From 1f3d69d87c6d708ccf574af61a434b77637c900b Mon Sep 17 00:00:00 2001
From: Lucian Copeland <hierophect@gmail.com>
Date: Sun, 20 Jun 2021 17:57:51 -0400
Subject: [PATCH] Clean up sleep memory, mark as not-implemented

---
 locale/circuitpython.pot                      |  1 +
 .../common-hal/alarm/SleepMemory.c            | 24 ++++---------------
 .../common-hal/alarm/SleepMemory.h            | 15 ------------
 3 files changed, 5 insertions(+), 35 deletions(-)

diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot
index d1c27c180a..a0096b35b9 100644
--- a/locale/circuitpython.pot
+++ b/locale/circuitpython.pot
@@ -2026,6 +2026,7 @@ msgstr ""
 msgid "Size not supported"
 msgstr ""
 
+#: ports/raspberrypi/common-hal/alarm/SleepMemory.c
 #: ports/stm/common-hal/alarm/SleepMemory.c
 msgid "Sleep Memory not available"
 msgstr ""
diff --git a/ports/raspberrypi/common-hal/alarm/SleepMemory.c b/ports/raspberrypi/common-hal/alarm/SleepMemory.c
index a444cbf207..b8fcdfbccf 100644
--- a/ports/raspberrypi/common-hal/alarm/SleepMemory.c
+++ b/ports/raspberrypi/common-hal/alarm/SleepMemory.c
@@ -29,35 +29,19 @@
 #include "py/runtime.h"
 #include "common-hal/alarm/SleepMemory.h"
 
-// Data storage for singleton instance of SleepMemory.
-// Might be RTC_SLOW_MEM or RTC_FAST_MEM, depending on setting of CONFIG_ESP32S2_RTCDATA_IN_FAST_MEM.
-// static RTC_DATA_ATTR uint8_t _sleep_mem[SLEEP_MEMORY_LENGTH];
-
 void alarm_sleep_memory_reset(void) {
-    // ESP-IDF build system takes care of doing esp_sleep_pd_config() or the equivalentwith
-    // the correct settings, depending on which RTC mem we are using.
-    // https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/api-reference/system/sleep_modes.html#power-down-of-rtc-peripherals-and-memories
 }
 
 uint32_t common_hal_alarm_sleep_memory_get_length(alarm_sleep_memory_obj_t *self) {
-    return 0;// sizeof(_sleep_mem);
+    mp_raise_NotImplementedError(translate("Sleep Memory not available"));
+    return 0;
 }
 
 bool common_hal_alarm_sleep_memory_set_bytes(alarm_sleep_memory_obj_t *self, uint32_t start_index, const uint8_t *values, uint32_t len) {
-
-    // if (start_index + len > sizeof(_sleep_mem)) {
-    //     return false;
-    // }
-
-    // memcpy((uint8_t *)(_sleep_mem + start_index), values, len);
-    // return true;
+    mp_raise_NotImplementedError(translate("Sleep Memory not available"));
     return false;
 }
 
 void common_hal_alarm_sleep_memory_get_bytes(alarm_sleep_memory_obj_t *self, uint32_t start_index, uint8_t *values, uint32_t len) {
-
-    // if (start_index + len > sizeof(_sleep_mem)) {
-    //     return;
-    // }
-    // memcpy(values, (uint8_t *)(_sleep_mem + start_index), len);
+    mp_raise_NotImplementedError(translate("Sleep Memory not available"));
 }
diff --git a/ports/raspberrypi/common-hal/alarm/SleepMemory.h b/ports/raspberrypi/common-hal/alarm/SleepMemory.h
index 427fe30a8c..59d0429c3b 100644
--- a/ports/raspberrypi/common-hal/alarm/SleepMemory.h
+++ b/ports/raspberrypi/common-hal/alarm/SleepMemory.h
@@ -29,21 +29,6 @@
 
 #include "py/obj.h"
 
-// There are several places we could store persistent data for SleepMemory:
-//
-// RTC registers: There are a few 32-bit registers maintained during deep sleep.
-// We are already using one for saving sleep information during deep sleep.
-//
-// RTC Fast Memory: 8kB, also used for deep-sleep power-on stub.
-// RTC Slow Memory: 8kB, also used for the ULP (tiny co-processor available during sleep).
-//
-// The ESP-IDF build system takes care of the power management of these regions.
-// RTC_DATA_ATTR will allocate storage in RTC_SLOW_MEM unless CONFIG_ESP32S2_RTCDATA_IN_FAST_MEM
-// is set. Any memory not allocated by us can be used by the ESP-IDF for heap or other purposes.
-
-// Use half of RTC_SLOW_MEM or RTC_FAST_MEM.
-#define SLEEP_MEMORY_LENGTH (4096)
-
 typedef struct {
     mp_obj_base_t base;
 } alarm_sleep_memory_obj_t;