Lines Matching refs:ec_dev
58 static int prepare_tx(struct cros_ec_device *ec_dev, in prepare_tx() argument
66 if (msg->outsize + sizeof(*request) > ec_dev->dout_size) in prepare_tx()
69 out = ec_dev->dout; in prepare_tx()
91 static int prepare_tx_legacy(struct cros_ec_device *ec_dev, in prepare_tx_legacy() argument
101 out = ec_dev->dout; in prepare_tx_legacy()
113 static int cros_ec_xfer_command(struct cros_ec_device *ec_dev, struct cros_ec_command *msg) in cros_ec_xfer_command() argument
118 if (ec_dev->proto_version > 2) in cros_ec_xfer_command()
119 xfer_fxn = ec_dev->pkt_xfer; in cros_ec_xfer_command()
121 xfer_fxn = ec_dev->cmd_xfer; in cros_ec_xfer_command()
129 dev_err_once(ec_dev->dev, "missing EC transfer API, cannot send command\n"); in cros_ec_xfer_command()
134 ret = (*xfer_fxn)(ec_dev, msg); in cros_ec_xfer_command()
140 static int cros_ec_wait_until_complete(struct cros_ec_device *ec_dev, uint32_t *result) in cros_ec_wait_until_complete() argument
157 ret = cros_ec_xfer_command(ec_dev, msg); in cros_ec_wait_until_complete()
182 static int cros_ec_send_command(struct cros_ec_device *ec_dev, struct cros_ec_command *msg) in cros_ec_send_command() argument
184 int ret = cros_ec_xfer_command(ec_dev, msg); in cros_ec_send_command()
187 ret = cros_ec_wait_until_complete(ec_dev, &msg->result); in cros_ec_send_command()
202 int cros_ec_prepare_tx(struct cros_ec_device *ec_dev, in cros_ec_prepare_tx() argument
205 if (ec_dev->proto_version > 2) in cros_ec_prepare_tx()
206 return prepare_tx(ec_dev, msg); in cros_ec_prepare_tx()
208 return prepare_tx_legacy(ec_dev, msg); in cros_ec_prepare_tx()
225 int cros_ec_check_result(struct cros_ec_device *ec_dev, in cros_ec_check_result() argument
232 dev_dbg(ec_dev->dev, "command 0x%02x in progress\n", in cros_ec_check_result()
236 dev_dbg(ec_dev->dev, "command 0x%02x returned %d\n", in cros_ec_check_result()
255 static int cros_ec_get_host_event_wake_mask(struct cros_ec_device *ec_dev, uint32_t *mask) in cros_ec_get_host_event_wake_mask() argument
268 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_get_host_event_wake_mask()
291 int cros_ec_rwsig_continue(struct cros_ec_device *ec_dev) in cros_ec_rwsig_continue() argument
298 ec_dev->proto_version = 3; in cros_ec_rwsig_continue()
313 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_rwsig_continue()
349 static int cros_ec_get_proto_info(struct cros_ec_device *ec_dev, int devidx) in cros_ec_get_proto_info() argument
355 ec_dev->proto_version = 3; in cros_ec_get_proto_info()
357 ec_dev->max_passthru = 0; in cros_ec_get_proto_info()
366 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_get_proto_info()
369 dev_dbg(ec_dev->dev, in cros_ec_get_proto_info()
390 ec_dev->max_request = info->max_request_packet_size - in cros_ec_get_proto_info()
392 ec_dev->max_response = info->max_response_packet_size - in cros_ec_get_proto_info()
394 ec_dev->proto_version = min(EC_HOST_REQUEST_VERSION, in cros_ec_get_proto_info()
396 ec_dev->din_size = info->max_response_packet_size + EC_MAX_RESPONSE_OVERHEAD; in cros_ec_get_proto_info()
397 ec_dev->dout_size = info->max_request_packet_size + EC_MAX_REQUEST_OVERHEAD; in cros_ec_get_proto_info()
399 dev_dbg(ec_dev->dev, "using proto v%u\n", ec_dev->proto_version); in cros_ec_get_proto_info()
402 ec_dev->max_passthru = info->max_request_packet_size - in cros_ec_get_proto_info()
405 dev_dbg(ec_dev->dev, "found PD chip\n"); in cros_ec_get_proto_info()
408 dev_dbg(ec_dev->dev, "unknown passthru index: %d\n", devidx); in cros_ec_get_proto_info()
418 static int cros_ec_get_proto_info_legacy(struct cros_ec_device *ec_dev) in cros_ec_get_proto_info_legacy() argument
425 ec_dev->proto_version = 2; in cros_ec_get_proto_info_legacy()
438 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_get_proto_info_legacy()
440 dev_dbg(ec_dev->dev, "EC failed to respond to v2 hello: %d\n", ret); in cros_ec_get_proto_info_legacy()
447 dev_err(ec_dev->dev, "EC responded to v2 hello with error: %d\n", msg->result); in cros_ec_get_proto_info_legacy()
458 dev_err(ec_dev->dev, in cros_ec_get_proto_info_legacy()
465 ec_dev->max_request = EC_PROTO2_MAX_PARAM_SIZE; in cros_ec_get_proto_info_legacy()
466 ec_dev->max_response = EC_PROTO2_MAX_PARAM_SIZE; in cros_ec_get_proto_info_legacy()
467 ec_dev->max_passthru = 0; in cros_ec_get_proto_info_legacy()
468 ec_dev->pkt_xfer = NULL; in cros_ec_get_proto_info_legacy()
469 ec_dev->din_size = EC_PROTO2_MSG_BYTES; in cros_ec_get_proto_info_legacy()
470 ec_dev->dout_size = EC_PROTO2_MSG_BYTES; in cros_ec_get_proto_info_legacy()
472 dev_dbg(ec_dev->dev, "falling back to proto v2\n"); in cros_ec_get_proto_info_legacy()
494 static int cros_ec_get_host_command_version_mask(struct cros_ec_device *ec_dev, u16 cmd, u32 *mask) in cros_ec_get_host_command_version_mask() argument
514 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_get_host_command_version_mask()
544 int cros_ec_query_all(struct cros_ec_device *ec_dev) in cros_ec_query_all() argument
546 struct device *dev = ec_dev->dev; in cros_ec_query_all()
551 if (!cros_ec_get_proto_info(ec_dev, CROS_EC_DEV_EC_INDEX)) { in cros_ec_query_all()
553 cros_ec_get_proto_info(ec_dev, CROS_EC_DEV_PD_INDEX); in cros_ec_query_all()
556 ret = cros_ec_get_proto_info_legacy(ec_dev); in cros_ec_query_all()
563 ec_dev->proto_version = EC_PROTO_VERSION_UNKNOWN; in cros_ec_query_all()
564 dev_dbg(ec_dev->dev, "EC query failed: %d\n", ret); in cros_ec_query_all()
569 devm_kfree(dev, ec_dev->din); in cros_ec_query_all()
570 devm_kfree(dev, ec_dev->dout); in cros_ec_query_all()
572 ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL); in cros_ec_query_all()
573 if (!ec_dev->din) { in cros_ec_query_all()
578 ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL); in cros_ec_query_all()
579 if (!ec_dev->dout) { in cros_ec_query_all()
580 devm_kfree(dev, ec_dev->din); in cros_ec_query_all()
586 ret = cros_ec_get_host_command_version_mask(ec_dev, EC_CMD_GET_NEXT_EVENT, &ver_mask); in cros_ec_query_all()
588 ec_dev->mkbp_event_supported = 0; in cros_ec_query_all()
590 ec_dev->mkbp_event_supported = fls(ver_mask); in cros_ec_query_all()
592 dev_dbg(ec_dev->dev, "MKBP support version %u\n", ec_dev->mkbp_event_supported - 1); in cros_ec_query_all()
596 ret = cros_ec_get_host_command_version_mask(ec_dev, EC_CMD_HOST_SLEEP_EVENT, &ver_mask); in cros_ec_query_all()
597 ec_dev->host_sleep_v1 = (ret == 0 && (ver_mask & EC_VER_MASK(1))); in cros_ec_query_all()
600 ret = cros_ec_get_host_event_wake_mask(ec_dev, &ec_dev->host_event_wake_mask); in cros_ec_query_all()
611 ec_dev->host_event_wake_mask = U32_MAX & in cros_ec_query_all()
624 dev_err(ec_dev->dev, in cros_ec_query_all()
655 int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev, struct cros_ec_command *msg) in cros_ec_cmd_xfer() argument
659 mutex_lock(&ec_dev->lock); in cros_ec_cmd_xfer()
660 if (ec_dev->proto_version == EC_PROTO_VERSION_UNKNOWN) { in cros_ec_cmd_xfer()
661 ret = cros_ec_query_all(ec_dev); in cros_ec_cmd_xfer()
663 dev_err(ec_dev->dev, in cros_ec_cmd_xfer()
665 mutex_unlock(&ec_dev->lock); in cros_ec_cmd_xfer()
670 if (msg->insize > ec_dev->max_response) { in cros_ec_cmd_xfer()
671 dev_dbg(ec_dev->dev, "clamping message receive buffer\n"); in cros_ec_cmd_xfer()
672 msg->insize = ec_dev->max_response; in cros_ec_cmd_xfer()
676 if (msg->outsize > ec_dev->max_request) { in cros_ec_cmd_xfer()
677 dev_err(ec_dev->dev, in cros_ec_cmd_xfer()
680 ec_dev->max_request); in cros_ec_cmd_xfer()
681 mutex_unlock(&ec_dev->lock); in cros_ec_cmd_xfer()
685 if (msg->outsize > ec_dev->max_passthru) { in cros_ec_cmd_xfer()
686 dev_err(ec_dev->dev, in cros_ec_cmd_xfer()
689 ec_dev->max_passthru); in cros_ec_cmd_xfer()
690 mutex_unlock(&ec_dev->lock); in cros_ec_cmd_xfer()
695 ret = cros_ec_send_command(ec_dev, msg); in cros_ec_cmd_xfer()
696 mutex_unlock(&ec_dev->lock); in cros_ec_cmd_xfer()
715 int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev, in cros_ec_cmd_xfer_status() argument
720 ret = cros_ec_cmd_xfer(ec_dev, msg); in cros_ec_cmd_xfer_status()
726 dev_dbg(ec_dev->dev, "Command result (err: %d [%d])\n", in cros_ec_cmd_xfer_status()
735 static int get_next_event_xfer(struct cros_ec_device *ec_dev, in get_next_event_xfer() argument
747 ret = cros_ec_cmd_xfer_status(ec_dev, msg); in get_next_event_xfer()
749 ec_dev->event_size = ret - 1; in get_next_event_xfer()
750 ec_dev->event_data = *event; in get_next_event_xfer()
756 static int get_next_event(struct cros_ec_device *ec_dev) in get_next_event() argument
762 int cmd_version = ec_dev->mkbp_event_supported - 1; in get_next_event()
765 if (ec_dev->suspended) { in get_next_event()
766 dev_dbg(ec_dev->dev, "Device suspended.\n"); in get_next_event()
783 return get_next_event_xfer(ec_dev, msg, event, cmd_version, size); in get_next_event()
786 static int get_keyboard_state_event(struct cros_ec_device *ec_dev) in get_keyboard_state_event() argument
789 sizeof(ec_dev->event_data.data)]; in get_keyboard_state_event()
794 msg->insize = sizeof(ec_dev->event_data.data); in get_keyboard_state_event()
797 ec_dev->event_size = cros_ec_cmd_xfer_status(ec_dev, msg); in get_keyboard_state_event()
798 ec_dev->event_data.event_type = EC_MKBP_EVENT_KEY_MATRIX; in get_keyboard_state_event()
799 memcpy(&ec_dev->event_data.data, msg->data, in get_keyboard_state_event()
800 sizeof(ec_dev->event_data.data)); in get_keyboard_state_event()
802 return ec_dev->event_size; in get_keyboard_state_event()
823 int cros_ec_get_next_event(struct cros_ec_device *ec_dev, in cros_ec_get_next_event() argument
848 if (!ec_dev->mkbp_event_supported) in cros_ec_get_next_event()
849 return get_keyboard_state_event(ec_dev); in cros_ec_get_next_event()
851 ret = get_next_event(ec_dev); in cros_ec_get_next_event()
860 dev_dbg(ec_dev->dev, in cros_ec_get_next_event()
862 mutex_lock(&ec_dev->lock); in cros_ec_get_next_event()
863 ret = cros_ec_get_host_command_version_mask(ec_dev, in cros_ec_get_next_event()
866 mutex_unlock(&ec_dev->lock); in cros_ec_get_next_event()
877 ec_dev->mkbp_event_supported = fls(ver_mask); in cros_ec_get_next_event()
878 dev_dbg(ec_dev->dev, "MKBP support version changed to %u\n", in cros_ec_get_next_event()
879 ec_dev->mkbp_event_supported - 1); in cros_ec_get_next_event()
882 ret = get_next_event(ec_dev); in cros_ec_get_next_event()
889 *has_more_events = ec_dev->event_data.event_type & in cros_ec_get_next_event()
891 ec_dev->event_data.event_type &= EC_MKBP_EVENT_TYPE_MASK; in cros_ec_get_next_event()
894 event_type = ec_dev->event_data.event_type; in cros_ec_get_next_event()
895 host_event = cros_ec_get_host_event(ec_dev); in cros_ec_get_next_event()
908 if (!(host_event & ec_dev->host_event_wake_mask)) in cros_ec_get_next_event()
927 u32 cros_ec_get_host_event(struct cros_ec_device *ec_dev) in cros_ec_get_host_event() argument
931 if (!ec_dev->mkbp_event_supported) in cros_ec_get_host_event()
934 if (ec_dev->event_data.event_type != EC_MKBP_EVENT_HOST_EVENT) in cros_ec_get_host_event()
937 if (ec_dev->event_size != sizeof(host_event)) { in cros_ec_get_host_event()
938 dev_warn(ec_dev->dev, "Invalid host event size\n"); in cros_ec_get_host_event()
942 host_event = get_unaligned_le32(&ec_dev->event_data.data.host_event); in cros_ec_get_host_event()
966 ret = cros_ec_cmd(ec->ec_dev, 0, EC_CMD_GET_FEATURES + ec->cmd_offset, in cros_ec_check_features()
998 struct cros_ec_device *ec_dev = ec->ec_dev; in cros_ec_get_sensor_count() local
1014 ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); in cros_ec_get_sensor_count()
1027 if (sensor_count < 0 && ec->cmd_offset == 0 && ec_dev->cmd_readmem) { in cros_ec_get_sensor_count()
1028 ret = ec_dev->cmd_readmem(ec_dev, EC_MEMMAP_ACC_STATUS, in cros_ec_get_sensor_count()
1060 int cros_ec_cmd(struct cros_ec_device *ec_dev, in cros_ec_cmd() argument
1083 ret = cros_ec_cmd_xfer_status(ec_dev, msg); in cros_ec_cmd()
1105 int cros_ec_cmd_readmem(struct cros_ec_device *ec_dev, u8 offset, u8 size, void *dest) in cros_ec_cmd_readmem() argument
1112 if (ec_dev->cmd_readmem) in cros_ec_cmd_readmem()
1113 return ec_dev->cmd_readmem(ec_dev, offset, size, dest); in cros_ec_cmd_readmem()
1117 return cros_ec_cmd(ec_dev, 0, EC_CMD_READ_MEMMAP, in cros_ec_cmd_readmem()
1130 int cros_ec_get_cmd_versions(struct cros_ec_device *ec_dev, u16 cmd) in cros_ec_get_cmd_versions() argument
1139 ret = cros_ec_cmd(ec_dev, 0, EC_CMD_GET_CMD_VERSIONS, in cros_ec_get_cmd_versions()
1143 ret = cros_ec_cmd(ec_dev, 1, EC_CMD_GET_CMD_VERSIONS, in cros_ec_get_cmd_versions()