hww: _api_info write byte for initialized status

Write another byte for the initialized status in the _api_info function.
This field can be used to check whether a device can be unlocked or not.
The unlocked byte is not sufficient because unlocked = false could mean
the device is locked or the device is uninitialized.

Author: NicolaLS

CHANGELOG.md

@@ -13,6 +13,7 @@ customers cannot upgrade their bootloader, its changes are recorded separately.
 - Bitcoin: allow spendung UTXOs at very high BIP-44 address indices
 - Ethereum: allow signing EIP-712 messages containing multi-line strings
 - Allow exiting the screen asking to insert the microSD card
+- HWW: add initialized status byte to _api_info response
 
 ### 9.18.0
 - Add support for deriving BIP-39 mnemonics according to BIP-85

src/hww.c

@@ -16,6 +16,7 @@
 
 #include <hardfault.h>
 #include <keystore.h>
+#include <memory/memory.h>
 
 #include <platform_config.h>
 #include <rust/rust.h>
@@ -65,6 +66,7 @@ typedef struct {
  * - For the BitBoxBase platform (deprecated):
  " - 0x00 - Standard
  * 1 byte: 0x00 if the device is locked, 0x01 if the device is unlocked.
+ * 1 byte: 0x00 if the device is uninitialized, 0x01 if the device is initialized.
  * @param[out] buf serialize info to this buffer.
  * @return number of bytes written
  */
@@ -97,6 +99,10 @@ static size_t _api_info(uint8_t* buf)
     *current = keystore_is_locked() ? 0x00 : 0x01;
     current++;
 
+    // 1 byte initialized status
+    *current = memory_is_initialized() ? 0x01 : 0x00;
+    current++;
+
     return current - buf;
 }