--- /dev/null
+/*
+ * Copyright © 2006-2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * jim liu <jim.liu@intel.com>
+ *
+ * FIXME:
+ * We should probably make this generic and share it with Medfield
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include "psb_intel_drv.h"
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+#include "cdv_device.h"
+#include <linux/pm_runtime.h>
+
+/* hdmi control bits */
+#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
+#define HDMI_BORDER_ENABLE (1 << 7)
+#define HDMI_AUDIO_ENABLE (1 << 6)
+#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
+#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
+/* hdmi-b control bits */
+#define HDMIB_PIPE_B_SELECT (1 << 30)
+
+
+struct mid_intel_hdmi_priv {
+ u32 hdmi_reg;
+ u32 save_HDMIB;
+ bool has_hdmi_sink;
+ bool has_hdmi_audio;
+ /* Should set this when detect hotplug */
+ bool hdmi_device_connected;
+ struct mdfld_hdmi_i2c *i2c_bus;
+ struct i2c_adapter *hdmi_i2c_adapter; /* for control functions */
+ struct drm_device *dev;
+};
+
+static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct drm_device *dev = encoder->dev;
+ struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
+ struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
+ u32 hdmib;
+ struct drm_crtc *crtc = encoder->crtc;
+ struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
+
+ hdmib = (2 << 10);
+
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+ hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+ hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
+
+ if (gma_crtc->pipe == 1)
+ hdmib |= HDMIB_PIPE_B_SELECT;
+
+ if (hdmi_priv->has_hdmi_audio) {
+ hdmib |= HDMI_AUDIO_ENABLE;
+ hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
+ }
+
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct drm_device *dev = encoder->dev;
+ struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
+ struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
+ u32 hdmib;
+
+ hdmib = REG_READ(hdmi_priv->hdmi_reg);
+
+ if (mode != DRM_MODE_DPMS_ON)
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
+ else
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_save(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
+
+ hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_restore(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
+
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static enum drm_connector_status cdv_hdmi_detect(
+ struct drm_connector *connector, bool force)
+{
+ struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
+ struct edid *edid = NULL;
+ enum drm_connector_status status = connector_status_disconnected;
+
+ edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
+
+ hdmi_priv->has_hdmi_sink = false;
+ hdmi_priv->has_hdmi_audio = false;
+ if (edid) {
+ if (edid->input & DRM_EDID_INPUT_DIGITAL) {
+ status = connector_status_connected;
+ hdmi_priv->has_hdmi_sink =
+ drm_detect_hdmi_monitor(edid);
+ hdmi_priv->has_hdmi_audio =
+ drm_detect_monitor_audio(edid);
+ }
+ kfree(edid);
+ }
+ return status;
+}
+
+static int cdv_hdmi_set_property(struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t value)
+{
+ struct drm_encoder *encoder = connector->encoder;
+
+ if (!strcmp(property->name, "scaling mode") && encoder) {
+ struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
+ bool centre;
+ uint64_t curValue;
+
+ if (!crtc)
+ return -1;
+
+ switch (value) {
+ case DRM_MODE_SCALE_FULLSCREEN:
+ break;
+ case DRM_MODE_SCALE_NO_SCALE:
+ break;
+ case DRM_MODE_SCALE_ASPECT:
+ break;
+ default:
+ return -1;
+ }
+
+ if (drm_object_property_get_value(&connector->base,
+ property, &curValue))
+ return -1;
+
+ if (curValue == value)
+ return 0;
+
+ if (drm_object_property_set_value(&connector->base,
+ property, value))
+ return -1;
+
+ centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
+ (value == DRM_MODE_SCALE_NO_SCALE);
+
+ if (crtc->saved_mode.hdisplay != 0 &&
+ crtc->saved_mode.vdisplay != 0) {
+ if (centre) {
+ if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
+ encoder->crtc->x, encoder->crtc->y, encoder->crtc->primary->fb))
+ return -1;
+ } else {
+ const struct drm_encoder_helper_funcs *helpers
+ = encoder->helper_private;
+ helpers->mode_set(encoder, &crtc->saved_mode,
+ &crtc->saved_adjusted_mode);
+ }
+ }
+ }
+ return 0;
+}
+
+/*
+ * Return the list of HDMI DDC modes if available.
+ */
+static int cdv_hdmi_get_modes(struct drm_connector *connector)
+{
+ struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
+ struct edid *edid = NULL;
+ int ret = 0;
+
+ edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
+ if (edid) {
+ drm_mode_connector_update_edid_property(connector, edid);
+ ret = drm_add_edid_modes(connector, edid);
+ kfree(edid);
+ }
+ return ret;
+}
+
+static int cdv_hdmi_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ if (mode->clock > 165000)
+ return MODE_CLOCK_HIGH;
+ if (mode->clock < 20000)
+ return MODE_CLOCK_HIGH;
+
+ /* just in case */
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ return MODE_NO_DBLESCAN;
+
+ /* just in case */
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ return MODE_NO_INTERLACE;
+
+ return MODE_OK;
+}
+
+static void cdv_hdmi_destroy(struct drm_connector *connector)
+{
+ struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
+
+ if (gma_encoder->i2c_bus)
+ psb_intel_i2c_destroy(gma_encoder->i2c_bus);
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
+ .dpms = cdv_hdmi_dpms,
+ .mode_fixup = gma_encoder_mode_fixup,
+ .prepare = gma_encoder_prepare,
+ .mode_set = cdv_hdmi_mode_set,
+ .commit = gma_encoder_commit,
+};
+
+static const struct drm_connector_helper_funcs
+ cdv_hdmi_connector_helper_funcs = {
+ .get_modes = cdv_hdmi_get_modes,
+ .mode_valid = cdv_hdmi_mode_valid,
+ .best_encoder = gma_best_encoder,
+};
+
+static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .save = cdv_hdmi_save,
+ .restore = cdv_hdmi_restore,
+ .detect = cdv_hdmi_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .set_property = cdv_hdmi_set_property,
+ .destroy = cdv_hdmi_destroy,
+};
+
+void cdv_hdmi_init(struct drm_device *dev,
+ struct psb_intel_mode_device *mode_dev, int reg)
+{
+ struct gma_encoder *gma_encoder;
+ struct gma_connector *gma_connector;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ struct mid_intel_hdmi_priv *hdmi_priv;
+ int ddc_bus;
+
+ gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL);
+
+ if (!gma_encoder)
+ return;
+
+ gma_connector = kzalloc(sizeof(struct gma_connector),
+ GFP_KERNEL);
+
+ if (!gma_connector)
+ goto err_connector;
+
+ hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
+
+ if (!hdmi_priv)
+ goto err_priv;
+
+ connector = &gma_connector->base;
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+ encoder = &gma_encoder->base;
+ drm_connector_init(dev, connector,
+ &cdv_hdmi_connector_funcs,
+ DRM_MODE_CONNECTOR_DVID);
+
+ drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
+ DRM_MODE_ENCODER_TMDS);
+
+ gma_connector_attach_encoder(gma_connector, gma_encoder);
+ gma_encoder->type = INTEL_OUTPUT_HDMI;
+ hdmi_priv->hdmi_reg = reg;
+ hdmi_priv->has_hdmi_sink = false;
+ gma_encoder->dev_priv = hdmi_priv;
+
+ drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
+ drm_connector_helper_add(connector,
+ &cdv_hdmi_connector_helper_funcs);
+ connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+ connector->interlace_allowed = false;
+ connector->doublescan_allowed = false;
+
+ drm_object_attach_property(&connector->base,
+ dev->mode_config.scaling_mode_property,
+ DRM_MODE_SCALE_FULLSCREEN);
+
+ switch (reg) {
+ case SDVOB:
+ ddc_bus = GPIOE;
+ gma_encoder->ddi_select = DDI0_SELECT;
+ break;
+ case SDVOC:
+ ddc_bus = GPIOD;
+ gma_encoder->ddi_select = DDI1_SELECT;
+ break;
+ default:
+ DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
+ goto failed_ddc;
+ break;
+ }
+
+ gma_encoder->i2c_bus = psb_intel_i2c_create(dev,
+ ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
+
+ if (!gma_encoder->i2c_bus) {
+ dev_err(dev->dev, "No ddc adapter available!\n");
+ goto failed_ddc;
+ }
+
+ hdmi_priv->hdmi_i2c_adapter = &(gma_encoder->i2c_bus->adapter);
+ hdmi_priv->dev = dev;
+ drm_connector_register(connector);
+ return;
+
+failed_ddc:
+ drm_encoder_cleanup(encoder);
+ drm_connector_cleanup(connector);
+err_priv:
+ kfree(gma_connector);
+err_connector:
+ kfree(gma_encoder);
+}
Code Review / kvmfornfv.git / blobdiff