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mpu_isapnp.c revision 1.18 
      1 /*	$NetBSD: mpu_isapnp.c,v 1.18 2011/11/23 23:07:33 jmcneill Exp $	*/
      2 
      3 #include <sys/cdefs.h>
      4 __KERNEL_RCSID(0, "$NetBSD: mpu_isapnp.c,v 1.18 2011/11/23 23:07:33 jmcneill Exp $");
      5 
      6 #include "midi.h"
      7 
      8 #include <sys/param.h>
      9 #include <sys/systm.h>
     10 #include <sys/errno.h>
     11 #include <sys/ioctl.h>
     12 #include <sys/syslog.h>
     13 #include <sys/device.h>
     14 #include <sys/proc.h>
     15 #include <sys/bus.h>
     16 #include <sys/audioio.h>
     17 
     18 #include <dev/audio_if.h>
     19 #include <dev/midi_if.h>
     20 #include <dev/mulaw.h>
     21 
     22 #include <dev/isa/isavar.h>
     23 #include <dev/isa/isadmavar.h>
     24 
     25 #include <dev/isapnp/isapnpreg.h>
     26 #include <dev/isapnp/isapnpvar.h>
     27 #include <dev/isapnp/isapnpdevs.h>
     28 
     29 #include <dev/ic/mpuvar.h>
     30 
     31 static int	mpu_isapnp_match(device_t, cfdata_t, void *);
     32 static void	mpu_isapnp_attach(device_t, device_t, void *);
     33 
     34 struct mpu_isapnp_softc {
     35 	void *sc_ih;
     36 	kmutex_t sc_lock;
     37 
     38 	struct mpu_softc sc_mpu;
     39 };
     40 
     41 CFATTACH_DECL_NEW(mpu_isapnp, sizeof(struct mpu_isapnp_softc),
     42     mpu_isapnp_match, mpu_isapnp_attach, NULL, NULL);
     43 
     44 static int
     45 mpu_isapnp_match(device_t parent, cfdata_t match, void *aux)
     46 {
     47 	int pri, variant;
     48 
     49 	pri = isapnp_devmatch(aux, &isapnp_mpu_devinfo, &variant);
     50 	if (pri && variant > 0)
     51 		pri = 0;
     52 	return pri;
     53 }
     54 
     55 static void
     56 mpu_isapnp_attach(device_t parent, device_t self, void *aux)
     57 {
     58 	struct mpu_isapnp_softc *sc = device_private(self);
     59 	struct isapnp_attach_args *ipa = aux;
     60 
     61 	aprint_normal("\n");
     62 
     63 	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
     64 		aprint_error_dev(self, "error in region allocation\n");
     65 		return;
     66 	}
     67 
     68 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SCHED);
     69 
     70 	sc->sc_mpu.iot = ipa->ipa_iot;
     71 	sc->sc_mpu.ioh = ipa->ipa_io[0].h;
     72 	sc->sc_mpu.lock = &sc->sc_lock;
     73 
     74 	if (!mpu_find(&sc->sc_mpu)) {
     75 		aprint_error_dev(self, "find failed\n");
     76 		mutex_destroy(&sc->sc_lock);
     77 		return;
     78 	}
     79 
     80 	aprint_normal_dev(self, "%s %s\n", ipa->ipa_devident,
     81 	       ipa->ipa_devclass);
     82 
     83 	sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
     84 
     85 	midi_attach_mi(&mpu_midi_hw_if, &sc->sc_mpu, self);
     86 
     87 	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
     88 	    ipa->ipa_irq[0].type, IPL_SCHED, mpu_intr, &sc->sc_mpu);
     89 }
     90