1 /* $NetBSD: joy_eap.c,v 1.2 2004/08/03 18:38:52 drochner Exp $ */ 2 3 #include <sys/param.h> 4 #include <sys/systm.h> 5 #include <sys/kernel.h> 6 #include <sys/device.h> 7 #include <sys/audioio.h> 8 #include <dev/audio_if.h> 9 #include <machine/bus.h> 10 11 #include <dev/pci/eapreg.h> 12 #include <dev/pci/eapvar.h> 13 #include <dev/ic/joyvar.h> 14 15 int joy_eap_match(struct device *, struct cfdata *, void *); 16 void joy_eap_attach(struct device *, struct device *, void *); 17 int joy_eap_detach(struct device *, int); 18 19 CFATTACH_DECL(joy_eap, sizeof (struct joy_softc), 20 joy_eap_match, joy_eap_attach, joy_eap_detach, NULL); 21 22 struct joy_eap_aa { 23 struct audio_attach_args aa_aaa; 24 bus_space_tag_t aa_iot; 25 bus_space_handle_t aa_ioh; 26 }; 27 28 struct device * 29 eap_joy_attach(struct device *eapdev, struct eap_gameport_args *gpa) 30 { 31 int i; 32 bus_space_handle_t ioh; 33 u_int32_t icsc; 34 struct joy_eap_aa aa; 35 struct device *joydev; 36 37 /* 38 * There are 4 possible locations. Just try to map one of them. 39 * XXX This is questionable for 2 reasons: 40 * - We don't know whether these addresses are usable on our 41 * PCI bus (might be a secondary one). 42 * - PCI probing is early. ISA devices might conflict. 43 */ 44 for (i = 0; i < 4; i++) { 45 if (bus_space_map(gpa->gpa_iot, 0x200 + i * 8, 1, 46 0, &ioh) == 0) 47 break; 48 } 49 if (i == 4) 50 return (0); 51 52 printf("%s: enabling gameport at legacy io port 0x%x\n", 53 eapdev->dv_xname, 0x200 + i * 8); 54 55 /* enable gameport on eap */ 56 icsc = bus_space_read_4(gpa->gpa_iot, gpa->gpa_ioh, EAP_ICSC); 57 icsc &= ~E1371_JOY_ASELBITS; 58 icsc |= EAP_JYSTK_EN | E1371_JOY_ASEL(i); 59 bus_space_write_4(gpa->gpa_iot, gpa->gpa_ioh, EAP_ICSC, icsc); 60 61 aa.aa_aaa.type = AUDIODEV_TYPE_AUX; 62 aa.aa_iot = gpa->gpa_iot; 63 aa.aa_ioh = ioh; 64 joydev = config_found(eapdev, &aa, 0); 65 /* this cannot fail */ 66 KASSERT(joydev != NULL); 67 68 return (joydev); 69 } 70 71 int 72 eap_joy_detach(struct device *joydev, struct eap_gameport_args *gpa) 73 { 74 int res; 75 struct joy_softc *sc = (struct joy_softc *)joydev; 76 u_int32_t icsc; 77 78 res = config_detach(joydev, 0); 79 if (res) 80 return (res); 81 82 /* disable gameport on eap */ 83 icsc = bus_space_read_4(gpa->gpa_iot, gpa->gpa_ioh, EAP_ICSC); 84 icsc &= ~EAP_JYSTK_EN; 85 bus_space_write_4(gpa->gpa_iot, gpa->gpa_ioh, EAP_ICSC, icsc); 86 87 bus_space_unmap(sc->sc_iot, sc->sc_ioh, 1); 88 return (0); 89 } 90 91 int 92 joy_eap_match(struct device *parent, struct cfdata *match, void *aux) 93 { 94 struct joy_eap_aa *eaa = aux; 95 96 if (eaa->aa_aaa.type != AUDIODEV_TYPE_AUX) 97 return (0); 98 return (1); 99 } 100 101 void 102 joy_eap_attach(struct device *parent, struct device *self, void *aux) 103 { 104 struct joy_softc *sc = (struct joy_softc *)self; 105 struct joy_eap_aa *eaa = aux; 106 107 printf("\n"); 108 109 sc->sc_iot = eaa->aa_iot; 110 sc->sc_ioh = eaa->aa_ioh; 111 112 joyattach(sc); 113 } 114 115 int 116 joy_eap_detach(struct device *self, int flags) 117 { 118 119 return (joydetach((struct joy_softc *)self, flags)); 120 } 121