Btc only

.github/workflows/ci.yml

@@ -23,9 +23,9 @@ name: CI
 
 on:
   push:
-    branches: [master, develop, 'feature/**', 'fix/**', 'release/**', 'hotfix/**']
+    branches: [master, develop, btc-only, 'feature/**', 'fix/**', 'release/**', 'hotfix/**']
   pull_request:
-    branches: [master, develop]
+    branches: [master, develop, btc-only]
   workflow_dispatch:
     inputs:
       publish_emulator:
@@ -49,8 +49,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Install clang-format
         run: sudo apt-get install -y clang-format-14
@@ -80,7 +78,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
           fetch-depth: 0
 
       - name: Install gitleaks
@@ -101,7 +98,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
           submodules: false
 
       - name: Install cppcheck
@@ -171,8 +167,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Verify submodules are declared
         run: |
@@ -207,8 +201,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Init submodules
         run: |
@@ -219,9 +211,6 @@ jobs:
           git submodule update --init deps/qrenc/QR-Code-generator
           git submodule update --init deps/sca-hardening/SecAESSTM32
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Cache base image
         id: cache-base
         uses: actions/cache@v4
@@ -242,6 +231,7 @@ jobs:
       - name: Build emulator image
         run: |
           docker build \
+            --build-arg coinsupport="-DCOIN_SUPPORT=BTC" \
             -t ${{ env.EMU_IMAGE }} \
             -f scripts/emulator/Dockerfile \
             .
@@ -263,8 +253,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Init submodules
         run: |
@@ -301,13 +289,15 @@ jobs:
           echo "git_short=${GIT_SHORT}" >> "$GITHUB_OUTPUT"
           echo "Firmware version: ${FW_VERSION} (${GIT_SHORT})"
 
-      - name: Cross-compile firmware for ARM
+      - name: Cross-compile firmware for ARM (BTC-only)
         run: |
           docker run --rm \
             -v ${{ github.workspace }}:/root/keepkey-firmware:z \
             ${{ env.BASE_IMAGE }} /bin/sh -c "\
               mkdir /root/build && cd /root/build && \
               cmake -C /root/keepkey-firmware/cmake/caches/device.cmake /root/keepkey-firmware \
+                -DCOIN_SUPPORT=BTC \
+                -DVARIANTS=NoObsoleteVariants \
                 -DCMAKE_BUILD_TYPE=MinSizeRel \
                 -DCMAKE_COLOR_MAKEFILE=ON && \
               make && \
@@ -385,8 +375,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Init submodules
         run: |
@@ -397,16 +385,16 @@ jobs:
           git submodule update --init deps/qrenc/QR-Code-generator
           git submodule update --init deps/sca-hardening/SecAESSTM32
 
-      - name: Build and run tests (docker compose)
+      - name: Build and run tests (docker compose, BTC-only)
         working-directory: scripts/emulator
         run: |
           set +e
-          docker compose up --build firmware-unit
-          docker compose up --build python-keepkey
+          docker compose -f docker-compose-btc.yml up --build firmware-unit
+          docker compose -f docker-compose-btc.yml up --build python-keepkey
           set -e
           mkdir -p ${{ github.workspace }}/test-reports
-          docker cp "$(docker compose ps -a -q firmware-unit)":/kkemu/test-reports/. ${{ github.workspace }}/test-reports/ 2>/dev/null || true
-          docker cp "$(docker compose ps -a -q python-keepkey)":/kkemu/test-reports/. ${{ github.workspace }}/test-reports/ 2>/dev/null || true
+          docker cp "$(docker compose -f docker-compose-btc.yml ps -a -q firmware-unit)":/kkemu/test-reports/. ${{ github.workspace }}/test-reports/ 2>/dev/null || true
+          docker cp "$(docker compose -f docker-compose-btc.yml ps -a -q python-keepkey)":/kkemu/test-reports/. ${{ github.workspace }}/test-reports/ 2>/dev/null || true
           UNIT_STATUS=$(cat ${{ github.workspace }}/test-reports/firmware-unit/status 2>/dev/null || echo "1")
           PY_STATUS=$(cat ${{ github.workspace }}/test-reports/python-keepkey/status 2>/dev/null || echo "1")
           echo "Unit tests exit status: $UNIT_STATUS"
@@ -424,7 +412,7 @@ jobs:
       - name: Tear down
         if: always()
         working-directory: scripts/emulator
-        run: docker compose down -v || true
+        run: docker compose -f docker-compose-btc.yml down -v || true
 
   # ═══════════════════════════════════════════════════════════
   # STAGE 4: PUBLISH — manual trigger only, all tests must pass
@@ -440,8 +428,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Download emulator image
         uses: actions/download-artifact@v4

.github/workflows/release.yml

@@ -71,13 +71,15 @@ jobs:
         if: steps.cache-base.outputs.cache-hit == 'true'
         run: docker load -i /tmp/base-image.tar
 
-      - name: Cross-compile firmware
+      - name: Cross-compile firmware (BTC-only)
         run: |
           docker run --rm \
             -v ${{ github.workspace }}:/root/keepkey-firmware:z \
             ${{ env.BASE_IMAGE }} /bin/sh -c "\
               mkdir /root/build && cd /root/build && \
               cmake -C /root/keepkey-firmware/cmake/caches/device.cmake /root/keepkey-firmware \
+                -DCOIN_SUPPORT=BTC \
+                -DVARIANTS=NoObsoleteVariants \
                 -DCMAKE_BUILD_TYPE=MinSizeRel \
                 -DCMAKE_COLOR_MAKEFILE=ON && \
               make && \
@@ -147,9 +149,11 @@ jobs:
         if: steps.cache-base.outputs.cache-hit == 'true'
         run: docker load -i /tmp/base-image.tar
 
-      - name: Build and test emulator
+      - name: Build and test emulator (BTC-only)
         run: |
-          docker build -t kkemu-release -f scripts/emulator/Dockerfile .
+          docker build \
+            --build-arg coinsupport="-DCOIN_SUPPORT=BTC" \
+            -t kkemu-release -f scripts/emulator/Dockerfile .
           docker run --rm --entrypoint /bin/sh kkemu-release \
             -c "make xunit; RC=\$?; exit \$RC"
 
@@ -178,9 +182,9 @@ jobs:
           cat > release-body.md <<EOF
           ## KeepKey Firmware v${VER}
 
-          ### Reproducible Build Verification
+          ### Reproducible Build Verification (BTC-only)
           \`\`\`bash
-          ./scripts/build/docker/device/release.sh
+          ./scripts/build/docker/device/btcrelease.sh
           tail -c +257 bin/firmware.keepkey.bin | shasum -a 256
           \`\`\`
 

.gitignore

@@ -1,5 +1,5 @@
-bin
-build
+bin/
+build/
 .DS_Store
 .vscode/
 

CMakeLists.txt

@@ -110,6 +110,10 @@ else()
   add_definitions(-DDEBUG_LINK=0)
 endif()
 
+if("${COIN_SUPPORT}" STREQUAL "BTC")
+  add_definitions(-DBITCOIN_ONLY)
+endif()
+
 if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
   add_definitions(-DDEBUG_ON)
   add_definitions(-DMEMORY_PROTECT=0)

include/keepkey/firmware/coins.def

@@ -2,6 +2,7 @@
 //coin_name             coin_shortcut  address_type  maxfee_kb          p2sh        signed_message_header                    bip44_account_path  forkid/chain_id decimals    contract_address         xpub_magic       segwit        force_bip143  curve_name                         cashaddr_prefix       bech32_prefix    decred         xpub_magic_segwit_p2sh  xpub_mmagic_segwit_native  nanoaddr_prefix  taproot
 X(true, "Bitcoin",      true, "BTC",   true,   0,    true,     100000,  true,   5,  true, "Bitcoin Signed Message:\n",       true, 0x80000000,   false,   0,     true,   8,  false, NO_CONTRACT,      true, 76067358,  true, true,   true, false,  true, SECP256K1_STRING,            false, "",            true, "bc",      false, false,  true,  77429938,        true, 78792518,            false, "",       true, true    )
 X(true, "Testnet",      true, "TEST",  true, 111,    true,   10000000,  true, 196,  true, "Bitcoin Signed Message:\n",       true, 0x80000001,   false,   0,     true,   8,  false, NO_CONTRACT,      true, 70617039,  true, true,   true, false,  true, SECP256K1_STRING,            false, "",            true, "tb",      false, false,  true,  71979618,        true, 73342198,            false, "",       true, true    )
+#ifndef  BITCOIN_ONLY
 X(true, "BitcoinCash",  true, "BCH",   true,   0,    true,     500000,  true,   5,  true, "Bitcoin Signed Message:\n",       true, 0x80000091,   true,    0,     true,   8,  false, NO_CONTRACT,      true, 76067358,  true, false,  true, true,   true, SECP256K1_STRING,            true, "bitcoincash",  false, "",       false, false,  false,        0,        false,       0,            false, "",       true, false   )
 X(true, "Namecoin",     true, "NMC",   true,  52,    true,   10000000,  true,   5,  true, "Namecoin Signed Message:\n",      true, 0x80000007,   false,   0,     true,   8,  false, NO_CONTRACT,      true, 27108450,  true, false,  true, false,  true, SECP256K1_STRING,            false, "",            false, "",       false, false,  false,        0,        false,       0,            false, "",       true, false   )
 X(true, "Litecoin",     true, "LTC",   true,  48,    true,    1000000,  true,  50,  true, "Litecoin Signed Message:\n",      true, 0x80000002,   false,   0,     true,   8,  false, NO_CONTRACT,      true, 27108450,  true, true,   true, false,  true, SECP256K1_STRING,            false, "",            true, "ltc",     false, false,  true,  28471030,        true, 78792518,            false, "",       true, false   )
@@ -46,6 +47,6 @@ X(true, "Terra",        true, "LUNA", false,  NA,    false,        NA,  false, N
 X(true, "Kava",         true, "KAVA", false,  NA,    false,        NA,  false, NA,  false, {0},                              true, 0x800001cb,   false,   0,     true,   6,  false, NO_CONTRACT,      false, 0,        false, false, false, false, true, SECP256K1_STRING,            false, "",            false, "kava",   false, false,  false,        0,        false,       0,            false, "",       true, false   )
 X(true, "Secret",       true, "SCRT", false,  NA,    false,        NA,  false, NA,  false, {0},                              true, 0x80000211,   false,   0,     true,   6,  false, NO_CONTRACT,      false, 0,        false, false, false, false, true, SECP256K1_STRING,            false, "",            false, "secret", false, false,  false,        0,        false,       0,            false, "",       true, false   )
 X(true, "MAYAChain",    true, "CACAO", false,  NA,   false,        NA,  false, NA,  false, {0},                              true, 0x800003a3,   false,   0,     true,   10, false, NO_CONTRACT,      false, 0,        false, false, false, false, true, SECP256K1_STRING,            false, "",            false, "maya",   false, false,  false,        0,        false,       0,            false, "",       true, false   )
-
+#endif // BITCOIN_ONLY
 #undef X
 #undef NO_CONTRACT

include/keepkey/firmware/coins.h

@@ -44,14 +44,20 @@ enum {
   CONCAT(CoinIndex, __COUNTER__),
 #include "keepkey/firmware/coins.def"
 
+#ifdef BITCOIN_ONLY
+// For full-featured keepkey, this is defined in ethereum_tokens.h. For bitcoin only keepkey, need to
+// define it here because ethereum_tokens.h is not included in any file
+#define TOKENS_COUNT  0
+#else
 #define X(INDEX, NAME, SYMBOL, DECIMALS, CONTRACT_ADDRESS) \
   CONCAT(CoinIndex, __COUNTER__),
 #include "keepkey/firmware/tokens.def"
-
+#endif
   CoinIndexLast,
   CoinIndexFirst = 0
 };
 
+
 #define COINS_COUNT ((int)CoinIndexLast - (int)CoinIndexFirst)
 #define NODE_STRING_LENGTH 50
 

include/keepkey/firmware/fsm.h

@@ -77,6 +77,7 @@ void fsm_msgWordAck(WordAck *msg);
 void fsm_msgCharacterAck(CharacterAck *msg);
 void fsm_msgApplyPolicies(ApplyPolicies *msg);
 
+#ifndef BITCOIN_ONLY
 // ethereum
 void fsm_msgEthereumGetAddress(EthereumGetAddress *msg);
 void fsm_msgEthereumSignTx(EthereumSignTx *msg);
@@ -118,6 +119,8 @@ void fsm_msgMayachainGetAddress(const MayachainGetAddress *msg);
 void fsm_msgMayachainSignTx(const MayachainSignTx *msg);
 void fsm_msgMayachainMsgAck(const MayachainMsgAck *msg);
 
+#endif  // BITCOIN_ONLY
+
 #if DEBUG_LINK
 // void fsm_msgDebugLinkDecision(DebugLinkDecision *msg);
 void fsm_msgDebugLinkGetState(DebugLinkGetState *msg);

include/keepkey/transport/interface.h

@@ -20,9 +20,15 @@
 #ifndef INTERFACE_H
 #define INTERFACE_H
 
+#include "types.pb.h"
 // Allow this file to be used from C++ by renaming an unfortunately named field:
 #define delete del
 #include "messages.pb.h"
+#undef delete
+
+#ifndef BITCOIN_ONLY
+// Allow this file to be used from C++ by renaming an unfortunately named field:
+#define delete del
 #include "messages-nano.pb.h"
 #undef delete
 
@@ -36,7 +42,8 @@
 #include "messages-thorchain.pb.h"
 #include "messages-mayachain.pb.h"
 
-#include "types.pb.h"
+#endif  // BITCOIN_ONLY
+
 #include "trezor_transport.h"
 
 #ifndef EMULATOR

include/keepkey/variant/keepkey.h

@@ -1,16 +1,51 @@
+/*
+ * This file is part of the KeepKey project.
+ *
+ * Copyright (C) 2025 markrypto
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef KEEPKEY_VARIANT_KEEPKEY_H
 #define KEEPKEY_VARIANT_KEEPKEY_H
 
 #include "keepkey/board/variant.h"
 
-#define VARIANTINFO_KEEPKEY                          \
-  .version = 1, .name = "KeepKey", .logo = &kk_logo, \
-  .logo_reversed = &kk_logo_reversed,                \
-  .screensaver_timeout = ONE_SEC * 60 * 10, .screensaver = &kk_screensaver,
+#ifdef BITCOIN_ONLY
+// use the bitcoin-only logo
+#define VARIANTINFO_KEEPKEY                         \
+.version = 1, .name = "KeepKeyBTC", .logo = &kkbtc_logo, \
+.logo_reversed = &kkbtc_logo_reversed,                \
+.screensaver_timeout = ONE_SEC * 60 * 10, .screensaver = &kkbtc_screensaver,
+
+extern const VariantInfo variant_keepkey;
+extern const VariantAnimation kkbtc_logo;
+extern const VariantAnimation kkbtc_logo_reversed;
+extern const VariantAnimation kkbtc_screensaver;
+
+#else
+
+#define VARIANTINFO_KEEPKEY                         \
+.version = 1, .name = "KeepKey", .logo = &kk_logo, \
+.logo_reversed = &kk_logo_reversed,                \
+.screensaver_timeout = ONE_SEC * 60 * 10, .screensaver = &kk_screensaver,
 
 extern const VariantInfo variant_keepkey;
 extern const VariantAnimation kk_logo;
 extern const VariantAnimation kk_logo_reversed;
 extern const VariantAnimation kk_screensaver;
 
+#endif // BITCOIN_ONLY
+
 #endif

lib/board/variant.c

@@ -118,7 +118,11 @@ const VariantInfo *__attribute__((weak)) variant_getInfo(void) {
     case MODEL_KEEPKEY:
       return &variant_keepkey;
     case MODEL_SALT:
+#ifndef BITCOIN_ONLY
       return &variant_salt;
+#else 
+      return &variant_keepkey;
+#endif
     case MODEL_FOX:
       return &variant_keepkey;
     case MODEL_KASPERSKY:
@@ -152,7 +156,11 @@ const VariantAnimation *variant_getLogo(bool reversed) {
 
 const char *variant_getName(void) {
 #ifdef EMULATOR
-  return "Emulator";
+  #ifdef BITCOIN_ONLY
+    return "EmulatorBTC";
+  #else
+    return "Emulator";
+  #endif
 #else
   if (name) {
     return name;