2 * Copyright © 2006-2011 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * jim liu <jim.liu@intel.com>
27 * We should probably make this generic and share it with Medfield
32 #include <drm/drm_crtc.h>
33 #include <drm/drm_edid.h>
34 #include "psb_intel_drv.h"
36 #include "psb_intel_reg.h"
37 #include <linux/pm_runtime.h>
39 /* hdmi control bits */
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 /* hdmi-b control bits */
46 #define HDMIB_PIPE_B_SELECT (1 << 30)
49 struct mid_intel_hdmi_priv {
54 /* Should set this when detect hotplug */
55 bool hdmi_device_connected;
56 struct mdfld_hdmi_i2c *i2c_bus;
57 struct i2c_adapter *hdmi_i2c_adapter; /* for control functions */
58 struct drm_device *dev;
61 static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
62 struct drm_display_mode *mode,
63 struct drm_display_mode *adjusted_mode)
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;
69 struct drm_crtc *crtc = encoder->crtc;
70 struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
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;
79 if (intel_crtc->pipe == 1)
80 hdmib |= HDMIB_PIPE_B_SELECT;
82 if (hdmi_priv->has_hdmi_audio) {
83 hdmib |= HDMI_AUDIO_ENABLE;
84 hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
87 REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
88 REG_READ(hdmi_priv->hdmi_reg);
91 static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
92 struct drm_display_mode *mode,
93 struct drm_display_mode *adjusted_mode)
98 static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
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;
106 hdmib = REG_READ(hdmi_priv->hdmi_reg);
108 if (mode != DRM_MODE_DPMS_ON)
109 REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
111 REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
112 REG_READ(hdmi_priv->hdmi_reg);
115 static void cdv_hdmi_save(struct drm_connector *connector)
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;
122 hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
125 static void cdv_hdmi_restore(struct drm_connector *connector)
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;
132 REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
133 REG_READ(hdmi_priv->hdmi_reg);
136 static enum drm_connector_status cdv_hdmi_detect(
137 struct drm_connector *connector, bool force)
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;
147 edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
149 hdmi_priv->has_hdmi_sink = false;
150 hdmi_priv->has_hdmi_audio = false;
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);
160 psb_intel_connector->base.display_info.raw_edid = NULL;
166 static int cdv_hdmi_set_property(struct drm_connector *connector,
167 struct drm_property *property,
170 struct drm_encoder *encoder = connector->encoder;
172 if (!strcmp(property->name, "scaling mode") && encoder) {
173 struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);
181 case DRM_MODE_SCALE_FULLSCREEN:
183 case DRM_MODE_SCALE_NO_SCALE:
185 case DRM_MODE_SCALE_ASPECT:
191 if (drm_connector_property_get_value(connector,
192 property, &curValue))
195 if (curValue == value)
198 if (drm_connector_property_set_value(connector,
202 centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
203 (value == DRM_MODE_SCALE_NO_SCALE);
205 if (crtc->saved_mode.hdisplay != 0 &&
206 crtc->saved_mode.vdisplay != 0) {
208 if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
209 encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
212 struct drm_encoder_helper_funcs *helpers
213 = encoder->helper_private;
214 helpers->mode_set(encoder, &crtc->saved_mode,
215 &crtc->saved_adjusted_mode);
223 * Return the list of HDMI DDC modes if available.
225 static int cdv_hdmi_get_modes(struct drm_connector *connector)
227 struct psb_intel_encoder *psb_intel_encoder =
228 psb_intel_attached_encoder(connector);
229 struct edid *edid = NULL;
232 edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
234 drm_mode_connector_update_edid_property(connector, edid);
235 ret = drm_add_edid_modes(connector, edid);
241 static int cdv_hdmi_mode_valid(struct drm_connector *connector,
242 struct drm_display_mode *mode)
244 struct drm_psb_private *dev_priv = connector->dev->dev_private;
246 if (mode->clock > 165000)
247 return MODE_CLOCK_HIGH;
248 if (mode->clock < 20000)
249 return MODE_CLOCK_HIGH;
252 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
253 return MODE_NO_DBLESCAN;
256 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
257 return MODE_NO_INTERLACE;
259 /* We assume worst case scenario of 32 bpp here, since we don't know */
260 if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
261 dev_priv->vram_stolen_size)
267 static void cdv_hdmi_destroy(struct drm_connector *connector)
269 struct psb_intel_encoder *psb_intel_encoder =
270 psb_intel_attached_encoder(connector);
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);
279 static 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,
287 static 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,
294 static 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,
304 void cdv_hdmi_init(struct drm_device *dev,
305 struct psb_intel_mode_device *mode_dev, int reg)
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;
314 psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder),
317 if (!psb_intel_encoder)
320 psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector),
323 if (!psb_intel_connector)
326 hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
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);
337 drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
338 DRM_MODE_ENCODER_TMDS);
340 psb_intel_connector_attach_encoder(psb_intel_connector,
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;
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;
354 drm_connector_attach_property(connector,
355 dev->mode_config.scaling_mode_property,
356 DRM_MODE_SCALE_FULLSCREEN);
366 DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
371 psb_intel_encoder->i2c_bus = psb_intel_i2c_create(dev,
372 ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
374 if (!psb_intel_encoder->i2c_bus) {
375 dev_err(dev->dev, "No ddc adapter available!\n");
379 hdmi_priv->hdmi_i2c_adapter =
380 &(psb_intel_encoder->i2c_bus->adapter);
381 hdmi_priv->dev = dev;
382 drm_sysfs_connector_add(connector);
386 drm_encoder_cleanup(encoder);
387 drm_connector_cleanup(connector);
389 kfree(psb_intel_connector);
391 kfree(psb_intel_encoder);