1 files changed, 0 insertions, 260 deletions
diff --git a/baseboard/cherry/usb_pd_policy.c b/baseboard/cherry/usb_pd_policy.c
deleted file mode 100644
index 0c7f4dcee5..0000000000
--- a/baseboard/cherry/usb_pd_policy.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/* 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.
- */
-#include "adc.h"
-#include "atomic.h"
-#include "charge_manager.h"
-#include "chipset.h"
-#include "driver/tcpm/rt1718s.h"
-#include "driver/tcpm/tcpci.h"
-#include "timer.h"
-#include "usb_dp_alt_mode.h"
-#include "usb_mux.h"
-#include "usb_pd.h"
-#include "usbc_ppc.h"
-
-#if CONFIG_USB_PD_3A_PORTS != 1
-#error Cherry reference must have at least one 3.0 A port
-#endif
-
-#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
-
-/* The port that the aux channel is on. */
-static enum {
-	AUX_PORT_NONE = -1,
-	AUX_PORT_C0 = 0,
-	AUX_PORT_C1HDMI = 1,
-} aux_port = AUX_PORT_NONE;
-
-int svdm_get_hpd_gpio(int port)
-{
-	/* HPD is low active, inverse the result */
-	return !gpio_get_level(GPIO_EC_AP_DP_HPD_ODL);
-}
-
-void svdm_set_hpd_gpio(int port, int en)
-{
-	/*
-	 * HPD is low active, inverse the en
-	 * TODO: C0&C1 shares the same HPD, implement FCFS policy.
-	 */
-	gpio_set_level(GPIO_EC_AP_DP_HPD_ODL, !en);
-}
-
-static void aux_switch_port(int port)
-{
-	if (port != AUX_PORT_NONE)
-		gpio_set_level_verbose(CC_USBPD, GPIO_DP_PATH_SEL, !port);
-	aux_port = port;
-}
-
-static void aux_display_disconnected(int port)
-{
-	/* Gets the other port. C0 -> C1, C1 -> C0. */
-	int other_port = !port;
-
-	/* If the current port is not the aux port, nothing needs to be done. */
-	if (aux_port != port)
-		return;
-
-	/* If the other port is connected to a external display, switch aux. */
-	if (dp_status[other_port] & DP_FLAGS_DP_ON)
-		aux_switch_port(other_port);
-	else
-		aux_switch_port(AUX_PORT_NONE);
-}
-
-__override int svdm_dp_attention(int port, uint32_t *payload)
-{
-	int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]);
-	int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]);
-#ifdef CONFIG_USB_PD_DP_HPD_GPIO
-	int cur_lvl = svdm_get_hpd_gpio(port);
-#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
-	mux_state_t mux_state;
-
-	dp_status[port] = payload[1];
-
-	if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND) &&
-	    (irq || lvl))
-		/*
-		 * Wake up the AP.  IRQ or level high indicates a DP sink is now
-		 * present.
-		 */
-		if (IS_ENABLED(CONFIG_MKBP_EVENT))
-			pd_notify_dp_alt_mode_entry(port);
-
-	/* Its initial DP status message prior to config */
-	if (!(dp_flags[port] & DP_FLAGS_DP_ON)) {
-		if (lvl)
-			dp_flags[port] |= DP_FLAGS_HPD_HI_PENDING;
-		return 1;
-	}
-
-#ifdef CONFIG_USB_PD_DP_HPD_GPIO
-	if (irq && !lvl) {
-		/*
-		 * IRQ can only be generated when the level is high, because
-		 * the IRQ is signaled by a short low pulse from the high level.
-		 */
-		CPRINTF("ERR:HPD:IRQ&LOW\n");
-		return 0; /* nak */
-	}
-
-	if (irq && cur_lvl) {
-		uint64_t now = get_time().val;
-		/* wait for the minimum spacing between IRQ_HPD if needed */
-		if (now < svdm_hpd_deadline[port])
-			usleep(svdm_hpd_deadline[port] - now);
-
-		/* generate IRQ_HPD pulse */
-		svdm_set_hpd_gpio(port, 0);
-		/*
-		 * b/171172053#comment14: since the HPD_DSTREAM_DEBOUNCE_IRQ is
-		 * very short (500us), we can use udelay instead of usleep for
-		 * more stable pulse period.
-		 */
-		udelay(HPD_DSTREAM_DEBOUNCE_IRQ);
-		svdm_set_hpd_gpio(port, 1);
-	} else {
-		svdm_set_hpd_gpio(port, lvl);
-	}
-
-	/*
-	 * Cherry can only output to 1 display port at a time.
-	 * This implements FCFS policy by changing the aux channel. If a
-	 * display is connected to the either port (says A), and the port A
-	 * will be served until the display is disconnected from port A.
-	 * It won't output to the other display which connects to port B.
-	 */
-	if (lvl && aux_port == AUX_PORT_NONE)
-		/*
-		 * A display is connected, and no display was plugged on either
-		 * port.
-		 */
-		aux_switch_port(port);
-	else if (!lvl)
-		aux_display_disconnected(port);
-
-
-	/* set the minimum time delay (2ms) for the next HPD IRQ */
-	svdm_hpd_deadline[port] = get_time().val + HPD_USTREAM_DEBOUNCE_LVL;
-#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
-
-	mux_state = (lvl ? USB_PD_MUX_HPD_LVL : USB_PD_MUX_HPD_LVL_DEASSERTED) |
-		    (irq ? USB_PD_MUX_HPD_IRQ : USB_PD_MUX_HPD_IRQ_DEASSERTED);
-	usb_mux_hpd_update(port, mux_state);
-
-#ifdef USB_PD_PORT_TCPC_MST
-	if (port == USB_PD_PORT_TCPC_MST)
-		baseboard_mst_enable_control(port, lvl);
-#endif
-
-	/* ack */
-	return 1;
-}
-
-__override void svdm_exit_dp_mode(int port)
-{
-#ifdef CONFIG_USB_PD_DP_HPD_GPIO
-	svdm_set_hpd_gpio(port, 0);
-#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
-	usb_mux_hpd_update(port, USB_PD_MUX_HPD_LVL_DEASSERTED |
-				 USB_PD_MUX_HPD_IRQ_DEASSERTED);
-
-	aux_display_disconnected(port);
-
-#ifdef USB_PD_PORT_TCPC_MST
-	if (port == USB_PD_PORT_TCPC_MST)
-		baseboard_mst_enable_control(port, 0);
-#endif
-}
-
-int pd_snk_is_vbus_provided(int port)
-{
-	static atomic_t vbus_prev[CONFIG_USB_PD_PORT_MAX_COUNT];
-	int vbus;
-
-	/*
-	 * Use ppc_is_vbus_present for all ports on Cherry, and
-	 * port 1 on other devices.
-	 */
-	if (IS_ENABLED(BOARD_CHERRY) || port == 1)
-		return ppc_is_vbus_present(port);
-
-	/* b/181203590: use ADC for port 0 (syv682x) */
-	vbus = (adc_read_channel(ADC_VBUS) >= PD_V_SINK_DISCONNECT_MAX);
-
-#ifdef CONFIG_USB_CHARGER
-	/*
-	 * There's no PPC to inform VBUS change for usb_charger, so inform
-	 * the usb_charger now.
-	 */
-	if (!!(vbus_prev[port] != vbus))
-		usb_charger_vbus_change(port, vbus);
-
-	if (vbus)
-		atomic_or(&vbus_prev[port], 1);
-	else
-		atomic_clear(&vbus_prev[port]);
-#endif
-	return vbus;
-}
-
-void pd_power_supply_reset(int port)
-{
-	int prev_en;
-
-	prev_en = ppc_is_sourcing_vbus(port);
-
-	/* Disable VBUS. */
-	ppc_vbus_source_enable(port, 0);
-
-	/* Enable discharge if we were previously sourcing 5V */
-	if (prev_en)
-		pd_set_vbus_discharge(port, 1);
-
-	if (port == 1)
-		rt1718s_gpio_set_level(port, GPIO_EN_USB_C1_5V_OUT, 0);
-
-	/* Notify host of power info change. */
-	pd_send_host_event(PD_EVENT_POWER_CHANGE);
-}
-
-int pd_check_vconn_swap(int port)
-{
-	/* Allow Vconn swap if AP is on. */
-	return chipset_in_state(CHIPSET_STATE_SUSPEND | CHIPSET_STATE_ON);
-}
-
-int pd_set_power_supply_ready(int port)
-{
-	int rv;
-
-	/* Disable charging. */
-	rv = ppc_vbus_sink_enable(port, 0);
-	if (rv)
-		return rv;
-
-	pd_set_vbus_discharge(port, 0);
-
-	/* Provide Vbus. */
-	rv = ppc_vbus_source_enable(port, 1);
-	if (rv)
-		return rv;
-
-	if (port == 1)
-		rt1718s_gpio_set_level(port, GPIO_EN_USB_C1_5V_OUT, 1);
-
-	/* Notify host of power info change. */
-	pd_send_host_event(PD_EVENT_POWER_CHANGE);
-
-	return EC_SUCCESS;
-}
-
-int board_vbus_source_enabled(int port)
-{
-	return ppc_is_sourcing_vbus(port);
-}