snd_array_free(&codec->init_pins);
}
+/*
+ * audio-converter setup caches
+ */
+struct hda_cvt_setup {
+ hda_nid_t nid;
+ u8 stream_tag;
+ u8 channel_id;
+ u16 format_id;
+ unsigned char active; /* cvt is currently used */
+ unsigned char dirty; /* setups should be cleared */
+};
+
+/* get or create a cache entry for the given audio converter NID */
+static struct hda_cvt_setup *
+get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
+{
+ struct hda_cvt_setup *p;
+ int i;
+
+ for (i = 0; i < codec->cvt_setups.used; i++) {
+ p = snd_array_elem(&codec->cvt_setups, i);
+ if (p->nid == nid)
+ return p;
+ }
+ p = snd_array_new(&codec->cvt_setups);
+ if (p)
+ p->nid = nid;
+ return p;
+}
+
/*
* codec destructor
*/
codec->addr = codec_addr;
mutex_init(&codec->spdif_mutex);
mutex_init(&codec->control_mutex);
+ mutex_init(&codec->prepare_mutex);
init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
+ snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
if (codec->bus->modelname) {
codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
if (!codec->modelname) {
u32 stream_tag,
int channel_id, int format)
{
+ struct hda_cvt_setup *p;
+ unsigned int oldval, newval;
+ int i;
+
if (!nid)
return;
snd_printdd("hda_codec_setup_stream: "
"NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
nid, stream_tag, channel_id, format);
- snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
- (stream_tag << 4) | channel_id);
- msleep(1);
- snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
+ p = get_hda_cvt_setup(codec, nid);
+ if (!p)
+ return;
+ /* update the stream-id if changed */
+ if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
+ oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
+ newval = (stream_tag << 4) | channel_id;
+ if (oldval != newval)
+ snd_hda_codec_write(codec, nid, 0,
+ AC_VERB_SET_CHANNEL_STREAMID,
+ newval);
+ p->stream_tag = stream_tag;
+ p->channel_id = channel_id;
+ }
+ /* update the format-id if changed */
+ if (p->format_id != format) {
+ oldval = snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_STREAM_FORMAT, 0);
+ if (oldval != format) {
+ msleep(1);
+ snd_hda_codec_write(codec, nid, 0,
+ AC_VERB_SET_STREAM_FORMAT,
+ format);
+ }
+ p->format_id = format;
+ }
+ p->active = 1;
+ p->dirty = 0;
+
+ /* make other inactive cvts with the same stream-tag dirty */
+ for (i = 0; i < codec->cvt_setups.used; i++) {
+ p = snd_array_elem(&codec->cvt_setups, i);
+ if (!p->active && p->stream_tag == stream_tag)
+ p->dirty = 1;
+ }
}
EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
*/
void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
{
+ struct hda_cvt_setup *p;
+
if (!nid)
return;
snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid);
+ /* here we just clear the active flag; actual clean-ups will be done
+ * in purify_inactive_streams()
+ */
+ p = get_hda_cvt_setup(codec, nid);
+ if (p)
+ p->active = 0;
+}
+EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
+
+static void really_cleanup_stream(struct hda_codec *codec,
+ struct hda_cvt_setup *q)
+{
+ hda_nid_t nid = q->nid;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
-#if 0 /* keep the format */
- msleep(1);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0);
-#endif
+ memset(q, 0, sizeof(*q));
+ q->nid = nid;
+}
+
+/* clean up the all conflicting obsolete streams */
+static void purify_inactive_streams(struct hda_codec *codec)
+{
+ int i;
+
+ for (i = 0; i < codec->cvt_setups.used; i++) {
+ struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
+ if (p->dirty)
+ really_cleanup_stream(codec, p);
+ }
+}
+
+/* clean up all streams; called from suspend */
+static void hda_cleanup_all_streams(struct hda_codec *codec)
+{
+ int i;
+
+ for (i = 0; i < codec->cvt_setups.used; i++) {
+ struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
+ if (p->stream_tag)
+ really_cleanup_stream(codec, p);
+ }
}
-EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
/*
* amp access functions
{
if (codec->patch_ops.suspend)
codec->patch_ops.suspend(codec, PMSG_SUSPEND);
+ hda_cleanup_all_streams(codec);
hda_set_power_state(codec,
codec->afg ? codec->afg : codec->mfg,
AC_PWRST_D3);
return 0;
}
+/*
+ * codec prepare/cleanup entries
+ */
+int snd_hda_codec_prepare(struct hda_codec *codec,
+ struct hda_pcm_stream *hinfo,
+ unsigned int stream,
+ unsigned int format,
+ struct snd_pcm_substream *substream)
+{
+ int ret;
+ mutex_lock(&codec->prepare_mutex);
+ ret = hinfo->ops.prepare(hinfo, codec, stream, format, substream);
+ if (ret >= 0)
+ purify_inactive_streams(codec);
+ mutex_unlock(&codec->prepare_mutex);
+ return ret;
+}
+EXPORT_SYMBOL_HDA(snd_hda_codec_prepare);
+
+void snd_hda_codec_cleanup(struct hda_codec *codec,
+ struct hda_pcm_stream *hinfo,
+ struct snd_pcm_substream *substream)
+{
+ mutex_lock(&codec->prepare_mutex);
+ hinfo->ops.cleanup(hinfo, codec, substream);
+ mutex_unlock(&codec->prepare_mutex);
+}
+EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup);
+
/* global */
const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
"Audio", "SPDIF", "HDMI", "Modem"
projects / cascardo / linux.git / blobdiff