56 		      struct cros_ec_command *msg)  in prepare_tx()  argument
63 	if (msg->outsize + sizeof(*request) > ec_dev->dout_size)  in prepare_tx()
70 	request->command = msg->command;  in prepare_tx()
71 	request->command_version = msg->version;  in prepare_tx()
73 	request->data_len = msg->outsize;  in prepare_tx()
79 	memcpy(out + sizeof(*request), msg->data, msg->outsize);  in prepare_tx()
80 	for (i = 0; i < msg->outsize; i++)  in prepare_tx()
81 		csum += msg->data[i];  in prepare_tx()
85 	return sizeof(*request) + msg->outsize;  in prepare_tx()
89 			     struct cros_ec_command *msg)  in prepare_tx_legacy()  argument
95 	if (msg->outsize > EC_PROTO2_MAX_PARAM_SIZE)  in prepare_tx_legacy()
99 	out[0] = EC_CMD_VERSION0 + msg->version;  in prepare_tx_legacy()
100 	out[1] = msg->command;  in prepare_tx_legacy()
101 	out[2] = msg->outsize;  in prepare_tx_legacy()
103 	for (i = 0; i < msg->outsize; i++)  in prepare_tx_legacy()
104 		csum += out[EC_MSG_TX_HEADER_BYTES + i] = msg->data[i];  in prepare_tx_legacy()
105 	out[EC_MSG_TX_HEADER_BYTES + msg->outsize] = csum;  in prepare_tx_legacy()
107 	return EC_MSG_TX_PROTO_BYTES + msg->outsize;  in prepare_tx_legacy()
110 static int cros_ec_xfer_command(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)  in cros_ec_xfer_command()  argument
113 	int (*xfer_fxn)(struct cros_ec_device *ec, struct cros_ec_command *msg);  in cros_ec_xfer_command()
130 	trace_cros_ec_request_start(msg);  in cros_ec_xfer_command()
131 	ret = (*xfer_fxn)(ec_dev, msg);  in cros_ec_xfer_command()
132 	trace_cros_ec_request_done(msg, ret);  in cros_ec_xfer_command()
140 		struct cros_ec_command msg;  in cros_ec_wait_until_complete()  member
143 	struct cros_ec_command *msg = &buf.msg;  in cros_ec_wait_until_complete()  local
147 	msg->version = 0;  in cros_ec_wait_until_complete()
148 	msg->command = EC_CMD_GET_COMMS_STATUS;  in cros_ec_wait_until_complete()
149 	msg->insize = sizeof(*status);  in cros_ec_wait_until_complete()
150 	msg->outsize = 0;  in cros_ec_wait_until_complete()
156 		ret = cros_ec_xfer_command(ec_dev, msg);  in cros_ec_wait_until_complete()
162 		*result = msg->result;  in cros_ec_wait_until_complete()
163 		if (msg->result != EC_RES_SUCCESS)  in cros_ec_wait_until_complete()
181 static int cros_ec_send_command(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)  in cros_ec_send_command()  argument
183 	int ret = cros_ec_xfer_command(ec_dev, msg);  in cros_ec_send_command()
185 	if (msg->result == EC_RES_IN_PROGRESS)  in cros_ec_send_command()
186 		ret = cros_ec_wait_until_complete(ec_dev, &msg->result);  in cros_ec_send_command()
202 		       struct cros_ec_command *msg)  in cros_ec_prepare_tx()  argument
205 		return prepare_tx(ec_dev, msg);  in cros_ec_prepare_tx()
207 	return prepare_tx_legacy(ec_dev, msg);  in cros_ec_prepare_tx()
225 			 struct cros_ec_command *msg)  in cros_ec_check_result()  argument
227 	switch (msg->result) {  in cros_ec_check_result()
232 			msg->command);  in cros_ec_check_result()
236 			msg->command, msg->result);  in cros_ec_check_result()
257 	struct cros_ec_command *msg;  in cros_ec_get_host_event_wake_mask()  local
261 	msg = kzalloc(sizeof(*msg) + sizeof(*r), GFP_KERNEL);  in cros_ec_get_host_event_wake_mask()
262 	if (!msg)  in cros_ec_get_host_event_wake_mask()
265 	msg->command = EC_CMD_HOST_EVENT_GET_WAKE_MASK;  in cros_ec_get_host_event_wake_mask()
266 	msg->insize = sizeof(*r);  in cros_ec_get_host_event_wake_mask()
268 	ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_get_host_event_wake_mask()
272 	mapped = cros_ec_map_error(msg->result);  in cros_ec_get_host_event_wake_mask()
283 	r = (struct ec_response_host_event_mask *)msg->data;  in cros_ec_get_host_event_wake_mask()
287 	kfree(msg);  in cros_ec_get_host_event_wake_mask()
293 	struct cros_ec_command *msg;  in cros_ec_get_proto_info()  local
301 	msg = kzalloc(sizeof(*msg) + sizeof(*info), GFP_KERNEL);  in cros_ec_get_proto_info()
302 	if (!msg)  in cros_ec_get_proto_info()
305 	msg->command = EC_CMD_PASSTHRU_OFFSET(devidx) | EC_CMD_GET_PROTOCOL_INFO;  in cros_ec_get_proto_info()
306 	msg->insize = sizeof(*info);  in cros_ec_get_proto_info()
308 	ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_get_proto_info()
317 		ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_get_proto_info()
326 	mapped = cros_ec_map_error(msg->result);  in cros_ec_get_proto_info()
337 	info = (struct ec_response_get_protocol_info *)msg->data;  in cros_ec_get_proto_info()
365 	kfree(msg);  in cros_ec_get_proto_info()
371 	struct cros_ec_command *msg;  in cros_ec_get_proto_info_legacy()  local
378 	msg = kzalloc(sizeof(*msg) + max(sizeof(*params), sizeof(*response)), GFP_KERNEL);  in cros_ec_get_proto_info_legacy()
379 	if (!msg)  in cros_ec_get_proto_info_legacy()
382 	msg->command = EC_CMD_HELLO;  in cros_ec_get_proto_info_legacy()
383 	msg->insize = sizeof(*response);  in cros_ec_get_proto_info_legacy()
384 	msg->outsize = sizeof(*params);  in cros_ec_get_proto_info_legacy()
386 	params = (struct ec_params_hello *)msg->data;  in cros_ec_get_proto_info_legacy()
389 	ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_get_proto_info_legacy()
395 	mapped = cros_ec_map_error(msg->result);  in cros_ec_get_proto_info_legacy()
398 		dev_err(ec_dev->dev, "EC responded to v2 hello with error: %d\n", msg->result);  in cros_ec_get_proto_info_legacy()
407 	response = (struct ec_response_hello *)msg->data;  in cros_ec_get_proto_info_legacy()
426 	kfree(msg);  in cros_ec_get_proto_info_legacy()
450 	struct cros_ec_command *msg;  in cros_ec_get_host_command_version_mask()  local
453 	msg = kmalloc(sizeof(*msg) + max(sizeof(*rver), sizeof(*pver)),  in cros_ec_get_host_command_version_mask()
455 	if (!msg)  in cros_ec_get_host_command_version_mask()
458 	msg->version = 0;  in cros_ec_get_host_command_version_mask()
459 	msg->command = EC_CMD_GET_CMD_VERSIONS;  in cros_ec_get_host_command_version_mask()
460 	msg->insize = sizeof(*rver);  in cros_ec_get_host_command_version_mask()
461 	msg->outsize = sizeof(*pver);  in cros_ec_get_host_command_version_mask()
463 	pver = (struct ec_params_get_cmd_versions *)msg->data;  in cros_ec_get_host_command_version_mask()
466 	ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_get_host_command_version_mask()
470 	mapped = cros_ec_map_error(msg->result);  in cros_ec_get_host_command_version_mask()
481 	rver = (struct ec_response_get_cmd_versions *)msg->data;  in cros_ec_get_host_command_version_mask()
485 	kfree(msg);  in cros_ec_get_host_command_version_mask()
607 int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev, struct cros_ec_command *msg)  in cros_ec_cmd_xfer()  argument
622 	if (msg->insize > ec_dev->max_response) {  in cros_ec_cmd_xfer()
624 		msg->insize = ec_dev->max_response;  in cros_ec_cmd_xfer()
627 	if (msg->command < EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX)) {  in cros_ec_cmd_xfer()
628 		if (msg->outsize > ec_dev->max_request) {  in cros_ec_cmd_xfer()
631 				msg->outsize,  in cros_ec_cmd_xfer()
637 		if (msg->outsize > ec_dev->max_passthru) {  in cros_ec_cmd_xfer()
640 				msg->outsize,  in cros_ec_cmd_xfer()
647 	ret = cros_ec_send_command(ec_dev, msg);  in cros_ec_cmd_xfer()
668 			    struct cros_ec_command *msg)  in cros_ec_cmd_xfer_status()  argument
672 	ret = cros_ec_cmd_xfer(ec_dev, msg);  in cros_ec_cmd_xfer_status()
676 	mapped = cros_ec_map_error(msg->result);  in cros_ec_cmd_xfer_status()
679 			msg->result, mapped);  in cros_ec_cmd_xfer_status()
688 			       struct cros_ec_command *msg,  in get_next_event_xfer()  argument
694 	msg->version = version;  in get_next_event_xfer()
695 	msg->command = EC_CMD_GET_NEXT_EVENT;  in get_next_event_xfer()
696 	msg->insize = size;  in get_next_event_xfer()
697 	msg->outsize = 0;  in get_next_event_xfer()
699 	ret = cros_ec_cmd_xfer_status(ec_dev, msg);  in get_next_event_xfer()
711 		struct cros_ec_command msg;  in get_next_event()  member
714 	struct cros_ec_command *msg = &buf.msg;  in get_next_event()  local
718 	memset(msg, 0, sizeof(*msg));  in get_next_event()
725 		return get_next_event_xfer(ec_dev, msg, event, 0,  in get_next_event()
728 	return get_next_event_xfer(ec_dev, msg, event, cmd_version,  in get_next_event()
736 	struct cros_ec_command *msg = (struct cros_ec_command *)&buffer;  in get_keyboard_state_event()  local
738 	msg->version = 0;  in get_keyboard_state_event()
739 	msg->command = EC_CMD_MKBP_STATE;  in get_keyboard_state_event()
740 	msg->insize = sizeof(ec_dev->event_data.data);  in get_keyboard_state_event()
741 	msg->outsize = 0;  in get_keyboard_state_event()
743 	ec_dev->event_size = cros_ec_cmd_xfer_status(ec_dev, msg);  in get_keyboard_state_event()
745 	memcpy(&ec_dev->event_data.data, msg->data,  in get_keyboard_state_event()
941 	struct cros_ec_command *msg;  in cros_ec_get_sensor_count()  local
945 	msg = kzalloc(sizeof(*msg) + max(sizeof(*params), sizeof(*resp)),  in cros_ec_get_sensor_count()
947 	if (!msg)  in cros_ec_get_sensor_count()
950 	msg->version = 1;  in cros_ec_get_sensor_count()
951 	msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset;  in cros_ec_get_sensor_count()
952 	msg->outsize = sizeof(*params);  in cros_ec_get_sensor_count()
953 	msg->insize = sizeof(*resp);  in cros_ec_get_sensor_count()
955 	params = (struct ec_params_motion_sense *)msg->data;  in cros_ec_get_sensor_count()
958 	ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg);  in cros_ec_get_sensor_count()
962 		resp = (struct ec_response_motion_sense *)msg->data;  in cros_ec_get_sensor_count()
965 	kfree(msg);  in cros_ec_get_sensor_count()
1012 	struct cros_ec_command *msg;  in cros_ec_cmd()  local
1015 	msg = kzalloc(sizeof(*msg) + max(insize, outsize), GFP_KERNEL);  in cros_ec_cmd()
1016 	if (!msg)  in cros_ec_cmd()
1019 	msg->version = version;  in cros_ec_cmd()
1020 	msg->command = command;  in cros_ec_cmd()
1021 	msg->outsize = outsize;  in cros_ec_cmd()
1022 	msg->insize = insize;  in cros_ec_cmd()
1025 		memcpy(msg->data, outdata, outsize);  in cros_ec_cmd()
1027 	ret = cros_ec_cmd_xfer_status(ec_dev, msg);  in cros_ec_cmd()
1032 		memcpy(indata, msg->data, insize);  in cros_ec_cmd()
1034 	kfree(msg);  in cros_ec_cmd()