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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _ADC_H_
#define _ADC_H_
#include "config.h"
#ifdef IRIVER_H100
#define NUM_ADC_CHANNELS 4
#define ADC_BUTTONS 0
#define ADC_REMOTE 1
#define ADC_BATTERY 2
#define ADC_UNREG_POWER ADC_BATTERY /* For compatibility */
#else
#define NUM_ADC_CHANNELS 8
#ifdef HAVE_ONDIO_ADC
#define ADC_MMC_SWITCH 0 /* low values if MMC inserted */
#define ADC_USB_POWER 1 /* USB, reads 0x000 when USB is inserted */
#define ADC_BUTTON_OPTION 2 /* the option button, low value if pressed */
#define ADC_BUTTON_ONOFF 3 /* the on/off button, high value if pressed */
#define ADC_BUTTON_ROW1 4 /* Used for scanning the keys, different
voltages for different keys */
#define ADC_USB_ACTIVE 5 /* USB bridge activity */
#define ADC_UNREG_POWER 7 /* Battery voltage */
#else
/* normal JBR channel assignment */
#define ADC_BATTERY 0 /* Battery voltage always reads 0x3FF due to
silly scaling */
#ifdef HAVE_FMADC
#define ADC_CHARGE_REGULATOR 0 /* Uh, we read the battery voltage? */
#define ADC_USB_POWER 1 /* USB, reads 0x000 when USB is inserted */
#define ADC_BUTTON_OFF 2 /* the off button, high value if pressed */
#define ADC_BUTTON_ON 3 /* the on button, low value if pressed */
#else
#define ADC_CHARGE_REGULATOR 1 /* Regulator reference voltage, should read
about 0x1c0 when charging, else 0x3FF */
#define ADC_USB_POWER 2 /* USB, reads 0x3FF when USB is inserted */
#endif
#define ADC_BUTTON_ROW1 4 /* Used for scanning the keys, different
voltages for different keys */
#define ADC_BUTTON_ROW2 5 /* Used for scanning the keys, different
voltages for different keys */
#define ADC_UNREG_POWER 6 /* Battery voltage with a better scaling */
#define ADC_EXT_POWER 7 /* The external power voltage, V=X*0.0148 */
#endif
#define EXT_SCALE_FACTOR 14800
#endif
unsigned short adc_read(int channel);
void adc_init(void);
#ifdef IRIVER_H100
unsigned char adc_scan(int channel);
#endif
#endif
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