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Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/gma500/gma_display.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/gma_display.h b/drivers/gpu/drm/gma500/gma_display.h new file mode 100644 index 000000000..c8b611a2f --- /dev/null +++ b/drivers/gpu/drm/gma500/gma_display.h @@ -0,0 +1,91 @@ +/* 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> +#include <drm/drm_vblank.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 void gma_crtc_load_lut(struct drm_crtc *crtc); +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_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags, + 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 const struct drm_crtc_funcs gma_crtc_funcs; + +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 |