Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966212AbbKFByp (ORCPT ); Thu, 5 Nov 2015 20:54:45 -0500 Received: from mail-pa0-f68.google.com ([209.85.220.68]:35738 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965936AbbKFByn (ORCPT ); Thu, 5 Nov 2015 20:54:43 -0500 Subject: Re: [PATCH v2 1/4] Crypto: Crypto driver support aes/des/des3 for rk3288 To: Zain Wang References: <1446772644-2352-1-git-send-email-zain.wang@rock-chips.com> <1446772644-2352-2-git-send-email-zain.wang@rock-chips.com> Cc: zhengsq@rock-chips.com, hl@rock-chips.com, herbert@gondor.apana.org.au, davem@davemloft.net, mturquette@baylibre.com, heiko@sntech.de, pawel.moll@arm.com, ijc+devicetree@hellion.org.uk, robh+dt@kernel.org, galak@codeaurora.org, linux@arm.linux.org.uk, mark.rutland@arm.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, eddie.cai@rock-chips.com, linux-crypto@vger.kernel.org From: Caesar Wang Message-ID: <563C084E.6070101@gmail.com> Date: Fri, 6 Nov 2015 09:54:22 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1446772644-2352-2-git-send-email-zain.wang@rock-chips.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 26274 Lines: 826 I guess the subject: "crypto: rockchip: ...." Maybe better. 在 2015年11月06日 09:17, Zain Wang 写道: > The names registered are: > ecb(aes) cbc(aes) ecb(des) cbc(des) ecb(des3_ede) cbc(des3_ede) > You can alloc tags above in your case. > > And other algorithms and platforms will be added later on. > > Signed-off-by: Zain Wang > --- > > Changed in v2: > - remove some part about hash > - add weak key detection > - changed some variate's type > > Changde in v1: > - modify some variate's name > - modify some variate's type > - modify some return value > - remove or modify some print info > - use more dev_xxx in probe > - modify the prio of cipher [...] > +static int rk_crypto_remove(struct platform_device *pdev) > +{ > + struct crypto_info_t *crypto_tmp = platform_get_drvdata(pdev); > + > + rk_crypto_unregister(); > + tasklet_kill(&crypto_tmp->crypto_tasklet); > + free_irq(crypto_tmp->irq, crypto_tmp); > + crypto_p = NULL; > + > + return 0; > +} > + > +#ifdef CONFIG_OF > +static const struct of_device_id crypto_of_id_table[] = { > + { .compatible = "rockchip,rk3288-crypto" }, > + {} > +}; > +#endif /* CONFIG_OF */ I see the rk3368/ rk32xx SoCs the crypto seem the same IP. So, I guess we should put the "of_device_id" before the device probe since we should can compatible for more SoCs. Others, for example the commit need a bit change. > + > +static struct platform_driver crypto_driver = { > + .probe = rk_crypto_probe, > + .remove = rk_crypto_remove, > + .driver = { > + .name = "rockchip,rk3288-crypto", > + .of_match_table = of_match_ptr(crypto_of_id_table), > + }, > +}; > + > +module_platform_driver(crypto_driver); > + > +MODULE_LICENSE("GPL"); > +MODULE_AUTHOR("Zain Wang"); > diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h > new file mode 100644 > index 0000000..cf4cd18 > --- /dev/null > +++ b/drivers/crypto/rockchip/rk3288_crypto.h > @@ -0,0 +1,222 @@ > +#ifndef __RK3288_CRYPTO_H__ > +#define __RK3288_CRYPTO_H__ > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define _SBF(v, f) ((v) << (f)) > + > +/* Crypto control registers*/ > +#define RK_CRYPTO_INTSTS 0x0000 > +#define RK_CRYPTO_PKA_DONE_INT BIT(5) > +#define RK_CRYPTO_HASH_DONE_INT BIT(4) > +#define RK_CRYPTO_HRDMA_ERR_INT BIT(3) > +#define RK_CRYPTO_HRDMA_DONE_INT BIT(2) > +#define RK_CRYPTO_BCDMA_ERR_INT BIT(1) > +#define RK_CRYPTO_BCDMA_DONE_INT BIT(0) > + > +#define RK_CRYPTO_INTENA 0x0004 > +#define RK_CRYPTO_PKA_DONE_ENA BIT(5) > +#define RK_CRYPTO_HASH_DONE_ENA BIT(4) > +#define RK_CRYPTO_HRDMA_ERR_ENA BIT(3) > +#define RK_CRYPTO_HRDMA_DONE_ENA BIT(2) > +#define RK_CRYPTO_BCDMA_ERR_ENA BIT(1) > +#define RK_CRYPTO_BCDMA_DONE_ENA BIT(0) > + > +#define RK_CRYPTO_CTRL 0x0008 > +#define RK_CRYPTO_WRITE_MASK (0xFFFF << 16) > +#define RK_CRYPTO_TRNG_FLUSH BIT(9) > +#define RK_CRYPTO_TRNG_START BIT(8) > +#define RK_CRYPTO_PKA_FLUSH BIT(7) > +#define RK_CRYPTO_HASH_FLUSH BIT(6) > +#define RK_CRYPTO_BLOCK_FLUSH BIT(5) > +#define RK_CRYPTO_PKA_START BIT(4) > +#define RK_CRYPTO_HASH_START BIT(3) > +#define RK_CRYPTO_BLOCK_START BIT(2) > +#define RK_CRYPTO_TDES_START BIT(1) > +#define RK_CRYPTO_AES_START BIT(0) > + > +#define RK_CRYPTO_CONF 0x000c > +/* HASH Receive DMA Address Mode: fix | increment */ > +#define RK_CRYPTO_HR_ADDR_MODE BIT(8) > +/* Block Transmit DMA Address Mode: fix | increment */ > +#define RK_CRYPTO_BT_ADDR_MODE BIT(7) > +/* Block Receive DMA Address Mode: fix | increment */ > +#define RK_CRYPTO_BR_ADDR_MODE BIT(6) > +#define RK_CRYPTO_BYTESWAP_HRFIFO BIT(5) > +#define RK_CRYPTO_BYTESWAP_BTFIFO BIT(4) > +#define RK_CRYPTO_BYTESWAP_BRFIFO BIT(3) > +/* AES = 0 OR DES = 1 */ > +#define RK_CRYPTO_DESSEL BIT(2) > +#define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE _SBF(0x00, 0) > +#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT _SBF(0x01, 0) > +#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT _SBF(0x02, 0) > + > +/* Block Receiving DMA Start Address Register */ > +#define RK_CRYPTO_BRDMAS 0x0010 > +/* Block Transmitting DMA Start Address Register */ > +#define RK_CRYPTO_BTDMAS 0x0014 > +/* Block Receiving DMA Length Register */ > +#define RK_CRYPTO_BRDMAL 0x0018 > +/* Hash Receiving DMA Start Address Register */ > +#define RK_CRYPTO_HRDMAS 0x001c > +/* Hash Receiving DMA Length Register */ > +#define RK_CRYPTO_HRDMAL 0x0020 > + > +/* AES registers */ > +#define RK_CRYPTO_AES_CTRL 0x0080 > +#define RK_CRYPTO_AES_BYTESWAP_CNT BIT(11) > +#define RK_CRYPTO_AES_BYTESWAP_KEY BIT(10) > +#define RK_CRYPTO_AES_BYTESWAP_IV BIT(9) > +#define RK_CRYPTO_AES_BYTESWAP_DO BIT(8) > +#define RK_CRYPTO_AES_BYTESWAP_DI BIT(7) > +#define RK_CRYPTO_AES_KEY_CHANGE BIT(6) > +#define RK_CRYPTO_AES_ECB_MODE _SBF(0x00, 4) > +#define RK_CRYPTO_AES_CBC_MODE _SBF(0x01, 4) > +#define RK_CRYPTO_AES_CTR_MODE _SBF(0x02, 4) > +#define RK_CRYPTO_AES_128BIT_key _SBF(0x00, 2) > +#define RK_CRYPTO_AES_192BIT_key _SBF(0x01, 2) > +#define RK_CRYPTO_AES_256BIT_key _SBF(0x02, 2) > +/* Slave = 0 / fifo = 1 */ > +#define RK_CRYPTO_AES_FIFO_MODE BIT(1) > +/* Encryption = 0 , Decryption = 1 */ > +#define RK_CRYPTO_AES_DEC BIT(0) > + > +#define RK_CRYPTO_AES_STS 0x0084 > +#define RK_CRYPTO_AES_DONE BIT(0) > + > +/* AES Input Data 0-3 Register */ > +#define RK_CRYPTO_AES_DIN_0 0x0088 > +#define RK_CRYPTO_AES_DIN_1 0x008c > +#define RK_CRYPTO_AES_DIN_2 0x0090 > +#define RK_CRYPTO_AES_DIN_3 0x0094 > + > +/* AES output Data 0-3 Register */ > +#define RK_CRYPTO_AES_DOUT_0 0x0098 > +#define RK_CRYPTO_AES_DOUT_1 0x009c > +#define RK_CRYPTO_AES_DOUT_2 0x00a0 > +#define RK_CRYPTO_AES_DOUT_3 0x00a4 > + > +/* AES IV Data 0-3 Register */ > +#define RK_CRYPTO_AES_IV_0 0x00a8 > +#define RK_CRYPTO_AES_IV_1 0x00ac > +#define RK_CRYPTO_AES_IV_2 0x00b0 > +#define RK_CRYPTO_AES_IV_3 0x00b4 > + > +/* AES Key Data 0-3 Register */ > +#define RK_CRYPTO_AES_KEY_0 0x00b8 > +#define RK_CRYPTO_AES_KEY_1 0x00bc > +#define RK_CRYPTO_AES_KEY_2 0x00c0 > +#define RK_CRYPTO_AES_KEY_3 0x00c4 > +#define RK_CRYPTO_AES_KEY_4 0x00c8 > +#define RK_CRYPTO_AES_KEY_5 0x00cc > +#define RK_CRYPTO_AES_KEY_6 0x00d0 > +#define RK_CRYPTO_AES_KEY_7 0x00d4 > + > +/* AES Input Counter 0-3 Register */ > +#define RK_CRYPTO_AES_CNT_0 0x00d8 > +#define RK_CRYPTO_AES_CNT_1 0x00dc > +#define RK_CRYPTO_AES_CNT_2 0x00e0 > +#define RK_CRYPTO_AES_CNT_3 0x00e4 > + > +/* des/tdes */ > +#define RK_CRYPTO_TDES_CTRL 0x0100 > +#define RK_CRYPTO_TDES_BYTESWAP_KEY BIT(8) > +#define RK_CRYPTO_TDES_BYTESWAP_IV BIT(7) > +#define RK_CRYPTO_TDES_BYTESWAP_DO BIT(6) > +#define RK_CRYPTO_TDES_BYTESWAP_DI BIT(5) > +/* 0: ECB, 1: CBC */ > +#define RK_CRYPTO_TDES_CHAINMODE BIT(4) > +/* TDES Key Mode, 0 : EDE, 1 : EEE */ > +#define RK_CRYPTO_TDES_EEE BIT(3) > +/* 0: DES, 1:TDES */ > +#define RK_CRYPTO_TDES_SELECT BIT(2) > +/* 0: Slave, 1:Fifo */ > +#define RK_CRYPTO_TDES_FIFO_MODE BIT(1) > +/* Encryption = 0 , Decryption = 1 */ > +#define RK_CRYPTO_TDES_DEC BIT(0) > + > +#define RK_CRYPTO_TDES_STS 0x0104 > +#define RK_CRYPTO_TDES_DONE BIT(0) > + > +#define RK_CRYPTO_TDES_DIN_0 0x0108 > +#define RK_CRYPTO_TDES_DIN_1 0x010c > +#define RK_CRYPTO_TDES_DOUT_0 0x0110 > +#define RK_CRYPTO_TDES_DOUT_1 0x0114 > +#define RK_CRYPTO_TDES_IV_0 0x0118 > +#define RK_CRYPTO_TDES_IV_1 0x011c > +#define RK_CRYPTO_TDES_KEY1_0 0x0120 > +#define RK_CRYPTO_TDES_KEY1_1 0x0124 > +#define RK_CRYPTO_TDES_KEY2_0 0x0128 > +#define RK_CRYPTO_TDES_KEY2_1 0x012c > +#define RK_CRYPTO_TDES_KEY3_0 0x0130 > +#define RK_CRYPTO_TDES_KEY3_1 0x0134 > + > +#define CRYPTO_READ(dev, offset) \ > + readl_relaxed(((dev)->reg + (offset))) > +#define CRYPTO_WRITE(dev, offset, val) \ > + writel_relaxed((val), ((dev)->reg + (offset))) > +/* get register virt address */ > +#define CRYPTO_GET_REG_VIRT(dev, offset) ((dev)->reg + (offset)) > + > +struct crypto_info_t { > + struct device *dev; > + struct clk *aclk; > + struct clk *hclk; > + struct clk *sclk; > + struct clk *dmaclk; > + void __iomem *reg; > + int irq; > + struct crypto_queue queue; > + struct tasklet_struct crypto_tasklet; > + struct ablkcipher_request *ablk_req; > + /* device lock */ > + spinlock_t lock; > + > + /* the public variable */ > + struct scatterlist *sg_src; > + struct scatterlist *sg_dst; > + struct scatterlist sg_tmp; > + struct scatterlist *first; > + unsigned int left_bytes; > + void *addr_vir; > + int aligned; > + int align_size; > + size_t nents; > + unsigned int total; > + unsigned int count; > + u32 mode; > + dma_addr_t addr_in; > + dma_addr_t addr_out; > + int (*start)(struct crypto_info_t *dev); > + int (*update)(struct crypto_info_t *dev); > + void (*complete)(struct crypto_info_t *dev, int err); > + int (*enable_clk)(struct crypto_info_t *dev); > + void (*disable_clk)(struct crypto_info_t *dev); > + int (*load_data)(struct crypto_info_t *dev, > + struct scatterlist *sg_src, > + struct scatterlist *sg_dst); > + void (*unload_data)(struct crypto_info_t *dev); > +}; > + > +/* the private variable of cipher */ > +struct rk_cipher_ctx { > + struct crypto_info_t *dev; > + unsigned int keylen; > +}; > + > +extern struct crypto_info_t *crypto_p; > + > +extern struct crypto_alg rk_ecb_aes_alg; > +extern struct crypto_alg rk_cbc_aes_alg; > +extern struct crypto_alg rk_ecb_des_alg; > +extern struct crypto_alg rk_cbc_des_alg; > +extern struct crypto_alg rk_ecb_des3_ede_alg; > +extern struct crypto_alg rk_cbc_des3_ede_alg; > + > +#endif > diff --git a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c > new file mode 100644 > index 0000000..28b49c9 > --- /dev/null > +++ b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c > @@ -0,0 +1,511 @@ > +/* > + *Crypto acceleration support for Rockchip RK3288 > + * > + * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd > + * > + * Author: Zain Wang > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2, as published by the Free Software Foundation. > + * > + * Some ideas are from marvell-cesa.c and s5p-sss.c driver. > + */ > +#include "rk3288_crypto.h" > + > +#define RK_CRYPTO_DEC BIT(0) > +#define AES 0 > +#define TDES BIT(16) > + > +static void rk_crypto_complete(struct crypto_info_t *dev, int err) > +{ > + if (dev->ablk_req->base.complete) { > + if (err) > + dev_warn(dev->dev, "[%s:%d] err = %d\n", > + __func__, __LINE__, err); > + dev->ablk_req->base.complete(&dev->ablk_req->base, err); > + } > +} > + > +static int rk_handle_req(struct ablkcipher_request *req, int alig_bytes) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + int err; > + > + if (!IS_ALIGNED(req->nbytes, alig_bytes)) > + return -EINVAL; > + > + spin_lock(&dev->lock); > + err = ablkcipher_enqueue_request(&dev->queue, req); > + spin_unlock(&dev->lock); > + tasklet_schedule(&dev->crypto_tasklet); > + return err; > +} > + > +static void rk_ablk_init(struct crypto_info_t *dev, > + struct ablkcipher_request *req) > +{ > + dev->left_bytes = req->nbytes; > + dev->total = req->nbytes; > + dev->sg_src = req->src; > + dev->first = req->src; > + dev->nents = sg_nents(req->src); > + dev->sg_dst = req->dst; > + dev->aligned = 1; > + dev->ablk_req = req; > +} > + > +static int rk_aes_setkey(struct crypto_ablkcipher *cipher, > + const u8 *key, unsigned int keylen) > +{ > + struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher); > + struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm); > + > + if (!key) { > + dev_err(ctx->dev->dev, "[%s:%d] no key error\n", > + __func__, __LINE__); > + return -EINVAL; > + } > + > + if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 && > + keylen != AES_KEYSIZE_256) { > + crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN); > + dev_err(ctx->dev->dev, "[%s:%d] expect key len = %d\n", > + __func__, __LINE__, keylen); > + return -EINVAL; > + } > + ctx->keylen = keylen; > + memcpy(ctx->dev->reg + RK_CRYPTO_AES_KEY_0, key, keylen); > + return 0; > +} > + > +static int rk_tdes_setkey(struct crypto_ablkcipher *cipher, > + const u8 *key, unsigned int keylen) > +{ > + struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher); > + struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm); > + u32 tmp[DES_EXPKEY_WORDS]; > + > + if (!key) { > + dev_err(ctx->dev->dev, "[%s:%d] no key error\n", > + __func__, __LINE__); > + return -EINVAL; > + } > + > + if (keylen != DES_KEY_SIZE && keylen != DES3_EDE_KEY_SIZE) { > + crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN); > + dev_err(ctx->dev->dev, "[%s:%d] expect key len = %d\n", > + __func__, __LINE__, keylen); > + return -EINVAL; > + } > + > + if (keylen == DES_KEY_SIZE) { > + if (!des_ekey(tmp, key) && > + (tfm->crt_flags & CRYPTO_TFM_REQ_WEAK_KEY)) { > + tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY; > + return -EINVAL; > + } > + } > + > + ctx->keylen = keylen; > + memcpy(ctx->dev->reg + RK_CRYPTO_TDES_KEY1_0, key, keylen); > + return 0; > +} > + > +static int rk_aes_ecb_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_AES_ECB_MODE | AES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_aes_ecb_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC | AES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_aes_cbc_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_AES_CBC_MODE | AES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_aes_cbc_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC | AES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des_ecb_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des_ecb_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_DEC | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des_cbc_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_CHAINMODE | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des_cbc_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_CHAINMODE | RK_CRYPTO_DEC | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des3_ede_ecb_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_SELECT | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des3_ede_ecb_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des3_ede_cbc_encrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static int rk_des3_ede_cbc_decrypt(struct ablkcipher_request *req) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + struct crypto_info_t *dev = ctx->dev; > + > + dev->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE | > + RK_CRYPTO_DEC | TDES; > + rk_ablk_init(dev, req); > + return rk_handle_req(req, dev->align_size); > +} > + > +static void rk_ablk_hw_init(struct crypto_info_t *dev) > +{ > + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(dev->ablk_req); > + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); > + u32 conf_reg = 0; > + > + if (dev->mode & TDES) { > + dev->mode &= ~TDES; > + dev->mode |= RK_CRYPTO_TDES_FIFO_MODE | > + RK_CRYPTO_TDES_BYTESWAP_KEY | > + RK_CRYPTO_TDES_BYTESWAP_IV; > + CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, dev->mode); > + > + memcpy(dev->reg + RK_CRYPTO_TDES_IV_0, dev->ablk_req->info, 8); > + conf_reg = RK_CRYPTO_DESSEL; > + } else { > + dev->mode |= RK_CRYPTO_AES_FIFO_MODE | > + RK_CRYPTO_AES_KEY_CHANGE | > + RK_CRYPTO_AES_BYTESWAP_KEY | > + RK_CRYPTO_AES_BYTESWAP_IV; > + > + if (ctx->keylen == AES_KEYSIZE_192) > + dev->mode |= RK_CRYPTO_AES_192BIT_key; > + else if (ctx->keylen == AES_KEYSIZE_256) > + dev->mode |= RK_CRYPTO_AES_256BIT_key; > + > + CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, dev->mode); > + > + memcpy(dev->reg + RK_CRYPTO_AES_IV_0, dev->ablk_req->info, 16); > + } > + conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO | > + RK_CRYPTO_BYTESWAP_BRFIFO; > + CRYPTO_WRITE(dev, RK_CRYPTO_CONF, conf_reg); > + CRYPTO_WRITE(dev, RK_CRYPTO_INTENA, > + RK_CRYPTO_BCDMA_ERR_ENA | RK_CRYPTO_BCDMA_DONE_ENA); > +} > + > +static void crypto_dma_start(struct crypto_info_t *dev) > +{ > + CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAS, dev->addr_in); > + CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAL, dev->count / 4); > + CRYPTO_WRITE(dev, RK_CRYPTO_BTDMAS, dev->addr_out); > + CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_BLOCK_START | > + (RK_CRYPTO_BLOCK_START << 16)); > +} > + > +static int rk_set_data_start(struct crypto_info_t *dev) > +{ > + int err; > + > + err = dev->load_data(dev, dev->sg_src, dev->sg_dst); > + if (!err) > + crypto_dma_start(dev); > + return err; > +} > + > +static int rk_ablk_start(struct crypto_info_t *dev) > +{ > + int err; > + > + spin_lock(&dev->lock); > + rk_ablk_hw_init(dev); > + err = rk_set_data_start(dev); > + spin_unlock(&dev->lock); > + return err; > +} > + > +/* return: > + * true some err was occurred > + * fault no err, continue > + */ > +static int rk_ablk_rx(struct crypto_info_t *dev) > +{ > + int err = 0; > + > + dev->unload_data(dev); > + if (!dev->aligned) { > + if (!sg_pcopy_from_buffer(dev->ablk_req->dst, dev->nents, > + dev->addr_vir, dev->count, > + dev->total - dev->left_bytes - > + dev->count)) { > + err = -EINVAL; > + goto out_rx; > + } > + } > + if (dev->left_bytes) { > + if (dev->aligned) { > + if (sg_is_last(dev->sg_src)) { > + dev_err(dev->dev, "[%s:%d], lack of data\n", > + __func__, __LINE__); > + err = -ENOMEM; > + goto out_rx; > + } > + dev->sg_src = sg_next(dev->sg_src); > + dev->sg_dst = sg_next(dev->sg_dst); > + } > + err = rk_set_data_start(dev); > + } else { > + /* here show the calculation is over without any err */ > + dev->complete(dev, 0); > + } > +out_rx: > + return err; > +} > + > +static int rk_ablk_cra_init(struct crypto_tfm *tfm) > +{ > + struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm); > + > + ctx->dev = crypto_p; > + ctx->dev->align_size = crypto_tfm_alg_alignmask(tfm) + 1; > + ctx->dev->start = rk_ablk_start; > + ctx->dev->update = rk_ablk_rx; > + ctx->dev->complete = rk_crypto_complete; > + ctx->dev->addr_vir = (char *)__get_free_page(GFP_KERNEL); > + > + return ctx->dev->addr_vir ? ctx->dev->enable_clk(ctx->dev) : -ENOMEM; > +} > + > +static void rk_ablk_cra_exit(struct crypto_tfm *tfm) > +{ > + struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm); > + > + free_page((unsigned long)ctx->dev->addr_vir); > + ctx->dev->disable_clk(ctx->dev); > +} > + > +struct crypto_alg rk_ecb_aes_alg = { > + .cra_name = "ecb(aes)", > + .cra_driver_name = "ecb-aes-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = AES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x0f, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = AES_MIN_KEY_SIZE, > + .max_keysize = AES_MAX_KEY_SIZE, > + .setkey = rk_aes_setkey, > + .encrypt = rk_aes_ecb_encrypt, > + .decrypt = rk_aes_ecb_decrypt, > + } > +}; > + > +struct crypto_alg rk_cbc_aes_alg = { > + .cra_name = "cbc(aes)", > + .cra_driver_name = "cbc-aes-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = AES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x0f, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = AES_MIN_KEY_SIZE, > + .max_keysize = AES_MAX_KEY_SIZE, > + .ivsize = AES_BLOCK_SIZE, > + .setkey = rk_aes_setkey, > + .encrypt = rk_aes_cbc_encrypt, > + .decrypt = rk_aes_cbc_decrypt, > + } > +}; > + > +struct crypto_alg rk_ecb_des_alg = { > + .cra_name = "ecb(des)", > + .cra_driver_name = "ecb-des-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = DES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x07, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = DES_KEY_SIZE, > + .max_keysize = DES_KEY_SIZE, > + .setkey = rk_tdes_setkey, > + .encrypt = rk_des_ecb_encrypt, > + .decrypt = rk_des_ecb_decrypt, > + } > +}; > + > +struct crypto_alg rk_cbc_des_alg = { > + .cra_name = "cbc(des)", > + .cra_driver_name = "cbc-des-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = DES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x07, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = DES_KEY_SIZE, > + .max_keysize = DES_KEY_SIZE, > + .ivsize = DES_BLOCK_SIZE, > + .setkey = rk_tdes_setkey, > + .encrypt = rk_des_cbc_encrypt, > + .decrypt = rk_des_cbc_decrypt, > + } > +}; > + > +struct crypto_alg rk_ecb_des3_ede_alg = { > + .cra_name = "ecb(des3_ede)", > + .cra_driver_name = "ecb-des3-ede-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = DES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x07, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = DES3_EDE_KEY_SIZE, > + .max_keysize = DES3_EDE_KEY_SIZE, > + .ivsize = DES_BLOCK_SIZE, > + .setkey = rk_tdes_setkey, > + .encrypt = rk_des3_ede_ecb_encrypt, > + .decrypt = rk_des3_ede_ecb_decrypt, > + } > +}; > + > +struct crypto_alg rk_cbc_des3_ede_alg = { > + .cra_name = "cbc(des3_ede)", > + .cra_driver_name = "cbc-des3-ede-rk", > + .cra_priority = 300, > + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | > + CRYPTO_ALG_ASYNC, > + .cra_blocksize = DES_BLOCK_SIZE, > + .cra_ctxsize = sizeof(struct rk_cipher_ctx), > + .cra_alignmask = 0x07, > + .cra_type = &crypto_ablkcipher_type, > + .cra_module = THIS_MODULE, > + .cra_init = rk_ablk_cra_init, > + .cra_exit = rk_ablk_cra_exit, > + .cra_u.ablkcipher = { > + .min_keysize = DES3_EDE_KEY_SIZE, > + .max_keysize = DES3_EDE_KEY_SIZE, > + .ivsize = DES_BLOCK_SIZE, > + .setkey = rk_tdes_setkey, > + .encrypt = rk_des3_ede_cbc_encrypt, > + .decrypt = rk_des3_ede_cbc_decrypt, > + } > +}; -- Thanks, Caesar -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/