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fdc.c (39312) fdc.c (40565)
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 1.122 1998/09/15 08:15:28 gibbs Exp $
46 * $Id: fd.c,v 1.123 1998/09/15 22:07:24 gibbs Exp $
47 *
48 */
49
50#include "ft.h"
51#if NFT < 1
52#undef NFDC
53#endif
54#include "fd.h"

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216static timeout_t fd_turnoff;
217static timeout_t fd_motor_on;
218static void fd_turnon(fdu_t);
219static void fdc_reset(fdc_p);
220static int fd_in(fdcu_t, int *);
221static void fdstart(fdcu_t);
222static timeout_t fd_iotimeout;
223static timeout_t fd_pseudointr;
47 *
48 */
49
50#include "ft.h"
51#if NFT < 1
52#undef NFDC
53#endif
54#include "fd.h"

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216static timeout_t fd_turnoff;
217static timeout_t fd_motor_on;
218static void fd_turnon(fdu_t);
219static void fdc_reset(fdc_p);
220static int fd_in(fdcu_t, int *);
221static void fdstart(fdcu_t);
222static timeout_t fd_iotimeout;
223static timeout_t fd_pseudointr;
224static ointhand2_t fdintr;
224static int fdstate(fdcu_t, fdc_p);
225static int retrier(fdcu_t);
226static int fdformat(dev_t, struct fd_formb *, struct proc *);
227
228static int enable_fifo(fdc_p fdc);
229
230static int fifo_threshold = 8; /* XXX: should be accessible via sysctl */
231

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535 struct isa_device *fdup;
536 int ic_type = 0;
537#ifdef DEVFS
538 int mynor;
539 int typemynor;
540 int typesize;
541#endif
542
225static int fdstate(fdcu_t, fdc_p);
226static int retrier(fdcu_t);
227static int fdformat(dev_t, struct fd_formb *, struct proc *);
228
229static int enable_fifo(fdc_p fdc);
230
231static int fifo_threshold = 8; /* XXX: should be accessible via sysctl */
232

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536 struct isa_device *fdup;
537 int ic_type = 0;
538#ifdef DEVFS
539 int mynor;
540 int typemynor;
541 int typesize;
542#endif
543
544 dev->id_ointr = fdintr;
543 fdc->fdcu = fdcu;
544 fdc->flags |= FDC_ATTACHED;
545 fdc->dmachan = dev->id_drq;
546 /* Acquire the DMA channel forever, The driver will do the rest */
547 isa_dma_acquire(fdc->dmachan);
548 isa_dmainit(fdc->dmachan, 128 << 3 /* XXX max secsize */);
549 fdc->state = DEVIDLE;
550 /* reset controller, turn motor off, clear fdout mirror reg */

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1270 splx(s);
1271}
1272
1273/***********************************************************************\
1274* fdintr *
1275* keep calling the state machine until it returns a 0 *
1276* ALWAYS called at SPLBIO *
1277\***********************************************************************/
545 fdc->fdcu = fdcu;
546 fdc->flags |= FDC_ATTACHED;
547 fdc->dmachan = dev->id_drq;
548 /* Acquire the DMA channel forever, The driver will do the rest */
549 isa_dma_acquire(fdc->dmachan);
550 isa_dmainit(fdc->dmachan, 128 << 3 /* XXX max secsize */);
551 fdc->state = DEVIDLE;
552 /* reset controller, turn motor off, clear fdout mirror reg */

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1272 splx(s);
1273}
1274
1275/***********************************************************************\
1276* fdintr *
1277* keep calling the state machine until it returns a 0 *
1278* ALWAYS called at SPLBIO *
1279\***********************************************************************/
1278void
1280static void
1279fdintr(fdcu_t fdcu)
1280{
1281 fdc_p fdc = fdc_data + fdcu;
1282#if NFT > 0
1283 fdu_t fdu = fdc->fdu;
1284
1285 if (fdc->flags & FDC_TAPE_BUSY)
1286 (ftintr(fdu));

--- 739 unchanged lines hidden --- 		1281fdintr(fdcu_t fdcu)
1282{
1283 fdc_p fdc = fdc_data + fdcu;
1284#if NFT > 0
1285 fdu_t fdu = fdc->fdu;
1286
1287 if (fdc->flags & FDC_TAPE_BUSY)
1288 (ftintr(fdu));

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