drivers/gpu/drm/tidss/tidss_dispc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
   4  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
   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 struct dispc_errata {
  50         bool i2000; /* DSS Does Not Support YUV Pixel Data Formats */
  51 };
  52
  53 enum dispc_vp_bus_type {
  54         DISPC_VP_DPI,           /* DPI output */
  55         DISPC_VP_OLDI,          /* OLDI (LVDS) output */
  56         DISPC_VP_INTERNAL,      /* SoC internal routing */
  57         DISPC_VP_MAX_BUS_TYPE,
  58 };
  59
  60 enum dispc_dss_subrevision {
  61         DISPC_K2G,
  62         DISPC_AM625,
  63         DISPC_AM65X,
  64         DISPC_J721E,
  65 };
  66
  67 struct dispc_features {
  68         int min_pclk_khz;
  69         int max_pclk_khz[DISPC_VP_MAX_BUS_TYPE];
  70
  71         struct dispc_features_scaling scaling;
  72
  73         enum dispc_dss_subrevision subrev;
  74
  75         const char *common;
  76         const u16 *common_regs;
  77         u32 num_vps;
  78         const char *vp_name[TIDSS_MAX_PORTS]; /* Should match dt reg names */
  79         const char *ovr_name[TIDSS_MAX_PORTS]; /* Should match dt reg names */
  80         const char *vpclk_name[TIDSS_MAX_PORTS]; /* Should match dt clk names */
  81         const enum dispc_vp_bus_type vp_bus_type[TIDSS_MAX_PORTS];
  82         struct tidss_vp_feat vp_feat;
  83         u32 num_planes;
  84         const char *vid_name[TIDSS_MAX_PLANES]; /* Should match dt reg names */
  85         bool vid_lite[TIDSS_MAX_PLANES];
  86         u32 vid_order[TIDSS_MAX_PLANES];
  87 };
  88
  89 extern const struct dispc_features dispc_k2g_feats;
  90 extern const struct dispc_features dispc_am625_feats;
  91 extern const struct dispc_features dispc_am65x_feats;
  92 extern const struct dispc_features dispc_j721e_feats;
  93
  94 void dispc_set_irqenable(struct dispc_device *dispc, dispc_irq_t mask);
  95 dispc_irq_t dispc_read_and_clear_irqstatus(struct dispc_device *dispc);
  96
  97 void dispc_ovr_set_plane(struct dispc_device *dispc, u32 hw_plane,
  98                          u32 hw_videoport, u32 x, u32 y, u32 layer);
  99 void dispc_ovr_enable_layer(struct dispc_device *dispc,
 100                             u32 hw_videoport, u32 layer, bool enable);
 101
 102 void dispc_vp_prepare(struct dispc_device *dispc, u32 hw_videoport,
 103                       const struct drm_crtc_state *state);
 104 void dispc_vp_enable(struct dispc_device *dispc, u32 hw_videoport,
 105                      const struct drm_crtc_state *state);
 106 void dispc_vp_disable(struct dispc_device *dispc, u32 hw_videoport);
 107 void dispc_vp_unprepare(struct dispc_device *dispc, u32 hw_videoport);
 108 bool dispc_vp_go_busy(struct dispc_device *dispc, u32 hw_videoport);
 109 void dispc_vp_go(struct dispc_device *dispc, u32 hw_videoport);
 110 int dispc_vp_bus_check(struct dispc_device *dispc, u32 hw_videoport,
 111                        const struct drm_crtc_state *state);
 112 enum drm_mode_status dispc_vp_mode_valid(struct dispc_device *dispc,
 113                                          u32 hw_videoport,
 114                                          const struct drm_display_mode *mode);
 115 int dispc_vp_enable_clk(struct dispc_device *dispc, u32 hw_videoport);
 116 void dispc_vp_disable_clk(struct dispc_device *dispc, u32 hw_videoport);
 117 int dispc_vp_set_clk_rate(struct dispc_device *dispc, u32 hw_videoport,
 118                           unsigned long rate);
 119 void dispc_vp_setup(struct dispc_device *dispc, u32 hw_videoport,
 120                     const struct drm_crtc_state *state, bool newmodeset);
 121
 122 int dispc_runtime_suspend(struct dispc_device *dispc);
 123 int dispc_runtime_resume(struct dispc_device *dispc);
 124
 125 int dispc_plane_check(struct dispc_device *dispc, u32 hw_plane,
 126                       const struct drm_plane_state *state,
 127                       u32 hw_videoport);
 128 void dispc_plane_setup(struct dispc_device *dispc, u32 hw_plane,
 129                        const struct drm_plane_state *state,
 130                        u32 hw_videoport);
 131 void dispc_plane_enable(struct dispc_device *dispc, u32 hw_plane, bool enable);
 132 const u32 *dispc_plane_formats(struct dispc_device *dispc, unsigned int *len);
 133
 134 int dispc_init(struct tidss_device *tidss);
 135 void dispc_remove(struct tidss_device *tidss);
 136
 137 #endif