linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h
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   1#ifndef __NVKM_DISP_DP_H__
   2#define __NVKM_DISP_DP_H__
   3#define nvkm_dp(p) container_of((p), struct nvkm_dp, outp)
   4#include "outp.h"
   5
   6#include <core/notify.h>
   7#include <subdev/bios.h>
   8#include <subdev/bios/dp.h>
   9
  10struct nvkm_dp {
  11        union {
  12                struct nvkm_outp base;
  13                struct nvkm_outp outp;
  14        };
  15
  16        struct nvbios_dpout info;
  17        u8 version;
  18
  19        struct nvkm_i2c_aux *aux;
  20
  21        struct nvkm_notify hpd;
  22        bool present;
  23        u8 dpcd[16];
  24
  25        struct mutex mutex;
  26        struct {
  27                atomic_t done;
  28                bool mst;
  29        } lt;
  30};
  31
  32int nvkm_dp_new(struct nvkm_disp *, int index, struct dcb_output *,
  33                struct nvkm_outp **);
  34
  35/* DPCD Receiver Capabilities */
  36#define DPCD_RC00_DPCD_REV                                              0x00000
  37#define DPCD_RC01_MAX_LINK_RATE                                         0x00001
  38#define DPCD_RC02                                                       0x00002
  39#define DPCD_RC02_ENHANCED_FRAME_CAP                                       0x80
  40#define DPCD_RC02_TPS3_SUPPORTED                                           0x40
  41#define DPCD_RC02_MAX_LANE_COUNT                                           0x1f
  42#define DPCD_RC03                                                       0x00003
  43#define DPCD_RC03_MAX_DOWNSPREAD                                           0x01
  44#define DPCD_RC0E_AUX_RD_INTERVAL                                       0x0000e
  45
  46/* DPCD Link Configuration */
  47#define DPCD_LC00_LINK_BW_SET                                           0x00100
  48#define DPCD_LC01                                                       0x00101
  49#define DPCD_LC01_ENHANCED_FRAME_EN                                        0x80
  50#define DPCD_LC01_LANE_COUNT_SET                                           0x1f
  51#define DPCD_LC02                                                       0x00102
  52#define DPCD_LC02_TRAINING_PATTERN_SET                                     0x03
  53#define DPCD_LC03(l)                                            ((l) +  0x00103)
  54#define DPCD_LC03_MAX_PRE_EMPHASIS_REACHED                                 0x20
  55#define DPCD_LC03_PRE_EMPHASIS_SET                                         0x18
  56#define DPCD_LC03_MAX_SWING_REACHED                                        0x04
  57#define DPCD_LC03_VOLTAGE_SWING_SET                                        0x03
  58#define DPCD_LC0F                                                       0x0010f
  59#define DPCD_LC0F_LANE1_MAX_POST_CURSOR2_REACHED                           0x40
  60#define DPCD_LC0F_LANE1_POST_CURSOR2_SET                                   0x30
  61#define DPCD_LC0F_LANE0_MAX_POST_CURSOR2_REACHED                           0x04
  62#define DPCD_LC0F_LANE0_POST_CURSOR2_SET                                   0x03
  63#define DPCD_LC10                                                       0x00110
  64#define DPCD_LC10_LANE3_MAX_POST_CURSOR2_REACHED                           0x40
  65#define DPCD_LC10_LANE3_POST_CURSOR2_SET                                   0x30
  66#define DPCD_LC10_LANE2_MAX_POST_CURSOR2_REACHED                           0x04
  67#define DPCD_LC10_LANE2_POST_CURSOR2_SET                                   0x03
  68
  69/* DPCD Link/Sink Status */
  70#define DPCD_LS02                                                       0x00202
  71#define DPCD_LS02_LANE1_SYMBOL_LOCKED                                      0x40
  72#define DPCD_LS02_LANE1_CHANNEL_EQ_DONE                                    0x20
  73#define DPCD_LS02_LANE1_CR_DONE                                            0x10
  74#define DPCD_LS02_LANE0_SYMBOL_LOCKED                                      0x04
  75#define DPCD_LS02_LANE0_CHANNEL_EQ_DONE                                    0x02
  76#define DPCD_LS02_LANE0_CR_DONE                                            0x01
  77#define DPCD_LS03                                                       0x00203
  78#define DPCD_LS03_LANE3_SYMBOL_LOCKED                                      0x40
  79#define DPCD_LS03_LANE3_CHANNEL_EQ_DONE                                    0x20
  80#define DPCD_LS03_LANE3_CR_DONE                                            0x10
  81#define DPCD_LS03_LANE2_SYMBOL_LOCKED                                      0x04
  82#define DPCD_LS03_LANE2_CHANNEL_EQ_DONE                                    0x02
  83#define DPCD_LS03_LANE2_CR_DONE                                            0x01
  84#define DPCD_LS04                                                       0x00204
  85#define DPCD_LS04_LINK_STATUS_UPDATED                                      0x80
  86#define DPCD_LS04_DOWNSTREAM_PORT_STATUS_CHANGED                           0x40
  87#define DPCD_LS04_INTERLANE_ALIGN_DONE                                     0x01
  88#define DPCD_LS06                                                       0x00206
  89#define DPCD_LS06_LANE1_PRE_EMPHASIS                                       0xc0
  90#define DPCD_LS06_LANE1_VOLTAGE_SWING                                      0x30
  91#define DPCD_LS06_LANE0_PRE_EMPHASIS                                       0x0c
  92#define DPCD_LS06_LANE0_VOLTAGE_SWING                                      0x03
  93#define DPCD_LS07                                                       0x00207
  94#define DPCD_LS07_LANE3_PRE_EMPHASIS                                       0xc0
  95#define DPCD_LS07_LANE3_VOLTAGE_SWING                                      0x30
  96#define DPCD_LS07_LANE2_PRE_EMPHASIS                                       0x0c
  97#define DPCD_LS07_LANE2_VOLTAGE_SWING                                      0x03
  98#define DPCD_LS0C                                                       0x0020c
  99#define DPCD_LS0C_LANE3_POST_CURSOR2                                       0xc0
 100#define DPCD_LS0C_LANE2_POST_CURSOR2                                       0x30
 101#define DPCD_LS0C_LANE1_POST_CURSOR2                                       0x0c
 102#define DPCD_LS0C_LANE0_POST_CURSOR2                                       0x03
 103
 104/* DPCD Sink Control */
 105#define DPCD_SC00                                                       0x00600
 106#define DPCD_SC00_SET_POWER                                                0x03
 107#define DPCD_SC00_SET_POWER_D0                                             0x01
 108#define DPCD_SC00_SET_POWER_D3                                             0x03
 109#endif
 110