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/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "mock/tcpci_i2c_mock.h"
#include "task.h"
#include "tcpm/tcpci.h"
#include "test_util.h"
#include "timer.h"
#include "usb_tcpmv2_compliance.h"
#define PD_T_CHUNK_RECEIVER_REQUEST_MAX (15 * MSEC)
#define PD_T_CHUNK_SENDER_RSP_MAX (30 * MSEC)
#define PD_T_CHUNKING_NOT_SUPPORTED_MIN (40 * MSEC)
#define PD_T_CHUNKING_NOT_SUPPORTED_MAX (50 * MSEC)
static void setup_chunk_msg(int chunk, char *data)
{
int i;
int base_msg_byte = chunk * PD_MAX_EXTENDED_MSG_CHUNK_LEN;
*(uint16_t *)data = PD_EXT_HEADER(chunk, 0, PD_MAX_EXTENDED_MSG_LEN);
for (i = 0; i < PD_MAX_EXTENDED_MSG_CHUNK_LEN; ++i) {
int val = (i + base_msg_byte) % 256;
data[i + sizeof(uint16_t)] = val;
}
}
/*****************************************************************************
* TD.PD.SRC3.E32 ChunkSenderResponseTimer Timeout
*
* Description:
* As Consumer (UFP), the Tester verifies that the UUT recovers correctly
* after the Tester stops sending chunked messages in the middle.
*/
int test_td_pd_src3_e32(void)
{
int chunk = 0;
int msg_len;
uint32_t header;
char data[PD_MAX_EXTENDED_MSG_CHUNK_LEN + sizeof(uint16_t)];
int found_index;
struct possible_tx possible[2];
uint64_t start_time;
/*
* a) Run PROC.PD.E1 Bring-up according to the UUT role. The Tester
* sets Unchunked Extended Messages Supported set to 0 in Request
* message during this process.
* b) The Tester waits until it can start an AMS (Run PROC.PD.E3)
*/
TEST_EQ(tcpci_startup(), EC_SUCCESS, "%d");
TEST_EQ(proc_pd_e1(PD_ROLE_DFP, INITIAL_AND_ALREADY_ATTACHED),
EC_SUCCESS, "%d");
TEST_EQ(proc_pd_e3(), EC_SUCCESS, "%d");
/*
* ...and sends the first chunk of a chunked extended message
* to the UUT, with Data Size set to 260 and Message Type set
* to 11111b. Bytes 0 to 259 of data block contain
* incrementing values (mod 256) starting at 0x00.
*/
setup_chunk_msg(0, data);
partner_send_msg(TCPCI_MSG_SOP, 0x1F, 7, 1, (uint32_t *)data);
start_time = get_time().val;
/*
* c) If a message is not received within tChunkingNotSupported
* max (50ms), this test fails. The delay is messaged from the
* time the last bit of the EOP of the chunk has been
* transmitted until the first bit of the response Message
* Preamble has been received.
*/
possible[0].tx_type = TCPCI_MSG_SOP;
possible[0].ctrl_msg = PD_CTRL_NOT_SUPPORTED;
possible[0].data_msg = 0;
possible[1].tx_type = TCPCI_MSG_SOP;
possible[1].ctrl_msg = 0;
possible[1].data_msg = 0x1F;
TEST_EQ(verify_tcpci_possible_tx(possible, 2, &found_index, data,
sizeof(data), &msg_len,
PD_T_CHUNKING_NOT_SUPPORTED_MAX),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
/*
* d) If the received message is Not_Supported, the Tester verifies
* the message is received after tChunkingNotSupported min (40ms)
* and stops here.
*/
if (found_index == 0) {
TEST_ASSERT((get_time().val - start_time) >=
PD_T_CHUNKING_NOT_SUPPORTED_MIN);
return EC_SUCCESS;
}
TEST_EQ(found_index, 1, "%d");
/*
* e) If the message is not received within
* tChunkReceiverRequest max (15ms), the test fails.
*/
TEST_ASSERT((get_time().val - start_time) <=
PD_T_CHUNK_RECEIVER_REQUEST_MAX);
while (chunk < 4) {
int next_chunk;
/*
* f) Upon receipt of the message from the UUT to request for
* the next chunk, the Tester sends the requested chunk to the
* UUT.
*/
header = *(uint16_t *)&data[3];
next_chunk = PD_EXT_HEADER_CHUNK_NUM(header);
TEST_EQ(chunk + 1, next_chunk, "%d");
chunk = next_chunk;
setup_chunk_msg(chunk, data);
partner_send_msg(TCPCI_MSG_SOP, 0x1F, 7, 1, (uint32_t *)data);
TEST_EQ(verify_tcpci_tx_with_data(
TCPCI_MSG_SOP, 0x1F, data, sizeof(data),
&msg_len, PD_T_CHUNK_RECEIVER_REQUEST_MAX),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
/*
* g) Repeat f) until the Tester has finished sending 4 chunks
* and intentionally does not send the 5th chunk to the UUT.
*/
}
/*
* h) The Tester waits for tChunkSenderResponse max + 5 ms, waits until
* it can start an AMS (Run PROC.PD.E3) and sends the first chunk to
* the UUT.
*/
task_wait_event(PD_T_CHUNK_SENDER_RSP_MAX + (5 * MSEC));
setup_chunk_msg(0, data);
partner_send_msg(TCPCI_MSG_SOP, 0x1F, 7, 1, (uint32_t *)data);
/*
* i) If a message is not received within tChunkReceiverRequest max,
* the test fails.
*/
TEST_EQ(verify_tcpci_tx_with_data(TCPCI_MSG_SOP, 0x1F, data,
sizeof(data), &msg_len,
PD_T_CHUNK_RECEIVER_REQUEST_MAX),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
/*
* j) Upon receipt of the message, the Tester verifies the following:
* 1. For Message Header
* Extended = 1
* Number of Data Objects = 1
* Port Power Role field = 1b (Source)
* Port Data Role field = 1b (DFP)
* Specification Revision = 10b (Rev 3.0)
* Message Type = 11111b
*/
TEST_EQ(msg_len, 7, "%d");
header = *(uint32_t *)&data[1];
TEST_EQ(PD_HEADER_EXT(header), 1, "%d");
TEST_EQ(PD_HEADER_CNT(header), 1, "%d");
TEST_EQ(PD_HEADER_PROLE(header), 1, "%d");
TEST_EQ(PD_HEADER_DROLE(header), 1, "%d");
TEST_EQ(PD_HEADER_REV(header), PD_REV30, "%d");
TEST_EQ(PD_HEADER_TYPE(header), 0x1F, "%d");
/*
* 2. For Extended Message Header
* Chunked = 1
* Chunk Number = 1
* Request Chunk = 1
* Bit 9 = 0 (Reserved)
* Data Size = 0
*/
header = *(uint16_t *)&data[3];
TEST_EQ(PD_EXT_HEADER_CHUNKED(header), 1, "%d");
TEST_EQ(PD_EXT_HEADER_CHUNK_NUM(header), 1, "%d");
TEST_EQ(PD_EXT_HEADER_REQ_CHUNK(header), 1, "%d");
TEST_EQ(header & BIT(9), 0, "%d");
TEST_EQ(PD_EXT_HEADER_DATA_SIZE(header), 0, "%d");
/*
* 3. The total number of data bytes is consistent with the
* Number of Data Objects field
*/
header = *(uint32_t *)&data[1];
TEST_EQ(msg_len - 3, PD_HEADER_CNT(header) * 4, "%d");
/*
* 4. The last 2 bytes of the Data Object are 0
*/
TEST_EQ(data[5], 0, "%d");
TEST_EQ(data[6], 0, "%d");
return EC_SUCCESS;
}
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