diff options
Diffstat (limited to 'firmware/export/adc.h')
| -rw-r--r-- | firmware/export/adc.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/firmware/export/adc.h b/firmware/export/adc.h new file mode 100644 index 0000000000..1c94eec63e --- /dev/null +++ b/firmware/export/adc.h @@ -0,0 +1,47 @@ +/*************************************************************************** + * __________ __ ___. + * 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 |