drivers/staging/media/atomisp/pci/atomisp2/css2400/css_2401_csi2p_system/ibuf_ctrl_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 __IBUF_CTRL_GLOBAL_H_INCLUDED__
  16 #define __IBUF_CTRL_GLOBAL_H_INCLUDED__
  17
  18 #include <type_support.h>
  19
  20 #include <ibuf_cntrl_defs.h>    /* _IBUF_CNTRL_RECALC_WORDS_STATUS,
  21                                  * _IBUF_CNTRL_ARBITERS_STATUS,
  22                                  * _IBUF_CNTRL_PROC_REG_ALIGN,
  23                                  * etc.
  24                                  */
  25
  26 /* Definition of contents of main controller state register is lacking
  27  * in ibuf_cntrl_defs.h, so define these here:
  28  */
  29 #define _IBUF_CNTRL_MAIN_CNTRL_FSM_MASK                 0xf
  30 #define _IBUF_CNTRL_MAIN_CNTRL_FSM_NEXT_COMMAND_CHECK   0x9
  31 #define _IBUF_CNTRL_MAIN_CNTRL_MEM_INP_BUF_ALLOC        (1 << 8)
  32 #define _IBUF_CNTRL_DMA_SYNC_WAIT_FOR_SYNC              1
  33 #define _IBUF_CNTRL_DMA_SYNC_FSM_WAIT_FOR_ACK           (0x3 << 1)
  34
  35 typedef struct ib_buffer_s      ib_buffer_t;
  36 struct  ib_buffer_s {
  37         uint32_t        start_addr;     /* start address of the buffer in the
  38                                          * "input-buffer hardware block"
  39                                          */
  40
  41         uint32_t        stride;         /* stride per buffer line (in bytes) */
  42         uint32_t        lines;          /* lines in the buffer */
  43 };
  44
  45 typedef struct ibuf_ctrl_cfg_s ibuf_ctrl_cfg_t;
  46 struct ibuf_ctrl_cfg_s {
  47
  48         bool online;
  49
  50         struct {
  51                 /* DMA configuration */
  52                 uint32_t channel;
  53                 uint32_t cmd; /* must be _DMA_V2_MOVE_A2B_NO_SYNC_CHK_COMMAND */
  54
  55                 /* DMA reconfiguration */
  56                 uint32_t shift_returned_items;
  57                 uint32_t elems_per_word_in_ibuf;
  58                 uint32_t elems_per_word_in_dest;
  59         } dma_cfg;
  60
  61         ib_buffer_t ib_buffer;
  62
  63         struct {
  64                 uint32_t stride;
  65                 uint32_t start_addr;
  66                 uint32_t lines;
  67         } dest_buf_cfg;
  68
  69         uint32_t items_per_store;
  70         uint32_t stores_per_frame;
  71
  72         struct {
  73                 uint32_t sync_cmd;      /* must be _STREAM2MMIO_CMD_TOKEN_SYNC_FRAME */
  74                 uint32_t store_cmd;     /* must be _STREAM2MMIO_CMD_TOKEN_STORE_PACKETS */
  75         } stream2mmio_cfg;
  76 };
  77
  78 extern const uint32_t N_IBUF_CTRL_PROCS[N_IBUF_CTRL_ID];
  79
  80 #endif /* __IBUF_CTRL_GLOBAL_H_INCLUDED__ */