1 files changed, 60 insertions, 0 deletions

diff --git a/firmware/target/arm/rk27xx/hm801/powermgmt-hm801.c b/firmware/target/arm/rk27xx/hm801/powermgmt-hm801.c
new file mode 100644
index 0000000000..a815d893b2
--- /dev/null
+++ b/firmware/target/arm/rk27xx/hm801/powermgmt-hm801.c
@@ -0,0 +1,60 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright © 2011 Andrew Ryabinin
+ *
+ * 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 "config.h"
+#include "adc.h"
+#include "adc-target.h"
+#include "powermgmt.h"
+
+/*  Battery voltage calculation and discharge/charge curves for the HiFiMAN HM-801.
+
+    I don't know how to calculate battery voltage, so all values represented here is just
+    values from adc battery channel, not millivolts.
+    Discharge and charge curves have not been calibrated yet.
+*/
+
+const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
+{
+    /* OF power off device when this value reached  */
+    430
+};
+
+const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
+{
+    425
+};
+
+/* adc values of 0%, 10%, ... 100% when charging disabled */
+const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
+{
+    /* TODO: simple uncalibrated curve */
+    { 425, 430, 440, 450, 460, 470,  480, 490, 500, 510, 520 }
+};
+
+/* adc values of 0%, 10%, ... 100% when charging enabled */
+const unsigned short percent_to_volt_charge[11] =
+    /* TODO: simple uncalibrated curve */
+    { 425, 430, 440, 450, 460, 470,  480, 490, 500, 510, 520  };
+
+unsigned int battery_adc_voltage(void)
+{
+    return adc_read(ADC_BATTERY);
+}