1 files changed, 66 insertions, 0 deletions
diff --git a/source/tests/basic.c b/source/tests/basic.c
new file mode 100644
index 0000000..8645b19
--- /dev/null
+++ b/source/tests/basic.c
@@ -0,0 +1,66 @@
+#define ET_TEST_IMPL
+#include "../test.h"
+#include <inttypes.h>
+
+et_test_status test_exi_readwrite(struct et_test_plan *plan, void *data, size_t data_sz, et_test_error base, struct et_next_state *next_state) {
+  struct et_test_plan_entry *cur = test_current(plan);
+  int chan = plan->exi_channel;
+  et_test_status status = TEST_PASS;
+  s32 exi_res;
+
+  if ((exi_res = EXI_Lock(chan, EXI_DEVICE_0, NULL)) <= 0) {
+    status = TEST_ERROR(base);
+    test_plan_entry_set_error(cur, "failed to lock EXI channel: %" PRId32, exi_res);
+    goto fail_lock;
+  }
+
+  if ((exi_res = EXI_Select(chan, EXI_DEVICE_0, EXI_SPEED32MHZ)) <= 0) {
+    status = TEST_ERROR(base + 1);
+    test_plan_entry_set_error(cur, "failed to select EXI channel: %" PRId32, exi_res);
+    goto fail_select;
+  }
+
+  if ((exi_res = EXI_Imm(chan, data, data_sz, EXI_READWRITE, NULL)) <= 0) {
+    status = TEST_ERROR(base + 2);
+    test_plan_entry_set_error(cur, "failed to send EXI data: %" PRId32, exi_res);
+    goto fail_data;
+  }
+
+  if ((exi_res = EXI_Sync(chan)) <= 0) {
+    status = TEST_ERROR(base + 3);
+    test_plan_entry_set_error(cur, "failed to complete transfer: %" PRId32, exi_res);
+    goto fail_data;
+  }
+
+fail_data:
+  EXI_Deselect(chan);
+
+fail_select:
+  EXI_Unlock(chan);
+
+fail_lock:
+  cur->status = status;
+  return status;
+}
+
+static int check_id_tick(const struct et_state *state, void *data, struct et_next_state *next_state) {
+  struct et_test_state_private_base *priv = data;
+  struct et_test_plan *test_plan = priv->plan;
+  struct et_test_plan_entry *cur = test_current(test_plan);
+  et_test_status status = TEST_PASS;
+  u16 command = 0x9000;
+
+  if ((status = test_exi_readwrite(test_plan, &command, sizeof(command), TEST_EPRIV_BASE, next_state)) != TEST_PASS) {
+    return test_next(test_plan, next_state);
+  }
+
+  if (command != 0x0470) {
+    test_plan_entry_set_error(cur, "bad identifier from gecko: expected 0x0470, got 0x%04" PRIx16, command);
+    status = TEST_FAIL;
+  }
+
+  cur->status = TEST_PASS;
+  return test_next(test_plan, next_state);
+}
+
+TEST_DEF(check_id, "Identify Gecko (0x09)", TEST_PAUSE_ON_ERROR, NULL, check_id_tick, NULL, struct et_test_state_private_base);