drivers/gpu/drm/tidss/tidss_dispc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
   4  * Author: Tomi Valkeinen <[email protected]>
   5  */
   6
   7 #ifndef __TIDSS_DISPC_H__
   8 #define __TIDSS_DISPC_H__
   9
  10 #include "tidss_drv.h"
  11
  12 struct dispc_device;
  13
  14 struct drm_crtc_state;
  15
  16 enum tidss_gamma_type { TIDSS_GAMMA_8BIT, TIDSS_GAMMA_10BIT };
  17
  18 struct tidss_vp_feat {
  19         struct tidss_vp_color_feat {
  20                 u32 gamma_size;
  21                 enum tidss_gamma_type gamma_type;
  22                 bool has_ctm;
  23         } color;
  24 };
  25
  26 struct tidss_plane_feat {
  27         struct tidss_plane_color_feat {
  28                 u32 encodings;
  29                 u32 ranges;
  30                 enum drm_color_encoding default_encoding;
  31                 enum drm_color_range default_range;
  32         } color;
  33         struct tidss_plane_blend_feat {
  34                 bool global_alpha;
  35         } blend;
  36 };
  37
  38 struct dispc_features_scaling {
  39         u32 in_width_max_5tap_rgb;
  40         u32 in_width_max_3tap_rgb;
  41         u32 in_width_max_5tap_yuv;
  42         u32 in_width_max_3tap_yuv;
  43         u32 upscale_limit;
  44         u32 downscale_limit_5tap;
  45         u32 downscale_limit_3tap;
  46         u32 xinc_max;
  47 };
  48
  49 enum dispc_vp_bus_type {
  50         DISPC_VP_DPI,           /* DPI output */
  51         DISPC_VP_OLDI,          /* OLDI (LVDS) output */
  52         DISPC_VP_INTERNAL,      /* SoC internal routing */
  53         DISPC_VP_MAX_BUS_TYPE,
  54 };
  55
  56 enum dispc_dss_subrevision {
  57         DISPC_K2G,
  58         DISPC_AM65X,
  59         DISPC_J721E,
  60 };
  61
  62 struct dispc_features {
  63         int min_pclk_khz;
  64         int max_pclk_khz[DISPC_VP_MAX_BUS_TYPE];
  65
  66         struct dispc_features_scaling scaling;
  67
  68         enum dispc_dss_subrevision subrev;
  69
  70         const char *common;
  71         const u16 *common_regs;
  72         u32 num_vps;
  73         const char *vp_name[TIDSS_MAX_PORTS]; /* Should match dt reg names */
  74         const char *ovr_name[TIDSS_MAX_PORTS]; /* Should match dt reg names */
  75         const char *vpclk_name[TIDSS_MAX_PORTS]; /* Should match dt clk names */
  76         const enum dispc_vp_bus_type vp_bus_type[TIDSS_MAX_PORTS];
  77         struct tidss_vp_feat vp_feat;
  78         u32 num_planes;
  79         const char *vid_name[TIDSS_MAX_PLANES]; /* Should match dt reg names */
  80         bool vid_lite[TIDSS_MAX_PLANES];
  81         u32 vid_order[TIDSS_MAX_PLANES];
  82 };
  83
  84 extern const struct dispc_features dispc_k2g_feats;
  85 extern const struct dispc_features dispc_am65x_feats;
  86 extern const struct dispc_features dispc_j721e_feats;
  87
  88 void dispc_set_irqenable(struct dispc_device *dispc, dispc_irq_t mask);
  89 dispc_irq_t dispc_read_and_clear_irqstatus(struct dispc_device *dispc);
  90
  91 void dispc_ovr_set_plane(struct dispc_device *dispc, u32 hw_plane,
  92                          u32 hw_videoport, u32 x, u32 y, u32 layer);
  93 void dispc_ovr_enable_layer(struct dispc_device *dispc,
  94                             u32 hw_videoport, u32 layer, bool enable);
  95
  96 void dispc_vp_prepare(struct dispc_device *dispc, u32 hw_videoport,
  97                       const struct drm_crtc_state *state);
  98 void dispc_vp_enable(struct dispc_device *dispc, u32 hw_videoport,
  99                      const struct drm_crtc_state *state);
 100 void dispc_vp_disable(struct dispc_device *dispc, u32 hw_videoport);
 101 void dispc_vp_unprepare(struct dispc_device *dispc, u32 hw_videoport);
 102 bool dispc_vp_go_busy(struct dispc_device *dispc, u32 hw_videoport);
 103 void dispc_vp_go(struct dispc_device *dispc, u32 hw_videoport);
 104 int dispc_vp_bus_check(struct dispc_device *dispc, u32 hw_videoport,
 105                        const struct drm_crtc_state *state);
 106 enum drm_mode_status dispc_vp_mode_valid(struct dispc_device *dispc,
 107                                          u32 hw_videoport,
 108                                          const struct drm_display_mode *mode);
 109 int dispc_vp_enable_clk(struct dispc_device *dispc, u32 hw_videoport);
 110 void dispc_vp_disable_clk(struct dispc_device *dispc, u32 hw_videoport);
 111 int dispc_vp_set_clk_rate(struct dispc_device *dispc, u32 hw_videoport,
 112                           unsigned long rate);
 113 void dispc_vp_setup(struct dispc_device *dispc, u32 hw_videoport,
 114                     const struct drm_crtc_state *state, bool newmodeset);
 115
 116 int dispc_runtime_suspend(struct dispc_device *dispc);
 117 int dispc_runtime_resume(struct dispc_device *dispc);
 118
 119 int dispc_plane_check(struct dispc_device *dispc, u32 hw_plane,
 120                       const struct drm_plane_state *state,
 121                       u32 hw_videoport);
 122 int dispc_plane_setup(struct dispc_device *dispc, u32 hw_plane,
 123                       const struct drm_plane_state *state,
 124                       u32 hw_videoport);
 125 int dispc_plane_enable(struct dispc_device *dispc, u32 hw_plane, bool enable);
 126 const u32 *dispc_plane_formats(struct dispc_device *dispc, unsigned int *len);
 127
 128 int dispc_init(struct tidss_device *tidss);
 129 void dispc_remove(struct tidss_device *tidss);
 130
 131 #endif