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path: root/drivers/crypto/omap-sham.c
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Diffstat (limited to 'drivers/crypto/omap-sham.c')
-rw-r--r--drivers/crypto/omap-sham.c183
1 files changed, 173 insertions, 10 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index fab0af488b8..edff981edfb 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -83,6 +83,8 @@
#define SHA_REG_MODE_ALGO_MASK (3 << 1)
#define SHA_REG_MODE_ALGO_MD5_128 (0 << 1)
#define SHA_REG_MODE_ALGO_SHA1_160 (1 << 1)
+#define SHA_REG_MODE_ALGO_SHA2_224 (2 << 1)
+#define SHA_REG_MODE_ALGO_SHA2_256 (3 << 1)
#define SHA_REG_LENGTH 0x48
@@ -121,6 +123,10 @@
<< (FLAGS_MODE_SHIFT - 1))
#define FLAGS_MODE_SHA1 (SHA_REG_MODE_ALGO_SHA1_160 \
<< (FLAGS_MODE_SHIFT - 1))
+#define FLAGS_MODE_SHA224 (SHA_REG_MODE_ALGO_SHA2_224 \
+ << (FLAGS_MODE_SHIFT - 1))
+#define FLAGS_MODE_SHA256 (SHA_REG_MODE_ALGO_SHA2_256 \
+ << (FLAGS_MODE_SHIFT - 1))
#define FLAGS_HMAC 20
#define FLAGS_ERROR 21
@@ -173,7 +179,15 @@ struct omap_sham_ctx {
#define OMAP_SHAM_QUEUE_LENGTH 1
+struct omap_sham_algs_info {
+ struct ahash_alg *algs_list;
+ unsigned int size;
+ unsigned int registered;
+};
+
struct omap_sham_pdata {
+ struct omap_sham_algs_info *algs_info;
+ unsigned int algs_info_size;
unsigned long flags;
int digest_size;
@@ -322,6 +336,12 @@ static void omap_sham_copy_ready_hash(struct ahash_request *req)
big_endian = 1;
d = SHA1_DIGEST_SIZE / sizeof(u32);
break;
+ case FLAGS_MODE_SHA224:
+ d = SHA224_DIGEST_SIZE / sizeof(u32);
+ break;
+ case FLAGS_MODE_SHA256:
+ d = SHA256_DIGEST_SIZE / sizeof(u32);
+ break;
default:
d = 0;
}
@@ -780,6 +800,12 @@ static int omap_sham_init(struct ahash_request *req)
case SHA1_DIGEST_SIZE:
ctx->flags |= FLAGS_MODE_SHA1;
break;
+ case SHA224_DIGEST_SIZE:
+ ctx->flags |= FLAGS_MODE_SHA224;
+ break;
+ case SHA256_DIGEST_SIZE:
+ ctx->flags |= FLAGS_MODE_SHA256;
+ break;
}
ctx->bufcnt = 0;
@@ -1173,6 +1199,16 @@ static int omap_sham_cra_sha1_init(struct crypto_tfm *tfm)
return omap_sham_cra_init_alg(tfm, "sha1");
}
+static int omap_sham_cra_sha224_init(struct crypto_tfm *tfm)
+{
+ return omap_sham_cra_init_alg(tfm, "sha224");
+}
+
+static int omap_sham_cra_sha256_init(struct crypto_tfm *tfm)
+{
+ return omap_sham_cra_init_alg(tfm, "sha256");
+}
+
static int omap_sham_cra_md5_init(struct crypto_tfm *tfm)
{
return omap_sham_cra_init_alg(tfm, "md5");
@@ -1191,7 +1227,7 @@ static void omap_sham_cra_exit(struct crypto_tfm *tfm)
}
}
-static struct ahash_alg algs[] = {
+static struct ahash_alg algs_sha1_md5[] = {
{
.init = omap_sham_init,
.update = omap_sham_update,
@@ -1290,6 +1326,102 @@ static struct ahash_alg algs[] = {
}
};
+/* OMAP4 has some algs in addition to what OMAP2 has */
+static struct ahash_alg algs_sha224_sha256[] = {
+{
+ .init = omap_sham_init,
+ .update = omap_sham_update,
+ .final = omap_sham_final,
+ .finup = omap_sham_finup,
+ .digest = omap_sham_digest,
+ .halg.digestsize = SHA224_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "omap-sha224",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct omap_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = omap_sham_cra_init,
+ .cra_exit = omap_sham_cra_exit,
+ }
+},
+{
+ .init = omap_sham_init,
+ .update = omap_sham_update,
+ .final = omap_sham_final,
+ .finup = omap_sham_finup,
+ .digest = omap_sham_digest,
+ .halg.digestsize = SHA256_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "omap-sha256",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct omap_sham_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_init = omap_sham_cra_init,
+ .cra_exit = omap_sham_cra_exit,
+ }
+},
+{
+ .init = omap_sham_init,
+ .update = omap_sham_update,
+ .final = omap_sham_final,
+ .finup = omap_sham_finup,
+ .digest = omap_sham_digest,
+ .setkey = omap_sham_setkey,
+ .halg.digestsize = SHA224_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "hmac(sha224)",
+ .cra_driver_name = "omap-hmac-sha224",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct omap_sham_ctx) +
+ sizeof(struct omap_sham_hmac_ctx),
+ .cra_alignmask = OMAP_ALIGN_MASK,
+ .cra_module = THIS_MODULE,
+ .cra_init = omap_sham_cra_sha224_init,
+ .cra_exit = omap_sham_cra_exit,
+ }
+},
+{
+ .init = omap_sham_init,
+ .update = omap_sham_update,
+ .final = omap_sham_final,
+ .finup = omap_sham_finup,
+ .digest = omap_sham_digest,
+ .setkey = omap_sham_setkey,
+ .halg.digestsize = SHA256_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "hmac(sha256)",
+ .cra_driver_name = "omap-hmac-sha256",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct omap_sham_ctx) +
+ sizeof(struct omap_sham_hmac_ctx),
+ .cra_alignmask = OMAP_ALIGN_MASK,
+ .cra_module = THIS_MODULE,
+ .cra_init = omap_sham_cra_sha256_init,
+ .cra_exit = omap_sham_cra_exit,
+ }
+},
+};
+
static void omap_sham_done_task(unsigned long data)
{
struct omap_sham_dev *dd = (struct omap_sham_dev *)data;
@@ -1364,7 +1496,16 @@ static irqreturn_t omap_sham_irq_omap4(int irq, void *dev_id)
return omap_sham_irq_common(dd);
}
+static struct omap_sham_algs_info omap_sham_algs_info_omap2[] = {
+ {
+ .algs_list = algs_sha1_md5,
+ .size = ARRAY_SIZE(algs_sha1_md5),
+ },
+};
+
static const struct omap_sham_pdata omap_sham_pdata_omap2 = {
+ .algs_info = omap_sham_algs_info_omap2,
+ .algs_info_size = ARRAY_SIZE(omap_sham_algs_info_omap2),
.flags = BIT(FLAGS_BE32_SHA1),
.digest_size = SHA1_DIGEST_SIZE,
.copy_hash = omap_sham_copy_hash_omap2,
@@ -1385,7 +1526,20 @@ static const struct omap_sham_pdata omap_sham_pdata_omap2 = {
};
#ifdef CONFIG_OF
+static struct omap_sham_algs_info omap_sham_algs_info_omap4[] = {
+ {
+ .algs_list = algs_sha1_md5,
+ .size = ARRAY_SIZE(algs_sha1_md5),
+ },
+ {
+ .algs_list = algs_sha224_sha256,
+ .size = ARRAY_SIZE(algs_sha224_sha256),
+ },
+};
+
static const struct omap_sham_pdata omap_sham_pdata_omap4 = {
+ .algs_info = omap_sham_algs_info_omap4,
+ .algs_info_size = ARRAY_SIZE(omap_sham_algs_info_omap4),
.flags = BIT(FLAGS_AUTO_XOR),
.digest_size = SHA256_DIGEST_SIZE,
.copy_hash = omap_sham_copy_hash_omap4,
@@ -1570,17 +1724,24 @@ static int __devinit omap_sham_probe(struct platform_device *pdev)
list_add_tail(&dd->list, &sham.dev_list);
spin_unlock(&sham.lock);
- for (i = 0; i < ARRAY_SIZE(algs); i++) {
- err = crypto_register_ahash(&algs[i]);
- if (err)
- goto err_algs;
+ for (i = 0; i < dd->pdata->algs_info_size; i++) {
+ for (j = 0; j < dd->pdata->algs_info[i].size; j++) {
+ err = crypto_register_ahash(
+ &dd->pdata->algs_info[i].algs_list[j]);
+ if (err)
+ goto err_algs;
+
+ dd->pdata->algs_info[i].registered++;
+ }
}
return 0;
err_algs:
- for (j = 0; j < i; j++)
- crypto_unregister_ahash(&algs[j]);
+ for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
+ for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
+ crypto_unregister_ahash(
+ &dd->pdata->algs_info[i].algs_list[j]);
pm_runtime_disable(dev);
dma_release_channel(dd->dma_lch);
dma_err:
@@ -1597,7 +1758,7 @@ data_err:
static int __devexit omap_sham_remove(struct platform_device *pdev)
{
static struct omap_sham_dev *dd;
- int i;
+ int i, j;
dd = platform_get_drvdata(pdev);
if (!dd)
@@ -1605,8 +1766,10 @@ static int __devexit omap_sham_remove(struct platform_device *pdev)
spin_lock(&sham.lock);
list_del(&dd->list);
spin_unlock(&sham.lock);
- for (i = 0; i < ARRAY_SIZE(algs); i++)
- crypto_unregister_ahash(&algs[i]);
+ for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
+ for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
+ crypto_unregister_ahash(
+ &dd->pdata->algs_info[i].algs_list[j]);
tasklet_kill(&dd->done_task);
pm_runtime_disable(&pdev->dev);
dma_release_channel(dd->dma_lch);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 02:45:46 +0000