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authorandrey@cozybit.com <andrey@cozybit.com>2009-05-19 17:20:13 -0700
committerJohn W. Linville <linville@tuxdriver.com>2009-05-22 14:06:00 -0400
commitea2d06395b6de717a5e0c4b6e55f3047cae2131f (patch)
tree7e595306cd1d102eb7231f0784cacdf7cb040daa
parent4ef699fb771d347b31ddafd214c0dd47b90f7f0f (diff)
libertas: fix GSPI card event handling
The GPSI interface driver does not re-enable the Card Event Interrupt, which causes problems after a card event (for example: link-loss) comes in. This can lead, for example, to the card failing to re-associate. This patch ensures that we re-enable the Card Event Interrupt when we handle card events. Signed-off-by: Andrey Yurovsky <andrey@cozybit.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/libertas/if_spi.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index dccd01fd1f1..5fa55fe1f86 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -814,6 +814,13 @@ static void if_spi_e2h(struct if_spi_card *card)
if (err)
goto out;
+ /* re-enable the card event interrupt */
+ spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+ ~IF_SPI_HICU_CARD_EVENT);
+
+ /* generate a card interrupt */
+ spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT);
+
spin_lock_irqsave(&priv->driver_lock, flags);
lbs_queue_event(priv, cause & 0xff);
spin_unlock_irqrestore(&priv->driver_lock, flags);