diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2010-04-15 17:38:48 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-16 15:43:26 -0400 |
| commit | b5c80475abaad015699384ca64ef8229fdd88758 (patch) | |
| tree | 68323f0a04427973085153304167678681f5459b /drivers/net/wireless/ath/ath9k/main.c | |
| parent | c38d4d2eb988717f7a8be24faeada648b5dac52a (diff) | |
| download | lwn-b5c80475abaad015699384ca64ef8229fdd88758.tar.gz lwn-b5c80475abaad015699384ca64ef8229fdd88758.zip | |
ath9k: Add Rx EDMA support
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 494456cd1daa..92f6fdc30076 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -401,6 +401,7 @@ void ath9k_tasklet(unsigned long data) struct ath_common *common = ath9k_hw_common(ah); u32 status = sc->intrstatus; + u32 rxmask; ath9k_ps_wakeup(sc); @@ -410,9 +411,21 @@ void ath9k_tasklet(unsigned long data) return; } - if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { + if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) + rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | + ATH9K_INT_RXORN); + else + rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN); + + if (status & rxmask) { spin_lock_bh(&sc->rx.rxflushlock); - ath_rx_tasklet(sc, 0); + + /* Check for high priority Rx first */ + if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && + (status & ATH9K_INT_RXHP)) + ath_rx_tasklet(sc, 0, true); + + ath_rx_tasklet(sc, 0, false); spin_unlock_bh(&sc->rx.rxflushlock); } @@ -445,6 +458,8 @@ irqreturn_t ath_isr(int irq, void *dev) ATH9K_INT_RXORN | \ ATH9K_INT_RXEOL | \ ATH9K_INT_RX | \ + ATH9K_INT_RXLP | \ + ATH9K_INT_RXHP | \ ATH9K_INT_TX | \ ATH9K_INT_BMISS | \ ATH9K_INT_CST | \ @@ -496,7 +511,8 @@ irqreturn_t ath_isr(int irq, void *dev) * If a FATAL or RXORN interrupt is received, we have to reset the * chip immediately. */ - if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) + if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) && + !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) goto chip_reset; if (status & ATH9K_INT_SWBA) @@ -505,6 +521,13 @@ irqreturn_t ath_isr(int irq, void *dev) if (status & ATH9K_INT_TXURN) ath9k_hw_updatetxtriglevel(ah, true); + if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { + if (status & ATH9K_INT_RXEOL) { + ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN); + ath9k_hw_set_interrupts(ah, ah->imask); + } + } + if (status & ATH9K_INT_MIB) { /* * Disable interrupts until we service the MIB @@ -1162,9 +1185,14 @@ static int ath9k_start(struct ieee80211_hw *hw) } /* Setup our intr mask. */ - ah->imask = ATH9K_INT_RX | ATH9K_INT_TX - | ATH9K_INT_RXEOL | ATH9K_INT_RXORN - | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; + ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL | + ATH9K_INT_RXORN | ATH9K_INT_FATAL | + ATH9K_INT_GLOBAL; + + if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) + ah->imask |= ATH9K_INT_RXHP | ATH9K_INT_RXLP; + else + ah->imask |= ATH9K_INT_RX; if (ah->caps.hw_caps & ATH9K_HW_CAP_GTT) ah->imask |= ATH9K_INT_GTT; |