If a sdio host does not support sdio irqs, polling is used
instead. That has an impact on performance. Some functionality
should not be enabled then. This add a variable in
libertas_priv to indicate that.
Signed-off-by: Andreas Kemnade <andr...@kemnade.info>
---
drivers/net/wireless/libertas/dev.h | 1 +
drivers/net/wireless/libertas/if_sdio.c | 2 +-
drivers/net/wireless/libertas/if_usb.c | 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/libertas/dev.h
b/drivers/net/wireless/libertas/dev.h
index 6bd1608..edf710b 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -99,6 +99,7 @@ struct lbs_private {
/* Hardware access */
void *card;
bool iface_running;
+ u8 is_polling; /* host has to poll the card irq */
u8 fw_ready;
u8 surpriseremoved;
u8 setup_fw_on_resume;
diff --git a/drivers/net/wireless/libertas/if_sdio.c
b/drivers/net/wireless/libertas/if_sdio.c
index f1f31a2..13db8b5 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -1271,7 +1271,7 @@ static int if_sdio_probe(struct sdio_func *func,
priv->reset_card = if_sdio_reset_card;
priv->power_save = if_sdio_power_save;
priv->power_restore = if_sdio_power_restore;
-
+ priv->is_polling = !(func->card->host->caps & MMC_CAP_SDIO_IRQ);
ret = if_sdio_power_on(card);
if (ret)
goto err_activate_card;
diff --git a/drivers/net/wireless/libertas/if_usb.c
b/drivers/net/wireless/libertas/if_usb.c
index dff08a2..aba0c99 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -267,6 +267,7 @@ static int if_usb_probe(struct usb_interface *intf,
priv->enter_deep_sleep = NULL;
priv->exit_deep_sleep = NULL;
priv->reset_deep_sleep_wakeup = NULL;
+ priv->is_polling = false;
#ifdef CONFIG_OLPC
if (machine_is_olpc())
priv->reset_card = if_usb_reset_olpc_card;
--
2.1.4
--
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