drivers/gpu/drm/rockchip/cdn-dp-core.h

   1 /*
   2  * Copyright (C) 2016 Chris Zhong <zyw@rock-chips.com>
   3  * Copyright (C) 2016 ROCKCHIP, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef _CDN_DP_CORE_H
  16 #define _CDN_DP_CORE_H
  17
  18 #include <drm/drmP.h>
  19 #include <drm/drm_dp_helper.h>
  20 #include <drm/drm_panel.h>
  21 #include <drm/drm_probe_helper.h>
  22 #include "rockchip_drm_drv.h"
  23
  24 #define MAX_PHY         2
  25
  26 enum audio_format {
  27         AFMT_I2S = 0,
  28         AFMT_SPDIF = 1,
  29         AFMT_UNUSED,
  30 };
  31
  32 struct audio_info {
  33         enum audio_format format;
  34         int sample_rate;
  35         int channels;
  36         int sample_width;
  37 };
  38
  39 enum vic_pxl_encoding_format {
  40         PXL_RGB = 0x1,
  41         YCBCR_4_4_4 = 0x2,
  42         YCBCR_4_2_2 = 0x4,
  43         YCBCR_4_2_0 = 0x8,
  44         Y_ONLY = 0x10,
  45 };
  46
  47 struct video_info {
  48         bool h_sync_polarity;
  49         bool v_sync_polarity;
  50         bool interlaced;
  51         int color_depth;
  52         enum vic_pxl_encoding_format color_fmt;
  53 };
  54
  55 struct cdn_firmware_header {
  56         u32 size_bytes; /* size of the entire header+image(s) in bytes */
  57         u32 header_size; /* size of just the header in bytes */
  58         u32 iram_size; /* size of iram */
  59         u32 dram_size; /* size of dram */
  60 };
  61
  62 struct cdn_dp_port {
  63         struct cdn_dp_device *dp;
  64         struct notifier_block event_nb;
  65         struct extcon_dev *extcon;
  66         struct phy *phy;
  67         u8 lanes;
  68         bool phy_enabled;
  69         u8 id;
  70 };
  71
  72 struct cdn_dp_device {
  73         struct device *dev;
  74         struct drm_device *drm_dev;
  75         struct drm_connector connector;
  76         struct drm_encoder encoder;
  77         struct drm_display_mode mode;
  78         struct platform_device *audio_pdev;
  79         struct work_struct event_work;
  80         struct edid *edid;
  81
  82         struct mutex lock;
  83         bool connected;
  84         bool active;
  85         bool suspended;
  86
  87         const struct firmware *fw;      /* cdn dp firmware */
  88         unsigned int fw_version;        /* cdn fw version */
  89         bool fw_loaded;
  90
  91         void __iomem *regs;
  92         struct regmap *grf;
  93         struct clk *core_clk;
  94         struct clk *pclk;
  95         struct clk *spdif_clk;
  96         struct clk *grf_clk;
  97         struct reset_control *spdif_rst;
  98         struct reset_control *dptx_rst;
  99         struct reset_control *apb_rst;
 100         struct reset_control *core_rst;
 101         struct audio_info audio_info;
 102         struct video_info video_info;
 103         struct drm_dp_link link;
 104         struct cdn_dp_port *port[MAX_PHY];
 105         u8 ports;
 106         u8 lanes;
 107         int active_port;
 108
 109         u8 dpcd[DP_RECEIVER_CAP_SIZE];
 110         bool sink_has_audio;
 111 };
 112 #endif  /* _CDN_DP_CORE_H */