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drm/i915: Add support for integrated HDMI on G4X hardware.

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This is ported directly from the userland 2D driver code.  The HDMI audio bits
aren't hooked up yet.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Eric Anholt 2009-01-02 13:33:00 -08:00 committed by Dave Airlie
parent 3f8bc370ac
commit 7d57382e65
7 changed files with 322 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/Makefile
View File

@ -13,6 +13,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
intel_crt.o \
intel_lvds.o \
intel_bios.o \
intel_hdmi.o \
intel_sdvo.o \
intel_modes.o \
intel_i2c.o \

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -664,6 +664,7 @@ extern void intel_modeset_cleanup(struct drm_device *dev);
writel(upper_32_bits(val), dev_priv->regs + \
(reg) + 4))
#endif
#define POSTING_READ(reg) (void)I915_READ(reg)
#define I915_VERBOSE 0
@ -760,6 +761,7 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev))
#define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev))
#define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev))
#define PRIMARY_RINGBUFFER_SIZE (128*1024)

17
drivers/gpu/drm/i915/i915_reg.h
View File

@ -549,6 +549,8 @@
/** GM965 GM45 render standby register */
#define MCHBAR_RENDER_STANDBY 0x111B8
#define PEG_BAND_GAP_DATA 0x14d68
/*
* Overlay regs
*/
@ -612,6 +614,9 @@
/* Hotplug control (945+ only) */
#define PORT_HOTPLUG_EN 0x61110
#define HDMIB_HOTPLUG_INT_EN (1 << 29)
#define HDMIC_HOTPLUG_INT_EN (1 << 28)
#define HDMID_HOTPLUG_INT_EN (1 << 27)
#define SDVOB_HOTPLUG_INT_EN (1 << 26)
#define SDVOC_HOTPLUG_INT_EN (1 << 25)
#define TV_HOTPLUG_INT_EN (1 << 18)
@ -619,6 +624,9 @@
#define CRT_HOTPLUG_FORCE_DETECT (1 << 3)
#define PORT_HOTPLUG_STAT 0x61114
#define HDMIB_HOTPLUG_INT_STATUS (1 << 29)
#define HDMIC_HOTPLUG_INT_STATUS (1 << 28)
#define HDMID_HOTPLUG_INT_STATUS (1 << 27)
#define CRT_HOTPLUG_INT_STATUS (1 << 11)
#define TV_HOTPLUG_INT_STATUS (1 << 10)
#define CRT_HOTPLUG_MONITOR_MASK (3 << 8)
@ -648,7 +656,16 @@
#define SDVO_PHASE_SELECT_DEFAULT (6 << 19)
#define SDVO_CLOCK_OUTPUT_INVERT (1 << 18)
#define SDVOC_GANG_MODE (1 << 16)
#define SDVO_ENCODING_SDVO (0x0 << 10)
#define SDVO_ENCODING_HDMI (0x2 << 10)
/** Requird for HDMI operation */
#define SDVO_NULL_PACKETS_DURING_VSYNC (1 << 9)
#define SDVO_BORDER_ENABLE (1 << 7)
#define SDVO_AUDIO_ENABLE (1 << 6)
/** New with 965, default is to be set */
#define SDVO_VSYNC_ACTIVE_HIGH (1 << 4)
/** New with 965, default is to be set */
#define SDVO_HSYNC_ACTIVE_HIGH (1 << 3)
#define SDVOB_PCIE_CONCURRENCY (1 << 3)
#define SDVO_DETECTED (1 << 2)
/* Bits to be preserved when writing */

17
drivers/gpu/drm/i915/intel_display.c
View File

@ -751,6 +751,7 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
is_lvds = true;
break;
case INTEL_OUTPUT_SDVO:
case INTEL_OUTPUT_HDMI:
is_sdvo = true;
break;
case INTEL_OUTPUT_DVO:
@ -1443,8 +1444,15 @@ static void intel_setup_outputs(struct drm_device *dev)
intel_lvds_init(dev);
if (IS_I9XX(dev)) {
intel_sdvo_init(dev, SDVOB);
intel_sdvo_init(dev, SDVOC);
int found;
found = intel_sdvo_init(dev, SDVOB);
if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
intel_hdmi_init(dev, SDVOB);
found = intel_sdvo_init(dev, SDVOC);
if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
intel_hdmi_init(dev, SDVOC);
} else
intel_dvo_init(dev);
@ -1458,6 +1466,11 @@ static void intel_setup_outputs(struct drm_device *dev)
/* valid crtcs */
switch(intel_output->type) {
case INTEL_OUTPUT_HDMI:
crtc_mask = ((1 << 0)|
(1 << 1));
clone_mask = ((1 << INTEL_OUTPUT_HDMI));
break;
case INTEL_OUTPUT_DVO:
case INTEL_OUTPUT_SDVO:
crtc_mask = ((1 << 0)|

4
drivers/gpu/drm/i915/intel_drv.h
View File

@ -53,6 +53,7 @@
#define INTEL_OUTPUT_SDVO 3
#define INTEL_OUTPUT_LVDS 4
#define INTEL_OUTPUT_TVOUT 5
#define INTEL_OUTPUT_HDMI 6
#define INTEL_DVO_CHIP_NONE 0
#define INTEL_DVO_CHIP_LVDS 1
@ -109,7 +110,8 @@ int intel_ddc_get_modes(struct intel_output *intel_output);
extern bool intel_ddc_probe(struct intel_output *intel_output);
extern void intel_crt_init(struct drm_device *dev);
extern void intel_sdvo_init(struct drm_device *dev, int output_device);
extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
extern void intel_dvo_init(struct drm_device *dev);
extern void intel_tv_init(struct drm_device *dev);
extern void intel_lvds_init(struct drm_device *dev);

280
drivers/gpu/drm/i915/intel_hdmi.c Normal file
View File

@ -0,0 +1,280 @@
/*
* 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/delay.h>
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"
struct intel_hdmi_priv {
u32 sdvox_reg;
u32 save_SDVOX;
int 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_output *intel_output = enc_to_intel_output(encoder);
struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
u32 sdvox;
sdvox = SDVO_ENCODING_HDMI |
SDVO_BORDER_ENABLE |
SDVO_VSYNC_ACTIVE_HIGH |
SDVO_HSYNC_ACTIVE_HIGH;
if (hdmi_priv->has_hdmi_sink)
sdvox |= SDVO_AUDIO_ENABLE;
if (intel_crtc->pipe == 1)
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_output *intel_output = enc_to_intel_output(encoder);
struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
u32 temp;
if (mode != DRM_MODE_DPMS_ON) {
temp = I915_READ(hdmi_priv->sdvox_reg);
I915_WRITE(hdmi_priv->sdvox_reg, temp & ~SDVO_ENABLE);
} else {
temp = I915_READ(hdmi_priv->sdvox_reg);
I915_WRITE(hdmi_priv->sdvox_reg, temp | SDVO_ENABLE);
}
POSTING_READ(hdmi_priv->sdvox_reg);
}
static void intel_hdmi_save(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
hdmi_priv->save_SDVOX = I915_READ(hdmi_priv->sdvox_reg);
}
static void intel_hdmi_restore(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
I915_WRITE(hdmi_priv->sdvox_reg, hdmi_priv->save_SDVOX);
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_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_output *intel_output = to_intel_output(connector);
struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
u32 temp, bit;
temp = I915_READ(PORT_HOTPLUG_EN);
I915_WRITE(PORT_HOTPLUG_EN,
temp |
HDMIB_HOTPLUG_INT_EN |
HDMIC_HOTPLUG_INT_EN |
HDMID_HOTPLUG_INT_EN);
POSTING_READ(PORT_HOTPLUG_EN);
switch (hdmi_priv->sdvox_reg) {
case SDVOB:
bit = HDMIB_HOTPLUG_INT_STATUS;
break;
case SDVOC:
bit = HDMIC_HOTPLUG_INT_STATUS;
break;
default:
return connector_status_unknown;
}
if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0)
return connector_status_connected;
else
return connector_status_disconnected;
}
static int intel_hdmi_get_modes(struct drm_connector *connector)
{
struct intel_output *intel_output = to_intel_output(connector);
/* 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(intel_output);
}
static void intel_hdmi_destroy(struct drm_connector *connector)
{
struct intel_output *intel_output = to_intel_output(connector);
if (intel_output->i2c_bus)
intel_i2c_destroy(intel_output->i2c_bus);
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(intel_output);
}
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 = {
.save = intel_hdmi_save,
.restore = intel_hdmi_restore,
.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_best_encoder,
};
static void intel_hdmi_enc_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(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_output *intel_output;
struct intel_hdmi_priv *hdmi_priv;
intel_output = kcalloc(sizeof(struct intel_output) +
sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
if (!intel_output)
return;
hdmi_priv = (struct intel_hdmi_priv *)(intel_output + 1);
connector = &intel_output->base;
drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
DRM_MODE_CONNECTOR_DVID);
drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
intel_output->type = INTEL_OUTPUT_HDMI;
connector->interlace_allowed = 0;
connector->doublescan_allowed = 0;
/* Set up the DDC bus. */
if (sdvox_reg == SDVOB)
intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
else
intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
if (!intel_output->ddc_bus)
goto err_connector;
hdmi_priv->sdvox_reg = sdvox_reg;
intel_output->dev_priv = hdmi_priv;
drm_encoder_init(dev, &intel_output->enc, &intel_hdmi_enc_funcs,
DRM_MODE_ENCODER_TMDS);
drm_encoder_helper_add(&intel_output->enc, &intel_hdmi_helper_funcs);
drm_mode_connector_attach_encoder(&intel_output->base,
&intel_output->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_output);
return;
}

8
drivers/gpu/drm/i915/intel_sdvo.c
View File

@ -978,7 +978,7 @@ static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
};
void intel_sdvo_init(struct drm_device *dev, int output_device)
bool intel_sdvo_init(struct drm_device *dev, int output_device)
{
struct drm_connector *connector;
struct intel_output *intel_output;
@ -991,7 +991,7 @@ void intel_sdvo_init(struct drm_device *dev, int output_device)
intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
if (!intel_output) {
return;
return false;
}
connector = &intel_output->base;
@ -1116,7 +1116,7 @@ void intel_sdvo_init(struct drm_device *dev, int output_device)
intel_output->ddc_bus = i2cbus;
return;
return true;
err_i2c:
intel_i2c_destroy(intel_output->i2c_bus);
@ -1124,5 +1124,5 @@ err_connector:
drm_connector_cleanup(connector);
kfree(intel_output);
return;
return false;
}