[PATCH] yenta: auto-tune EnE bridges for CardBus cards

Echo Audio cardbus products are known to be incompatible with EnE bridges.
in order to maybe solve the problem a EnE specific test bit has to be set,
another cleared...but other setups have a good chance to break when just
forcing the bits.  so do the whole thingy automatically.

The patch adds a hook in cb_alloc() that allows special tuning for the
different chipsets.  for ene just match the Echo products and set/clear the
test bits, defaults to do the same thing as w/o the patch to not break
working setups.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

include/pcmcia/ss.h

@@ -21,6 +21,9 @@
 #include <pcmcia/cs_types.h>
 #include <pcmcia/cs.h>
 #include <pcmcia/bulkmem.h>
+#ifdef CONFIG_CARDBUS
+#include <linux/pci.h>
+#endif
 
 /* Definitions for card status flags for GetStatus */
 #define SS_WRPROT	0x0001
@@ -233,7 +236,11 @@ struct pcmcia_socket {
 
 	/* so is power hook */
 	int (*power_hook)(struct pcmcia_socket *sock, int operation);
-                           
+#ifdef CONFIG_CARDBUS
+	/* allows tuning the CB bridge before loading driver for the CB card */
+	void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus);
+#endif
+
 	/* state thread */
 	struct semaphore		skt_sem;	/* protects socket h/w state */