1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Kunit tests for ChromeOS Embedded Controller protocol.
   4 */
   5
   6#include <kunit/test.h>
   7
   8#include <linux/unaligned.h>
   9
  10#include <linux/platform_data/cros_ec_commands.h>
  11#include <linux/platform_data/cros_ec_proto.h>
  12
  13#include "cros_ec.h"
  14#include "cros_ec_proto_test_util.h"
  15
  16#define BUFSIZE 512
  17
  18struct cros_ec_proto_test_priv {
  19	struct cros_ec_device ec_dev;
  20	u8 dout[BUFSIZE];
  21	u8 din[BUFSIZE];
  22	struct cros_ec_command *msg;
  23	u8 _msg[BUFSIZE];
  24};
  25
  26static void cros_ec_proto_test_prepare_tx_legacy_normal(struct kunit *test)
  27{
  28	struct cros_ec_proto_test_priv *priv = test->priv;
  29	struct cros_ec_device *ec_dev = &priv->ec_dev;
  30	struct cros_ec_command *msg = priv->msg;
  31	int ret, i;
  32	u8 csum;
  33
  34	ec_dev->proto_version = 2;
  35
  36	msg->command = EC_CMD_HELLO;
  37	msg->outsize = EC_PROTO2_MAX_PARAM_SIZE;
  38	msg->data[0] = 0xde;
  39	msg->data[1] = 0xad;
  40	msg->data[2] = 0xbe;
  41	msg->data[3] = 0xef;
  42
  43	ret = cros_ec_prepare_tx(ec_dev, msg);
  44
  45	KUNIT_EXPECT_EQ(test, ret, EC_MSG_TX_PROTO_BYTES + EC_PROTO2_MAX_PARAM_SIZE);
  46	KUNIT_EXPECT_EQ(test, ec_dev->dout[0], EC_CMD_VERSION0);
  47	KUNIT_EXPECT_EQ(test, ec_dev->dout[1], EC_CMD_HELLO);
  48	KUNIT_EXPECT_EQ(test, ec_dev->dout[2], EC_PROTO2_MAX_PARAM_SIZE);
  49	KUNIT_EXPECT_EQ(test, EC_MSG_TX_HEADER_BYTES, 3);
  50	KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 0], 0xde);
  51	KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 1], 0xad);
  52	KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 2], 0xbe);
  53	KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + 3], 0xef);
  54	for (i = 4; i < EC_PROTO2_MAX_PARAM_SIZE; ++i)
  55		KUNIT_EXPECT_EQ(test, ec_dev->dout[EC_MSG_TX_HEADER_BYTES + i], 0);
  56
  57	csum = EC_CMD_VERSION0;
  58	csum += EC_CMD_HELLO;
  59	csum += EC_PROTO2_MAX_PARAM_SIZE;
  60	csum += 0xde;
  61	csum += 0xad;
  62	csum += 0xbe;
  63	csum += 0xef;
  64	KUNIT_EXPECT_EQ(test,
  65			ec_dev->dout[EC_MSG_TX_HEADER_BYTES + EC_PROTO2_MAX_PARAM_SIZE],
  66			csum);
  67}
  68
  69static void cros_ec_proto_test_prepare_tx_legacy_bad_msg_outsize(struct kunit *test)
  70{
  71	struct cros_ec_proto_test_priv *priv = test->priv;
  72	struct cros_ec_device *ec_dev = &priv->ec_dev;
  73	struct cros_ec_command *msg = priv->msg;
  74	int ret;
  75
  76	ec_dev->proto_version = 2;
  77
  78	msg->outsize = EC_PROTO2_MAX_PARAM_SIZE + 1;
  79
  80	ret = cros_ec_prepare_tx(ec_dev, msg);
  81	KUNIT_EXPECT_EQ(test, ret, -EINVAL);
  82}
  83
  84static void cros_ec_proto_test_prepare_tx_normal(struct kunit *test)
  85{
  86	struct cros_ec_proto_test_priv *priv = test->priv;
  87	struct cros_ec_device *ec_dev = &priv->ec_dev;
  88	struct cros_ec_command *msg = priv->msg;
  89	struct ec_host_request *request = (struct ec_host_request *)ec_dev->dout;
  90	int ret, i;
  91	u8 csum;
  92
  93	msg->command = EC_CMD_HELLO;
  94	msg->outsize = 0x88;
  95	msg->data[0] = 0xde;
  96	msg->data[1] = 0xad;
  97	msg->data[2] = 0xbe;
  98	msg->data[3] = 0xef;
  99
 100	ret = cros_ec_prepare_tx(ec_dev, msg);
 101
 102	KUNIT_EXPECT_EQ(test, ret, sizeof(*request) + 0x88);
 103
 104	KUNIT_EXPECT_EQ(test, request->struct_version, EC_HOST_REQUEST_VERSION);
 105	KUNIT_EXPECT_EQ(test, request->command, EC_CMD_HELLO);
 106	KUNIT_EXPECT_EQ(test, request->command_version, 0);
 107	KUNIT_EXPECT_EQ(test, request->data_len, 0x88);
 108	KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 0], 0xde);
 109	KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 1], 0xad);
 110	KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 2], 0xbe);
 111	KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + 3], 0xef);
 112	for (i = 4; i < 0x88; ++i)
 113		KUNIT_EXPECT_EQ(test, ec_dev->dout[sizeof(*request) + i], 0);
 114
 115	csum = EC_HOST_REQUEST_VERSION;
 116	csum += EC_CMD_HELLO;
 117	csum += 0x88;
 118	csum += 0xde;
 119	csum += 0xad;
 120	csum += 0xbe;
 121	csum += 0xef;
 122	KUNIT_EXPECT_EQ(test, request->checksum, (u8)-csum);
 123}
 124
 125static void cros_ec_proto_test_prepare_tx_bad_msg_outsize(struct kunit *test)
 126{
 127	struct cros_ec_proto_test_priv *priv = test->priv;
 128	struct cros_ec_device *ec_dev = &priv->ec_dev;
 129	struct cros_ec_command *msg = priv->msg;
 130	int ret;
 131
 132	msg->outsize = ec_dev->dout_size - sizeof(struct ec_host_request) + 1;
 133
 134	ret = cros_ec_prepare_tx(ec_dev, msg);
 135	KUNIT_EXPECT_EQ(test, ret, -EINVAL);
 136}
 137
 138static void cros_ec_proto_test_check_result(struct kunit *test)
 139{
 140	struct cros_ec_proto_test_priv *priv = test->priv;
 141	struct cros_ec_device *ec_dev = &priv->ec_dev;
 142	struct cros_ec_command *msg = priv->msg;
 143	int ret, i;
 144	static enum ec_status status[] = {
 145		EC_RES_SUCCESS,
 146		EC_RES_INVALID_COMMAND,
 147		EC_RES_ERROR,
 148		EC_RES_INVALID_PARAM,
 149		EC_RES_ACCESS_DENIED,
 150		EC_RES_INVALID_RESPONSE,
 151		EC_RES_INVALID_VERSION,
 152		EC_RES_INVALID_CHECKSUM,
 153		EC_RES_UNAVAILABLE,
 154		EC_RES_TIMEOUT,
 155		EC_RES_OVERFLOW,
 156		EC_RES_INVALID_HEADER,
 157		EC_RES_REQUEST_TRUNCATED,
 158		EC_RES_RESPONSE_TOO_BIG,
 159		EC_RES_BUS_ERROR,
 160		EC_RES_BUSY,
 161		EC_RES_INVALID_HEADER_VERSION,
 162		EC_RES_INVALID_HEADER_CRC,
 163		EC_RES_INVALID_DATA_CRC,
 164		EC_RES_DUP_UNAVAILABLE,
 165	};
 166
 167	for (i = 0; i < ARRAY_SIZE(status); ++i) {
 168		msg->result = status[i];
 169		ret = cros_ec_check_result(ec_dev, msg);
 170		KUNIT_EXPECT_EQ(test, ret, 0);
 171	}
 172
 173	msg->result = EC_RES_IN_PROGRESS;
 174	ret = cros_ec_check_result(ec_dev, msg);
 175	KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
 176}
 177
 178static void cros_ec_proto_test_query_all_pretest(struct kunit *test)
 179{
 180	struct cros_ec_proto_test_priv *priv = test->priv;
 181	struct cros_ec_device *ec_dev = &priv->ec_dev;
 182
 183	/*
 184	 * cros_ec_query_all() will free din and dout and allocate them again to fit the usage by
 185	 * calling devm_kfree() and devm_kzalloc().  Set them to NULL as they aren't managed by
 186	 * ec_dev->dev but allocated statically in struct cros_ec_proto_test_priv
 187	 * (see cros_ec_proto_test_init()).
 188	 */
 189	ec_dev->din = NULL;
 190	ec_dev->dout = NULL;
 191}
 192
 193static void cros_ec_proto_test_query_all_normal(struct kunit *test)
 194{
 195	struct cros_ec_proto_test_priv *priv = test->priv;
 196	struct cros_ec_device *ec_dev = &priv->ec_dev;
 197	struct ec_xfer_mock *mock;
 198	int ret;
 199
 200	/* For cros_ec_get_proto_info() without passthru. */
 201	{
 202		struct ec_response_get_protocol_info *data;
 203
 204		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 205		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 206
 207		data = (struct ec_response_get_protocol_info *)mock->o_data;
 208		data->protocol_versions = BIT(3) | BIT(2);
 209		data->max_request_packet_size = 0xbe;
 210		data->max_response_packet_size = 0xef;
 211	}
 212
 213	/* For cros_ec_get_proto_info() with passthru. */
 214	{
 215		struct ec_response_get_protocol_info *data;
 216
 217		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 218		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 219
 220		data = (struct ec_response_get_protocol_info *)mock->o_data;
 221		data->max_request_packet_size = 0xbf;
 222	}
 223
 224	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 225	{
 226		struct ec_response_get_cmd_versions *data;
 227
 228		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 229		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 230
 231		data = (struct ec_response_get_cmd_versions *)mock->o_data;
 232		data->version_mask = BIT(6) | BIT(5);
 233	}
 234
 235	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
 236	{
 237		struct ec_response_get_cmd_versions *data;
 238
 239		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 240		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 241
 242		data = (struct ec_response_get_cmd_versions *)mock->o_data;
 243		data->version_mask = BIT(1);
 244	}
 245
 246	/* For cros_ec_get_host_event_wake_mask(). */
 247	{
 248		struct ec_response_host_event_mask *data;
 249
 250		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 251		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 252
 253		data = (struct ec_response_host_event_mask *)mock->o_data;
 254		data->mask = 0xbeef;
 255	}
 256
 257	cros_ec_proto_test_query_all_pretest(test);
 258	ret = cros_ec_query_all(ec_dev);
 259	KUNIT_EXPECT_EQ(test, ret, 0);
 260
 261	/* For cros_ec_get_proto_info() without passthru. */
 262	{
 263		mock = cros_kunit_ec_xfer_mock_next();
 264		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 265
 266		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 267		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 268		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 269				sizeof(struct ec_response_get_protocol_info));
 270		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 271
 272		KUNIT_EXPECT_EQ(test, ec_dev->max_request, 0xbe - sizeof(struct ec_host_request));
 273		KUNIT_EXPECT_EQ(test, ec_dev->max_response, 0xef - sizeof(struct ec_host_response));
 274		KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 3);
 275		KUNIT_EXPECT_EQ(test, ec_dev->din_size, 0xef + EC_MAX_RESPONSE_OVERHEAD);
 276		KUNIT_EXPECT_EQ(test, ec_dev->dout_size, 0xbe + EC_MAX_REQUEST_OVERHEAD);
 277	}
 278
 279	/* For cros_ec_get_proto_info() with passthru. */
 280	{
 281		mock = cros_kunit_ec_xfer_mock_next();
 282		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 283
 284		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 285		KUNIT_EXPECT_EQ(test, mock->msg.command,
 286				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
 287				EC_CMD_GET_PROTOCOL_INFO);
 288		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 289				sizeof(struct ec_response_get_protocol_info));
 290		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 291
 292		KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0xbf - sizeof(struct ec_host_request));
 293	}
 294
 295	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 296	{
 297		struct ec_params_get_cmd_versions *data;
 298
 299		mock = cros_kunit_ec_xfer_mock_next();
 300		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 301
 302		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 303		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
 304		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 305				sizeof(struct ec_response_get_cmd_versions));
 306		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 307
 308		data = (struct ec_params_get_cmd_versions *)mock->i_data;
 309		KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 310
 311		KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 7);
 312	}
 313
 314	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
 315	{
 316		struct ec_params_get_cmd_versions *data;
 317
 318		mock = cros_kunit_ec_xfer_mock_next();
 319		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 320
 321		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 322		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
 323		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 324				sizeof(struct ec_response_get_cmd_versions));
 325		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 326
 327		data = (struct ec_params_get_cmd_versions *)mock->i_data;
 328		KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_HOST_SLEEP_EVENT);
 329
 330		KUNIT_EXPECT_TRUE(test, ec_dev->host_sleep_v1);
 331	}
 332
 333	/* For cros_ec_get_host_event_wake_mask(). */
 334	{
 335		mock = cros_kunit_ec_xfer_mock_next();
 336		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 337
 338		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 339		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
 340		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
 341		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 342
 343		KUNIT_EXPECT_EQ(test, ec_dev->host_event_wake_mask, 0xbeef);
 344	}
 345}
 346
 347static void cros_ec_proto_test_query_all_no_pd_return_error(struct kunit *test)
 348{
 349	struct cros_ec_proto_test_priv *priv = test->priv;
 350	struct cros_ec_device *ec_dev = &priv->ec_dev;
 351	struct ec_xfer_mock *mock;
 352	int ret;
 353
 354	/* Set some garbage bytes. */
 355	ec_dev->max_passthru = 0xbf;
 356
 357	/* For cros_ec_get_proto_info() without passthru. */
 358	{
 359		struct ec_response_get_protocol_info *data;
 360
 361		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 362		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 363
 364		/*
 365		 * Although it doesn't check the value, provides valid sizes so that
 366		 * cros_ec_query_all() allocates din and dout correctly.
 367		 */
 368		data = (struct ec_response_get_protocol_info *)mock->o_data;
 369		data->max_request_packet_size = 0xbe;
 370		data->max_response_packet_size = 0xef;
 371	}
 372
 373	/* For cros_ec_get_proto_info() with passthru. */
 374	{
 375		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 376		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 377	}
 378
 379	cros_ec_proto_test_query_all_pretest(test);
 380	ret = cros_ec_query_all(ec_dev);
 381	KUNIT_EXPECT_EQ(test, ret, 0);
 382
 383	/* For cros_ec_get_proto_info() without passthru. */
 384	{
 385		mock = cros_kunit_ec_xfer_mock_next();
 386		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 387
 388		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 389		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 390		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 391				sizeof(struct ec_response_get_protocol_info));
 392		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 393	}
 394
 395	/* For cros_ec_get_proto_info() with passthru. */
 396	{
 397		mock = cros_kunit_ec_xfer_mock_next();
 398		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 399
 400		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 401		KUNIT_EXPECT_EQ(test, mock->msg.command,
 402				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
 403				EC_CMD_GET_PROTOCOL_INFO);
 404		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 405				sizeof(struct ec_response_get_protocol_info));
 406		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 407
 408		KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
 409	}
 410}
 411
 412static void cros_ec_proto_test_query_all_no_pd_return0(struct kunit *test)
 413{
 414	struct cros_ec_proto_test_priv *priv = test->priv;
 415	struct cros_ec_device *ec_dev = &priv->ec_dev;
 416	struct ec_xfer_mock *mock;
 417	int ret;
 418
 419	/* Set some garbage bytes. */
 420	ec_dev->max_passthru = 0xbf;
 421
 422	/* For cros_ec_get_proto_info() without passthru. */
 423	{
 424		struct ec_response_get_protocol_info *data;
 425
 426		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 427		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 428
 429		/*
 430		 * Although it doesn't check the value, provides valid sizes so that
 431		 * cros_ec_query_all() allocates din and dout correctly.
 432		 */
 433		data = (struct ec_response_get_protocol_info *)mock->o_data;
 434		data->max_request_packet_size = 0xbe;
 435		data->max_response_packet_size = 0xef;
 436	}
 437
 438	/* For cros_ec_get_proto_info() with passthru. */
 439	{
 440		mock = cros_kunit_ec_xfer_mock_add(test, 0);
 441		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 442	}
 443
 444	cros_ec_proto_test_query_all_pretest(test);
 445	ret = cros_ec_query_all(ec_dev);
 446	KUNIT_EXPECT_EQ(test, ret, 0);
 447
 448	/* For cros_ec_get_proto_info() without passthru. */
 449	{
 450		mock = cros_kunit_ec_xfer_mock_next();
 451		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 452
 453		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 454		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 455		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 456				sizeof(struct ec_response_get_protocol_info));
 457		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 458	}
 459
 460	/* For cros_ec_get_proto_info() with passthru. */
 461	{
 462		mock = cros_kunit_ec_xfer_mock_next();
 463		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 464
 465		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 466		KUNIT_EXPECT_EQ(test, mock->msg.command,
 467				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
 468				EC_CMD_GET_PROTOCOL_INFO);
 469		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 470				sizeof(struct ec_response_get_protocol_info));
 471		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 472
 473		KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
 474	}
 475}
 476
 477static void cros_ec_proto_test_query_all_legacy_normal_v3_return_error(struct kunit *test)
 478{
 479	struct cros_ec_proto_test_priv *priv = test->priv;
 480	struct cros_ec_device *ec_dev = &priv->ec_dev;
 481	struct ec_xfer_mock *mock;
 482	int ret;
 483
 484	/* For cros_ec_get_proto_info() without passthru. */
 485	{
 486		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 487		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 488	}
 489
 490	/* For cros_ec_get_proto_info_legacy(). */
 491	{
 492		struct ec_response_hello *data;
 493
 494		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 495		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 496
 497		data = (struct ec_response_hello *)mock->o_data;
 498		data->out_data = 0xa1b2c3d4;
 499	}
 500
 501	cros_ec_proto_test_query_all_pretest(test);
 502	ret = cros_ec_query_all(ec_dev);
 503	KUNIT_EXPECT_EQ(test, ret, 0);
 504
 505	/* For cros_ec_get_proto_info() without passthru. */
 506	{
 507		mock = cros_kunit_ec_xfer_mock_next();
 508		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 509
 510		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 511		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 512		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 513				sizeof(struct ec_response_get_protocol_info));
 514		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 515	}
 516
 517	/* For cros_ec_get_proto_info_legacy(). */
 518	{
 519		struct ec_params_hello *data;
 520
 521		mock = cros_kunit_ec_xfer_mock_next();
 522		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 523
 524		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 525		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 526		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 527		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 528
 529		data = (struct ec_params_hello *)mock->i_data;
 530		KUNIT_EXPECT_EQ(test, data->in_data, 0xa0b0c0d0);
 531
 532		KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 2);
 533		KUNIT_EXPECT_EQ(test, ec_dev->max_request, EC_PROTO2_MAX_PARAM_SIZE);
 534		KUNIT_EXPECT_EQ(test, ec_dev->max_response, EC_PROTO2_MAX_PARAM_SIZE);
 535		KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
 536		KUNIT_EXPECT_PTR_EQ(test, ec_dev->pkt_xfer, NULL);
 537		KUNIT_EXPECT_EQ(test, ec_dev->din_size, EC_PROTO2_MSG_BYTES);
 538		KUNIT_EXPECT_EQ(test, ec_dev->dout_size, EC_PROTO2_MSG_BYTES);
 539	}
 540}
 541
 542static void cros_ec_proto_test_query_all_legacy_normal_v3_return0(struct kunit *test)
 543{
 544	struct cros_ec_proto_test_priv *priv = test->priv;
 545	struct cros_ec_device *ec_dev = &priv->ec_dev;
 546	struct ec_xfer_mock *mock;
 547	int ret;
 548
 549	/* For cros_ec_get_proto_info() without passthru. */
 550	{
 551		mock = cros_kunit_ec_xfer_mock_add(test, 0);
 552		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 553	}
 554
 555	/* For cros_ec_get_proto_info_legacy(). */
 556	{
 557		struct ec_response_hello *data;
 558
 559		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 560		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 561
 562		data = (struct ec_response_hello *)mock->o_data;
 563		data->out_data = 0xa1b2c3d4;
 564	}
 565
 566	cros_ec_proto_test_query_all_pretest(test);
 567	ret = cros_ec_query_all(ec_dev);
 568	KUNIT_EXPECT_EQ(test, ret, 0);
 569
 570	/* For cros_ec_get_proto_info() without passthru. */
 571	{
 572		mock = cros_kunit_ec_xfer_mock_next();
 573		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 574
 575		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 576		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 577		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 578				sizeof(struct ec_response_get_protocol_info));
 579		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 580	}
 581
 582	/* For cros_ec_get_proto_info_legacy(). */
 583	{
 584		struct ec_params_hello *data;
 585
 586		mock = cros_kunit_ec_xfer_mock_next();
 587		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 588
 589		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 590		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 591		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 592		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 593
 594		data = (struct ec_params_hello *)mock->i_data;
 595		KUNIT_EXPECT_EQ(test, data->in_data, 0xa0b0c0d0);
 596
 597		KUNIT_EXPECT_EQ(test, ec_dev->proto_version, 2);
 598		KUNIT_EXPECT_EQ(test, ec_dev->max_request, EC_PROTO2_MAX_PARAM_SIZE);
 599		KUNIT_EXPECT_EQ(test, ec_dev->max_response, EC_PROTO2_MAX_PARAM_SIZE);
 600		KUNIT_EXPECT_EQ(test, ec_dev->max_passthru, 0);
 601		KUNIT_EXPECT_PTR_EQ(test, ec_dev->pkt_xfer, NULL);
 602		KUNIT_EXPECT_EQ(test, ec_dev->din_size, EC_PROTO2_MSG_BYTES);
 603		KUNIT_EXPECT_EQ(test, ec_dev->dout_size, EC_PROTO2_MSG_BYTES);
 604	}
 605}
 606
 607static void cros_ec_proto_test_query_all_legacy_xfer_error(struct kunit *test)
 608{
 609	struct cros_ec_proto_test_priv *priv = test->priv;
 610	struct cros_ec_device *ec_dev = &priv->ec_dev;
 611	struct ec_xfer_mock *mock;
 612	int ret;
 613
 614	/* For cros_ec_get_proto_info() without passthru. */
 615	{
 616		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 617		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 618	}
 619
 620	/* For cros_ec_get_proto_info_legacy(). */
 621	{
 622		mock = cros_kunit_ec_xfer_mock_addx(test, -EIO, EC_RES_SUCCESS, 0);
 623		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 624	}
 625
 626	cros_ec_proto_test_query_all_pretest(test);
 627	ret = cros_ec_query_all(ec_dev);
 628	KUNIT_EXPECT_EQ(test, ret, -EIO);
 629	KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 630
 631	/* For cros_ec_get_proto_info() without passthru. */
 632	{
 633		mock = cros_kunit_ec_xfer_mock_next();
 634		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 635
 636		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 637		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 638		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 639				sizeof(struct ec_response_get_protocol_info));
 640		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 641	}
 642
 643	/* For cros_ec_get_proto_info_legacy(). */
 644	{
 645		mock = cros_kunit_ec_xfer_mock_next();
 646		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 647
 648		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 649		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 650		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 651		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
 652	}
 653}
 654
 655static void cros_ec_proto_test_query_all_legacy_return_error(struct kunit *test)
 656{
 657	struct cros_ec_proto_test_priv *priv = test->priv;
 658	struct cros_ec_device *ec_dev = &priv->ec_dev;
 659	struct ec_xfer_mock *mock;
 660	int ret;
 661
 662	/* For cros_ec_get_proto_info() without passthru. */
 663	{
 664		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 665		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 666	}
 667
 668	/* For cros_ec_get_proto_info_legacy(). */
 669	{
 670		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 671		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 672	}
 673
 674	cros_ec_proto_test_query_all_pretest(test);
 675	ret = cros_ec_query_all(ec_dev);
 676	KUNIT_EXPECT_EQ(test, ret, -EOPNOTSUPP);
 677	KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 678
 679	/* For cros_ec_get_proto_info() without passthru. */
 680	{
 681		mock = cros_kunit_ec_xfer_mock_next();
 682		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 683
 684		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 685		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 686		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 687				sizeof(struct ec_response_get_protocol_info));
 688		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 689	}
 690
 691	/* For cros_ec_get_proto_info_legacy(). */
 692	{
 693		mock = cros_kunit_ec_xfer_mock_next();
 694		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 695
 696		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 697		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 698		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 699		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
 700	}
 701}
 702
 703static void cros_ec_proto_test_query_all_legacy_data_error(struct kunit *test)
 704{
 705	struct cros_ec_proto_test_priv *priv = test->priv;
 706	struct cros_ec_device *ec_dev = &priv->ec_dev;
 707	struct ec_xfer_mock *mock;
 708	int ret;
 709
 710	/* For cros_ec_get_proto_info() without passthru. */
 711	{
 712		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 713		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 714	}
 715
 716	/* For cros_ec_get_proto_info_legacy(). */
 717	{
 718		struct ec_response_hello *data;
 719
 720		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 721		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 722
 723		data = (struct ec_response_hello *)mock->o_data;
 724		data->out_data = 0xbeefbfbf;
 725	}
 726
 727	cros_ec_proto_test_query_all_pretest(test);
 728	ret = cros_ec_query_all(ec_dev);
 729	KUNIT_EXPECT_EQ(test, ret, -EBADMSG);
 730	KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 731
 732	/* For cros_ec_get_proto_info() without passthru. */
 733	{
 734		mock = cros_kunit_ec_xfer_mock_next();
 735		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 736
 737		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 738		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 739		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 740				sizeof(struct ec_response_get_protocol_info));
 741		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 742	}
 743
 744	/* For cros_ec_get_proto_info_legacy(). */
 745	{
 746		mock = cros_kunit_ec_xfer_mock_next();
 747		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 748
 749		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 750		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 751		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 752		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
 753	}
 754}
 755
 756static void cros_ec_proto_test_query_all_legacy_return0(struct kunit *test)
 757{
 758	struct cros_ec_proto_test_priv *priv = test->priv;
 759	struct cros_ec_device *ec_dev = &priv->ec_dev;
 760	struct ec_xfer_mock *mock;
 761	int ret;
 762
 763	/* For cros_ec_get_proto_info() without passthru. */
 764	{
 765		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 766		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 767	}
 768
 769	/* For cros_ec_get_proto_info_legacy(). */
 770	{
 771		mock = cros_kunit_ec_xfer_mock_add(test, 0);
 772		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 773	}
 774
 775	cros_ec_proto_test_query_all_pretest(test);
 776	ret = cros_ec_query_all(ec_dev);
 777	KUNIT_EXPECT_EQ(test, ret, -EPROTO);
 778	KUNIT_EXPECT_EQ(test, ec_dev->proto_version, EC_PROTO_VERSION_UNKNOWN);
 779
 780	/* For cros_ec_get_proto_info() without passthru. */
 781	{
 782		mock = cros_kunit_ec_xfer_mock_next();
 783		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 784
 785		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 786		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 787		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 788				sizeof(struct ec_response_get_protocol_info));
 789		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 790	}
 791
 792	/* For cros_ec_get_proto_info_legacy(). */
 793	{
 794		mock = cros_kunit_ec_xfer_mock_next();
 795		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 796
 797		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 798		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
 799		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_hello));
 800		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_hello));
 801	}
 802}
 803
 804static void cros_ec_proto_test_query_all_no_mkbp(struct kunit *test)
 805{
 806	struct cros_ec_proto_test_priv *priv = test->priv;
 807	struct cros_ec_device *ec_dev = &priv->ec_dev;
 808	struct ec_xfer_mock *mock;
 809	int ret;
 810
 811	/* Set some garbage bytes. */
 812	ec_dev->mkbp_event_supported = 0xbf;
 813
 814	/* For cros_ec_get_proto_info() without passthru. */
 815	{
 816		struct ec_response_get_protocol_info *data;
 817
 818		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 819		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 820
 821		/*
 822		 * Although it doesn't check the value, provides valid sizes so that
 823		 * cros_ec_query_all() allocates din and dout correctly.
 824		 */
 825		data = (struct ec_response_get_protocol_info *)mock->o_data;
 826		data->max_request_packet_size = 0xbe;
 827		data->max_response_packet_size = 0xef;
 828	}
 829
 830	/* For cros_ec_get_proto_info() with passthru. */
 831	{
 832		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 833		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 834	}
 835
 836	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 837	{
 838		struct ec_response_get_cmd_versions *data;
 839
 840		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 841		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 842
 843		data = (struct ec_response_get_cmd_versions *)mock->o_data;
 844		data->version_mask = 0;
 845	}
 846
 847	cros_ec_proto_test_query_all_pretest(test);
 848	ret = cros_ec_query_all(ec_dev);
 849	KUNIT_EXPECT_EQ(test, ret, 0);
 850
 851	/* For cros_ec_get_proto_info() without passthru. */
 852	{
 853		mock = cros_kunit_ec_xfer_mock_next();
 854		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 855
 856		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 857		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 858		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 859				sizeof(struct ec_response_get_protocol_info));
 860		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 861	}
 862
 863	/* For cros_ec_get_proto_info() with passthru. */
 864	{
 865		mock = cros_kunit_ec_xfer_mock_next();
 866		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 867
 868		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 869		KUNIT_EXPECT_EQ(test, mock->msg.command,
 870				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
 871				EC_CMD_GET_PROTOCOL_INFO);
 872		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 873				sizeof(struct ec_response_get_protocol_info));
 874		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 875	}
 876
 877	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 878	{
 879		struct ec_params_get_cmd_versions *data;
 880
 881		mock = cros_kunit_ec_xfer_mock_next();
 882		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 883
 884		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 885		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
 886		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 887				sizeof(struct ec_response_get_cmd_versions));
 888		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 889
 890		data = (struct ec_params_get_cmd_versions *)mock->i_data;
 891		KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 892
 893		KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
 894	}
 895}
 896
 897static void cros_ec_proto_test_query_all_no_mkbp_return_error(struct kunit *test)
 898{
 899	struct cros_ec_proto_test_priv *priv = test->priv;
 900	struct cros_ec_device *ec_dev = &priv->ec_dev;
 901	struct ec_xfer_mock *mock;
 902	int ret;
 903
 904	/* Set some garbage bytes. */
 905	ec_dev->mkbp_event_supported = 0xbf;
 906
 907	/* For cros_ec_get_proto_info() without passthru. */
 908	{
 909		struct ec_response_get_protocol_info *data;
 910
 911		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
 912		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 913
 914		/*
 915		 * Although it doesn't check the value, provides valid sizes so that
 916		 * cros_ec_query_all() allocates din and dout correctly.
 917		 */
 918		data = (struct ec_response_get_protocol_info *)mock->o_data;
 919		data->max_request_packet_size = 0xbe;
 920		data->max_response_packet_size = 0xef;
 921	}
 922
 923	/* For cros_ec_get_proto_info() with passthru. */
 924	{
 925		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 926		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 927	}
 928
 929	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 930	{
 931		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
 932		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
 933	}
 934
 935	cros_ec_proto_test_query_all_pretest(test);
 936	ret = cros_ec_query_all(ec_dev);
 937	KUNIT_EXPECT_EQ(test, ret, 0);
 938
 939	/* For cros_ec_get_proto_info() without passthru. */
 940	{
 941		mock = cros_kunit_ec_xfer_mock_next();
 942		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 943
 944		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 945		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
 946		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 947				sizeof(struct ec_response_get_protocol_info));
 948		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 949	}
 950
 951	/* For cros_ec_get_proto_info() with passthru. */
 952	{
 953		mock = cros_kunit_ec_xfer_mock_next();
 954		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 955
 956		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 957		KUNIT_EXPECT_EQ(test, mock->msg.command,
 958				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
 959				EC_CMD_GET_PROTOCOL_INFO);
 960		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 961				sizeof(struct ec_response_get_protocol_info));
 962		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
 963	}
 964
 965	/* For cros_ec_get_host_command_version_mask() for MKBP. */
 966	{
 967		struct ec_params_get_cmd_versions *data;
 968
 969		mock = cros_kunit_ec_xfer_mock_next();
 970		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
 971
 972		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
 973		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
 974		KUNIT_EXPECT_EQ(test, mock->msg.insize,
 975				sizeof(struct ec_response_get_cmd_versions));
 976		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
 977
 978		data = (struct ec_params_get_cmd_versions *)mock->i_data;
 979		KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
 980
 981		KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
 982	}
 983}
 984
 985static void cros_ec_proto_test_query_all_no_mkbp_return0(struct kunit *test)
 986{
 987	struct cros_ec_proto_test_priv *priv = test->priv;
 988	struct cros_ec_device *ec_dev = &priv->ec_dev;
 989	struct ec_xfer_mock *mock;
 990	int ret;
 991
 992	/* Set some garbage bytes. */
 993	ec_dev->mkbp_event_supported = 0xbf;
 994
 995	/* For cros_ec_get_proto_info() without passthru. */
 996	{
 997		struct ec_response_get_protocol_info *data;
 998
 999		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1000		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1001
1002		/*
1003		 * Although it doesn't check the value, provides valid sizes so that
1004		 * cros_ec_query_all() allocates din and dout correctly.
1005		 */
1006		data = (struct ec_response_get_protocol_info *)mock->o_data;
1007		data->max_request_packet_size = 0xbe;
1008		data->max_response_packet_size = 0xef;
1009	}
1010
1011	/* For cros_ec_get_proto_info() with passthru. */
1012	{
1013		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1014		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1015	}
1016
1017	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1018	{
1019		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1020		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1021	}
1022
1023	cros_ec_proto_test_query_all_pretest(test);
1024	ret = cros_ec_query_all(ec_dev);
1025	KUNIT_EXPECT_EQ(test, ret, 0);
1026
1027	/* For cros_ec_get_proto_info() without passthru. */
1028	{
1029		mock = cros_kunit_ec_xfer_mock_next();
1030		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1031
1032		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1033		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
1034		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1035				sizeof(struct ec_response_get_protocol_info));
1036		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1037	}
1038
1039	/* For cros_ec_get_proto_info() with passthru. */
1040	{
1041		mock = cros_kunit_ec_xfer_mock_next();
1042		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1043
1044		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1045		KUNIT_EXPECT_EQ(test, mock->msg.command,
1046				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
1047				EC_CMD_GET_PROTOCOL_INFO);
1048		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1049				sizeof(struct ec_response_get_protocol_info));
1050		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1051	}
1052
1053	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1054	{
1055		struct ec_params_get_cmd_versions *data;
1056
1057		mock = cros_kunit_ec_xfer_mock_next();
1058		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1059
1060		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1061		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1062		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1063				sizeof(struct ec_response_get_cmd_versions));
1064		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
1065
1066		data = (struct ec_params_get_cmd_versions *)mock->i_data;
1067		KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT);
1068
1069		KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0);
1070	}
1071}
1072
1073static void cros_ec_proto_test_query_all_no_host_sleep(struct kunit *test)
1074{
1075	struct cros_ec_proto_test_priv *priv = test->priv;
1076	struct cros_ec_device *ec_dev = &priv->ec_dev;
1077	struct ec_xfer_mock *mock;
1078	int ret;
1079
1080	/* Set some garbage bytes. */
1081	ec_dev->host_sleep_v1 = true;
1082
1083	/* For cros_ec_get_proto_info() without passthru. */
1084	{
1085		struct ec_response_get_protocol_info *data;
1086
1087		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1088		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1089
1090		/*
1091		 * Although it doesn't check the value, provides valid sizes so that
1092		 * cros_ec_query_all() allocates din and dout correctly.
1093		 */
1094		data = (struct ec_response_get_protocol_info *)mock->o_data;
1095		data->max_request_packet_size = 0xbe;
1096		data->max_response_packet_size = 0xef;
1097	}
1098
1099	/* For cros_ec_get_proto_info() with passthru. */
1100	{
1101		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1102		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1103	}
1104
1105	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1106	{
1107		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1108		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1109	}
1110
1111	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1112	{
1113		struct ec_response_get_cmd_versions *data;
1114
1115		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1116		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1117
1118		data = (struct ec_response_get_cmd_versions *)mock->o_data;
1119		data->version_mask = 0;
1120	}
1121
1122	cros_ec_proto_test_query_all_pretest(test);
1123	ret = cros_ec_query_all(ec_dev);
1124	KUNIT_EXPECT_EQ(test, ret, 0);
1125
1126	/* For cros_ec_get_proto_info() without passthru. */
1127	{
1128		mock = cros_kunit_ec_xfer_mock_next();
1129		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1130
1131		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1132		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
1133		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1134				sizeof(struct ec_response_get_protocol_info));
1135		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1136	}
1137
1138	/* For cros_ec_get_proto_info() with passthru. */
1139	{
1140		mock = cros_kunit_ec_xfer_mock_next();
1141		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1142
1143		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1144		KUNIT_EXPECT_EQ(test, mock->msg.command,
1145				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
1146				EC_CMD_GET_PROTOCOL_INFO);
1147		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1148				sizeof(struct ec_response_get_protocol_info));
1149		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1150	}
1151
1152	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1153	{
1154		mock = cros_kunit_ec_xfer_mock_next();
1155		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1156
1157		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1158		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1159		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1160				sizeof(struct ec_response_get_cmd_versions));
1161		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1162	}
1163
1164	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1165	{
1166		mock = cros_kunit_ec_xfer_mock_next();
1167		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1168
1169		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1170		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1171		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1172				sizeof(struct ec_response_get_cmd_versions));
1173		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1174
1175		KUNIT_EXPECT_FALSE(test, ec_dev->host_sleep_v1);
1176	}
1177}
1178
1179static void cros_ec_proto_test_query_all_no_host_sleep_return0(struct kunit *test)
1180{
1181	struct cros_ec_proto_test_priv *priv = test->priv;
1182	struct cros_ec_device *ec_dev = &priv->ec_dev;
1183	struct ec_xfer_mock *mock;
1184	int ret;
1185
1186	/* Set some garbage bytes. */
1187	ec_dev->host_sleep_v1 = true;
1188
1189	/* For cros_ec_get_proto_info() without passthru. */
1190	{
1191		struct ec_response_get_protocol_info *data;
1192
1193		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1194		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1195
1196		/*
1197		 * Although it doesn't check the value, provides valid sizes so that
1198		 * cros_ec_query_all() allocates din and dout correctly.
1199		 */
1200		data = (struct ec_response_get_protocol_info *)mock->o_data;
1201		data->max_request_packet_size = 0xbe;
1202		data->max_response_packet_size = 0xef;
1203	}
1204
1205	/* For cros_ec_get_proto_info() with passthru. */
1206	{
1207		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1208		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1209	}
1210
1211	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1212	{
1213		struct ec_response_get_cmd_versions *data;
1214
1215		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1216		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1217
1218		/* In order to pollute next cros_ec_get_host_command_version_mask(). */
1219		data = (struct ec_response_get_cmd_versions *)mock->o_data;
1220		data->version_mask = 0xbeef;
1221	}
1222
1223	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1224	{
1225		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1226		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1227	}
1228
1229	cros_ec_proto_test_query_all_pretest(test);
1230	ret = cros_ec_query_all(ec_dev);
1231	KUNIT_EXPECT_EQ(test, ret, 0);
1232
1233	/* For cros_ec_get_proto_info() without passthru. */
1234	{
1235		mock = cros_kunit_ec_xfer_mock_next();
1236		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1237
1238		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1239		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
1240		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1241				sizeof(struct ec_response_get_protocol_info));
1242		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1243	}
1244
1245	/* For cros_ec_get_proto_info() with passthru. */
1246	{
1247		mock = cros_kunit_ec_xfer_mock_next();
1248		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1249
1250		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1251		KUNIT_EXPECT_EQ(test, mock->msg.command,
1252				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
1253				EC_CMD_GET_PROTOCOL_INFO);
1254		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1255				sizeof(struct ec_response_get_protocol_info));
1256		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1257	}
1258
1259	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1260	{
1261		mock = cros_kunit_ec_xfer_mock_next();
1262		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1263
1264		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1265		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1266		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1267				sizeof(struct ec_response_get_cmd_versions));
1268		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1269	}
1270
1271	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1272	{
1273		mock = cros_kunit_ec_xfer_mock_next();
1274		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1275
1276		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1277		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1278		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1279				sizeof(struct ec_response_get_cmd_versions));
1280		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1281
1282		KUNIT_EXPECT_FALSE(test, ec_dev->host_sleep_v1);
1283	}
1284}
1285
1286static void cros_ec_proto_test_query_all_default_wake_mask_return_error(struct kunit *test)
1287{
1288	struct cros_ec_proto_test_priv *priv = test->priv;
1289	struct cros_ec_device *ec_dev = &priv->ec_dev;
1290	struct ec_xfer_mock *mock;
1291	int ret;
1292
1293	/* Set some garbage bytes. */
1294	ec_dev->host_event_wake_mask = U32_MAX;
1295
1296	/* For cros_ec_get_proto_info() without passthru. */
1297	{
1298		struct ec_response_get_protocol_info *data;
1299
1300		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1301		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1302
1303		/*
1304		 * Although it doesn't check the value, provides valid sizes so that
1305		 * cros_ec_query_all() allocates din and dout correctly.
1306		 */
1307		data = (struct ec_response_get_protocol_info *)mock->o_data;
1308		data->max_request_packet_size = 0xbe;
1309		data->max_response_packet_size = 0xef;
1310	}
1311
1312	/* For cros_ec_get_proto_info() with passthru. */
1313	{
1314		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1315		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1316	}
1317
1318	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1319	{
1320		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1321		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1322	}
1323
1324	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1325	{
1326		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1327		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1328	}
1329
1330	/* For cros_ec_get_host_event_wake_mask(). */
1331	{
1332		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1333		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1334	}
1335
1336	cros_ec_proto_test_query_all_pretest(test);
1337	ret = cros_ec_query_all(ec_dev);
1338	KUNIT_EXPECT_EQ(test, ret, 0);
1339
1340	/* For cros_ec_get_proto_info() without passthru. */
1341	{
1342		mock = cros_kunit_ec_xfer_mock_next();
1343		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1344
1345		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1346		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
1347		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1348				sizeof(struct ec_response_get_protocol_info));
1349		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1350	}
1351
1352	/* For cros_ec_get_proto_info() with passthru. */
1353	{
1354		mock = cros_kunit_ec_xfer_mock_next();
1355		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1356
1357		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1358		KUNIT_EXPECT_EQ(test, mock->msg.command,
1359				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
1360				EC_CMD_GET_PROTOCOL_INFO);
1361		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1362				sizeof(struct ec_response_get_protocol_info));
1363		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1364	}
1365
1366	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1367	{
1368		mock = cros_kunit_ec_xfer_mock_next();
1369		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1370
1371		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1372		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1373		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1374				sizeof(struct ec_response_get_cmd_versions));
1375		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1376	}
1377
1378	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1379	{
1380		mock = cros_kunit_ec_xfer_mock_next();
1381		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1382
1383		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1384		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1385		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1386				sizeof(struct ec_response_get_cmd_versions));
1387		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1388	}
1389
1390	/* For cros_ec_get_host_event_wake_mask(). */
1391	{
1392		u32 mask;
1393
1394		mock = cros_kunit_ec_xfer_mock_next();
1395		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1396
1397		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1398		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
1399		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
1400		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1401
1402		mask = ec_dev->host_event_wake_mask;
1403		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED), 0);
1404		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED), 0);
1405		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW), 0);
1406		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL), 0);
1407		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY), 0);
1408		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU), 0);
1409		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS), 0);
1410	}
1411}
1412
1413static void cros_ec_proto_test_query_all_default_wake_mask_return0(struct kunit *test)
1414{
1415	struct cros_ec_proto_test_priv *priv = test->priv;
1416	struct cros_ec_device *ec_dev = &priv->ec_dev;
1417	struct ec_xfer_mock *mock;
1418	int ret;
1419
1420	/* Set some garbage bytes. */
1421	ec_dev->host_event_wake_mask = U32_MAX;
1422
1423	/* For cros_ec_get_proto_info() without passthru. */
1424	{
1425		struct ec_response_get_protocol_info *data;
1426
1427		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1428		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1429
1430		/*
1431		 * Although it doesn't check the value, provides valid sizes so that
1432		 * cros_ec_query_all() allocates din and dout correctly.
1433		 */
1434		data = (struct ec_response_get_protocol_info *)mock->o_data;
1435		data->max_request_packet_size = 0xbe;
1436		data->max_response_packet_size = 0xef;
1437	}
1438
1439	/* For cros_ec_get_proto_info() with passthru. */
1440	{
1441		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1442		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1443	}
1444
1445	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1446	{
1447		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1448		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1449	}
1450
1451	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1452	{
1453		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1454		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1455	}
1456
1457	/* For get_host_event_wake_mask(). */
1458	{
1459		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1460		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1461	}
1462
1463	cros_ec_proto_test_query_all_pretest(test);
1464	ret = cros_ec_query_all(ec_dev);
1465	KUNIT_EXPECT_EQ(test, ret, 0);
1466
1467	/* For cros_ec_get_proto_info() without passthru. */
1468	{
1469		mock = cros_kunit_ec_xfer_mock_next();
1470		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1471
1472		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1473		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO);
1474		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1475				sizeof(struct ec_response_get_protocol_info));
1476		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1477	}
1478
1479	/* For cros_ec_get_proto_info() with passthru. */
1480	{
1481		mock = cros_kunit_ec_xfer_mock_next();
1482		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1483
1484		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1485		KUNIT_EXPECT_EQ(test, mock->msg.command,
1486				EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) |
1487				EC_CMD_GET_PROTOCOL_INFO);
1488		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1489				sizeof(struct ec_response_get_protocol_info));
1490		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1491	}
1492
1493	/* For cros_ec_get_host_command_version_mask() for MKBP. */
1494	{
1495		mock = cros_kunit_ec_xfer_mock_next();
1496		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1497
1498		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1499		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1500		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1501				sizeof(struct ec_response_get_cmd_versions));
1502		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1503	}
1504
1505	/* For cros_ec_get_host_command_version_mask() for host sleep v1. */
1506	{
1507		mock = cros_kunit_ec_xfer_mock_next();
1508		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1509
1510		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1511		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS);
1512		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1513				sizeof(struct ec_response_get_cmd_versions));
1514		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions));
1515	}
1516
1517	/* For get_host_event_wake_mask(). */
1518	{
1519		u32 mask;
1520
1521		mock = cros_kunit_ec_xfer_mock_next();
1522		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1523
1524		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1525		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HOST_EVENT_GET_WAKE_MASK);
1526		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_host_event_mask));
1527		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1528
1529		mask = ec_dev->host_event_wake_mask;
1530		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED), 0);
1531		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED), 0);
1532		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW), 0);
1533		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL), 0);
1534		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY), 0);
1535		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU), 0);
1536		KUNIT_EXPECT_EQ(test, mask & EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS), 0);
1537	}
1538}
1539
1540static void cros_ec_proto_test_cmd_xfer_normal(struct kunit *test)
1541{
1542	struct cros_ec_proto_test_priv *priv = test->priv;
1543	struct cros_ec_device *ec_dev = &priv->ec_dev;
1544	struct ec_xfer_mock *mock;
1545	int ret;
1546	DEFINE_RAW_FLEX(struct cros_ec_command, buf, data, 0x100);
1547
1548	ec_dev->max_request = 0xff;
1549	ec_dev->max_response = 0xee;
1550	ec_dev->max_passthru = 0xdd;
1551
1552	buf->version = 0;
1553	buf->command = EC_CMD_HELLO;
1554	buf->insize = 4;
1555	buf->outsize = 2;
1556	buf->data[0] = 0x55;
1557	buf->data[1] = 0xaa;
1558
1559	{
1560		u8 *data;
1561
1562		mock = cros_kunit_ec_xfer_mock_add(test, 4);
1563		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1564
1565		data = (u8 *)mock->o_data;
1566		data[0] = 0xaa;
1567		data[1] = 0x55;
1568		data[2] = 0xcc;
1569		data[3] = 0x33;
1570	}
1571
1572	ret = cros_ec_cmd_xfer(ec_dev, buf);
1573	KUNIT_EXPECT_EQ(test, ret, 4);
1574
1575	{
1576		u8 *data;
1577
1578		mock = cros_kunit_ec_xfer_mock_next();
1579		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1580
1581		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1582		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
1583		KUNIT_EXPECT_EQ(test, mock->msg.insize, 4);
1584		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 2);
1585
1586		data = (u8 *)mock->i_data;
1587		KUNIT_EXPECT_EQ(test, data[0], 0x55);
1588		KUNIT_EXPECT_EQ(test, data[1], 0xaa);
1589
1590		KUNIT_EXPECT_EQ(test, buf->data[0], 0xaa);
1591		KUNIT_EXPECT_EQ(test, buf->data[1], 0x55);
1592		KUNIT_EXPECT_EQ(test, buf->data[2], 0xcc);
1593		KUNIT_EXPECT_EQ(test, buf->data[3], 0x33);
1594	}
1595}
1596
1597static void cros_ec_proto_test_cmd_xfer_excess_msg_insize(struct kunit *test)
1598{
1599	struct cros_ec_proto_test_priv *priv = test->priv;
1600	struct cros_ec_device *ec_dev = &priv->ec_dev;
1601	struct ec_xfer_mock *mock;
1602	int ret;
1603	DEFINE_RAW_FLEX(struct cros_ec_command, buf, data, 0x100);
1604
1605	ec_dev->max_request = 0xff;
1606	ec_dev->max_response = 0xee;
1607	ec_dev->max_passthru = 0xdd;
1608
1609	buf->version = 0;
1610	buf->command = EC_CMD_HELLO;
1611	buf->insize = 0xee + 1;
1612	buf->outsize = 2;
1613
1614	{
1615		mock = cros_kunit_ec_xfer_mock_add(test, 0xcc);
1616		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1617	}
1618
1619	ret = cros_ec_cmd_xfer(ec_dev, buf);
1620	KUNIT_EXPECT_EQ(test, ret, 0xcc);
1621
1622	{
1623		mock = cros_kunit_ec_xfer_mock_next();
1624		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1625
1626		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1627		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_HELLO);
1628		KUNIT_EXPECT_EQ(test, mock->msg.insize, 0xee);
1629		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 2);
1630	}
1631}
1632
1633static void cros_ec_proto_test_cmd_xfer_excess_msg_outsize_without_passthru(struct kunit *test)
1634{
1635	struct cros_ec_proto_test_priv *priv = test->priv;
1636	struct cros_ec_device *ec_dev = &priv->ec_dev;
1637	int ret;
1638	DEFINE_RAW_FLEX(struct cros_ec_command, buf, data, 0x100);
1639
1640	ec_dev->max_request = 0xff;
1641	ec_dev->max_response = 0xee;
1642	ec_dev->max_passthru = 0xdd;
1643
1644	buf->version = 0;
1645	buf->command = EC_CMD_HELLO;
1646	buf->insize = 4;
1647	buf->outsize = 0xff + 1;
1648
1649	ret = cros_ec_cmd_xfer(ec_dev, buf);
1650	KUNIT_EXPECT_EQ(test, ret, -EMSGSIZE);
1651}
1652
1653static void cros_ec_proto_test_cmd_xfer_excess_msg_outsize_with_passthru(struct kunit *test)
1654{
1655	struct cros_ec_proto_test_priv *priv = test->priv;
1656	struct cros_ec_device *ec_dev = &priv->ec_dev;
1657	int ret;
1658	DEFINE_RAW_FLEX(struct cros_ec_command, buf, data, 0x100);
1659
1660	ec_dev->max_request = 0xff;
1661	ec_dev->max_response = 0xee;
1662	ec_dev->max_passthru = 0xdd;
1663
1664	buf->version = 0;
1665	buf->command = EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) + EC_CMD_HELLO;
1666	buf->insize = 4;
1667	buf->outsize = 0xdd + 1;
1668
1669	ret = cros_ec_cmd_xfer(ec_dev, buf);
1670	KUNIT_EXPECT_EQ(test, ret, -EMSGSIZE);
1671}
1672
1673static void cros_ec_proto_test_cmd_xfer_protocol_v3_normal(struct kunit *test)
1674{
1675	struct cros_ec_proto_test_priv *priv = test->priv;
1676	struct cros_ec_device *ec_dev = &priv->ec_dev;
1677	int ret;
1678	struct cros_ec_command msg;
1679
1680	memset(&msg, 0, sizeof(msg));
1681
1682	ec_dev->proto_version = 3;
1683	ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
1684	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1685
1686	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1687	KUNIT_EXPECT_EQ(test, ret, 0);
1688
1689	KUNIT_EXPECT_EQ(test, cros_kunit_ec_cmd_xfer_mock_called, 0);
1690	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 1);
1691}
1692
1693static void cros_ec_proto_test_cmd_xfer_protocol_v3_no_op(struct kunit *test)
1694{
1695	struct cros_ec_proto_test_priv *priv = test->priv;
1696	struct cros_ec_device *ec_dev = &priv->ec_dev;
1697	int ret;
1698	struct cros_ec_command msg;
1699
1700	memset(&msg, 0, sizeof(msg));
1701
1702	ec_dev->proto_version = 3;
1703	ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
1704	ec_dev->pkt_xfer = NULL;
1705
1706	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1707	KUNIT_EXPECT_EQ(test, ret, -EIO);
1708}
1709
1710static void cros_ec_proto_test_cmd_xfer_protocol_v2_normal(struct kunit *test)
1711{
1712	struct cros_ec_proto_test_priv *priv = test->priv;
1713	struct cros_ec_device *ec_dev = &priv->ec_dev;
1714	int ret;
1715	struct cros_ec_command msg;
1716
1717	memset(&msg, 0, sizeof(msg));
1718
1719	ec_dev->proto_version = 2;
1720	ec_dev->cmd_xfer = cros_kunit_ec_cmd_xfer_mock;
1721	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1722
1723	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1724	KUNIT_EXPECT_EQ(test, ret, 0);
1725
1726	KUNIT_EXPECT_EQ(test, cros_kunit_ec_cmd_xfer_mock_called, 1);
1727	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 0);
1728}
1729
1730static void cros_ec_proto_test_cmd_xfer_protocol_v2_no_op(struct kunit *test)
1731{
1732	struct cros_ec_proto_test_priv *priv = test->priv;
1733	struct cros_ec_device *ec_dev = &priv->ec_dev;
1734	int ret;
1735	struct cros_ec_command msg;
1736
1737	memset(&msg, 0, sizeof(msg));
1738
1739	ec_dev->proto_version = 2;
1740	ec_dev->cmd_xfer = NULL;
1741	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1742
1743	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1744	KUNIT_EXPECT_EQ(test, ret, -EIO);
1745}
1746
1747static void cros_ec_proto_test_cmd_xfer_in_progress_normal(struct kunit *test)
1748{
1749	struct cros_ec_proto_test_priv *priv = test->priv;
1750	struct cros_ec_device *ec_dev = &priv->ec_dev;
1751	struct ec_xfer_mock *mock;
1752	int ret;
1753	struct cros_ec_command msg;
1754
1755	memset(&msg, 0, sizeof(msg));
1756
1757	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1758
1759	/* For the first host command to return EC_RES_IN_PROGRESS. */
1760	{
1761		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1762		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1763	}
1764
1765	/* For EC_CMD_GET_COMMS_STATUS. */
1766	{
1767		struct ec_response_get_comms_status *data;
1768
1769		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1770		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1771
1772		data = (struct ec_response_get_comms_status *)mock->o_data;
1773		data->flags = 0;
1774	}
1775
1776	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1777	KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_comms_status));
1778
1779	KUNIT_EXPECT_EQ(test, msg.result, EC_RES_SUCCESS);
1780
1781	/* For the first host command to return EC_RES_IN_PROGRESS. */
1782	{
1783		mock = cros_kunit_ec_xfer_mock_next();
1784		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1785	}
1786
1787	/* For EC_CMD_GET_COMMS_STATUS. */
1788	{
1789		mock = cros_kunit_ec_xfer_mock_next();
1790		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
1791
1792		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
1793		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_COMMS_STATUS);
1794		KUNIT_EXPECT_EQ(test, mock->msg.insize,
1795				sizeof(struct ec_response_get_comms_status));
1796		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
1797	}
1798
1799	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
1800}
1801
1802static void cros_ec_proto_test_cmd_xfer_in_progress_retries_eagain(struct kunit *test)
1803{
1804	struct cros_ec_proto_test_priv *priv = test->priv;
1805	struct cros_ec_device *ec_dev = &priv->ec_dev;
1806	struct ec_xfer_mock *mock;
1807	int ret;
1808	struct cros_ec_command msg;
1809
1810	memset(&msg, 0, sizeof(msg));
1811
1812	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1813
1814	/* For the first host command to return EC_RES_IN_PROGRESS. */
1815	{
1816		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1817		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1818	}
1819
1820	/* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
1821	cros_kunit_ec_xfer_mock_default_ret = -EAGAIN;
1822
1823	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1824	KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
1825
1826	/* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
1827	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 51);
1828}
1829
1830static void cros_ec_proto_test_cmd_xfer_in_progress_retries_status_processing(struct kunit *test)
1831{
1832	struct cros_ec_proto_test_priv *priv = test->priv;
1833	struct cros_ec_device *ec_dev = &priv->ec_dev;
1834	struct ec_xfer_mock *mock;
1835	int ret;
1836	struct cros_ec_command msg;
1837
1838	memset(&msg, 0, sizeof(msg));
1839
1840	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1841
1842	/* For the first host command to return EC_RES_IN_PROGRESS. */
1843	{
1844		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1845		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1846	}
1847
1848	/* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
1849	{
1850		struct ec_response_get_comms_status *data;
1851		int i;
1852
1853		for (i = 0; i < 50; ++i) {
1854			mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
1855			KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1856
1857			data = (struct ec_response_get_comms_status *)mock->o_data;
1858			data->flags |= EC_COMMS_STATUS_PROCESSING;
1859		}
1860	}
1861
1862	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1863	KUNIT_EXPECT_EQ(test, ret, -EAGAIN);
1864
1865	/* For EC_CMD_GET_COMMS_STATUS EC_COMMAND_RETRIES times. */
1866	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 51);
1867}
1868
1869static void cros_ec_proto_test_cmd_xfer_in_progress_xfer_error(struct kunit *test)
1870{
1871	struct cros_ec_proto_test_priv *priv = test->priv;
1872	struct cros_ec_device *ec_dev = &priv->ec_dev;
1873	struct ec_xfer_mock *mock;
1874	int ret;
1875	struct cros_ec_command msg;
1876
1877	memset(&msg, 0, sizeof(msg));
1878
1879	/* For the first host command to return EC_RES_IN_PROGRESS. */
1880	{
1881		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1882		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1883	}
1884
1885	/* For EC_CMD_GET_COMMS_STATUS. */
1886	{
1887		mock = cros_kunit_ec_xfer_mock_addx(test, -EIO, EC_RES_SUCCESS, 0);
1888		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1889	}
1890
1891	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1892	KUNIT_EXPECT_EQ(test, ret, -EIO);
1893}
1894
1895static void cros_ec_proto_test_cmd_xfer_in_progress_return_error(struct kunit *test)
1896{
1897	struct cros_ec_proto_test_priv *priv = test->priv;
1898	struct cros_ec_device *ec_dev = &priv->ec_dev;
1899	struct ec_xfer_mock *mock;
1900	int ret;
1901	struct cros_ec_command msg;
1902
1903	memset(&msg, 0, sizeof(msg));
1904
1905	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1906
1907	/* For the first host command to return EC_RES_IN_PROGRESS. */
1908	{
1909		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1910		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1911	}
1912
1913	/* For EC_CMD_GET_COMMS_STATUS. */
1914	{
1915		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0);
1916		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1917	}
1918
1919	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1920	KUNIT_EXPECT_EQ(test, ret, 0);
1921
1922	KUNIT_EXPECT_EQ(test, msg.result, EC_RES_INVALID_COMMAND);
1923
1924	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
1925}
1926
1927static void cros_ec_proto_test_cmd_xfer_in_progress_return0(struct kunit *test)
1928{
1929	struct cros_ec_proto_test_priv *priv = test->priv;
1930	struct cros_ec_device *ec_dev = &priv->ec_dev;
1931	struct ec_xfer_mock *mock;
1932	int ret;
1933	struct cros_ec_command msg;
1934
1935	memset(&msg, 0, sizeof(msg));
1936
1937	ec_dev->pkt_xfer = cros_kunit_ec_pkt_xfer_mock;
1938
1939	/* For the first host command to return EC_RES_IN_PROGRESS. */
1940	{
1941		mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_IN_PROGRESS, 0);
1942		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1943	}
1944
1945	/* For EC_CMD_GET_COMMS_STATUS. */
1946	{
1947		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1948		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1949	}
1950
1951	ret = cros_ec_cmd_xfer(ec_dev, &msg);
1952	KUNIT_EXPECT_EQ(test, ret, -EPROTO);
1953
1954	KUNIT_EXPECT_EQ(test, cros_kunit_ec_pkt_xfer_mock_called, 2);
1955}
1956
1957static void cros_ec_proto_test_cmd_xfer_status_normal(struct kunit *test)
1958{
1959	struct cros_ec_proto_test_priv *priv = test->priv;
1960	struct cros_ec_device *ec_dev = &priv->ec_dev;
1961	struct ec_xfer_mock *mock;
1962	int ret;
1963	struct cros_ec_command msg;
1964
1965	memset(&msg, 0, sizeof(msg));
1966
1967	/* For cros_ec_cmd_xfer(). */
1968	{
1969		mock = cros_kunit_ec_xfer_mock_add(test, 0);
1970		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1971	}
1972
1973	ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
1974	KUNIT_EXPECT_EQ(test, ret, 0);
1975}
1976
1977static void cros_ec_proto_test_cmd_xfer_status_xfer_error(struct kunit *test)
1978{
1979	struct cros_ec_proto_test_priv *priv = test->priv;
1980	struct cros_ec_device *ec_dev = &priv->ec_dev;
1981	struct ec_xfer_mock *mock;
1982	int ret;
1983	struct cros_ec_command msg;
1984
1985	memset(&msg, 0, sizeof(msg));
1986
1987	/* For cros_ec_cmd_xfer(). */
1988	{
1989		mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
1990		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
1991	}
1992
1993	ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
1994	KUNIT_EXPECT_EQ(test, ret, -EPROTO);
1995}
1996
1997static void cros_ec_proto_test_cmd_xfer_status_return_error(struct kunit *test)
1998{
1999	struct cros_ec_proto_test_priv *priv = test->priv;
2000	struct cros_ec_device *ec_dev = &priv->ec_dev;
2001	struct ec_xfer_mock *mock;
2002	int ret, i;
2003	struct cros_ec_command msg;
2004	static const int map[] = {
2005		[EC_RES_SUCCESS] = 0,
2006		[EC_RES_INVALID_COMMAND] = -EOPNOTSUPP,
2007		[EC_RES_ERROR] = -EIO,
2008		[EC_RES_INVALID_PARAM] = -EINVAL,
2009		[EC_RES_ACCESS_DENIED] = -EACCES,
2010		[EC_RES_INVALID_RESPONSE] = -EPROTO,
2011		[EC_RES_INVALID_VERSION] = -ENOPROTOOPT,
2012		[EC_RES_INVALID_CHECKSUM] = -EBADMSG,
2013		/*
2014		 * EC_RES_IN_PROGRESS is special because cros_ec_send_command() has extra logic to
2015		 * handle it.  Note that default cros_kunit_ec_xfer_mock_default_ret == 0 thus
2016		 * cros_ec_xfer_command() in cros_ec_wait_until_complete() returns 0.  As a result,
2017		 * it returns -EPROTO without calling cros_ec_map_error().
2018		 */
2019		[EC_RES_IN_PROGRESS] = -EPROTO,
2020		[EC_RES_UNAVAILABLE] = -ENODATA,
2021		[EC_RES_TIMEOUT] = -ETIMEDOUT,
2022		[EC_RES_OVERFLOW] = -EOVERFLOW,
2023		[EC_RES_INVALID_HEADER] = -EBADR,
2024		[EC_RES_REQUEST_TRUNCATED] = -EBADR,
2025		[EC_RES_RESPONSE_TOO_BIG] = -EFBIG,
2026		[EC_RES_BUS_ERROR] = -EFAULT,
2027		[EC_RES_BUSY] = -EBUSY,
2028		[EC_RES_INVALID_HEADER_VERSION] = -EBADMSG,
2029		[EC_RES_INVALID_HEADER_CRC] = -EBADMSG,
2030		[EC_RES_INVALID_DATA_CRC] = -EBADMSG,
2031		[EC_RES_DUP_UNAVAILABLE] = -ENODATA,
2032	};
2033
2034	memset(&msg, 0, sizeof(msg));
2035
2036	for (i = 0; i < ARRAY_SIZE(map); ++i) {
2037		mock = cros_kunit_ec_xfer_mock_addx(test, 0, i, 0);
2038		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2039
2040		ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
2041		KUNIT_EXPECT_EQ(test, ret, map[i]);
2042	}
2043}
2044
2045static void cros_ec_proto_test_get_next_event_no_mkbp_event(struct kunit *test)
2046{
2047	struct cros_ec_proto_test_priv *priv = test->priv;
2048	struct cros_ec_device *ec_dev = &priv->ec_dev;
2049	struct ec_xfer_mock *mock;
2050	int ret;
2051	bool wake_event, more_events;
2052
2053	ec_dev->max_request = 0xff;
2054	ec_dev->max_response = 0xee;
2055	ec_dev->mkbp_event_supported = 0;
2056
2057	/* Set some garbage bytes. */
2058	wake_event = false;
2059	more_events = true;
2060
2061	/* For get_keyboard_state_event(). */
2062	{
2063		union ec_response_get_next_data_v3 *data;
2064
2065		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
2066		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2067
2068		data = (union ec_response_get_next_data_v3 *)mock->o_data;
2069		data->host_event = 0xbeef;
2070	}
2071
2072	ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
2073	KUNIT_EXPECT_EQ(test, ret, sizeof(union ec_response_get_next_data_v3));
2074
2075	KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_KEY_MATRIX);
2076	KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.host_event, 0xbeef);
2077
2078	KUNIT_EXPECT_TRUE(test, wake_event);
2079	KUNIT_EXPECT_FALSE(test, more_events);
2080
2081	/* For get_keyboard_state_event(). */
2082	{
2083		mock = cros_kunit_ec_xfer_mock_next();
2084		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2085
2086		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
2087		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MKBP_STATE);
2088		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(union ec_response_get_next_data_v3));
2089		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2090	}
2091}
2092
2093static void cros_ec_proto_test_get_next_event_mkbp_event_ec_suspended(struct kunit *test)
2094{
2095	struct cros_ec_proto_test_priv *priv = test->priv;
2096	struct cros_ec_device *ec_dev = &priv->ec_dev;
2097	int ret;
2098
2099	ec_dev->mkbp_event_supported = 1;
2100	ec_dev->suspended = true;
2101
2102	ret = cros_ec_get_next_event(ec_dev, NULL, NULL);
2103	KUNIT_EXPECT_EQ(test, ret, -EHOSTDOWN);
2104}
2105
2106static void cros_ec_proto_test_get_next_event_mkbp_event_version0(struct kunit *test)
2107{
2108	struct cros_ec_proto_test_priv *priv = test->priv;
2109	struct cros_ec_device *ec_dev = &priv->ec_dev;
2110	struct ec_xfer_mock *mock;
2111	int ret;
2112	bool wake_event, more_events;
2113
2114	ec_dev->max_request = 0xff;
2115	ec_dev->max_response = 0xee;
2116	ec_dev->mkbp_event_supported = 1;
2117
2118	/* Set some garbage bytes. */
2119	wake_event = true;
2120	more_events = false;
2121
2122	/* For get_next_event_xfer(). */
2123	{
2124		struct ec_response_get_next_event *data;
2125
2126		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
2127		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2128
2129		data = (struct ec_response_get_next_event *)mock->o_data;
2130		data->event_type = EC_MKBP_EVENT_SENSOR_FIFO | EC_MKBP_HAS_MORE_EVENTS;
2131		data->data.sysrq = 0xbeef;
2132	}
2133
2134	ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
2135	KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_next_event));
2136
2137	KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_SENSOR_FIFO);
2138	KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.sysrq, 0xbeef);
2139
2140	KUNIT_EXPECT_FALSE(test, wake_event);
2141	KUNIT_EXPECT_TRUE(test, more_events);
2142
2143	/* For get_next_event_xfer(). */
2144	{
2145		mock = cros_kunit_ec_xfer_mock_next();
2146		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2147
2148		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
2149		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
2150		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_get_next_event));
2151		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2152	}
2153}
2154
2155static void cros_ec_proto_test_get_next_event_mkbp_event_version2(struct kunit *test)
2156{
2157	struct cros_ec_proto_test_priv *priv = test->priv;
2158	struct cros_ec_device *ec_dev = &priv->ec_dev;
2159	struct ec_xfer_mock *mock;
2160	int ret;
2161	bool wake_event, more_events;
2162
2163	ec_dev->max_request = 0xff;
2164	ec_dev->max_response = 0xee;
2165	ec_dev->mkbp_event_supported = 3;
2166
2167	/* Set some garbage bytes. */
2168	wake_event = false;
2169	more_events = true;
2170
2171	/* For get_next_event_xfer(). */
2172	{
2173		struct ec_response_get_next_event_v1 *data;
2174
2175		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
2176		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2177
2178		data = (struct ec_response_get_next_event_v1 *)mock->o_data;
2179		data->event_type = EC_MKBP_EVENT_FINGERPRINT;
2180		data->data.sysrq = 0xbeef;
2181	}
2182
2183	ret = cros_ec_get_next_event(ec_dev, &wake_event, &more_events);
2184	KUNIT_EXPECT_EQ(test, ret, sizeof(struct ec_response_get_next_event_v1));
2185
2186	KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_FINGERPRINT);
2187	KUNIT_EXPECT_EQ(test, ec_dev->event_data.data.sysrq, 0xbeef);
2188
2189	KUNIT_EXPECT_TRUE(test, wake_event);
2190	KUNIT_EXPECT_FALSE(test, more_events);
2191
2192	/* For get_next_event_xfer(). */
2193	{
2194		mock = cros_kunit_ec_xfer_mock_next();
2195		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2196
2197		KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
2198		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
2199		KUNIT_EXPECT_EQ(test, mock->msg.insize,
2200				sizeof(struct ec_response_get_next_event_v1));
2201		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2202	}
2203}
2204
2205static void cros_ec_proto_test_get_next_event_mkbp_event_host_event_rtc(struct kunit *test)
2206{
2207	struct cros_ec_proto_test_priv *priv = test->priv;
2208	struct cros_ec_device *ec_dev = &priv->ec_dev;
2209	struct ec_xfer_mock *mock;
2210	int ret;
2211	bool wake_event;
2212	struct ec_response_get_next_event_v1 *data;
2213
2214	ec_dev->max_request = 0xff;
2215	ec_dev->max_response = 0xee;
2216	ec_dev->mkbp_event_supported = 3;
2217	ec_dev->host_event_wake_mask = U32_MAX;
2218
2219	/* Set some garbage bytes. */
2220	wake_event = true;
2221
2222	/* For get_next_event_xfer(). */
2223	{
2224		mock = cros_kunit_ec_xfer_mock_add(test,
2225						   sizeof(data->event_type) +
2226						   sizeof(data->data.host_event));
2227		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2228
2229		data = (struct ec_response_get_next_event_v1 *)mock->o_data;
2230		data->event_type = EC_MKBP_EVENT_HOST_EVENT;
2231		put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC), &data->data.host_event);
2232	}
2233
2234	ret = cros_ec_get_next_event(ec_dev, &wake_event, NULL);
2235	KUNIT_EXPECT_EQ(test, ret, sizeof(data->event_type) + sizeof(data->data.host_event));
2236
2237	KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_HOST_EVENT);
2238
2239	KUNIT_EXPECT_FALSE(test, wake_event);
2240
2241	/* For get_next_event_xfer(). */
2242	{
2243		mock = cros_kunit_ec_xfer_mock_next();
2244		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2245
2246		KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
2247		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
2248		KUNIT_EXPECT_EQ(test, mock->msg.insize,
2249				sizeof(struct ec_response_get_next_event_v1));
2250		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2251	}
2252}
2253
2254static void cros_ec_proto_test_get_next_event_mkbp_event_host_event_masked(struct kunit *test)
2255{
2256	struct cros_ec_proto_test_priv *priv = test->priv;
2257	struct cros_ec_device *ec_dev = &priv->ec_dev;
2258	struct ec_xfer_mock *mock;
2259	int ret;
2260	bool wake_event;
2261	struct ec_response_get_next_event_v1 *data;
2262
2263	ec_dev->max_request = 0xff;
2264	ec_dev->max_response = 0xee;
2265	ec_dev->mkbp_event_supported = 3;
2266	ec_dev->host_event_wake_mask = U32_MAX & ~EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED);
2267
2268	/* Set some garbage bytes. */
2269	wake_event = true;
2270
2271	/* For get_next_event_xfer(). */
2272	{
2273		mock = cros_kunit_ec_xfer_mock_add(test,
2274						   sizeof(data->event_type) +
2275						   sizeof(data->data.host_event));
2276		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2277
2278		data = (struct ec_response_get_next_event_v1 *)mock->o_data;
2279		data->event_type = EC_MKBP_EVENT_HOST_EVENT;
2280		put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED),
2281				   &data->data.host_event);
2282	}
2283
2284	ret = cros_ec_get_next_event(ec_dev, &wake_event, NULL);
2285	KUNIT_EXPECT_EQ(test, ret, sizeof(data->event_type) + sizeof(data->data.host_event));
2286
2287	KUNIT_EXPECT_EQ(test, ec_dev->event_data.event_type, EC_MKBP_EVENT_HOST_EVENT);
2288
2289	KUNIT_EXPECT_FALSE(test, wake_event);
2290
2291	/* For get_next_event_xfer(). */
2292	{
2293		mock = cros_kunit_ec_xfer_mock_next();
2294		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2295
2296		KUNIT_EXPECT_EQ(test, mock->msg.version, 2);
2297		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_NEXT_EVENT);
2298		KUNIT_EXPECT_EQ(test, mock->msg.insize,
2299				sizeof(struct ec_response_get_next_event_v1));
2300		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2301	}
2302}
2303
2304static void cros_ec_proto_test_get_host_event_no_mkbp_event(struct kunit *test)
2305{
2306	struct cros_ec_proto_test_priv *priv = test->priv;
2307	struct cros_ec_device *ec_dev = &priv->ec_dev;
2308	int ret;
2309
2310	ec_dev->mkbp_event_supported = 0;
2311
2312	ret = cros_ec_get_host_event(ec_dev);
2313	KUNIT_EXPECT_EQ(test, ret, 0);
2314}
2315
2316static void cros_ec_proto_test_get_host_event_not_host_event(struct kunit *test)
2317{
2318	struct cros_ec_proto_test_priv *priv = test->priv;
2319	struct cros_ec_device *ec_dev = &priv->ec_dev;
2320	int ret;
2321
2322	ec_dev->mkbp_event_supported = 1;
2323	ec_dev->event_data.event_type = EC_MKBP_EVENT_FINGERPRINT;
2324
2325	ret = cros_ec_get_host_event(ec_dev);
2326	KUNIT_EXPECT_EQ(test, ret, 0);
2327}
2328
2329static void cros_ec_proto_test_get_host_event_wrong_event_size(struct kunit *test)
2330{
2331	struct cros_ec_proto_test_priv *priv = test->priv;
2332	struct cros_ec_device *ec_dev = &priv->ec_dev;
2333	int ret;
2334
2335	ec_dev->mkbp_event_supported = 1;
2336	ec_dev->event_data.event_type = EC_MKBP_EVENT_HOST_EVENT;
2337	ec_dev->event_size = 0xff;
2338
2339	ret = cros_ec_get_host_event(ec_dev);
2340	KUNIT_EXPECT_EQ(test, ret, 0);
2341}
2342
2343static void cros_ec_proto_test_get_host_event_normal(struct kunit *test)
2344{
2345	struct cros_ec_proto_test_priv *priv = test->priv;
2346	struct cros_ec_device *ec_dev = &priv->ec_dev;
2347	int ret;
2348
2349	ec_dev->mkbp_event_supported = 1;
2350	ec_dev->event_data.event_type = EC_MKBP_EVENT_HOST_EVENT;
2351	ec_dev->event_size = sizeof(ec_dev->event_data.data.host_event);
2352	put_unaligned_le32(EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC),
2353			   &ec_dev->event_data.data.host_event);
2354
2355	ret = cros_ec_get_host_event(ec_dev);
2356	KUNIT_EXPECT_EQ(test, ret, EC_HOST_EVENT_MASK(EC_HOST_EVENT_RTC));
2357}
2358
2359static void cros_ec_proto_test_check_features_cached(struct kunit *test)
2360{
2361	int ret, i;
2362	static struct cros_ec_dev ec;
2363
2364	ec.features.flags[0] = EC_FEATURE_MASK_0(EC_FEATURE_FINGERPRINT);
2365	ec.features.flags[1] = EC_FEATURE_MASK_0(EC_FEATURE_SCP);
2366
2367	for (i = 0; i < EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK; ++i) {
2368		ret = cros_ec_check_features(&ec, i);
2369		switch (i) {
2370		case EC_FEATURE_FINGERPRINT:
2371		case EC_FEATURE_SCP:
2372			KUNIT_EXPECT_TRUE(test, ret);
2373			break;
2374		default:
2375			KUNIT_EXPECT_FALSE(test, ret);
2376			break;
2377		}
2378	}
2379}
2380
2381static void cros_ec_proto_test_check_features_not_cached(struct kunit *test)
2382{
2383	struct cros_ec_proto_test_priv *priv = test->priv;
2384	struct cros_ec_device *ec_dev = &priv->ec_dev;
2385	struct ec_xfer_mock *mock;
2386	int ret, i;
2387	static struct cros_ec_dev ec;
2388
2389	ec_dev->max_request = 0xff;
2390	ec_dev->max_response = 0xee;
2391	ec.ec_dev = ec_dev;
2392	ec.dev = ec_dev->dev;
2393	ec.cmd_offset = 0;
2394	ec.features.flags[0] = -1;
2395	ec.features.flags[1] = -1;
2396
2397	/* For EC_CMD_GET_FEATURES. */
2398	{
2399		struct ec_response_get_features *data;
2400
2401		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
2402		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2403
2404		data = (struct ec_response_get_features *)mock->o_data;
2405		data->flags[0] = EC_FEATURE_MASK_0(EC_FEATURE_FINGERPRINT);
2406		data->flags[1] = EC_FEATURE_MASK_0(EC_FEATURE_SCP);
2407	}
2408
2409	for (i = 0; i < EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK; ++i) {
2410		ret = cros_ec_check_features(&ec, i);
2411		switch (i) {
2412		case EC_FEATURE_FINGERPRINT:
2413		case EC_FEATURE_SCP:
2414			KUNIT_EXPECT_TRUE(test, ret);
2415			break;
2416		default:
2417			KUNIT_EXPECT_FALSE(test, ret);
2418			break;
2419		}
2420	}
2421
2422	/* For EC_CMD_GET_FEATURES. */
2423	{
2424		mock = cros_kunit_ec_xfer_mock_next();
2425		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2426
2427		KUNIT_EXPECT_EQ(test, mock->msg.version, 0);
2428		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_FEATURES);
2429		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_get_features));
2430		KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0);
2431	}
2432}
2433
2434static void cros_ec_proto_test_get_sensor_count_normal(struct kunit *test)
2435{
2436	struct cros_ec_proto_test_priv *priv = test->priv;
2437	struct cros_ec_device *ec_dev = &priv->ec_dev;
2438	struct ec_xfer_mock *mock;
2439	int ret;
2440	static struct cros_ec_dev ec;
2441
2442	ec_dev->max_request = 0xff;
2443	ec_dev->max_response = 0xee;
2444	ec.ec_dev = ec_dev;
2445	ec.dev = ec_dev->dev;
2446	ec.cmd_offset = 0;
2447
2448	/* For EC_CMD_MOTION_SENSE_CMD. */
2449	{
2450		struct ec_response_motion_sense *data;
2451
2452		mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data));
2453		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2454
2455		data = (struct ec_response_motion_sense *)mock->o_data;
2456		data->dump.sensor_count = 0xbf;
2457	}
2458
2459	ret = cros_ec_get_sensor_count(&ec);
2460	KUNIT_EXPECT_EQ(test, ret, 0xbf);
2461
2462	/* For EC_CMD_MOTION_SENSE_CMD. */
2463	{
2464		struct ec_params_motion_sense *data;
2465
2466		mock = cros_kunit_ec_xfer_mock_next();
2467		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2468
2469		KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
2470		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
2471		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_motion_sense));
2472		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
2473
2474		data = (struct ec_params_motion_sense *)mock->i_data;
2475		KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
2476	}
2477}
2478
2479static void cros_ec_proto_test_get_sensor_count_xfer_error(struct kunit *test)
2480{
2481	struct cros_ec_proto_test_priv *priv = test->priv;
2482	struct cros_ec_device *ec_dev = &priv->ec_dev;
2483	struct ec_xfer_mock *mock;
2484	int ret;
2485	static struct cros_ec_dev ec;
2486
2487	ec_dev->max_request = 0xff;
2488	ec_dev->max_response = 0xee;
2489	ec.ec_dev = ec_dev;
2490	ec.dev = ec_dev->dev;
2491	ec.cmd_offset = 0;
2492
2493	/* For EC_CMD_MOTION_SENSE_CMD. */
2494	{
2495		mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
2496		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2497	}
2498
2499	ret = cros_ec_get_sensor_count(&ec);
2500	KUNIT_EXPECT_EQ(test, ret, -EPROTO);
2501
2502	/* For EC_CMD_MOTION_SENSE_CMD. */
2503	{
2504		struct ec_params_motion_sense *data;
2505
2506		mock = cros_kunit_ec_xfer_mock_next();
2507		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2508
2509		KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
2510		KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
2511		KUNIT_EXPECT_EQ(test, mock->msg.insize, sizeof(struct ec_response_motion_sense));
2512		KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
2513
2514		data = (struct ec_params_motion_sense *)mock->i_data;
2515		KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
2516	}
2517}
2518
2519static void cros_ec_proto_test_get_sensor_count_legacy(struct kunit *test)
2520{
2521	struct cros_ec_proto_test_priv *priv = test->priv;
2522	struct cros_ec_device *ec_dev = &priv->ec_dev;
2523	struct ec_xfer_mock *mock;
2524	int ret, i;
2525	static struct cros_ec_dev ec;
2526	struct {
2527		u8 readmem_data;
2528		int expected_result;
2529	} test_data[] = {
2530		{ 0, 0 },
2531		{ EC_MEMMAP_ACC_STATUS_PRESENCE_BIT, 2 },
2532	};
2533
2534	ec_dev->max_request = 0xff;
2535	ec_dev->max_response = 0xee;
2536	ec_dev->cmd_readmem = cros_kunit_readmem_mock;
2537	ec.ec_dev = ec_dev;
2538	ec.dev = ec_dev->dev;
2539	ec.cmd_offset = 0;
2540
2541	for (i = 0; i < ARRAY_SIZE(test_data); ++i) {
2542		/* For EC_CMD_MOTION_SENSE_CMD. */
2543		{
2544			mock = cros_kunit_ec_xfer_mock_addx(test, -EPROTO, EC_RES_SUCCESS, 0);
2545			KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2546		}
2547
2548		/* For readmem. */
2549		{
2550			cros_kunit_readmem_mock_data = kunit_kzalloc(test, 1, GFP_KERNEL);
2551			KUNIT_ASSERT_PTR_NE(test, cros_kunit_readmem_mock_data, NULL);
2552			cros_kunit_readmem_mock_data[0] = test_data[i].readmem_data;
2553
2554			cros_kunit_ec_xfer_mock_default_ret = 1;
2555		}
2556
2557		ret = cros_ec_get_sensor_count(&ec);
2558		KUNIT_EXPECT_EQ(test, ret, test_data[i].expected_result);
2559
2560		/* For EC_CMD_MOTION_SENSE_CMD. */
2561		{
2562			struct ec_params_motion_sense *data;
2563
2564			mock = cros_kunit_ec_xfer_mock_next();
2565			KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2566
2567			KUNIT_EXPECT_EQ(test, mock->msg.version, 1);
2568			KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_MOTION_SENSE_CMD);
2569			KUNIT_EXPECT_EQ(test, mock->msg.insize,
2570					sizeof(struct ec_response_motion_sense));
2571			KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data));
2572
2573			data = (struct ec_params_motion_sense *)mock->i_data;
2574			KUNIT_EXPECT_EQ(test, data->cmd, MOTIONSENSE_CMD_DUMP);
2575		}
2576
2577		/* For readmem. */
2578		{
2579			KUNIT_EXPECT_EQ(test, cros_kunit_readmem_mock_offset, EC_MEMMAP_ACC_STATUS);
2580		}
2581	}
2582}
2583
2584static void cros_ec_proto_test_ec_cmd(struct kunit *test)
2585{
2586	struct cros_ec_proto_test_priv *priv = test->priv;
2587	struct cros_ec_device *ec_dev = &priv->ec_dev;
2588	struct ec_xfer_mock *mock;
2589	int ret;
2590	u8 out[3], in[2];
2591
2592	ec_dev->max_request = 0xff;
2593	ec_dev->max_response = 0xee;
2594
2595	out[0] = 0xdd;
2596	out[1] = 0xcc;
2597	out[2] = 0xbb;
2598
2599	{
2600		u8 *data;
2601
2602		mock = cros_kunit_ec_xfer_mock_add(test, 2);
2603		KUNIT_ASSERT_PTR_NE(test, mock, NULL);
2604
2605		data = (u8 *)mock->o_data;
2606		data[0] = 0xaa;
2607		data[1] = 0x99;
2608	}
2609
2610	ret = cros_ec_cmd(ec_dev, 0x88, 0x77, out, ARRAY_SIZE(out), in, ARRAY_SIZE(in));
2611	KUNIT_EXPECT_EQ(test, ret, 2);
2612
2613	{
2614		u8 *data;
2615
2616		mock = cros_kunit_ec_xfer_mock_next();
2617		KUNIT_EXPECT_PTR_NE(test, mock, NULL);
2618
2619		KUNIT_EXPECT_EQ(test, mock->msg.version, 0x88);
2620		KUNIT_EXPECT_EQ(test, mock->msg.command, 0x77);
2621		KUNIT_EXPECT_EQ(test, mock->msg.insize, ARRAY_SIZE(in));
2622		KUNIT_EXPECT_EQ(test, mock->msg.outsize, ARRAY_SIZE(out));
2623
2624		data = (u8 *)mock->i_data;
2625		KUNIT_EXPECT_EQ(test, data[0], 0xdd);
2626		KUNIT_EXPECT_EQ(test, data[1], 0xcc);
2627		KUNIT_EXPECT_EQ(test, data[2], 0xbb);
2628	}
2629}
2630
2631static void cros_ec_proto_test_release(struct device *dev)
2632{
2633}
2634
2635static int cros_ec_proto_test_init(struct kunit *test)
2636{
2637	struct cros_ec_proto_test_priv *priv;
2638	struct cros_ec_device *ec_dev;
2639
2640	priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
2641	if (!priv)
2642		return -ENOMEM;
2643	test->priv = priv;
2644
2645	ec_dev = &priv->ec_dev;
2646	ec_dev->dout = (u8 *)priv->dout;
2647	ec_dev->dout_size = ARRAY_SIZE(priv->dout);
2648	ec_dev->din = (u8 *)priv->din;
2649	ec_dev->din_size = ARRAY_SIZE(priv->din);
2650	ec_dev->proto_version = EC_HOST_REQUEST_VERSION;
2651	ec_dev->dev = kunit_kzalloc(test, sizeof(*ec_dev->dev), GFP_KERNEL);
2652	if (!ec_dev->dev)
2653		return -ENOMEM;
2654	device_initialize(ec_dev->dev);
2655	dev_set_name(ec_dev->dev, "cros_ec_proto_test");
2656	ec_dev->dev->release = cros_ec_proto_test_release;
2657	ec_dev->cmd_xfer = cros_kunit_ec_xfer_mock;
2658	ec_dev->pkt_xfer = cros_kunit_ec_xfer_mock;
2659	mutex_init(&ec_dev->lock);
2660
2661	priv->msg = (struct cros_ec_command *)priv->_msg;
2662
2663	cros_kunit_mock_reset();
2664
2665	return 0;
2666}
2667
2668static void cros_ec_proto_test_exit(struct kunit *test)
2669{
2670	struct cros_ec_proto_test_priv *priv = test->priv;
2671	struct cros_ec_device *ec_dev = &priv->ec_dev;
2672
2673	put_device(ec_dev->dev);
2674}
2675
2676static struct kunit_case cros_ec_proto_test_cases[] = {
2677	KUNIT_CASE(cros_ec_proto_test_prepare_tx_legacy_normal),
2678	KUNIT_CASE(cros_ec_proto_test_prepare_tx_legacy_bad_msg_outsize),
2679	KUNIT_CASE(cros_ec_proto_test_prepare_tx_normal),
2680	KUNIT_CASE(cros_ec_proto_test_prepare_tx_bad_msg_outsize),
2681	KUNIT_CASE(cros_ec_proto_test_check_result),
2682	KUNIT_CASE(cros_ec_proto_test_query_all_normal),
2683	KUNIT_CASE(cros_ec_proto_test_query_all_no_pd_return_error),
2684	KUNIT_CASE(cros_ec_proto_test_query_all_no_pd_return0),
2685	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_normal_v3_return_error),
2686	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_normal_v3_return0),
2687	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_xfer_error),
2688	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_return_error),
2689	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_data_error),
2690	KUNIT_CASE(cros_ec_proto_test_query_all_legacy_return0),
2691	KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp),
2692	KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return_error),
2693	KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return0),
2694	KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep),
2695	KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep_return0),
2696	KUNIT_CASE(cros_ec_proto_test_query_all_default_wake_mask_return_error),
2697	KUNIT_CASE(cros_ec_proto_test_query_all_default_wake_mask_return0),
2698	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_normal),
2699	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_insize),
2700	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_outsize_without_passthru),
2701	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_excess_msg_outsize_with_passthru),
2702	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v3_normal),
2703	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v3_no_op),
2704	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v2_normal),
2705	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_protocol_v2_no_op),
2706	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_normal),
2707	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_retries_eagain),
2708	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_retries_status_processing),
2709	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_xfer_error),
2710	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_return_error),
2711	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_return0),
2712	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_normal),
2713	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_xfer_error),
2714	KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_return_error),
2715	KUNIT_CASE(cros_ec_proto_test_get_next_event_no_mkbp_event),
2716	KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_ec_suspended),
2717	KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_version0),
2718	KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_version2),
2719	KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_host_event_rtc),
2720	KUNIT_CASE(cros_ec_proto_test_get_next_event_mkbp_event_host_event_masked),
2721	KUNIT_CASE(cros_ec_proto_test_get_host_event_no_mkbp_event),
2722	KUNIT_CASE(cros_ec_proto_test_get_host_event_not_host_event),
2723	KUNIT_CASE(cros_ec_proto_test_get_host_event_wrong_event_size),
2724	KUNIT_CASE(cros_ec_proto_test_get_host_event_normal),
2725	KUNIT_CASE(cros_ec_proto_test_check_features_cached),
2726	KUNIT_CASE(cros_ec_proto_test_check_features_not_cached),
2727	KUNIT_CASE(cros_ec_proto_test_get_sensor_count_normal),
2728	KUNIT_CASE(cros_ec_proto_test_get_sensor_count_xfer_error),
2729	KUNIT_CASE(cros_ec_proto_test_get_sensor_count_legacy),
2730	KUNIT_CASE(cros_ec_proto_test_ec_cmd),
2731	{}
2732};
2733
2734static struct kunit_suite cros_ec_proto_test_suite = {
2735	.name = "cros_ec_proto_test",
2736	.init = cros_ec_proto_test_init,
2737	.exit = cros_ec_proto_test_exit,
2738	.test_cases = cros_ec_proto_test_cases,
2739};
2740
2741kunit_test_suite(cros_ec_proto_test_suite);
2742
2743MODULE_DESCRIPTION("Kunit tests for ChromeOS Embedded Controller protocol");
2744MODULE_LICENSE("GPL");