1 /* $OpenBSD: xhci_acpi.c,v 1.3 2020/05/08 11:18:01 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/xhcireg.h> 37 #include <dev/usb/xhcivar.h> 38 39 struct xhci_acpi_softc { 40 struct xhci_softc sc; 41 struct acpi_softc *sc_acpi; 42 struct aml_node *sc_node; 43 void *sc_ih; 44 }; 45 46 int xhci_acpi_match(struct device *, void *, void *); 47 void xhci_acpi_attach(struct device *, struct device *, void *); 48 49 struct cfattach xhci_acpi_ca = { 50 sizeof(struct xhci_acpi_softc), xhci_acpi_match, xhci_acpi_attach 51 }; 52 53 const char *xhci_hids[] = { 54 "PNP0D10", 55 NULL 56 }; 57 58 int 59 xhci_acpi_match(struct device *parent, void *match, void *aux) 60 { 61 struct acpi_attach_args *aaa = aux; 62 struct cfdata *cf = match; 63 64 return acpi_matchhids(aaa, xhci_hids, cf->cf_driver->cd_name); 65 } 66 67 void 68 xhci_acpi_attach(struct device *parent, struct device *self, void *aux) 69 { 70 struct xhci_acpi_softc *sc = (struct xhci_acpi_softc *)self; 71 struct acpi_attach_args *aaa = aux; 72 int error; 73 74 sc->sc_acpi = (struct acpi_softc *)parent; 75 sc->sc_node = aaa->aaa_node; 76 printf(" %s", sc->sc_node->name); 77 78 if (aaa->aaa_naddr < 1) { 79 printf(": no registers\n"); 80 return; 81 } 82 83 if (aaa->aaa_nirq < 1) { 84 printf(": no interrupt\n"); 85 return; 86 } 87 88 printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]); 89 printf(" irq %d", aaa->aaa_irq[0]); 90 91 sc->sc.iot = aaa->aaa_bst[0]; 92 sc->sc.sc_size = aaa->aaa_size[0]; 93 sc->sc.sc_bus.dmatag = aaa->aaa_dmat; 94 95 if (bus_space_map(sc->sc.iot, aaa->aaa_addr[0], aaa->aaa_size[0], 96 0, &sc->sc.ioh)) { 97 printf(": can't map registers\n"); 98 return; 99 } 100 101 sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0], 102 IPL_USB, xhci_intr, sc, sc->sc.sc_bus.bdev.dv_xname); 103 if (sc->sc_ih == NULL) { 104 printf(": can't establish interrupt\n"); 105 goto unmap; 106 } 107 108 strlcpy(sc->sc.sc_vendor, "Generic", sizeof(sc->sc.sc_vendor)); 109 if ((error = xhci_init(&sc->sc)) != 0) { 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 /* Now that the stack is ready, config' the HC and enable interrupts. */ 119 xhci_config(&sc->sc); 120 121 return; 122 123 disestablish_ret: 124 #ifdef notyet 125 acpi_intr_disestablish(sc->sc_ih); 126 #endif 127 unmap: 128 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 129 return; 130 } 131