#ifndef __NVKM_DISP_DPORT_H__
#define __NVKM_DISP_DPORT_H__

/* DPCD Receiver Capabilities */
#define DPCD_RC00                                                       0x00000
#define DPCD_RC00_DPCD_REV                                                 0xff
#define DPCD_RC01                                                       0x00001
#define DPCD_RC01_MAX_LINK_RATE                                            0xff
#define DPCD_RC02                                                       0x00002
#define DPCD_RC02_ENHANCED_FRAME_CAP                                       0x80
#define DPCD_RC02_MAX_LANE_COUNT                                           0x1f
#define DPCD_RC03                                                       0x00003
#define DPCD_RC03_MAX_DOWNSPREAD                                           0x01

/* DPCD Link Configuration */
#define DPCD_LC00                                                       0x00100
#define DPCD_LC00_LINK_BW_SET                                              0xff
#define DPCD_LC01                                                       0x00101
#define DPCD_LC01_ENHANCED_FRAME_EN                                        0x80
#define DPCD_LC01_LANE_COUNT_SET                                           0x1f
#define DPCD_LC02                                                       0x00102
#define DPCD_LC02_TRAINING_PATTERN_SET                                     0x03
#define DPCD_LC03(l)                                            ((l) +  0x00103)
#define DPCD_LC03_MAX_PRE_EMPHASIS_REACHED                                 0x20
#define DPCD_LC03_PRE_EMPHASIS_SET                                         0x18
#define DPCD_LC03_MAX_SWING_REACHED                                        0x04
#define DPCD_LC03_VOLTAGE_SWING_SET                                        0x03

/* DPCD Link/Sink Status */
#define DPCD_LS02                                                       0x00202
#define DPCD_LS02_LANE1_SYMBOL_LOCKED                                      0x40
#define DPCD_LS02_LANE1_CHANNEL_EQ_DONE                                    0x20
#define DPCD_LS02_LANE1_CR_DONE                                            0x10
#define DPCD_LS02_LANE0_SYMBOL_LOCKED                                      0x04
#define DPCD_LS02_LANE0_CHANNEL_EQ_DONE                                    0x02
#define DPCD_LS02_LANE0_CR_DONE                                            0x01
#define DPCD_LS03                                                       0x00203
#define DPCD_LS03_LANE3_SYMBOL_LOCKED                                      0x40
#define DPCD_LS03_LANE3_CHANNEL_EQ_DONE                                    0x20
#define DPCD_LS03_LANE3_CR_DONE                                            0x10
#define DPCD_LS03_LANE2_SYMBOL_LOCKED                                      0x04
#define DPCD_LS03_LANE2_CHANNEL_EQ_DONE                                    0x02
#define DPCD_LS03_LANE2_CR_DONE                                            0x01
#define DPCD_LS04                                                       0x00204
#define DPCD_LS04_LINK_STATUS_UPDATED                                      0x80
#define DPCD_LS04_DOWNSTREAM_PORT_STATUS_CHANGED                           0x40
#define DPCD_LS04_INTERLANE_ALIGN_DONE                                     0x01
#define DPCD_LS06                                                       0x00206
#define DPCD_LS06_LANE1_PRE_EMPHASIS                                       0xc0
#define DPCD_LS06_LANE1_VOLTAGE_SWING                                      0x30
#define DPCD_LS06_LANE0_PRE_EMPHASIS                                       0x0c
#define DPCD_LS06_LANE0_VOLTAGE_SWING                                      0x03
#define DPCD_LS07                                                       0x00207
#define DPCD_LS07_LANE3_PRE_EMPHASIS                                       0xc0
#define DPCD_LS07_LANE3_VOLTAGE_SWING                                      0x30
#define DPCD_LS07_LANE2_PRE_EMPHASIS                                       0x0c
#define DPCD_LS07_LANE2_VOLTAGE_SWING                                      0x03

struct nouveau_disp;
struct dcb_output;

struct nouveau_dp_func {
	int (*pattern)(struct nouveau_disp *, struct dcb_output *,
		       int head, int pattern);
	int (*lnk_ctl)(struct nouveau_disp *, struct dcb_output *, int head,
		       int link_nr, int link_bw, bool enh_frame);
	int (*drv_ctl)(struct nouveau_disp *, struct dcb_output *, int head,
		       int lane, int swing, int preem);
};

extern const struct nouveau_dp_func nv94_sor_dp_func;
extern const struct nouveau_dp_func nvd0_sor_dp_func;
extern const struct nouveau_dp_func nv50_pior_dp_func;

int nouveau_dp_train(struct nouveau_disp *, const struct nouveau_dp_func *,
		     struct dcb_output *, int, u32);

#endif