drivers/staging/media/atomisp/pci/atomisp2/css2400/css_2401_csi2p_system/host/isys_irq_private.h

   1 /*
   2  * Support for Intel Camera Imaging ISP subsystem.
   3  * Copyright (c) 2015, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  */
  14
  15 #ifndef __ISYS_IRQ_PRIVATE_H__
  16 #define __ISYS_IRQ_PRIVATE_H__
  17
  18 #include "isys_irq_global.h"
  19 #include "isys_irq_local.h"
  20
  21 #if defined(USE_INPUT_SYSTEM_VERSION_2401)
  22
  23 /* -------------------------------------------------------+
  24  |             Native command interface (NCI)             |
  25  + -------------------------------------------------------*/
  26
  27 /**
  28 * @brief Get the isys irq status.
  29 * Refer to "isys_irq.h" for details.
  30 */
  31 STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_state_get(
  32         const isys_irq_ID_t     isys_irqc_id,
  33         isys_irqc_state_t *state)
  34 {
  35         state->edge     = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_EDGE_REG_IDX);
  36         state->mask     = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_MASK_REG_IDX);
  37         state->status   = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_STATUS_REG_IDX);
  38         state->enable   = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_ENABLE_REG_IDX);
  39         state->level_no = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_LEVEL_NO_REG_IDX);
  40         /*
  41         ** Invalid to read/load from write-only register 'clear'
  42         ** state->clear = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_CLEAR_REG_IDX);
  43         */
  44 }
  45
  46 /**
  47 * @brief Dump the isys irq status.
  48 * Refer to "isys_irq.h" for details.
  49 */
  50 STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_state_dump(
  51         const isys_irq_ID_t     isys_irqc_id,
  52         const isys_irqc_state_t *state)
  53 {
  54         ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  55                 "isys irq controller id %d"
  56                 "\n\tstatus:0x%x\n\tedge:0x%x\n\tmask:0x%x"
  57                 "\n\tenable:0x%x\n\tlevel_not_pulse:0x%x\n",
  58                 isys_irqc_id,
  59                 state->status, state->edge, state->mask, state->enable, state->level_no);
  60 }
  61
  62 /** end of NCI */
  63
  64 /* -------------------------------------------------------+
  65  |              Device level interface (DLI)              |
  66  + -------------------------------------------------------*/
  67
  68 /* Support functions */
  69 STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_reg_store(
  70         const isys_irq_ID_t     isys_irqc_id,
  71         const unsigned int      reg_idx,
  72         const hrt_data  value)
  73 {
  74         unsigned int reg_addr;
  75
  76         assert(isys_irqc_id < N_ISYS_IRQ_ID);
  77         assert(reg_idx <= ISYS_IRQ_LEVEL_NO_REG_IDX);
  78
  79         reg_addr = ISYS_IRQ_BASE[isys_irqc_id] + (reg_idx * sizeof(hrt_data));
  80         ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  81                 "isys irq store at addr(0x%x) val(%u)\n", reg_addr, (unsigned int)value);
  82
  83         ia_css_device_store_uint32(reg_addr, value);
  84 }
  85
  86 STORAGE_CLASS_ISYS2401_IRQ_C hrt_data isys_irqc_reg_load(
  87         const isys_irq_ID_t     isys_irqc_id,
  88         const unsigned int      reg_idx)
  89 {
  90         unsigned int reg_addr;
  91         hrt_data value;
  92
  93         assert(isys_irqc_id < N_ISYS_IRQ_ID);
  94         assert(reg_idx <= ISYS_IRQ_LEVEL_NO_REG_IDX);
  95
  96         reg_addr = ISYS_IRQ_BASE[isys_irqc_id] + (reg_idx * sizeof(hrt_data));
  97         value = ia_css_device_load_uint32(reg_addr);
  98         ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
  99                 "isys irq load from addr(0x%x) val(%u)\n", reg_addr, (unsigned int)value);
 100
 101         return value;
 102 }
 103
 104 /** end of DLI */
 105
 106 #endif /* defined(USE_INPUT_SYSTEM_VERSION_2401) */
 107
 108 #endif  /* __ISYS_IRQ_PRIVATE_H__ */