From 486017ccbd79d9b5b40bf39ed82a359b6afb2140 Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Mon, 30 Mar 2015 09:51:54 +0300 Subject: [PATCH] ath10k: derive rate from bitrate There's no need to store rate values in hw_value. This frees up the hw_value for better future use. Signed-off-by: Michal Kazior Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 47 +++++++++++++++++++-------- 1 file changed, 34 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 36afe7cb3fc6..9474fc8a341d 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -43,19 +43,19 @@ static struct ieee80211_rate ath10k_rates[] = { /* CCK */ - RATETAB_ENT(10, 0x82, 0), - RATETAB_ENT(20, 0x84, 0), - RATETAB_ENT(55, 0x8b, 0), - RATETAB_ENT(110, 0x96, 0), + RATETAB_ENT(10, 0, 0), + RATETAB_ENT(20, 0, 0), + RATETAB_ENT(55, 0, 0), + RATETAB_ENT(110, 0, 0), /* OFDM */ - RATETAB_ENT(60, 0x0c, 0), - RATETAB_ENT(90, 0x12, 0), - RATETAB_ENT(120, 0x18, 0), - RATETAB_ENT(180, 0x24, 0), - RATETAB_ENT(240, 0x30, 0), - RATETAB_ENT(360, 0x48, 0), - RATETAB_ENT(480, 0x60, 0), - RATETAB_ENT(540, 0x6c, 0), + RATETAB_ENT(60, 0, 0), + RATETAB_ENT(90, 0, 0), + RATETAB_ENT(120, 0, 0), + RATETAB_ENT(180, 0, 0), + RATETAB_ENT(240, 0, 0), + RATETAB_ENT(360, 0, 0), + RATETAB_ENT(480, 0, 0), + RATETAB_ENT(540, 0, 0), }; #define ath10k_a_rates (ath10k_rates + 4) @@ -63,6 +63,25 @@ static struct ieee80211_rate ath10k_rates[] = { #define ath10k_g_rates (ath10k_rates + 0) #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates)) +static bool ath10k_mac_bitrate_is_cck(int bitrate) +{ + switch (bitrate) { + case 10: + case 20: + case 55: + case 110: + return true; + } + + return false; +} + +static u8 ath10k_mac_bitrate_to_rate(int bitrate) +{ + return DIV_ROUND_UP(bitrate, 5) | + (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0); +} + /**********/ /* Crypto */ /**********/ @@ -1736,6 +1755,7 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar, const struct ieee80211_supported_band *sband; const struct ieee80211_rate *rates; u32 ratemask; + u8 rate; int i; lockdep_assert_held(&ar->conf_mutex); @@ -1750,7 +1770,8 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar, if (!(ratemask & 1)) continue; - rateset->rates[rateset->num_rates] = rates->hw_value; + rate = ath10k_mac_bitrate_to_rate(rates->bitrate); + rateset->rates[rateset->num_rates] = rate; rateset->num_rates++; } } -- 2.20.1