BB retimer: Set UFP mode of BB retimer

This CL enables getting the enter mode information received from DFP
and sets the following BB retimer bits accordingly.
Bit 2: RE_TIMER_DRIVER
Bit 18: CABLE_TYPE
Bit 19: VPRO_DOCK_DETECTED
Bit 20: TBT_ACTIVE_LINK_TRAINING
Bit 22: ACTIVE/PASSIVE
Bits 27-25: TBT Cable speed
Bits 29-28: TBT_GEN_SUPPORT

BUG=b:157163664
BRANCH=None
TEST=Tested with volteer as UFP, able to set the retimer bits

Signed-off-by: Ayushee <ayushee.shah@intel.com>
Change-Id: I661aa4630b42fbaa136ff3855c4f70e3dee61546
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2382634
Reviewed-by: Keith Short <keithshort@chromium.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/common/usb_pd_alt_mode_ufp.c b/common/usb_pd_alt_mode_ufp.c
new file mode 100644
index 0000000000..3db60166d2
--- /dev/null
+++ b/common/usb_pd_alt_mode_ufp.c
@@ -0,0 +1,22 @@
+/* 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.
+ *
+ * Alternate Mode Upstream Facing Port (UFP) USB-PD module.
+ */
+#include "usb_pd.h"
+#include "usb_tbt_alt_mode.h"
+
+static uint32_t ufp_enter_mode[CONFIG_USB_PD_PORT_MAX_COUNT];
+
+/* Save port partner's enter mode message */
+void pd_ufp_set_enter_mode(int port, uint32_t *payload)
+{
+	ufp_enter_mode[port] = payload[1];
+}
+
+/* Return port partner's enter mode message */
+uint32_t pd_ufp_get_enter_mode(int port)
+{
+	return ufp_enter_mode[port];
+}