src/add-ons/accelerants/radeon_hd/displayport.h

   1 /*
   2  * Copyright 2011-2013, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Alexander von Gluck IV, kallisti5@unixzen.com
   7  *              Bill Randle, billr@neocat.org
   8  */
   9 #ifndef RADEON_HD_DISPLAYPORT_H
  10 #define RADEON_HD_DISPLAYPORT_H
  11
  12
  13 #include <create_display_modes.h>
  14 #include <stdint.h>
  15 #include <SupportDefs.h>
  16
  17 #include "accelerant.h"
  18 #include "dp.h"
  19
  20
  21 // Radeon HD specific DisplayPort Configuration Data
  22 #define DP_TRAINING_AUX_RD_INTERVAL 0x000e
  23 #define DP_TPS3_SUPPORTED (1 << 6) // Stored within MAX_LANE_COUNT
  24
  25
  26 uint8 dpcd_reg_read(uint32 connectorIndex, uint16 address);
  27 void dpcd_reg_write(uint32 connectorIndex, uint16 address, uint8 value);
  28
  29 // Communication over DisplayPort AUX channel
  30 status_t dp_aux_transaction(uint32 connectorIndex, dp_aux_msg* message);
  31
  32 status_t dp_aux_set_i2c_byte(uint32 connectorIndex, uint16 address,
  33         uint8* data, bool start, bool stop);
  34 status_t dp_aux_get_i2c_byte(uint32 connectorIndex, uint16 address,
  35         uint8* data, bool start, bool stop);
  36
  37 uint32 dp_get_link_rate(uint32 connectorIndex, display_mode* mode);
  38 uint32 dp_get_lane_count(uint32 connectorIndex, display_mode* mode);
  39
  40 void dp_setup_connectors();
  41
  42 status_t dp_link_train(uint8 crtcID);
  43 status_t dp_link_train_cr(uint32 connectorIndex);
  44 status_t dp_link_train_ce(uint32 connectorIndex, bool tp3Support);
  45
  46 bool dp_is_dp12_capable(uint32 connectorIndex);
  47
  48 void debug_dp_info();
  49
  50 status_t dp_get_pixel_size_for(color_space space, size_t *pixelChunk,
  51         size_t *rowAlignment, size_t *pixelsPerChunk);
  52
  53 bool ddc2_dp_read_edid1(uint32 connectorIndex, edid1_info *edid);
  54
  55
  56 #endif /* RADEON_HD_DISPLAYPORT_H */