git.ipfire.org Git - thirdparty/kernel/linux.git/blob

   1 /*
   2  * Support for Intel Camera Imaging ISP subsystem.
   3  * Copyright (c) 2010 - 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 #include "ia_css_bayer_io.host.h"
  16 #include "dma.h"
  17 #include "math_support.h"
  18 #ifndef IA_CSS_NO_DEBUG
  19 #include "ia_css_debug.h"
  20 #endif
  21 #include "ia_css_isp_params.h"
  22 #include "ia_css_frame.h"
  23
  24 void
  25 ia_css_bayer_io_config(
  26     const struct ia_css_binary      *binary,
  27     const struct sh_css_binary_args *args)
  28 {
  29         const struct ia_css_frame *in_frame = args->in_frame;
  30         const struct ia_css_frame **out_frames = (const struct ia_css_frame **)
  31                 &args->out_frame;
  32         const struct ia_css_frame_info *in_frame_info = (in_frame) ? &in_frame->info :
  33                 &binary->in_frame_info;
  34
  35         const unsigned int ddr_bits_per_element = sizeof(short) * 8;
  36         const unsigned int ddr_elems_per_word = ceil_div(HIVE_ISP_DDR_WORD_BITS,
  37                                                 ddr_bits_per_element);
  38         unsigned int size_get = 0, size_put = 0;
  39         unsigned int offset = 0;
  40
  41         if (binary->info->mem_offsets.offsets.param) {
  42                 size_get = binary->info->mem_offsets.offsets.param->dmem.get.size;
  43                 offset = binary->info->mem_offsets.offsets.param->dmem.get.offset;
  44         }
  45
  46         if (size_get) {
  47                 struct ia_css_common_io_config *to = (struct ia_css_common_io_config *)
  48                                                      &binary->mem_params.params[IA_CSS_PARAM_CLASS_PARAM][IA_CSS_ISP_DMEM].address[offset];
  49                 struct dma_port_config config;
  50 #ifndef IA_CSS_NO_DEBUG
  51                 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
  52                                     "ia_css_bayer_io_config() get part enter:\n");
  53 #endif
  54
  55                 ia_css_dma_configure_from_info(&config, in_frame_info);
  56                 // The base_address of the input frame will be set in the ISP
  57                 to->width = in_frame_info->res.width;
  58                 to->height = in_frame_info->res.height;
  59                 to->stride = config.stride;
  60                 to->ddr_elems_per_word = ddr_elems_per_word;
  61 #ifndef IA_CSS_NO_DEBUG
  62                 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
  63                                     "ia_css_bayer_io_config() get part leave:\n");
  64 #endif
  65         }
  66
  67         if (binary->info->mem_offsets.offsets.param) {
  68                 size_put = binary->info->mem_offsets.offsets.param->dmem.put.size;
  69                 offset = binary->info->mem_offsets.offsets.param->dmem.put.offset;
  70         }
  71
  72         if (size_put) {
  73                 struct ia_css_common_io_config *to = (struct ia_css_common_io_config *)
  74                                                      &binary->mem_params.params[IA_CSS_PARAM_CLASS_PARAM][IA_CSS_ISP_DMEM].address[offset];
  75                 struct dma_port_config config;
  76 #ifndef IA_CSS_NO_DEBUG
  77                 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
  78                                     "ia_css_bayer_io_config() put part enter:\n");
  79 #endif
  80
  81                 ia_css_dma_configure_from_info(&config, &out_frames[0]->info);
  82                 to->base_address = out_frames[0]->data;
  83                 to->width = out_frames[0]->info.res.width;
  84                 to->height = out_frames[0]->info.res.height;
  85                 to->stride = config.stride;
  86                 to->ddr_elems_per_word = ddr_elems_per_word;
  87
  88 #ifndef IA_CSS_NO_DEBUG
  89                 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
  90                                     "ia_css_bayer_io_config() put part leave:\n");
  91 #endif
  92         }
  93 }