Commonise flash-based OTA. Add h7 support.

src/ota_dummy.c

@@ -2,36 +2,39 @@
 #include "ota.h"
 
 #if MG_OTA == MG_OTA_NONE
-static struct mg_ota_data s_od[2] = {
-    {MG_OTA_MAGIC, (uint32_t) -1, (uint32_t) -1, (uint32_t) -1, (uint32_t) -1,
-     (uint32_t) -1},
-    {MG_OTA_MAGIC, (uint32_t) -1, (uint32_t) -1, (uint32_t) -1, (uint32_t) -1,
-     (uint32_t) -1},
-};
 bool mg_ota_begin(size_t new_firmware_size) {
-  MG_DEBUG(("Starting firmware update, size %lu", new_firmware_size));
+  (void) new_firmware_size;
   return true;
 }
 bool mg_ota_write(const void *buf, size_t len) {
-  MG_DEBUG(("%p %lu", buf, len));
+  (void) buf, (void) len;
   return true;
 }
 bool mg_ota_end(void) {
   return true;
 }
-bool mg_ota_status(struct mg_ota_data od[2]) {
-  od[0] = s_od[0];
-  od[1] = s_od[1];
-  return true;
-}
 bool mg_ota_commit(void) {
-  s_od[0].golden = 0;
   return true;
 }
 bool mg_ota_rollback(void) {
   return true;
 }
+int mg_ota_status(int fw) {
+  (void) fw;
+  return 0;
+}
+uint32_t mg_ota_crc32(int fw) {
+  (void) fw;
+  return 0;
+}
+uint32_t mg_ota_timestamp(int fw) {
+  (void) fw;
+  return 0;
+}
+size_t mg_ota_size(int fw) {
+  (void) fw;
+  return 0;
+}
 void mg_sys_reset(void) {
-  MG_DEBUG(("Resetting device..."));
 }
 #endif