1205354Simp/*- 2205354Simp * Copyright (c) 2006 M. Warner Losh. All rights reserved. 3205354Simp * Copyright (c) 2009 Andrew Turner. All rights reserved. 4205354Simp * 5205354Simp * Redistribution and use in source and binary forms, with or without 6205354Simp * modification, are permitted provided that the following conditions 7205354Simp * are met: 8205354Simp * 1. Redistributions of source code must retain the above copyright 9205354Simp * notice, this list of conditions and the following disclaimer. 10205354Simp * 2. Redistributions in binary form must reproduce the above copyright 11205354Simp * notice, this list of conditions and the following disclaimer in the 12205354Simp * documentation and/or other materials provided with the distribution. 13205354Simp * 14205354Simp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15205354Simp * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16205354Simp * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17205354Simp * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18205354Simp * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19205354Simp * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20205354Simp * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21205354Simp * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22205354Simp * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23205354Simp * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24205354Simp */ 25205354Simp 26205354Simp#include <sys/cdefs.h> 27205354Simp__FBSDID("$FreeBSD$"); 28205354Simp 29205354Simp#include <sys/stdint.h> 30205354Simp#include <sys/stddef.h> 31205354Simp#include <sys/param.h> 32205354Simp#include <sys/queue.h> 33205354Simp#include <sys/types.h> 34205354Simp#include <sys/systm.h> 35205354Simp#include <sys/kernel.h> 36205354Simp#include <sys/bus.h> 37205354Simp#include <sys/module.h> 38205354Simp#include <sys/lock.h> 39205354Simp#include <sys/mutex.h> 40205354Simp#include <sys/condvar.h> 41205354Simp#include <sys/sysctl.h> 42205354Simp#include <sys/sx.h> 43205354Simp#include <sys/unistd.h> 44205354Simp#include <sys/callout.h> 45205354Simp#include <sys/malloc.h> 46205354Simp#include <sys/priv.h> 47205354Simp 48205354Simp#include <dev/usb/usb.h> 49205354Simp#include <dev/usb/usbdi.h> 50205354Simp 51205354Simp#include <dev/usb/usb_core.h> 52205354Simp#include <dev/usb/usb_busdma.h> 53205354Simp#include <dev/usb/usb_process.h> 54205354Simp#include <dev/usb/usb_util.h> 55205354Simp 56205354Simp#include <dev/usb/usb_controller.h> 57205354Simp#include <dev/usb/usb_bus.h> 58205354Simp#include <dev/usb/controller/ohci.h> 59205354Simp#include <dev/usb/controller/ohcireg.h> 60205354Simp 61205354Simp#include <sys/rman.h> 62205354Simp 63205354Simp#include <arm/s3c2xx0/s3c24x0reg.h> 64205354Simp 65205354Simpstatic device_probe_t ohci_s3c24x0_probe; 66205354Simpstatic device_attach_t ohci_s3c24x0_attach; 67205354Simpstatic device_detach_t ohci_s3c24x0_detach; 68205354Simp 69205354Simpstatic int 70205354Simpohci_s3c24x0_probe(device_t dev) 71205354Simp{ 72205354Simp device_set_desc(dev, "S3C24x0 integrated OHCI controller"); 73205354Simp return (BUS_PROBE_DEFAULT); 74205354Simp} 75205354Simp 76205354Simpstatic int 77205354Simpohci_s3c24x0_attach(device_t dev) 78205354Simp{ 79205354Simp struct ohci_softc *sc = device_get_softc(dev); 80205354Simp int err; 81205354Simp int rid; 82205354Simp 83205354Simp /* initialise some bus fields */ 84205354Simp sc->sc_bus.parent = dev; 85205354Simp sc->sc_bus.devices = sc->sc_devices; 86205354Simp sc->sc_bus.devices_max = OHCI_MAX_DEVICES; 87205354Simp 88205354Simp /* get all DMA memory */ 89205354Simp if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(dev), 90205354Simp &ohci_iterate_hw_softc)) { 91205354Simp return (ENOMEM); 92205354Simp } 93205354Simp 94205354Simp sc->sc_dev = dev; 95205354Simp 96205354Simp rid = 0; 97205354Simp sc->sc_io_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 98205354Simp &rid, RF_ACTIVE); 99205354Simp 100205354Simp if (!(sc->sc_io_res)) { 101205354Simp err = ENOMEM; 102205354Simp goto error; 103205354Simp } 104205354Simp sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 105205354Simp sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 106205354Simp sc->sc_io_size = rman_get_size(sc->sc_io_res); 107205354Simp 108205354Simp rid = 0; 109205354Simp sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 110205354Simp RF_ACTIVE); 111205354Simp if (!(sc->sc_irq_res)) { 112205354Simp goto error; 113205354Simp } 114205354Simp sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); 115205354Simp if (!(sc->sc_bus.bdev)) { 116205354Simp goto error; 117205354Simp } 118205354Simp device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 119205354Simp 120205354Simp strlcpy(sc->sc_vendor, "Samsung", sizeof(sc->sc_vendor)); 121205354Simp 122205354Simp err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 123205354Simp NULL, (void *)ohci_interrupt, sc, &sc->sc_intr_hdl); 124205354Simp if (err) { 125205354Simp sc->sc_intr_hdl = NULL; 126205354Simp goto error; 127205354Simp } 128205354Simp 129205354Simp bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, 130205354Simp OHCI_CONTROL, 0); 131205354Simp 132205354Simp err = ohci_init(sc); 133205354Simp if (!err) { 134205354Simp err = device_probe_and_attach(sc->sc_bus.bdev); 135205354Simp } 136205354Simp if (err) { 137205354Simp goto error; 138205354Simp } 139205354Simp return (0); 140205354Simp 141205354Simperror: 142205354Simp ohci_s3c24x0_detach(dev); 143205354Simp return (ENXIO); 144205354Simp} 145205354Simp 146205354Simpstatic int 147205354Simpohci_s3c24x0_detach(device_t dev) 148205354Simp{ 149205354Simp struct ohci_softc *sc = device_get_softc(dev); 150205354Simp device_t bdev; 151205354Simp int err; 152205354Simp 153205354Simp if (sc->sc_bus.bdev) { 154205354Simp bdev = sc->sc_bus.bdev; 155205354Simp device_detach(bdev); 156205354Simp device_delete_child(dev, bdev); 157205354Simp } 158205354Simp /* during module unload there are lots of children leftover */ 159227849Shselasky device_delete_children(dev); 160205354Simp 161205354Simp /* 162205354Simp * Put the controller into reset, then disable clocks and do 163205354Simp * the MI tear down. We have to disable the clocks/hardware 164205354Simp * after we do the rest of the teardown. We also disable the 165205354Simp * clocks in the opposite order we acquire them, but that 166205354Simp * doesn't seem to be absolutely necessary. We free up the 167205354Simp * clocks after we disable them, so the system could, in 168205354Simp * theory, reuse them. 169205354Simp */ 170205354Simp bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, 171205354Simp OHCI_CONTROL, 0); 172205354Simp 173205354Simp if (sc->sc_irq_res && sc->sc_intr_hdl) { 174205354Simp /* 175205354Simp * only call ohci_detach() after ohci_init() 176205354Simp */ 177205354Simp ohci_detach(sc); 178205354Simp 179205354Simp err = bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl); 180205354Simp sc->sc_intr_hdl = NULL; 181205354Simp } 182205354Simp if (sc->sc_irq_res) { 183205354Simp bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res); 184205354Simp sc->sc_irq_res = NULL; 185205354Simp } 186205354Simp if (sc->sc_io_res) { 187205354Simp bus_release_resource(dev, SYS_RES_MEMORY, 0, 188205354Simp sc->sc_io_res); 189205354Simp sc->sc_io_res = NULL; 190205354Simp } 191205354Simp usb_bus_mem_free_all(&sc->sc_bus, &ohci_iterate_hw_softc); 192205354Simp 193205354Simp return (0); 194205354Simp} 195205354Simp 196205354Simpstatic device_method_t ohci_methods[] = { 197205354Simp /* Device interface */ 198205354Simp DEVMETHOD(device_probe, ohci_s3c24x0_probe), 199205354Simp DEVMETHOD(device_attach, ohci_s3c24x0_attach), 200205354Simp DEVMETHOD(device_detach, ohci_s3c24x0_detach), 201228483Shselasky DEVMETHOD(device_suspend, bus_generic_suspend), 202228483Shselasky DEVMETHOD(device_resume, bus_generic_resume), 203205354Simp DEVMETHOD(device_shutdown, bus_generic_shutdown), 204205354Simp 205227843Smarius DEVMETHOD_END 206205354Simp}; 207205354Simp 208205354Simpstatic driver_t ohci_driver = { 209228483Shselasky .name = "ohci", 210228483Shselasky .methods = ohci_methods, 211228483Shselasky .size = sizeof(struct ohci_softc), 212205354Simp}; 213205354Simp 214205354Simpstatic devclass_t ohci_devclass; 215205354Simp 216205354SimpDRIVER_MODULE(ohci, s3c24x0, ohci_driver, ohci_devclass, 0, 0); 217205354SimpMODULE_DEPEND(ohci, usb, 1, 1, 1); 218