diff options
Diffstat (limited to 'sys/dev/usb/controller/musb_otg_atmelarm.c')
| -rw-r--r-- | sys/dev/usb/controller/musb_otg_atmelarm.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/sys/dev/usb/controller/musb_otg_atmelarm.c b/sys/dev/usb/controller/musb_otg_atmelarm.c new file mode 100644 index 000000000000..76524246a9ee --- /dev/null +++ b/sys/dev/usb/controller/musb_otg_atmelarm.c @@ -0,0 +1,239 @@ +/* $FreeBSD$ */ +/*- + * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <dev/usb/usb_mfunc.h> +#include <dev/usb/usb_defs.h> +#include <dev/usb/usb.h> + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_sw_transfer.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/usb_controller.h> +#include <dev/usb/usb_bus.h> +#include <dev/usb/controller/mus2_otg.h> + +#include <sys/rman.h> + +static device_probe_t musbotg_probe; +static device_attach_t musbotg_attach; +static device_detach_t musbotg_detach; +static device_shutdown_t musbotg_shutdown; + +struct musbotg_super_softc { + struct musbotg_softc sc_otg; /* must be first */ +}; + +static void +musbotg_vbus_poll(struct musbotg_super_softc *sc) +{ + uint8_t vbus_val = 1; /* fake VBUS on - TODO */ + + /* just forward it */ + musbotg_vbus_interrupt(&sc->sc_otg, vbus_val); +} + +static void +musbotg_clocks_on(void *arg) +{ +#if 0 + struct musbotg_super_softc *sc = arg; + +#endif +} + +static void +musbotg_clocks_off(void *arg) +{ +#if 0 + struct musbotg_super_softc *sc = arg; + +#endif +} + +static int +musbotg_probe(device_t dev) +{ + device_set_desc(dev, "MUSB OTG integrated USB controller"); + return (0); +} + +static int +musbotg_attach(device_t dev) +{ + struct musbotg_super_softc *sc = device_get_softc(dev); + int err; + int rid; + + /* setup MUSB OTG USB controller interface softc */ + sc->sc_otg.sc_clocks_on = &musbotg_clocks_on; + sc->sc_otg.sc_clocks_off = &musbotg_clocks_off; + sc->sc_otg.sc_clocks_arg = sc; + + /* initialise some bus fields */ + sc->sc_otg.sc_bus.parent = dev; + sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices; + sc->sc_otg.sc_bus.devices_max = MUSB2_MAX_DEVICES; + + /* get all DMA memory */ + if (usb2_bus_mem_alloc_all(&sc->sc_otg.sc_bus, + USB_GET_DMA_TAG(dev), NULL)) { + return (ENOMEM); + } + rid = 0; + sc->sc_otg.sc_io_res = + bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); + + if (!(sc->sc_otg.sc_io_res)) { + err = ENOMEM; + goto error; + } + sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res); + sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res); + sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res); + + rid = 0; + sc->sc_otg.sc_irq_res = + bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); + if (!(sc->sc_otg.sc_irq_res)) { + goto error; + } + sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1); + if (!(sc->sc_otg.sc_bus.bdev)) { + goto error; + } + device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus); + +#if (__FreeBSD_version >= 700031) + err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (void *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl); +#else + err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + (void *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl); +#endif + if (err) { + sc->sc_otg.sc_intr_hdl = NULL; + goto error; + } + err = musbotg_init(&sc->sc_otg); + if (!err) { + err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev); + } + if (err) { + goto error; + } else { + /* poll VBUS one time */ + musbotg_vbus_poll(sc); + } + return (0); + +error: + musbotg_detach(dev); + return (ENXIO); +} + +static int +musbotg_detach(device_t dev) +{ + struct musbotg_super_softc *sc = device_get_softc(dev); + device_t bdev; + int err; + + if (sc->sc_otg.sc_bus.bdev) { + bdev = sc->sc_otg.sc_bus.bdev; + device_detach(bdev); + device_delete_child(dev, bdev); + } + /* during module unload there are lots of children leftover */ + device_delete_all_children(dev); + + if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) { + /* + * only call musbotg_uninit() after musbotg_init() + */ + musbotg_uninit(&sc->sc_otg); + + err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res, + sc->sc_otg.sc_intr_hdl); + sc->sc_otg.sc_intr_hdl = NULL; + } + /* free IRQ channel, if any */ + if (sc->sc_otg.sc_irq_res) { + bus_release_resource(dev, SYS_RES_IRQ, 0, + sc->sc_otg.sc_irq_res); + sc->sc_otg.sc_irq_res = NULL; + } + /* free memory resource, if any */ + if (sc->sc_otg.sc_io_res) { + bus_release_resource(dev, SYS_RES_MEMORY, 0, + sc->sc_otg.sc_io_res); + sc->sc_otg.sc_io_res = NULL; + } + usb2_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL); + + return (0); +} + +static int +musbotg_shutdown(device_t dev) +{ + struct musbotg_super_softc *sc = device_get_softc(dev); + int err; + + err = bus_generic_shutdown(dev); + if (err) + return (err); + + musbotg_uninit(&sc->sc_otg); + + return (0); +} + +static device_method_t musbotg_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, musbotg_probe), + DEVMETHOD(device_attach, musbotg_attach), + DEVMETHOD(device_detach, musbotg_detach), + DEVMETHOD(device_shutdown, musbotg_shutdown), + + /* Bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + + {0, 0} +}; + +static driver_t musbotg_driver = { + "musbotg", + musbotg_methods, + sizeof(struct musbotg_super_softc), +}; + +static devclass_t musbotg_devclass; + +DRIVER_MODULE(musbotg, atmelarm, musbotg_driver, musbotg_devclass, 0, 0); +MODULE_DEPEND(musbotg, usb, 1, 1, 1); |