From b1bec8f18740486383ce3c8dfcf1b697f00a67f6 Mon Sep 17 00:00:00 2001
From: Joey Castillo <joeycastillo@utexas.edu>
Date: Sat, 19 Feb 2022 12:53:42 -0500
Subject: lis2dw: add support for bandwidth filtering

---
 watch-library/shared/driver/lis2dw.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'watch-library/shared/driver/lis2dw.h')

diff --git a/watch-library/shared/driver/lis2dw.h b/watch-library/shared/driver/lis2dw.h
index 41611172..83b0cfb1 100644
--- a/watch-library/shared/driver/lis2dw.h
+++ b/watch-library/shared/driver/lis2dw.h
@@ -87,6 +87,11 @@ typedef enum {
   LIS2DW_BANDWIDTH_FILTER_DIV20 = 0b11,
 } lis2dw_bandwidth_filtering_mode_t;
 
+typedef enum {
+  LIS2DW_FILTER_LOW_PASS = 0,
+  LIS2DW_FILTER_HIGH_PASS = 1,
+} lis2dw_filter_t;
+
 typedef enum {
   LIS2DW_RANGE_16_G = 0b11, // +/- 16g
   LIS2DW_RANGE_8_G = 0b10,  // +/- 8g
@@ -167,7 +172,8 @@ typedef enum {
 #define LIS2DW_CTRL6_VAL_RANGE_4G         (LIS2DW_RANGE_4_G << 4)
 #define LIS2DW_CTRL6_VAL_RANGE_8G         (LIS2DW_RANGE_8_G << 4)
 #define LIS2DW_CTRL6_VAL_RANGE_16G        (LIS2DW_RANGE_16_G << 4)
-#define LIS2DW_CTRL6_VAL_FDS              0b00001000
+#define LIS2DW_CTRL6_VAL_FDS_LOW          (LIS2DW_FILTER_LOW_PASS << 3)
+#define LIS2DW_CTRL6_VAL_FDS_HIGH         (LIS2DW_FILTER_HIGH_PASS << 3)
 #define LIS2DW_CTRL6_VAL_LOW_NOISE        0b00000100
 
 #define LIS2DW_REG_OUT_TEMP 0x26
@@ -277,6 +283,14 @@ void lis2dw_set_data_rate(lis2dw_data_rate_t dataRate);
 
 lis2dw_data_rate_t lis2dw_get_data_rate(void);
 
+void lis2dw_set_filter_type(lis2dw_filter_t filter);
+
+lis2dw_filter_t lis2dw_get_filter_type(void);
+
+void lis2dw_set_bandwidth_filtering(lis2dw_bandwidth_filtering_mode_t bwfilter);
+
+lis2dw_bandwidth_filtering_mode_t lis2dw_get_filtering(void);
+
 void lis2dw_set_low_power_mode(lis2dw_low_power_mode_t mode);
 
 lis2dw_low_power_mode_t lis2dw_get_low_power_mode(void);
-- 
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