LXR linux/drivers/staging/media/atomisp/pci/hive_isp_css

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Support for Intel Camera Imaging ISP subsystem.
   4 * Copyright (c) 2010-2016, 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#include "debug.h"
  17
  18#include "hmm.h"
  19
  20#ifndef __INLINE_DEBUG__
  21#include "debug_private.h"
  22#endif /* __INLINE_DEBUG__ */
  23
  24#define __INLINE_SP__
  25#include "sp.h"
  26
  27#include "assert_support.h"
  28
  29/* The address of the remote copy */
  30hrt_address     debug_buffer_address = (hrt_address) - 1;
  31ia_css_ptr      debug_buffer_ddr_address = (ia_css_ptr)-1;
  32/* The local copy */
  33static debug_data_t             debug_data;
  34debug_data_t            *debug_data_ptr = &debug_data;
  35
  36void debug_buffer_init(const hrt_address addr)
  37{
  38        debug_buffer_address = addr;
  39
  40        debug_data.head = 0;
  41        debug_data.tail = 0;
  42}
  43
  44void debug_buffer_ddr_init(const ia_css_ptr addr)
  45{
  46        debug_buf_mode_t mode = DEBUG_BUFFER_MODE_LINEAR;
  47        u32 enable = 1;
  48        u32 head = 0;
  49        u32 tail = 0;
  50        /* set the ddr queue */
  51        debug_buffer_ddr_address = addr;
  52        hmm_store(addr + DEBUG_DATA_BUF_MODE_DDR_ADDR,
  53                   &mode, sizeof(debug_buf_mode_t));
  54        hmm_store(addr + DEBUG_DATA_HEAD_DDR_ADDR,
  55                   &head, sizeof(uint32_t));
  56        hmm_store(addr + DEBUG_DATA_TAIL_DDR_ADDR,
  57                   &tail, sizeof(uint32_t));
  58        hmm_store(addr + DEBUG_DATA_ENABLE_DDR_ADDR,
  59                   &enable, sizeof(uint32_t));
  60
  61        /* set the local copy */
  62        debug_data.head = 0;
  63        debug_data.tail = 0;
  64}
  65
  66void debug_buffer_setmode(const debug_buf_mode_t mode)
  67{
  68        assert(debug_buffer_address != ((hrt_address)-1));
  69
  70        sp_dmem_store_uint32(SP0_ID,
  71                             debug_buffer_address + DEBUG_DATA_BUF_MODE_ADDR, mode);
  72}
  73