diff options
Diffstat (limited to 'freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c')
| -rw-r--r-- | freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c b/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c new file mode 100644 index 00000000..c1e8ff80 --- /dev/null +++ b/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c @@ -0,0 +1,271 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/* $FreeBSD$ */ +/*- + * Copyright (c) 2014 Hans Petter Selasky <hselasky@FreeBSD.org> + * All rights reserved. + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) + * ("CTSRD"), as part of the DARPA CRASH research programme. + * + * 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. + */ + +#ifdef USB_GLOBAL_INCLUDE_FILE +#include USB_GLOBAL_INCLUDE_FILE +#else +#include <sys/stdint.h> +#include <sys/stddef.h> +#include <rtems/bsd/sys/param.h> +#include <sys/queue.h> +#include <sys/types.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/bus.h> +#include <sys/module.h> +#include <rtems/bsd/sys/lock.h> +#include <sys/mutex.h> +#include <sys/condvar.h> +#include <sys/sysctl.h> +#include <sys/sx.h> +#include <rtems/bsd/sys/unistd.h> +#include <sys/callout.h> +#include <sys/malloc.h> +#include <sys/priv.h> +#include <sys/rman.h> + +#include <dev/fdt/fdt_common.h> + +#include <dev/ofw/openfirm.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_transfer.h> +#include <dev/usb/usb_device.h> +#include <dev/usb/usb_hub.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/usb_controller.h> +#include <dev/usb/usb_bus.h> +#endif /* USB_GLOBAL_INCLUDE_FILE */ + +#include <dev/usb/controller/saf1761_otg.h> +#include <dev/usb/controller/saf1761_otg_reg.h> + +static device_probe_t saf1761_otg_fdt_probe; +static device_attach_t saf1761_otg_fdt_attach; +static device_detach_t saf1761_otg_fdt_detach; + +static device_method_t saf1761_otg_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, saf1761_otg_fdt_probe), + DEVMETHOD(device_attach, saf1761_otg_fdt_attach), + DEVMETHOD(device_detach, saf1761_otg_fdt_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + DEVMETHOD_END +}; + +static driver_t saf1761_otg_driver = { + .name = "saf1761otg", + .methods = saf1761_otg_methods, + .size = sizeof(struct saf1761_otg_softc), +}; + +static devclass_t saf1761_otg_devclass; + +DRIVER_MODULE(saf1761otg, simplebus, saf1761_otg_driver, saf1761_otg_devclass, 0, 0); +MODULE_DEPEND(saf1761otg, usb, 1, 1, 1); + +static int +saf1761_otg_fdt_probe(device_t dev) +{ + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (!ofw_bus_is_compatible(dev, "nxp,usb-isp1761")) + return (ENXIO); + + device_set_desc(dev, "ISP1761/SAF1761 DCI USB 2.0 Device Controller"); + + return (0); +} + +static int +saf1761_otg_fdt_attach(device_t dev) +{ + struct saf1761_otg_softc *sc = device_get_softc(dev); + char param[24]; + int err; + int rid; + + /* get configuration from FDT */ + + /* get bus-width, if any */ + if (OF_getprop(ofw_bus_get_node(dev), "bus-width", + ¶m, sizeof(param)) > 0) { + param[sizeof(param) - 1] = 0; + if (strcmp(param, "32") == 0) + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_DATA_BUS_WIDTH; + } else { + /* assume 32-bit data bus */ + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_DATA_BUS_WIDTH; + } + + /* get analog over-current setting */ + if (OF_getprop(ofw_bus_get_node(dev), "analog-oc", + ¶m, sizeof(param)) > 0) { + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_ANA_DIGI_OC; + } + + /* get DACK polarity */ + if (OF_getprop(ofw_bus_get_node(dev), "dack-polarity", + ¶m, sizeof(param)) > 0) { + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_DACK_POL; + } + + /* get DREQ polarity */ + if (OF_getprop(ofw_bus_get_node(dev), "dreq-polarity", + ¶m, sizeof(param)) > 0) { + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_DREQ_POL; + } + + /* get IRQ polarity */ + if (OF_getprop(ofw_bus_get_node(dev), "int-polarity", + ¶m, sizeof(param)) > 0) { + sc->sc_interrupt_cfg |= SOTG_INTERRUPT_CFG_INTPOL; + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_INTR_POL; + } + + /* get IRQ level triggering */ + if (OF_getprop(ofw_bus_get_node(dev), "int-level", + ¶m, sizeof(param)) > 0) { + sc->sc_interrupt_cfg |= SOTG_INTERRUPT_CFG_INTLVL; + sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_INTR_LEVEL; + } + + /* initialise some bus fields */ + sc->sc_bus.parent = dev; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = SOTG_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(dev), NULL)) { + return (ENOMEM); + } + rid = 0; + sc->sc_io_res = + bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); + + if (sc->sc_io_res == NULL) + 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); + + /* try to allocate the HC interrupt first */ + rid = 1; + sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, + RF_SHAREABLE | RF_ACTIVE); + if (sc->sc_irq_res == NULL) { + /* try to allocate a common IRQ second */ + rid = 0; + sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, + RF_SHAREABLE | RF_ACTIVE); + if (sc->sc_irq_res == NULL) + goto error; + } + + sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); + if (sc->sc_bus.bdev == NULL) + goto error; + + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + + err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE, + &saf1761_otg_filter_interrupt, &saf1761_otg_interrupt, sc, &sc->sc_intr_hdl); + if (err) { + sc->sc_intr_hdl = NULL; + goto error; + } + err = saf1761_otg_init(sc); + if (err) { + device_printf(dev, "Init failed\n"); + goto error; + } + err = device_probe_and_attach(sc->sc_bus.bdev); + if (err) { + device_printf(dev, "USB probe and attach failed\n"); + goto error; + } + return (0); + +error: + saf1761_otg_fdt_detach(dev); + return (ENXIO); +} + +static int +saf1761_otg_fdt_detach(device_t dev) +{ + struct saf1761_otg_softc *sc = device_get_softc(dev); + int err; + + /* during module unload there are lots of children leftover */ + device_delete_children(dev); + + if (sc->sc_irq_res && sc->sc_intr_hdl) { + /* + * Only call uninit() after init() + */ + saf1761_otg_uninit(sc); + + err = bus_teardown_intr(dev, sc->sc_irq_res, + sc->sc_intr_hdl); + sc->sc_intr_hdl = NULL; + } + if (sc->sc_irq_res) { + bus_release_resource(dev, SYS_RES_IRQ, 0, + sc->sc_irq_res); + sc->sc_irq_res = NULL; + } + if (sc->sc_io_res) { + bus_release_resource(dev, SYS_RES_MEMORY, 0, + sc->sc_io_res); + sc->sc_io_res = NULL; + } + usb_bus_mem_free_all(&sc->sc_bus, NULL); + + return (0); +} |