/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2006-2011 Intel Corporation * * Authors: * Eric Anholt <eric@anholt.net> * Patrik Jakobsson <patrik.r.jakobsson@gmail.com> */ #ifndef _GMA_DISPLAY_H_ #define _GMA_DISPLAY_H_ #include <linux/pm_runtime.h> struct drm_encoder; struct drm_mode_set; struct gma_clock_t { /* given values */ int n; int m1, m2; int p1, p2; /* derived values */ int dot; int vco; int m; int p; }; struct gma_range_t { int min, max; }; struct gma_p2_t { int dot_limit; int p2_slow, p2_fast; }; struct gma_limit_t { struct gma_range_t dot, vco, n, m, m1, m2, p, p1; struct gma_p2_t p2; bool (*find_pll)(const struct gma_limit_t *, struct drm_crtc *, int target, int refclk, struct gma_clock_t *best_clock); }; struct gma_clock_funcs { void (*clock)(int refclk, struct gma_clock_t *clock); const struct gma_limit_t *(*limit)(struct drm_crtc *crtc, int refclk); bool (*pll_is_valid)(struct drm_crtc *crtc, const struct gma_limit_t *limit, struct gma_clock_t *clock); }; /* Common pipe related functions */ extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type); extern void gma_wait_for_vblank(struct drm_device *dev); extern int gma_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb); extern int gma_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height); extern int gma_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); extern void gma_crtc_load_lut(struct drm_crtc *crtc); extern int gma_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, u32 size, struct drm_modeset_acquire_ctx *ctx); extern void gma_crtc_dpms(struct drm_crtc *crtc, int mode); extern void gma_crtc_prepare(struct drm_crtc *crtc); extern void gma_crtc_commit(struct drm_crtc *crtc); extern void gma_crtc_disable(struct drm_crtc *crtc); extern void gma_crtc_destroy(struct drm_crtc *crtc); extern int gma_crtc_set_config(struct drm_mode_set *set, struct drm_modeset_acquire_ctx *ctx); extern void gma_crtc_save(struct drm_crtc *crtc); extern void gma_crtc_restore(struct drm_crtc *crtc); extern void gma_encoder_prepare(struct drm_encoder *encoder); extern void gma_encoder_commit(struct drm_encoder *encoder); extern void gma_encoder_destroy(struct drm_encoder *encoder); /* Common clock related functions */ extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk); extern void gma_clock(int refclk, struct gma_clock_t *clock); extern bool gma_pll_is_valid(struct drm_crtc *crtc, const struct gma_limit_t *limit, struct gma_clock_t *clock); extern bool gma_find_best_pll(const struct gma_limit_t *limit, struct drm_crtc *crtc, int target, int refclk, struct gma_clock_t *best_clock); #endif