6ce70ec7f9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2008 Marius Strobl <marius@FreeBSD.org>
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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/module.h>
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#include <sys/resource.h>
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#include <sys/rman.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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#define SCHPPM_NREG 1
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#define SCHPPM_ESTAR 0
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#define SCHPPM_ESTAR_CTRL 0x00
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#define SCHPPM_ESTAR_CTRL_1 0x00000001
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#define SCHPPM_ESTAR_CTRL_2 0x00000002
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#define SCHPPM_ESTAR_CTRL_32 0x00000020
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#define SCHPPM_ESTAR_CTRL_MASK \
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(SCHPPM_ESTAR_CTRL_1 | SCHPPM_ESTAR_CTRL_2 | SCHPPM_ESTAR_CTRL_32)
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static struct resource_spec schppm_res_spec[] = {
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{ SYS_RES_MEMORY, SCHPPM_ESTAR, RF_ACTIVE },
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{ -1, 0 }
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};
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struct schppm_softc {
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struct resource *sc_res[SCHPPM_NREG];
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};
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#define SCHPPM_READ(sc, reg, off) \
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bus_read_8((sc)->sc_res[(reg)], (off))
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#define SCHPPM_WRITE(sc, reg, off, val) \
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bus_write_8((sc)->sc_res[(reg)], (off), (val))
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static device_probe_t schppm_probe;
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static device_attach_t schppm_attach;
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static device_method_t schppm_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, schppm_probe),
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DEVMETHOD(device_attach, schppm_attach),
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DEVMETHOD_END
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};
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static devclass_t schppm_devclass;
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DEFINE_CLASS_0(schppm, schppm_driver, schppm_methods,
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sizeof(struct schppm_softc));
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DRIVER_MODULE(schppm, nexus, schppm_driver, schppm_devclass, 0, 0);
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static int
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schppm_probe(device_t dev)
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{
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const char* compat;
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compat = ofw_bus_get_compat(dev);
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if (compat != NULL && strcmp(ofw_bus_get_name(dev), "ppm") == 0 &&
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strcmp(compat, "gp2-ppm") == 0) {
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device_set_desc(dev, "Schizo power management");
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return (BUS_PROBE_DEFAULT);
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}
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return (ENXIO);
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}
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static int
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schppm_attach(device_t dev)
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{
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struct schppm_softc *sc;
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sc = device_get_softc(dev);
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if (bus_alloc_resources(dev, schppm_res_spec, sc->sc_res)) {
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device_printf(dev, "failed to allocate resources\n");
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bus_release_resources(dev, schppm_res_spec, sc->sc_res);
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return (ENXIO);
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}
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if (bootverbose) {
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device_printf(dev, "running at ");
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switch (SCHPPM_READ(sc, SCHPPM_ESTAR, SCHPPM_ESTAR_CTRL) &
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SCHPPM_ESTAR_CTRL_MASK) {
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case SCHPPM_ESTAR_CTRL_1:
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printf("full");
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break;
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case SCHPPM_ESTAR_CTRL_2:
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printf("half");
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break;
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case SCHPPM_ESTAR_CTRL_32:
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printf("1/32");
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break;
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default:
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printf("unknown");
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break;
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}
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printf(" speed\n");
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}
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return (0);
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}
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