drivers/crypto/qce/core.h

   1 /*
   2  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 and
   6  * only version 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #ifndef _CORE_H_
  15 #define _CORE_H_
  16
  17 #include "dma.h"
  18
  19 /**
  20  * struct qce_device - crypto engine device structure
  21  * @queue: crypto request queue
  22  * @lock: the lock protects queue and req
  23  * @done_tasklet: done tasklet object
  24  * @req: current active request
  25  * @result: result of current transform
  26  * @base: virtual IO base
  27  * @dev: pointer to device structure
  28  * @core: core device clock
  29  * @iface: interface clock
  30  * @bus: bus clock
  31  * @dma: pointer to dma data
  32  * @burst_size: the crypto burst size
  33  * @pipe_pair_id: which pipe pair id the device using
  34  * @async_req_enqueue: invoked by every algorithm to enqueue a request
  35  * @async_req_done: invoked by every algorithm to finish its request
  36  */
  37 struct qce_device {
  38         struct crypto_queue queue;
  39         spinlock_t lock;
  40         struct tasklet_struct done_tasklet;
  41         struct crypto_async_request *req;
  42         int result;
  43         void __iomem *base;
  44         struct device *dev;
  45         struct clk *core, *iface, *bus;
  46         struct qce_dma_data dma;
  47         int burst_size;
  48         unsigned int pipe_pair_id;
  49         int (*async_req_enqueue)(struct qce_device *qce,
  50                                  struct crypto_async_request *req);
  51         void (*async_req_done)(struct qce_device *qce, int ret);
  52 };
  53
  54 /**
  55  * struct qce_algo_ops - algorithm operations per crypto type
  56  * @type: should be CRYPTO_ALG_TYPE_XXX
  57  * @register_algs: invoked by core to register the algorithms
  58  * @unregister_algs: invoked by core to unregister the algorithms
  59  * @async_req_handle: invoked by core to handle enqueued request
  60  */
  61 struct qce_algo_ops {
  62         u32 type;
  63         int (*register_algs)(struct qce_device *qce);
  64         void (*unregister_algs)(struct qce_device *qce);
  65         int (*async_req_handle)(struct crypto_async_request *async_req);
  66 };
  67
  68 #endif /* _CORE_H_ */