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/*
* Copyright 2011 Red Hat Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Ben Skeggs
*/
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_connector.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
static bool
hdmi_sor(struct drm_encoder *encoder)
{
struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
if (dev_priv->chipset < 0xa3)
return false;
return true;
}
static inline u32
hdmi_base(struct drm_encoder *encoder)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
if (!hdmi_sor(encoder))
return 0x616500 + (nv_crtc->index * 0x800);
return 0x61c500 + (nv_encoder->or * 0x800);
}
static void
hdmi_wr32(struct drm_encoder *encoder, u32 reg, u32 val)
{
nv_wr32(encoder->dev, hdmi_base(encoder) + reg, val);
}
static u32
hdmi_rd32(struct drm_encoder *encoder, u32 reg)
{
return nv_rd32(encoder->dev, hdmi_base(encoder) + reg);
}
static u32
hdmi_mask(struct drm_encoder *encoder, u32 reg, u32 mask, u32 val)
{
u32 tmp = hdmi_rd32(encoder, reg);
hdmi_wr32(encoder, reg, (tmp & ~mask) | val);
return tmp;
}
static void
nouveau_audio_disconnect(struct drm_encoder *encoder)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_device *dev = encoder->dev;
u32 or = nv_encoder->or * 0x800;
if (hdmi_sor(encoder)) {
nv_mask(dev, 0x61c448 + or, 0x00000003, 0x00000000);
}
}
static void
nouveau_audio_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_connector *nv_connector;
struct drm_device *dev = encoder->dev;
u32 or = nv_encoder->or * 0x800;
int i;
nv_connector = nouveau_encoder_connector_get(nv_encoder);
if (!drm_detect_monitor_audio(nv_connector->edid)) {
nouveau_audio_disconnect(encoder);
return;
}
if (hdmi_sor(encoder)) {
nv_mask(dev, 0x61c448 + or, 0x00000001, 0x00000001);
drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
if (nv_connector->base.eld[0]) {
u8 *eld = nv_connector->base.eld;
for (i = 0; i < eld[2] * 4; i++)
nv_wr32(dev, 0x61c440 + or, (i << 8) | eld[i]);
for (i = eld[2] * 4; i < 0x60; i++)
nv_wr32(dev, 0x61c440 + or, (i << 8) | 0x00);
nv_mask(dev, 0x61c448 + or, 0x00000002, 0x00000002);
}
}
}
static void
nouveau_hdmi_disconnect(struct drm_encoder *encoder)
{
nouveau_audio_disconnect(encoder);
}
void
nouveau_hdmi_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_connector *nv_connector;
nv_connector = nouveau_encoder_connector_get(nv_encoder);
if (!mode || !nv_connector || !nv_connector->edid ||
!drm_detect_hdmi_monitor(nv_connector->edid)) {
nouveau_hdmi_disconnect(encoder);
return;
}
nouveau_audio_mode_set(encoder, mode);
}
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