Staging: add Realtek 8192 PCI wireless driver

This wireless driver should work for the Realtek 8192 PCI devices.

It comes directly from Realtek and has been tested to work on at least
one laptop in the wild.

Cc: Anthony Wong <awong1@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 90 insertions, 0 deletions

diff --git a/drivers/staging/rtl8192e/ieee80211/crypto_compat.h b/drivers/staging/rtl8192e/ieee80211/crypto_compat.h
new file mode 100644
index 00000000000..587e8bb2db6
--- /dev/null
+++ b/drivers/staging/rtl8192e/ieee80211/crypto_compat.h
@@ -0,0 +1,90 @@
+/*
+ * Header file to maintain compatibility among different kernel versions.
+ *
+ * Copyright (c) 2004-2006  <lawrence_wang@realsil.com.cn>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation. See README and COPYING for
+ * more details.
+ */
+
+#include <linux/crypto.h>
+
+static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
+                                        struct scatterlist *dst,
+                                        struct scatterlist *src,
+                                        unsigned int nbytes)
+{
+	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
+	return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
+}
+
+
+static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
+                                        struct scatterlist *dst,
+                                        struct scatterlist *src,
+                                        unsigned int nbytes)
+{
+	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
+	return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
+}
+
+#if 0
+/*
+ *	crypto_free_tfm - Free crypto transform
+ *	@tfm: Transform to free
+ *
+ *	crypto_free_tfm() frees up the transform and any associated resources,
+ *	then drops the refcount on the associated algorithm.
+ */
+void crypto_free_tfm(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg;
+	int size;
+
+	if (unlikely(!tfm))
+		return;
+
+	alg = tfm->__crt_alg;
+	size = sizeof(*tfm) + alg->cra_ctxsize;
+
+	if (alg->cra_exit)
+		alg->cra_exit(tfm);
+	crypto_exit_ops(tfm);
+	crypto_mod_put(alg);
+	memset(tfm, 0, size);
+	kfree(tfm);
+}
+
+#endif
+#if 1
+ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
+{
+	struct crypto_tfm *tfm = NULL;
+	int err;
+	printk("call crypto_alloc_tfm!!!\n");
+	do {
+		struct crypto_alg *alg;
+
+		alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
+		err = PTR_ERR(alg);
+		if (IS_ERR(alg))
+			continue;
+
+		tfm = __crypto_alloc_tfm(alg, flags);
+		err = 0;
+		if (IS_ERR(tfm)) {
+			crypto_mod_put(alg);
+			err = PTR_ERR(tfm);
+			tfm = NULL;
+		}
+	} while (err == -EAGAIN && !signal_pending(current));
+
+	return tfm;
+}
+#endif
+//EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
+//EXPORT_SYMBOL_GPL(crypto_free_tfm);
+
+