include/sound/cs4231.h - android_kernel_htc_msm8960 - Gitiles

 #ifndef __SOUND_CS4231_H
 #define __SOUND_CS4231_H

 /*
  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
  *  Definitions for CS4231 & InterWave chips & compatible chips
  *
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
  *   (at your option) any later version.
  *
  *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
  */

 #include "control.h"
 #include "pcm.h"
 #include "timer.h"

 #ifdef CONFIG_SBUS
 #define SBUS_SUPPORT
 #include <asm/sbus.h>
 #endif

 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
 #define EBUS_SUPPORT
 #include <linux/pci.h>
 #include <asm/ebus.h>
 #endif

 #if !defined(SBUS_SUPPORT) && !defined(EBUS_SUPPORT)
 #define LEGACY_SUPPORT
 #endif

 /* IO ports */

 #define CS4231P(x)		(c_d_c_CS4231##x)

 #define c_d_c_CS4231REGSEL	0
 #define c_d_c_CS4231REG		1
 #define c_d_c_CS4231STATUS	2
 #define c_d_c_CS4231PIO		3

 /* codec registers */

 #define CS4231_LEFT_INPUT	0x00	/* left input control */
 #define CS4231_RIGHT_INPUT	0x01	/* right input control */
 #define CS4231_AUX1_LEFT_INPUT	0x02	/* left AUX1 input control */
 #define CS4231_AUX1_RIGHT_INPUT	0x03	/* right AUX1 input control */
 #define CS4231_AUX2_LEFT_INPUT	0x04	/* left AUX2 input control */
 #define CS4231_AUX2_RIGHT_INPUT	0x05	/* right AUX2 input control */
 #define CS4231_LEFT_OUTPUT	0x06	/* left output control register */
 #define CS4231_RIGHT_OUTPUT	0x07	/* right output control register */
 #define CS4231_PLAYBK_FORMAT	0x08	/* clock and data format - playback - bits 7-0 MCE */
 #define CS4231_IFACE_CTRL	0x09	/* interface control - bits 7-2 MCE */
 #define CS4231_PIN_CTRL		0x0a	/* pin control */
 #define CS4231_TEST_INIT	0x0b	/* test and initialization */
 #define CS4231_MISC_INFO	0x0c	/* miscellaneaous information */
 #define CS4231_LOOPBACK		0x0d	/* loopback control */
 #define CS4231_PLY_UPR_CNT	0x0e	/* playback upper base count */
 #define CS4231_PLY_LWR_CNT	0x0f	/* playback lower base count */
 #define CS4231_ALT_FEATURE_1	0x10	/* alternate #1 feature enable */
 #define AD1845_AF1_MIC_LEFT	0x10	/* alternate #1 feature + MIC left */
 #define CS4231_ALT_FEATURE_2	0x11	/* alternate #2 feature enable */
 #define AD1845_AF2_MIC_RIGHT	0x11	/* alternate #2 feature + MIC right */
 #define CS4231_LEFT_LINE_IN	0x12	/* left line input control */
 #define CS4231_RIGHT_LINE_IN	0x13	/* right line input control */
 #define CS4231_TIMER_LOW	0x14	/* timer low byte */
 #define CS4231_TIMER_HIGH	0x15	/* timer high byte */
 #define CS4231_LEFT_MIC_INPUT	0x16	/* left MIC input control register (InterWave only) */
 #define AD1845_UPR_FREQ_SEL	0x16	/* upper byte of frequency select */
 #define CS4231_RIGHT_MIC_INPUT	0x17	/* right MIC input control register (InterWave only) */
 #define AD1845_LWR_FREQ_SEL	0x17	/* lower byte of frequency select */
 #define CS4236_EXT_REG		0x17	/* extended register access */
 #define CS4231_IRQ_STATUS	0x18	/* irq status register */
 #define CS4231_LINE_LEFT_OUTPUT	0x19	/* left line output control register (InterWave only) */
 #define CS4231_VERSION		0x19	/* CS4231(A) - version values */
 #define CS4231_MONO_CTRL	0x1a	/* mono input/output control */
 #define CS4231_LINE_RIGHT_OUTPUT 0x1b	/* right line output control register (InterWave only) */
 #define AD1845_PWR_DOWN		0x1b	/* power down control */
 #define CS4235_LEFT_MASTER	0x1b	/* left master output control */
 #define CS4231_REC_FORMAT	0x1c	/* clock and data format - record - bits 7-0 MCE */
 #define CS4231_PLY_VAR_FREQ	0x1d	/* playback variable frequency */
 #define AD1845_CLOCK		0x1d	/* crystal clock select and total power down */
 #define CS4235_RIGHT_MASTER	0x1d	/* right master output control */
 #define CS4231_REC_UPR_CNT	0x1e	/* record upper count */
 #define CS4231_REC_LWR_CNT	0x1f	/* record lower count */

 /* definitions for codec register select port - CODECP( REGSEL ) */

 #define CS4231_INIT		0x80	/* CODEC is initializing */
 #define CS4231_MCE		0x40	/* mode change enable */
 #define CS4231_TRD		0x20	/* transfer request disable */

 /* definitions for codec status register - CODECP( STATUS ) */

 #define CS4231_GLOBALIRQ	0x01	/* IRQ is active */

 /* definitions for codec irq status */

 #define CS4231_PLAYBACK_IRQ	0x10
 #define CS4231_RECORD_IRQ	0x20
 #define CS4231_TIMER_IRQ	0x40
 #define CS4231_ALL_IRQS		0x70
 #define CS4231_REC_UNDERRUN	0x08
 #define CS4231_REC_OVERRUN	0x04
 #define CS4231_PLY_OVERRUN	0x02
 #define CS4231_PLY_UNDERRUN	0x01

 /* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */

 #define CS4231_ENABLE_MIC_GAIN	0x20

 #define CS4231_MIXS_LINE	0x00
 #define CS4231_MIXS_AUX1	0x40
 #define CS4231_MIXS_MIC		0x80
 #define CS4231_MIXS_ALL		0xc0

 /* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */

 #define CS4231_LINEAR_8		0x00	/* 8-bit unsigned data */
 #define CS4231_ALAW_8		0x60	/* 8-bit A-law companded */
 #define CS4231_ULAW_8		0x20	/* 8-bit U-law companded */
 #define CS4231_LINEAR_16	0x40	/* 16-bit twos complement data - little endian */
 #define CS4231_LINEAR_16_BIG	0xc0	/* 16-bit twos complement data - big endian */
 #define CS4231_ADPCM_16		0xa0	/* 16-bit ADPCM */
 #define CS4231_STEREO		0x10	/* stereo mode */
 /* bits 3-1 define frequency divisor */
 #define CS4231_XTAL1		0x00	/* 24.576 crystal */
 #define CS4231_XTAL2		0x01	/* 16.9344 crystal */

 /* definitions for interface control register - CS4231_IFACE_CTRL */

 #define CS4231_RECORD_PIO	0x80	/* record PIO enable */
 #define CS4231_PLAYBACK_PIO	0x40	/* playback PIO enable */
 #define CS4231_CALIB_MODE	0x18	/* calibration mode bits */
 #define CS4231_AUTOCALIB	0x08	/* auto calibrate */
 #define CS4231_SINGLE_DMA	0x04	/* use single DMA channel */
 #define CS4231_RECORD_ENABLE	0x02	/* record enable */
 #define CS4231_PLAYBACK_ENABLE	0x01	/* playback enable */

 /* definitions for pin control register - CS4231_PIN_CTRL */

 #define CS4231_IRQ_ENABLE	0x02	/* enable IRQ */
 #define CS4231_XCTL1		0x40	/* external control #1 */
 #define CS4231_XCTL0		0x80	/* external control #0 */

 /* definitions for test and init register - CS4231_TEST_INIT */

 #define CS4231_CALIB_IN_PROGRESS 0x20	/* auto calibrate in progress */
 #define CS4231_DMA_REQUEST	0x10	/* DMA request in progress */

 /* definitions for misc control register - CS4231_MISC_INFO */

 #define CS4231_MODE2		0x40	/* MODE 2 */
 #define CS4231_IW_MODE3		0x6c	/* MODE 3 - InterWave enhanced mode */
 #define CS4231_4236_MODE3	0xe0	/* MODE 3 - CS4236+ enhanced mode */

 /* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */

 #define	CS4231_DACZ		0x01	/* zero DAC when underrun */
 #define CS4231_TIMER_ENABLE	0x40	/* codec timer enable */
 #define CS4231_OLB		0x80	/* output level bit */

 /* definitions for Extended Registers - CS4236+ */

 #define CS4236_REG(i23val)	(((i23val << 2) & 0x10) | ((i23val >> 4) & 0x0f))
 #define CS4236_I23VAL(reg)	((((reg)&0xf) << 4) | (((reg)&0x10) >> 2) | 0x8)

 #define CS4236_LEFT_LINE	0x08	/* left LINE alternate volume */
 #define CS4236_RIGHT_LINE	0x18	/* right LINE alternate volume */
 #define CS4236_LEFT_MIC		0x28	/* left MIC volume */
 #define CS4236_RIGHT_MIC	0x38	/* right MIC volume */
 #define CS4236_LEFT_MIX_CTRL	0x48	/* synthesis and left input mixer control */
 #define CS4236_RIGHT_MIX_CTRL	0x58	/* right input mixer control */
 #define CS4236_LEFT_FM		0x68	/* left FM volume */
 #define CS4236_RIGHT_FM		0x78	/* right FM volume */
 #define CS4236_LEFT_DSP		0x88	/* left DSP serial port volume */
 #define CS4236_RIGHT_DSP	0x98	/* right DSP serial port volume */
 #define CS4236_RIGHT_LOOPBACK	0xa8	/* right loopback monitor volume */
 #define CS4236_DAC_MUTE		0xb8	/* DAC mute and IFSE enable */
 #define CS4236_ADC_RATE		0xc8	/* indenpendent ADC sample frequency */
 #define CS4236_DAC_RATE		0xd8	/* indenpendent DAC sample frequency */
 #define CS4236_LEFT_MASTER	0xe8	/* left master digital audio volume */
 #define CS4236_RIGHT_MASTER	0xf8	/* right master digital audio volume */
 #define CS4236_LEFT_WAVE	0x0c	/* left wavetable serial port volume */
 #define CS4236_RIGHT_WAVE	0x1c	/* right wavetable serial port volume */
 #define CS4236_VERSION		0x9c	/* chip version and ID */

 /* defines for codec.mode */

 #define CS4231_MODE_NONE	0x0000
 #define CS4231_MODE_PLAY	0x0001
 #define CS4231_MODE_RECORD	0x0002
 #define CS4231_MODE_TIMER	0x0004
 #define CS4231_MODE_OPEN	(CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)

 /* defines for codec.hardware */

 #define CS4231_HW_DETECT        0x0000	/* let CS4231 driver detect chip */
 #define CS4231_HW_DETECT3	0x0001	/* allow mode 3 */
 #define CS4231_HW_TYPE_MASK	0xff00	/* type mask */
 #define CS4231_HW_CS4231_MASK   0x0100	/* CS4231 serie */
 #define CS4231_HW_CS4231        0x0100	/* CS4231 chip */
 #define CS4231_HW_CS4231A       0x0101	/* CS4231A chip */
 #define CS4231_HW_AD1845	0x0102	/* AD1845 chip */
 #define CS4231_HW_CS4232_MASK   0x0200	/* CS4232 serie (has control ports) */
 #define CS4231_HW_CS4232        0x0200	/* CS4232 */
 #define CS4231_HW_CS4232A       0x0201	/* CS4232A */
 #define CS4231_HW_CS4236	0x0202	/* CS4236 */
 #define CS4231_HW_CS4236B_MASK	0x0400	/* CS4236B serie (has extended control regs) */
 #define CS4231_HW_CS4235	0x0400	/* CS4235 - Crystal Clear (tm) stereo enhancement */
 #define CS4231_HW_CS4236B       0x0401	/* CS4236B */
 #define CS4231_HW_CS4237B       0x0402	/* CS4237B - SRS 3D */
 #define CS4231_HW_CS4238B	0x0403	/* CS4238B - QSOUND 3D */
 #define CS4231_HW_CS4239	0x0404	/* CS4239 - Crystal Clear (tm) stereo enhancement */
 /* compatible, but clones */
 #define CS4231_HW_INTERWAVE     0x1000	/* InterWave chip */
 #define CS4231_HW_OPL3SA2       0x1001	/* OPL3-SA2 chip */

 /* defines for codec.hwshare */
 #define CS4231_HWSHARE_IRQ	(1<<0)
 #define CS4231_HWSHARE_DMA1	(1<<1)
 #define CS4231_HWSHARE_DMA2	(1<<2)

 typedef struct _snd_cs4231 cs4231_t;

 struct _snd_cs4231 {
 	unsigned long port;		/* base i/o port */
 #ifdef LEGACY_SUPPORT
 	struct resource *res_port;
 	unsigned long cport;		/* control base i/o port (CS4236) */
 	struct resource *res_cport;
 	int irq;			/* IRQ line */
 	int dma1;			/* playback DMA */
 	int dma2;			/* record DMA */
 #endif
 	unsigned short version;		/* version of CODEC chip */
 	unsigned short mode;		/* see to CS4231_MODE_XXXX */
 	unsigned short hardware;	/* see to CS4231_HW_XXXX */
 	unsigned short hwshare;		/* shared resources */
 	unsigned short single_dma:1,	/* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
 		       ebus_flag:1;	/* SPARC: EBUS present */

 #ifdef EBUS_SUPPORT
 	struct ebus_dma_info eb2c;
         struct ebus_dma_info eb2p;
 #endif

 #if defined(SBUS_SUPPORT) || defined(EBUS_SUPPORT)
 	union {
 #ifdef SBUS_SUPPORT
 		struct sbus_dev         *sdev;
 #endif
 #ifdef EBUS_SUPPORT
 		struct pci_dev          *pdev;
 #endif
 	} dev_u;
 	unsigned int p_periods_sent;
 	unsigned int c_periods_sent;
 #endif

 	snd_card_t *card;
 	snd_pcm_t *pcm;
 	snd_pcm_substream_t *playback_substream;
 	snd_pcm_substream_t *capture_substream;
 	snd_timer_t *timer;

 	unsigned char image[32];	/* registers image */
 	unsigned char eimage[32];	/* extended registers image */
 	unsigned char cimage[16];	/* control registers image */
 	int mce_bit;
 	int calibrate_mute;
 	int sw_3d_bit;
 #ifdef LEGACY_SUPPORT
 	unsigned int p_dma_size;
 	unsigned int c_dma_size;
 #endif

 	spinlock_t reg_lock;
 	struct semaphore mce_mutex;
 	struct semaphore open_mutex;

 	int (*rate_constraint) (snd_pcm_runtime_t *runtime);
 	void (*set_playback_format) (cs4231_t *chip, snd_pcm_hw_params_t *hw_params, unsigned char pdfr);
 	void (*set_capture_format) (cs4231_t *chip, snd_pcm_hw_params_t *hw_params, unsigned char cdfr);
 	void (*trigger) (cs4231_t *chip, unsigned int what, int start);
 #ifdef CONFIG_PM
 	void (*suspend) (cs4231_t *chip);
 	void (*resume) (cs4231_t *chip);
 #endif
 	void *dma_private_data;
 #ifdef LEGACY_SUPPORT
 	int (*claim_dma) (cs4231_t *chip, void *dma_private_data, int dma);
 	int (*release_dma) (cs4231_t *chip, void *dma_private_data, int dma);
 #endif
 };

 /* exported functions */

 void snd_cs4231_out(cs4231_t *chip, unsigned char reg, unsigned char val);
 unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg);
 void snd_cs4236_ext_out(cs4231_t *chip, unsigned char reg, unsigned char val);
 unsigned char snd_cs4236_ext_in(cs4231_t *chip, unsigned char reg);
 void snd_cs4231_mce_up(cs4231_t *chip);
 void snd_cs4231_mce_down(cs4231_t *chip);

 irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id, struct pt_regs *regs);

 const char *snd_cs4231_chip_id(cs4231_t *chip);

 int snd_cs4231_create(snd_card_t * card,
 		      unsigned long port,
 		      unsigned long cport,
 		      int irq, int dma1, int dma2,
 		      unsigned short hardware,
 		      unsigned short hwshare,
 		      cs4231_t ** rchip);
 int snd_cs4231_pcm(cs4231_t * chip, int device, snd_pcm_t **rpcm);
 int snd_cs4231_timer(cs4231_t * chip, int device, snd_timer_t **rtimer);
 int snd_cs4231_mixer(cs4231_t * chip);

 int snd_cs4236_create(snd_card_t * card,
 		      unsigned long port,
 		      unsigned long cport,
 		      int irq, int dma1, int dma2,
 		      unsigned short hardware,
 		      unsigned short hwshare,
 		      cs4231_t ** rchip);
 int snd_cs4236_pcm(cs4231_t * chip, int device, snd_pcm_t **rpcm);
 int snd_cs4236_mixer(cs4231_t * chip);

 /*
  *  mixer library
  */

 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
   .info = snd_cs4231_info_single, \
   .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }

 int snd_cs4231_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo);
 int snd_cs4231_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);
 int snd_cs4231_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);

 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
   .info = snd_cs4231_info_double, \
   .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }

 int snd_cs4231_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo);
 int snd_cs4231_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);
 int snd_cs4231_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);

 #endif /* __SOUND_CS4231_H */
	#ifndef __SOUND_CS4231_H
	#define __SOUND_CS4231_H

	/*
	* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
	* Definitions for CS4231 & InterWave chips & compatible chips
	*
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*/

	#include "control.h"
	#include "pcm.h"
	#include "timer.h"

	#ifdef CONFIG_SBUS
	#define SBUS_SUPPORT
	#include <asm/sbus.h>
	#endif

	#if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
	#define EBUS_SUPPORT
	#include <linux/pci.h>
	#include <asm/ebus.h>
	#endif

	#if !defined(SBUS_SUPPORT) && !defined(EBUS_SUPPORT)
	#define LEGACY_SUPPORT
	#endif

	/* IO ports */

	#define CS4231P(x) (c_d_c_CS4231##x)

	#define c_d_c_CS4231REGSEL 0
	#define c_d_c_CS4231REG 1
	#define c_d_c_CS4231STATUS 2
	#define c_d_c_CS4231PIO 3

	/* codec registers */

	#define CS4231_LEFT_INPUT 0x00 /* left input control */
	#define CS4231_RIGHT_INPUT 0x01 /* right input control */
	#define CS4231_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */
	#define CS4231_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */
	#define CS4231_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */
	#define CS4231_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */
	#define CS4231_LEFT_OUTPUT 0x06 /* left output control register */
	#define CS4231_RIGHT_OUTPUT 0x07 /* right output control register */
	#define CS4231_PLAYBK_FORMAT 0x08 /* clock and data format - playback - bits 7-0 MCE */
	#define CS4231_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */
	#define CS4231_PIN_CTRL 0x0a /* pin control */
	#define CS4231_TEST_INIT 0x0b /* test and initialization */
	#define CS4231_MISC_INFO 0x0c /* miscellaneaous information */
	#define CS4231_LOOPBACK 0x0d /* loopback control */
	#define CS4231_PLY_UPR_CNT 0x0e /* playback upper base count */
	#define CS4231_PLY_LWR_CNT 0x0f /* playback lower base count */
	#define CS4231_ALT_FEATURE_1 0x10 /* alternate #1 feature enable */
	#define AD1845_AF1_MIC_LEFT 0x10 /* alternate #1 feature + MIC left */
	#define CS4231_ALT_FEATURE_2 0x11 /* alternate #2 feature enable */
	#define AD1845_AF2_MIC_RIGHT 0x11 /* alternate #2 feature + MIC right */
	#define CS4231_LEFT_LINE_IN 0x12 /* left line input control */
	#define CS4231_RIGHT_LINE_IN 0x13 /* right line input control */
	#define CS4231_TIMER_LOW 0x14 /* timer low byte */
	#define CS4231_TIMER_HIGH 0x15 /* timer high byte */
	#define CS4231_LEFT_MIC_INPUT 0x16 /* left MIC input control register (InterWave only) */
	#define AD1845_UPR_FREQ_SEL 0x16 /* upper byte of frequency select */
	#define CS4231_RIGHT_MIC_INPUT 0x17 /* right MIC input control register (InterWave only) */
	#define AD1845_LWR_FREQ_SEL 0x17 /* lower byte of frequency select */
	#define CS4236_EXT_REG 0x17 /* extended register access */
	#define CS4231_IRQ_STATUS 0x18 /* irq status register */
	#define CS4231_LINE_LEFT_OUTPUT 0x19 /* left line output control register (InterWave only) */
	#define CS4231_VERSION 0x19 /* CS4231(A) - version values */
	#define CS4231_MONO_CTRL 0x1a /* mono input/output control */
	#define CS4231_LINE_RIGHT_OUTPUT 0x1b /* right line output control register (InterWave only) */
	#define AD1845_PWR_DOWN 0x1b /* power down control */
	#define CS4235_LEFT_MASTER 0x1b /* left master output control */
	#define CS4231_REC_FORMAT 0x1c /* clock and data format - record - bits 7-0 MCE */
	#define CS4231_PLY_VAR_FREQ 0x1d /* playback variable frequency */
	#define AD1845_CLOCK 0x1d /* crystal clock select and total power down */
	#define CS4235_RIGHT_MASTER 0x1d /* right master output control */
	#define CS4231_REC_UPR_CNT 0x1e /* record upper count */
	#define CS4231_REC_LWR_CNT 0x1f /* record lower count */

	/* definitions for codec register select port - CODECP( REGSEL ) */

	#define CS4231_INIT 0x80 /* CODEC is initializing */
	#define CS4231_MCE 0x40 /* mode change enable */
	#define CS4231_TRD 0x20 /* transfer request disable */

	/* definitions for codec status register - CODECP( STATUS ) */

	#define CS4231_GLOBALIRQ 0x01 /* IRQ is active */

	/* definitions for codec irq status */

	#define CS4231_PLAYBACK_IRQ 0x10
	#define CS4231_RECORD_IRQ 0x20
	#define CS4231_TIMER_IRQ 0x40
	#define CS4231_ALL_IRQS 0x70
	#define CS4231_REC_UNDERRUN 0x08
	#define CS4231_REC_OVERRUN 0x04
	#define CS4231_PLY_OVERRUN 0x02
	#define CS4231_PLY_UNDERRUN 0x01

	/* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */

	#define CS4231_ENABLE_MIC_GAIN 0x20

	#define CS4231_MIXS_LINE 0x00
	#define CS4231_MIXS_AUX1 0x40
	#define CS4231_MIXS_MIC 0x80
	#define CS4231_MIXS_ALL 0xc0

	/* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */

	#define CS4231_LINEAR_8 0x00 /* 8-bit unsigned data */
	#define CS4231_ALAW_8 0x60 /* 8-bit A-law companded */
	#define CS4231_ULAW_8 0x20 /* 8-bit U-law companded */
	#define CS4231_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */
	#define CS4231_LINEAR_16_BIG 0xc0 /* 16-bit twos complement data - big endian */
	#define CS4231_ADPCM_16 0xa0 /* 16-bit ADPCM */
	#define CS4231_STEREO 0x10 /* stereo mode */
	/* bits 3-1 define frequency divisor */
	#define CS4231_XTAL1 0x00 /* 24.576 crystal */
	#define CS4231_XTAL2 0x01 /* 16.9344 crystal */

	/* definitions for interface control register - CS4231_IFACE_CTRL */

	#define CS4231_RECORD_PIO 0x80 /* record PIO enable */
	#define CS4231_PLAYBACK_PIO 0x40 /* playback PIO enable */
	#define CS4231_CALIB_MODE 0x18 /* calibration mode bits */
	#define CS4231_AUTOCALIB 0x08 /* auto calibrate */
	#define CS4231_SINGLE_DMA 0x04 /* use single DMA channel */
	#define CS4231_RECORD_ENABLE 0x02 /* record enable */
	#define CS4231_PLAYBACK_ENABLE 0x01 /* playback enable */

	/* definitions for pin control register - CS4231_PIN_CTRL */

	#define CS4231_IRQ_ENABLE 0x02 /* enable IRQ */
	#define CS4231_XCTL1 0x40 /* external control #1 */
	#define CS4231_XCTL0 0x80 /* external control #0 */

	/* definitions for test and init register - CS4231_TEST_INIT */

	#define CS4231_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */
	#define CS4231_DMA_REQUEST 0x10 /* DMA request in progress */

	/* definitions for misc control register - CS4231_MISC_INFO */

	#define CS4231_MODE2 0x40 /* MODE 2 */
	#define CS4231_IW_MODE3 0x6c /* MODE 3 - InterWave enhanced mode */
	#define CS4231_4236_MODE3 0xe0 /* MODE 3 - CS4236+ enhanced mode */

	/* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */

	#define CS4231_DACZ 0x01 /* zero DAC when underrun */
	#define CS4231_TIMER_ENABLE 0x40 /* codec timer enable */
	#define CS4231_OLB 0x80 /* output level bit */

	/* definitions for Extended Registers - CS4236+ */

	#define CS4236_REG(i23val) (((i23val << 2) & 0x10) \| ((i23val >> 4) & 0x0f))
	#define CS4236_I23VAL(reg) ((((reg)&0xf) << 4) \| (((reg)&0x10) >> 2) \| 0x8)

	#define CS4236_LEFT_LINE 0x08 /* left LINE alternate volume */
	#define CS4236_RIGHT_LINE 0x18 /* right LINE alternate volume */
	#define CS4236_LEFT_MIC 0x28 /* left MIC volume */
	#define CS4236_RIGHT_MIC 0x38 /* right MIC volume */
	#define CS4236_LEFT_MIX_CTRL 0x48 /* synthesis and left input mixer control */
	#define CS4236_RIGHT_MIX_CTRL 0x58 /* right input mixer control */
	#define CS4236_LEFT_FM 0x68 /* left FM volume */
	#define CS4236_RIGHT_FM 0x78 /* right FM volume */
	#define CS4236_LEFT_DSP 0x88 /* left DSP serial port volume */
	#define CS4236_RIGHT_DSP 0x98 /* right DSP serial port volume */
	#define CS4236_RIGHT_LOOPBACK 0xa8 /* right loopback monitor volume */
	#define CS4236_DAC_MUTE 0xb8 /* DAC mute and IFSE enable */
	#define CS4236_ADC_RATE 0xc8 /* indenpendent ADC sample frequency */
	#define CS4236_DAC_RATE 0xd8 /* indenpendent DAC sample frequency */
	#define CS4236_LEFT_MASTER 0xe8 /* left master digital audio volume */
	#define CS4236_RIGHT_MASTER 0xf8 /* right master digital audio volume */
	#define CS4236_LEFT_WAVE 0x0c /* left wavetable serial port volume */
	#define CS4236_RIGHT_WAVE 0x1c /* right wavetable serial port volume */
	#define CS4236_VERSION 0x9c /* chip version and ID */

	/* defines for codec.mode */

	#define CS4231_MODE_NONE 0x0000
	#define CS4231_MODE_PLAY 0x0001
	#define CS4231_MODE_RECORD 0x0002
	#define CS4231_MODE_TIMER 0x0004
	#define CS4231_MODE_OPEN (CS4231_MODE_PLAY\|CS4231_MODE_RECORD\|CS4231_MODE_TIMER)

	/* defines for codec.hardware */

	#define CS4231_HW_DETECT 0x0000 /* let CS4231 driver detect chip */
	#define CS4231_HW_DETECT3 0x0001 /* allow mode 3 */
	#define CS4231_HW_TYPE_MASK 0xff00 /* type mask */
	#define CS4231_HW_CS4231_MASK 0x0100 /* CS4231 serie */
	#define CS4231_HW_CS4231 0x0100 /* CS4231 chip */
	#define CS4231_HW_CS4231A 0x0101 /* CS4231A chip */
	#define CS4231_HW_AD1845 0x0102 /* AD1845 chip */
	#define CS4231_HW_CS4232_MASK 0x0200 /* CS4232 serie (has control ports) */
	#define CS4231_HW_CS4232 0x0200 /* CS4232 */
	#define CS4231_HW_CS4232A 0x0201 /* CS4232A */
	#define CS4231_HW_CS4236 0x0202 /* CS4236 */
	#define CS4231_HW_CS4236B_MASK 0x0400 /* CS4236B serie (has extended control regs) */
	#define CS4231_HW_CS4235 0x0400 /* CS4235 - Crystal Clear (tm) stereo enhancement */
	#define CS4231_HW_CS4236B 0x0401 /* CS4236B */
	#define CS4231_HW_CS4237B 0x0402 /* CS4237B - SRS 3D */
	#define CS4231_HW_CS4238B 0x0403 /* CS4238B - QSOUND 3D */
	#define CS4231_HW_CS4239 0x0404 /* CS4239 - Crystal Clear (tm) stereo enhancement */
	/* compatible, but clones */
	#define CS4231_HW_INTERWAVE 0x1000 /* InterWave chip */
	#define CS4231_HW_OPL3SA2 0x1001 /* OPL3-SA2 chip */

	/* defines for codec.hwshare */
	#define CS4231_HWSHARE_IRQ (1<<0)
	#define CS4231_HWSHARE_DMA1 (1<<1)
	#define CS4231_HWSHARE_DMA2 (1<<2)

	typedef struct _snd_cs4231 cs4231_t;

	struct _snd_cs4231 {
	unsigned long port; /* base i/o port */
	#ifdef LEGACY_SUPPORT
	struct resource *res_port;
	unsigned long cport; /* control base i/o port (CS4236) */
	struct resource *res_cport;
	int irq; /* IRQ line */
	int dma1; /* playback DMA */
	int dma2; /* record DMA */
	#endif
	unsigned short version; /* version of CODEC chip */
	unsigned short mode; /* see to CS4231_MODE_XXXX */
	unsigned short hardware; /* see to CS4231_HW_XXXX */
	unsigned short hwshare; /* shared resources */
	unsigned short single_dma:1, /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
	ebus_flag:1; /* SPARC: EBUS present */

	#ifdef EBUS_SUPPORT
	struct ebus_dma_info eb2c;
	struct ebus_dma_info eb2p;
	#endif

	#if defined(SBUS_SUPPORT) \|\| defined(EBUS_SUPPORT)
	union {
	#ifdef SBUS_SUPPORT
	struct sbus_dev *sdev;
	#endif
	#ifdef EBUS_SUPPORT
	struct pci_dev *pdev;
	#endif
	} dev_u;
	unsigned int p_periods_sent;
	unsigned int c_periods_sent;
	#endif

	snd_card_t *card;
	snd_pcm_t *pcm;
	snd_pcm_substream_t *playback_substream;
	snd_pcm_substream_t *capture_substream;
	snd_timer_t *timer;

	unsigned char image[32]; /* registers image */
	unsigned char eimage[32]; /* extended registers image */
	unsigned char cimage[16]; /* control registers image */
	int mce_bit;
	int calibrate_mute;
	int sw_3d_bit;
	#ifdef LEGACY_SUPPORT
	unsigned int p_dma_size;
	unsigned int c_dma_size;
	#endif

	spinlock_t reg_lock;
	struct semaphore mce_mutex;
	struct semaphore open_mutex;

	int (rate_constraint) (snd_pcm_runtime_t runtime);
	void (set_playback_format) (cs4231_t chip, snd_pcm_hw_params_t *hw_params, unsigned char pdfr);
	void (set_capture_format) (cs4231_t chip, snd_pcm_hw_params_t *hw_params, unsigned char cdfr);
	void (trigger) (cs4231_t chip, unsigned int what, int start);
	#ifdef CONFIG_PM
	void (suspend) (cs4231_t chip);
	void (resume) (cs4231_t chip);
	#endif
	void *dma_private_data;
	#ifdef LEGACY_SUPPORT
	int (claim_dma) (cs4231_t chip, void *dma_private_data, int dma);
	int (release_dma) (cs4231_t chip, void *dma_private_data, int dma);
	#endif
	};

	/* exported functions */

	void snd_cs4231_out(cs4231_t *chip, unsigned char reg, unsigned char val);
	unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg);
	void snd_cs4236_ext_out(cs4231_t *chip, unsigned char reg, unsigned char val);
	unsigned char snd_cs4236_ext_in(cs4231_t *chip, unsigned char reg);
	void snd_cs4231_mce_up(cs4231_t *chip);
	void snd_cs4231_mce_down(cs4231_t *chip);

	irqreturn_t snd_cs4231_interrupt(int irq, void dev_id, struct pt_regs regs);

	const char snd_cs4231_chip_id(cs4231_t chip);

	int snd_cs4231_create(snd_card_t * card,
	unsigned long port,
	unsigned long cport,
	int irq, int dma1, int dma2,
	unsigned short hardware,
	unsigned short hwshare,
	cs4231_t ** rchip);
	int snd_cs4231_pcm(cs4231_t * chip, int device, snd_pcm_t **rpcm);
	int snd_cs4231_timer(cs4231_t * chip, int device, snd_timer_t **rtimer);
	int snd_cs4231_mixer(cs4231_t * chip);

	int snd_cs4236_create(snd_card_t * card,
	unsigned long port,
	unsigned long cport,
	int irq, int dma1, int dma2,
	unsigned short hardware,
	unsigned short hwshare,
	cs4231_t ** rchip);
	int snd_cs4236_pcm(cs4231_t * chip, int device, snd_pcm_t **rpcm);
	int snd_cs4236_mixer(cs4231_t * chip);

	/*
	* mixer library
	*/

	#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	.info = snd_cs4231_info_single, \
	.get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
	.private_value = reg \| (shift << 8) \| (mask << 16) \| (invert << 24) }

	int snd_cs4231_info_single(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo);
	int snd_cs4231_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);
	int snd_cs4231_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);

	#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	.info = snd_cs4231_info_double, \
	.get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
	.private_value = left_reg \| (right_reg << 8) \| (shift_left << 16) \| (shift_right << 19) \| (mask << 24) \| (invert << 22) }

	int snd_cs4231_info_double(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo);
	int snd_cs4231_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);
	int snd_cs4231_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol);

	#endif /* __SOUND_CS4231_H */