device/trezor: device/trezor: correct device initialization, status check

- checks if the device is in the correct usable state
- implements check for the v2.0.9 firmware which does not support payment IDs
- simple transacttion check, payment id fmt consistency
- minor fixes, refactoring, webusb session counting fix

1 files changed, 2 insertions, 3 deletions

diff --git a/src/device_trezor/device_trezor.hpp b/src/device_trezor/device_trezor.hpp
index a2134574c..1f08be887 100644
--- a/src/device_trezor/device_trezor.hpp
+++ b/src/device_trezor/device_trezor.hpp
@@ -57,9 +57,8 @@ namespace trezor {
    */
   class device_trezor : public hw::trezor::device_trezor_base, public hw::device_cold {
     protected:
-      // To speed up blockchain parsing the view key maybe handle here.
-      crypto::secret_key viewkey;
-      bool has_view_key;
+      void transaction_pre_check(std::shared_ptr<messages::monero::MoneroTransactionInitRequest> init_msg);
+      void transaction_check(const protocol::tx::TData & tdata, const hw::tx_aux_data & aux_data);
 
     public:
       device_trezor();