octusb_octeon.c revision 278278
1#include <sys/cdefs.h> 2__FBSDID("$FreeBSD: stable/10/sys/mips/cavium/usb/octusb_octeon.c 278278 2015-02-05 20:03:02Z hselasky $"); 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 <mips/cavium/octeon_irq.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 int nports; 98 int i; 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 sc->sc_dci.sc_bus.dma_bits = 32; 107 108 /* get all DMA memory */ 109 if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus, 110 USB_GET_DMA_TAG(dev), NULL)) { 111 return (ENOMEM); 112 } 113 nports = cvmx_usb_get_num_ports(); 114 if (nports > OCTUSB_MAX_PORTS) 115 panic("octusb: too many USB ports %d", nports); 116 for (i = 0; i < nports; i++) { 117 rid = 0; 118 sc->sc_dci.sc_irq_res[i] = 119 bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 120 OCTEON_IRQ_USB0 + i, OCTEON_IRQ_USB0 + i, 1, RF_ACTIVE); 121 if (!(sc->sc_dci.sc_irq_res[i])) { 122 goto error; 123 } 124 125#if (__FreeBSD_version >= 700031) 126 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE, 127 NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]); 128#else 129 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE, 130 (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]); 131#endif 132 if (err) { 133 sc->sc_dci.sc_intr_hdl[i] = NULL; 134 goto error; 135 } 136 } 137 138 sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1); 139 if (!(sc->sc_dci.sc_bus.bdev)) { 140 goto error; 141 } 142 device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus); 143 144 145 err = octusb_init(&sc->sc_dci); 146 if (!err) { 147 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev); 148 } 149 if (err) { 150 goto error; 151 } 152 return (0); 153 154error: 155 octusb_octeon_detach(dev); 156 return (ENXIO); 157} 158 159static int 160octusb_octeon_detach(device_t dev) 161{ 162 struct octusb_octeon_softc *sc = device_get_softc(dev); 163 device_t bdev; 164 int err; 165 int nports; 166 int i; 167 168 if (sc->sc_dci.sc_bus.bdev) { 169 bdev = sc->sc_dci.sc_bus.bdev; 170 device_detach(bdev); 171 device_delete_child(dev, bdev); 172 } 173 /* during module unload there are lots of children leftover */ 174 device_delete_children(dev); 175 176 if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0]) 177 /* 178 * only call octusb_octeon_uninit() after octusb_octeon_init() 179 */ 180 octusb_uninit(&sc->sc_dci); 181 182 nports = cvmx_usb_get_num_ports(); 183 if (nports > OCTUSB_MAX_PORTS) 184 panic("octusb: too many USB ports %d", nports); 185 for (i = 0; i < nports; i++) { 186 if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0]) { 187 err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res[i], 188 sc->sc_dci.sc_intr_hdl[i]); 189 sc->sc_dci.sc_intr_hdl[i] = NULL; 190 } 191 if (sc->sc_dci.sc_irq_res) { 192 bus_release_resource(dev, SYS_RES_IRQ, 0, 193 sc->sc_dci.sc_irq_res[i]); 194 sc->sc_dci.sc_irq_res[i] = NULL; 195 } 196 } 197 usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL); 198 199 return (0); 200} 201 202static device_method_t octusb_octeon_methods[] = { 203 /* Device interface */ 204 DEVMETHOD(device_identify, octusb_octeon_identify), 205 DEVMETHOD(device_probe, octusb_octeon_probe), 206 DEVMETHOD(device_attach, octusb_octeon_attach), 207 DEVMETHOD(device_detach, octusb_octeon_detach), 208 DEVMETHOD(device_resume, bus_generic_resume), 209 DEVMETHOD(device_suspend, bus_generic_suspend), 210 DEVMETHOD(device_shutdown, bus_generic_shutdown), 211 212 DEVMETHOD_END 213}; 214 215static driver_t octusb_octeon_driver = { 216 .name = "octusb", 217 .methods = octusb_octeon_methods, 218 .size = 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