LXR linux/drivers/staging/media/atomisp/pci/atomisp2/css2400/css_2401_csi2p_system/isys_dma

   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 ********************************************************/
  42typedef struct isys2401_dma_port_cfg_s isys2401_dma_port_cfg_t;
  43struct 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 ************************************************/
  65typedef 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
  70typedef enum {
  71  isys2401_dma_zero_extension = _DMA_ZERO_EXTEND,
  72  isys2401_dma_sign_extension = _DMA_SIGN_EXTEND
  73} isys2401_dma_extension;
  74
  75typedef struct isys2401_dma_cfg_s isys2401_dma_cfg_t;
  76struct 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 */
  85extern const isys2401_dma_channel N_ISYS2401_DMA_CHANNEL_PROCS[N_ISYS2401_DMA_ID];
  86
  87#endif /* __ISYS_DMA_GLOBAL_H_INCLUDED__ */
  88