1 /* $NetBSD: ehci_hollywood.c,v 1.4 2024/10/13 16:21:37 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2024 Jared McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ehci_hollywood.c,v 1.4 2024/10/13 16:21:37 jmcneill Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/device.h> 35 #include <sys/systm.h> 36 37 #include <dev/usb/usb.h> 38 #include <dev/usb/usbdi.h> 39 #include <dev/usb/usbdivar.h> 40 #include <dev/usb/usb_mem.h> 41 #include <dev/usb/ehcireg.h> 42 #include <dev/usb/ehcivar.h> 43 44 #include <machine/wii.h> 45 #include "hollywood.h" 46 47 #define USB_CHICKENBITS 0x0d0400cc 48 #define EHCI_INTR_ENABLE 0x00008000 49 50 extern struct powerpc_bus_dma_tag wii_mem2_bus_dma_tag; 51 52 static int ehci_hollywood_match(device_t, cfdata_t, void *); 53 static void ehci_hollywood_attach(device_t, device_t, void *); 54 55 CFATTACH_DECL_NEW(ehci_hollywood, sizeof(struct ehci_softc), 56 ehci_hollywood_match, ehci_hollywood_attach, NULL, NULL); 57 58 static int 59 ehci_hollywood_match(device_t parent, cfdata_t cf, void *aux) 60 { 61 return 1; 62 } 63 64 static void 65 ehci_hollywood_attach(device_t parent, device_t self, void *aux) 66 { 67 struct hollywood_attach_args *haa = aux; 68 struct ehci_softc *sc = device_private(self); 69 int error; 70 71 sc->sc_dev = self; 72 sc->sc_bus.ub_hcpriv = sc; 73 sc->sc_bus.ub_dmatag = &wii_mem2_bus_dma_tag; 74 sc->sc_bus.ub_revision = USBREV_2_0; 75 sc->sc_flags = EHCIF_32BIT_ACCESS; 76 sc->sc_ncomp = 2; 77 sc->sc_size = 0x100; 78 sc->iot = haa->haa_bst; 79 if (bus_space_map(sc->iot, haa->haa_addr, sc->sc_size, 0, &sc->ioh)) { 80 aprint_error(": couldn't map registers\n"); 81 return; 82 } 83 84 aprint_naive("\n"); 85 aprint_normal(": EHCI\n"); 86 87 hollywood_claim_device(self, IOPEHCEN); 88 89 sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH); 90 EOWRITE4(sc, EHCI_USBINTR, 0); 91 92 out32(USB_CHICKENBITS, in32(USB_CHICKENBITS) | EHCI_INTR_ENABLE); 93 94 hollywood_intr_establish(haa->haa_irq, IPL_USB, ehci_intr, sc, 95 device_xname(self)); 96 97 error = ehci_init(sc); 98 if (error != 0) { 99 aprint_error_dev(self, "init failed, error = %d\n", error); 100 return; 101 } 102 103 sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint, 104 CFARGS_NONE); 105 } 106