diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2011-08-23 01:50:14 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-24 22:57:18 +0400 |
| commit | 7ad0ce3576edb2ea65bd5c93a83c4a6afaa1dd76 (patch) | |
| tree | f5b0342d0446524d76437b938385c1ae93c1e5a3 /drivers/net/wireless/rtlwifi/base.c | |
| parent | f750323009b6540cc614304fd784300b49506797 (diff) | |
| download | linux-7ad0ce3576edb2ea65bd5c93a83c4a6afaa1dd76.tar.xz | |
rtlwifi: Install updated rate-mapping routine
In preparation for fixing the rate-mapping situation, place a driver-agnostic
version in rtlwifi. This one contains the updated rate incormation.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtlwifi/base.c')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/base.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 0b598db38da9..098fc557a88d 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -664,6 +664,167 @@ static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw) return hw_rate; } +/* mac80211's rate_idx is like this: + * + * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ + * + * B/G rate: + * (rx_status->flag & RX_FLAG_HT) = 0, + * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11, + * + * N rate: + * (rx_status->flag & RX_FLAG_HT) = 1, + * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 + * + * 5G band:rx_status->band == IEEE80211_BAND_5GHZ + * A rate: + * (rx_status->flag & RX_FLAG_HT) = 0, + * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7, + * + * N rate: + * (rx_status->flag & RX_FLAG_HT) = 1, + * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 + */ +int rtlwifi_rate_mapping(struct ieee80211_hw *hw, + bool isht, u8 desc_rate, bool first_ampdu) +{ + int rate_idx; + + if (false == isht) { + if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) { + switch (desc_rate) { + case DESC92_RATE1M: + rate_idx = 0; + break; + case DESC92_RATE2M: + rate_idx = 1; + break; + case DESC92_RATE5_5M: + rate_idx = 2; + break; + case DESC92_RATE11M: + rate_idx = 3; + break; + case DESC92_RATE6M: + rate_idx = 4; + break; + case DESC92_RATE9M: + rate_idx = 5; + break; + case DESC92_RATE12M: + rate_idx = 6; + break; + case DESC92_RATE18M: + rate_idx = 7; + break; + case DESC92_RATE24M: + rate_idx = 8; + break; + case DESC92_RATE36M: + rate_idx = 9; + break; + case DESC92_RATE48M: + rate_idx = 10; + break; + case DESC92_RATE54M: + rate_idx = 11; + break; + default: + rate_idx = 0; + break; + } + } else { + switch (desc_rate) { + case DESC92_RATE6M: + rate_idx = 0; + break; + case DESC92_RATE9M: + rate_idx = 1; + break; + case DESC92_RATE12M: + rate_idx = 2; + break; + case DESC92_RATE18M: + rate_idx = 3; + break; + case DESC92_RATE24M: + rate_idx = 4; + break; + case DESC92_RATE36M: + rate_idx = 5; + break; + case DESC92_RATE48M: + rate_idx = 6; + break; + case DESC92_RATE54M: + rate_idx = 7; + break; + default: + rate_idx = 0; + break; + } + } + + } else { + + switch (desc_rate) { + case DESC92_RATEMCS0: + rate_idx = 0; + break; + case DESC92_RATEMCS1: + rate_idx = 1; + break; + case DESC92_RATEMCS2: + rate_idx = 2; + break; + case DESC92_RATEMCS3: + rate_idx = 3; + break; + case DESC92_RATEMCS4: + rate_idx = 4; + break; + case DESC92_RATEMCS5: + rate_idx = 5; + break; + case DESC92_RATEMCS6: + rate_idx = 6; + break; + case DESC92_RATEMCS7: + rate_idx = 7; + break; + case DESC92_RATEMCS8: + rate_idx = 8; + break; + case DESC92_RATEMCS9: + rate_idx = 9; + break; + case DESC92_RATEMCS10: + rate_idx = 10; + break; + case DESC92_RATEMCS11: + rate_idx = 11; + break; + case DESC92_RATEMCS12: + rate_idx = 12; + break; + case DESC92_RATEMCS13: + rate_idx = 13; + break; + case DESC92_RATEMCS14: + rate_idx = 14; + break; + case DESC92_RATEMCS15: + rate_idx = 15; + break; + default: + rate_idx = 0; + break; + } + } + return rate_idx; +} +EXPORT_SYMBOL(rtlwifi_rate_mapping); + void rtl_get_tcb_desc(struct ieee80211_hw *hw, struct ieee80211_tx_info *info, struct ieee80211_sta *sta, |