1 files changed, 0 insertions, 355 deletions

diff --git a/zephyr/emul/emul_charger.c b/zephyr/emul/emul_charger.c
deleted file mode 100644
index d584ab882b..0000000000
--- a/zephyr/emul/emul_charger.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/* Copyright 2021 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <logging/log.h>
-LOG_MODULE_REGISTER(charger_emul, CONFIG_TCPCI_EMUL_LOG_LEVEL);
-
-#include <zephyr.h>
-
-#include "common.h"
-#include "emul/emul_charger.h"
-#include "emul/emul_tcpci.h"
-#include "usb_pd.h"
-
-/** Structure of message used by USB-C charger emulator */
-struct charger_emul_msg {
-	/** Reserved for k_fifo_* usage */
-	void *fifo_reserved;
-	/** TCPCI emulator message */
-	struct tcpci_emul_msg msg;
-	/** Time when message should be sent if message is delayed */
-	uint64_t time;
-};
-
-/**
- * @brief Allocate message
- *
- * @param size Size of message buffer
- *
- * @return Pointer to new message on success
- * @return NULL on error
- */
-static struct charger_emul_msg *charger_emul_alloc_msg(size_t size)
-{
-	struct charger_emul_msg *new_msg;
-
-	new_msg = k_malloc(sizeof(struct charger_emul_msg));
-	if (new_msg == NULL) {
-		return NULL;
-	}
-
-	new_msg->msg.buf = k_malloc(size);
-	if (new_msg->msg.buf == NULL) {
-		k_free(new_msg);
-		return NULL;
-	}
-
-	/* TCPCI message size count include type byte */
-	new_msg->msg.cnt = size + 1;
-
-	return new_msg;
-}
-
-/**
- * @brief Free message's memory
- *
- * @param msg Pointer to message
- */
-static void charger_emul_free_msg(struct charger_emul_msg *msg)
-{
-	k_free(msg->msg.buf);
-	k_free(msg);
-}
-
-/**
- * @brief Set header of the message
- *
- * @param data Pointer to USB-C charger emulator
- * @param msg Pointer to message
- * @param type Type of message
- * @param cnt Number of data objects
- */
-static void charger_emul_set_header(struct charger_emul_data *data,
-				    struct charger_emul_msg *msg,
-				    int type, int cnt)
-{
-	/* Header msg id has only 3 bits and wraps around after 8 messages */
-	uint16_t msg_id = data->msg_id & 0x7;
-	uint16_t header = PD_HEADER(type, PD_ROLE_SOURCE, PD_ROLE_UFP, msg_id,
-				    cnt, PD_REV20, 0 /* ext */);
-	data->msg_id++;
-
-	msg->msg.buf[1] = (header >> 8) & 0xff;
-	msg->msg.buf[0] = header & 0xff;
-}
-
-/**
- * @brief Work function which sends delayed messages
- *
- * @param work Pointer to work structure
- */
-static void charger_emul_delayed_send(struct k_work *work)
-{
-	struct k_work_delayable *kwd = k_work_delayable_from_work(work);
-	struct charger_emul_data *data = CONTAINER_OF(kwd,
-						      struct charger_emul_data,
-						      delayed_send);
-	struct charger_emul_msg *msg;
-	uint64_t now;
-	int ec;
-
-	while (!k_fifo_is_empty(&data->to_send)) {
-		/*
-		 * It is safe to not check msg == NULL, because this thread is
-		 * the only one consumer
-		 */
-		msg = k_fifo_peek_head(&data->to_send);
-
-		now = k_uptime_get();
-		if (now >= msg->time) {
-			k_fifo_get(&data->to_send, K_FOREVER);
-			ec = tcpci_emul_add_rx_msg(data->tcpci_emul, &msg->msg,
-						   true /* send alert */);
-			if (ec) {
-				charger_emul_free_msg(msg);
-			}
-		} else {
-			k_work_reschedule(kwd, K_MSEC(msg->time - now));
-			break;
-		}
-	}
-}
-
-/**
- * @brief Send message to TCPCI emulator or schedule message
- *
- * @param data Pointer to USB-C charger emulator
- * @param msg Pointer to message to send
- * @param delay Optional delay
- *
- * @return 0 on success
- * @return -EINVAL on TCPCI emulator add RX message error
- */
-static int charger_emul_send_msg(struct charger_emul_data *data,
-				 struct charger_emul_msg *msg, uint64_t delay)
-{
-	uint64_t now;
-	int ec;
-
-	if (delay == 0) {
-		ec = tcpci_emul_add_rx_msg(data->tcpci_emul, &msg->msg, true);
-		if (ec) {
-			charger_emul_free_msg(msg);
-		}
-
-		return ec;
-	}
-
-	now = k_uptime_get();
-	msg->time = now + delay;
-	k_fifo_put(&data->to_send, msg);
-	/*
-	 * This will change execution time of delayed_send only if it is not
-	 * already scheduled
-	 */
-	k_work_schedule(&data->delayed_send, K_MSEC(delay));
-
-	return 0;
-}
-
-/**
- * @brief Send capability message which for now is hardcoded
- *
- * @param data Pointer to USB-C charger emulator
- * @param delay Optional delay
- *
- * @return 0 on success
- * @return -ENOMEM when there is no free memory for message
- * @return -EINVAL on TCPCI emulator add RX message error
- */
-static int charger_emul_send_capability_msg(struct charger_emul_data *data,
-					    uint64_t delay)
-{
-	struct charger_emul_msg *msg;
-
-	msg = charger_emul_alloc_msg(6);
-	if (msg == NULL) {
-		return -ENOMEM;
-	}
-
-	/* Capability with 5v@3A */
-	charger_emul_set_header(data, msg, PD_DATA_SOURCE_CAP, 1);
-
-	/* Fixed supply (type of supply) 0xc0 */
-	msg->msg.buf[5] = 0x00;
-	/* Dual role capable 0x20 */
-	msg->msg.buf[5] |= 0x00;
-	/* Unconstrained power 0x08 */
-	msg->msg.buf[5] |= 0x08;
-
-	/* 5V on bits 19-10 */
-	msg->msg.buf[4] = 0x1;
-	msg->msg.buf[3] = 0x90;
-	/* 3A on bits 9-0 */
-	msg->msg.buf[3] |= 0x1;
-	msg->msg.buf[2] = 0x2c;
-
-	/* Fill tcpci message structure */
-	msg->msg.type = TCPCI_MSG_SOP;
-
-	return charger_emul_send_msg(data, msg, delay);
-}
-
-/**
- * @brief Send control message with optional delay
- *
- * @param data Pointer to USB-C charger emulator
- * @param type Type of message
- * @param delay Optional delay
- *
- * @return 0 on success
- * @return -ENOMEM when there is no free memory for message
- * @return -EINVAL on TCPCI emulator add RX message error
- */
-static int charger_emul_send_control_msg(struct charger_emul_data *data,
-					 enum pd_ctrl_msg_type type,
-					 uint64_t delay)
-{
-	struct charger_emul_msg *msg;
-
-	msg = charger_emul_alloc_msg(2);
-	if (msg == NULL) {
-		return -ENOMEM;
-	}
-
-	charger_emul_set_header(data, msg, type, 0);
-
-	/* Fill tcpci message structure */
-	msg->msg.type = TCPCI_MSG_SOP;
-
-	return charger_emul_send_msg(data, msg, delay);
-}
-
-/**
- * @brief Function called when TCPM wants to transmit message. Accept received
- *        message and generate response.
- *
- * @param emul Pointer to TCPCI emulator
- * @param ops Pointer to partner operations structure
- * @param tx_msg Pointer to TX message buffer
- * @param type Type of message
- * @param retry Count of retries
- */
-static void charger_emul_transmit_op(const struct emul *emul,
-				     const struct tcpci_emul_partner_ops *ops,
-				     const struct tcpci_emul_msg *tx_msg,
-				     enum tcpci_msg_type type,
-				     int retry)
-{
-	struct charger_emul_data *data = CONTAINER_OF(ops,
-						      struct charger_emul_data,
-						      ops);
-	uint16_t header;
-
-	/* Acknowledge that message was sent successfully */
-	tcpci_emul_partner_msg_status(emul, TCPCI_EMUL_TX_SUCCESS);
-
-	/* Handle only SOP messages */
-	if (type != TCPCI_MSG_SOP) {
-		return;
-	}
-
-	LOG_HEXDUMP_DBG(tx_msg->buf, tx_msg->cnt, "Charger received message");
-
-	header = (tx_msg->buf[1] << 8) | tx_msg->buf[0];
-
-	if (PD_HEADER_CNT(header)) {
-		/* Handle data message */
-		switch (PD_HEADER_TYPE(header)) {
-		case PD_DATA_REQUEST:
-			charger_emul_send_control_msg(data, PD_CTRL_ACCEPT, 0);
-			/* PS ready after 15 ms */
-			charger_emul_send_control_msg(data, PD_CTRL_PS_RDY, 15);
-			break;
-		case PD_DATA_VENDOR_DEF:
-			/* VDM (vendor defined message) - ignore */
-			break;
-		default:
-			charger_emul_send_control_msg(data, PD_CTRL_REJECT, 0);
-			break;
-		}
-	} else {
-		/* Handle control message */
-		switch (PD_HEADER_TYPE(header)) {
-		case PD_CTRL_GET_SOURCE_CAP:
-			charger_emul_send_capability_msg(data, 0);
-			break;
-		case PD_CTRL_GET_SINK_CAP:
-			charger_emul_send_control_msg(data, PD_CTRL_REJECT, 0);
-			break;
-		case PD_CTRL_DR_SWAP:
-			charger_emul_send_control_msg(data, PD_CTRL_REJECT, 0);
-			break;
-		case PD_CTRL_SOFT_RESET:
-			data->msg_id = 0;
-			charger_emul_send_control_msg(data, PD_CTRL_ACCEPT, 0);
-			/* Send capability after 15 ms to establish PD again */
-			charger_emul_send_capability_msg(data, 15);
-			break;
-		default:
-			charger_emul_send_control_msg(data, PD_CTRL_REJECT, 0);
-			break;
-		}
-	}
-}
-
-/**
- * @brief Function called when TCPM consumes message. Free message that is no
- *        longer needed.
- *
- * @param emul Pointer to TCPCI emulator
- * @param ops Pointer to partner operations structure
- * @param rx_msg Message that was consumed by TCPM
- */
-static void charger_emul_rx_consumed_op(
-		const struct emul *emul,
-		const struct tcpci_emul_partner_ops *ops,
-		const struct tcpci_emul_msg *rx_msg)
-{
-	struct charger_emul_msg *msg = CONTAINER_OF(rx_msg,
-						    struct charger_emul_msg,
-						    msg);
-
-	charger_emul_free_msg(msg);
-}
-
-/** Check description in emul_charger.h */
-int charger_emul_connect_to_tcpci(struct charger_emul_data *data,
-				  const struct emul *tcpci_emul)
-{
-	int ec;
-
-	tcpci_emul_set_partner_ops(tcpci_emul, &data->ops);
-	ec = tcpci_emul_connect_partner(tcpci_emul, PD_ROLE_SOURCE,
-					TYPEC_CC_VOLT_RP_3_0,
-					TYPEC_CC_VOLT_OPEN, POLARITY_CC1);
-	if (ec) {
-		return ec;
-	}
-
-	data->tcpci_emul = tcpci_emul;
-
-	return charger_emul_send_capability_msg(data, 0);
-}
-
-/** Check description in emul_charger.h */
-void charger_emul_init(struct charger_emul_data *data)
-{
-	k_work_init_delayable(&data->delayed_send, charger_emul_delayed_send);
-	k_fifo_init(&data->to_send);
-
-	data->ops.transmit = charger_emul_transmit_op;
-	data->ops.rx_consumed = charger_emul_rx_consumed_op;
-}