diff options
| author | Dan Douglass <dan.douglass@freescale.com> | 2016-08-14 22:12:07 -0500 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:24:53 +0800 |
| commit | fd4328779376270b9bb4bf011fb49e60896a6447 (patch) | |
| tree | 4eeeb75f9e2323548b97ee3b30a3de18669a665b /drivers/crypto/mxs-dcp.c | |
| parent | a77728dddc8c14c894f8748723f7526a8b81ce58 (diff) | |
MLK-13073 crypto: dcp: Add DCP support for i.mx6
Enable DCP support for imx6 series.
Signed-off-by: Dan Douglass <dan.douglass@nxp.com>
Diffstat (limited to 'drivers/crypto/mxs-dcp.c')
| -rw-r--r-- | drivers/crypto/mxs-dcp.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index a98a25733a22..4368e9450a8e 100644 --- a/drivers/crypto/mxs-dcp.c +++ b/drivers/crypto/mxs-dcp.c @@ -99,6 +99,11 @@ struct dcp_sha_req_ctx { unsigned int fini:1; }; +struct dcp_export_state { + struct dcp_sha_req_ctx req_ctx; + struct dcp_async_ctx async_ctx; +}; + /* * There can even be only one instance of the MXS DCP due to the * design of Linux Crypto API. @@ -755,6 +760,35 @@ static int dcp_sha_finup(struct ahash_request *req) return dcp_sha_update_fx(req, 1); } +static int dcp_sha_export(struct ahash_request *req, void *out) +{ + struct dcp_sha_req_ctx *rctx_state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct dcp_async_ctx *actx_state = crypto_ahash_ctx(tfm); + struct dcp_export_state *export = out; + + memcpy(&export->req_ctx, rctx_state, sizeof(struct dcp_sha_req_ctx)); + memcpy(&export->async_ctx, actx_state, sizeof(struct dcp_async_ctx)); + + return 0; +} + +static int dcp_sha_import(struct ahash_request *req, const void *in) +{ + struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct dcp_async_ctx *actx = crypto_ahash_ctx(tfm); + const struct dcp_export_state *export = in; + + memset(rctx, 0, sizeof(struct dcp_sha_req_ctx)); + memset(actx, 0, sizeof(struct dcp_async_ctx)); + + memcpy(rctx, &export->req_ctx, sizeof(struct dcp_sha_req_ctx)); + memcpy(actx, &export->async_ctx, sizeof(struct dcp_async_ctx)); + + return 0; +} + static int dcp_sha_digest(struct ahash_request *req) { int ret; @@ -836,8 +870,11 @@ static struct ahash_alg dcp_sha1_alg = { .final = dcp_sha_final, .finup = dcp_sha_finup, .digest = dcp_sha_digest, + .export = dcp_sha_export, + .import = dcp_sha_import, .halg = { .digestsize = SHA1_DIGEST_SIZE, + .statesize = sizeof(struct dcp_export_state), .base = { .cra_name = "sha1", .cra_driver_name = "sha1-dcp", @@ -860,8 +897,11 @@ static struct ahash_alg dcp_sha256_alg = { .final = dcp_sha_final, .finup = dcp_sha_finup, .digest = dcp_sha_digest, + .export = dcp_sha_export, + .import = dcp_sha_import, .halg = { .digestsize = SHA256_DIGEST_SIZE, + .statesize = sizeof(struct dcp_export_state), .base = { .cra_name = "sha256", .cra_driver_name = "sha256-dcp", @@ -1086,6 +1126,7 @@ static int mxs_dcp_remove(struct platform_device *pdev) static const struct of_device_id mxs_dcp_dt_ids[] = { { .compatible = "fsl,imx23-dcp", .data = NULL, }, { .compatible = "fsl,imx28-dcp", .data = NULL, }, + { .compatible = "fsl,imx6sl-dcp", .data = NULL, }, { /* sentinel */ } }; |