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30#include <drm/drmP.h>
31#include <drm/drm.h>
32#include <drm/drm_crtc.h>
33#include <drm/drm_edid.h>
34#include "psb_intel_drv.h"
35#include "psb_drv.h"
36#include "psb_intel_reg.h"
37#include <linux/pm_runtime.h>
38
39
40#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
41#define HDMI_BORDER_ENABLE (1 << 7)
42#define HDMI_AUDIO_ENABLE (1 << 6)
43#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
44#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
45
46#define HDMIB_PIPE_B_SELECT (1 << 30)
47
48
49struct mid_intel_hdmi_priv {
50 u32 hdmi_reg;
51 u32 save_HDMIB;
52 bool has_hdmi_sink;
53 bool has_hdmi_audio;
54
55 bool hdmi_device_connected;
56 struct mdfld_hdmi_i2c *i2c_bus;
57 struct i2c_adapter *hdmi_i2c_adapter;
58 struct drm_device *dev;
59};
60
61static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
62 struct drm_display_mode *mode,
63 struct drm_display_mode *adjusted_mode)
64{
65 struct drm_device *dev = encoder->dev;
66 struct psb_intel_encoder *psb_intel_encoder = to_psb_intel_encoder(encoder);
67 struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
68 u32 hdmib;
69 struct drm_crtc *crtc = encoder->crtc;
70 struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
71
72 hdmib = (2 << 10);
73
74 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
75 hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
76 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
77 hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
78
79 if (intel_crtc->pipe == 1)
80 hdmib |= HDMIB_PIPE_B_SELECT;
81
82 if (hdmi_priv->has_hdmi_audio) {
83 hdmib |= HDMI_AUDIO_ENABLE;
84 hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
85 }
86
87 REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
88 REG_READ(hdmi_priv->hdmi_reg);
89}
90
91static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
92 struct drm_display_mode *mode,
93 struct drm_display_mode *adjusted_mode)
94{
95 return true;
96}
97
98static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
99{
100 struct drm_device *dev = encoder->dev;
101 struct psb_intel_encoder *psb_intel_encoder =
102 to_psb_intel_encoder(encoder);
103 struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
104 u32 hdmib;
105
106 hdmib = REG_READ(hdmi_priv->hdmi_reg);
107
108 if (mode != DRM_MODE_DPMS_ON)
109 REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
110 else
111 REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
112 REG_READ(hdmi_priv->hdmi_reg);
113}
114
115static void cdv_hdmi_save(struct drm_connector *connector)
116{
117 struct drm_device *dev = connector->dev;
118 struct psb_intel_encoder *psb_intel_encoder =
119 psb_intel_attached_encoder(connector);
120 struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
121
122 hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
123}
124
125static void cdv_hdmi_restore(struct drm_connector *connector)
126{
127 struct drm_device *dev = connector->dev;
128 struct psb_intel_encoder *psb_intel_encoder =
129 psb_intel_attached_encoder(connector);
130 struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
131
132 REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
133 REG_READ(hdmi_priv->hdmi_reg);
134}
135
136static enum drm_connector_status cdv_hdmi_detect(
137 struct drm_connector *connector, bool force)
138{
139 struct psb_intel_encoder *psb_intel_encoder =
140 psb_intel_attached_encoder(connector);
141 struct psb_intel_connector *psb_intel_connector =
142 to_psb_intel_connector(connector);
143 struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
144 struct edid *edid = NULL;
145 enum drm_connector_status status = connector_status_disconnected;
146
147 edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
148
149 hdmi_priv->has_hdmi_sink = false;
150 hdmi_priv->has_hdmi_audio = false;
151 if (edid) {
152 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
153 status = connector_status_connected;
154 hdmi_priv->has_hdmi_sink =
155 drm_detect_hdmi_monitor(edid);
156 hdmi_priv->has_hdmi_audio =
157 drm_detect_monitor_audio(edid);
158 }
159
160 psb_intel_connector->base.display_info.raw_edid = NULL;
161 kfree(edid);
162 }
163 return status;
164}
165
166static int cdv_hdmi_set_property(struct drm_connector *connector,
167 struct drm_property *property,
168 uint64_t value)
169{
170 struct drm_encoder *encoder = connector->encoder;
171
172 if (!strcmp(property->name, "scaling mode") && encoder) {
173 struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);
174 bool centre;
175 uint64_t curValue;
176
177 if (!crtc)
178 return -1;
179
180 switch (value) {
181 case DRM_MODE_SCALE_FULLSCREEN:
182 break;
183 case DRM_MODE_SCALE_NO_SCALE:
184 break;
185 case DRM_MODE_SCALE_ASPECT:
186 break;
187 default:
188 return -1;
189 }
190
191 if (drm_connector_property_get_value(connector,
192 property, &curValue))
193 return -1;
194
195 if (curValue == value)
196 return 0;
197
198 if (drm_connector_property_set_value(connector,
199 property, value))
200 return -1;
201
202 centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
203 (value == DRM_MODE_SCALE_NO_SCALE);
204
205 if (crtc->saved_mode.hdisplay != 0 &&
206 crtc->saved_mode.vdisplay != 0) {
207 if (centre) {
208 if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
209 encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
210 return -1;
211 } else {
212 struct drm_encoder_helper_funcs *helpers
213 = encoder->helper_private;
214 helpers->mode_set(encoder, &crtc->saved_mode,
215 &crtc->saved_adjusted_mode);
216 }
217 }
218 }
219 return 0;
220}
221
222
223
224
225static int cdv_hdmi_get_modes(struct drm_connector *connector)
226{
227 struct psb_intel_encoder *psb_intel_encoder =
228 psb_intel_attached_encoder(connector);
229 struct edid *edid = NULL;
230 int ret = 0;
231
232 edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
233 if (edid) {
234 drm_mode_connector_update_edid_property(connector, edid);
235 ret = drm_add_edid_modes(connector, edid);
236 kfree(edid);
237 }
238 return ret;
239}
240
241static int cdv_hdmi_mode_valid(struct drm_connector *connector,
242 struct drm_display_mode *mode)
243{
244 struct drm_psb_private *dev_priv = connector->dev->dev_private;
245
246 if (mode->clock > 165000)
247 return MODE_CLOCK_HIGH;
248 if (mode->clock < 20000)
249 return MODE_CLOCK_HIGH;
250
251
252 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
253 return MODE_NO_DBLESCAN;
254
255
256 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
257 return MODE_NO_INTERLACE;
258
259
260 if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
261 dev_priv->vram_stolen_size)
262 return MODE_MEM;
263
264 return MODE_OK;
265}
266
267static void cdv_hdmi_destroy(struct drm_connector *connector)
268{
269 struct psb_intel_encoder *psb_intel_encoder =
270 psb_intel_attached_encoder(connector);
271
272 if (psb_intel_encoder->i2c_bus)
273 psb_intel_i2c_destroy(psb_intel_encoder->i2c_bus);
274 drm_sysfs_connector_remove(connector);
275 drm_connector_cleanup(connector);
276 kfree(connector);
277}
278
279static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
280 .dpms = cdv_hdmi_dpms,
281 .mode_fixup = cdv_hdmi_mode_fixup,
282 .prepare = psb_intel_encoder_prepare,
283 .mode_set = cdv_hdmi_mode_set,
284 .commit = psb_intel_encoder_commit,
285};
286
287static const struct drm_connector_helper_funcs
288 cdv_hdmi_connector_helper_funcs = {
289 .get_modes = cdv_hdmi_get_modes,
290 .mode_valid = cdv_hdmi_mode_valid,
291 .best_encoder = psb_intel_best_encoder,
292};
293
294static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
295 .dpms = drm_helper_connector_dpms,
296 .save = cdv_hdmi_save,
297 .restore = cdv_hdmi_restore,
298 .detect = cdv_hdmi_detect,
299 .fill_modes = drm_helper_probe_single_connector_modes,
300 .set_property = cdv_hdmi_set_property,
301 .destroy = cdv_hdmi_destroy,
302};
303
304void cdv_hdmi_init(struct drm_device *dev,
305 struct psb_intel_mode_device *mode_dev, int reg)
306{
307 struct psb_intel_encoder *psb_intel_encoder;
308 struct psb_intel_connector *psb_intel_connector;
309 struct drm_connector *connector;
310 struct drm_encoder *encoder;
311 struct mid_intel_hdmi_priv *hdmi_priv;
312 int ddc_bus;
313
314 psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder),
315 GFP_KERNEL);
316
317 if (!psb_intel_encoder)
318 return;
319
320 psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector),
321 GFP_KERNEL);
322
323 if (!psb_intel_connector)
324 goto err_connector;
325
326 hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
327
328 if (!hdmi_priv)
329 goto err_priv;
330
331 connector = &psb_intel_connector->base;
332 encoder = &psb_intel_encoder->base;
333 drm_connector_init(dev, connector,
334 &cdv_hdmi_connector_funcs,
335 DRM_MODE_CONNECTOR_DVID);
336
337 drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
338 DRM_MODE_ENCODER_TMDS);
339
340 psb_intel_connector_attach_encoder(psb_intel_connector,
341 psb_intel_encoder);
342 psb_intel_encoder->type = INTEL_OUTPUT_HDMI;
343 hdmi_priv->hdmi_reg = reg;
344 hdmi_priv->has_hdmi_sink = false;
345 psb_intel_encoder->dev_priv = hdmi_priv;
346
347 drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
348 drm_connector_helper_add(connector,
349 &cdv_hdmi_connector_helper_funcs);
350 connector->display_info.subpixel_order = SubPixelHorizontalRGB;
351 connector->interlace_allowed = false;
352 connector->doublescan_allowed = false;
353
354 drm_connector_attach_property(connector,
355 dev->mode_config.scaling_mode_property,
356 DRM_MODE_SCALE_FULLSCREEN);
357
358 switch (reg) {
359 case SDVOB:
360 ddc_bus = GPIOE;
361 break;
362 case SDVOC:
363 ddc_bus = GPIOD;
364 break;
365 default:
366 DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
367 goto failed_ddc;
368 break;
369 }
370
371 psb_intel_encoder->i2c_bus = psb_intel_i2c_create(dev,
372 ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
373
374 if (!psb_intel_encoder->i2c_bus) {
375 dev_err(dev->dev, "No ddc adapter available!\n");
376 goto failed_ddc;
377 }
378
379 hdmi_priv->hdmi_i2c_adapter =
380 &(psb_intel_encoder->i2c_bus->adapter);
381 hdmi_priv->dev = dev;
382 drm_sysfs_connector_add(connector);
383 return;
384
385failed_ddc:
386 drm_encoder_cleanup(encoder);
387 drm_connector_cleanup(connector);
388err_priv:
389 kfree(psb_intel_connector);
390err_connector:
391 kfree(psb_intel_encoder);
392}
393
