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Add Xuelin iHIFI 770/770C/800 support

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Taken from the xvortex fork (Roman Stolyarov)
Ported, rebased, and cleaned up by myself.

Change-Id: I7b2bca2d29502f2e4544e42f3d122786dd4b7978
This commit is contained in:
Solomon Peachy 2018-06-29 16:09:28 -04:00
parent af9459a799
commit d4942cc74c
95 changed files with 4419 additions and 534 deletions
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64
firmware/target/arm/rk27xx/ihifi2/powermgmt-ihifi800.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2016 by Roman Stolyarov
*
* 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 iHiFi 800
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).
Charge curve have not been calibrated yet.
*/
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
/* 5% */
3628,
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
/* 0% */
3300,
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
{ 3300, 3649, 3701, 3726, 3745, 3778, 3831, 3904, 3965, 4056, 4160 }
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{ 3300, 3649, 3701, 3726, 3745, 3778, 3831, 3904, 3965, 4056, 4160 };
/* full-scale ADC readout (2^10) in millivolt */
#define BATTERY_SCALE_FACTOR 6296
/* Returns battery voltage from ADC [millivolts] */
int _battery_voltage(void)
{
return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 10;
}