2754 printk("SWRAP ");
2755 if (s & SDONE)
2756 printk("SDONE ");
2757 if (s & SPIORDY)
2758 printk("SPIORDY ");
2759 if (s & DMADONE)
2760 printk("DMADONE ");
2761
2762 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
2763
2764 if (s & SELTO)
2765 printk("SELTO ");
2766 if (s & ATNTARG)
2767 printk("ATNTARG ");
2768 if (s & SCSIRSTI)
2769 printk("SCSIRSTI ");
2770 if (s & PHASEMIS)
2771 printk("PHASEMIS ");
2772 if (s & BUSFREE)
2773 printk("BUSFREE ");
2774 if (s & SCSIPERR)
2775 printk("SCSIPERR ");
2776 if (s & PHASECHG)
2777 printk("PHASECHG ");
2778 if (s & REQINIT)
2779 printk("REQINIT ");
2780 printk("); ");
2781
2782 printk("SXFRCTL0( ");
2783
2784 s = GETPORT(SXFRCTL0);
2785 if (s & SCSIEN)
2786 printk("SCSIEN ");
2787 if (s & DMAEN)
2788 printk("DMAEN ");
2789 if (s & CH1)
2790 printk("CH1 ");
2791 if (s & CLRSTCNT)
2792 printk("CLRSTCNT ");
2793 if (s & SPIOEN)
2794 printk("SPIOEN ");
2795 if (s & CLRCH1)
2796 printk("CLRCH1 ");
2797 printk("); ");
2798
2799 printk("SIGNAL( ");
2800
2801 s = GETPORT(SCSISIG);
2802 if (s & SIG_ATNI)
2803 printk("ATNI ");
2804 if (s & SIG_SELI)
2805 printk("SELI ");
2806 if (s & SIG_BSYI)
2807 printk("BSYI ");
2808 if (s & SIG_REQI)
2809 printk("REQI ");
2810 if (s & SIG_ACKI)
2811 printk("ACKI ");
2812 printk("); ");
2813
2814 printk("SELID (%02x), ", GETPORT(SELID));
2815
2816 printk("STCNT (%d), ", GETSTCNT());
2817
2818 printk("SSTAT2( ");
2819
2820 s = GETPORT(SSTAT2);
2821 if (s & SOFFSET)
2822 printk("SOFFSET ");
2823 if (s & SEMPTY)
2824 printk("SEMPTY ");
2825 if (s & SFULL)
2826 printk("SFULL ");
2827 printk("); SFCNT (%d); ", s & (SFULL | SFCNT));
2828
2829 s = GETPORT(SSTAT3);
2830 printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
2831
2832 printk("SSTAT4( ");
2833 s = GETPORT(SSTAT4);
2834 if (s & SYNCERR)
2835 printk("SYNCERR ");
2836 if (s & FWERR)
2837 printk("FWERR ");
2838 if (s & FRERR)
2839 printk("FRERR ");
2840 printk("); ");
2841
2842 printk("DMACNTRL0( ");
2843 s = GETPORT(DMACNTRL0);
2844 printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
2845 printk("%s ", s & DMA ? "DMA" : "PIO");
2846 printk("%s ", s & WRITE_READ ? "WRITE" : "READ");
2847 if (s & ENDMA)
2848 printk("ENDMA ");
2849 if (s & INTEN)
2850 printk("INTEN ");
2851 if (s & RSTFIFO)
2852 printk("RSTFIFO ");
2853 if (s & SWINT)
2854 printk("SWINT ");
2855 printk("); ");
2856
2857 printk("DMASTAT( ");
2858 s = GETPORT(DMASTAT);
2859 if (s & ATDONE)
2860 printk("ATDONE ");
2861 if (s & WORDRDY)
2862 printk("WORDRDY ");
2863 if (s & DFIFOFULL)
2864 printk("DFIFOFULL ");
2865 if (s & DFIFOEMP)
2866 printk("DFIFOEMP ");
2867 printk(")\n");
2868#endif
2869}
2870
2871
2872
2873
2874static void disp_enintr(struct Scsi_Host *shpnt)
2875{
2876 int s;
2877
2878 printk(KERN_DEBUG "enabled interrupts ( ");
2879
2880 s = GETPORT(SIMODE0);
2881 if (s & ENSELDO)
2882 printk("ENSELDO ");
2883 if (s & ENSELDI)
2884 printk("ENSELDI ");
2885 if (s & ENSELINGO)
2886 printk("ENSELINGO ");
2887 if (s & ENSWRAP)
2888 printk("ENSWRAP ");
2889 if (s & ENSDONE)
2890 printk("ENSDONE ");
2891 if (s & ENSPIORDY)
2892 printk("ENSPIORDY ");
2893 if (s & ENDMADONE)
2894 printk("ENDMADONE ");
2895
2896 s = GETPORT(SIMODE1);
2897 if (s & ENSELTIMO)
2898 printk("ENSELTIMO ");
2899 if (s & ENATNTARG)
2900 printk("ENATNTARG ");
2901 if (s & ENPHASEMIS)
2902 printk("ENPHASEMIS ");
2903 if (s & ENBUSFREE)
2904 printk("ENBUSFREE ");
2905 if (s & ENSCSIPERR)
2906 printk("ENSCSIPERR ");
2907 if (s & ENPHASECHG)
2908 printk("ENPHASECHG ");
2909 if (s & ENREQINIT)
2910 printk("ENREQINIT ");
2911 printk(")\n");
2912}
2913
2914
2915
2916
2917static void show_command(Scsi_Cmnd *ptr)
2918{
2919 scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
2920
2921 __scsi_print_command(ptr->cmnd);
2922
2923 printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
2924 scsi_bufflen(ptr), scsi_get_resid(ptr));
2925
2926 if (ptr->SCp.phase & not_issued)
2927 printk("not issued|");
2928 if (ptr->SCp.phase & selecting)
2929 printk("selecting|");
2930 if (ptr->SCp.phase & identified)
2931 printk("identified|");
2932 if (ptr->SCp.phase & disconnected)
2933 printk("disconnected|");
2934 if (ptr->SCp.phase & completed)
2935 printk("completed|");
2936 if (ptr->SCp.phase & spiordy)
2937 printk("spiordy|");
2938 if (ptr->SCp.phase & syncneg)
2939 printk("syncneg|");
2940 if (ptr->SCp.phase & aborted)
2941 printk("aborted|");
2942 if (ptr->SCp.phase & resetted)
2943 printk("resetted|");
2944 if( SCDATA(ptr) ) {
2945 printk("; next=0x%p\n", SCNEXT(ptr));
2946 } else {
2947 printk("; next=(host scribble NULL)\n");
2948 }
2949}
2950
2951
2952
2953
2954static void show_queues(struct Scsi_Host *shpnt)
2955{
2956 Scsi_Cmnd *ptr;
2957 unsigned long flags;
2958
2959 DO_LOCK(flags);
2960 printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
2961 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
2962 show_command(ptr);
2963 DO_UNLOCK(flags);
2964
2965 printk(KERN_DEBUG "current_SC:\n");
2966 if (CURRENT_SC)
2967 show_command(CURRENT_SC);
2968 else
2969 printk(KERN_DEBUG "none\n");
2970
2971 printk(KERN_DEBUG "disconnected_SC:\n");
2972 for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
2973 show_command(ptr);
2974
2975 disp_ports(shpnt);
2976 disp_enintr(shpnt);
2977}
2978
2979#undef SPRINTF
2980#define SPRINTF(args...) seq_printf(m, ##args)
2981
2982static void get_command(struct seq_file *m, Scsi_Cmnd * ptr)
2983{
2984 int i;
2985
2986 SPRINTF("%p: target=%d; lun=%d; cmnd=( ",
2987 ptr, ptr->device->id, ptr->device->lun);
2988
2989 for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
2990 SPRINTF("0x%02x ", ptr->cmnd[i]);
2991
2992 SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
2993 scsi_get_resid(ptr), ptr->SCp.this_residual,
2994 ptr->SCp.buffers_residual);
2995
2996 if (ptr->SCp.phase & not_issued)
2997 SPRINTF("not issued|");
2998 if (ptr->SCp.phase & selecting)
2999 SPRINTF("selecting|");
3000 if (ptr->SCp.phase & disconnected)
3001 SPRINTF("disconnected|");
3002 if (ptr->SCp.phase & aborted)
3003 SPRINTF("aborted|");
3004 if (ptr->SCp.phase & identified)
3005 SPRINTF("identified|");
3006 if (ptr->SCp.phase & completed)
3007 SPRINTF("completed|");
3008 if (ptr->SCp.phase & spiordy)
3009 SPRINTF("spiordy|");
3010 if (ptr->SCp.phase & syncneg)
3011 SPRINTF("syncneg|");
3012 SPRINTF("; next=0x%p\n", SCNEXT(ptr));
3013}
3014
3015static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt)
3016{
3017 int s;
3018
3019 SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
3020
3021 s = GETPORT(SCSISEQ);
3022 SPRINTF("SCSISEQ( ");
3023 if (s & TEMODEO)
3024 SPRINTF("TARGET MODE ");
3025 if (s & ENSELO)
3026 SPRINTF("SELO ");
3027 if (s & ENSELI)
3028 SPRINTF("SELI ");
3029 if (s & ENRESELI)
3030 SPRINTF("RESELI ");
3031 if (s & ENAUTOATNO)
3032 SPRINTF("AUTOATNO ");
3033 if (s & ENAUTOATNI)
3034 SPRINTF("AUTOATNI ");
3035 if (s & ENAUTOATNP)
3036 SPRINTF("AUTOATNP ");
3037 if (s & SCSIRSTO)
3038 SPRINTF("SCSIRSTO ");
3039 SPRINTF(");");
3040
3041 SPRINTF(" SCSISIG(");
3042 s = GETPORT(SCSISIG);
3043 switch (s & P_MASK) {
3044 case P_DATAO:
3045 SPRINTF("DATA OUT");
3046 break;
3047 case P_DATAI:
3048 SPRINTF("DATA IN");
3049 break;
3050 case P_CMD:
3051 SPRINTF("COMMAND");
3052 break;
3053 case P_STATUS:
3054 SPRINTF("STATUS");
3055 break;
3056 case P_MSGO:
3057 SPRINTF("MESSAGE OUT");
3058 break;
3059 case P_MSGI:
3060 SPRINTF("MESSAGE IN");
3061 break;
3062 default:
3063 SPRINTF("*invalid*");
3064 break;
3065 }
3066
3067 SPRINTF("); ");
3068
3069 SPRINTF("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
3070
3071 SPRINTF("SSTAT( ");
3072 s = GETPORT(SSTAT0);
3073 if (s & TARGET)
3074 SPRINTF("TARGET ");
3075 if (s & SELDO)
3076 SPRINTF("SELDO ");
3077 if (s & SELDI)
3078 SPRINTF("SELDI ");
3079 if (s & SELINGO)
3080 SPRINTF("SELINGO ");
3081 if (s & SWRAP)
3082 SPRINTF("SWRAP ");
3083 if (s & SDONE)
3084 SPRINTF("SDONE ");
3085 if (s & SPIORDY)
3086 SPRINTF("SPIORDY ");
3087 if (s & DMADONE)
3088 SPRINTF("DMADONE ");
3089
3090 s = GETPORT(SSTAT1);
3091 if (s & SELTO)
3092 SPRINTF("SELTO ");
3093 if (s & ATNTARG)
3094 SPRINTF("ATNTARG ");
3095 if (s & SCSIRSTI)
3096 SPRINTF("SCSIRSTI ");
3097 if (s & PHASEMIS)
3098 SPRINTF("PHASEMIS ");
3099 if (s & BUSFREE)
3100 SPRINTF("BUSFREE ");
3101 if (s & SCSIPERR)
3102 SPRINTF("SCSIPERR ");
3103 if (s & PHASECHG)
3104 SPRINTF("PHASECHG ");
3105 if (s & REQINIT)
3106 SPRINTF("REQINIT ");
3107 SPRINTF("); ");
3108
3109
3110 SPRINTF("SSTAT( ");
3111
3112 s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
3113
3114 if (s & TARGET)
3115 SPRINTF("TARGET ");
3116 if (s & SELDO)
3117 SPRINTF("SELDO ");
3118 if (s & SELDI)
3119 SPRINTF("SELDI ");
3120 if (s & SELINGO)
3121 SPRINTF("SELINGO ");
3122 if (s & SWRAP)
3123 SPRINTF("SWRAP ");
3124 if (s & SDONE)
3125 SPRINTF("SDONE ");
3126 if (s & SPIORDY)
3127 SPRINTF("SPIORDY ");
3128 if (s & DMADONE)
3129 SPRINTF("DMADONE ");
3130
3131 s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
3132
3133 if (s & SELTO)
3134 SPRINTF("SELTO ");
3135 if (s & ATNTARG)
3136 SPRINTF("ATNTARG ");
3137 if (s & SCSIRSTI)
3138 SPRINTF("SCSIRSTI ");
3139 if (s & PHASEMIS)
3140 SPRINTF("PHASEMIS ");
3141 if (s & BUSFREE)
3142 SPRINTF("BUSFREE ");
3143 if (s & SCSIPERR)
3144 SPRINTF("SCSIPERR ");
3145 if (s & PHASECHG)
3146 SPRINTF("PHASECHG ");
3147 if (s & REQINIT)
3148 SPRINTF("REQINIT ");
3149 SPRINTF("); ");
3150
3151 SPRINTF("SXFRCTL0( ");
3152
3153 s = GETPORT(SXFRCTL0);
3154 if (s & SCSIEN)
3155 SPRINTF("SCSIEN ");
3156 if (s & DMAEN)
3157 SPRINTF("DMAEN ");
3158 if (s & CH1)
3159 SPRINTF("CH1 ");
3160 if (s & CLRSTCNT)
3161 SPRINTF("CLRSTCNT ");
3162 if (s & SPIOEN)
3163 SPRINTF("SPIOEN ");
3164 if (s & CLRCH1)
3165 SPRINTF("CLRCH1 ");
3166 SPRINTF("); ");
3167
3168 SPRINTF("SIGNAL( ");
3169
3170 s = GETPORT(SCSISIG);
3171 if (s & SIG_ATNI)
3172 SPRINTF("ATNI ");
3173 if (s & SIG_SELI)
3174 SPRINTF("SELI ");
3175 if (s & SIG_BSYI)
3176 SPRINTF("BSYI ");
3177 if (s & SIG_REQI)
3178 SPRINTF("REQI ");
3179 if (s & SIG_ACKI)
3180 SPRINTF("ACKI ");
3181 SPRINTF("); ");
3182
3183 SPRINTF("SELID(%02x), ", GETPORT(SELID));
3184
3185 SPRINTF("STCNT(%d), ", GETSTCNT());
3186
3187 SPRINTF("SSTAT2( ");
3188
3189 s = GETPORT(SSTAT2);
3190 if (s & SOFFSET)
3191 SPRINTF("SOFFSET ");
3192 if (s & SEMPTY)
3193 SPRINTF("SEMPTY ");
3194 if (s & SFULL)
3195 SPRINTF("SFULL ");
3196 SPRINTF("); SFCNT (%d); ", s & (SFULL | SFCNT));
3197
3198 s = GETPORT(SSTAT3);
3199 SPRINTF("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
3200
3201 SPRINTF("SSTAT4( ");
3202 s = GETPORT(SSTAT4);
3203 if (s & SYNCERR)
3204 SPRINTF("SYNCERR ");
3205 if (s & FWERR)
3206 SPRINTF("FWERR ");
3207 if (s & FRERR)
3208 SPRINTF("FRERR ");
3209 SPRINTF("); ");
3210
3211 SPRINTF("DMACNTRL0( ");
3212 s = GETPORT(DMACNTRL0);
3213 SPRINTF("%s ", s & _8BIT ? "8BIT" : "16BIT");
3214 SPRINTF("%s ", s & DMA ? "DMA" : "PIO");
3215 SPRINTF("%s ", s & WRITE_READ ? "WRITE" : "READ");
3216 if (s & ENDMA)
3217 SPRINTF("ENDMA ");
3218 if (s & INTEN)
3219 SPRINTF("INTEN ");
3220 if (s & RSTFIFO)
3221 SPRINTF("RSTFIFO ");
3222 if (s & SWINT)
3223 SPRINTF("SWINT ");
3224 SPRINTF("); ");
3225
3226 SPRINTF("DMASTAT( ");
3227 s = GETPORT(DMASTAT);
3228 if (s & ATDONE)
3229 SPRINTF("ATDONE ");
3230 if (s & WORDRDY)
3231 SPRINTF("WORDRDY ");
3232 if (s & DFIFOFULL)
3233 SPRINTF("DFIFOFULL ");
3234 if (s & DFIFOEMP)
3235 SPRINTF("DFIFOEMP ");
3236 SPRINTF(")\n");
3237
3238 SPRINTF("enabled interrupts( ");
3239
3240 s = GETPORT(SIMODE0);
3241 if (s & ENSELDO)
3242 SPRINTF("ENSELDO ");
3243 if (s & ENSELDI)
3244 SPRINTF("ENSELDI ");
3245 if (s & ENSELINGO)
3246 SPRINTF("ENSELINGO ");
3247 if (s & ENSWRAP)
3248 SPRINTF("ENSWRAP ");
3249 if (s & ENSDONE)
3250 SPRINTF("ENSDONE ");
3251 if (s & ENSPIORDY)
3252 SPRINTF("ENSPIORDY ");
3253 if (s & ENDMADONE)
3254 SPRINTF("ENDMADONE ");
3255
3256 s = GETPORT(SIMODE1);
3257 if (s & ENSELTIMO)
3258 SPRINTF("ENSELTIMO ");
3259 if (s & ENATNTARG)
3260 SPRINTF("ENATNTARG ");
3261 if (s & ENPHASEMIS)
3262 SPRINTF("ENPHASEMIS ");
3263 if (s & ENBUSFREE)
3264 SPRINTF("ENBUSFREE ");
3265 if (s & ENSCSIPERR)
3266 SPRINTF("ENSCSIPERR ");
3267 if (s & ENPHASECHG)
3268 SPRINTF("ENPHASECHG ");
3269 if (s & ENREQINIT)
3270 SPRINTF("ENREQINIT ");
3271 SPRINTF(")\n");
3272}
3273
3274static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length)
3275{
3276 if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
3277 return -EINVAL;
3278
3279#if defined(AHA152X_DEBUG)
3280 if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
3281 int debug = HOSTDATA(shpnt)->debug;
3282
3283 HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
3284
3285 printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
3286 } else
3287#endif
3288#if defined(AHA152X_STAT)
3289 if(length>13 && strncmp("reset", buffer+8, 5)==0) {
3290 int i;
3291
3292 HOSTDATA(shpnt)->total_commands=0;
3293 HOSTDATA(shpnt)->disconnections=0;
3294 HOSTDATA(shpnt)->busfree_without_any_action=0;
3295 HOSTDATA(shpnt)->busfree_without_old_command=0;
3296 HOSTDATA(shpnt)->busfree_without_new_command=0;
3297 HOSTDATA(shpnt)->busfree_without_done_command=0;
3298 HOSTDATA(shpnt)->busfree_with_check_condition=0;
3299 for (i = idle; i<maxstate; i++) {
3300 HOSTDATA(shpnt)->count[i]=0;
3301 HOSTDATA(shpnt)->count_trans[i]=0;
3302 HOSTDATA(shpnt)->time[i]=0;
3303 }
3304
3305 printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
3306
3307 } else
3308#endif
3309 {
3310 return -EINVAL;
3311 }
3312
3313
3314 return length;
3315}
3316
3317static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
3318{
3319 int i;
3320 Scsi_Cmnd *ptr;
3321 unsigned long flags;
3322
3323 SPRINTF(AHA152X_REVID "\n");
3324
3325 SPRINTF("ioports 0x%04lx to 0x%04lx\n",
3326 shpnt->io_port, shpnt->io_port + shpnt->n_io_port - 1);
3327 SPRINTF("interrupt 0x%02x\n", shpnt->irq);
3328 SPRINTF("disconnection/reconnection %s\n",
3329 RECONNECT ? "enabled" : "disabled");
3330 SPRINTF("parity checking %s\n",
3331 PARITY ? "enabled" : "disabled");
3332 SPRINTF("synchronous transfers %s\n",
3333 SYNCHRONOUS ? "enabled" : "disabled");
3334 SPRINTF("%d commands currently queued\n", HOSTDATA(shpnt)->commands);
3335
3336 if(SYNCHRONOUS) {
3337 SPRINTF("synchronously operating targets (tick=50 ns):\n");
3338 for (i = 0; i < 8; i++)
3339 if (HOSTDATA(shpnt)->syncrate[i] & 0x7f)
3340 SPRINTF("target %d: period %dT/%dns; req/ack offset %d\n",
3341 i,
3342 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2),
3343 (((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
3344 HOSTDATA(shpnt)->syncrate[i] & 0x0f);
3345 }
3346#if defined(AHA152X_DEBUG)
3347#define PDEBUG(flags,txt) \
3348 if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
3349
3350 SPRINTF("enabled debugging options: ");
3351
3352 PDEBUG(debug_procinfo, "procinfo");
3353 PDEBUG(debug_queue, "queue");
3354 PDEBUG(debug_intr, "interrupt");
3355 PDEBUG(debug_selection, "selection");
3356 PDEBUG(debug_msgo, "message out");
3357 PDEBUG(debug_msgi, "message in");
3358 PDEBUG(debug_status, "status");
3359 PDEBUG(debug_cmd, "command");
3360 PDEBUG(debug_datai, "data in");
3361 PDEBUG(debug_datao, "data out");
3362 PDEBUG(debug_eh, "eh");
3363 PDEBUG(debug_locking, "locks");
3364 PDEBUG(debug_phases, "phases");
3365
3366 SPRINTF("\n");
3367#endif
3368
3369 SPRINTF("\nqueue status:\n");
3370 DO_LOCK(flags);
3371 if (ISSUE_SC) {
3372 SPRINTF("not yet issued commands:\n");
3373 for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
3374 get_command(m, ptr);
3375 } else
3376 SPRINTF("no not yet issued commands\n");
3377 DO_UNLOCK(flags);
3378
3379 if (CURRENT_SC) {
3380 SPRINTF("current command:\n");
3381 get_command(m, CURRENT_SC);
3382 } else
3383 SPRINTF("no current command\n");
3384
3385 if (DISCONNECTED_SC) {
3386 SPRINTF("disconnected commands:\n");
3387 for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
3388 get_command(m, ptr);
3389 } else
3390 SPRINTF("no disconnected commands\n");
3391
3392 get_ports(m, shpnt);
3393
3394#if defined(AHA152X_STAT)
3395 SPRINTF("statistics:\n"
3396 "total commands: %d\n"
3397 "disconnections: %d\n"
3398 "busfree with check condition: %d\n"
3399 "busfree without old command: %d\n"
3400 "busfree without new command: %d\n"
3401 "busfree without done command: %d\n"
3402 "busfree without any action: %d\n"
3403 "state "
3404 "transitions "
3405 "count "
3406 "time\n",
3407 HOSTDATA(shpnt)->total_commands,
3408 HOSTDATA(shpnt)->disconnections,
3409 HOSTDATA(shpnt)->busfree_with_check_condition,
3410 HOSTDATA(shpnt)->busfree_without_old_command,
3411 HOSTDATA(shpnt)->busfree_without_new_command,
3412 HOSTDATA(shpnt)->busfree_without_done_command,
3413 HOSTDATA(shpnt)->busfree_without_any_action);
3414 for(i=0; i<maxstate; i++) {
3415 SPRINTF("%-10s %-12d %-12d %-12ld\n",
3416 states[i].name,
3417 HOSTDATA(shpnt)->count_trans[i],
3418 HOSTDATA(shpnt)->count[i],
3419 HOSTDATA(shpnt)->time[i]);
3420 }
3421#endif
3422 return 0;
3423}
3424
3425static int aha152x_adjust_queue(struct scsi_device *device)
3426{
3427 blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
3428 return 0;
3429}
3430
3431static struct scsi_host_template aha152x_driver_template = {
3432 .module = THIS_MODULE,
3433 .name = AHA152X_REVID,
3434 .proc_name = "aha152x",
3435 .show_info = aha152x_show_info,
3436 .write_info = aha152x_set_info,
3437 .queuecommand = aha152x_queue,
3438 .eh_abort_handler = aha152x_abort,
3439 .eh_device_reset_handler = aha152x_device_reset,
3440 .eh_bus_reset_handler = aha152x_bus_reset,
3441 .eh_host_reset_handler = aha152x_host_reset,
3442 .bios_param = aha152x_biosparam,
3443 .can_queue = 1,
3444 .this_id = 7,
3445 .sg_tablesize = SG_ALL,
3446 .cmd_per_lun = 1,
3447 .use_clustering = DISABLE_CLUSTERING,
3448 .slave_alloc = aha152x_adjust_queue,
3449};
3450
3451#if !defined(PCMCIA)
3452static int setup_count;
3453static struct aha152x_setup setup[2];
3454
3455
3456static unsigned short ports[] = { 0x340, 0x140 };
3457
3458#if !defined(SKIP_BIOSTEST)
3459
3460static unsigned int addresses[] =
3461{
3462 0xdc000,
3463 0xc8000,
3464 0xcc000,
3465 0xd0000,
3466 0xd4000,
3467 0xd8000,
3468 0xe0000,
3469 0xeb800,
3470 0xf0000,
3471};
3472
3473
3474
3475
3476
3477
3478
3479
3480static struct signature {
3481 unsigned char *signature;
3482 int sig_offset;
3483 int sig_length;
3484} signatures[] =
3485{
3486 { "Adaptec AHA-1520 BIOS", 0x102e, 21 },
3487
3488 { "Adaptec AHA-1520B", 0x000b, 17 },
3489
3490 { "Adaptec AHA-1520B", 0x0026, 17 },
3491
3492 { "Adaptec ASW-B626 BIOS", 0x1029, 21 },
3493
3494 { "Adaptec BIOS: ASW-B626", 0x000f, 22 },
3495
3496 { "Adaptec ASW-B626 S2", 0x2e6c, 19 },
3497
3498 { "Adaptec BIOS:AIC-6360", 0x000c, 21 },
3499
3500 { "ScsiPro SP-360 BIOS", 0x2873, 19 },
3501
3502 { "GA-400 LOCAL BUS SCSI BIOS", 0x102e, 26 },
3503
3504 { "Adaptec BIOS:AVA-282X", 0x000c, 21 },
3505
3506 { "Adaptec IBM Dock II SCSI", 0x2edd, 24 },
3507
3508 { "Adaptec BIOS:AHA-1532P", 0x001c, 22 },
3509
3510 { "DTC3520A Host Adapter BIOS", 0x318a, 26 },
3511
3512};
3513#endif
3514
3515
3516
3517
3518
3519static int aha152x_porttest(int io_port)
3520{
3521 int i;
3522
3523 SETPORT(io_port + O_DMACNTRL1, 0);
3524 for (i = 0; i < 16; i++)
3525 SETPORT(io_port + O_STACK, i);
3526
3527 SETPORT(io_port + O_DMACNTRL1, 0);
3528 for (i = 0; i < 16 && GETPORT(io_port + O_STACK) == i; i++)
3529 ;
3530
3531 return (i == 16);
3532}
3533
3534static int tc1550_porttest(int io_port)
3535{
3536 int i;
3537
3538 SETPORT(io_port + O_TC_DMACNTRL1, 0);
3539 for (i = 0; i < 16; i++)
3540 SETPORT(io_port + O_STACK, i);
3541
3542 SETPORT(io_port + O_TC_DMACNTRL1, 0);
3543 for (i = 0; i < 16 && GETPORT(io_port + O_TC_STACK) == i; i++)
3544 ;
3545
3546 return (i == 16);
3547}
3548
3549
3550static int checksetup(struct aha152x_setup *setup)
3551{
3552 int i;
3553 for (i = 0; i < ARRAY_SIZE(ports) && (setup->io_port != ports[i]); i++)
3554 ;
3555
3556 if (i == ARRAY_SIZE(ports))
3557 return 0;
3558
3559 if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
3560 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
3561 return 0;
3562 }
3563
3564 if( aha152x_porttest(setup->io_port) ) {
3565 setup->tc1550=0;
3566 } else if( tc1550_porttest(setup->io_port) ) {
3567 setup->tc1550=1;
3568 } else {
3569 release_region(setup->io_port, IO_RANGE);
3570 return 0;
3571 }
3572
3573 release_region(setup->io_port, IO_RANGE);
3574
3575 if ((setup->irq < IRQ_MIN) || (setup->irq > IRQ_MAX))
3576 return 0;
3577
3578 if ((setup->scsiid < 0) || (setup->scsiid > 7))
3579 return 0;
3580
3581 if ((setup->reconnect < 0) || (setup->reconnect > 1))
3582 return 0;
3583
3584 if ((setup->parity < 0) || (setup->parity > 1))
3585 return 0;
3586
3587 if ((setup->synchronous < 0) || (setup->synchronous > 1))
3588 return 0;
3589
3590 if ((setup->ext_trans < 0) || (setup->ext_trans > 1))
3591 return 0;
3592
3593
3594 return 1;
3595}
3596
3597
3598static int __init aha152x_init(void)
3599{
3600 int i, j, ok;
3601#if defined(AUTOCONF)
3602 aha152x_config conf;
3603#endif
3604#ifdef __ISAPNP__
3605 struct pnp_dev *dev=NULL, *pnpdev[2] = {NULL, NULL};
3606#endif
3607
3608 if ( setup_count ) {
3609 printk(KERN_INFO "aha152x: processing commandline: ");
3610
3611 for (i = 0; i<setup_count; i++) {
3612 if (!checksetup(&setup[i])) {
3613 printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
3614 printk(KERN_ERR "aha152x: invalid line\n");
3615 }
3616 }
3617 printk("ok\n");
3618 }
3619
3620#if defined(SETUP0)
3621 if (setup_count < ARRAY_SIZE(setup)) {
3622 struct aha152x_setup override = SETUP0;
3623
3624 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3625 if (!checksetup(&override)) {
3626 printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3627 override.io_port,
3628 override.irq,
3629 override.scsiid,
3630 override.reconnect,
3631 override.parity,
3632 override.synchronous,
3633 override.delay,
3634 override.ext_trans);
3635 } else
3636 setup[setup_count++] = override;
3637 }
3638 }
3639#endif
3640
3641#if defined(SETUP1)
3642 if (setup_count < ARRAY_SIZE(setup)) {
3643 struct aha152x_setup override = SETUP1;
3644
3645 if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
3646 if (!checksetup(&override)) {
3647 printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
3648 override.io_port,
3649 override.irq,
3650 override.scsiid,
3651 override.reconnect,
3652 override.parity,
3653 override.synchronous,
3654 override.delay,
3655 override.ext_trans);
3656 } else
3657 setup[setup_count++] = override;
3658 }
3659 }
3660#endif
3661
3662#if defined(MODULE)
3663 if (setup_count<ARRAY_SIZE(setup) && (aha152x[0]!=0 || io[0]!=0 || irq[0]!=0)) {
3664 if(aha152x[0]!=0) {
3665 setup[setup_count].conf = "";
3666 setup[setup_count].io_port = aha152x[0];
3667 setup[setup_count].irq = aha152x[1];
3668 setup[setup_count].scsiid = aha152x[2];
3669 setup[setup_count].reconnect = aha152x[3];
3670 setup[setup_count].parity = aha152x[4];
3671 setup[setup_count].synchronous = aha152x[5];
3672 setup[setup_count].delay = aha152x[6];
3673 setup[setup_count].ext_trans = aha152x[7];
3674#if defined(AHA152X_DEBUG)
3675 setup[setup_count].debug = aha152x[8];
3676#endif
3677 } else if(io[0]!=0 || irq[0]!=0) {
3678 if(io[0]!=0) setup[setup_count].io_port = io[0];
3679 if(irq[0]!=0) setup[setup_count].irq = irq[0];
3680
3681 setup[setup_count].scsiid = scsiid[0];
3682 setup[setup_count].reconnect = reconnect[0];
3683 setup[setup_count].parity = parity[0];
3684 setup[setup_count].synchronous = sync[0];
3685 setup[setup_count].delay = delay[0];
3686 setup[setup_count].ext_trans = exttrans[0];
3687#if defined(AHA152X_DEBUG)
3688 setup[setup_count].debug = debug[0];
3689#endif
3690 }
3691
3692 if (checksetup(&setup[setup_count]))
3693 setup_count++;
3694 else
3695 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",
3696 setup[setup_count].io_port,
3697 setup[setup_count].irq,
3698 setup[setup_count].scsiid,
3699 setup[setup_count].reconnect,
3700 setup[setup_count].parity,
3701 setup[setup_count].synchronous,
3702 setup[setup_count].delay,
3703 setup[setup_count].ext_trans);
3704 }
3705
3706 if (setup_count<ARRAY_SIZE(setup) && (aha152x1[0]!=0 || io[1]!=0 || irq[1]!=0)) {
3707 if(aha152x1[0]!=0) {
3708 setup[setup_count].conf = "";
3709 setup[setup_count].io_port = aha152x1[0];
3710 setup[setup_count].irq = aha152x1[1];
3711 setup[setup_count].scsiid = aha152x1[2];
3712 setup[setup_count].reconnect = aha152x1[3];
3713 setup[setup_count].parity = aha152x1[4];
3714 setup[setup_count].synchronous = aha152x1[5];
3715 setup[setup_count].delay = aha152x1[6];
3716 setup[setup_count].ext_trans = aha152x1[7];
3717#if defined(AHA152X_DEBUG)
3718 setup[setup_count].debug = aha152x1[8];
3719#endif
3720 } else if(io[1]!=0 || irq[1]!=0) {
3721 if(io[1]!=0) setup[setup_count].io_port = io[1];
3722 if(irq[1]!=0) setup[setup_count].irq = irq[1];
3723
3724 setup[setup_count].scsiid = scsiid[1];
3725 setup[setup_count].reconnect = reconnect[1];
3726 setup[setup_count].parity = parity[1];
3727 setup[setup_count].synchronous = sync[1];
3728 setup[setup_count].delay = delay[1];
3729 setup[setup_count].ext_trans = exttrans[1];
3730#if defined(AHA152X_DEBUG)
3731 setup[setup_count].debug = debug[1];
3732#endif
3733 }
3734 if (checksetup(&setup[setup_count]))
3735 setup_count++;
3736 else
3737 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",
3738 setup[setup_count].io_port,
3739 setup[setup_count].irq,
3740 setup[setup_count].scsiid,
3741 setup[setup_count].reconnect,
3742 setup[setup_count].parity,
3743 setup[setup_count].synchronous,
3744 setup[setup_count].delay,
3745 setup[setup_count].ext_trans);
3746 }
3747#endif
3748
3749#ifdef __ISAPNP__
3750 for(i=0; setup_count<ARRAY_SIZE(setup) && id_table[i].vendor; i++) {
3751 while ( setup_count<ARRAY_SIZE(setup) &&
3752 (dev=pnp_find_dev(NULL, id_table[i].vendor, id_table[i].function, dev)) ) {
3753 if (pnp_device_attach(dev) < 0)
3754 continue;
3755
3756 if (pnp_activate_dev(dev) < 0) {
3757 pnp_device_detach(dev);
3758 continue;
3759 }
3760
3761 if (!pnp_port_valid(dev, 0)) {
3762 pnp_device_detach(dev);
3763 continue;
3764 }
3765
3766 if (setup_count==1 && pnp_port_start(dev, 0)==setup[0].io_port) {
3767 pnp_device_detach(dev);
3768 continue;
3769 }
3770
3771 setup[setup_count].io_port = pnp_port_start(dev, 0);
3772 setup[setup_count].irq = pnp_irq(dev, 0);
3773 setup[setup_count].scsiid = 7;
3774 setup[setup_count].reconnect = 1;
3775 setup[setup_count].parity = 1;
3776 setup[setup_count].synchronous = 1;
3777 setup[setup_count].delay = DELAY_DEFAULT;
3778 setup[setup_count].ext_trans = 0;
3779#if defined(AHA152X_DEBUG)
3780 setup[setup_count].debug = DEBUG_DEFAULT;
3781#endif
3782#if defined(__ISAPNP__)
3783 pnpdev[setup_count] = dev;
3784#endif
3785 printk (KERN_INFO
3786 "aha152x: found ISAPnP adapter at io=0x%03x, irq=%d\n",
3787 setup[setup_count].io_port, setup[setup_count].irq);
3788 setup_count++;
3789 }
3790 }
3791#endif
3792
3793#if defined(AUTOCONF)
3794 if (setup_count<ARRAY_SIZE(setup)) {
3795#if !defined(SKIP_BIOSTEST)
3796 ok = 0;
3797 for (i = 0; i < ARRAY_SIZE(addresses) && !ok; i++) {
3798 void __iomem *p = ioremap(addresses[i], 0x4000);
3799 if (!p)
3800 continue;
3801 for (j = 0; j<ARRAY_SIZE(signatures) && !ok; j++)
3802 ok = check_signature(p + signatures[j].sig_offset,
3803 signatures[j].signature, signatures[j].sig_length);
3804 iounmap(p);
3805 }
3806 if (!ok && setup_count == 0)
3807 return -ENODEV;
3808
3809 printk(KERN_INFO "aha152x: BIOS test: passed, ");
3810#else
3811 printk(KERN_INFO "aha152x: ");
3812#endif
3813
3814 ok = 0;
3815 for (i = 0; i < ARRAY_SIZE(ports) && setup_count < 2; i++) {
3816 if ((setup_count == 1) && (setup[0].io_port == ports[i]))
3817 continue;
3818
3819 if (!request_region(ports[i], IO_RANGE, "aha152x")) {
3820 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
3821 continue;
3822 }
3823
3824 if (aha152x_porttest(ports[i])) {
3825 setup[setup_count].tc1550 = 0;
3826
3827 conf.cf_port =
3828 (GETPORT(ports[i] + O_PORTA) << 8) + GETPORT(ports[i] + O_PORTB);
3829 } else if (tc1550_porttest(ports[i])) {
3830 setup[setup_count].tc1550 = 1;
3831
3832 conf.cf_port =
3833 (GETPORT(ports[i] + O_TC_PORTA) << 8) + GETPORT(ports[i] + O_TC_PORTB);
3834 } else {
3835 release_region(ports[i], IO_RANGE);
3836 continue;
3837 }
3838
3839 release_region(ports[i], IO_RANGE);
3840
3841 ok++;
3842 setup[setup_count].io_port = ports[i];
3843 setup[setup_count].irq = IRQ_MIN + conf.cf_irq;
3844 setup[setup_count].scsiid = conf.cf_id;
3845 setup[setup_count].reconnect = conf.cf_tardisc;
3846 setup[setup_count].parity = !conf.cf_parity;
3847 setup[setup_count].synchronous = conf.cf_syncneg;
3848 setup[setup_count].delay = DELAY_DEFAULT;
3849 setup[setup_count].ext_trans = 0;
3850#if defined(AHA152X_DEBUG)
3851 setup[setup_count].debug = DEBUG_DEFAULT;
3852#endif
3853 setup_count++;
3854
3855 }
3856
3857 if (ok)
3858 printk("auto configuration: ok, ");
3859 }
3860#endif
3861
3862 printk("%d controller(s) configured\n", setup_count);
3863
3864 for (i=0; i<setup_count; i++) {
3865 if ( request_region(setup[i].io_port, IO_RANGE, "aha152x") ) {
3866 struct Scsi_Host *shpnt = aha152x_probe_one(&setup[i]);
3867
3868 if( !shpnt ) {
3869 release_region(setup[i].io_port, IO_RANGE);
3870#if defined(__ISAPNP__)
3871 } else if( pnpdev[i] ) {
3872 HOSTDATA(shpnt)->pnpdev=pnpdev[i];
3873 pnpdev[i]=NULL;
3874#endif
3875 }
3876 } else {
3877 printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup[i].io_port);
3878 }
3879
3880#if defined(__ISAPNP__)
3881 if( pnpdev[i] )
3882 pnp_device_detach(pnpdev[i]);
3883#endif
3884 }
3885
3886 return 0;
3887}
3888
3889static void __exit aha152x_exit(void)
3890{
3891 struct aha152x_hostdata *hd, *tmp;
3892
3893 list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
3894 struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
3895
3896 aha152x_release(shost);
3897 }
3898}
3899
3900module_init(aha152x_init);
3901module_exit(aha152x_exit);
3902
3903#if !defined(MODULE)
3904static int __init aha152x_setup(char *str)
3905{
3906#if defined(AHA152X_DEBUG)
3907 int ints[11];
3908#else
3909 int ints[10];
3910#endif
3911 get_options(str, ARRAY_SIZE(ints), ints);
3912
3913 if(setup_count>=ARRAY_SIZE(setup)) {
3914 printk(KERN_ERR "aha152x: you can only configure up to two controllers\n");
3915 return 1;
3916 }
3917
3918 setup[setup_count].conf = str;
3919 setup[setup_count].io_port = ints[0] >= 1 ? ints[1] : 0x340;
3920 setup[setup_count].irq = ints[0] >= 2 ? ints[2] : 11;
3921 setup[setup_count].scsiid = ints[0] >= 3 ? ints[3] : 7;
3922 setup[setup_count].reconnect = ints[0] >= 4 ? ints[4] : 1;
3923 setup[setup_count].parity = ints[0] >= 5 ? ints[5] : 1;
3924 setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
3925 setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
3926 setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
3927#if defined(AHA152X_DEBUG)
3928 setup[setup_count].debug = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
3929 if (ints[0] > 9) {
3930 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3931 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
3932#else
3933 if (ints[0] > 8) {
3934 printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
3935 "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
3936#endif
3937 } else {
3938 setup_count++;
3939 return 0;
3940 }
3941
3942 return 1;
3943}
3944__setup("aha152x=", aha152x_setup);
3945#endif
3946
3947#endif
3948
