1#include <sys/cdefs.h> 2__FBSDID("$FreeBSD$"); 3 4/*- 5 * Copyright (c) 2008 Hans Petter Selasky <hselasky@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/stdint.h> 31#include <sys/stddef.h> 32#include <sys/param.h> 33#include <sys/queue.h> 34#include <sys/types.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/bus.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 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#include <dev/usb/controller/uss820dci.h> 60 61#include <sys/rman.h> 62 63static device_probe_t uss820_atmelarm_probe; 64static device_attach_t uss820_atmelarm_attach; 65static device_detach_t uss820_atmelarm_detach; 66 67static device_method_t uss820dci_methods[] = { 68 /* Device interface */ 69 DEVMETHOD(device_probe, uss820_atmelarm_probe), 70 DEVMETHOD(device_attach, uss820_atmelarm_attach), 71 DEVMETHOD(device_detach, uss820_atmelarm_detach), 72 DEVMETHOD(device_suspend, bus_generic_suspend), 73 DEVMETHOD(device_resume, bus_generic_resume), 74 DEVMETHOD(device_shutdown, bus_generic_shutdown), 75 76 DEVMETHOD_END 77}; 78 79static driver_t uss820dci_driver = { 80 .name = "uss820", 81 .methods = uss820dci_methods, 82 .size = sizeof(struct uss820dci_softc), 83}; 84 85static devclass_t uss820dci_devclass; 86 87DRIVER_MODULE(uss820, atmelarm, uss820dci_driver, uss820dci_devclass, 0, 0); 88MODULE_DEPEND(uss820, usb, 1, 1, 1); 89 90static const char *const uss820_desc = "USS820 USB Device Controller"; 91 92static int 93uss820_atmelarm_probe(device_t dev) 94{ 95 device_set_desc(dev, uss820_desc); 96 return (0); /* success */ 97} 98 99static int 100uss820_atmelarm_attach(device_t dev) 101{ 102 struct uss820dci_softc *sc = device_get_softc(dev); 103 int err; 104 int rid; 105 106 /* initialise some bus fields */ 107 sc->sc_bus.parent = dev; 108 sc->sc_bus.devices = sc->sc_devices; 109 sc->sc_bus.devices_max = USS820_MAX_DEVICES; 110 111 /* get all DMA memory */ 112 if (usb_bus_mem_alloc_all(&sc->sc_bus, 113 USB_GET_DMA_TAG(dev), NULL)) { 114 return (ENOMEM); 115 } 116 rid = 0; 117 sc->sc_io_res = 118 bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); 119 120 if (!sc->sc_io_res) { 121 goto error; 122 } 123 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 124 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 125 sc->sc_io_size = rman_get_size(sc->sc_io_res); 126 127 rid = 0; 128 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 129 RF_SHAREABLE | RF_ACTIVE); 130 if (sc->sc_irq_res == NULL) { 131 goto error; 132 } 133 sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); 134 if (!(sc->sc_bus.bdev)) { 135 goto error; 136 } 137 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 138 139#if (__FreeBSD_version >= 700031) 140 err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 141 NULL, (driver_intr_t *)uss820dci_interrupt, sc, &sc->sc_intr_hdl); 142#else 143 err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 144 (driver_intr_t *)uss820dci_interrupt, sc, &sc->sc_intr_hdl); 145#endif 146 if (err) { 147 sc->sc_intr_hdl = NULL; 148 goto error; 149 } 150 err = uss820dci_init(sc); 151 if (err) { 152 device_printf(dev, "Init failed\n"); 153 goto error; 154 } 155 err = device_probe_and_attach(sc->sc_bus.bdev); 156 if (err) { 157 device_printf(dev, "USB probe and attach failed\n"); 158 goto error; 159 } 160 return (0); 161 162error: 163 uss820_atmelarm_detach(dev); 164 return (ENXIO); 165} 166 167static int 168uss820_atmelarm_detach(device_t dev) 169{ 170 struct uss820dci_softc *sc = device_get_softc(dev); 171 device_t bdev; 172 int err; 173 174 if (sc->sc_bus.bdev) { 175 bdev = sc->sc_bus.bdev; 176 device_detach(bdev); 177 device_delete_child(dev, bdev); 178 } 179 /* during module unload there are lots of children leftover */ 180 device_delete_children(dev); 181 182 if (sc->sc_irq_res && sc->sc_intr_hdl) { 183 /* 184 * only call at91_udp_uninit() after at91_udp_init() 185 */ 186 uss820dci_uninit(sc); 187 188 err = bus_teardown_intr(dev, sc->sc_irq_res, 189 sc->sc_intr_hdl); 190 sc->sc_intr_hdl = NULL; 191 } 192 if (sc->sc_irq_res) { 193 bus_release_resource(dev, SYS_RES_IRQ, 0, 194 sc->sc_irq_res); 195 sc->sc_irq_res = NULL; 196 } 197 if (sc->sc_io_res) { 198 bus_release_resource(dev, SYS_RES_IOPORT, 0, 199 sc->sc_io_res); 200 sc->sc_io_res = NULL; 201 } 202 usb_bus_mem_free_all(&sc->sc_bus, NULL); 203 204 return (0); 205} 206