octusb_octeon.c revision 228640
1#include <sys/cdefs.h> 2__FBSDID("$FreeBSD: head/sys/mips/cavium/usb/octusb_octeon.c 228640 2011-12-17 15:42:37Z bz $"); 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; 72 73struct octusb_octeon_softc { 74 struct octusb_softc sc_dci; /* must be first */ 75}; 76 77static void 78octusb_octeon_identify(driver_t *drv, device_t parent) 79{ 80 if (octeon_has_feature(OCTEON_FEATURE_USB)) 81 BUS_ADD_CHILD(parent, 0, "octusb", 0); 82} 83 84static int 85octusb_octeon_probe(device_t dev) 86{ 87 device_set_desc(dev, "Cavium Octeon USB controller"); 88 return (0); 89} 90 91static int 92octusb_octeon_attach(device_t dev) 93{ 94 struct octusb_octeon_softc *sc = device_get_softc(dev); 95 int err; 96 int rid; 97 98 /* setup controller interface softc */ 99 100 /* initialise some bus fields */ 101 sc->sc_dci.sc_bus.parent = dev; 102 sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices; 103 sc->sc_dci.sc_bus.devices_max = OCTUSB_MAX_DEVICES; 104 105 /* get all DMA memory */ 106 if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus, 107 USB_GET_DMA_TAG(dev), NULL)) { 108 return (ENOMEM); 109 } 110 rid = 0; 111 sc->sc_dci.sc_irq_res = 112 bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 113 CVMX_IRQ_USB, CVMX_IRQ_USB, 1, RF_ACTIVE); 114 if (!(sc->sc_dci.sc_irq_res)) { 115 goto error; 116 } 117 118 sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1); 119 if (!(sc->sc_dci.sc_bus.bdev)) { 120 goto error; 121 } 122 device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus); 123 124#if (__FreeBSD_version >= 700031) 125 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 126 NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 127#else 128 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 129 (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl); 130#endif 131 if (err) { 132 sc->sc_dci.sc_intr_hdl = NULL; 133 goto error; 134 } 135 err = octusb_init(&sc->sc_dci); 136 if (!err) { 137 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev); 138 } 139 if (err) { 140 goto error; 141 } 142 return (0); 143 144error: 145 octusb_octeon_detach(dev); 146 return (ENXIO); 147} 148 149static int 150octusb_octeon_detach(device_t dev) 151{ 152 struct octusb_octeon_softc *sc = device_get_softc(dev); 153 device_t bdev; 154 int err; 155 156 if (sc->sc_dci.sc_bus.bdev) { 157 bdev = sc->sc_dci.sc_bus.bdev; 158 device_detach(bdev); 159 device_delete_child(dev, bdev); 160 } 161 /* during module unload there are lots of children leftover */ 162 device_delete_children(dev); 163 164 if (sc->sc_dci.sc_irq_res && sc->sc_dci.sc_intr_hdl) { 165 /* 166 * only call octusb_octeon_uninit() after octusb_octeon_init() 167 */ 168 octusb_uninit(&sc->sc_dci); 169 170 err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res, 171 sc->sc_dci.sc_intr_hdl); 172 sc->sc_dci.sc_intr_hdl = NULL; 173 } 174 if (sc->sc_dci.sc_irq_res) { 175 bus_release_resource(dev, SYS_RES_IRQ, 0, 176 sc->sc_dci.sc_irq_res); 177 sc->sc_dci.sc_irq_res = NULL; 178 } 179 usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL); 180 181 return (0); 182} 183 184static device_method_t octusb_octeon_methods[] = { 185 /* Device interface */ 186 DEVMETHOD(device_identify, octusb_octeon_identify), 187 DEVMETHOD(device_probe, octusb_octeon_probe), 188 DEVMETHOD(device_attach, octusb_octeon_attach), 189 DEVMETHOD(device_detach, octusb_octeon_detach), 190 DEVMETHOD(device_resume, bus_generic_resume), 191 DEVMETHOD(device_suspend, bus_generic_suspend), 192 DEVMETHOD(device_shutdown, bus_generic_shutdown), 193 194 DEVMETHOD_END 195}; 196 197static driver_t octusb_octeon_driver = { 198 .name = "octusb", 199 .methods = octusb_octeon_methods, 200 .size = sizeof(struct octusb_octeon_softc), 201}; 202 203static devclass_t octusb_octeon_devclass; 204 205DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0); 206