tlv320dac33.c File Reference

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/tlv320dac33-plat.h>
#include "tlv320dac33.h"

Go to the source code of this file.

Data Structures
struct	tlv320dac33_priv

Macros
#define	DAC33_FIFO_SIZE_16BIT   6144
#define	DAC33_FIFO_SIZE_24BIT   4096
#define	DAC33_MODE7_MARGIN   10 /* Safety margin for FIFO in Mode7 */
#define	BURST_BASEFREQ_HZ   49152000
#define	SAMPLES_TO_US(rate, samples)   (1000000000 / (((rate) * 1000) / (samples)))
#define	US_TO_SAMPLES(rate, us)   ((rate) / (1000000 / ((us) < 1000000 ? (us) : 1000000)))
#define	UTHR_FROM_PERIOD_SIZE(samples, playrate, burstrate)   (((samples)*5000) / (((burstrate)*5000) / ((burstrate) - (playrate))))
#define	DAC33_NUM_SUPPLIES   3
#define	DAC33_I2C_ADDR_AUTOINC   0x80
#define	CALC_BURST_RATE(bclkdiv, bclk_per_sample)   (BURST_BASEFREQ_HZ / bclkdiv / bclk_per_sample)
#define	CALC_OSCSET(rate, refclk)
#define	CALC_RATIOSET(rate, refclk)
#define	DAC33_RATES
#define	DAC33_FORMATS   (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)

Enumerations
enum	dac33_state { DAC33_IDLE = 0, DAC33_PREFILL, DAC33_PLAYBACK, DAC33_FLUSH }
enum	dac33_fifo_modes { DAC33_FIFO_BYPASS = 0, DAC33_FIFO_MODE1, DAC33_FIFO_MODE7, DAC33_FIFO_LAST_MODE }

Functions
	MODULE_DEVICE_TABLE (i2c, tlv320dac33_i2c_id)
	module_i2c_driver (tlv320dac33_i2c_driver)
	MODULE_DESCRIPTION ("ASoC TLV320DAC33 codec driver")
	MODULE_AUTHOR ("Peter Ujfalusi <[email protected]>")
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define BURST_BASEFREQ_HZ   49152000

Definition at line 54 of file tlv320dac33.c.

#define CALC_BURST_RATE	(		bclkdiv,
			bclk_per_sample
	)		(BURST_BASEFREQ_HZ / bclkdiv / bclk_per_sample)

Definition at line 822 of file tlv320dac33.c.

#define CALC_OSCSET	(		rate,
			refclk
	)

Value:

( \
    ((((rate * 10000) / refclk) * 4096) + 7000) / 10000)

Definition at line 860 of file tlv320dac33.c.

#define CALC_RATIOSET	(		rate,
			refclk
	)

Value:

( \
    ((((refclk  * 100000) / rate) * 16384) + 50000) / 100000)

Definition at line 862 of file tlv320dac33.c.

#define DAC33_FIFO_SIZE_16BIT   6144

Definition at line 50 of file tlv320dac33.c.

#define DAC33_FIFO_SIZE_24BIT   4096

Definition at line 51 of file tlv320dac33.c.

#define DAC33_FORMATS   (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)

Definition at line 1492 of file tlv320dac33.c.

#define DAC33_I2C_ADDR_AUTOINC   0x80

Definition at line 261 of file tlv320dac33.c.

#define DAC33_MODE7_MARGIN   10 /* Safety margin for FIFO in Mode7 */

Definition at line 52 of file tlv320dac33.c.

#define DAC33_NUM_SUPPLIES   3

Definition at line 84 of file tlv320dac33.c.

#define DAC33_RATES

Value:

(SNDRV_PCM_RATE_44100 | \
             SNDRV_PCM_RATE_48000)

Definition at line 1490 of file tlv320dac33.c.

#define SAMPLES_TO_US	(		rate,
			samples
	)		(1000000000 / (((rate) * 1000) / (samples)))

Definition at line 56 of file tlv320dac33.c.

#define US_TO_SAMPLES	(		rate,
			us
	)		((rate) / (1000000 / ((us) < 1000000 ? (us) : 1000000)))

Definition at line 59 of file tlv320dac33.c.

#define UTHR_FROM_PERIOD_SIZE	(		samples,
			playrate,
			burstrate
	)		(((samples)*5000) / (((burstrate)*5000) / ((burstrate) - (playrate))))

Definition at line 62 of file tlv320dac33.c.

Enumeration Type Documentation

enum dac33_fifo_modes

Enumerator:

DAC33_FIFO_BYPASS
DAC33_FIFO_MODE1
DAC33_FIFO_MODE7
DAC33_FIFO_LAST_MODE

Definition at line 77 of file tlv320dac33.c.

enum dac33_state

Enumerator:

DAC33_IDLE
DAC33_PREFILL
DAC33_PLAYBACK
DAC33_FLUSH

Definition at line 70 of file tlv320dac33.c.

Function Documentation

MODULE_AUTHOR

(

"Peter Ujfalusi <[email protected]>"

)

MODULE_DESCRIPTION

(

"ASoC TLV320DAC33 codec driver"

)

MODULE_DEVICE_TABLE	(	i2c	,
		tlv320dac33_i2c_id
	)

module_i2c_driver

(

tlv320dac33_i2c_driver

)

MODULE_LICENSE

(

"GPL"

)