1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2009-2011, Intel Corporation.
4  */
5 
6 #ifndef __INTEL_DRV_H__
7 #define __INTEL_DRV_H__
8 
9 #include <linux/i2c.h>
10 #include <linux/i2c-algo-bit.h>
11 #include <drm/drm_crtc.h>
12 #include <drm/drm_crtc_helper.h>
13 #include <drm/drm_encoder.h>
14 #include <drm/drm_probe_helper.h>
15 #include <drm/drm_vblank.h>
16 #include "gma_display.h"
17 
18 /*
19  * Display related stuff
20  */
21 
22 /* maximum connectors per crtcs in the mode set */
23 #define INTELFB_CONN_LIMIT 4
24 
25 /* Intel Pipe Clone Bit */
26 #define INTEL_HDMIB_CLONE_BIT 1
27 #define INTEL_HDMIC_CLONE_BIT 2
28 #define INTEL_HDMID_CLONE_BIT 3
29 #define INTEL_HDMIE_CLONE_BIT 4
30 #define INTEL_HDMIF_CLONE_BIT 5
31 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
32 #define INTEL_SDVO_TV_CLONE_BIT 7
33 #define INTEL_SDVO_LVDS_CLONE_BIT 8
34 #define INTEL_ANALOG_CLONE_BIT 9
35 #define INTEL_TV_CLONE_BIT 10
36 #define INTEL_DP_B_CLONE_BIT 11
37 #define INTEL_DP_C_CLONE_BIT 12
38 #define INTEL_DP_D_CLONE_BIT 13
39 #define INTEL_LVDS_CLONE_BIT 14
40 #define INTEL_DVO_TMDS_CLONE_BIT 15
41 #define INTEL_DVO_LVDS_CLONE_BIT 16
42 #define INTEL_EDP_CLONE_BIT 17
43 
44 /* these are outputs from the chip - integrated only
45  * external chips are via DVO or SDVO output */
46 #define INTEL_OUTPUT_UNUSED 0
47 #define INTEL_OUTPUT_ANALOG 1
48 #define INTEL_OUTPUT_DVO 2
49 #define INTEL_OUTPUT_SDVO 3
50 #define INTEL_OUTPUT_LVDS 4
51 #define INTEL_OUTPUT_TVOUT 5
52 #define INTEL_OUTPUT_HDMI 6
53 #define INTEL_OUTPUT_MIPI 7
54 #define INTEL_OUTPUT_MIPI2 8
55 #define INTEL_OUTPUT_DISPLAYPORT 9
56 #define INTEL_OUTPUT_EDP 10
57 
58 /*
59  * Hold information useally put on the device driver privates here,
60  * since it needs to be shared across multiple of devices drivers privates.
61  */
62 struct psb_intel_mode_device {
63 
64 	/*
65 	 * Abstracted memory manager operations
66 	 */
67 	 size_t(*bo_offset) (struct drm_device *dev, void *bo);
68 
69 	/*
70 	 * LVDS info
71 	 */
72 	int backlight_duty_cycle;	/* restore backlight to this value */
73 	bool panel_wants_dither;
74 	struct drm_display_mode *panel_fixed_mode;
75 	struct drm_display_mode *panel_fixed_mode2;
76 	struct drm_display_mode *vbt_mode;	/* if any */
77 
78 	uint32_t saveBLC_PWM_CTL;
79 };
80 
81 struct psb_intel_i2c_chan {
82 	/* for getting at dev. private (mmio etc.) */
83 	struct drm_device *drm_dev;
84 	u32 reg;		/* GPIO reg */
85 	struct i2c_adapter adapter;
86 	struct i2c_algo_bit_data algo;
87 	u8 slave_addr;
88 };
89 
90 struct gma_encoder {
91 	struct drm_encoder base;
92 	int type;
93 	bool needs_tv_clock;
94 	void (*hot_plug)(struct gma_encoder *);
95 	int crtc_mask;
96 	int clone_mask;
97 	u32 ddi_select;	/* Channel info */
98 #define DDI0_SELECT	0x01
99 #define DDI1_SELECT	0x02
100 #define DP_MASK		0x8000
101 #define DDI_MASK	0x03
102 	void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
103 
104 	/* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
105 	   own set of output privates */
106 	struct psb_intel_i2c_chan *i2c_bus;
107 	struct psb_intel_i2c_chan *ddc_bus;
108 };
109 
110 struct gma_connector {
111 	struct drm_connector base;
112 	struct gma_encoder *encoder;
113 
114 	void (*save)(struct drm_connector *connector);
115 	void (*restore)(struct drm_connector *connector);
116 };
117 
118 struct psb_intel_crtc_state {
119 	uint32_t saveDSPCNTR;
120 	uint32_t savePIPECONF;
121 	uint32_t savePIPESRC;
122 	uint32_t saveDPLL;
123 	uint32_t saveFP0;
124 	uint32_t saveFP1;
125 	uint32_t saveHTOTAL;
126 	uint32_t saveHBLANK;
127 	uint32_t saveHSYNC;
128 	uint32_t saveVTOTAL;
129 	uint32_t saveVBLANK;
130 	uint32_t saveVSYNC;
131 	uint32_t saveDSPSTRIDE;
132 	uint32_t saveDSPSIZE;
133 	uint32_t saveDSPPOS;
134 	uint32_t saveDSPBASE;
135 	uint32_t savePalette[256];
136 };
137 
138 struct gma_crtc {
139 	struct drm_crtc base;
140 	int pipe;
141 	int plane;
142 	uint32_t cursor_addr;
143 	struct gtt_range *cursor_gt;
144 	u8 lut_adj[256];
145 	struct psb_intel_framebuffer *fbdev_fb;
146 	/* a mode_set for fbdev users on this crtc */
147 	struct drm_mode_set mode_set;
148 
149 	/* GEM object that holds our cursor */
150 	struct drm_gem_object *cursor_obj;
151 
152 	struct drm_display_mode saved_mode;
153 	struct drm_display_mode saved_adjusted_mode;
154 
155 	struct psb_intel_mode_device *mode_dev;
156 
157 	/*crtc mode setting flags*/
158 	u32 mode_flags;
159 
160 	bool active;
161 
162 	/* Saved Crtc HW states */
163 	struct psb_intel_crtc_state *crtc_state;
164 
165 	const struct gma_clock_funcs *clock_funcs;
166 
167 	struct drm_pending_vblank_event *page_flip_event;
168 };
169 
170 #define to_gma_crtc(x)	\
171 		container_of(x, struct gma_crtc, base)
172 #define to_gma_connector(x) \
173 		container_of(x, struct gma_connector, base)
174 #define to_gma_encoder(x)	\
175 		container_of(x, struct gma_encoder, base)
176 #define to_psb_intel_framebuffer(x)	\
177 		container_of(x, struct psb_intel_framebuffer, base)
178 
179 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
180 					const u32 reg, const char *name);
181 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
182 int psb_intel_ddc_get_modes(struct drm_connector *connector,
183 			    struct i2c_adapter *adapter);
184 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
185 
186 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
187 			    struct psb_intel_mode_device *mode_dev);
188 extern void psb_intel_crt_init(struct drm_device *dev);
189 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
190 extern void psb_intel_dvo_init(struct drm_device *dev);
191 extern void psb_intel_tv_init(struct drm_device *dev);
192 extern void psb_intel_lvds_init(struct drm_device *dev,
193 			    struct psb_intel_mode_device *mode_dev);
194 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
195 extern void oaktrail_lvds_init(struct drm_device *dev,
196 			   struct psb_intel_mode_device *mode_dev);
197 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
198 extern void oaktrail_dsi_init(struct drm_device *dev,
199 			   struct psb_intel_mode_device *mode_dev);
200 extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
201 extern void mid_dsi_init(struct drm_device *dev,
202 		    struct psb_intel_mode_device *mode_dev, int dsi_num);
203 
204 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
205 extern void gma_connector_attach_encoder(struct gma_connector *connector,
206 					 struct gma_encoder *encoder);
207 
208 static inline struct gma_encoder *gma_attached_encoder(
209 						struct drm_connector *connector)
210 {
211 	return to_gma_connector(connector)->encoder;
212 }
213 
214 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
215 						    struct drm_crtc *crtc);
216 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
217 						 int pipe);
218 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
219 					     int sdvoB);
220 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
221 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
222 				   int enable);
223 extern int intelfb_probe(struct drm_device *dev);
224 extern int intelfb_remove(struct drm_device *dev,
225 			  struct drm_framebuffer *fb);
226 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
227 				      const struct drm_display_mode *mode,
228 				      struct drm_display_mode *adjusted_mode);
229 extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
230 				     struct drm_display_mode *mode);
231 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
232 					struct drm_property *property,
233 					uint64_t value);
234 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
235 
236 /* intel_gmbus.c */
237 extern void gma_intel_i2c_reset(struct drm_device *dev);
238 extern int gma_intel_setup_gmbus(struct drm_device *dev);
239 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
240 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
241 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
242 
243 /* DP support */
244 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
245 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
246 					struct drm_display_mode *mode,
247 					struct drm_display_mode *adjusted_mode);
248 
249 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
250 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
251 
252 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
253 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
254 extern void cdv_sb_reset(struct drm_device *dev);
255 
256 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
257 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
258 
259 #endif				/* __INTEL_DRV_H__ */
260