drivers/video/rockchip/transmitter/dpcd_edid.h

   1 #ifndef __DPCD_EDID_H
   2 #define __DPCD_EDID_H
   3 #include "../../edid.h"
   4
   5 #define DPCD_REV                                        0x00
   6 #define DPCD_MAX_LINK_RATE                              0x01
   7 #define DPCD_MAX_LANE_CNT                               0x02
   8
   9 #define DPCD_MAX_DOWNSPREAD                             0x03
  10 #define DPCD_NORP                                       0x04
  11 #define DPCD_DOWNSTREAMPORT_PRESENT                     0x05
  12
  13 #define DPCD_RECEIVE_PORT0_CAP_0                        0x08
  14 #define DPCD_RECEIVE_PORT0_CAP_1                        0x09
  15 #define DPCD_RECEIVE_PORT0_CAP_2                        0x0a
  16 #define DPCD_RECEIVE_PORT0_CAP_3                        0x0b
  17
  18 #define DPCD_LINK_BW_SET                                0x100
  19 #define DPCD_LANE_CNT_SET                               0x101
  20 #define DPCD_TRAINING_PATTERN_SET                       0x102
  21 #define DPCD_TRAINING_LANE0_SET                         0x103
  22 #define DPCD_TRAINING_LANE1_SET                         0x104
  23 #define DPCD_TRAINING_LANE2_SET                         0x105
  24 #define DPCD_TRAINING_LANE3_SET                         0x106
  25 #define DPCD_DOWNSPREAD_CTRL                            0x107
  26
  27 #define DPCD_SINK_COUNT                                 0x200
  28 #define DPCD_DEVICE_SERVICE_IRQ_VECTOR                  0x201
  29 #define DPCD_LANE0_1_STATUS                             0x202
  30 #define DPCD_LANE2_3_STATUS                             0x203
  31 #define DPCD_LANE_ALIGN_STATUS_UPDATED                  0x204
  32 #define DPCD_SINK_STATUS                                0x205
  33 #define DPCD_ADJUST_REQUEST_LANE0_1                     0x206
  34 #define DPCD_ADJUST_REQUEST_LANE2_3                     0x207
  35 #define DPCD_TRAINING_SCORE_LANE0                       0x208
  36 #define DPCD_TRAINING_SCORE_LANE1                       0x209
  37 #define DPCD_TRAINING_SCORE_LANE2                       0x20a
  38 #define DPCD_TRAINING_SCORE_LANE3                       0x20b
  39 #define DPCD_SINK_POWER_STATE                           0x0600
  40
  41 /* DPCD_ADDR_MAX_LANE_COUNT */
  42 #define DPCD_ENHANCED_FRAME_CAP(x)              (((x) >> 7) & 0x1)
  43 #define DPCD_MAX_LANE_COUNT(x)                  ((x) & 0x1f)
  44
  45 /* DPCD_ADDR_LANE_COUNT_SET */
  46 #define DPCD_ENHANCED_FRAME_EN                  (0x1 << 7)
  47 #define DPCD_LANE_COUNT_SET(x)                  ((x) & 0x1f)
  48
  49 /* DPCD_ADDR_TRAINING_PATTERN_SET */
  50 #define DPCD_SCRAMBLING_DISABLED                (0x1 << 5)
  51 #define DPCD_SCRAMBLING_ENABLED                 (0x0 << 5)
  52 #define DPCD_TRAINING_PATTERN_2                 (0x2 << 0)
  53 #define DPCD_TRAINING_PATTERN_1                 (0x1 << 0)
  54 #define DPCD_TRAINING_PATTERN_DISABLED          (0x0 << 0)
  55
  56 /* DPCD_ADDR_TRAINING_LANE0_SET */
  57 #define DPCD_MAX_PRE_EMPHASIS_REACHED           (0x1 << 5)
  58 #define DPCD_PRE_EMPHASIS_SET(x)                (((x) & 0x3) << 3)
  59 #define DPCD_PRE_EMPHASIS_GET(x)                (((x) >> 3) & 0x3)
  60 #define DPCD_PRE_EMPHASIS_PATTERN2_LEVEL0       (0x0 << 3)
  61 #define DPCD_MAX_SWING_REACHED                  (0x1 << 2)
  62 #define DPCD_VOLTAGE_SWING_SET(x)               (((x) & 0x3) << 0)
  63 #define DPCD_VOLTAGE_SWING_GET(x)               (((x) >> 0) & 0x3)
  64 #define DPCD_VOLTAGE_SWING_PATTERN1_LEVEL0      (0x0 << 0)
  65
  66 /* DPCD_ADDR_LANE0_1_STATUS */
  67 #define DPCD_LANE_SYMBOL_LOCKED                 (0x1 << 2)
  68 #define DPCD_LANE_CHANNEL_EQ_DONE               (0x1 << 1)
  69 #define DPCD_LANE_CR_DONE                       (0x1 << 0)
  70 #define DPCD_CHANNEL_EQ_BITS                    (DPCD_LANE_CR_DONE|     \
  71                                                  DPCD_LANE_CHANNEL_EQ_DONE|\
  72                                                  DPCD_LANE_SYMBOL_LOCKED)
  73
  74 #define DPCD_TEST_REQUEST                               0x218
  75 #define DPCD_TEST_LINK_RATE                             0x219
  76
  77 #define DPCD_TEST_LANE_COUNT                            0x220
  78 #define DPCD_TEST_RESPONSE                              0x260
  79 #define DPCD_TEST_EDID_CHECKSUM                         0x261
  80 #define TEST_ACK                                        0x01
  81 #define DPCD_TEST_EDID_Checksum_Write                   0x04//bit position
  82
  83 #define DPCD_TEST_EDID_Checksum                         0x261
  84
  85
  86 #define DPCD_SPECIFIC_INTERRUPT                         0x10
  87 #define DPCD_USER_COMM1                                 0x22//define for downstream HDMI Rx sense detection
  88
  89 #define AUX_ADDR_7_0(x)                                 (((x) >> 0) & 0xff)
  90 #define AUX_ADDR_15_8(x)                                (((x) >> 8) & 0xff)
  91 #define AUX_ADDR_19_16(x)                               (((x) >> 16) & 0x0f)
  92
  93 #define AUX_RX_COMM_I2C_DEFER                           (0x2 << 2)
  94 #define AUX_RX_COMM_AUX_DEFER                           (0x2 << 0)
  95
  96 /* DPCD_ADDR_LANE_ALIGN__STATUS_UPDATED */
  97 #define DPCD_LINK_STATUS_UPDATED                        (0x1 << 7)
  98 #define DPCD_DOWNSTREAM_PORT_STATUS_CHANGED             (0x1 << 6)
  99 #define DPCD_INTERLANE_ALIGN_DONE                       (0x1 << 0)
 100
 101 /* DPCD_ADDR_TEST_REQUEST */
 102 #define DPCD_TEST_EDID_READ                             (0x1 << 2)
 103
 104 /* DPCD_ADDR_TEST_RESPONSE */
 105 #define DPCD_TEST_EDID_CHECKSUM_WRITE                   (0x1 << 2)
 106
 107 /* DPCD_ADDR_SINK_POWER_STATE */
 108 #define DPCD_SET_POWER_STATE_D0                         (0x1 << 0)
 109 #define DPCD_SET_POWER_STATE_D4                         (0x2 << 0)
 110
 111
 112 /*
 113  * EDID device address is 0x50.
 114  * However, if necessary, you must have set upper address
 115  * into E-EDID in I2C device, 0x30.
 116  */
 117
 118 #define EDID_ADDR                                       0x50
 119 #define E_EDID_ADDR                                     0x30
 120 #define EDID_EXTENSION_FLAG                             0x7e
 121 #define EDID_CHECKSUM                                   0x7f
 122
 123 static unsigned char inline edp_calc_edid_check_sum(unsigned char *edid_data)
 124 {
 125         int i;
 126         unsigned char sum = 0;
 127
 128         for (i = 0; i < EDID_LENGTH; i++)
 129                 sum = sum + edid_data[i];
 130
 131         return sum;
 132 }
 133
 134 #endif