1 /* 2 * Copyright (C) STMicroelectronics SA 2014 3 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com> 4 * Fabien Dessenne <fabien.dessenne@st.com> 5 * for STMicroelectronics. 6 * License terms: GNU General Public License (GPL), version 2 7 */ 8 9 #ifndef _STI_MIXER_H_ 10 #define _STI_MIXER_H_ 11 12 #include <drm/drmP.h> 13 14 #include "sti_layer.h" 15 16 #define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc) 17 18 /** 19 * STI Mixer subdevice structure 20 * 21 * @dev: driver device 22 * @regs: mixer registers 23 * @id: id of the mixer 24 * @drm_crtc: crtc object link to the mixer 25 * @pending_event: set if a flip event is pending on crtc 26 * @enabled: to know if the mixer is active or not 27 */ 28 struct sti_mixer { 29 struct device *dev; 30 void __iomem *regs; 31 int id; 32 struct drm_crtc drm_crtc; 33 struct drm_pending_vblank_event *pending_event; 34 bool enabled; 35 }; 36 37 const char *sti_mixer_to_str(struct sti_mixer *mixer); 38 39 struct sti_mixer *sti_mixer_create(struct device *dev, int id, 40 void __iomem *baseaddr); 41 42 int sti_mixer_set_layer_status(struct sti_mixer *mixer, 43 struct sti_layer *layer, bool status); 44 void sti_mixer_clear_all_layers(struct sti_mixer *mixer); 45 int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer); 46 int sti_mixer_active_video_area(struct sti_mixer *mixer, 47 struct drm_display_mode *mode); 48 49 void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable); 50 51 /* depth in Cross-bar control = z order */ 52 #define GAM_MIXER_NB_DEPTH_LEVEL 7 53 54 #define STI_MIXER_MAIN 0 55 #define STI_MIXER_AUX 1 56 57 #endif 58