b599c0bca1
Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
306 lines
9.3 KiB
C
306 lines
9.3 KiB
C
/*
|
|
* Copyright 2006 Dave Airlie <airlied@linux.ie>
|
|
* Copyright © 2006-2009 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:
|
|
* Eric Anholt <eric@anholt.net>
|
|
* Jesse Barnes <jesse.barnes@intel.com>
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/delay.h>
|
|
#include "drmP.h"
|
|
#include "drm.h"
|
|
#include "drm_crtc.h"
|
|
#include "drm_edid.h"
|
|
#include "intel_drv.h"
|
|
#include "i915_drm.h"
|
|
#include "i915_drv.h"
|
|
|
|
struct intel_hdmi_priv {
|
|
u32 sdvox_reg;
|
|
bool has_hdmi_sink;
|
|
};
|
|
|
|
static void intel_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 drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_crtc *crtc = encoder->crtc;
|
|
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
|
|
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
|
|
struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
|
|
u32 sdvox;
|
|
|
|
sdvox = SDVO_ENCODING_HDMI | SDVO_BORDER_ENABLE;
|
|
if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
|
|
sdvox |= SDVO_VSYNC_ACTIVE_HIGH;
|
|
if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
|
|
sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
|
|
|
|
if (hdmi_priv->has_hdmi_sink) {
|
|
sdvox |= SDVO_AUDIO_ENABLE;
|
|
if (HAS_PCH_CPT(dev))
|
|
sdvox |= HDMI_MODE_SELECT;
|
|
}
|
|
|
|
if (intel_crtc->pipe == 1) {
|
|
if (HAS_PCH_CPT(dev))
|
|
sdvox |= PORT_TRANS_B_SEL_CPT;
|
|
else
|
|
sdvox |= SDVO_PIPE_B_SELECT;
|
|
}
|
|
|
|
I915_WRITE(hdmi_priv->sdvox_reg, sdvox);
|
|
POSTING_READ(hdmi_priv->sdvox_reg);
|
|
}
|
|
|
|
static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
|
|
{
|
|
struct drm_device *dev = encoder->dev;
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
|
|
struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
|
|
u32 temp;
|
|
|
|
temp = I915_READ(hdmi_priv->sdvox_reg);
|
|
|
|
/* HW workaround, need to toggle enable bit off and on for 12bpc, but
|
|
* we do this anyway which shows more stable in testing.
|
|
*/
|
|
if (HAS_PCH_SPLIT(dev)) {
|
|
I915_WRITE(hdmi_priv->sdvox_reg, temp & ~SDVO_ENABLE);
|
|
POSTING_READ(hdmi_priv->sdvox_reg);
|
|
}
|
|
|
|
if (mode != DRM_MODE_DPMS_ON) {
|
|
temp &= ~SDVO_ENABLE;
|
|
} else {
|
|
temp |= SDVO_ENABLE;
|
|
}
|
|
|
|
I915_WRITE(hdmi_priv->sdvox_reg, temp);
|
|
POSTING_READ(hdmi_priv->sdvox_reg);
|
|
|
|
/* HW workaround, need to write this twice for issue that may result
|
|
* in first write getting masked.
|
|
*/
|
|
if (HAS_PCH_SPLIT(dev)) {
|
|
I915_WRITE(hdmi_priv->sdvox_reg, temp);
|
|
POSTING_READ(hdmi_priv->sdvox_reg);
|
|
}
|
|
}
|
|
|
|
static int intel_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;
|
|
|
|
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
|
|
return MODE_NO_DBLESCAN;
|
|
|
|
return MODE_OK;
|
|
}
|
|
|
|
static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static enum drm_connector_status
|
|
intel_hdmi_detect(struct drm_connector *connector)
|
|
{
|
|
struct drm_encoder *encoder = intel_attached_encoder(connector);
|
|
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
|
|
struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
|
|
struct edid *edid = NULL;
|
|
enum drm_connector_status status = connector_status_disconnected;
|
|
|
|
hdmi_priv->has_hdmi_sink = false;
|
|
edid = drm_get_edid(connector,
|
|
intel_encoder->ddc_bus);
|
|
|
|
if (edid) {
|
|
if (edid->input & DRM_EDID_INPUT_DIGITAL) {
|
|
status = connector_status_connected;
|
|
hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
|
|
}
|
|
connector->display_info.raw_edid = NULL;
|
|
kfree(edid);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static int intel_hdmi_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct drm_encoder *encoder = intel_attached_encoder(connector);
|
|
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
|
|
|
|
/* We should parse the EDID data and find out if it's an HDMI sink so
|
|
* we can send audio to it.
|
|
*/
|
|
|
|
return intel_ddc_get_modes(connector, intel_encoder->ddc_bus);
|
|
}
|
|
|
|
static void intel_hdmi_destroy(struct drm_connector *connector)
|
|
{
|
|
drm_sysfs_connector_remove(connector);
|
|
drm_connector_cleanup(connector);
|
|
kfree(connector);
|
|
}
|
|
|
|
static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
|
|
.dpms = intel_hdmi_dpms,
|
|
.mode_fixup = intel_hdmi_mode_fixup,
|
|
.prepare = intel_encoder_prepare,
|
|
.mode_set = intel_hdmi_mode_set,
|
|
.commit = intel_encoder_commit,
|
|
};
|
|
|
|
static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
|
|
.dpms = drm_helper_connector_dpms,
|
|
.detect = intel_hdmi_detect,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.destroy = intel_hdmi_destroy,
|
|
};
|
|
|
|
static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
|
|
.get_modes = intel_hdmi_get_modes,
|
|
.mode_valid = intel_hdmi_mode_valid,
|
|
.best_encoder = intel_attached_encoder,
|
|
};
|
|
|
|
static void intel_hdmi_enc_destroy(struct drm_encoder *encoder)
|
|
{
|
|
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
|
|
|
|
if (intel_encoder->i2c_bus)
|
|
intel_i2c_destroy(intel_encoder->i2c_bus);
|
|
drm_encoder_cleanup(encoder);
|
|
kfree(intel_encoder);
|
|
}
|
|
|
|
static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
|
|
.destroy = intel_hdmi_enc_destroy,
|
|
};
|
|
|
|
void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_connector *connector;
|
|
struct intel_encoder *intel_encoder;
|
|
struct intel_connector *intel_connector;
|
|
struct intel_hdmi_priv *hdmi_priv;
|
|
|
|
intel_encoder = kcalloc(sizeof(struct intel_encoder) +
|
|
sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
|
|
if (!intel_encoder)
|
|
return;
|
|
|
|
intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
|
|
if (!intel_connector) {
|
|
kfree(intel_encoder);
|
|
return;
|
|
}
|
|
|
|
hdmi_priv = (struct intel_hdmi_priv *)(intel_encoder + 1);
|
|
|
|
connector = &intel_connector->base;
|
|
drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
|
|
|
|
intel_encoder->type = INTEL_OUTPUT_HDMI;
|
|
|
|
connector->polled = DRM_CONNECTOR_POLL_HPD;
|
|
connector->interlace_allowed = 0;
|
|
connector->doublescan_allowed = 0;
|
|
intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
|
|
|
|
/* Set up the DDC bus. */
|
|
if (sdvox_reg == SDVOB) {
|
|
intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
|
|
intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
|
|
dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
|
|
} else if (sdvox_reg == SDVOC) {
|
|
intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
|
|
intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
|
|
dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
|
|
} else if (sdvox_reg == HDMIB) {
|
|
intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
|
|
intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
|
|
"HDMIB");
|
|
dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
|
|
} else if (sdvox_reg == HDMIC) {
|
|
intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
|
|
intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
|
|
"HDMIC");
|
|
dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
|
|
} else if (sdvox_reg == HDMID) {
|
|
intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
|
|
intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
|
|
"HDMID");
|
|
dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
|
|
}
|
|
if (!intel_encoder->ddc_bus)
|
|
goto err_connector;
|
|
|
|
hdmi_priv->sdvox_reg = sdvox_reg;
|
|
intel_encoder->dev_priv = hdmi_priv;
|
|
|
|
drm_encoder_init(dev, &intel_encoder->enc, &intel_hdmi_enc_funcs,
|
|
DRM_MODE_ENCODER_TMDS);
|
|
drm_encoder_helper_add(&intel_encoder->enc, &intel_hdmi_helper_funcs);
|
|
|
|
drm_mode_connector_attach_encoder(&intel_connector->base,
|
|
&intel_encoder->enc);
|
|
drm_sysfs_connector_add(connector);
|
|
|
|
/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
|
|
* 0xd. Failure to do so will result in spurious interrupts being
|
|
* generated on the port when a cable is not attached.
|
|
*/
|
|
if (IS_G4X(dev) && !IS_GM45(dev)) {
|
|
u32 temp = I915_READ(PEG_BAND_GAP_DATA);
|
|
I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
|
|
}
|
|
|
|
return;
|
|
|
|
err_connector:
|
|
drm_connector_cleanup(connector);
|
|
kfree(intel_encoder);
|
|
kfree(intel_connector);
|
|
|
|
return;
|
|
}
|