From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/sound/soc/meson/axg-card.c | 464 ++++++++++-----------------------------------------------
1 files changed, 84 insertions(+), 380 deletions(-)
diff --git a/kernel/sound/soc/meson/axg-card.c b/kernel/sound/soc/meson/axg-card.c
index 2914ba0..2b77010 100644
--- a/kernel/sound/soc/meson/axg-card.c
+++ b/kernel/sound/soc/meson/axg-card.c
@@ -9,11 +9,7 @@
#include <sound/soc-dai.h>
#include "axg-tdm.h"
-
-struct axg_card {
- struct snd_soc_card card;
- void **link_data;
-};
+#include "meson-card.h"
struct axg_dai_link_tdm_mask {
u32 tx;
@@ -29,159 +25,27 @@
struct axg_dai_link_tdm_mask *codec_masks;
};
-#define PREFIX "amlogic,"
-
-static int axg_card_reallocate_links(struct axg_card *priv,
- unsigned int num_links)
-{
- struct snd_soc_dai_link *links;
- void **ldata;
-
- links = krealloc(priv->card.dai_link,
- num_links * sizeof(*priv->card.dai_link),
- GFP_KERNEL | __GFP_ZERO);
- ldata = krealloc(priv->link_data,
- num_links * sizeof(*priv->link_data),
- GFP_KERNEL | __GFP_ZERO);
-
- if (!links || !ldata) {
- dev_err(priv->card.dev, "failed to allocate links\n");
- return -ENOMEM;
- }
-
- priv->card.dai_link = links;
- priv->link_data = ldata;
- priv->card.num_links = num_links;
- return 0;
-}
-
-static int axg_card_parse_dai(struct snd_soc_card *card,
- struct device_node *node,
- struct device_node **dai_of_node,
- const char **dai_name)
-{
- struct of_phandle_args args;
- int ret;
-
- if (!dai_name || !dai_of_node || !node)
- return -EINVAL;
-
- ret = of_parse_phandle_with_args(node, "sound-dai",
- "#sound-dai-cells", 0, &args);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(card->dev, "can't parse dai %d\n", ret);
- return ret;
- }
- *dai_of_node = args.np;
-
- return snd_soc_get_dai_name(&args, dai_name);
-}
-
-static int axg_card_set_link_name(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- const char *prefix)
-{
- char *name = devm_kasprintf(card->dev, GFP_KERNEL, "%s.%s",
- prefix, link->cpu_of_node->full_name);
- if (!name)
- return -ENOMEM;
-
- link->name = name;
- link->stream_name = name;
-
- return 0;
-}
-
-static void axg_card_clean_references(struct axg_card *priv)
-{
- struct snd_soc_card *card = &priv->card;
- struct snd_soc_dai_link *link;
- int i, j;
-
- if (card->dai_link) {
- for (i = 0; i < card->num_links; i++) {
- link = &card->dai_link[i];
- of_node_put(link->cpu_of_node);
- for (j = 0; j < link->num_codecs; j++)
- of_node_put(link->codecs[j].of_node);
- }
- }
-
- if (card->aux_dev) {
- for (i = 0; i < card->num_aux_devs; i++)
- of_node_put(card->aux_dev[i].codec_of_node);
- }
-
- kfree(card->dai_link);
- kfree(priv->link_data);
-}
-
-static int axg_card_add_aux_devices(struct snd_soc_card *card)
-{
- struct device_node *node = card->dev->of_node;
- struct snd_soc_aux_dev *aux;
- int num, i;
-
- num = of_count_phandle_with_args(node, "audio-aux-devs", NULL);
- if (num == -ENOENT) {
- /*
- * It is ok to have no auxiliary devices but for this card it
- * is a strange situtation. Let's warn the about it.
- */
- dev_warn(card->dev, "card has no auxiliary devices\n");
- return 0;
- } else if (num < 0) {
- dev_err(card->dev, "error getting auxiliary devices: %d\n",
- num);
- return num;
- }
-
- aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL);
- if (!aux)
- return -ENOMEM;
- card->aux_dev = aux;
- card->num_aux_devs = num;
-
- for (i = 0; i < card->num_aux_devs; i++, aux++) {
- aux->codec_of_node =
- of_parse_phandle(node, "audio-aux-devs", i);
- if (!aux->codec_of_node)
- return -EINVAL;
- }
-
- return 0;
-}
+/*
+ * Base params for the codec to codec links
+ * Those will be over-written by the CPU side of the link
+ */
+static const struct snd_soc_pcm_stream codec_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ .rate_min = 5525,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+};
static int axg_card_tdm_be_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
- struct snd_soc_dai *codec_dai;
- unsigned int mclk;
- int ret, i;
- if (be->mclk_fs) {
- mclk = params_rate(params) * be->mclk_fs;
-
- for (i = 0; i < rtd->num_codecs; i++) {
- codec_dai = rtd->codec_dais[i];
- ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
- SND_SOC_CLOCK_IN);
- if (ret && ret != -ENOTSUPP)
- return ret;
- }
-
- ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk,
- SND_SOC_CLOCK_OUT);
- if (ret && ret != -ENOTSUPP)
- return ret;
- }
-
- return 0;
+ return meson_card_i2s_set_sysclk(substream, params, be->mclk_fs);
}
static const struct snd_soc_ops axg_card_tdm_be_ops = {
@@ -190,14 +54,13 @@
static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
struct snd_soc_dai *codec_dai;
int ret, i;
- for (i = 0; i < rtd->num_codecs; i++) {
- codec_dai = rtd->codec_dais[i];
+ for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai,
be->codec_masks[i].tx,
be->codec_masks[i].rx,
@@ -209,10 +72,10 @@
}
}
- ret = axg_tdm_set_tdm_slots(rtd->cpu_dai, be->tx_mask, be->rx_mask,
+ ret = axg_tdm_set_tdm_slots(asoc_rtd_to_cpu(rtd, 0), be->tx_mask, be->rx_mask,
be->slots, be->slot_width);
if (ret) {
- dev_err(rtd->cpu_dai->dev, "setting tdm link slots failed\n");
+ dev_err(asoc_rtd_to_cpu(rtd, 0)->dev, "setting tdm link slots failed\n");
return ret;
}
@@ -221,16 +84,16 @@
static int axg_card_tdm_dai_lb_init(struct snd_soc_pcm_runtime *rtd)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
int ret;
/* The loopback rx_mask is the pad tx_mask */
- ret = axg_tdm_set_tdm_slots(rtd->cpu_dai, NULL, be->tx_mask,
+ ret = axg_tdm_set_tdm_slots(asoc_rtd_to_cpu(rtd, 0), NULL, be->tx_mask,
be->slots, be->slot_width);
if (ret) {
- dev_err(rtd->cpu_dai->dev, "setting tdm link slots failed\n");
+ dev_err(asoc_rtd_to_cpu(rtd, 0)->dev, "setting tdm link slots failed\n");
return ret;
}
@@ -240,27 +103,37 @@
static int axg_card_add_tdm_loopback(struct snd_soc_card *card,
int *index)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_dai_link *pad = &card->dai_link[*index];
struct snd_soc_dai_link *lb;
+ struct snd_soc_dai_link_component *dlc;
int ret;
/* extend links */
- ret = axg_card_reallocate_links(priv, card->num_links + 1);
+ ret = meson_card_reallocate_links(card, card->num_links + 1);
if (ret)
return ret;
lb = &card->dai_link[*index + 1];
- lb->name = kasprintf(GFP_KERNEL, "%s-lb", pad->name);
+ lb->name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-lb", pad->name);
if (!lb->name)
return -ENOMEM;
+ dlc = devm_kzalloc(card->dev, 2 * sizeof(*dlc), GFP_KERNEL);
+ if (!dlc)
+ return -ENOMEM;
+
+ lb->cpus = &dlc[0];
+ lb->codecs = &dlc[1];
+ lb->num_cpus = 1;
+ lb->num_codecs = 1;
+
lb->stream_name = lb->name;
- lb->cpu_of_node = pad->cpu_of_node;
- lb->cpu_dai_name = "TDM Loopback";
- lb->codec_name = "snd-soc-dummy";
- lb->codec_dai_name = "snd-soc-dummy-dai";
+ lb->cpus->of_node = pad->cpus->of_node;
+ lb->cpus->dai_name = "TDM Loopback";
+ lb->codecs->name = "snd-soc-dummy";
+ lb->codecs->dai_name = "snd-soc-dummy-dai";
lb->dpcm_capture = 1;
lb->no_pcm = 1;
lb->ops = &axg_card_tdm_be_ops;
@@ -273,38 +146,12 @@
* axg_card_clean_references() will iterate over this link,
* make sure the node count is balanced
*/
- of_node_get(lb->cpu_of_node);
+ of_node_get(lb->cpus->of_node);
/* Let add_links continue where it should */
*index += 1;
return 0;
-}
-
-static unsigned int axg_card_parse_daifmt(struct device_node *node,
- struct device_node *cpu_node)
-{
- struct device_node *bitclkmaster = NULL;
- struct device_node *framemaster = NULL;
- unsigned int daifmt;
-
- daifmt = snd_soc_of_parse_daifmt(node, PREFIX,
- &bitclkmaster, &framemaster);
- daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
-
- /* If no master is provided, default to cpu master */
- if (!bitclkmaster || bitclkmaster == cpu_node) {
- daifmt |= (!framemaster || framemaster == cpu_node) ?
- SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBS_CFM;
- } else {
- daifmt |= (!framemaster || framemaster == cpu_node) ?
- SND_SOC_DAIFMT_CBM_CFS : SND_SOC_DAIFMT_CBM_CFM;
- }
-
- of_node_put(bitclkmaster);
- of_node_put(framemaster);
-
- return daifmt;
}
static int axg_card_parse_cpu_tdm_slots(struct snd_soc_card *card,
@@ -401,7 +248,7 @@
struct device_node *node,
int *index)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_dai_link *link = &card->dai_link[*index];
struct axg_dai_link_tdm_data *be;
int ret;
@@ -415,7 +262,7 @@
/* Setup tdm link */
link->ops = &axg_card_tdm_be_ops;
link->init = axg_card_tdm_dai_init;
- link->dai_fmt = axg_card_parse_daifmt(node, link->cpu_of_node);
+ link->dai_fmt = meson_card_parse_daifmt(node, link->cpus->of_node);
of_property_read_u32(node, "mclk-fs", &be->mclk_fs);
@@ -439,226 +286,83 @@
return 0;
}
-static int axg_card_set_be_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- struct device_node *node)
-{
- struct snd_soc_dai_link_component *codec;
- struct device_node *np;
- int ret, num_codecs;
-
- link->no_pcm = 1;
- link->dpcm_playback = 1;
- link->dpcm_capture = 1;
-
- num_codecs = of_get_child_count(node);
- if (!num_codecs) {
- dev_err(card->dev, "be link %s has no codec\n",
- node->full_name);
- return -EINVAL;
- }
-
- codec = devm_kcalloc(card->dev, num_codecs, sizeof(*codec), GFP_KERNEL);
- if (!codec)
- return -ENOMEM;
-
- link->codecs = codec;
- link->num_codecs = num_codecs;
-
- for_each_child_of_node(node, np) {
- ret = axg_card_parse_dai(card, np, &codec->of_node,
- &codec->dai_name);
- if (ret) {
- of_node_put(np);
- return ret;
- }
-
- codec++;
- }
-
- ret = axg_card_set_link_name(card, link, "be");
- if (ret)
- dev_err(card->dev, "error setting %s link name\n", np->name);
-
- return ret;
-}
-
-static int axg_card_set_fe_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- bool is_playback)
-{
- link->dynamic = 1;
- link->dpcm_merged_format = 1;
- link->dpcm_merged_chan = 1;
- link->dpcm_merged_rate = 1;
- link->codec_dai_name = "snd-soc-dummy-dai";
- link->codec_name = "snd-soc-dummy";
-
- if (is_playback)
- link->dpcm_playback = 1;
- else
- link->dpcm_capture = 1;
-
- return axg_card_set_link_name(card, link, "fe");
-}
-
static int axg_card_cpu_is_capture_fe(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-toddr");
+ return of_device_is_compatible(np, DT_PREFIX "axg-toddr");
}
static int axg_card_cpu_is_playback_fe(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-frddr");
+ return of_device_is_compatible(np, DT_PREFIX "axg-frddr");
}
static int axg_card_cpu_is_tdm_iface(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-tdm-iface");
+ return of_device_is_compatible(np, DT_PREFIX "axg-tdm-iface");
+}
+
+static int axg_card_cpu_is_codec(struct device_node *np)
+{
+ return of_device_is_compatible(np, DT_PREFIX "g12a-tohdmitx") ||
+ of_device_is_compatible(np, DT_PREFIX "g12a-toacodec");
}
static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
int *index)
{
struct snd_soc_dai_link *dai_link = &card->dai_link[*index];
+ struct snd_soc_dai_link_component *cpu;
int ret;
- ret = axg_card_parse_dai(card, np, &dai_link->cpu_of_node,
- &dai_link->cpu_dai_name);
+ cpu = devm_kzalloc(card->dev, sizeof(*cpu), GFP_KERNEL);
+ if (!cpu)
+ return -ENOMEM;
+
+ dai_link->cpus = cpu;
+ dai_link->num_cpus = 1;
+
+ ret = meson_card_parse_dai(card, np, &dai_link->cpus->of_node,
+ &dai_link->cpus->dai_name);
if (ret)
return ret;
- if (axg_card_cpu_is_playback_fe(dai_link->cpu_of_node))
- ret = axg_card_set_fe_link(card, dai_link, true);
- else if (axg_card_cpu_is_capture_fe(dai_link->cpu_of_node))
- ret = axg_card_set_fe_link(card, dai_link, false);
- else
- ret = axg_card_set_be_link(card, dai_link, np);
+ if (axg_card_cpu_is_playback_fe(dai_link->cpus->of_node))
+ return meson_card_set_fe_link(card, dai_link, np, true);
+ else if (axg_card_cpu_is_capture_fe(dai_link->cpus->of_node))
+ return meson_card_set_fe_link(card, dai_link, np, false);
+
+ ret = meson_card_set_be_link(card, dai_link, np);
if (ret)
return ret;
- if (axg_card_cpu_is_tdm_iface(dai_link->cpu_of_node))
- ret = axg_card_parse_tdm(card, np, index);
+ if (axg_card_cpu_is_codec(dai_link->cpus->of_node)) {
+ dai_link->params = &codec_params;
+ } else {
+ dai_link->no_pcm = 1;
+ snd_soc_dai_link_set_capabilities(dai_link);
+ if (axg_card_cpu_is_tdm_iface(dai_link->cpus->of_node))
+ ret = axg_card_parse_tdm(card, np, index);
+ }
return ret;
}
-static int axg_card_add_links(struct snd_soc_card *card)
-{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
- struct device_node *node = card->dev->of_node;
- struct device_node *np;
- int num, i, ret;
-
- num = of_get_child_count(node);
- if (!num) {
- dev_err(card->dev, "card has no links\n");
- return -EINVAL;
- }
-
- ret = axg_card_reallocate_links(priv, num);
- if (ret)
- return ret;
-
- i = 0;
- for_each_child_of_node(node, np) {
- ret = axg_card_add_link(card, np, &i);
- if (ret) {
- of_node_put(np);
- return ret;
- }
-
- i++;
- }
-
- return 0;
-}
-
-static int axg_card_parse_of_optional(struct snd_soc_card *card,
- const char *propname,
- int (*func)(struct snd_soc_card *c,
- const char *p))
-{
- /* If property is not provided, don't fail ... */
- if (!of_property_read_bool(card->dev->of_node, propname))
- return 0;
-
- /* ... but do fail if it is provided and the parsing fails */
- return func(card, propname);
-}
+static const struct meson_card_match_data axg_card_match_data = {
+ .add_link = axg_card_add_link,
+};
static const struct of_device_id axg_card_of_match[] = {
- { .compatible = "amlogic,axg-sound-card", },
- {}
+ {
+ .compatible = "amlogic,axg-sound-card",
+ .data = &axg_card_match_data,
+ }, {}
};
MODULE_DEVICE_TABLE(of, axg_card_of_match);
-static int axg_card_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct axg_card *priv;
- int ret;
-
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, priv);
- snd_soc_card_set_drvdata(&priv->card, priv);
-
- priv->card.owner = THIS_MODULE;
- priv->card.dev = dev;
-
- ret = snd_soc_of_parse_card_name(&priv->card, "model");
- if (ret < 0)
- return ret;
-
- ret = axg_card_parse_of_optional(&priv->card, "audio-routing",
- snd_soc_of_parse_audio_routing);
- if (ret) {
- dev_err(dev, "error while parsing routing\n");
- return ret;
- }
-
- ret = axg_card_parse_of_optional(&priv->card, "audio-widgets",
- snd_soc_of_parse_audio_simple_widgets);
- if (ret) {
- dev_err(dev, "error while parsing widgets\n");
- return ret;
- }
-
- ret = axg_card_add_links(&priv->card);
- if (ret)
- goto out_err;
-
- ret = axg_card_add_aux_devices(&priv->card);
- if (ret)
- goto out_err;
-
- ret = devm_snd_soc_register_card(dev, &priv->card);
- if (ret)
- goto out_err;
-
- return 0;
-
-out_err:
- axg_card_clean_references(priv);
- return ret;
-}
-
-static int axg_card_remove(struct platform_device *pdev)
-{
- struct axg_card *priv = platform_get_drvdata(pdev);
-
- axg_card_clean_references(priv);
-
- return 0;
-}
-
static struct platform_driver axg_card_pdrv = {
- .probe = axg_card_probe,
- .remove = axg_card_remove,
+ .probe = meson_card_probe,
+ .remove = meson_card_remove,
.driver = {
.name = "axg-sound-card",
.of_match_table = axg_card_of_match,
--
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