1 /* 2 * Copyright 2006-2008, Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Axel Dörfler, axeld@pinc-software.de 7 */ 8 #ifndef INTEL_EXTREME_ACCELERANT_H 9 #define INTEL_EXTREME_ACCELERANT_H 10 11 12 #include "intel_extreme.h" 13 14 #include <edid.h> 15 #include <video_overlay.h> 16 17 18 struct overlay { 19 overlay_buffer buffer; 20 addr_t buffer_base; 21 uint32 buffer_offset; 22 addr_t state_base; 23 uint32 state_offset; 24 }; 25 26 struct overlay_frame { 27 int16 h_start; 28 int16 v_start; 29 uint16 width; 30 uint16 height; 31 }; 32 33 struct accelerant_info { 34 vuint8 *regs; 35 area_id regs_area; 36 37 intel_shared_info *shared_info; 38 area_id shared_info_area; 39 40 display_mode *mode_list; // cloned list of standard display modes 41 area_id mode_list_area; 42 43 struct overlay_registers *overlay_registers; 44 overlay *current_overlay; 45 overlay_view last_overlay_view; 46 overlay_frame last_overlay_frame; 47 uint32 last_horizontal_overlay_scale; 48 uint32 last_vertical_overlay_scale; 49 uint32 overlay_position_buffer_offset; 50 51 edid1_info edid_info; 52 bool has_edid; 53 54 // limited 3D support for overlay on i965 55 addr_t context_base; 56 uint32 context_offset; 57 bool context_set; 58 59 int device; 60 uint8 head_mode; 61 bool is_clone; 62 }; 63 64 #define HEAD_MODE_A_ANALOG 0x01 65 #define HEAD_MODE_B_DIGITAL 0x02 66 #define HEAD_MODE_CLONE 0x03 67 68 extern accelerant_info *gInfo; 69 70 // register access 71 72 inline uint32 73 read32(uint32 offset) 74 { 75 return *(volatile uint32 *)(gInfo->regs + offset); 76 } 77 78 inline void 79 write32(uint32 offset, uint32 value) 80 { 81 *(volatile uint32 *)(gInfo->regs + offset) = value; 82 } 83 84 85 // dpms.cpp 86 extern void enable_display_plane(bool enable); 87 extern void set_display_power_mode(uint32 mode); 88 89 // engine.cpp 90 extern void uninit_ring_buffer(ring_buffer &ringBuffer); 91 extern void setup_ring_buffer(ring_buffer &ringBuffer, const char *name); 92 93 // modes.cpp 94 extern void wait_for_vblank(void); 95 extern void set_frame_buffer_base(void); 96 extern status_t create_mode_list(void); 97 98 // memory.cpp 99 extern void intel_free_memory(uint32 base); 100 extern status_t intel_allocate_memory(size_t size, uint32 flags, uint32 &base); 101 102 #endif /* INTEL_EXTREME_ACCELERANT_H */ 103