| /*************************************************************************** |
| * __________ __ ___. |
| * 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_ |
| |
| #define NUM_ADC_CHANNELS 8 |
| |
| #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 */ |
| #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 */ |
| |
| #define EXT_SCALE_FACTOR 14800 |
| |
| unsigned short adc_read(int channel); |
| void adc_init(void); |
| |
| #endif |