// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014 Imagination Technologies * Authors: Will Thomas, James Hartley * * Interface structure taken from omap-sham driver */ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include <linux/scatterlist.h> #include <crypto/internal/hash.h> #include <crypto/md5.h> #include <crypto/sha1.h> #include <crypto/sha2.h> #define CR_RESET … #define CR_RESET_SET … #define CR_RESET_UNSET … #define CR_MESSAGE_LENGTH_H … #define CR_MESSAGE_LENGTH_L … #define CR_CONTROL … #define CR_CONTROL_BYTE_ORDER_3210 … #define CR_CONTROL_BYTE_ORDER_0123 … #define CR_CONTROL_BYTE_ORDER_2310 … #define CR_CONTROL_BYTE_ORDER_1032 … #define CR_CONTROL_BYTE_ORDER_SHIFT … #define CR_CONTROL_ALGO_MD5 … #define CR_CONTROL_ALGO_SHA1 … #define CR_CONTROL_ALGO_SHA224 … #define CR_CONTROL_ALGO_SHA256 … #define CR_INTSTAT … #define CR_INTENAB … #define CR_INTCLEAR … #define CR_INT_RESULTS_AVAILABLE … #define CR_INT_NEW_RESULTS_SET … #define CR_INT_RESULT_READ_ERR … #define CR_INT_MESSAGE_WRITE_ERROR … #define CR_INT_STATUS … #define CR_RESULT_QUEUE … #define CR_RSD0 … #define CR_CORE_REV … #define CR_CORE_DES1 … #define CR_CORE_DES2 … #define DRIVER_FLAGS_BUSY … #define DRIVER_FLAGS_FINAL … #define DRIVER_FLAGS_DMA_ACTIVE … #define DRIVER_FLAGS_OUTPUT_READY … #define DRIVER_FLAGS_INIT … #define DRIVER_FLAGS_CPU … #define DRIVER_FLAGS_DMA_READY … #define DRIVER_FLAGS_ERROR … #define DRIVER_FLAGS_SG … #define DRIVER_FLAGS_SHA1 … #define DRIVER_FLAGS_SHA224 … #define DRIVER_FLAGS_SHA256 … #define DRIVER_FLAGS_MD5 … #define IMG_HASH_QUEUE_LENGTH … #define IMG_HASH_DMA_BURST … #define IMG_HASH_DMA_THRESHOLD … #ifdef __LITTLE_ENDIAN #define IMG_HASH_BYTE_ORDER … #else #define IMG_HASH_BYTE_ORDER … #endif struct img_hash_dev; struct img_hash_request_ctx { … }; struct img_hash_ctx { … }; struct img_hash_dev { … }; struct img_hash_drv { … }; static struct img_hash_drv img_hash = …; static inline u32 img_hash_read(struct img_hash_dev *hdev, u32 offset) { … } static inline void img_hash_write(struct img_hash_dev *hdev, u32 offset, u32 value) { … } static inline __be32 img_hash_read_result_queue(struct img_hash_dev *hdev) { … } static void img_hash_start(struct img_hash_dev *hdev, bool dma) { … } static int img_hash_xmit_cpu(struct img_hash_dev *hdev, const u8 *buf, size_t length, int final) { … } static void img_hash_dma_callback(void *data) { … } static int img_hash_xmit_dma(struct img_hash_dev *hdev, struct scatterlist *sg) { … } static int img_hash_write_via_cpu(struct img_hash_dev *hdev) { … } static int img_hash_finish(struct ahash_request *req) { … } static void img_hash_copy_hash(struct ahash_request *req) { … } static void img_hash_finish_req(struct ahash_request *req, int err) { … } static int img_hash_write_via_dma(struct img_hash_dev *hdev) { … } static int img_hash_dma_init(struct img_hash_dev *hdev) { … } static void img_hash_dma_task(unsigned long d) { … } static int img_hash_write_via_dma_stop(struct img_hash_dev *hdev) { … } static int img_hash_process_data(struct img_hash_dev *hdev) { … } static int img_hash_hw_init(struct img_hash_dev *hdev) { … } static int img_hash_init(struct ahash_request *req) { … } static int img_hash_handle_queue(struct img_hash_dev *hdev, struct ahash_request *req) { … } static int img_hash_update(struct ahash_request *req) { … } static int img_hash_final(struct ahash_request *req) { … } static int img_hash_finup(struct ahash_request *req) { … } static int img_hash_import(struct ahash_request *req, const void *in) { … } static int img_hash_export(struct ahash_request *req, void *out) { … } static int img_hash_digest(struct ahash_request *req) { … } static int img_hash_cra_init(struct crypto_tfm *tfm, const char *alg_name) { … } static int img_hash_cra_md5_init(struct crypto_tfm *tfm) { … } static int img_hash_cra_sha1_init(struct crypto_tfm *tfm) { … } static int img_hash_cra_sha224_init(struct crypto_tfm *tfm) { … } static int img_hash_cra_sha256_init(struct crypto_tfm *tfm) { … } static void img_hash_cra_exit(struct crypto_tfm *tfm) { … } static irqreturn_t img_irq_handler(int irq, void *dev_id) { … } static struct ahash_alg img_algs[] = …; static int img_register_algs(struct img_hash_dev *hdev) { … } static int img_unregister_algs(struct img_hash_dev *hdev) { … } static void img_hash_done_task(unsigned long data) { … } static const struct of_device_id img_hash_match[] __maybe_unused = …; MODULE_DEVICE_TABLE(of, img_hash_match); static int img_hash_probe(struct platform_device *pdev) { … } static void img_hash_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM_SLEEP static int img_hash_suspend(struct device *dev) { … } static int img_hash_resume(struct device *dev) { … } #endif /* CONFIG_PM_SLEEP */ static const struct dev_pm_ops img_hash_pm_ops = …; static struct platform_driver img_hash_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …;
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