drivers/staging/media/atomisp/pci/css_2401_system/csi_rx_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 __CSI_RX_GLOBAL_H_INCLUDED__
  17 #define __CSI_RX_GLOBAL_H_INCLUDED__
  18
  19 #include <type_support.h>
  20
  21 typedef enum {
  22         CSI_MIPI_PACKET_TYPE_UNDEFINED = 0,
  23         CSI_MIPI_PACKET_TYPE_LONG,
  24         CSI_MIPI_PACKET_TYPE_SHORT,
  25         CSI_MIPI_PACKET_TYPE_RESERVED,
  26         N_CSI_MIPI_PACKET_TYPE
  27 } csi_mipi_packet_type_t;
  28
  29 typedef struct csi_rx_backend_lut_entry_s       csi_rx_backend_lut_entry_t;
  30 struct csi_rx_backend_lut_entry_s {
  31         u32     long_packet_entry;
  32         u32     short_packet_entry;
  33 };
  34
  35 typedef struct csi_rx_backend_cfg_s csi_rx_backend_cfg_t;
  36 struct csi_rx_backend_cfg_s {
  37         /* LUT entry for the packet */
  38         csi_rx_backend_lut_entry_t lut_entry;
  39
  40         /* can be derived from the Data Type */
  41         csi_mipi_packet_type_t csi_mipi_packet_type;
  42
  43         struct {
  44                 bool     comp_enable;
  45                 u32 virtual_channel;
  46                 u32 data_type;
  47                 u32 comp_scheme;
  48                 u32 comp_predictor;
  49                 u32 comp_bit_idx;
  50         } csi_mipi_cfg;
  51 };
  52
  53 typedef struct csi_rx_frontend_cfg_s csi_rx_frontend_cfg_t;
  54 struct csi_rx_frontend_cfg_s {
  55         u32 active_lanes;
  56 };
  57
  58 extern const u32 N_SHORT_PACKET_LUT_ENTRIES[N_CSI_RX_BACKEND_ID];
  59 extern const u32 N_LONG_PACKET_LUT_ENTRIES[N_CSI_RX_BACKEND_ID];
  60 extern const u32 N_CSI_RX_FE_CTRL_DLANES[N_CSI_RX_FRONTEND_ID];
  61 /* sid_width for CSI_RX_BACKEND<N>_ID */
  62 extern const u32 N_CSI_RX_BE_SID_WIDTH[N_CSI_RX_BACKEND_ID];
  63
  64 #endif /* __CSI_RX_GLOBAL_H_INCLUDED__ */