Author: andrew Date: Fri Jul 29 08:50:36 2016 New Revision: 303475 URL: https://svnweb.freebsd.org/changeset/base/303475
Log: Add a generic EHCI USB driver based on the Allwinner A10 driver. It is ACPI only for now, but wouldn't be too difficult to add support for FDT. Reviewed by: hselasky Obtained from: ABT Systems Ltd MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D7352 Added: head/sys/dev/usb/controller/generic_ehci.c (contents, props changed) Modified: head/sys/arm64/conf/GENERIC head/sys/conf/files.arm64 Modified: head/sys/arm64/conf/GENERIC ============================================================================== --- head/sys/arm64/conf/GENERIC Fri Jul 29 06:22:11 2016 (r303474) +++ head/sys/arm64/conf/GENERIC Fri Jul 29 08:50:36 2016 (r303475) @@ -131,6 +131,7 @@ device pl011 options USB_DEBUG # enable debug msgs device dwcotg # DWC OTG controller device ohci # OHCI PCI->USB interface +device ehci # EHCI PCI->USB interface (USB 2.0) device xhci # XHCI PCI->USB interface (USB 3.0) device usb # USB Bus (required) device ukbd # Keyboard Modified: head/sys/conf/files.arm64 ============================================================================== --- head/sys/conf/files.arm64 Fri Jul 29 06:22:11 2016 (r303474) +++ head/sys/conf/files.arm64 Fri Jul 29 08:50:36 2016 (r303475) @@ -69,6 +69,7 @@ dev/psci/psci_arm64.S optional psci dev/uart/uart_cpu_fdt.c optional uart fdt dev/uart/uart_dev_pl011.c optional uart pl011 dev/usb/controller/dwc_otg_hisi.c optional dwcotg fdt soc_hisi_hi6220 +dev/usb/controller/generic_ehci.c optional ehci acpi dev/usb/controller/generic_ohci.c optional ohci fdt dev/usb/controller/generic_usb_if.m optional ohci fdt dev/vnic/mrml_bridge.c optional vnic fdt Added: head/sys/dev/usb/controller/generic_ehci.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/dev/usb/controller/generic_ehci.c Fri Jul 29 08:50:36 2016 (r303475) @@ -0,0 +1,220 @@ +/*- + * Copyright (c) 2012 Ganbold Tsagaankhuu <ganb...@freebsd.org> + * Copyright (c) 2016 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Andrew Turner under + * sponsorship from the FreeBSD Foundation. + * + * 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. + */ + +/* + * Generic EHCI driver based on the Allwinner A10 EHCI driver + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "opt_bus.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/rman.h> +#include <sys/condvar.h> +#include <sys/kernel.h> +#include <sys/module.h> + +#include <machine/bus.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/usb_controller.h> +#include <dev/usb/usb_bus.h> +#include <dev/usb/controller/ehci.h> +#include <dev/usb/controller/ehcireg.h> + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <dev/acpica/acpivar.h> + +static device_attach_t generic_ehci_attach; +static device_detach_t generic_ehci_detach; + +static int +generic_ehci_probe(device_t self) +{ + ACPI_HANDLE h; + + if ((h = acpi_get_handle(self)) == NULL || + !acpi_MatchHid(h, "PNP0D20")) + return (ENXIO); + + device_set_desc(self, "Generic EHCI Controller"); + return (BUS_PROBE_DEFAULT); +} + +static int +generic_ehci_attach(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + int err; + int rid; + + /* initialise some bus fields */ + sc->sc_bus.parent = self; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = EHCI_MAX_DEVICES; + sc->sc_bus.dma_bits = 32; + + /* get all DMA memory */ + if (usb_bus_mem_alloc_all(&sc->sc_bus, + USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { + return (ENOMEM); + } + + sc->sc_bus.usbrev = USB_REV_2_0; + + rid = 0; + sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, + RF_ACTIVE); + if (!sc->sc_io_res) { + device_printf(self, "Could not map memory\n"); + goto error; + } + + sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); + sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); + sc->sc_io_size = rman_get_size(sc->sc_io_res); + + rid = 0; + sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, + RF_SHAREABLE | RF_ACTIVE); + if (sc->sc_irq_res == NULL) { + device_printf(self, "Could not allocate irq\n"); + goto error; + } + sc->sc_bus.bdev = device_add_child(self, "usbus", -1); + if (!sc->sc_bus.bdev) { + device_printf(self, "Could not add USB device\n"); + goto error; + } + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + + strlcpy(sc->sc_vendor, "Generic", sizeof(sc->sc_vendor)); + + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); + if (err) { + device_printf(self, "Could not setup irq, %d\n", err); + sc->sc_intr_hdl = NULL; + goto error; + } + + sc->sc_flags |= EHCI_SCFLG_DONTRESET; + + err = ehci_init(sc); + if (!err) + err = device_probe_and_attach(sc->sc_bus.bdev); + if (err) + goto error; + + return (0); + +error: + generic_ehci_detach(self); + return (ENXIO); +} + +static int +generic_ehci_detach(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + device_t bdev; + int err; + + if (sc->sc_bus.bdev) { + bdev = sc->sc_bus.bdev; + device_detach(bdev); + device_delete_child(self, bdev); + } + /* during module unload there are lots of children leftover */ + device_delete_children(self); + + if (sc->sc_irq_res && sc->sc_intr_hdl) { + /* + * only call ehci_detach() after ehci_init() + */ + ehci_detach(sc); + + err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); + + if (err) + /* XXX or should we panic? */ + device_printf(self, "Could not tear down irq, %d\n", + err); + sc->sc_intr_hdl = NULL; + } + + if (sc->sc_irq_res) { + bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); + sc->sc_irq_res = NULL; + } + if (sc->sc_io_res) { + bus_release_resource(self, SYS_RES_MEMORY, 0, + sc->sc_io_res); + sc->sc_io_res = NULL; + } + usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); + + return (0); +} + +static device_method_t ehci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, generic_ehci_probe), + DEVMETHOD(device_attach, generic_ehci_attach), + DEVMETHOD(device_detach, generic_ehci_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + DEVMETHOD_END +}; + +static driver_t ehci_driver = { + .name = "ehci", + .methods = ehci_methods, + .size = sizeof(ehci_softc_t), +}; + +static devclass_t ehci_devclass; + +DRIVER_MODULE(ehci, acpi, ehci_driver, ehci_devclass, 0, 0); +MODULE_DEPEND(ehci, usb, 1, 1, 1); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
