octusb_octeon.c revision 210312
1#include <sys/cdefs.h> 2__FBSDID("$FreeBSD: head/sys/mips/cavium/usb/octusb_octeon.c 210312 2010-07-20 19:32:25Z jmallett $"); 3 4/*- 5 * Copyright (c) 2007-2008 Hans Petter Selasky. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/stdint.h> 30#include <sys/stddef.h> 31#include <sys/param.h> 32#include <sys/queue.h> 33#include <sys/types.h> 34#include <sys/systm.h> 35#include <sys/kernel.h> 36#include <sys/bus.h> 37#include <sys/linker_set.h> 38#include <sys/module.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/condvar.h> 42#include <sys/sysctl.h> 43#include <sys/sx.h> 44#include <sys/unistd.h> 45#include <sys/callout.h> 46#include <sys/malloc.h> 47#include <sys/priv.h> 48#include <sys/rman.h> 49 50#include <dev/usb/usb.h> 51#include <dev/usb/usbdi.h> 52 53#include <dev/usb/usb_core.h> 54#include <dev/usb/usb_busdma.h> 55#include <dev/usb/usb_process.h> 56#include <dev/usb/usb_util.h> 57 58#include <dev/usb/usb_controller.h> 59#include <dev/usb/usb_bus.h> 60 61#include <contrib/octeon-sdk/cvmx.h> 62#include <contrib/octeon-sdk/cvmx-interrupt.h> 63#include <contrib/octeon-sdk/cvmx-usb.h> 64 65#include <mips/cavium/usb/octusb.h> 66 67#define MEM_RID 0 68 69static device_identify_t octusb_octeon_identify; 70static device_probe_t octusb_octeon_probe; 71static device_attach_t octusb_octeon_attach; 72static device_detach_t octusb_octeon_detach; 73static device_shutdown_t octusb_octeon_shutdown; 74 75struct octusb_octeon_softc { 76 struct octusb_softc sc_dci; /* must be first */ 77}; 78 79static void 80octusb_octeon_identify(driver_t *drv, device_t parent) 81{ 82 if (octeon_has_feature(OCTEON_FEATURE_USB)) 83 BUS_ADD_CHILD(parent, 0, "octusb", 0); 84} 85 86static int 87octusb_octeon_probe(device_t dev) 88{ 89 device_set_desc(dev, "Cavium Octeon USB controller"); 90 return (0); 91} 92 93static int 94octusb_octeon_attach(device_t dev) 95{ 96 struct octusb_octeon_softc *sc = device_get_softc(dev); 97 int err; 98 int rid; 99 100 /* setup controller interface softc */ 101 102 /* initialise some bus fields */ 103 sc->sc_dci.sc_bus.parent = dev; 104 sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices; 105 sc->sc_dci.sc_bus.devices_max = OCTUSB_MAX_DEVICES; 106 107 /* get all DMA memory */ 108 if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus, 109 USB_GET_DMA_TAG(dev), NULL)) { 110 return (ENOMEM); 111 } 112 rid = 0; 113 sc->sc_dci.sc_irq_res = 114 bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 115 CVMX_IRQ_USB, CVMX_IRQ_USB, 1, RF_ACTIVE); 116 if (!(sc->sc_dci.sc_irq_res)) { 117 goto error; 118 } 119 120 sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1); 121 if (!(sc->sc_dci.sc_bus.bdev)) { 122 goto error; 123 } 124 device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus); 125 126#if (__FreeBSD_version >= 700031) 127 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 128 NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 129#else 130 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 131 (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 132#endif 133 if (err) { 134 sc->sc_dci.sc_intr_hdl = NULL; 135 goto error; 136 } 137 err = octusb_init(&sc->sc_dci); 138 if (!err) { 139 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev); 140 } 141 if (err) { 142 goto error; 143 } 144 return (0); 145 146error: 147 octusb_octeon_detach(dev); 148 return (ENXIO); 149} 150 151static int 152octusb_octeon_detach(device_t dev) 153{ 154 struct octusb_octeon_softc *sc = device_get_softc(dev); 155 device_t bdev; 156 int err; 157 158 if (sc->sc_dci.sc_bus.bdev) { 159 bdev = sc->sc_dci.sc_bus.bdev; 160 device_detach(bdev); 161 device_delete_child(dev, bdev); 162 } 163 /* during module unload there are lots of children leftover */ 164 device_delete_all_children(dev); 165 166 if (sc->sc_dci.sc_irq_res && sc->sc_dci.sc_intr_hdl) { 167 /* 168 * only call octusb_octeon_uninit() after octusb_octeon_init() 169 */ 170 octusb_uninit(&sc->sc_dci); 171 172 err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res, 173 sc->sc_dci.sc_intr_hdl); 174 sc->sc_dci.sc_intr_hdl = NULL; 175 } 176 if (sc->sc_dci.sc_irq_res) { 177 bus_release_resource(dev, SYS_RES_IRQ, 0, 178 sc->sc_dci.sc_irq_res); 179 sc->sc_dci.sc_irq_res = NULL; 180 } 181 usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL); 182 183 return (0); 184} 185 186static int 187octusb_octeon_shutdown(device_t dev) 188{ 189 struct octusb_octeon_softc *sc = device_get_softc(dev); 190 int err; 191 192 err = bus_generic_shutdown(dev); 193 if (err) 194 return (err); 195 196 octusb_uninit(&sc->sc_dci); 197 198 return (0); 199} 200 201static device_method_t octusb_octeon_methods[] = { 202 /* Device interface */ 203 DEVMETHOD(device_identify, octusb_octeon_identify), 204 DEVMETHOD(device_probe, octusb_octeon_probe), 205 DEVMETHOD(device_attach, octusb_octeon_attach), 206 DEVMETHOD(device_detach, octusb_octeon_detach), 207 DEVMETHOD(device_shutdown, octusb_octeon_shutdown), 208 209 /* Bus interface */ 210 DEVMETHOD(bus_print_child, bus_generic_print_child), 211 212 {0, 0} 213}; 214 215static driver_t octusb_octeon_driver = { 216 "octusb", 217 octusb_octeon_methods, 218 sizeof(struct octusb_octeon_softc), 219}; 220 221static devclass_t octusb_octeon_devclass; 222 223DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0); 224