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Add hard drive LED

This commit is contained in:
Jeremy Soller 2018-04-18 10:25:38 -06:00
parent cd7477a49c
commit 0d779b6c43
2 changed files with 77 additions and 2 deletions
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67
hdd_led.c Normal file
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@ -0,0 +1,67 @@
/*
* hdd_led.c
*
* Copyright (C) 2017 Jeremy Soller <jeremy@system76.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
static enum led_brightness hdd_led_brightness = 1;
static enum led_brightness hdd_led_get(struct led_classdev *led_cdev) {
return hdd_led_brightness;
}
static int hdd_led_set(struct led_classdev *led_cdev, enum led_brightness value) {
S76_INFO("hdd_led_set %d\n", (int)value);
if (value > 0) {
s76_wmbb(0x79, 0x090000FF, NULL);
} else {
s76_wmbb(0x79, 0x09000000, NULL);
}
return 0;
}
static struct led_classdev hdd_led = {
.name = "system76::hdd",
.brightness_get = hdd_led_get,
.brightness_set_blocking = hdd_led_set,
.max_brightness = 1,
.default_trigger = "disk-activity"
};
static void hdd_led_resume(void) {
hdd_led_set(&hdd_led, hdd_led_brightness);
}
static int __init hdd_led_init(struct device *dev) {
int err;
err = led_classdev_register(dev, &hdd_led);
if (unlikely(err)) {
return err;
}
hdd_led_resume();
return 0;
}
static void __exit hdd_led_exit(void) {
if (!IS_ERR_OR_NULL(hdd_led.dev)) {
led_classdev_unregister(&hdd_led);
}
}

12
system76.c
View File

@ -92,6 +92,7 @@ static int s76_wmbb(u32 method_id, u32 arg, u32 *retval) {
}
#include "ap_led.c"
#include "hdd_led.c"
#include "input.c"
#include "kb_led.c"
#include "hwmon.c"
@ -214,12 +215,17 @@ static int s76_probe(struct platform_device *dev) {
err = ap_led_init(&dev->dev);
if (unlikely(err)) {
S76_ERROR("Could not register LED device\n");
S76_ERROR("Could not register airplane LED device\n");
}
err = hdd_led_init(&dev->dev);
if (unlikely(err)) {
S76_ERROR("Could not register harddrive LED device\n");
}
err = kb_led_init(&dev->dev);
if (unlikely(err)) {
S76_ERROR("Could not register LED device\n");
S76_ERROR("Could not register keyboard LED device\n");
}
err = s76_input_init(&dev->dev);
@ -257,6 +263,7 @@ static int s76_remove(struct platform_device *dev) {
s76_input_exit();
kb_led_exit();
hdd_led_exit();
ap_led_exit();
return 0;
@ -279,6 +286,7 @@ static int s76_resume(struct platform_device *dev) {
s76_wmbb(0x46, 0, NULL);
ap_led_resume();
hdd_led_resume();
kb_led_resume();
return 0;