Date: Thu, 8 Nov 2012 13:41:42 +0000 (UTC) From: Aleksandr Rybalko <ray@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r242769 - projects/efika_mx/sys/dev/usb/controller Message-ID: <201211081341.qA8DfgEE082890@svn.freebsd.org>
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Author: ray Date: Thu Nov 8 13:41:42 2012 New Revision: 242769 URL: http://svnweb.freebsd.org/changeset/base/242769 Log: Add binding for EHCI inside i.MX515 USB core. Added: projects/efika_mx/sys/dev/usb/controller/ehci_imx.c Added: projects/efika_mx/sys/dev/usb/controller/ehci_imx.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/efika_mx/sys/dev/usb/controller/ehci_imx.c Thu Nov 8 13:41:42 2012 (r242769) @@ -0,0 +1,294 @@ +/*- + * Copyright (c) 2010-2012 Semihalf + * Copyright (c) 2012 The FreeBSD Foundation + * All rights reserved. + * + * Portions of this software were developed by Oleksandr Rybalko + * 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: projects/efika_mx/sys/dev/usb/controller/ehci_fsl.c 236120 2012-05-26 21:05:11Z raj $"); + +#include "opt_bus.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/queue.h> +#include <sys/lock.h> +#include <sys/lockmgr.h> +#include <sys/condvar.h> +#include <sys/rman.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.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 <machine/bus.h> +#include <machine/clock.h> +#include <machine/resource.h> + +#include "opt_platform.h" + +/* Forward declarations */ +static int fsl_ehci_attach(device_t self); +static int fsl_ehci_detach(device_t self); +static int fsl_ehci_probe(device_t self); + +static device_method_t ehci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, fsl_ehci_probe), + DEVMETHOD(device_attach, fsl_ehci_attach), + DEVMETHOD(device_detach, fsl_ehci_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + /* Bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + + { 0, 0 } +}; + +/* kobj_class definition */ +static driver_t ehci_driver = { + "ehci", + ehci_methods, + sizeof(struct ehci_softc) +}; + +static devclass_t ehci_devclass; + +DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0); +MODULE_DEPEND(ehci, usb, 1, 1, 1); + +/* + * Defines location of first EHCI. + */ +/* TODO: enable EHCI2 EHCI3, make driver for OTG */ +#define FSL_EHCI_REG_OFF 0x300 +#define FSL_EHCI_REG_SIZE 0x100 + +/* + * Public methods + */ +static int +fsl_ehci_probe(device_t dev) +{ + + if (ofw_bus_is_compatible(dev, "fsl,usb-4core") == 0) + return (ENXIO); + + device_set_desc(dev, "Freescale integrated USB controller"); + + return (BUS_PROBE_DEFAULT); +} + +static int +fsl_ehci_attach(device_t self) +{ + ehci_softc_t *sc; + int rid; + int err; + bus_space_handle_t ioh; + bus_space_tag_t iot; + + sc = device_get_softc(self); + rid = 0; + + sc->sc_bus.parent = self; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = EHCI_MAX_DEVICES; + + if (usb_bus_mem_alloc_all(&sc->sc_bus, + USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) + return (ENOMEM); + + /* Allocate io resource for EHCI */ + sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, + RF_ACTIVE); + if (sc->sc_io_res == NULL) { + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (ENXIO); + } + iot = rman_get_bustag(sc->sc_io_res); + + /* + * Set handle to USB related registers subregion used by generic + * EHCI driver + */ + ioh = rman_get_bushandle(sc->sc_io_res); + + err = bus_space_subregion(iot, ioh, FSL_EHCI_REG_OFF, FSL_EHCI_REG_SIZE, + &sc->sc_io_hdl); + if (err != 0) { + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (ENXIO); + } + + sc->sc_io_tag = iot; + + /* Allocate irq */ + sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, + RF_ACTIVE); + if (sc->sc_irq_res == NULL) { + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (ENXIO); + } + + /* Setup interrupt handler */ + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO, + 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; + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (ENXIO); + } + + /* Add USB device */ + sc->sc_bus.bdev = device_add_child(self, "usbus", -1); + if (!sc->sc_bus.bdev) { + device_printf(self, "Could not add USB device\n"); + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (ENOMEM); + } + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + + sc->sc_id_vendor = 0x1234; + strlcpy(sc->sc_vendor, "Freescale", sizeof(sc->sc_vendor)); + + /* Set flags */ + sc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM; + + err = ehci_init(sc); + if (!err) { + sc->sc_flags |= EHCI_SCFLG_DONEINIT; + err = device_probe_and_attach(sc->sc_bus.bdev); + } + + if (err) { + device_printf(self, "USB init failed err=%d\n", err); + err = fsl_ehci_detach(self); + if (err) { + device_printf(self, + "Detach of the driver failed with error %d\n", + err); + } + return (EIO); + } + + return (0); +} + +static int +fsl_ehci_detach(device_t self) +{ + + int err; + ehci_softc_t *sc; + + sc = device_get_softc(self); + /* + * only call ehci_detach() after ehci_init() + */ + if (sc->sc_flags & EHCI_SCFLG_DONEINIT) { + ehci_detach(sc); + sc->sc_flags &= ~EHCI_SCFLG_DONEINIT; + } + + /* Disable interrupts that might have been switched on in ehci_init */ + if (sc->sc_io_tag && sc->sc_io_hdl) + bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, EHCI_USBINTR, 0); + + if (sc->sc_irq_res && sc->sc_intr_hdl) { + err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); + if (err) { + device_printf(self, "Could not tear down irq, %d\n", + err); + return (err); + } + sc->sc_intr_hdl = NULL; + } + + if (sc->sc_bus.bdev) { + device_delete_child(self, sc->sc_bus.bdev); + sc->sc_bus.bdev = NULL; + } + + /* During module unload there are lots of children leftover */ + device_delete_children(self); + + 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; + sc->sc_io_tag = 0; + sc->sc_io_hdl = 0; + } + + return (0); +}
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