/* * Copyright (C) ST-Ericsson AB 2010 * Author: Sjur Brendeland/sjur.brandeland@stericsson.com * License terms: GNU General Public License (GPL) version 2 */ #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__ #include <linux/stddef.h> #include <linux/slab.h> #include <net/caif/caif_layer.h> #include <net/caif/cfsrvl.h> #include <net/caif/cfpkt.h> #define container_obj(layr) ((struct cfsrvl *) layr) static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt); static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt); struct cflayer *cfdbgl_create(u8 channel_id, struct dev_info *dev_info) { struct cfsrvl *dbg = kzalloc(sizeof(struct cfsrvl), GFP_ATOMIC); if (!dbg) return NULL; caif_assert(offsetof(struct cfsrvl, layer) == 0); cfsrvl_init(dbg, channel_id, dev_info, false); dbg->layer.receive = cfdbgl_receive; dbg->layer.transmit = cfdbgl_transmit; snprintf(dbg->layer.name, CAIF_LAYER_NAME_SZ - 1, "dbg%d", channel_id); return &dbg->layer; } static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt) { return layr->up->receive(layr->up, pkt); } static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt) { struct cfsrvl *service = container_obj(layr); struct caif_payload_info *info; int ret; if (!cfsrvl_ready(service, &ret)) return ret; /* Add info for MUX-layer to route the packet out */ info = cfpkt_info(pkt); info->channel_id = service->layer.id; info->dev_info = &service->dev_info; return layr->dn->transmit(layr->dn, pkt); }