Add HiFiMAN HM-60x target(s). FS#12319 by Andrew Ryabinin with some (small) modification by me. This also splits rk27xx lcd driver into lcdif-rk27xx and lcd controller specific part. Some modifications to the pcm driver have been made to allow using codecs in slave mode (as TDA1543 used in hifiman is slave only i2s codec).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30765 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 66 insertions, 0 deletions

diff --git a/firmware/target/arm/rk27xx/hm60x/powermgmt-hm60x.c b/firmware/target/arm/rk27xx/hm60x/powermgmt-hm60x.c
new file mode 100644
index 0000000000..7b5b171ccb
--- /dev/null
+++ b/firmware/target/arm/rk27xx/hm60x/powermgmt-hm60x.c
@@ -0,0 +1,66 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright © 2009 Bertrik Sikken
+ *
+ * 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 Meizu M3.
+
+    Battery voltage is calculated under the assumption that the adc full-scale
+    readout represents 3.00V and that the battery ADC channel is fed with
+    exactly half of the battery voltage (through a resistive divider).
+    Discharge and charge curves have not been calibrated yet.
+*/
+
+const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
+{
+    /* TODO: this is just an initial guess */
+    3400
+};
+
+const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
+{
+    /* TODO: this is just an initial guess */
+    3300
+};
+
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
+const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
+{
+    /* TODO: simple uncalibrated curve, linear except for first 10% */
+    { 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 }
+};
+
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
+const unsigned short percent_to_volt_charge[11] =
+    /* TODO: simple uncalibrated curve, linear except for first 10% */
+    { 3300, 3600, 3665, 3730, 3795, 3860, 3925, 3990, 4055, 4120, 4185 };
+
+/* full-scale ADC readout (2^10) in millivolt */
+#define BATTERY_SCALE_FACTOR 6000
+
+/* Returns battery voltage from ADC [millivolts] */
+unsigned int battery_adc_voltage(void)
+{
+    return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 10;
+}