hw/mcu/dialog: Add API to get expected wakeup time

apache · Aug 1, 2023 · 1e32211 · 1e32211
1 parent bd7aa45
commit 1e32211
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diff --git a/hw/mcu/dialog/da1469x/include/mcu/da1469x_sleep.h b/hw/mcu/dialog/da1469x/include/mcu/da1469x_sleep.h
@@ -33,6 +33,7 @@ struct da1469x_sleep_cb {
 };
 
 void da1469x_sleep_cb_register(struct da1469x_sleep_cb *cb);
+uint32_t da1469x_sleep_wakeup_time_us_get(void);
 
 #ifdef __cplusplus
 }

diff --git a/hw/mcu/dialog/da1469x/src/da1469x_sleep.c b/hw/mcu/dialog/da1469x/src/da1469x_sleep.c
@@ -167,3 +167,12 @@ da1469x_sleep_cb_register(struct da1469x_sleep_cb *cb)
 {
 }
 #endif
+
+uint32_t
+da1469x_sleep_wakeup_time_us_get(void)
+{
+    /* XXX assume fast wakeup, i.e. up to 12 RC32K cycles + time required for
+     *     XTAL32M to settle */
+    return 12 * 1000000 / da1469x_clock_lp_rc32k_freq_get() +
+           MYNEWT_VAL(MCU_CLOCK_XTAL32M_SETTLE_TIME_US);
+}
-Original file line number
+Diff line change
@@ Expand Up / @@ -33,6 +33,7 @@ struct da1469x_sleep_cb { @@
     };
     void da1469x_sleep_cb_register(struct da1469x_sleep_cb *cb);
+    uint32_t da1469x_sleep_wakeup_time_us_get(void);
     #ifdef __cplusplus
     }
@@ Expand Down @@