nexmon – Blame information for rev 1

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1 office 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  
31 int 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  
63 fail:
64 kfree(proto);
65 drvr->proto = NULL;
66 return -ENOMEM;
67 }
68  
69 void 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 }