1 /* $NetBSD: zz9k_usb.c,v 1.1 2023/05/03 13:49:30 phx Exp $ */ 2 3 /* 4 * Copyright (c) 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Alain Runa. 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: zz9k_usb.c,v 1.1 2023/05/03 13:49:30 phx Exp $"); 33 34 /* miscellaneous */ 35 #include <sys/types.h> /* size_t */ 36 #include <sys/stdint.h> /* uintXX_t */ 37 #include <sys/stdbool.h> /* bool */ 38 39 /* driver(9) */ 40 #include <sys/param.h> /* NODEV */ 41 #include <sys/device.h> /* CFATTACH_DECL_NEW(), device_priv() */ 42 #include <sys/errno.h> /* . */ 43 44 /* bus_space(9) and zorro bus */ 45 #include <sys/bus.h> /* bus_space_xxx(), bus_space_xxx_t */ 46 #include <sys/cpu.h> /* kvtop() */ 47 #include <sys/systm.h> /* aprint_xxx() */ 48 49 /* zz9k related */ 50 #include <amiga/dev/zz9kvar.h> /* zz9kbus_attach_args */ 51 #include <amiga/dev/zz9kreg.h> /* ZZ9000 registers */ 52 #include "zz9k_usb.h" /* NZZ9K_USB */ 53 54 55 /* The allmighty softc structure */ 56 struct zzusb_softc { 57 device_t sc_dev; 58 struct bus_space_tag sc_bst; 59 bus_space_tag_t sc_iot; 60 bus_space_handle_t sc_regh; 61 }; 62 63 /* driver(9) essentials */ 64 static int zzusb_match(device_t parent, cfdata_t match, void *aux); 65 static void zzusb_attach(device_t parent, device_t self, void *aux); 66 CFATTACH_DECL_NEW(zz9k_usb, sizeof(struct zzusb_softc), 67 zzusb_match, zzusb_attach, NULL, NULL); 68 69 70 /* Go ahead, make my day. */ 71 72 static int 73 zzusb_match(device_t parent, cfdata_t match, void *aux) 74 { 75 struct zz9kbus_attach_args *bap = aux; 76 77 if (strcmp(bap->zzaa_name, "zz9k_usb") != 0) 78 return 0; 79 80 return 1; 81 } 82 83 static void 84 zzusb_attach(device_t parent, device_t self, void *aux) 85 { 86 struct zz9kbus_attach_args *bap = aux; 87 struct zzusb_softc *sc = device_private(self); 88 struct zzusb_softc *psc = device_private(parent); 89 90 sc->sc_dev = self; 91 sc->sc_bst.base = bap->zzaa_base; 92 sc->sc_bst.absm = &amiga_bus_stride_1; 93 sc->sc_iot = &sc->sc_bst; 94 sc->sc_regh = psc->sc_regh; 95 96 uint16_t capacity = ZZREG_R(ZZ9K_USB_CAPACITY); 97 aprint_normal(": USB device %sdetected.\n", 98 (capacity == 0) ? "not " : ""); 99 aprint_normal_dev (sc->sc_dev, 100 "MNT ZZ9000 USB driver is not implemented yet.\n"); 101 102 aprint_debug_dev(sc->sc_dev, "[DEBUG] registers at %p/%p (pa/va)\n", 103 (void *)kvtop((void *)sc->sc_regh), 104 bus_space_vaddr(sc->sc_iot, sc->sc_regh)); 105 106 /* to be implemented */ 107 } 108