Date: Fri, 16 May 2014 10:35:22 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r266215 - head/sys/dev/usb/controller Message-ID: <201405161035.s4GAZMBh064791@svn.freebsd.org>
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Author: hselasky Date: Fri May 16 10:35:21 2014 New Revision: 266215 URL: http://svnweb.freebsd.org/changeset/base/266215 Log: - Add flattended device tree probe-, attach- and detach code for the SAF1761 driver, compatible to existing Linux based FDT tables for the same hardware. Sponsored by: DARPA, AFRL Modified: head/sys/dev/usb/controller/saf1761_dci_fdt.c Modified: head/sys/dev/usb/controller/saf1761_dci_fdt.c ============================================================================== --- head/sys/dev/usb/controller/saf1761_dci_fdt.c Fri May 16 10:30:30 2014 (r266214) +++ head/sys/dev/usb/controller/saf1761_dci_fdt.c Fri May 16 10:35:21 2014 (r266215) @@ -50,6 +50,13 @@ #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> @@ -68,3 +75,179 @@ #include <dev/usb/controller/saf1761_dci.h> #include <dev/usb/controller/saf1761_dci_reg.h> + +static device_probe_t saf1761_dci_fdt_probe; +static device_attach_t saf1761_dci_fdt_attach; +static device_detach_t saf1761_dci_fdt_detach; + +static device_method_t saf1761_dci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, saf1761_dci_fdt_probe), + DEVMETHOD(device_attach, saf1761_dci_fdt_attach), + DEVMETHOD(device_detach, saf1761_dci_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_dci_driver = { + .name = "saf1761", + .methods = saf1761_dci_methods, + .size = sizeof(struct saf1761_dci_softc), +}; + +static devclass_t saf1761_dci_devclass; + +DRIVER_MODULE(saf1761, simplebus, saf1761_dci_driver, saf1761_dci_devclass, 0, 0); +MODULE_DEPEND(saf1761, usb, 1, 1, 1); + +static int +saf1761_dci_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_dci_fdt_attach(device_t dev) +{ + struct saf1761_dci_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; + } + + /* initialise some bus fields */ + sc->sc_bus.parent = dev; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = SOTG_MAX_DEVICES; + + /* 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_IOPORT, &rid, RF_ACTIVE); + + if (!sc->sc_io_res) { + 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(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)) { + goto error; + } + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + + err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (driver_intr_t *)saf1761_dci_interrupt, sc, &sc->sc_intr_hdl); + if (err) { + sc->sc_intr_hdl = NULL; + goto error; + } + err = saf1761_dci_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_dci_fdt_detach(dev); + return (ENXIO); +} + +static int +saf1761_dci_fdt_detach(device_t dev) +{ + struct saf1761_dci_softc *sc = device_get_softc(dev); + device_t bdev; + int err; + + if (sc->sc_bus.bdev) { + bdev = sc->sc_bus.bdev; + device_detach(bdev); + device_delete_child(dev, bdev); + } + /* 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_dci_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_IOPORT, 0, + sc->sc_io_res); + sc->sc_io_res = NULL; + } + usb_bus_mem_free_all(&sc->sc_bus, NULL); + + return (0); +}
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