Stabilize HF/SAM reads and reduce memory pressure (for running alongside qFlipper)

Makefile

@@ -17,26 +17,40 @@ test-host:
 	cc $(HOST_TEST_CFLAGS) \
 		lib/host_tests/vendor/munit/munit.c \
 		lib/host_tests/test_main.c \
+			lib/host_tests/test_board_identity.c \
 			lib/host_tests/test_lrc.c \
 			lib/host_tests/test_board_power_lifecycle.c \
 			lib/host_tests/test_hf_read_lifecycle.c \
+			lib/host_tests/test_hf_buffer_pool.c \
 			lib/host_tests/test_sam_startup_ui.c \
 			lib/host_tests/test_sam_key_label.c \
 		lib/host_tests/test_ccid_logic.c \
+		lib/host_tests/test_uart_tx_logic.c \
+		lib/host_tests/test_uart_rx_logic.c \
 		lib/host_tests/test_t1_existing.c \
 		lib/host_tests/test_t1_protocol.c \
 		lib/host_tests/test_snmp.c \
 			lib/host_tests/test_uhf_status_label.c \
 			lib/host_tests/test_credential_sio_label.c \
 			lib/host_tests/test_hf_read_plan.c \
+			lib/host_tests/test_hf_bridge_policy.c \
+			lib/host_tests/test_hf_14a_session.c \
+			lib/host_tests/test_hf_sam_response_view.c \
 			lib/host_tests/test_wiegand_plugin.c \
 			lib/host_tests/test_runtime_policy.c \
+			lib/host_tests/test_ui_memory_policy.c \
 		lib/host_tests/t1_test_stubs.c \
 		lib/host_tests/bit_buffer_mock.c \
 			lrc.c \
+			board_identity.c \
 			board_power_lifecycle.c \
 			sam_startup_ui.c \
 			ccid_logic.c \
+			hf_buffer_pool.c \
+			uart_tx_logic.c \
+			uart_rx_logic.c \
+			allocation_policy.c \
+			worker_loop_policy.c \
 		credential_sio_label.c \
 		t_1_logic.c \
 		t_1.c \
@@ -48,9 +62,13 @@ test-host:
 			uhf_tag_config_view.c \
 			uhf_snmp_probe.c \
 			hf_read_lifecycle.c \
+			hf_bridge_policy.c \
+			hf_14a_session.c \
+			hf_sam_response_view.c \
 			seader_hf_read_plan.c \
 			wiegand_interface_fal/wiegand.c \
 		runtime_policy.c \
+		ui_memory_policy.c \
 		-o build/host_tests/seader_tests
 	./build/host_tests/seader_tests
 

allocation_policy.c

@@ -0,0 +1,16 @@
+#include "allocation_policy.h"
+
+#include <stdint.h>
+
+bool seader_size_multiply_checked(size_t count, size_t size, size_t* out) {
+    if(!out) {
+        return false;
+    }
+
+    if(count != 0U && size > SIZE_MAX / count) {
+        return false;
+    }
+
+    *out = count * size;
+    return true;
+}

allocation_policy.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+
+bool seader_size_multiply_checked(size_t count, size_t size, size_t* out);

application.fam

@@ -11,6 +11,7 @@ App(
         "ASN_DISABLE_OER_SUPPORT",
         "ASN_DISABLE_XER_SUPPORT",
         "ASN_DISABLE_RANDOM_FILL",
+        "ASN_DISABLE_PRINT_SUPPORT",
     ],
     requires=[
         "gui", "storage", "nfc",
@@ -45,12 +46,13 @@ App(
                 "-DASN_DISABLE_OER_SUPPORT",
                 "-DASN_DISABLE_XER_SUPPORT",
                 "-DASN_DISABLE_RANDOM_FILL",
+                "-DASN_DISABLE_PRINT_SUPPORT",
                 "-Os",
             ],
         ),
         Lib(
             name="loclass",
-            cflags=["-O3"],
+            cflags=["-Os"],
         ),
     ],
     fap_weburl="https://seader.ericbetts.dev",
@@ -71,6 +73,6 @@ App(
     apptype=FlipperAppType.PLUGIN,
     entry_point="plugin_hf_ep",
     requires=["seader"],
-    sources=["hf_interface_fal/hf.c"],
+    sources=["hf_interface_fal/hf.c", "hf_bridge_policy.c", "hf_buffer_pool.c", "hf_14a_session.c"],
     fal_embedded=True,
 )

board_identity.c

@@ -0,0 +1,17 @@
+#include "board_identity.h"
+
+SeaderBoardClass seader_board_classify(bool pa4_high, bool pc1_high, bool pc0_high) {
+    if(pa4_high) {
+        return SeaderBoardClassUhfCarrier;
+    }
+
+    if(pc1_high || pc0_high) {
+        return SeaderBoardClassSamOnly;
+    }
+
+    return SeaderBoardClassNone;
+}
+
+bool seader_board_class_supports_uhf(SeaderBoardClass board_class) {
+    return board_class == SeaderBoardClassUhfCarrier;
+}

board_identity.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <stdbool.h>
+
+typedef enum {
+    SeaderBoardClassUnknown = 0,
+    SeaderBoardClassNone,
+    SeaderBoardClassSamOnly,
+    SeaderBoardClassUhfCarrier,
+} SeaderBoardClass;
+
+SeaderBoardClass seader_board_classify(bool pa4_high, bool pc1_high, bool pc0_high);
+bool seader_board_class_supports_uhf(SeaderBoardClass board_class);