diff options
Diffstat (limited to 'sound/soc/generic/simple-card-utils.c')
-rw-r--r-- | sound/soc/generic/simple-card-utils.c | 360 |
1 files changed, 266 insertions, 94 deletions
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 850e968677f1..be69bbc47f81 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -9,11 +9,38 @@ #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/of_graph.h> #include <sound/jack.h> +#include <sound/pcm_params.h> #include <sound/simple_card_utils.h> +static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data, + struct snd_pcm_hw_params *params) +{ + int i; + struct snd_mask *mask = hw_param_mask(params, + SNDRV_PCM_HW_PARAM_FORMAT); + struct { + char *fmt; + u32 val; + } of_sample_fmt_table[] = { + { "s8", SNDRV_PCM_FORMAT_S8}, + { "s16_le", SNDRV_PCM_FORMAT_S16_LE}, + { "s24_le", SNDRV_PCM_FORMAT_S24_LE}, + { "s24_3le", SNDRV_PCM_FORMAT_S24_3LE}, + { "s32_le", SNDRV_PCM_FORMAT_S32_LE}, + }; + + for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) { + if (!strcmp(data->convert_sample_format, + of_sample_fmt_table[i].fmt)) { + snd_mask_none(mask); + snd_mask_set(mask, of_sample_fmt_table[i].val); + break; + } + } +} + void asoc_simple_convert_fixup(struct asoc_simple_data *data, struct snd_pcm_hw_params *params) { @@ -29,6 +56,9 @@ void asoc_simple_convert_fixup(struct asoc_simple_data *data, if (data->convert_channels) channels->min = channels->max = data->convert_channels; + + if (data->convert_sample_format) + asoc_simple_fixup_sample_fmt(data, params); } EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup); @@ -48,9 +78,28 @@ void asoc_simple_parse_convert(struct device_node *np, /* channels transfer */ snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels"); of_property_read_u32(np, prop, &data->convert_channels); + + /* convert sample format */ + snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format"); + of_property_read_string(np, prop, &data->convert_sample_format); } EXPORT_SYMBOL_GPL(asoc_simple_parse_convert); +/** + * asoc_simple_is_convert_required() - Query if HW param conversion was requested + * @data: Link data. + * + * Returns true if any HW param conversion was requested for this DAI link with + * any "convert-xxx" properties. + */ +bool asoc_simple_is_convert_required(const struct asoc_simple_data *data) +{ + return data->convert_rate || + data->convert_channels || + data->convert_sample_format; +} +EXPORT_SYMBOL_GPL(asoc_simple_is_convert_required); + int asoc_simple_parse_daifmt(struct device *dev, struct device_node *node, struct device_node *codec, @@ -87,6 +136,51 @@ int asoc_simple_parse_daifmt(struct device *dev, } EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt); +int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np, + struct asoc_simple_dai *dai) +{ + u32 *array_values, *p; + int n, i, ret; + + if (!of_property_read_bool(np, "dai-tdm-slot-width-map")) + return 0; + + n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32)); + if (n % 3) { + dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n"); + return -EINVAL; + } + + dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL); + if (!dai->tdm_width_map) + return -ENOMEM; + + array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL); + if (!array_values) + return -ENOMEM; + + ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n); + if (ret < 0) { + dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret); + goto out; + } + + p = array_values; + for (i = 0; i < n / 3; ++i) { + dai->tdm_width_map[i].sample_bits = *p++; + dai->tdm_width_map[i].slot_width = *p++; + dai->tdm_width_map[i].slot_count = *p++; + } + + dai->n_tdm_widths = i; + ret = 0; +out: + kfree(array_values); + + return ret; +} +EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map); + int asoc_simple_set_dailink_name(struct device *dev, struct snd_soc_dai_link *dai_link, const char *fmt, ...) @@ -165,12 +259,15 @@ int asoc_simple_parse_clk(struct device *dev, * or device's module clock. */ clk = devm_get_clk_from_child(dev, node, NULL); + simple_dai->clk_fixed = of_property_read_bool( + node, "system-clock-fixed"); 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; + simple_dai->clk_fixed = true; } else { clk = devm_get_clk_from_child(dev, dlc->of_node, NULL); if (!IS_ERR(clk)) @@ -184,12 +281,29 @@ int asoc_simple_parse_clk(struct device *dev, } EXPORT_SYMBOL_GPL(asoc_simple_parse_clk); +static int asoc_simple_check_fixed_sysclk(struct device *dev, + struct asoc_simple_dai *dai, + unsigned int *fixed_sysclk) +{ + if (dai->clk_fixed) { + if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) { + dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n", + *fixed_sysclk, dai->sysclk); + return -EINVAL; + } + *fixed_sysclk = dai->sysclk; + } + + return 0; +} + int asoc_simple_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); struct asoc_simple_dai *dai; + unsigned int fixed_sysclk = 0; int i1, i2, i; int ret; @@ -197,12 +311,32 @@ int asoc_simple_startup(struct snd_pcm_substream *substream) ret = asoc_simple_clk_enable(dai); if (ret) goto cpu_err; + ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk); + if (ret) + goto cpu_err; } for_each_prop_dai_codec(props, i2, dai) { ret = asoc_simple_clk_enable(dai); if (ret) goto codec_err; + ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk); + if (ret) + goto codec_err; + } + + if (fixed_sysclk && props->mclk_fs) { + unsigned int fixed_rate = fixed_sysclk / props->mclk_fs; + + if (fixed_sysclk % props->mclk_fs) { + dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n", + fixed_sysclk, props->mclk_fs); + return -EINVAL; + } + ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, + fixed_rate, fixed_rate); + if (ret) + goto codec_err; } return 0; @@ -226,31 +360,44 @@ EXPORT_SYMBOL_GPL(asoc_simple_startup); void asoc_simple_shutdown(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); - struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); struct asoc_simple_dai *dai; int i; - if (props->mclk_fs) { - snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN); - snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); - } + for_each_prop_dai_cpu(props, i, dai) { + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i); + + if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai)) + snd_soc_dai_set_sysclk(cpu_dai, + 0, 0, SND_SOC_CLOCK_OUT); - for_each_prop_dai_cpu(props, i, dai) asoc_simple_clk_disable(dai); - for_each_prop_dai_codec(props, i, dai) + } + for_each_prop_dai_codec(props, i, dai) { + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i); + + if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai)) + snd_soc_dai_set_sysclk(codec_dai, + 0, 0, SND_SOC_CLOCK_IN); + asoc_simple_clk_disable(dai); + } } EXPORT_SYMBOL_GPL(asoc_simple_shutdown); -static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai, +static int asoc_simple_set_clk_rate(struct device *dev, + struct asoc_simple_dai *simple_dai, unsigned long rate) { if (!simple_dai) return 0; + if (simple_dai->clk_fixed && rate != simple_dai->sysclk) { + dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate); + return -EINVAL; + } + if (!simple_dai->clk) return 0; @@ -260,6 +407,44 @@ static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai, return clk_set_rate(simple_dai->clk, rate); } +static int asoc_simple_set_tdm(struct snd_soc_dai *dai, + struct asoc_simple_dai *simple_dai, + struct snd_pcm_hw_params *params) +{ + int sample_bits = params_width(params); + int slot_width, slot_count; + int i, ret; + + if (!simple_dai || !simple_dai->tdm_width_map) + return 0; + + slot_width = simple_dai->slot_width; + slot_count = simple_dai->slots; + + if (slot_width == 0) + slot_width = sample_bits; + + for (i = 0; i < simple_dai->n_tdm_widths; ++i) { + if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) { + slot_width = simple_dai->tdm_width_map[i].slot_width; + slot_count = simple_dai->tdm_width_map[i].slot_count; + break; + } + } + + ret = snd_soc_dai_set_tdm_slot(dai, + simple_dai->tx_slot_mask, + simple_dai->rx_slot_mask, + slot_count, + slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret); + return ret; + } + + return 0; +} + int asoc_simple_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -275,29 +460,59 @@ int asoc_simple_hw_params(struct snd_pcm_substream *substream, mclk_fs = props->mclk_fs; if (mclk_fs) { + struct snd_soc_component *component; mclk = params_rate(params) * mclk_fs; for_each_prop_dai_codec(props, i, pdai) { - ret = asoc_simple_set_clk_rate(pdai, mclk); + ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk); if (ret < 0) return ret; } + for_each_prop_dai_cpu(props, i, pdai) { - ret = asoc_simple_set_clk_rate(pdai, mclk); + ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk); if (ret < 0) return ret; } + + /* Ensure sysclk is set on all components in case any + * (such as platform components) are missed by calls to + * snd_soc_dai_set_sysclk. + */ + for_each_rtd_components(rtd, i, component) { + ret = snd_soc_component_set_sysclk(component, 0, 0, + mclk, SND_SOC_CLOCK_IN); + if (ret && ret != -ENOTSUPP) + return ret; + } + for_each_rtd_codec_dais(rtd, i, sdai) { ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN); if (ret && ret != -ENOTSUPP) return ret; } + for_each_rtd_cpu_dais(rtd, i, sdai) { ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT); if (ret && ret != -ENOTSUPP) return ret; } } + + for_each_prop_dai_codec(props, i, pdai) { + sdai = asoc_rtd_to_codec(rtd, i); + ret = asoc_simple_set_tdm(sdai, pdai, params); + if (ret < 0) + return ret; + } + + for_each_prop_dai_cpu(props, i, pdai) { + sdai = asoc_rtd_to_cpu(rtd, i); + ret = asoc_simple_set_tdm(sdai, pdai, params); + if (ret < 0) + return ret; + } + return 0; } EXPORT_SYMBOL_GPL(asoc_simple_hw_params); @@ -346,7 +561,12 @@ static int asoc_simple_init_dai(struct snd_soc_dai *dai, return 0; } -static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd, +static inline int asoc_simple_component_is_codec(struct snd_soc_component *component) +{ + return component->driver->endianness; +} + +static int asoc_simple_init_for_codec2codec(struct snd_soc_pcm_runtime *rtd, struct simple_dai_props *dai_props) { struct snd_soc_dai_link *dai_link = rtd->dai_link; @@ -355,9 +575,17 @@ static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hardware hw; int i, ret, stream; + /* Do nothing if it already has Codec2Codec settings */ + if (dai_link->params) + return 0; + + /* Do nothing if it was DPCM :: BE */ + if (dai_link->no_pcm) + return 0; + /* Only Codecs */ for_each_rtd_components(rtd, i, component) { - if (!snd_soc_component_is_codec(component)) + if (!asoc_simple_component_is_codec(component)) return 0; } @@ -408,7 +636,7 @@ int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd) return ret; } - ret = asoc_simple_init_dai_link_params(rtd, props); + ret = asoc_simple_init_for_codec2codec(rtd, props); if (ret < 0) return ret; @@ -442,7 +670,7 @@ void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus, } EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu); -int asoc_simple_clean_reference(struct snd_soc_card *card) +void asoc_simple_clean_reference(struct snd_soc_card *card) { struct snd_soc_dai_link *dai_link; struct snd_soc_dai_link_component *cpu; @@ -455,7 +683,6 @@ int asoc_simple_clean_reference(struct snd_soc_card *card) for_each_link_codecs(dai_link, j, codec) of_node_put(codec->of_node); } - return 0; } EXPORT_SYMBOL_GPL(asoc_simple_clean_reference); @@ -499,57 +726,14 @@ EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets); int asoc_simple_parse_pin_switches(struct snd_soc_card *card, char *prefix) { - const unsigned int nb_controls_max = 16; - const char **strings, *control_name; - struct snd_kcontrol_new *controls; - struct device *dev = card->dev; - unsigned int i, nb_controls; char prop[128]; - int ret; if (!prefix) prefix = ""; snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches"); - if (!of_property_read_bool(dev->of_node, prop)) - return 0; - - strings = devm_kcalloc(dev, nb_controls_max, - sizeof(*strings), GFP_KERNEL); - if (!strings) - return -ENOMEM; - - ret = of_property_read_string_array(dev->of_node, prop, - strings, nb_controls_max); - if (ret < 0) - return ret; - - nb_controls = (unsigned int)ret; - - controls = devm_kcalloc(dev, nb_controls, - sizeof(*controls), GFP_KERNEL); - if (!controls) - return -ENOMEM; - - for (i = 0; i < nb_controls; i++) { - control_name = devm_kasprintf(dev, GFP_KERNEL, - "%s Switch", strings[i]); - if (!control_name) - return -ENOMEM; - - controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; - controls[i].name = control_name; - controls[i].info = snd_soc_dapm_info_pin_switch; - controls[i].get = snd_soc_dapm_get_pin_switch; - controls[i].put = snd_soc_dapm_put_pin_switch; - controls[i].private_value = (unsigned long)strings[i]; - } - - card->controls = controls; - card->num_controls = nb_controls; - - return 0; + return snd_soc_of_parse_pin_switches(card, prop); } EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches); @@ -559,12 +743,12 @@ int asoc_simple_init_jack(struct snd_soc_card *card, char *pin) { struct device *dev = card->dev; - enum of_gpio_flags flags; + struct gpio_desc *desc; char prop[128]; char *pin_name; char *gpio_name; int mask; - int det; + int error; if (!prefix) prefix = ""; @@ -572,37 +756,39 @@ int asoc_simple_init_jack(struct snd_soc_card *card, sjack->gpio.gpio = -ENOENT; if (is_hp) { - snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix); + snprintf(prop, sizeof(prop), "%shp-det", prefix); pin_name = pin ? pin : "Headphones"; gpio_name = "Headphone detection"; mask = SND_JACK_HEADPHONE; } else { - snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix); + snprintf(prop, sizeof(prop), "%smic-det", prefix); pin_name = pin ? pin : "Mic Jack"; gpio_name = "Mic detection"; mask = SND_JACK_MICROPHONE; } - det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags); - if (det == -EPROBE_DEFER) - return -EPROBE_DEFER; + desc = gpiod_get_optional(dev, prop, GPIOD_IN); + error = PTR_ERR_OR_ZERO(desc); + if (error) + return error; + + if (desc) { + error = gpiod_set_consumer_name(desc, gpio_name); + if (error) + return error; - if (gpio_is_valid(det)) { sjack->pin.pin = pin_name; sjack->pin.mask = mask; sjack->gpio.name = gpio_name; sjack->gpio.report = mask; - sjack->gpio.gpio = det; - sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW); + sjack->gpio.desc = desc; sjack->gpio.debounce_time = 150; - snd_soc_card_jack_new(card, pin_name, mask, - &sjack->jack, - &sjack->pin, 1); + snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack, + &sjack->pin, 1); - snd_soc_jack_add_gpios(&sjack->jack, 1, - &sjack->gpio); + snd_soc_jack_add_gpios(&sjack->jack, 1, &sjack->gpio); } return 0; @@ -619,8 +805,7 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, struct asoc_simple_dai *dais; struct snd_soc_dai_link_component *dlcs; struct snd_soc_codec_conf *cconf = NULL; - struct snd_soc_pcm_stream *c2c_conf = NULL; - int i, dai_num = 0, dlc_num = 0, cnf_num = 0, c2c_num = 0; + int i, dai_num = 0, dlc_num = 0, cnf_num = 0; dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL); dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL); @@ -639,8 +824,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, if (!li->num[i].cpus) cnf_num += li->num[i].codecs; - - c2c_num += li->num[i].c2c; } dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL); @@ -654,12 +837,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, return -ENOMEM; } - if (c2c_num) { - c2c_conf = devm_kcalloc(dev, c2c_num, sizeof(*c2c_conf), GFP_KERNEL); - if (!c2c_conf) - return -ENOMEM; - } - dev_dbg(dev, "link %d, dais %d, ccnf %d\n", li->link, dai_num, cnf_num); @@ -673,7 +850,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, priv->dais = dais; priv->dlcs = dlcs; priv->codec_conf = cconf; - priv->c2c_conf = c2c_conf; card->dai_link = priv->dai_link; card->num_links = li->link; @@ -691,12 +867,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dlcs += li->num[i].cpus; dais += li->num[i].cpus; - - if (li->num[i].c2c) { - /* Codec2Codec */ - dai_props[i].c2c_conf = c2c_conf; - c2c_conf += li->num[i].c2c; - } } else { /* DPCM Be's CPU = dummy */ dai_props[i].cpus = @@ -754,7 +924,9 @@ int asoc_simple_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); - return asoc_simple_clean_reference(card); + asoc_simple_clean_reference(card); + + return 0; } EXPORT_SYMBOL_GPL(asoc_simple_remove); |