diff options
author | Jerry Chuang <jerry-chuang@realtek.com> | 2009-11-03 07:17:11 -0200 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 12:23:22 -0800 |
commit | 8fc8598e61f6f384f3eaf1d9b09500c12af47b37 (patch) | |
tree | 28045c6c72a4e1046feb96e06114eb69b14dacd6 /drivers/staging/rtl8192u/ieee80211/scatterwalk.h | |
parent | 9b8437574759a4ce165ab20c631cd6e14c3148c2 (diff) |
Staging: Added Realtek rtl8192u driver to staging
Add Realtek linux driver for rtl8192u as provided by Realtek
rtl8192u_linux_2.6.0006.1031.2008.tar.gz, send to me C/C staging ML.
This version won't compile against upstream, doesn't follow
Linux CodingStyle and has their own ieee80211 stack.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/scatterwalk.h')
-rw-r--r-- | drivers/staging/rtl8192u/ieee80211/scatterwalk.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/scatterwalk.h b/drivers/staging/rtl8192u/ieee80211/scatterwalk.h new file mode 100644 index 00000000000..b1644651901 --- /dev/null +++ b/drivers/staging/rtl8192u/ieee80211/scatterwalk.h @@ -0,0 +1,51 @@ +/* + * Cryptographic API. + * + * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> + * Copyright (c) 2002 Adam J. Richter <adam@yggdrasil.com> + * Copyright (c) 2004 Jean-Luc Cooke <jlcooke@certainkey.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#ifndef _CRYPTO_SCATTERWALK_H +#define _CRYPTO_SCATTERWALK_H +#include <linux/mm.h> +#include <asm/scatterlist.h> + +struct scatter_walk { + struct scatterlist *sg; + struct page *page; + void *data; + unsigned int len_this_page; + unsigned int len_this_segment; + unsigned int offset; +}; + +/* Define sg_next is an inline routine now in case we want to change + scatterlist to a linked list later. */ +static inline struct scatterlist *sg_next(struct scatterlist *sg) +{ + return sg + 1; +} + +static inline int scatterwalk_samebuf(struct scatter_walk *walk_in, + struct scatter_walk *walk_out, + void *src_p, void *dst_p) +{ + return walk_in->page == walk_out->page && + walk_in->offset == walk_out->offset && + walk_in->data == src_p && walk_out->data == dst_p; +} + +void *scatterwalk_whichbuf(struct scatter_walk *walk, unsigned int nbytes, void *scratch); +void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg); +int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, size_t nbytes, int out); +void scatterwalk_map(struct scatter_walk *walk, int out); +void scatterwalk_done(struct scatter_walk *walk, int out, int more); + +#endif /* _CRYPTO_SCATTERWALK_H */ |