* [PATCH] b43: Refactor and update antenna diversity for A/G-PHY
@ 2009-08-28 19:37 Gábor Stefanik
0 siblings, 0 replies; only message in thread
From: Gábor Stefanik @ 2009-08-28 19:37 UTC (permalink / raw)
To: John Linville, Michael Buesch
Cc: Larry Finger, Broadcom Wireless, linux-wireless
-Make use of the b43_phy_set/mask/maskset helpers.
-Fix a few errors in the code.
-Make the code more readable.
Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
---
The "phy->analog == 3" to "phy->rev == 3" change in A-PHY is intentional,
it's a bugfix/spec conformance fix.
drivers/net/wireless/b43/phy_a.c | 48 ++++++++++----------------------
drivers/net/wireless/b43/phy_g.c | 55 +++++++++++++++----------------------
2 files changed, 37 insertions(+), 66 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_a.c b/drivers/net/wireless/b43/phy_a.c
index 809ec97..d90217c 100644
--- a/drivers/net/wireless/b43/phy_a.c
+++ b/drivers/net/wireless/b43/phy_a.c
@@ -518,58 +518,40 @@ static unsigned int b43_aphy_op_get_default_chan(struct b43_wldev *dev)
static void b43_aphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
{//TODO
struct b43_phy *phy = &dev->phy;
- u64 hf;
u16 tmp;
int autodiv = 0;
if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
autodiv = 1;
- hf = b43_hf_read(dev);
- hf &= ~B43_HF_ANTDIVHELP;
- b43_hf_write(dev, hf);
+ b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
- tmp = b43_phy_read(dev, B43_PHY_BBANDCFG);
- tmp &= ~B43_PHY_BBANDCFG_RXANT;
- tmp |= (autodiv ? B43_ANTENNA_AUTO1 : antenna)
- << B43_PHY_BBANDCFG_RXANT_SHIFT;
- b43_phy_write(dev, B43_PHY_BBANDCFG, tmp);
+ b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
+ (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
+ B43_PHY_BBANDCFG_RXANT_SHIFT);
if (autodiv) {
tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
- if (antenna == B43_ANTENNA_AUTO0)
+ if (antenna == B43_ANTENNA_AUTO1)
tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
else
tmp |= B43_PHY_ANTDWELL_AUTODIV1;
b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
}
- if (phy->rev < 3) {
- tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
- tmp = (tmp & 0xFF00) | 0x24;
- b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
- } else {
- tmp = b43_phy_read(dev, B43_PHY_OFDM61);
- tmp |= 0x10;
- b43_phy_write(dev, B43_PHY_OFDM61, tmp);
- if (phy->analog == 3) {
- b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT,
- 0x1D);
- b43_phy_write(dev, B43_PHY_ADIVRELATED,
- 8);
+ if (phy->rev < 3)
+ b43_phy_maskset(dev, B43_PHY_ANTDWELL, 0xFF00, 0x24);
+ else {
+ b43_phy_set(dev, B43_PHY_OFDM61, 0x10);
+ if (phy->rev == 3) {
+ b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT, 0x1D);
+ b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
} else {
- b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT,
- 0x3A);
- tmp =
- b43_phy_read(dev,
- B43_PHY_ADIVRELATED);
- tmp = (tmp & 0xFF00) | 8;
- b43_phy_write(dev, B43_PHY_ADIVRELATED,
- tmp);
+ b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT, 0x3A);
+ b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
}
}
- hf |= B43_HF_ANTDIVHELP;
- b43_hf_write(dev, hf);
+ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
}
static void b43_aphy_op_adjust_txpower(struct b43_wldev *dev)
diff --git a/drivers/net/wireless/b43/phy_g.c b/drivers/net/wireless/b43/phy_g.c
index c6d639d..4b6154b 100644
--- a/drivers/net/wireless/b43/phy_g.c
+++ b/drivers/net/wireless/b43/phy_g.c
@@ -2638,65 +2638,54 @@ static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
{
struct b43_phy *phy = &dev->phy;
- u64 hf;
u16 tmp;
int autodiv = 0;
if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
autodiv = 1;
- hf = b43_hf_read(dev);
- hf &= ~B43_HF_ANTDIVHELP;
- b43_hf_write(dev, hf);
-
- tmp = b43_phy_read(dev, B43_PHY_BBANDCFG);
- tmp &= ~B43_PHY_BBANDCFG_RXANT;
- tmp |= (autodiv ? B43_ANTENNA_AUTO1 : antenna)
- << B43_PHY_BBANDCFG_RXANT_SHIFT;
- b43_phy_write(dev, B43_PHY_BBANDCFG, tmp);
+ b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
+ b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
+ (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
+ B43_PHY_BBANDCFG_RXANT_SHIFT);
+
if (autodiv) {
tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
- if (antenna == B43_ANTENNA_AUTO0)
+ if (antenna == B43_ANTENNA_AUTO1)
tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
else
tmp |= B43_PHY_ANTDWELL_AUTODIV1;
b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
}
+
tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
if (autodiv)
tmp |= B43_PHY_ANTWRSETT_ARXDIV;
else
tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
- if (phy->rev >= 2) {
- tmp = b43_phy_read(dev, B43_PHY_OFDM61);
- tmp |= B43_PHY_OFDM61_10;
- b43_phy_write(dev, B43_PHY_OFDM61, tmp);
- tmp =
- b43_phy_read(dev, B43_PHY_DIVSRCHGAINBACK);
- tmp = (tmp & 0xFF00) | 0x15;
- b43_phy_write(dev, B43_PHY_DIVSRCHGAINBACK,
- tmp);
+ if (autodiv)
+ b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
+ else {
+ b43_phy_mask(dev, B43_PHY_ANTWRSETT,
+ B43_PHY_ANTWRSETT_ARXDIV);
+ }
- if (phy->rev == 2) {
- b43_phy_write(dev, B43_PHY_ADIVRELATED,
- 8);
- } else {
- tmp =
- b43_phy_read(dev,
- B43_PHY_ADIVRELATED);
- tmp = (tmp & 0xFF00) | 8;
- b43_phy_write(dev, B43_PHY_ADIVRELATED,
- tmp);
- }
+ if (phy->rev >= 2) {
+ b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
+ b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
+
+ if (phy->rev == 2)
+ b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
+ else
+ b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
}
if (phy->rev >= 6)
b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
- hf |= B43_HF_ANTDIVHELP;
- b43_hf_write(dev, hf);
+ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
}
static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
--
1.6.2.4
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2009-08-28 19:37 [PATCH] b43: Refactor and update antenna diversity for A/G-PHY Gábor Stefanik
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