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mac80211: b43: Expose PIO mode fallback

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Allow reenabling the PIO mode fallback for b43.

Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com>

SVN-Revision: 26735
This commit is contained in:
Hauke Mehrtens 2011-04-19 21:43:19 +00:00
parent 0429ec0c11
commit becddc9ec7
2 changed files with 29 additions and 13 deletions
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12
package/mac80211/Makefile
View file

@ -34,6 +34,7 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_PACKAGE_MAC80211_DEBUGFS \
CONFIG_PACKAGE_ATH_DEBUG \
CONFIG_PACKAGE_B43_DEBUG \
CONFIG_PACKAGE_B43_PIO \
CONFIG_ATH_USER_REGD \
CARL9170_FW_VERSION:=1.9.2
@ -1118,6 +1119,15 @@ define KernelPackage/b43/config
If unsure, say N.
config PACKAGE_B43_PIO
bool "Enable support for PIO transfer mode"
default n
help
Enable support for using PIO instead of DMA. Unless you have DMA
transfer problems you don't need this.
If unsure, say N.
endmenu
endef
@ -1179,6 +1189,7 @@ BUILDFLAGS:= \
-DCONFIG_MAC80211_RC_MINSTREL_HT \
$(if $(CONFIG_ATH_USER_REGD),-DATH_USER_REGD=1) \
$(if $(CONFIG_PACKAGE_B43_DEBUG),-DCONFIG_B43_DEBUG) \
$(if $(CONFIG_PACKAGE_B43_PIO),-DCONFIG_B43_PIO) \
$(if $(CONFIG_PACKAGE_RT2X00_LIB_DEBUGFS),-DCONFIG_RT2X00_LIB_DEBUGFS) \
$(if $(CONFIG_PACKAGE_RT2X00_DEBUG),-DCONFIG_RT2X00_DEBUG) \
$(if $(NEED_RT2X00_LIB_HT),-DCONFIG_RT2X00_LIB_HT) \
@ -1211,6 +1222,7 @@ MAKE_OPTS:= \
CONFIG_B43=$(if $(CONFIG_PACKAGE_kmod-b43),m) \
CONFIG_B43LEGACY=$(if $(CONFIG_PACKAGE_kmod-b43legacy),m) \
CONFIG_B43_DEBUG=$(if $(CONFIG_PACKAGE_B43_DEBUG),y) \
CONFIG_B43_PIO=$(if $(CONFIG_PACKAGE_B43_PIO),y) \
CONFIG_ATH_COMMON=$(if $(CONFIG_PACKAGE_kmod-ath),m) \
CONFIG_ATH_DEBUG=$(if $(CONFIG_PACKAGE_ATH_DEBUG),y) \
CONFIG_ATH5K_DEBUG=$(if $(CONFIG_PACKAGE_ATH_DEBUG),y) \

30
package/mac80211/patches/810-b43_no_pio.patch
View file

@ -5,7 +5,7 @@
b43-y += wa.o
b43-y += dma.o
-b43-y += pio.o
+# b43-y += pio.o
+b43-$(CONFIG_B43_PIO) += pio.o
b43-y += rfkill.o
b43-$(CONFIG_B43_LEDS) += leds.o
b43-$(CONFIG_B43_PCMCIA) += pcmcia.o
@ -15,7 +15,7 @@
dma_reason[4], dma_reason[5]);
b43err(dev->wl, "This device does not support DMA "
"on your system. It will now be switched to PIO.\n");
+#if 0
+#ifdef CONFIG_B43_PIO
/* Fall back to PIO transfers if we get fatal DMA errors! */
dev->use_pio = 1;
b43_controller_restart(dev, "DMA error");
@ -25,12 +25,20 @@
if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
--- a/drivers/net/wireless/b43/pio.h
+++ b/drivers/net/wireless/b43/pio.h
@@ -151,15 +151,34 @@ static inline void b43_piorx_write32(str
@@ -150,7 +150,7 @@ static inline void b43_piorx_write32(str
b43_write32(q->dev, q->mmio_base + offset, value);
}
-
+#ifdef CONFIG_B43_PIO
int b43_pio_init(struct b43_wldev *dev);
void b43_pio_free(struct b43_wldev *dev);
-int b43_pio_init(struct b43_wldev *dev);
-void b43_pio_free(struct b43_wldev *dev);
@@ -161,5 +161,37 @@ void b43_pio_rx(struct b43_pio_rxqueue *
void b43_pio_tx_suspend(struct b43_wldev *dev);
void b43_pio_tx_resume(struct b43_wldev *dev);
+#else
+static inline int b43_pio_init(struct b43_wldev *dev)
+{
+ return 0;
@ -44,11 +52,7 @@
+{
+ return 0;
+}
-int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb);
-void b43_pio_handle_txstatus(struct b43_wldev *dev,
- const struct b43_txstatus *status);
-void b43_pio_rx(struct b43_pio_rxqueue *q);
+
+static inline void b43_pio_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status)
+{
@ -57,14 +61,14 @@
+static inline void b43_pio_rx(struct b43_pio_rxqueue *q)
+{
+}
-void b43_pio_tx_suspend(struct b43_wldev *dev);
-void b43_pio_tx_resume(struct b43_wldev *dev);
+
+static inline void b43_pio_tx_suspend(struct b43_wldev *dev)
+{
+}
+
+static inline void b43_pio_tx_resume(struct b43_wldev *dev)
+{
+}
+#endif /* CONFIG_B43_PIO */
#endif /* B43_PIO_H_ */