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authorBing Zhao <bzhao@marvell.com>2009-02-04 22:22:39 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-02-27 14:51:38 -0500
commitf5ac2b9eb58f5efad83f2d0e7fa464e8980ecfc9 (patch)
treeefb94aef654467afa75b9ae021797aa57ecaa15c /drivers/net/wireless/libertas/if_sdio.c
parentf11c179eea77b8afc2fb7cb4b9a8815b85e3c16f (diff)
downloadop-kernel-dev-f5ac2b9eb58f5efad83f2d0e7fa464e8980ecfc9.zip
op-kernel-dev-f5ac2b9eb58f5efad83f2d0e7fa464e8980ecfc9.tar.gz
libertas: fix power save issue in libertas_sdio module
The problem: "iwconfig ethX power on" returns error The cause: "ps_supported" flag was never set for SD8385/8686 The fix: check firmware capabilities returned by GET_HW_SPEC command. Set "ps_supported" to 1 if FW_CAPINFO_PS bit is on. This fix applies to SDIO interface only. Signed-off-by: Bing Zhao <bzhao@marvell.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas/if_sdio.c')
-rw-r--r--drivers/net/wireless/libertas/if_sdio.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 4519d73..9878368 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -209,6 +209,9 @@ static int if_sdio_handle_event(struct if_sdio_card *card,
event = sdio_readb(card->func, IF_SDIO_EVENT, &ret);
if (ret)
goto out;
+
+ /* right shift 3 bits to get the event id */
+ event >>= 3;
} else {
if (size < 4) {
lbs_deb_sdio("event packet too small (%d bytes)\n",
@@ -921,6 +924,9 @@ static int if_sdio_probe(struct sdio_func *func,
if (ret)
goto err_activate_card;
+ if (priv->fwcapinfo & FW_CAPINFO_PS)
+ priv->ps_supported = 1;
+
out:
lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
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