Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-14 16:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

b43legacy: Fix to enhance TX speed

Browse Source 
Recent changes in the specifications have improved the performance
of the BCM4306/2 devices that use b43legacy as the driver. These
"errors" in the specs have been present from the very first implementation
of bcm43xx.

Signed-off-by: Ehud Gavron <gavron@wetwork.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ehud Gavron 2008-09-06 21:30:00 -07:00 committed by John W. Linville
parent c6a2afdacc
commit 940b7a3a6c
1 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/net/wireless/b43legacy/phy.c
View File

@ -595,12 +595,14 @@ static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
0x0035) & 0xFFC0) | 0x0064);
b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
0x005D) & 0xFF80) | 0x000A);
b43legacy_phy_write(dev, 0x5B, 0x0000);
b43legacy_phy_write(dev, 0x5C, 0x0000);
}
if (dev->bad_frames_preempt)
b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
b43legacy_phy_read(dev,
B43legacy_PHY_RADIO_BITFIELD) | (1 << 11));
B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
if (phy->analog == 1) {
b43legacy_phy_write(dev, 0x0026, 0xCE00);
@ -753,7 +755,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
b43legacy_radio_write16(dev, 0x0050, 0x0020);
}
if (phy->radio_rev <= 2) {
b43legacy_radio_write16(dev, 0x007C, 0x0020);
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x005A, 0x0070);
b43legacy_radio_write16(dev, 0x005B, 0x007B);
b43legacy_radio_write16(dev, 0x005C, 0x00B0);
@ -771,7 +773,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
b43legacy_phy_write(dev, 0x002A, 0x8AC0);
b43legacy_phy_write(dev, 0x0038, 0x0668);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
if (phy->radio_rev <= 5)
if (phy->radio_rev == 4 || phy->radio_rev == 5)
b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
0x005D) & 0xFF80) | 0x0003);
if (phy->radio_rev <= 2)
@ -1010,7 +1012,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
b43legacy_phy_initb5(dev);
else
b43legacy_phy_initb6(dev);
if (phy->rev >= 2 || phy->gmode)
if (phy->rev >= 2 && phy->gmode)
b43legacy_phy_inita(dev);
if (phy->rev >= 2) {
@ -1025,18 +1027,22 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
b43legacy_phy_write(dev, 0x0811, 0x0400);
b43legacy_phy_write(dev, 0x0015, 0x00C0);
}
if (phy->rev >= 2 || phy->gmode) {
if (phy->gmode) {
tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
if (tmp == 3 || tmp == 5) {
if (tmp == 3) {
b43legacy_phy_write(dev, 0x04C2, 0x1816);
b43legacy_phy_write(dev, 0x04C3, 0x8606);
}
if (tmp == 4 || tmp == 5) {
b43legacy_phy_write(dev, 0x04C2, 0x1816);
b43legacy_phy_write(dev, 0x04C3, 0x8006);
if (tmp == 5)
b43legacy_phy_write(dev, 0x04CC,
(b43legacy_phy_read(dev,
0x04CC) & 0x00FF) |
0x1F00);
b43legacy_phy_write(dev, 0x04CC,
(b43legacy_phy_read(dev,
0x04CC) & 0x00FF) |
0x1F00);
}
b43legacy_phy_write(dev, 0x047E, 0x0078);
if (phy->rev >= 2)
b43legacy_phy_write(dev, 0x047E, 0x0078);
}
if (phy->radio_rev == 8) {
b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
@ -1078,7 +1084,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
else
b43legacy_phy_write(dev, 0x002F, 0x0202);
}
if (phy->gmode || phy->rev >= 2) {
if (phy->gmode) {
b43legacy_phy_lo_adjust(dev, 0);
b43legacy_phy_write(dev, 0x080F, 0x8078);
}