From ea5a08cfa5fe9d10333eb7d65a7158ab766dae93 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 24 Aug 2011 11:52:35 +0200 Subject: [PATCH] b43: HT-PHY: read clip state MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We don't know yet when to restore it, implement just reading. We found out what for are that PHY ops by comparing HT with N code. Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy_ht.c | 11 ++++++++++- drivers/net/wireless/b43/phy_ht.h | 4 ++++ 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c index c0e436c16866..4d6345e8ee6b 100644 --- a/drivers/net/wireless/b43/phy_ht.c +++ b/drivers/net/wireless/b43/phy_ht.c @@ -212,6 +212,13 @@ static void b43_phy_ht_force_rf_sequence(struct b43_wldev *dev, u16 rf_seq) b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode); } +static void b43_phy_ht_read_clip_detection(struct b43_wldev *dev, u16 *clip_st) +{ + clip_st[0] = b43_phy_read(dev, B43_PHY_HT_C1_CLIP1THRES); + clip_st[1] = b43_phy_read(dev, B43_PHY_HT_C2_CLIP1THRES); + clip_st[2] = b43_phy_read(dev, B43_PHY_HT_C3_CLIP1THRES); +} + static void b43_phy_ht_bphy_init(struct b43_wldev *dev) { unsigned int i; @@ -335,6 +342,7 @@ static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev) static int b43_phy_ht_op_init(struct b43_wldev *dev) { u16 tmp; + u16 clip_state[3]; b43_phy_ht_tables_init(dev); @@ -443,7 +451,8 @@ static int b43_phy_ht_op_init(struct b43_wldev *dev) /* TODO: PHY op on reg 0xb0 */ - /* TODO: PHY ops on regs 0x40e, 0x44e, 0x48e */ + /* TODO: Should we restore it? Or store it in global PHY info? */ + b43_phy_ht_read_clip_detection(dev, clip_state); if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) b43_phy_ht_bphy_init(dev); diff --git a/drivers/net/wireless/b43/phy_ht.h b/drivers/net/wireless/b43/phy_ht.h index 0661ae266101..6544c4293b34 100644 --- a/drivers/net/wireless/b43/phy_ht.h +++ b/drivers/net/wireless/b43/phy_ht.h @@ -19,6 +19,10 @@ #define B43_PHY_HT_BW5 0x1D2 #define B43_PHY_HT_BW6 0x1D3 +#define B43_PHY_HT_C1_CLIP1THRES B43_PHY_OFDM(0x00E) +#define B43_PHY_HT_C2_CLIP1THRES B43_PHY_OFDM(0x04E) +#define B43_PHY_HT_C3_CLIP1THRES B43_PHY_OFDM(0x08E) + #define B43_PHY_HT_RF_SEQ_MODE B43_PHY_EXTG(0x000) #define B43_PHY_HT_RF_SEQ_TRIG B43_PHY_EXTG(0x003) #define B43_PHY_HT_RF_SEQ_TRIG_RX2TX 0x0001 /* RX2TX */ -- 2.34.1