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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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1e974e5b82
Some audio hardware cannot support the same slot width for all sample widths, or a slot width equal to the sample width for all sample widths. This is usually due either to limitations of the audio serial port or system clocking restrictions. A typical example would be: - 16-bit samples in 16-bit slots - 24-bit samples in 32-bit slots The new dai-tdm-slot-width-map property allows setting a mapping of sample widths and the corresponding tdm slot widths and slot counts. Although the slot count is usually the same for all cases this does allow for adding padding slots to maintain the same bitclk frequency. The property is added to each endpoint node that needs the component DAI to be told the TDM slot width and count. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220228172754.453783-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
278 lines
8.6 KiB
C
278 lines
8.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* simple_card_utils.h
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*
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* Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*/
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#ifndef __SIMPLE_CARD_UTILS_H
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#define __SIMPLE_CARD_UTILS_H
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#include <linux/clk.h>
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#include <sound/soc.h>
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#define asoc_simple_init_hp(card, sjack, prefix) \
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asoc_simple_init_jack(card, sjack, 1, prefix, NULL)
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#define asoc_simple_init_mic(card, sjack, prefix) \
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asoc_simple_init_jack(card, sjack, 0, prefix, NULL)
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struct asoc_simple_tdm_width_map {
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u8 sample_bits;
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u8 slot_count;
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u16 slot_width;
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};
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struct asoc_simple_dai {
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const char *name;
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unsigned int sysclk;
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int clk_direction;
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int slots;
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int slot_width;
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unsigned int tx_slot_mask;
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unsigned int rx_slot_mask;
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struct clk *clk;
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bool clk_fixed;
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struct asoc_simple_tdm_width_map *tdm_width_map;
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int n_tdm_widths;
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};
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struct asoc_simple_data {
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u32 convert_rate;
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u32 convert_channels;
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};
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struct asoc_simple_jack {
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struct snd_soc_jack jack;
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struct snd_soc_jack_pin pin;
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struct snd_soc_jack_gpio gpio;
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};
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struct prop_nums {
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int cpus;
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int codecs;
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int platforms;
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int c2c;
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};
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struct asoc_simple_priv {
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struct snd_soc_card snd_card;
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struct simple_dai_props {
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struct asoc_simple_dai *cpu_dai;
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struct asoc_simple_dai *codec_dai;
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struct snd_soc_dai_link_component *cpus;
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struct snd_soc_dai_link_component *codecs;
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struct snd_soc_dai_link_component *platforms;
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struct asoc_simple_data adata;
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struct snd_soc_codec_conf *codec_conf;
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struct snd_soc_pcm_stream *c2c_conf;
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struct prop_nums num;
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unsigned int mclk_fs;
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} *dai_props;
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struct asoc_simple_jack hp_jack;
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struct asoc_simple_jack mic_jack;
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struct snd_soc_dai_link *dai_link;
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struct asoc_simple_dai *dais;
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struct snd_soc_dai_link_component *dlcs;
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struct snd_soc_dai_link_component dummy;
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struct snd_soc_codec_conf *codec_conf;
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struct snd_soc_pcm_stream *c2c_conf;
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struct gpio_desc *pa_gpio;
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const struct snd_soc_ops *ops;
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unsigned int dpcm_selectable:1;
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unsigned int force_dpcm:1;
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};
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#define simple_priv_to_card(priv) (&(priv)->snd_card)
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#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
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#define simple_priv_to_dev(priv) (simple_priv_to_card(priv)->dev)
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#define simple_priv_to_link(priv, i) (simple_priv_to_card(priv)->dai_link + (i))
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#define simple_props_to_dlc_cpu(props, i) ((props)->cpus + i)
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#define simple_props_to_dlc_codec(props, i) ((props)->codecs + i)
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#define simple_props_to_dlc_platform(props, i) ((props)->platforms + i)
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#define simple_props_to_dai_cpu(props, i) ((props)->cpu_dai + i)
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#define simple_props_to_dai_codec(props, i) ((props)->codec_dai + i)
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#define simple_props_to_codec_conf(props, i) ((props)->codec_conf + i)
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#define for_each_prop_dlc_cpus(props, i, cpu) \
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for ((i) = 0; \
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((i) < (props)->num.cpus) && \
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((cpu) = simple_props_to_dlc_cpu(props, i)); \
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(i)++)
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#define for_each_prop_dlc_codecs(props, i, codec) \
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for ((i) = 0; \
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((i) < (props)->num.codecs) && \
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((codec) = simple_props_to_dlc_codec(props, i)); \
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(i)++)
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#define for_each_prop_dlc_platforms(props, i, platform) \
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for ((i) = 0; \
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((i) < (props)->num.platforms) && \
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((platform) = simple_props_to_dlc_platform(props, i)); \
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(i)++)
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#define for_each_prop_codec_conf(props, i, conf) \
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for ((i) = 0; \
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((i) < (props)->num.codecs) && \
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(props)->codec_conf && \
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((conf) = simple_props_to_codec_conf(props, i)); \
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(i)++)
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#define for_each_prop_dai_cpu(props, i, cpu) \
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for ((i) = 0; \
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((i) < (props)->num.cpus) && \
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((cpu) = simple_props_to_dai_cpu(props, i)); \
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(i)++)
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#define for_each_prop_dai_codec(props, i, codec) \
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for ((i) = 0; \
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((i) < (props)->num.codecs) && \
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((codec) = simple_props_to_dai_codec(props, i)); \
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(i)++)
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#define SNDRV_MAX_LINKS 512
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struct link_info {
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int link; /* number of link */
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int cpu; /* turn for CPU / Codec */
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struct prop_nums num[SNDRV_MAX_LINKS];
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};
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int asoc_simple_parse_daifmt(struct device *dev,
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struct device_node *node,
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struct device_node *codec,
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char *prefix,
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unsigned int *retfmt);
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int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
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struct asoc_simple_dai *dai);
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__printf(3, 4)
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int asoc_simple_set_dailink_name(struct device *dev,
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struct snd_soc_dai_link *dai_link,
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const char *fmt, ...);
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int asoc_simple_parse_card_name(struct snd_soc_card *card,
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char *prefix);
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int asoc_simple_parse_clk(struct device *dev,
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struct device_node *node,
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struct asoc_simple_dai *simple_dai,
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struct snd_soc_dai_link_component *dlc);
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int asoc_simple_startup(struct snd_pcm_substream *substream);
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void asoc_simple_shutdown(struct snd_pcm_substream *substream);
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int asoc_simple_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params);
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int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd);
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int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params);
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#define asoc_simple_parse_tdm(np, dai) \
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snd_soc_of_parse_tdm_slot(np, &(dai)->tx_slot_mask, \
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&(dai)->rx_slot_mask, \
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&(dai)->slots, \
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&(dai)->slot_width);
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void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
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struct snd_soc_dai_link_component *cpus);
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void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
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int is_single_links);
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int asoc_simple_clean_reference(struct snd_soc_card *card);
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void asoc_simple_convert_fixup(struct asoc_simple_data *data,
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struct snd_pcm_hw_params *params);
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void asoc_simple_parse_convert(struct device_node *np, char *prefix,
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struct asoc_simple_data *data);
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int asoc_simple_parse_routing(struct snd_soc_card *card,
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char *prefix);
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int asoc_simple_parse_widgets(struct snd_soc_card *card,
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char *prefix);
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int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
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char *prefix);
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int asoc_simple_init_jack(struct snd_soc_card *card,
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struct asoc_simple_jack *sjack,
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int is_hp, char *prefix, char *pin);
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int asoc_simple_init_priv(struct asoc_simple_priv *priv,
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struct link_info *li);
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int asoc_simple_remove(struct platform_device *pdev);
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int asoc_graph_card_probe(struct snd_soc_card *card);
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int asoc_graph_is_ports0(struct device_node *port);
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#ifdef DEBUG
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static inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv,
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char *name,
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struct asoc_simple_dai *dai)
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{
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struct device *dev = simple_priv_to_dev(priv);
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/* dai might be NULL */
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if (!dai)
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return;
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if (dai->name)
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dev_dbg(dev, "%s dai name = %s\n",
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name, dai->name);
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if (dai->slots)
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dev_dbg(dev, "%s slots = %d\n", name, dai->slots);
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if (dai->slot_width)
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dev_dbg(dev, "%s slot width = %d\n", name, dai->slot_width);
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if (dai->tx_slot_mask)
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dev_dbg(dev, "%s tx slot mask = %d\n", name, dai->tx_slot_mask);
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if (dai->rx_slot_mask)
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dev_dbg(dev, "%s rx slot mask = %d\n", name, dai->rx_slot_mask);
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if (dai->clk)
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dev_dbg(dev, "%s clk %luHz\n", name, clk_get_rate(dai->clk));
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if (dai->sysclk)
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dev_dbg(dev, "%s sysclk = %dHz\n",
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name, dai->sysclk);
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if (dai->clk || dai->sysclk)
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dev_dbg(dev, "%s direction = %s\n",
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name, dai->clk_direction ? "OUT" : "IN");
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}
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static inline void asoc_simple_debug_info(struct asoc_simple_priv *priv)
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{
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struct snd_soc_card *card = simple_priv_to_card(priv);
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struct device *dev = simple_priv_to_dev(priv);
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int i;
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if (card->name)
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dev_dbg(dev, "Card Name: %s\n", card->name);
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for (i = 0; i < card->num_links; i++) {
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struct simple_dai_props *props = simple_priv_to_props(priv, i);
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struct snd_soc_dai_link *link = simple_priv_to_link(priv, i);
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struct asoc_simple_dai *dai;
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struct snd_soc_codec_conf *cnf;
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int j;
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dev_dbg(dev, "DAI%d\n", i);
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dev_dbg(dev, "cpu num = %d\n", link->num_cpus);
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for_each_prop_dai_cpu(props, j, dai)
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asoc_simple_debug_dai(priv, "cpu", dai);
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dev_dbg(dev, "codec num = %d\n", link->num_codecs);
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for_each_prop_dai_codec(props, j, dai)
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asoc_simple_debug_dai(priv, "codec", dai);
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if (link->name)
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dev_dbg(dev, "dai name = %s\n", link->name);
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if (link->dai_fmt)
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dev_dbg(dev, "dai format = %04x\n", link->dai_fmt);
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if (props->adata.convert_rate)
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dev_dbg(dev, "convert_rate = %d\n", props->adata.convert_rate);
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if (props->adata.convert_channels)
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dev_dbg(dev, "convert_channels = %d\n", props->adata.convert_channels);
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for_each_prop_codec_conf(props, j, cnf)
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if (cnf->name_prefix)
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dev_dbg(dev, "name prefix = %s\n", cnf->name_prefix);
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if (props->mclk_fs)
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dev_dbg(dev, "mclk-fs = %d\n", props->mclk_fs);
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}
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}
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#else
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#define asoc_simple_debug_info(priv)
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#endif /* DEBUG */
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#endif /* __SIMPLE_CARD_UTILS_H */
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