diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/crypto/padlock-generic.c | |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/crypto/padlock-generic.c')
| -rw-r--r-- | drivers/crypto/padlock-generic.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/crypto/padlock-generic.c b/drivers/crypto/padlock-generic.c new file mode 100644 index 000000000000..18cf0e8274a7 --- /dev/null +++ b/drivers/crypto/padlock-generic.c | |||
| @@ -0,0 +1,63 @@ | |||
| 1 | /* | ||
| 2 | * Cryptographic API. | ||
| 3 | * | ||
| 4 | * Support for VIA PadLock hardware crypto engine. | ||
| 5 | * | ||
| 6 | * Copyright (c) 2004 Michal Ludvig <michal@logix.cz> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify | ||
| 9 | * it under the terms of the GNU General Public License as published by | ||
| 10 | * the Free Software Foundation; either version 2 of the License, or | ||
| 11 | * (at your option) any later version. | ||
| 12 | */ | ||
| 13 | |||
| 14 | #include <linux/module.h> | ||
| 15 | #include <linux/init.h> | ||
| 16 | #include <linux/types.h> | ||
| 17 | #include <linux/errno.h> | ||
| 18 | #include <linux/crypto.h> | ||
| 19 | #include <asm/byteorder.h> | ||
| 20 | #include "padlock.h" | ||
| 21 | |||
| 22 | static int __init | ||
| 23 | padlock_init(void) | ||
| 24 | { | ||
| 25 | int ret = -ENOSYS; | ||
| 26 | |||
| 27 | if (!cpu_has_xcrypt) { | ||
| 28 | printk(KERN_ERR PFX "VIA PadLock not detected.\n"); | ||
| 29 | return -ENODEV; | ||
| 30 | } | ||
| 31 | |||
| 32 | if (!cpu_has_xcrypt_enabled) { | ||
| 33 | printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n"); | ||
| 34 | return -ENODEV; | ||
| 35 | } | ||
| 36 | |||
| 37 | #ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES | ||
| 38 | if ((ret = padlock_init_aes())) { | ||
| 39 | printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n"); | ||
| 40 | return ret; | ||
| 41 | } | ||
| 42 | #endif | ||
| 43 | |||
| 44 | if (ret == -ENOSYS) | ||
| 45 | printk(KERN_ERR PFX "Hmm, VIA PadLock was compiled without any algorithm.\n"); | ||
| 46 | |||
| 47 | return ret; | ||
| 48 | } | ||
| 49 | |||
| 50 | static void __exit | ||
| 51 | padlock_fini(void) | ||
| 52 | { | ||
| 53 | #ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES | ||
| 54 | padlock_fini_aes(); | ||
| 55 | #endif | ||
| 56 | } | ||
| 57 | |||
| 58 | module_init(padlock_init); | ||
| 59 | module_exit(padlock_fini); | ||
| 60 | |||
| 61 | MODULE_DESCRIPTION("VIA PadLock crypto engine support."); | ||
| 62 | MODULE_LICENSE("Dual BSD/GPL"); | ||
| 63 | MODULE_AUTHOR("Michal Ludvig"); | ||
