path: root/sound/soc/codecs/twl6040.c

/*
 * ALSA SoC TWL6040 codec driver
 *
 * Author:	 Misael Lopez Cruz <x0052729@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#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/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/i2c/twl.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>

#include "twl6040.h"

#define TWL6040_RATES	 (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
#define TWL6040_FORMATS	 (SNDRV_PCM_FMTBIT_S32_LE)

/* codec private data */
struct twl6040_data {
	int audpwron;
	int naudint;
	int codec_powered;
	int pll;
	int non_lp;
	unsigned int sysclk;
	struct snd_pcm_hw_constraint_list *sysclk_constraints;
	struct completion ready;
};

/*
 * twl6040 register cache & default register settings
 */
static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
	0x00, /* not used		0x00	*/
	0x4B, /* TWL6040_ASICID (ro)	0x01	*/
	0x00, /* TWL6040_ASICREV (ro)	0x02	*/
	0x00, /* TWL6040_INTID		0x03	*/
	0x00, /* TWL6040_INTMR		0x04	*/
	0x00, /* TWL6040_NCPCTRL	0x05	*/
	0x00, /* TWL6040_LDOCTL		0x06	*/
	0x60, /* TWL6040_HPPLLCTL	0x07	*/
	0x00, /* TWL6040_LPPLLCTL	0x08	*/
	0x4A, /* TWL6040_LPPLLDIV	0x09	*/
	0x00, /* TWL6040_AMICBCTL	0x0A	*/
	0x00, /* TWL6040_DMICBCTL	0x0B	*/
	0x18, /* TWL6040_MICLCTL	0x0C	- No input selected on Left Mic */
	0x18, /* TWL6040_MICRCTL	0x0D	- No input selected on Right Mic */
	0x00, /* TWL6040_MICGAIN	0x0E	*/
	0x1B, /* TWL6040_LINEGAIN	0x0F	*/
	0x00, /* TWL6040_HSLCTL		0x10	*/
	0x00, /* TWL6040_HSRCTL		0x11	*/
	0x00, /* TWL6040_HSGAIN		0x12	*/
	0x00, /* TWL6040_EARCTL		0x13	*/
	0x00, /* TWL6040_HFLCTL		0x14	*/
	0x00, /* TWL6040_HFLGAIN	0x15	*/
	0x00, /* TWL6040_HFRCTL		0x16	*/
	0x00, /* TWL6040_HFRGAIN	0x17	*/
	0x00, /* TWL6040_VIBCTLL	0x18	*/
	0x00, /* TWL6040_VIBDATL	0x19	*/
	0x00, /* TWL6040_VIBCTLR	0x1A	*/
	0x00, /* TWL6040_VIBDATR	0x1B	*/
	0x00, /* TWL6040_HKCTL1		0x1C	*/
	0x00, /* TWL6040_HKCTL2		0x1D	*/
	0x00, /* TWL6040_GPOCTL		0x1E	*/
	0x00, /* TWL6040_ALB		0x1F	*/
	0x00, /* TWL6040_DLB		0x20	*/
	0x00, /* not used		0x21	*/
	0x00, /* not used		0x22	*/
	0x00, /* not used		0x23	*/
	0x00, /* not used		0x24	*/
	0x00, /* not used		0x25	*/
	0x00, /* not used		0x26	*/
	0x00, /* not used		0x27	*/
	0x00, /* TWL6040_TRIM1		0x28	*/
	0x00, /* TWL6040_TRIM2		0x29	*/
	0x00, /* TWL6040_TRIM3		0x2A	*/
	0x00, /* TWL6040_HSOTRIM	0x2B	*/
	0x00, /* TWL6040_HFOTRIM	0x2C	*/
	0x09, /* TWL6040_ACCCTL		0x2D	*/
	0x00, /* TWL6040_STATUS (ro)	0x2E	*/
};

/*
 * twl6040 vio/gnd registers:
 * registers under vio/gnd supply can be accessed
 * before the power-up sequence, after NRESPWRON goes high
 */
static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
	TWL6040_REG_ASICID,
	TWL6040_REG_ASICREV,
	TWL6040_REG_INTID,
	TWL6040_REG_INTMR,
	TWL6040_REG_NCPCTL,
	TWL6040_REG_LDOCTL,
	TWL6040_REG_AMICBCTL,
	TWL6040_REG_DMICBCTL,
	TWL6040_REG_HKCTL1,
	TWL6040_REG_HKCTL2,
	TWL6040_REG_GPOCTL,
	TWL6040_REG_TRIM1,
	TWL6040_REG_TRIM2,
	TWL6040_REG_TRIM3,
	TWL6040_REG_HSOTRIM,
	TWL6040_REG_HFOTRIM,
	TWL6040_REG_ACCCTL,
	TWL6040_REG_STATUS,
};

/*
 * twl6040 vdd/vss registers:
 * registers under vdd/vss supplies can only be accessed
 * after the power-up sequence
 */
static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
	TWL6040_REG_HPPLLCTL,
	TWL6040_REG_LPPLLCTL,
	TWL6040_REG_LPPLLDIV,
	TWL6040_REG_MICLCTL,
	TWL6040_REG_MICRCTL,
	TWL6040_REG_MICGAIN,
	TWL6040_REG_LINEGAIN,
	TWL6040_REG_HSLCTL,
	TWL6040_REG_HSRCTL,
	TWL6040_REG_HSGAIN,
	TWL6040_REG_EARCTL,
	TWL6040_REG_HFLCTL,
	TWL6040_REG_HFLGAIN,
	TWL6040_REG_HFRCTL,
	TWL6040_REG_HFRGAIN,
	TWL6040_REG_VIBCTLL,
	TWL6040_REG_VIBDATL,
	TWL6040_REG_VIBCTLR,
	TWL6040_REG_VIBDATR