LXR linux/drivers/crypto/ux500/cryp/cryp

   1/**
   2 * Copyright (C) ST-Ericsson SA 2010
   3 * Author: Shujuan Chen <shujuan.chen@stericsson.com> for ST-Ericsson.
   4 * Author: Jonas Linde <jonas.linde@stericsson.com> for ST-Ericsson.
   5 * Author: Joakim Bech <joakim.xx.bech@stericsson.com> for ST-Ericsson.
   6 * Author: Berne Hebark <berne.herbark@stericsson.com> for ST-Ericsson.
   7 * Author: Niklas Hernaeus <niklas.hernaeus@stericsson.com> for ST-Ericsson.
   8 * License terms: GNU General Public License (GPL) version 2.
   9 */
  10
  11#include <linux/kernel.h>
  12#include <linux/bitmap.h>
  13#include <linux/device.h>
  14
  15#include "cryp.h"
  16#include "cryp_p.h"
  17#include "cryp_irq.h"
  18#include "cryp_irqp.h"
  19
  20void cryp_enable_irq_src(struct cryp_device_data *device_data, u32 irq_src)
  21{
  22        u32 i;
  23
  24        dev_dbg(device_data->dev, "[%s]", __func__);
  25
  26        i = readl_relaxed(&device_data->base->imsc);
  27        i = i | irq_src;
  28        writel_relaxed(i, &device_data->base->imsc);
  29}
  30
  31void cryp_disable_irq_src(struct cryp_device_data *device_data, u32 irq_src)
  32{
  33        u32 i;
  34
  35        dev_dbg(device_data->dev, "[%s]", __func__);
  36
  37        i = readl_relaxed(&device_data->base->imsc);
  38        i = i & ~irq_src;
  39        writel_relaxed(i, &device_data->base->imsc);
  40}
  41
  42bool cryp_pending_irq_src(struct cryp_device_data *device_data, u32 irq_src)
  43{
  44        return (readl_relaxed(&device_data->base->mis) & irq_src) > 0;
  45}
  46