drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/kernels/aa/aa_2/ia_css_aa2_state.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_AA2_STATE_H
  16 #define __IA_CSS_AA2_STATE_H
  17
  18 #include "type_support.h"
  19 #include "vmem.h" /* for VMEM_ARRAY*/
  20
  21 /* Denotes the maximum number of pixels per line that can be processed:
  22 * MAX_AA_VECTORS_PER_LINE  = maximum_line_width / ISP_NWAY */
  23 #ifndef MAX_AA_VECTORS_PER_LINE
  24 #error Please define MAX_AA_VECTORS_PER_LINE.
  25 #endif
  26
  27 /* This uses 2 history lines for both y, u and v*/
  28 #define AA_STATE_Y_BUFFER_HEIGHT        2
  29 #define AA_STATE_UV_BUFFER_HEIGHT       2
  30 #define AA_STATE_Y_BUFFER_WIDTH         MAX_AA_VECTORS_PER_LINE
  31 /* The number of u and v elements is half y due to yuv420 downsampling. */
  32 #define AA_STATE_UV_BUFFER_WIDTH        (AA_STATE_Y_BUFFER_WIDTH/2)
  33
  34
  35 struct ia_css_isp_aa_vmem_state {
  36         VMEM_ARRAY(y[AA_STATE_Y_BUFFER_HEIGHT], AA_STATE_Y_BUFFER_WIDTH*ISP_NWAY);
  37         VMEM_ARRAY(u[AA_STATE_UV_BUFFER_HEIGHT], AA_STATE_UV_BUFFER_WIDTH*ISP_NWAY);
  38         VMEM_ARRAY(v[AA_STATE_UV_BUFFER_HEIGHT], AA_STATE_UV_BUFFER_WIDTH*ISP_NWAY);
  39 };
  40
  41 #endif /* __IA_CSS_AA2_STATE_H */