OSCL-LXR linux-6.0.1/​drivers/​platform/​chrome/​cros_ec_proto_test.c	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Kunit tests for ChromeOS Embedded Controller protocol.
  */
 
 #include <kunit/test.h>
 
 #include <asm-generic/unaligned.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
 
 #include "cros_ec.h"
 #include "cros_kunit_util.h"
 
 #define BUFSIZE 512
 
 struct cros_ec_proto_test_priv {
     struct cros_ec_device ec_dev;
     u8 dout[BUFSIZE];
     u8 din[BUFSIZE];
     struct cros_ec_command *msg;
     u8 _msg[BUFSIZE];
 };
 
 static void cros_ec_proto_test_prepare_tx_legacy_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct cros_ec_command *msg = priv->msg;
     int ret, i;
     u8 csum;
 
     ec_dev->proto_version = 2;
 
     msg->command = EC_CMD_HELLO;
     msg->outsize = EC_PROTO2_MAX_PARAM_SIZE;
     msg->data[0] = 0xde;
     msg->data[1] = 0xad;
     msg->data[2] = 0xbe;
     msg->data[3] = 0xef;
 
     ret = cros_ec_prepare_tx(ec_dev, msg);
 
     KUNIT_EXPECT_EQ(test, ret, EC_MSG_TX_PROTO_BYTES + EC_PROTO2_MAX_PARAM_SIZE);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[0], EC_CMD_VERSION0);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[1], EC_CMD_HELLO);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[2], EC_PROTO2_MAX_PARAM_SIZE);
     KUNIT_EXPECT_EQ(test, EC_MSG_TX_HEADER_BYTES, 3);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 0], 0xde);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 1], 0xad);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 2], 0xbe);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 3], 0xef);
     for (i = 4; i < EC_PROTO2_MAX_PARAM_SIZE; ++i)
         KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + i], 0);
 
     csum = EC_CMD_VERSION0;
     csum += EC_CMD_HELLO;
     csum += EC_PROTO2_MAX_PARAM_SIZE;
     csum += 0xde;
     csum += 0xad;
     csum += 0xbe;
     csum += 0xef;
     KUNIT_EXPECT_EQ(test,
             ec_dev->dout[EC_MSG_TX_HEADER_BYTES + EC_PROTO2_MAX_PARAM_SIZE],
             csum);
 }
 
 static void cros_ec_proto_test_prepare_tx_legacy_bad_msg_outsize(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct cros_ec_command *msg = priv->msg;
     int ret;
 
     ec_dev->proto_version = 2;
 
     msg->outsize = EC_PROTO2_MAX_PARAM_SIZE + 1;
 
     ret = cros_ec_prepare_tx(ec_dev, msg);
     KUNIT_EXPECT_EQ(test, ret, -EINVAL);
 }
 
 static void cros_ec_proto_test_prepare_tx_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct cros_ec_command *msg = priv->msg;
     struct ec_host_request *request = (struct ec_host_request *)ec_dev->dout;
     int ret, i;
     u8 csum;
 
     msg->command = EC_CMD_HELLO;
     msg->outsize = 0x88;
     msg->data[0] = 0xde;
     msg->data[1] = 0xad;
     msg->data[2] = 0xbe;
     msg->data[3] = 0xef;
 
     ret = cros_ec_prepare_tx(ec_dev, msg);
 
     KUNIT_EXPECT_EQ(test, ret, sizeof(*request) + 0x88);
 
     KUNIT_EXPECT_EQ(test, request->struct_version, EC_HOST_REQUEST_VERSION);
     KUNIT_EXPECT_EQ(test, request->command, EC_CMD_HELLO);
     KUNIT_EXPECT_EQ(test, request->command_version, 0);
     KUNIT_EXPECT_EQ(test, request->data_len, 0x88);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 0], 0xde);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 1], 0xad);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 2], 0xbe);
     KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 3], 0xef);
     for (i = 4; i < 0x88; ++i)
         KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + i], 0);
 
     csum = EC_HOST_REQUEST_VERSION;
     csum += EC_CMD_HELLO;
     csum += 0x88;
     csum += 0xde;
     csum += 0xad;
     csum += 0xbe;
     csum += 0xef;
     KUNIT_EXPECT_EQ(test, request->checksum, (u8)-csum);
 }
 
 static void cros_ec_proto_test_prepare_tx_bad_msg_outsize(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct cros_ec_command *msg = priv->msg;
     int ret;
 
     msg->outsize = ec_dev->dout_size - sizeof(struct ec_host_request) + 1;
 
     ret = cros_ec_prepare_tx(ec_dev, msg);
     KUNIT_EXPECT_EQ(test, ret, -EINVAL);
 }
 
 static void cros_ec_proto_test_check_result(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct cros_ec_command *msg = priv->msg;
     int ret, i;
     static enum ec_status status[] = {
         EC_RES_SUCCESS,
         EC_RES_INVALID_COMMAND,
         EC_RES_ERROR,
         EC_RES_INVALID_PARAM,
         EC_RES_ACCESS_DENIED,
         EC_RES_INVALID_RESPONSE,
         EC_RES_INVALID_VERSION,
         EC_RES_INVALID_CHECKSUM,
         EC_RES_UNAVAILABLE,
         EC_RES_TIMEOUT,
         EC_RES_OVERFLOW,
         EC_RES_INVALID_HEADER,
         EC_RES_REQUEST_TRUNCATED,
         EC_RES_RESPONSE_TOO_BIG,
         EC_RES_BUS_ERROR,
         EC_RES_BUSY,
         EC_RES_INVALID_HEADER_VERSION,
         EC_RES_INVALID_HEADER_CRC,
         EC_RES_INVALID_DATA_CRC,
         EC_RES_DUP_UNAVAILABLE,
     };
 
     for (i = 0; i < ARRAY_SIZE(status); ++i) {
         msg->result = status[i];
         ret = cros_ec_check_result(ec_dev, msg);
         KUNIT_EXPECT_EQ(test, ret, 0);
     }
 
     msg->result = EC_RES_IN_PROGRESS;
     ret = cros_ec_check_result(ec_dev, msg);
     KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
 }
 
 static void cros_ec_proto_test_query_all_pretest(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
 
     /*
      * cros_ec_query_all() will free din and dout and allocate them again to fit the usage by
      * calling devm_kfree() and devm_kzalloc().  Set them to NULL as they aren't managed by
      * ec_dev->dev but allocated statically in struct cros_ec_proto_test_priv
      * (see cros_ec_proto_test_init()).
      */
     ec_dev->din = NULL;
     ec_dev->dout = NULL;
 }
 
 static void cros_ec_proto_test_query_all_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->protocol_versions = BIT(3) | BIT(2);
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbf;
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_response_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_cmd_versions *)mock->o_data;
         data->version_mask = BIT(6) | BIT(5);
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         struct ec_response_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_cmd_versions *)mock->o_data;
         data->version_mask = BIT(1);
     }
 
     /* For cros_ec_get_host_event_wake_mask(). */
     {
         struct ec_response_host_event_mask *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_host_event_mask *)mock->o_data;
         data->mask = 0xbeef;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->max_request, 0xbe - sizeof(struct ec_host_request));
         KUNIT_EXPECT_EQ(test, ec_dev->max_response, 0xef - sizeof(struct ec_host_response));
         KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 3);
         KUNIT_EXPECT_EQ(test, ec_dev->din_size, 0xef + EC_MAX_RESPONSE_OVERHEAD);
         KUNIT_EXPECT_EQ(test, ec_dev->dout_size, 0xbe + EC_MAX_REQUEST_OVERHEAD);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0xbf - sizeof(struct ec_host_request));
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_params_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_get_cmd_versions *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 
         KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 7);
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         struct ec_params_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_get_cmd_versions *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_HOST_SLEEP_EVENT);
 
         KUNIT_EXPECT_TRUE(test, ec_dev->host_sleep_v1);
     }
 
     /* For cros_ec_get_host_event_wake_mask(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->host_event_wake_mask, 0xbeef);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_pd_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->max_passthru = 0xbf;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_pd_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->max_passthru = 0xbf;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_normal_v3_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         struct ec_response_hello *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_hello *)mock->o_data;
         data->out_data = 0xa1b2c3d4;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         struct ec_params_hello *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_hello *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->in_data, 0xa0b0c0d0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 2);
         KUNIT_EXPECT_EQ(test, ec_dev->max_request, EC_PROTO2_MAX_PARAM_SIZE);
         KUNIT_EXPECT_EQ(test, ec_dev->max_response, EC_PROTO2_MAX_PARAM_SIZE);
         KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
         KUNIT_EXPECT_PTR_EQ(test, ec_dev->pkt_xfer, NULL);
         KUNIT_EXPECT_EQ(test, ec_dev->din_size, EC_PROTO2_MSG_BYTES);
         KUNIT_EXPECT_EQ(test, ec_dev->dout_size, EC_PROTO2_MSG_BYTES);
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_normal_v3_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         struct ec_response_hello *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_hello *)mock->o_data;
         data->out_data = 0xa1b2c3d4;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         struct ec_params_hello *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_hello *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->in_data, 0xa0b0c0d0);
 
         KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 2);
         KUNIT_EXPECT_EQ(test, ec_dev->max_request, EC_PROTO2_MAX_PARAM_SIZE);
         KUNIT_EXPECT_EQ(test, ec_dev->max_response, EC_PROTO2_MAX_PARAM_SIZE);
         KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
         KUNIT_EXPECT_PTR_EQ(test, ec_dev->pkt_xfer, NULL);
         KUNIT_EXPECT_EQ(test, ec_dev->din_size, EC_PROTO2_MSG_BYTES);
         KUNIT_EXPECT_EQ(test, ec_dev->dout_size, EC_PROTO2_MSG_BYTES);
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_xfer_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, -EIO, EC_RES_SUCCESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, -EIO);
     KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, -EOPNOTSUPP);
     KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_data_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         struct ec_response_hello *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_hello *)mock->o_data;
         data->out_data = 0xbeefbfbf;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, -EBADMSG);
     KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
     }
 }
 
 static void cros_ec_proto_test_query_all_legacy_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, -EPROTO);
     KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info_legacy(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
     }
 }
 
 static void cros_ec_proto_test_query_all_no_mkbp(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->mkbp_event_supported = 0xbf;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_response_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_cmd_versions *)mock->o_data;
         data->version_mask = 0;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_params_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_get_cmd_versions *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 
         KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_mkbp_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->mkbp_event_supported = 0xbf;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_params_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_get_cmd_versions *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 
         KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_mkbp_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->mkbp_event_supported = 0xbf;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_params_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_get_cmd_versions *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 
         KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_host_sleep(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->host_sleep_v1 = true;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         struct ec_response_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_cmd_versions *)mock->o_data;
         data->version_mask = 0;
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
 
         KUNIT_EXPECT_FALSE(test, ec_dev->host_sleep_v1);
     }
 }
 
 static void cros_ec_proto_test_query_all_no_host_sleep_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->host_sleep_v1 = true;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         struct ec_response_get_cmd_versions *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /* In order to pollute next cros_ec_get_host_command_version_mask(). */
         data = (struct ec_response_get_cmd_versions *)mock->o_data;
         data->version_mask = 0xbeef;
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
 
         KUNIT_EXPECT_FALSE(test, ec_dev->host_sleep_v1);
     }
 }
 
 static void cros_ec_proto_test_query_all_default_wake_mask_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->host_event_wake_mask = U32_MAX;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_event_wake_mask(). */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For cros_ec_get_host_event_wake_mask(). */
     {
         u32 mask;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         mask = ec_dev->host_event_wake_mask;
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS), 0);
     }
 }
 
 static void cros_ec_proto_test_query_all_default_wake_mask_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
 
     /* Set some garbage bytes. */
     ec_dev->host_event_wake_mask = U32_MAX;
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         struct ec_response_get_protocol_info *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         /*
          * Although it doesn't check the value, provides valid sizes so that
          * cros_ec_query_all() allocates din and dout correctly.
          */
         data = (struct ec_response_get_protocol_info *)mock->o_data;
         data->max_request_packet_size = 0xbe;
         data->max_response_packet_size = 0xef;
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For get_host_event_wake_mask(). */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     cros_ec_proto_test_query_all_pretest(test);
     ret = cros_ec_query_all(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     /* For cros_ec_get_proto_info() without passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_proto_info() with passthru. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command,
                 EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
                 EC_CMD_GET_PROTOCOL_INFO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_protocol_info));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     /* For cros_ec_get_host_command_version_mask() for MKBP. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For cros_ec_get_host_command_version_mask() for host sleep v1. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_cmd_versions));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
     }
 
     /* For get_host_event_wake_mask(). */
     {
         u32 mask;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 
         mask = ec_dev->host_event_wake_mask;
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU), 0);
         KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS), 0);
     }
 }
 
 static void cros_ec_proto_test_cmd_xfer_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct {
         struct cros_ec_command msg;
         u8 data[0x100];
     } __packed buf;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->max_passthru = 0xdd;
 
     buf.msg.version = 0;
     buf.msg.command = EC_CMD_HELLO;
     buf.msg.insize = 4;
     buf.msg.outsize = 2;
     buf.data[0] = 0x55;
     buf.data[1] = 0xaa;
 
     {
         u8 *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, 4);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (u8 *)mock->o_data;
         data[0] = 0xaa;
         data[1] = 0x55;
         data[2] = 0xcc;
         data[3] = 0x33;
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &buf.msg);
     KUNIT_EXPECT_EQ(test, ret, 4);
 
     {
         u8 *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, 4);
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 2);
 
         data = (u8 *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data[0], 0x55);
         KUNIT_EXPECT_EQ(test, data[1], 0xaa);
 
         KUNIT_EXPECT_EQ(test, buf.data[0], 0xaa);
         KUNIT_EXPECT_EQ(test, buf.data[1], 0x55);
         KUNIT_EXPECT_EQ(test, buf.data[2], 0xcc);
         KUNIT_EXPECT_EQ(test, buf.data[3], 0x33);
     }
 }
 
 static void cros_ec_proto_test_cmd_xfer_excess_msg_insize(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct {
         struct cros_ec_command msg;
         u8 data[0x100];
     } __packed buf;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->max_passthru = 0xdd;
 
     buf.msg.version = 0;
     buf.msg.command = EC_CMD_HELLO;
     buf.msg.insize = 0xee + 1;
     buf.msg.outsize = 2;
 
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0xcc);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &buf.msg);
     KUNIT_EXPECT_EQ(test, ret, 0xcc);
 
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, 0xee);
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 2);
     }
 }
 
 static void cros_ec_proto_test_cmd_xfer_excess_msg_outsize_without_passthru(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct {
         struct cros_ec_command msg;
         u8 data[0x100];
     } __packed buf;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->max_passthru = 0xdd;
 
     buf.msg.version = 0;
     buf.msg.command = EC_CMD_HELLO;
     buf.msg.insize = 4;
     buf.msg.outsize = 0xff + 1;
 
     ret = cros_ec_cmd_xfer(ec_dev, &buf.msg);
     KUNIT_EXPECT_EQ(test, ret, -EMSGSIZE);
 }
 
 static void cros_ec_proto_test_cmd_xfer_excess_msg_outsize_with_passthru(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct {
         struct cros_ec_command msg;
         u8 data[0x100];
     } __packed buf;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->max_passthru = 0xdd;
 
     buf.msg.version = 0;
     buf.msg.command = EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) + EC_CMD_HELLO;
     buf.msg.insize = 4;
     buf.msg.outsize = 0xdd + 1;
 
     ret = cros_ec_cmd_xfer(ec_dev, &buf.msg);
     KUNIT_EXPECT_EQ(test, ret, -EMSGSIZE);
 }
 
 static void cros_ec_proto_test_cmd_xfer_protocol_v3_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->proto_version = 3;
     ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_cmd_xfer_mock_called, 0);
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 1);
 }
 
 static void cros_ec_proto_test_cmd_xfer_protocol_v3_no_op(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->proto_version = 3;
     ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
     ec_dev->pkt_xfer = NULL;
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EIO);
 }
 
 static void cros_ec_proto_test_cmd_xfer_protocol_v2_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->proto_version = 2;
     ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_cmd_xfer_mock_called, 1);
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 0);
 }
 
 static void cros_ec_proto_test_cmd_xfer_protocol_v2_no_op(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->proto_version = 2;
     ec_dev->cmd_xfer = NULL;
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EIO);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS. */
     {
         struct ec_response_get_comms_status *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_comms_status *)mock->o_data;
         data->flags = 0;
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_comms_status));
 
     KUNIT_EXPECT_EQ(test, msg.result, EC_RES_SUCCESS);
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_COMMS_STATUS);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_comms_status));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_retries_eagain(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
     cros_kunit_ec_xfer_mock_default_ret = -EAGAIN;
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
 
     /* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 51);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_retries_status_processing(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
     {
         struct ec_response_get_comms_status *data;
         int i;
 
         for (i = 0; i < 50; ++i) {
             mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
             KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
             data = (struct ec_response_get_comms_status *)mock->o_data;
             data->flags |= EC_COMMS_STATUS_PROCESSING;
         }
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
 
     /* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 51);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_xfer_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, -EIO, EC_RES_SUCCESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EIO);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, 0);
 
     KUNIT_EXPECT_EQ(test, msg.result, EC_RES_INVALID_COMMAND);
 
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
 }
 
 static void cros_ec_proto_test_cmd_xfer_in_progress_return0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
 
     /* For the first host command to return EC_RES_IN_PROGRESS. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     /* For EC_CMD_GET_COMMS_STATUS. */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EPROTO);
 
     KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
 }
 
 static void cros_ec_proto_test_cmd_xfer_status_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     /* For cros_ec_cmd_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_add(test, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, 0);
 }
 
 static void cros_ec_proto_test_cmd_xfer_status_xfer_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_command msg;
 
     memset(&msg, 0, sizeof(msg));
 
     /* For cros_ec_cmd_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
     KUNIT_EXPECT_EQ(test, ret, -EPROTO);
 }
 
 static void cros_ec_proto_test_cmd_xfer_status_return_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret, i;
     struct cros_ec_command msg;
     static const int map[] = {
         [EC_RES_SUCCESS] = 0,
         [EC_RES_INVALID_COMMAND] = -EOPNOTSUPP,
         [EC_RES_ERROR] = -EIO,
         [EC_RES_INVALID_PARAM] = -EINVAL,
         [EC_RES_ACCESS_DENIED] = -EACCES,
         [EC_RES_INVALID_RESPONSE] = -EPROTO,
         [EC_RES_INVALID_VERSION] = -ENOPROTOOPT,
         [EC_RES_INVALID_CHECKSUM] = -EBADMSG,
         /*
          * EC_RES_IN_PROGRESS is special because cros_ec_send_command() has extra logic to
          * handle it.  Note that default cros_kunit_ec_xfer_mock_default_ret == 0 thus
          * cros_ec_xfer_command() in cros_ec_wait_until_complete() returns 0.  As a result,
          * it returns -EPROTO without calling cros_ec_map_error().
          */
         [EC_RES_IN_PROGRESS] = -EPROTO,
         [EC_RES_UNAVAILABLE] = -ENODATA,
         [EC_RES_TIMEOUT] = -ETIMEDOUT,
         [EC_RES_OVERFLOW] = -EOVERFLOW,
         [EC_RES_INVALID_HEADER] = -EBADR,
         [EC_RES_REQUEST_TRUNCATED] = -EBADR,
         [EC_RES_RESPONSE_TOO_BIG] = -EFBIG,
         [EC_RES_BUS_ERROR] = -EFAULT,
         [EC_RES_BUSY] = -EBUSY,
         [EC_RES_INVALID_HEADER_VERSION] = -EBADMSG,
         [EC_RES_INVALID_HEADER_CRC] = -EBADMSG,
         [EC_RES_INVALID_DATA_CRC] = -EBADMSG,
         [EC_RES_DUP_UNAVAILABLE] = -ENODATA,
     };
 
     memset(&msg, 0, sizeof(msg));
 
     for (i = 0; i < ARRAY_SIZE(map); ++i) {
         mock = cros_kunit_ec_xfer_mock_addx(test, 0, i, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
         KUNIT_EXPECT_EQ(test, ret, map[i]);
     }
 }
 
 static void cros_ec_proto_test_get_next_event_no_mkbp_event(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     bool wake_event, more_events;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->mkbp_event_supported = 0;
 
     /* Set some garbage bytes. */
     wake_event = false;
     more_events = true;
 
     /* For get_keyboard_state_event(). */
     {
         union ec_response_get_next_data_v1 *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (union ec_response_get_next_data_v1 *)mock->o_data;
         data->host_event = 0xbeef;
     }
 
     ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
     KUNIT_EXPECT_EQ(test, ret, sizeof(union ec_response_get_next_data_v1));
 
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_KEY_MATRIX);
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.host_event, 0xbeef);
 
     KUNIT_EXPECT_TRUE(test, wake_event);
     KUNIT_EXPECT_FALSE(test, more_events);
 
     /* For get_keyboard_state_event(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MKBP_STATE);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(union ec_response_get_next_data_v1));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_next_event_mkbp_event_ec_suspended(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
 
     ec_dev->mkbp_event_supported = 1;
     ec_dev->suspended = true;
 
     ret = cros_ec_get_next_event(ec_dev, NULL, NULL);
     KUNIT_EXPECT_EQ(test, ret, -EHOSTDOWN);
 }
 
 static void cros_ec_proto_test_get_next_event_mkbp_event_version0(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     bool wake_event, more_events;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->mkbp_event_supported = 1;
 
     /* Set some garbage bytes. */
     wake_event = true;
     more_events = false;
 
     /* For get_next_event_xfer(). */
     {
         struct ec_response_get_next_event *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_next_event *)mock->o_data;
         data->event_type = EC_MKBP_EVENT_SENSOR_FIFO | EC_MKBP_HAS_MORE_EVENTS;
         data->data.sysrq = 0xbeef;
     }
 
     ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
     KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_next_event));
 
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_SENSOR_FIFO);
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.sysrq, 0xbeef);
 
     KUNIT_EXPECT_FALSE(test, wake_event);
     KUNIT_EXPECT_TRUE(test, more_events);
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_get_next_event));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_next_event_mkbp_event_version2(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     bool wake_event, more_events;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->mkbp_event_supported = 3;
 
     /* Set some garbage bytes. */
     wake_event = false;
     more_events = true;
 
     /* For get_next_event_xfer(). */
     {
         struct ec_response_get_next_event_v1 *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_next_event_v1 *)mock->o_data;
         data->event_type = EC_MKBP_EVENT_FINGERPRINT;
         data->data.sysrq = 0xbeef;
     }
 
     ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
     KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_next_event_v1));
 
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_FINGERPRINT);
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.sysrq, 0xbeef);
 
     KUNIT_EXPECT_TRUE(test, wake_event);
     KUNIT_EXPECT_FALSE(test, more_events);
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_next_event_v1));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_next_event_mkbp_event_host_event_rtc(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     bool wake_event;
     struct ec_response_get_next_event_v1 *data;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->mkbp_event_supported = 3;
     ec_dev->host_event_wake_mask = U32_MAX;
 
     /* Set some garbage bytes. */
     wake_event = true;
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_add(test,
                            sizeof(data->event_type) +
                            sizeof(data->data.host_event));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_next_event_v1 *)mock->o_data;
         data->event_type = EC_MKBP_EVENT_HOST_EVENT;
         put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC), &data->data.host_event);
     }
 
     ret = cros_ec_get_next_event(ec_dev, &wake_event, NULL);
     KUNIT_EXPECT_EQ(test, ret, sizeof(data->event_type) + sizeof(data->data.host_event));
 
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_HOST_EVENT);
 
     KUNIT_EXPECT_FALSE(test, wake_event);
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_next_event_v1));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_next_event_mkbp_event_host_event_masked(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     bool wake_event;
     struct ec_response_get_next_event_v1 *data;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->mkbp_event_supported = 3;
     ec_dev->host_event_wake_mask = U32_MAX & ~EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED);
 
     /* Set some garbage bytes. */
     wake_event = true;
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_add(test,
                            sizeof(data->event_type) +
                            sizeof(data->data.host_event));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_next_event_v1 *)mock->o_data;
         data->event_type = EC_MKBP_EVENT_HOST_EVENT;
         put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED),
                    &data->data.host_event);
     }
 
     ret = cros_ec_get_next_event(ec_dev, &wake_event, NULL);
     KUNIT_EXPECT_EQ(test, ret, sizeof(data->event_type) + sizeof(data->data.host_event));
 
     KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_HOST_EVENT);
 
     KUNIT_EXPECT_FALSE(test, wake_event);
 
     /* For get_next_event_xfer(). */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
         KUNIT_EXPECT_EQ(test, mock->msg.insize,
                 sizeof(struct ec_response_get_next_event_v1));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_host_event_no_mkbp_event(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
 
     ec_dev->mkbp_event_supported = 0;
 
     ret = cros_ec_get_host_event(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 }
 
 static void cros_ec_proto_test_get_host_event_not_host_event(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
 
     ec_dev->mkbp_event_supported = 1;
     ec_dev->event_data.event_type = EC_MKBP_EVENT_FINGERPRINT;
 
     ret = cros_ec_get_host_event(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 }
 
 static void cros_ec_proto_test_get_host_event_wrong_event_size(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
 
     ec_dev->mkbp_event_supported = 1;
     ec_dev->event_data.event_type = EC_MKBP_EVENT_HOST_EVENT;
     ec_dev->event_size = 0xff;
 
     ret = cros_ec_get_host_event(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, 0);
 }
 
 static void cros_ec_proto_test_get_host_event_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     int ret;
 
     ec_dev->mkbp_event_supported = 1;
     ec_dev->event_data.event_type = EC_MKBP_EVENT_HOST_EVENT;
     ec_dev->event_size = sizeof(ec_dev->event_data.data.host_event);
     put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC),
                &ec_dev->event_data.data.host_event);
 
     ret = cros_ec_get_host_event(ec_dev);
     KUNIT_EXPECT_EQ(test, ret, EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC));
 }
 
 static void cros_ec_proto_test_check_features_cached(struct kunit *test)
 {
     int ret, i;
     struct cros_ec_dev ec;
 
     ec.features.flags[0] = EC_FEATURE_MASK_0(EC_FEATURE_FINGERPRINT);
     ec.features.flags[1] = EC_FEATURE_MASK_0(EC_FEATURE_SCP);
 
     for (i = 0; i < EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK; ++i) {
         ret = cros_ec_check_features(&ec, i);
         switch (i) {
         case EC_FEATURE_FINGERPRINT:
         case EC_FEATURE_SCP:
             KUNIT_EXPECT_TRUE(test, ret);
             break;
         default:
             KUNIT_EXPECT_FALSE(test, ret);
             break;
         }
     }
 }
 
 static void cros_ec_proto_test_check_features_not_cached(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret, i;
     struct cros_ec_dev ec;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec.ec_dev = ec_dev;
     ec.dev = ec_dev->dev;
     ec.cmd_offset = 0;
     ec.features.flags[0] = -1;
     ec.features.flags[1] = -1;
 
     /* For EC_CMD_GET_FEATURES. */
     {
         struct ec_response_get_features *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_get_features *)mock->o_data;
         data->flags[0] = EC_FEATURE_MASK_0(EC_FEATURE_FINGERPRINT);
         data->flags[1] = EC_FEATURE_MASK_0(EC_FEATURE_SCP);
     }
 
     for (i = 0; i < EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK; ++i) {
         ret = cros_ec_check_features(&ec, i);
         switch (i) {
         case EC_FEATURE_FINGERPRINT:
         case EC_FEATURE_SCP:
             KUNIT_EXPECT_TRUE(test, ret);
             break;
         default:
             KUNIT_EXPECT_FALSE(test, ret);
             break;
         }
     }
 
     /* For EC_CMD_GET_FEATURES. */
     {
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_FEATURES);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_get_features));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
     }
 }
 
 static void cros_ec_proto_test_get_sensor_count_normal(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_dev ec;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec.ec_dev = ec_dev;
     ec.dev = ec_dev->dev;
     ec.cmd_offset = 0;
 
     /* For EC_CMD_MOTION_SENSE_CMD. */
     {
         struct ec_response_motion_sense *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (struct ec_response_motion_sense *)mock->o_data;
         data->dump.sensor_count = 0xbf;
     }
 
     ret = cros_ec_get_sensor_count(&ec);
     KUNIT_EXPECT_EQ(test, ret, 0xbf);
 
     /* For EC_CMD_MOTION_SENSE_CMD. */
     {
         struct ec_params_motion_sense *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_motion_sense));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_motion_sense *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
     }
 }
 
 static void cros_ec_proto_test_get_sensor_count_xfer_error(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     struct cros_ec_dev ec;
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec.ec_dev = ec_dev;
     ec.dev = ec_dev->dev;
     ec.cmd_offset = 0;
 
     /* For EC_CMD_MOTION_SENSE_CMD. */
     {
         mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
     }
 
     ret = cros_ec_get_sensor_count(&ec);
     KUNIT_EXPECT_EQ(test, ret, -EPROTO);
 
     /* For EC_CMD_MOTION_SENSE_CMD. */
     {
         struct ec_params_motion_sense *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
         KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_motion_sense));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
         data = (struct ec_params_motion_sense *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
     }
 }
 
 static void cros_ec_proto_test_get_sensor_count_legacy(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret, i;
     struct cros_ec_dev ec;
     struct {
         u8 readmem_data;
         int expected_result;
     } test_data[] = {
         { 0, 0 },
         { EC_MEMMAP_ACC_STATUS_PRESENCE_BIT, 2 },
     };
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
     ec_dev->cmd_readmem = cros_kunit_readmem_mock;
     ec.ec_dev = ec_dev;
     ec.dev = ec_dev->dev;
     ec.cmd_offset = 0;
 
     for (i = 0; i < ARRAY_SIZE(test_data); ++i) {
         /* For EC_CMD_MOTION_SENSE_CMD. */
         {
             mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
             KUNIT_ASSERT_PTR_NE(test, mock, NULL);
         }
 
         /* For readmem. */
         {
             cros_kunit_readmem_mock_data = kunit_kzalloc(test, 1, GFP_KERNEL);
             KUNIT_ASSERT_PTR_NE(test, cros_kunit_readmem_mock_data, NULL);
             cros_kunit_readmem_mock_data[0] = test_data[i].readmem_data;
 
             cros_kunit_ec_xfer_mock_default_ret = 1;
         }
 
         ret = cros_ec_get_sensor_count(&ec);
         KUNIT_EXPECT_EQ(test, ret, test_data[i].expected_result);
 
         /* For EC_CMD_MOTION_SENSE_CMD. */
         {
             struct ec_params_motion_sense *data;
 
             mock = cros_kunit_ec_xfer_mock_next();
             KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
             KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
             KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
             KUNIT_EXPECT_EQ(test, mock->msg.insize,
                     sizeof(struct ec_response_motion_sense));
             KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 
             data = (struct ec_params_motion_sense *)mock->i_data;
             KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
         }
 
         /* For readmem. */
         {
             KUNIT_EXPECT_EQ(test, cros_kunit_readmem_mock_offset, EC_MEMMAP_ACC_STATUS);
         }
     }
 }
 
 static void cros_ec_proto_test_ec_cmd(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
     struct ec_xfer_mock *mock;
     int ret;
     u8 out[3], in[2];
 
     ec_dev->max_request = 0xff;
     ec_dev->max_response = 0xee;
 
     out[0] = 0xdd;
     out[1] = 0xcc;
     out[2] = 0xbb;
 
     {
         u8 *data;
 
         mock = cros_kunit_ec_xfer_mock_add(test, 2);
         KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 
         data = (u8 *)mock->o_data;
         data[0] = 0xaa;
         data[1] = 0x99;
     }
 
     ret = cros_ec_cmd(ec_dev, 0x88, 0x77, out, ARRAY_SIZE(out), in, ARRAY_SIZE(in));
     KUNIT_EXPECT_EQ(test, ret, 2);
 
     {
         u8 *data;
 
         mock = cros_kunit_ec_xfer_mock_next();
         KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 
         KUNIT_EXPECT_EQ(test, mock->msg.version, 0x88);
         KUNIT_EXPECT_EQ(test, mock->msg.command, 0x77);
         KUNIT_EXPECT_EQ(test, mock->msg.insize, ARRAY_SIZE(in));
         KUNIT_EXPECT_EQ(test, mock->msg.outsize, ARRAY_SIZE(out));
 
         data = (u8 *)mock->i_data;
         KUNIT_EXPECT_EQ(test, data[0], 0xdd);
         KUNIT_EXPECT_EQ(test, data[1], 0xcc);
         KUNIT_EXPECT_EQ(test, data[2], 0xbb);
     }
 }
 
 static void cros_ec_proto_test_release(struct device *dev)
 {
 }
 
 static int cros_ec_proto_test_init(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv;
     struct cros_ec_device *ec_dev;
 
     priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
     if (!priv)
         return -ENOMEM;
     test->priv = priv;
 
     ec_dev = &priv->ec_dev;
     ec_dev->dout = (u8 *)priv->dout;
     ec_dev->dout_size = ARRAY_SIZE(priv->dout);
     ec_dev->din = (u8 *)priv->din;
     ec_dev->din_size = ARRAY_SIZE(priv->din);
     ec_dev->proto_version = EC_HOST_REQUEST_VERSION;
     ec_dev->dev = kunit_kzalloc(test, sizeof(*ec_dev->dev), GFP_KERNEL);
     if (!ec_dev->dev)
         return -ENOMEM;
     device_initialize(ec_dev->dev);
     dev_set_name(ec_dev->dev, "cros_ec_proto_test");
     ec_dev->dev->release = cros_ec_proto_test_release;
     ec_dev->cmd_xfer = cros_kunit_ec_xfer_mock;
     ec_dev->pkt_xfer = cros_kunit_ec_xfer_mock;
 
     priv->msg = (struct cros_ec_command *)priv->_msg;
 
     cros_kunit_mock_reset();
 
     return 0;
 }
 
 static void cros_ec_proto_test_exit(struct kunit *test)
 {
     struct cros_ec_proto_test_priv *priv = test->priv;
     struct cros_ec_device *ec_dev = &priv->ec_dev;
 
     put_device(ec_dev->dev);
 }
 
 static struct kunit_case cros_ec_proto_test_cases[] = {
     KUNIT_CASE(cros_ec_proto_test_prepare_tx_legacy_normal),
     KUNIT_CASE(cros_ec_proto_test_prepare_tx_legacy_bad_msg_outsize),
     KUNIT_CASE(cros_ec_proto_test_prepare_tx_normal),
     KUNIT_CASE(cros_ec_proto_test_prepare_tx_bad_msg_outsize),
     KUNIT_CASE(cros_ec_proto_test_check_result),
     KUNIT_CASE(cros_ec_proto_test_query_all_normal),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_pd_return_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_pd_return0),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_normal_v3_return_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_normal_v3_return0),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_xfer_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_return_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_data_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_legacy_return0),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return0),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep),
     KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep_return0),
     KUNIT_CASE(cros_ec_proto_test_query_all_default_wake_mask_return_error),
     KUNIT_CASE(cros_ec_proto_test_query_all_default_wake_mask_return0),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_normal),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_insize),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_outsize_without_passthru),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_outsize_with_passthru),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v3_normal),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v3_no_op),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v2_normal),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v2_no_op),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_normal),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_retries_eagain),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_retries_status_processing),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_xfer_error),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_return_error),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_return0),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_normal),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_xfer_error),
     KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_return_error),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_no_mkbp_event),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_ec_suspended),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_version0),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_version2),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_host_event_rtc),
     KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_host_event_masked),
     KUNIT_CASE(cros_ec_proto_test_get_host_event_no_mkbp_event),
     KUNIT_CASE(cros_ec_proto_test_get_host_event_not_host_event),
     KUNIT_CASE(cros_ec_proto_test_get_host_event_wrong_event_size),
     KUNIT_CASE(cros_ec_proto_test_get_host_event_normal),
     KUNIT_CASE(cros_ec_proto_test_check_features_cached),
     KUNIT_CASE(cros_ec_proto_test_check_features_not_cached),
     KUNIT_CASE(cros_ec_proto_test_get_sensor_count_normal),
     KUNIT_CASE(cros_ec_proto_test_get_sensor_count_xfer_error),
     KUNIT_CASE(cros_ec_proto_test_get_sensor_count_legacy),
     KUNIT_CASE(cros_ec_proto_test_ec_cmd),
     {}
 };
 
 static struct kunit_suite cros_ec_proto_test_suite = {
     .name = "cros_ec_proto_test",
     .init = cros_ec_proto_test_init,
     .exit = cros_ec_proto_test_exit,
     .test_cases = cros_ec_proto_test_cases,
 };
 
 kunit_test_suite(cros_ec_proto_test_suite);
 
 MODULE_LICENSE("GPL");