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