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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