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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /baseboard/trogdor/usb_pd_policy.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-firmware-brya-14505.71.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'baseboard/trogdor/usb_pd_policy.c')
-rw-r--r--baseboard/trogdor/usb_pd_policy.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/baseboard/trogdor/usb_pd_policy.c b/baseboard/trogdor/usb_pd_policy.c
deleted file mode 100644
index d7ed03e941..0000000000
--- a/baseboard/trogdor/usb_pd_policy.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/* 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.
- */
-
-#include "charge_manager.h"
-#include "chipset.h"
-#include "console.h"
-#include "gpio.h"
-#include "system.h"
-#include "usb_mux.h"
-#include "usbc_ppc.h"
-#include "util.h"
-
-#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
-
-int pd_check_vconn_swap(int port)
-{
- /* In G3, do not allow vconn swap since PP5000 rail is off */
- return gpio_get_level(GPIO_EN_PP5000);
-}
-
-static uint8_t vbus_en[CONFIG_USB_PD_PORT_MAX_COUNT];
-#if CONFIG_USB_PD_PORT_MAX_COUNT == 1
-static uint8_t vbus_rp[CONFIG_USB_PD_PORT_MAX_COUNT] = {TYPEC_RP_1A5};
-#else
-static uint8_t vbus_rp[CONFIG_USB_PD_PORT_MAX_COUNT] = {TYPEC_RP_1A5,
- TYPEC_RP_1A5};
-#endif
-
-static void board_vbus_update_source_current(int port)
-{
- /* Both port are controlled by PPC SN5S330. */
- ppc_set_vbus_source_current_limit(port, vbus_rp[port]);
- ppc_vbus_source_enable(port, vbus_en[port]);
-}
-
-void pd_power_supply_reset(int port)
-{
- int prev_en;
-
- prev_en = vbus_en[port];
-
- /* Disable VBUS */
- vbus_en[port] = 0;
- board_vbus_update_source_current(port);
-
- /* Enable discharge if we were previously sourcing 5V */
- if (prev_en)
- pd_set_vbus_discharge(port, 1);
-
- /* notify host of power info change */
- pd_send_host_event(PD_EVENT_POWER_CHANGE);
-}
-
-int pd_set_power_supply_ready(int port)
-{
- /* Disable charging */
- board_vbus_sink_enable(port, 0);
-
- pd_set_vbus_discharge(port, 0);
-
- /* Provide VBUS */
- vbus_en[port] = 1;
- board_vbus_update_source_current(port);
-
- /* notify host of power info change */
- pd_send_host_event(PD_EVENT_POWER_CHANGE);
-
- return EC_SUCCESS; /* we are ready */
-}
-
-int board_vbus_source_enabled(int port)
-{
- return vbus_en[port];
-}
-
-__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp)
-{
- vbus_rp[port] = rp;
- board_vbus_update_source_current(port);
-}
-
-int pd_snk_is_vbus_provided(int port)
-{
- return tcpm_check_vbus_level(port, VBUS_PRESENT);
-}
-
-/* ----------------- Vendor Defined Messages ------------------ */
-#ifdef CONFIG_USB_PD_ALT_MODE_DFP
-__override int svdm_dp_config(int port, uint32_t *payload)
-{
- int opos = pd_alt_mode(port, TCPCI_MSG_SOP, USB_SID_DISPLAYPORT);
- uint8_t pin_mode = get_dp_pin_mode(port);
-
- if (!pin_mode)
- return 0;
-
- /*
- * Defer setting the usb_mux until HPD goes high, svdm_dp_attention().
- * The AP only supports one DP phy. An external DP mux switches between
- * the two ports. Should switch those muxes when it is really used,
- * i.e. HPD high; otherwise, the real use case is preempted, like:
- * (1) plug a dongle without monitor connected to port-0,
- * (2) plug a dongle without monitor connected to port-1,
- * (3) plug a monitor to the port-1 dongle.
- */
-
- payload[0] = VDO(USB_SID_DISPLAYPORT, 1,
- CMD_DP_CONFIG | VDO_OPOS(opos));
- payload[1] = VDO_DP_CFG(pin_mode, /* pin mode */
- 1, /* DPv1.3 signaling */
- 2); /* UFP connected */
- return 2;
-};
-
-__override void svdm_dp_post_config(int port)
-{
- dp_flags[port] |= DP_FLAGS_DP_ON;
-}
-
-/**
- * Is the port fine to be muxed its DisplayPort lines?
- *
- * Only one port can be muxed to DisplayPort at a time.
- *
- * @param port Port number of TCPC.
- * @return 1 is fine; 0 is bad as other port is already muxed;
- */
-static int is_dp_muxable(int port)
-{
- int i;
-
- for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++)
- if (i != port) {
- if (usb_mux_get(i) & USB_PD_MUX_DP_ENABLED)
- return 0;
- }
-
- return 1;
-}
-
-__override int svdm_dp_attention(int port, uint32_t *payload)
-{
- enum gpio_signal hpd = GPIO_DP_HOT_PLUG_DET;
- int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]);
- int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]);
- int cur_lvl = gpio_get_level(hpd);
- mux_state_t mux_state;
-
- dp_status[port] = payload[1];
-
- if (!is_dp_muxable(port)) {
- /* TODO(waihong): Info user? */
- CPRINTS("p%d: The other port is already muxed.", port);
- return 0;
- }
-
- /*
- * Initial implementation to handle HPD. Only the first-plugged port
- * works, i.e. sending HPD signal to AP. The second-plugged port
- * will be ignored.
- *
- * TODO(waihong): Continue the above case, if the first-plugged port
- * is then unplugged, switch to the second-plugged port and signal AP?
- */
- if (lvl) {
- /*
- * Enable and switch the DP port selection mux to the
- * correct port.
- *
- * TODO(waihong): Better to move switching DP mux to
- * the usb_mux abstraction.
- */
- gpio_set_level(GPIO_DP_MUX_SEL, port == 1);
- gpio_set_level(GPIO_DP_MUX_OE_L, 0);
-
- /* Connect the SBU lines in PPC chip. */
- if (IS_ENABLED(CONFIG_USBC_PPC_SBU))
- ppc_set_sbu(port, 1);
-
- /*
- * Connect the USB SS/DP lines in TCPC chip.
- *
- * When mf_pref not true, still use the dock muxing
- * because of the board USB-C topology (limited to 2
- * lanes DP).
- */
- usb_mux_set(port, USB_PD_MUX_DOCK,
- USB_SWITCH_CONNECT,
- polarity_rm_dts(pd_get_polarity(port)));
- } else {
- /* Disconnect the DP port selection mux. */
- gpio_set_level(GPIO_DP_MUX_OE_L, 1);
- gpio_set_level(GPIO_DP_MUX_SEL, 0);
-
- /* Disconnect the SBU lines in PPC chip. */
- if (IS_ENABLED(CONFIG_USBC_PPC_SBU))
- ppc_set_sbu(port, 0);
-
- /* Disconnect the DP but keep the USB SS lines in TCPC chip. */
- usb_mux_set(port, USB_PD_MUX_USB_ENABLED,
- USB_SWITCH_CONNECT,
- polarity_rm_dts(pd_get_polarity(port)));
- }
-
- 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.
- */
- pd_notify_dp_alt_mode_entry(port);
-
- /* Configure TCPC for the HPD event, for proper muxing */
- 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);
-
- /* Signal AP for the HPD event, through GPIO to AP */
- 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 */
- gpio_set_level(hpd, 0);
- usleep(HPD_DSTREAM_DEBOUNCE_IRQ);
- gpio_set_level(hpd, 1);
-
- /* Set the minimum time delay (2ms) for the next HPD IRQ */
- svdm_hpd_deadline[port] = get_time().val +
- HPD_USTREAM_DEBOUNCE_LVL;
- } else if (irq & !lvl) {
- CPRINTF("ERR:HPD:IRQ&LOW\n");
- return 0;
- } else {
- gpio_set_level(hpd, lvl);
- /* Set the minimum time delay (2ms) for the next HPD IRQ */
- svdm_hpd_deadline[port] = get_time().val +
- HPD_USTREAM_DEBOUNCE_LVL;
- }
-
- return 1;
-}
-
-__override void svdm_exit_dp_mode(int port)
-{
- if (is_dp_muxable(port)) {
- /* Disconnect the DP port selection mux. */
- gpio_set_level(GPIO_DP_MUX_OE_L, 1);
- gpio_set_level(GPIO_DP_MUX_SEL, 0);
-
- /* Signal AP for the HPD low event */
- usb_mux_hpd_update(port, USB_PD_MUX_HPD_LVL_DEASSERTED |
- USB_PD_MUX_HPD_IRQ_DEASSERTED);
- gpio_set_level(GPIO_DP_HOT_PLUG_DET, 0);
- }
-}
-#endif /* CONFIG_USB_PD_ALT_MODE_DFP */