drm/amd/display: move public dc link function implementation to dc_link_exports

[why]
Link is a subcomponent in dc. DM should be aware of dc link structure
as one of the abstracted objects maintained by dc. However it should
have no idea of the existence of a link component in dc dedicated to
maintain the states of dc link structure. As such we are moving link interfaces
out of dc_link.h and directly added to dc.h. We are grandually fading out
the explicit inclusion of dc_link header and eventually delete it.

On dc side, since link is a subcomponent behind dc interfaces, it is not
a good idea to implement dc interfaces in each individual subcomponent
of link which is already a subcomponent of dc. So we are decoupling it
by implementing a dc_link_exports in dc. This file will be a thin
translation layer that breaks the dependency so link is able to make
interface changes without breaking DM.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 44 insertions, 65 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index f653eca09ba7..27d0242d6cbd 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -32,6 +32,7 @@
 #include "os_types.h"
 #include "fixed31_32.h"
 #include "irq_types.h"
+#include "dc_ddc_types.h"
 #include "dc_dp_types.h"
 #include "dc_hdmi_types.h"
 #include "dc_hw_types.h"
@@ -83,13 +84,8 @@ struct dc_perf_trace {
 	unsigned long last_entry_write;
 };
 
-#define DC_MAX_EDID_BUFFER_SIZE 2048
-#define DC_EDID_BLOCK_SIZE 128
 #define MAX_SURFACE_NUM 4
 #define NUM_PIXEL_FORMATS 10
-#define MAX_REPEATER_CNT 8
-
-#include "dc_ddc_types.h"
 
 enum tiling_mode {
 	TILING_MODE_INVALID,
@@ -375,66 +371,6 @@ struct dc_csc_adjustments {
 	struct fixed31_32 hue;
 };
 
-enum dpcd_downstream_port_max_bpc {
-	DOWN_STREAM_MAX_8BPC = 0,
-	DOWN_STREAM_MAX_10BPC,
-	DOWN_STREAM_MAX_12BPC,
-	DOWN_STREAM_MAX_16BPC
-};
-
-
-enum link_training_offset {
-	DPRX                = 0,
-	LTTPR_PHY_REPEATER1 = 1,
-	LTTPR_PHY_REPEATER2 = 2,
-	LTTPR_PHY_REPEATER3 = 3,
-	LTTPR_PHY_REPEATER4 = 4,
-	LTTPR_PHY_REPEATER5 = 5,
-	LTTPR_PHY_REPEATER6 = 6,
-	LTTPR_PHY_REPEATER7 = 7,
-	LTTPR_PHY_REPEATER8 = 8
-};
-
-struct dc_lttpr_caps {
-	union dpcd_rev revision;
-	uint8_t mode;
-	uint8_t max_lane_count;
-	uint8_t max_link_rate;
-	uint8_t phy_repeater_cnt;
-	uint8_t max_ext_timeout;
-	union dp_main_link_channel_coding_lttpr_cap main_link_channel_coding;
-	union dp_128b_132b_supported_lttpr_link_rates supported_128b_132b_rates;
-	uint8_t aux_rd_interval[MAX_REPEATER_CNT - 1];
-};
-
-struct dc_dongle_dfp_cap_ext {
-	bool supported;
-	uint16_t max_pixel_rate_in_mps;
-	uint16_t max_video_h_active_width;
-	uint16_t max_video_v_active_height;
-	struct dp_encoding_format_caps encoding_format_caps;
-	struct dp_color_depth_caps rgb_color_depth_caps;
-	struct dp_color_depth_caps ycbcr444_color_depth_caps;
-	struct dp_color_depth_caps ycbcr422_color_depth_caps;
-	struct dp_color_depth_caps ycbcr420_color_depth_caps;
-};
-
-struct dc_dongle_caps {
-	/* dongle type (DP converter, CV smart dongle) */
-	enum display_dongle_type dongle_type;
-	bool extendedCapValid;
-	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
-	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
-	bool is_dp_hdmi_s3d_converter;
-	bool is_dp_hdmi_ycbcr422_pass_through;
-	bool is_dp_hdmi_ycbcr420_pass_through;
-	bool is_dp_hdmi_ycbcr422_converter;
-	bool is_dp_hdmi_ycbcr420_converter;
-	uint32_t dp_hdmi_max_bpc;
-	uint32_t dp_hdmi_max_pixel_clk_in_khz;
-	uint32_t dp_hdmi_frl_max_link_bw_in_kbps;
-	struct dc_dongle_dfp_cap_ext dfp_cap_ext;
-};
 /* Scaling format */
 enum scaling_transformation {
 	SCALING_TRANSFORMATION_UNINITIALIZED,
@@ -1003,4 +939,47 @@ struct otg_phy_mux {
 };
 #endif
 
+enum dc_detect_reason {
+	DETECT_REASON_BOOT,
+	DETECT_REASON_RESUMEFROMS3S4,
+	DETECT_REASON_HPD,
+	DETECT_REASON_HPDRX,
+	DETECT_REASON_FALLBACK,
+	DETECT_REASON_RETRAIN,
+	DETECT_REASON_TDR,
+};
+
+struct dc_link_status {
+	bool link_active;
+	struct dpcd_caps *dpcd_caps;
+};
+
+#if defined(CONFIG_DRM_AMD_DC_HDCP)
+union hdcp_rx_caps {
+	struct {
+		uint8_t version;
+		uint8_t reserved;
+		struct {
+			uint8_t repeater	: 1;
+			uint8_t hdcp_capable	: 1;
+			uint8_t reserved	: 6;
+		} byte0;
+	} fields;
+	uint8_t raw[3];
+};
+
+union hdcp_bcaps {
+	struct {
+		uint8_t HDCP_CAPABLE:1;
+		uint8_t REPEATER:1;
+		uint8_t RESERVED:6;
+	} bits;
+	uint8_t raw;
+};
+
+struct hdcp_caps {
+	union hdcp_rx_caps rx_caps;
+	union hdcp_bcaps bcaps;
+};
+#endif
 #endif /* DC_TYPES_H_ */