fdc.c (f71d35e4022cb9949a2afd8fdefe913c9a810361) fdc.c (d2fb48929a4984996e65d084adcaf39f1820fb24)
1/*
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Don Ahn.
7 *
8 * Copyright (c) 1993, 1994 by

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38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * SUCH DAMAGE.
44 *
45 * from: @(#)fd.c 7.4 (Berkeley) 5/25/91
1/*
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Don Ahn.
7 *
8 * Copyright (c) 1993, 1994 by

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38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * SUCH DAMAGE.
44 *
45 * from: @(#)fd.c 7.4 (Berkeley) 5/25/91
46 * $Id: fd.c,v 1.99 1997/03/24 11:23:43 bde Exp $
46 * $Id: fd.c,v 1.100 1997/07/20 14:09:54 bde Exp $
47 *
48 */
49
50#include "ft.h"
51#if NFT < 1
52#undef NFDC
53#endif
54#include "fd.h"
47 *
48 */
49
50#include "ft.h"
51#if NFT < 1
52#undef NFDC
53#endif
54#include "fd.h"
55#include "opt_fdc.h"
55
56#if NFDC > 0
57
58#include <sys/param.h>
59#include <sys/systm.h>
60#include <sys/kernel.h>
61#include <sys/conf.h>
62#include <sys/fcntl.h>

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228#define RECALCOMPLETE 5
229#define STARTRECAL 6
230#define RESETCTLR 7
231#define SEEKWAIT 8
232#define RECALWAIT 9
233#define MOTORWAIT 10
234#define IOTIMEDOUT 11
235
56
57#if NFDC > 0
58
59#include <sys/param.h>
60#include <sys/systm.h>
61#include <sys/kernel.h>
62#include <sys/conf.h>
63#include <sys/fcntl.h>

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229#define RECALCOMPLETE 5
230#define STARTRECAL 6
231#define RESETCTLR 7
232#define SEEKWAIT 8
233#define RECALWAIT 9
234#define MOTORWAIT 10
235#define IOTIMEDOUT 11
236
236#ifdef DEBUG
237#ifdef FDC_DEBUG
237static char const * const fdstates[] =
238{
239"DEVIDLE",
240"FINDWORK",
241"DOSEEK",
242"SEEKCOMPLETE",
243"IOCOMPLETE",
244"RECALCOMPLETE",

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249"MOTORWAIT",
250"IOTIMEDOUT"
251};
252
253/* CAUTION: fd_debug causes huge amounts of logging output */
254static int volatile fd_debug = 0;
255#define TRACE0(arg) if(fd_debug) printf(arg)
256#define TRACE1(arg1, arg2) if(fd_debug) printf(arg1, arg2)
238static char const * const fdstates[] =
239{
240"DEVIDLE",
241"FINDWORK",
242"DOSEEK",
243"SEEKCOMPLETE",
244"IOCOMPLETE",
245"RECALCOMPLETE",

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250"MOTORWAIT",
251"IOTIMEDOUT"
252};
253
254/* CAUTION: fd_debug causes huge amounts of logging output */
255static int volatile fd_debug = 0;
256#define TRACE0(arg) if(fd_debug) printf(arg)
257#define TRACE1(arg1, arg2) if(fd_debug) printf(arg1, arg2)
257#else /* DEBUG */
258#else /* FDC_DEBUG */
258#define TRACE0(arg)
259#define TRACE1(arg1, arg2)
259#define TRACE0(arg)
260#define TRACE1(arg1, arg2)
260#endif /* DEBUG */
261#endif /* FDC_DEBUG */
261
262/* autoconfig structure */
263
264struct isa_driver fdcdriver = {
265 fdprobe, fdattach, "fdc",
266};
267
268static d_open_t Fdopen; /* NOTE, not fdopen */

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536
537 /* select it */
538 set_motor(fdcu, fdsu, TURNON);
539 DELAY(1000000); /* 1 sec */
540
541 if (ic_type == 0 &&
542 fd_cmd(fdcu, 1, NE7CMD_VERSION, 1, &ic_type) == 0)
543 {
262
263/* autoconfig structure */
264
265struct isa_driver fdcdriver = {
266 fdprobe, fdattach, "fdc",
267};
268
269static d_open_t Fdopen; /* NOTE, not fdopen */

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537
538 /* select it */
539 set_motor(fdcu, fdsu, TURNON);
540 DELAY(1000000); /* 1 sec */
541
542 if (ic_type == 0 &&
543 fd_cmd(fdcu, 1, NE7CMD_VERSION, 1, &ic_type) == 0)
544 {
545#ifdef FDC_PRINT_BOGUS_CHIPTYPE
544 printf("fdc%d: ", fdcu);
546 printf("fdc%d: ", fdcu);
547#endif
545 ic_type = (u_char)ic_type;
546 switch( ic_type ) {
547 case 0x80:
548 ic_type = (u_char)ic_type;
549 switch( ic_type ) {
550 case 0x80:
551#ifdef FDC_PRINT_BOGUS_CHIPTYPE
548 printf("NEC 765\n");
552 printf("NEC 765\n");
553#endif
549 fdc->fdct = FDC_NE765;
550 break;
551 case 0x81:
554 fdc->fdct = FDC_NE765;
555 break;
556 case 0x81:
557#ifdef FDC_PRINT_BOGUS_CHIPTYPE
552 printf("Intel 82077\n");
558 printf("Intel 82077\n");
559#endif
553 fdc->fdct = FDC_I82077;
554 break;
555 case 0x90:
560 fdc->fdct = FDC_I82077;
561 break;
562 case 0x90:
563#ifdef FDC_PRINT_BOGUS_CHIPTYPE
556 printf("NEC 72065B\n");
564 printf("NEC 72065B\n");
565#endif
557 fdc->fdct = FDC_NE72065;
558 break;
559 default:
566 fdc->fdct = FDC_NE72065;
567 break;
568 default:
569#ifdef FDC_PRINT_BOGUS_CHIPTYPE
560 printf("unknown IC type %02x\n", ic_type);
570 printf("unknown IC type %02x\n", ic_type);
571#endif
561 fdc->fdct = FDC_UNKNOWN;
562 break;
563 }
564 }
565 if ((fd_cmd(fdcu, 2, NE7CMD_SENSED, fdsu, 1, &st3) == 0) &&
566 (st3 & NE7_ST3_T0)) {
567 /* if at track 0, first seek inwards */
568 /* seek some steps: */

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848 int baseport = fdc_data[fdcu].baseport;
849 int i, j = 100000;
850 while ((i = inb(baseport+FDSTS) & (NE7_DIO|NE7_RQM))
851 != (NE7_DIO|NE7_RQM) && j-- > 0)
852 if (i == NE7_RQM)
853 return fdc_err(fdcu, "ready for output in input\n");
854 if (j <= 0)
855 return fdc_err(fdcu, bootverbose? "input ready timeout\n": 0);
572 fdc->fdct = FDC_UNKNOWN;
573 break;
574 }
575 }
576 if ((fd_cmd(fdcu, 2, NE7CMD_SENSED, fdsu, 1, &st3) == 0) &&
577 (st3 & NE7_ST3_T0)) {
578 /* if at track 0, first seek inwards */
579 /* seek some steps: */

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859 int baseport = fdc_data[fdcu].baseport;
860 int i, j = 100000;
861 while ((i = inb(baseport+FDSTS) & (NE7_DIO|NE7_RQM))
862 != (NE7_DIO|NE7_RQM) && j-- > 0)
863 if (i == NE7_RQM)
864 return fdc_err(fdcu, "ready for output in input\n");
865 if (j <= 0)
866 return fdc_err(fdcu, bootverbose? "input ready timeout\n": 0);
856#ifdef DEBUG
867#ifdef FDC_DEBUG
857 i = inb(baseport+FDDATA);
858 TRACE1("[FDDATA->0x%x]", (unsigned char)i);
859 return(i);
868 i = inb(baseport+FDDATA);
869 TRACE1("[FDDATA->0x%x]", (unsigned char)i);
870 return(i);
860#else
871#else /* !FDC_DEBUG */
861 return inb(baseport+FDDATA);
872 return inb(baseport+FDDATA);
862#endif
873#endif /* FDC_DEBUG */
863}
864
865/*
866 * fd_in: Like in_fdc, but allows you to see if it worked.
867 */
868static int
869fd_in(fdcu_t fdcu, int *ptr)
870{
871 int baseport = fdc_data[fdcu].baseport;
872 int i, j = 100000;
873 while ((i = inb(baseport+FDSTS) & (NE7_DIO|NE7_RQM))
874 != (NE7_DIO|NE7_RQM) && j-- > 0)
875 if (i == NE7_RQM)
876 return fdc_err(fdcu, "ready for output in input\n");
877 if (j <= 0)
878 return fdc_err(fdcu, bootverbose? "input ready timeout\n": 0);
874}
875
876/*
877 * fd_in: Like in_fdc, but allows you to see if it worked.
878 */
879static int
880fd_in(fdcu_t fdcu, int *ptr)
881{
882 int baseport = fdc_data[fdcu].baseport;
883 int i, j = 100000;
884 while ((i = inb(baseport+FDSTS) & (NE7_DIO|NE7_RQM))
885 != (NE7_DIO|NE7_RQM) && j-- > 0)
886 if (i == NE7_RQM)
887 return fdc_err(fdcu, "ready for output in input\n");
888 if (j <= 0)
889 return fdc_err(fdcu, bootverbose? "input ready timeout\n": 0);
879#ifdef DEBUG
890#ifdef FDC_DEBUG
880 i = inb(baseport+FDDATA);
881 TRACE1("[FDDATA->0x%x]", (unsigned char)i);
882 *ptr = i;
883 return 0;
891 i = inb(baseport+FDDATA);
892 TRACE1("[FDDATA->0x%x]", (unsigned char)i);
893 *ptr = i;
894 return 0;
884#else
895#else /* !FDC_DEBUG */
885 i = inb(baseport+FDDATA);
886 if (ptr)
887 *ptr = i;
888 return 0;
896 i = inb(baseport+FDDATA);
897 if (ptr)
898 *ptr = i;
899 return 0;
889#endif
900#endif /* FDC_DEBUG */
890}
891
892int
893out_fdc(fdcu_t fdcu, int x)
894{
895 int baseport = fdc_data[fdcu].baseport;
896 int i;
897

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902
903int
904out_fdc(fdcu_t fdcu, int x)
905{
906 int baseport = fdc_data[fdcu].baseport;
907 int i;
908

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