drivers/staging/media/atomisp/pci/css_2401_system/ibuf_ctrl_global.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Support for Intel Camera Imaging ISP subsystem.
   4  * Copyright (c) 2015, Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  */
  15
  16 #ifndef __IBUF_CTRL_GLOBAL_H_INCLUDED__
  17 #define __IBUF_CTRL_GLOBAL_H_INCLUDED__
  18
  19 #include <type_support.h>
  20
  21 #include <ibuf_cntrl_defs.h>    /* _IBUF_CNTRL_RECALC_WORDS_STATUS,
  22                                  * _IBUF_CNTRL_ARBITERS_STATUS,
  23                                  * _IBUF_CNTRL_PROC_REG_ALIGN,
  24                                  * etc.
  25                                  */
  26
  27 /* Definition of contents of main controller state register is lacking
  28  * in ibuf_cntrl_defs.h, so define these here:
  29  */
  30 #define _IBUF_CNTRL_MAIN_CNTRL_FSM_MASK                 0xf
  31 #define _IBUF_CNTRL_MAIN_CNTRL_FSM_NEXT_COMMAND_CHECK   0x9
  32 #define _IBUF_CNTRL_MAIN_CNTRL_MEM_INP_BUF_ALLOC        BIT(8)
  33 #define _IBUF_CNTRL_DMA_SYNC_WAIT_FOR_SYNC              1
  34 #define _IBUF_CNTRL_DMA_SYNC_FSM_WAIT_FOR_ACK           (0x3 << 1)
  35
  36 struct  isp2401_ib_buffer_s {
  37         u32     start_addr;     /* start address of the buffer in the
  38                                          * "input-buffer hardware block"
  39                                          */
  40
  41         u32     stride;         /* stride per buffer line (in bytes) */
  42         u32     lines;          /* lines in the buffer */
  43 };
  44 typedef struct isp2401_ib_buffer_s      isp2401_ib_buffer_t;
  45
  46 typedef struct ibuf_ctrl_cfg_s ibuf_ctrl_cfg_t;
  47 struct ibuf_ctrl_cfg_s {
  48         bool online;
  49
  50         struct {
  51                 /* DMA configuration */
  52                 u32 channel;
  53                 u32 cmd; /* must be _DMA_V2_MOVE_A2B_NO_SYNC_CHK_COMMAND */
  54
  55                 /* DMA reconfiguration */
  56                 u32 shift_returned_items;
  57                 u32 elems_per_word_in_ibuf;
  58                 u32 elems_per_word_in_dest;
  59         } dma_cfg;
  60
  61         isp2401_ib_buffer_t ib_buffer;
  62
  63         struct {
  64                 u32 stride;
  65                 u32 start_addr;
  66                 u32 lines;
  67         } dest_buf_cfg;
  68
  69         u32 items_per_store;
  70         u32 stores_per_frame;
  71
  72         struct {
  73                 u32 sync_cmd;   /* must be _STREAM2MMIO_CMD_TOKEN_SYNC_FRAME */
  74                 u32 store_cmd;  /* must be _STREAM2MMIO_CMD_TOKEN_STORE_PACKETS */
  75         } stream2mmio_cfg;
  76 };
  77
  78 extern const u32 N_IBUF_CTRL_PROCS[N_IBUF_CTRL_ID];
  79
  80 #endif /* __IBUF_CTRL_GLOBAL_H_INCLUDED__ */