[alsa-devel][PATCH] add the nvidia HDMI codec driver for MCP77/79
From: peerchen
Date: Wed Sep 03 2008 - 03:58:35 EST
Add the nvidia HDMI codec driver for MCP77/79.
The patch based on kernel 2.6.27-rc5.
Signed-off-by: Wei Ni <wni@xxxxxxxxxx>
Signed-off-by: Peer Chen <peerchen@xxxxxxxxx>
---
diff -uprN -X linux-2.6.26-Orig/Documentation/dontdiff linux-2.6.26-Orig/sound/pci/hda/hda_intel.c linux-2.6.26-New/sound/pci/hda/hda_intel.c
--- linux-2.6.26-Orig/sound/pci/hda/hda_intel.c 2008-08-28 13:47:20.000000000 +0800
+++ linux-2.6.26-New/sound/pci/hda/hda_intel.c 2008-08-28 15:33:51.000000000 +0800
@@ -223,8 +223,8 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO
#define RIRB_INT_MASK 0x05
/* STATESTS int mask: SD2,SD1,SD0 */
-#define AZX_MAX_CODECS 3
-#define STATESTS_INT_MASK 0x07
+#define AZX_MAX_CODECS 4
+#define STATESTS_INT_MASK 0x0f
/* SD_CTL bits */
#define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
diff -uprN -X linux-2.6.26-Orig/Documentation/dontdiff linux-2.6.26-Orig/sound/pci/hda/hda_patch.h linux-2.6.26-New/sound/pci/hda/hda_patch.h
--- linux-2.6.26-Orig/sound/pci/hda/hda_patch.h 2008-08-28 13:47:20.000000000 +0800
+++ linux-2.6.26-New/sound/pci/hda/hda_patch.h 2008-08-28 15:33:51.000000000 +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-2.6.26-Orig/Documentation/dontdiff linux-2.6.26-Orig/sound/pci/hda/Makefile linux-2.6.26-New/sound/pci/hda/Makefile
--- linux-2.6.26-Orig/sound/pci/hda/Makefile 2008-08-28 13:47:20.000000000 +0800
+++ linux-2.6.26-New/sound/pci/hda/Makefile 2008-08-28 15:33:51.000000000 +0800
@@ -14,5 +14,6 @@ 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-2.6.26-Orig/Documentation/dontdiff linux-2.6.26-Orig/sound/pci/hda/patch_nvhdmi.c linux-2.6.26-New/sound/pci/hda/patch_nvhdmi.c
--- linux-2.6.26-Orig/sound/pci/hda/patch_nvhdmi.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.26-New/sound/pci/hda/patch_nvhdmi.c 2008-08-28 15:37:33.000000000 +0800
@@ -0,0 +1,379 @@
+/*
+ * 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 (c) 2008 Wei Ni <wni@xxxxxxxxxx>
+ *
+ *
+ * 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 <sound/asoundef.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+#include "hda_patch.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 */
+};
+
+static unsigned short convert_from_spdif_status_nv(unsigned int sbits)
+{
+ unsigned short val = 0;
+
+ if (sbits & IEC958_AES0_PROFESSIONAL)
+ val |= AC_DIG1_PROFESSIONAL;
+ if (sbits & IEC958_AES0_NONAUDIO)
+ val |= AC_DIG1_NONAUDIO;
+ if (sbits & IEC958_AES0_PROFESSIONAL) {
+ if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
+ IEC958_AES0_PRO_EMPHASIS_5015)
+ val |= AC_DIG1_EMPHASIS;
+ } else {
+ if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
+ IEC958_AES0_CON_EMPHASIS_5015)
+ val |= AC_DIG1_EMPHASIS;
+ if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
+ val |= AC_DIG1_COPYRIGHT;
+ if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
+ val |= AC_DIG1_LEVEL;
+ val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
+ }
+ return val;
+}
+
+static unsigned int convert_to_spdif_status_nv(unsigned short val)
+{
+ unsigned int sbits = 0;
+
+ if (val & AC_DIG1_NONAUDIO)
+ sbits |= IEC958_AES0_NONAUDIO;
+ if (val & AC_DIG1_PROFESSIONAL)
+ sbits |= IEC958_AES0_PROFESSIONAL;
+ if (sbits & IEC958_AES0_PROFESSIONAL) {
+ if (sbits & AC_DIG1_EMPHASIS)
+ sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
+ } else {
+ if (val & AC_DIG1_EMPHASIS)
+ sbits |= IEC958_AES0_CON_EMPHASIS_5015;
+ if (!(val & AC_DIG1_COPYRIGHT))
+ sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
+ if (val & AC_DIG1_LEVEL)
+ sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
+ sbits |= val & (0x7f << 8);
+ }
+ return sbits;
+}
+
+static int snd_hda_hdmi_cmask_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
+ IEC958_AES0_NONAUDIO |
+ IEC958_AES0_CON_EMPHASIS_5015 |
+ IEC958_AES0_CON_NOT_COPYRIGHT;
+ ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
+ IEC958_AES1_CON_ORIGINAL;
+ return 0;
+}
+
+static int snd_hda_hdmi_pmask_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
+ IEC958_AES0_NONAUDIO |
+ IEC958_AES0_PRO_EMPHASIS_5015;
+ return 0;
+}
+
+static int snd_hda_hdmi_mask_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+ uinfo->count = 1;
+ return 0;
+}
+
+static int snd_hda_hdmi_default_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
+ ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
+ ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
+ ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
+
+ return 0;
+}
+
+static int snd_hda_hdmi_default_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ hda_nid_t nid = kcontrol->private_value;
+ unsigned short val;
+ int change;
+
+ mutex_lock(&codec->spdif_mutex);
+ codec->spdif_status = ucontrol->value.iec958.status[0] |
+ ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
+ ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
+ ((unsigned int)ucontrol->value.iec958.status[3] << 24);
+ val = convert_from_spdif_status_nv(codec->spdif_status);
+ val |= codec->spdif_ctls & 1;
+ change = codec->spdif_ctls != val;
+ codec->spdif_ctls = val;
+
+ if (change) {
+ snd_hda_codec_write_cache(codec, nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_1,
+ val & 0xff);
+ snd_hda_codec_write_cache(codec, nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_2,
+ val >> 8);
+ }
+
+ mutex_unlock(&codec->spdif_mutex);
+ return change;
+}
+
+#define snd_hda_hdmi_out_switch_info snd_ctl_boolean_mono_info
+
+static int snd_hda_hdmi_out_switch_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
+ return 0;
+}
+
+static int snd_hda_hdmi_out_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ hda_nid_t nid = kcontrol->private_value;
+ unsigned short val;
+ int change;
+
+ mutex_lock(&codec->spdif_mutex);
+ val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
+ if (ucontrol->value.integer.value[0])
+ val |= AC_DIG1_ENABLE;
+ change = codec->spdif_ctls != val;
+ if (change) {
+ codec->spdif_ctls = val;
+ snd_hda_codec_write_cache(codec, nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_1,
+ val & 0xff);
+ /* unmute amp switch (if any) */
+ if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
+ (val & AC_DIG1_ENABLE))
+ snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
+ HDA_AMP_MUTE, 0);
+ }
+ mutex_unlock(&codec->spdif_mutex);
+ return change;
+}
+
+struct snd_kcontrol_new hdmi_mixes[] = {
+ {
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "IEC958 Playback Con Mask HDMI",
+ .info = snd_hda_hdmi_mask_info,
+ .get = snd_hda_hdmi_cmask_get,
+ },
+ {
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "IEC958 Playback Pro Mask HDMI",
+ .info = snd_hda_hdmi_mask_info,
+ .get = snd_hda_hdmi_pmask_get,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "IEC958 Playback Default HDMI",
+ .info = snd_hda_hdmi_mask_info,
+ .get = snd_hda_hdmi_default_get,
+ .put = snd_hda_hdmi_default_put,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "IEC958 Playback Switch HDMI",
+ .info = snd_hda_hdmi_out_switch_info,
+ .get = snd_hda_hdmi_out_switch_get,
+ .put = snd_hda_hdmi_out_switch_put,
+ },
+ {}
+};
+
+int snd_hda_create_hdmi_out_ctls(struct hda_codec *codec, hda_nid_t nid)
+{
+ int err;
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_new *dig_mix;
+
+ for (dig_mix = hdmi_mixes; dig_mix->name; dig_mix++) {
+ kctl = snd_ctl_new1(dig_mix, codec);
+ kctl->private_value = nid;
+ err = snd_ctl_add(codec->bus->card, kctl);
+ if (err < 0)
+ return err;
+ }
+ codec->spdif_ctls =
+ snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_DIGI_CONVERT_1, 0);
+ codec->spdif_status = convert_to_spdif_status_nv(codec->spdif_ctls);
+ return 0;
+}
+
+/*
+ * Controls
+ */
+static int nvhdmi_build_controls(struct hda_codec *codec)
+{
+ struct nvhdmi_spec *spec = codec->spec;
+ int err;
+
+ err = snd_hda_create_hdmi_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->pcm_type = HDA_PCM_TYPE_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 MCP78 HDMI", .patch = patch_nvhdmi },
+ { .id = 0x10de0007, .name = "Nvidia MCP7A HDMI", .patch = patch_nvhdmi },
+ {} /* terminator */
+};
diff -uprN -X linux-2.6.26-Orig/Documentation/dontdiff linux-2.6.26-Orig/sound/pci/Kconfig linux-2.6.26-New/sound/pci/Kconfig
--- linux-2.6.26-Orig/sound/pci/Kconfig 2008-08-28 13:47:20.000000000 +0800
+++ linux-2.6.26-New/sound/pci/Kconfig 2008-08-28 15:33:51.000000000 +0800
@@ -557,6 +557,14 @@ 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 MCP78 HDMI.
+
config SND_HDA_CODEC_CONEXANT
bool "Build Conexant HD-audio codec support"
depends on SND_HDA_INTEL
-
--
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