1 files changed, 69 insertions, 0 deletions
diff --git a/board/dibbi/usb_pd_policy.c b/board/dibbi/usb_pd_policy.c
new file mode 100644
index 0000000000..9d573b9c61
--- /dev/null
+++ b/board/dibbi/usb_pd_policy.c
@@ -0,0 +1,69 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "charge_manager.h"
+#include "charger.h"
+#include "chipset.h"
+#include "common.h"
+#include "console.h"
+#include "driver/tcpm/tcpci.h"
+#include "gpio.h"
+#include "usb_pd.h"
+
+#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ##args)
+#define CPRINTS(format, args...) cprints(CC_USBPD, format, ##args)
+
+__override int pd_check_power_swap(int port)
+{
+	/* If type-c port is supplying power, we never swap PR (to source) */
+	if (port == charge_manager_get_active_charge_port())
+		return 0;
+	/*
+	 * Allow power swap as long as we are acting as a dual role device,
+	 * otherwise assume our role is fixed (not in S0 or console command
+	 * to fix our role).
+	 */
+	return (pd_get_dual_role(port) == PD_DRP_TOGGLE_ON ? 1 : 0);
+}
+
+int pd_check_vconn_swap(int port)
+{
+	/* Allow VCONN swaps if the AP is on */
+	return gpio_get_level(GPIO_EN_PP5000_U);
+}
+
+void pd_power_supply_reset(int port)
+{
+	if (port < 0 || port >= board_get_usb_pd_port_count())
+		return;
+
+	/* Disable VBUS source */
+	gpio_set_level(GPIO_EN_USB_C0_VBUS, 0);
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+}
+
+int pd_set_power_supply_ready(int port)
+{
+	/* Disable charging */
+	gpio_set_level(GPIO_EN_PPVAR_USBC_ADP_L, 1);
+
+	/* Enable VBUS source */
+	gpio_set_level(GPIO_EN_USB_C0_VBUS, 1);
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+
+	return EC_SUCCESS;
+}
+
+__override int pd_snk_is_vbus_provided(int port)
+{
+	if (port != CHARGE_PORT_TYPEC0)
+		return 0;
+
+	return gpio_get_level(GPIO_USBC_ADP_PRESENT_L);
+}