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      1 /*	$NetBSD: mpu_isapnp.c,v 1.21 2019/05/08 13:40:18 isaki Exp $	*/
      2 
      3 #include <sys/cdefs.h>
      4 __KERNEL_RCSID(0, "$NetBSD: mpu_isapnp.c,v 1.21 2019/05/08 13:40:18 isaki 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/audio_if.h>
     19 #include <dev/midi_if.h>
     20 
     21 #include <dev/isa/isavar.h>
     22 #include <dev/isa/isadmavar.h>
     23 
     24 #include <dev/isapnp/isapnpreg.h>
     25 #include <dev/isapnp/isapnpvar.h>
     26 #include <dev/isapnp/isapnpdevs.h>
     27 
     28 #include <dev/ic/mpuvar.h>
     29 
     30 static int	mpu_isapnp_match(device_t, cfdata_t, void *);
     31 static void	mpu_isapnp_attach(device_t, device_t, void *);
     32 
     33 struct mpu_isapnp_softc {
     34 	void *sc_ih;
     35 	kmutex_t sc_lock;
     36 
     37 	struct mpu_softc sc_mpu;
     38 };
     39 
     40 CFATTACH_DECL_NEW(mpu_isapnp, sizeof(struct mpu_isapnp_softc),
     41     mpu_isapnp_match, mpu_isapnp_attach, NULL, NULL);
     42 
     43 static int
     44 mpu_isapnp_match(device_t parent, cfdata_t match, void *aux)
     45 {
     46 	int pri, variant;
     47 
     48 	pri = isapnp_devmatch(aux, &isapnp_mpu_devinfo, &variant);
     49 	if (pri && variant > 0)
     50 		pri = 0;
     51 	return pri;
     52 }
     53 
     54 static void
     55 mpu_isapnp_attach(device_t parent, device_t self, void *aux)
     56 {
     57 	struct mpu_isapnp_softc *sc = device_private(self);
     58 	struct isapnp_attach_args *ipa = aux;
     59 
     60 	aprint_normal("\n");
     61 
     62 	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
     63 		aprint_error_dev(self, "error in region allocation\n");
     64 		return;
     65 	}
     66 
     67 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_AUDIO);
     68 
     69 	sc->sc_mpu.iot = ipa->ipa_iot;
     70 	sc->sc_mpu.ioh = ipa->ipa_io[0].h;
     71 	sc->sc_mpu.lock = &sc->sc_lock;
     72 
     73 	mutex_enter(&sc->sc_lock);
     74 
     75 	if (!mpu_find(&sc->sc_mpu)) {
     76 		aprint_error_dev(self, "find failed\n");
     77 		mutex_exit(&sc->sc_lock);
     78 		mutex_destroy(&sc->sc_lock);
     79 		return;
     80 	}
     81 
     82 	mutex_exit(&sc->sc_lock);
     83 
     84 	aprint_normal_dev(self, "%s %s\n", ipa->ipa_devident,
     85 	       ipa->ipa_devclass);
     86 
     87 	sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
     88 
     89 	midi_attach_mi(&mpu_midi_hw_if, &sc->sc_mpu, self);
     90 
     91 	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
     92 	    ipa->ipa_irq[0].type, IPL_AUDIO, mpu_intr, &sc->sc_mpu);
     93 }
     94