Import of the watch repository from Pebble

src/fw/apps/demo_apps/flash_demo.c

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "flash_demo.h"
+
+#include "applib/app.h"
+#include "applib/ui/app_window_stack.h"
+#include "applib/ui/window.h"
+
+#include "drivers/flash.h"
+#include "flash_region/flash_region.h"
+#include "system/logging.h"
+
+static Window *window;
+
+#define BASE_ADDRESS 0x380000
+
+static void test_write_short(void) {
+  uint16_t buffer;
+  flash_read_bytes((uint8_t*) &buffer, BASE_ADDRESS, sizeof(buffer));
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Addr 0x%x is 0x%"PRIx16, BASE_ADDRESS, buffer);
+
+  buffer = 0x0505;
+  flash_write_bytes((uint8_t*) &buffer, BASE_ADDRESS, sizeof(buffer));
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Addr 0x%x Written to 0x%x", BASE_ADDRESS, buffer);
+
+  uint8_t read_buffer = 0x0;
+  flash_read_bytes((uint8_t*) &read_buffer, BASE_ADDRESS, sizeof(read_buffer));
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Addr 0x%x is (8) 0x%"PRIx8, BASE_ADDRESS, read_buffer);
+
+  buffer = 0x0;
+  flash_read_bytes((uint8_t*) &buffer, BASE_ADDRESS, sizeof(buffer));
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Addr 0x%x is (16) 0x%"PRIx16, BASE_ADDRESS, buffer);
+}
+
+static void test_write_bytes(void) {
+  for (int i = 1; i < 127; ++i) {
+    uint8_t data = i;
+    flash_write_bytes((uint8_t*) &data, BASE_ADDRESS + i, sizeof(data));
+    PBL_LOG(LOG_LEVEL_DEBUG, ">> Wrote Addr 0x%x is 0x%"PRIx8, i, data);
+  }
+
+  for (int i = 0; i < 128; ++i) {
+    uint8_t data = 0;
+    flash_read_bytes((uint8_t*) &data, BASE_ADDRESS + i, sizeof(data));
+    PBL_LOG(LOG_LEVEL_DEBUG, ">> Read Addr 0x%x is (8) 0x%"PRIx8, i, data);
+  }
+}
+
+static void test_write_block(void) {
+  uint8_t data[64];
+
+  for (unsigned int i = 0; i < sizeof(data); ++i) {
+    data[i] = i;
+  }
+
+  flash_write_bytes(data, BASE_ADDRESS + 31, sizeof(data));
+
+  for (int i = 0; i < 128; ++i) {
+    uint8_t data = 0;
+    flash_read_bytes((uint8_t*) &data, BASE_ADDRESS + i, sizeof(data));
+    PBL_LOG(LOG_LEVEL_DEBUG, ">> Read Addr 0x%x is (8) 0x%"PRIx8, i, data);
+  }
+}
+
+static void do_flash_operation(void) {
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Flash operation time!");
+
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Erasing 0x%x", BASE_ADDRESS);
+  flash_erase_sector_blocking(BASE_ADDRESS);
+  PBL_LOG(LOG_LEVEL_DEBUG, ">> Erasing 0x%x Done", BASE_ADDRESS);
+
+  test_write_short();
+}
+
+static void s_main(void) {
+  window = window_create();
+  app_window_stack_push(window, true /* Animated */);
+
+  do_flash_operation();
+
+  app_event_loop();
+}
+
+const PebbleProcessMd* flash_demo_get_app_info(void) {
+  static const PebbleProcessMdSystem s_app_info = {
+    .common.main_func = &s_main,
+    .name = "Flash Demo"
+  };
+
+  return (const PebbleProcessMd*) &s_app_info;
+}
+