| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kuninori Morimoto | 2643 | 84.39% | 15 | 71.43% |
| Shawn Guo | 214 | 6.83% | 1 | 4.76% |
| Olivier Moysan | 176 | 5.62% | 1 | 4.76% |
| Katsuhiro Suzuki | 87 | 2.78% | 1 | 4.76% |
| Tony Lindgren | 7 | 0.22% | 1 | 4.76% |
| Kees Cook | 4 | 0.13% | 1 | 4.76% |
| Bhumika Goyal | 1 | 0.03% | 1 | 4.76% |
| Total | 3132 | 21 |
// 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/clk.h> #include <linux/device.h> #include <linux/gpio.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/string.h> #include <sound/simple_card_utils.h> struct graph_card_data { struct snd_soc_card snd_card; struct graph_dai_props { struct asoc_simple_dai *cpu_dai; struct asoc_simple_dai *codec_dai; struct snd_soc_dai_link_component codecs; /* single codec */ struct snd_soc_dai_link_component platform; struct asoc_simple_card_data adata; struct snd_soc_codec_conf *codec_conf; 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_codec_conf *codec_conf; struct gpio_desc *pa_gpio; }; #define graph_priv_to_card(priv) (&(priv)->snd_card) #define graph_priv_to_props(priv, i) ((priv)->dai_props + (i)) #define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev) #define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i)) #define PREFIX "audio-graph-card," static int asoc_graph_card_outdrv_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct graph_card_data *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 asoc_graph_card_dapm_widgets[] = { SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM, 0, 0, NULL, 0, asoc_graph_card_outdrv_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), }; static int asoc_graph_card_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); int ret; ret = asoc_simple_card_clk_enable(dai_props->cpu_dai); if (ret) return ret; ret = asoc_simple_card_clk_enable(dai_props->codec_dai); if (ret) asoc_simple_card_clk_disable(dai_props->cpu_dai); return ret; } static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); asoc_simple_card_clk_disable(dai_props->cpu_dai); asoc_simple_card_clk_disable(dai_props->codec_dai); } static int asoc_graph_card_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); unsigned int mclk, mclk_fs = 0; int ret = 0; if (dai_props->mclk_fs) mclk_fs = dai_props->mclk_fs; if (mclk_fs) { mclk = params_rate(params) * mclk_fs; ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); if (ret && ret != -ENOTSUPP) goto err; ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, SND_SOC_CLOCK_OUT); if (ret && ret != -ENOTSUPP) goto err; } return 0; err: return ret; } static const struct snd_soc_ops asoc_graph_card_ops = { .startup = asoc_graph_card_startup, .shutdown = asoc_graph_card_shutdown, .hw_params = asoc_graph_card_hw_params, }; static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd) { struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); int ret = 0; ret = asoc_simple_card_init_dai(rtd->codec_dai, dai_props->codec_dai); if (ret < 0) return ret; ret = asoc_simple_card_init_dai(rtd->cpu_dai, dai_props->cpu_dai); if (ret < 0) return ret; return 0; } static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num); asoc_simple_card_convert_fixup(&dai_props->adata, params); return 0; } static int asoc_graph_card_dai_link_of_dpcm(struct device_node *top, struct device_node *cpu_ep, struct device_node *codec_ep, struct graph_card_data *priv, int *dai_idx, int link_idx, int *conf_idx, int is_cpu) { struct device *dev = graph_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, link_idx); struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx); struct device_node *ep = is_cpu ? cpu_ep : codec_ep; struct device_node *port = of_get_parent(ep); struct device_node *ports = of_get_parent(port); struct device_node *node = of_graph_get_port_parent(ep); struct asoc_simple_dai *dai; struct snd_soc_dai_link_component *codecs = dai_link->codecs; int ret; dev_dbg(dev, "link_of DPCM (for %s)\n", is_cpu ? "CPU" : "Codec"); of_property_read_u32(top, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ports, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(port, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(ep, "mclk-fs", &dai_props->mclk_fs); asoc_simple_card_parse_convert(dev, top, NULL, &dai_props->adata); asoc_simple_card_parse_convert(dev, node, PREFIX, &dai_props->adata); asoc_simple_card_parse_convert(dev, ports, NULL, &dai_props->adata); asoc_simple_card_parse_convert(dev, port, NULL, &dai_props->adata); asoc_simple_card_parse_convert(dev, ep, NULL, &dai_props->adata); of_node_put(ports); of_node_put(port); if (is_cpu) { /* BE is dummy */ codecs->of_node = NULL; codecs->dai_name = "snd-soc-dummy-dai"; codecs->name = "snd-soc-dummy"; /* FE settings */ dai_link->dynamic = 1; dai_link->dpcm_merged_format = 1; dai = dai_props->cpu_dai = &priv->dais[(*dai_idx)++]; ret = asoc_simple_card_parse_graph_cpu(ep, dai_link); if (ret) return ret; ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai); if (ret < 0) return ret; ret = asoc_simple_card_set_dailink_name(dev, dai_link, "fe.%s", dai_link->cpu_dai_name); if (ret < 0) return ret; /* card->num_links includes Codec */ asoc_simple_card_canonicalize_cpu(dai_link, of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1); } else { struct snd_soc_codec_conf *cconf; /* FE is dummy */ dai_link->cpu_of_node = NULL; dai_link->cpu_dai_name = "snd-soc-dummy-dai"; dai_link->cpu_name = "snd-soc-dummy"; /* BE settings */ dai_link->no_pcm = 1; dai_link->be_hw_params_fixup = asoc_graph_card_be_hw_params_fixup; dai = dai_props->codec_dai = &priv->dais[(*dai_idx)++]; cconf = dai_props->codec_conf = &priv->codec_conf[(*conf_idx)++]; ret = asoc_simple_card_parse_graph_codec(ep, dai_link); if (ret < 0) return ret; ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai); if (ret < 0) return ret; ret = asoc_simple_card_set_dailink_name(dev, dai_link, "be.%s", codecs->dai_name); if (ret < 0) return ret; /* check "prefix" from top node */ snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node, "prefix"); snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node, PREFIX "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"); } ret = asoc_simple_card_of_parse_tdm(ep, dai); if (ret) return ret; ret = asoc_simple_card_canonicalize_dailink(dai_link); if (ret < 0) return ret; ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep, NULL, &dai_link->dai_fmt); if (ret < 0) return ret; dai_link->dpcm_playback = 1; dai_link->dpcm_capture = 1; dai_link->ops = &asoc_graph_card_ops; dai_link->init = asoc_graph_card_dai_init; return 0; } static int asoc_graph_card_dai_link_of(struct device_node *top, struct device_node *cpu_ep, struct device_node *codec_ep, struct graph_card_data *priv, int *dai_idx, int link_idx) { struct device *dev = graph_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, link_idx); struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx); struct device_node *cpu_port = of_get_parent(cpu_ep); struct device_node *codec_port = of_get_parent(codec_ep); struct device_node *cpu_ports = of_get_parent(cpu_port); struct device_node *codec_ports = of_get_parent(codec_port); struct asoc_simple_dai *cpu_dai; struct asoc_simple_dai *codec_dai; int ret; dev_dbg(dev, "link_of\n"); cpu_dai = dai_props->cpu_dai = &priv->dais[(*dai_idx)++]; codec_dai = dai_props->codec_dai = &priv->dais[(*dai_idx)++]; /* Factor to mclk, used in hw_params() */ of_property_read_u32(top, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(cpu_ports, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(codec_ports, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(cpu_port, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(codec_port, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(cpu_ep, "mclk-fs", &dai_props->mclk_fs); of_property_read_u32(codec_ep, "mclk-fs", &dai_props->mclk_fs); of_node_put(cpu_port); of_node_put(cpu_ports); of_node_put(codec_port); of_node_put(codec_ports); ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep, NULL, &dai_link->dai_fmt); if (ret < 0) return ret; ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link); if (ret < 0) return ret; ret = asoc_simple_card_parse_graph_codec(codec_ep, dai_link); if (ret < 0) return ret; ret = asoc_simple_card_of_parse_tdm(cpu_ep, cpu_dai); if (ret < 0) return ret; ret = asoc_simple_card_of_parse_tdm(codec_ep, codec_dai); if (ret < 0) return ret; ret = asoc_simple_card_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai); if (ret < 0) return ret; ret = asoc_simple_card_parse_clk_codec(dev, codec_ep, dai_link, codec_dai); if (ret < 0) return ret; ret = asoc_simple_card_canonicalize_dailink(dai_link); if (ret < 0) return ret; ret = asoc_simple_card_set_dailink_name(dev, dai_link, "%s-%s", dai_link->cpu_dai_name, dai_link->codecs->dai_name); if (ret < 0) return ret; dai_link->ops = &asoc_graph_card_ops; dai_link->init = asoc_graph_card_dai_init; asoc_simple_card_canonicalize_cpu(dai_link, of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1); return 0; } static int asoc_graph_card_parse_of(struct graph_card_data *priv) { struct of_phandle_iterator it; struct device *dev = graph_priv_to_dev(priv); struct snd_soc_card *card = graph_priv_to_card(priv); struct device_node *top = dev->of_node; struct device_node *node = top; struct device_node *cpu_port; struct device_node *cpu_ep = NULL; struct device_node *codec_ep = NULL; struct device_node *codec_port = NULL; struct device_node *codec_port_old = NULL; int rc, ret; int link_idx, dai_idx, conf_idx; int cpu; ret = asoc_simple_card_of_parse_widgets(card, NULL); if (ret < 0) return ret; ret = asoc_simple_card_of_parse_routing(card, NULL); if (ret < 0) return ret; link_idx = 0; dai_idx = 0; conf_idx = 0; codec_port_old = NULL; for (cpu = 1; cpu >= 0; cpu--) { /* * 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; */ of_for_each_phandle(&it, rc, node, "dais", NULL, 0) { cpu_port = it.node; cpu_ep = NULL; while (1) { cpu_ep = of_get_next_child(cpu_port, cpu_ep); if (!cpu_ep) break; codec_ep = of_graph_get_remote_endpoint(cpu_ep); codec_port = of_get_parent(codec_ep); of_node_put(codec_ep); of_node_put(codec_port); dev_dbg(dev, "%pOFf <-> %pOFf\n", cpu_ep, codec_ep); if (of_get_child_count(codec_port) > 1) { /* * for DPCM sound */ if (!cpu) { if (codec_port_old == codec_port) continue; codec_port_old = codec_port; } ret = asoc_graph_card_dai_link_of_dpcm( top, cpu_ep, codec_ep, priv, &dai_idx, link_idx++, &conf_idx, cpu); } else if (cpu) { /* * for Normal sound */ ret = asoc_graph_card_dai_link_of( top, cpu_ep, codec_ep, priv, &dai_idx, link_idx++); } if (ret < 0) return ret; } } } return asoc_simple_card_parse_card_name(card, NULL); } static void asoc_graph_get_dais_count(struct device *dev, int *link_num, int *dais_num, int *ccnf_num) { struct of_phandle_iterator it; 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; struct device_node *codec_port_old2; int rc; /* * 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 */ codec_port_old = NULL; codec_port_old2 = NULL; of_for_each_phandle(&it, rc, node, "dais", NULL, 0) { cpu_port = it.node; cpu_ep = NULL; while (1) { cpu_ep = of_get_next_child(cpu_port, cpu_ep); if (!cpu_ep) break; codec_ep = of_graph_get_remote_endpoint(cpu_ep); codec_port = of_get_parent(codec_ep); of_node_put(codec_ep); of_node_put(codec_port); (*link_num)++; (*dais_num)++; if (codec_port_old == codec_port) { if (codec_port_old2 != codec_port_old) { (*link_num)++; (*ccnf_num)++; } codec_port_old2 = codec_port_old; continue; } (*dais_num)++; codec_port_old = codec_port; } } } static int asoc_graph_soc_card_probe(struct snd_soc_card *card) { struct graph_card_data *priv = snd_soc_card_get_drvdata(card); int ret; ret = asoc_simple_card_init_hp(card, &priv->hp_jack, NULL); if (ret < 0) return ret; ret = asoc_simple_card_init_mic(card, &priv->mic_jack, NULL); if (ret < 0) return ret; return 0; } static int asoc_graph_card_probe(struct platform_device *pdev) { struct graph_card_data *priv; struct snd_soc_dai_link *dai_link; struct graph_dai_props *dai_props; struct asoc_simple_dai *dais; struct device *dev = &pdev->dev; struct snd_soc_card *card; struct snd_soc_codec_conf *cconf; int lnum = 0, dnum = 0, cnum = 0; int ret, i; /* Allocate the private data and the DAI link array */ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; asoc_graph_get_dais_count(dev, &lnum, &dnum, &cnum); if (!lnum || !dnum) return -EINVAL; dai_props = devm_kcalloc(dev, lnum, sizeof(*dai_props), GFP_KERNEL); dai_link = devm_kcalloc(dev, lnum, sizeof(*dai_link), GFP_KERNEL); dais = devm_kcalloc(dev, dnum, sizeof(*dais), GFP_KERNEL); cconf = devm_kcalloc(dev, cnum, sizeof(*cconf), GFP_KERNEL); if (!dai_props || !dai_link || !dais) return -ENOMEM; /* * Use snd_soc_dai_link_component instead of legacy style * It is codec only. but cpu/platform will be supported in the future. * see * soc-core.c :: snd_soc_init_multicodec() */ for (i = 0; i < lnum; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; dai_link[i].platform = &dai_props[i].platform; } 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; } priv->dai_props = dai_props; priv->dai_link = dai_link; priv->dais = dais; priv->codec_conf = cconf; /* Init snd_soc_card */ card = graph_priv_to_card(priv); card->owner = THIS_MODULE; card->dev = dev; card->dai_link = dai_link; card->num_links = lnum; card->dapm_widgets = asoc_graph_card_dapm_widgets; card->num_dapm_widgets = ARRAY_SIZE(asoc_graph_card_dapm_widgets); card->probe = asoc_graph_soc_card_probe; card->codec_conf = cconf; card->num_configs = cnum; ret = asoc_graph_card_parse_of(priv); if (ret < 0) { if (ret != -EPROBE_DEFER) dev_err(dev, "parse error %d\n", ret); goto err; } snd_soc_card_set_drvdata(card, priv); ret = devm_snd_soc_register_card(dev, card); if (ret < 0) goto err; return 0; err: asoc_simple_card_clean_reference(card); return ret; } static int asoc_graph_card_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); return asoc_simple_card_clean_reference(card); } static const struct of_device_id asoc_graph_of_match[] = { { .compatible = "audio-graph-card", }, { .compatible = "audio-graph-scu-card", }, {}, }; MODULE_DEVICE_TABLE(of, asoc_graph_of_match); static struct platform_driver asoc_graph_card = { .driver = { .name = "asoc-audio-graph-card", .pm = &snd_soc_pm_ops, .of_match_table = asoc_graph_of_match, }, .probe = asoc_graph_card_probe, .remove = asoc_graph_card_remove, }; module_platform_driver(asoc_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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