text: #ifndef __SOUND_ICE1712_H
  #define __SOUND_ICE1712_H
  
  /*
   *   ALSA driver for ICEnsemble ICE1712 (Envy24)
   *
   *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
   *
   *   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 <sound/control.h>
  #include <sound/ac97_codec.h>
  #include <sound/rawmidi.h>
  #include <sound/i2c.h>
  #include <sound/ak4xxx-adda.h>
  #include <sound/ak4114.h>
  #include <sound/pt2258.h>
  #include <sound/pcm.h>
  #include <sound/mpu401.h>
  
  
  /*
   *  Direct registers
   */
  
  #define ICEREG(ice, x) ((ice)->port + ICE1712_REG_##x)
  
  #define ICE1712_REG_CONTROL		0x00	/* byte */
  #define   ICE1712_RESET			0x80	/* reset whole chip */
  #define   ICE1712_SERR_LEVEL		0x04	/* SERR# level otherwise edge */
  #define   ICE1712_NATIVE		0x01	/* native mode otherwise SB */
  #define ICE1712_REG_IRQMASK		0x01	/* byte */
  #define   ICE1712_IRQ_MPU1		0x80
  #define   ICE1712_IRQ_TIMER		0x40
  #define   ICE1712_IRQ_MPU2		0x20
  #define   ICE1712_IRQ_PROPCM		0x10
  #define   ICE1712_IRQ_FM		0x08	/* FM/MIDI - legacy */
  #define   ICE1712_IRQ_PBKDS		0x04	/* playback DS channels */
  #define   ICE1712_IRQ_CONCAP		0x02	/* consumer capture */
  #define   ICE1712_IRQ_CONPBK		0x01	/* consumer playback */
  #define ICE1712_REG_IRQSTAT		0x02	/* byte */
  /* look to ICE1712_IRQ_* */
  #define ICE1712_REG_INDEX		0x03	/* byte - indirect CCIxx regs */
  #define ICE1712_REG_DATA		0x04	/* byte - indirect CCIxx regs */
  #define ICE1712_REG_NMI_STAT1		0x05	/* byte */
  #define ICE1712_REG_NMI_DATA		0x06	/* byte */
  #define ICE1712_REG_NMI_INDEX		0x07	/* byte */
  #define ICE1712_REG_AC97_INDEX		0x08	/* byte */
  #define ICE1712_REG_AC97_CMD		0x09	/* byte */
  #define   ICE1712_AC97_COLD		0x80	/* cold reset */
  #define   ICE1712_AC97_WARM		0x40	/* warm reset */
  #define   ICE1712_AC97_WRITE		0x20	/* W: write, R: write in progress */
  #define   ICE1712_AC97_READ		0x10	/* W: read, R: read in progress */
  #define   ICE1712_AC97_READY		0x08	/* codec ready status bit */
  #define   ICE1712_AC97_PBK_VSR		0x02	/* playback VSR */
  #define   ICE1712_AC97_CAP_VSR		0x01	/* capture VSR */
  #define ICE1712_REG_AC97_DATA		0x0a	/* word (little endian) */
  #define ICE1712_REG_MPU1_CTRL		0x0c	/* byte */
  #define ICE1712_REG_MPU1_DATA		0x0d	/* byte */
  #define ICE1712_REG_I2C_DEV_ADDR	0x10	/* byte */
  #define   ICE1712_I2C_WRITE		0x01	/* write direction */
  #define ICE1712_REG_I2C_BYTE_ADDR	0x11	/* byte */
  #define ICE1712_REG_I2C_DATA		0x12	/* byte */
  #define ICE1712_REG_I2C_CTRL		0x13	/* byte */
  #define   ICE1712_I2C_EEPROM		0x80	/* EEPROM exists */
  #define   ICE1712_I2C_BUSY		0x01	/* busy bit */
  #define ICE1712_REG_CONCAP_ADDR		0x14	/* dword - consumer capture */
  #define ICE1712_REG_CONCAP_COUNT	0x18	/* word - current/base count */
  #define ICE1712_REG_SERR_SHADOW		0x1b	/* byte */
  #define ICE1712_REG_MPU2_CTRL		0x1c	/* byte */
  #define ICE1712_REG_MPU2_DATA		0x1d	/* byte */
  #define ICE1712_REG_TIMER		0x1e	/* word */
  
  /*
   *  Indirect registers
   */
  
  #define ICE1712_IREG_PBK_COUNT_LO	0x00
  #define ICE1712_IREG_PBK_COUNT_HI	0x01
  #define ICE1712_IREG_PBK_CTRL		0x02
  #define ICE1712_IREG_PBK_LEFT		0x03	/* left volume */
  #define ICE1712_IREG_PBK_RIGHT		0x04	/* right volume */
  #define ICE1712_IREG_PBK_SOFT		0x05	/* soft volume */
  #define ICE1712_IREG_PBK_RATE_LO	0x06
  #define ICE1712_IREG_PBK_RATE_MID	0x07
  #define ICE1712_IREG_PBK_RATE_HI	0x08
  #define ICE1712_IREG_CAP_COUNT_LO	0x10
  #define ICE1712_IREG_CAP_COUNT_HI	0x11
  #define ICE1712_IREG_CAP_CTRL		0x12
  #define ICE1712_IREG_GPIO_DATA		0x20
  #define ICE1712_IREG_GPIO_WRITE_MASK	0x21
  #define ICE1712_IREG_GPIO_DIRECTION	0x22
  #define ICE1712_IREG_CONSUMER_POWERDOWN	0x30
  #define ICE1712_IREG_PRO_POWERDOWN	0x31
  
  /*
   *  Consumer section direct DMA registers
   */
  
  #define ICEDS(ice, x) ((ice)->dmapath_port + ICE1712_DS_##x)
  
  #define ICE1712_DS_INTMASK		0x00	/* word - interrupt mask */
  #define ICE1712_DS_INTSTAT		0x02	/* word - interrupt status */
  #define ICE1712_DS_DATA			0x04	/* dword - channel data */
  #define ICE1712_DS_INDEX		0x08	/* dword - channel index */
  
  /*
   *  Consumer section channel registers
   */
  
  #define ICE1712_DSC_ADDR0		0x00	/* dword - base address 0 */
  #define ICE1712_DSC_COUNT0		0x01	/* word - count 0 */
  #define ICE1712_DSC_ADDR1		0x02	/* dword - base address 1 */
  #define ICE1712_DSC_COUNT1		0x03	/* word - count 1 */
  #define ICE1712_DSC_CONTROL		0x04	/* byte - control & status */
  #define   ICE1712_BUFFER1		0x80	/* buffer1 is active */
  #define   ICE1712_BUFFER1_AUTO		0x40	/* buffer1 auto init */
  #define   ICE1712_BUFFER0_AUTO		0x20	/* buffer0 auto init */
  #define   ICE1712_FLUSH			0x10	/* flush FIFO */
  #define   ICE1712_STEREO		0x08	/* stereo */
  #define   ICE1712_16BIT			0x04	/* 16-bit data */
  #define   ICE1712_PAUSE			0x02	/* pause */
  #define   ICE1712_START			0x01	/* start */
  #define ICE1712_DSC_RATE		0x05	/* dword - rate */
  #define ICE1712_DSC_VOLUME		0x06	/* word - volume control */
  
  /*
   *  Professional multi-track direct control registers
   */
  
  #define ICEMT(ice, x) ((ice)->profi_port + ICE1712_MT_##x)
  
  #define ICE1712_MT_IRQ			0x00	/* byte - interrupt mask */
  #define   ICE1712_MULTI_CAPTURE		0x80	/* capture IRQ */
  #define   ICE1712_MULTI_PLAYBACK	0x40	/* playback IRQ */
  #define   ICE1712_MULTI_CAPSTATUS	0x02	/* capture IRQ status */
  #define   ICE1712_MULTI_PBKSTATUS	0x01	/* playback IRQ status */
  #define ICE1712_MT_RATE			0x01	/* byte - sampling rate select */
  #define   ICE1712_SPDIF_MASTER		0x10	/* S/PDIF input is master clock */
  #define ICE1712_MT_I2S_FORMAT		0x02	/* byte - I2S data format */
  #define ICE1712_MT_AC97_INDEX		0x04	/* byte - AC'97 index */
  #define ICE1712_MT_AC97_CMD		0x05	/* byte - AC'97 command & status */
  /* look to ICE1712_AC97_* */
  #define ICE1712_MT_AC97_DATA		0x06	/* word - AC'97 data */
  #define ICE1712_MT_PLAYBACK_ADDR	0x10	/* dword - playback address */
  #define ICE1712_MT_PLAYBACK_SIZE	0x14	/* word - playback size */
  #define ICE1712_MT_PLAYBACK_COUNT	0x16	/* word - playback count */
  #define ICE1712_MT_PLAYBACK_CONTROL	0x18	/* byte - control */
  #define   ICE1712_CAPTURE_START_SHADOW	0x04	/* capture start */
  #define   ICE1712_PLAYBACK_PAUSE	0x02	/* playback pause */
  #define   ICE1712_PLAYBACK_START	0x01	/* playback start */
  #define ICE1712_MT_CAPTURE_ADDR		0x20	/* dword - capture address */
  #define ICE1712_MT_CAPTURE_SIZE		0x24	/* word - capture size */
  #define ICE1712_MT_CAPTURE_COUNT	0x26	/* word - capture count */
  #define ICE1712_MT_CAPTURE_CONTROL	0x28	/* byte - control */
  #define   ICE1712_CAPTURE_START		0x01	/* capture start */
  #define ICE1712_MT_ROUTE_PSDOUT03	0x30	/* word */
  #define ICE1712_MT_ROUTE_SPDOUT		0x32	/* word */
  #define ICE1712_MT_ROUTE_CAPTURE	0x34	/* dword */
  #define ICE1712_MT_MONITOR_VOLUME	0x38	/* word */
  #define ICE1712_MT_MONITOR_INDEX	0x3a	/* byte */
  #define ICE1712_MT_MONITOR_RATE		0x3b	/* byte */
  #define ICE1712_MT_MONITOR_ROUTECTRL	0x3c	/* byte */
  #define   ICE1712_ROUTE_AC97		0x01	/* route digital mixer output to AC'97 */
  #define ICE1712_MT_MONITOR_PEAKINDEX	0x3e	/* byte */
  #define ICE1712_MT_MONITOR_PEAKDATA	0x3f	/* byte */
  
  /*
   *  Codec configuration bits
   */
  
  /* PCI[60] System Configuration */
  #define ICE1712_CFG_CLOCK	0xc0
  #define   ICE1712_CFG_CLOCK512	0x00	/* 22.5692Mhz, 44.1kHz*512 */
  #define   ICE1712_CFG_CLOCK384  0x40	/* 16.9344Mhz, 44.1kHz*384 */
  #define   ICE1712_CFG_EXT	0x80	/* external clock */
  #define ICE1712_CFG_2xMPU401	0x20	/* two MPU401 UARTs */
  #define ICE1712_CFG_NO_CON_AC97 0x10	/* consumer AC'97 codec is not present */
  #define ICE1712_CFG_ADC_MASK	0x0c	/* one, two, three, four stereo ADCs */
  #define ICE1712_CFG_DAC_MASK	0x03	/* one, two, three, four stereo DACs */
  /* PCI[61] AC-Link Configuration */
  #define ICE1712_CFG_PRO_I2S	0x80	/* multitrack converter: I2S or AC'97 */
  #define ICE1712_CFG_AC97_PACKED	0x01	/* split or packed mode - AC'97 */
  /* PCI[62] I2S Features */
  #define ICE1712_CFG_I2S_VOLUME	0x80	/* volume/mute capability */
  #define ICE1712_CFG_I2S_96KHZ	0x40	/* supports 96kHz sampling */
  #define ICE1712_CFG_I2S_RESMASK	0x30	/* resolution mask, 16,18,20,24-bit */
  #define ICE1712_CFG_I2S_OTHER	0x0f	/* other I2S IDs */
  /* PCI[63] S/PDIF Configuration */
  #define ICE1712_CFG_I2S_CHIPID	0xfc	/* I2S chip ID */
  #define ICE1712_CFG_SPDIF_IN	0x02	/* S/PDIF input is present */
  #define ICE1712_CFG_SPDIF_OUT	0x01	/* S/PDIF output is present */
  
  /*
   * DMA mode values
   * identical with DMA_XXX on i386 architecture.
   */
  #define ICE1712_DMA_MODE_WRITE		0x48
  #define ICE1712_DMA_AUTOINIT		0x10
  
  
  /*
   *
   */
  
  struct snd_ice1712;
  
  struct snd_ice1712_eeprom {
  	unsigned int subvendor;	/* PCI[2c-2f] */
  	unsigned char size;	/* size of EEPROM image in bytes */
  	unsigned char version;	/* must be 1 (or 2 for vt1724) */
  	unsigned char data[32];
  	unsigned int gpiomask;
  	unsigned int gpiostate;
  	unsigned int gpiodir;
  };
  
  enum {
  	ICE_EEP1_CODEC = 0,	/* 06 */
  	ICE_EEP1_ACLINK,	/* 07 */
  	ICE_EEP1_I2SID,		/* 08 */
  	ICE_EEP1_SPDIF,		/* 09 */
  	ICE_EEP1_GPIO_MASK,	/* 0a */
  	ICE_EEP1_GPIO_STATE,	/* 0b */
  	ICE_EEP1_GPIO_DIR,	/* 0c */
  	ICE_EEP1_AC97_MAIN_LO,	/* 0d */
  	ICE_EEP1_AC97_MAIN_HI,	/* 0e */
  	ICE_EEP1_AC97_PCM_LO,	/* 0f */
  	ICE_EEP1_AC97_PCM_HI,	/* 10 */
  	ICE_EEP1_AC97_REC_LO,	/* 11 */
  	ICE_EEP1_AC97_REC_HI,	/* 12 */
  	ICE_EEP1_AC97_RECSRC,	/* 13 */
  	ICE_EEP1_DAC_ID,	/* 14 */
  	ICE_EEP1_DAC_ID1,
  	ICE_EEP1_DAC_ID2,
  	ICE_EEP1_DAC_ID3,
  	ICE_EEP1_ADC_ID,	/* 18 */
  	ICE_EEP1_ADC_ID1,
  	ICE_EEP1_ADC_ID2,
  	ICE_EEP1_ADC_ID3
  };
  
  #define ice_has_con_ac97(ice)	(!((ice)->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97))
  
  
  struct snd_ak4xxx_private {
  	unsigned int cif:1;		/* CIF mode */
  	unsigned char caddr;		/* C0 and C1 bits */
  	unsigned int data_mask;		/* DATA gpio bit */
  	unsigned int clk_mask;		/* CLK gpio bit */
  	unsigned int cs_mask;		/* bit mask for select/deselect address */
  	unsigned int cs_addr;		/* bits to select address */
  	unsigned int cs_none;		/* bits to deselect address */
  	unsigned int add_flags;		/* additional bits at init */
  	unsigned int mask_flags;	/* total mask bits */
  	struct snd_akm4xxx_ops {
  		void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate);
  	} ops;
  };
  
  struct snd_ice1712_spdif {
  	unsigned char cs8403_bits;
  	unsigned char cs8403_stream_bits;
  	struct snd_kcontrol *stream_ctl;
  
  	struct snd_ice1712_spdif_ops {
  		void (*open)(struct snd_ice1712 *, struct snd_pcm_substream *);
  		void (*setup_rate)(struct snd_ice1712 *, int rate);
  		void (*close)(struct snd_ice1712 *, struct snd_pcm_substream *);
  		void (*default_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
  		int (*default_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
  		void (*stream_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
  		int (*stream_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
  	} ops;
  };
  
  
  struct snd_ice1712 {
  	unsigned long conp_dma_size;
  	unsigned long conc_dma_size;
  	unsigned long prop_dma_size;
  	unsigned long proc_dma_size;
  	int irq;
  
  	unsigned long port;
  	unsigned long ddma_port;
  	unsigned long dmapath_port;
  	unsigned long profi_port;
  
  	struct pci_dev *pci;
  	struct snd_card *card;
  	struct snd_pcm *pcm;
  	struct snd_pcm *pcm_ds;
  	struct snd_pcm *pcm_pro;
  	struct snd_pcm_substream *playback_con_substream;
  	struct snd_pcm_substream *playback_con_substream_ds[6];
  	struct snd_pcm_substream *capture_con_substream;
  	struct snd_pcm_substream *playback_pro_substream;
  	struct snd_pcm_substream *capture_pro_substream;
  	unsigned int playback_pro_size;
  	unsigned int capture_pro_size;
  	unsigned int playback_con_virt_addr[6];
  	unsigned int playback_con_active_buf[6];
  	unsigned int capture_con_virt_addr;
  	unsigned int ac97_ext_id;
  	struct snd_ac97 *ac97;
  	struct snd_rawmidi *rmidi[2];
  
  	spinlock_t reg_lock;
  	struct snd_info_entry *proc_entry;
  
  	struct snd_ice1712_eeprom eeprom;
  
  	unsigned int pro_volumes[20];
  	unsigned int omni:1;		/* Delta Omni I/O */
  	unsigned int dxr_enable:1;	/* Terratec DXR enable for DMX6FIRE */
  	unsigned int vt1724:1;
  	unsigned int vt1720:1;
  	unsigned int has_spdif:1;	/* VT1720/4 - has SPDIF I/O */
  	unsigned int force_pdma4:1;	/* VT1720/4 - PDMA4 as non-spdif */
  	unsigned int force_rdma1:1;	/* VT1720/4 - RDMA1 as non-spdif */
  	unsigned int midi_output:1;	/* VT1720/4: MIDI output triggered */
  	unsigned int midi_input:1;	/* VT1720/4: MIDI input triggered */
  	unsigned int own_routing:1;	/* VT1720/4: use own routing ctls */
  	unsigned int num_total_dacs;	/* total DACs */
  	unsigned int num_total_adcs;	/* total ADCs */
  	unsigned int cur_rate;		/* current rate */
  
  	struct mutex open_mutex;
  	struct snd_pcm_substream *pcm_reserved[4];
  	struct snd_pcm_hw_constraint_list *hw_rates; /* card-specific rate constraints */
  
  	unsigned int akm_codecs;
  	struct snd_akm4xxx *akm;
  	struct snd_ice1712_spdif spdif;
  
  	struct mutex i2c_mutex;	/* I2C mutex for ICE1724 registers */
  	struct snd_i2c_bus *i2c;		/* I2C bus */
  	struct snd_i2c_device *cs8427;	/* CS8427 I2C device */
  	unsigned int cs8427_timeout;	/* CS8427 reset timeout in HZ/100 */
  
  	struct ice1712_gpio {
  		unsigned int direction;		/* current direction bits */
  		unsigned int write_mask;	/* current mask bits */
  		unsigned int saved[2];		/* for ewx_i2c */
  		/* operators */
  		void (*set_mask)(struct snd_ice1712 *ice, unsigned int data);
  		unsigned int (*get_mask)(struct snd_ice1712 *ice);
  		void (*set_dir)(struct snd_ice1712 *ice, unsigned int data);
  		unsigned int (*get_dir)(struct snd_ice1712 *ice);
  		void (*set_data)(struct snd_ice1712 *ice, unsigned int data);
  		unsigned int (*get_data)(struct snd_ice1712 *ice);
  		/* misc operators - move to another place? */
  		void (*set_pro_rate)(struct snd_ice1712 *ice, unsigned int rate);
  		void (*i2s_mclk_changed)(struct snd_ice1712 *ice);
  	} gpio;
  	struct mutex gpio_mutex;
  
  	/* other board-specific data */
  	void *spec;
  
  	/* VT172x specific */
  	int pro_rate_default;
  	int (*is_spdif_master)(struct snd_ice1712 *ice);
  	unsigned int (*get_rate)(struct snd_ice1712 *ice);
  	void (*set_rate)(struct snd_ice1712 *ice, unsigned int rate);
  	unsigned char (*set_mclk)(struct snd_ice1712 *ice, unsigned int rate);
  	int (*set_spdif_clock)(struct snd_ice1712 *ice, int type);
  	int (*get_spdif_master_type)(struct snd_ice1712 *ice);
  	char **ext_clock_names;
  	int ext_clock_count;
  	void (*pro_open)(struct snd_ice1712 *, struct snd_pcm_substream *);
  #ifdef CONFIG_PM
  	int (*pm_suspend)(struct snd_ice1712 *);
  	int (*pm_resume)(struct snd_ice1712 *);
  	unsigned int pm_suspend_enabled:1;
  	unsigned int pm_saved_is_spdif_master:1;
  	unsigned int pm_saved_spdif_ctrl;
  	unsigned char pm_saved_spdif_cfg;
  	unsigned int pm_saved_route;
  #endif
  };
  
  
  /*
   * gpio access functions
   */
  static inline void snd_ice1712_gpio_set_dir(struct snd_ice1712 *ice, unsigned int bits)
  {
  	ice->gpio.set_dir(ice, bits);
  }
  
  static inline unsigned int snd_ice1712_gpio_get_dir(struct snd_ice1712 *ice)
  {
  	return ice->gpio.get_dir(ice);
  }
  
  static inline void snd_ice1712_gpio_set_mask(struct snd_ice1712 *ice, unsigned int bits)
  {
  	ice->gpio.set_mask(ice, bits);
  }
  
  static inline void snd_ice1712_gpio_write(struct snd_ice1712 *ice, unsigned int val)
  {
  	ice->gpio.set_data(ice, val);
  }
  
  static inline unsigned int snd_ice1712_gpio_read(struct snd_ice1712 *ice)
  {
  	return ice->gpio.get_data(ice);
  }
  
  /*
   * save and restore gpio status
   * The access to gpio will be protected by mutex, so don't forget to
   * restore!
   */
  static inline void snd_ice1712_save_gpio_status(struct snd_ice1712 *ice)
  {
  	mutex_lock(&ice->gpio_mutex);
  	ice->gpio.saved[0] = ice->gpio.direction;
  	ice->gpio.saved[1] = ice->gpio.write_mask;
  }
  
  static inline void snd_ice1712_restore_gpio_status(struct snd_ice1712 *ice)
  {
  	ice->gpio.set_dir(ice, ice->gpio.saved[0]);
  	ice->gpio.set_mask(ice, ice->gpio.saved[1]);
  	ice->gpio.direction = ice->gpio.saved[0];
  	ice->gpio.write_mask = ice->gpio.saved[1];
  	mutex_unlock(&ice->gpio_mutex);
  }
  
  /* for bit controls */
  #define ICE1712_GPIO(xiface, xname, xindex, mask, invert, xaccess) \
  { .iface = xiface, .name = xname, .access = xaccess, .info = snd_ctl_boolean_mono_info, \
    .get = snd_ice1712_gpio_get, .put = snd_ice1712_gpio_put, \
    .private_value = mask | (invert << 24) }
  
  int snd_ice1712_gpio_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
  int snd_ice1712_gpio_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
  
  /*
   * set gpio direction, write mask and data
   */
  static inline void snd_ice1712_gpio_write_bits(struct snd_ice1712 *ice,
  					       unsigned int mask, unsigned int bits)
  {
  	unsigned val;
  
  	ice->gpio.direction |= mask;
  	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
  	val = snd_ice1712_gpio_read(ice);
  	val &= ~mask;
  	val |= mask & bits;
  	snd_ice1712_gpio_write(ice, val);
  }
  
  static inline int snd_ice1712_gpio_read_bits(struct snd_ice1712 *ice,
  					      unsigned int mask)
  {
  	ice->gpio.direction &= ~mask;
  	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
  	return  snd_ice1712_gpio_read(ice) & mask;
  }
  
  /* route access functions */
  int snd_ice1724_get_route_val(struct snd_ice1712 *ice, int shift);
  int snd_ice1724_put_route_val(struct snd_ice1712 *ice, unsigned int val,
  								int shift);
  
  int snd_ice1712_spdif_build_controls(struct snd_ice1712 *ice);
  
  int snd_ice1712_akm4xxx_init(struct snd_akm4xxx *ak,
  			     const struct snd_akm4xxx *template,
  			     const struct snd_ak4xxx_private *priv,
  			     struct snd_ice1712 *ice);
  void snd_ice1712_akm4xxx_free(struct snd_ice1712 *ice);
  int snd_ice1712_akm4xxx_build_controls(struct snd_ice1712 *ice);
  
  int snd_ice1712_init_cs8427(struct snd_ice1712 *ice, int addr);
  
  static inline void snd_ice1712_write(struct snd_ice1712 *ice, u8 addr, u8 data)
  {
  	outb(addr, ICEREG(ice, INDEX));
  	outb(data, ICEREG(ice, DATA));
  }
  
  static inline u8 snd_ice1712_read(struct snd_ice1712 *ice, u8 addr)
  {
  	outb(addr, ICEREG(ice, INDEX));
  	return inb(ICEREG(ice, DATA));
  }
  
  
  /*
   * entry pointer
   */
  
  struct snd_ice1712_card_info {
  	unsigned int subvendor;
  	char *name;
  	char *model;
  	char *driver;
  	int (*chip_init)(struct snd_ice1712 *);
  	int (*build_controls)(struct snd_ice1712 *);
  	unsigned int no_mpu401:1;
  	unsigned int mpu401_1_info_flags;
  	unsigned int mpu401_2_info_flags;
  	const char *mpu401_1_name;
  	const char *mpu401_2_name;
  	const unsigned int eeprom_size;
  	const unsigned char *eeprom_data;
  };
  
  
  #endif /* __SOUND_ICE1712_H */
  