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.
219 lines
6.1 KiB
C
219 lines
6.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2009 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/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/resource.h>
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#include <sys/rman.h>
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#include <dev/led/led.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 EPIC_DELAY 10000
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#define EPIC_NREG 1
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#define EPIC_FW_LED 0
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#define EPIC_FW_LED_DATA 0x40
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#define EPIC_FW_LED_ADDR 0x41
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#define EPIC_FW_LED_WRITE_MASK 0x80
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#define EPIC_FW_VERSION 0x05
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#define EPIC_LED_STATE0 0x06
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#define EPIC_LED_ALERT_MASK 0x0c
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#define EPIC_LED_ALERT_OFF 0x00
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#define EPIC_LED_ALERT_ON 0x04
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#define EPIC_LED_POWER_MASK 0x30
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#define EPIC_LED_POWER_OFF 0x00
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#define EPIC_LED_POWER_ON 0x10
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#define EPIC_LED_POWER_SB_BLINK 0x20
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#define EPIC_LED_POWER_FAST_BLINK 0x30
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static struct resource_spec epic_res_spec[] = {
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{ SYS_RES_MEMORY, EPIC_FW_LED, RF_ACTIVE },
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{ -1, 0 }
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};
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struct epic_softc {
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struct mtx sc_mtx;
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struct resource *sc_res[EPIC_NREG];
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struct cdev *sc_led_dev_alert;
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struct cdev *sc_led_dev_power;
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};
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#define EPIC_FW_LED_READ(sc, off) ({ \
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uint8_t __val; \
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bus_write_1((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_ADDR, (off));\
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bus_barrier((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_ADDR, 1, \
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BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); \
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DELAY(EPIC_DELAY); \
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__val = bus_read_1((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_DATA);\
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bus_barrier((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_DATA, 1, \
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BUS_SPACE_BARRIER_READ); \
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DELAY(EPIC_DELAY); \
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__val; \
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})
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#define EPIC_FW_LED_WRITE(sc, off, mask, val) do { \
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bus_write_1((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_ADDR, (off));\
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bus_barrier((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_ADDR, 1, \
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BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); \
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DELAY(EPIC_DELAY); \
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bus_write_1((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_WRITE_MASK, \
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(mask)); \
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bus_barrier((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_WRITE_MASK, \
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1, BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); \
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DELAY(EPIC_DELAY); \
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bus_write_1((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_DATA, (val));\
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bus_barrier((sc)->sc_res[EPIC_FW_LED], EPIC_FW_LED_DATA, 1, \
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BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); \
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DELAY(EPIC_DELAY); \
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} while (0)
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#define EPIC_LOCK_INIT(sc) \
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mtx_init(&(sc)->sc_mtx, "epic mtx", NULL, MTX_DEF)
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#define EPIC_LOCK_DESTROY(sc) mtx_destroy(&(sc)->sc_mtx)
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#define EPIC_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
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#define EPIC_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)
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static device_probe_t epic_probe;
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static device_attach_t epic_attach;
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static device_detach_t epic_detach;
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static void epic_led_alert(void *arg, int onoff);
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static void epic_led_power(void *arg, int onoff);
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static device_method_t epic_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, epic_probe),
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DEVMETHOD(device_attach, epic_attach),
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DEVMETHOD(device_detach, epic_detach),
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DEVMETHOD_END
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};
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static devclass_t epic_devclass;
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DEFINE_CLASS_0(epic, epic_driver, epic_methods,
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sizeof(struct epic_softc));
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DRIVER_MODULE(epic, ebus, epic_driver, epic_devclass, 0, 0);
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static int
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epic_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),
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"env-monitor") == 0 && strcmp(compat, "epic") == 0) {
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device_set_desc(dev, "Sun Fire V215/V245 LEDs");
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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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epic_attach(device_t dev)
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{
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struct epic_softc *sc;
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sc = device_get_softc(dev);
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if (bus_alloc_resources(dev, epic_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, epic_res_spec, sc->sc_res);
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return (ENXIO);
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}
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EPIC_LOCK_INIT(sc);
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if (bootverbose)
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device_printf(dev, "version 0x%x\n",
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EPIC_FW_LED_READ(sc, EPIC_FW_VERSION));
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sc->sc_led_dev_alert = led_create(epic_led_alert, sc, "alert");
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sc->sc_led_dev_power = led_create(epic_led_power, sc, "power");
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return (0);
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}
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static int
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epic_detach(device_t dev)
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{
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struct epic_softc *sc;
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sc = device_get_softc(dev);
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led_destroy(sc->sc_led_dev_alert);
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led_destroy(sc->sc_led_dev_power);
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bus_release_resources(dev, epic_res_spec, sc->sc_res);
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EPIC_LOCK_DESTROY(sc);
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return (0);
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}
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static void
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epic_led_alert(void *arg, int onoff)
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{
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struct epic_softc *sc;
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sc = (struct epic_softc *)arg;
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EPIC_LOCK(sc);
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EPIC_FW_LED_WRITE(sc, EPIC_LED_STATE0, EPIC_LED_ALERT_MASK,
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onoff ? EPIC_LED_ALERT_ON : EPIC_LED_ALERT_OFF);
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EPIC_UNLOCK(sc);
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}
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static void
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epic_led_power(void *arg, int onoff)
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{
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struct epic_softc *sc;
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sc = (struct epic_softc *)arg;
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EPIC_LOCK(sc);
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EPIC_FW_LED_WRITE(sc, EPIC_LED_STATE0, EPIC_LED_POWER_MASK,
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onoff ? EPIC_LED_POWER_ON : EPIC_LED_POWER_OFF);
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EPIC_UNLOCK(sc);
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}
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