1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2015 Semihalf. 5 * Copyright (c) 2015 Stormshield. 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/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/stdint.h> 34 #include <sys/stddef.h> 35 #include <sys/param.h> 36 #include <sys/queue.h> 37 #include <sys/types.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/bus.h> 41 #include <sys/module.h> 42 #include <sys/lock.h> 43 #include <sys/mutex.h> 44 #include <sys/condvar.h> 45 #include <sys/sysctl.h> 46 #include <sys/sx.h> 47 #include <sys/unistd.h> 48 #include <sys/priv.h> 49 #include <sys/rman.h> 50 51 #include <dev/usb/usb.h> 52 #include <dev/usb/usbdi.h> 53 54 #include <dev/usb/usb_core.h> 55 #include <dev/usb/usb_busdma.h> 56 #include <dev/usb/usb_process.h> 57 #include <dev/usb/usb_util.h> 58 59 #include <dev/usb/usb_controller.h> 60 #include <dev/usb/usb_bus.h> 61 #include <dev/usb/controller/xhci.h> 62 #include <dev/usb/controller/xhcireg.h> 63 64 #include "generic_xhci.h" 65 66 #define IS_DMA_32B 1 67 68 int 69 generic_xhci_attach(device_t dev) 70 { 71 struct xhci_softc *sc = device_get_softc(dev); 72 int err = 0, rid = 0; 73 74 sc->sc_bus.parent = dev; 75 sc->sc_bus.devices = sc->sc_devices; 76 sc->sc_bus.devices_max = XHCI_MAX_DEVICES; 77 78 sc->sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 79 RF_ACTIVE); 80 if (sc->sc_io_res == NULL) { 81 device_printf(dev, "Failed to map memory\n"); 82 generic_xhci_detach(dev); 83 return (ENXIO); 84 } 85 86 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 87 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 88 sc->sc_io_size = rman_get_size(sc->sc_io_res); 89 90 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 91 RF_SHAREABLE | RF_ACTIVE); 92 if (sc->sc_irq_res == NULL) { 93 device_printf(dev, "Failed to allocate IRQ\n"); 94 generic_xhci_detach(dev); 95 return (ENXIO); 96 } 97 98 sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); 99 if (sc->sc_bus.bdev == NULL) { 100 device_printf(dev, "Failed to add USB device\n"); 101 generic_xhci_detach(dev); 102 return (ENXIO); 103 } 104 105 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 106 107 sprintf(sc->sc_vendor, XHCI_HC_VENDOR); 108 device_set_desc(sc->sc_bus.bdev, XHCI_HC_DEVSTR); 109 110 err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 111 NULL, (driver_intr_t *)xhci_interrupt, sc, &sc->sc_intr_hdl); 112 if (err != 0) { 113 device_printf(dev, "Failed to setup error IRQ, %d\n", err); 114 sc->sc_intr_hdl = NULL; 115 generic_xhci_detach(dev); 116 return (err); 117 } 118 119 err = xhci_init(sc, dev, IS_DMA_32B); 120 if (err != 0) { 121 device_printf(dev, "Failed to init XHCI, with error %d\n", err); 122 generic_xhci_detach(dev); 123 return (ENXIO); 124 } 125 126 err = xhci_start_controller(sc); 127 if (err != 0) { 128 device_printf(dev, "Failed to start XHCI controller, with error %d\n", err); 129 generic_xhci_detach(dev); 130 return (ENXIO); 131 } 132 133 err = device_probe_and_attach(sc->sc_bus.bdev); 134 if (err != 0) { 135 device_printf(dev, "Failed to initialize USB, with error %d\n", err); 136 generic_xhci_detach(dev); 137 return (ENXIO); 138 } 139 140 return (0); 141 } 142 143 int 144 generic_xhci_detach(device_t dev) 145 { 146 struct xhci_softc *sc = device_get_softc(dev); 147 int err; 148 149 /* during module unload there are lots of children leftover */ 150 device_delete_children(dev); 151 152 if (sc->sc_irq_res != NULL && sc->sc_intr_hdl != NULL) { 153 err = bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl); 154 if (err != 0) 155 device_printf(dev, "Could not tear down irq, %d\n", 156 err); 157 sc->sc_intr_hdl = NULL; 158 } 159 160 if (sc->sc_irq_res != NULL) { 161 bus_release_resource(dev, SYS_RES_IRQ, 162 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res); 163 sc->sc_irq_res = NULL; 164 } 165 166 if (sc->sc_io_res != NULL) { 167 bus_release_resource(dev, SYS_RES_MEMORY, 168 rman_get_rid(sc->sc_io_res), sc->sc_io_res); 169 sc->sc_io_res = NULL; 170 } 171 172 xhci_uninit(sc); 173 174 return (0); 175 } 176 177 static device_method_t xhci_methods[] = { 178 /* Device interface */ 179 DEVMETHOD(device_attach, generic_xhci_attach), 180 DEVMETHOD(device_detach, generic_xhci_detach), 181 DEVMETHOD(device_suspend, bus_generic_suspend), 182 DEVMETHOD(device_resume, bus_generic_resume), 183 DEVMETHOD(device_shutdown, bus_generic_shutdown), 184 185 DEVMETHOD_END 186 }; 187 188 driver_t generic_xhci_driver = { 189 "xhci", 190 xhci_methods, 191 sizeof(struct xhci_softc), 192 }; 193