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/*
 * Register bits and API for Wolfson WM97xx series of codecs
 */

#ifndef _LINUX_WM97XX_H
#define _LINUX_WM97XX_H

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/input.h>	/* Input device layer */
#include <linux/platform_device.h>

/*
 * WM97xx variants
 */
#define	WM97xx_GENERIC			0x0000
#define	WM97xx_WM1613			0x1613

/*
 * WM97xx AC97 Touchscreen registers
 */
#define AC97_WM97XX_DIGITISER1		0x76
#define AC97_WM97XX_DIGITISER2		0x78
#define AC97_WM97XX_DIGITISER_RD 	0x7a
#define AC97_WM9713_DIG1		0x74
#define AC97_WM9713_DIG2		AC97_WM97XX_DIGITISER1
#define AC97_WM9713_DIG3		AC97_WM97XX_DIGITISER2

/*
 * WM97xx register bits
 */
#define WM97XX_POLL		0x8000	/* initiate a polling measurement */
#define WM97XX_ADCSEL_X		0x1000	/* x coord measurement */
#define WM97XX_ADCSEL_Y		0x2000	/* y coord measurement */
#define WM97XX_ADCSEL_PRES	0x3000	/* pressure measurement */
#define WM97XX_AUX_ID1		0x4000
#define WM97XX_AUX_ID2		0x5000
#define WM97XX_AUX_ID3		0x6000
#define WM97XX_AUX_ID4		0x7000
#define WM97XX_ADCSEL_MASK	0x7000	/* ADC selection mask */
#define WM97XX_COO		0x0800	/* enable coordinate mode */
#define WM97XX_CTC		0x0400	/* enable continuous mode */
#define WM97XX_CM_RATE_93	0x0000	/* 93.75Hz continuous rate */
#define WM97XX_CM_RATE_187	0x0100	/* 187.5Hz continuous rate */
#define WM97XX_CM_RATE_375	0x0200	/* 375Hz continuous rate */
#define WM97XX_CM_RATE_750	0x0300	/* 750Hz continuous rate */
#define WM97XX_CM_RATE_8K	0x00f0	/* 8kHz continuous rate */
#define WM97XX_CM_RATE_12K	0x01f0	/* 12kHz continuous rate */
#define WM97XX_CM_RATE_24K	0x02f0	/* 24kHz continuous rate */
#define WM97XX_CM_RATE_48K	0x03f0	/* 48kHz continuous rate */
#define WM97XX_CM_RATE_MASK	0x03f0
#define WM97XX_RATE(i)		(((i & 3) << 8) | ((i & 4) ? 0xf0 : 0))
#define WM97XX_DELAY(i)		((i << 4) & 0x00f0)	/* sample delay times */
#define WM97XX_DELAY_MASK	0x00f0
#define WM97XX_SLEN		0x0008	/* slot read back enable */
#define WM97XX_SLT(i)		((i - 5) & 0x7)	/* panel slot (5-11) */
#define WM97XX_SLT_MASK		0x0007
#define WM97XX_PRP_DETW		0x4000	/* detect on, digitise off, wake */
#define WM97XX_PRP_DET		0x8000	/* detect on, digitise off, no wake */
#define WM97XX_PRP_DET_DIG	0xc000	/* setect on, digitise on */
#define WM97XX_RPR		0x2000	/* wake up on pen down */
#define WM97XX_PEN_DOWN		0x8000	/* pen is down */

/* WM9712 Bits */
#define WM9712_45W		0x1000	/* set for 5-wire touchscreen */
#define WM9712_PDEN		0x0800	/* measure only when pen down */
#define WM9712_WAIT		0x0200	/* wait until adc is read before next sample */
#define WM9712_PIL		0x0100	/* current used for pressure measurement. set 400uA else 200uA */
#define WM9712_MASK_HI		0x0040	/* hi on mask pin (47) stops conversions */
#define WM9712_MASK_EDGE	0x0080	/* rising/falling edge on pin delays sample */
#define	WM9712_MASK_SYNC	0x00c0	/* rising/falling edge on mask initiates sample */
#define WM9712_RPU(i)		(i&0x3f)	/* internal pull up on pen detect (64k / rpu) */
#define WM9712_PD(i)		(0x1 << i)	/* power management */

/* WM9712 Registers */
#define AC97_WM9712_POWER	0x24
#define AC97_WM9712_REV		0x58

/* WM9705 Bits */
#define WM9705_PDEN		0x1000	/* measure only when pen is down */
#define WM9705_PINV		0x0800	/* inverts sense of pen down output */
#define WM9705_BSEN		0x0400	/* BUSY flag enable, pin47 is 1 when busy */
#define WM9705_BINV		0x0200	/* invert BUSY (pin47) output */
#define WM9705_WAIT		0x0100	/* wait until adc is read before next sample */
#define WM9705_PIL		0x0080	/* current used for pressure measurement. set 400uA else 200uA */
#define WM9705_PHIZ		0x0040	/* set PHONE and PCBEEP inputs to high impedance */
#define WM9705_MASK_HI		0x0010	/* hi on mask stops conversions */
#define WM9705_MASK_EDGE	0x0020	/* rising/falling edge on pin delays sample */
#define	WM9705_MASK_SYNC	0x0030	/* rising/falling edge on mask initiates sample */
#defi