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Date: Wed, 17 Sep 2008 17:00:04 +0800
From: "peerchen" <peerchen@...il.com>
To: "Wei Ni" <wni@...dia.com>, "Takashi Iwai" <tiwai@...e.de>,
"Pavel Hofman" <pavel.hofman@...ite.cz>
Cc: "Peer Chen" <pchen@...dia.com>,
"alsa-devel" <alsa-devel@...a-project.org>,
"linux-kernel" <linux-kernel@...r.kernel.org>,
"akpm" <akpm@...ux-foundation.org>
Subject: Re: Re: [alsa-devel] [PATCH] add the nvidia HDMI codec driverfor MCP77/79
new patch base on git tree.
Signed-off-by: Wei Ni <wni@...dia.com>
Signed-off-by: Peer Chen <peerchen@...il.com>
---
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/hda/hda_codec.c linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_codec.c
--- linux-2.6-tiwai-sound/sound/pci/hda/hda_codec.c 2008-09-10 17:40:52.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_codec.c 2008-09-10 17:51:36.000000000 +0800
@@ -94,6 +94,9 @@ static const struct hda_codec_preset *hd
#ifdef CONFIG_SND_HDA_CODEC_VIA
snd_hda_preset_via,
#endif
+#ifdef CONFIG_SND_HDA_CODEC_NVHDMI
+ snd_hda_preset_nvhdmi,
+#endif
NULL
};
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/hda/hda_intel.c linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_intel.c
--- linux-2.6-tiwai-sound/sound/pci/hda/hda_intel.c 2008-09-10 17:40:52.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_intel.c 2008-09-10 17:49:31.000000000 +0800
@@ -1220,6 +1220,9 @@ static int __devinit azx_codec_create(st
if (err < 0)
return err;
+ if (chip->driver_type == AZX_DRIVER_NVIDIA)
+ chip->bus->needs_damn_long_delay = 1;
+
codecs = audio_codecs = 0;
max_slots = azx_max_codecs[chip->driver_type];
if (!max_slots)
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/hda/hda_patch.h linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_patch.h
--- linux-2.6-tiwai-sound/sound/pci/hda/hda_patch.h 2008-09-10 17:40:52.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/hda/hda_patch.h 2008-09-10 17:50:41.000000000 +0800
@@ -18,3 +18,5 @@ extern struct hda_codec_preset snd_hda_p
extern struct hda_codec_preset snd_hda_preset_conexant[];
/* VIA codecs */
extern struct hda_codec_preset snd_hda_preset_via[];
+/* NVIDIA HDMI codecs */
+extern struct hda_codec_preset snd_hda_preset_nvhdmi[];
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/hda/Makefile linux-2.6-tiwai-sound-niwei/sound/pci/hda/Makefile
--- linux-2.6-tiwai-sound/sound/pci/hda/Makefile 2008-09-10 17:40:52.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/hda/Makefile 2008-09-10 17:52:06.000000000 +0800
@@ -15,5 +15,6 @@ snd-hda-intel-$(CONFIG_SND_HDA_CODEC_SI3
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_ATIHDMI) += patch_atihdmi.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CONEXANT) += patch_conexant.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_VIA) += patch_via.o
+snd-hda-intel-$(CONFIG_SND_HDA_CODEC_NVHDMI) += patch_nvhdmi.o
obj-$(CONFIG_SND_HDA_INTEL) += snd-hda-intel.o
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/hda/patch_nvhdmi.c linux-2.6-tiwai-sound-niwei/sound/pci/hda/patch_nvhdmi.c
--- linux-2.6-tiwai-sound/sound/pci/hda/patch_nvhdmi.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/hda/patch_nvhdmi.c 2008-09-10 18:03:15.000000000 +0800
@@ -0,0 +1,164 @@
+/*
+ * Universal Interface for Intel High Definition Audio Codec
+ *
+ * HD audio interface patch for Nvidia HDMI codecs
+ *
+ * Copyright (c) 2008 Nvidia Corp. All rights reserved.
+ * Copyright 2008 Wei Ni <wni@...dia.com>
+ *
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+
+struct nvhdmi_spec {
+ struct hda_multi_out multiout;
+
+ struct hda_pcm pcm_rec;
+};
+
+static struct hda_verb nvhdmi_basic_init[] = {
+ /* enable digital output on pin widget */
+ { 0x05, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
+ {} /* terminator */
+};
+
+/*
+ * Controls
+ */
+static int nvhdmi_build_controls(struct hda_codec *codec)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ int err;
+
+ err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int nvhdmi_init(struct hda_codec *codec)
+{
+ snd_hda_sequence_write(codec, nvhdmi_basic_init);
+ return 0;
+}
+
+/*
+ * Digital out
+ */
+static int nvhdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
+ struct hda_codec *codec,
+ struct snd_pcm_substream *substream)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ return snd_hda_multi_out_dig_open(codec, &spec->multiout);
+}
+
+static int nvhdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
+ struct hda_codec *codec,
+ struct snd_pcm_substream *substream)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int nvhdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+ struct hda_codec *codec,
+ unsigned int stream_tag,
+ unsigned int format,
+ struct snd_pcm_substream *substream)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
+ format, substream);
+}
+
+static struct hda_pcm_stream nvhdmi_pcm_digital_playback = {
+ .substreams = 1,
+ .channels_min = 2,
+ .channels_max = 2,
+ .nid = 0x4, /* NID to query formats and rates and setup streams */
+ .rates = SNDRV_PCM_RATE_48000,
+ .maxbps = 16,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .ops = {
+ .open = nvhdmi_dig_playback_pcm_open,
+ .close = nvhdmi_dig_playback_pcm_close,
+ .prepare = nvhdmi_dig_playback_pcm_prepare
+ },
+};
+
+static int nvhdmi_build_pcms(struct hda_codec *codec)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ struct hda_pcm *info = &spec->pcm_rec;
+
+ codec->num_pcms = 1;
+ codec->pcm_info = info;
+
+ info->name = "NVIDIA HDMI";
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK] = nvhdmi_pcm_digital_playback;
+
+ return 0;
+}
+
+static void nvhdmi_free(struct hda_codec *codec)
+{
+ kfree(codec->spec);
+}
+
+static struct hda_codec_ops nvhdmi_patch_ops = {
+ .build_controls = nvhdmi_build_controls,
+ .build_pcms = nvhdmi_build_pcms,
+ .init = nvhdmi_init,
+ .free = nvhdmi_free,
+};
+
+static int patch_nvhdmi(struct hda_codec *codec)
+{
+ struct nvhdmi_spec *spec;
+
+ spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+ if (spec == NULL)
+ return -ENOMEM;
+
+ codec->spec = spec;
+
+ spec->multiout.num_dacs = 0; /* no analog */
+ spec->multiout.max_channels = 2;
+ spec->multiout.dig_out_nid = 0x4; /* NID for copying analog to digital,
+ * seems to be unused in pure-digital
+ * case. */
+
+ codec->patch_ops = nvhdmi_patch_ops;
+
+ return 0;
+}
+
+/*
+ * patch entries
+ */
+struct hda_codec_preset snd_hda_preset_nvhdmi[] = {
+ { .id = 0x10de0002, .name = "Nvidia MCP77/78 HDMI", .patch = patch_nvhdmi },
+ { .id = 0x10de0007, .name = "Nvidia MCP79/7A HDMI", .patch = patch_nvhdmi },
+ {} /* terminator */
+};
diff -uprN -X linux-2.6-tiwai-sound/Documentation/dontdiff linux-2.6-tiwai-sound/sound/pci/Kconfig linux-2.6-tiwai-sound-niwei/sound/pci/Kconfig
--- linux-2.6-tiwai-sound/sound/pci/Kconfig 2008-09-10 17:40:51.000000000 +0800
+++ linux-2.6-tiwai-sound-niwei/sound/pci/Kconfig 2008-09-10 17:53:38.000000000 +0800
@@ -565,6 +565,14 @@ config SND_HDA_CODEC_ATIHDMI
Say Y here to include ATI HDMI HD-audio codec support in
snd-hda-intel driver, such as ATI RS600 HDMI.
+config SND_HDA_CODEC_NVHDMI
+ bool "Build NVIDIA HDMI HD-audio codec support"
+ depends on SND_HDA_INTEL
+ default y
+ help
+ Say Y here to include NVIDIA HDMI HD-audio codec support in
+ snd-hda-intel driver, such as NVIDIA MCP77/78 HDMI.
+
config SND_HDA_CODEC_CONEXANT
bool "Build Conexant HD-audio codec support"
depends on SND_HDA_INTEL
-
--
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