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 #include "gma_display.h"
28
29 /*
30 * Display related stuff
31 */
32
33 /* maximum connectors per crtcs in the mode set */
34 #define INTELFB_CONN_LIMIT 4
35
36 /* Intel Pipe Clone Bit */
37 #define INTEL_HDMIB_CLONE_BIT 1
38 #define INTEL_HDMIC_CLONE_BIT 2
39 #define INTEL_HDMID_CLONE_BIT 3
40 #define INTEL_HDMIE_CLONE_BIT 4
41 #define INTEL_HDMIF_CLONE_BIT 5
42 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
43 #define INTEL_SDVO_TV_CLONE_BIT 7
44 #define INTEL_SDVO_LVDS_CLONE_BIT 8
45 #define INTEL_ANALOG_CLONE_BIT 9
46 #define INTEL_TV_CLONE_BIT 10
47 #define INTEL_DP_B_CLONE_BIT 11
48 #define INTEL_DP_C_CLONE_BIT 12
49 #define INTEL_DP_D_CLONE_BIT 13
50 #define INTEL_LVDS_CLONE_BIT 14
51 #define INTEL_DVO_TMDS_CLONE_BIT 15
52 #define INTEL_DVO_LVDS_CLONE_BIT 16
53 #define INTEL_EDP_CLONE_BIT 17
54
55 /* these are outputs from the chip - integrated only
56 * external chips are via DVO or SDVO output */
57 #define INTEL_OUTPUT_UNUSED 0
58 #define INTEL_OUTPUT_ANALOG 1
59 #define INTEL_OUTPUT_DVO 2
60 #define INTEL_OUTPUT_SDVO 3
61 #define INTEL_OUTPUT_LVDS 4
62 #define INTEL_OUTPUT_TVOUT 5
63 #define INTEL_OUTPUT_HDMI 6
64 #define INTEL_OUTPUT_MIPI 7
65 #define INTEL_OUTPUT_MIPI2 8
66 #define INTEL_OUTPUT_DISPLAYPORT 9
67 #define INTEL_OUTPUT_EDP 10
68
69 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
70 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
71
72 static inline void
psb_intel_mode_set_pixel_multiplier(struct drm_display_mode * mode,int multiplier)73 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
74 int multiplier)
75 {
76 mode->clock *= multiplier;
77 mode->private_flags |= multiplier;
78 }
79
80 static inline int
psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode * mode)81 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
82 {
83 return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
84 >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
85 }
86
87
88 /*
89 * Hold information useally put on the device driver privates here,
90 * since it needs to be shared across multiple of devices drivers privates.
91 */
92 struct psb_intel_mode_device {
93
94 /*
95 * Abstracted memory manager operations
96 */
97 size_t(*bo_offset) (struct drm_device *dev, void *bo);
98
99 /*
100 * LVDS info
101 */
102 int backlight_duty_cycle; /* restore backlight to this value */
103 bool panel_wants_dither;
104 struct drm_display_mode *panel_fixed_mode;
105 struct drm_display_mode *panel_fixed_mode2;
106 struct drm_display_mode *vbt_mode; /* if any */
107
108 uint32_t saveBLC_PWM_CTL;
109 };
110
111 struct psb_intel_i2c_chan {
112 /* for getting at dev. private (mmio etc.) */
113 struct drm_device *drm_dev;
114 u32 reg; /* GPIO reg */
115 struct i2c_adapter adapter;
116 struct i2c_algo_bit_data algo;
117 u8 slave_addr;
118 };
119
120 struct gma_encoder {
121 struct drm_encoder base;
122 int type;
123 bool needs_tv_clock;
124 void (*hot_plug)(struct gma_encoder *);
125 int crtc_mask;
126 int clone_mask;
127 u32 ddi_select; /* Channel info */
128 #define DDI0_SELECT 0x01
129 #define DDI1_SELECT 0x02
130 #define DP_MASK 0x8000
131 #define DDI_MASK 0x03
132 void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
133
134 /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
135 own set of output privates */
136 struct psb_intel_i2c_chan *i2c_bus;
137 struct psb_intel_i2c_chan *ddc_bus;
138 };
139
140 struct gma_connector {
141 struct drm_connector base;
142 struct gma_encoder *encoder;
143 };
144
145 struct psb_intel_crtc_state {
146 uint32_t saveDSPCNTR;
147 uint32_t savePIPECONF;
148 uint32_t savePIPESRC;
149 uint32_t saveDPLL;
150 uint32_t saveFP0;
151 uint32_t saveFP1;
152 uint32_t saveHTOTAL;
153 uint32_t saveHBLANK;
154 uint32_t saveHSYNC;
155 uint32_t saveVTOTAL;
156 uint32_t saveVBLANK;
157 uint32_t saveVSYNC;
158 uint32_t saveDSPSTRIDE;
159 uint32_t saveDSPSIZE;
160 uint32_t saveDSPPOS;
161 uint32_t saveDSPBASE;
162 uint32_t savePalette[256];
163 };
164
165 struct gma_crtc {
166 struct drm_crtc base;
167 int pipe;
168 int plane;
169 uint32_t cursor_addr;
170 struct gtt_range *cursor_gt;
171 u8 lut_r[256], lut_g[256], lut_b[256];
172 u8 lut_adj[256];
173 struct psb_intel_framebuffer *fbdev_fb;
174 /* a mode_set for fbdev users on this crtc */
175 struct drm_mode_set mode_set;
176
177 /* GEM object that holds our cursor */
178 struct drm_gem_object *cursor_obj;
179
180 struct drm_display_mode saved_mode;
181 struct drm_display_mode saved_adjusted_mode;
182
183 struct psb_intel_mode_device *mode_dev;
184
185 /*crtc mode setting flags*/
186 u32 mode_flags;
187
188 bool active;
189
190 /* Saved Crtc HW states */
191 struct psb_intel_crtc_state *crtc_state;
192
193 const struct gma_clock_funcs *clock_funcs;
194 };
195
196 #define to_gma_crtc(x) \
197 container_of(x, struct gma_crtc, base)
198 #define to_gma_connector(x) \
199 container_of(x, struct gma_connector, base)
200 #define to_gma_encoder(x) \
201 container_of(x, struct gma_encoder, base)
202 #define to_psb_intel_framebuffer(x) \
203 container_of(x, struct psb_intel_framebuffer, base)
204
205 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
206 const u32 reg, const char *name);
207 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
208 int psb_intel_ddc_get_modes(struct drm_connector *connector,
209 struct i2c_adapter *adapter);
210 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
211
212 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
213 struct psb_intel_mode_device *mode_dev);
214 extern void psb_intel_crt_init(struct drm_device *dev);
215 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
216 extern void psb_intel_dvo_init(struct drm_device *dev);
217 extern void psb_intel_tv_init(struct drm_device *dev);
218 extern void psb_intel_lvds_init(struct drm_device *dev,
219 struct psb_intel_mode_device *mode_dev);
220 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
221 extern void oaktrail_lvds_init(struct drm_device *dev,
222 struct psb_intel_mode_device *mode_dev);
223 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
224 extern void oaktrail_dsi_init(struct drm_device *dev,
225 struct psb_intel_mode_device *mode_dev);
226 extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
227 extern void mid_dsi_init(struct drm_device *dev,
228 struct psb_intel_mode_device *mode_dev, int dsi_num);
229
230 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
231 extern void gma_connector_attach_encoder(struct gma_connector *connector,
232 struct gma_encoder *encoder);
233
gma_attached_encoder(struct drm_connector * connector)234 static inline struct gma_encoder *gma_attached_encoder(
235 struct drm_connector *connector)
236 {
237 return to_gma_connector(connector)->encoder;
238 }
239
240 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
241 struct drm_crtc *crtc);
242 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
243 int pipe);
244 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
245 int sdvoB);
246 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
247 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
248 int enable);
249 extern int intelfb_probe(struct drm_device *dev);
250 extern int intelfb_remove(struct drm_device *dev,
251 struct drm_framebuffer *fb);
252 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
253 const struct drm_display_mode *mode,
254 struct drm_display_mode *adjusted_mode);
255 extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
256 struct drm_display_mode *mode);
257 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
258 struct drm_property *property,
259 uint64_t value);
260 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
261 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
262
263 /* intel_gmbus.c */
264 extern void gma_intel_i2c_reset(struct drm_device *dev);
265 extern int gma_intel_setup_gmbus(struct drm_device *dev);
266 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
267 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
268 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
269
270 /* DP support */
271 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
272 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
273 struct drm_display_mode *mode,
274 struct drm_display_mode *adjusted_mode);
275
276 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
277 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
278
279 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
280 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
281 extern void cdv_sb_reset(struct drm_device *dev);
282
283 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
284 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
285
286 #endif /* __INTEL_DRV_H__ */
287