1 /* $NetBSD: ohci_s3c24x0.c,v 1.10 2018/04/09 16:21:09 jakllsch Exp $ */ 2 3 /* derived from ohci_pci.c */ 4 5 /* 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Lennart Augustsson (lennart@augustsson.net) at 11 * Carlstedt Research & Technology. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.10 2018/04/09 16:21:09 jakllsch Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/proc.h> 43 #include <sys/queue.h> 44 45 #include <sys/bus.h> 46 47 #include <arm/s3c2xx0/s3c24x0var.h> 48 49 #include <dev/usb/usb.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdivar.h> 52 #include <dev/usb/usb_mem.h> 53 54 #include <dev/usb/ohcireg.h> 55 #include <dev/usb/ohcivar.h> 56 57 int ohci_ssio_match(device_t, cfdata_t, void *); 58 void ohci_ssio_attach(device_t, device_t, void *); 59 int ohci_ssio_detach(device_t, int); 60 61 extern int ohcidebug; 62 63 struct ohci_ssio_softc { 64 ohci_softc_t sc; 65 66 void *sc_ih; /* interrupt vectoring */ 67 }; 68 69 CFATTACH_DECL_NEW(ohci_ssio, sizeof(struct ohci_ssio_softc), 70 ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate); 71 72 int 73 ohci_ssio_match(device_t parent, cfdata_t match, void *aux) 74 { 75 struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux; 76 /* XXX: check some registers */ 77 78 if (sa->sa_dmat == NULL) { 79 /* busdma tag is not initialized. */ 80 return 0; 81 } 82 83 return 1; 84 } 85 86 void 87 ohci_ssio_attach(device_t parent, device_t self, void *aux) 88 { 89 struct ohci_ssio_softc *sc = device_private(self); 90 struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux; 91 92 aprint_normal("\n"); 93 aprint_naive("\n"); 94 95 sc->sc.sc_dev = self; 96 sc->sc.sc_bus.ub_hcpriv = sc; 97 98 sc->sc.iot = sa->sa_iot; 99 /*ohcidebug=15;*/ 100 101 /* Map I/O registers */ 102 if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) { 103 aprint_error_dev(self, "can't map mem space\n"); 104 return; 105 } 106 107 /* Disable interrupts, so we don't get any spurious ones. */ 108 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 109 OHCI_ALL_INTRS); 110 111 sc->sc.sc_bus.ub_dmatag = sa->sa_dmat; 112 113 /* Enable the device. */ 114 /* XXX: provide clock to USB block */ 115 116 /* establish the interrupt. */ 117 sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc); 118 if (sc->sc_ih == NULL) { 119 aprint_error_dev(self, "couldn't establish interrupt\n"); 120 return; 121 } 122 123 int err = ohci_init(&sc->sc); 124 if (err) { 125 aprint_error_dev(self, "init failed, error=%d\n", err); 126 return; 127 } 128 129 /* Attach usb device. */ 130 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 131 } 132 133 int 134 ohci_ssio_detach(device_t self, int flags) 135 { 136 return 0; 137 } 138