From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
This patch adds DPCM support to rich-graph-card. It uses "dpcm" node (= C), needs to have routing (= A), need to indicate both FE/BE at links (= B). dpcm ports@0 is for FE (= D), port@1 is for BE (= D). 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 = "rich-graph-card";
// 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, ... &be0, &be1, ...
(C) dpcm { // Front-End (D) ports@0 { fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; }; fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; }; ... }; // Back-End (E) ports@1 { be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; }; 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 --- include/sound/graph_card.h | 3 + sound/soc/generic/rich-graph-card.c | 254 ++++++++++++++++++++++++++++ 2 files changed, 257 insertions(+)
diff --git a/include/sound/graph_card.h b/include/sound/graph_card.h index 7a22513146c0..c7b632d3e5ff 100644 --- a/include/sound/graph_card.h +++ b/include/sound/graph_card.h @@ -17,6 +17,7 @@ struct graph_custom_hooks { int (*hook_pre)(struct asoc_simple_priv *priv); int (*hook_post)(struct asoc_simple_priv *priv); GRAPH_CUSTOM custom_normal; + GRAPH_CUSTOM custom_dpcm; };
int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev); @@ -25,5 +26,7 @@ int rich_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev,
int rich_graph_link_normal(struct asoc_simple_priv *priv, struct device_node *lnk, struct link_info *li); +int rich_graph_link_dpcm(struct asoc_simple_priv *priv, + struct device_node *lnk, struct link_info *li);
#endif /* __GRAPH_CARD_H */ diff --git a/sound/soc/generic/rich-graph-card.c b/sound/soc/generic/rich-graph-card.c index 6ce7001fab2e..e69fb5e73d62 100644 --- a/sound/soc/generic/rich-graph-card.c +++ b/sound/soc/generic/rich-graph-card.c @@ -116,15 +116,77 @@ links indicates connection part of CPU side (= A). }; };
+ ************************************ + DPCM + ************************************ + + 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 = "rich-graph-card"; + + // indicate routing + routing = "xxx Playback", "xxx Playback", + "xxx Playback", "xxx Playback", + "xxx Playback", "xxx Playback"; + + // indicate all Front-End, Back-End + links = <&fe0, &fe1, ..., + &be0, &be1, ...>; + + dpcm { + // Front-End + ports@0 { + fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; }; + fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; }; + ... + }; + // Back-End + ports@1 { + be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; }; + 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>; }; }; + ... + }; + }; + */
enum graph_type { GRAPH_NORMAL, + GRAPH_DPCM,
GRAPH_MULTI, /* don't use ! Use this only in __graph_get_type() */ };
#define GRAPH_NODENAME_MULTI "multi" +#define GRAPH_NODENAME_DPCM "dpcm"
#define port_to_endpoint(port) of_get_child_by_name(port, "endpoint")
@@ -147,6 +209,9 @@ static enum graph_type __graph_get_type(struct device_node *lnk) if (of_node_name_eq(np, GRAPH_NODENAME_MULTI)) return GRAPH_MULTI;
+ if (of_node_name_eq(np, GRAPH_NODENAME_DPCM)) + return GRAPH_DPCM; + return GRAPH_NORMAL; }
@@ -164,6 +229,17 @@ static enum graph_type graph_get_type(struct asoc_simple_priv *priv, struct device *dev = simple_priv_to_dev(priv); const char *str = "Normal";
+ switch (type) { + case GRAPH_DPCM: + if (asoc_graph_is_ports0(lnk)) + str = "DPCM Front-End"; + else + str = "DPCM Back-End"; + break; + default: + break; + } + dev_dbg(dev, "%pOF (%s)", lnk, str); } #endif @@ -322,6 +398,22 @@ static int asoc_simple_parse_dai(struct device_node *ep, return 0; }
+static void graph_parse_convert(struct device_node *ep, + struct simple_dai_props *props) +{ + struct device_node *port = of_get_parent(ep); + struct device_node *ports = of_get_parent(port); + struct asoc_simple_data *adata = &props->adata; + + if (of_node_name_eq(ports, "ports")) + asoc_simple_parse_convert(ports, NULL, adata); + asoc_simple_parse_convert(port, NULL, adata); + asoc_simple_parse_convert(ep, NULL, adata); + + of_node_put(port); + of_node_put(ports); +} + static void graph_parse_mclk_fs(struct device_node *ep, struct simple_dai_props *props) { @@ -394,11 +486,37 @@ static int __graph_parse_node(struct asoc_simple_priv *priv, cpus->dai_name, cpu_multi, codecs->dai_name, codec_multi); break; + case GRAPH_DPCM: + if (is_cpu) + asoc_simple_set_dailink_name(dev, dai_link, "fe.%pOFP.%s%s", + cpus->of_node, cpus->dai_name, cpu_multi); + else + asoc_simple_set_dailink_name(dev, dai_link, "be.%pOFP.%s%s", + codecs->of_node, codecs->dai_name, codec_multi); + break; default: break; } }
+ /* + * Check "prefix" from top node + * if DPCM-BE case + */ + if (!is_cpu && gtype == GRAPH_DPCM) { + struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, idx); + struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, idx); + struct device_node *rport = of_get_parent(ep); + struct device_node *rports = of_get_parent(rport); + + if (of_node_name_eq(rports, "ports")) + snd_soc_of_parse_node_prefix(rports, cconf, codecs->of_node, "prefix"); + snd_soc_of_parse_node_prefix(rport, cconf, codecs->of_node, "prefix"); + + of_node_put(rport); + of_node_put(rports); + } + if (is_cpu) { struct snd_soc_dai_link_component *cpus = dlc; struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, idx); @@ -582,6 +700,98 @@ int rich_graph_link_normal(struct asoc_simple_priv *priv, } EXPORT_SYMBOL_GPL(rich_graph_link_normal);
+int rich_graph_link_dpcm(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct device_node *ep = port_to_endpoint(lnk); + struct device_node *rep = of_graph_get_remote_endpoint(ep); + struct device_node *rport = of_graph_get_remote_port(ep); + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); + struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link); + int is_cpu = asoc_graph_is_ports0(lnk); + int ret; + + if (is_cpu) { + /* + * dpcm { + * // Front-End + * ports@0 { + * => lnk: port@0 { ep: { ... = rep }; }; + * ... + * }; + * // Back-End + * ports@0 { + * ... + * }; + * }; + * + * CPU { + * rports: ports { + * rport: port@0 { rep: { ... = ep } }; + * } + * } + */ + /* + * setup CPU here, Codec is already set as dummy. + * see + * asoc_simple_init_priv() + */ + dai_link->dynamic = 1; + dai_link->dpcm_merged_format = 1; + + ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 1); + if (ret) + goto err; + } else { + /* + * dpcm { + * // Front-End + * ports@0 { + * ... + * }; + * // Back-End + * ports@0 { + * => lnk: port@0 { ep: { ... = rep; }; }; + * ... + * }; + * }; + * + * Codec { + * rports: ports { + * rport: port@0 { rep: { ... = ep; }; }; + * } + * } + */ + /* + * setup Codec here, CPU is already set as dummy. + * see + * asoc_simple_init_priv() + */ + + /* BE settings */ + dai_link->no_pcm = 1; + dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup; + + ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 0); + if (ret < 0) + goto err; + } + + graph_parse_convert(rep, dai_props); + + snd_soc_dai_link_set_capabilities(dai_link); + + graph_link_init(priv, rport, li, is_cpu); +err: + of_node_put(ep); + of_node_put(rep); + of_node_put(rport); + + return ret; +} +EXPORT_SYMBOL_GPL(rich_graph_link_dpcm); + static int graph_link(struct asoc_simple_priv *priv, struct graph_custom_hooks *hooks, enum graph_type gtype, @@ -599,6 +809,12 @@ static int graph_link(struct asoc_simple_priv *priv, else func = rich_graph_link_normal; break; + case GRAPH_DPCM: + if (hooks && hooks->custom_dpcm) + func = hooks->custom_dpcm; + else + func = rich_graph_link_dpcm; + break; default: break; } @@ -665,6 +881,41 @@ static int graph_count_normal(struct asoc_simple_priv *priv, return 0; }
+static int graph_count_dpcm(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct device_node *ep = port_to_endpoint(lnk); + struct device_node *rport = of_graph_get_remote_port(ep); + + /* + * dpcm { + * // Front-End + * ports@0 { + * => lnk: port@0 { endpoint { ... }; }; + * ... + * }; + * // Back-End + * ports@1 { + * => lnk: port@0 { endpoint { ... }; }; + * ... + * }; + * }; + */ + + if (asoc_graph_is_ports0(lnk)) { + li->num[li->link].cpus = graph_counter(rport); /* FE */ + li->num[li->link].platforms = graph_counter(rport); + } else { + li->num[li->link].codecs = graph_counter(rport); /* BE */ + } + + of_node_put(ep); + of_node_put(rport); + + return 0; +} + static int graph_count(struct asoc_simple_priv *priv, struct graph_custom_hooks *hooks, enum graph_type gtype, @@ -684,6 +935,9 @@ static int graph_count(struct asoc_simple_priv *priv, case GRAPH_NORMAL: func = graph_count_normal; break; + case GRAPH_DPCM: + func = graph_count_dpcm; + break; default: }