1 files changed, 95 insertions, 0 deletions
diff --git a/board/galtic/usb_pd_policy.c b/board/galtic/usb_pd_policy.c
new file mode 100644
index 0000000000..9d53f20047
--- /dev/null
+++ b/board/galtic/usb_pd_policy.c
@@ -0,0 +1,95 @@
+/* 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 "battery_smart.h"
+#include "charge_manager.h"
+#include "charger.h"
+#include "chipset.h"
+#include "common.h"
+#include "console.h"
+#include "driver/charger/sm5803.h"
+#include "driver/tcpm/tcpci.h"
+#include "usb_pd.h"
+
+#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
+#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
+
+int pd_check_vconn_swap(int port)
+{
+	/* Allow VCONN swaps if the AP is on */
+	return chipset_in_state(CHIPSET_STATE_ANY_SUSPEND | CHIPSET_STATE_ON);
+}
+
+void pd_power_supply_reset(int port)
+{
+	int prev_en;
+
+	if (port < 0 || port >= board_get_usb_pd_port_count())
+		return;
+
+	prev_en = charger_is_sourcing_otg_power(port);
+
+	/* Disable Vbus */
+	charger_enable_otg_power(port, 0);
+
+	/* Discharge Vbus if previously enabled */
+	if (prev_en)
+		sm5803_set_vbus_disch(port, 1);
+
+#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
+	/* Give back the current quota we are no longer using */
+	charge_manager_source_port(port, 0);
+#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+}
+
+int pd_set_power_supply_ready(int port)
+{
+	enum ec_error_list rv;
+
+	/* Disable sinking */
+	rv = sm5803_vbus_sink_enable(port, 0);
+	if (rv)
+		return rv;
+
+	/* Disable Vbus discharge */
+	sm5803_set_vbus_disch(port, 0);
+
+	/* Provide Vbus */
+	charger_enable_otg_power(port, 1);
+
+#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
+	/* Ensure we advertise the proper available current quota */
+	charge_manager_source_port(port, 1);
+#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+
+	return EC_SUCCESS;
+}
+
+__override bool pd_check_vbus_level(int port, enum vbus_level level)
+{
+	int vbus_voltage;
+
+	/* If we're unable to speak to the charger, best to guess false */
+	if (charger_get_vbus_voltage(port, &vbus_voltage))
+		return false;
+
+	if (level == VBUS_SAFE0V)
+		return vbus_voltage < PD_V_SAFE0V_MAX;
+	else if (level == VBUS_PRESENT)
+		return vbus_voltage > PD_V_SAFE5V_MIN;
+	else
+		return vbus_voltage < PD_V_SINK_DISCONNECT_MAX;
+}
+
+int pd_snk_is_vbus_provided(int port)
+{
+	return sm5803_is_vbus_present(port);
+}