367 lines
9.9 KiB
C
367 lines
9.9 KiB
C
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/*
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* Copyright © 2006-2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* jim liu <jim.liu@intel.com>
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*/
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#include <linux/pm_runtime.h>
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#include <drm/drm.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_modeset_helper_vtables.h>
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#include <drm/drm_simple_kms_helper.h>
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#include "cdv_device.h"
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#include "psb_drv.h"
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#include "psb_intel_drv.h"
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#include "psb_intel_reg.h"
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/* hdmi control bits */
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#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
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#define HDMI_BORDER_ENABLE (1 << 7)
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#define HDMI_AUDIO_ENABLE (1 << 6)
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#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
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#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
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/* hdmi-b control bits */
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#define HDMIB_PIPE_B_SELECT (1 << 30)
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struct mid_intel_hdmi_priv {
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u32 hdmi_reg;
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u32 save_HDMIB;
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bool has_hdmi_sink;
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bool has_hdmi_audio;
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/* Should set this when detect hotplug */
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bool hdmi_device_connected;
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struct drm_device *dev;
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};
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static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct drm_device *dev = encoder->dev;
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struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
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struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
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u32 hdmib;
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struct drm_crtc *crtc = encoder->crtc;
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struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
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hdmib = (2 << 10);
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if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
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hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
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if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
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hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
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if (gma_crtc->pipe == 1)
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hdmib |= HDMIB_PIPE_B_SELECT;
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if (hdmi_priv->has_hdmi_audio) {
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hdmib |= HDMI_AUDIO_ENABLE;
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hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
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}
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
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{
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struct drm_device *dev = encoder->dev;
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struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
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struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
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u32 hdmib;
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hdmib = REG_READ(hdmi_priv->hdmi_reg);
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if (mode != DRM_MODE_DPMS_ON)
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
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else
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static void cdv_hdmi_save(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
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struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
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hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
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}
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static void cdv_hdmi_restore(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
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struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
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REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static enum drm_connector_status cdv_hdmi_detect(
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struct drm_connector *connector, bool force)
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{
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struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
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struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
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struct edid *edid = NULL;
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enum drm_connector_status status = connector_status_disconnected;
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edid = drm_get_edid(connector, connector->ddc);
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hdmi_priv->has_hdmi_sink = false;
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hdmi_priv->has_hdmi_audio = false;
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if (edid) {
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if (edid->input & DRM_EDID_INPUT_DIGITAL) {
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status = connector_status_connected;
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hdmi_priv->has_hdmi_sink =
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drm_detect_hdmi_monitor(edid);
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hdmi_priv->has_hdmi_audio =
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drm_detect_monitor_audio(edid);
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}
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kfree(edid);
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}
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return status;
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}
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static int cdv_hdmi_set_property(struct drm_connector *connector,
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struct drm_property *property,
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uint64_t value)
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{
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struct drm_encoder *encoder = connector->encoder;
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if (!strcmp(property->name, "scaling mode") && encoder) {
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struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
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bool centre;
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uint64_t curValue;
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if (!crtc)
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return -1;
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switch (value) {
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case DRM_MODE_SCALE_FULLSCREEN:
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break;
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case DRM_MODE_SCALE_NO_SCALE:
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break;
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case DRM_MODE_SCALE_ASPECT:
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break;
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default:
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return -1;
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}
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if (drm_object_property_get_value(&connector->base,
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property, &curValue))
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return -1;
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if (curValue == value)
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return 0;
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if (drm_object_property_set_value(&connector->base,
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property, value))
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return -1;
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centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
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(value == DRM_MODE_SCALE_NO_SCALE);
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if (crtc->saved_mode.hdisplay != 0 &&
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crtc->saved_mode.vdisplay != 0) {
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if (centre) {
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if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
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encoder->crtc->x, encoder->crtc->y, encoder->crtc->primary->fb))
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return -1;
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} else {
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const struct drm_encoder_helper_funcs *helpers
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= encoder->helper_private;
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helpers->mode_set(encoder, &crtc->saved_mode,
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&crtc->saved_adjusted_mode);
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}
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}
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}
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return 0;
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}
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/*
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* Return the list of HDMI DDC modes if available.
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*/
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static int cdv_hdmi_get_modes(struct drm_connector *connector)
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{
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struct edid *edid = NULL;
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int ret = 0;
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edid = drm_get_edid(connector, connector->ddc);
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if (edid) {
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drm_connector_update_edid_property(connector, edid);
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ret = drm_add_edid_modes(connector, edid);
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kfree(edid);
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}
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return ret;
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}
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static enum drm_mode_status cdv_hdmi_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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if (mode->clock > 165000)
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return MODE_CLOCK_HIGH;
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if (mode->clock < 20000)
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return MODE_CLOCK_HIGH;
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/* just in case */
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if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
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return MODE_NO_DBLESCAN;
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/* just in case */
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if (mode->flags & DRM_MODE_FLAG_INTERLACE)
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return MODE_NO_INTERLACE;
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return MODE_OK;
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}
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static void cdv_hdmi_destroy(struct drm_connector *connector)
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{
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struct gma_connector *gma_connector = to_gma_connector(connector);
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struct gma_i2c_chan *ddc_bus = to_gma_i2c_chan(connector->ddc);
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gma_i2c_destroy(ddc_bus);
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drm_connector_cleanup(connector);
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kfree(gma_connector);
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}
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static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
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.dpms = cdv_hdmi_dpms,
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.prepare = gma_encoder_prepare,
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.mode_set = cdv_hdmi_mode_set,
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.commit = gma_encoder_commit,
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};
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static const struct drm_connector_helper_funcs
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cdv_hdmi_connector_helper_funcs = {
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.get_modes = cdv_hdmi_get_modes,
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.mode_valid = cdv_hdmi_mode_valid,
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.best_encoder = gma_best_encoder,
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};
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static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.detect = cdv_hdmi_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.set_property = cdv_hdmi_set_property,
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.destroy = cdv_hdmi_destroy,
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};
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void cdv_hdmi_init(struct drm_device *dev,
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struct psb_intel_mode_device *mode_dev, int reg)
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{
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struct gma_encoder *gma_encoder;
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struct gma_connector *gma_connector;
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struct drm_connector *connector;
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struct mid_intel_hdmi_priv *hdmi_priv;
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struct gma_i2c_chan *ddc_bus;
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int ddc_reg;
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int ret;
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gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL);
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if (!gma_encoder)
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return;
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gma_connector = kzalloc(sizeof(struct gma_connector), GFP_KERNEL);
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if (!gma_connector)
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goto err_free_encoder;
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hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
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if (!hdmi_priv)
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goto err_free_connector;
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connector = &gma_connector->base;
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connector->polled = DRM_CONNECTOR_POLL_HPD;
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gma_connector->save = cdv_hdmi_save;
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gma_connector->restore = cdv_hdmi_restore;
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switch (reg) {
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case SDVOB:
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ddc_reg = GPIOE;
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gma_encoder->ddi_select = DDI0_SELECT;
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break;
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case SDVOC:
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ddc_reg = GPIOD;
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gma_encoder->ddi_select = DDI1_SELECT;
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break;
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default:
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DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
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goto err_free_hdmi_priv;
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}
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ddc_bus = gma_i2c_create(dev, ddc_reg,
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(reg == SDVOB) ? "HDMIB" : "HDMIC");
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if (!ddc_bus) {
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dev_err(dev->dev, "No ddc adapter available!\n");
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goto err_free_hdmi_priv;
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}
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ret = drm_connector_init_with_ddc(dev, connector,
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&cdv_hdmi_connector_funcs,
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DRM_MODE_CONNECTOR_DVID,
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&ddc_bus->base);
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if (ret)
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goto err_ddc_destroy;
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ret = drm_simple_encoder_init(dev, &gma_encoder->base,
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DRM_MODE_ENCODER_TMDS);
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if (ret)
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goto err_connector_cleanup;
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gma_connector_attach_encoder(gma_connector, gma_encoder);
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gma_encoder->type = INTEL_OUTPUT_HDMI;
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hdmi_priv->hdmi_reg = reg;
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hdmi_priv->has_hdmi_sink = false;
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gma_encoder->dev_priv = hdmi_priv;
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drm_encoder_helper_add(&gma_encoder->base, &cdv_hdmi_helper_funcs);
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drm_connector_helper_add(connector,
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&cdv_hdmi_connector_helper_funcs);
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connector->display_info.subpixel_order = SubPixelHorizontalRGB;
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connector->interlace_allowed = false;
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connector->doublescan_allowed = false;
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drm_object_attach_property(&connector->base,
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dev->mode_config.scaling_mode_property,
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DRM_MODE_SCALE_FULLSCREEN);
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hdmi_priv->dev = dev;
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return;
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err_connector_cleanup:
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drm_connector_cleanup(connector);
|
||
|
|
err_ddc_destroy:
|
||
|
|
gma_i2c_destroy(ddc_bus);
|
||
|
|
err_free_hdmi_priv:
|
||
|
|
kfree(hdmi_priv);
|
||
|
|
err_free_connector:
|
||
|
|
kfree(gma_connector);
|
||
|
|
err_free_encoder:
|
||
|
|
kfree(gma_encoder);
|
||
|
|
}
|