1 /* 2 * Copyright (C) ST-Ericsson AB 2010 3 * Author: Sjur Brendeland/sjur.brandeland@stericsson.com 4 * License terms: GNU General Public License (GPL) version 2 5 */ 6 7 #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__ 8 9 #include <linux/stddef.h> 10 #include <linux/slab.h> 11 #include <net/caif/caif_layer.h> 12 #include <net/caif/cfsrvl.h> 13 #include <net/caif/cfpkt.h> 14 15 static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt); 16 static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt); 17 18 struct cflayer *cfdbgl_create(u8 channel_id, struct dev_info *dev_info) 19 { 20 struct cfsrvl *dbg = kmalloc(sizeof(struct cfsrvl), GFP_ATOMIC); 21 if (!dbg) { 22 pr_warn("Out of memory\n"); 23 return NULL; 24 } 25 caif_assert(offsetof(struct cfsrvl, layer) == 0); 26 memset(dbg, 0, sizeof(struct cfsrvl)); 27 cfsrvl_init(dbg, channel_id, dev_info, false); 28 dbg->layer.receive = cfdbgl_receive; 29 dbg->layer.transmit = cfdbgl_transmit; 30 snprintf(dbg->layer.name, CAIF_LAYER_NAME_SZ - 1, "dbg%d", channel_id); 31 return &dbg->layer; 32 } 33 34 static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt) 35 { 36 return layr->up->receive(layr->up, pkt); 37 } 38 39 static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt) 40 { 41 return layr->dn->transmit(layr->dn, pkt); 42 } 43