diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2011-03-23 20:57:25 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-03-30 14:15:19 -0400 |
| commit | 845e03c93dda2c00ffb5c68a1f7c8efc412d7c1a (patch) | |
| tree | 9c48d7b82ef167d9346ef1a3689f636a471c14f2 /drivers/net/wireless/ath/ath9k/init.c | |
| parent | f9f84e96f6d642aa7b337c22cbb7d6f936039fda (diff) | |
| download | op-kernel-dev-845e03c93dda2c00ffb5c68a1f7c8efc412d7c1a.zip op-kernel-dev-845e03c93dda2c00ffb5c68a1f7c8efc412d7c1a.tar.gz | |
ath9k_hw: add a new register op for read-mask-write
Reduces the number of calls to register ops. On MIPS this reduces the
ath9k_hw binary size from 321k down to 310k
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index da114c2..db1b7553 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -196,6 +196,28 @@ static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) return val; } +static unsigned int ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + unsigned long uninitialized_var(flags); + u32 val; + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) + spin_lock_irqsave(&sc->sc_serial_rw, flags); + + val = ioread32(sc->mem + reg_offset); + val &= ~clr; + val |= set; + iowrite32(val, sc->mem + reg_offset); + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) + spin_unlock_irqrestore(&sc->sc_serial_rw, flags); + + return val; +} + /**************************/ /* Initialization */ /**************************/ @@ -548,6 +570,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, ah->hw_version.subsysid = subsysid; ah->reg_ops.read = ath9k_ioread32; ah->reg_ops.write = ath9k_iowrite32; + ah->reg_ops.rmw = ath9k_reg_rmw; sc->sc_ah = ah; if (!pdata) { |
