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Commit 486017cc authored by Michal Kazior's avatar Michal Kazior Committed by Kalle Valo
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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: default avatarMichal Kazior <michal.kazior@tieto.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent dcc33098

drivers/net/wireless/ath/ath10k/mac.c

+34 −13
Original line number Diff line number Diff line
@@ -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++;

	}

}