dwc_otg: Port to RTEMS

1 files changed, 156 insertions, 0 deletions

diff --git a/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c b/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c
new file mode 100644
index 00000000..0c49806b
--- /dev/null
+++ b/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c
@@ -0,0 +1,156 @@
+/*-
+ * Copyright (c) 2012 Hans Petter Selasky.
+ * Copyright (c) 2015 embedded brains GmbH.
+ * 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 <machine/rtems-bsd-kernel-space.h>
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <rtems/bsd/sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/condvar.h>
+#include <sys/kernel.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/rman.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/dwc_otg.h>
+
+static device_probe_t dwc_otg_probe;
+static device_detach_t dwc_otg_detach;
+
+static int
+dwc_otg_probe(device_t dev)
+{
+
+	device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
+
+	return (BUS_PROBE_DEFAULT);
+}
+
+int
+dwc_otg_attach(device_t dev)
+{
+	struct dwc_otg_softc *sc = device_get_softc(dev);
+	char usb_mode[24];
+	int err;
+	int rid;
+
+	/* initialise some bus fields */
+	sc->sc_bus.parent = dev;
+	sc->sc_bus.devices = sc->sc_devices;
+	sc->sc_bus.devices_max = DWC_OTG_MAX_DEVICES;
+	sc->sc_bus.dma_bits = 32;
+
+	/* force USB host mode */
+	sc->sc_mode = DWC_MODE_HOST;
+
+	/* 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)) {
+		err = ENOMEM;
+		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_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,
+	    &dwc_otg_filter_interrupt, &dwc_otg_interrupt, sc, &sc->sc_intr_hdl);
+	if (err) {
+		sc->sc_intr_hdl = NULL;
+		goto error;
+	}
+	err = dwc_otg_init(sc);
+	if (err == 0) {
+		err = device_probe_and_attach(sc->sc_bus.bdev);
+	}
+	if (err)
+		goto error;
+
+
+	return (0);
+
+error:
+	return (ENXIO);
+}
+
+
+static device_method_t dwc_otg_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, dwc_otg_probe),
+	DEVMETHOD(device_attach, dwc_otg_attach),
+	DEVMETHOD(device_suspend, bus_generic_suspend),
+	DEVMETHOD(device_resume, bus_generic_resume),
+	DEVMETHOD(device_shutdown, bus_generic_shutdown),
+
+	DEVMETHOD_END
+};
+
+driver_t dwc_otg_driver = {
+	.name = "dwcotg",
+	.methods = dwc_otg_methods,
+	.size = sizeof(struct dwc_otg_softc),
+};
+
+static devclass_t dwc_otg_devclass;
+
+DRIVER_MODULE(dwcotg, nexus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
+MODULE_DEPEND(dwcotg, usb, 1, 1, 1);