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 <linux/gpio.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 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
59 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
60
61 static inline void
psb_intel_mode_set_pixel_multiplier(struct drm_display_mode * mode,int multiplier)62 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
63 int multiplier)
64 {
65 mode->clock *= multiplier;
66 mode->private_flags |= multiplier;
67 }
68
69 static inline int
psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode * mode)70 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
71 {
72 return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
73 >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
74 }
75
76
77 /*
78 * Hold information useally put on the device driver privates here,
79 * since it needs to be shared across multiple of devices drivers privates.
80 */
81 struct psb_intel_mode_device {
82
83 /*
84 * Abstracted memory manager operations
85 */
86 size_t(*bo_offset) (struct drm_device *dev, void *bo);
87
88 /*
89 * LVDS info
90 */
91 int backlight_duty_cycle; /* restore backlight to this value */
92 bool panel_wants_dither;
93 struct drm_display_mode *panel_fixed_mode;
94 struct drm_display_mode *panel_fixed_mode2;
95 struct drm_display_mode *vbt_mode; /* if any */
96
97 uint32_t saveBLC_PWM_CTL;
98 };
99
100 struct psb_intel_i2c_chan {
101 /* for getting at dev. private (mmio etc.) */
102 struct drm_device *drm_dev;
103 u32 reg; /* GPIO reg */
104 struct i2c_adapter adapter;
105 struct i2c_algo_bit_data algo;
106 u8 slave_addr;
107 };
108
109 struct gma_encoder {
110 struct drm_encoder base;
111 int type;
112 bool needs_tv_clock;
113 void (*hot_plug)(struct gma_encoder *);
114 int crtc_mask;
115 int clone_mask;
116 u32 ddi_select; /* Channel info */
117 #define DDI0_SELECT 0x01
118 #define DDI1_SELECT 0x02
119 #define DP_MASK 0x8000
120 #define DDI_MASK 0x03
121 void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
122
123 /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
124 own set of output privates */
125 struct psb_intel_i2c_chan *i2c_bus;
126 struct psb_intel_i2c_chan *ddc_bus;
127 };
128
129 struct gma_connector {
130 struct drm_connector base;
131 struct gma_encoder *encoder;
132
133 void (*save)(struct drm_connector *connector);
134 void (*restore)(struct drm_connector *connector);
135 };
136
137 struct psb_intel_crtc_state {
138 uint32_t saveDSPCNTR;
139 uint32_t savePIPECONF;
140 uint32_t savePIPESRC;
141 uint32_t saveDPLL;
142 uint32_t saveFP0;
143 uint32_t saveFP1;
144 uint32_t saveHTOTAL;
145 uint32_t saveHBLANK;
146 uint32_t saveHSYNC;
147 uint32_t saveVTOTAL;
148 uint32_t saveVBLANK;
149 uint32_t saveVSYNC;
150 uint32_t saveDSPSTRIDE;
151 uint32_t saveDSPSIZE;
152 uint32_t saveDSPPOS;
153 uint32_t saveDSPBASE;
154 uint32_t savePalette[256];
155 };
156
157 struct gma_crtc {
158 struct drm_crtc base;
159 int pipe;
160 int plane;
161 uint32_t cursor_addr;
162 struct gtt_range *cursor_gt;
163 u8 lut_adj[256];
164 struct psb_intel_framebuffer *fbdev_fb;
165 /* a mode_set for fbdev users on this crtc */
166 struct drm_mode_set mode_set;
167
168 /* GEM object that holds our cursor */
169 struct drm_gem_object *cursor_obj;
170
171 struct drm_display_mode saved_mode;
172 struct drm_display_mode saved_adjusted_mode;
173
174 struct psb_intel_mode_device *mode_dev;
175
176 /*crtc mode setting flags*/
177 u32 mode_flags;
178
179 bool active;
180
181 /* Saved Crtc HW states */
182 struct psb_intel_crtc_state *crtc_state;
183
184 const struct gma_clock_funcs *clock_funcs;
185 };
186
187 #define to_gma_crtc(x) \
188 container_of(x, struct gma_crtc, base)
189 #define to_gma_connector(x) \
190 container_of(x, struct gma_connector, base)
191 #define to_gma_encoder(x) \
192 container_of(x, struct gma_encoder, base)
193 #define to_psb_intel_framebuffer(x) \
194 container_of(x, struct psb_intel_framebuffer, base)
195
196 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
197 const u32 reg, const char *name);
198 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
199 int psb_intel_ddc_get_modes(struct drm_connector *connector,
200 struct i2c_adapter *adapter);
201 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
202
203 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
204 struct psb_intel_mode_device *mode_dev);
205 extern void psb_intel_crt_init(struct drm_device *dev);
206 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
207 extern void psb_intel_dvo_init(struct drm_device *dev);
208 extern void psb_intel_tv_init(struct drm_device *dev);
209 extern void psb_intel_lvds_init(struct drm_device *dev,
210 struct psb_intel_mode_device *mode_dev);
211 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
212 extern void oaktrail_lvds_init(struct drm_device *dev,
213 struct psb_intel_mode_device *mode_dev);
214 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
215 extern void oaktrail_dsi_init(struct drm_device *dev,
216 struct psb_intel_mode_device *mode_dev);
217 extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
218 extern void mid_dsi_init(struct drm_device *dev,
219 struct psb_intel_mode_device *mode_dev, int dsi_num);
220
221 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
222 extern void gma_connector_attach_encoder(struct gma_connector *connector,
223 struct gma_encoder *encoder);
224
gma_attached_encoder(struct drm_connector * connector)225 static inline struct gma_encoder *gma_attached_encoder(
226 struct drm_connector *connector)
227 {
228 return to_gma_connector(connector)->encoder;
229 }
230
231 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
232 struct drm_crtc *crtc);
233 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
234 int pipe);
235 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
236 int sdvoB);
237 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
238 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
239 int enable);
240 extern int intelfb_probe(struct drm_device *dev);
241 extern int intelfb_remove(struct drm_device *dev,
242 struct drm_framebuffer *fb);
243 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
244 const struct drm_display_mode *mode,
245 struct drm_display_mode *adjusted_mode);
246 extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
247 struct drm_display_mode *mode);
248 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
249 struct drm_property *property,
250 uint64_t value);
251 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
252 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
253
254 /* intel_gmbus.c */
255 extern void gma_intel_i2c_reset(struct drm_device *dev);
256 extern int gma_intel_setup_gmbus(struct drm_device *dev);
257 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
258 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
259 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
260
261 /* DP support */
262 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
263 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
264 struct drm_display_mode *mode,
265 struct drm_display_mode *adjusted_mode);
266
267 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
268 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
269
270 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
271 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
272 extern void cdv_sb_reset(struct drm_device *dev);
273
274 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
275 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
276
277 #endif /* __INTEL_DRV_H__ */
278