xls_ehci.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss@carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/sys/mips/rmi/xls_ehci.c 330897 2018-03-14 03:19:51Z eadler $"); 35 36#include "opt_bus.h" 37 38#include <sys/stdint.h> 39#include <sys/stddef.h> 40#include <sys/param.h> 41#include <sys/queue.h> 42#include <sys/types.h> 43#include <sys/systm.h> 44#include <sys/kernel.h> 45#include <sys/bus.h> 46#include <sys/module.h> 47#include <sys/lock.h> 48#include <sys/mutex.h> 49#include <sys/condvar.h> 50#include <sys/sysctl.h> 51#include <sys/sx.h> 52#include <sys/unistd.h> 53#include <sys/callout.h> 54#include <sys/malloc.h> 55#include <sys/priv.h> 56 57#include <sys/rman.h> 58#include <machine/resource.h> 59 60#include <dev/usb/usb.h> 61#include <dev/usb/usbdi.h> 62 63#include <dev/usb/usb_core.h> 64#include <dev/usb/usb_busdma.h> 65#include <dev/usb/usb_process.h> 66#include <dev/usb/usb_util.h> 67 68#include <dev/usb/usb_controller.h> 69#include <dev/usb/usb_bus.h> 70#include <dev/usb/controller/ehci.h> 71#include <dev/usb/controller/ehcireg.h> 72#include <mips/rmi/pic.h> 73 74static device_attach_t ehci_xls_attach; 75static device_detach_t ehci_xls_detach; 76 77static const char *xlr_usb_dev_desc = "RMI XLR USB 2.0 controller"; 78static const char *xlr_vendor_desc = "RMI Corp"; 79 80static int 81ehci_xls_probe(device_t self) 82{ 83 /* TODO see if usb is enabled on the board */ 84 device_set_desc(self, xlr_usb_dev_desc); 85 return BUS_PROBE_DEFAULT; 86} 87 88static int 89ehci_xls_attach(device_t self) 90{ 91 ehci_softc_t *sc = device_get_softc(self); 92 int err; 93 int rid; 94 95 sc->sc_bus.parent = self; 96 sc->sc_bus.devices = sc->sc_devices; 97 sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 98 sc->sc_bus.dma_bits = 32; 99 100 /* get all DMA memory */ 101 if (usb_bus_mem_alloc_all(&sc->sc_bus, 102 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 103 return (ENOMEM); 104 } 105 106 rid = 0; 107 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 108 RF_ACTIVE); 109 if (!sc->sc_io_res) { 110 device_printf(self, "Could not map memory\n"); 111 goto error; 112 } 113 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 114 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 115 printf("IO Resource tag %lx, hdl %lx, size %lx\n", 116 (u_long)sc->sc_io_tag, (u_long)sc->sc_io_hdl, 117 (u_long)sc->sc_io_size); 118 119 rid = 0; 120 sc->sc_irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 121 PIC_USB_IRQ, PIC_USB_IRQ, 1, RF_SHAREABLE | RF_ACTIVE); 122 if (sc->sc_irq_res == NULL) { 123 device_printf(self, "Could not allocate irq\n"); 124 goto error; 125 } 126 127 sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 128 if (!sc->sc_bus.bdev) { 129 device_printf(self, "Could not add USB device\n"); 130 goto error; 131 } 132 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 133 device_set_desc(sc->sc_bus.bdev, xlr_usb_dev_desc); 134 135 strlcpy(sc->sc_vendor, xlr_vendor_desc, sizeof(sc->sc_vendor)); 136 137 err = bus_setup_intr(self, sc->sc_irq_res, 138 INTR_TYPE_BIO | INTR_MPSAFE, NULL, 139 (driver_intr_t *) ehci_interrupt, sc, &sc->sc_intr_hdl); 140 if (err) { 141 device_printf(self, "Could not setup irq, %d\n", err); 142 sc->sc_intr_hdl = NULL; 143 goto error; 144 } 145 146 err = ehci_init(sc); 147 if (err) { 148 device_printf(self, "USB init failed err=%d\n", err); 149 goto error; 150 } 151 152 err = device_probe_and_attach(sc->sc_bus.bdev); 153 if (err) { 154 device_printf(self, "USB probe and attach failed err=%d\n", err); 155 goto error; 156 } 157 158 return (0); 159 160error: 161 ehci_xls_detach(self); 162 return (ENXIO); 163} 164 165static int 166ehci_xls_detach(device_t self) 167{ 168 ehci_softc_t *sc = device_get_softc(self); 169 int err; 170 171 /* during module unload there are lots of children leftover */ 172 device_delete_children(self); 173 174 if (sc->sc_irq_res && sc->sc_intr_hdl) { 175 ehci_detach(sc); 176 177 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 178 if (err) 179 device_printf(self, "Could not tear down irq, %d\n", 180 err); 181 sc->sc_intr_hdl = 0; 182 } 183 184 if (sc->sc_irq_res) { 185 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 186 sc->sc_irq_res = NULL; 187 } 188 if (sc->sc_io_res) { 189 bus_release_resource(self, SYS_RES_MEMORY, 0, 190 sc->sc_io_res); 191 sc->sc_io_res = NULL; 192 sc->sc_io_tag = 0; 193 sc->sc_io_hdl = 0; 194 } 195 196 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 197 198 return (0); 199} 200 201static device_method_t ehci_methods[] = { 202 /* Device interface */ 203 DEVMETHOD(device_probe, ehci_xls_probe), 204 DEVMETHOD(device_attach, ehci_xls_attach), 205 DEVMETHOD(device_detach, ehci_xls_detach), 206 DEVMETHOD(device_suspend, bus_generic_suspend), 207 DEVMETHOD(device_resume, bus_generic_resume), 208 DEVMETHOD(device_shutdown, bus_generic_shutdown), 209 210 DEVMETHOD_END 211}; 212 213static driver_t ehci_driver = { 214 .name = "ehci", 215 .methods = ehci_methods, 216 .size = sizeof(struct ehci_softc), 217}; 218 219static devclass_t ehci_devclass; 220 221DRIVER_MODULE(ehci, iodi, ehci_driver, ehci_devclass, 0, 0); 222MODULE_DEPEND(ehci, usb, 1, 1, 1); 223