1/*
2 * Copyright (c) 2013 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17
18 #include <linux/types.h>
19#include <linux/slab.h>
20#include <linux/netdevice.h>
21
22#include <brcmu_wifi.h>
23#include "core.h"
24#include "bus.h"
25#include "debug.h"
26#include "proto.h"
27#include "bcdc.h"
28#include "msgbuf.h"
29
30
31int brcmf_proto_attach(struct brcmf_pub *drvr)
32{
33	struct brcmf_proto *proto;
34
35	brcmf_dbg(TRACE, "Enter\n");
36
37	proto = kzalloc(sizeof(*proto), GFP_ATOMIC);
38	if (!proto)
39		goto fail;
40
41	drvr->proto = proto;
42
43	if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC) {
44		if (brcmf_proto_bcdc_attach(drvr))
45			goto fail;
46	} else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF) {
47		if (brcmf_proto_msgbuf_attach(drvr))
48			goto fail;
49	} else {
50		brcmf_err("Unsupported proto type %d\n",
51			  drvr->bus_if->proto_type);
52		goto fail;
53	}
54	if ((proto->txdata == NULL) || (proto->hdrpull == NULL) ||
55	    (proto->query_dcmd == NULL) || (proto->set_dcmd == NULL) ||
56	    (proto->configure_addr_mode == NULL) ||
57	    (proto->delete_peer == NULL) || (proto->add_tdls_peer == NULL)) {
58		brcmf_err("Not all proto handlers have been installed\n");
59		goto fail;
60	}
61	return 0;
62
63fail:
64	kfree(proto);
65	drvr->proto = NULL;
66	return -ENOMEM;
67}
68
69void brcmf_proto_detach(struct brcmf_pub *drvr)
70{
71	brcmf_dbg(TRACE, "Enter\n");
72
73	if (drvr->proto) {
74		if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
75			brcmf_proto_bcdc_detach(drvr);
76		else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF)
77			brcmf_proto_msgbuf_detach(drvr);
78		kfree(drvr->proto);
79		drvr->proto = NULL;
80	}
81}
82