forked from Minki/linux
82beb8fd36
So far, the driver looked the table of snd_kcontrol_new used for creating mixer elements and forces to call each of its put callbacks in PM resume code. This is too ugly and hackish. Now, the resume is simplified using the codec amp and command register caches. The driver simply restores the values that have been written in the cache table. With this simplification, most codec support codes don't require any special resume callback. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
164 lines
4.2 KiB
C
164 lines
4.2 KiB
C
/*
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* Universal Interface for Intel High Definition Audio Codec
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*
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* HD audio interface patch for ATI HDMI codecs
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*
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* Copyright (c) 2006 ATI Technologies Inc.
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*
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include "hda_codec.h"
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#include "hda_local.h"
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struct atihdmi_spec {
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struct hda_multi_out multiout;
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struct hda_pcm pcm_rec;
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};
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static struct hda_verb atihdmi_basic_init[] = {
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/* enable digital output on pin widget */
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{ 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
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{} /* terminator */
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};
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/*
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* Controls
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*/
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static int atihdmi_build_controls(struct hda_codec *codec)
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{
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struct atihdmi_spec *spec = codec->spec;
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int err;
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err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
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if (err < 0)
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return err;
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return 0;
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}
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static int atihdmi_init(struct hda_codec *codec)
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{
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snd_hda_sequence_write(codec, atihdmi_basic_init);
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return 0;
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}
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/*
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* Digital out
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*/
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static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
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struct hda_codec *codec,
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struct snd_pcm_substream *substream)
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{
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struct atihdmi_spec *spec = codec->spec;
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return snd_hda_multi_out_dig_open(codec, &spec->multiout);
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}
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static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
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struct hda_codec *codec,
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struct snd_pcm_substream *substream)
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{
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struct atihdmi_spec *spec = codec->spec;
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return snd_hda_multi_out_dig_close(codec, &spec->multiout);
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}
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static int atihdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
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struct hda_codec *codec,
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unsigned int stream_tag,
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unsigned int format,
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struct snd_pcm_substream *substream)
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{
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struct atihdmi_spec *spec = codec->spec;
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return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
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format, substream);
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}
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static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
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.substreams = 1,
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.channels_min = 2,
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.channels_max = 2,
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.nid = 0x2, /* NID to query formats and rates and setup streams */
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.ops = {
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.open = atihdmi_dig_playback_pcm_open,
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.close = atihdmi_dig_playback_pcm_close,
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.prepare = atihdmi_dig_playback_pcm_prepare
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},
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};
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static int atihdmi_build_pcms(struct hda_codec *codec)
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{
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struct atihdmi_spec *spec = codec->spec;
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struct hda_pcm *info = &spec->pcm_rec;
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codec->num_pcms = 1;
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codec->pcm_info = info;
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info->name = "ATI HDMI";
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info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
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return 0;
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}
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static void atihdmi_free(struct hda_codec *codec)
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{
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kfree(codec->spec);
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}
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static struct hda_codec_ops atihdmi_patch_ops = {
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.build_controls = atihdmi_build_controls,
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.build_pcms = atihdmi_build_pcms,
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.init = atihdmi_init,
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.free = atihdmi_free,
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};
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static int patch_atihdmi(struct hda_codec *codec)
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{
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struct atihdmi_spec *spec;
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spec = kzalloc(sizeof(*spec), GFP_KERNEL);
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if (spec == NULL)
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return -ENOMEM;
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codec->spec = spec;
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spec->multiout.num_dacs = 0; /* no analog */
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spec->multiout.max_channels = 2;
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spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
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* seems to be unused in pure-digital
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* case. */
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codec->patch_ops = atihdmi_patch_ops;
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return 0;
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}
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/*
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* patch entries
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*/
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struct hda_codec_preset snd_hda_preset_atihdmi[] = {
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{ .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
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{ .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
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{ .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
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{ .id = 0x1002aa01, .name = "ATI R600 HDMI", .patch = patch_atihdmi },
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{} /* terminator */
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};
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