Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 76c2145d authored by Arnaud Pouliquen's avatar Arnaud Pouliquen Committed by Mark Brown
Browse files

ASoC: sti: Add CPU DAI driver for playback 



Add code to manage Uniperipheral player IP instances.
These DAIs are dedicated to playback and support I2S and IEC modes.

Signed-off-by: default avatarArnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent e1ecace6

sound/soc/sti/uniperif.h

+116 −0
Original line number Diff line number Diff line
@@ -10,6 +10,8 @@ 


#include <linux/regmap.h>



#include <sound/dmaengine_pcm.h>



/*

 * Register access macros

 */
@@ -1097,3 +1099,117 @@ 
		UNIPERIF_DBG_STANDBY_LEFT_SP_OFFSET(ip), \

		UNIPERIF_DBG_STANDBY_LEFT_SP_SHIFT(ip), \

		UNIPERIF_DBG_STANDBY_LEFT_SP_MASK(ip), value)



/*

 * uniperipheral IP capabilities

 */



#define UNIPERIF_FIFO_SIZE		70 /* FIFO is 70 cells deep */

#define UNIPERIF_FIFO_FRAMES		4  /* FDMA trigger limit in frames */



/*

 * Uniperipheral IP revisions

 */

enum uniperif_version {

	SND_ST_UNIPERIF_VERSION_UNKNOWN,

	/* SASG1 (Orly), Newman */

	SND_ST_UNIPERIF_VERSION_C6AUD0_UNI_1_0,

	/* SASC1, SASG2 (Orly2) */

	SND_ST_UNIPERIF_VERSION_UNI_PLR_1_0,

	/* SASC1, SASG2 (Orly2), TELSS, Cannes */

	SND_ST_UNIPERIF_VERSION_UNI_RDR_1_0,

	/* TELSS (SASC1) */

	SND_ST_UNIPERIF_VERSION_TDM_PLR_1_0,

	/* Cannes/Monaco */

	SND_ST_UNIPERIF_VERSION_UNI_PLR_TOP_1_0

};



enum uniperif_type {

	SND_ST_UNIPERIF_PLAYER_TYPE_NONE,

	SND_ST_UNIPERIF_PLAYER_TYPE_HDMI,

	SND_ST_UNIPERIF_PLAYER_TYPE_PCM,

	SND_ST_UNIPERIF_PLAYER_TYPE_SPDIF

};



enum uniperif_state {

	UNIPERIF_STATE_STOPPED,

	UNIPERIF_STATE_STARTED,

	UNIPERIF_STATE_STANDBY,

	UNIPERIF_STATE_UNDERFLOW,

	UNIPERIF_STATE_OVERFLOW = UNIPERIF_STATE_UNDERFLOW,

	UNIPERIF_STATE_XRUN

};



enum uniperif_iec958_encoding_mode {

	UNIPERIF_IEC958_ENCODING_MODE_PCM,

	UNIPERIF_IEC958_ENCODING_MODE_ENCODED

};



struct uniperif_info {

	int id; /* instance value of the uniperipheral IP */

	enum uniperif_type player_type;

	int underflow_enabled;		/* Underflow recovery mode */

};



struct uniperif_iec958_settings {

	enum uniperif_iec958_encoding_mode encoding_mode;

	struct snd_aes_iec958 iec958;

};



struct uniperif {

	/* System information */

	struct uniperif_info *info;

	struct device *dev;

	int ver; /* IP version, used by register access macros */

	struct regmap_field *clk_sel;



	/* capabilities */

	const struct snd_pcm_hardware *hw;



	/* Resources */

	struct resource *mem_region;

	void *base;

	unsigned long fifo_phys_address;

	int irq;



	/* Clocks */

	struct clk *clk;

	int mclk;



	/* Runtime data */

	enum uniperif_state state;



	struct snd_pcm_substream *substream;



	/* Specific to IEC958 player */

	struct uniperif_iec958_settings stream_settings;



	/*alsa ctrl*/

	struct snd_kcontrol_new *snd_ctrls;

	int num_ctrls;



	/* dai properties */

	unsigned int daifmt;



	/* DAI callbacks */

	const struct snd_soc_dai_ops *dai_ops;

};



struct sti_uniperiph_dai {

	int stream;

	struct uniperif *uni;

	struct snd_dmaengine_dai_dma_data dma_data;

};



struct sti_uniperiph_data {

	struct platform_device *pdev;

	struct snd_soc_dai_driver *dai;

	struct sti_uniperiph_dai dai_data;

};



/* uniperiph player*/

int uni_player_init(struct platform_device *pdev,

		    struct uniperif *uni_player);

int uni_player_resume(struct uniperif *player);



#endif

sound/soc/sti/uniperif_player.c

0 → 100644
+890 −0

File added.

Preview size limit exceeded, changes collapsed.