TCPMv2: Unit Test TD.PD.SRC3.E26

Add PD compliance test TD.PD.SRC3.E26.Soft_Reset sent regardless of
Rp value.

As Consumer (UFP), the Tester forces the UUT to send Soft_Reset and
verifies Soft_Reset is sent regardless of the Rp value is SinkTxOK or
SinkTxNG.

BUG=b:161835483
BRANCH=none
TEST=make run-usb_tcpmv2_compliance

Signed-off-by: Edward Hill <ecgh@chromium.org>
Change-Id: I2bdd61abad611edc41400f6b96d65bd840e70e6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2595539
Reviewed-by: Denis Brockus <dbrockus@chromium.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/test/usb_tcpmv2_td_pd_src3_e26.c b/test/usb_tcpmv2_td_pd_src3_e26.c
new file mode 100644
index 0000000000..cd54ce82a5
--- /dev/null
+++ b/test/usb_tcpmv2_td_pd_src3_e26.c
@@ -0,0 +1,55 @@
+/* Copyright 2020 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 "tcpci.h"
+#include "test_util.h"
+#include "timer.h"
+#include "usb_tcpmv2_compliance.h"
+
+/*****************************************************************************
+ * TD.PD.SRC3.E26.Soft_Reset sent regardless of Rp value
+ *
+ * Description:
+ *	As Consumer (UFP), the Tester forces the UUT to send Soft_Reset and
+ *	verifies Soft_Reset is sent regardless of the Rp value is SinkTxOK or
+ *	SinkTxNG.
+ */
+int test_td_pd_src3_e26(void)
+{
+	/*
+	 * TD.PD.SRC3.E26.Soft_Reset sent regardless of Rp value
+	 * a) Run PROC.PD.E1 Bring-up according to the UUT role.
+	 * b) The Tester waits until it can start an AMS (Run PROC.PD.E3)...
+	 */
+	TEST_EQ(tcpci_startup(), EC_SUCCESS, "%d");
+	TEST_EQ(proc_pd_e1(PD_ROLE_DFP), EC_SUCCESS, "%d");
+	TEST_EQ(proc_pd_e3(), EC_SUCCESS, "%d");
+
+	/*
+	 * ...and sends a Get_Source_Cap message to the UUT.
+	 */
+	partner_send_msg(PD_MSG_SOP, PD_CTRL_GET_SOURCE_CAP, 0, 0, NULL);
+
+	/*
+	 * c) Upon receipt of the Source_Capabilities Message, the Tester
+	 * doesn’t reply with GoodCRC.
+	 */
+	TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, 0, PD_DATA_SOURCE_CAP),
+		EC_SUCCESS, "%d");
+	mock_set_alert(TCPC_REG_ALERT_TX_FAILED);
+
+	/*
+	 * d) The Tester verifies that a Soft_Reset message is sent by the UUT
+	 * within tReceive max (1.1 ms) + tSoftReset max (15 ms).
+	 */
+	TEST_EQ(verify_tcpci_tx_timeout(
+			TCPC_TX_SOP, PD_CTRL_SOFT_RESET, 0, 15 * MSEC),
+		EC_SUCCESS, "%d");
+	mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
+
+	return EC_SUCCESS;
+}