68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* hdd_led.c
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*
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* Copyright (C) 2017 Jeremy Soller <jeremy@system76.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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static enum led_brightness hdd_led_brightness = 1;
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static enum led_brightness hdd_led_get(struct led_classdev *led_cdev) {
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return hdd_led_brightness;
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}
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static int hdd_led_set(struct led_classdev *led_cdev, enum led_brightness value) {
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S76_INFO("hdd_led_set %d\n", (int)value);
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if (value > 0) {
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s76_wmbb(0x79, 0x090000FF, NULL);
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} else {
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s76_wmbb(0x79, 0x09000000, NULL);
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}
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return 0;
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}
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static struct led_classdev hdd_led = {
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.name = "system76::hdd",
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.brightness_get = hdd_led_get,
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.brightness_set_blocking = hdd_led_set,
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.max_brightness = 1,
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.default_trigger = "disk-activity"
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};
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static void hdd_led_resume(void) {
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hdd_led_set(&hdd_led, hdd_led_brightness);
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}
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static int __init hdd_led_init(struct device *dev) {
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int err;
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err = led_classdev_register(dev, &hdd_led);
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if (unlikely(err)) {
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return err;
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}
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hdd_led_resume();
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return 0;
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}
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static void __exit hdd_led_exit(void) {
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if (!IS_ERR_OR_NULL(hdd_led.dev)) {
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led_classdev_unregister(&hdd_led);
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}
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}
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