path: root/sound/pci/ice1712/prodigy_hifi.c

/*
 *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
 *
 *   Lowlevel functions for Audiotrak Prodigy 7.1 Hifi
 *   based on pontis.c
 *
 *      Copyright (c) 2007 Julian Scheel <julian@jusst.de>
 *      Copyright (c) 2007 allank
 *      Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *   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 <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mutex.h>

#include <sound/core.h>
#include <sound/info.h>
#include <sound/tlv.h>

#include "ice1712.h"
#include "envy24ht.h"
#include "prodigy_hifi.h"

struct prodigy_hifi_spec {
	unsigned short master[2];
	unsigned short vol[8];
};

/* I2C addresses */
#define WM_DEV		0x34

/* WM8776 registers */
#define WM_HP_ATTEN_L		0x00	/* headphone left attenuation */
#define WM_HP_ATTEN_R		0x01	/* headphone left attenuation */
#define WM_HP_MASTER		0x02	/* headphone master (both channels),
						override LLR */
#define WM_DAC_ATTEN_L		0x03	/* digital left attenuation */
#define WM_DAC_ATTEN_R		0x04
#define WM_DAC_MASTER		0x05
#define WM_PHASE_SWAP		0x06	/* DAC phase swap */
#define WM_DAC_CTRL1		0x07
#define WM_DAC_MUTE		0x08
#define WM_DAC_CTRL2		0x09
#define WM_DAC_INT		0x0a
#define WM_ADC_INT		0x0b
#define WM_MASTER_CTRL		0x0c
#define WM_POWERDOWN		0x0d
#define WM_ADC_ATTEN_L		0x0e
#define WM_ADC_ATTEN_R		0x0f
#define WM_ALC_CTRL1		0x10
#define WM_ALC_CTRL2		0x11
#define WM_ALC_CTRL3		0x12
#define WM_NOISE_GATE		0x13
#define WM_LIMITER		0x14
#define WM_ADC_MUX		0x15
#define WM_OUT_MUX		0x16
#define WM_RESET		0x17

/* Analog Recording Source :- Mic, LineIn, CD/Video, */

/* implement capture source select control for WM8776 */

#define WM_AIN1 "AIN1"
#define WM_AIN2 "AIN2"
#define WM_AIN3 "AIN3"
#define WM_AIN4 "AIN4"
#define WM_AIN5 "AIN5"

/* GPIO pins of envy24ht connected to wm8766 */
#define WM8766_SPI_CLK	 (1<<17) /* CLK, Pin97 on ICE1724 */
#define WM8766_SPI_MD	  (1<<16) /* DATA VT1724 -> WM8766, Pin96 */
#define WM8766_SPI_ML	  (1<<18) /* Latch, Pin98 */

/* WM8766 registers */
#define WM8766_DAC_CTRL	 0x02   /* DAC Control */
#define WM8766_INT_CTRL	 0x03   /* Interface Control */
#define WM8766_DAC_CTRL2	0x09
#define WM8766_DAC_CTRL3	0x0a
#define WM8766_RESET	    0x1f
#define WM8766_LDA1	     0x00
#define WM8766_LDA2	     0x04
#define WM8766_LDA3	     0x06
#define WM8766_RDA1	     0x01
#define WM8766_RDA2	     0x05
#define WM8766_RDA3	     0x07
#define WM8766_MUTE1	    0x0C
#define WM8766_MUTE2	    0x0F


/*
 * Prodigy HD2
 */
#define AK4396_ADDR    0x00
#define AK4396_CSN    (1 << 8)    /* CSN->GPIO8, pin 75 */
#define AK4396_CCLK   (1 << 9)    /* CCLK->GPIO9, pin 76 */
#define AK4396_CDTI   (1 << 10)   /* CDTI->GPIO10, pin 77 */

/* ak4396 registers */
#define AK4396_CTRL1	    0x00
#define AK4396_CTRL2	    0x01
#define AK4396_CTRL3	    0x02
#define AK4396_LCH_ATT	  0x03
#define AK4396_RCH_ATT	  0x04


/*
 * get the current register value of WM codec
 */
static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
{
	reg <<= 1;
	return ((unsigned short)ice->akm[0].images[reg] << 8) |
		ice->akm[0].images[reg + 1];
}

/*
 * set the register value of WM codec and remember it
 */
static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
{
	unsigned short cval;
	cval = (reg << 9) | val;
	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
}

static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
{
	wm_put_nocache(ice, reg, val);
	reg <<= 1;
	ice->akm[0].images[reg] = val >> 8;
	ice->akm[0].images[reg + 1] = val;
}

/*
 * write data in the SPI mode
 */

static void set_gpio_bit(struct snd_ice1712 *ice