LXR linux/drivers/media/platform/qcom/camss-8x16/camss-ispif.h

   1/*
   2 * camss-ispif.h
   3 *
   4 * Qualcomm MSM Camera Subsystem - ISPIF (ISP Interface) Module
   5 *
   6 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
   7 * Copyright (C) 2015-2017 Linaro Ltd.
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 and
  11 * only version 2 as published by the Free Software Foundation.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 */
  18#ifndef QC_MSM_CAMSS_ISPIF_H
  19#define QC_MSM_CAMSS_ISPIF_H
  20
  21#include <linux/clk.h>
  22#include <media/media-entity.h>
  23#include <media/v4l2-device.h>
  24#include <media/v4l2-subdev.h>
  25
  26/* Number of ISPIF lines - same as number of CSID hardware modules */
  27#define MSM_ISPIF_LINE_NUM 2
  28
  29#define MSM_ISPIF_PAD_SINK 0
  30#define MSM_ISPIF_PAD_SRC 1
  31#define MSM_ISPIF_PADS_NUM 2
  32
  33#define MSM_ISPIF_VFE_NUM 1
  34
  35enum ispif_intf {
  36        PIX0,
  37        RDI0,
  38        PIX1,
  39        RDI1,
  40        RDI2
  41};
  42
  43struct ispif_intf_cmd_reg {
  44        u32 cmd_0;
  45        u32 cmd_1;
  46};
  47
  48struct ispif_line {
  49        u8 id;
  50        u8 csid_id;
  51        u8 vfe_id;
  52        enum ispif_intf interface;
  53        struct v4l2_subdev subdev;
  54        struct media_pad pads[MSM_ISPIF_PADS_NUM];
  55        struct v4l2_mbus_framefmt fmt[MSM_ISPIF_PADS_NUM];
  56};
  57
  58struct ispif_device {
  59        void __iomem *base;
  60        void __iomem *base_clk_mux;
  61        u32 irq;
  62        char irq_name[30];
  63        struct camss_clock *clock;
  64        int nclocks;
  65        struct camss_clock  *clock_for_reset;
  66        int nclocks_for_reset;
  67        struct completion reset_complete;
  68        int power_count;
  69        struct mutex power_lock;
  70        struct ispif_intf_cmd_reg intf_cmd[MSM_ISPIF_VFE_NUM];
  71        struct mutex config_lock;
  72        struct ispif_line line[MSM_ISPIF_LINE_NUM];
  73};
  74
  75struct resources_ispif;
  76
  77int msm_ispif_subdev_init(struct ispif_device *ispif,
  78                          const struct resources_ispif *res);
  79
  80int msm_ispif_register_entities(struct ispif_device *ispif,
  81                                struct v4l2_device *v4l2_dev);
  82
  83void msm_ispif_unregister_entities(struct ispif_device *ispif);
  84
  85#endif /* QC_MSM_CAMSS_ISPIF_H */
  86