root/drivers/gpu/drm/gma500/gma_display.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright © 2006-2011 Intel Corporation
   4  *
   5  * Authors:
   6  *      Eric Anholt <eric@anholt.net>
   7  *      Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
   8  */
   9 
  10 #ifndef _GMA_DISPLAY_H_
  11 #define _GMA_DISPLAY_H_
  12 
  13 #include <linux/pm_runtime.h>
  14 
  15 struct drm_encoder;
  16 struct drm_mode_set;
  17 
  18 struct gma_clock_t {
  19         /* given values */
  20         int n;
  21         int m1, m2;
  22         int p1, p2;
  23         /* derived values */
  24         int dot;
  25         int vco;
  26         int m;
  27         int p;
  28 };
  29 
  30 struct gma_range_t {
  31         int min, max;
  32 };
  33 
  34 struct gma_p2_t {
  35         int dot_limit;
  36         int p2_slow, p2_fast;
  37 };
  38 
  39 struct gma_limit_t {
  40         struct gma_range_t dot, vco, n, m, m1, m2, p, p1;
  41         struct gma_p2_t p2;
  42         bool (*find_pll)(const struct gma_limit_t *, struct drm_crtc *,
  43                          int target, int refclk,
  44                          struct gma_clock_t *best_clock);
  45 };
  46 
  47 struct gma_clock_funcs {
  48         void (*clock)(int refclk, struct gma_clock_t *clock);
  49         const struct gma_limit_t *(*limit)(struct drm_crtc *crtc, int refclk);
  50         bool (*pll_is_valid)(struct drm_crtc *crtc,
  51                              const struct gma_limit_t *limit,
  52                              struct gma_clock_t *clock);
  53 };
  54 
  55 /* Common pipe related functions */
  56 extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type);
  57 extern void gma_wait_for_vblank(struct drm_device *dev);
  58 extern int gma_pipe_set_base(struct drm_crtc *crtc, int x, int y,
  59                              struct drm_framebuffer *old_fb);
  60 extern int gma_crtc_cursor_set(struct drm_crtc *crtc,
  61                                struct drm_file *file_priv,
  62                                uint32_t handle,
  63                                uint32_t width, uint32_t height);
  64 extern int gma_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
  65 extern void gma_crtc_load_lut(struct drm_crtc *crtc);
  66 extern int gma_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
  67                               u16 *blue, u32 size,
  68                               struct drm_modeset_acquire_ctx *ctx);
  69 extern void gma_crtc_dpms(struct drm_crtc *crtc, int mode);
  70 extern void gma_crtc_prepare(struct drm_crtc *crtc);
  71 extern void gma_crtc_commit(struct drm_crtc *crtc);
  72 extern void gma_crtc_disable(struct drm_crtc *crtc);
  73 extern void gma_crtc_destroy(struct drm_crtc *crtc);
  74 extern int gma_crtc_set_config(struct drm_mode_set *set,
  75                                struct drm_modeset_acquire_ctx *ctx);
  76 
  77 extern void gma_crtc_save(struct drm_crtc *crtc);
  78 extern void gma_crtc_restore(struct drm_crtc *crtc);
  79 
  80 extern void gma_encoder_prepare(struct drm_encoder *encoder);
  81 extern void gma_encoder_commit(struct drm_encoder *encoder);
  82 extern void gma_encoder_destroy(struct drm_encoder *encoder);
  83 
  84 /* Common clock related functions */
  85 extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk);
  86 extern void gma_clock(int refclk, struct gma_clock_t *clock);
  87 extern bool gma_pll_is_valid(struct drm_crtc *crtc,
  88                              const struct gma_limit_t *limit,
  89                              struct gma_clock_t *clock);
  90 extern bool gma_find_best_pll(const struct gma_limit_t *limit,
  91                               struct drm_crtc *crtc, int target, int refclk,
  92                               struct gma_clock_t *best_clock);
  93 #endif