drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/kernels/xnr/xnr_3.0/ia_css_xnr3_param.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 __IA_CSS_XNR3_PARAM_H
  16 #define __IA_CSS_XNR3_PARAM_H
  17
  18 #include "type_support.h"
  19 #ifdef ISP2401
  20 #include "vmem.h" /* needed for VMEM_ARRAY */
  21
  22 #endif
  23
  24 /* Scaling factor of the alpha values: which fixed-point value represents 1.0?
  25  * It must be chosen such that 1/min_sigma still fits in an ISP vector
  26  * element. */
  27 #define XNR_ALPHA_SCALE_LOG2        5
  28 #define XNR_ALPHA_SCALE_FACTOR      (1 << XNR_ALPHA_SCALE_LOG2)
  29
  30 /* Scaling factor of the coring values on the ISP. */
  31 #define XNR_CORING_SCALE_LOG2       (ISP_VEC_ELEMBITS-1)
  32 #define XNR_CORING_SCALE_FACTOR     (1 << XNR_CORING_SCALE_LOG2)
  33
  34 /* Scaling factor of the blending strength on the ISP. */
  35 #define XNR_BLENDING_SCALE_LOG2     (ISP_VEC_ELEMBITS-1)
  36 #define XNR_BLENDING_SCALE_FACTOR   (1 << XNR_BLENDING_SCALE_LOG2)
  37
  38 /* XNR3 filter size. Must be 11x11, 9x9 or 5x5. */
  39 #ifdef FLT_KERNEL_9x9
  40 #define XNR_FILTER_SIZE             9
  41 #else
  42 #ifdef FLT_KERNEL_11x11
  43 #define XNR_FILTER_SIZE             11
  44 #else
  45 #define XNR_FILTER_SIZE             5
  46 #endif
  47 #endif
  48
  49 /* XNR3 alpha (1/sigma) parameters on the ISP, expressed as a base (0) value
  50  * for dark areas, and a scaled diff towards the value for bright areas. */
  51 struct sh_css_xnr3_alpha_params {
  52         int32_t y0;
  53         int32_t u0;
  54         int32_t v0;
  55         int32_t ydiff;
  56         int32_t udiff;
  57         int32_t vdiff;
  58 };
  59
  60 /* XNR3 coring parameters on the ISP, expressed as a base (0) value
  61  * for dark areas, and a scaled diff towards the value for bright areas. */
  62 struct sh_css_xnr3_coring_params {
  63         int32_t u0;
  64         int32_t v0;
  65         int32_t udiff;
  66         int32_t vdiff;
  67 };
  68
  69 /* XNR3 blending strength on the ISP. */
  70 struct sh_css_xnr3_blending_params {
  71         int32_t strength;
  72 };
  73
  74 /* XNR3 ISP parameters */
  75 struct sh_css_isp_xnr3_params {
  76         struct sh_css_xnr3_alpha_params    alpha;
  77         struct sh_css_xnr3_coring_params   coring;
  78         struct sh_css_xnr3_blending_params blending;
  79 };
  80
  81 #ifdef ISP2401
  82 /*
  83  * STRUCT sh_css_isp_xnr3_vmem_params
  84  * -----------------------------------------------
  85  * ISP VMEM parameters
  86  */
  87 struct sh_css_isp_xnr3_vmem_params {
  88         VMEM_ARRAY(x, ISP_VEC_NELEMS);
  89         VMEM_ARRAY(a, ISP_VEC_NELEMS);
  90         VMEM_ARRAY(b, ISP_VEC_NELEMS);
  91         VMEM_ARRAY(c, ISP_VEC_NELEMS);
  92 };
  93
  94
  95 #endif
  96 #endif  /*__IA_CSS_XNR3_PARAM_H */