From 845e03c93dda2c00ffb5c68a1f7c8efc412d7c1a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 23 Mar 2011 20:57:25 +0100 Subject: 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 Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/init.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/net/wireless/ath/ath9k/init.c') 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) { -- cgit v1.1