drm/nouveau/disp/dp: maintain link in response to hpd signal
[linux-2.6-block.git] / drivers / gpu / drm / nouveau / core / engine / disp / dport.h
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1#ifndef __NVKM_DISP_DPORT_H__
2#define __NVKM_DISP_DPORT_H__
3
4/* DPCD Receiver Capabilities */
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5#define DPCD_RC00_DPCD_REV 0x00000
6#define DPCD_RC01_MAX_LINK_RATE 0x00001
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7#define DPCD_RC02 0x00002
8#define DPCD_RC02_ENHANCED_FRAME_CAP 0x80
6e8e268b 9#define DPCD_RC02_TPS3_SUPPORTED 0x40
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10#define DPCD_RC02_MAX_LANE_COUNT 0x1f
11#define DPCD_RC03 0x00003
12#define DPCD_RC03_MAX_DOWNSPREAD 0x01
fb7c2a71 13#define DPCD_RC0E_AUX_RD_INTERVAL 0x0000e
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14
15/* DPCD Link Configuration */
55f083c3 16#define DPCD_LC00_LINK_BW_SET 0x00100
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17#define DPCD_LC01 0x00101
18#define DPCD_LC01_ENHANCED_FRAME_EN 0x80
19#define DPCD_LC01_LANE_COUNT_SET 0x1f
20#define DPCD_LC02 0x00102
21#define DPCD_LC02_TRAINING_PATTERN_SET 0x03
22#define DPCD_LC03(l) ((l) + 0x00103)
23#define DPCD_LC03_MAX_PRE_EMPHASIS_REACHED 0x20
24#define DPCD_LC03_PRE_EMPHASIS_SET 0x18
25#define DPCD_LC03_MAX_SWING_REACHED 0x04
26#define DPCD_LC03_VOLTAGE_SWING_SET 0x03
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27#define DPCD_LC0F 0x0010f
28#define DPCD_LC0F_LANE1_MAX_POST_CURSOR2_REACHED 0x40
29#define DPCD_LC0F_LANE1_POST_CURSOR2_SET 0x30
30#define DPCD_LC0F_LANE0_MAX_POST_CURSOR2_REACHED 0x04
31#define DPCD_LC0F_LANE0_POST_CURSOR2_SET 0x03
32#define DPCD_LC10 0x00110
33#define DPCD_LC10_LANE3_MAX_POST_CURSOR2_REACHED 0x40
34#define DPCD_LC10_LANE3_POST_CURSOR2_SET 0x30
35#define DPCD_LC10_LANE2_MAX_POST_CURSOR2_REACHED 0x04
36#define DPCD_LC10_LANE2_POST_CURSOR2_SET 0x03
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37
38/* DPCD Link/Sink Status */
39#define DPCD_LS02 0x00202
40#define DPCD_LS02_LANE1_SYMBOL_LOCKED 0x40
41#define DPCD_LS02_LANE1_CHANNEL_EQ_DONE 0x20
42#define DPCD_LS02_LANE1_CR_DONE 0x10
43#define DPCD_LS02_LANE0_SYMBOL_LOCKED 0x04
44#define DPCD_LS02_LANE0_CHANNEL_EQ_DONE 0x02
45#define DPCD_LS02_LANE0_CR_DONE 0x01
46#define DPCD_LS03 0x00203
47#define DPCD_LS03_LANE3_SYMBOL_LOCKED 0x40
48#define DPCD_LS03_LANE3_CHANNEL_EQ_DONE 0x20
49#define DPCD_LS03_LANE3_CR_DONE 0x10
50#define DPCD_LS03_LANE2_SYMBOL_LOCKED 0x04
51#define DPCD_LS03_LANE2_CHANNEL_EQ_DONE 0x02
52#define DPCD_LS03_LANE2_CR_DONE 0x01
53#define DPCD_LS04 0x00204
54#define DPCD_LS04_LINK_STATUS_UPDATED 0x80
55#define DPCD_LS04_DOWNSTREAM_PORT_STATUS_CHANGED 0x40
56#define DPCD_LS04_INTERLANE_ALIGN_DONE 0x01
57#define DPCD_LS06 0x00206
58#define DPCD_LS06_LANE1_PRE_EMPHASIS 0xc0
59#define DPCD_LS06_LANE1_VOLTAGE_SWING 0x30
60#define DPCD_LS06_LANE0_PRE_EMPHASIS 0x0c
61#define DPCD_LS06_LANE0_VOLTAGE_SWING 0x03
62#define DPCD_LS07 0x00207
63#define DPCD_LS07_LANE3_PRE_EMPHASIS 0xc0
64#define DPCD_LS07_LANE3_VOLTAGE_SWING 0x30
65#define DPCD_LS07_LANE2_PRE_EMPHASIS 0x0c
66#define DPCD_LS07_LANE2_VOLTAGE_SWING 0x03
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67#define DPCD_LS0C 0x0020c
68#define DPCD_LS0C_LANE3_POST_CURSOR2 0xc0
69#define DPCD_LS0C_LANE2_POST_CURSOR2 0x30
70#define DPCD_LS0C_LANE1_POST_CURSOR2 0x0c
71#define DPCD_LS0C_LANE0_POST_CURSOR2 0x03
0a0afd28 72
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73void nouveau_dp_train(struct work_struct *);
74
0a0afd28 75#endif