diff options
Diffstat (limited to 'chip/lm4/lm4_adc.h')
| -rw-r--r-- | chip/lm4/lm4_adc.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/chip/lm4/lm4_adc.h b/chip/lm4/lm4_adc.h index 98f5293646..69479ac265 100644 --- a/chip/lm4/lm4_adc.h +++ b/chip/lm4/lm4_adc.h @@ -14,11 +14,25 @@ enum lm4_adc_sequencer LM4_ADC_SEQ1, LM4_ADC_SEQ2, LM4_ADC_SEQ3, - LM4_ADC_SEQ_COUNT }; -/* Minimum and maximum values returned by lm4_adc_flush_and_read(). */ +/* Data structure to define ADC channels. */ +struct adc_t { + const char *name; + enum lm4_adc_sequencer sequencer; + int factor_mul; + int factor_div; + int shift; + int channel; + int flag; + uint32_t gpio_port; + uint8_t gpio_mask; +}; + +extern const struct adc_t adc_channels[ADC_CH_COUNT]; + +/* Minimum and maximum values returned by raw ADC read. */ #define ADC_READ_MIN 0 #define ADC_READ_MAX 4095 @@ -31,12 +45,4 @@ enum lm4_adc_sequencer /* Dummy value for "channel" in adc_t if we don't have an external channel. */ #define LM4_AIN_NONE (-1) -/* Flush an ADC sequencer and initiate a read. Return raw ADC value. */ -int lm4_adc_flush_and_read(enum lm4_adc_sequencer); - -/* Configure an ADC sequencer to be dedicated for an ADC input "ain_id". - * Value in "ssctl" field is passed to sampler sequencer control register. - */ -int lm4_adc_configure(enum lm4_adc_sequencer, int ain_id, int ssctl); - #endif /* __CROS_EC_LM4_ADC_H */ |