1 /*
2 * Copyright (c) 2009-2011, Intel Corporation.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 *
17 */
18
19 #ifndef __INTEL_DRV_H__
20 #define __INTEL_DRV_H__
21
22 #include <linux/i2c.h>
23 #include <linux/i2c-algo-bit.h>
24 #include <drm/drm_crtc.h>
25 #include <drm/drm_crtc_helper.h>
26 #include <linux/gpio.h>
27
28 /*
29 * Display related stuff
30 */
31
32 /* store information about an Ixxx DVO */
33 /* The i830->i865 use multiple DVOs with multiple i2cs */
34 /* the i915, i945 have a single sDVO i2c bus - which is different */
35 #define MAX_OUTPUTS 6
36 /* maximum connectors per crtcs in the mode set */
37 #define INTELFB_CONN_LIMIT 4
38
39 #define INTEL_I2C_BUS_DVO 1
40 #define INTEL_I2C_BUS_SDVO 2
41
42 /* Intel Pipe Clone Bit */
43 #define INTEL_HDMIB_CLONE_BIT 1
44 #define INTEL_HDMIC_CLONE_BIT 2
45 #define INTEL_HDMID_CLONE_BIT 3
46 #define INTEL_HDMIE_CLONE_BIT 4
47 #define INTEL_HDMIF_CLONE_BIT 5
48 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
49 #define INTEL_SDVO_TV_CLONE_BIT 7
50 #define INTEL_SDVO_LVDS_CLONE_BIT 8
51 #define INTEL_ANALOG_CLONE_BIT 9
52 #define INTEL_TV_CLONE_BIT 10
53 #define INTEL_DP_B_CLONE_BIT 11
54 #define INTEL_DP_C_CLONE_BIT 12
55 #define INTEL_DP_D_CLONE_BIT 13
56 #define INTEL_LVDS_CLONE_BIT 14
57 #define INTEL_DVO_TMDS_CLONE_BIT 15
58 #define INTEL_DVO_LVDS_CLONE_BIT 16
59 #define INTEL_EDP_CLONE_BIT 17
60
61 /* these are outputs from the chip - integrated only
62 * external chips are via DVO or SDVO output */
63 #define INTEL_OUTPUT_UNUSED 0
64 #define INTEL_OUTPUT_ANALOG 1
65 #define INTEL_OUTPUT_DVO 2
66 #define INTEL_OUTPUT_SDVO 3
67 #define INTEL_OUTPUT_LVDS 4
68 #define INTEL_OUTPUT_TVOUT 5
69 #define INTEL_OUTPUT_HDMI 6
70 #define INTEL_OUTPUT_MIPI 7
71 #define INTEL_OUTPUT_MIPI2 8
72
73 #define INTEL_DVO_CHIP_NONE 0
74 #define INTEL_DVO_CHIP_LVDS 1
75 #define INTEL_DVO_CHIP_TMDS 2
76 #define INTEL_DVO_CHIP_TVOUT 4
77
78 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
79 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
80
81 static inline void
psb_intel_mode_set_pixel_multiplier(struct drm_display_mode * mode,int multiplier)82 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
83 int multiplier)
84 {
85 mode->clock *= multiplier;
86 mode->private_flags |= multiplier;
87 }
88
89 static inline int
psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode * mode)90 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
91 {
92 return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
93 >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
94 }
95
96
97 /*
98 * Hold information useally put on the device driver privates here,
99 * since it needs to be shared across multiple of devices drivers privates.
100 */
101 struct psb_intel_mode_device {
102
103 /*
104 * Abstracted memory manager operations
105 */
106 size_t(*bo_offset) (struct drm_device *dev, void *bo);
107
108 /*
109 * Cursor (Can go ?)
110 */
111 int cursor_needs_physical;
112
113 /*
114 * LVDS info
115 */
116 int backlight_duty_cycle; /* restore backlight to this value */
117 bool panel_wants_dither;
118 struct drm_display_mode *panel_fixed_mode;
119 struct drm_display_mode *panel_fixed_mode2;
120 struct drm_display_mode *vbt_mode; /* if any */
121
122 uint32_t saveBLC_PWM_CTL;
123 };
124
125 struct psb_intel_i2c_chan {
126 /* for getting at dev. private (mmio etc.) */
127 struct drm_device *drm_dev;
128 u32 reg; /* GPIO reg */
129 struct i2c_adapter adapter;
130 struct i2c_algo_bit_data algo;
131 u8 slave_addr;
132 };
133
134 struct psb_intel_encoder {
135 struct drm_encoder base;
136 int type;
137 bool needs_tv_clock;
138 void (*hot_plug)(struct psb_intel_encoder *);
139 int crtc_mask;
140 int clone_mask;
141 void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
142
143 /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
144 own set of output privates */
145 struct psb_intel_i2c_chan *i2c_bus;
146 struct psb_intel_i2c_chan *ddc_bus;
147 };
148
149 struct psb_intel_connector {
150 struct drm_connector base;
151 struct psb_intel_encoder *encoder;
152 };
153
154 struct psb_intel_crtc_state {
155 uint32_t saveDSPCNTR;
156 uint32_t savePIPECONF;
157 uint32_t savePIPESRC;
158 uint32_t saveDPLL;
159 uint32_t saveFP0;
160 uint32_t saveFP1;
161 uint32_t saveHTOTAL;
162 uint32_t saveHBLANK;
163 uint32_t saveHSYNC;
164 uint32_t saveVTOTAL;
165 uint32_t saveVBLANK;
166 uint32_t saveVSYNC;
167 uint32_t saveDSPSTRIDE;
168 uint32_t saveDSPSIZE;
169 uint32_t saveDSPPOS;
170 uint32_t saveDSPBASE;
171 uint32_t savePalette[256];
172 };
173
174 struct psb_intel_crtc {
175 struct drm_crtc base;
176 int pipe;
177 int plane;
178 uint32_t cursor_addr;
179 u8 lut_r[256], lut_g[256], lut_b[256];
180 u8 lut_adj[256];
181 struct psb_intel_framebuffer *fbdev_fb;
182 /* a mode_set for fbdev users on this crtc */
183 struct drm_mode_set mode_set;
184
185 /* GEM object that holds our cursor */
186 struct drm_gem_object *cursor_obj;
187
188 struct drm_display_mode saved_mode;
189 struct drm_display_mode saved_adjusted_mode;
190
191 struct psb_intel_mode_device *mode_dev;
192
193 /*crtc mode setting flags*/
194 u32 mode_flags;
195
196 /* Saved Crtc HW states */
197 struct psb_intel_crtc_state *crtc_state;
198 };
199
200 #define to_psb_intel_crtc(x) \
201 container_of(x, struct psb_intel_crtc, base)
202 #define to_psb_intel_connector(x) \
203 container_of(x, struct psb_intel_connector, base)
204 #define to_psb_intel_encoder(x) \
205 container_of(x, struct psb_intel_encoder, base)
206 #define to_psb_intel_framebuffer(x) \
207 container_of(x, struct psb_intel_framebuffer, base)
208
209 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
210 const u32 reg, const char *name);
211 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
212 int psb_intel_ddc_get_modes(struct drm_connector *connector,
213 struct i2c_adapter *adapter);
214 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
215
216 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
217 struct psb_intel_mode_device *mode_dev);
218 extern void psb_intel_crt_init(struct drm_device *dev);
219 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
220 extern void psb_intel_dvo_init(struct drm_device *dev);
221 extern void psb_intel_tv_init(struct drm_device *dev);
222 extern void psb_intel_lvds_init(struct drm_device *dev,
223 struct psb_intel_mode_device *mode_dev);
224 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
225 extern void oaktrail_lvds_init(struct drm_device *dev,
226 struct psb_intel_mode_device *mode_dev);
227 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
228 extern void oaktrail_dsi_init(struct drm_device *dev,
229 struct psb_intel_mode_device *mode_dev);
230 extern void mid_dsi_init(struct drm_device *dev,
231 struct psb_intel_mode_device *mode_dev, int dsi_num);
232
233 extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
234 extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
235 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
236 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
237
psb_intel_attached_encoder(struct drm_connector * connector)238 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
239 struct drm_connector *connector)
240 {
241 return to_psb_intel_connector(connector)->encoder;
242 }
243
244 extern void psb_intel_connector_attach_encoder(
245 struct psb_intel_connector *connector,
246 struct psb_intel_encoder *encoder);
247
248 extern struct drm_encoder *psb_intel_best_encoder(struct drm_connector
249 *connector);
250
251 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
252 struct drm_crtc *crtc);
253 extern void psb_intel_wait_for_vblank(struct drm_device *dev);
254 extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
255 struct drm_file *file_priv);
256 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
257 int pipe);
258 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
259 int sdvoB);
260 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
261 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
262 int enable);
263 extern int intelfb_probe(struct drm_device *dev);
264 extern int intelfb_remove(struct drm_device *dev,
265 struct drm_framebuffer *fb);
266 extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
267 *dev, struct
268 drm_mode_fb_cmd
269 *mode_cmd,
270 void *mm_private);
271 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
272 struct drm_display_mode *mode,
273 struct drm_display_mode *adjusted_mode);
274 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
275 struct drm_display_mode *mode);
276 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
277 struct drm_property *property,
278 uint64_t value);
279 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
280 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
281
282 /* intel_gmbus.c */
283 extern void gma_intel_i2c_reset(struct drm_device *dev);
284 extern int gma_intel_setup_gmbus(struct drm_device *dev);
285 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
286 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
287 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
288
289 #endif /* __INTEL_DRV_H__ */
290