musb_otg_atmelarm.c revision 252912
155714Skris/*- 255714Skris * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 355714Skris * 455714Skris * Redistribution and use in source and binary forms, with or without 555714Skris * modification, are permitted provided that the following conditions 655714Skris * are met: 755714Skris * 1. Redistributions of source code must retain the above copyright 8280297Sjkim * notice, this list of conditions and the following disclaimer. 955714Skris * 2. Redistributions in binary form must reproduce the above copyright 1055714Skris * notice, this list of conditions and the following disclaimer in the 1155714Skris * documentation and/or other materials provided with the distribution. 1255714Skris * 1355714Skris * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1455714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15280297Sjkim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1655714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1755714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1855714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 1955714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2055714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2155714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22280297Sjkim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2355714Skris * SUCH DAMAGE. 2455714Skris */ 2555714Skris 2655714Skris#include <sys/cdefs.h> 2755714Skris__FBSDID("$FreeBSD: head/sys/dev/usb/controller/musb_otg_atmelarm.c 252912 2013-07-07 04:18:35Z gonzo $"); 2855714Skris 2955714Skris#include <sys/stdint.h> 3055714Skris#include <sys/stddef.h> 3155714Skris#include <sys/param.h> 3255714Skris#include <sys/queue.h> 3355714Skris#include <sys/types.h> 3455714Skris#include <sys/systm.h> 3555714Skris#include <sys/kernel.h> 3655714Skris#include <sys/bus.h> 37280297Sjkim#include <sys/module.h> 3855714Skris#include <sys/lock.h> 3955714Skris#include <sys/mutex.h> 40280297Sjkim#include <sys/condvar.h> 4155714Skris#include <sys/sysctl.h> 4255714Skris#include <sys/sx.h> 4355714Skris#include <sys/unistd.h> 4455714Skris#include <sys/callout.h> 4555714Skris#include <sys/malloc.h> 4655714Skris#include <sys/priv.h> 4755714Skris 4855714Skris#include <dev/usb/usb.h> 4955714Skris#include <dev/usb/usbdi.h> 5055714Skris 5155714Skris#include <dev/usb/usb_core.h> 52280297Sjkim#include <dev/usb/usb_busdma.h> 5355714Skris#include <dev/usb/usb_process.h> 5455714Skris#include <dev/usb/usb_util.h> 5555714Skris 5655714Skris#include <dev/usb/usb_controller.h> 5755714Skris#include <dev/usb/usb_bus.h> 5855714Skris#include <dev/usb/controller/musb_otg.h> 59280297Sjkim 60280297Sjkim#include <sys/rman.h> 6155714Skris 6255714Skrisstatic device_probe_t musbotg_probe; 6355714Skrisstatic device_attach_t musbotg_attach; 6455714Skrisstatic device_detach_t musbotg_detach; 6555714Skris 6655714Skrisstruct musbotg_super_softc { 67280297Sjkim struct musbotg_softc sc_otg; /* must be first */ 68280297Sjkim}; 69280297Sjkim 70280297Sjkimstatic void 71280297Sjkimmusbotg_vbus_poll(struct musbotg_super_softc *sc) 7255714Skris{ 7355714Skris uint8_t vbus_val = 1; /* fake VBUS on - TODO */ 74280297Sjkim 75280297Sjkim /* just forward it */ 76280297Sjkim musbotg_vbus_interrupt(&sc->sc_otg, vbus_val); 77280297Sjkim} 78280297Sjkim 79280297Sjkimstatic void 80280297Sjkimmusbotg_clocks_on(void *arg) 81280297Sjkim{ 82280297Sjkim#if 0 8355714Skris struct musbotg_super_softc *sc = arg; 8455714Skris 85280297Sjkim#endif 86280297Sjkim} 87280297Sjkim 88280297Sjkimstatic void 89280297Sjkimmusbotg_clocks_off(void *arg) 9055714Skris{ 9155714Skris#if 0 92280297Sjkim struct musbotg_super_softc *sc = arg; 93280297Sjkim 94280297Sjkim#endif 95280297Sjkim} 96280297Sjkim 97280297Sjkimstatic void 98280297Sjkimmusbotg_wrapper_interrupt(void *arg) 99280297Sjkim{ 100280297Sjkim 101280297Sjkim /* 102280297Sjkim * Nothing to do. 10355714Skris * Main driver takes care about everything 104280297Sjkim */ 105280297Sjkim musbotg_interrupt(arg, 0, 0, 0); 10655714Skris} 107280297Sjkim 108280297Sjkimstatic void 109280297Sjkimmusbotg_ep_int_set(struct musbotg_softc *sc, int ep, int on) 110280297Sjkim{ 111280297Sjkim /* 112280297Sjkim * Nothing to do. 113280297Sjkim * Main driver takes care about everything 114280297Sjkim */ 115280297Sjkim} 116280297Sjkim 117280297Sjkimstatic int 118280297Sjkimmusbotg_probe(device_t dev) 11955714Skris{ 120280297Sjkim device_set_desc(dev, "MUSB OTG integrated USB controller"); 121280297Sjkim return (0); 12255714Skris} 123280297Sjkim 124280297Sjkimstatic int 12555714Skrismusbotg_attach(device_t dev) 12655714Skris{ 127280297Sjkim struct musbotg_super_softc *sc = device_get_softc(dev); 12855714Skris int err; 12955714Skris int rid; 130280297Sjkim 13155714Skris /* setup MUSB OTG USB controller interface softc */ 132280297Sjkim sc->sc_otg.sc_clocks_on = &musbotg_clocks_on; 13355714Skris sc->sc_otg.sc_clocks_off = &musbotg_clocks_off; 13455714Skris sc->sc_otg.sc_clocks_arg = sc; 135280297Sjkim 136280297Sjkim /* initialise some bus fields */ 137280297Sjkim sc->sc_otg.sc_bus.parent = dev; 138280297Sjkim sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices; 139280297Sjkim sc->sc_otg.sc_bus.devices_max = MUSB2_MAX_DEVICES; 140280297Sjkim 141280297Sjkim /* get all DMA memory */ 142280297Sjkim if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus, 14355714Skris USB_GET_DMA_TAG(dev), NULL)) { 144280297Sjkim return (ENOMEM); 145280297Sjkim } 146280297Sjkim rid = 0; 147280297Sjkim sc->sc_otg.sc_io_res = 148280297Sjkim bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); 149280297Sjkim 150280297Sjkim if (!(sc->sc_otg.sc_io_res)) { 151280297Sjkim err = ENOMEM; 152280297Sjkim goto error; 153280297Sjkim } 154280297Sjkim sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res); 155280297Sjkim sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res); 15655714Skris sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res); 157280297Sjkim 158280297Sjkim rid = 0; 159280297Sjkim sc->sc_otg.sc_irq_res = 16055714Skris bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 161280297Sjkim if (!(sc->sc_otg.sc_irq_res)) { 162238405Sjkim goto error; 163280297Sjkim } 164280297Sjkim sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1); 165280297Sjkim if (!(sc->sc_otg.sc_bus.bdev)) { 166280297Sjkim goto error; 167280297Sjkim } 168280297Sjkim device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus); 169280297Sjkim 170280297Sjkim sc->sc_otg.sc_id = 0; 171280297Sjkim sc->sc_otg.sc_platform_data = sc; 172280297Sjkim sc->sc_otg.sc_mode = MUSB2_DEVICE_MODE; 173280297Sjkim 174280297Sjkim#if (__FreeBSD_version >= 700031) 175280297Sjkim err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 176280297Sjkim NULL, (driver_intr_t *)musbotg_wrapper_interrupt, sc, &sc->sc_otg.sc_intr_hdl); 177280297Sjkim#else 178280297Sjkim err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 179280297Sjkim (driver_intr_t *)musbotg_wrapper_interrupt, sc, &sc->sc_otg.sc_intr_hdl); 180280297Sjkim#endif 181280297Sjkim if (err) { 182280297Sjkim sc->sc_otg.sc_intr_hdl = NULL; 183280297Sjkim goto error; 184280297Sjkim } 185280297Sjkim err = musbotg_init(&sc->sc_otg); 186280297Sjkim if (!err) { 187280297Sjkim err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev); 188280297Sjkim } 189280297Sjkim if (err) { 190280297Sjkim goto error; 191280297Sjkim } else { 192280297Sjkim /* poll VBUS one time */ 193280297Sjkim musbotg_vbus_poll(sc); 194280297Sjkim } 195280297Sjkim return (0); 196280297Sjkim 197280297Sjkimerror: 198280297Sjkim musbotg_detach(dev); 199280297Sjkim return (ENXIO); 200280297Sjkim} 201280297Sjkim 202280297Sjkimstatic int 203280297Sjkimmusbotg_detach(device_t dev) 204280297Sjkim{ 205280297Sjkim struct musbotg_super_softc *sc = device_get_softc(dev); 206280297Sjkim device_t bdev; 207280297Sjkim int err; 208280297Sjkim 209280297Sjkim if (sc->sc_otg.sc_bus.bdev) { 210280297Sjkim bdev = sc->sc_otg.sc_bus.bdev; 211280297Sjkim device_detach(bdev); 212280297Sjkim device_delete_child(dev, bdev); 213280297Sjkim } 214280297Sjkim /* during module unload there are lots of children leftover */ 215280297Sjkim device_delete_children(dev); 216280297Sjkim 21755714Skris if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) { 218280297Sjkim /* 21955714Skris * only call musbotg_uninit() after musbotg_init() 22055714Skris */ 22155714Skris musbotg_uninit(&sc->sc_otg); 222280297Sjkim 223280297Sjkim err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res, 224280297Sjkim sc->sc_otg.sc_intr_hdl); 225280297Sjkim sc->sc_otg.sc_intr_hdl = NULL; 226280297Sjkim } 227280297Sjkim /* free IRQ channel, if any */ 228280297Sjkim if (sc->sc_otg.sc_irq_res) { 229280297Sjkim bus_release_resource(dev, SYS_RES_IRQ, 0, 230280297Sjkim sc->sc_otg.sc_irq_res); 231280297Sjkim sc->sc_otg.sc_irq_res = NULL; 232280297Sjkim } 233280297Sjkim /* free memory resource, if any */ 234280297Sjkim if (sc->sc_otg.sc_io_res) { 235280297Sjkim bus_release_resource(dev, SYS_RES_MEMORY, 0, 236280297Sjkim sc->sc_otg.sc_io_res); 237280297Sjkim sc->sc_otg.sc_io_res = NULL; 238280297Sjkim } 239280297Sjkim usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL); 24055714Skris 241280297Sjkim return (0); 242280297Sjkim} 243280297Sjkim 244280297Sjkimstatic device_method_t musbotg_methods[] = { 245280297Sjkim /* Device interface */ 246280297Sjkim DEVMETHOD(device_probe, musbotg_probe), 247280297Sjkim DEVMETHOD(device_attach, musbotg_attach), 248280297Sjkim DEVMETHOD(device_detach, musbotg_detach), 249280297Sjkim DEVMETHOD(device_suspend, bus_generic_suspend), 250280297Sjkim DEVMETHOD(device_resume, bus_generic_resume), 251280297Sjkim DEVMETHOD(device_shutdown, bus_generic_shutdown), 252280297Sjkim 253280297Sjkim DEVMETHOD_END 254280297Sjkim}; 255280297Sjkim 256280297Sjkimstatic driver_t musbotg_driver = { 257280297Sjkim .name = "musbotg", 258280297Sjkim .methods = musbotg_methods, 259280297Sjkim .size = sizeof(struct musbotg_super_softc), 260280297Sjkim}; 26155714Skris 26255714Skrisstatic devclass_t musbotg_devclass; 26355714Skris 26455714SkrisDRIVER_MODULE(musbotg, atmelarm, musbotg_driver, musbotg_devclass, 0, 0); 26555714SkrisMODULE_DEPEND(musbotg, usb, 1, 1, 1); 266