From 4deaff791cd44e95e545ad8cd74dea25b4993499 Mon Sep 17 00:00:00 2001 From: Chia-Wei Wang Date: Fri, 30 Jul 2021 09:08:03 +0800 Subject: [PATCH] dm: hash: Add new UCLASS_HASH support Add UCLASS_HASH for hash driver development. Thus the hash drivers (SW or HW-accelerated) can be developed in the DM-based fashion. Signed-off-by: Chia-Wei Wang --- drivers/crypto/Kconfig | 2 + drivers/crypto/Makefile | 1 + drivers/crypto/hash/Kconfig | 5 ++ drivers/crypto/hash/Makefile | 5 ++ drivers/crypto/hash/hash-uclass.c | 121 ++++++++++++++++++++++++++++++ include/dm/uclass-id.h | 1 + include/u-boot/hash.h | 61 +++++++++++++++ 7 files changed, 196 insertions(+) create mode 100644 drivers/crypto/hash/Kconfig create mode 100644 drivers/crypto/hash/Makefile create mode 100644 drivers/crypto/hash/hash-uclass.c create mode 100644 include/u-boot/hash.h diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 1ea116be75..0082177c21 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -1,5 +1,7 @@ menu "Hardware crypto devices" +source drivers/crypto/hash/Kconfig + source drivers/crypto/fsl/Kconfig endmenu diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index efbd1d3fca..4a12b56be6 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_EXYNOS_ACE_SHA) += ace_sha.o obj-y += rsa_mod_exp/ obj-y += fsl/ +obj-y += hash/ diff --git a/drivers/crypto/hash/Kconfig b/drivers/crypto/hash/Kconfig new file mode 100644 index 0000000000..e226144b9b --- /dev/null +++ b/drivers/crypto/hash/Kconfig @@ -0,0 +1,5 @@ +config DM_HASH + bool "Enable Driver Model for Hash" + depends on DM + help + If you want to use driver model for Hash, say Y. diff --git a/drivers/crypto/hash/Makefile b/drivers/crypto/hash/Makefile new file mode 100644 index 0000000000..83acf3d47b --- /dev/null +++ b/drivers/crypto/hash/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (c) 2021 ASPEED Technology Inc. + +obj-$(CONFIG_DM_HASH) += hash-uclass.o diff --git a/drivers/crypto/hash/hash-uclass.c b/drivers/crypto/hash/hash-uclass.c new file mode 100644 index 0000000000..446eb9e56a --- /dev/null +++ b/drivers/crypto/hash/hash-uclass.c @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2021 ASPEED Technology Inc. + * Author: ChiaWei Wang + */ + +#define LOG_CATEGORY UCLASS_HASH + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct hash_info { + char *name; + uint32_t digest_size; +}; + +static const struct hash_info hash_info[HASH_ALGO_NUM] = { + [HASH_ALGO_CRC16_CCITT] = { "crc16-ccitt", 2 }, + [HASH_ALGO_CRC32] = { "crc32", 4 }, + [HASH_ALGO_MD5] = { "md5", 16 }, + [HASH_ALGO_SHA1] = { "sha1", 20 }, + [HASH_ALGO_SHA256] = { "sha256", 32 }, + [HASH_ALGO_SHA384] = { "sha384", 48 }, + [HASH_ALGO_SHA512] = { "sha512", 64}, +}; + +enum HASH_ALGO hash_algo_lookup_by_name(const char *name) +{ + int i; + + if (!name) + return HASH_ALGO_INVALID; + + for (i = 0; i < HASH_ALGO_NUM; ++i) + if (!strcmp(name, hash_info[i].name)) + return i; + + return HASH_ALGO_INVALID; +} + +ssize_t hash_algo_digest_size(enum HASH_ALGO algo) +{ + if (algo >= HASH_ALGO_NUM) + return -EINVAL; + + return hash_info[algo].digest_size; +} + +const char *hash_algo_name(enum HASH_ALGO algo) +{ + if (algo >= HASH_ALGO_NUM) + return NULL; + + return hash_info[algo].name; +} + +int hash_digest(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf) +{ + struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); + + if (!ops->hash_digest) + return -ENOSYS; + + return ops->hash_digest(dev, algo, ibuf, ilen, obuf); +} + +int hash_digest_wd(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf, uint32_t chunk_sz) +{ + struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); + + if (!ops->hash_digest_wd) + return -ENOSYS; + + return ops->hash_digest_wd(dev, algo, ibuf, ilen, obuf, chunk_sz); +} + +int hash_init(struct udevice *dev, enum HASH_ALGO algo, void **ctxp) +{ + struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); + + if (!ops->hash_init) + return -ENOSYS; + + return ops->hash_init(dev, algo, ctxp); +} + +int hash_update(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen) +{ + struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); + + if (!ops->hash_update) + return -ENOSYS; + + return ops->hash_update(dev, ctx, ibuf, ilen); +} + +int hash_finish(struct udevice *dev, void *ctx, void *obuf) +{ + struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); + + if (!ops->hash_finish) + return -ENOSYS; + + return ops->hash_finish(dev, ctx, obuf); +} + +UCLASS_DRIVER(hash) = { + .id = UCLASS_HASH, + .name = "hash", +}; diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index e7edd409f3..3768432b68 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -54,6 +54,7 @@ enum uclass_id { UCLASS_FIRMWARE, /* Firmware */ UCLASS_FS_FIRMWARE_LOADER, /* Generic loader */ UCLASS_GPIO, /* Bank of general-purpose I/O pins */ + UCLASS_HASH, /* Hash device */ UCLASS_HWSPINLOCK, /* Hardware semaphores */ UCLASS_I2C, /* I2C bus */ UCLASS_I2C_EEPROM, /* I2C EEPROM device */ diff --git a/include/u-boot/hash.h b/include/u-boot/hash.h new file mode 100644 index 0000000000..f9d47a99a7 --- /dev/null +++ b/include/u-boot/hash.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2021 ASPEED Technology Inc. + */ +#ifndef _UBOOT_HASH_H +#define _UBOOT_HASH_H + +enum HASH_ALGO { + HASH_ALGO_CRC16_CCITT, + HASH_ALGO_CRC32, + HASH_ALGO_MD5, + HASH_ALGO_SHA1, + HASH_ALGO_SHA256, + HASH_ALGO_SHA384, + HASH_ALGO_SHA512, + + HASH_ALGO_NUM, + + HASH_ALGO_INVALID = 0xffffffff, +}; + +/* general APIs for hash algo information */ +enum HASH_ALGO hash_algo_lookup_by_name(const char *name); +ssize_t hash_algo_digest_size(enum HASH_ALGO algo); +const char *hash_algo_name(enum HASH_ALGO algo); + +/* device-dependent APIs */ +int hash_digest(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf); +int hash_digest_wd(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf, uint32_t chunk_sz); +int hash_init(struct udevice *dev, enum HASH_ALGO algo, void **ctxp); +int hash_update(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen); +int hash_finish(struct udevice *dev, void *ctx, void *obuf); + +/* + * struct hash_ops - Driver model for Hash operations + * + * The uclass interface is implemented by all hash devices + * which use driver model. + */ +struct hash_ops { + /* progressive operations */ + int (*hash_init)(struct udevice *dev, enum HASH_ALGO algo, void **ctxp); + int (*hash_update)(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen); + int (*hash_finish)(struct udevice *dev, void *ctx, void *obuf); + + /* all-in-one operation */ + int (*hash_digest)(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf); + + /* all-in-one operation with watchdog triggering every chunk_sz */ + int (*hash_digest_wd)(struct udevice *dev, enum HASH_ALGO algo, + const void *ibuf, const uint32_t ilen, + void *obuf, uint32_t chunk_sz); +}; + +#endif -- 2.39.5