linux/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/dma_local.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Support for Intel Camera Imaging ISP subsystem.
   4 * Copyright (c) 2010-2015, 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 __DMA_LOCAL_H_INCLUDED__
  17#define __DMA_LOCAL_H_INCLUDED__
  18
  19#include <type_support.h>
  20#include "dma_global.h"
  21
  22#include <defs.h>                               /* HRTCAT() */
  23#include <bits.h>                               /* _hrt_get_bits() */
  24#include <hive_isp_css_defs.h>          /* HIVE_DMA_NUM_CHANNELS */
  25#include <dma_v2_defs.h>
  26
  27#define _DMA_FSM_GROUP_CMD_IDX                                          _DMA_V2_FSM_GROUP_CMD_IDX
  28#define _DMA_FSM_GROUP_ADDR_A_IDX                                       _DMA_V2_FSM_GROUP_ADDR_SRC_IDX
  29#define _DMA_FSM_GROUP_ADDR_B_IDX                                       _DMA_V2_FSM_GROUP_ADDR_DEST_IDX
  30
  31#define _DMA_FSM_GROUP_CMD_CTRL_IDX                                     _DMA_V2_FSM_GROUP_CMD_CTRL_IDX
  32
  33#define _DMA_FSM_GROUP_FSM_CTRL_IDX                                     _DMA_V2_FSM_GROUP_FSM_CTRL_IDX
  34#define _DMA_FSM_GROUP_FSM_CTRL_STATE_IDX                       _DMA_V2_FSM_GROUP_FSM_CTRL_STATE_IDX
  35#define _DMA_FSM_GROUP_FSM_CTRL_REQ_DEV_IDX                     _DMA_V2_FSM_GROUP_FSM_CTRL_REQ_DEV_IDX
  36#define _DMA_FSM_GROUP_FSM_CTRL_REQ_ADDR_IDX            _DMA_V2_FSM_GROUP_FSM_CTRL_REQ_ADDR_IDX
  37#define _DMA_FSM_GROUP_FSM_CTRL_REQ_STRIDE_IDX          _DMA_V2_FSM_GROUP_FSM_CTRL_REQ_STRIDE_IDX
  38#define _DMA_FSM_GROUP_FSM_CTRL_REQ_XB_IDX                      _DMA_V2_FSM_GROUP_FSM_CTRL_REQ_XB_IDX
  39#define _DMA_FSM_GROUP_FSM_CTRL_REQ_YB_IDX                      _DMA_V2_FSM_GROUP_FSM_CTRL_REQ_YB_IDX
  40#define _DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_DEV_IDX        _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_REQ_DEV_IDX
  41#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_DEV_IDX         _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_DEV_IDX
  42#define _DMA_FSM_GROUP_FSM_CTRL_WR_ADDR_IDX                     _DMA_V2_FSM_GROUP_FSM_CTRL_WR_ADDR_IDX
  43#define _DMA_FSM_GROUP_FSM_CTRL_WR_STRIDE_IDX           _DMA_V2_FSM_GROUP_FSM_CTRL_WR_STRIDE_IDX
  44#define _DMA_FSM_GROUP_FSM_CTRL_PACK_REQ_XB_IDX         _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_REQ_XB_IDX
  45#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_YB_IDX          _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_YB_IDX
  46#define _DMA_FSM_GROUP_FSM_CTRL_PACK_WR_XB_IDX          _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_WR_XB_IDX
  47#define _DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_REQ_IDX       _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_ELEM_REQ_IDX
  48#define _DMA_FSM_GROUP_FSM_CTRL_PACK_ELEM_WR_IDX        _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_ELEM_WR_IDX
  49#define _DMA_FSM_GROUP_FSM_CTRL_PACK_S_Z_IDX            _DMA_V2_FSM_GROUP_FSM_CTRL_PACK_S_Z_IDX
  50
  51#define _DMA_FSM_GROUP_FSM_PACK_IDX                                     _DMA_V2_FSM_GROUP_FSM_PACK_IDX
  52#define _DMA_FSM_GROUP_FSM_PACK_STATE_IDX                       _DMA_V2_FSM_GROUP_FSM_PACK_STATE_IDX
  53#define _DMA_FSM_GROUP_FSM_PACK_CNT_YB_IDX                      _DMA_V2_FSM_GROUP_FSM_PACK_CNT_YB_IDX
  54#define _DMA_FSM_GROUP_FSM_PACK_CNT_XB_REQ_IDX          _DMA_V2_FSM_GROUP_FSM_PACK_CNT_XB_REQ_IDX
  55#define _DMA_FSM_GROUP_FSM_PACK_CNT_XB_WR_IDX           _DMA_V2_FSM_GROUP_FSM_PACK_CNT_XB_WR_IDX
  56
  57#define _DMA_FSM_GROUP_FSM_REQ_IDX                                      _DMA_V2_FSM_GROUP_FSM_REQ_IDX
  58#define _DMA_FSM_GROUP_FSM_REQ_STATE_IDX                        _DMA_V2_FSM_GROUP_FSM_REQ_STATE_IDX
  59#define _DMA_FSM_GROUP_FSM_REQ_CNT_YB_IDX                       _DMA_V2_FSM_GROUP_FSM_REQ_CNT_YB_IDX
  60#define _DMA_FSM_GROUP_FSM_REQ_CNT_XB_IDX                       _DMA_V2_FSM_GROUP_FSM_REQ_CNT_XB_IDX
  61
  62#define _DMA_FSM_GROUP_FSM_WR_IDX                                       _DMA_V2_FSM_GROUP_FSM_WR_IDX
  63#define _DMA_FSM_GROUP_FSM_WR_STATE_IDX                         _DMA_V2_FSM_GROUP_FSM_WR_STATE_IDX
  64#define _DMA_FSM_GROUP_FSM_WR_CNT_YB_IDX                        _DMA_V2_FSM_GROUP_FSM_WR_CNT_YB_IDX
  65#define _DMA_FSM_GROUP_FSM_WR_CNT_XB_IDX                        _DMA_V2_FSM_GROUP_FSM_WR_CNT_XB_IDX
  66
  67#define _DMA_DEV_INTERF_MAX_BURST_IDX                   _DMA_V2_DEV_INTERF_MAX_BURST_IDX
  68
  69/*
  70 * Macro's to compute the DMA parameter register indices
  71 */
  72#define DMA_SEL_COMP(comp)     (((comp)  & _hrt_ones(_DMA_V2_ADDR_SEL_COMP_BITS))            << _DMA_V2_ADDR_SEL_COMP_IDX)
  73#define DMA_SEL_CH(ch)         (((ch)    & _hrt_ones(_DMA_V2_ADDR_SEL_CH_REG_BITS))          << _DMA_V2_ADDR_SEL_CH_REG_IDX)
  74#define DMA_SEL_PARAM(param)   (((param) & _hrt_ones(_DMA_V2_ADDR_SEL_PARAM_BITS))           << _DMA_V2_ADDR_SEL_PARAM_IDX)
  75/* CG = Connection Group */
  76#define DMA_SEL_CG_INFO(info)  (((info)  & _hrt_ones(_DMA_V2_ADDR_SEL_GROUP_COMP_INFO_BITS)) << _DMA_V2_ADDR_SEL_GROUP_COMP_INFO_IDX)
  77#define DMA_SEL_CG_COMP(comp)  (((comp)  & _hrt_ones(_DMA_V2_ADDR_SEL_GROUP_COMP_BITS))      << _DMA_V2_ADDR_SEL_GROUP_COMP_IDX)
  78#define DMA_SEL_DEV_INFO(info) (((info)  & _hrt_ones(_DMA_V2_ADDR_SEL_DEV_INTERF_INFO_BITS)) << _DMA_V2_ADDR_SEL_DEV_INTERF_INFO_IDX)
  79#define DMA_SEL_DEV_ID(dev)    (((dev)   & _hrt_ones(_DMA_V2_ADDR_SEL_DEV_INTERF_IDX_BITS))  << _DMA_V2_ADDR_SEL_DEV_INTERF_IDX_IDX)
  80
  81#define DMA_COMMAND_FSM_REG_IDX                                 (DMA_SEL_COMP(_DMA_V2_SEL_FSM_CMD) >> 2)
  82#define DMA_CHANNEL_PARAM_REG_IDX(ch, param)    ((DMA_SEL_COMP(_DMA_V2_SEL_CH_REG) | DMA_SEL_CH(ch) | DMA_SEL_PARAM(param)) >> 2)
  83#define DMA_CG_INFO_REG_IDX(info_id, comp_id)   ((DMA_SEL_COMP(_DMA_V2_SEL_CONN_GROUP) | DMA_SEL_CG_INFO(info_id) | DMA_SEL_CG_COMP(comp_id)) >> 2)
  84#define DMA_DEV_INFO_REG_IDX(info_id, dev_id)   ((DMA_SEL_COMP(_DMA_V2_SEL_DEV_INTERF) | DMA_SEL_DEV_INFO(info_id) | DMA_SEL_DEV_ID(dev_id)) >> 2)
  85#define DMA_RST_REG_IDX                                                 (DMA_SEL_COMP(_DMA_V2_SEL_RESET) >> 2)
  86
  87#define DMA_GET_CONNECTION(val)    _hrt_get_bits(val, _DMA_V2_CONNECTION_IDX,    _DMA_V2_CONNECTION_BITS)
  88#define DMA_GET_EXTENSION(val)     _hrt_get_bits(val, _DMA_V2_EXTENSION_IDX,     _DMA_V2_EXTENSION_BITS)
  89#define DMA_GET_ELEMENTS(val)      _hrt_get_bits(val, _DMA_V2_ELEMENTS_IDX,      _DMA_V2_ELEMENTS_BITS)
  90#define DMA_GET_CROPPING(val)      _hrt_get_bits(val, _DMA_V2_LEFT_CROPPING_IDX, _DMA_V2_LEFT_CROPPING_BITS)
  91
  92typedef enum {
  93        DMA_CTRL_STATE_IDLE,
  94        DMA_CTRL_STATE_REQ_RCV,
  95        DMA_CTRL_STATE_RCV,
  96        DMA_CTRL_STATE_RCV_REQ,
  97        DMA_CTRL_STATE_INIT,
  98        N_DMA_CTRL_STATES
  99} dma_ctrl_states_t;
 100
 101typedef enum {
 102        DMA_COMMAND_READ,
 103        DMA_COMMAND_WRITE,
 104        DMA_COMMAND_SET_CHANNEL,
 105        DMA_COMMAND_SET_PARAM,
 106        DMA_COMMAND_READ_SPECIFIC,
 107        DMA_COMMAND_WRITE_SPECIFIC,
 108        DMA_COMMAND_INIT,
 109        DMA_COMMAND_INIT_SPECIFIC,
 110        DMA_COMMAND_RST,
 111        N_DMA_COMMANDS
 112} dma_commands_t;
 113
 114typedef enum {
 115        DMA_RW_STATE_IDLE,
 116        DMA_RW_STATE_REQ,
 117        DMA_RW_STATE_NEXT_LINE,
 118        DMA_RW_STATE_UNLOCK_CHANNEL,
 119        N_DMA_RW_STATES
 120} dma_rw_states_t;
 121
 122typedef enum {
 123        DMA_FIFO_STATE_WILL_BE_FULL,
 124        DMA_FIFO_STATE_FULL,
 125        DMA_FIFO_STATE_EMPTY,
 126        N_DMA_FIFO_STATES
 127} dma_fifo_states_t;
 128
 129/* typedef struct dma_state_s                   dma_state_t; */
 130typedef struct dma_channel_state_s      dma_channel_state_t;
 131typedef struct dma_port_state_s         dma_port_state_t;
 132
 133struct dma_port_state_s {
 134        bool                       req_cs;
 135        bool                       req_we_n;
 136        bool                       req_run;
 137        bool                       req_ack;
 138        bool                       send_cs;
 139        bool                       send_we_n;
 140        bool                       send_run;
 141        bool                       send_ack;
 142        dma_fifo_states_t          fifo_state;
 143        int                        fifo_counter;
 144};
 145
 146struct dma_channel_state_s {
 147        int                        connection;
 148        bool                       sign_extend;
 149        int                        height;
 150        int                        stride_a;
 151        int                        elems_a;
 152        int                        cropping_a;
 153        int                        width_a;
 154        int                        stride_b;
 155        int                        elems_b;
 156        int                        cropping_b;
 157        int                        width_b;
 158};
 159
 160struct dma_state_s {
 161        bool                       fsm_command_idle;
 162        bool                       fsm_command_run;
 163        bool                       fsm_command_stalling;
 164        bool                       fsm_command_error;
 165        dma_commands_t             last_command;
 166        int                        last_command_channel;
 167        int                        last_command_param;
 168        dma_commands_t             current_command;
 169        int                        current_addr_a;
 170        int                        current_addr_b;
 171        bool                       fsm_ctrl_idle;
 172        bool                       fsm_ctrl_run;
 173        bool                       fsm_ctrl_stalling;
 174        bool                       fsm_ctrl_error;
 175        dma_ctrl_states_t          fsm_ctrl_state;
 176        int                        fsm_ctrl_source_dev;
 177        int                        fsm_ctrl_source_addr;
 178        int                        fsm_ctrl_source_stride;
 179        int                        fsm_ctrl_source_width;
 180        int                        fsm_ctrl_source_height;
 181        int                        fsm_ctrl_pack_source_dev;
 182        int                        fsm_ctrl_pack_dest_dev;
 183        int                        fsm_ctrl_dest_addr;
 184        int                        fsm_ctrl_dest_stride;
 185        int                        fsm_ctrl_pack_source_width;
 186        int                        fsm_ctrl_pack_dest_height;
 187        int                        fsm_ctrl_pack_dest_width;
 188        int                        fsm_ctrl_pack_source_elems;
 189        int                        fsm_ctrl_pack_dest_elems;
 190        int                        fsm_ctrl_pack_extension;
 191        int                                                pack_idle;
 192        int                            pack_run;
 193        int                                pack_stalling;
 194        int                                pack_error;
 195        int                        pack_cnt_height;
 196        int                        pack_src_cnt_width;
 197        int                        pack_dest_cnt_width;
 198        dma_rw_states_t            read_state;
 199        int                        read_cnt_height;
 200        int                        read_cnt_width;
 201        dma_rw_states_t            write_state;
 202        int                        write_height;
 203        int                        write_width;
 204        dma_port_state_t           port_states[HIVE_ISP_NUM_DMA_CONNS];
 205        dma_channel_state_t        channel_states[HIVE_DMA_NUM_CHANNELS];
 206};
 207
 208#endif /* __DMA_LOCAL_H_INCLUDED__ */
 209