LXR linux/drivers/staging/media/atomisp/pci/css_2401_system/host/isys_irq

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Support for Intel Camera Imaging ISP subsystem.
   4 * Copyright (c) 2015, Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 */
  15
  16#ifndef __ISYS_IRQ_PRIVATE_H__
  17#define __ISYS_IRQ_PRIVATE_H__
  18
  19#include "isys_irq_global.h"
  20#include "isys_irq_local.h"
  21
  22#if defined(ISP2401)
  23
  24/* -------------------------------------------------------+
  25 |             Native command interface (NCI)             |
  26 + -------------------------------------------------------*/
  27
  28/**
  29* @brief Get the isys irq status.
  30* Refer to "isys_irq.h" for details.
  31*/
  32void isys_irqc_state_get(
  33    const isys_irq_ID_t isys_irqc_id,
  34    isys_irqc_state_t *state)
  35{
  36        state->edge     = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_EDGE_REG_IDX);
  37        state->mask     = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_MASK_REG_IDX);
  38        state->status   = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_STATUS_REG_IDX);
  39        state->enable   = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_ENABLE_REG_IDX);
  40        state->level_no = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_LEVEL_NO_REG_IDX);
  41        /*
  42        ** Invalid to read/load from write-only register 'clear'
  43        ** state->clear = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_CLEAR_REG_IDX);
  44        */
  45}
  46
  47/**
  48* @brief Dump the isys irq status.
  49* Refer to "isys_irq.h" for details.
  50*/
  51void isys_irqc_state_dump(
  52    const isys_irq_ID_t isys_irqc_id,
  53    const isys_irqc_state_t *state)
  54{
  55        ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  56                            "isys irq controller id %d\n\tstatus:0x%x\n\tedge:0x%x\n\tmask:0x%x\n\tenable:0x%x\n\tlevel_not_pulse:0x%x\n",
  57                            isys_irqc_id,
  58                            state->status, state->edge, state->mask, state->enable, state->level_no);
  59}
  60
  61/* end of NCI */
  62
  63/* -------------------------------------------------------+
  64 |              Device level interface (DLI)              |
  65 + -------------------------------------------------------*/
  66
  67/* Support functions */
  68void isys_irqc_reg_store(
  69    const isys_irq_ID_t isys_irqc_id,
  70    const unsigned int  reg_idx,
  71    const hrt_data      value)
  72{
  73        unsigned int reg_addr;
  74
  75        assert(isys_irqc_id < N_ISYS_IRQ_ID);
  76        assert(reg_idx <= ISYS_IRQ_LEVEL_NO_REG_IDX);
  77
  78        reg_addr = ISYS_IRQ_BASE[isys_irqc_id] + (reg_idx * sizeof(hrt_data));
  79        ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  80                            "isys irq store at addr(0x%x) val(%u)\n", reg_addr, (unsigned int)value);
  81
  82        ia_css_device_store_uint32(reg_addr, value);
  83}
  84
  85hrt_data isys_irqc_reg_load(
  86    const isys_irq_ID_t isys_irqc_id,
  87    const unsigned int  reg_idx)
  88{
  89        unsigned int reg_addr;
  90        hrt_data value;
  91
  92        assert(isys_irqc_id < N_ISYS_IRQ_ID);
  93        assert(reg_idx <= ISYS_IRQ_LEVEL_NO_REG_IDX);
  94
  95        reg_addr = ISYS_IRQ_BASE[isys_irqc_id] + (reg_idx * sizeof(hrt_data));
  96        value = ia_css_device_load_uint32(reg_addr);
  97        ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  98                            "isys irq load from addr(0x%x) val(%u)\n", reg_addr, (unsigned int)value);
  99
 100        return value;
 101}
 102
 103/* end of DLI */
 104
 105#endif /* defined(ISP2401) */
 106
 107#endif  /* __ISYS_IRQ_PRIVATE_H__ */
 108