New port: AIGO EROS Q / EROS K

The Q and K have a slightly different case, but the hardware under the
shell is completely identical.

These models are rebadged versions:

 * Hifiwalker H2   (== Q)
 * AGPTek H3       (== K)
 * Surfans F20     (== K)

Other notes:

  * Significant improvements in the shared Hiby-platform launcher/loader
    * SD card can theoretically be hot-swapped now
    * Support external USB mass storage!
  * Some consolidation of Hiby-platform targets
  * Some consolidation of plugin keymaps

Todo/known issues:

 * Keymaps need to be gone over properly
 * Convert to HAVE_SCROLLWHEEL?

Change-Id: I5a8a4f22c38a5b69392ca7c0a8ad8c4e07d9523c

1 files changed, 74 insertions, 0 deletions

diff --git a/firmware/target/hosted/aigo/power-erosq.c b/firmware/target/hosted/aigo/power-erosq.c
new file mode 100644
index 0000000000..0a4f820337
--- /dev/null
+++ b/firmware/target/hosted/aigo/power-erosq.c
@@ -0,0 +1,74 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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-erosq.h"
+#include "power.h"
+#include "panic.h"
+#include "sysfs.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/usb/present";
+
+unsigned int erosq_power_input_status(void)
+{
+    int present = 0;
+    sysfs_get_int(sysfs_pow_supply, &present);
+
+    return present ? POWER_INPUT_USB_CHARGER : POWER_INPUT_NONE;
+}
+
+bool erosq_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 erosq_power_get_battery_voltage(void)
+{
+    int battery_voltage;
+    sysfs_get_int(sysfs_bat_voltage, &battery_voltage);
+
+    return battery_voltage/1000;
+}
+
+unsigned int erosq_power_get_battery_capacity(void)
+{
+    int battery_capacity;
+    sysfs_get_int(sysfs_bat_capacity, &battery_capacity);
+
+    return battery_capacity;
+}