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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 "cdv_device.h"
38#include <linux/pm_runtime.h>
39
40
41#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
42#define HDMI_BORDER_ENABLE (1 << 7)
43#define HDMI_AUDIO_ENABLE (1 << 6)
44#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
45#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
46
47#define HDMIB_PIPE_B_SELECT (1 << 30)
48
49
50struct mid_intel_hdmi_priv {
51 u32 hdmi_reg;
52 u32 save_HDMIB;
53 bool has_hdmi_sink;
54 bool has_hdmi_audio;
55
56 bool hdmi_device_connected;
57 struct mdfld_hdmi_i2c *i2c_bus;
58 struct i2c_adapter *hdmi_i2c_adapter;
59 struct drm_device *dev;
60};
61
62static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
63 struct drm_display_mode *mode,
64 struct drm_display_mode *adjusted_mode)
65{
66 struct drm_device *dev = encoder->dev;
67 struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
68 struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
69 u32 hdmib;
70 struct drm_crtc *crtc = encoder->crtc;
71 struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
72
73 hdmib = (2 << 10);
74
75 if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
76 hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
77 if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
78 hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
79
80 if (gma_crtc->pipe == 1)
81 hdmib |= HDMIB_PIPE_B_SELECT;
82
83 if (hdmi_priv->has_hdmi_audio) {
84 hdmib |= HDMI_AUDIO_ENABLE;
85 hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
86 }
87
88 REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
89 REG_READ(hdmi_priv->hdmi_reg);
90}
91
92static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
93 const struct drm_display_mode *mode,
94 struct drm_display_mode *adjusted_mode)
95{
96 return true;
97}
98
99static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
100{
101 struct drm_device *dev = encoder->dev;
102 struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
103 struct mid_intel_hdmi_priv *hdmi_priv = gma_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 gma_encoder *gma_encoder = gma_attached_encoder(connector);
119 struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
120
121 hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
122}
123
124static void cdv_hdmi_restore(struct drm_connector *connector)
125{
126 struct drm_device *dev = connector->dev;
127 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
128 struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
129
130 REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
131 REG_READ(hdmi_priv->hdmi_reg);
132}
133
134static enum drm_connector_status cdv_hdmi_detect(
135 struct drm_connector *connector, bool force)
136{
137 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
138 struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
139 struct edid *edid = NULL;
140 enum drm_connector_status status = connector_status_disconnected;
141
142 edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
143
144 hdmi_priv->has_hdmi_sink = false;
145 hdmi_priv->has_hdmi_audio = false;
146 if (edid) {
147 if (edid->input & DRM_EDID_INPUT_DIGITAL) {
148 status = connector_status_connected;
149 hdmi_priv->has_hdmi_sink =
150 drm_detect_hdmi_monitor(edid);
151 hdmi_priv->has_hdmi_audio =
152 drm_detect_monitor_audio(edid);
153 }
154 kfree(edid);
155 }
156 return status;
157}
158
159static int cdv_hdmi_set_property(struct drm_connector *connector,
160 struct drm_property *property,
161 uint64_t value)
162{
163 struct drm_encoder *encoder = connector->encoder;
164
165 if (!strcmp(property->name, "scaling mode") && encoder) {
166 struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
167 bool centre;
168 uint64_t curValue;
169
170 if (!crtc)
171 return -1;
172
173 switch (value) {
174 case DRM_MODE_SCALE_FULLSCREEN:
175 break;
176 case DRM_MODE_SCALE_NO_SCALE:
177 break;
178 case DRM_MODE_SCALE_ASPECT:
179 break;
180 default:
181 return -1;
182 }
183
184 if (drm_object_property_get_value(&connector->base,
185 property, &curValue))
186 return -1;
187
188 if (curValue == value)
189 return 0;
190
191 if (drm_object_property_set_value(&connector->base,
192 property, value))
193 return -1;
194
195 centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
196 (value == DRM_MODE_SCALE_NO_SCALE);
197
198 if (crtc->saved_mode.hdisplay != 0 &&
199 crtc->saved_mode.vdisplay != 0) {
200 if (centre) {
201 if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
202 encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
203 return -1;
204 } else {
205 struct drm_encoder_helper_funcs *helpers
206 = encoder->helper_private;
207 helpers->mode_set(encoder, &crtc->saved_mode,
208 &crtc->saved_adjusted_mode);
209 }
210 }
211 }
212 return 0;
213}
214
215
216
217
218static int cdv_hdmi_get_modes(struct drm_connector *connector)
219{
220 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
221 struct edid *edid = NULL;
222 int ret = 0;
223
224 edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
225 if (edid) {
226 drm_mode_connector_update_edid_property(connector, edid);
227 ret = drm_add_edid_modes(connector, edid);
228 kfree(edid);
229 }
230 return ret;
231}
232
233static int cdv_hdmi_mode_valid(struct drm_connector *connector,
234 struct drm_display_mode *mode)
235{
236 if (mode->clock > 165000)
237 return MODE_CLOCK_HIGH;
238 if (mode->clock < 20000)
239 return MODE_CLOCK_HIGH;
240
241
242 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
243 return MODE_NO_DBLESCAN;
244
245
246 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
247 return MODE_NO_INTERLACE;
248
249 return MODE_OK;
250}
251
252static void cdv_hdmi_destroy(struct drm_connector *connector)
253{
254 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
255
256 if (gma_encoder->i2c_bus)
257 psb_intel_i2c_destroy(gma_encoder->i2c_bus);
258 drm_sysfs_connector_remove(connector);
259 drm_connector_cleanup(connector);
260 kfree(connector);
261}
262
263static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
264 .dpms = cdv_hdmi_dpms,
265 .mode_fixup = cdv_hdmi_mode_fixup,
266 .prepare = gma_encoder_prepare,
267 .mode_set = cdv_hdmi_mode_set,
268 .commit = gma_encoder_commit,
269};
270
271static const struct drm_connector_helper_funcs
272 cdv_hdmi_connector_helper_funcs = {
273 .get_modes = cdv_hdmi_get_modes,
274 .mode_valid = cdv_hdmi_mode_valid,
275 .best_encoder = gma_best_encoder,
276};
277
278static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
279 .dpms = drm_helper_connector_dpms,
280 .save = cdv_hdmi_save,
281 .restore = cdv_hdmi_restore,
282 .detect = cdv_hdmi_detect,
283 .fill_modes = drm_helper_probe_single_connector_modes,
284 .set_property = cdv_hdmi_set_property,
285 .destroy = cdv_hdmi_destroy,
286};
287
288void cdv_hdmi_init(struct drm_device *dev,
289 struct psb_intel_mode_device *mode_dev, int reg)
290{
291 struct gma_encoder *gma_encoder;
292 struct gma_connector *gma_connector;
293 struct drm_connector *connector;
294 struct drm_encoder *encoder;
295 struct mid_intel_hdmi_priv *hdmi_priv;
296 int ddc_bus;
297
298 gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL);
299
300 if (!gma_encoder)
301 return;
302
303 gma_connector = kzalloc(sizeof(struct gma_connector),
304 GFP_KERNEL);
305
306 if (!gma_connector)
307 goto err_connector;
308
309 hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
310
311 if (!hdmi_priv)
312 goto err_priv;
313
314 connector = &gma_connector->base;
315 connector->polled = DRM_CONNECTOR_POLL_HPD;
316 encoder = &gma_encoder->base;
317 drm_connector_init(dev, connector,
318 &cdv_hdmi_connector_funcs,
319 DRM_MODE_CONNECTOR_DVID);
320
321 drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
322 DRM_MODE_ENCODER_TMDS);
323
324 gma_connector_attach_encoder(gma_connector, gma_encoder);
325 gma_encoder->type = INTEL_OUTPUT_HDMI;
326 hdmi_priv->hdmi_reg = reg;
327 hdmi_priv->has_hdmi_sink = false;
328 gma_encoder->dev_priv = hdmi_priv;
329
330 drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
331 drm_connector_helper_add(connector,
332 &cdv_hdmi_connector_helper_funcs);
333 connector->display_info.subpixel_order = SubPixelHorizontalRGB;
334 connector->interlace_allowed = false;
335 connector->doublescan_allowed = false;
336
337 drm_object_attach_property(&connector->base,
338 dev->mode_config.scaling_mode_property,
339 DRM_MODE_SCALE_FULLSCREEN);
340
341 switch (reg) {
342 case SDVOB:
343 ddc_bus = GPIOE;
344 gma_encoder->ddi_select = DDI0_SELECT;
345 break;
346 case SDVOC:
347 ddc_bus = GPIOD;
348 gma_encoder->ddi_select = DDI1_SELECT;
349 break;
350 default:
351 DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
352 goto failed_ddc;
353 break;
354 }
355
356 gma_encoder->i2c_bus = psb_intel_i2c_create(dev,
357 ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
358
359 if (!gma_encoder->i2c_bus) {
360 dev_err(dev->dev, "No ddc adapter available!\n");
361 goto failed_ddc;
362 }
363
364 hdmi_priv->hdmi_i2c_adapter = &(gma_encoder->i2c_bus->adapter);
365 hdmi_priv->dev = dev;
366 drm_sysfs_connector_add(connector);
367 return;
368
369failed_ddc:
370 drm_encoder_cleanup(encoder);
371 drm_connector_cleanup(connector);
372err_priv:
373 kfree(gma_connector);
374err_connector:
375 kfree(gma_encoder);
376}
377
