1/*
2 * Copyright (C) 2008 Maarten Maathuis.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27#ifndef __NOUVEAU_CONNECTOR_H__
28#define __NOUVEAU_CONNECTOR_H__
29#include <nvif/conn.h>
30#include <nvif/event.h>
31
32#include <nvhw/class/cl507d.h>
33#include <nvhw/class/cl907d.h>
34#include <nvhw/drf.h>
35
36#include <drm/display/drm_dp_helper.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_encoder.h>
39#include <drm/drm_util.h>
40
41#include "nouveau_crtc.h"
42#include "nouveau_encoder.h"
43
44struct nvkm_i2c_port;
45struct dcb_output;
46struct edid;
47
48#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
49struct nouveau_backlight {
50	struct backlight_device *dev;
51
52	struct drm_edp_backlight_info edp_info;
53	bool uses_dpcd : 1;
54
55	int id;
56};
57#endif
58
59#define nouveau_conn_atom(p)                                                   \
60	container_of((p), struct nouveau_conn_atom, state)
61
62struct nouveau_conn_atom {
63	struct drm_connector_state state;
64
65	struct {
66		/* The enum values specifically defined here match nv50/gf119
67		 * hw values, and the code relies on this.
68		 */
69		enum {
70			DITHERING_MODE_OFF =
71				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, DISABLE),
72			DITHERING_MODE_ON =
73				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, ENABLE),
74			DITHERING_MODE_DYNAMIC2X2 = DITHERING_MODE_ON |
75				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, DYNAMIC_2X2),
76			DITHERING_MODE_STATIC2X2 = DITHERING_MODE_ON |
77				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, STATIC_2X2),
78			DITHERING_MODE_TEMPORAL = DITHERING_MODE_ON |
79				NVDEF(NV907D, HEAD_SET_DITHER_CONTROL, MODE, TEMPORAL),
80			DITHERING_MODE_AUTO
81		} mode;
82		enum {
83			DITHERING_DEPTH_6BPC =
84				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_6_BITS),
85			DITHERING_DEPTH_8BPC =
86				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_8_BITS),
87			DITHERING_DEPTH_AUTO
88		} depth;
89	} dither;
90
91	struct {
92		int mode;	/* DRM_MODE_SCALE_* */
93		struct {
94			enum {
95				UNDERSCAN_OFF,
96				UNDERSCAN_ON,
97				UNDERSCAN_AUTO,
98			} mode;
99			u32 hborder;
100			u32 vborder;
101		} underscan;
102		bool full;
103	} scaler;
104
105	struct {
106		int color_vibrance;
107		int vibrant_hue;
108	} procamp;
109
110	union {
111		struct {
112			bool dither:1;
113			bool scaler:1;
114			bool procamp:1;
115		};
116		u8 mask;
117	} set;
118};
119
120struct nouveau_connector {
121	struct drm_connector base;
122	enum dcb_connector_type type;
123	u8 index;
124
125	struct nvif_conn conn;
126	u64 hpd_pending;
127	struct nvif_event hpd;
128	struct nvif_event irq;
129	struct work_struct irq_work;
130
131	struct drm_dp_aux aux;
132
133	/* The fixed DP encoder for this connector, if there is one */
134	struct nouveau_encoder *dp_encoder;
135
136	int dithering_mode;
137	int scaling_mode;
138
139	struct nouveau_encoder *detected_encoder;
140	struct edid *edid;
141	struct drm_display_mode *native_mode;
142#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
143	struct nouveau_backlight *backlight;
144#endif
145	/*
146	 * Our connector property code expects a nouveau_conn_atom struct
147	 * even on pre-nv50 where we do not support atomic. This embedded
148	 * version gets used in the non atomic modeset case.
149	 */
150	struct nouveau_conn_atom properties_state;
151};
152
153static inline struct nouveau_connector *nouveau_connector(
154						struct drm_connector *con)
155{
156	return container_of(con, struct nouveau_connector, base);
157}
158
159static inline bool
160nouveau_connector_is_mst(struct drm_connector *connector)
161{
162	const struct nouveau_encoder *nv_encoder;
163	const struct drm_encoder *encoder;
164
165	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
166		return false;
167
168	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
169	if (!nv_encoder)
170		return false;
171
172	encoder = &nv_encoder->base.base;
173	return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
174}
175
176#define nouveau_for_each_non_mst_connector_iter(connector, iter) \
177	drm_for_each_connector_iter(connector, iter) \
178		for_each_if(!nouveau_connector_is_mst(connector))
179
180static inline struct nouveau_connector *
181nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
182{
183	struct drm_device *dev = nv_crtc->base.dev;
184	struct drm_connector *connector;
185	struct drm_connector_list_iter conn_iter;
186	struct nouveau_connector *nv_connector = NULL;
187	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
188
189	drm_connector_list_iter_begin(dev, &conn_iter);
190	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
191		if (connector->encoder && connector->encoder->crtc == crtc) {
192			nv_connector = nouveau_connector(connector);
193			break;
194		}
195	}
196	drm_connector_list_iter_end(&conn_iter);
197
198	return nv_connector;
199}
200
201struct drm_connector *
202nouveau_connector_create(struct drm_device *, int id);
203void nouveau_connector_hpd(struct nouveau_connector *, u64 bits);
204
205extern int nouveau_tv_disable;
206extern int nouveau_ignorelid;
207extern int nouveau_duallink;
208extern int nouveau_hdmimhz;
209
210void nouveau_conn_attach_properties(struct drm_connector *);
211void nouveau_conn_reset(struct drm_connector *);
212struct drm_connector_state *
213nouveau_conn_atomic_duplicate_state(struct drm_connector *);
214void nouveau_conn_atomic_destroy_state(struct drm_connector *,
215				       struct drm_connector_state *);
216int nouveau_conn_atomic_set_property(struct drm_connector *,
217				     struct drm_connector_state *,
218				     struct drm_property *, u64);
219int nouveau_conn_atomic_get_property(struct drm_connector *,
220				     const struct drm_connector_state *,
221				     struct drm_property *, u64 *);
222struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
223enum drm_mode_status
224nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
225			      const unsigned min_clock,
226			      const unsigned max_clock,
227			      unsigned *clock);
228
229#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
230extern int nouveau_backlight_init(struct drm_connector *);
231extern void nouveau_backlight_fini(struct drm_connector *);
232extern void nouveau_backlight_ctor(void);
233extern void nouveau_backlight_dtor(void);
234#else
235static inline int
236nouveau_backlight_init(struct drm_connector *connector)
237{
238	return 0;
239}
240
241static inline void
242nouveau_backlight_fini(struct drm_connector *connector) {
243}
244
245static inline void
246nouveau_backlight_ctor(void) {
247}
248
249static inline void
250nouveau_backlight_dtor(void) {
251}
252#endif
253
254#endif /* __NOUVEAU_CONNECTOR_H__ */
255