drivers/staging/media/atomisp/pci/isp/kernels/ref/ref_1.0/ia_css_ref.host.c

   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 #include <assert_support.h>
  16 #include <ia_css_frame_public.h>
  17 #include <ia_css_frame.h>
  18 #include <ia_css_binary.h>
  19 #define IA_CSS_INCLUDE_CONFIGURATIONS
  20 #include "ia_css_isp_configs.h"
  21 #include "isp.h"
  22 #include "ia_css_ref.host.h"
  23
  24 void
  25 ia_css_ref_config(
  26     struct sh_css_isp_ref_isp_config *to,
  27     const struct ia_css_ref_configuration  *from,
  28     unsigned int size)
  29 {
  30         unsigned int elems_a = ISP_VEC_NELEMS, i;
  31
  32         if (from->ref_frames[0]) {
  33                 ia_css_dma_configure_from_info(&to->port_b, &from->ref_frames[0]->info);
  34                 to->width_a_over_b = elems_a / to->port_b.elems;
  35                 to->dvs_frame_delay = from->dvs_frame_delay;
  36         } else {
  37                 to->width_a_over_b = 1;
  38                 to->dvs_frame_delay = 0;
  39                 to->port_b.elems = elems_a;
  40         }
  41         for (i = 0; i < MAX_NUM_VIDEO_DELAY_FRAMES; i++) {
  42                 if (from->ref_frames[i]) {
  43                         to->ref_frame_addr_y[i] = from->ref_frames[i]->data +
  44                                                   from->ref_frames[i]->planes.yuv.y.offset;
  45                         to->ref_frame_addr_c[i] = from->ref_frames[i]->data +
  46                                                   from->ref_frames[i]->planes.yuv.u.offset;
  47                 } else {
  48                         to->ref_frame_addr_y[i] = 0;
  49                         to->ref_frame_addr_c[i] = 0;
  50                 }
  51         }
  52
  53         /* Assume divisiblity here, may need to generalize to fixed point. */
  54         assert(elems_a % to->port_b.elems == 0);
  55 }
  56
  57 void
  58 ia_css_ref_configure(
  59     const struct ia_css_binary     *binary,
  60     const struct ia_css_frame * const *ref_frames,
  61     const uint32_t dvs_frame_delay)
  62 {
  63         struct ia_css_ref_configuration config;
  64         unsigned int i;
  65
  66         for (i = 0; i < MAX_NUM_VIDEO_DELAY_FRAMES; i++)
  67                 config.ref_frames[i] = ref_frames[i];
  68         config.dvs_frame_delay = dvs_frame_delay;
  69         ia_css_configure_ref(binary, &config);
  70 }
  71
  72 void
  73 ia_css_init_ref_state(
  74     struct sh_css_isp_ref_dmem_state *state,
  75     unsigned int size)
  76 {
  77         (void)size;
  78         assert(MAX_NUM_VIDEO_DELAY_FRAMES >= 2);
  79         state->ref_in_buf_idx = 0;
  80         state->ref_out_buf_idx = 1;
  81 }