mfd: ab8500-gpadc: Add gpadc hw conversion

[firefly-linux-kernel-4.4.55.git] / include / linux / mfd / abx500 / ab8500-gpadc.h

diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h
index 252966769d939fae571aa6dc260b86e1280bfc2f..7694e7ab1880fac16f9efca7975eabfefadc4565 100644 (file)
--- a/include/linux/mfd/abx500/ab8500-gpadc.h
+++ b/include/linux/mfd/abx500/ab8500-gpadc.h
@@ -4,12 +4,14 @@
  *
  * Author: Arun R Murthy <arun.murthy@stericsson.com>
  * Author: Daniel Willerud <daniel.willerud@stericsson.com>
+ * Author: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
  */
 
 #ifndef        _AB8500_GPADC_H
 #define _AB8500_GPADC_H
 
-/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2) */
+/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
+ * and ADCHwSel[4:0] in GPADCCtrl3 ) */
 #define BAT_CTRL       0x01
 #define BTEMP_BALL     0x02
 #define MAIN_CHARGER_V 0x03
@@ -24,12 +26,32 @@
 #define BK_BAT_V       0x0C
 #define DIE_TEMP       0x0D
 
+#define SAMPLE_1        1
+#define SAMPLE_4        4
+#define SAMPLE_8        8
+#define SAMPLE_16       16
+#define RISING_EDGE     0
+#define FALLING_EDGE    1
+
+/* Arbitrary ADC conversion type constants */
+#define ADC_SW                         0
+#define ADC_HW                         1
+
+
 struct ab8500_gpadc;
 
 struct ab8500_gpadc *ab8500_gpadc_get(char *name);
-int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel);
-int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel);
+int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
+               u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
+static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
+{
+       return ab8500_gpadc_sw_hw_convert(gpadc, channel,
+                       SAMPLE_16, 0, 0, ADC_SW);
+}
+
+int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
+               u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
 int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
-    u8 channel, int ad_value);
+               u8 channel, int ad_value);
 
 #endif /* _AB8500_GPADC_H */