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mwifiex: improvement in cfg80211 set_bitrate_mask handler

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This patch configures data rates to firmware using bitrate mask
provided by cfg80211.

Earlier we used to only update band information in this handler
which will be used later for ibss network. Due to recent
modifications in ibss join code we don't need to do that.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar 2012-07-13 20:09:33 -07:00 committed by John W. Linville
parent 05910f4a22
commit 433c3990a3
2 changed files with 26 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

59
drivers/net/wireless/mwifiex/cfg80211.c
View file

@ -753,8 +753,8 @@ static const u32 mwifiex_cipher_suites[] = {
/*
* CFG802.11 operation handler for setting bit rates.
*
* Function selects legacy bang B/G/BG from corresponding bitrates selection.
* Currently only 2.4GHz band is supported.
* Function configures data rates to firmware using bitrate mask
* provided by cfg80211.
*/
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
@ -762,43 +762,36 @@ static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
const struct cfg80211_bitrate_mask *mask)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int index = 0, mode = 0, i;
struct mwifiex_adapter *adapter = priv->adapter;
u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
enum ieee80211_band band;
/* Currently only 2.4GHz is supported */
for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
/*
* Rates below 6 Mbps in the table are CCK rates; 802.11b
* and from 6 they are OFDM; 802.11G
*/
if (mwifiex_rates[i].bitrate == 60) {
index = 1 << i;
break;
}
if (!priv->media_connected) {
dev_err(priv->adapter->dev,
"Can not set Tx data rate in disconnected state\n");
return -EINVAL;
}
if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
mode = BAND_B;
} else {
mode = BAND_G;
if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
mode |= BAND_B;
}
band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
adapter->config_bands = mode;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
adapter->adhoc_start_band = mode;
adapter->adhoc_11n_enabled = false;
}
}
adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
adapter->channel_type = NL80211_CHAN_NO_HT;
memset(bitmap_rates, 0, sizeof(bitmap_rates));
wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
(mode & BAND_B) ? "b" : "", (mode & BAND_G) ? "g" : "");
/* Fill HR/DSSS rates. */
if (band == IEEE80211_BAND_2GHZ)
bitmap_rates[0] = mask->control[band].legacy & 0x000f;
return 0;
/* Fill OFDM rates */
if (band == IEEE80211_BAND_2GHZ)
bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
else
bitmap_rates[1] = mask->control[band].legacy;
/* Fill MCS rates */
bitmap_rates[2] = mask->control[band].mcs[0];
if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
HostCmd_ACT_GEN_SET, 0, bitmap_rates);
}
/*

1
drivers/net/wireless/mwifiex/main.h
View file

@ -678,7 +678,6 @@ struct mwifiex_adapter {
u8 hw_dev_mcs_support;
u8 adhoc_11n_enabled;
u8 sec_chan_offset;
enum nl80211_channel_type channel_type;
struct mwifiex_dbg dbg;
u8 arp_filter[ARP_FILTER_MAX_BUF_SIZE];
u32 arp_filter_size;