carl9170: export HW random number generator

[mv-sheeva.git] / drivers / net / wireless / ath / carl9170 / carl9170.h

diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 74350d63f6865eef0991c5d36b190f288fa0eca2..6cfbb419e2f6d1efe8ddf7e2d551928efcd95f9d 100644 (file)
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -43,6 +43,7 @@
 #include <linux/firmware.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
+#include <linux/hw_random.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include <linux/usb.h>
@@ -449,6 +450,17 @@ struct ar9170 {
                unsigned int off_override;
                bool state;
        } ps;
+
+#ifdef CONFIG_CARL9170_HWRNG
+# define CARL9170_HWRNG_CACHE_SIZE     CARL9170_MAX_CMD_PAYLOAD_LEN
+       struct {
+               struct hwrng rng;
+               bool initialized;
+               char name[30 + 1];
+               u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)];
+               unsigned int cache_idx;
+       } rng;
+#endif /* CONFIG_CARL9170_HWRNG */
 };
 
 enum carl9170_ps_off_override_reasons {