771997501f
bus_generic_rl_release_resource() for the bus_release_resource() method instead of a local copy. - Correctly handle pass-through allocations in fhc_alloc_resource(). - In case the board model can't be determined just print "unknown model" so the physical slot number is reported in any case. - Add support for blinking the 'Cycling' LED of boards on a fhc(4) hanging of off the nexus (i.e. all boards except the clock board) via led(4). All boards have at least 3 controllable status LEDs, 'Power', 'Failure' and 'Cycling'. While the 'Cycling' LED is suitable for signaling from the OS the others are better off being controlled by the firmware. The device name for the 'Cycling' LED of each board is /dev/led/boardX where X is the physical slot number of the board. [1] Obtained from: OpenBSD [1] Tested by: joerg [1]
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*-
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* Copyright (c) 2003 Jake Burkholder.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <dev/ofw/ofw_bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <sparc64/fhc/fhcreg.h>
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#include <sparc64/fhc/fhcvar.h>
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static device_probe_t fhc_central_probe;
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static device_attach_t fhc_central_attach;
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static device_method_t fhc_central_methods[] = {
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/* Device interface. */
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DEVMETHOD(device_probe, fhc_central_probe),
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DEVMETHOD(device_attach, fhc_central_attach),
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/* Bus interface. */
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DEVMETHOD(bus_print_child, fhc_print_child),
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DEVMETHOD(bus_probe_nomatch, fhc_probe_nomatch),
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DEVMETHOD(bus_setup_intr, fhc_setup_intr),
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DEVMETHOD(bus_teardown_intr, fhc_teardown_intr),
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DEVMETHOD(bus_alloc_resource, fhc_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_get_resource_list, fhc_get_resource_list),
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/* ofw_bus interface */
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DEVMETHOD(ofw_bus_get_compat, fhc_get_compat),
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DEVMETHOD(ofw_bus_get_model, fhc_get_model),
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DEVMETHOD(ofw_bus_get_name, fhc_get_name),
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DEVMETHOD(ofw_bus_get_node, fhc_get_node),
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DEVMETHOD(ofw_bus_get_type, fhc_get_type),
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{ NULL, NULL }
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};
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static driver_t fhc_central_driver = {
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"fhc",
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fhc_central_methods,
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sizeof(struct fhc_softc),
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};
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static devclass_t fhc_central_devclass;
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DRIVER_MODULE(fhc, central, fhc_central_driver, fhc_central_devclass, 0, 0);
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static int
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fhc_central_probe(device_t dev)
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{
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if (strcmp(ofw_bus_get_name(dev), "fhc") == 0) {
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device_set_desc(dev, "fhc");
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return (fhc_probe(dev));
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}
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return (ENXIO);
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}
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static int
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fhc_central_attach(device_t dev)
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{
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struct fhc_softc *sc;
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phandle_t node;
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int board;
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int rid;
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int i;
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sc = device_get_softc(dev);
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node = ofw_bus_get_node(dev);
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sc->sc_node = node;
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sc->sc_flags |= FHC_CENTRAL;
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for (i = 0; i < FHC_NREG; i++) {
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rid = i;
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sc->sc_memres[i] = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&rid, RF_ACTIVE);
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if (sc->sc_memres[i] == NULL)
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panic("%s: can't allocate registers", __func__);
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sc->sc_bt[i] = rman_get_bustag(sc->sc_memres[i]);
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sc->sc_bh[i] = rman_get_bushandle(sc->sc_memres[i]);
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}
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board = bus_space_read_4(sc->sc_bt[FHC_INTERNAL],
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sc->sc_bh[FHC_INTERNAL], FHC_BSR);
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sc->sc_board = ((board >> 16) & 0x1) | ((board >> 12) & 0xe);
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return (fhc_attach(dev));
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}
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