dwc_otg: Port to RTEMS

libbsd.py

@@ -118,6 +118,7 @@ def rtems(mm):
             'pppd/utils.c',
             'sys/dev/usb/controller/ehci_mpc83xx.c',
             'sys/dev/usb/controller/ohci_lpc.c',
+            'sys/dev/usb/controller/dwc_otg_nexus.c',
             'sys/dev/usb/controller/usb_otg_transceiver.c',
             'sys/dev/usb/controller/usb_otg_transceiver_dump.c',
             'sys/dev/smc/if_smc_nexus.c',
@@ -472,6 +473,8 @@ def dev_usb_controller(mm):
             'sys/dev/usb/controller/ehcireg.h',
             'sys/dev/usb/controller/uhcireg.h',
             'sys/dev/usb/controller/xhcireg.h',
+            'sys/dev/usb/controller/dwc_otg.h',
+            'sys/dev/usb/controller/dwc_otgreg.h',
         ]
     )
     mod.addKernelSpaceSourceFiles(
@@ -479,6 +482,7 @@ def dev_usb_controller(mm):
             'sys/dev/usb/controller/ohci.c',
             'sys/dev/usb/controller/ehci.c',
             'sys/dev/usb/controller/usb_controller.c',
+            'sys/dev/usb/controller/dwc_otg.c',
         ],
 	mm.generator['source']()
     )

rtemsbsd/include/bsp/nexus-devices.h

@@ -115,6 +115,25 @@ RTEMS_BSD_DEFINE_NEXUS_DEVICE(dw_mmc, 0, 0, NULL);
 SYSINIT_DRIVER_REFERENCE(mmc, dw_mmc);
 SYSINIT_DRIVER_REFERENCE(mmcsd, mmc);
 
+static const rtems_bsd_device_resource dwcotg0_res[] = {
+	{
+		.type = RTEMS_BSD_RES_MEMORY,
+		.start_request = 0,
+		.start_actual = (unsigned long)ALT_USB1_ADDR
+	}, {
+		.type = RTEMS_BSD_RES_IRQ,
+		.start_request = 0,
+		.start_actual = ALT_INT_INTERRUPT_USB1_IRQ
+	}
+};
+
+RTEMS_BSD_DEFINE_NEXUS_DEVICE(dwcotg, 0, RTEMS_ARRAY_SIZE(dwcotg0_res),
+    &dwcotg0_res[0]);
+
+SYSINIT_REFERENCE(usb_quirk_init);
+SYSINIT_DRIVER_REFERENCE(uhub, usbus);
+SYSINIT_DRIVER_REFERENCE(umass, uhub);
+
 #elif defined(LIBBSP_I386_PC386_BSP_H)
 
 RTEMS_BSD_DEFINE_NEXUS_DEVICE(legacy, 0, 0, NULL);

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);

wscript

@@ -713,6 +713,7 @@ def build(bld):
               'freebsd/sys/dev/sdhci/sdhci.c',
               'freebsd/sys/dev/smc/if_smc.c',
               'freebsd/sys/dev/tsec/if_tsec.c',
+              'freebsd/sys/dev/usb/controller/dwc_otg.c',
               'freebsd/sys/dev/usb/controller/ehci.c',
               'freebsd/sys/dev/usb/controller/ohci.c',
               'freebsd/sys/dev/usb/controller/usb_controller.c',
@@ -1045,6 +1046,7 @@ def build(bld):
               'rtemsbsd/sys/dev/ffec/if_ffec_mcf548x.c',
               'rtemsbsd/sys/dev/smc/if_smc_nexus.c',
               'rtemsbsd/sys/dev/tsec/if_tsec_nexus.c',
+              'rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c',
               'rtemsbsd/sys/dev/usb/controller/ehci_mpc83xx.c',
               'rtemsbsd/sys/dev/usb/controller/ohci_lpc.c',
               'rtemsbsd/sys/dev/usb/controller/usb_otg_transceiver.c',