TCPMv2: TD.PD.VNDI3.E3 VDM Identity Unit Test

Adds a unit test for TD.PD.VNDI3.E3 VDM Identity.  Note that this
currently only covers our default case of having no information to
discover.  There are additional items to verify if we expand the unit
tests to have VDM information.

BRANCH=None
BUG=b:181194535
TEST=make -j buildall

Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: I26b517f268eb9133fdd565783d44bbef2336048c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2893486
Reviewed-by: Denis Brockus <dbrockus@chromium.org>

1 files changed, 114 insertions, 0 deletions

diff --git a/test/usb_tcpmv2_td_pd_vndi3_e3.c b/test/usb_tcpmv2_td_pd_vndi3_e3.c
new file mode 100644
index 0000000000..93e01ffcd0
--- /dev/null
+++ b/test/usb_tcpmv2_td_pd_vndi3_e3.c
@@ -0,0 +1,114 @@
+/* Copyright 2021 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "mock/tcpci_i2c_mock.h"
+#include "task.h"
+#include "tcpm/tcpci.h"
+#include "test_util.h"
+#include "timer.h"
+#include "usb_tcpmv2_compliance.h"
+#include "usb_tc_sm.h"
+
+uint32_t vdo = VDO(USB_SID_PD, 1,
+		   VDO_SVDM_VERS(VDM_VER20) |
+		   CMD_DISCOVER_IDENT);
+
+
+/*****************************************************************************
+ * TD.PD.VNDI3.E3.VDM Identity
+ *
+ * Description:
+ *	This test verifies that the VDM Information is as specified in the
+ *	vendor-supplied information.
+ */
+static int td_pd_vndi3_e3(enum pd_data_role data_role)
+{
+	partner_set_pd_rev(PD_REV30);
+
+	TEST_EQ(tcpci_startup(), EC_SUCCESS, "%d");
+
+	/*
+	 * a) Run PROC.PD.E1 Bring-up according to the UUT role.
+	 */
+	TEST_EQ(proc_pd_e1(data_role, INITIAL_AND_ALREADY_ATTACHED),
+		EC_SUCCESS, "%d");
+
+	/*
+	 * Make sure we are idle. Reject everything that is pending
+	 */
+	TEST_EQ(handle_attach_expected_msgs(data_role), EC_SUCCESS, "%d");
+
+	/*
+	 * b) Tester executes a Discover Identity exchange
+	 */
+	partner_send_msg(PD_MSG_SOP, PD_DATA_VENDOR_DEF,
+			 1, 0, &vdo);
+
+	/*
+	 * c) If the UUT is not a cable and if Responds_To_Discov_SOP is set to
+	 * No, the tester checks that the UUT replies Not_Supported.  The test
+	 * stops here in this case.
+	 */
+	TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, PD_CTRL_NOT_SUPPORTED, 0),
+		EC_SUCCESS, "%d");
+	mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
+
+	/*
+	 * TODO: Items d)-i) could be verified if the unit tests are configured
+	 * to reply to Identity messages.
+	 *
+	 * d) For Cables, the Tester checks the consistency of
+	 * Specification_Revision
+	 *
+	 * e) For all devices, the Tester checks in the ID Header consistency
+	 * of:
+	 *	1. Product_Type(UFP)
+	 *	2. Product Type(Cable Plug)
+	 *	3. Product Type (DFP)
+	 *	4. USB_VID(_SOP)
+	 *	5. Modal_Operation_Supported(_SOP)
+	 *	6. Data_Capable_as_USB_Host(_SOP)
+	 *	7. Data_Capable_as_USB_Device(_SOP)
+	 *
+	 * f) For all devices, the Tester checks in the Cert Stat VDO
+	 * consistency of:
+	 *	1. XID(_SOP)
+	 *
+	 * g) For all devices, the Tester checks in the Product VDO consistency
+	 * of:
+	 *	1. PID(_SOP)
+	 *	2. bcdDevice(_SOP)
+	 *
+	 * h) For Cables, the Tester checks in the Cable VDO consistency of:
+	 *	1. Cable_HW_Vers
+	 *	2. Cable_FW_Vers
+	 *	3. Type_C_to_Type_C_Capt_Vdm_V2
+	 *	4. Cable_Latency
+	 *	5. Cable_Termination_Type
+	 *	6. Max_VBUS_Voltage_Vdm_V2
+	 *	7. Cable_VBUS_Current
+	 *	8. VBUS_through_cable
+	 *	9. Cable_SOP''_controller
+	 *	10. Cable_Superspeed_Support
+	 *
+	 * i) For Alt Mode Adapters, the Tester checks in the AMA VDO
+	 * consistency of:
+	 *	1. AMA_HW_Vers
+	 *	2. AMA_FW_Vers
+	 *	3. AMA_VCONN_power
+	 *	4. AMA_VCONN_reqd
+	 *	5. AMA_VBUS_reqd
+	 *	6. AMA_Superspeed_Support
+	 */
+	return EC_SUCCESS;
+}
+int test_td_pd_vndi3_e3_dfp(void)
+{
+	return td_pd_vndi3_e3(PD_ROLE_DFP);
+}
+int test_td_pd_vndi3_e3_ufp(void)
+{
+	return td_pd_vndi3_e3(PD_ROLE_UFP);
+}