1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) ST-Ericsson AB 2010
34 	dgm->layer.receive = cfdgml_receive;  in cfdgml_create()
35 	dgm->layer.transmit = cfdgml_transmit;  in cfdgml_create()
36 	snprintf(dgm->layer.name, CAIF_LAYER_NAME_SZ, "dgm%d", channel_id);  in cfdgml_create()
37 	return &dgm->layer;  in cfdgml_create()
42 	u8 cmd = -1;  in cfdgml_receive()
45 	caif_assert(layr->up != NULL);  in cfdgml_receive()
46 	caif_assert(layr->receive != NULL);  in cfdgml_receive()
47 	caif_assert(layr->ctrlcmd != NULL);  in cfdgml_receive()
52 		return -EPROTO;  in cfdgml_receive()
59 			return -EPROTO;  in cfdgml_receive()
61 		ret = layr->up->receive(layr->up, pkt);  in cfdgml_receive()
67 		layr->ctrlcmd(layr, CAIF_CTRLCMD_FLOW_OFF_IND, 0);  in cfdgml_receive()
71 		layr->ctrlcmd(layr, CAIF_CTRLCMD_FLOW_ON_IND, 0);  in cfdgml_receive()
77 		return -EPROTO;  in cfdgml_receive()
97 		return -EMSGSIZE;  in cfdgml_transmit()
101 	packet_type = 0x08; /* B9 set - UNCLASSIFIED */  in cfdgml_transmit()
104 	/* Add info for MUX-layer to route the packet out. */  in cfdgml_transmit()
106 	info->channel_id = service->layer.id;  in cfdgml_transmit()
110 	info->hdr_len = 4;  in cfdgml_transmit()
111 	info->dev_info = &service->dev_info;  in cfdgml_transmit()
112 	return layr->dn->transmit(layr->dn, pkt);  in cfdgml_transmit()