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| author | Tero Kristo <t-kristo@ti.com> | 2017-05-24 10:35:26 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-10 07:04:15 +0300 |
| commit | 74ed87e7e7f7197137164738dd0610ccd5ec5ed1 (patch) | |
| tree | 3d17637e5eb4b650596f880285de5c0c784a5f6b /drivers/crypto/omap-crypto.h | |
| parent | 418f2a8cf2ebb817a2b98cb4829c13d374e06932 (diff) | |
| download | linux-74ed87e7e7f7197137164738dd0610ccd5ec5ed1.tar.xz | |
crypto: omap - add base support library for common routines
This contains the generic APIs for aligning SG buffers.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/omap-crypto.h')
| -rw-r--r-- | drivers/crypto/omap-crypto.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/crypto/omap-crypto.h b/drivers/crypto/omap-crypto.h new file mode 100644 index 000000000000..36a230eb87af --- /dev/null +++ b/drivers/crypto/omap-crypto.h @@ -0,0 +1,37 @@ +/* + * OMAP Crypto driver common support routines. + * + * Copyright (c) 2017 Texas Instruments Incorporated + * Tero Kristo <t-kristo@ti.com> + * + * 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. + */ + +#ifndef __CRYPTO_OMAP_CRYPTO_H +#define __CRYPTO_OMAP_CRYPTO_H + +enum { + OMAP_CRYPTO_NOT_ALIGNED = 1, + OMAP_CRYPTO_BAD_DATA_LENGTH, +}; + +#define OMAP_CRYPTO_DATA_COPIED BIT(0) +#define OMAP_CRYPTO_SG_COPIED BIT(1) + +#define OMAP_CRYPTO_COPY_MASK 0x3 + +#define OMAP_CRYPTO_COPY_DATA BIT(0) +#define OMAP_CRYPTO_FORCE_COPY BIT(1) +#define OMAP_CRYPTO_ZERO_BUF BIT(2) +#define OMAP_CRYPTO_FORCE_SINGLE_ENTRY BIT(3) + +int omap_crypto_align_sg(struct scatterlist **sg, int total, int bs, + struct scatterlist *new_sg, u16 flags, + u8 flags_shift, unsigned long *dd_flags); +void omap_crypto_cleanup(struct scatterlist *sg, struct scatterlist *orig, + int offset, int len, u8 flags_shift, + unsigned long flags); + +#endif |