The following commit has been merged in the batman-adv/next branch: commit 0f941777c696e43e773b713a0078599aa22b3551 Author: Rafał Miłecki zajec5@gmail.com Date: Thu Jul 26 00:07:37 2012 +0200

b43: add helper waiting for given value in radio reg

Signed-off-by: Rafał Miłecki zajec5@gmail.com Signed-off-by: John W. Linville linville@tuxdriver.com

diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c index f627cef..f01676a 100644 --- a/drivers/net/wireless/b43/phy_common.c +++ b/drivers/net/wireless/b43/phy_common.c @@ -240,6 +240,21 @@ void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set) (b43_radio_read16(dev, offset) & mask) | set); }

+bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask, + u16 value, int delay, int timeout) +{ + u16 val; + int i; + + for (i = 0; i < timeout; i += delay) { + val = b43_radio_read(dev, offset); + if ((val & mask) == value) + return true; + udelay(delay); + } + return false; +} + u16 b43_phy_read(struct b43_wldev *dev, u16 reg) { assert_mac_suspended(dev); diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h index 9233b13..f1b9993 100644 --- a/drivers/net/wireless/b43/phy_common.h +++ b/drivers/net/wireless/b43/phy_common.h @@ -365,6 +365,12 @@ void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set); void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set);

/** + * b43_radio_wait_value - Waits for a given value in masked register read + */ +bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask, + u16 value, int delay, int timeout); + +/** * b43_radio_lock - Lock firmware radio register access */ void b43_radio_lock(struct b43_wldev *dev); diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index e49d847..0963d59 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -753,8 +753,6 @@ static void b43_radio_init2055_post(struct b43_wldev *dev) { struct b43_phy_n *nphy = dev->phy.n; struct ssb_sprom *sprom = dev->dev->bus_sprom; - int i; - u16 val; bool workaround = false;

if (sprom->revision < 4) @@ -777,15 +775,7 @@ static void b43_radio_init2055_post(struct b43_wldev *dev) b43_radio_set(dev, B2055_CAL_MISC, 0x1); msleep(1); b43_radio_set(dev, B2055_CAL_MISC, 0x40); - for (i = 0; i < 200; i++) { - val = b43_radio_read(dev, B2055_CAL_COUT2); - if (val & 0x80) { - i = 0; - break; - } - udelay(10); - } - if (i) + if (!b43_radio_wait_value(dev, B2055_CAL_COUT2, 0x80, 0x80, 10, 2000)) b43err(dev->wl, "radio post init timeout\n"); b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F); b43_switch_channel(dev, dev->phy.channel);