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From: John Crispin <john@phrozen.org>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: Shashidhar Lakkavalli <slakkavalli@datto.com>,
	ath11k@lists.infradead.org, John Crispin <john@phrozen.org>
Subject: [PATCH V6 03/11] ath11k: move phymode selection from function to array lookup
Date: Tue, 28 May 2019 08:47:55 +0200	[thread overview]
Message-ID: <20190528064803.24419-4-john@phrozen.org> (raw)
In-Reply-To: <20190528064803.24419-1-john@phrozen.org>

With HE support getting added, the approach of using functions will quickly
get convoluted. Change the code to use an array lookup function instead.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 117 ++++++++++++--------------
 include/uapi/linux/nl80211.h          |   4 +
 2 files changed, 57 insertions(+), 64 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 1c16f7e6ccce..c76204b0a76e 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -105,6 +105,52 @@ static struct ieee80211_rate ath11k_legacy_rates[] = {
 	{ .bitrate = 540, .hw_value = ATH11K_HW_RATE_OFDM_54M },
 };
 
+static const int
+ath11k_phymodes[NUM_NL80211_BANDS][2][__NL80211_CHAN_WIDTH_NUM] = {
+	[NL80211_BAND_2GHZ] = {
+		{
+			[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11G,
+			[NL80211_CHAN_WIDTH_20] = MODE_11NG_HT20,
+			[NL80211_CHAN_WIDTH_40] = MODE_11NG_HT40,
+			[NL80211_CHAN_WIDTH_80] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_80P80] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_160] = MODE_UNKNOWN,
+		}, {
+			[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11G,
+			[NL80211_CHAN_WIDTH_20] = MODE_11AX_HE20_2G,
+			[NL80211_CHAN_WIDTH_40] = MODE_11AX_HE40_2G,
+			[NL80211_CHAN_WIDTH_80] = MODE_11AX_HE80_2G,
+			[NL80211_CHAN_WIDTH_80P80] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_160] = MODE_UNKNOWN,
+		},
+	},
+	[NL80211_BAND_5GHZ] = {
+		{
+			[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11A,
+			[NL80211_CHAN_WIDTH_20] = MODE_11AC_VHT20,
+			[NL80211_CHAN_WIDTH_40] = MODE_11AC_VHT40,
+			[NL80211_CHAN_WIDTH_80] = MODE_11AC_VHT80,
+			[NL80211_CHAN_WIDTH_160] = MODE_11AC_VHT160,
+			[NL80211_CHAN_WIDTH_80P80] = MODE_11AC_VHT80_80,
+		}, {
+			[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11A,
+			[NL80211_CHAN_WIDTH_20] = MODE_11AX_HE20,
+			[NL80211_CHAN_WIDTH_40] = MODE_11AX_HE40,
+			[NL80211_CHAN_WIDTH_80] = MODE_11AX_HE80,
+			[NL80211_CHAN_WIDTH_160] = MODE_11AX_HE160,
+			[NL80211_CHAN_WIDTH_80P80] = MODE_11AX_HE80_80,
+		},
+	},
+};
+
 #define ATH11K_MAC_FIRST_OFDM_RATE_IDX 4
 #define ath11k_g_rates ath11k_legacy_rates
 #define ath11k_g_rates_size (ARRAY_SIZE(ath11k_legacy_rates))
@@ -151,69 +197,6 @@ static int get_num_chains(u32 mask)
 	return num_chains;
 }
 
-static inline enum wmi_phy_mode
-chan_to_phymode(const struct cfg80211_chan_def *chandef)
-{
-	enum wmi_phy_mode phymode = MODE_UNKNOWN;
-
-	switch (chandef->chan->band) {
-	case NL80211_BAND_2GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-			if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
-				phymode = MODE_11B;
-			else
-				phymode = MODE_11G;
-			break;
-		case NL80211_CHAN_WIDTH_20:
-			phymode = MODE_11NG_HT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			phymode = MODE_11NG_HT40;
-			break;
-		case NL80211_CHAN_WIDTH_5:
-		case NL80211_CHAN_WIDTH_10:
-		case NL80211_CHAN_WIDTH_80:
-		case NL80211_CHAN_WIDTH_80P80:
-		case NL80211_CHAN_WIDTH_160:
-			phymode = MODE_UNKNOWN;
-			break;
-		}
-		break;
-	case NL80211_BAND_5GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-			phymode = MODE_11A;
-			break;
-		case NL80211_CHAN_WIDTH_20:
-			phymode = MODE_11AC_VHT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			phymode = MODE_11AC_VHT40;
-			break;
-		case NL80211_CHAN_WIDTH_80:
-			phymode = MODE_11AC_VHT80;
-			break;
-		case NL80211_CHAN_WIDTH_160:
-			phymode = MODE_11AC_VHT160;
-			break;
-		case NL80211_CHAN_WIDTH_80P80:
-			phymode = MODE_11AC_VHT80_80;
-			break;
-		case NL80211_CHAN_WIDTH_5:
-		case NL80211_CHAN_WIDTH_10:
-			phymode = MODE_UNKNOWN;
-			break;
-		}
-		break;
-	default:
-		break;
-	}
-
-	WARN_ON(phymode == MODE_UNKNOWN);
-	return phymode;
-}
-
 u8 ath11k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
 			     u32 bitrate)
 {
@@ -3884,6 +3867,7 @@ ath11k_mac_vdev_start_restart(struct ath11k_vif *arvif,
 	struct ath11k_base *ab = ar->ab;
 	struct wmi_vdev_start_req_arg arg = {};
 	int ret = 0;
+	int he_support = arvif->vif->bss_conf.he_support;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
@@ -3896,7 +3880,12 @@ ath11k_mac_vdev_start_restart(struct ath11k_vif *arvif,
 	arg.channel.freq = chandef->chan->center_freq;
 	arg.channel.band_center_freq1 = chandef->center_freq1;
 	arg.channel.band_center_freq2 = chandef->center_freq2;
-	arg.channel.mode = chan_to_phymode(chandef);
+	arg.channel.mode =
+		ath11k_phymodes[chandef->chan->band][he_support][chandef->width];
+	if (arg.channel.mode == MODE_11G &&
+	    chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
+		arg.channel.mode = MODE_11B;
+	WARN_ON(arg.channel.mode == MODE_UNKNOWN);
 
 	arg.channel.min_power = 0;
 	arg.channel.max_power = chandef->chan->max_power * 2;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index dd4f86ee286e..b6e29161ec8b 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4162,6 +4162,10 @@ enum nl80211_chan_width {
 	NL80211_CHAN_WIDTH_160,
 	NL80211_CHAN_WIDTH_5,
 	NL80211_CHAN_WIDTH_10,
+
+	/* keep last */
+	__NL80211_CHAN_WIDTH_NUM,
+	NL80211_CHAN_WIDTH_MAX = __NL80211_CHAN_WIDTH_NUM - 1,
 };
 
 /**
-- 
2.20.1


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ath11k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath11k

  parent reply	other threads:[~2019-05-28  6:48 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-28  6:47 [PATCH V6 00/11] ath11k: add HE support John Crispin
2019-05-28  6:47 ` [PATCH V6 01/11] mac80211: propagate HE operation info into bss_conf John Crispin
2019-05-28  6:47 ` [PATCH V6 02/11] ath11k: fix some whitespace errors John Crispin
2019-05-28  6:47 ` John Crispin [this message]
2019-05-29 15:47   ` [PATCH V6 03/11] ath11k: move phymode selection from function to array lookup Kalle Valo
2019-05-28  6:47 ` [PATCH V6 04/11] ath11k: add HE handling to the debug code John Crispin
2019-05-28  6:47 ` [PATCH V6 05/11] ath11k: extend reading of FW capabilities John Crispin
2019-05-28  6:47 ` [PATCH V6 06/11] ath11k: add defines for max MCS rates per phymode John Crispin
2019-05-28  6:47 ` [PATCH V6 07/11] ath11k: handle rx status for HE frames John Crispin
2019-05-28  6:48 ` [PATCH V6 08/11] ath11k: add HE support John Crispin
2019-05-28  6:48 ` [PATCH V6 09/11] ath11k: add sta_statistics callback John Crispin
2019-05-29 15:30   ` Kalle Valo
2019-05-28  6:48 ` [PATCH V6 10/11] ath11k: properly convert bw John Crispin
2019-05-29 15:31   ` Kalle Valo
2019-05-28  6:48 ` [PATCH V6 11/11] ath11k: add HE rate reporting John Crispin

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