aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/soc-core.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/soc-core.c')
-rw-r--r--sound/soc/soc-core.c200
1 files changed, 166 insertions, 34 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4663de3cf495..9cfe10d8040c 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1,26 +1,21 @@
-/*
- * soc-core.c -- ALSA SoC Audio Layer
- *
- * Copyright 2005 Wolfson Microelectronics PLC.
- * Copyright 2005 Openedhand Ltd.
- * Copyright (C) 2010 Slimlogic Ltd.
- * Copyright (C) 2010 Texas Instruments Inc.
- *
- * Author: Liam Girdwood <lrg@slimlogic.co.uk>
- * with code, comments and ideas from :-
- * Richard Purdie <richard@openedhand.com>
- *
- * This program 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.
- *
- * TODO:
- * o Add hw rules to enforce rates, etc.
- * o More testing with other codecs/machines.
- * o Add more codecs and platforms to ensure good API coverage.
- * o Support TDM on PCM and I2S
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// soc-core.c -- ALSA SoC Audio Layer
+//
+// Copyright 2005 Wolfson Microelectronics PLC.
+// Copyright 2005 Openedhand Ltd.
+// Copyright (C) 2010 Slimlogic Ltd.
+// Copyright (C) 2010 Texas Instruments Inc.
+//
+// Author: Liam Girdwood <lrg@slimlogic.co.uk>
+// with code, comments and ideas from :-
+// Richard Purdie <richard@openedhand.com>
+//
+// TODO:
+// o Add hw rules to enforce rates, etc.
+// o More testing with other codecs/machines.
+// o Add more codecs and platforms to ensure good API coverage.
+// o Support TDM on PCM and I2S
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -533,6 +528,7 @@ int snd_soc_suspend(struct device *dev)
"ASoC: idle_bias_off CODEC on over suspend\n");
break;
}
+ /* fall through */
case SND_SOC_BIAS_OFF:
if (component->driver->suspend)
@@ -852,6 +848,9 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
const char *platform_name;
int i;
+ if (dai_link->ignore)
+ return 0;
+
dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name);
if (soc_is_dai_link_bound(card, dai_link)) {
@@ -1195,15 +1194,27 @@ void snd_soc_remove_dai_link(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link);
+static void soc_set_of_name_prefix(struct snd_soc_component *component)
+{
+ struct device_node *component_of_node = component->dev->of_node;
+ const char *str;
+ int ret;
+
+ if (!component_of_node && component->dev->parent)
+ component_of_node = component->dev->parent->of_node;
+
+ ret = of_property_read_string(component_of_node, "sound-name-prefix",
+ &str);
+ if (!ret)
+ component->name_prefix = str;
+}
+
static void soc_set_name_prefix(struct snd_soc_card *card,
struct snd_soc_component *component)
{
int i;
- if (card->codec_conf == NULL)
- return;
-
- for (i = 0; i < card->num_configs; i++) {
+ for (i = 0; i < card->num_configs && card->codec_conf; i++) {
struct snd_soc_codec_conf *map = &card->codec_conf[i];
struct device_node *component_of_node = component->dev->of_node;
@@ -1215,8 +1226,14 @@ static void soc_set_name_prefix(struct snd_soc_card *card,
if (map->dev_name && strcmp(component->name, map->dev_name))
continue;
component->name_prefix = map->name_prefix;
- break;
+ return;
}
+
+ /*
+ * If there is no configuration table or no match in the table,
+ * check if a prefix is provided in the node
+ */
+ soc_set_of_name_prefix(component);
}
static int soc_probe_component(struct snd_soc_card *card,
@@ -1461,7 +1478,9 @@ static int soc_probe_link_dais(struct snd_soc_card *card,
{
struct snd_soc_dai_link *dai_link = rtd->dai_link;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- int i, ret;
+ struct snd_soc_rtdcom_list *rtdcom;
+ struct snd_soc_component *component;
+ int i, ret, num;
dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
card->name, rtd->num, order);
@@ -1507,9 +1526,28 @@ static int soc_probe_link_dais(struct snd_soc_card *card,
soc_dpcm_debugfs_add(rtd);
#endif
+ num = rtd->num;
+
+ /*
+ * most drivers will register their PCMs using DAI link ordering but
+ * topology based drivers can use the DAI link id field to set PCM
+ * device number and then use rtd + a base offset of the BEs.
+ */
+ for_each_rtdcom(rtd, rtdcom) {
+ component = rtdcom->component;
+
+ if (!component->driver->use_dai_pcm_id)
+ continue;
+
+ if (rtd->dai_link->no_pcm)
+ num += component->driver->be_pcm_base;
+ else
+ num = rtd->dai_link->id;
+ }
+
if (cpu_dai->driver->compress_new) {
/*create compress_device"*/
- ret = cpu_dai->driver->compress_new(rtd, rtd->num);
+ ret = cpu_dai->driver->compress_new(rtd, num);
if (ret < 0) {
dev_err(card->dev, "ASoC: can't create compress %s\n",
dai_link->stream_name);
@@ -1519,7 +1557,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card,
if (!dai_link->params) {
/* create the pcm */
- ret = soc_new_pcm(rtd, rtd->num);
+ ret = soc_new_pcm(rtd, num);
if (ret < 0) {
dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
dai_link->stream_name, ret);
@@ -1846,6 +1884,74 @@ int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour)
EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name);
#endif /* CONFIG_DMI */
+static void soc_check_tplg_fes(struct snd_soc_card *card)
+{
+ struct snd_soc_component *component;
+ const struct snd_soc_component_driver *comp_drv;
+ struct snd_soc_dai_link *dai_link;
+ int i;
+
+ list_for_each_entry(component, &component_list, list) {
+
+ /* does this component override FEs ? */
+ if (!component->driver->ignore_machine)
+ continue;
+
+ /* for this machine ? */
+ if (strcmp(component->driver->ignore_machine,
+ card->dev->driver->name))
+ continue;
+
+ /* machine matches, so override the rtd data */
+ for (i = 0; i < card->num_links; i++) {
+
+ dai_link = &card->dai_link[i];
+
+ /* ignore this FE */
+ if (dai_link->dynamic) {
+ dai_link->ignore = true;
+ continue;
+ }
+
+ dev_info(card->dev, "info: override FE DAI link %s\n",
+ card->dai_link[i].name);
+
+ /* override platform component */
+ dai_link->platform_name = component->name;
+
+ /* convert non BE into BE */
+ dai_link->no_pcm = 1;
+
+ /* override any BE fixups */
+ dai_link->be_hw_params_fixup =
+ component->driver->be_hw_params_fixup;
+
+ /* most BE links don't set stream name, so set it to
+ * dai link name if it's NULL to help bind widgets.
+ */
+ if (!dai_link->stream_name)
+ dai_link->stream_name = dai_link->name;
+ }
+
+ /* Inform userspace we are using alternate topology */
+ if (component->driver->topology_name_prefix) {
+
+ /* topology shortname created ? */
+ if (!card->topology_shortname_created) {
+ comp_drv = component->driver;
+
+ snprintf(card->topology_shortname, 32, "%s-%s",
+ comp_drv->topology_name_prefix,
+ card->name);
+ card->topology_shortname_created = true;
+ }
+
+ /* use topology shortname */
+ card->name = card->topology_shortname;
+ }
+ }
+}
+
static int snd_soc_instantiate_card(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd;
@@ -1855,6 +1961,9 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
mutex_lock(&client_mutex);
mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
+ /* check whether any platform is ignore machine FE and using topology */
+ soc_check_tplg_fes(card);
+
/* bind DAIs */
for (i = 0; i < card->num_links; i++) {
ret = soc_bind_dai_link(card, &card->dai_link[i]);
@@ -2523,6 +2632,28 @@ int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
/**
+ * snd_soc_dai_get_channel_map - Get DAI audio channel map
+ * @dai: DAI
+ * @tx_num: how many TX channels
+ * @tx_slot: pointer to an array which imply the TX slot number channel
+ * 0~num-1 uses
+ * @rx_num: how many RX channels
+ * @rx_slot: pointer to an array which imply the RX slot number channel
+ * 0~num-1 uses
+ */
+int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
+ unsigned int *tx_num, unsigned int *tx_slot,
+ unsigned int *rx_num, unsigned int *rx_slot)
+{
+ if (dai->driver->ops->get_channel_map)
+ return dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
+ rx_num, rx_slot);
+ else
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
+
+/**
* snd_soc_dai_set_tristate - configure DAI system or master clock.
* @dai: DAI
* @tristate: tristate enable
@@ -3258,9 +3389,9 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets);
-static int snd_soc_of_get_slot_mask(struct device_node *np,
- const char *prop_name,
- unsigned int *mask)
+int snd_soc_of_get_slot_mask(struct device_node *np,
+ const char *prop_name,
+ unsigned int *mask)
{
u32 val;
const __be32 *of_slot_mask = of_get_property(np, prop_name, &val);
@@ -3275,6 +3406,7 @@ static int snd_soc_of_get_slot_mask(struct device_node *np,
return val;
}
+EXPORT_SYMBOL_GPL(snd_soc_of_get_slot_mask);
int snd_soc_of_parse_tdm_slot(struct device_node *np,
unsigned int *tx_mask,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.