mocks: add tcpc and usb mux mocks

BRANCH=none
BUG=none
TEST=use them in CL stack with tests

Change-Id: I8a970dc65f7395264a8c536977951ae305e9c24f
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1868831
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Edward Hill <ecgh@chromium.org>

common/mock/build.mk

@@ -6,4 +6,6 @@
 
 mock-$(HAS_MOCK_FPSENSOR) += fpsensor_mock.o
 mock-$(HAS_MOCK_ROLLBACK) += rollback_mock.o
+mock-$(HAS_MOCK_TCPC) += tcpc_mock.o
 mock-$(HAS_MOCK_TIMER) += timer_mock.o
+mock-$(HAS_MOCK_USB_MUX) += usb_mux_mock.o

common/mock/tcpc_mock.c

@@ -0,0 +1,163 @@
+/* Copyright 2019 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.
+ */
+ /* Mock for the TCPC interface */
+
+#include "common.h"
+#include "console.h"
+#include "usb_pd_tcpm.h"
+#include "tcpc_mock.h"
+#include "memory.h"
+
+/* Public API for controlling/inspecting this mock */
+struct mock_tcpc_ctrl mock_tcpc;
+
+void mock_tcpc_reset(void)
+{
+	memset(&mock_tcpc, 0, sizeof(mock_tcpc));
+}
+
+static int mock_init(int port)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_release(int port)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_get_cc(int port,
+	enum tcpc_cc_voltage_status *cc1,
+	enum tcpc_cc_voltage_status *cc2)
+{
+	*cc1 = mock_tcpc.cc1;
+	*cc2 = mock_tcpc.cc2;
+	return EC_SUCCESS;
+}
+
+static int mock_get_vbus_level(int port)
+{
+	return mock_tcpc.vbus_level;
+}
+
+static int mock_select_rp_value(int port, int rp)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_set_cc(int port, int pull)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_set_polarity(int port, int polarity)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_set_vconn(int port, int enable)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_set_msg_header(int port, int power_role, int data_role)
+{
+	++mock_tcpc.num_calls_to_set_header;
+
+	mock_tcpc.power_role = power_role;
+	mock_tcpc.data_role = data_role;
+
+	if (!mock_tcpc.should_print_header_changes)
+		return EC_SUCCESS;
+
+	ccprints("Setting TCPC header to %s %s",
+		power_role == PD_ROLE_SOURCE ? "SRC" : "SNK",
+		data_role == PD_ROLE_UFP ? "UFP" : "DFP");
+
+	return EC_SUCCESS;
+}
+
+static int mock_set_rx_enable(int port, int enable)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_get_message_raw(int port, uint32_t *payload, int *head)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_transmit(int port,
+	enum tcpm_transmit_type type, uint16_t header, const uint32_t *data)
+{
+	return EC_SUCCESS;
+}
+
+void mock_tcpc_alert(int port)
+{
+}
+
+void mock_tcpc_discharge_vbus(int port, int enable)
+{
+}
+
+__maybe_unused static int mock_drp_toggle(int port)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_get_chip_info(int port, int live,
+	struct ec_response_pd_chip_info_v1 **info)
+{
+	return EC_SUCCESS;
+}
+
+__maybe_unused static int mock_set_snk_ctrl(int port, int enable)
+{
+	return EC_SUCCESS;
+}
+
+__maybe_unused static int mock_set_src_ctrl(int port, int enable)
+{
+	return EC_SUCCESS;
+}
+
+__maybe_unused static int mock_enter_low_power_mode(int port)
+{
+	return EC_SUCCESS;
+}
+
+void mock_set_frs_enable(int port, int enable)
+{
+}
+
+const struct tcpm_drv mock_tcpc_driver = {
+	.init  = &mock_init,
+	.release  = &mock_release,
+	.get_cc  = &mock_get_cc,
+	.get_vbus_level  = &mock_get_vbus_level,
+	.select_rp_value  = &mock_select_rp_value,
+	.set_cc  = &mock_set_cc,
+	.set_polarity  = &mock_set_polarity,
+	.set_vconn  = &mock_set_vconn,
+	.set_msg_header  = &mock_set_msg_header,
+	.set_rx_enable  = &mock_set_rx_enable,
+	.get_message_raw  = &mock_get_message_raw,
+	.transmit  = &mock_transmit,
+	.tcpc_alert  = &mock_tcpc_alert,
+	.tcpc_discharge_vbus  = &mock_tcpc_discharge_vbus,
+#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
+	.drp_toggle  = &mock_drp_toggle,
+#endif
+	.get_chip_info  = &mock_get_chip_info,
+#ifdef CONFIG_USBC_PPC
+	.set_snk_ctrl  = &mock_set_snk_ctrl,
+	.set_src_ctrl  = &mock_set_src_ctrl,
+#endif
+#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
+	.enter_low_power_mode  = &mock_enter_low_power_mode,
+#endif
+	.set_frs_enable  = &mock_set_frs_enable,
+};

common/mock/tcpc_mock.h

@@ -0,0 +1,25 @@
+/* Copyright 2019 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.
+ */
+ /* Mock for the TCPC interface */
+
+#include "usb_pd_tcpm.h"
+#include "usb_pd.h"
+
+/* Controller for TCPC state */
+struct mock_tcpc_ctrl {
+	enum tcpc_cc_voltage_status cc1;
+	enum tcpc_cc_voltage_status cc2;
+	int vbus_level;
+	enum pd_power_role power_role;
+	enum pd_data_role data_role;
+	int num_calls_to_set_header;
+	int should_print_header_changes;
+	};
+
+/* Reset this TCPC mock */
+void mock_tcpc_reset(void);
+
+extern const struct tcpm_drv mock_tcpc_driver;
+extern struct mock_tcpc_ctrl mock_tcpc;

common/mock/usb_mux_mock.c

@@ -0,0 +1,51 @@
+/* Copyright 2019 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.
+ */
+/* Mock USB Type-C mux */
+
+#include "common.h"
+#include "console.h"
+#include "usb_mux.h"
+#include "usb_mux_mock.h"
+#include "memory.h"
+
+/* Public API for controlling/inspecting this mock */
+struct mock_usb_mux_ctrl mock_usb_mux;
+
+void mock_usb_mux_reset(void)
+{
+	memset(&mock_usb_mux, 0, sizeof(mock_usb_mux));
+}
+
+static int mock_init(int port)
+{
+	return EC_SUCCESS;
+}
+
+static int mock_set(int port, mux_state_t mux_state)
+{
+	mock_usb_mux.state = mux_state;
+	++mock_usb_mux.num_set_calls;
+	ccprints("Called into mux with %d", mux_state);
+
+	return EC_SUCCESS;
+}
+
+int mock_get(int port, mux_state_t *mux_state)
+{
+	*mux_state = mock_usb_mux.state;
+	return EC_SUCCESS;
+}
+
+static int mock_enter_low_power_mode(int port)
+{
+	return EC_SUCCESS;
+}
+
+const struct usb_mux_driver mock_usb_mux_driver = {
+	.init = &mock_init,
+	.set = &mock_set,
+	.get = &mock_get,
+	.enter_low_power_mode = &mock_enter_low_power_mode,
+};

common/mock/usb_mux_mock.h

@@ -0,0 +1,19 @@
+/* Copyright 2019 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.
+ */
+/* Mock USB Type-C mux */
+
+#include "usb_mux.h"
+
+/* Controller for mux state */
+struct mock_usb_mux_ctrl {
+	mux_state_t state;
+	int num_set_calls;
+};
+
+/* Resets the state of the mock */
+void mock_usb_mux_reset(void);
+
+extern const struct usb_mux_driver mock_usb_mux_driver;
+extern struct mock_usb_mux_ctrl mock_usb_mux;