| neomagic.c (55700) | neomagic.c (55713) |
|---|---|
| 1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * All rights reserved. 4 * 5 * Derived from the public domain Linux driver 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF 26 * SUCH DAMAGE. 27 * | 1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * All rights reserved. 4 * 5 * Derived from the public domain Linux driver 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 11 unchanged lines hidden (view full) --- 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF 26 * SUCH DAMAGE. 27 * |
| 28 * $FreeBSD: head/sys/dev/sound/pci/neomagic.c 55700 2000-01-10 01:59:12Z cg $ | 28 * $FreeBSD: head/sys/dev/sound/pci/neomagic.c 55713 2000-01-10 06:19:20Z cg $ |
| 29 */ 30 31#include "pci.h" 32#include "pcm.h" 33 34#include <dev/sound/pcm/sound.h> 35#include <dev/sound/pcm/ac97.h> 36#include <dev/sound/pci/neomagic.h> --- 386 unchanged lines hidden (view full) --- 423 return &nm_caps; 424} 425 426/* The interrupt handler */ 427static void 428nm_intr(void *p) 429{ 430 struct sc_info *sc = (struct sc_info *)p; | 29 */ 30 31#include "pci.h" 32#include "pcm.h" 33 34#include <dev/sound/pcm/sound.h> 35#include <dev/sound/pcm/ac97.h> 36#include <dev/sound/pci/neomagic.h> --- 386 unchanged lines hidden (view full) --- 423 return &nm_caps; 424} 425 426/* The interrupt handler */ 427static void 428nm_intr(void *p) 429{ 430 struct sc_info *sc = (struct sc_info *)p; |
| 431 int status, x; | 431 int status, x, active; |
| 432 | 432 |
| 433 active = (sc->pch.channel->buffer.dl || sc->rch.channel->buffer.dl); |
|
| 433 status = nm_rd(sc, NM_INT_REG, sc->irsz); | 434 status = nm_rd(sc, NM_INT_REG, sc->irsz); |
| 434 if (status == 0) { | 435 if (status == 0 && active) { |
| 435 if (sc->badintr++ > 1000) { 436 device_printf(sc->dev, "1000 bad intrs\n"); 437 sc->badintr = 0; 438 } 439 return; 440 } 441 sc->badintr = 0; 442 --- 58 unchanged lines hidden (view full) --- 501 502 sc->buftop = (nm_rd(sc, 0xa0b, 2)? 6144 : 4096) * 1024; 503 504 sc->irsz = 4; 505 sc->playint = NM2_PLAYBACK_INT; 506 sc->recint = NM2_RECORD_INT; 507 sc->misc1int = NM2_MISC_INT_1; 508 sc->misc2int = NM2_MISC_INT_2; | 436 if (sc->badintr++ > 1000) { 437 device_printf(sc->dev, "1000 bad intrs\n"); 438 sc->badintr = 0; 439 } 440 return; 441 } 442 sc->badintr = 0; 443 --- 58 unchanged lines hidden (view full) --- 502 503 sc->buftop = (nm_rd(sc, 0xa0b, 2)? 6144 : 4096) * 1024; 504 505 sc->irsz = 4; 506 sc->playint = NM2_PLAYBACK_INT; 507 sc->recint = NM2_RECORD_INT; 508 sc->misc1int = NM2_MISC_INT_1; 509 sc->misc2int = NM2_MISC_INT_2; |
| 509 } | 510 } else return -1; |
| 510 sc->badintr = 0; 511 ofs = sc->buftop - 0x0400; 512 sc->buftop -= 0x1400; 513 514 if ((nm_rdbuf(sc, ofs, 4) & NM_SIG_MASK) == NM_SIGNATURE) { 515 i = nm_rdbuf(sc, ofs + 4, 4); 516 if (i != 0 && i != 0xffffffff) 517 sc->buftop = i; --- 124 unchanged lines hidden --- | 511 sc->badintr = 0; 512 ofs = sc->buftop - 0x0400; 513 sc->buftop -= 0x1400; 514 515 if ((nm_rdbuf(sc, ofs, 4) & NM_SIG_MASK) == NM_SIGNATURE) { 516 i = nm_rdbuf(sc, ofs + 4, 4); 517 if (i != 0 && i != 0xffffffff) 518 sc->buftop = i; --- 124 unchanged lines hidden --- |