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author | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 14:45:25 -0500 |
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committer | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 14:45:25 -0500 |
commit | fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204 (patch) | |
tree | 22962a4387943edc841c72a4e636a068c66d58fd /sound/pci/hda/patch_atihdmi.c | |
download | ast2050-linux-kernel-fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204.zip ast2050-linux-kernel-fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204.tar.gz |
Initial import of modified Linux 2.6.28 tree
Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y
Diffstat (limited to 'sound/pci/hda/patch_atihdmi.c')
-rw-r--r-- | sound/pci/hda/patch_atihdmi.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_atihdmi.c b/sound/pci/hda/patch_atihdmi.c new file mode 100644 index 0000000..ba61575 --- /dev/null +++ b/sound/pci/hda/patch_atihdmi.c @@ -0,0 +1,199 @@ +/* + * 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" +#include "hda_patch.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 = (chans & AC_WCAP_CHAN_CNT_EXT) >> 13; + chans = ((chans << 1) | 1) + 1; + 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 + */ +struct hda_codec_preset snd_hda_preset_atihdmi[] = { + { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi }, + { .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi }, + { .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi }, + { .id = 0x1002aa01, .name = "ATI R6xx HDMI", .patch = patch_atihdmi }, + { .id = 0x10951390, .name = "SiI1390 HDMI", .patch = patch_atihdmi }, + { .id = 0x10951392, .name = "SiI1392 HDMI", .patch = patch_atihdmi }, + { .id = 0x17e80047, .name = "Chrontel HDMI", .patch = patch_atihdmi }, + {} /* terminator */ +}; |