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ASoC: sti: Add CPU DAI driver for playback

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

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Arnaud Pouliquen
2015-07-10 18:36:26 +01:00
committed by Mark Brown
parent e1ecace6a6
commit 76c2145ded
2 changed files with 1006 additions and 0 deletions
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sound/soc/sti/uniperif.h
+116
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@@ -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
+890
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