846 строки
21 KiB
C
846 строки
21 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// ASoC simple sound card support
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//
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// Copyright (C) 2012 Renesas Solutions Corp.
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// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/string.h>
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#include <sound/simple_card.h>
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#include <sound/soc-dai.h>
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#include <sound/soc.h>
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struct 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 codecs; /* single codec */
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struct snd_soc_dai_link_component platforms;
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struct asoc_simple_card_data adata;
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struct snd_soc_codec_conf *codec_conf;
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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_codec_conf *codec_conf;
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};
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struct link_info {
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int dais; /* number of dai */
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int link; /* number of link */
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int conf; /* number of codec_conf */
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int cpu; /* turn for CPU / Codec */
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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 DAI "sound-dai"
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#define CELL "#sound-dai-cells"
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#define PREFIX "simple-audio-card,"
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static int simple_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
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struct simple_dai_props *dai_props =
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simple_priv_to_props(priv, rtd->num);
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int ret;
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ret = asoc_simple_card_clk_enable(dai_props->cpu_dai);
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if (ret)
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return ret;
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ret = asoc_simple_card_clk_enable(dai_props->codec_dai);
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if (ret)
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asoc_simple_card_clk_disable(dai_props->cpu_dai);
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return ret;
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}
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static void simple_shutdown(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
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struct simple_dai_props *dai_props =
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simple_priv_to_props(priv, rtd->num);
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asoc_simple_card_clk_disable(dai_props->cpu_dai);
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asoc_simple_card_clk_disable(dai_props->codec_dai);
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}
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static int simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
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unsigned long rate)
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{
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if (!simple_dai)
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return 0;
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if (!simple_dai->clk)
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return 0;
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if (clk_get_rate(simple_dai->clk) == rate)
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return 0;
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return clk_set_rate(simple_dai->clk, rate);
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}
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static int simple_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
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struct simple_dai_props *dai_props =
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simple_priv_to_props(priv, rtd->num);
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unsigned int mclk, mclk_fs = 0;
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int ret = 0;
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if (dai_props->mclk_fs)
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mclk_fs = dai_props->mclk_fs;
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if (mclk_fs) {
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mclk = params_rate(params) * mclk_fs;
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ret = simple_set_clk_rate(dai_props->codec_dai, mclk);
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if (ret < 0)
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return ret;
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ret = simple_set_clk_rate(dai_props->cpu_dai, mclk);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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SND_SOC_CLOCK_IN);
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if (ret && ret != -ENOTSUPP)
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goto err;
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
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SND_SOC_CLOCK_OUT);
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if (ret && ret != -ENOTSUPP)
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goto err;
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}
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return 0;
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err:
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return ret;
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}
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static const struct snd_soc_ops simple_ops = {
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.startup = simple_startup,
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.shutdown = simple_shutdown,
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.hw_params = simple_hw_params,
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};
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static int simple_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
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struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
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int ret;
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ret = asoc_simple_card_init_dai(rtd->codec_dai,
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dai_props->codec_dai);
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if (ret < 0)
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return ret;
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ret = asoc_simple_card_init_dai(rtd->cpu_dai,
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dai_props->cpu_dai);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int 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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{
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struct simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
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struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
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asoc_simple_card_convert_fixup(&dai_props->adata, params);
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return 0;
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}
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static void simple_get_conversion(struct device *dev,
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struct device_node *np,
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struct asoc_simple_card_data *adata)
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{
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struct device_node *top = dev->of_node;
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struct device_node *node = of_get_parent(np);
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asoc_simple_card_parse_convert(dev, top, PREFIX, adata);
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asoc_simple_card_parse_convert(dev, node, PREFIX, adata);
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asoc_simple_card_parse_convert(dev, node, NULL, adata);
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asoc_simple_card_parse_convert(dev, np, NULL, adata);
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of_node_put(node);
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}
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static int simple_dai_link_of_dpcm(struct simple_priv *priv,
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struct device_node *np,
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struct device_node *codec,
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struct link_info *li,
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bool is_top)
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{
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struct device *dev = simple_priv_to_dev(priv);
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struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
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struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
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struct asoc_simple_dai *dai;
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struct snd_soc_dai_link_component *codecs = dai_link->codecs;
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struct device_node *top = dev->of_node;
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struct device_node *node = of_get_parent(np);
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char prop[128];
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char *prefix = "";
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int ret;
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/*
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* |CPU |Codec : turn
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* CPU |Pass |return
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* Codec |return|Pass
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* np
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*/
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if (li->cpu == (np == codec))
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return 0;
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dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
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li->link++;
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of_node_put(node);
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/* For single DAI link & old style of DT node */
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if (is_top)
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prefix = PREFIX;
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if (li->cpu) {
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int is_single_links = 0;
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/* BE is dummy */
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codecs->of_node = NULL;
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codecs->dai_name = "snd-soc-dummy-dai";
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codecs->name = "snd-soc-dummy";
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/* FE settings */
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dai_link->dynamic = 1;
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dai_link->dpcm_merged_format = 1;
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dai =
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dai_props->cpu_dai = &priv->dais[li->dais++];
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ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
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&is_single_links);
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if (ret)
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return ret;
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ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai);
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if (ret < 0)
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return ret;
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ret = asoc_simple_card_set_dailink_name(dev, dai_link,
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"fe.%s",
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dai_link->cpu_dai_name);
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if (ret < 0)
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return ret;
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asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
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} else {
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struct snd_soc_codec_conf *cconf;
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/* FE is dummy */
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dai_link->cpu_of_node = NULL;
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dai_link->cpu_dai_name = "snd-soc-dummy-dai";
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dai_link->cpu_name = "snd-soc-dummy";
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/* BE settings */
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dai_link->no_pcm = 1;
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dai_link->be_hw_params_fixup = simple_be_hw_params_fixup;
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dai =
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dai_props->codec_dai = &priv->dais[li->dais++];
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cconf =
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dai_props->codec_conf = &priv->codec_conf[li->conf++];
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ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
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if (ret < 0)
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return ret;
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ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai);
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if (ret < 0)
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return ret;
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ret = asoc_simple_card_set_dailink_name(dev, dai_link,
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"be.%s",
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codecs->dai_name);
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if (ret < 0)
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return ret;
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/* check "prefix" from top node */
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snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
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PREFIX "prefix");
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snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
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"prefix");
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snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,
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"prefix");
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}
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simple_get_conversion(dev, np, &dai_props->adata);
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asoc_simple_card_canonicalize_platform(dai_link);
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ret = asoc_simple_card_of_parse_tdm(np, dai);
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if (ret)
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return ret;
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snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
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of_property_read_u32(top, PREFIX "mclk-fs", &dai_props->mclk_fs);
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of_property_read_u32(node, prop, &dai_props->mclk_fs);
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of_property_read_u32(np, prop, &dai_props->mclk_fs);
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ret = asoc_simple_card_parse_daifmt(dev, node, codec,
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prefix, &dai_link->dai_fmt);
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if (ret < 0)
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return ret;
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dai_link->dpcm_playback = 1;
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dai_link->dpcm_capture = 1;
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dai_link->ops = &simple_ops;
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dai_link->init = simple_dai_init;
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return 0;
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}
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static int simple_dai_link_of(struct simple_priv *priv,
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struct device_node *np,
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struct device_node *codec,
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struct link_info *li,
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bool is_top)
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{
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struct device *dev = simple_priv_to_dev(priv);
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struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
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struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
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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 device_node *top = dev->of_node;
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struct device_node *cpu = NULL;
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struct device_node *node = NULL;
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struct device_node *plat = NULL;
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char prop[128];
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char *prefix = "";
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int ret, single_cpu;
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/*
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* |CPU |Codec : turn
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* CPU |Pass |return
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* Codec |return|return
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* np
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*/
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if (!li->cpu || np == codec)
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return 0;
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cpu = np;
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node = of_get_parent(np);
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li->link++;
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dev_dbg(dev, "link_of (%pOF)\n", node);
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/* For single DAI link & old style of DT node */
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if (is_top)
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prefix = PREFIX;
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snprintf(prop, sizeof(prop), "%splat", prefix);
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plat = of_get_child_by_name(node, prop);
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cpu_dai =
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dai_props->cpu_dai = &priv->dais[li->dais++];
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codec_dai =
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dai_props->codec_dai = &priv->dais[li->dais++];
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ret = asoc_simple_card_parse_daifmt(dev, node, codec,
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prefix, &dai_link->dai_fmt);
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if (ret < 0)
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goto dai_link_of_err;
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snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
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of_property_read_u32(top, PREFIX "mclk-fs", &dai_props->mclk_fs);
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of_property_read_u32(node, prop, &dai_props->mclk_fs);
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of_property_read_u32(cpu, prop, &dai_props->mclk_fs);
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of_property_read_u32(codec, prop, &dai_props->mclk_fs);
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ret = asoc_simple_card_parse_cpu(cpu, dai_link,
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DAI, CELL, &single_cpu);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_of_parse_tdm(cpu, cpu_dai);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_of_parse_tdm(codec, codec_dai);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_parse_clk_codec(dev, codec, dai_link, codec_dai);
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if (ret < 0)
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goto dai_link_of_err;
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ret = asoc_simple_card_set_dailink_name(dev, dai_link,
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"%s-%s",
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dai_link->cpu_dai_name,
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dai_link->codecs->dai_name);
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if (ret < 0)
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goto dai_link_of_err;
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dai_link->ops = &simple_ops;
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dai_link->init = simple_dai_init;
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asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
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asoc_simple_card_canonicalize_platform(dai_link);
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dai_link_of_err:
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of_node_put(plat);
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of_node_put(node);
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return ret;
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}
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static int simple_for_each_link(struct simple_priv *priv,
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struct link_info *li,
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int (*func_noml)(struct simple_priv *priv,
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struct device_node *np,
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struct device_node *codec,
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struct link_info *li, bool is_top),
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int (*func_dpcm)(struct simple_priv *priv,
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struct device_node *np,
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struct device_node *codec,
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struct link_info *li, bool is_top))
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{
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struct device *dev = simple_priv_to_dev(priv);
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struct device_node *top = dev->of_node;
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struct device_node *node;
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bool is_top = 0;
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int ret = 0;
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/* Check if it has dai-link */
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node = of_get_child_by_name(top, PREFIX "dai-link");
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if (!node) {
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node = of_node_get(top);
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is_top = 1;
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}
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/* loop for all dai-link */
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do {
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struct asoc_simple_card_data adata;
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struct device_node *codec;
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struct device_node *np;
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int num = of_get_child_count(node);
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/* get codec */
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codec = of_get_child_by_name(node, is_top ?
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PREFIX "codec" : "codec");
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if (!codec) {
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ret = -ENODEV;
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goto error;
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}
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of_node_put(codec);
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/* get convert-xxx property */
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memset(&adata, 0, sizeof(adata));
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for_each_child_of_node(node, np)
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simple_get_conversion(dev, np, &adata);
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/* loop for all CPU/Codec node */
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for_each_child_of_node(node, np) {
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/*
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* It is DPCM
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* if it has many CPUs,
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* or has convert-xxx property
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*/
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if (num > 2 ||
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adata.convert_rate || adata.convert_channels)
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ret = func_dpcm(priv, np, codec, li, is_top);
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/* else normal sound */
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else
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ret = func_noml(priv, np, codec, li, is_top);
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if (ret < 0) {
|
|
of_node_put(np);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
node = of_get_next_child(top, node);
|
|
} while (!is_top && node);
|
|
|
|
error:
|
|
of_node_put(node);
|
|
return ret;
|
|
}
|
|
|
|
static int simple_parse_aux_devs(struct device_node *node,
|
|
struct simple_priv *priv)
|
|
{
|
|
struct device *dev = simple_priv_to_dev(priv);
|
|
struct device_node *aux_node;
|
|
struct snd_soc_card *card = simple_priv_to_card(priv);
|
|
int i, n, len;
|
|
|
|
if (!of_find_property(node, PREFIX "aux-devs", &len))
|
|
return 0; /* Ok to have no aux-devs */
|
|
|
|
n = len / sizeof(__be32);
|
|
if (n <= 0)
|
|
return -EINVAL;
|
|
|
|
card->aux_dev = devm_kcalloc(dev,
|
|
n, sizeof(*card->aux_dev), GFP_KERNEL);
|
|
if (!card->aux_dev)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
aux_node = of_parse_phandle(node, PREFIX "aux-devs", i);
|
|
if (!aux_node)
|
|
return -EINVAL;
|
|
card->aux_dev[i].codec_of_node = aux_node;
|
|
}
|
|
|
|
card->num_aux_devs = n;
|
|
return 0;
|
|
}
|
|
|
|
static int simple_parse_of(struct simple_priv *priv)
|
|
{
|
|
struct device *dev = simple_priv_to_dev(priv);
|
|
struct device_node *top = dev->of_node;
|
|
struct snd_soc_card *card = simple_priv_to_card(priv);
|
|
struct link_info li;
|
|
int ret;
|
|
|
|
if (!top)
|
|
return -EINVAL;
|
|
|
|
ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = asoc_simple_card_of_parse_routing(card, PREFIX);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Single/Muti DAI link(s) & New style of DT node */
|
|
memset(&li, 0, sizeof(li));
|
|
for (li.cpu = 1; li.cpu >= 0; li.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;
|
|
*/
|
|
ret = simple_for_each_link(priv, &li,
|
|
simple_dai_link_of,
|
|
simple_dai_link_of_dpcm);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = asoc_simple_card_parse_card_name(card, PREFIX);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = simple_parse_aux_devs(top, priv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int simple_count_noml(struct simple_priv *priv,
|
|
struct device_node *np,
|
|
struct device_node *codec,
|
|
struct link_info *li, bool is_top)
|
|
{
|
|
li->dais++; /* CPU or Codec */
|
|
if (np != codec)
|
|
li->link++; /* CPU-Codec */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int simple_count_dpcm(struct simple_priv *priv,
|
|
struct device_node *np,
|
|
struct device_node *codec,
|
|
struct link_info *li, bool is_top)
|
|
{
|
|
li->dais++; /* CPU or Codec */
|
|
li->link++; /* CPU-dummy or dummy-Codec */
|
|
if (np == codec)
|
|
li->conf++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void simple_get_dais_count(struct simple_priv *priv,
|
|
struct link_info *li)
|
|
{
|
|
struct device *dev = simple_priv_to_dev(priv);
|
|
struct device_node *top = dev->of_node;
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
if (!top) {
|
|
li->link = 1;
|
|
li->dais = 2;
|
|
li->conf = 0;
|
|
return;
|
|
}
|
|
|
|
simple_for_each_link(priv, li,
|
|
simple_count_noml,
|
|
simple_count_dpcm);
|
|
|
|
dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
|
|
li->link, li->dais, li->conf);
|
|
}
|
|
|
|
static int simple_soc_probe(struct snd_soc_card *card)
|
|
{
|
|
struct simple_priv *priv = snd_soc_card_get_drvdata(card);
|
|
int ret;
|
|
|
|
ret = asoc_simple_card_init_hp(card, &priv->hp_jack, PREFIX);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = asoc_simple_card_init_mic(card, &priv->mic_jack, PREFIX);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int simple_probe(struct platform_device *pdev)
|
|
{
|
|
struct simple_priv *priv;
|
|
struct snd_soc_dai_link *dai_link;
|
|
struct simple_dai_props *dai_props;
|
|
struct asoc_simple_dai *dais;
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *np = dev->of_node;
|
|
struct snd_soc_card *card;
|
|
struct snd_soc_codec_conf *cconf;
|
|
struct link_info li;
|
|
int ret, i;
|
|
|
|
/* 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->owner = THIS_MODULE;
|
|
card->dev = dev;
|
|
card->probe = simple_soc_probe;
|
|
|
|
memset(&li, 0, sizeof(li));
|
|
simple_get_dais_count(priv, &li);
|
|
if (!li.link || !li.dais)
|
|
return -EINVAL;
|
|
|
|
dai_props = devm_kcalloc(dev, li.link, sizeof(*dai_props), GFP_KERNEL);
|
|
dai_link = devm_kcalloc(dev, li.link, sizeof(*dai_link), GFP_KERNEL);
|
|
dais = devm_kcalloc(dev, li.dais, sizeof(*dais), GFP_KERNEL);
|
|
cconf = devm_kcalloc(dev, li.conf, 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 < li.link; i++) {
|
|
dai_link[i].codecs = &dai_props[i].codecs;
|
|
dai_link[i].num_codecs = 1;
|
|
dai_link[i].platforms = &dai_props[i].platforms;
|
|
dai_link[i].num_platforms = 1;
|
|
}
|
|
|
|
priv->dai_props = dai_props;
|
|
priv->dai_link = dai_link;
|
|
priv->dais = dais;
|
|
priv->codec_conf = cconf;
|
|
|
|
card->dai_link = priv->dai_link;
|
|
card->num_links = li.link;
|
|
card->codec_conf = cconf;
|
|
card->num_configs = li.conf;
|
|
|
|
if (np && of_device_is_available(np)) {
|
|
|
|
ret = simple_parse_of(priv);
|
|
if (ret < 0) {
|
|
if (ret != -EPROBE_DEFER)
|
|
dev_err(dev, "parse error %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
} else {
|
|
struct asoc_simple_card_info *cinfo;
|
|
struct snd_soc_dai_link_component *codecs;
|
|
struct snd_soc_dai_link_component *platform;
|
|
int dai_idx = 0;
|
|
|
|
cinfo = dev->platform_data;
|
|
if (!cinfo) {
|
|
dev_err(dev, "no info for asoc-simple-card\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!cinfo->name ||
|
|
!cinfo->codec_dai.name ||
|
|
!cinfo->codec ||
|
|
!cinfo->platform ||
|
|
!cinfo->cpu_dai.name) {
|
|
dev_err(dev, "insufficient asoc_simple_card_info settings\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dai_props->cpu_dai = &priv->dais[dai_idx++];
|
|
dai_props->codec_dai = &priv->dais[dai_idx++];
|
|
|
|
codecs = dai_link->codecs;
|
|
codecs->name = cinfo->codec;
|
|
codecs->dai_name = cinfo->codec_dai.name;
|
|
|
|
platform = dai_link->platforms;
|
|
platform->name = cinfo->platform;
|
|
|
|
card->name = (cinfo->card) ? cinfo->card : cinfo->name;
|
|
dai_link->name = cinfo->name;
|
|
dai_link->stream_name = cinfo->name;
|
|
dai_link->cpu_dai_name = cinfo->cpu_dai.name;
|
|
dai_link->dai_fmt = cinfo->daifmt;
|
|
dai_link->init = simple_dai_init;
|
|
memcpy(priv->dai_props->cpu_dai, &cinfo->cpu_dai,
|
|
sizeof(*priv->dai_props->cpu_dai));
|
|
memcpy(priv->dai_props->codec_dai, &cinfo->codec_dai,
|
|
sizeof(*priv->dai_props->codec_dai));
|
|
}
|
|
|
|
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 simple_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 simple_of_match[] = {
|
|
{ .compatible = "simple-audio-card", },
|
|
{ .compatible = "simple-scu-audio-card", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, simple_of_match);
|
|
|
|
static struct platform_driver asoc_simple_card = {
|
|
.driver = {
|
|
.name = "asoc-simple-card",
|
|
.pm = &snd_soc_pm_ops,
|
|
.of_match_table = simple_of_match,
|
|
},
|
|
.probe = simple_probe,
|
|
.remove = simple_remove,
|
|
};
|
|
|
|
module_platform_driver(asoc_simple_card);
|
|
|
|
MODULE_ALIAS("platform:asoc-simple-card");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("ASoC Simple Sound Card");
|
|
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|