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_LAYER_H_ 10 #define _STI_LAYER_H_ 11 12 #include <drm/drmP.h> 13 14 #define to_sti_layer(x) container_of(x, struct sti_layer, plane) 15 16 #define STI_LAYER_TYPE_SHIFT 8 17 #define STI_LAYER_TYPE_MASK (~((1<<STI_LAYER_TYPE_SHIFT)-1)) 18 19 struct sti_layer; 20 21 enum sti_layer_type { 22 STI_GDP = 1 << STI_LAYER_TYPE_SHIFT, 23 STI_VID = 2 << STI_LAYER_TYPE_SHIFT, 24 STI_CUR = 3 << STI_LAYER_TYPE_SHIFT, 25 STI_BCK = 4 << STI_LAYER_TYPE_SHIFT, 26 STI_VDP = 5 << STI_LAYER_TYPE_SHIFT 27 }; 28 29 enum sti_layer_id_of_type { 30 STI_ID_0 = 0, 31 STI_ID_1 = 1, 32 STI_ID_2 = 2, 33 STI_ID_3 = 3 34 }; 35 36 enum sti_layer_desc { 37 STI_GDP_0 = STI_GDP | STI_ID_0, 38 STI_GDP_1 = STI_GDP | STI_ID_1, 39 STI_GDP_2 = STI_GDP | STI_ID_2, 40 STI_GDP_3 = STI_GDP | STI_ID_3, 41 STI_VID_0 = STI_VID | STI_ID_0, 42 STI_VID_1 = STI_VID | STI_ID_1, 43 STI_HQVDP_0 = STI_VDP | STI_ID_0, 44 STI_CURSOR = STI_CUR, 45 STI_BACK = STI_BCK 46 }; 47 48 /** 49 * STI layer functions structure 50 * 51 * @get_formats: get layer supported formats 52 * @get_nb_formats: get number of format supported 53 * @init: initialize the layer 54 * @prepare: prepare layer before rendering 55 * @commit: set layer for rendering 56 * @disable: disable layer 57 */ 58 struct sti_layer_funcs { 59 const uint32_t* (*get_formats)(struct sti_layer *layer); 60 unsigned int (*get_nb_formats)(struct sti_layer *layer); 61 void (*init)(struct sti_layer *layer); 62 int (*prepare)(struct sti_layer *layer, bool first_prepare); 63 int (*commit)(struct sti_layer *layer); 64 int (*disable)(struct sti_layer *layer); 65 }; 66 67 /** 68 * STI layer structure 69 * 70 * @plane: drm plane it is bound to (if any) 71 * @fb: drm fb it is bound to 72 * @crtc: crtc it is bound to 73 * @mode: display mode 74 * @desc: layer type & id 75 * @device: driver device 76 * @regs: layer registers 77 * @ops: layer functions 78 * @zorder: layer z-order 79 * @mixer_id: id of the mixer used to display the layer 80 * @enabled: to know if the layer is active or not 81 * @src_x src_y: coordinates of the input (fb) area 82 * @src_w src_h: size of the input (fb) area 83 * @dst_x dst_y: coordinates of the output (crtc) area 84 * @dst_w dst_h: size of the output (crtc) area 85 * @format: format 86 * @pitches: pitch of 'planes' (eg: Y, U, V) 87 * @offsets: offset of 'planes' 88 * @vaddr: virtual address of the input buffer 89 * @paddr: physical address of the input buffer 90 */ 91 struct sti_layer { 92 struct drm_plane plane; 93 struct drm_framebuffer *fb; 94 struct drm_crtc *crtc; 95 struct drm_display_mode *mode; 96 enum sti_layer_desc desc; 97 struct device *dev; 98 void __iomem *regs; 99 const struct sti_layer_funcs *ops; 100 int zorder; 101 int mixer_id; 102 bool enabled; 103 int src_x, src_y; 104 int src_w, src_h; 105 int dst_x, dst_y; 106 int dst_w, dst_h; 107 uint32_t format; 108 unsigned int pitches[4]; 109 unsigned int offsets[4]; 110 void *vaddr; 111 dma_addr_t paddr; 112 }; 113 114 struct sti_layer *sti_layer_create(struct device *dev, int desc, 115 void __iomem *baseaddr); 116 int sti_layer_prepare(struct sti_layer *layer, 117 struct drm_crtc *crtc, 118 struct drm_framebuffer *fb, 119 struct drm_display_mode *mode, 120 int mixer_id, 121 int dest_x, int dest_y, 122 int dest_w, int dest_h, 123 int src_x, int src_y, 124 int src_w, int src_h); 125 int sti_layer_commit(struct sti_layer *layer); 126 int sti_layer_disable(struct sti_layer *layer); 127 const uint32_t *sti_layer_get_formats(struct sti_layer *layer); 128 unsigned int sti_layer_get_nb_formats(struct sti_layer *layer); 129 const char *sti_layer_to_str(struct sti_layer *layer); 130 131 #endif 132