1 /* $NetBSD: slhci_zbus.c,v 1.1 2013/04/27 22:27:33 rkujawa Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Radoslaw Kujawa. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: slhci_zbus.c,v 1.1 2013/04/27 22:27:33 rkujawa Exp $"); 34 35 /* 36 * Thylacine driver. 37 * Inspired by slhci_intio.c. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 #include <sys/systm.h> 44 #include <sys/bus.h> 45 46 #include <amiga/amiga/device.h> 47 #include <amiga/amiga/isr.h> 48 49 #include <amiga/dev/zbusvar.h> 50 51 #include <dev/usb/usb.h> 52 #include <dev/usb/usbdi.h> 53 #include <dev/usb/usbdivar.h> 54 55 #include <dev/ic/sl811hsreg.h> 56 #include <dev/ic/sl811hsvar.h> 57 58 #define THYLACINE_SLHCI_PWR_OFFSET 0x100 59 #define THYLACINE_SLHCI_ADDR_OFFSET 0x1 60 #define THYLACINE_SLHCI_DATA_STRIDE 0x4000 61 #define THYLACINE_SIZE 0x8000 62 63 static int slhci_zbus_match(device_t, cfdata_t , void *); 64 static void slhci_zbus_attach(device_t, device_t, void *); 65 static void slhci_zbus_enable_power(void *, enum power_change); 66 67 struct slhci_zbus_softc { 68 struct slhci_softc sc_sc; 69 70 struct bus_space_tag sc_bst; 71 struct isr sc_isr; 72 }; 73 74 CFATTACH_DECL_NEW(slhci_zbus, sizeof(struct slhci_zbus_softc), 75 slhci_zbus_match, slhci_zbus_attach, NULL, NULL); 76 77 static int 78 slhci_zbus_match(device_t parent, cfdata_t cf, void *aux) 79 { 80 struct zbus_args *zap = aux; 81 82 /* Thylacine */ 83 if (zap->manid == 0x1392 && zap->prodid == 0x1) { 84 return 1; 85 } 86 87 return 0; 88 } 89 90 static void 91 slhci_zbus_attach(device_t parent, device_t self, void *aux) 92 { 93 struct slhci_zbus_softc *zsc; 94 struct slhci_softc *sc; 95 struct zbus_args *zap; 96 bus_space_tag_t iot; 97 bus_space_handle_t ioh; 98 99 zap = aux; 100 zsc = device_private(self); 101 sc = &zsc->sc_sc; 102 sc->sc_dev = self; 103 sc->sc_bus.hci_private = sc; 104 105 zsc->sc_bst.base = (bus_addr_t)zap->va; 106 zsc->sc_bst.absm = &amiga_bus_stride_1; 107 iot = &zsc->sc_bst; 108 109 aprint_normal(": Thylacine USB Host Controller\n"); 110 111 if (bus_space_map(iot, THYLACINE_SLHCI_ADDR_OFFSET, THYLACINE_SIZE, 0, 112 &ioh)) { 113 aprint_error_dev(sc->sc_dev, "can't map the bus\n"); 114 } 115 116 slhci_preinit(sc, slhci_zbus_enable_power, iot, ioh, 500, 117 THYLACINE_SLHCI_DATA_STRIDE); 118 119 /* Attach interrupt routine. */ 120 zsc->sc_isr.isr_intr = slhci_intr; 121 zsc->sc_isr.isr_arg = sc; 122 zsc->sc_isr.isr_ipl = 6; 123 add_isr(&zsc->sc_isr); 124 125 slhci_attach(sc); 126 127 } 128 129 static void 130 slhci_zbus_enable_power(void *arg, enum power_change mode) 131 { 132 struct slhci_zbus_softc *zsc = arg; 133 134 /* 135 * The hardware is dumb. Changing power mode depends only on A8 being 136 * low or high. 137 */ 138 if (mode == POWER_ON) 139 bus_space_read_1(zsc->sc_sc.sc_iot, zsc->sc_sc.sc_ioh, 140 THYLACINE_SLHCI_DATA_STRIDE); 141 else 142 bus_space_read_1(zsc->sc_sc.sc_iot, zsc->sc_sc.sc_ioh, 143 THYLACINE_SLHCI_PWR_OFFSET); 144 } 145 146