Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 538 insertions, 0 deletions

diff --git a/kernel/sound/pci/ice1712/ice1712.h b/kernel/sound/pci/ice1712/ice1712.h
new file mode 100644
index 000000000..58f8f2ae7
--- /dev/null
+++ b/kernel/sound/pci/ice1712/ice1712.h
@@ -0,0 +1,538 @@
+#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 <linux/io.h>
+#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	/* soft reset whole chip */
+#define   ICE1712_SERR_ASSERT_DS_DMA	0x40    /* disabled SERR# assertion for the DS DMA Ch-C irq otherwise enabled */
+#define   ICE1712_DOS_VOL		0x10    /* DOS WT/FM volume control */
+#define   ICE1712_SERR_LEVEL		0x08	/* SERR# level otherwise edge */
+#define   ICE1712_SERR_ASSERT_SB	0x02	/* disabled SERR# assertion for SB irq otherwise enabled */
+#define   ICE1712_NATIVE		0x01	/* native mode otherwise SB */
+#define ICE1712_REG_IRQMASK		0x01	/* byte */
+#define   ICE1712_IRQ_MPU1		0x80	/* MIDI irq mask */
+#define   ICE1712_IRQ_TIMER		0x40	/* Timer mask */
+#define   ICE1712_IRQ_MPU2		0x20	/* Secondary MIDI irq mask */
+#define   ICE1712_IRQ_PROPCM		0x10	/* professional multi-track */
+#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_card_info;
+
+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;
+	struct snd_ice1712_card_info *card_info;
+
+	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);
+	const char * const *ext_clock_names;
+	int ext_clock_count;
+	void (*pro_open)(struct snd_ice1712 *, struct snd_pcm_substream *);
+#ifdef CONFIG_PM_SLEEP
+	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;
+	const char *name;
+	const char *model;
+	const char *driver;
+	int (*chip_init)(struct snd_ice1712 *);
+	void (*chip_exit)(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 */