1 /* $OpenBSD: xhci_acpi.c,v 1.8 2022/07/04 20:03:15 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 const 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 "PNP0D15", 56 "QCOM068B", 57 "QCOM068C", 58 NULL 59 }; 60 61 int 62 xhci_acpi_match(struct device *parent, void *match, void *aux) 63 { 64 struct acpi_attach_args *aaa = aux; 65 struct cfdata *cf = match; 66 67 if (aaa->aaa_naddr < 1) 68 return 0; 69 return acpi_matchhids(aaa, xhci_hids, cf->cf_driver->cd_name); 70 } 71 72 void 73 xhci_acpi_attach(struct device *parent, struct device *self, void *aux) 74 { 75 struct xhci_acpi_softc *sc = (struct xhci_acpi_softc *)self; 76 struct acpi_attach_args *aaa = aux; 77 struct aml_node *node; 78 int error; 79 80 sc->sc_acpi = (struct acpi_softc *)parent; 81 sc->sc_node = aaa->aaa_node; 82 printf(" %s", sc->sc_node->name); 83 84 /* 85 * The Qualcomm dual role controller has the interrupt on a 86 * child node. Find it and parse its resources to find the 87 * interrupt. 88 */ 89 if (strcmp(aaa->aaa_dev, "QCOM068B") == 0 || 90 strcmp(aaa->aaa_dev, "QCOM068C") == 0) { 91 SIMPLEQ_FOREACH(node, &sc->sc_node->son, sib) { 92 if (strncmp(node->name, "USB", 3) == 0) { 93 aaa->aaa_node = node; 94 acpi_parse_crs(sc->sc_acpi, aaa); 95 break; 96 } 97 } 98 } 99 100 if (aaa->aaa_nirq < 1) { 101 printf(": no interrupt\n"); 102 return; 103 } 104 105 printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]); 106 printf(" irq %d", aaa->aaa_irq[0]); 107 108 sc->sc.iot = aaa->aaa_bst[0]; 109 sc->sc.sc_size = aaa->aaa_size[0]; 110 sc->sc.sc_bus.dmatag = aaa->aaa_dmat; 111 112 if (bus_space_map(sc->sc.iot, aaa->aaa_addr[0], aaa->aaa_size[0], 113 0, &sc->sc.ioh)) { 114 printf(": can't map registers\n"); 115 return; 116 } 117 118 sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0], 119 IPL_USB, xhci_intr, sc, sc->sc.sc_bus.bdev.dv_xname); 120 if (sc->sc_ih == NULL) { 121 printf(": can't establish interrupt\n"); 122 goto unmap; 123 } 124 125 strlcpy(sc->sc.sc_vendor, "Generic", sizeof(sc->sc.sc_vendor)); 126 if ((error = xhci_init(&sc->sc)) != 0) { 127 printf("%s: init failed, error=%d\n", 128 sc->sc.sc_bus.bdev.dv_xname, error); 129 goto disestablish_ret; 130 } 131 132 /* Attach usb device. */ 133 config_found(self, &sc->sc.sc_bus, usbctlprint); 134 135 /* Now that the stack is ready, config' the HC and enable interrupts. */ 136 xhci_config(&sc->sc); 137 138 return; 139 140 disestablish_ret: 141 acpi_intr_disestablish(sc->sc_ih); 142 unmap: 143 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 144 return; 145 } 146