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brcmfmac: support get_channel cfg80211 callback 

This is important for brcmfmac as some of released firmwares (e.g.
brcmfmac4366b-pcie.bin) may pick different channel than requested. This
has been tested with BCM4366B1 in D-Link DIR-885L.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rafał Miłecki 2016-05-20 13:38:58 +02:00 committed by Kalle Valo
parent 4712d88a57
commit ee6e7aa383
1 changed files with 63 additions and 0 deletions
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63
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@ -4907,6 +4907,68 @@ exit:
return err;
}
static int brcmf_cfg80211_get_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_chan_def *chandef)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct net_device *ndev = wdev->netdev;
struct brcmf_if *ifp;
struct brcmu_chan ch;
enum nl80211_band band = 0;
enum nl80211_chan_width width = 0;
u32 chanspec;
int freq, err;
if (!ndev)
return -ENODEV;
ifp = netdev_priv(ndev);
err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec);
if (err) {
brcmf_err("chanspec failed (%d)\n", err);
return err;
}
ch.chspec = chanspec;
cfg->d11inf.decchspec(&ch);
switch (ch.band) {
case BRCMU_CHAN_BAND_2G:
band = NL80211_BAND_2GHZ;
break;
case BRCMU_CHAN_BAND_5G:
band = NL80211_BAND_5GHZ;
break;
}
switch (ch.bw) {
case BRCMU_CHAN_BW_80:
width = NL80211_CHAN_WIDTH_80;
break;
case BRCMU_CHAN_BW_40:
width = NL80211_CHAN_WIDTH_40;
break;
case BRCMU_CHAN_BW_20:
width = NL80211_CHAN_WIDTH_20;
break;
case BRCMU_CHAN_BW_80P80:
width = NL80211_CHAN_WIDTH_80P80;
break;
case BRCMU_CHAN_BW_160:
width = NL80211_CHAN_WIDTH_160;
break;
}
freq = ieee80211_channel_to_frequency(ch.control_ch_num, band);
chandef->chan = ieee80211_get_channel(wiphy, freq);
chandef->width = width;
chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band);
chandef->center_freq2 = 0;
return 0;
}
static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
struct wireless_dev *wdev,
enum nl80211_crit_proto_id proto,
@ -5069,6 +5131,7 @@ static struct cfg80211_ops brcmf_cfg80211_ops = {
.mgmt_tx = brcmf_cfg80211_mgmt_tx,
.remain_on_channel = brcmf_p2p_remain_on_channel,
.cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
.get_channel = brcmf_cfg80211_get_channel,
.start_p2p_device = brcmf_p2p_start_device,
.stop_p2p_device = brcmf_p2p_stop_device,
.crit_proto_start = brcmf_cfg80211_crit_proto_start,