| blob | 890d44426f7d4eb917702f8c7c9188e2cf5a0887 |
1 /* $Id: atp870u.c,v 1.0 1997/05/07 15:22:00 root Exp root $
2 * linux/kernel/atp870u.c
3 *
4 * Copyright (C) 1997 Wu Ching Chen
5 * 2.1.x update (C) 1998 Krzysztof G. Baranowski
6 *
7 * Marcelo Tosatti <marcelo@conectiva.com.br> : SMP fixes
8 *
9 * Wu Ching Chen : NULL pointer fixes 2000/06/02
10 * support atp876 chip
11 * enable 32 bit fifo transfer
12 * support cdrom & remove device run ultra speed
13 */
15 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/types.h>
19 #include <linux/string.h>
20 #include <linux/ioport.h>
21 #include <linux/delay.h>
22 #include <linux/sched.h>
23 #include <linux/proc_fs.h>
24 #include <linux/spinlock.h>
25 #include <asm/system.h>
26 #include <asm/io.h>
27 #include <linux/pci.h>
28 #include <linux/blk.h>
35 #include<linux/stat.h>
39 /*
40 * static const char RCSid[] = "$Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/atp870u.c,v 1.0 1997/05/07 15:22:00 root Exp root $";
41 */
48 struct atp_unit
49 {
68 struct atp_id
69 {
80 };
86 {
100 }
101 }
103 irq_numok:
109 {
113 {
116 }
120 {
123 {
125 {
127 }
129 {
131 }
132 }
133 }
134 stop_dma:
141 {
143 {
145 }
146 }
153 /*
154 * Remap wide devices onto id numbers
155 */
161 }
164 {
165 /*
166 * Flip wide
167 */
169 {
173 {
175 }
176 }
177 /*
178 * Issue more commands
179 */
182 {
184 }
185 /*
186 * Done
187 */
190 }
192 {
208 }
210 {
219 {
233 }
234 else
235 {
246 }
247 }
252 /*
253 * Remap wide identifiers
254 */
256 {
260 }
271 /* Remap wide */
275 }
276 /* Add direction */
281 /* enable 32 bit fifo transfer */
285 {
287 }
288 else
289 {
291 }
297 /*
298 * Is this a wide device
299 */
302 }
305 {
307 }
314 }
317 {
323 }
336 }
337 }
338 }
346 /*
347 * Check transfer direction
348 */
354 }
359 }
361 /*
362 * Current scsi request on this target
363 */
371 }
373 {
378 go_42:
379 /*
380 * Complete the command
381 */
386 /*
387 * Clear it off the queue
388 */
391 /*
392 * Take it back wide
393 */
398 {
400 }
401 }
402 /*
403 * If there is stuff to send and nothing going then send it
404 */
407 {
409 }
412 }
415 }
432 }
450 }
456 }
467 // tmport = workportu + 0x17;
468 // inb(tmport);
469 // dev->working = 0;
472 }
473 }
476 {
486 }
487 }
489 host_ok:
494 }
499 /*
500 * Fake a timeout for missing targets
501 */
507 }
515 }
516 /*
517 * Count new command
518 */
522 }
523 /*
524 * Check queue state
525 */
526 wait_que_empty:
529 }
537 }
542 }
544 }
547 {
551 }
552 }
555 {
573 }
579 {
581 }
584 {
588 }
589 }
595 }
601 }
607 cmd_subp:
612 }
616 }
617 abortsnd:
622 oktosend:
627 }
628 }
631 }
632 /*
633 * Why limit this ????
634 */
639 }
640 }
646 /*
647 * Wide ?
648 */
653 }
656 {
658 }
660 /*
661 * Write the command
662 */
670 }
674 /*
675 * Write the target
676 */
679 /*
680 * Figure out the transfer size
681 */
683 {
687 {
689 {
691 }
693 }
696 }
697 /*
698 * Write transfer size
699 */
706 /*
707 * Flip the wide bits
708 */
711 }
712 /*
713 * Check transfer direction
714 */
720 }
731 }
735 }
740 /*
741 * Now write the request list. Either as scatter/gather or as
742 * a linear chain.
743 */
746 {
754 }
757 /*
758 * For a linear request write a chain of blocks
759 */
770 }
774 }
786 {
788 }
789 else
790 {
792 }
797 {
805 }
809 }
811 {
817 }
822 }
825 {
827 }
830 {
838 }
841 {
848 FUN_D7:
854 }
855 }
860 FUN_D5:
864 }
865 }
871 FUN_D6:
875 }
876 }
879 }
882 {
892 };
897 }
907 }
914 }
930 }
941 }
948 }
949 wait_rdyok:
960 }
964 }
967 }
989 wait_nomsg:
992 }
998 }
999 }
1001 wait_io:
1005 }
1006 }
1008 wait_io1:
1016 TCM_SYNC:
1030 }
1041 TCM_ID:
1044 }
1051 }
1056 }
1057 i--;
1060 }
1061 j++;
1066 /* mbuf[32]=0;
1067 printk(" \n%x %x %x %s\n ",assignid_map,mbuf[0],mbuf[1],&mbuf[2]); */
1072 }
1075 }
1077 small_id:
1082 }
1084 k--;
1086 }
1089 G2Q_LP:
1094 }
1096 k--;
1098 }
1105 }
1120 }
1123 {
1143 }
1148 }
1152 }
1156 }
1157 else
1158 {
1160 }
1180 }
1190 }
1199 phase_cmd:
1210 }
1211 sel_ok:
1233 }
1238 }
1243 rd_inq_data:
1250 }
1253 }
1258 }
1272 }
1273 inq_ok:
1281 }
1284 }
1287 }
1312 }
1314 try_wide:
1327 }
1328 }
1334 }
1337 }
1340 }
1342 widep_out:
1351 }
1352 }
1357 }
1360 }
1363 }
1365 widep_in:
1372 widep_in1:
1379 }
1382 }
1387 }
1390 }
1393 }
1395 widep_cmd:
1409 }
1411 }
1414 }
1417 }
1420 }
1423 }
1427 not_wide:
1430 {
1432 }
1434 set_sync:
1439 }
1463 }
1465 try_sync:
1483 }
1484 }
1486 }
1487 }
1493 }
1496 }
1499 }
1501 phase_outs:
1510 }
1511 }
1516 }
1520 }
1523 }
1526 }
1528 phase_ins:
1535 phase_ins1:
1542 }
1545 }
1551 }
1555 }
1558 }
1561 }
1563 phase_cmds:
1566 tar_dcons:
1577 }
1580 }
1583 }
1586 }
1589 }
1592 }
1597 }
1601 }
1605 }
1609 }
1611 set_syn_ok:
1613 }
1616 }
1618 /* return non-zero on detection */
1620 {
1633 };
1639 }
1645 {
1650 }
1664 }
1667 }
1668 }
1673 h++;
1676 }
1683 }
1684 }
1687 }
1690 tmpcnt++;
1691 nxt_devfn:
1692 index++;
1695 h++;
1696 }
1699 }
1704 }
1706 /* Found an atp870u/w. */
1714 {
1716 }
1735 }
1745 }
1751 }
1778 tmport++;
1784 }
1792 count++;
1793 index++;
1795 unregister:
1798 index++;
1800 }
1803 }
1805 /* The abort command does not leave the device in a clean state where
1806 it is available to be used again. Until this gets worked out, we will
1807 leave it commented out. */
1810 {
1817 }
1818 }
1820 find_adp:
1827 }
1832 tmport++;
1839 }
1842 {
1844 /*
1845 * See if a bus reset was suggested.
1846 */
1850 }
1851 }
1853 find_host:
1854 /* SCpnt->result = 0x00080000;
1855 SCpnt->scsi_done(SCpnt);
1856 dev->working=0;
1857 dev->quhdu=0;
1858 dev->quendu=0;
1859 return (SCSI_RESET_SUCCESS | SCSI_RESET_BUS_RESET); */
1861 }
1864 {
1870 }
1873 {
1875 }
1877 #define BLS buffer + len + size
1880 {
1894 }
1896 }
1897 }
1905 }
1908 }
1911 }
1925 stop_output:
1930 }
1932 }
1937 {
1948 }
1954 }
1958 {
1961 {
1970 }
1971 }
1974 }