From aabc8aca47e60cf745a34af28c50679fcb967910 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sat, 3 Oct 2020 18:17:11 -0400
Subject: New port:  FiiO M3K

Most credit goes to:  Roman Skylarov
Additional integration and refactoring by myself.

 *** COMPLETELY UNTESTED ***

Change-Id: Ia64c36d92e0214c6b15f7a868df286f8113ea27b
---
 firmware/target/hosted/fiio/power-fiio.c | 78 ++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 firmware/target/hosted/fiio/power-fiio.c

(limited to 'firmware/target/hosted/fiio/power-fiio.c')

diff --git a/firmware/target/hosted/fiio/power-fiio.c b/firmware/target/hosted/fiio/power-fiio.c
new file mode 100644
index 0000000000..a2b19ce550
--- /dev/null
+++ b/firmware/target/hosted/fiio/power-fiio.c
@@ -0,0 +1,78 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2017 by Marcin Bukat
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include <sys/types.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "system.h"
+#include "power.h"
+#include "panic.h"
+#include "sysfs.h"
+#include "usb.h"
+
+#include "power-fiio.h"
+
+const char * const sysfs_bat_voltage =
+    "/sys/class/power_supply/battery/voltage_now";
+
+const char * const sysfs_bat_capacity =
+    "/sys/class/power_supply/battery/capacity";
+
+const char * const sysfs_bat_status =
+    "/sys/class/power_supply/battery/status";
+
+const char * const sysfs_pow_supply =
+    "/sys/class/power_supply/ac/online";
+
+unsigned int fiio_power_input_status(void)
+{
+    int present = 0;
+    sysfs_get_int(sysfs_pow_supply, &present);
+
+    usb_enable(present ? true : false);
+
+    return present ? POWER_INPUT_USB_CHARGER : POWER_INPUT_NONE;
+}
+
+bool fiio_power_charging_status(void)
+{
+    char buf[12] = {0};
+    sysfs_get_string(sysfs_bat_status, buf, sizeof(buf));
+
+    return (strncmp(buf, "Charging", 8) == 0);
+}
+
+unsigned int fiio_power_get_battery_voltage(void)
+{
+    int battery_voltage;
+    sysfs_get_int(sysfs_bat_voltage, &battery_voltage);
+
+    return battery_voltage;
+}
+
+unsigned int fiio_power_get_battery_capacity(void)
+{
+    int battery_capacity;
+    sysfs_get_int(sysfs_bat_capacity, &battery_capacity);
+
+    return battery_capacity * 20;
+}
-- 
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