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f03beb55a8
This patch adds DPCM support to audio-graph-card2.
It uses "dpcm" node (= D), needs to have routing (= A),
need to indicate both FE/BE at links (= B, C).
dpcm ports@0 is for FE (= B), port@1 is for BE (= C).
remote-endpoint can use both Single/Multi connection.
DSP
************
PCM0 <--> * fe0 be0 * <--> DAI0: Codec Headset
PCM1 <--> * fe1 be1 * <--> DAI1: Codec Speakers
PCM2 <--> * fe2 be2 * <--> DAI2: MODEM
PCM3 <--> * fe3 be3 * <--> DAI3: BT
* be4 * <--> DAI4: DMIC
* be5 * <--> DAI5: FM
************
sound {
compatible = "audio-graph-card2";
// indicate routing
(A) routing = "xxx Playback", "xxx Playback",
"xxx Playback", "xxx Playback",
"xxx Playback", "xxx Playback";
// indicate all Front-End, Back-End in DPCM case
(B) links = <&fe0, &fe1, ...
(C) &be0, &be1, ...
(D) dpcm {
// Front-End
ports@0 {
(B) fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; };
(B) fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; };
...
};
// Back-End
ports@1 {
(C) be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; };
(C) be1: port@1 { be1_ep: endpoint { remote-endpoint = <&dai1_ep>; }; };
...
};
};
};
CPU {
ports {
bitclock-master;
frame-master;
port@0 { pcm0_ep: endpoint { remote-endpoint = <&fe0_ep>; }; };
port@1 { pcm1_ep: endpoint { remote-endpoint = <&fe1_ep>; }; };
...
};
};
Codec {
ports {
port@0 { dai0_ep: endpoint { remote-endpoint = <&be0_ep>; }; };
port@1 { dai1_ep: endpoint { remote-endpoint = <&be1_ep>; }; };
...
};
};
Link: https://lore.kernel.org/r/87k0xszlep.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zgrelu4v.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
32 lines
933 B
C
32 lines
933 B
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* ASoC audio graph card support
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*
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*/
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#ifndef __GRAPH_CARD_H
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#define __GRAPH_CARD_H
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#include <sound/simple_card_utils.h>
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typedef int (*GRAPH2_CUSTOM)(struct asoc_simple_priv *priv,
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struct device_node *lnk,
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struct link_info *li);
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struct graph2_custom_hooks {
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int (*hook_pre)(struct asoc_simple_priv *priv);
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int (*hook_post)(struct asoc_simple_priv *priv);
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GRAPH2_CUSTOM custom_normal;
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GRAPH2_CUSTOM custom_dpcm;
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};
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int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev);
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int audio_graph2_parse_of(struct asoc_simple_priv *priv, struct device *dev,
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struct graph2_custom_hooks *hooks);
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int audio_graph2_link_normal(struct asoc_simple_priv *priv,
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struct device_node *lnk, struct link_info *li);
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int audio_graph2_link_dpcm(struct asoc_simple_priv *priv,
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struct device_node *lnk, struct link_info *li);
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#endif /* __GRAPH_CARD_H */
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