ASoC: topology: Remaining kernel patches

index 33d00a4..a8d25be 100644
@@ -130,6 +130,10 @@
 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS      (1 << 1)
 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS    (1 << 2)
 
+/* DAI link flags */
+#define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_SUSPEND          (1 << 0)
+#define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME   (1 << 1)
+
 /*
  * Block Header.
  * This header precedes all object and object arrays below.

@@ -440,6 +444,8 @@ struct snd_soc_tplg_pcm {
 	struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
 	__le32 num_streams;	/* number of streams */
 	struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
+	__le32 flag_mask;       /* bitmask of flags to configure */
+	__le32 flags;           /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
 } __attribute__((packed));
 
 

index 6b05047..b6e7063 100644
@@ -1621,6 +1621,18 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	return snd_soc_register_dai(tplg->comp, dai_drv);
 }
 
+static void set_link_flags(struct snd_soc_dai_link *link,
+		unsigned int flag_mask, unsigned int flags)
+{
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_SUSPEND)
+		link->ignore_suspend =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_SUSPEND ? 1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME)
+		link->ignore_pmdown_time =
+		flags & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME ? 1 : 0;
+}
+
 /* create the FE DAI link */
 static int soc_tplg_link_create(struct soc_tplg *tplg,
 	struct snd_soc_tplg_pcm *pcm)

@@ -1644,6 +1656,8 @@ static int soc_tplg_link_create(struct soc_tplg *tplg,
 	link->dynamic = 1;
 	link->dpcm_playback = pcm->playback;
 	link->dpcm_capture = pcm->capture;
+	if (pcm->flag_mask)
+		set_link_flags(link, pcm->flag_mask, pcm->flags);
 
 	/* pass control to component driver for optional further init */
 	ret = soc_tplg_dai_link_load(tplg, link);

index a8d25be..309c9a7 100644
@@ -446,6 +446,7 @@ struct snd_soc_tplg_pcm {
 	struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
 	__le32 flag_mask;       /* bitmask of flags to configure */
 	__le32 flags;           /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
+	struct snd_soc_tplg_private priv;
 } __attribute__((packed));
 
 

index b6e7063..e76fb15 100644
@@ -1708,19 +1708,18 @@ static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
 	}
 
 	/* create the FE DAIs and DAI links */
-	pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
 	for (i = 0; i < count; i++) {
+		pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
 		if (pcm->size != sizeof(*pcm)) {
 			dev_err(tplg->dev, "ASoC: invalid pcm size\n");
 			return -EINVAL;
 		}
 
 		soc_tplg_pcm_create(tplg, pcm);
-		pcm++;
+		tplg->pos += (sizeof(*pcm) + pcm->priv.size);
 	}
 
 	dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
-	tplg->pos += sizeof(struct snd_soc_tplg_pcm) * count;
 
 	return 0;
 }

index 964b7de..534aae2 100644
@@ -15,6 +15,7 @@
 
 
 #include <linux/list.h>
+#include <sound/asoc.h>
 
 struct snd_pcm_substream;
 struct snd_soc_dapm_widget;

@@ -26,13 +27,13 @@ struct snd_compr_stream;
  * Describes the physical PCM data formating and clocking. Add new formats
  * to the end.
  */
-#define SND_SOC_DAIFMT_I2S		1 /* I2S mode */
-#define SND_SOC_DAIFMT_RIGHT_J		2 /* Right Justified mode */
-#define SND_SOC_DAIFMT_LEFT_J		3 /* Left Justified mode */
-#define SND_SOC_DAIFMT_DSP_A		4 /* L data MSB after FRM LRC */
-#define SND_SOC_DAIFMT_DSP_B		5 /* L data MSB during FRM LRC */
-#define SND_SOC_DAIFMT_AC97		6 /* AC97 */
-#define SND_SOC_DAIFMT_PDM		7 /* Pulse density modulation */
+#define SND_SOC_DAIFMT_I2S		SND_SOC_DAI_FORMAT_I2S
+#define SND_SOC_DAIFMT_RIGHT_J		SND_SOC_DAI_FORMAT_RIGHT_J
+#define SND_SOC_DAIFMT_LEFT_J		SND_SOC_DAI_FORMAT_LEFT_J
+#define SND_SOC_DAIFMT_DSP_A		SND_SOC_DAI_FORMAT_DSP_A
+#define SND_SOC_DAIFMT_DSP_B		SND_SOC_DAI_FORMAT_DSP_B
+#define SND_SOC_DAIFMT_AC97		SND_SOC_DAI_FORMAT_AC97
+#define SND_SOC_DAIFMT_PDM		SND_SOC_DAI_FORMAT_PDM
 
 /* left and right justified also known as MSB and LSB respectively */
 #define SND_SOC_DAIFMT_MSB		SND_SOC_DAIFMT_LEFT_J

index 309c9a7..de563d6 100644
@@ -134,6 +134,21 @@
 #define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_SUSPEND          (1 << 0)
 #define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME   (1 << 1)
 
+/* DAI physical PCM data formats.
+ * Add new formats to the end of the list.
+ */
+#define SND_SOC_DAI_FORMAT_I2S          1 /* I2S mode */
+#define SND_SOC_DAI_FORMAT_RIGHT_J      2 /* Right Justified mode */
+#define SND_SOC_DAI_FORMAT_LEFT_J       3 /* Left Justified mode */
+#define SND_SOC_DAI_FORMAT_DSP_A        4 /* L data MSB after FRM LRC */
+#define SND_SOC_DAI_FORMAT_DSP_B        5 /* L data MSB during FRM LRC */
+#define SND_SOC_DAI_FORMAT_AC97         6 /* AC97 */
+#define SND_SOC_DAI_FORMAT_PDM          7 /* Pulse density modulation */
+
+/* left and right justified also known as MSB and LSB respectively */
+#define SND_SOC_DAI_FORMAT_MSB          SND_SOC_DAI_FORMAT_LEFT_J
+#define SND_SOC_DAI_FORMAT_LSB          SND_SOC_DAI_FORMAT_RIGHT_J
+
 /*
  * Block Header.
  * This header precedes all object and object arrays below.

index de563d6..5d06d65 100644
@@ -39,6 +39,11 @@
  */
 #define SND_SOC_TPLG_STREAM_CONFIG_MAX  8
 
+/*
+ * Maximum number of BE/CC link HW configs
+ */
+#define SND_SOC_TPLG_HW_CONFIG_MAX	8
+
 /* individual kcontrol info types - can be mixed with other types */
 #define SND_SOC_TPLG_CTL_VOLSW		1
 #define SND_SOC_TPLG_CTL_VOLSW_SX	2

@@ -292,6 +297,35 @@ struct snd_soc_tplg_stream {
 	__le32 channels;	/* channels */
 } __attribute__((packed));
 
+
+/*
+ * Describes a single BE or CC link runtime supported hardware config,
+ * i.e. hardware audio formats.
+ */
+struct snd_soc_tplg_hw_config {
+	__le32 size;            /* in bytes of this structure */
+	__le32 id;		/* unique ID - - used to match */
+	__le32 fmt;		/* SND_SOC_DAI_FORMAT_ format value */
+	__u8 clock_gated;	/* 1 if clock can be gated to save power */
+	__u8 invert_bclk;	/* 1 for inverted BCLK, 0 for normal */
+	__u8 invert_fsync;	/* 1 for inverted frame clock, 0 for normal */
+	__u8 bclk_master;	/* 1 for master of BCLK, 0 for slave */
+	__u8 fsync_master;	/* 1 for master of FSYNC, 0 for slave */
+	__u8 mclk_direction;    /* 0 for input, 1 for output */
+	__le16 reserved;	/* for 32bit alignment */
+	__le32 mclk_rate;	/* MCLK or SYSCLK freqency in Hz */
+	__le32 bclk_rate;	/* BCLK freqency in Hz */
+	__le32 fsync_rate;	/* frame clock in Hz */
+	__le32 tdm_slots;	/* number of TDM slots in use */
+	__le32 tdm_slot_width;	/* width in bits for each slot */
+	__le32 tx_slots;	/* bit mask for active Tx slots */
+	__le32 rx_slots;	/* bit mask for active Rx slots */
+	__le32 tx_channels;	/* number of Tx channels */
+	__le32 tx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
+	__le32 rx_channels;	/* number of Rx channels */
+	__le32 rx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
+} __attribute__((packed));
+
 /*
  * Manifest. List totals for each payload type. Not used in parsing, but will
  * be passed to the component driver before any other objects in order for any

@@ -480,6 +514,9 @@ struct snd_soc_tplg_link_config {
 	__le32 id;              /* unique ID - used to match */
 	struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
 	__le32 num_streams;     /* number of streams */
+	struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
+	__le32 num_hw_configs;         /* number of hw configs */
+	__le32 default_hw_config_id;   /* default hw config ID for init */
 } __attribute__((packed));
 
 /*

index 5d06d65..d440bb1 100644
@@ -138,6 +138,9 @@
 /* DAI link flags */
 #define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_SUSPEND          (1 << 0)
 #define SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME   (1 << 1)
+#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES         (1 << 2)
+#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS      (1 << 3)
+#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS    (1 << 4)
 
 /* DAI physical PCM data formats.
  * Add new formats to the end of the list.

@@ -517,6 +520,9 @@ struct snd_soc_tplg_link_config {
 	struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
 	__le32 num_hw_configs;         /* number of hw configs */
 	__le32 default_hw_config_id;   /* default hw config ID for init */
+	__le32 flag_mask;       /* bitmask of flags to configure */
+	__le32 flags;           /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
+	struct snd_soc_tplg_private priv;
 } __attribute__((packed));
 
 /*

index d440bb1..019c8af 100644
@@ -515,6 +515,8 @@ struct snd_soc_tplg_pcm {
 struct snd_soc_tplg_link_config {
 	__le32 size;            /* in bytes of this structure */
 	__le32 id;              /* unique ID - used to match */
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
+	char stream_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* stream name - used to match */
 	struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
 	__le32 num_streams;     /* number of streams */
 	struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */

index 4f1c784..c3a38ee 100644
@@ -1671,6 +1671,9 @@ int snd_soc_add_dai_link(struct snd_soc_card *card,
 				struct snd_soc_dai_link *dai_link);
 void snd_soc_remove_dai_link(struct snd_soc_card *card,
 			     struct snd_soc_dai_link *dai_link);
+struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
+					       int id, const char *name,
+					       const char *stream_name);
 
 int snd_soc_register_dai(struct snd_soc_component *component,
 	struct snd_soc_dai_driver *dai_drv);

48 lines not on this page · raw message

index 4f1c784e44f6..c3a38ee2b006 100644
@@ -1671,6 +1671,9 @@ int snd_soc_add_dai_link(struct snd_soc_card *card,
 				struct snd_soc_dai_link *dai_link);
 void snd_soc_remove_dai_link(struct snd_soc_card *card,
 			     struct snd_soc_dai_link *dai_link);
+struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
+					       int id, const char *name,
+					       const char *stream_name);
 
 int snd_soc_register_dai(struct snd_soc_component *component,
 	struct snd_soc_dai_driver *dai_drv);

48 lines not on this page · raw message

index e76fb15..7526fe3 100644
@@ -49,9 +49,10 @@
 #define SOC_TPLG_PASS_GRAPH		5
 #define SOC_TPLG_PASS_PINS		6
 #define SOC_TPLG_PASS_BE_DAI		7
+#define SOC_TPLG_PASS_LINK		8
 
 #define SOC_TPLG_PASS_START	SOC_TPLG_PASS_MANIFEST
-#define SOC_TPLG_PASS_END	SOC_TPLG_PASS_BE_DAI
+#define SOC_TPLG_PASS_END	SOC_TPLG_PASS_LINK
 
 struct soc_tplg {
 	const struct firmware *fw;

@@ -1631,6 +1632,20 @@ static void set_link_flags(struct snd_soc_dai_link *link,
 	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME)
 		link->ignore_pmdown_time =
 		flags & SND_SOC_TPLG_LNK_FLGBIT_IGNORE_POWERDOWN_TIME ? 1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
+		link->symmetric_rates =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
+		link->symmetric_channels =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
+			1 : 0;
+
+	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
+		link->symmetric_samplebits =
+			flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
+			1 : 0;
 }
 
 /* create the FE DAI link */

@@ -1811,6 +1826,134 @@ static int soc_tplg_be_dai_elems_load(struct soc_tplg *tplg,
 	return 0;
 }
 
+/* *
+ * set_be_link_hw_format - Set the HW audio format of the BE DAI link.
+ * @tplg: topology context
+ * @cfg: topology BE DAI link configs.
+ *
+ * Topology context contains a list of supported HW formats (configs) and
+ * a default format ID for the BE link. This function will use this default ID
+ * to choose the HW format to set the link's DAI format for init.
+ */
+static void set_be_link_hw_format(struct snd_soc_dai_link *link,
+			struct snd_soc_tplg_link_config *cfg)
+{
+	struct snd_soc_tplg_hw_config *hw_config;
+	unsigned char bclk_master, fsync_master;
+	unsigned char invert_bclk, invert_fsync;
+	int i;
+
+	for (i = 0; i < cfg->num_hw_configs; i++) {
+		hw_config = &cfg->hw_config[i];
+		if (hw_config->id != cfg->default_hw_config_id)
+			continue;
+
+		link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+		/* clock signal polarity */
+		invert_bclk = hw_config->invert_bclk;
+		invert_fsync = hw_config->invert_fsync;
+		if (!invert_bclk && !invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
+		else if (!invert_bclk && invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
+		else if (invert_bclk && !invert_fsync)
+			link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
+		else
+			link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
+
+		/* clock masters */
+		bclk_master = hw_config->bclk_master;
+		fsync_master = hw_config->fsync_master;
+		if (!bclk_master && !fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
+		else if (bclk_master && !fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+		else if (!bclk_master && fsync_master)
+			link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
+		else
+			link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+
+		return;
+	}
+}
+
+
+/* Find and configure an existing BE DAI link */
+static int soc_tplg_be_link_config(struct soc_tplg *tplg,
+	struct snd_soc_tplg_link_config *cfg)
+{
+	struct snd_soc_dai_link *link;
+	const char *name, *stream_name;
+	int ret;
+
+	name = strlen(cfg->name) ? cfg->name : NULL;
+	stream_name = strlen(cfg->stream_name) ? cfg->stream_name : NULL;
+
+	link = snd_soc_find_dai_link(tplg->comp->card, cfg->id,
+							name, stream_name);
+	if (!link) {
+		dev_err(tplg->dev, "ASoC: BE DAI link %s (id %d) not exist\n",
+			name, cfg->id);
+		return -EINVAL;
+	}
+
+	/* hw format */
+	if (cfg->num_hw_configs)
+		set_be_link_hw_format(link, cfg);
+
+	/* flags */
+	if (cfg->flag_mask)
+		set_link_flags(link, cfg->flag_mask, cfg->flags);
+
+	/* pass control to component driver for optional further init */
+	ret = soc_tplg_dai_link_load(tplg, link);
+	if (ret < 0) {
+		dev_err(tplg->dev, "ASoC: BE link loading failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+
+/* Load BE link elements from the topology context */
+static int soc_tplg_be_link_elems_load(struct soc_tplg *tplg,
+	struct snd_soc_tplg_hdr *hdr)
+{
+	struct snd_soc_tplg_link_config *link;
+	int count = hdr->count;
+	int i, ret;
+
+	if (tplg->pass != SOC_TPLG_PASS_LINK) {
+		tplg->pos += hdr->size + hdr->payload_size;
+		return 0;
+	};
+
+	if (soc_tplg_check_elem_count(tplg,
+		sizeof(struct snd_soc_tplg_link_config), count,
+		hdr->payload_size, "BE DAI link")) {
+		dev_err(tplg->dev, "ASoC: invalid count %d for BE DAI link elems\n",
+			count);
+		return -EINVAL;
+	}
+
+	/* config BE DAI links */
+	for (i = 0; i < count; i++) {
+		link = (struct snd_soc_tplg_link_config *)tplg->pos;
+		if (link->size != sizeof(*link)) {
+			dev_err(tplg->dev, "ASoC: invalid link config size\n");
+			return -EINVAL;
+		}
+
+		ret = soc_tplg_be_link_config(tplg, link);
+		if (ret < 0)
+			return ret;
+		tplg->pos += (sizeof(*link) + link->priv.size);
+	}
+
+	return 0;
+}
 
 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
 				  struct snd_soc_tplg_hdr *hdr)

@@ -1917,6 +2060,8 @@ static int soc_tplg_load_header(struct soc_tplg *tplg,
 		return soc_tplg_pcm_elems_load(tplg, hdr);
 	case SND_SOC_TPLG_TYPE_BE_DAI:
 		return soc_tplg_be_dai_elems_load(tplg, hdr);
+	case SND_SOC_TPLG_TYPE_BACKEND_LINK:
+		return soc_tplg_be_link_elems_load(tplg, hdr);
 	case SND_SOC_TPLG_TYPE_MANIFEST:
 		return soc_tplg_manifest_load(tplg, hdr);
 	default: