- Detect errors in pn53x_get_reg();

- Add a test case to confirm an endianness problem on little-endian machines.

test/Makefile.am

@@ -8,13 +8,17 @@ TESTS = run-test.sh
 TESTS_ENVIRONMENT = NO_MAKE=yes CUTTER="$(CUTTER)"
 
 noinst_LTLIBRARIES = \
-		     test_access_storm.la
+		     test_access_storm.la \
+		     test_register_endianness.la
 
 AM_LDFLAGS = -module -rpath $(libdir) -avoid-version -no-undefined
 
 test_access_storm_la_SOURCES = test_access_storm.c
 test_access_storm_la_LIBADD = $(top_builddir)/libnfc/libnfc.la
 
+test_register_endianness_la_SOURCES = test_register_endianness.c
+test_register_endianness_la_LIBADD = $(top_builddir)/libnfc/libnfc.la
+
 echo-cutter:
 		@echo $(CUTTER)
 

test/test_register_endianness.c

@@ -0,0 +1,39 @@
+#include <cutter.h>
+
+#include <nfc/nfc.h>
+
+#define MAX_DEVICE_COUNT 1
+#define MAX_TARGET_COUNT 1
+
+bool pn53x_get_reg(nfc_device_t* pnd, uint16_t ui16Reg, uint8_t* ui8Value);
+
+void
+test_register_endianness (void)
+{
+    nfc_device_desc_t devices[MAX_DEVICE_COUNT];
+    size_t device_count;
+    bool res;
+
+    nfc_list_devices (devices, MAX_DEVICE_COUNT, &device_count);
+    if (!device_count)
+	cut_omit ("No NFC device found");
+
+    nfc_device_t *device;
+
+    device = nfc_connect (&(devices[0]));
+    cut_assert_not_null (device, cut_message ("nfc_connect"));
+
+    uint8_t value;
+
+    /* Read valid XRAM memory */
+    res = pn53x_get_reg (device, 0xF0FF, &value);
+    cut_assert_true (res, cut_message ("read register 0xF0FF"));
+    nfc_perror (device, "get");
+
+    /* Read invalid SFR register */
+    res = pn53x_get_reg (device, 0xFFF0, &value);
+    cut_assert_false (res, cut_message ("read register 0xFFF0"));
+    nfc_perror (device, "get");
+
+    nfc_disconnect (device);
+}