diff options
Diffstat (limited to 'include/linux/mfd/pcf50606/adc.h')
| -rw-r--r-- | include/linux/mfd/pcf50606/adc.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/linux/mfd/pcf50606/adc.h b/include/linux/mfd/pcf50606/adc.h new file mode 100644 index 00000000000..fd4840300dd --- /dev/null +++ b/include/linux/mfd/pcf50606/adc.h @@ -0,0 +1,72 @@ +/* + * adc.h -- Driver for NXP PCF50606 ADC + * + * (C) 2006-2008 by Openmoko, Inc. + * All rights reserved. + * + * 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. + */ + +#ifndef __LINUX_MFD_PCF50606_ADC_H +#define __LINUX_MFD_PCF50606_ADC_H + +#include <linux/mfd/pcf50633/core.h> +#include <linux/platform_device.h> + +/* ADC Registers */ +#define PCF50606_REG_ADCC1 0x2e +#define PCF50606_REG_ADCC2 0x2f +#define PCF50606_REG_ADCS1 0x30 +#define PCF50606_REG_ADCS2 0x31 +#define PCF50606_REG_ADCS3 0x32 + +#define PCF50606_ADCC1_TSCMODACT 0x01 +#define PCF50606_ADCC1_TSCMODSTB 0x02 +#define PCF50606_ADCC1_TRATSET 0x04 +#define PCF50606_ADCC1_NTCSWAPE 0x08 +#define PCF50606_ADCC1_NTCSWAOFF 0x10 +#define PCF50606_ADCC1_EXTSYNCBREAK 0x20 + /* reserved */ +#define PCF50606_ADCC1_TSCINT 0x80 + +#define PCF50606_ADCC2_ADCSTART 0x01 + /* see enum pcf50606_adcc2_adcmux */ +#define PCF50606_ADCC2_SYNC_NONE 0x00 +#define PCF50606_ADCC2_SYNC_TXON 0x20 +#define PCF50606_ADCC2_SYNC_PWREN1 0x40 +#define PCF50606_ADCC2_SYNC_PWREN2 0x60 +#define PCF50606_ADCC2_RES_10BIT 0x00 +#define PCF50606_ADCC2_RES_8BIT 0x80 + +#define PCF50606_ADCC2_ADCMUX_MASK (0xf << 1) + +#define ADCMUX_SHIFT 1 +#define PCF50606_ADCMUX_BATVOLT_RES (0x0 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_BATVOLT_SUBTR (0x1 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_ADCIN1_RES (0x2 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_ADCIN1_SUBTR (0x3 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_BATTEMP (0x4 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_ADCIN2 (0x5 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_ADCIN3 (0x6 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_ADCIN3_RATIO (0x7 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_XPOS (0x8 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_YPOS (0x9 << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_P1 (0xa << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_P2 (0xb << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_BATVOLT_ADCIN1 (0xc << ADCMUX_SHIFT) +#define PCF50606_ADCMUX_XY_SEQUENCE (0xe << ADCMUX_SHIFT) +#define PCF50606_P1_P2_RESISTANCE (0xf << ADCMUX_SHIFT) + +#define PCF50606_ADCS2_ADCRDY 0x80 + +extern int +pcf50606_adc_async_read(struct pcf50606 *pcf, int mux, + void (*callback)(struct pcf50606 *, void *, int), + void *callback_param); +extern int +pcf50606_adc_sync_read(struct pcf50606 *pcf, int mux); + +#endif /* __LINUX_PCF50606_ADC_H */ |