diff options
Diffstat (limited to 'arch/arm/plat-mxs/include/mach/lradc.h')
| -rw-r--r-- | arch/arm/plat-mxs/include/mach/lradc.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/plat-mxs/include/mach/lradc.h b/arch/arm/plat-mxs/include/mach/lradc.h new file mode 100644 index 000000000000..c2c0a7deb0b4 --- /dev/null +++ b/arch/arm/plat-mxs/include/mach/lradc.h @@ -0,0 +1,61 @@ +/* + * Freescale STMP37XX/STMP378X LRADC helper interface + * + * Embedded Alley Solutions, Inc <source@embeddedalley.com> + * + * Copyright 2008-2010 Freescale Semiconductor, Inc. + * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ +#ifndef __ASM_PLAT_LRADC_H +#define __ASM_PLAT_LRADC_H + +int hw_lradc_use_channel(int); +int hw_lradc_unuse_channel(int); +extern u32 hw_lradc_vddio(void); +void hw_lradc_set_delay_trigger_kick(int trigger, int value); +void hw_lradc_configure_channel(int channel, int enable_div2, + int enable_acc, int samples); +int hw_lradc_present(int channel); +int hw_lradc_init_ladder(int channel, int trigger, unsigned sampling); +int hw_lradc_stop_ladder(int channel, int trigger); +void hw_lradc_set_delay_trigger(int trigger, u32 trigger_lradc, + u32 delay_triggers, u32 loops, u32 delays); +void hw_lradc_clear_delay_trigger(int trigger, u32 trigger_lradc, + u32 delay_triggers); + + +#define LRADC_CH0 0 +#define LRADC_CH1 1 +#define LRADC_CH2 2 +#define LRADC_CH3 3 +#define LRADC_CH4 4 +#define LRADC_CH5 5 +#define LRADC_CH6 6 +#define LRADC_CH7 7 +#define LRADC_TOUCH_X_PLUS LRADC_CH2 +#define LRADC_TOUCH_Y_PLUS LRADC_CH3 +#define LRADC_TOUCH_X_MINUS LRADC_CH4 +#define LRADC_TOUCH_Y_MINUS LRADC_CH5 +#define VDDIO_VOLTAGE_CH LRADC_CH6 +#define BATTERY_VOLTAGE_CH LRADC_CH7 + +#define LRADC_CLOCK_6MHZ 0 +#define LRADC_CLOCK_4MHZ 1 +#define LRADC_CLOCK_3MHZ 2 +#define LRADC_CLOCK_2MHZ 3 + +#define LRADC_DELAY_TRIGGER_BUTTON 0 +#define LRADC_DELAY_TRIGGER_BATTERY 1 +#define LRADC_DELAY_TRIGGER_TOUCHSCREEN 2 +#define LRADC_DELAY_TRIGGER_DIE 3 + +#endif /* __ASM_PLAT_LRADC_H */ |