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qcacld-3.0: Update channel width and center freq

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qcacld-2.0 to qcacld-3.0 propagation
"cfg80211_chandef_create" doesn't support channel width "HT80". If
create chandef by it, channel width set to HT40 when working on
SAP VHT80 mode. Which cause a mismatch between supplicant and host
driver. Update channel width and center freq for VHT80 mode

Change-Id: I9c5734fca4bcc02436aea8684ca9d0b968eb1dee
CRs-Fixed: 944618
This commit is contained in:
Wu Gao 2016-01-22 10:56:07 +08:00 • committed by Akash Patel
commit d7ff6aef93
1 changed files with 75 additions and 0 deletions
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75
core/hdd/src/wlan_hdd_hostapd.c
View file

@ -619,6 +619,77 @@ hdd_sap_get_phymode(hdd_adapter_t *hostapd_adapter)
}
#endif
/**
* hdd_update_chandef() - Function to update channel width and center freq
* @hostapd_adapter: hostapd adapter
* @chandef: cfg80211 chan def
* @cb_mode: chan offset
*
* This function will be called to update channel width and center freq
*
* Return: None
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0)) || defined(WITH_BACKPORTS)
static inline void
hdd_update_chandef(hdd_adapter_t *hostapd_adapter,
struct cfg80211_chan_def *chandef,
ePhyChanBondState cb_mode)
{
uint16_t ch_width;
hdd_ap_ctx_t *phdd_ap_ctx;
uint8_t center_chan, chan;
phdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(hostapd_adapter);
ch_width = phdd_ap_ctx->sapConfig.acs_cfg.ch_width;
switch (ch_width) {
case eHT_CHANNEL_WIDTH_20MHZ:
case eHT_CHANNEL_WIDTH_40MHZ:
hdd_info("ch_width %d, won't update", ch_width);
break;
case eHT_CHANNEL_WIDTH_80MHZ:
chan = cds_freq_to_chan(chandef->chan->center_freq);
chandef->width = NL80211_CHAN_WIDTH_80;
switch (cb_mode) {
case PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_CENTERED:
case PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW:
center_chan = chan + 2;
break;
case PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW:
center_chan = chan + 6;
break;
case PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH:
case PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_CENTERED:
center_chan = chan - 2;
break;
case PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH:
center_chan = chan - 6;
break;
default:
center_chan = chan;
break;
}
chandef->center_freq1 = cds_chan_to_freq(center_chan);
break;
case eHT_CHANNEL_WIDTH_160MHZ:
default:
/* Todo, please add related codes if support 160MHZ or others */
hdd_err("unsupport ch_width %d", ch_width);
break;
}
}
#else
static inline void
hdd_update_chandef(hdd_adapter_t *hostapd_adapter,
struct cfg80211_chan_def *chandef,
ePhyChanBondState cb_mode)
{
}
#endif
/**
* hdd_chan_change_notify() - Function to notify hostapd about channel change
* @hostapd_adapter hostapd adapter
@ -689,6 +760,10 @@ CDF_STATUS hdd_chan_change_notify(hdd_adapter_t *hostapd_adapter,
cfg80211_chandef_create(&chandef, chan, channel_type);
if ((phy_mode == eCSR_DOT11_MODE_11ac) ||
(phy_mode == eCSR_DOT11_MODE_11ac_ONLY))
hdd_update_chandef(hostapd_adapter, &chandef, cb_mode);
cfg80211_ch_switch_notify(dev, &chandef);
return CDF_STATUS_SUCCESS;