drivers/staging/media/atomisp/pci/atomisp2/css2400/css_2401_csi2p_system/isys_dma_global.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 __ISYS_DMA_GLOBAL_H_INCLUDED__
  16 #define __ISYS_DMA_GLOBAL_H_INCLUDED__
  17
  18 #include <type_support.h>
  19
  20 #define HIVE_ISYS2401_DMA_IBUF_DDR_CONN 0
  21 #define HIVE_ISYS2401_DMA_IBUF_VMEM_CONN        1
  22 #define _DMA_V2_ZERO_EXTEND             0
  23 #define _DMA_V2_SIGN_EXTEND             1
  24
  25 #define _DMA_ZERO_EXTEND     _DMA_V2_ZERO_EXTEND
  26 #define _DMA_SIGN_EXTEND     _DMA_V2_SIGN_EXTEND
  27
  28 /********************************************************
  29  *
  30  * DMA Port.
  31  *
  32  * The DMA port definition for the input system
  33  * 2401 DMA is the duplication of the DMA port
  34  * definition for the CSS system DMA. It is duplicated
  35  * here just as the temporal step before the device libary
  36  * is available. The device libary is suppose to provide
  37  * the capability of reusing the control interface of the
  38  * same device prototypes. The refactor team will work on
  39  * this, right?
  40  *
  41  ********************************************************/
  42 typedef struct isys2401_dma_port_cfg_s isys2401_dma_port_cfg_t;
  43 struct isys2401_dma_port_cfg_s {
  44         uint32_t stride;
  45         uint32_t elements;
  46         uint32_t cropping;
  47         uint32_t width;
  48  };
  49 /** end of DMA Port */
  50
  51 /************************************************
  52  *
  53  * DMA Device.
  54  *
  55  * The DMA device definition for the input system
  56  * 2401 DMA is the duplicattion of the DMA device
  57  * definition for the CSS system DMA. It is duplicated
  58  * here just as the temporal step before the device libary
  59  * is available. The device libary is suppose to provide
  60  * the capability of reusing the control interface of the
  61  * same device prototypes. The refactor team will work on
  62  * this, right?
  63  *
  64  ************************************************/
  65 typedef enum {
  66         isys2401_dma_ibuf_to_ddr_connection     = HIVE_ISYS2401_DMA_IBUF_DDR_CONN,
  67         isys2401_dma_ibuf_to_vmem_connection    = HIVE_ISYS2401_DMA_IBUF_VMEM_CONN
  68 } isys2401_dma_connection;
  69
  70 typedef enum {
  71   isys2401_dma_zero_extension = _DMA_ZERO_EXTEND,
  72   isys2401_dma_sign_extension = _DMA_SIGN_EXTEND
  73 } isys2401_dma_extension;
  74
  75 typedef struct isys2401_dma_cfg_s isys2401_dma_cfg_t;
  76 struct isys2401_dma_cfg_s {
  77         isys2401_dma_channel    channel;
  78         isys2401_dma_connection connection;
  79         isys2401_dma_extension  extension;
  80         uint32_t                height;
  81 };
  82 /** end of DMA Device */
  83
  84 /* isys2401_dma_channel limits per DMA ID */
  85 extern const isys2401_dma_channel N_ISYS2401_DMA_CHANNEL_PROCS[N_ISYS2401_DMA_ID];
  86
  87 #endif /* __ISYS_DMA_GLOBAL_H_INCLUDED__ */