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/* SPDX-License-Identifier: GPL-2.0
* simple_card_utils.h
* Copyright (c) 2016 Kuninori Morimoto <>
#include <linux/clk.h>
#include <sound/soc.h>
#define asoc_simple_init_hp(card, sjack, prefix) \
asoc_simple_init_jack(card, sjack, 1, prefix, NULL)
#define asoc_simple_init_mic(card, sjack, prefix) \
asoc_simple_init_jack(card, sjack, 0, prefix, NULL)
struct asoc_simple_dai {
const char *name;
unsigned int sysclk;
int clk_direction;
int slots;
int slot_width;
unsigned int tx_slot_mask;
unsigned int rx_slot_mask;
struct clk *clk;
struct asoc_simple_data {
u32 convert_rate;
u32 convert_channels;
struct asoc_simple_jack {
struct snd_soc_jack jack;
struct snd_soc_jack_pin pin;
struct snd_soc_jack_gpio gpio;
struct prop_nums {
int cpus;
int codecs;
int platforms;
struct asoc_simple_priv {
struct snd_soc_card snd_card;
struct simple_dai_props {
struct asoc_simple_dai *cpu_dai;
struct asoc_simple_dai *codec_dai;
struct snd_soc_dai_link_component *cpus;
struct snd_soc_dai_link_component *codecs;
struct snd_soc_dai_link_component *platforms;
struct asoc_simple_data adata;
struct snd_soc_codec_conf *codec_conf;
struct prop_nums num;
unsigned int mclk_fs;
} *dai_props;
struct asoc_simple_jack hp_jack;
struct asoc_simple_jack mic_jack;
struct snd_soc_dai_link *dai_link;
struct asoc_simple_dai *dais;
struct snd_soc_dai_link_component *dlcs;
struct snd_soc_dai_link_component dummy;
struct snd_soc_codec_conf *codec_conf;
struct gpio_desc *pa_gpio;
const struct snd_soc_ops *ops;
unsigned int dpcm_selectable:1;
unsigned int force_dpcm:1;
#define simple_priv_to_card(priv) (&(priv)->snd_card)
#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
#define simple_priv_to_dev(priv) (simple_priv_to_card(priv)->dev)
#define simple_priv_to_link(priv, i) (simple_priv_to_card(priv)->dai_link + (i))
#define simple_props_to_dlc_cpu(props, i) ((props)->cpus + i)
#define simple_props_to_dlc_codec(props, i) ((props)->codecs + i)
#define simple_props_to_dlc_platform(props, i) ((props)->platforms + i)
#define simple_props_to_dai_cpu(props, i) ((props)->cpu_dai + i)
#define simple_props_to_dai_codec(props, i) ((props)->codec_dai + i)
#define simple_props_to_codec_conf(props, i) ((props)->codec_conf + i)
#define for_each_prop_dlc_cpus(props, i, cpu) \
for ((i) = 0; \
((i) < (props)->num.cpus) && \
((cpu) = simple_props_to_dlc_cpu(props, i)); \
#define for_each_prop_dlc_codecs(props, i, codec) \
for ((i) = 0; \
((i) < (props)->num.codecs) && \
((codec) = simple_props_to_dlc_codec(props, i)); \
#define for_each_prop_dlc_platforms(props, i, platform) \
for ((i) = 0; \
((i) < (props)->num.platforms) && \
((platform) = simple_props_to_dlc_platform(props, i)); \
#define for_each_prop_codec_conf(props, i, conf) \
for ((i) = 0; \
((i) < (props)->num.codecs) && \
(props)->codec_conf && \
((conf) = simple_props_to_codec_conf(props, i)); \
#define for_each_prop_dai_cpu(props, i, cpu) \
for ((i) = 0; \
((i) < (props)->num.cpus) && \
((cpu) = simple_props_to_dai_cpu(props, i)); \
#define for_each_prop_dai_codec(props, i, codec) \
for ((i) = 0; \
((i) < (props)->num.codecs) && \
((codec) = simple_props_to_dai_codec(props, i)); \
#define SNDRV_MAX_LINKS 128
struct link_info {
int link; /* number of link */
int cpu; /* turn for CPU / Codec */
struct prop_nums num[SNDRV_MAX_LINKS];
int asoc_simple_parse_daifmt(struct device *dev,
struct device_node *node,
struct device_node *codec,
char *prefix,
unsigned int *retfmt);
__printf(3, 4)
int asoc_simple_set_dailink_name(struct device *dev,
struct snd_soc_dai_link *dai_link,
const char *fmt, ...);
int asoc_simple_parse_card_name(struct snd_soc_card *card,
char *prefix);
int asoc_simple_parse_clk(struct device *dev,
struct device_node *node,
struct asoc_simple_dai *simple_dai,
struct snd_soc_dai_link_component *dlc);
int asoc_simple_startup(struct snd_pcm_substream *substream);
void asoc_simple_shutdown(struct snd_pcm_substream *substream);
int asoc_simple_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params);
int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd);
int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params);
#define asoc_simple_parse_tdm(np, dai) \
snd_soc_of_parse_tdm_slot(np, &(dai)->tx_slot_mask, \
&(dai)->rx_slot_mask, \
&(dai)->slots, \
void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
struct snd_soc_dai_link_component *cpus);
void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
int is_single_links);
int asoc_simple_clean_reference(struct snd_soc_card *card);
void asoc_simple_convert_fixup(struct asoc_simple_data *data,
struct snd_pcm_hw_params *params);
void asoc_simple_parse_convert(struct device_node *np, char *prefix,
struct asoc_simple_data *data);
int asoc_simple_parse_routing(struct snd_soc_card *card,
char *prefix);
int asoc_simple_parse_widgets(struct snd_soc_card *card,
char *prefix);
int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
char *prefix);
int asoc_simple_init_jack(struct snd_soc_card *card,
struct asoc_simple_jack *sjack,
int is_hp, char *prefix, char *pin);
int asoc_simple_init_priv(struct asoc_simple_priv *priv,
struct link_info *li);
int asoc_simple_remove(struct platform_device *pdev);
int asoc_graph_card_probe(struct snd_soc_card *card);
#ifdef DEBUG
static inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv,
char *name,
struct asoc_simple_dai *dai)
struct device *dev = simple_priv_to_dev(priv);
/* dai might be NULL */
if (!dai)
if (dai->name)
dev_dbg(dev, "%s dai name = %s\n",
name, dai->name);
if (dai->slots)
dev_dbg(dev, "%s slots = %d\n", name, dai->slots);
if (dai->slot_width)
dev_dbg(dev, "%s slot width = %d\n", name, dai->slot_width);
if (dai->tx_slot_mask)
dev_dbg(dev, "%s tx slot mask = %d\n", name, dai->tx_slot_mask);
if (dai->rx_slot_mask)
dev_dbg(dev, "%s rx slot mask = %d\n", name, dai->rx_slot_mask);
if (dai->clk)
dev_dbg(dev, "%s clk %luHz\n", name, clk_get_rate(dai->clk));
if (dai->sysclk)
dev_dbg(dev, "%s sysclk = %dHz\n",
name, dai->sysclk);
if (dai->clk || dai->sysclk)
dev_dbg(dev, "%s direction = %s\n",
name, dai->clk_direction ? "OUT" : "IN");
static inline void asoc_simple_debug_info(struct asoc_simple_priv *priv)
struct snd_soc_card *card = simple_priv_to_card(priv);
struct device *dev = simple_priv_to_dev(priv);
int i;
if (card->name)
dev_dbg(dev, "Card Name: %s\n", card->name);
for (i = 0; i < card->num_links; i++) {
struct simple_dai_props *props = simple_priv_to_props(priv, i);
struct snd_soc_dai_link *link = simple_priv_to_link(priv, i);
struct asoc_simple_dai *dai;
struct snd_soc_codec_conf *cnf;
int j;
dev_dbg(dev, "DAI%d\n", i);
dev_dbg(dev, "cpu num = %d\n", link->num_cpus);
for_each_prop_dai_cpu(props, j, dai)
asoc_simple_debug_dai(priv, "cpu", dai);
dev_dbg(dev, "codec num = %d\n", link->num_codecs);
for_each_prop_dai_codec(props, j, dai)
asoc_simple_debug_dai(priv, "codec", dai);
if (link->name)
dev_dbg(dev, "dai name = %s\n", link->name);
if (link->dai_fmt)
dev_dbg(dev, "dai format = %04x\n", link->dai_fmt);
if (props->adata.convert_rate)
dev_dbg(dev, "convert_rate = %d\n", props->adata.convert_rate);
if (props->adata.convert_channels)
dev_dbg(dev, "convert_channels = %d\n", props->adata.convert_channels);
for_each_prop_codec_conf(props, j, cnf)
if (cnf->name_prefix)
dev_dbg(dev, "name prefix = %s\n", cnf->name_prefix);
if (props->mclk_fs)
dev_dbg(dev, "mclk-fs = %d\n", props->mclk_fs);
#define asoc_simple_debug_info(priv)
#endif /* DEBUG */
#endif /* __SIMPLE_CARD_UTILS_H */