Initial dump of hda from maverick kernel Ubuntu-2.6.35-23.36

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 224 insertions, 0 deletions

diff --git a/usr/src/dkms_source_tree/patch_atihdmi.c b/usr/src/dkms_source_tree/patch_atihdmi.c
new file mode 100644
index 0000000..fb684f0
--- /dev/null
+++ b/usr/src/dkms_source_tree/patch_atihdmi.c
@@ -0,0 +1,224 @@
+/*
+ * Universal Interface for Intel High Definition Audio Codec
+ *
+ * HD audio interface patch for ATI HDMI codecs
+ *
+ * Copyright (c) 2006 ATI Technologies Inc.
+ *
+ *
+ *  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 atihdmi_spec {
+        struct hda_multi_out multiout;
+
+        struct hda_pcm pcm_rec;
+};
+
+#define CVT_NID         0x02    /* audio converter */
+#define PIN_NID         0x03    /* HDMI output pin */
+
+static struct hda_verb atihdmi_basic_init[] = {
+        /* enable digital output on pin widget */
+        { 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
+        {} /* terminator */
+};
+
+/*
+ * Controls
+ */
+static int atihdmi_build_controls(struct hda_codec *codec)
+{
+        struct atihdmi_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 atihdmi_init(struct hda_codec *codec)
+{
+        snd_hda_sequence_write(codec, atihdmi_basic_init);
+        /* SI codec requires to unmute the pin */
+        if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
+                snd_hda_codec_write(codec, PIN_NID, 0,
+                                    AC_VERB_SET_AMP_GAIN_MUTE,
+                                    AMP_OUT_UNMUTE);
+        return 0;
+}
+
+/*
+ * Digital out
+ */
+static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
+                                     struct hda_codec *codec,
+                                     struct snd_pcm_substream *substream)
+{
+        struct atihdmi_spec *spec = codec->spec;
+        return snd_hda_multi_out_dig_open(codec, &spec->multiout);
+}
+
+static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
+                                      struct hda_codec *codec,
+                                      struct snd_pcm_substream *substream)
+{
+        struct atihdmi_spec *spec = codec->spec;
+        return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int atihdmi_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 atihdmi_spec *spec = codec->spec;
+        int chans = substream->runtime->channels;
+        int i, err;
+
+        err = snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
+                                            format, substream);
+        if (err < 0)
+                return err;
+        snd_hda_codec_write(codec, CVT_NID, 0, AC_VERB_SET_CVT_CHAN_COUNT,
+                            chans - 1);
+        /* FIXME: XXX */
+        for (i = 0; i < chans; i++) {
+                snd_hda_codec_write(codec, CVT_NID, 0,
+                                    AC_VERB_SET_HDMI_CHAN_SLOT,
+                                    (i << 4) | i);
+        }
+        return 0;
+}
+
+static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
+        .substreams = 1,
+        .channels_min = 2,
+        .channels_max = 2,
+        .nid = CVT_NID, /* NID to query formats and rates and setup streams */
+        .ops = {
+                .open = atihdmi_dig_playback_pcm_open,
+                .close = atihdmi_dig_playback_pcm_close,
+                .prepare = atihdmi_dig_playback_pcm_prepare
+        },
+};
+
+static int atihdmi_build_pcms(struct hda_codec *codec)
+{
+        struct atihdmi_spec *spec = codec->spec;
+        struct hda_pcm *info = &spec->pcm_rec;
+        unsigned int chans;
+
+        codec->num_pcms = 1;
+        codec->pcm_info = info;
+
+        info->name = "ATI HDMI";
+        info->pcm_type = HDA_PCM_TYPE_HDMI;
+        info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
+
+        /* FIXME: we must check ELD and change the PCM parameters dynamically
+         */
+        chans = get_wcaps(codec, CVT_NID);
+        chans = get_wcaps_channels(chans);
+        info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = chans;
+
+        return 0;
+}
+
+static void atihdmi_free(struct hda_codec *codec)
+{
+        kfree(codec->spec);
+}
+
+static struct hda_codec_ops atihdmi_patch_ops = {
+        .build_controls = atihdmi_build_controls,
+        .build_pcms = atihdmi_build_pcms,
+        .init = atihdmi_init,
+        .free = atihdmi_free,
+};
+
+static int patch_atihdmi(struct hda_codec *codec)
+{
+        struct atihdmi_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;
+        /* NID for copying analog to digital,
+         * seems to be unused in pure-digital
+         * case.
+         */
+        spec->multiout.dig_out_nid = CVT_NID;
+
+        codec->patch_ops = atihdmi_patch_ops;
+
+        return 0;
+}
+
+/*
+ * patch entries
+ */
+static struct hda_codec_preset snd_hda_preset_atihdmi[] = {
+        { .id = 0x1002793c, .name = "RS600 HDMI", .patch = patch_atihdmi },
+        { .id = 0x10027919, .name = "RS600 HDMI", .patch = patch_atihdmi },
+        { .id = 0x1002791a, .name = "RS690/780 HDMI", .patch = patch_atihdmi },
+        { .id = 0x1002aa01, .name = "R6xx HDMI", .patch = patch_atihdmi },
+        { .id = 0x10951390, .name = "SiI1390 HDMI", .patch = patch_atihdmi },
+        { .id = 0x17e80047, .name = "Chrontel HDMI",  .patch = patch_atihdmi },
+        {} /* terminator */
+};
+
+MODULE_ALIAS("snd-hda-codec-id:1002793c");
+MODULE_ALIAS("snd-hda-codec-id:10027919");
+MODULE_ALIAS("snd-hda-codec-id:1002791a");
+MODULE_ALIAS("snd-hda-codec-id:1002aa01");
+MODULE_ALIAS("snd-hda-codec-id:10951390");
+MODULE_ALIAS("snd-hda-codec-id:17e80047");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ATI HDMI HD-audio codec");
+
+static struct hda_codec_preset_list atihdmi_list = {
+        .preset = snd_hda_preset_atihdmi,
+        .owner = THIS_MODULE,
+};
+
+static int __init patch_atihdmi_init(void)
+{
+        return snd_hda_add_codec_preset(&atihdmi_list);
+}
+
+static void __exit patch_atihdmi_exit(void)
+{
+        snd_hda_delete_codec_preset(&atihdmi_list);
+}
+
+module_init(patch_atihdmi_init)
+module_exit(patch_atihdmi_exit)