From: Felix Fietkau <nbd@nbd.name>
To: linux-wireless@vger.kernel.org
Cc: sgruszka@redhat.com, lorenzo.bianconi@redhat.com
Subject: [PATCH 1/2] mt76: mt76x0: reduce duplication in setting rf bandwidth parameters
Date: Thu, 18 Oct 2018 16:16:44 +0200 [thread overview]
Message-ID: <20181018141645.31484-1-nbd@nbd.name> (raw)
Remove initval table with duplicated registers and driver specific flags
in favor of a function that sets the registers directly
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
.../mediatek/mt76/mt76x0/initvals_phy.h | 45 ------------
.../net/wireless/mediatek/mt76/mt76x0/phy.c | 73 +++++++++++++------
2 files changed, 49 insertions(+), 69 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/initvals_phy.h b/drivers/net/wireless/mediatek/mt76/mt76x0/initvals_phy.h
index 56c6fa73daf5..755dd6749b65 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/initvals_phy.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/initvals_phy.h
@@ -233,51 +233,6 @@ static const struct mt76_reg_pair mt76x0_rf_vga_channel_0_tab[] = {
{ MT_RF(7, 74), 0x00 },
};
-static const struct mt76x0_rf_switch_item mt76x0_rf_bw_switch_tab[] = {
- /* bank, reg bw/band value */
- { MT_RF(0, 17), RF_G_BAND | RF_BW_20, 0x00 },
- { MT_RF(0, 17), RF_G_BAND | RF_BW_40, 0x00 },
- { MT_RF(0, 17), RF_A_BAND | RF_BW_20, 0x00 },
- { MT_RF(0, 17), RF_A_BAND | RF_BW_40, 0x00 },
- { MT_RF(0, 17), RF_A_BAND | RF_BW_80, 0x00 },
- { MT_RF(7, 6), RF_G_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 6), RF_G_BAND | RF_BW_40, 0x1C },
- { MT_RF(7, 6), RF_A_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 6), RF_A_BAND | RF_BW_40, 0x20 },
- { MT_RF(7, 6), RF_A_BAND | RF_BW_80, 0x10 },
- { MT_RF(7, 7), RF_G_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 7), RF_G_BAND | RF_BW_40, 0x20 },
- { MT_RF(7, 7), RF_A_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 7), RF_A_BAND | RF_BW_40, 0x20 },
- { MT_RF(7, 7), RF_A_BAND | RF_BW_80, 0x10 },
- { MT_RF(7, 8), RF_G_BAND | RF_BW_20, 0x03 },
- { MT_RF(7, 8), RF_G_BAND | RF_BW_40, 0x01 },
- { MT_RF(7, 8), RF_A_BAND | RF_BW_20, 0x03 },
- { MT_RF(7, 8), RF_A_BAND | RF_BW_40, 0x01 },
- { MT_RF(7, 8), RF_A_BAND | RF_BW_80, 0x00 },
- { MT_RF(7, 58), RF_G_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 58), RF_G_BAND | RF_BW_40, 0x40 },
- { MT_RF(7, 58), RF_A_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 58), RF_A_BAND | RF_BW_40, 0x40 },
- { MT_RF(7, 58), RF_A_BAND | RF_BW_80, 0x10 },
- { MT_RF(7, 59), RF_G_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 59), RF_G_BAND | RF_BW_40, 0x40 },
- { MT_RF(7, 59), RF_A_BAND | RF_BW_20, 0x40 },
- { MT_RF(7, 59), RF_A_BAND | RF_BW_40, 0x40 },
- { MT_RF(7, 59), RF_A_BAND | RF_BW_80, 0x10 },
- { MT_RF(7, 60), RF_G_BAND | RF_BW_20, 0xAA },
- { MT_RF(7, 60), RF_G_BAND | RF_BW_40, 0xAA },
- { MT_RF(7, 60), RF_A_BAND | RF_BW_20, 0xAA },
- { MT_RF(7, 60), RF_A_BAND | RF_BW_40, 0xAA },
- { MT_RF(7, 60), RF_A_BAND | RF_BW_80, 0xAA },
- { MT_RF(7, 76), RF_BW_20, 0x40 },
- { MT_RF(7, 76), RF_BW_40, 0x40 },
- { MT_RF(7, 76), RF_BW_80, 0x10 },
- { MT_RF(7, 77), RF_BW_20, 0x40 },
- { MT_RF(7, 77), RF_BW_40, 0x40 },
- { MT_RF(7, 77), RF_BW_80, 0x10 },
-};
-
static const struct mt76x0_rf_switch_item mt76x0_rf_band_switch_tab[] = {
/* bank, reg bw/band value */
{ MT_RF(0, 16), RF_G_BAND, 0x20 },
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
index 37e1ead1dc85..10041e673c31 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
@@ -239,17 +239,61 @@ mt76x0_phy_set_band(struct mt76x02_dev *dev, enum nl80211_band band)
}
}
+
+static void mt76x0_phy_rf_switch_band(struct mt76x02_dev *dev,
+ struct cfg80211_chan_def *chandef)
+{
+ enum nl80211_chan_width width = NL80211_CHAN_WIDTH_20;
+ enum nl80211_band band = NL80211_BAND_2GHZ;
+ u8 r6, r7, r8;
+ u8 r58_59_76 = 0x40;
+
+ if (chandef) {
+ band = chandef->chan->band;
+ width = chandef->width;
+ }
+
+ switch (width) {
+ case NL80211_CHAN_WIDTH_80:
+ r6 = r7 = 0x10;
+ r8 = 0x00;
+ r58_59_76 = 0x10;
+ break;
+ case NL80211_CHAN_WIDTH_40:
+ r6 = r7 = 0x20;
+ if (band == NL80211_BAND_2GHZ)
+ r6 = 0x1c;
+ r8 = 0x01;
+ break;
+ default:
+ r6 = r7 = 0x40;
+ r8 = 0x03;
+ break;
+ }
+
+ mt76x0_rf_wr(dev, MT_RF(0, 17), 0x00);
+ mt76x0_rf_wr(dev, MT_RF(7, 6), r6);
+ mt76x0_rf_wr(dev, MT_RF(7, 7), r7);
+ mt76x0_rf_wr(dev, MT_RF(7, 8), r8);
+ mt76x0_rf_wr(dev, MT_RF(7, 58), r58_59_76);
+ mt76x0_rf_wr(dev, MT_RF(7, 59), r58_59_76);
+ mt76x0_rf_wr(dev, MT_RF(7, 60), 0xaa);
+ mt76x0_rf_wr(dev, MT_RF(7, 76), r58_59_76);
+}
+
static void
-mt76x0_phy_set_chan_rf_params(struct mt76x02_dev *dev, u8 channel, u16 rf_bw_band)
+mt76x0_phy_set_chan_rf_params(struct mt76x02_dev *dev,
+ struct cfg80211_chan_def *chandef, u16 rf_bw_band)
{
const struct mt76x0_freq_item *freq_item;
u16 rf_band = rf_bw_band & 0xff00;
- u16 rf_bw = rf_bw_band & 0x00ff;
enum nl80211_band band;
bool b_sdm = false;
u32 mac_reg;
+ u8 channel;
int i;
+ channel = chandef->chan->hw_value;
for (i = 0; i < ARRAY_SIZE(mt76x0_sdm_channel); i++) {
if (channel == mt76x0_sdm_channel[i]) {
b_sdm = true;
@@ -344,18 +388,7 @@ mt76x0_phy_set_chan_rf_params(struct mt76x02_dev *dev, u8 channel, u16 rf_bw_ban
}
}
- for (i = 0; i < ARRAY_SIZE(mt76x0_rf_bw_switch_tab); i++) {
- if (rf_bw == mt76x0_rf_bw_switch_tab[i].bw_band) {
- mt76x0_rf_wr(dev,
- mt76x0_rf_bw_switch_tab[i].rf_bank_reg,
- mt76x0_rf_bw_switch_tab[i].value);
- } else if ((rf_bw == (mt76x0_rf_bw_switch_tab[i].bw_band & 0xFF)) &&
- (rf_band & mt76x0_rf_bw_switch_tab[i].bw_band)) {
- mt76x0_rf_wr(dev,
- mt76x0_rf_bw_switch_tab[i].rf_bank_reg,
- mt76x0_rf_bw_switch_tab[i].value);
- }
- }
+ mt76x0_phy_rf_switch_band(dev, chandef);
for (i = 0; i < ARRAY_SIZE(mt76x0_rf_band_switch_tab); i++) {
if (mt76x0_rf_band_switch_tab[i].bw_band & rf_band) {
@@ -623,7 +656,7 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
ext_cca_chan[ch_group_index]);
mt76x0_phy_set_band(dev, chandef->chan->band);
- mt76x0_phy_set_chan_rf_params(dev, channel, rf_bw_band);
+ mt76x0_phy_set_chan_rf_params(dev, chandef, rf_bw_band);
/* set Japan Tx filter at channel 14 */
if (channel == 14)
@@ -751,15 +784,7 @@ static void mt76x0_phy_rf_init(struct mt76x02_dev *dev)
RF_RANDOM_WRITE(dev, mt76x0_rf_2g_channel_0_tab);
RF_RANDOM_WRITE(dev, mt76x0_rf_5g_channel_0_tab);
RF_RANDOM_WRITE(dev, mt76x0_rf_vga_channel_0_tab);
-
- for (i = 0; i < ARRAY_SIZE(mt76x0_rf_bw_switch_tab); i++) {
- const struct mt76x0_rf_switch_item *item = &mt76x0_rf_bw_switch_tab[i];
-
- if (item->bw_band == RF_BW_20)
- mt76x0_rf_wr(dev, item->rf_bank_reg, item->value);
- else if (((RF_G_BAND | RF_BW_20) & item->bw_band) == (RF_G_BAND | RF_BW_20))
- mt76x0_rf_wr(dev, item->rf_bank_reg, item->value);
- }
+ mt76x0_phy_rf_switch_band(dev, NULL);
for (i = 0; i < ARRAY_SIZE(mt76x0_rf_band_switch_tab); i++) {
if (mt76x0_rf_band_switch_tab[i].bw_band & RF_G_BAND) {
--
2.17.0
next reply other threads:[~2018-10-18 14:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 14:16 Felix Fietkau [this message]
2018-10-18 14:16 ` [PATCH 2/2] mt76: mt76x0: handle chip specific initval differences Felix Fietkau
2018-10-19 8:17 ` [PATCH 1/2] mt76: mt76x0: reduce duplication in setting rf bandwidth parameters Stanislaw Gruszka
2018-10-19 8:55 ` Felix Fietkau
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