Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 839 insertions, 0 deletions

diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
new file mode 100644
index 000000000..49752af0e
--- /dev/null
+++ b/sound/soc/soc-dai.c
@@ -0,0 +1,839 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// soc-dai.c
+//
+// Copyright (C) 2019 Renesas Electronics Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-link.h>
+
+#define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
+static inline int _soc_dai_ret(struct snd_soc_dai *dai,
+			       const char *func, int ret)
+{
+	/* Positive, Zero values are not errors */
+	if (ret >= 0)
+		return ret;
+
+	/* Negative values might be errors */
+	switch (ret) {
+	case -EPROBE_DEFER:
+	case -ENOTSUPP:
+		break;
+	default:
+		dev_err(dai->dev,
+			"ASoC: error at %s on %s: %d\n",
+			func, dai->name, ret);
+	}
+
+	return ret;
+}
+
+/*
+ * We might want to check substream by using list.
+ * In such case, we can update these macros.
+ */
+#define soc_dai_mark_push(dai, substream, tgt)	((dai)->mark_##tgt = substream)
+#define soc_dai_mark_pop(dai, substream, tgt)	((dai)->mark_##tgt = NULL)
+#define soc_dai_mark_match(dai, substream, tgt)	((dai)->mark_##tgt == substream)
+
+/**
+ * snd_soc_dai_set_sysclk - configure DAI system or master clock.
+ * @dai: DAI
+ * @clk_id: DAI specific clock ID
+ * @freq: new clock frequency in Hz
+ * @dir: new clock direction - input/output.
+ *
+ * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
+ */
+int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+			   unsigned int freq, int dir)
+{
+	int ret;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_sysclk)
+		ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
+	else
+		ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
+						   freq, dir);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
+
+/**
+ * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
+ * @dai: DAI
+ * @div_id: DAI specific clock divider ID
+ * @div: new clock divisor.
+ *
+ * Configures the clock dividers. This is used to derive the best DAI bit and
+ * frame clocks from the system or master clock. It's best to set the DAI bit
+ * and frame clocks as low as possible to save system power.
+ */
+int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
+			   int div_id, int div)
+{
+	int ret = -EINVAL;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_clkdiv)
+		ret = dai->driver->ops->set_clkdiv(dai, div_id, div);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
+
+/**
+ * snd_soc_dai_set_pll - configure DAI PLL.
+ * @dai: DAI
+ * @pll_id: DAI specific PLL ID
+ * @source: DAI specific source for the PLL
+ * @freq_in: PLL input clock frequency in Hz
+ * @freq_out: requested PLL output clock frequency in Hz
+ *
+ * Configures and enables PLL to generate output clock based on input clock.
+ */
+int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
+			unsigned int freq_in, unsigned int freq_out)
+{
+	int ret;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_pll)
+		ret = dai->driver->ops->set_pll(dai, pll_id, source,
+						freq_in, freq_out);
+	else
+		ret = snd_soc_component_set_pll(dai->component, pll_id, source,
+						freq_in, freq_out);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
+
+/**
+ * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
+ * @dai: DAI
+ * @ratio: Ratio of BCLK to Sample rate.
+ *
+ * Configures the DAI for a preset BCLK to sample rate ratio.
+ */
+int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
+{
+	int ret = -ENOTSUPP;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_bclk_ratio)
+		ret = dai->driver->ops->set_bclk_ratio(dai, ratio);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
+
+int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *dai;
+	int i, max = 0;
+
+	/*
+	 * return max num if *ALL* DAIs have .auto_selectable_formats
+	 */
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->ops &&
+		    dai->driver->ops->num_auto_selectable_formats)
+			max = max(max, dai->driver->ops->num_auto_selectable_formats);
+		else
+			return 0;
+	}
+
+	return max;
+}
+
+/**
+ * snd_soc_dai_get_fmt - get supported audio format.
+ * @dai: DAI
+ * @priority: priority level of supported audio format.
+ *
+ * This should return only formats implemented with high
+ * quality by the DAI so that the core can configure a
+ * format which will work well with other devices.
+ * For example devices which don't support both edges of the
+ * LRCLK signal in I2S style formats should only list DSP
+ * modes.  This will mean that sometimes fewer formats
+ * are reported here than are supported by set_fmt().
+ */
+u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority)
+{
+	const struct snd_soc_dai_ops *ops = dai->driver->ops;
+	u64 fmt = 0;
+	int i, max = 0, until = priority;
+
+	/*
+	 * Collect auto_selectable_formats until priority
+	 *
+	 * ex)
+	 *	auto_selectable_formats[] = { A, B, C };
+	 *	(A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx)
+	 *
+	 * priority = 1 :	A
+	 * priority = 2 :	A | B
+	 * priority = 3 :	A | B | C
+	 * priority = 4 :	A | B | C
+	 * ...
+	 */
+	if (ops)
+		max = ops->num_auto_selectable_formats;
+
+	if (max < until)
+		until = max;
+
+	for (i = 0; i < until; i++)
+		fmt |= ops->auto_selectable_formats[i];
+
+	return fmt;
+}
+
+/**
+ * snd_soc_dai_set_fmt - configure DAI hardware audio format.
+ * @dai: DAI
+ * @fmt: SND_SOC_DAIFMT_* format value.
+ *
+ * Configures the DAI hardware format and clocking.
+ */
+int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	int ret = -ENOTSUPP;
+
+	if (dai->driver->ops && dai->driver->ops->set_fmt)
+		ret = dai->driver->ops->set_fmt(dai, fmt);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
+
+/**
+ * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask.
+ * @slots: Number of slots in use.
+ * @tx_mask: bitmask representing active TX slots.
+ * @rx_mask: bitmask representing active RX slots.
+ *
+ * Generates the TDM tx and rx slot default masks for DAI.
+ */
+static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
+				       unsigned int *tx_mask,
+				       unsigned int *rx_mask)
+{
+	if (*tx_mask || *rx_mask)
+		return 0;
+
+	if (!slots)
+		return -EINVAL;
+
+	*tx_mask = (1 << slots) - 1;
+	*rx_mask = (1 << slots) - 1;
+
+	return 0;
+}
+
+/**
+ * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
+ * @dai: The DAI to configure
+ * @tx_mask: bitmask representing active TX slots.
+ * @rx_mask: bitmask representing active RX slots.
+ * @slots: Number of slots in use.
+ * @slot_width: Width in bits for each slot.
+ *
+ * This function configures the specified DAI for TDM operation. @slot contains
+ * the total number of slots of the TDM stream and @slot_with the width of each
+ * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
+ * active slots of the TDM stream for the specified DAI, i.e. which slots the
+ * DAI should write to or read from. If a bit is set the corresponding slot is
+ * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
+ * the first slot, bit 1 to the second slot and so on. The first active slot
+ * maps to the first channel of the DAI, the second active slot to the second
+ * channel and so on.
+ *
+ * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
+ * @rx_mask and @slot_width will be ignored.
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ */
+int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
+			     unsigned int tx_mask, unsigned int rx_mask,
+			     int slots, int slot_width)
+{
+	int ret = -ENOTSUPP;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->xlate_tdm_slot_mask)
+		dai->driver->ops->xlate_tdm_slot_mask(slots,
+						      &tx_mask, &rx_mask);
+	else
+		snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
+
+	dai->tx_mask = tx_mask;
+	dai->rx_mask = rx_mask;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_tdm_slot)
+		ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
+						      slots, slot_width);
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
+
+/**
+ * snd_soc_dai_set_channel_map - configure DAI audio channel map
+ * @dai: DAI
+ * @tx_num: how many TX channels
+ * @tx_slot: pointer to an array which imply the TX slot number channel
+ *           0~num-1 uses
+ * @rx_num: how many RX channels
+ * @rx_slot: pointer to an array which imply the RX slot number channel
+ *           0~num-1 uses
+ *
+ * configure the relationship between channel number and TDM slot number.
+ */
+int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
+				unsigned int tx_num, unsigned int *tx_slot,
+				unsigned int rx_num, unsigned int *rx_slot)
+{
+	int ret = -ENOTSUPP;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_channel_map)
+		ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
+							rx_num, rx_slot);
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
+
+/**
+ * snd_soc_dai_get_channel_map - Get DAI audio channel map
+ * @dai: DAI
+ * @tx_num: how many TX channels
+ * @tx_slot: pointer to an array which imply the TX slot number channel
+ *           0~num-1 uses
+ * @rx_num: how many RX channels
+ * @rx_slot: pointer to an array which imply the RX slot number channel
+ *           0~num-1 uses
+ */
+int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
+				unsigned int *tx_num, unsigned int *tx_slot,
+				unsigned int *rx_num, unsigned int *rx_slot)
+{
+	int ret = -ENOTSUPP;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->get_channel_map)
+		ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
+							rx_num, rx_slot);
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
+
+/**
+ * snd_soc_dai_set_tristate - configure DAI system or master clock.
+ * @dai: DAI
+ * @tristate: tristate enable
+ *
+ * Tristates the DAI so that others can use it.
+ */
+int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
+{
+	int ret = -EINVAL;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->set_tristate)
+		ret = dai->driver->ops->set_tristate(dai, tristate);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
+
+/**
+ * snd_soc_dai_digital_mute - configure DAI system or master clock.
+ * @dai: DAI
+ * @mute: mute enable
+ * @direction: stream to mute
+ *
+ * Mutes the DAI DAC.
+ */
+int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
+			     int direction)
+{
+	int ret = -ENOTSUPP;
+
+	/*
+	 * ignore if direction was CAPTURE
+	 * and it had .no_capture_mute flag
+	 */
+	if (dai->driver->ops &&
+	    dai->driver->ops->mute_stream &&
+	    (direction == SNDRV_PCM_STREAM_PLAYBACK ||
+	     !dai->driver->ops->no_capture_mute))
+		ret = dai->driver->ops->mute_stream(dai, mute, direction);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
+
+int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
+			  struct snd_pcm_substream *substream,
+			  struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	int ret = 0;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->hw_params) {
+		/* perform any topology hw_params fixups before DAI  */
+		ret = snd_soc_link_be_hw_params_fixup(rtd, params);
+		if (ret < 0)
+			goto end;
+
+		ret = dai->driver->ops->hw_params(substream, params, dai);
+	}
+
+	/* mark substream if succeeded */
+	if (ret == 0)
+		soc_dai_mark_push(dai, substream, hw_params);
+end:
+	return soc_dai_ret(dai, ret);
+}
+
+void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
+			 struct snd_pcm_substream *substream,
+			 int rollback)
+{
+	if (rollback && !soc_dai_mark_match(dai, substream, hw_params))
+		return;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->hw_free)
+		dai->driver->ops->hw_free(substream, dai);
+
+	/* remove marked substream */
+	soc_dai_mark_pop(dai, substream, hw_params);
+}
+
+int snd_soc_dai_startup(struct snd_soc_dai *dai,
+			struct snd_pcm_substream *substream)
+{
+	int ret = 0;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->startup)
+		ret = dai->driver->ops->startup(substream, dai);
+
+	/* mark substream if succeeded */
+	if (ret == 0)
+		soc_dai_mark_push(dai, substream, startup);
+
+	return soc_dai_ret(dai, ret);
+}
+
+void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
+			  struct snd_pcm_substream *substream,
+			  int rollback)
+{
+	if (rollback && !soc_dai_mark_match(dai, substream, startup))
+		return;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->shutdown)
+		dai->driver->ops->shutdown(substream, dai);
+
+	/* remove marked substream */
+	soc_dai_mark_pop(dai, substream, startup);
+}
+
+int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
+			     struct snd_soc_pcm_runtime *rtd, int num)
+{
+	int ret = -ENOTSUPP;
+	if (dai->driver->compress_new)
+		ret = dai->driver->compress_new(rtd, num);
+	return soc_dai_ret(dai, ret);
+}
+
+/*
+ * snd_soc_dai_stream_valid() - check if a DAI supports the given stream
+ *
+ * Returns true if the DAI supports the indicated stream type.
+ */
+bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
+{
+	struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);
+
+	/* If the codec specifies any channels at all, it supports the stream */
+	return stream->channels_min;
+}
+
+/*
+ * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
+ */
+void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
+{
+	bool supported[SNDRV_PCM_STREAM_LAST + 1];
+	int direction;
+
+	for_each_pcm_streams(direction) {
+		struct snd_soc_dai_link_component *cpu;
+		struct snd_soc_dai_link_component *codec;
+		struct snd_soc_dai *dai;
+		bool supported_cpu = false;
+		bool supported_codec = false;
+		int i;
+
+		for_each_link_cpus(dai_link, i, cpu) {
+			dai = snd_soc_find_dai_with_mutex(cpu);
+			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
+				supported_cpu = true;
+				break;
+			}
+		}
+		for_each_link_codecs(dai_link, i, codec) {
+			dai = snd_soc_find_dai_with_mutex(codec);
+			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
+				supported_codec = true;
+				break;
+			}
+		}
+		supported[direction] = supported_cpu && supported_codec;
+	}
+
+	dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
+	dai_link->dpcm_capture  = supported[SNDRV_PCM_STREAM_CAPTURE];
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);
+
+void snd_soc_dai_action(struct snd_soc_dai *dai,
+			int stream, int action)
+{
+	/* see snd_soc_dai_stream_active() */
+	dai->stream_active[stream]	+= action;
+
+	/* see snd_soc_component_active() */
+	dai->component->active		+= action;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_action);
+
+int snd_soc_dai_active(struct snd_soc_dai *dai)
+{
+	int stream, active;
+
+	active = 0;
+	for_each_pcm_streams(stream)
+		active += dai->stream_active[stream];
+
+	return active;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_active);
+
+int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
+{
+	struct snd_soc_dai *dai;
+	int i;
+
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->probe_order != order)
+			continue;
+
+		if (dai->driver->probe) {
+			int ret = dai->driver->probe(dai);
+
+			if (ret < 0)
+				return soc_dai_ret(dai, ret);
+		}
+
+		dai->probed = 1;
+	}
+
+	return 0;
+}
+
+int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
+{
+	struct snd_soc_dai *dai;
+	int i, r, ret = 0;
+
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->remove_order != order)
+			continue;
+
+		if (dai->probed &&
+		    dai->driver->remove) {
+			r = dai->driver->remove(dai);
+			if (r < 0)
+				ret = r; /* use last error */
+		}
+
+		dai->probed = 0;
+	}
+
+	return ret;
+}
+
+int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *dai;
+	int i;
+
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->pcm_new) {
+			int ret = dai->driver->pcm_new(rtd, dai);
+			if (ret < 0)
+				return soc_dai_ret(dai, ret);
+		}
+	}
+
+	return 0;
+}
+
+int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *dai;
+	int i, ret;
+
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->ops &&
+		    dai->driver->ops->prepare) {
+			ret = dai->driver->ops->prepare(substream, dai);
+			if (ret < 0)
+				return soc_dai_ret(dai, ret);
+		}
+	}
+
+	return 0;
+}
+
+static int soc_dai_trigger(struct snd_soc_dai *dai,
+			   struct snd_pcm_substream *substream, int cmd)
+{
+	int ret = 0;
+
+	if (dai->driver->ops &&
+	    dai->driver->ops->trigger)
+		ret = dai->driver->ops->trigger(substream, cmd, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+
+int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
+			    int cmd, int rollback)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *dai;
+	int i, r, ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		for_each_rtd_dais(rtd, i, dai) {
+			ret = soc_dai_trigger(dai, substream, cmd);
+			if (ret < 0)
+				break;
+			soc_dai_mark_push(dai, substream, trigger);
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		for_each_rtd_dais(rtd, i, dai) {
+			if (rollback && !soc_dai_mark_match(dai, substream, trigger))
+				continue;
+
+			r = soc_dai_trigger(dai, substream, cmd);
+			if (r < 0)
+				ret = r; /* use last ret */
+			soc_dai_mark_pop(dai, substream, trigger);
+		}
+	}
+
+	return ret;
+}
+
+int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
+				    int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *dai;
+	int i, ret;
+
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->ops &&
+		    dai->driver->ops->bespoke_trigger) {
+			ret = dai->driver->ops->bespoke_trigger(substream,
+								cmd, dai);
+			if (ret < 0)
+				return soc_dai_ret(dai, ret);
+		}
+	}
+
+	return 0;
+}
+
+void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
+			   snd_pcm_sframes_t *cpu_delay,
+			   snd_pcm_sframes_t *codec_delay)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *dai;
+	int i;
+
+	/*
+	 * We're looking for the delay through the full audio path so it needs to
+	 * be the maximum of the DAIs doing transmit and the maximum of the DAIs
+	 * doing receive (ie, all CPUs and all CODECs) rather than just the maximum
+	 * of all DAIs.
+	 */
+
+	/* for CPU */
+	for_each_rtd_cpu_dais(rtd, i, dai)
+		if (dai->driver->ops &&
+		    dai->driver->ops->delay)
+			*cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai));
+
+	/* for Codec */
+	for_each_rtd_codec_dais(rtd, i, dai)
+		if (dai->driver->ops &&
+		    dai->driver->ops->delay)
+			*codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai));
+}
+
+int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
+			      struct snd_compr_stream *cstream)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->startup)
+		ret = dai->driver->cops->startup(cstream, dai);
+
+	/* mark cstream if succeeded */
+	if (ret == 0)
+		soc_dai_mark_push(dai, cstream, compr_startup);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
+
+void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
+				struct snd_compr_stream *cstream,
+				int rollback)
+{
+	if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
+		return;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->shutdown)
+		dai->driver->cops->shutdown(cstream, dai);
+
+	/* remove marked cstream */
+	soc_dai_mark_pop(dai, cstream, compr_startup);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);
+
+int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
+			      struct snd_compr_stream *cstream, int cmd)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->trigger)
+		ret = dai->driver->cops->trigger(cstream, cmd, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);
+
+int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
+				 struct snd_compr_stream *cstream,
+				 struct snd_compr_params *params)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->set_params)
+		ret = dai->driver->cops->set_params(cstream, params, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);
+
+int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
+				 struct snd_compr_stream *cstream,
+				 struct snd_codec *params)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->get_params)
+		ret = dai->driver->cops->get_params(cstream, params, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);
+
+int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
+			  struct snd_compr_stream *cstream,
+			  size_t bytes)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->ack)
+		ret = dai->driver->cops->ack(cstream, bytes, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);
+
+int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
+			      struct snd_compr_stream *cstream,
+			      struct snd_compr_tstamp *tstamp)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->pointer)
+		ret = dai->driver->cops->pointer(cstream, tstamp, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);
+
+int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
+				   struct snd_compr_stream *cstream,
+				   struct snd_compr_metadata *metadata)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->set_metadata)
+		ret = dai->driver->cops->set_metadata(cstream, metadata, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);
+
+int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
+				   struct snd_compr_stream *cstream,
+				   struct snd_compr_metadata *metadata)
+{
+	int ret = 0;
+
+	if (dai->driver->cops &&
+	    dai->driver->cops->get_metadata)
+		ret = dai->driver->cops->get_metadata(cstream, metadata, dai);
+
+	return soc_dai_ret(dai, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);