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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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7b8a466e7c
For the transmission of data a protocol push hdr is performed followed by a bus txdata call. For the new protocol msgbuf this is not workable. Since they are already "loosely" coupled for bcdc protocol they are combined. This means that txdata will go "through" the protocol layer and a seperate protocol push hdr will not be needed anymore. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (c) 2013 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/netdevice.h>
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#include <brcmu_wifi.h>
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#include "dhd.h"
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#include "dhd_dbg.h"
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#include "proto.h"
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#include "bcdc.h"
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int brcmf_proto_attach(struct brcmf_pub *drvr)
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{
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struct brcmf_proto *proto;
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proto = kzalloc(sizeof(*proto), GFP_ATOMIC);
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if (!proto)
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goto fail;
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drvr->proto = proto;
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/* BCDC protocol is only protocol supported for the moment */
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if (brcmf_proto_bcdc_attach(drvr))
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goto fail;
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if ((proto->txdata == NULL) || (proto->hdrpull == NULL) ||
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(proto->query_dcmd == NULL) || (proto->set_dcmd == NULL)) {
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brcmf_err("Not all proto handlers have been installed\n");
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goto fail;
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}
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return 0;
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fail:
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kfree(proto);
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drvr->proto = NULL;
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return -ENOMEM;
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}
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void brcmf_proto_detach(struct brcmf_pub *drvr)
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{
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if (drvr->proto) {
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brcmf_proto_bcdc_detach(drvr);
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kfree(drvr->proto);
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drvr->proto = NULL;
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}
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}
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