diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt | 75 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/sound/simple-scu-card.txt | 110 | ||||
| -rw-r--r-- | include/sound/simple_card_utils.h | 34 | ||||
| -rw-r--r-- | sound/soc/generic/Kconfig | 8 | ||||
| -rw-r--r-- | sound/soc/generic/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card-utils.c | 141 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card.c | 190 | ||||
| -rw-r--r-- | sound/soc/generic/simple-scu-card.c | 345 | ||||
| -rw-r--r-- | sound/soc/sh/Kconfig | 6 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/Makefile | 3 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 4 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsrc-card.c | 486 |
12 files changed, 682 insertions, 722 deletions
diff --git a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt b/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt deleted file mode 100644 index 255ece3..0000000 --- a/Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt +++ /dev/null @@ -1,75 +0,0 @@ -Renesas Sampling Rate Convert Sound Card: - -Renesas Sampling Rate Convert Sound Card specifies audio DAI connections of SoC <-> codec. - -Required properties: - -- compatible : "renesas,rsrc-card{,<board>}" - Examples with boards are: - - "renesas,rsrc-card" - - "renesas,rsrc-card,lager" - - "renesas,rsrc-card,koelsch" -Optional properties: - -- card_name : User specified audio sound card name, one string - property. -- cpu : CPU sub-node -- codec : CODEC sub-node - -Optional subnode properties: - -- format : CPU/CODEC common audio format. - "i2s", "right_j", "left_j" , "dsp_a" - "dsp_b", "ac97", "pdm", "msb", "lsb" -- frame-master : Indicates dai-link frame master. - phandle to a cpu or codec subnode. -- bitclock-master : Indicates dai-link bit clock master. - phandle to a cpu or codec subnode. -- bitclock-inversion : bool property. Add this if the - dai-link uses bit clock inversion. -- frame-inversion : bool property. Add this if the - dai-link uses frame clock inversion. -- convert-rate : platform specified sampling rate convert -- convert-channels : platform specified converted channel size (2 - 8 ch) -- audio-prefix : see audio-routing -- audio-routing : A list of the connections between audio components. - Each entry is a pair of strings, the first being the connection's sink, - the second being the connection's source. Valid names for sources. - use audio-prefix if some components is using same sink/sources naming. - it can be used if compatible was "renesas,rsrc-card"; - -Required CPU/CODEC subnodes properties: - -- sound-dai : phandle and port of CPU/CODEC - -Optional CPU/CODEC subnodes properties: - -- clocks / system-clock-frequency : specify subnode's clock if needed. - it can be specified via "clocks" if system has - clock node (= common clock), or "system-clock-frequency" - (if system doens't support common clock) - If a clock is specified, it is - enabled with clk_prepare_enable() - in dai startup() and disabled with - clk_disable_unprepare() in dai - shutdown(). - -Example - -sound { - compatible = "renesas,rsrc-card,lager"; - - card-name = "rsnd-ak4643"; - format = "left_j"; - bitclock-master = <&sndcodec>; - frame-master = <&sndcodec>; - - sndcpu: cpu { - sound-dai = <&rcar_sound>; - }; - - sndcodec: codec { - sound-dai = <&ak4643>; - system-clock-frequency = <11289600>; - }; -}; diff --git a/Documentation/devicetree/bindings/sound/simple-scu-card.txt b/Documentation/devicetree/bindings/sound/simple-scu-card.txt new file mode 100644 index 0000000..d6fe47e --- /dev/null +++ b/Documentation/devicetree/bindings/sound/simple-scu-card.txt @@ -0,0 +1,110 @@ +ASoC simple SCU Sound Card + +Simple-Card specifies audio DAI connections of SoC <-> codec. + +Required properties: + +- compatible : "simple-scu-audio-card" + "renesas,rsrc-card" + +Optional properties: + +- simple-audio-card,name : User specified audio sound card name, one string + property. +- simple-audio-card,cpu : CPU sub-node +- simple-audio-card,codec : CODEC sub-node + +Optional subnode properties: + +- simple-audio-card,format : CPU/CODEC common audio format. + "i2s", "right_j", "left_j" , "dsp_a" + "dsp_b", "ac97", "pdm", "msb", "lsb" +- simple-audio-card,frame-master : Indicates dai-link frame master. + phandle to a cpu or codec subnode. +- simple-audio-card,bitclock-master : Indicates dai-link bit clock master. + phandle to a cpu or codec subnode. +- simple-audio-card,bitclock-inversion : bool property. Add this if the + dai-link uses bit clock inversion. +- simple-audio-card,frame-inversion : bool property. Add this if the + dai-link uses frame clock inversion. +- simple-audio-card,convert-rate : platform specified sampling rate convert +- simple-audio-card,convert-channels : platform specified converted channel size (2 - 8 ch) +- simple-audio-card,prefix : see audio-routing +- simple-audio-card,routing : A list of the connections between audio components. + Each entry is a pair of strings, the first being the connection's sink, + the second being the connection's source. Valid names for sources. + use audio-prefix if some components is using same sink/sources naming. + it can be used if compatible was "renesas,rsrc-card"; + +Required CPU/CODEC subnodes properties: + +- sound-dai : phandle and port of CPU/CODEC + +Optional CPU/CODEC subnodes properties: + +- clocks / system-clock-frequency : specify subnode's clock if needed. + it can be specified via "clocks" if system has + clock node (= common clock), or "system-clock-frequency" + (if system doens't support common clock) + If a clock is specified, it is + enabled with clk_prepare_enable() + in dai startup() and disabled with + clk_disable_unprepare() in dai + shutdown(). + +Example 1. Sampling Rate Covert + +sound { + compatible = "simple-scu-audio-card"; + + simple-audio-card,name = "rsnd-ak4643"; + simple-audio-card,format = "left_j"; + simple-audio-card,format = "left_j"; + simple-audio-card,bitclock-master = <&sndcodec>; + simple-audio-card,frame-master = <&sndcodec>; + + simple-audio-card,convert-rate = <48000>; /* see audio_clk_a */ + + simple-audio-card,prefix = "ak4642"; + simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback", + "DAI0 Capture", "ak4642 Capture"; + + sndcpu: simple-audio-card,cpu { + sound-dai = <&rcar_sound>; + }; + + sndcodec: simple-audio-card,codec { + sound-dai = <&ak4643>; + system-clock-frequency = <11289600>; + }; +}; + +Example 2. 2 CPU 1 Codec + +sound { + compatible = "renesas,rsrc-card"; + + card-name = "rsnd-ak4643"; + format = "left_j"; + bitclock-master = <&dpcmcpu>; + frame-master = <&dpcmcpu>; + + convert-rate = <48000>; /* see audio_clk_a */ + + audio-prefix = "ak4642"; + audio-routing = "ak4642 Playback", "DAI0 Playback", + "ak4642 Playback", "DAI1 Playback"; + + dpcmcpu: cpu@0 { + sound-dai = <&rcar_sound 0>; + }; + + cpu@1 { + sound-dai = <&rcar_sound 1>; + }; + + codec { + sound-dai = <&ak4643>; + clocks = <&audio_clock>; + }; +}; diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 86088ae..403ec92 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -33,4 +33,38 @@ int asoc_simple_card_set_dailink_name(struct device *dev, int asoc_simple_card_parse_card_name(struct snd_soc_card *card, char *prefix); +#define asoc_simple_card_parse_clk_cpu(node, dai_link, simple_dai) \ + asoc_simple_card_parse_clk(node, dai_link->cpu_of_node, simple_dai) +#define asoc_simple_card_parse_clk_codec(node, dai_link, simple_dai) \ + asoc_simple_card_parse_clk(node, dai_link->codec_of_node, simple_dai) +int asoc_simple_card_parse_clk(struct device_node *node, + struct device_node *dai_of_node, + struct asoc_simple_dai *simple_dai); + +#define asoc_simple_card_parse_cpu(node, dai_link, \ + list_name, cells_name, is_single_link) \ + asoc_simple_card_parse_dai(node, &dai_link->cpu_of_node, \ + &dai_link->cpu_dai_name, list_name, cells_name, is_single_link) +#define asoc_simple_card_parse_codec(node, dai_link, list_name, cells_name) \ + asoc_simple_card_parse_dai(node, &dai_link->codec_of_node, \ + &dai_link->codec_dai_name, list_name, cells_name, NULL) +#define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name) \ + asoc_simple_card_parse_dai(node, &dai_link->platform_of_node, \ + NULL, list_name, cells_name, NULL) +int asoc_simple_card_parse_dai(struct device_node *node, + struct device_node **endpoint_np, + const char **dai_name, + const char *list_name, + const char *cells_name, + int *is_single_links); + +int asoc_simple_card_init_dai(struct snd_soc_dai *dai, + struct asoc_simple_dai *simple_dai); + +int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link); +void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link, + int is_single_links); + +int asoc_simple_card_clean_reference(struct snd_soc_card *card); + #endif /* __SIMPLE_CARD_CORE_H */ diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig index c01c5dd..d023959 100644 --- a/sound/soc/generic/Kconfig +++ b/sound/soc/generic/Kconfig @@ -6,3 +6,11 @@ config SND_SIMPLE_CARD select SND_SIMPLE_CARD_UTILS help This option enables generic simple sound card support + +config SND_SIMPLE_SCU_CARD + tristate "ASoC Simple SCU sound card support" + depends on OF + select SND_SIMPLE_CARD_UTILS + help + This option enables generic simple SCU sound card support. + It supports DPCM of multi CPU single Codec system. diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile index 2d53c8d..ee750f3 100644 --- a/sound/soc/generic/Makefile +++ b/sound/soc/generic/Makefile @@ -1,5 +1,7 @@ snd-soc-simple-card-utils-objs := simple-card-utils.o snd-soc-simple-card-objs := simple-card.o +snd-soc-simple-scu-card-objs := simple-scu-card.o obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) += snd-soc-simple-card-utils.o obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o +obj-$(CONFIG_SND_SIMPLE_SCU_CARD) += snd-soc-simple-scu-card.o diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 9599de6..1cb3930 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -7,6 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/clk.h> #include <linux/module.h> #include <linux/of.h> #include <sound/simple_card_utils.h> @@ -97,6 +98,146 @@ int asoc_simple_card_parse_card_name(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(asoc_simple_card_parse_card_name); +int asoc_simple_card_parse_clk(struct device_node *node, + struct device_node *dai_of_node, + struct asoc_simple_dai *simple_dai) +{ + struct clk *clk; + u32 val; + + /* + * Parse dai->sysclk come from "clocks = <&xxx>" + * (if system has common clock) + * or "system-clock-frequency = <xxx>" + * or device's module clock. + */ + clk = of_clk_get(node, 0); + if (!IS_ERR(clk)) { + simple_dai->sysclk = clk_get_rate(clk); + simple_dai->clk = clk; + } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) { + simple_dai->sysclk = val; + } else { + clk = of_clk_get(dai_of_node, 0); + if (!IS_ERR(clk)) + simple_dai->sysclk = clk_get_rate(clk); + } + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_parse_clk); + +int asoc_simple_card_parse_dai(struct device_node *node, + struct device_node **dai_of_node, + const char **dai_name, + const char *list_name, + const char *cells_name, + int *is_single_link) +{ + struct of_phandle_args args; + int ret; + + if (!node) + return 0; + + /* + * Get node via "sound-dai = <&phandle port>" + * it will be used as xxx_of_node on soc_bind_dai_link() + */ + ret = of_parse_phandle_with_args(node, list_name, cells_name, 0, &args); + if (ret) + return ret; + + /* Get dai->name */ + if (dai_name) { + ret = snd_soc_of_get_dai_name(node, dai_name); + if (ret < 0) + return ret; + } + + *dai_of_node = args.np; + + if (is_single_link) + *is_single_link = !args.args_count; + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai); + +int asoc_simple_card_init_dai(struct snd_soc_dai *dai, + struct asoc_simple_dai *simple_dai) +{ + int ret; + + if (simple_dai->sysclk) { + ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk, 0); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_sysclk error\n"); + return ret; + } + } + + if (simple_dai->slots) { + ret = snd_soc_dai_set_tdm_slot(dai, + simple_dai->tx_slot_mask, + simple_dai->rx_slot_mask, + simple_dai->slots, + simple_dai->slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai); + +int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link) +{ + if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) + return -EINVAL; + + /* Assumes platform == cpu */ + if (!dai_link->platform_of_node) + dai_link->platform_of_node = dai_link->cpu_of_node; + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_dailink); + +void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link, + int is_single_links) +{ + /* + * In soc_bind_dai_link() will check cpu name after + * of_node matching if dai_link has cpu_dai_name. + * but, it will never match if name was created by + * fmt_single_name() remove cpu_dai_name if cpu_args + * was 0. See: + * fmt_single_name() + * fmt_multiple_name() + */ + if (is_single_links) + dai_link->cpu_dai_name = NULL; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu); + +int asoc_simple_card_clean_reference(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *dai_link; + int num_links; + + for (num_links = 0, dai_link = card->dai_link; + num_links < card->num_links; + num_links++, dai_link++) { + of_node_put(dai_link->cpu_of_node); + of_node_put(dai_link->codec_of_node); + } + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference); + /* Module information */ MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); MODULE_DESCRIPTION("ALSA SoC Simple Card Utils"); diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 43295f0..55638a8 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -44,6 +44,8 @@ struct simple_card_data { #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i) #define simple_priv_to_props(priv, i) ((priv)->dai_props + i) +#define DAI "sound-dai" +#define CELL "#sound-dai-cells" #define PREFIX "simple-audio-card," #define asoc_simple_card_init_hp(card, sjack, prefix)\ @@ -177,51 +179,19 @@ static struct snd_soc_ops asoc_simple_card_ops = { .hw_params = asoc_simple_card_hw_params, }; -static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai, - struct asoc_simple_dai *set) -{ - int ret; - - if (set->sysclk) { - ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0); - if (ret && ret != -ENOTSUPP) { - dev_err(dai->dev, "simple-card: set_sysclk error\n"); - goto err; - } - } - - if (set->slots) { - ret = snd_soc_dai_set_tdm_slot(dai, - set->tx_slot_mask, - set->rx_slot_mask, - set->slots, - set->slot_width); - if (ret && ret != -ENOTSUPP) { - dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); - goto err; - } - } - - ret = 0; - -err: - return ret; -} - static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) { struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *codec = rtd->codec_dai; struct snd_soc_dai *cpu = rtd->cpu_dai; - struct simple_dai_props *dai_props; + struct simple_dai_props *dai_props = &priv->dai_props[rtd->num]; int ret; - dai_props = &priv->dai_props[rtd->num]; - ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai); + ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai); if (ret < 0) return ret; - ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai); + ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai); if (ret < 0) return ret; @@ -236,78 +206,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) return 0; } -static int -asoc_simple_card_sub_parse_of(struct device_node *np, - struct asoc_simple_dai *dai, - struct device_node **p_node, - const char **name, - int *args_count) -{ - struct of_phandle_args args; - struct clk *clk; - u32 val; - int ret; - - if (!np) - return 0; - - /* - * Get node via "sound-dai = <&phandle port>" - * it will be used as xxx_of_node on soc_bind_dai_link() - */ - ret = of_parse_phandle_with_args(np, "sound-dai", - "#sound-dai-cells", 0, &args); - if (ret) - return ret; - - *p_node = args.np; - - if (args_count) - *args_count = args.args_count; - - /* Get dai->name */ - if (name) { - ret = snd_soc_of_get_dai_name(np, name); - if (ret < 0) - return ret; - } - - if (!dai) - return 0; - - /* Parse TDM slot */ - ret = snd_soc_of_parse_tdm_slot(np, &dai->tx_slot_mask, - &dai->rx_slot_mask, - &dai->slots, &dai->slot_width); - if (ret) - return ret; - - /* - * Parse dai->sysclk come from "clocks = <&xxx>" - * (if system has common clock) - * or "system-clock-frequency = <xxx>" - * or device's module clock. - */ - if (of_property_read_bool(np, "clocks")) { - clk = of_clk_get(np, 0); - if (IS_ERR(clk)) { - ret = PTR_ERR(clk); - return ret; - } - - dai->sysclk = clk_get_rate(clk); - dai->clk = clk; - } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { - dai->sysclk = val; - } else { - clk = of_clk_get(args.np, 0); - if (!IS_ERR(clk)) - dai->sysclk = clk_get_rate(clk); - } - - return 0; -} - static int asoc_simple_card_dai_link_of(struct device_node *node, struct simple_card_data *priv, int idx, @@ -316,12 +214,14 @@ static int asoc_simple_card_dai_link_of(struct device_node *node, struct device *dev = simple_priv_to_dev(priv); struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx); + struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai; + struct asoc_simple_dai *codec_dai = &dai_props->codec_dai; struct device_node *cpu = NULL; struct device_node *plat = NULL; struct device_node *codec = NULL; char prop[128]; char *prefix = ""; - int ret, cpu_args; + int ret, single_cpu; u32 val; /* For single DAI link & old style of DT node */ @@ -351,33 +251,44 @@ static int asoc_simple_card_dai_link_of(struct device_node *node, if (!of_property_read_u32(node, "mclk-fs", &val)) dai_props->mclk_fs = val; - ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai, - &dai_link->cpu_of_node, - &dai_link->cpu_dai_name, - &cpu_args); + ret = asoc_simple_card_parse_cpu(cpu, dai_link, + DAI, CELL, &single_cpu); if (ret < 0) goto dai_link_of_err; - ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai, - &dai_link->codec_of_node, - &dai_link->codec_dai_name, NULL); + ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL); if (ret < 0) goto dai_link_of_err; - ret = asoc_simple_card_sub_parse_of(plat, NULL, - &dai_link->platform_of_node, - NULL, NULL); + ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL); if (ret < 0) goto dai_link_of_err; - if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { - ret = -EINVAL; + ret = snd_soc_of_parse_tdm_slot(cpu, &cpu_dai->tx_slot_mask, + &cpu_dai->rx_slot_mask, + &cpu_dai->slots, + &cpu_dai->slot_width); + if (ret < 0) + goto dai_link_of_err; + + ret = snd_soc_of_parse_tdm_slot(codec, &codec_dai->tx_slot_mask, + &codec_dai->rx_slot_mask, + &codec_dai->slots, + &codec_dai->slot_width); + if (ret < 0) + goto dai_link_of_err; + + ret = asoc_simple_card_parse_clk_cpu(cpu, dai_link, cpu_dai); + if (ret < 0) goto dai_link_of_err; - } - /* Assumes platform == cpu */ - if (!dai_link->platform_of_node) - dai_link->platform_of_node = dai_link->cpu_of_node; + ret = asoc_simple_card_parse_clk_codec(codec, dai_link, codec_dai); + if (ret < 0) + goto dai_link_of_err; + + ret = asoc_simple_card_canonicalize_dailink(dai_link); + if (ret < 0) + goto dai_link_of_err; ret = asoc_simple_card_set_dailink_name(dev, dai_link, "%s-%s", @@ -398,17 +309,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node, dai_link->codec_dai_name, dai_props->codec_dai.sysclk); - /* - * In soc_bind_dai_link() will check cpu name after - * of_node matching if dai_link has cpu_dai_name. - * but, it will never match if name was created by - * fmt_single_name() remove cpu_dai_name if cpu_args - * was 0. See: - * fmt_single_name() - * fmt_multiple_name() - */ - if (!cpu_args) - dai_link->cpu_dai_name = NULL; + asoc_simple_card_canonicalize_cpu(dai_link, single_cpu); dai_link_of_err: of_node_put(cpu); @@ -477,21 +378,6 @@ static int asoc_simple_card_parse_of(struct device_node *node, return 0; } -/* Decrease the reference count of the device nodes */ -static int asoc_simple_card_unref(struct snd_soc_card *card) -{ - struct snd_soc_dai_link *dai_link; - int num_links; - - for (num_links = 0, dai_link = card->dai_link; - num_links < card->num_links; - num_links++, dai_link++) { - of_node_put(dai_link->cpu_of_node); - of_node_put(dai_link->codec_of_node); - } - return 0; -} - static int asoc_simple_card_probe(struct platform_device *pdev) { struct simple_card_data *priv; @@ -577,7 +463,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev) return ret; err: - asoc_simple_card_unref(&priv->snd_card); + asoc_simple_card_clean_reference(&priv->snd_card); return ret; } @@ -589,7 +475,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev) asoc_simple_card_remove_jack(&priv->hp_jack); asoc_simple_card_remove_jack(&priv->mic_jack); - return asoc_simple_card_unref(card); + return asoc_simple_card_clean_reference(card); } static const struct of_device_id asoc_simple_of_match[] = { diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c new file mode 100644 index 0000000..b9973a5 --- /dev/null +++ b/sound/soc/generic/simple-scu-card.c @@ -0,0 +1,345 @@ +/* + * ASoC simple SCU sound card support + * + * Copyright (C) 2015 Renesas Solutions Corp. + * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * based on ${LINUX}/sound/soc/generic/simple-card.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/string.h> +#include <sound/jack.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <sound/simple_card_utils.h> + +struct asoc_simple_card_priv { + struct snd_soc_card snd_card; + struct snd_soc_codec_conf codec_conf; + struct asoc_simple_dai *dai_props; + struct snd_soc_dai_link *dai_link; + u32 convert_rate; + u32 convert_channels; +}; + +#define simple_priv_to_dev(priv) ((priv)->snd_card.dev) +#define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i)) +#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i)) + +#define DAI "sound-dai" +#define CELL "#sound-dai-cells" +#define PREFIX "simple-audio-card," + +static int asoc_simple_card_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); + struct asoc_simple_dai *dai_props = + simple_priv_to_props(priv, rtd->num); + + return clk_prepare_enable(dai_props->clk); +} + +static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); + struct asoc_simple_dai *dai_props = + simple_priv_to_props(priv, rtd->num); + + clk_disable_unprepare(dai_props->clk); +} + +static struct snd_soc_ops asoc_simple_card_ops = { + .startup = asoc_simple_card_startup, + .shutdown = asoc_simple_card_shutdown, +}; + +static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *dai; + struct snd_soc_dai_link *dai_link; + struct asoc_simple_dai *dai_props; + int num = rtd->num; + + dai_link = simple_priv_to_link(priv, num); + dai_props = simple_priv_to_props(priv, num); + dai = dai_link->dynamic ? + rtd->cpu_dai : + rtd->codec_dai; + + return asoc_simple_card_init_dai(dai, dai_props); +} + +static int asoc_simple_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); + struct snd_interval *rate = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + if (priv->convert_rate) + rate->min = + rate->max = priv->convert_rate; + + if (priv->convert_channels) + channels->min = + channels->max = priv->convert_channels; + + return 0; +} + +static int asoc_simple_card_parse_links(struct device_node *np, + struct asoc_simple_card_priv *priv, + unsigned int daifmt, + int idx, bool is_fe) +{ + struct device *dev = simple_priv_to_dev(priv); + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx); + struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx); + int ret; + + if (is_fe) { + int is_single_links = 0; + + /* BE is dummy */ + dai_link->codec_of_node = NULL; + dai_link->codec_dai_name = "snd-soc-dummy-dai"; + dai_link->codec_name = "snd-soc-dummy"; + + /* FE settings */ + dai_link->dynamic = 1; + dai_link->dpcm_merged_format = 1; + + ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL, + &is_single_links); + if (ret) + return ret; + + ret = asoc_simple_card_parse_clk_cpu(np, dai_link, dai_props); + 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; + + asoc_simple_card_canonicalize_cpu(dai_link, is_single_links); + } else { + /* 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_simple_card_be_hw_params_fixup; + + ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL); + if (ret < 0) + return ret; + + ret = asoc_simple_card_parse_clk_codec(np, dai_link, dai_props); + if (ret < 0) + return ret; + + ret = asoc_simple_card_set_dailink_name(dev, dai_link, + "be.%s", + dai_link->codec_dai_name); + if (ret < 0) + return ret; + + snd_soc_of_parse_audio_prefix(&priv->snd_card, + &priv->codec_conf, + dai_link->codec_of_node, + PREFIX "prefix"); + } + + ret = snd_soc_of_parse_tdm_slot(np, + &dai_props->tx_slot_mask, + &dai_props->rx_slot_mask, + &dai_props->slots, + &dai_props->slot_width); + if (ret) + return ret; + + ret = asoc_simple_card_canonicalize_dailink(dai_link); + if (ret < 0) + return ret; + + dai_link->dai_fmt = daifmt; + dai_link->dpcm_playback = 1; + dai_link->dpcm_capture = 1; + dai_link->ops = &asoc_simple_card_ops; + dai_link->init = asoc_simple_card_dai_init; + + dev_dbg(dev, "\t%s / %04x / %d\n", + dai_link->name, + dai_link->dai_fmt, + dai_props->sysclk); + + return 0; +} + +static int asoc_simple_card_dai_link_of(struct device_node *node, + struct asoc_simple_card_priv *priv) +{ + struct device *dev = simple_priv_to_dev(priv); + struct device_node *np; + unsigned int daifmt = 0; + int ret, i; + bool is_fe; + + /* find 1st codec */ + np = of_get_child_by_name(node, PREFIX "codec"); + if (!np) + return -ENODEV; + + ret = asoc_simple_card_parse_daifmt(dev, node, np, + PREFIX, &daifmt); + if (ret < 0) + return ret; + + i = 0; + for_each_child_of_node(node, np) { + is_fe = false; + if (strcmp(np->name, PREFIX "cpu") == 0) + is_fe = true; + + ret = asoc_simple_card_parse_links(np, priv, daifmt, i, is_fe); + if (ret < 0) + return ret; + i++; + } + + return 0; +} + +static int asoc_simple_card_parse_of(struct device_node *node, + struct asoc_simple_card_priv *priv, + struct device *dev) +{ + struct asoc_simple_dai *props; + struct snd_soc_dai_link *links; + int ret; + int num; + + if (!node) + return -EINVAL; + + num = of_get_child_count(node); + props = devm_kzalloc(dev, sizeof(*props) * num, GFP_KERNEL); + links = devm_kzalloc(dev, sizeof(*links) * num, GFP_KERNEL); + if (!props || !links) + return -ENOMEM; + + priv->dai_props = props; + priv->dai_link = links; + + /* Init snd_soc_card */ + priv->snd_card.owner = THIS_MODULE; + priv->snd_card.dev = dev; + priv->snd_card.dai_link = priv->dai_link; + priv->snd_card.num_links = num; + priv->snd_card.codec_conf = &priv->codec_conf; + priv->snd_card.num_configs = 1; + + ret = snd_soc_of_parse_audio_routing(&priv->snd_card, PREFIX "routing"); + if (ret < 0) + return ret; + + /* sampling rate convert */ + of_property_read_u32(node, PREFIX "convert-rate", &priv->convert_rate); + + /* channels transfer */ + of_property_read_u32(node, PREFIX "convert-channels", &priv->convert_channels); + + ret = asoc_simple_card_dai_link_of(node, priv); + if (ret < 0) + return ret; + + ret = asoc_simple_card_parse_card_name(&priv->snd_card, PREFIX); + if (ret < 0) + return ret; + + dev_dbg(dev, "New card: %s\n", + priv->snd_card.name ? priv->snd_card.name : ""); + dev_dbg(dev, "convert_rate %d\n", priv->convert_rate); + dev_dbg(dev, "convert_channels %d\n", priv->convert_channels); + + return 0; +} + +static int asoc_simple_card_probe(struct platform_device *pdev) +{ + struct asoc_simple_card_priv *priv; + struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + int ret; + + /* Allocate the private data */ + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + ret = asoc_simple_card_parse_of(np, priv, dev); + if (ret < 0) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "parse error %d\n", ret); + goto err; + } + + snd_soc_card_set_drvdata(&priv->snd_card, priv); + + ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); + if (ret >= 0) + return ret; +err: + asoc_simple_card_clean_reference(&priv->snd_card); + + return ret; +} + +static int asoc_simple_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_simple_of_match[] = { + { .compatible = "renesas,rsrc-card", }, + { .compatible = "simple-scu-audio-card", }, + {}, +}; +MODULE_DEVICE_TABLE(of, asoc_simple_of_match); + +static struct platform_driver asoc_simple_card = { + .driver = { + .name = "simple-scu-audio-card", + .of_match_table = asoc_simple_of_match, + }, + .probe = asoc_simple_card_probe, + .remove = asoc_simple_card_remove, +}; + +module_platform_driver(asoc_simple_card); + +MODULE_ALIAS("platform:asoc-simple-scu-card"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ASoC Simple SCU Sound Card"); +MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig index 9311f11..6db6405 100644 --- a/sound/soc/sh/Kconfig +++ b/sound/soc/sh/Kconfig @@ -42,12 +42,6 @@ config SND_SOC_RCAR help This option enables R-Car SRU/SCU/SSIU/SSI sound support -config SND_SOC_RSRC_CARD - tristate "Renesas Sampling Rate Convert Sound Card" - select SND_SIMPLE_CARD_UTILS - help - This option enables simple sound if you need sampling rate convert - ## ## Boards ## diff --git a/sound/soc/sh/rcar/Makefile b/sound/soc/sh/rcar/Makefile index a89ddf7..9c3d5ae 100644 --- a/sound/soc/sh/rcar/Makefile +++ b/sound/soc/sh/rcar/Makefile @@ -1,5 +1,2 @@ snd-soc-rcar-objs := core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o - -snd-soc-rsrc-card-objs := rsrc-card.o -obj-$(CONFIG_SND_SOC_RSRC_CARD) += snd-soc-rsrc-card.o diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 3351a70..f181410 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -110,6 +110,7 @@ MODULE_DEVICE_TABLE(of, rsnd_of_match); /* * rsnd_mod functions */ +#ifdef DEBUG void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type) { if (mod->type != type) { @@ -120,6 +121,7 @@ void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type) rsnd_mod_name(mod), rsnd_mod_id(mod)); } } +#endif char *rsnd_mod_name(struct rsnd_mod *mod) { @@ -574,6 +576,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, switch (cmd) { case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: rsnd_dai_stream_init(io, substream); ret = rsnd_dai_call(init, io, priv); @@ -590,6 +593,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, break; case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: ret = rsnd_dai_call(irq, io, priv, 0); ret |= rsnd_dai_call(stop, io, priv); diff --git a/sound/soc/sh/rcar/rsrc-card.c b/sound/soc/sh/rcar/rsrc-card.c deleted file mode 100644 index fa37f84..0000000 --- a/sound/soc/sh/rcar/rsrc-card.c +++ /dev/null @@ -1,486 +0,0 @@ -/* - * Renesas Sampling Rate Convert Sound Card for DPCM - * - * Copyright (C) 2015 Renesas Solutions Corp. - * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> - * - * based on ${LINUX}/sound/soc/generic/simple-card.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> -#include <linux/string.h> -#include <sound/jack.h> -#include <sound/soc.h> -#include <sound/soc-dai.h> -#include <sound/simple_card_utils.h> - -struct rsrc_card_of_data { - const char *prefix; - const struct snd_soc_dapm_route *routes; - int num_routes; -}; - -static const struct snd_soc_dapm_route routes_ssi0_ak4642[] = { - {"ak4642 Playback", NULL, "DAI0 Playback"}, - {"DAI0 Capture", NULL, "ak4642 Capture"}, -}; - -static const struct rsrc_card_of_data routes_of_ssi0_ak4642 = { - .prefix = "ak4642", - .routes = routes_ssi0_ak4642, - .num_routes = ARRAY_SIZE(routes_ssi0_ak4642), -}; - -static const struct of_device_id rsrc_card_of_match[] = { - { .compatible = "renesas,rsrc-card,lager", .data = &routes_of_ssi0_ak4642 }, - { .compatible = "renesas,rsrc-card,koelsch", .data = &routes_of_ssi0_ak4642 }, - { .compatible = "renesas,rsrc-card", }, - {}, -}; -MODULE_DEVICE_TABLE(of, rsrc_card_of_match); - -#define IDX_CPU 0 -#define IDX_CODEC 1 -struct rsrc_card_priv { - struct snd_soc_card snd_card; - struct snd_soc_codec_conf codec_conf; - struct asoc_simple_dai *dai_props; - struct snd_soc_dai_link *dai_link; - u32 convert_rate; - u32 convert_channels; -}; - -#define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev) -#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i)) -#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + (i)) - -static int rsrc_card_startup(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = - rsrc_priv_to_props(priv, rtd->num); - - return clk_prepare_enable(dai_props->clk); -} - -static void rsrc_card_shutdown(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); - struct asoc_simple_dai *dai_props = - rsrc_priv_to_props(priv, rtd->num); - - clk_disable_unprepare(dai_props->clk); -} - -static struct snd_soc_ops rsrc_card_ops = { - .startup = rsrc_card_startup, - .shutdown = rsrc_card_shutdown, -}; - -static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd) -{ - struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); - struct snd_soc_dai *dai; - struct snd_soc_dai_link *dai_link; - struct asoc_simple_dai *dai_props; - int num = rtd->num; - int ret; - - dai_link = rsrc_priv_to_link(priv, num); - dai_props = rsrc_priv_to_props(priv, num); - dai = dai_link->dynamic ? - rtd->cpu_dai : - rtd->codec_dai; - - if (dai_props->sysclk) { - ret = snd_soc_dai_set_sysclk(dai, 0, dai_props->sysclk, 0); - if (ret && ret != -ENOTSUPP) { - dev_err(dai->dev, "set_sysclk error\n"); - goto err; - } - } - - if (dai_props->slots) { - ret = snd_soc_dai_set_tdm_slot(dai, - dai_props->tx_slot_mask, - dai_props->rx_slot_mask, - dai_props->slots, - dai_props->slot_width); - if (ret && ret != -ENOTSUPP) { - dev_err(dai->dev, "set_tdm_slot error\n"); - goto err; - } - } - - ret = 0; - -err: - return ret; -} - -static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, - struct snd_pcm_hw_params *params) -{ - struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); - struct snd_interval *rate = hw_param_interval(params, - SNDRV_PCM_HW_PARAM_RATE); - struct snd_interval *channels = hw_param_interval(params, - SNDRV_PCM_HW_PARAM_CHANNELS); - - if (priv->convert_rate) - rate->min = - rate->max = priv->convert_rate; - - if (priv->convert_channels) - channels->min = - channels->max = priv->convert_channels; - - return 0; -} - -static int rsrc_card_parse_links(struct device_node *np, - struct rsrc_card_priv *priv, - int idx, bool is_fe) -{ - struct device *dev = rsrc_priv_to_dev(priv); - struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx); - struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx); - struct of_phandle_args args; - int ret; - - /* - * Get node via "sound-dai = <&phandle port>" - * it will be used as xxx_of_node on soc_bind_dai_link() - */ - ret = of_parse_phandle_with_args(np, "sound-dai", - "#sound-dai-cells", 0, &args); - if (ret) - return ret; - - /* Parse TDM slot */ - ret = snd_soc_of_parse_tdm_slot(np, - &dai_props->tx_slot_mask, - &dai_props->rx_slot_mask, - &dai_props->slots, - &dai_props->slot_width); - if (ret) - return ret; - - if (is_fe) { - /* BE is dummy */ - dai_link->codec_of_node = NULL; - dai_link->codec_dai_name = "snd-soc-dummy-dai"; - dai_link->codec_name = "snd-soc-dummy"; - - /* FE settings */ - dai_link->dynamic = 1; - dai_link->dpcm_merged_format = 1; - dai_link->cpu_of_node = args.np; - ret = snd_soc_of_get_dai_name(np, &dai_link->cpu_dai_name); - 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; - - /* - * In soc_bind_dai_link() will check cpu name after - * of_node matching if dai_link has cpu_dai_name. - * but, it will never match if name was created by - * fmt_single_name() remove cpu_dai_name if cpu_args - * was 0. See: - * fmt_single_name() - * fmt_multiple_name() - */ - if (!args.args_count) - dai_link->cpu_dai_name = NULL; - } else { - const struct rsrc_card_of_data *of_data; - - of_data = of_device_get_match_data(dev); - - /* 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 = rsrc_card_be_hw_params_fixup; - dai_link->codec_of_node = args.np; - ret = snd_soc_of_get_dai_name(np, &dai_link->codec_dai_name); - if (ret < 0) - return ret; - - ret = asoc_simple_card_set_dailink_name(dev, dai_link, - "be.%s", - dai_link->codec_dai_name); - if (ret < 0) - return ret; - - /* additional name prefix */ - if (of_data) { - priv->codec_conf.of_node = dai_link->codec_of_node; - priv->codec_conf.name_prefix = of_data->prefix; - } else { - snd_soc_of_parse_audio_prefix(&priv->snd_card, - &priv->codec_conf, - dai_link->codec_of_node, - "audio-prefix"); - } - } - - /* Simple Card assumes platform == cpu */ - dai_link->platform_of_node = dai_link->cpu_of_node; - dai_link->dpcm_playback = 1; - dai_link->dpcm_capture = 1; - dai_link->ops = &rsrc_card_ops; - dai_link->init = rsrc_card_dai_init; - - return 0; -} - -static int rsrc_card_parse_clk(struct device_node *np, - struct rsrc_card_priv *priv, - int idx, bool is_fe) -{ - struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx); - struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx); - struct clk *clk; - struct device_node *of_np = is_fe ? dai_link->cpu_of_node : - dai_link->codec_of_node; - u32 val; - - /* - * Parse dai->sysclk come from "clocks = <&xxx>" - * (if system has common clock) - * or "system-clock-frequency = <xxx>" - * or device's module clock. - */ - if (of_property_read_bool(np, "clocks")) { - clk = of_clk_get(np, 0); - if (IS_ERR(clk)) - return PTR_ERR(clk); - - dai_props->sysclk = clk_get_rate(clk); - dai_props->clk = clk; - } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) { - dai_props->sysclk = val; - } else { - clk = of_clk_get(of_np, 0); - if (!IS_ERR(clk)) - dai_props->sysclk = clk_get_rate(clk); - } - - return 0; -} - -static int rsrc_card_dai_sub_link_of(struct device_node *node, - struct device_node *np, - struct rsrc_card_priv *priv, - int idx, bool is_fe) -{ - struct device *dev = rsrc_priv_to_dev(priv); - struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx); - struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx); - int ret; - - ret = rsrc_card_parse_links(np, priv, idx, is_fe); - if (ret < 0) - return ret; - - ret = rsrc_card_parse_clk(np, priv, idx, is_fe); - if (ret < 0) - return ret; - - dev_dbg(dev, "\t%s / %04x / %d\n", - dai_link->name, - dai_link->dai_fmt, - dai_props->sysclk); - - return ret; -} - -static int rsrc_card_dai_link_of(struct device_node *node, - struct rsrc_card_priv *priv) -{ - struct device *dev = rsrc_priv_to_dev(priv); - struct snd_soc_dai_link *dai_link; - struct device_node *np; - unsigned int daifmt = 0; - int ret, i; - bool is_fe; - - /* find 1st codec */ - i = 0; - for_each_child_of_node(node, np) { - dai_link = rsrc_priv_to_link(priv, i); - - if (strcmp(np->name, "codec") == 0) { - ret = asoc_simple_card_parse_daifmt(dev, node, np, - NULL, &daifmt); - if (ret < 0) - return ret; - break; - } - i++; - } - - i = 0; - for_each_child_of_node(node, np) { - dai_link = rsrc_priv_to_link(priv, i); - dai_link->dai_fmt = daifmt; - - is_fe = false; - if (strcmp(np->name, "cpu") == 0) - is_fe = true; - - ret = rsrc_card_dai_sub_link_of(node, np, priv, i, is_fe); - if (ret < 0) - return ret; - i++; - } - - return 0; -} - -static int rsrc_card_parse_of(struct device_node *node, - struct rsrc_card_priv *priv, - struct device *dev) -{ - const struct rsrc_card_of_data *of_data = of_device_get_match_data(dev); - struct asoc_simple_dai *props; - struct snd_soc_dai_link *links; - int ret; - int num; - - if (!node) - return -EINVAL; - - num = of_get_child_count(node); - props = devm_kzalloc(dev, sizeof(*props) * num, GFP_KERNEL); - links = devm_kzalloc(dev, sizeof(*links) * num, GFP_KERNEL); - if (!props || !links) - return -ENOMEM; - - priv->dai_props = props; - priv->dai_link = links; - - /* Init snd_soc_card */ - priv->snd_card.owner = THIS_MODULE; - priv->snd_card.dev = dev; - priv->snd_card.dai_link = priv->dai_link; - priv->snd_card.num_links = num; - priv->snd_card.codec_conf = &priv->codec_conf; - priv->snd_card.num_configs = 1; - - if (of_data) { - priv->snd_card.of_dapm_routes = of_data->routes; - priv->snd_card.num_of_dapm_routes = of_data->num_routes; - } else { - snd_soc_of_parse_audio_routing(&priv->snd_card, - "audio-routing"); - } - - /* sampling rate convert */ - of_property_read_u32(node, "convert-rate", &priv->convert_rate); - - /* channels transfer */ - of_property_read_u32(node, "convert-channels", &priv->convert_channels); - - dev_dbg(dev, "New rsrc-audio-card: %s\n", - priv->snd_card.name ? priv->snd_card.name : ""); - dev_dbg(dev, "SRC : convert_rate %d\n", priv->convert_rate); - dev_dbg(dev, "CTU : convert_channels %d\n", priv->convert_channels); - - ret = rsrc_card_dai_link_of(node, priv); - if (ret < 0) - return ret; - - ret = asoc_simple_card_parse_card_name(&priv->snd_card, "card-"); - if (ret < 0) - return ret; - - return 0; -} - -/* Decrease the reference count of the device nodes */ -static int rsrc_card_unref(struct snd_soc_card *card) -{ - struct snd_soc_dai_link *dai_link; - int num_links; - - for (num_links = 0, dai_link = card->dai_link; - num_links < card->num_links; - num_links++, dai_link++) { - of_node_put(dai_link->cpu_of_node); - of_node_put(dai_link->codec_of_node); - } - return 0; -} - -static int rsrc_card_probe(struct platform_device *pdev) -{ - struct rsrc_card_priv *priv; - struct device_node *np = pdev->dev.of_node; - struct device *dev = &pdev->dev; - int ret; - - /* Allocate the private data */ - priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - ret = rsrc_card_parse_of(np, priv, dev); - if (ret < 0) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "parse error %d\n", ret); - goto err; - } - - snd_soc_card_set_drvdata(&priv->snd_card, priv); - - ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card); - if (ret >= 0) - return ret; -err: - rsrc_card_unref(&priv->snd_card); - - return ret; -} - -static int rsrc_card_remove(struct platform_device *pdev) -{ - struct snd_soc_card *card = platform_get_drvdata(pdev); - - return rsrc_card_unref(card); -} - -static struct platform_driver rsrc_card = { - .driver = { - .name = "renesas-src-audio-card", - .of_match_table = rsrc_card_of_match, - }, - .probe = rsrc_card_probe, - .remove = rsrc_card_remove, -}; - -module_platform_driver(rsrc_card); - -MODULE_ALIAS("platform:renesas-src-audio-card"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Renesas Sampling Rate Convert Sound Card"); -MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |