const char *name; /* Codec name */
const char *stream_name; /* Stream name */
- /*
- * cpu_name
- * cpu_of_node
- * cpu_dai_name
- *
- * These are legacy style, and will be replaced to
- * modern style (= snd_soc_dai_link_component) in the future,
- * but, not yet supported so far.
- * If modern style was supported for CPU, all driver will switch
- * to use it, and, legacy style code will be removed from ALSA SoC.
- */
/*
* You MAY specify the link's CPU-side device, either by device name,
* or by DT/OF node, but not both. If this information is omitted,
* must be globally unique. These fields are currently typically used
* only for codec to codec links, or systems using device tree.
*/
- const char *cpu_name;
- struct device_node *cpu_of_node;
/*
* You MAY specify the DAI name of the CPU DAI. If this information is
* omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
* only, which only works well when that device exposes a single DAI.
*/
- const char *cpu_dai_name;
-
struct snd_soc_dai_link_component *cpus;
unsigned int num_cpus;
- /*
- * codec_name
- * codec_of_node
- * codec_dai_name
- *
- * These are legacy style, it will be converted to modern style
- * (= snd_soc_dai_link_component) automatically in soc-core
- * if driver is using legacy style.
- * Driver shouldn't use both legacy and modern style in the same time.
- * If modern style was supported for CPU, all driver will switch
- * to use it, and, legacy style code will be removed from ALSA SoC.
- */
/*
* You MUST specify the link's codec, either by device name, or by
* DT/OF node, but not both.
*/
- const char *codec_name;
- struct device_node *codec_of_node;
/* You MUST specify the DAI name within the codec */
- const char *codec_dai_name;
-
struct snd_soc_dai_link_component *codecs;
unsigned int num_codecs;
- /*
- * platform_name
- * platform_of_node
- *
- * These are legacy style, it will be converted to modern style
- * (= snd_soc_dai_link_component) automatically in soc-core
- * if driver is using legacy style.
- * Driver shouldn't use both legacy and modern style in the same time.
- * If modern style was supported for CPU, all driver will switch
- * to use it, and, legacy style code will be removed from ALSA SoC.
- */
/*
* You MAY specify the link's platform/PCM/DMA driver, either by
* device name, or by DT/OF node, but not both. Some forms of link
* do not need a platform.
*/
- const char *platform_name;
- struct device_node *platform_of_node;
struct snd_soc_dai_link_component *platforms;
unsigned int num_platforms;
/* Do not create a PCM for this DAI link (Backend link) */
unsigned int ignore:1;
- /*
- * This driver uses legacy platform naming. Set by the core, machine
- * drivers should not modify this value.
- */
- unsigned int legacy_platform:1;
- unsigned int legacy_cpu:1;
-
struct list_head list; /* DAI link list of the soc card */
struct snd_soc_dobj dobj; /* For topology */
};
if (!name)
return -ENOMEM;
- if (dai_link->platforms)
- /* only single platform is supported for now */
- dai_link->platforms->name = name;
- else
- /*
- * legacy mode, this case will be removed when all
- * derivers are switched to modern style dai_link.
- */
- dai_link->platform_name = name;
+ if (!dai_link->platforms)
+ return -EINVAL;
+
+ /* only single platform is supported for now */
+ dai_link->platforms->name = name;
}
return 0;
}
}
-static int snd_soc_init_cpu(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
-{
- struct snd_soc_dai_link_component *cpu = dai_link->cpus;
-
- /*
- * REMOVE ME
- *
- * This is glue code for Legacy vs Modern dai_link.
- * This function will be removed if all derivers are switched to
- * modern style dai_link.
- * Driver shouldn't use both legacy and modern style in the same time.
- * see
- * soc.h :: struct snd_soc_dai_link
- */
- /* convert Legacy platform link */
- if (!cpu) {
- cpu = devm_kzalloc(card->dev,
- sizeof(struct snd_soc_dai_link_component),
- GFP_KERNEL);
- if (!cpu)
- return -ENOMEM;
-
- dai_link->cpus = cpu;
- dai_link->num_cpus = 1;
- dai_link->legacy_cpu = 1;
-
- cpu->name = dai_link->cpu_name;
- cpu->of_node = dai_link->cpu_of_node;
- cpu->dai_name = dai_link->cpu_dai_name;
- }
-
- if (!dai_link->cpus) {
- dev_err(card->dev, "ASoC: DAI link has no CPUs\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int snd_soc_init_platform(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
-{
- struct snd_soc_dai_link_component *platform = dai_link->platforms;
-
- /*
- * REMOVE ME
- *
- * This is glue code for Legacy vs Modern dai_link.
- * This function will be removed if all derivers are switched to
- * modern style dai_link.
- * Driver shouldn't use both legacy and modern style in the same time.
- * see
- * soc.h :: struct snd_soc_dai_link
- */
- /* convert Legacy platform link */
- if (!platform) {
- platform = devm_kzalloc(card->dev,
- sizeof(struct snd_soc_dai_link_component),
- GFP_KERNEL);
- if (!platform)
- return -ENOMEM;
-
- dai_link->platforms = platform;
- dai_link->num_platforms = 1;
- dai_link->legacy_platform = 1;
- platform->name = dai_link->platform_name;
- platform->of_node = dai_link->platform_of_node;
- platform->dai_name = NULL;
- }
-
- /* if there's no platform we match on the empty platform */
- if (!platform->name &&
- !platform->of_node)
- platform->name = "snd-soc-dummy";
-
- return 0;
-}
-
-static void soc_cleanup_legacy(struct snd_soc_card *card)
-{
- struct snd_soc_dai_link *link;
- int i;
- /*
- * FIXME
- *
- * this function should be removed with snd_soc_init_platform
- */
-
- for_each_card_prelinks(card, i, link) {
- if (link->legacy_platform) {
- link->legacy_platform = 0;
- link->platforms = NULL;
- }
- if (link->legacy_cpu) {
- link->legacy_cpu = 0;
- link->cpus = NULL;
- }
- }
-}
-
-static int snd_soc_init_multicodec(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
-{
- /*
- * REMOVE ME
- *
- * This is glue code for Legacy vs Modern dai_link.
- * This function will be removed if all derivers are switched to
- * modern style dai_link.
- * Driver shouldn't use both legacy and modern style in the same time.
- * see
- * soc.h :: struct snd_soc_dai_link
- */
-
- /* Legacy codec/codec_dai link is a single entry in multicodec */
- if (dai_link->codec_name || dai_link->codec_of_node ||
- dai_link->codec_dai_name) {
- dai_link->num_codecs = 1;
-
- dai_link->codecs = devm_kzalloc(card->dev,
- sizeof(struct snd_soc_dai_link_component),
- GFP_KERNEL);
- if (!dai_link->codecs)
- return -ENOMEM;
-
- dai_link->codecs[0].name = dai_link->codec_name;
- dai_link->codecs[0].of_node = dai_link->codec_of_node;
- dai_link->codecs[0].dai_name = dai_link->codec_dai_name;
- }
-
- if (!dai_link->codecs) {
- dev_err(card->dev, "ASoC: DAI link has no CODECs\n");
- return -EINVAL;
- }
-
- return 0;
-}
+static struct snd_soc_dai_link_component dummy_link = COMP_DUMMY();
static int soc_init_dai_link(struct snd_soc_card *card,
struct snd_soc_dai_link *link)
{
- int i, ret;
+ int i;
struct snd_soc_dai_link_component *codec;
- ret = snd_soc_init_cpu(card, link);
- if (ret) {
- dev_err(card->dev, "ASoC: failed to init cpu\n");
- return ret;
- }
-
- ret = snd_soc_init_platform(card, link);
- if (ret) {
- dev_err(card->dev, "ASoC: failed to init multiplatform\n");
- return ret;
- }
-
- ret = snd_soc_init_multicodec(card, link);
- if (ret) {
- dev_err(card->dev, "ASoC: failed to init multicodec\n");
- return ret;
+ /* default Platform */
+ if (!link->platforms || !link->num_platforms) {
+ link->platforms = &dummy_link;
+ link->num_platforms = 1;
}
for_each_link_codecs(link, i, codec) {
card->dai_link[i].name);
/* override platform component */
- if (snd_soc_init_platform(card, dai_link) < 0) {
+ if (!dai_link->platforms) {
dev_err(card->dev, "init platform error");
continue;
}
/* remove and free each DAI */
soc_remove_dai_links(card);
soc_remove_pcm_runtimes(card);
- soc_cleanup_legacy(card);
/* remove auxiliary devices */
soc_remove_aux_devices(card);
ret = soc_init_dai_link(card, link);
if (ret) {
- soc_cleanup_legacy(card);
dev_err(card->dev, "ASoC: failed to init link %s\n",
link->name);
mutex_unlock(&client_mutex);
projects / linux-2.6-microblaze.git / commitdiff