forge/glider
1
0
Fork 0
mirror of https://gitlab.com/zephray/glider.git synced 2024-11-14 04:57:54 +00:00
Code Issues 1 Projects Releases Packages Wiki Activity Actions
glider/fw/usb_pd_protocol.c
Wenting Zhang 6af6ed6ebf fw: initial controller fw
2022-09-04 15:16:18 -04:00

4278 lines
114 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Copyright (c) 2014 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 <stdio.h>
#include <stddef.h>
#include <string.h>
#include "pico/stdlib.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "tcpm.h"
#include "usb_pd_driver.h"
#ifdef CONFIG_COMMON_RUNTIME
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
BUILD_ASSERT(CONFIG_USB_PD_PORT_COUNT <= EC_USB_PD_MAX_PORTS);
/*
* Debug log level - higher number == more log
* Level 0: Log state transitions
* Level 1: Level 0, plus state name
* Level 2: Level 1, plus packet info
* Level 3: Level 2, plus ping packet and packet dump on error
*
* Note that higher log level causes timing changes and thus may affect
* performance.
*
* Can be limited to constant debug_level by CONFIG_USB_PD_DEBUG_LEVEL
*/
#ifdef CONFIG_USB_PD_DEBUG_LEVEL
static const int debug_level = CONFIG_USB_PD_DEBUG_LEVEL;
#else
static int debug_level;
#endif
/*
* PD communication enabled flag. When false, PD state machine still
* detects source/sink connection and disconnection, and will still
* provide VBUS, but never sends any PD communication.
*/
static uint8_t pd_comm_enabled[CONFIG_USB_PD_PORT_COUNT];
#else /* CONFIG_COMMON_RUNTIME */
#define CPRINTF(format, args...) printf(format, ## args)
#define CPRINTS(format, args...) printf(format, ## args)
static const int debug_level = 1;
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE
#define DUAL_ROLE_IF_ELSE(port, sink_clause, src_clause) \
(pd[port].power_role == PD_ROLE_SINK ? (sink_clause) : (src_clause))
#else
#define DUAL_ROLE_IF_ELSE(port, sink_clause, src_clause) (src_clause)
#endif
#define READY_RETURN_STATE(port) DUAL_ROLE_IF_ELSE(port, PD_STATE_SNK_READY, \
PD_STATE_SRC_READY)
/* Type C supply voltage (mV) */
#define TYPE_C_VOLTAGE 5000 /* mV */
/* PD counter definitions */
#define PD_MESSAGE_ID_COUNT 7
#define PD_HARD_RESET_COUNT 2
#define PD_CAPS_COUNT 50
#define PD_SNK_CAP_RETRIES 3
#ifdef CONFIG_USB_PD_DUAL_ROLE
/* Port dual-role state */
enum pd_dual_role_states drp_state = CONFIG_USB_PD_INITIAL_DRP_STATE;
/* Enable variable for Try.SRC states */
static uint8_t pd_try_src_enable;
#endif
#ifdef CONFIG_USB_PD_REV30
/*
* The spec. revision is used to index into this array.
* Rev 0 (PD 1.0) - return PD_CTRL_REJECT
* Rev 1 (PD 2.0) - return PD_CTRL_REJECT
* Rev 2 (PD 3.0) - return PD_CTRL_NOT_SUPPORTED
*/
static const uint8_t refuse[] = {
PD_CTRL_REJECT, PD_CTRL_REJECT, PD_CTRL_NOT_SUPPORTED};
#define REFUSE(r) refuse[r]
#else
#define REFUSE(r) PD_CTRL_REJECT
#endif
#ifdef CONFIG_USB_PD_REV30
/*
* The spec. revision is used to index into this array.
* Rev 0 (VDO 1.0) - return VDM_VER10
* Rev 1 (VDO 1.0) - return VDM_VER10
* Rev 2 (VDO 2.0) - return VDM_VER20
*/
static const uint8_t vdo_ver[] = {
VDM_VER10, VDM_VER10, VDM_VER20};
#define VDO_VER(v) vdo_ver[v]
#else
#define VDO_VER(v) VDM_VER10
#endif
// variables that used to be pd_task, but had to be promoted
// so both pd_init and pd_run_state_machine can see them
static int head;
static int port = TASK_ID_TO_PD_PORT(task_get_current());
static uint32_t payload[7];
static int timeout = 10*MSEC_US;
static int cc1, cc2;
static int res, incoming_packet = 0;
static int hard_reset_count = 0;
#ifdef CONFIG_USB_PD_DUAL_ROLE
static uint64_t next_role_swap = PD_T_DRP_SNK;
#ifndef CONFIG_USB_PD_VBUS_DETECT_NONE
static int snk_hard_reset_vbus_off = 0;
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
static const int auto_toggle_supported = tcpm_auto_toggle_supported(port);
#endif
#if defined(CONFIG_CHARGE_MANAGER)
static typec_current_t typec_curr = 0, typec_curr_change = 0;
#endif /* CONFIG_CHARGE_MANAGER */
#endif /* CONFIG_USB_PD_DUAL_ROLE */
static enum pd_states this_state;
static enum pd_cc_states new_cc_state;
static timestamp_t now;
static int caps_count = 0, hard_reset_sent = 0;
static int snk_cap_count = 0;
static int evt;
enum vdm_states {
VDM_STATE_ERR_BUSY = -3,
VDM_STATE_ERR_SEND = -2,
VDM_STATE_ERR_TMOUT = -1,
VDM_STATE_DONE = 0,
/* Anything >0 represents an active state */
VDM_STATE_READY = 1,
VDM_STATE_BUSY = 2,
VDM_STATE_WAIT_RSP_BUSY = 3,
};
struct pd_protocol {
/* current port power role (SOURCE or SINK) */
uint8_t power_role;
/* current port data role (DFP or UFP) */
uint8_t data_role;
/* 3-bit rolling message ID counter */
uint8_t msg_id;
/* Port polarity : 0 => CC1 is CC line, 1 => CC2 is CC line */
uint8_t polarity;
/* PD state for port */
enum pd_states task_state;
/* PD state when we run state handler the last time */
enum pd_states last_state;
/* bool: request state change to SUSPENDED */
uint8_t req_suspend_state;
/* The state to go to after timeout */
enum pd_states timeout_state;
/* port flags, see PD_FLAGS_* */
uint32_t flags;
/* Timeout for the current state. Set to 0 for no timeout. */
uint64_t timeout;
/* Time for source recovery after hard reset */
uint64_t src_recover;
/* Time for CC debounce end */
uint64_t cc_debounce;
/* The cc state */
enum pd_cc_states cc_state;
/* status of last transmit */
uint8_t tx_status;
/* last requested voltage PDO index */
int requested_idx;
#ifdef CONFIG_USB_PD_DUAL_ROLE
/* Current limit / voltage based on the last request message */
uint32_t curr_limit;
uint32_t supply_voltage;
/* Signal charging update that affects the port */
int new_power_request;
/* Store previously requested voltage request */
int prev_request_mv;
/* Time for Try.SRC states */
uint64_t try_src_marker;
#endif
/* PD state for Vendor Defined Messages */
enum vdm_states vdm_state;
/* Timeout for the current vdm state. Set to 0 for no timeout. */
timestamp_t vdm_timeout;
/* next Vendor Defined Message to send */
uint32_t vdo_data[VDO_MAX_SIZE];
uint8_t vdo_count;
/* VDO to retry if UFP responder replied busy. */
uint32_t vdo_retry;
#ifdef CONFIG_USB_PD_CHROMEOS
/* Attached ChromeOS device id, RW hash, and current RO / RW image */
uint16_t dev_id;
uint32_t dev_rw_hash[PD_RW_HASH_SIZE/4];
enum ec_current_image current_image;
#endif
#ifdef CONFIG_USB_PD_REV30
/* PD Collision avoidance buffer */
uint16_t ca_buffered;
uint16_t ca_header;
uint32_t ca_buffer[PDO_MAX_OBJECTS];
enum tcpm_transmit_type ca_type;
/* protocol revision */
uint8_t rev;
#endif
} pd[CONFIG_USB_PD_PORT_COUNT];
#ifdef CONFIG_COMMON_RUNTIME
static const char * const pd_state_names[] = {
"DISABLED", "SUSPENDED",
#ifdef CONFIG_USB_PD_DUAL_ROLE
"SNK_DISCONNECTED", "SNK_DISCONNECTED_DEBOUNCE",
"SNK_HARD_RESET_RECOVER",
"SNK_DISCOVERY", "SNK_REQUESTED", "SNK_TRANSITION", "SNK_READY",
"SNK_SWAP_INIT", "SNK_SWAP_SNK_DISABLE",
"SNK_SWAP_SRC_DISABLE", "SNK_SWAP_STANDBY", "SNK_SWAP_COMPLETE",
#endif /* CONFIG_USB_PD_DUAL_ROLE */
"SRC_DISCONNECTED", "SRC_DISCONNECTED_DEBOUNCE",
"SRC_HARD_RESET_RECOVER", "SRC_STARTUP",
"SRC_DISCOVERY", "SRC_NEGOCIATE", "SRC_ACCEPTED", "SRC_POWERED",
"SRC_TRANSITION", "SRC_READY", "SRC_GET_SNK_CAP", "DR_SWAP",
#ifdef CONFIG_USB_PD_DUAL_ROLE
"SRC_SWAP_INIT", "SRC_SWAP_SNK_DISABLE", "SRC_SWAP_SRC_DISABLE",
"SRC_SWAP_STANDBY",
#ifdef CONFIG_USBC_VCONN_SWAP
"VCONN_SWAP_SEND", "VCONN_SWAP_INIT", "VCONN_SWAP_READY",
#endif /* CONFIG_USBC_VCONN_SWAP */
#endif /* CONFIG_USB_PD_DUAL_ROLE */
"SOFT_RESET", "HARD_RESET_SEND", "HARD_RESET_EXECUTE", "BIST_RX",
"BIST_TX",
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
"DRP_AUTO_TOGGLE",
#endif
};
BUILD_ASSERT(ARRAY_SIZE(pd_state_names) == PD_STATE_COUNT);
#endif
/*
* 4 entry rw_hash table of type-C devices that AP has firmware updates for.
*/
#ifdef CONFIG_COMMON_RUNTIME
#define RW_HASH_ENTRIES 4
static struct ec_params_usb_pd_rw_hash_entry rw_hash_table[RW_HASH_ENTRIES];
#endif
int pd_comm_is_enabled(int port)
{
#ifdef CONFIG_COMMON_RUNTIME
return pd_comm_enabled[port];
#else
return 1;
#endif
}
static inline void set_state_timeout(int port,
uint64_t timeout,
enum pd_states timeout_state)
{
pd[port].timeout = timeout;
pd[port].timeout_state = timeout_state;
}
#ifdef CONFIG_USB_PD_REV30
int pd_get_rev(int port)
{
return pd[port].rev;
}
int pd_get_vdo_ver(int port)
{
return vdo_ver[pd[port].rev];
}
#endif
/* Return flag for pd state is connected */
int pd_is_connected(int port)
{
if (pd[port].task_state == PD_STATE_DISABLED)
return 0;
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
if (pd[port].task_state == PD_STATE_DRP_AUTO_TOGGLE)
return 0;
#endif
return DUAL_ROLE_IF_ELSE(port,
/* sink */
pd[port].task_state != PD_STATE_SNK_DISCONNECTED &&
pd[port].task_state != PD_STATE_SNK_DISCONNECTED_DEBOUNCE,
/* source */
pd[port].task_state != PD_STATE_SRC_DISCONNECTED &&
pd[port].task_state != PD_STATE_SRC_DISCONNECTED_DEBOUNCE);
}
/*
* Return true if partner port is a DTS or TS capable of entering debug
* mode (eg. is presenting Rp/Rp or Rd/Rd).
*/
int pd_ts_dts_plugged(int port)
{
return pd[port].flags & PD_FLAGS_TS_DTS_PARTNER;
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
void pd_vbus_low(int port)
{
pd[port].flags &= ~PD_FLAGS_VBUS_NEVER_LOW;
}
static inline int pd_is_vbus_present(int port)
{
#ifdef CONFIG_USB_PD_VBUS_DETECT_TCPC
return tcpm_get_vbus_level(port);
#else
return pd_snk_is_vbus_provided(port);
#endif
}
#endif
static inline void set_state(int port, enum pd_states next_state)
{
enum pd_states last_state = pd[port].task_state;
#ifdef CONFIG_LOW_POWER_IDLE
int i;
#endif
set_state_timeout(port, 0, 0);
pd[port].task_state = next_state;
if (last_state == next_state)
return;
#ifdef CONFIG_USB_PD_DUAL_ROLE
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
/* Clear flag to allow DRP auto toggle when possible */
if (last_state != PD_STATE_DRP_AUTO_TOGGLE)
pd[port].flags &= ~PD_FLAGS_TCPC_DRP_TOGGLE;
#endif
/* Ignore dual-role toggling between sink and source */
if ((last_state == PD_STATE_SNK_DISCONNECTED &&
next_state == PD_STATE_SRC_DISCONNECTED) ||
(last_state == PD_STATE_SRC_DISCONNECTED &&
next_state == PD_STATE_SNK_DISCONNECTED))
return;
if (next_state == PD_STATE_SRC_DISCONNECTED ||
next_state == PD_STATE_SNK_DISCONNECTED) {
/* Clear the input current limit */
pd_set_input_current_limit(port, 0, 0);
#ifdef CONFIG_CHARGE_MANAGER
//typec_set_input_current_limit(port, 0, 0);
//charge_manager_set_ceil(port,
// CEIL_REQUESTOR_PD,
// CHARGE_CEIL_NONE);
#endif
#ifdef CONFIG_USBC_VCONN
tcpm_set_vconn(port, 0);
#endif
#else /* CONFIG_USB_PD_DUAL_ROLE */
if (next_state == PD_STATE_SRC_DISCONNECTED) {
#endif
/*
* If we are source, make sure VBUS is off and
* if PD REV3.0, restore RP.
*/
if (pd[port].power_role == PD_ROLE_SOURCE) {
/*
* Rp is restored by pd_power_supply_reset if
* CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT is defined.
*/
pd_power_supply_reset(port);
#if !defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) && \
defined(CONFIG_USB_PD_REV30)
/* Restore Rp */
tcpm_select_rp_value(port, CONFIG_USB_PD_PULLUP);
tcpm_set_cc(port, TYPEC_CC_RP);
#endif
}
#ifdef CONFIG_USB_PD_REV30
/* Adjust rev to highest level*/
pd[port].rev = PD_REV30;
#endif
#ifdef CONFIG_USB_PD_CHROMEOS
pd[port].dev_id = 0;
pd[port].flags &= ~PD_FLAGS_RESET_ON_DISCONNECT_MASK;
#endif
#ifdef CONFIG_CHARGE_MANAGER
//charge_manager_update_dualrole(port, CAP_UNKNOWN);
#endif
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
pd_dfp_exit_mode(port, 0, 0);
#endif
#ifdef CONFIG_USBC_SS_MUX
usb_mux_set(port, TYPEC_MUX_NONE, USB_SWITCH_DISCONNECT,
pd[port].polarity);
#endif
/* Disable TCPC RX */
tcpm_set_rx_enable(port, 0);
}
#ifdef CONFIG_LOW_POWER_IDLE
/* If a PD device is attached then disable deep sleep */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
if (pd[i].flags & PD_FLAGS_PREVIOUS_PD_CONN)
break;
}
if (i == CONFIG_USB_PD_PORT_COUNT)
enable_sleep(SLEEP_MASK_USB_PD);
else
disable_sleep(SLEEP_MASK_USB_PD);
#endif
CPRINTF("C%d st%d\n", port, next_state);
}
/* increment message ID counter */
static void inc_id(int port)
{
pd[port].msg_id = (pd[port].msg_id + 1) & PD_MESSAGE_ID_COUNT;
}
#ifdef CONFIG_USB_PD_REV30
static void sink_can_xmit(int port, int rp)
{
tcpm_select_rp_value(port, rp);
tcpm_set_cc(port, TYPEC_CC_RP);
}
static inline void pd_ca_reset(int port)
{
pd[port].ca_buffered = 0;
}
#endif
void pd_transmit_complete(int port, int status)
{
if (status == TCPC_TX_COMPLETE_SUCCESS)
inc_id(port);
pd[port].tx_status = status;
//task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_TX, 0);
pd_task_set_event(PD_EVENT_TX, 0);
}
static int pd_transmit(int port, enum tcpm_transmit_type type,
uint16_t header, const uint32_t *data)
{
int evt;
/* If comms are disabled, do not transmit, return error */
if (!pd_comm_is_enabled(port))
return -1;
#ifdef CONFIG_USB_PD_REV30
/* Source-coordinated collision avoidance */
/*
* In order to avoid message collisions due to asynchronous Messaging
* sent from the Sink, the Source sets Rp to SinkTxOk to indicate to
* the Sink that it is ok to initiate an AMS. When the Source wishes
* to initiate an AMS it sets Rp to SinkTxNG. When the Sink detects
* that Rp is set to SinkTxOk it May initiate an AMS. When the Sink
* detects that Rp is set to SinkTxNG it Shall Not initiate an AMS
* and Shall only send Messages that are part of an AMS the Source has
* initiated. Note that this restriction applies to SOP* AMS’s i.e.
* for both Port to Port and Port to Cable Plug communications.
*
* This starts after an Explicit Contract is in place
* PD R3 V1.1 Section 2.5.2.
*
* Note: a Sink can still send Hard Reset signaling at any time.
*/
if ((pd[port].rev == PD_REV30) &&
(pd[port].flags & PD_FLAGS_EXPLICIT_CONTRACT)) {
if (pd[port].power_role == PD_ROLE_SOURCE) {
/*
* Inform Sink that it can't transmit. If a sink
* transmition is in progress and a collsion occurs,
* a reset is generated. This should be rare because
* all extended messages are chunked. This effectively
* defaults to PD REV 2.0 collision avoidance.
*/
sink_can_xmit(port, SINK_TX_NG);
} else if (type != TCPC_TX_HARD_RESET) {
int cc1;
int cc2;
tcpm_get_cc(port, &cc1, &cc2);
if (cc1 == TYPEC_CC_VOLT_SNK_1_5 ||
cc2 == TYPEC_CC_VOLT_SNK_1_5) {
/* Sink can't transmit now. */
/* Check if message is already buffered. */
if (pd[port].ca_buffered)
return -1;
/* Buffer message and send later. */
pd[port].ca_type = type;
pd[port].ca_header = header;
memcpy(pd[port].ca_buffer,
data, sizeof(uint32_t) *
PD_HEADER_CNT(header));
pd[port].ca_buffered = 1;
return 1;
}
}
}
#endif
tcpm_transmit(port, type, header, data);
/* Wait until TX is complete */
// Would wait, except that we're making tcpm_transmit blocking
//evt = task_wait_event_mask(PD_EVENT_TX, PD_T_TCPC_TX_TIMEOUT);
#ifdef CONFIG_USB_PD_REV30
/*
* If the source just completed a transmit, tell
* the sink it can transmit if it wants to.
*/
if ((pd[port].rev == PD_REV30) &&
(pd[port].power_role == PD_ROLE_SOURCE) &&
(pd[port].flags & PD_FLAGS_EXPLICIT_CONTRACT)) {
sink_can_xmit(port, SINK_TX_OK);
}
#endif
// removing task-based stuff from the library
//if (evt & TASK_EVENT_TIMER)
// return -1;
/* TODO: give different error condition for failed vs discarded */
return pd[port].tx_status == TCPC_TX_COMPLETE_SUCCESS ? 1 : -1;
}
#ifdef CONFIG_USB_PD_REV30
static void pd_ca_send_pending(int port)
{
int cc1;
int cc2;
/* Check if a message has been buffered. */
if (!pd[port].ca_buffered)
return;
tcpm_get_cc(port, &cc1, &cc2);
if ((cc1 != TYPEC_CC_VOLT_SNK_1_5) &&
(cc2 != TYPEC_CC_VOLT_SNK_1_5))
if (pd_transmit(port, pd[port].ca_type,
pd[port].ca_header,
pd[port].ca_buffer) < 0)
return;
/* Message was sent, so free up the buffer. */
pd[port].ca_buffered = 0;
}
#endif
static void pd_update_roles(int port)
{
/* Notify TCPC of role update */
tcpm_set_msg_header(port, pd[port].power_role, pd[port].data_role);
}
static int send_control(int port, int type)
{
int bit_len;
uint16_t header = PD_HEADER(type, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, 0,
pd_get_rev(port), 0);
bit_len = pd_transmit(port, TCPC_TX_SOP, header, NULL);
if (debug_level >= 2)
CPRINTF("CTRL[%d]>%d\n", type, bit_len);
return bit_len;
}
static int send_source_cap(int port)
{
int bit_len;
#if defined(CONFIG_USB_PD_DYNAMIC_SRC_CAP) || \
defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT)
const uint32_t *src_pdo;
const int src_pdo_cnt = charge_manager_get_source_pdo(&src_pdo, port);
#else
const uint32_t *src_pdo = pd_src_pdo;
const int src_pdo_cnt = pd_src_pdo_cnt;
#endif
uint16_t header;
if (src_pdo_cnt == 0)
/* No source capabilities defined, sink only */
header = PD_HEADER(PD_CTRL_REJECT, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, 0,
pd_get_rev(port), 0);
else
header = PD_HEADER(PD_DATA_SOURCE_CAP, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, src_pdo_cnt,
pd_get_rev(port), 0);
bit_len = pd_transmit(port, TCPC_TX_SOP, header, src_pdo);
if (debug_level >= 2)
CPRINTF("srcCAP>%d\n", bit_len);
return bit_len;
}
#ifdef CONFIG_USB_PD_REV30
static int send_battery_cap(int port, uint32_t *payload)
{
int bit_len;
uint16_t msg[6] = {0, 0, 0, 0, 0, 0};
uint16_t header = PD_HEADER(PD_EXT_BATTERY_CAP,
pd[port].power_role,
pd[port].data_role,
pd[port].msg_id,
3, /* Number of Data Objects */
pd[port].rev,
1 /* This is an exteded message */
);
/* Set extended header */
msg[0] = PD_EXT_HEADER(0, /* Chunk Number */
0, /* Request Chunk */
9 /* Data Size in bytes */
);
/* Set VID */
msg[1] = USB_VID_GOOGLE;
/* Set PID */
msg[2] = CONFIG_USB_PID;
if (battery_is_present()) {
/*
* We only have one fixed battery,
* so make sure batt cap ref is 0.
*/
if (BATT_CAP_REF(payload[0]) != 0) {
/* Invalid battery reference */
msg[5] = 1;
} else {
uint32_t v;
uint32_t c;
/*
* The Battery Design Capacity field shall return the
* Battery’s design capacity in tenths of Wh. If the
* Battery is Hot Swappable and is not present, the
* Battery Design Capacity field shall be set to 0. If
* the Battery is unable to report its Design Capacity,
* it shall return 0xFFFF
*/
msg[3] = 0xffff;
/*
* The Battery Last Full Charge Capacity field shall
* return the Battery’s last full charge capacity in
* tenths of Wh. If the Battery is Hot Swappable and
* is not present, the Battery Last Full Charge Capacity
* field shall be set to 0. If the Battery is unable to
* report its Design Capacity, the Battery Last Full
* Charge Capacity field shall be set to 0xFFFF.
*/
msg[4] = 0xffff;
if (battery_design_voltage(&v) == 0) {
if (battery_design_capacity(&c) == 0) {
/*
* Wh = (c * v) / 1000000
* 10th of a Wh = Wh * 10
*/
msg[3] = DIV_ROUND_NEAREST((c * v),
100000);
}
if (battery_full_charge_capacity(&c) == 0) {
/*
* Wh = (c * v) / 1000000
* 10th of a Wh = Wh * 10
*/
msg[4] = DIV_ROUND_NEAREST((c * v),
100000);
}
}
}
}
bit_len = pd_transmit(port, TCPC_TX_SOP, header, (uint32_t *)msg);
if (debug_level >= 2)
CPRINTF("batCap>%d\n", bit_len);
return bit_len;
}
static int send_battery_status(int port, uint32_t *payload)
{
int bit_len;
uint32_t msg = 0;
uint16_t header = PD_HEADER(PD_DATA_BATTERY_STATUS,
pd[port].power_role,
pd[port].data_role,
pd[port].msg_id,
1, /* Number of Data Objects */
pd[port].rev,
0 /* This is NOT an extended message */
);
if (battery_is_present()) {
/*
* We only have one fixed battery,
* so make sure batt cap ref is 0.
*/
if (BATT_CAP_REF(payload[0]) != 0) {
/* Invalid battery reference */
msg |= BSDO_INVALID;
} else {
uint32_t v;
uint32_t c;
if (battery_design_voltage(&v) != 0 ||
battery_remaining_capacity(&c) != 0) {
msg |= BSDO_CAP(BSDO_CAP_UNKNOWN);
} else {
/*
* Wh = (c * v) / 1000000
* 10th of a Wh = Wh * 10
*/
msg |= BSDO_CAP(DIV_ROUND_NEAREST((c * v),
100000));
}
/* Battery is present */
msg |= BSDO_PRESENT;
/*
* For drivers that are not smart battery compliant,
* battery_status() returns EC_ERROR_UNIMPLEMENTED and
* the battery is assumed to be idle.
*/
if (battery_status(&c) != 0) {
msg |= BSDO_IDLE; /* assume idle */
} else {
if (c & STATUS_FULLY_CHARGED)
/* Fully charged */
msg |= BSDO_IDLE;
else if (c & STATUS_DISCHARGING)
/* Discharging */
msg |= BSDO_DISCHARGING;
/* else battery is charging.*/
}
}
} else {
msg = BSDO_CAP(BSDO_CAP_UNKNOWN);
}
bit_len = pd_transmit(port, TCPC_TX_SOP, header, &msg);
if (debug_level >= 2)
CPRINTF("batStat>%d\n", bit_len);
return bit_len;
}
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE
static void send_sink_cap(int port)
{
int bit_len;
uint16_t header = PD_HEADER(PD_DATA_SINK_CAP, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, pd_snk_pdo_cnt,
pd_get_rev(port), 0);
bit_len = pd_transmit(port, TCPC_TX_SOP, header, pd_snk_pdo);
if (debug_level >= 2)
CPRINTF("snkCAP>%d\n", bit_len);
}
static int send_request(int port, uint32_t rdo)
{
int bit_len;
uint16_t header = PD_HEADER(PD_DATA_REQUEST, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, 1,
pd_get_rev(port), 0);
bit_len = pd_transmit(port, TCPC_TX_SOP, header, &rdo);
if (debug_level >= 2)
CPRINTF("REQ%d>\n", bit_len);
return bit_len;
}
#ifdef CONFIG_BBRAM
static int pd_get_saved_active(int port)
{
uint8_t val;
if (system_get_bbram(port ? SYSTEM_BBRAM_IDX_PD1 :
SYSTEM_BBRAM_IDX_PD0, &val)) {
CPRINTS("PD NVRAM FAIL");
return 0;
}
return !!val;
}
static void pd_set_saved_active(int port, int val)
{
if (system_set_bbram(port ? SYSTEM_BBRAM_IDX_PD1 :
SYSTEM_BBRAM_IDX_PD0, val))
CPRINTS("PD NVRAM FAIL");
}
#endif // CONFIG_BBRAM
#endif /* CONFIG_USB_PD_DUAL_ROLE */
#ifdef CONFIG_COMMON_RUNTIME
static int send_bist_cmd(int port)
{
/* currently only support sending bist carrier 2 */
uint32_t bdo = BDO(BDO_MODE_CARRIER2, 0);
int bit_len;
uint16_t header = PD_HEADER(PD_DATA_BIST, pd[port].power_role,
pd[port].data_role, pd[port].msg_id, 1,
pd_get_rev(port), 0);
bit_len = pd_transmit(port, TCPC_TX_SOP, header, &bdo);
CPRINTF("BIST>%d\n", bit_len);
return bit_len;
}
#endif
static void queue_vdm(int port, uint32_t *header, const uint32_t *data,
int data_cnt)
{
pd[port].vdo_count = data_cnt + 1;
pd[port].vdo_data[0] = header[0];
memcpy(&pd[port].vdo_data[1], data, sizeof(uint32_t) * data_cnt);
/* Set ready, pd task will actually send */
pd[port].vdm_state = VDM_STATE_READY;
}
static void handle_vdm_request(int port, int cnt, uint32_t *payload)
{
int rlen = 0;
uint32_t *rdata;
CPRINTF("VDM request");
if (pd[port].vdm_state == VDM_STATE_BUSY) {
/* If UFP responded busy retry after timeout */
if (PD_VDO_CMDT(payload[0]) == CMDT_RSP_BUSY) {
pd[port].vdm_timeout.val = get_time().val +
PD_T_VDM_BUSY;
pd[port].vdm_state = VDM_STATE_WAIT_RSP_BUSY;
pd[port].vdo_retry = (payload[0] & ~VDO_CMDT_MASK) |
CMDT_INIT;
return;
} else {
pd[port].vdm_state = VDM_STATE_DONE;
}
}
if (PD_VDO_SVDM(payload[0]))
rlen = pd_svdm(port, cnt, payload, &rdata);
else
rlen = pd_custom_vdm(port, cnt, payload, &rdata);
if (rlen > 0) {
queue_vdm(port, rdata, &rdata[1], rlen - 1);
return;
}
if (debug_level >= 2)
CPRINTF("Unhandled VDM VID %04x CMD %04x\n",
PD_VDO_VID(payload[0]), payload[0] & 0xFFFF);
}
void pd_execute_hard_reset(int port)
{
if (pd[port].last_state == PD_STATE_HARD_RESET_SEND)
CPRINTF("C%d HARD RST TX\n", port);
else
CPRINTF("C%d HARD RST RX\n", port);
pd[port].msg_id = 0;
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
pd_dfp_exit_mode(port, 0, 0);
#endif
#ifdef CONFIG_USB_PD_REV30
pd[port].rev = PD_REV30;
pd_ca_reset(port);
#endif
/*
* Fake set last state to hard reset to make sure that the next
* state to run knows that we just did a hard reset.
*/
pd[port].last_state = PD_STATE_HARD_RESET_EXECUTE;
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* If we are swapping to a source and have changed to Rp, restore back
* to Rd and turn off vbus to match our power_role.
*/
if (pd[port].task_state == PD_STATE_SNK_SWAP_STANDBY ||
pd[port].task_state == PD_STATE_SNK_SWAP_COMPLETE) {
tcpm_set_cc(port, TYPEC_CC_RD);
pd_power_supply_reset(port);
}
if (pd[port].power_role == PD_ROLE_SINK) {
/* Clear the input current limit */
pd_set_input_current_limit(port, 0, 0);
#ifdef CONFIG_CHARGE_MANAGER
//charge_manager_set_ceil(port,
// CEIL_REQUESTOR_PD,
// CHARGE_CEIL_NONE);
#endif /* CONFIG_CHARGE_MANAGER */
set_state(port, PD_STATE_SNK_HARD_RESET_RECOVER);
return;
}
#endif /* CONFIG_USB_PD_DUAL_ROLE */
/* We are a source, cut power */
pd_power_supply_reset(port);
pd[port].src_recover = get_time().val + PD_T_SRC_RECOVER;
set_state(port, PD_STATE_SRC_HARD_RESET_RECOVER);
}
static void execute_soft_reset(int port)
{
pd[port].msg_id = 0;
set_state(port, DUAL_ROLE_IF_ELSE(port, PD_STATE_SNK_DISCOVERY,
PD_STATE_SRC_DISCOVERY));
CPRINTF("C%d Soft Rst\n", port);
}
void pd_soft_reset(void)
{
int i;
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; ++i)
if (pd_is_connected(i)) {
set_state(i, PD_STATE_SOFT_RESET);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(i));
}
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* Request desired charge voltage from source.
* Returns EC_SUCCESS on success or non-zero on failure.
*/
static int pd_send_request_msg(int port, int always_send_request)
{
uint32_t rdo, curr_limit, supply_voltage;
int res;
#ifdef CONFIG_CHARGE_MANAGER
//int charging = (charge_manager_get_active_charge_port() == port);
const int charging = 1;
#else
const int charging = 1;
#endif
#ifdef CONFIG_USB_PD_CHECK_MAX_REQUEST_ALLOWED
int max_request_allowed = pd_is_max_request_allowed();
#else
const int max_request_allowed = 1;
#endif
/* Clear new power request */
pd[port].new_power_request = 0;
/* Build and send request RDO */
/*
* If this port is not actively charging or we are not allowed to
* request the max voltage, then select vSafe5V
*/
res = pd_build_request(port, &rdo, &curr_limit, &supply_voltage,
charging && max_request_allowed ?
PD_REQUEST_MAX : PD_REQUEST_VSAFE5V);
if (res != EC_SUCCESS)
/*
* If fail to choose voltage, do nothing, let source re-send
* source cap
*/
return -1;
if (!always_send_request) {
/* Don't re-request the same voltage */
if (pd[port].prev_request_mv == supply_voltage)
return EC_SUCCESS;
#ifdef CONFIG_CHARGE_MANAGER
/* Limit current to PD_MIN_MA during transition */
//else
// charge_manager_force_ceil(port, PD_MIN_MA);
#endif
}
CPRINTF("Req C%d [%d] %dmV %dmA", port, RDO_POS(rdo),
supply_voltage, curr_limit);
if (rdo & RDO_CAP_MISMATCH)
CPRINTF(" Mismatch");
CPRINTF("\n");
pd[port].curr_limit = curr_limit;
pd[port].supply_voltage = supply_voltage;
pd[port].prev_request_mv = supply_voltage;
res = send_request(port, rdo);
if (res < 0)
return res;
set_state(port, PD_STATE_SNK_REQUESTED);
return EC_SUCCESS;
}
#endif
static void pd_update_pdo_flags(int port, uint32_t pdo)
{
#ifdef CONFIG_CHARGE_MANAGER
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
int charge_whitelisted =
(pd[port].power_role == PD_ROLE_SINK &&
pd_charge_from_device(pd_get_identity_vid(port),
pd_get_identity_pid(port)));
#else
const int charge_whitelisted = 0;
#endif
#endif
/* can only parse PDO flags if type is fixed */
if ((pdo & PDO_TYPE_MASK) != PDO_TYPE_FIXED)
return;
#ifdef CONFIG_USB_PD_DUAL_ROLE
if (pdo & PDO_FIXED_DUAL_ROLE)
pd[port].flags |= PD_FLAGS_PARTNER_DR_POWER;
else
pd[port].flags &= ~PD_FLAGS_PARTNER_DR_POWER;
if (pdo & PDO_FIXED_EXTERNAL)
pd[port].flags |= PD_FLAGS_PARTNER_EXTPOWER;
else
pd[port].flags &= ~PD_FLAGS_PARTNER_EXTPOWER;
if (pdo & PDO_FIXED_COMM_CAP)
pd[port].flags |= PD_FLAGS_PARTNER_USB_COMM;
else
pd[port].flags &= ~PD_FLAGS_PARTNER_USB_COMM;
#endif
if (pdo & PDO_FIXED_DATA_SWAP)
pd[port].flags |= PD_FLAGS_PARTNER_DR_DATA;
else
pd[port].flags &= ~PD_FLAGS_PARTNER_DR_DATA;
#ifdef CONFIG_CHARGE_MANAGER
/*
* Treat device as a dedicated charger (meaning we should charge
* from it) if it does not support power swap, or if it is externally
* powered, or if we are a sink and the device identity matches a
* charging white-list.
*/
/*
if (!(pd[port].flags & PD_FLAGS_PARTNER_DR_POWER) ||
(pd[port].flags & PD_FLAGS_PARTNER_EXTPOWER) ||
charge_whitelisted)
charge_manager_update_dualrole(port, CAP_DEDICATED);
else
charge_manager_update_dualrole(port, CAP_DUALROLE);
*/
#endif
}
static void handle_data_request(int port, uint16_t head,
uint32_t *payload)
{
int type = PD_HEADER_TYPE(head);
int cnt = PD_HEADER_CNT(head);
switch (type) {
#ifdef CONFIG_USB_PD_DUAL_ROLE
case PD_DATA_SOURCE_CAP:
if ((pd[port].task_state == PD_STATE_SNK_DISCOVERY)
|| (pd[port].task_state == PD_STATE_SNK_TRANSITION)
#ifdef CONFIG_USB_PD_VBUS_DETECT_NONE
|| (pd[port].task_state ==
PD_STATE_SNK_HARD_RESET_RECOVER)
#endif
|| (pd[port].task_state == PD_STATE_SNK_READY)) {
#ifdef CONFIG_USB_PD_REV30
/*
* Only adjust sink rev if source rev is higher.
*/
if (PD_HEADER_REV(head) < pd[port].rev)
pd[port].rev = PD_HEADER_REV(head);
#endif
/* Port partner is now known to be PD capable */
pd[port].flags |= PD_FLAGS_PREVIOUS_PD_CONN;
/* src cap 0 should be fixed PDO */
pd_update_pdo_flags(port, payload[0]);
pd_process_source_cap(port, cnt, payload);
/* Source will resend source cap on failure */
pd_send_request_msg(port, 1);
// We call the callback after we send the request
// because the timing on Request seems to be sensitive
// User code can take the time until PS_RDY to do stuff
pd_process_source_cap_callback(port, cnt, payload);
}
break;
#endif /* CONFIG_USB_PD_DUAL_ROLE */
case PD_DATA_REQUEST:
if ((pd[port].power_role == PD_ROLE_SOURCE) && (cnt == 1)) {
#ifdef CONFIG_USB_PD_REV30
/*
* Adjust the rev level to what the sink supports. If
* they're equal, no harm done.
*/
pd[port].rev = PD_HEADER_REV(head);
#endif
if (!pd_check_requested_voltage(payload[0], port)) {
if (send_control(port, PD_CTRL_ACCEPT) < 0)
/*
* if we fail to send accept, do
* nothing and let sink timeout and
* send hard reset
*/
return;
/* explicit contract is now in place */
pd[port].flags |= PD_FLAGS_EXPLICIT_CONTRACT;
#ifdef CONFIG_USB_PD_REV30
/*
* Start Source-coordinated collision
* avoidance
*/
if (pd[port].rev == PD_REV30 &&
pd[port].power_role == PD_ROLE_SOURCE)
sink_can_xmit(port, SINK_TX_OK);
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE
#ifdef CONFIG_BBRAM
pd_set_saved_active(port, 1);
#endif
#endif
pd[port].requested_idx = RDO_POS(payload[0]);
set_state(port, PD_STATE_SRC_ACCEPTED);
return;
}
}
/* the message was incorrect or cannot be satisfied */
send_control(port, PD_CTRL_REJECT);
/* keep last contract in place (whether implicit or explicit) */
set_state(port, PD_STATE_SRC_READY);
break;
case PD_DATA_BIST:
/* If not in READY state, then don't start BIST */
if (DUAL_ROLE_IF_ELSE(port,
pd[port].task_state == PD_STATE_SNK_READY,
pd[port].task_state == PD_STATE_SRC_READY)) {
/* currently only support sending bist carrier mode 2 */
if ((payload[0] >> 28) == 5) {
/* bist data object mode is 2 */
pd_transmit(port, TCPC_TX_BIST_MODE_2, 0,
NULL);
/* Set to appropriate port disconnected state */
set_state(port, DUAL_ROLE_IF_ELSE(port,
PD_STATE_SNK_DISCONNECTED,
PD_STATE_SRC_DISCONNECTED));
}
}
break;
case PD_DATA_SINK_CAP:
pd[port].flags |= PD_FLAGS_SNK_CAP_RECVD;
/* snk cap 0 should be fixed PDO */
pd_update_pdo_flags(port, payload[0]);
if (pd[port].task_state == PD_STATE_SRC_GET_SINK_CAP)
set_state(port, PD_STATE_SRC_READY);
break;
#ifdef CONFIG_USB_PD_REV30
case PD_DATA_BATTERY_STATUS:
break;
#endif
case PD_DATA_VENDOR_DEF:
handle_vdm_request(port, cnt, payload);
break;
default:
CPRINTF("Unhandled data message type %d\n", type);
}
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
void pd_request_power_swap(int port)
{
if (pd[port].task_state == PD_STATE_SRC_READY)
set_state(port, PD_STATE_SRC_SWAP_INIT);
else if (pd[port].task_state == PD_STATE_SNK_READY)
set_state(port, PD_STATE_SNK_SWAP_INIT);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
#ifdef CONFIG_USBC_VCONN_SWAP
static void pd_request_vconn_swap(int port)
{
if (pd[port].task_state == PD_STATE_SRC_READY ||
pd[port].task_state == PD_STATE_SNK_READY)
set_state(port, PD_STATE_VCONN_SWAP_SEND);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
void pd_try_vconn_src(int port)
{
/*
* If we don't currently provide vconn, and we can supply it, send
* a vconn swap request.
*/
if (!(pd[port].flags & PD_FLAGS_VCONN_ON)) {
if (pd_check_vconn_swap(port))
pd_request_vconn_swap(port);
}
}
#endif
#endif /* CONFIG_USB_PD_DUAL_ROLE */
void pd_request_data_swap(int port)
{
if (DUAL_ROLE_IF_ELSE(port,
pd[port].task_state == PD_STATE_SNK_READY,
pd[port].task_state == PD_STATE_SRC_READY))
set_state(port, PD_STATE_DR_SWAP);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
static void pd_set_data_role(int port, int role)
{
pd[port].data_role = role;
pd_execute_data_swap(port, role);
#ifdef CONFIG_USBC_SS_MUX
#ifdef CONFIG_USBC_SS_MUX_DFP_ONLY
/*
* Need to connect SS mux for if new data role is DFP.
* If new data role is UFP, then disconnect the SS mux.
*/
if (role == PD_ROLE_DFP)
usb_mux_set(port, TYPEC_MUX_USB, USB_SWITCH_CONNECT,
pd[port].polarity);
else
usb_mux_set(port, TYPEC_MUX_NONE, USB_SWITCH_DISCONNECT,
pd[port].polarity);
#else
usb_mux_set(port, TYPEC_MUX_USB, USB_SWITCH_CONNECT,
pd[port].polarity);
#endif
#endif
pd_update_roles(port);
}
static void pd_dr_swap(int port)
{
pd_set_data_role(port, !pd[port].data_role);
pd[port].flags |= PD_FLAGS_CHECK_IDENTITY;
}
static void handle_ctrl_request(int port, uint16_t head,
uint32_t *payload)
{
int type = PD_HEADER_TYPE(head);
int res;
switch (type) {
case PD_CTRL_GOOD_CRC:
/* should not get it */
break;
case PD_CTRL_PING:
/* Nothing else to do */
break;
case PD_CTRL_GET_SOURCE_CAP:
res = send_source_cap(port);
if ((res >= 0) &&
(pd[port].task_state == PD_STATE_SRC_DISCOVERY))
set_state(port, PD_STATE_SRC_NEGOCIATE);
break;
case PD_CTRL_GET_SINK_CAP:
#ifdef CONFIG_USB_PD_DUAL_ROLE
send_sink_cap(port);
#else
send_control(port, REFUSE(pd[port].rev));
#endif
break;
#ifdef CONFIG_USB_PD_DUAL_ROLE
case PD_CTRL_GOTO_MIN:
#ifdef CONFIG_USB_PD_GIVE_BACK
if (pd[port].task_state == PD_STATE_SNK_READY) {
/*
* Reduce power consumption now!
*
* The source will restore power to this sink
* by sending a new source cap message at a
* later time.
*/
pd_snk_give_back(port, &pd[port].curr_limit,
&pd[port].supply_voltage);
set_state(port, PD_STATE_SNK_TRANSITION);
}
#endif
break;
case PD_CTRL_PS_RDY:
if (pd[port].task_state == PD_STATE_SNK_SWAP_SRC_DISABLE) {
set_state(port, PD_STATE_SNK_SWAP_STANDBY);
} else if (pd[port].task_state == PD_STATE_SRC_SWAP_STANDBY) {
/* reset message ID and swap roles */
pd[port].msg_id = 0;
pd[port].power_role = PD_ROLE_SINK;
pd_update_roles(port);
set_state(port, PD_STATE_SNK_DISCOVERY);
#ifdef CONFIG_USBC_VCONN_SWAP
} else if (pd[port].task_state == PD_STATE_VCONN_SWAP_INIT) {
/*
* If VCONN is on, then this PS_RDY tells us it's
* ok to turn VCONN off
*/
if (pd[port].flags & PD_FLAGS_VCONN_ON)
set_state(port, PD_STATE_VCONN_SWAP_READY);
#endif
} else if (pd[port].task_state == PD_STATE_SNK_DISCOVERY) {
/* Don't know what power source is ready. Reset. */
set_state(port, PD_STATE_HARD_RESET_SEND);
} else if (pd[port].task_state == PD_STATE_SNK_SWAP_STANDBY) {
/* Do nothing, assume this is a redundant PD_RDY */
} else if (pd[port].power_role == PD_ROLE_SINK) {
set_state(port, PD_STATE_SNK_READY);
pd_set_input_current_limit(port, pd[port].curr_limit,
pd[port].supply_voltage);
#ifdef CONFIG_CHARGE_MANAGER
/* Set ceiling based on what's negotiated */
//charge_manager_set_ceil(port,
// CEIL_REQUESTOR_PD,
// pd[port].curr_limit);
#endif
}
break;
#endif
case PD_CTRL_REJECT:
case PD_CTRL_WAIT:
if (pd[port].task_state == PD_STATE_DR_SWAP)
set_state(port, READY_RETURN_STATE(port));
#ifdef CONFIG_USBC_VCONN_SWAP
else if (pd[port].task_state == PD_STATE_VCONN_SWAP_SEND)
set_state(port, READY_RETURN_STATE(port));
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE
else if (pd[port].task_state == PD_STATE_SRC_SWAP_INIT)
set_state(port, PD_STATE_SRC_READY);
else if (pd[port].task_state == PD_STATE_SNK_SWAP_INIT)
set_state(port, PD_STATE_SNK_READY);
else if (pd[port].task_state == PD_STATE_SNK_REQUESTED) {
/*
* Explicit Contract in place
*
* On reception of a WAIT message, transition to
* PD_STATE_SNK_READY after PD_T_SINK_REQUEST ms to
* send another reqest.
*
* On reception of a REJECT messag, transition to
* PD_STATE_SNK_READY but don't resend the request.
*
* NO Explicit Contract in place
*
* On reception of a WAIT or REJECT message,
* transition to PD_STATE_SNK_DISCOVERY
*/
if (pd[port].flags & PD_FLAGS_EXPLICIT_CONTRACT) {
/* We have an explicit contract */
if (type == PD_CTRL_WAIT) {
/*
* Trigger a new power request when
* we enter PD_STATE_SNK_READY
*/
pd[port].new_power_request = 1;
/*
* After the request is triggered,
* make sure the request is sent.
*/
pd[port].prev_request_mv = 0;
/*
* Transition to PD_STATE_SNK_READY
* after PD_T_SINK_REQUEST ms.
*/
set_state_timeout(port, get_time().val +
PD_T_SINK_REQUEST,
PD_STATE_SNK_READY);
} else {
/* The request was rejected */
set_state(port, PD_STATE_SNK_READY);
}
} else {
/* No explicit contract */
set_state(port, PD_STATE_SNK_DISCOVERY);
}
}
#endif
break;
case PD_CTRL_ACCEPT:
if (pd[port].task_state == PD_STATE_SOFT_RESET) {
/*
* For the case that we sent soft reset in SNK_DISCOVERY
* on startup due to VBUS never low, clear the flag.
*/
pd[port].flags &= ~PD_FLAGS_VBUS_NEVER_LOW;
execute_soft_reset(port);
} else if (pd[port].task_state == PD_STATE_DR_SWAP) {
/* switch data role */
pd_dr_swap(port);
set_state(port, READY_RETURN_STATE(port));
#ifdef CONFIG_USB_PD_DUAL_ROLE
#ifdef CONFIG_USBC_VCONN_SWAP
} else if (pd[port].task_state == PD_STATE_VCONN_SWAP_SEND) {
/* switch vconn */
set_state(port, PD_STATE_VCONN_SWAP_INIT);
#endif
} else if (pd[port].task_state == PD_STATE_SRC_SWAP_INIT) {
/* explicit contract goes away for power swap */
pd[port].flags &= ~PD_FLAGS_EXPLICIT_CONTRACT;
set_state(port, PD_STATE_SRC_SWAP_SNK_DISABLE);
} else if (pd[port].task_state == PD_STATE_SNK_SWAP_INIT) {
/* explicit contract goes away for power swap */
pd[port].flags &= ~PD_FLAGS_EXPLICIT_CONTRACT;
set_state(port, PD_STATE_SNK_SWAP_SNK_DISABLE);
} else if (pd[port].task_state == PD_STATE_SNK_REQUESTED) {
/* explicit contract is now in place */
pd[port].flags |= PD_FLAGS_EXPLICIT_CONTRACT;
#ifdef CONFIG_BBRAM
pd_set_saved_active(port, 1);
#endif
set_state(port, PD_STATE_SNK_TRANSITION);
#endif
}
break;
case PD_CTRL_SOFT_RESET:
execute_soft_reset(port);
/* We are done, acknowledge with an Accept packet */
send_control(port, PD_CTRL_ACCEPT);
break;
case PD_CTRL_PR_SWAP:
#ifdef CONFIG_USB_PD_DUAL_ROLE
if (pd_check_power_swap(port)) {
send_control(port, PD_CTRL_ACCEPT);
/*
* Clear flag for checking power role to avoid
* immediately requesting another swap.
*/
pd[port].flags &= ~PD_FLAGS_CHECK_PR_ROLE;
set_state(port,
DUAL_ROLE_IF_ELSE(port,
PD_STATE_SNK_SWAP_SNK_DISABLE,
PD_STATE_SRC_SWAP_SNK_DISABLE));
} else {
send_control(port, REFUSE(pd[port].rev));
}
#else
send_control(port, REFUSE(pd[port].rev));
#endif
break;
case PD_CTRL_DR_SWAP:
if (pd_check_data_swap(port, pd[port].data_role)) {
/*
* Accept switch and perform data swap. Clear
* flag for checking data role to avoid
* immediately requesting another swap.
*/
pd[port].flags &= ~PD_FLAGS_CHECK_DR_ROLE;
if (send_control(port, PD_CTRL_ACCEPT) >= 0)
pd_dr_swap(port);
} else {
send_control(port, REFUSE(pd[port].rev));
}
break;
case PD_CTRL_VCONN_SWAP:
#ifdef CONFIG_USBC_VCONN_SWAP
if (pd[port].task_state == PD_STATE_SRC_READY ||
pd[port].task_state == PD_STATE_SNK_READY) {
if (pd_check_vconn_swap(port)) {
if (send_control(port, PD_CTRL_ACCEPT) > 0)
set_state(port,
PD_STATE_VCONN_SWAP_INIT);
} else {
send_control(port, REFUSE(pd[port].rev));
}
}
#else
send_control(port, REFUSE(pd[port].rev));
#endif
break;
default:
#ifdef CONFIG_USB_PD_REV30
send_control(port, PD_CTRL_NOT_SUPPORTED);
#endif
CPRINTF("Unhandled ctrl message type %d\n", type);
}
}
#ifdef CONFIG_USB_PD_REV30
static void handle_ext_request(int port, uint16_t head, uint32_t *payload)
{
int type = PD_HEADER_TYPE(head);
switch (type) {
case PD_EXT_GET_BATTERY_CAP:
send_battery_cap(port, payload);
break;
case PD_EXT_GET_BATTERY_STATUS:
send_battery_status(port, payload);
break;
case PD_EXT_BATTERY_CAP:
break;
default:
send_control(port, PD_CTRL_NOT_SUPPORTED);
}
}
#endif
static void handle_request(int port, uint16_t head,
uint32_t *payload)
{
int cnt = PD_HEADER_CNT(head);
int p;
/* dump received packet content (only dump ping at debug level 3) */
if ((debug_level == 2 && PD_HEADER_TYPE(head) != PD_CTRL_PING) ||
debug_level >= 3) {
CPRINTF("RECV %04x/%d ", head, cnt);
for (p = 0; p < cnt; p++)
CPRINTF("[%d]%08x ", p, payload[p]);
CPRINTF("\n");
}
/*
* If we are in disconnected state, we shouldn't get a request.
* Ignore it if we get one.
*/
if (!pd_is_connected(port))
return;
#ifdef CONFIG_USB_PD_REV30
/* Check if this is an extended chunked data message. */
if (pd[port].rev == PD_REV30 && PD_HEADER_EXT(head)) {
handle_ext_request(port, head, payload);
return;
}
#endif
if (cnt)
handle_data_request(port, head, payload);
else
handle_ctrl_request(port, head, payload);
}
void pd_send_vdm(int port, uint32_t vid, int cmd, const uint32_t *data,
int count)
{
if (count > VDO_MAX_SIZE - 1) {
CPRINTF("VDM over max size\n");
return;
}
/* set VDM header with VID & CMD */
pd[port].vdo_data[0] = VDO(vid, ((vid & USB_SID_PD) == USB_SID_PD) ?
1 : (PD_VDO_CMD(cmd) <= CMD_ATTENTION), cmd);
#ifdef CONFIG_USB_PD_REV30
pd[port].vdo_data[0] |= VDO_SVDM_VERS(vdo_ver[pd[port].rev]);
#endif
queue_vdm(port, pd[port].vdo_data, data, count);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
static inline int pdo_busy(int port)
{
/*
* Note, main PDO state machine (pd_task) uses READY state exclusively
* to denote port partners have successfully negociated a contract. All
* other protocol actions force state transitions.
*/
int rv = (pd[port].task_state != PD_STATE_SRC_READY);
#ifdef CONFIG_USB_PD_DUAL_ROLE
rv &= (pd[port].task_state != PD_STATE_SNK_READY);
#endif
return rv;
}
static uint64_t vdm_get_ready_timeout(uint32_t vdm_hdr)
{
uint64_t timeout;
int cmd = PD_VDO_CMD(vdm_hdr);
/* its not a structured VDM command */
if (!PD_VDO_SVDM(vdm_hdr))
return 500*MSEC_US;
switch (PD_VDO_CMDT(vdm_hdr)) {
case CMDT_INIT:
if ((cmd == CMD_ENTER_MODE) || (cmd == CMD_EXIT_MODE))
timeout = PD_T_VDM_WAIT_MODE_E;
else
timeout = PD_T_VDM_SNDR_RSP;
break;
default:
if ((cmd == CMD_ENTER_MODE) || (cmd == CMD_EXIT_MODE))
timeout = PD_T_VDM_E_MODE;
else
timeout = PD_T_VDM_RCVR_RSP;
break;
}
return timeout;
}
static void pd_vdm_send_state_machine(int port)
{
int res;
uint16_t header;
/*static int old_vdm_state = 0;
if (pd[port].vdm_state != old_vdm_state) {
CPRINTF("VDM state: %d\n", pd[port].vdm_state);
old_vdm_state = pd[port].vdm_state;
}*/
switch (pd[port].vdm_state) {
case VDM_STATE_READY:
/* Only transmit VDM if connected. */
if (!pd_is_connected(port)) {
pd[port].vdm_state = VDM_STATE_ERR_BUSY;
break;
}
/*
* if there's traffic or we're not in PDO ready state don't send
* a VDM.
*/
if (pdo_busy(port))
break;
/* Prepare and send VDM */
header = PD_HEADER(PD_DATA_VENDOR_DEF, pd[port].power_role,
pd[port].data_role, pd[port].msg_id,
(int)pd[port].vdo_count,
pd_get_rev(port), 0);
res = pd_transmit(port, TCPC_TX_SOP, header,
pd[port].vdo_data);
if (res < 0) {
pd[port].vdm_state = VDM_STATE_ERR_SEND;
} else {
pd[port].vdm_state = VDM_STATE_BUSY;
pd[port].vdm_timeout.val = get_time().val +
vdm_get_ready_timeout(pd[port].vdo_data[0]);
}
break;
case VDM_STATE_WAIT_RSP_BUSY:
/* wait and then initiate request again */
if (get_time().val > pd[port].vdm_timeout.val) {
pd[port].vdo_data[0] = pd[port].vdo_retry;
pd[port].vdo_count = 1;
pd[port].vdm_state = VDM_STATE_READY;
}
break;
case VDM_STATE_BUSY:
/* Wait for VDM response or timeout */
if (pd[port].vdm_timeout.val &&
(get_time().val > pd[port].vdm_timeout.val)) {
pd[port].vdm_state = VDM_STATE_ERR_TMOUT;
}
break;
default:
break;
}
}
#ifdef CONFIG_CMD_PD_DEV_DUMP_INFO
static inline void pd_dev_dump_info(uint16_t dev_id, uint8_t *hash)
{
int j;
ccprintf("DevId:%d.%d Hash:", HW_DEV_ID_MAJ(dev_id),
HW_DEV_ID_MIN(dev_id));
for (j = 0; j < PD_RW_HASH_SIZE; j += 4) {
ccprintf(" 0x%02x%02x%02x%02x", hash[j + 3], hash[j + 2],
hash[j + 1], hash[j]);
}
ccprintf("\n");
}
#endif /* CONFIG_CMD_PD_DEV_DUMP_INFO */
int pd_dev_store_rw_hash(int port, uint16_t dev_id, uint32_t *rw_hash,
uint32_t current_image)
{
#ifdef CONFIG_COMMON_RUNTIME
int i;
#endif
#ifdef CONFIG_USB_PD_CHROMEOS
pd[port].dev_id = dev_id;
memcpy(pd[port].dev_rw_hash, rw_hash, PD_RW_HASH_SIZE);
#endif
#ifdef CONFIG_CMD_PD_DEV_DUMP_INFO
if (debug_level >= 2)
pd_dev_dump_info(dev_id, (uint8_t *)rw_hash);
#endif
#ifdef CONFIG_USB_PD_CHROMEOS
pd[port].current_image = current_image;
#endif
#ifdef CONFIG_COMMON_RUNTIME
/* Search table for matching device / hash */
for (i = 0; i < RW_HASH_ENTRIES; i++)
if (dev_id == rw_hash_table[i].dev_id)
return !memcmp(rw_hash,
rw_hash_table[i].dev_rw_hash,
PD_RW_HASH_SIZE);
#endif
return 0;
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
enum pd_dual_role_states pd_get_dual_role(void)
{
return drp_state;
}
#ifdef CONFIG_USB_PD_TRY_SRC
static void pd_update_try_source(void)
{
int i;
#ifndef CONFIG_CHARGER
int batt_soc = board_get_battery_soc();
#else
int batt_soc = charge_get_percent();
#endif
/*
* Enable try source when dual-role toggling AND battery is present
* and at some minimum percentage.
*/
pd_try_src_enable = drp_state == PD_DRP_TOGGLE_ON &&
batt_soc >= CONFIG_USB_PD_TRY_SRC_MIN_BATT_SOC;
#if defined(CONFIG_BATTERY_PRESENT_CUSTOM) || \
defined(CONFIG_BATTERY_PRESENT_GPIO)
/*
* When battery is cutoff in ship mode it may not be reliable to
* check if battery is present with its state of charge.
* Also check if battery is initialized and ready to provide power.
*/
pd_try_src_enable &= (battery_is_present() == BP_YES);
#endif
/*
* Clear this flag to cover case where a TrySrc
* mode went from enabled to disabled and trying_source
* was active at that time.
*/
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++)
pd[i].flags &= ~PD_FLAGS_TRY_SRC;
}
DECLARE_HOOK(HOOK_BATTERY_SOC_CHANGE, pd_update_try_source, HOOK_PRIO_DEFAULT);
#endif
void pd_set_dual_role(enum pd_dual_role_states state)
{
int i;
drp_state = state;
#ifdef CONFIG_USB_PD_TRY_SRC
pd_update_try_source();
#endif
/* Inform PD tasks of dual role change. */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++)
// getting rid of task stuff
//task_set_event(PD_PORT_TO_TASK_ID(i),
// PD_EVENT_UPDATE_DUAL_ROLE, 0);
;
}
void pd_update_dual_role_config(int port)
{
/*
* Change to sink if port is currently a source AND (new DRP
* state is force sink OR new DRP state is either toggle off
* or debug accessory toggle only and we are in the source
* disconnected state).
*/
if (pd[port].power_role == PD_ROLE_SOURCE &&
((drp_state == PD_DRP_FORCE_SINK && !pd_ts_dts_plugged(port)) ||
(drp_state == PD_DRP_TOGGLE_OFF
&& pd[port].task_state == PD_STATE_SRC_DISCONNECTED))) {
pd[port].power_role = PD_ROLE_SINK;
set_state(port, PD_STATE_SNK_DISCONNECTED);
tcpm_set_cc(port, TYPEC_CC_RD);
/* Make sure we're not sourcing VBUS. */
pd_power_supply_reset(port);
}
/*
* Change to source if port is currently a sink and the
* new DRP state is force source.
*/
if (pd[port].power_role == PD_ROLE_SINK &&
drp_state == PD_DRP_FORCE_SOURCE) {
pd[port].power_role = PD_ROLE_SOURCE;
set_state(port, PD_STATE_SRC_DISCONNECTED);
tcpm_set_cc(port, TYPEC_CC_RP);
}
#if defined(CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE) && \
defined(CONFIG_USB_PD_TCPC_LOW_POWER)
/* When switching drp mode, make sure tcpc is out of standby mode */
tcpm_set_drp_toggle(port, 0);
#endif
}
int pd_get_role(int port)
{
return pd[port].power_role;
}
static int pd_is_power_swapping(int port)
{
/* return true if in the act of swapping power roles */
return pd[port].task_state == PD_STATE_SNK_SWAP_SNK_DISABLE ||
pd[port].task_state == PD_STATE_SNK_SWAP_SRC_DISABLE ||
pd[port].task_state == PD_STATE_SNK_SWAP_STANDBY ||
pd[port].task_state == PD_STATE_SNK_SWAP_COMPLETE ||
pd[port].task_state == PD_STATE_SRC_SWAP_SNK_DISABLE ||
pd[port].task_state == PD_STATE_SRC_SWAP_SRC_DISABLE ||
pd[port].task_state == PD_STATE_SRC_SWAP_STANDBY;
}
/*
* Provide Rp to ensure the partner port is in a known state (eg. not
* PD negotiated, not sourcing 20V).
*/
static void pd_partner_port_reset(int port)
{
uint64_t timeout;
#ifdef CONFIG_BBRAM
/*
* Check our battery-backed previous port state. If PD comms were
* active, and we didn't just lose power, make sure we
* don't boot into RO with a pre-existing power contract.
*/
if (!pd_get_saved_active(port) ||
system_get_image_copy() != SYSTEM_IMAGE_RO ||
system_get_reset_flags() &
(RESET_FLAG_BROWNOUT | RESET_FLAG_POWER_ON))
return;
#endif // CONFIG_BBRAM
/* Provide Rp for 100 msec. or until we no longer have VBUS. */
tcpm_set_cc(port, TYPEC_CC_RP);
timeout = get_time().val + 100 * MSEC_US;
while (get_time().val < timeout && pd_is_vbus_present(port))
msleep(10);
#ifdef CONFIG_BBRAM
pd_set_saved_active(port, 0);
#endif
}
#endif /* CONFIG_USB_PD_DUAL_ROLE */
int pd_get_polarity(int port)
{
return pd[port].polarity;
}
int pd_get_partner_data_swap_capable(int port)
{
/* return data swap capable status of port partner */
return pd[port].flags & PD_FLAGS_PARTNER_DR_DATA;
}
#ifdef CONFIG_COMMON_RUNTIME
void pd_comm_enable(int port, int enable)
{
/* We don't check port >= CONFIG_USB_PD_PORT_COUNT deliberately */
pd_comm_enabled[port] = enable;
/* If type-C connection, then update the TCPC RX enable */
if (pd_is_connected(port))
tcpm_set_rx_enable(port, enable);
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* If communications are enabled, start hard reset timer for
* any port in PD_SNK_DISCOVERY.
*/
if (enable && pd[port].task_state == PD_STATE_SNK_DISCOVERY)
set_state_timeout(port,
get_time().val + PD_T_SINK_WAIT_CAP,
PD_STATE_HARD_RESET_SEND);
#endif
}
#endif
void pd_ping_enable(int port, int enable)
{
if (enable)
pd[port].flags |= PD_FLAGS_PING_ENABLED;
else
pd[port].flags &= ~PD_FLAGS_PING_ENABLED;
}
/**
* Returns whether the sink has detected a Rp resistor on the other side.
*/
static inline int cc_is_rp(int cc)
{
return (cc == TYPEC_CC_VOLT_SNK_DEF) || (cc == TYPEC_CC_VOLT_SNK_1_5) ||
(cc == TYPEC_CC_VOLT_SNK_3_0);
}
/*
* CC values for regular sources and Debug sources (aka DTS)
*
* Source type Mode of Operation CC1 CC2
* ---------------------------------------------
* Regular Default USB Power RpUSB Open
* Regular USB-C @ 1.5 A Rp1A5 Open
* Regular USB-C @ 3 A Rp3A0 Open
* DTS Default USB Power Rp3A0 Rp1A5
* DTS USB-C @ 1.5 A Rp1A5 RpUSB
* DTS USB-C @ 3 A Rp3A0 RpUSB
*/
/**
* Returns the polarity of a Sink.
*/
static inline int get_snk_polarity(int cc1, int cc2)
{
/* the following assumes:
* TYPEC_CC_VOLT_SNK_3_0 > TYPEC_CC_VOLT_SNK_1_5
* TYPEC_CC_VOLT_SNK_1_5 > TYPEC_CC_VOLT_SNK_DEF
* TYPEC_CC_VOLT_SNK_DEF > TYPEC_CC_VOLT_OPEN
*/
return (cc2 > cc1);
}
#if defined(CONFIG_CHARGE_MANAGER)
/**
* Returns type C current limit (mA) based upon cc_voltage (mV).
*/
static typec_current_t get_typec_current_limit(int polarity, int cc1, int cc2)
{
typec_current_t charge;
int cc = polarity ? cc2 : cc1;
int cc_alt = polarity ? cc1 : cc2;
if (cc == TYPEC_CC_VOLT_SNK_3_0 && cc_alt != TYPEC_CC_VOLT_SNK_1_5)
charge = 3000;
else if (cc == TYPEC_CC_VOLT_SNK_1_5)
charge = 1500;
else
charge = 0;
if (cc_is_rp(cc_alt))
charge |= TYPEC_CURRENT_DTS_MASK;
return charge;
}
/**
* Signal power request to indicate a charger update that affects the port.
*/
void pd_set_new_power_request(int port)
{
pd[port].new_power_request = 1;
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
#endif /* CONFIG_CHARGE_MANAGER */
#if defined(CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP) && defined(CONFIG_USBC_SS_MUX)
/*
* Backwards compatible DFP does not support USB SS because it applies VBUS
* before debouncing CC and setting USB SS muxes, but SS detection will fail
* before we are done debouncing CC.
*/
#error "Backwards compatible DFP does not support USB"
#endif
#ifdef CONFIG_COMMON_RUNTIME
/* Initialize globals based on system state. */
static void pd_init_tasks(void)
{
static int initialized;
int enable = 1;
int i;
/* Initialize globals once, for all PD tasks. */
if (initialized)
return;
#if defined(HAS_TASK_CHIPSET) && defined(CONFIG_USB_PD_DUAL_ROLE)
/* Set dual-role state based on chipset power state */
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
drp_state = PD_DRP_FORCE_SINK;
else if (chipset_in_state(CHIPSET_STATE_SUSPEND))
drp_state = PD_DRP_TOGGLE_OFF;
else /* CHIPSET_STATE_ON */
drp_state = PD_DRP_TOGGLE_ON;
#endif
#if defined(CONFIG_USB_PD_COMM_DISABLED)
enable = 0;
#elif defined(CONFIG_USB_PD_COMM_LOCKED)
/* Disable PD communication at init if we're in RO and locked. */
if (!system_is_in_rw() && system_is_locked())
enable = 0;
#endif
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++)
pd_comm_enabled[i] = enable;
CPRINTS("PD comm %sabled", enable ? "en" : "dis");
initialized = 1;
}
#endif /* CONFIG_COMMON_RUNTIME */
#ifndef CONFIG_USB_PD_TCPC
static int pd_restart_tcpc(int port)
{
if (board_set_tcpc_power_mode) {
/* force chip reset */
board_set_tcpc_power_mode(port, 0);
}
return tcpm_init(port);
}
#endif
void pd_init(int port)
{
#ifdef CONFIG_COMMON_RUNTIME
pd_init_tasks();
#endif
/* Ensure the power supply is in the default state */
pd_power_supply_reset(port);
#ifdef CONFIG_USB_PD_TCPC_BOARD_INIT
/* Board specific TCPC init */
board_tcpc_init();
#endif
/* Initialize TCPM driver and wait for TCPC to be ready */
res = tcpm_init(port);
#ifdef CONFIG_USB_PD_DUAL_ROLE
//pd_partner_port_reset(port);
#endif
CPRINTS("TCPC p%d init %s", port, res ? "failed" : "ready");
this_state = res ? PD_STATE_SUSPENDED : PD_DEFAULT_STATE(port);
#ifdef CONFIG_USB_PD_REV30
/* Set Revision to highest */
pd[port].rev = PD_REV30;
pd_ca_reset(port);
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* If VBUS is high, then initialize flag for VBUS has always been
* present. This flag is used to maintain a PD connection after a
* reset by sending a soft reset.
*/
//pd[port].flags = pd_is_vbus_present(port) ? PD_FLAGS_VBUS_NEVER_LOW : 0;
pd[port].flags = 0;
#endif
/* Disable TCPC RX until connection is established */
tcpm_set_rx_enable(port, 0);
#ifdef CONFIG_USBC_SS_MUX
/* Initialize USB mux to its default state */
usb_mux_init(port);
#endif
/* Initialize PD protocol state variables for each port. */
pd[port].power_role = PD_ROLE_DEFAULT(port);
pd[port].vdm_state = VDM_STATE_DONE;
set_state(port, this_state);
#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
ASSERT(PD_ROLE_DEFAULT(port) == PD_ROLE_SINK);
tcpm_select_rp_value(port, CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT);
#else
tcpm_select_rp_value(port, CONFIG_USB_PD_PULLUP);
#endif
tcpm_set_cc(port, PD_ROLE_DEFAULT(port) == PD_ROLE_SOURCE ?
TYPEC_CC_RP : TYPEC_CC_RD);
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
/* Initialize PD Policy engine */
pd_dfp_pe_init(port);
#endif
#ifdef CONFIG_CHARGE_MANAGER
/* Initialize PD and type-C supplier current limits to 0 */
pd_set_input_current_limit(port, 0, 0);
//typec_set_input_current_limit(port, 0, 0);
//charge_manager_update_dualrole(port, CAP_UNKNOWN);
#endif
}
void pd_run_state_machine(int port)
{
#ifdef CONFIG_USB_PD_REV30
/* send any pending messages */
pd_ca_send_pending(port);
#endif
/* process VDM messages last */
pd_vdm_send_state_machine(port);
/* Verify board specific health status : current, voltages... */
res = pd_board_checks();
if (res != EC_SUCCESS) {
/* cut the power */
pd_execute_hard_reset(port);
/* notify the other side of the issue */
pd_transmit(port, TCPC_TX_HARD_RESET, 0, NULL);
}
/* wait for next event/packet or timeout expiration */
// getting rid of task stuff
//evt = task_wait_event(timeout);
#ifdef CONFIG_USB_PD_DUAL_ROLE
if (evt & PD_EVENT_UPDATE_DUAL_ROLE)
pd_update_dual_role_config(port);
#endif
#ifdef CONFIG_USB_PD_TCPC
/*
* run port controller task to check CC and/or read incoming
* messages
*/
tcpc_run(port, evt);
#else
/* if TCPC has reset, then need to initialize it again */
if (evt & PD_EVENT_TCPC_RESET) {
CPRINTS("TCPC p%d reset!", port);
if (tcpm_init(port) != EC_SUCCESS)
CPRINTS("TCPC p%d init failed", port);
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
}
if ((evt & PD_EVENT_TCPC_RESET) &&
(pd[port].task_state != PD_STATE_DRP_AUTO_TOGGLE)) {
#endif
/* Ensure CC termination is default */
tcpm_set_cc(port, PD_ROLE_DEFAULT(port) ==
PD_ROLE_SOURCE ? TYPEC_CC_RP : TYPEC_CC_RD);
/*
* If we have a stable contract in the default role,
* then simply update TCPC with some missing info
* so that we can continue without resetting PD comms.
* Otherwise, go to the default disconnected state
* and force renegotiation.
*/
if (pd[port].vdm_state == VDM_STATE_DONE && (
#ifdef CONFIG_USB_PD_DUAL_ROLE
(PD_ROLE_DEFAULT(port) == PD_ROLE_SINK &&
pd[port].task_state == PD_STATE_SNK_READY) ||
#endif
(PD_ROLE_DEFAULT(port) == PD_ROLE_SOURCE &&
pd[port].task_state == PD_STATE_SRC_READY))) {
tcpm_set_polarity(port, pd[port].polarity);
tcpm_set_msg_header(port, pd[port].power_role,
pd[port].data_role);
tcpm_set_rx_enable(port, 1);
} else {
/* Ensure state variables are at default */
pd[port].power_role = PD_ROLE_DEFAULT(port);
pd[port].vdm_state = VDM_STATE_DONE;
set_state(port, PD_DEFAULT_STATE(port));
}
}
#endif
/* process any potential incoming message */
incoming_packet = evt & PD_EVENT_RX;
//if (incoming_packet) {
if (!tcpm_get_message(port, payload, &head))
handle_request(port, head, payload);
//}
if (pd[port].req_suspend_state)
set_state(port, PD_STATE_SUSPENDED);
/* if nothing to do, verify the state of the world in 500ms */
this_state = pd[port].task_state;
timeout = 500*MSEC_US;
switch (this_state) {
case PD_STATE_DISABLED:
/* Nothing to do */
break;
case PD_STATE_SRC_DISCONNECTED:
timeout = 10*MSEC_US;
tcpm_get_cc(port, &cc1, &cc2);
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
/*
* Attempt TCPC auto DRP toggle if it is
* not already auto toggling and not try.src
*/
if (auto_toggle_supported &&
!(pd[port].flags & PD_FLAGS_TCPC_DRP_TOGGLE) &&
!(pd[port].flags & PD_FLAGS_TRY_SRC) &&
(cc1 == TYPEC_CC_VOLT_OPEN &&
cc2 == TYPEC_CC_VOLT_OPEN)) {
set_state(port, PD_STATE_DRP_AUTO_TOGGLE);
timeout = 2*MSEC_US;
break;
}
#endif
/* Vnc monitoring */
if ((cc1 == TYPEC_CC_VOLT_RD ||
cc2 == TYPEC_CC_VOLT_RD) ||
(cc1 == TYPEC_CC_VOLT_RA &&
cc2 == TYPEC_CC_VOLT_RA)) {
#ifdef CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP
/* Enable VBUS */
if (pd_set_power_supply_ready(port))
break;
#endif
pd[port].cc_state = PD_CC_NONE;
set_state(port,
PD_STATE_SRC_DISCONNECTED_DEBOUNCE);
}
#if defined(CONFIG_USB_PD_DUAL_ROLE)
/*
* Try.SRC state is embedded here. Wait for SNK
* detect, or if timer expires, transition to
* SNK_DISCONNETED.
*
* If Try.SRC state is not active, then this block
* handles the normal DRP toggle from SRC->SNK
*/
else if ((pd[port].flags & PD_FLAGS_TRY_SRC &&
get_time().val >= pd[port].try_src_marker) ||
(!(pd[port].flags & PD_FLAGS_TRY_SRC) &&
drp_state != PD_DRP_FORCE_SOURCE &&
drp_state != PD_DRP_FREEZE &&
get_time().val >= next_role_swap)) {
pd[port].power_role = PD_ROLE_SINK;
set_state(port, PD_STATE_SNK_DISCONNECTED);
tcpm_set_cc(port, TYPEC_CC_RD);
next_role_swap = get_time().val + PD_T_DRP_SNK;
pd[port].try_src_marker = get_time().val
+ PD_T_TRY_WAIT;
/* Swap states quickly */
timeout = 2*MSEC_US;
}
#endif
break;
case PD_STATE_SRC_DISCONNECTED_DEBOUNCE:
timeout = 20*MSEC_US;
tcpm_get_cc(port, &cc1, &cc2);
if (cc1 == TYPEC_CC_VOLT_RD &&
cc2 == TYPEC_CC_VOLT_RD) {
/* Debug accessory */
new_cc_state = PD_CC_DEBUG_ACC;
} else if (cc1 == TYPEC_CC_VOLT_RD ||
cc2 == TYPEC_CC_VOLT_RD) {
/* UFP attached */
new_cc_state = PD_CC_UFP_ATTACHED;
} else if (cc1 == TYPEC_CC_VOLT_RA &&
cc2 == TYPEC_CC_VOLT_RA) {
/* Audio accessory */
new_cc_state = PD_CC_AUDIO_ACC;
} else {
/* No UFP */
set_state(port, PD_STATE_SRC_DISCONNECTED);
timeout = 5*MSEC_US;
break;
}
/* If in Try.SRC state, then don't need to debounce */
if (!(pd[port].flags & PD_FLAGS_TRY_SRC)) {
/* Debounce the cc state */
if (new_cc_state != pd[port].cc_state) {
pd[port].cc_debounce = get_time().val +
PD_T_CC_DEBOUNCE;
pd[port].cc_state = new_cc_state;
break;
} else if (get_time().val <
pd[port].cc_debounce) {
break;
}
}
/* Debounce complete */
/* UFP is attached */
if (new_cc_state == PD_CC_UFP_ATTACHED ||
new_cc_state == PD_CC_DEBUG_ACC) {
pd[port].polarity = (cc1 != TYPEC_CC_VOLT_RD);
tcpm_set_polarity(port, pd[port].polarity);
/* initial data role for source is DFP */
pd_set_data_role(port, PD_ROLE_DFP);
if (new_cc_state == PD_CC_DEBUG_ACC)
pd[port].flags |=
PD_FLAGS_TS_DTS_PARTNER;
#ifndef CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP
/* Enable VBUS */
if (pd_set_power_supply_ready(port)) {
#ifdef CONFIG_USBC_SS_MUX
usb_mux_set(port, TYPEC_MUX_NONE,
USB_SWITCH_DISCONNECT,
pd[port].polarity);
#endif
break;
}
#endif
/* If PD comm is enabled, enable TCPC RX */
if (pd_comm_is_enabled(port))
tcpm_set_rx_enable(port, 1);
#ifdef CONFIG_USBC_VCONN
tcpm_set_vconn(port, 1);
pd[port].flags |= PD_FLAGS_VCONN_ON;
#endif
pd[port].flags |= PD_FLAGS_CHECK_PR_ROLE |
PD_FLAGS_CHECK_DR_ROLE;
hard_reset_count = 0;
timeout = 5*MSEC_US;
set_state(port, PD_STATE_SRC_STARTUP);
}
/*
* AUDIO_ACC will remain in this state indefinitely
* until disconnect.
*/
break;
case PD_STATE_SRC_HARD_RESET_RECOVER:
/* Do not continue until hard reset recovery time */
if (get_time().val < pd[port].src_recover) {
timeout = 50*MSEC_US;
break;
}
/* Enable VBUS */
timeout = 10*MSEC_US;
if (pd_set_power_supply_ready(port)) {
set_state(port, PD_STATE_SRC_DISCONNECTED);
break;
}
#ifdef CONFIG_USB_PD_TCPM_TCPCI
/*
* After transmitting hard reset, TCPM writes
* to RECEIVE_DETECT register to enable
* PD message passing.
*/
if (pd_comm_is_enabled(port))
tcpm_set_rx_enable(port, 1);
#endif /* CONFIG_USB_PD_TCPM_TCPCI */
set_state(port, PD_STATE_SRC_STARTUP);
break;
case PD_STATE_SRC_STARTUP:
/* Wait for power source to enable */
if (pd[port].last_state != pd[port].task_state) {
pd[port].flags |= PD_FLAGS_CHECK_IDENTITY;
/* reset various counters */
caps_count = 0;
pd[port].msg_id = 0;
snk_cap_count = 0;
set_state_timeout(
port,
#ifdef CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP
/*
* delay for power supply to start up.
* subtract out debounce time if coming
* from debounce state since vbus is
* on during debounce.
*/
get_time().val +
PD_POWER_SUPPLY_TURN_ON_DELAY -
(pd[port].last_state ==
PD_STATE_SRC_DISCONNECTED_DEBOUNCE
? PD_T_CC_DEBOUNCE : 0),
#else
get_time().val +
PD_POWER_SUPPLY_TURN_ON_DELAY,
#endif
PD_STATE_SRC_DISCOVERY);
}
break;
case PD_STATE_SRC_DISCOVERY:
if (pd[port].last_state != pd[port].task_state) {
/*
* If we have had PD connection with this port
* partner, then start NoResponseTimer.
*/
if (pd[port].flags & PD_FLAGS_PREVIOUS_PD_CONN)
set_state_timeout(port,
get_time().val +
PD_T_NO_RESPONSE,
hard_reset_count <
PD_HARD_RESET_COUNT ?
PD_STATE_HARD_RESET_SEND :
PD_STATE_SRC_DISCONNECTED);
}
/* Send source cap some minimum number of times */
if (caps_count < PD_CAPS_COUNT) {
/* Query capabilities of the other side */
res = send_source_cap(port);
/* packet was acked => PD capable device) */
if (res >= 0) {
set_state(port,
PD_STATE_SRC_NEGOCIATE);
timeout = 10*MSEC_US;
hard_reset_count = 0;
caps_count = 0;
/* Port partner is PD capable */
pd[port].flags |=
PD_FLAGS_PREVIOUS_PD_CONN;
} else { /* failed, retry later */
timeout = PD_T_SEND_SOURCE_CAP;
caps_count++;
}
}
break;
case PD_STATE_SRC_NEGOCIATE:
/* wait for a "Request" message */
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
PD_STATE_HARD_RESET_SEND);
break;
case PD_STATE_SRC_ACCEPTED:
/* Accept sent, wait for enabling the new voltage */
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(
port,
get_time().val +
PD_T_SINK_TRANSITION,
PD_STATE_SRC_POWERED);
break;
case PD_STATE_SRC_POWERED:
/* Switch to the new requested voltage */
if (pd[port].last_state != pd[port].task_state) {
pd_transition_voltage(pd[port].requested_idx);
set_state_timeout(
port,
get_time().val +
PD_POWER_SUPPLY_TURN_ON_DELAY,
PD_STATE_SRC_TRANSITION);
}
break;
case PD_STATE_SRC_TRANSITION:
/* the voltage output is good, notify the source */
res = send_control(port, PD_CTRL_PS_RDY);
if (res >= 0) {
timeout = 10*MSEC_US;
/* it'a time to ping regularly the sink */
set_state(port, PD_STATE_SRC_READY);
} else {
/* The sink did not ack, cut the power... */
set_state(port, PD_STATE_SRC_DISCONNECTED);
}
break;
case PD_STATE_SRC_READY:
timeout = PD_T_SOURCE_ACTIVITY;
/*
* Don't send any PD traffic if we woke up due to
* incoming packet or if VDO response pending to avoid
* collisions.
*/
if (incoming_packet ||
(pd[port].vdm_state == VDM_STATE_BUSY))
break;
/* Send updated source capabilities to our partner */
if (pd[port].flags & PD_FLAGS_UPDATE_SRC_CAPS) {
res = send_source_cap(port);
if (res >= 0) {
set_state(port,
PD_STATE_SRC_NEGOCIATE);
pd[port].flags &=
~PD_FLAGS_UPDATE_SRC_CAPS;
}
break;
}
/* Send get sink cap if haven't received it yet */
if (!(pd[port].flags & PD_FLAGS_SNK_CAP_RECVD)) {
if (++snk_cap_count <= PD_SNK_CAP_RETRIES) {
/* Get sink cap to know if dual-role device */
send_control(port, PD_CTRL_GET_SINK_CAP);
set_state(port, PD_STATE_SRC_GET_SINK_CAP);
break;
} else if (debug_level >= 2 &&
snk_cap_count == PD_SNK_CAP_RETRIES+1) {
CPRINTF("ERR SNK_CAP\n");
}
}
/* Check power role policy, which may trigger a swap */
if (pd[port].flags & PD_FLAGS_CHECK_PR_ROLE) {
pd_check_pr_role(port, PD_ROLE_SOURCE,
pd[port].flags);
pd[port].flags &= ~PD_FLAGS_CHECK_PR_ROLE;
break;
}
/* Check data role policy, which may trigger a swap */
if (pd[port].flags & PD_FLAGS_CHECK_DR_ROLE) {
pd_check_dr_role(port, pd[port].data_role,
pd[port].flags);
pd[port].flags &= ~PD_FLAGS_CHECK_DR_ROLE;
break;
}
/* Send discovery SVDMs last */
if (pd[port].data_role == PD_ROLE_DFP &&
(pd[port].flags & PD_FLAGS_CHECK_IDENTITY)) {
#ifndef CONFIG_USB_PD_SIMPLE_DFP
pd_send_vdm(port, USB_SID_PD,
CMD_DISCOVER_IDENT, NULL, 0);
#endif
pd[port].flags &= ~PD_FLAGS_CHECK_IDENTITY;
break;
}
if (!(pd[port].flags & PD_FLAGS_PING_ENABLED))
break;
/* Verify that the sink is alive */
res = send_control(port, PD_CTRL_PING);
if (res >= 0)
break;
/* Ping dropped. Try soft reset. */
set_state(port, PD_STATE_SOFT_RESET);
timeout = 10 * MSEC_US;
break;
case PD_STATE_SRC_GET_SINK_CAP:
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
PD_STATE_SRC_READY);
break;
case PD_STATE_DR_SWAP:
if (pd[port].last_state != pd[port].task_state) {
res = send_control(port, PD_CTRL_DR_SWAP);
if (res < 0) {
timeout = 10*MSEC_US;
/*
* If failed to get goodCRC, send
* soft reset, otherwise ignore
* failure.
*/
set_state(port, res == -1 ?
PD_STATE_SOFT_RESET :
READY_RETURN_STATE(port));
break;
}
/* Wait for accept or reject */
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
READY_RETURN_STATE(port));
}
break;
#ifdef CONFIG_USB_PD_DUAL_ROLE
case PD_STATE_SRC_SWAP_INIT:
if (pd[port].last_state != pd[port].task_state) {
res = send_control(port, PD_CTRL_PR_SWAP);
if (res < 0) {
timeout = 10*MSEC_US;
/*
* If failed to get goodCRC, send
* soft reset, otherwise ignore
* failure.
*/
set_state(port, res == -1 ?
PD_STATE_SOFT_RESET :
PD_STATE_SRC_READY);
break;
}
/* Wait for accept or reject */
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
PD_STATE_SRC_READY);
}
break;
case PD_STATE_SRC_SWAP_SNK_DISABLE:
/* Give time for sink to stop drawing current */
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port,
get_time().val +
PD_T_SINK_TRANSITION,
PD_STATE_SRC_SWAP_SRC_DISABLE);
break;
case PD_STATE_SRC_SWAP_SRC_DISABLE:
/* Turn power off */
if (pd[port].last_state != pd[port].task_state) {
pd_power_supply_reset(port);
set_state_timeout(port,
get_time().val +
PD_POWER_SUPPLY_TURN_OFF_DELAY,
PD_STATE_SRC_SWAP_STANDBY);
}
break;
case PD_STATE_SRC_SWAP_STANDBY:
/* Send PS_RDY to let sink know our power is off */
if (pd[port].last_state != pd[port].task_state) {
/* Send PS_RDY */
res = send_control(port, PD_CTRL_PS_RDY);
if (res < 0) {
timeout = 10*MSEC_US;
set_state(port,
PD_STATE_SRC_DISCONNECTED);
break;
}
/* Switch to Rd and swap roles to sink */
tcpm_set_cc(port, TYPEC_CC_RD);
pd[port].power_role = PD_ROLE_SINK;
/* Wait for PS_RDY from new source */
set_state_timeout(port,
get_time().val +
PD_T_PS_SOURCE_ON,
PD_STATE_SNK_DISCONNECTED);
}
break;
case PD_STATE_SUSPENDED: {
#ifndef CONFIG_USB_PD_TCPC
int rstatus;
#endif
CPRINTS("TCPC p%d suspended!", port);
pd[port].req_suspend_state = 0;
#ifdef CONFIG_USB_PD_TCPC
pd_rx_disable_monitoring(port);
pd_hw_release(port);
pd_power_supply_reset(port);
#else
rstatus = tcpm_release(port);
if (rstatus != 0 && rstatus != EC_ERROR_UNIMPLEMENTED)
CPRINTS("TCPC p%d release failed!", port);
#endif
/* Wait for resume */
// getting rid of task stuff
//while (pd[port].task_state == PD_STATE_SUSPENDED)
// task_wait_event(-1);
#ifdef CONFIG_USB_PD_TCPC
pd_hw_init(port, PD_ROLE_DEFAULT(port));
CPRINTS("TCPC p%d resumed!", port);
#else
if (rstatus != EC_ERROR_UNIMPLEMENTED &&
pd_restart_tcpc(port) != 0) {
/* stay in PD_STATE_SUSPENDED */
CPRINTS("TCPC p%d restart failed!", port);
break;
}
set_state(port, PD_DEFAULT_STATE(port));
CPRINTS("TCPC p%d resumed!", port);
#endif
break;
}
case PD_STATE_SNK_DISCONNECTED:
#ifdef CONFIG_USB_PD_LOW_POWER
timeout = drp_state != PD_DRP_TOGGLE_ON ? SECOND_US
: 10*MSEC_US;
#else
timeout = 10*MSEC_US;
#endif
tcpm_get_cc(port, &cc1, &cc2);
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
/*
* Attempt TCPC auto DRP toggle if it is
* not already auto toggling and not try.src
*/
if (auto_toggle_supported &&
!(pd[port].flags & PD_FLAGS_TCPC_DRP_TOGGLE) &&
!(pd[port].flags & PD_FLAGS_TRY_SRC) &&
(cc1 == TYPEC_CC_VOLT_OPEN &&
cc2 == TYPEC_CC_VOLT_OPEN)) {
set_state(port, PD_STATE_DRP_AUTO_TOGGLE);
timeout = 2*MSEC_US;
break;
}
#endif
/* Source connection monitoring */
if (cc1 != TYPEC_CC_VOLT_OPEN ||
cc2 != TYPEC_CC_VOLT_OPEN) {
pd[port].cc_state = PD_CC_NONE;
hard_reset_count = 0;
new_cc_state = PD_CC_NONE;
pd[port].cc_debounce = get_time().val +
PD_T_CC_DEBOUNCE;
set_state(port,
PD_STATE_SNK_DISCONNECTED_DEBOUNCE);
timeout = 10*MSEC_US;
break;
}
/*
* If Try.SRC is active and failed to detect a SNK,
* then it transitions to TryWait.SNK. Need to prevent
* normal dual role toggle until tDRPTryWait timer
* expires.
*/
if (pd[port].flags & PD_FLAGS_TRY_SRC) {
if (get_time().val > pd[port].try_src_marker)
pd[port].flags &= ~PD_FLAGS_TRY_SRC;
break;
}
/* If no source detected, check for role toggle. */
if (drp_state == PD_DRP_TOGGLE_ON &&
get_time().val >= next_role_swap) {
/* Swap roles to source */
pd[port].power_role = PD_ROLE_SOURCE;
set_state(port, PD_STATE_SRC_DISCONNECTED);
tcpm_set_cc(port, TYPEC_CC_RP);
next_role_swap = get_time().val + PD_T_DRP_SRC;
/* Swap states quickly */
timeout = 2*MSEC_US;
}
break;
case PD_STATE_SNK_DISCONNECTED_DEBOUNCE:
tcpm_get_cc(port, &cc1, &cc2);
if (cc_is_rp(cc1) && cc_is_rp(cc2)) {
/* Debug accessory */
new_cc_state = PD_CC_DEBUG_ACC;
} else if (cc_is_rp(cc1) || cc_is_rp(cc2)) {
new_cc_state = PD_CC_DFP_ATTACHED;
} else {
/* No connection any more */
set_state(port, PD_STATE_SNK_DISCONNECTED);
timeout = 5*MSEC_US;
break;
}
timeout = 20*MSEC_US;
/* Debounce the cc state */
if (new_cc_state != pd[port].cc_state) {
pd[port].cc_debounce = get_time().val +
PD_T_CC_DEBOUNCE;
pd[port].cc_state = new_cc_state;
break;
}
/* Wait for CC debounce and VBUS present */
if (get_time().val < pd[port].cc_debounce ||
!pd_is_vbus_present(port))
break;
if (pd_try_src_enable &&
!(pd[port].flags & PD_FLAGS_TRY_SRC)) {
/*
* If TRY_SRC is enabled, but not active,
* then force attempt to connect as source.
*/
pd[port].try_src_marker = get_time().val
+ PD_T_TRY_SRC;
/* Swap roles to source */
pd[port].power_role = PD_ROLE_SOURCE;
tcpm_set_cc(port, TYPEC_CC_RP);
timeout = 2*MSEC_US;
set_state(port, PD_STATE_SRC_DISCONNECTED);
/* Set flag after the state change */
pd[port].flags |= PD_FLAGS_TRY_SRC;
break;
}
/* We are attached */
pd[port].polarity = get_snk_polarity(cc1, cc2);
tcpm_set_polarity(port, pd[port].polarity);
/* reset message ID on connection */
pd[port].msg_id = 0;
/* initial data role for sink is UFP */
pd_set_data_role(port, PD_ROLE_UFP);
#if defined(CONFIG_CHARGE_MANAGER)
typec_curr = get_typec_current_limit(pd[port].polarity,
cc1, cc2);
//typec_set_input_current_limit(
// port, typec_curr, TYPE_C_VOLTAGE);
#endif
/* If PD comm is enabled, enable TCPC RX */
if (pd_comm_is_enabled(port))
tcpm_set_rx_enable(port, 1);
/* DFP is attached */
if (new_cc_state == PD_CC_DFP_ATTACHED ||
new_cc_state == PD_CC_DEBUG_ACC) {
pd[port].flags |= PD_FLAGS_CHECK_PR_ROLE |
PD_FLAGS_CHECK_DR_ROLE |
PD_FLAGS_CHECK_IDENTITY;
if (new_cc_state == PD_CC_DEBUG_ACC)
pd[port].flags |=
PD_FLAGS_TS_DTS_PARTNER;
send_control(port, PD_CTRL_GET_SOURCE_CAP);
set_state(port, PD_STATE_SNK_DISCOVERY);
timeout = 10*MSEC_US;
//hook_call_deferred(
// &pd_usb_billboard_deferred_data,
// PD_T_AME);
}
break;
case PD_STATE_SNK_HARD_RESET_RECOVER:
if (pd[port].last_state != pd[port].task_state)
pd[port].flags |= PD_FLAGS_CHECK_IDENTITY;
#ifdef CONFIG_USB_PD_VBUS_DETECT_NONE
/*
* Can't measure vbus state so this is the maximum
* recovery time for the source.
*/
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port, get_time().val +
PD_T_SAFE_0V +
PD_T_SRC_RECOVER_MAX +
PD_T_SRC_TURN_ON,
PD_STATE_SNK_DISCONNECTED);
#else
/* Wait for VBUS to go low and then high*/
if (pd[port].last_state != pd[port].task_state) {
snk_hard_reset_vbus_off = 0;
set_state_timeout(port,
get_time().val +
PD_T_SAFE_0V,
hard_reset_count <
PD_HARD_RESET_COUNT ?
PD_STATE_HARD_RESET_SEND :
PD_STATE_SNK_DISCOVERY);
}
if (!pd_is_vbus_present(port) &&
!snk_hard_reset_vbus_off) {
/* VBUS has gone low, reset timeout */
snk_hard_reset_vbus_off = 1;
set_state_timeout(port,
get_time().val +
PD_T_SRC_RECOVER_MAX +
PD_T_SRC_TURN_ON,
PD_STATE_SNK_DISCONNECTED);
}
if (pd_is_vbus_present(port) &&
snk_hard_reset_vbus_off) {
#ifdef CONFIG_USB_PD_TCPM_TCPCI
/*
* After transmitting hard reset, TCPM writes
* to RECEIVE_MESSAGE register to enable
* PD message passing.
*/
if (pd_comm_is_enabled(port))
tcpm_set_rx_enable(port, 1);
#endif /* CONFIG_USB_PD_TCPM_TCPCI */
/* VBUS went high again */
set_state(port, PD_STATE_SNK_DISCOVERY);
timeout = 10*MSEC_US;
}
/*
* Don't need to set timeout because VBUS changing
* will trigger an interrupt and wake us up.
*/
#endif
break;
case PD_STATE_SNK_DISCOVERY:
/* Wait for source cap expired only if we are enabled */
if ((pd[port].last_state != pd[port].task_state)
&& pd_comm_is_enabled(port)) {
/*
* If VBUS has never been low, and we timeout
* waiting for source cap, try a soft reset
* first, in case we were already in a stable
* contract before this boot.
*/
if (pd[port].flags & PD_FLAGS_VBUS_NEVER_LOW)
set_state_timeout(port,
get_time().val +
PD_T_SINK_WAIT_CAP,
PD_STATE_SOFT_RESET);
/*
* If we haven't passed hard reset counter,
* start SinkWaitCapTimer, otherwise start
* NoResponseTimer.
*/
else if (hard_reset_count < PD_HARD_RESET_COUNT)
set_state_timeout(port,
get_time().val +
PD_T_SINK_WAIT_CAP,
PD_STATE_HARD_RESET_SEND);
else if (pd[port].flags &
PD_FLAGS_PREVIOUS_PD_CONN)
/* ErrorRecovery */
set_state_timeout(port,
get_time().val +
PD_T_NO_RESPONSE,
PD_STATE_SNK_DISCONNECTED);
#if defined(CONFIG_CHARGE_MANAGER)
/*
* If we didn't come from disconnected, must
* have come from some path that did not set
* typec current limit. So, set to 0 so that
* we guarantee this is revised below.
*/
if (pd[port].last_state !=
PD_STATE_SNK_DISCONNECTED_DEBOUNCE)
typec_curr = 0;
#endif
}
#if defined(CONFIG_CHARGE_MANAGER)
timeout = PD_T_SINK_ADJ - PD_T_DEBOUNCE;
/* Check if CC pull-up has changed */
tcpm_get_cc(port, &cc1, &cc2);
if (typec_curr != get_typec_current_limit(
pd[port].polarity, cc1, cc2)) {
/* debounce signal by requiring two reads */
if (typec_curr_change) {
/* set new input current limit */
typec_curr = get_typec_current_limit(
pd[port].polarity, cc1, cc2);
//typec_set_input_current_limit(
// port, typec_curr, TYPE_C_VOLTAGE);
} else {
/* delay for debounce */
timeout = PD_T_DEBOUNCE;
}
typec_curr_change = !typec_curr_change;
} else {
typec_curr_change = 0;
}
#endif
break;
case PD_STATE_SNK_REQUESTED:
/* Wait for ACCEPT or REJECT */
if (pd[port].last_state != pd[port].task_state) {
hard_reset_count = 0;
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
PD_STATE_HARD_RESET_SEND);
}
break;
case PD_STATE_SNK_TRANSITION:
/* Wait for PS_RDY */
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port,
get_time().val +
PD_T_PS_TRANSITION,
PD_STATE_HARD_RESET_SEND);
break;
case PD_STATE_SNK_READY:
timeout = 20*MSEC_US;
/*
* Don't send any PD traffic if we woke up due to
* incoming packet or if VDO response pending to avoid
* collisions.
*/
if (incoming_packet ||
(pd[port].vdm_state == VDM_STATE_BUSY))
break;
/* Check for new power to request */
if (pd[port].new_power_request) {
if (pd_send_request_msg(port, 0) != EC_SUCCESS)
set_state(port, PD_STATE_SOFT_RESET);
break;
}
/* Check power role policy, which may trigger a swap */
if (pd[port].flags & PD_FLAGS_CHECK_PR_ROLE) {
pd_check_pr_role(port, PD_ROLE_SINK,
pd[port].flags);
pd[port].flags &= ~PD_FLAGS_CHECK_PR_ROLE;
break;
}
/* Check data role policy, which may trigger a swap */
if (pd[port].flags & PD_FLAGS_CHECK_DR_ROLE) {
pd_check_dr_role(port, pd[port].data_role,
pd[port].flags);
pd[port].flags &= ~PD_FLAGS_CHECK_DR_ROLE;
break;
}
/* If DFP, send discovery SVDMs */
if (pd[port].data_role == PD_ROLE_DFP &&
(pd[port].flags & PD_FLAGS_CHECK_IDENTITY)) {
pd_send_vdm(port, USB_SID_PD,
CMD_DISCOVER_IDENT, NULL, 0);
pd[port].flags &= ~PD_FLAGS_CHECK_IDENTITY;
break;
}
/* Sent all messages, don't need to wake very often */
timeout = 200*MSEC_US;
break;
case PD_STATE_SNK_SWAP_INIT:
if (pd[port].last_state != pd[port].task_state) {
res = send_control(port, PD_CTRL_PR_SWAP);
if (res < 0) {
timeout = 10*MSEC_US;
/*
* If failed to get goodCRC, send
* soft reset, otherwise ignore
* failure.
*/
set_state(port, res == -1 ?
PD_STATE_SOFT_RESET :
PD_STATE_SNK_READY);
break;
}
/* Wait for accept or reject */
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
PD_STATE_SNK_READY);
}
break;
case PD_STATE_SNK_SWAP_SNK_DISABLE:
/* Stop drawing power */
pd_set_input_current_limit(port, 0, 0);
#ifdef CONFIG_CHARGE_MANAGER
//typec_set_input_current_limit(port, 0, 0);
//charge_manager_set_ceil(port,
// CEIL_REQUESTOR_PD,
// CHARGE_CEIL_NONE);
#endif
set_state(port, PD_STATE_SNK_SWAP_SRC_DISABLE);
timeout = 10*MSEC_US;
break;
case PD_STATE_SNK_SWAP_SRC_DISABLE:
/* Wait for PS_RDY */
if (pd[port].last_state != pd[port].task_state)
set_state_timeout(port,
get_time().val +
PD_T_PS_SOURCE_OFF,
PD_STATE_HARD_RESET_SEND);
break;
case PD_STATE_SNK_SWAP_STANDBY:
if (pd[port].last_state != pd[port].task_state) {
/* Switch to Rp and enable power supply */
tcpm_set_cc(port, TYPEC_CC_RP);
if (pd_set_power_supply_ready(port)) {
/* Restore Rd */
tcpm_set_cc(port, TYPEC_CC_RD);
timeout = 10*MSEC_US;
set_state(port,
PD_STATE_SNK_DISCONNECTED);
break;
}
/* Wait for power supply to turn on */
set_state_timeout(
port,
get_time().val +
PD_POWER_SUPPLY_TURN_ON_DELAY,
PD_STATE_SNK_SWAP_COMPLETE);
}
break;
case PD_STATE_SNK_SWAP_COMPLETE:
/* Send PS_RDY and change to source role */
res = send_control(port, PD_CTRL_PS_RDY);
if (res < 0) {
/* Restore Rd */
tcpm_set_cc(port, TYPEC_CC_RD);
pd_power_supply_reset(port);
timeout = 10 * MSEC_US;
set_state(port, PD_STATE_SNK_DISCONNECTED);
break;
}
/* Don't send GET_SINK_CAP on swap */
snk_cap_count = PD_SNK_CAP_RETRIES+1;
caps_count = 0;
pd[port].msg_id = 0;
pd[port].power_role = PD_ROLE_SOURCE;
pd_update_roles(port);
set_state(port, PD_STATE_SRC_DISCOVERY);
timeout = 10*MSEC_US;
break;
#ifdef CONFIG_USBC_VCONN_SWAP
case PD_STATE_VCONN_SWAP_SEND:
if (pd[port].last_state != pd[port].task_state) {
res = send_control(port, PD_CTRL_VCONN_SWAP);
if (res < 0) {
timeout = 10*MSEC_US;
/*
* If failed to get goodCRC, send
* soft reset, otherwise ignore
* failure.
*/
set_state(port, res == -1 ?
PD_STATE_SOFT_RESET :
READY_RETURN_STATE(port));
break;
}
/* Wait for accept or reject */
set_state_timeout(port,
get_time().val +
PD_T_SENDER_RESPONSE,
READY_RETURN_STATE(port));
}
break;
case PD_STATE_VCONN_SWAP_INIT:
if (pd[port].last_state != pd[port].task_state) {
if (!(pd[port].flags & PD_FLAGS_VCONN_ON)) {
/* Turn VCONN on and wait for it */
tcpm_set_vconn(port, 1);
set_state_timeout(port,
get_time().val + PD_VCONN_SWAP_DELAY,
PD_STATE_VCONN_SWAP_READY);
} else {
set_state_timeout(port,
get_time().val + PD_T_VCONN_SOURCE_ON,
READY_RETURN_STATE(port));
}
}
break;
case PD_STATE_VCONN_SWAP_READY:
if (pd[port].last_state != pd[port].task_state) {
if (!(pd[port].flags & PD_FLAGS_VCONN_ON)) {
/* VCONN is now on, send PS_RDY */
pd[port].flags |= PD_FLAGS_VCONN_ON;
res = send_control(port,
PD_CTRL_PS_RDY);
if (res == -1) {
timeout = 10*MSEC_US;
/*
* If failed to get goodCRC,
* send soft reset
*/
set_state(port,
PD_STATE_SOFT_RESET);
break;
}
set_state(port,
READY_RETURN_STATE(port));
} else {
/* Turn VCONN off and wait for it */
tcpm_set_vconn(port, 0);
pd[port].flags &= ~PD_FLAGS_VCONN_ON;
set_state_timeout(port,
get_time().val + PD_VCONN_SWAP_DELAY,
READY_RETURN_STATE(port));
}
}
break;
#endif /* CONFIG_USBC_VCONN_SWAP */
#endif /* CONFIG_USB_PD_DUAL_ROLE */
case PD_STATE_SOFT_RESET:
if (pd[port].last_state != pd[port].task_state) {
/* Message ID of soft reset is always 0 */
pd[port].msg_id = 0;
res = send_control(port, PD_CTRL_SOFT_RESET);
/* if soft reset failed, try hard reset. */
if (res < 0) {
set_state(port,
PD_STATE_HARD_RESET_SEND);
timeout = 5*MSEC_US;
break;
}
set_state_timeout(
port,
get_time().val + PD_T_SENDER_RESPONSE,
PD_STATE_HARD_RESET_SEND);
}
break;
case PD_STATE_HARD_RESET_SEND:
hard_reset_count++;
if (pd[port].last_state != pd[port].task_state)
hard_reset_sent = 0;
#ifdef CONFIG_CHARGE_MANAGER
if (pd[port].last_state == PD_STATE_SNK_DISCOVERY ||
(pd[port].last_state == PD_STATE_SOFT_RESET &&
(pd[port].flags & PD_FLAGS_VBUS_NEVER_LOW))) {
pd[port].flags &= ~PD_FLAGS_VBUS_NEVER_LOW;
/*
* If discovery timed out, assume that we
* have a dedicated charger attached. This
* may not be a correct assumption according
* to the specification, but it generally
* works in practice and the harmful
* effects of a wrong assumption here
* are minimal.
*/
//charge_manager_update_dualrole(port,
// CAP_DEDICATED);
}
#endif
/* try sending hard reset until it succeeds */
if (!hard_reset_sent) {
if (pd_transmit(port, TCPC_TX_HARD_RESET,
0, NULL) < 0) {
timeout = 10*MSEC_US;
break;
}
/* successfully sent hard reset */
hard_reset_sent = 1;
/*
* If we are source, delay before cutting power
* to allow sink time to get hard reset.
*/
if (pd[port].power_role == PD_ROLE_SOURCE) {
set_state_timeout(port,
get_time().val + PD_T_PS_HARD_RESET,
PD_STATE_HARD_RESET_EXECUTE);
} else {
set_state(port,
PD_STATE_HARD_RESET_EXECUTE);
timeout = 10*MSEC_US;
}
}
break;
case PD_STATE_HARD_RESET_EXECUTE:
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* If hard reset while in the last stages of power
* swap, then we need to restore our CC resistor.
*/
if (pd[port].last_state == PD_STATE_SNK_SWAP_STANDBY)
tcpm_set_cc(port, TYPEC_CC_RD);
#endif
/* reset our own state machine */
pd_execute_hard_reset(port);
timeout = 10*MSEC_US;
break;
#ifdef CONFIG_COMMON_RUNTIME
case PD_STATE_BIST_RX:
send_bist_cmd(port);
/* Delay at least enough for partner to finish BIST */
timeout = PD_T_BIST_RECEIVE + 20*MSEC_US;
/* Set to appropriate port disconnected state */
set_state(port, DUAL_ROLE_IF_ELSE(port,
PD_STATE_SNK_DISCONNECTED,
PD_STATE_SRC_DISCONNECTED));
break;
case PD_STATE_BIST_TX:
pd_transmit(port, TCPC_TX_BIST_MODE_2, 0, NULL);
/* Delay at least enough to finish sending BIST */
timeout = PD_T_BIST_TRANSMIT + 20*MSEC_US;
/* Set to appropriate port disconnected state */
set_state(port, DUAL_ROLE_IF_ELSE(port,
PD_STATE_SNK_DISCONNECTED,
PD_STATE_SRC_DISCONNECTED));
break;
#endif
#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
case PD_STATE_DRP_AUTO_TOGGLE:
{
enum pd_states next_state;
assert(auto_toggle_supported);
/* Check for connection */
tcpm_get_cc(port, &cc1, &cc2);
/* Set to appropriate port state */
if (cc1 == TYPEC_CC_VOLT_OPEN &&
cc2 == TYPEC_CC_VOLT_OPEN)
/* nothing connected, keep toggling*/
next_state = PD_STATE_DRP_AUTO_TOGGLE;
else if ((cc_is_rp(cc1) || cc_is_rp(cc2)) &&
drp_state != PD_DRP_FORCE_SOURCE)
/* SNK allowed unless ForceSRC */
next_state = PD_STATE_SNK_DISCONNECTED;
else if (((cc1 == TYPEC_CC_VOLT_RD ||
cc2 == TYPEC_CC_VOLT_RD) ||
(cc1 == TYPEC_CC_VOLT_RA &&
cc2 == TYPEC_CC_VOLT_RA)) &&
(drp_state != PD_DRP_TOGGLE_OFF &&
drp_state != PD_DRP_FORCE_SINK))
/* SRC allowed unless ForceSNK or Toggle Off */
next_state = PD_STATE_SRC_DISCONNECTED;
else
/* Anything else, keep toggling */
next_state = PD_STATE_DRP_AUTO_TOGGLE;
if (next_state != PD_STATE_DRP_AUTO_TOGGLE) {
tcpm_set_drp_toggle(port, 0);
#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
CPRINTS("TCPC p%d Exit Low Power Mode", port);
#endif
}
if (next_state == PD_STATE_SNK_DISCONNECTED) {
tcpm_set_cc(port, TYPEC_CC_RD);
pd[port].power_role = PD_ROLE_SINK;
timeout = 2*MSEC_US;
} else if (next_state == PD_STATE_SRC_DISCONNECTED) {
tcpm_set_cc(port, TYPEC_CC_RP);
pd[port].power_role = PD_ROLE_SOURCE;
timeout = 2*MSEC_US;
} else {
tcpm_set_drp_toggle(port, 1);
pd[port].flags |= PD_FLAGS_TCPC_DRP_TOGGLE;
timeout = -1;
#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
CPRINTS("TCPC p%d Low Power Mode", port);
#endif
}
set_state(port, next_state);
break;
}
#endif
default:
break;
}
pd[port].last_state = this_state;
/*
* Check for state timeout, and if not check if need to adjust
* timeout value to wake up on the next state timeout.
*/
now = get_time();
if (pd[port].timeout) {
if (now.val >= pd[port].timeout) {
set_state(port, pd[port].timeout_state);
/* On a state timeout, run next state soon */
timeout = timeout < 10*MSEC_US ? timeout : 10*MSEC_US;
} else if (pd[port].timeout - now.val < timeout) {
timeout = pd[port].timeout - now.val;
}
}
/* Check for disconnection if we're connected */
if (!pd_is_connected(port))
return;
#ifdef CONFIG_USB_PD_DUAL_ROLE
if (pd_is_power_swapping(port))
return;
#endif
if (pd[port].power_role == PD_ROLE_SOURCE) {
/* Source: detect disconnect by monitoring CC */
tcpm_get_cc(port, &cc1, &cc2);
if (pd[port].polarity)
cc1 = cc2;
if (cc1 == TYPEC_CC_VOLT_OPEN) {
set_state(port, PD_STATE_SRC_DISCONNECTED);
/* Debouncing */
timeout = 10*MSEC_US;
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* If Try.SRC is configured, then ATTACHED_SRC
* needs to transition to TryWait.SNK. Change
* power role to SNK and start state timer.
*/
if (pd_try_src_enable) {
/* Swap roles to sink */
pd[port].power_role = PD_ROLE_SINK;
tcpm_set_cc(port, TYPEC_CC_RD);
/* Set timer for TryWait.SNK state */
pd[port].try_src_marker = get_time().val
+ PD_T_TRY_WAIT;
/* Advance to TryWait.SNK state */
set_state(port,
PD_STATE_SNK_DISCONNECTED);
/* Mark state as TryWait.SNK */
pd[port].flags |= PD_FLAGS_TRY_SRC;
}
#endif
}
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
/*
* Sink disconnect if VBUS is low and we are not recovering
* a hard reset.
*/
if (pd[port].power_role == PD_ROLE_SINK &&
!pd_is_vbus_present(port) &&
pd[port].task_state != PD_STATE_SNK_HARD_RESET_RECOVER &&
pd[port].task_state != PD_STATE_HARD_RESET_EXECUTE) {
/* Sink: detect disconnect by monitoring VBUS */
set_state(port, PD_STATE_SNK_DISCONNECTED);
/* set timeout small to reconnect fast */
timeout = 5*MSEC_US;
}
#endif /* CONFIG_USB_PD_DUAL_ROLE */
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
static void dual_role_on(void)
{
int i;
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
#ifdef CONFIG_CHARGE_MANAGER
//if (charge_manager_get_active_charge_port() != i)
#endif
pd[i].flags |= PD_FLAGS_CHECK_PR_ROLE |
PD_FLAGS_CHECK_DR_ROLE;
pd[i].flags |= PD_FLAGS_CHECK_IDENTITY;
}
pd_set_dual_role(PD_DRP_TOGGLE_ON);
CPRINTS("chipset -> S0");
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, dual_role_on, HOOK_PRIO_DEFAULT);
static void dual_role_off(void)
{
pd_set_dual_role(PD_DRP_TOGGLE_OFF);
CPRINTS("chipset -> S3");
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, dual_role_off, HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, dual_role_off, HOOK_PRIO_DEFAULT);
static void dual_role_force_sink(void)
{
pd_set_dual_role(PD_DRP_FORCE_SINK);
CPRINTS("chipset -> S5");
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, dual_role_force_sink, HOOK_PRIO_DEFAULT);
#endif /* CONFIG_USB_PD_DUAL_ROLE */
#ifdef CONFIG_COMMON_RUNTIME
/*
* (enable=1) request pd_task transition to the suspended state. hang
* around for a while until we observe the state change. this can
* take a while (like 300ms) on startup when pd_task is sleeping in
* tcpci_tcpm_init.
*
* (enable=0) force pd_task out of the suspended state and into the
* port's default state.
*/
void pd_set_suspend(int port, int enable)
{
int tries = 300;
if (enable) {
pd[port].req_suspend_state = 1;
do {
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
if (pd[port].task_state == PD_STATE_SUSPENDED)
break;
msleep(1);
} while (--tries != 0);
if (!tries)
CPRINTS("TCPC p%d set_suspend failed!", port);
} else {
if (pd[port].task_state != PD_STATE_SUSPENDED)
CPRINTS("TCPC p%d suspend disable request "
"while not suspended!", port);
set_state(port, PD_DEFAULT_STATE(port));
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
}
int pd_is_port_enabled(int port)
{
switch (pd[port].task_state) {
case PD_STATE_DISABLED:
case PD_STATE_SUSPENDED:
return 0;
default:
return 1;
}
}
#if defined(CONFIG_CMD_PD) && defined(CONFIG_CMD_PD_FLASH)
static int hex8tou32(char *str, uint32_t *val)
{
char *ptr = str;
uint32_t tmp = 0;
while (*ptr) {
char c = *ptr++;
if (c >= '0' && c <= '9')
tmp = (tmp << 4) + (c - '0');
else if (c >= 'A' && c <= 'F')
tmp = (tmp << 4) + (c - 'A' + 10);
else if (c >= 'a' && c <= 'f')
tmp = (tmp << 4) + (c - 'a' + 10);
else
return EC_ERROR_INVAL;
}
if (ptr != str + 8)
return EC_ERROR_INVAL;
*val = tmp;
return EC_SUCCESS;
}
static int remote_flashing(int argc, char **argv)
{
int port, cnt, cmd;
uint32_t data[VDO_MAX_SIZE-1];
char *e;
static int flash_offset[CONFIG_USB_PD_PORT_COUNT];
if (argc < 4 || argc > (VDO_MAX_SIZE + 4 - 1))
return EC_ERROR_PARAM_COUNT;
port = strtoi(argv[1], &e, 10);
if (*e || port >= CONFIG_USB_PD_PORT_COUNT)
return EC_ERROR_PARAM2;
cnt = 0;
if (!strcasecmp(argv[3], "erase")) {
cmd = VDO_CMD_FLASH_ERASE;
flash_offset[port] = 0;
ccprintf("ERASE ...");
} else if (!strcasecmp(argv[3], "reboot")) {
cmd = VDO_CMD_REBOOT;
ccprintf("REBOOT ...");
} else if (!strcasecmp(argv[3], "signature")) {
cmd = VDO_CMD_ERASE_SIG;
ccprintf("ERASE SIG ...");
} else if (!strcasecmp(argv[3], "info")) {
cmd = VDO_CMD_READ_INFO;
ccprintf("INFO...");
} else if (!strcasecmp(argv[3], "version")) {
cmd = VDO_CMD_VERSION;
ccprintf("VERSION...");
} else {
int i;
argc -= 3;
for (i = 0; i < argc; i++)
if (hex8tou32(argv[i+3], data + i))
return EC_ERROR_INVAL;
cmd = VDO_CMD_FLASH_WRITE;
cnt = argc;
ccprintf("WRITE %d @%04x ...", argc * 4,
flash_offset[port]);
flash_offset[port] += argc * 4;
}
pd_send_vdm(port, USB_VID_GOOGLE, cmd, data, cnt);
/* Wait until VDM is done */
while (pd[port].vdm_state > 0)
task_wait_event(100*MSEC_US);
ccprintf("DONE %d\n", pd[port].vdm_state);
return EC_SUCCESS;
}
#endif /* defined(CONFIG_CMD_PD) && defined(CONFIG_CMD_PD_FLASH) */
int pd_fetch_acc_log_entry(int port)
{
timestamp_t timeout;
/* Cannot send a VDM now, the host should retry */
if (pd[port].vdm_state > 0)
return pd[port].vdm_state == VDM_STATE_BUSY ?
EC_RES_BUSY : EC_RES_UNAVAILABLE;
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_GET_LOG, NULL, 0);
timeout.val = get_time().val + 75*MSEC_US;
/* Wait until VDM is done */
while ((pd[port].vdm_state > 0) &&
(get_time().val < timeout.val))
task_wait_event(10*MSEC_US);
if (pd[port].vdm_state > 0)
return EC_RES_TIMEOUT;
else if (pd[port].vdm_state < 0)
return EC_RES_ERROR;
return EC_RES_SUCCESS;
}
#ifdef CONFIG_USB_PD_DUAL_ROLE
void pd_request_source_voltage(int port, int mv)
{
pd_set_max_voltage(mv);
if (pd[port].task_state == PD_STATE_SNK_READY ||
pd[port].task_state == PD_STATE_SNK_TRANSITION) {
/* Set flag to send new power request in pd_task */
pd[port].new_power_request = 1;
} else {
pd[port].power_role = PD_ROLE_SINK;
tcpm_set_cc(port, TYPEC_CC_RD);
set_state(port, PD_STATE_SNK_DISCONNECTED);
}
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
void pd_set_external_voltage_limit(int port, int mv)
{
pd_set_max_voltage(mv);
if (pd[port].task_state == PD_STATE_SNK_READY ||
pd[port].task_state == PD_STATE_SNK_TRANSITION) {
/* Set flag to send new power request in pd_task */
pd[port].new_power_request = 1;
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
}
void pd_update_contract(int port)
{
if ((pd[port].task_state >= PD_STATE_SRC_NEGOCIATE) &&
(pd[port].task_state <= PD_STATE_SRC_GET_SINK_CAP)) {
pd[port].flags |= PD_FLAGS_UPDATE_SRC_CAPS;
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
}
}
#endif /* CONFIG_USB_PD_DUAL_ROLE */
static int command_pd(int argc, char **argv)
{
int port;
char *e;
if (argc < 2)
return EC_ERROR_PARAM_COUNT;
#if defined(CONFIG_CMD_PD) && defined(CONFIG_USB_PD_DUAL_ROLE)
/* command: pd <subcmd> <args> */
if (!strcasecmp(argv[1], "dualrole")) {
if (argc < 3) {
ccprintf("dual-role toggling: ");
switch (drp_state) {
case PD_DRP_TOGGLE_ON:
ccprintf("on\n");
break;
case PD_DRP_TOGGLE_OFF:
ccprintf("off\n");
break;
case PD_DRP_FREEZE:
ccprintf("freeze\n");
break;
case PD_DRP_FORCE_SINK:
ccprintf("force sink\n");
break;
case PD_DRP_FORCE_SOURCE:
ccprintf("force source\n");
break;
}
} else {
if (!strcasecmp(argv[2], "on"))
pd_set_dual_role(PD_DRP_TOGGLE_ON);
else if (!strcasecmp(argv[2], "off"))
pd_set_dual_role(PD_DRP_TOGGLE_OFF);
else if (!strcasecmp(argv[2], "freeze"))
pd_set_dual_role(PD_DRP_FREEZE);
else if (!strcasecmp(argv[2], "sink"))
pd_set_dual_role(PD_DRP_FORCE_SINK);
else if (!strcasecmp(argv[2], "source"))
pd_set_dual_role(PD_DRP_FORCE_SOURCE);
else
return EC_ERROR_PARAM3;
}
return EC_SUCCESS;
} else
#endif
if (!strcasecmp(argv[1], "dump")) {
#ifndef CONFIG_USB_PD_DEBUG_LEVEL
int level;
if (argc >= 3) {
level = strtoi(argv[2], &e, 10);
if (*e)
return EC_ERROR_PARAM2;
debug_level = level;
} else
#endif
ccprintf("dump level: %d\n", debug_level);
return EC_SUCCESS;
}
#ifdef CONFIG_CMD_PD
#ifdef CONFIG_CMD_PD_DEV_DUMP_INFO
else if (!strncasecmp(argv[1], "rwhashtable", 3)) {
int i;
struct ec_params_usb_pd_rw_hash_entry *p;
for (i = 0; i < RW_HASH_ENTRIES; i++) {
p = &rw_hash_table[i];
pd_dev_dump_info(p->dev_id, p->dev_rw_hash);
}
return EC_SUCCESS;
}
#endif /* CONFIG_CMD_PD_DEV_DUMP_INFO */
#ifdef CONFIG_USB_PD_TRY_SRC
else if (!strncasecmp(argv[1], "trysrc", 6)) {
int enable;
if (argc < 2) {
return EC_ERROR_PARAM_COUNT;
} else if (argc >= 3) {
enable = strtoi(argv[2], &e, 10);
if (*e)
return EC_ERROR_PARAM3;
pd_try_src_enable = enable ? 1 : 0;
}
ccprintf("Try.SRC %s\n", pd_try_src_enable ? "on" : "off");
return EC_SUCCESS;
}
#endif
#endif
/* command: pd <port> <subcmd> [args] */
port = strtoi(argv[1], &e, 10);
if (argc < 3)
return EC_ERROR_PARAM_COUNT;
if (*e || port >= CONFIG_USB_PD_PORT_COUNT)
return EC_ERROR_PARAM2;
#if defined(CONFIG_CMD_PD) && defined(CONFIG_USB_PD_DUAL_ROLE)
if (!strcasecmp(argv[2], "tx")) {
set_state(port, PD_STATE_SNK_DISCOVERY);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strcasecmp(argv[2], "bist_rx")) {
set_state(port, PD_STATE_BIST_RX);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strcasecmp(argv[2], "bist_tx")) {
if (*e)
return EC_ERROR_PARAM3;
set_state(port, PD_STATE_BIST_TX);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strcasecmp(argv[2], "charger")) {
pd[port].power_role = PD_ROLE_SOURCE;
tcpm_set_cc(port, TYPEC_CC_RP);
set_state(port, PD_STATE_SRC_DISCONNECTED);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strncasecmp(argv[2], "dev", 3)) {
int max_volt;
if (argc >= 4)
max_volt = strtoi(argv[3], &e, 10) * 1000;
else
max_volt = pd_get_max_voltage();
pd_request_source_voltage(port, max_volt);
ccprintf("max req: %dmV\n", max_volt);
} else if (!strcasecmp(argv[2], "disable")) {
pd_comm_enable(port, 0);
ccprintf("Port C%d disable\n", port);
return EC_SUCCESS;
} else if (!strcasecmp(argv[2], "enable")) {
pd_comm_enable(port, 1);
ccprintf("Port C%d enabled\n", port);
return EC_SUCCESS;
} else if (!strncasecmp(argv[2], "hard", 4)) {
set_state(port, PD_STATE_HARD_RESET_SEND);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strncasecmp(argv[2], "info", 4)) {
int i;
ccprintf("Hash ");
for (i = 0; i < PD_RW_HASH_SIZE / 4; i++)
ccprintf("%08x ", pd[port].dev_rw_hash[i]);
ccprintf("\nImage %s\n", system_image_copy_t_to_string(
pd[port].current_image));
} else if (!strncasecmp(argv[2], "soft", 4)) {
set_state(port, PD_STATE_SOFT_RESET);
// getting rid of task stuff
//task_wake(PD_PORT_TO_TASK_ID(port));
} else if (!strncasecmp(argv[2], "swap", 4)) {
if (argc < 4)
return EC_ERROR_PARAM_COUNT;
if (!strncasecmp(argv[3], "power", 5))
pd_request_power_swap(port);
else if (!strncasecmp(argv[3], "data", 4))
pd_request_data_swap(port);
#ifdef CONFIG_USBC_VCONN_SWAP
else if (!strncasecmp(argv[3], "vconn", 5))
pd_request_vconn_swap(port);
#endif
else
return EC_ERROR_PARAM3;
} else if (!strncasecmp(argv[2], "ping", 4)) {
int enable;
if (argc > 3) {
enable = strtoi(argv[3], &e, 10);
if (*e)
return EC_ERROR_PARAM3;
pd_ping_enable(port, enable);
}
ccprintf("Pings %s\n",
(pd[port].flags & PD_FLAGS_PING_ENABLED) ?
"on" : "off");
} else if (!strncasecmp(argv[2], "vdm", 3)) {
if (argc < 4)
return EC_ERROR_PARAM_COUNT;
if (!strncasecmp(argv[3], "ping", 4)) {
uint32_t enable;
if (argc < 5)
return EC_ERROR_PARAM_COUNT;
enable = strtoi(argv[4], &e, 10);
if (*e)
return EC_ERROR_PARAM4;
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_PING_ENABLE,
&enable, 1);
} else if (!strncasecmp(argv[3], "curr", 4)) {
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_CURRENT,
NULL, 0);
} else if (!strncasecmp(argv[3], "vers", 4)) {
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_VERSION,
NULL, 0);
} else {
return EC_ERROR_PARAM_COUNT;
}
#if defined(CONFIG_CMD_PD) && defined(CONFIG_CMD_PD_FLASH)
} else if (!strncasecmp(argv[2], "flash", 4)) {
return remote_flashing(argc, argv);
#endif
} else
#endif
if (!strncasecmp(argv[2], "state", 5)) {
ccprintf("Port C%d CC%d, %s - Role: %s-%s%s "
"State: %s, Flags: 0x%04x\n",
port, pd[port].polarity + 1,
pd_comm_is_enabled(port) ? "Ena" : "Dis",
pd[port].power_role == PD_ROLE_SOURCE ? "SRC" : "SNK",
pd[port].data_role == PD_ROLE_DFP ? "DFP" : "UFP",
(pd[port].flags & PD_FLAGS_VCONN_ON) ? "-VC" : "",
pd_state_names[pd[port].task_state],
pd[port].flags);
} else {
return EC_ERROR_PARAM1;
}
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(pd, command_pd,
"dualrole|dump|rwhashtable"
"|trysrc [0|1]\n\t<port> "
"[tx|bist_rx|bist_tx|charger|clock|dev|disable|enable"
"|soft|hash|hard|ping|state|swap [power|data]|"
"vdm [ping | curr | vers]]",
"USB PD");
#ifdef HAS_TASK_HOSTCMD
static int hc_pd_ports(struct host_cmd_handler_args *args)
{
struct ec_response_usb_pd_ports *r = args->response;
r->num_ports = CONFIG_USB_PD_PORT_COUNT;
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_PORTS,
hc_pd_ports,
EC_VER_MASK(0));
static const enum pd_dual_role_states dual_role_map[USB_PD_CTRL_ROLE_COUNT] = {
[USB_PD_CTRL_ROLE_TOGGLE_ON] = PD_DRP_TOGGLE_ON,
[USB_PD_CTRL_ROLE_TOGGLE_OFF] = PD_DRP_TOGGLE_OFF,
[USB_PD_CTRL_ROLE_FORCE_SINK] = PD_DRP_FORCE_SINK,
[USB_PD_CTRL_ROLE_FORCE_SOURCE] = PD_DRP_FORCE_SOURCE,
[USB_PD_CTRL_ROLE_FREEZE] = PD_DRP_FREEZE,
};
#ifdef CONFIG_USBC_SS_MUX
static const enum typec_mux typec_mux_map[USB_PD_CTRL_MUX_COUNT] = {
[USB_PD_CTRL_MUX_NONE] = TYPEC_MUX_NONE,
[USB_PD_CTRL_MUX_USB] = TYPEC_MUX_USB,
[USB_PD_CTRL_MUX_AUTO] = TYPEC_MUX_DP,
[USB_PD_CTRL_MUX_DP] = TYPEC_MUX_DP,
[USB_PD_CTRL_MUX_DOCK] = TYPEC_MUX_DOCK,
};
#endif
static int hc_usb_pd_control(struct host_cmd_handler_args *args)
{
const struct ec_params_usb_pd_control *p = args->params;
struct ec_response_usb_pd_control_v1 *r_v1 = args->response;
struct ec_response_usb_pd_control *r = args->response;
if (p->port >= CONFIG_USB_PD_PORT_COUNT)
return EC_RES_INVALID_PARAM;
if (p->role >= USB_PD_CTRL_ROLE_COUNT ||
p->mux >= USB_PD_CTRL_MUX_COUNT)
return EC_RES_INVALID_PARAM;
if (p->role != USB_PD_CTRL_ROLE_NO_CHANGE)
pd_set_dual_role(dual_role_map[p->role]);
#ifdef CONFIG_USBC_SS_MUX
if (p->mux != USB_PD_CTRL_MUX_NO_CHANGE)
usb_mux_set(p->port, typec_mux_map[p->mux],
typec_mux_map[p->mux] == TYPEC_MUX_NONE ?
USB_SWITCH_DISCONNECT :
USB_SWITCH_CONNECT,
pd_get_polarity(p->port));
#endif /* CONFIG_USBC_SS_MUX */
if (p->swap == USB_PD_CTRL_SWAP_DATA)
pd_request_data_swap(p->port);
#ifdef CONFIG_USB_PD_DUAL_ROLE
else if (p->swap == USB_PD_CTRL_SWAP_POWER)
pd_request_power_swap(p->port);
#ifdef CONFIG_USBC_VCONN_SWAP
else if (p->swap == USB_PD_CTRL_SWAP_VCONN)
pd_request_vconn_swap(p->port);
#endif
#endif
if (args->version == 0) {
r->enabled = pd_comm_is_enabled(p->port);
r->role = pd[p->port].power_role;
r->polarity = pd[p->port].polarity;
r->state = pd[p->port].task_state;
args->response_size = sizeof(*r);
} else {
r_v1->enabled =
(pd_comm_is_enabled(p->port) ?
PD_CTRL_RESP_ENABLED_COMMS : 0) |
(pd_is_connected(p->port) ?
PD_CTRL_RESP_ENABLED_CONNECTED : 0) |
((pd[p->port].flags & PD_FLAGS_PREVIOUS_PD_CONN) ?
PD_CTRL_RESP_ENABLED_PD_CAPABLE : 0);
r_v1->role =
(pd[p->port].power_role ? PD_CTRL_RESP_ROLE_POWER : 0) |
(pd[p->port].data_role ? PD_CTRL_RESP_ROLE_DATA : 0) |
((pd[p->port].flags & PD_FLAGS_VCONN_ON) ?
PD_CTRL_RESP_ROLE_VCONN : 0) |
((pd[p->port].flags & PD_FLAGS_PARTNER_DR_POWER) ?
PD_CTRL_RESP_ROLE_DR_POWER : 0) |
((pd[p->port].flags & PD_FLAGS_PARTNER_DR_DATA) ?
PD_CTRL_RESP_ROLE_DR_DATA : 0) |
((pd[p->port].flags & PD_FLAGS_PARTNER_USB_COMM) ?
PD_CTRL_RESP_ROLE_USB_COMM : 0) |
((pd[p->port].flags & PD_FLAGS_PARTNER_EXTPOWER) ?
PD_CTRL_RESP_ROLE_EXT_POWERED : 0);
r_v1->polarity = pd[p->port].polarity;
strzcpy(r_v1->state,
pd_state_names[pd[p->port].task_state],
sizeof(r_v1->state));
args->response_size = sizeof(*r_v1);
}
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_CONTROL,
hc_usb_pd_control,
EC_VER_MASK(0) | EC_VER_MASK(1));
static int hc_remote_flash(struct host_cmd_handler_args *args)
{
const struct ec_params_usb_pd_fw_update *p = args->params;
int port = p->port;
const uint32_t *data = &(p->size) + 1;
int i, size, rv = EC_RES_SUCCESS;
timestamp_t timeout;
if (port >= CONFIG_USB_PD_PORT_COUNT)
return EC_RES_INVALID_PARAM;
if (p->size + sizeof(*p) > args->params_size)
return EC_RES_INVALID_PARAM;
#if defined(CONFIG_BATTERY_PRESENT_CUSTOM) || \
defined(CONFIG_BATTERY_PRESENT_GPIO)
/*
* Do not allow PD firmware update if no battery and this port
* is sinking power, because we will lose power.
*/
if (battery_is_present() != BP_YES &&
charge_manager_get_active_charge_port() == port)
return EC_RES_UNAVAILABLE;
#endif
/*
* Busy still with a VDM that host likely generated. 1 deep VDM queue
* so just return for retry logic on host side to deal with.
*/
if (pd[port].vdm_state > 0)
return EC_RES_BUSY;
switch (p->cmd) {
case USB_PD_FW_REBOOT:
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_REBOOT, NULL, 0);
/*
* Return immediately to free pending i2c bus. Host needs to
* manage this delay.
*/
return EC_RES_SUCCESS;
case USB_PD_FW_FLASH_ERASE:
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_FLASH_ERASE, NULL, 0);
/*
* Return immediately. Host needs to manage delays here which
* can be as long as 1.2 seconds on 64KB RW flash.
*/
return EC_RES_SUCCESS;
case USB_PD_FW_ERASE_SIG:
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_ERASE_SIG, NULL, 0);
timeout.val = get_time().val + 500*MSEC_US;
break;
case USB_PD_FW_FLASH_WRITE:
/* Data size must be a multiple of 4 */
if (!p->size || p->size % 4)
return EC_RES_INVALID_PARAM;
size = p->size / 4;
for (i = 0; i < size; i += VDO_MAX_SIZE - 1) {
pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_FLASH_WRITE,
data + i, MIN(size - i, VDO_MAX_SIZE - 1));
timeout.val = get_time().val + 500*MSEC_US;
/* Wait until VDM is done */
while ((pd[port].vdm_state > 0) &&
(get_time().val < timeout.val))
task_wait_event(10*MSEC_US);
if (pd[port].vdm_state > 0)
return EC_RES_TIMEOUT;
}
return EC_RES_SUCCESS;
default:
return EC_RES_INVALID_PARAM;
break;
}
/* Wait until VDM is done or timeout */
while ((pd[port].vdm_state > 0) && (get_time().val < timeout.val))
task_wait_event(50*MSEC_US);
if ((pd[port].vdm_state > 0) ||
(pd[port].vdm_state == VDM_STATE_ERR_TMOUT))
rv = EC_RES_TIMEOUT;
else if (pd[port].vdm_state < 0)
rv = EC_RES_ERROR;
return rv;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_FW_UPDATE,
hc_remote_flash,
EC_VER_MASK(0));
static int hc_remote_rw_hash_entry(struct host_cmd_handler_args *args)
{
int i, idx = 0, found = 0;
const struct ec_params_usb_pd_rw_hash_entry *p = args->params;
static int rw_hash_next_idx;
if (!p->dev_id)
return EC_RES_INVALID_PARAM;
for (i = 0; i < RW_HASH_ENTRIES; i++) {
if (p->dev_id == rw_hash_table[i].dev_id) {
idx = i;
found = 1;
break;
}
}
if (!found) {
idx = rw_hash_next_idx;
rw_hash_next_idx = rw_hash_next_idx + 1;
if (rw_hash_next_idx == RW_HASH_ENTRIES)
rw_hash_next_idx = 0;
}
memcpy(&rw_hash_table[idx], p, sizeof(*p));
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_RW_HASH_ENTRY,
hc_remote_rw_hash_entry,
EC_VER_MASK(0));
static int hc_remote_pd_dev_info(struct host_cmd_handler_args *args)
{
const uint8_t *port = args->params;
struct ec_params_usb_pd_rw_hash_entry *r = args->response;
if (*port >= CONFIG_USB_PD_PORT_COUNT)
return EC_RES_INVALID_PARAM;
r->dev_id = pd[*port].dev_id;
if (r->dev_id) {
memcpy(r->dev_rw_hash, pd[*port].dev_rw_hash,
PD_RW_HASH_SIZE);
}
r->current_image = pd[*port].current_image;
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_DEV_INFO,
hc_remote_pd_dev_info,
EC_VER_MASK(0));
#ifndef CONFIG_USB_PD_TCPC
#ifdef CONFIG_EC_CMD_PD_CHIP_INFO
static int hc_remote_pd_chip_info(struct host_cmd_handler_args *args)
{
const struct ec_params_pd_chip_info *p = args->params;
struct ec_response_pd_chip_info *r = args->response, *info;
if (p->port >= CONFIG_USB_PD_PORT_COUNT)
return EC_RES_INVALID_PARAM;
if (tcpm_get_chip_info(p->port, p->renew, &info))
return EC_RES_ERROR;
memcpy(r, info, sizeof(*r));
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_PD_CHIP_INFO,
hc_remote_pd_chip_info,
EC_VER_MASK(0));
#endif
#endif
#ifdef CONFIG_USB_PD_ALT_MODE_DFP
static int hc_remote_pd_set_amode(struct host_cmd_handler_args *args)
{
const struct ec_params_usb_pd_set_mode_request *p = args->params;
if ((p->port >= CONFIG_USB_PD_PORT_COUNT) || (!p->svid) || (!p->opos))
return EC_RES_INVALID_PARAM;
switch (p->cmd) {
case PD_EXIT_MODE:
if (pd_dfp_exit_mode(p->port, p->svid, p->opos))
pd_send_vdm(p->port, p->svid,
CMD_EXIT_MODE | VDO_OPOS(p->opos), NULL, 0);
else {
CPRINTF("Failed exit mode\n");
return EC_RES_ERROR;
}
break;
case PD_ENTER_MODE:
if (pd_dfp_enter_mode(p->port, p->svid, p->opos))
pd_send_vdm(p->port, p->svid, CMD_ENTER_MODE |
VDO_OPOS(p->opos), NULL, 0);
break;
default:
return EC_RES_INVALID_PARAM;
}
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_USB_PD_SET_AMODE,
hc_remote_pd_set_amode,
EC_VER_MASK(0));
#endif /* CONFIG_USB_PD_ALT_MODE_DFP */
#endif /* HAS_TASK_HOSTCMD */
#ifdef CONFIG_CMD_PD_CONTROL
static int pd_control(struct host_cmd_handler_args *args)
{
static int pd_control_disabled[CONFIG_USB_PD_PORT_COUNT];
const struct ec_params_pd_control *cmd = args->params;
int enable = 0;
if (cmd->chip >= CONFIG_USB_PD_PORT_COUNT)
return EC_RES_INVALID_PARAM;
/* Always allow disable command */
if (cmd->subcmd == PD_CONTROL_DISABLE) {
pd_control_disabled[cmd->chip] = 1;
return EC_RES_SUCCESS;
}
if (pd_control_disabled[cmd->chip])
return EC_RES_ACCESS_DENIED;
if (cmd->subcmd == PD_SUSPEND) {
enable = 0;
} else if (cmd->subcmd == PD_RESUME) {
enable = 1;
} else if (cmd->subcmd == PD_RESET) {
#ifdef HAS_TASK_PDCMD
board_reset_pd_mcu();
#else
return EC_RES_INVALID_COMMAND;
#endif
} else if (cmd->subcmd == PD_CHIP_ON && board_set_tcpc_power_mode) {
board_set_tcpc_power_mode(cmd->chip, 1);
return EC_RES_SUCCESS;
} else {
return EC_RES_INVALID_COMMAND;
}
pd_comm_enable(cmd->chip, enable);
pd_set_suspend(cmd->chip, !enable);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_PD_CONTROL, pd_control, EC_VER_MASK(0));
#endif /* CONFIG_CMD_PD_CONTROL */
#endif /* CONFIG_COMMON_RUNTIME */
#if defined(CONFIG_USB_PD_ALT_MODE) && !defined(CONFIG_USB_PD_ALT_MODE_DFP)
void pd_send_hpd(int port, enum hpd_event hpd)
{
uint32_t data[1];
int opos = pd_alt_mode(port, USB_SID_DISPLAYPORT);
if (!opos)
return;
data[0] = VDO_DP_STATUS((hpd == hpd_irq), /* IRQ_HPD */
(hpd != hpd_low), /* HPD_HI|LOW */
0, /* request exit DP */
0, /* request exit USB */
0, /* MF pref */
1, /* enabled */
0, /* power low */
0x2);
pd_send_vdm(port, USB_SID_DISPLAYPORT,
VDO_OPOS(opos) | CMD_ATTENTION, data, 1);
/* Wait until VDM is done. */
//while (pd[0].vdm_state > 0)
// task_wait_event(USB_PD_RX_TMOUT_US * (PD_RETRY_COUNT + 1));
}
bool pd_is_vdm_busy(int port)
{
return ((pd[port].vdm_state != 0) && (pd[port].vdm_state != -1));
}
#endif
Reference in a new issue View git blame Copy permalink