| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kuninori Morimoto | 2569 | 84.81% | 46 | 70.77% |
| Sameer Pujar | 267 | 8.81% | 6 | 9.23% |
| Shawn Guo | 130 | 4.29% | 1 | 1.54% |
| Krzysztof Kozlowski | 19 | 0.63% | 1 | 1.54% |
| Thierry Reding | 18 | 0.59% | 3 | 4.62% |
| Wang Yufen | 7 | 0.23% | 1 | 1.54% |
| Tony Lindgren | 7 | 0.23% | 1 | 1.54% |
| Olivier Moysan | 4 | 0.13% | 1 | 1.54% |
| Pierre-Louis Bossart | 3 | 0.10% | 1 | 1.54% |
| Aidan MacDonald | 2 | 0.07% | 1 | 1.54% |
| Uwe Kleine-König | 1 | 0.03% | 1 | 1.54% |
| Bhumika Goyal | 1 | 0.03% | 1 | 1.54% |
| Wen Yang | 1 | 0.03% | 1 | 1.54% |
| Total | 3029 | 65 |
// SPDX-License-Identifier: GPL-2.0 // // ASoC audio graph sound card support // // Copyright (C) 2016 Renesas Solutions Corp. // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> // // based on ${LINUX}/sound/soc/generic/simple-card.c #include <linux/cleanup.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/string.h> #include <sound/graph_card.h> #define DPCM_SELECTABLE 1 #define ep_to_port(ep) of_get_parent(ep) static struct device_node *port_to_ports(struct device_node *port) { struct device_node *ports = of_get_parent(port); if (!of_node_name_eq(ports, "ports")) { of_node_put(ports); return NULL; } return ports; } static int graph_outdrv_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct simple_util_priv *priv = snd_soc_card_get_drvdata(dapm->card); switch (event) { case SND_SOC_DAPM_POST_PMU: gpiod_set_value_cansleep(priv->pa_gpio, 1); break; case SND_SOC_DAPM_PRE_PMD: gpiod_set_value_cansleep(priv->pa_gpio, 0); break; default: return -EINVAL; } return 0; } static const struct snd_soc_dapm_widget graph_dapm_widgets[] = { SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM, 0, 0, NULL, 0, graph_outdrv_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), }; static const struct snd_soc_ops graph_ops = { .startup = simple_util_startup, .shutdown = simple_util_shutdown, .hw_params = simple_util_hw_params, }; static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc) { struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc); if (dai && (dai->component->driver->pcm_construct || (dai->driver->ops && dai->driver->ops->pcm_new))) return true; return false; } static void graph_parse_convert(struct device *dev, struct device_node *ep, struct simple_util_data *adata) { struct device_node *top = dev->of_node; struct device_node *port = ep_to_port(ep); struct device_node *ports = port_to_ports(port); struct device_node *node = of_graph_get_port_parent(ep); simple_util_parse_convert(top, NULL, adata); simple_util_parse_convert(ports, NULL, adata); simple_util_parse_convert(port, NULL, adata); simple_util_parse_convert(ep, NULL, adata); of_node_put(port); of_node_put(ports); of_node_put(node); } static int graph_parse_node(struct simple_util_priv *priv, struct device_node *ep, struct link_info *li, int *cpu) { struct device *dev = simple_priv_to_dev(priv); 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); struct snd_soc_dai_link_component *dlc; struct simple_util_dai *dai; int ret; if (cpu) { dlc = snd_soc_link_to_cpu(dai_link, 0); dai = simple_props_to_dai_cpu(dai_props, 0); } else { dlc = snd_soc_link_to_codec(dai_link, 0); dai = simple_props_to_dai_codec(dai_props, 0); } ret = graph_util_parse_dai(dev, ep, dlc, cpu); if (ret < 0) return ret; ret = simple_util_parse_tdm(ep, dai); if (ret < 0) return ret; ret = simple_util_parse_clk(dev, ep, dai, dlc); if (ret < 0) return ret; return 0; } static int graph_link_init(struct simple_util_priv *priv, struct device_node *ep_cpu, struct device_node *ep_codec, struct link_info *li, char *name) { struct device *dev = simple_priv_to_dev(priv); struct device_node *top = dev->of_node; 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); struct device_node *port_cpu = ep_to_port(ep_cpu); struct device_node *port_codec = ep_to_port(ep_codec); struct device_node *ports_cpu = port_to_ports(port_cpu); struct device_node *ports_codec = port_to_ports(port_codec); enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT; enum snd_soc_trigger_order trigger_stop = SND_SOC_TRIGGER_ORDER_DEFAULT; bool playback_only = 0, capture_only = 0; int ret; ret = simple_util_parse_daifmt(dev, ep_cpu, ep_codec, NULL, &dai_link->dai_fmt); if (ret < 0) goto init_end; graph_util_parse_link_direction(top, &playback_only, &capture_only); graph_util_parse_link_direction(port_cpu, &playback_only, &capture_only); graph_util_parse_link_direction(port_codec, &playback_only, &capture_only); graph_util_parse_link_direction(ep_cpu, &playback_only, &capture_only); graph_util_parse_link_direction(ep_codec, &playback_only, &capture_only); of_property_read_u32(top, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ports_cpu, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ports_codec, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(port_cpu, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(port_codec, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ep_cpu, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ep_codec, "mclk-fs", &dai_props->mclk_fs); graph_util_parse_trigger_order(priv, top, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, ports_cpu, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, ports_codec, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, port_cpu, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, port_cpu, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, ep_cpu, &trigger_start, &trigger_stop); graph_util_parse_trigger_order(priv, ep_codec, &trigger_start, &trigger_stop); dai_link->playback_only = playback_only; dai_link->capture_only = capture_only; dai_link->trigger_start = trigger_start; dai_link->trigger_stop = trigger_stop; dai_link->init = simple_util_dai_init; dai_link->ops = &graph_ops; if (priv->ops) dai_link->ops = priv->ops; ret = simple_util_set_dailink_name(dev, dai_link, name); init_end: of_node_put(ports_cpu); of_node_put(ports_codec); of_node_put(port_cpu); of_node_put(port_codec); return ret; } static int graph_dai_link_of_dpcm(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li) { struct device *dev = simple_priv_to_dev(priv); 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); struct device_node *top = dev->of_node; struct device_node *ep = li->cpu ? cpu_ep : codec_ep; char dai_name[64]; int ret; dev_dbg(dev, "link_of DPCM (%pOF)\n", ep); if (li->cpu) { struct snd_soc_card *card = simple_priv_to_card(priv); struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0); struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0); int is_single_links = 0; /* Codec is dummy */ /* FE settings */ dai_link->dynamic = 1; dai_link->dpcm_merged_format = 1; ret = graph_parse_node(priv, cpu_ep, li, &is_single_links); if (ret) return ret; snprintf(dai_name, sizeof(dai_name), "fe.%pOFP.%s", cpus->of_node, cpus->dai_name); /* * In BE<->BE connections it is not required to create * PCM devices at CPU end of the dai link and thus 'no_pcm' * flag needs to be set. It is useful when there are many * BE components and some of these have to be connected to * form a valid audio path. * * For example: FE <-> BE1 <-> BE2 <-> ... <-> BEn where * there are 'n' BE components in the path. */ if (card->component_chaining && !soc_component_is_pcm(cpus)) { dai_link->no_pcm = 1; dai_link->be_hw_params_fixup = simple_util_be_hw_params_fixup; } simple_util_canonicalize_cpu(cpus, is_single_links); simple_util_canonicalize_platform(platforms, cpus); } else { struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, 0); struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0); struct device_node *port; struct device_node *ports; /* CPU is dummy */ /* BE settings */ dai_link->no_pcm = 1; dai_link->be_hw_params_fixup = simple_util_be_hw_params_fixup; ret = graph_parse_node(priv, codec_ep, li, NULL); if (ret < 0) return ret; snprintf(dai_name, sizeof(dai_name), "be.%pOFP.%s", codecs->of_node, codecs->dai_name); /* check "prefix" from top node */ port = ep_to_port(ep); ports = port_to_ports(port); snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node, "prefix"); snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix"); snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node, "prefix"); of_node_put(ports); of_node_put(port); } graph_parse_convert(dev, ep, &dai_props->adata); snd_soc_dai_link_set_capabilities(dai_link); ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name); li->link++; return ret; } static int graph_dai_link_of(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li) { struct device *dev = simple_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0); struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0); struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0); char dai_name[64]; int ret, is_single_links = 0; dev_dbg(dev, "link_of (%pOF)\n", cpu_ep); ret = graph_parse_node(priv, cpu_ep, li, &is_single_links); if (ret < 0) return ret; ret = graph_parse_node(priv, codec_ep, li, NULL); if (ret < 0) return ret; snprintf(dai_name, sizeof(dai_name), "%s-%s", cpus->dai_name, codecs->dai_name); simple_util_canonicalize_cpu(cpus, is_single_links); simple_util_canonicalize_platform(platforms, cpus); ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name); if (ret < 0) return ret; li->link++; return 0; } static inline bool parse_as_dpcm_link(struct simple_util_priv *priv, struct device_node *codec_port, struct simple_util_data *adata) { if (priv->force_dpcm) return true; if (!priv->dpcm_selectable) return false; /* * It is DPCM * if Codec port has many endpoints, * or has convert-xxx property */ if ((of_get_child_count(codec_port) > 1) || simple_util_is_convert_required(adata)) return true; return false; } static int __graph_for_each_link(struct simple_util_priv *priv, struct link_info *li, int (*func_noml)(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li), int (*func_dpcm)(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li)) { struct of_phandle_iterator it; struct device *dev = simple_priv_to_dev(priv); struct device_node *node = dev->of_node; struct device_node *cpu_port; struct device_node *cpu_ep; struct device_node *codec_ep; struct device_node *codec_port; struct device_node *codec_port_old = NULL; struct simple_util_data adata; int rc, ret = 0; /* loop for all listed CPU port */ of_for_each_phandle(&it, rc, node, "dais", NULL, 0) { cpu_port = it.node; cpu_ep = NULL; /* loop for all CPU endpoint */ while (1) { cpu_ep = of_get_next_child(cpu_port, cpu_ep); if (!cpu_ep) break; /* get codec */ codec_ep = of_graph_get_remote_endpoint(cpu_ep); codec_port = ep_to_port(codec_ep); /* get convert-xxx property */ memset(&adata, 0, sizeof(adata)); graph_parse_convert(dev, codec_ep, &adata); graph_parse_convert(dev, cpu_ep, &adata); /* check if link requires DPCM parsing */ if (parse_as_dpcm_link(priv, codec_port, &adata)) { /* * Codec endpoint can be NULL for pluggable audio HW. * Platform DT can populate the Codec endpoint depending on the * plugged HW. */ /* Do it all CPU endpoint, and 1st Codec endpoint */ if (li->cpu || ((codec_port_old != codec_port) && codec_ep)) ret = func_dpcm(priv, cpu_ep, codec_ep, li); /* else normal sound */ } else { if (li->cpu) ret = func_noml(priv, cpu_ep, codec_ep, li); } of_node_put(codec_ep); of_node_put(codec_port); if (ret < 0) { of_node_put(cpu_ep); return ret; } codec_port_old = codec_port; } } return 0; } static int graph_for_each_link(struct simple_util_priv *priv, struct link_info *li, int (*func_noml)(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li), int (*func_dpcm)(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li)) { int ret; /* * Detect all CPU first, and Detect all Codec 2nd. * * In Normal sound case, all DAIs are detected * as "CPU-Codec". * * In DPCM sound case, * all CPUs are detected as "CPU-dummy", and * all Codecs are detected as "dummy-Codec". * To avoid random sub-device numbering, * detect "dummy-Codec" in last; */ for (li->cpu = 1; li->cpu >= 0; li->cpu--) { ret = __graph_for_each_link(priv, li, func_noml, func_dpcm); if (ret < 0) break; } return ret; } static int graph_count_noml(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li) { struct device *dev = simple_priv_to_dev(priv); if (li->link >= SNDRV_MAX_LINKS) { dev_err(dev, "too many links\n"); return -EINVAL; } /* * DON'T REMOVE platforms * see * simple-card.c :: simple_count_noml() */ li->num[li->link].cpus = 1; li->num[li->link].platforms = 1; li->num[li->link].codecs = 1; li->link += 1; /* 1xCPU-Codec */ dev_dbg(dev, "Count As Normal\n"); return 0; } static int graph_count_dpcm(struct simple_util_priv *priv, struct device_node *cpu_ep, struct device_node *codec_ep, struct link_info *li) { struct device *dev = simple_priv_to_dev(priv); if (li->link >= SNDRV_MAX_LINKS) { dev_err(dev, "too many links\n"); return -EINVAL; } if (li->cpu) { /* * DON'T REMOVE platforms * see * simple-card.c :: simple_count_noml() */ li->num[li->link].cpus = 1; li->num[li->link].platforms = 1; li->link++; /* 1xCPU-dummy */ } else { li->num[li->link].codecs = 1; li->link++; /* 1xdummy-Codec */ } dev_dbg(dev, "Count As DPCM\n"); return 0; } static int graph_get_dais_count(struct simple_util_priv *priv, struct link_info *li) { /* * link_num : number of links. * CPU-Codec / CPU-dummy / dummy-Codec * dais_num : number of DAIs * ccnf_num : number of codec_conf * same number for "dummy-Codec" * * ex1) * CPU0 --- Codec0 link : 5 * CPU1 --- Codec1 dais : 7 * CPU2 -/ ccnf : 1 * CPU3 --- Codec2 * * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec * => 7 DAIs = 4xCPU + 3xCodec * => 1 ccnf = 1xdummy-Codec * * ex2) * CPU0 --- Codec0 link : 5 * CPU1 --- Codec1 dais : 6 * CPU2 -/ ccnf : 1 * CPU3 -/ * * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec * => 6 DAIs = 4xCPU + 2xCodec * => 1 ccnf = 1xdummy-Codec * * ex3) * CPU0 --- Codec0 link : 6 * CPU1 -/ dais : 6 * CPU2 --- Codec1 ccnf : 2 * CPU3 -/ * * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec * => 6 DAIs = 4xCPU + 2xCodec * => 2 ccnf = 2xdummy-Codec * * ex4) * CPU0 --- Codec0 (convert-rate) link : 3 * CPU1 --- Codec1 dais : 4 * ccnf : 1 * * => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec * => 4 DAIs = 2xCPU + 2xCodec * => 1 ccnf = 1xdummy-Codec */ return graph_for_each_link(priv, li, graph_count_noml, graph_count_dpcm); } int audio_graph_parse_of(struct simple_util_priv *priv, struct device *dev) { struct snd_soc_card *card = simple_priv_to_card(priv); int ret; struct link_info *li __free(kfree) = kzalloc(sizeof(*li), GFP_KERNEL); if (!li) return -ENOMEM; card->owner = THIS_MODULE; card->dev = dev; ret = graph_get_dais_count(priv, li); if (ret < 0) return ret; if (!li->link) return -EINVAL; ret = simple_util_init_priv(priv, li); if (ret < 0) return ret; priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW); if (IS_ERR(priv->pa_gpio)) { ret = PTR_ERR(priv->pa_gpio); dev_err(dev, "failed to get amplifier gpio: %d\n", ret); return ret; } ret = simple_util_parse_widgets(card, NULL); if (ret < 0) return ret; ret = simple_util_parse_routing(card, NULL); if (ret < 0) return ret; memset(li, 0, sizeof(*li)); ret = graph_for_each_link(priv, li, graph_dai_link_of, graph_dai_link_of_dpcm); if (ret < 0) goto err; ret = simple_util_parse_card_name(card, NULL); if (ret < 0) goto err; snd_soc_card_set_drvdata(card, priv); simple_util_debug_info(priv); ret = devm_snd_soc_register_card(dev, card); if (ret < 0) goto err; return 0; err: simple_util_clean_reference(card); return dev_err_probe(dev, ret, "parse error\n"); } EXPORT_SYMBOL_GPL(audio_graph_parse_of); static int graph_probe(struct platform_device *pdev) { struct simple_util_priv *priv; struct device *dev = &pdev->dev; struct snd_soc_card *card; /* Allocate the private data and the DAI link array */ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; card = simple_priv_to_card(priv); card->dapm_widgets = graph_dapm_widgets; card->num_dapm_widgets = ARRAY_SIZE(graph_dapm_widgets); card->probe = graph_util_card_probe; if (of_device_get_match_data(dev)) priv->dpcm_selectable = 1; return audio_graph_parse_of(priv, dev); } static const struct of_device_id graph_of_match[] = { { .compatible = "audio-graph-card", }, { .compatible = "audio-graph-scu-card", .data = (void *)DPCM_SELECTABLE }, {}, }; MODULE_DEVICE_TABLE(of, graph_of_match); static struct platform_driver graph_card = { .driver = { .name = "asoc-audio-graph-card", .pm = &snd_soc_pm_ops, .of_match_table = graph_of_match, }, .probe = graph_probe, .remove_new = simple_util_remove, }; module_platform_driver(graph_card); MODULE_ALIAS("platform:asoc-audio-graph-card"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("ASoC Audio Graph Sound Card"); MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
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