1/*- 2 * Copyright (c) 1998 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Lennart Augustsson (augustss@carlstedt.se) at 7 * Carlstedt Research & Technology. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: stable/11/sys/mips/rmi/xls_ehci.c 323202 2017-09-06 02:04:14Z emaste $"); 33 34#include "opt_bus.h" 35 36#include <sys/stdint.h> 37#include <sys/stddef.h> 38#include <sys/param.h> 39#include <sys/queue.h> 40#include <sys/types.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/bus.h> 44#include <sys/module.h> 45#include <sys/lock.h> 46#include <sys/mutex.h> 47#include <sys/condvar.h> 48#include <sys/sysctl.h> 49#include <sys/sx.h> 50#include <sys/unistd.h> 51#include <sys/callout.h> 52#include <sys/malloc.h> 53#include <sys/priv.h> 54 55#include <sys/rman.h> 56#include <machine/resource.h> 57 58#include <dev/usb/usb.h> 59#include <dev/usb/usbdi.h> 60 61#include <dev/usb/usb_core.h> 62#include <dev/usb/usb_busdma.h> 63#include <dev/usb/usb_process.h> 64#include <dev/usb/usb_util.h> 65 66#include <dev/usb/usb_controller.h> 67#include <dev/usb/usb_bus.h> 68#include <dev/usb/controller/ehci.h> 69#include <dev/usb/controller/ehcireg.h> 70#include <mips/rmi/pic.h> 71 72static device_attach_t ehci_xls_attach; 73static device_detach_t ehci_xls_detach; 74 75static const char *xlr_usb_dev_desc = "RMI XLR USB 2.0 controller"; 76static const char *xlr_vendor_desc = "RMI Corp"; 77 78static int 79ehci_xls_probe(device_t self) 80{ 81 /* TODO see if usb is enabled on the board */ 82 device_set_desc(self, xlr_usb_dev_desc); 83 return BUS_PROBE_DEFAULT; 84} 85 86static int 87ehci_xls_attach(device_t self) 88{ 89 ehci_softc_t *sc = device_get_softc(self); 90 int err; 91 int rid; 92 93 sc->sc_bus.parent = self; 94 sc->sc_bus.devices = sc->sc_devices; 95 sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 96 sc->sc_bus.dma_bits = 32; 97 98 /* get all DMA memory */ 99 if (usb_bus_mem_alloc_all(&sc->sc_bus, 100 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 101 return (ENOMEM); 102 } 103 104 rid = 0; 105 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 106 RF_ACTIVE); 107 if (!sc->sc_io_res) { 108 device_printf(self, "Could not map memory\n"); 109 goto error; 110 } 111 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 112 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 113 printf("IO Resource tag %lx, hdl %lx, size %lx\n", 114 (u_long)sc->sc_io_tag, (u_long)sc->sc_io_hdl, 115 (u_long)sc->sc_io_size); 116 117 rid = 0; 118 sc->sc_irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 119 PIC_USB_IRQ, PIC_USB_IRQ, 1, RF_SHAREABLE | RF_ACTIVE); 120 if (sc->sc_irq_res == NULL) { 121 device_printf(self, "Could not allocate irq\n"); 122 goto error; 123 } 124 125 sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 126 if (!sc->sc_bus.bdev) { 127 device_printf(self, "Could not add USB device\n"); 128 goto error; 129 } 130 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 131 device_set_desc(sc->sc_bus.bdev, xlr_usb_dev_desc); 132 133 strlcpy(sc->sc_vendor, xlr_vendor_desc, sizeof(sc->sc_vendor)); 134 135 err = bus_setup_intr(self, sc->sc_irq_res, 136 INTR_TYPE_BIO | INTR_MPSAFE, NULL, 137 (driver_intr_t *) ehci_interrupt, sc, &sc->sc_intr_hdl); 138 if (err) { 139 device_printf(self, "Could not setup irq, %d\n", err); 140 sc->sc_intr_hdl = NULL; 141 goto error; 142 } 143 144 err = ehci_init(sc); 145 if (err) { 146 device_printf(self, "USB init failed err=%d\n", err); 147 goto error; 148 } 149 150 err = device_probe_and_attach(sc->sc_bus.bdev); 151 if (err) { 152 device_printf(self, "USB probe and attach failed err=%d\n", err); 153 goto error; 154 } 155 156 return (0); 157 158error: 159 ehci_xls_detach(self); 160 return (ENXIO); 161} 162 163static int 164ehci_xls_detach(device_t self) 165{ 166 ehci_softc_t *sc = device_get_softc(self); 167 int err; 168 169 /* during module unload there are lots of children leftover */ 170 device_delete_children(self); 171 172 if (sc->sc_irq_res && sc->sc_intr_hdl) { 173 ehci_detach(sc); 174 175 err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 176 if (err) 177 device_printf(self, "Could not tear down irq, %d\n", 178 err); 179 sc->sc_intr_hdl = 0; 180 } 181 182 if (sc->sc_irq_res) { 183 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 184 sc->sc_irq_res = NULL; 185 } 186 if (sc->sc_io_res) { 187 bus_release_resource(self, SYS_RES_MEMORY, 0, 188 sc->sc_io_res); 189 sc->sc_io_res = NULL; 190 sc->sc_io_tag = 0; 191 sc->sc_io_hdl = 0; 192 } 193 194 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 195 196 return (0); 197} 198 199static device_method_t ehci_methods[] = { 200 /* Device interface */ 201 DEVMETHOD(device_probe, ehci_xls_probe), 202 DEVMETHOD(device_attach, ehci_xls_attach), 203 DEVMETHOD(device_detach, ehci_xls_detach), 204 DEVMETHOD(device_suspend, bus_generic_suspend), 205 DEVMETHOD(device_resume, bus_generic_resume), 206 DEVMETHOD(device_shutdown, bus_generic_shutdown), 207 208 DEVMETHOD_END 209}; 210 211static driver_t ehci_driver = { 212 .name = "ehci", 213 .methods = ehci_methods, 214 .size = sizeof(struct ehci_softc), 215}; 216 217static devclass_t ehci_devclass; 218 219DRIVER_MODULE(ehci, iodi, ehci_driver, ehci_devclass, 0, 0); 220MODULE_DEPEND(ehci, usb, 1, 1, 1); 221