1 /* $OpenBSD: ehci_acpi.c,v 1.3 2022/06/28 08:15:04 kettenis Exp $ */ 2 /* 3 * Copyright (c) 2018 Mark Kettenis 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <sys/param.h> 19 #include <sys/systm.h> 20 #include <sys/device.h> 21 22 #include <machine/bus.h> 23 #include <machine/intr.h> 24 25 #include <dev/acpi/acpireg.h> 26 #include <dev/acpi/acpivar.h> 27 #include <dev/acpi/acpidev.h> 28 #include <dev/acpi/amltypes.h> 29 #include <dev/acpi/dsdt.h> 30 31 #include <dev/usb/usb.h> 32 #include <dev/usb/usbdi.h> 33 #include <dev/usb/usbdivar.h> 34 #include <dev/usb/usb_mem.h> 35 36 #include <dev/usb/ehcireg.h> 37 #include <dev/usb/ehcivar.h> 38 39 struct ehci_acpi_softc { 40 struct ehci_softc sc; 41 struct acpi_softc *sc_acpi; 42 struct aml_node *sc_node; 43 void *sc_ih; 44 }; 45 46 int ehci_acpi_match(struct device *, void *, void *); 47 void ehci_acpi_attach(struct device *, struct device *, void *); 48 49 const struct cfattach ehci_acpi_ca = { 50 sizeof(struct ehci_acpi_softc), ehci_acpi_match, ehci_acpi_attach 51 }; 52 53 const char *ehci_hids[] = { 54 "PNP0D20", 55 "PNP0D25", 56 NULL 57 }; 58 59 int 60 ehci_acpi_match(struct device *parent, void *match, void *aux) 61 { 62 struct acpi_attach_args *aaa = aux; 63 struct cfdata *cf = match; 64 65 if (aaa->aaa_naddr < 1 || aaa->aaa_nirq < 1) 66 return 0; 67 return acpi_matchhids(aaa, ehci_hids, cf->cf_driver->cd_name); 68 } 69 70 void 71 ehci_acpi_attach(struct device *parent, struct device *self, void *aux) 72 { 73 struct ehci_acpi_softc *sc = (struct ehci_acpi_softc *)self; 74 struct acpi_attach_args *aaa = aux; 75 int error; 76 77 sc->sc_acpi = (struct acpi_softc *)parent; 78 sc->sc_node = aaa->aaa_node; 79 printf(" %s", sc->sc_node->name); 80 81 printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]); 82 printf(" irq %d", aaa->aaa_irq[0]); 83 84 sc->sc.iot = aaa->aaa_bst[0]; 85 sc->sc.sc_size = aaa->aaa_size[0]; 86 sc->sc.sc_bus.dmatag = aaa->aaa_dmat; 87 88 if (bus_space_map(sc->sc.iot, aaa->aaa_addr[0], aaa->aaa_size[0], 89 0, &sc->sc.ioh)) { 90 printf(": can't map registers\n"); 91 return; 92 } 93 94 /* Disable interrupts, so we don't get any spurious ones. */ 95 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 96 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 97 98 sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0], 99 IPL_USB, ehci_intr, sc, sc->sc.sc_bus.bdev.dv_xname); 100 if (sc->sc_ih == NULL) { 101 printf(": can't establish interrupt\n"); 102 goto unmap; 103 } 104 105 printf("\n"); 106 107 strlcpy(sc->sc.sc_vendor, "Generic", sizeof(sc->sc.sc_vendor)); 108 error = ehci_init(&sc->sc); 109 if (error) { 110 printf("%s: init failed, error=%d\n", 111 sc->sc.sc_bus.bdev.dv_xname, error); 112 goto disestablish_ret; 113 } 114 115 /* Attach usb device. */ 116 config_found(self, &sc->sc.sc_bus, usbctlprint); 117 118 return; 119 120 disestablish_ret: 121 acpi_intr_disestablish(sc->sc_ih); 122 unmap: 123 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 124 return; 125 } 126