octusb_octeon.c revision 217265
1#include <sys/cdefs.h> 2__FBSDID("$FreeBSD: head/sys/mips/cavium/usb/octusb_octeon.c 217265 2011-01-11 13:59:06Z jhb $"); 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/module.h> 38#include <sys/lock.h> 39#include <sys/mutex.h> 40#include <sys/condvar.h> 41#include <sys/sysctl.h> 42#include <sys/sx.h> 43#include <sys/unistd.h> 44#include <sys/callout.h> 45#include <sys/malloc.h> 46#include <sys/priv.h> 47#include <sys/rman.h> 48 49#include <dev/usb/usb.h> 50#include <dev/usb/usbdi.h> 51 52#include <dev/usb/usb_core.h> 53#include <dev/usb/usb_busdma.h> 54#include <dev/usb/usb_process.h> 55#include <dev/usb/usb_util.h> 56 57#include <dev/usb/usb_controller.h> 58#include <dev/usb/usb_bus.h> 59 60#include <contrib/octeon-sdk/cvmx.h> 61#include <contrib/octeon-sdk/cvmx-interrupt.h> 62#include <contrib/octeon-sdk/cvmx-usb.h> 63 64#include <mips/cavium/usb/octusb.h> 65 66#define MEM_RID 0 67 68static device_identify_t octusb_octeon_identify; 69static device_probe_t octusb_octeon_probe; 70static device_attach_t octusb_octeon_attach; 71static device_detach_t octusb_octeon_detach; 72static device_shutdown_t octusb_octeon_shutdown; 73 74struct octusb_octeon_softc { 75 struct octusb_softc sc_dci; /* must be first */ 76}; 77 78static void 79octusb_octeon_identify(driver_t *drv, device_t parent) 80{ 81 if (octeon_has_feature(OCTEON_FEATURE_USB)) 82 BUS_ADD_CHILD(parent, 0, "octusb", 0); 83} 84 85static int 86octusb_octeon_probe(device_t dev) 87{ 88 device_set_desc(dev, "Cavium Octeon USB controller"); 89 return (0); 90} 91 92static int 93octusb_octeon_attach(device_t dev) 94{ 95 struct octusb_octeon_softc *sc = device_get_softc(dev); 96 int err; 97 int rid; 98 99 /* setup controller interface softc */ 100 101 /* initialise some bus fields */ 102 sc->sc_dci.sc_bus.parent = dev; 103 sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices; 104 sc->sc_dci.sc_bus.devices_max = OCTUSB_MAX_DEVICES; 105 106 /* get all DMA memory */ 107 if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus, 108 USB_GET_DMA_TAG(dev), NULL)) { 109 return (ENOMEM); 110 } 111 rid = 0; 112 sc->sc_dci.sc_irq_res = 113 bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 114 CVMX_IRQ_USB, CVMX_IRQ_USB, 1, RF_ACTIVE); 115 if (!(sc->sc_dci.sc_irq_res)) { 116 goto error; 117 } 118 119 sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1); 120 if (!(sc->sc_dci.sc_bus.bdev)) { 121 goto error; 122 } 123 device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus); 124 125#if (__FreeBSD_version >= 700031) 126 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 127 NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 128#else 129 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 130 (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 131#endif 132 if (err) { 133 sc->sc_dci.sc_intr_hdl = NULL; 134 goto error; 135 } 136 err = octusb_init(&sc->sc_dci); 137 if (!err) { 138 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev); 139 } 140 if (err) { 141 goto error; 142 } 143 return (0); 144 145error: 146 octusb_octeon_detach(dev); 147 return (ENXIO); 148} 149 150static int 151octusb_octeon_detach(device_t dev) 152{ 153 struct octusb_octeon_softc *sc = device_get_softc(dev); 154 device_t bdev; 155 int err; 156 157 if (sc->sc_dci.sc_bus.bdev) { 158 bdev = sc->sc_dci.sc_bus.bdev; 159 device_detach(bdev); 160 device_delete_child(dev, bdev); 161 } 162 /* during module unload there are lots of children leftover */ 163 device_delete_all_children(dev); 164 165 if (sc->sc_dci.sc_irq_res && sc->sc_dci.sc_intr_hdl) { 166 /* 167 * only call octusb_octeon_uninit() after octusb_octeon_init() 168 */ 169 octusb_uninit(&sc->sc_dci); 170 171 err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res, 172 sc->sc_dci.sc_intr_hdl); 173 sc->sc_dci.sc_intr_hdl = NULL; 174 } 175 if (sc->sc_dci.sc_irq_res) { 176 bus_release_resource(dev, SYS_RES_IRQ, 0, 177 sc->sc_dci.sc_irq_res); 178 sc->sc_dci.sc_irq_res = NULL; 179 } 180 usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL); 181 182 return (0); 183} 184 185static int 186octusb_octeon_shutdown(device_t dev) 187{ 188 struct octusb_octeon_softc *sc = device_get_softc(dev); 189 int err; 190 191 err = bus_generic_shutdown(dev); 192 if (err) 193 return (err); 194 195 octusb_uninit(&sc->sc_dci); 196 197 return (0); 198} 199 200static device_method_t octusb_octeon_methods[] = { 201 /* Device interface */ 202 DEVMETHOD(device_identify, octusb_octeon_identify), 203 DEVMETHOD(device_probe, octusb_octeon_probe), 204 DEVMETHOD(device_attach, octusb_octeon_attach), 205 DEVMETHOD(device_detach, octusb_octeon_detach), 206 DEVMETHOD(device_shutdown, octusb_octeon_shutdown), 207 208 /* Bus interface */ 209 DEVMETHOD(bus_print_child, bus_generic_print_child), 210 211 {0, 0} 212}; 213 214static driver_t octusb_octeon_driver = { 215 "octusb", 216 octusb_octeon_methods, 217 sizeof(struct octusb_octeon_softc), 218}; 219 220static devclass_t octusb_octeon_devclass; 221 222DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0); 223