projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5ea75e0f PJ |
1 | /* |
| 2 | * Copyright © 2006-2011 Intel Corporation | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms and conditions of the GNU General Public License, | |
| 6 | * version 2, as published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 11 | * more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License along with | |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., | |
| 15 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
| 16 | * | |
| 17 | * Authors: | |
| 18 | * Eric Anholt <eric@anholt.net> | |
| 19 | * Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef _GMA_DISPLAY_H_ | |
| 23 | #define _GMA_DISPLAY_H_ | |
| 24 | ||
| 25 | struct gma_clock_t { | |
| 26 | /* given values */ | |
| 27 | int n; | |
| 28 | int m1, m2; | |
| 29 | int p1, p2; | |
| 30 | /* derived values */ | |
| 31 | int dot; | |
| 32 | int vco; | |
| 33 | int m; | |
| 34 | int p; | |
| 35 | }; | |
| 36 | ||
| 37 | struct gma_range_t { | |
| 38 | int min, max; | |
| 39 | }; | |
| 40 | ||
| 41 | struct gma_p2_t { | |
| 42 | int dot_limit; | |
| 43 | int p2_slow, p2_fast; | |
| 44 | }; | |
| 45 | ||
| 46 | struct gma_limit_t { | |
| 47 | struct gma_range_t dot, vco, n, m, m1, m2, p, p1; | |
| 48 | struct gma_p2_t p2; | |
| 49 | bool (*find_pll)(const struct gma_limit_t *, struct drm_crtc *, | |
| 50 | int target, int refclk, | |
| 51 | struct gma_clock_t *best_clock); | |
| 52 | }; | |
| 53 | ||
| 54 | struct gma_clock_funcs { | |
| 55 | void (*clock)(int refclk, struct gma_clock_t *clock); | |
| 56 | const struct gma_limit_t *(*limit)(struct drm_crtc *crtc, int refclk); | |
| 57 | bool (*pll_is_valid)(struct drm_crtc *crtc, | |
| 58 | const struct gma_limit_t *limit, | |
| 59 | struct gma_clock_t *clock); | |
| 60 | }; | |
| 61 | ||
| 62 | /* Common pipe related functions */ | |
| 63 | extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type); | |
| 64 | ||
| 65 | /* Common clock related functions */ | |
| 66 | extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk); | |
| 67 | extern void gma_clock(int refclk, struct gma_clock_t *clock); | |
| 68 | extern bool gma_pll_is_valid(struct drm_crtc *crtc, | |
| 69 | const struct gma_limit_t *limit, | |
| 70 | struct gma_clock_t *clock); | |
| 71 | extern bool gma_find_best_pll(const struct gma_limit_t *limit, | |
| 72 | struct drm_crtc *crtc, int target, int refclk, | |
| 73 | struct gma_clock_t *best_clock); | |
| 74 | #endif |