diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/gma_display.h')
| -rw-r--r-- | drivers/gpu/drm/gma500/gma_display.h | 103 |
1 files changed, 103 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 000000000000..78b9f986a6e5 --- /dev/null +++ b/drivers/gpu/drm/gma500/gma_display.h @@ -0,0 +1,103 @@ +/* + * Copyright © 2006-2011 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * 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 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 void gma_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, + u16 *blue, u32 start, u32 size); +extern void gma_crtc_dpms(struct drm_crtc *crtc, int mode); +extern bool gma_crtc_mode_fixup(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_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); + +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 |