[mirror_ubuntu-bionic-kernel.git] / sound / pcmcia / pdaudiocf / pdaudiocf_core.c

/*
 * Driver for Sound Core PDAudioCF soundcard
 *
 * Copyright (c) 2003 by 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/delay.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/info.h>
#include "pdaudiocf.h"
#include <sound/initval.h>

/*
 *
 */
static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
{
	struct snd_pdacf *chip = private_data;
	unsigned long timeout;
	unsigned long flags;
	unsigned char res;

	spin_lock_irqsave(&chip->ak4117_lock, flags);
	timeout = 1000;
	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
		udelay(5);
		if (--timeout == 0) {
			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
			snd_printk(KERN_ERR "AK4117 ready timeout (read)\n");
			return 0;
		}
	}
	pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
	timeout = 1000;
	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
		udelay(5);
		if (--timeout == 0) {
			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
			snd_printk(KERN_ERR "AK4117 read timeout (read2)\n");
			return 0;
		}
	}
	res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	return res;
}

static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
{
	struct snd_pdacf *chip = private_data;
	unsigned long timeout;
	unsigned long flags;

	spin_lock_irqsave(&chip->ak4117_lock, flags);
	timeout = 1000;
	while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
		udelay(5);
		if (--timeout == 0) {
			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
			snd_printk(KERN_ERR "AK4117 ready timeout (write)\n");
			return;
		}
	}
	outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
}

#if 0
void pdacf_dump(struct snd_pdacf *chip)
{
	printk(KERN_DEBUG "PDAUDIOCF DUMP (0x%lx):\n", chip->port);
	printk(KERN_DEBUG "WPD         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_WDP));
	printk(KERN_DEBUG "RDP         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_RDP));
	printk(KERN_DEBUG "TCR         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_TCR));
	printk(KERN_DEBUG "SCR         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_SCR));
	printk(KERN_DEBUG "ISR         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_ISR));
	printk(KERN_DEBUG "IER         : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_IER));
	printk(KERN_DEBUG "AK_IFR      : 0x%x\n",
	       inw(chip->port + PDAUDIOCF_REG_AK_IFR));
}
#endif

static int pdacf_reset(struct snd_pdacf *chip, int powerdown)
{
	u16 val;
	
	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	val |= PDAUDIOCF_PDN;
	val &= ~PDAUDIOCF_RECORD;		/* for sure */
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	udelay(5);
	val |= PDAUDIOCF_RST;
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	udelay(200);
	val &= ~PDAUDIOCF_RST;
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	udelay(5);
	if (!powerdown) {
		val &= ~PDAUDIOCF_PDN;
		pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
		udelay(200);
	}
	return 0;
}

void pdacf_reinit(struct snd_pdacf *chip, int resume)
{
	pdacf_reset(chip, 0);
	if (resume)
		pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr);
	snd_ak4117_reinit(chip->ak4117);
	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]);
	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]);
}

static void pdacf_proc_read(struct snd_info_entry * entry,
                            struct snd_info_buffer *buffer)
{
	struct snd_pdacf *chip = entry->private_data;
	u16 tmp;

	snd_iprintf(buffer, "PDAudioCF\n\n");
	tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	snd_iprintf(buffer, "FPGA revision      : 0x%x\n", PDAUDIOCF_FPGAREV(tmp));
	                                   
}

static void pdacf_proc_init(struct snd_pdacf *chip)
{
	struct snd_info_entry *entry;

	if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry))
		snd_info_set_text_ops(entry, chip, pdacf_proc_read);
}

struct snd_pdacf *snd_pdacf_create(struct snd_card *card)
{
	struct snd_pdacf *chip;

	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
	if (chip == NULL)
		return NULL;
	chip->card = card;
	mutex_init(&chip->reg_lock);
	spin_lock_init(&chip->ak4117_lock);
	card->private_data = chip;

	pdacf_proc_init(chip);
	return chip;
}

static void snd_pdacf_ak4117_change(struct ak4117 *ak4117, unsigned char c0, unsigned char c1)
{
	struct snd_pdacf *chip = ak4117->change_callback_private;
	u16 val;

	if (!(c0 & AK4117_UNLCK))
		return;
	mutex_lock(&chip->reg_lock);
	val = chip->regmap[PDAUDIOCF_REG_SCR>>1];
	if (ak4117->rcs0 & AK4117_UNLCK)
		val |= PDAUDIOCF_BLUE_LED_OFF;
	else
		val &= ~PDAUDIOCF_BLUE_LED_OFF;
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	mutex_unlock(&chip->reg_lock);
}

int snd_pdacf_ak4117_create(struct snd_pdacf *chip)
{
	int err;
	u16 val;
	/* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */
	/* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */
	/* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */
	/* high-rate sources */
	static unsigned char pgm[5] = {
		AK4117_XTL_24_576M | AK4117_EXCT,				/* AK4117_REG_PWRDN */
		AK4117_CM_PLL_XTAL | AK4117_PKCS_128fs | AK4117_XCKS_128fs,	/* AK4117_REQ_CLOCK */
		AK4117_EFH_1024LRCLK | AK4117_DIF_24R | AK4117_IPS,		/* AK4117_REG_IO */
		0xff,								/* AK4117_REG_INT0_MASK */
		AK4117_MAUTO | AK4117_MAUD | AK4117_MULK | AK4117_MPAR | AK4117_MV, /* AK4117_REG_INT1_MASK */
	};

	err = pdacf_reset(chip, 0);
	if (err < 0)
		return err;
	err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117);
	if (err < 0)
		return err;

	val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR);
#if 1 /* normal operation */
	val &= ~(PDAUDIOCF_ELIMAKMBIT|PDAUDIOCF_TESTDATASEL);
#else /* debug */
	val |= PDAUDIOCF_ELIMAKMBIT;
	val &= ~PDAUDIOCF_TESTDATASEL;
#endif
	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val);
	
	/* setup the FPGA to match AK4117 setup */
	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	val &= ~(PDAUDIOCF_CLKDIV0 | PDAUDIOCF_CLKDIV1);		/* use 24.576Mhz clock */
	val &= ~(PDAUDIOCF_RED_LED_OFF|PDAUDIOCF_BLUE_LED_OFF);
	val |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1;			/* 24-bit data */
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);

	/* setup LEDs and IRQ */
	val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
	val &= ~(PDAUDIOCF_IRQLVLEN0 | PDAUDIOCF_IRQLVLEN1);
	val &= ~(PDAUDIOCF_BLUEDUTY0 | PDAUDIOCF_REDDUTY0 | PDAUDIOCF_REDDUTY1);
	val |= PDAUDIOCF_BLUEDUTY1 | PDAUDIOCF_HALFRATE;
	val |= PDAUDIOCF_IRQOVREN | PDAUDIOCF_IRQAKMEN;
	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);

	chip->ak4117->change_callback_private = chip;
	chip->ak4117->change_callback = snd_pdacf_ak4117_change;

	/* update LED status */
	snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0);

	return 0;
}

void snd_pdacf_powerdown(struct snd_pdacf *chip)
{
	u16 val;

	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	chip->suspend_reg_scr = val;
	val |= PDAUDIOCF_RED_LED_OFF | PDAUDIOCF_BLUE_LED_OFF;
	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
	val = inw(chip->port + PDAUDIOCF_REG_IER);
	val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
	outw(val, chip->port + PDAUDIOCF_REG_IER);
	pdacf_reset(chip, 1);
}

#ifdef CONFIG_PM

int snd_pdacf_suspend(struct snd_pdacf *chip)
{
	u16 val;
	
	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
	snd_pcm_suspend_all(chip->pcm);
	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
	val = inw(chip->port + PDAUDIOCF_REG_IER);
	val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
	outw(val, chip->port + PDAUDIOCF_REG_IER);
	chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED;	/* ignore interrupts from now */
	snd_pdacf_powerdown(chip);
	return 0;
}

static inline int check_signal(struct snd_pdacf *chip)
{
	return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
}

int snd_pdacf_resume(struct snd_pdacf *chip)
{
	int timeout = 40;

	pdacf_reinit(chip, 1);
	/* wait for AK4117's PLL */
	while (timeout-- > 0 &&
	       (snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip)))
		mdelay(1);
	chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED;
	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
	return 0;
}
#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Driver for Sound Core PDAudioCF soundcard
	3	*
c1017a4c	4	* Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
1da177e4 LT	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
	20
1da177e4	21	#include <linux/delay.h>
5a0e3ad6	22	#include <linux/slab.h>
1da177e4 LT	23	#include <sound/core.h>
	24	#include <sound/info.h>
	25	#include "pdaudiocf.h"
	26	#include <sound/initval.h>
	27
	28	/*
	29	*
	30	*/
	31	static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
	32	{
db131548	33	struct snd_pdacf *chip = private_data;
1da177e4 LT	34	unsigned long timeout;
	35	unsigned long flags;
	36	unsigned char res;
	37
	38	spin_lock_irqsave(&chip->ak4117_lock, flags);
	39	timeout = 1000;
	40	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
	41	udelay(5);
	42	if (--timeout == 0) {
	43	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	44	snd_printk(KERN_ERR "AK4117 ready timeout (read)\n");
	45	return 0;
	46	}
	47	}
	48	pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
	49	timeout = 1000;
	50	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
	51	udelay(5);
	52	if (--timeout == 0) {
	53	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	54	snd_printk(KERN_ERR "AK4117 read timeout (read2)\n");
	55	return 0;
	56	}
	57	}
	58	res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
	59	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	60	return res;
	61	}
	62
	63	static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
	64	{
db131548	65	struct snd_pdacf *chip = private_data;
1da177e4 LT	66	unsigned long timeout;
	67	unsigned long flags;
	68
	69	spin_lock_irqsave(&chip->ak4117_lock, flags);
	70	timeout = 1000;
	71	while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
	72	udelay(5);
	73	if (--timeout == 0) {
	74	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	75	snd_printk(KERN_ERR "AK4117 ready timeout (write)\n");
	76	return;
	77	}
	78	}
	79	outw((u16)reg << 8 \| val \| (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
	80	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
	81	}
	82
	83	#if 0
db131548	84	void pdacf_dump(struct snd_pdacf *chip)
1da177e4	85	{
2ebfb8ee TI	86	printk(KERN_DEBUG "PDAUDIOCF DUMP (0x%lx):\n", chip->port);
	87	printk(KERN_DEBUG "WPD : 0x%x\n",
	88	inw(chip->port + PDAUDIOCF_REG_WDP));
	89	printk(KERN_DEBUG "RDP : 0x%x\n",
	90	inw(chip->port + PDAUDIOCF_REG_RDP));
	91	printk(KERN_DEBUG "TCR : 0x%x\n",
	92	inw(chip->port + PDAUDIOCF_REG_TCR));
	93	printk(KERN_DEBUG "SCR : 0x%x\n",
	94	inw(chip->port + PDAUDIOCF_REG_SCR));
	95	printk(KERN_DEBUG "ISR : 0x%x\n",
	96	inw(chip->port + PDAUDIOCF_REG_ISR));
	97	printk(KERN_DEBUG "IER : 0x%x\n",
	98	inw(chip->port + PDAUDIOCF_REG_IER));
	99	printk(KERN_DEBUG "AK_IFR : 0x%x\n",
	100	inw(chip->port + PDAUDIOCF_REG_AK_IFR));
1da177e4 LT	101	}
	102	#endif
	103
db131548	104	static int pdacf_reset(struct snd_pdacf *chip, int powerdown)
1da177e4 LT	105	{
	106	u16 val;
	107
	108	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	109	val \|= PDAUDIOCF_PDN;
	110	val &= ~PDAUDIOCF_RECORD; /* for sure */
	111	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	112	udelay(5);
	113	val \|= PDAUDIOCF_RST;
	114	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	115	udelay(200);
	116	val &= ~PDAUDIOCF_RST;
	117	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	118	udelay(5);
	119	if (!powerdown) {
	120	val &= ~PDAUDIOCF_PDN;
	121	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	122	udelay(200);
	123	}
	124	return 0;
	125	}
	126
db131548	127	void pdacf_reinit(struct snd_pdacf *chip, int resume)
1da177e4 LT	128	{
	129	pdacf_reset(chip, 0);
	130	if (resume)
	131	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr);
	132	snd_ak4117_reinit(chip->ak4117);
	133	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]);
	134	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]);
	135	}
	136
db131548 TI	137	static void pdacf_proc_read(struct snd_info_entry * entry,
db131548 TI	138	struct snd_info_buffer *buffer)
1da177e4	139	{
db131548	140	struct snd_pdacf *chip = entry->private_data;
1da177e4 LT	141	u16 tmp;
	142
	143	snd_iprintf(buffer, "PDAudioCF\n\n");
	144	tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	145	snd_iprintf(buffer, "FPGA revision : 0x%x\n", PDAUDIOCF_FPGAREV(tmp));
	146
	147	}
	148
db131548	149	static void pdacf_proc_init(struct snd_pdacf *chip)
1da177e4	150	{
db131548	151	struct snd_info_entry *entry;
1da177e4 LT	152
1da177e4 LT	153	if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry))
bf850204	154	snd_info_set_text_ops(entry, chip, pdacf_proc_read);
1da177e4 LT	155	}
1da177e4 LT	156
db131548	157	struct snd_pdacf snd_pdacf_create(struct snd_card card)
1da177e4	158	{
db131548	159	struct snd_pdacf *chip;
1da177e4	160
561b220a	161	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1da177e4 LT	162	if (chip == NULL)
	163	return NULL;
	164	chip->card = card;
3b73cfe5	165	mutex_init(&chip->reg_lock);
1da177e4	166	spin_lock_init(&chip->ak4117_lock);
1da177e4 LT	167	card->private_data = chip;
	168
	169	pdacf_proc_init(chip);
	170	return chip;
	171	}
	172
db131548	173	static void snd_pdacf_ak4117_change(struct ak4117 *ak4117, unsigned char c0, unsigned char c1)
1da177e4	174	{
db131548	175	struct snd_pdacf *chip = ak4117->change_callback_private;
1da177e4 LT	176	u16 val;
	177
	178	if (!(c0 & AK4117_UNLCK))
	179	return;
3b73cfe5	180	mutex_lock(&chip->reg_lock);
1da177e4 LT	181	val = chip->regmap[PDAUDIOCF_REG_SCR>>1];
	182	if (ak4117->rcs0 & AK4117_UNLCK)
	183	val \|= PDAUDIOCF_BLUE_LED_OFF;
	184	else
	185	val &= ~PDAUDIOCF_BLUE_LED_OFF;
	186	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
3b73cfe5	187	mutex_unlock(&chip->reg_lock);
1da177e4 LT	188	}
1da177e4 LT	189
db131548	190	int snd_pdacf_ak4117_create(struct snd_pdacf *chip)
1da177e4 LT	191	{
	192	int err;
	193	u16 val;
	194	/* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */
	195	/* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */
	196	/* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */
	197	/* high-rate sources */
	198	static unsigned char pgm[5] = {
	199	AK4117_XTL_24_576M \| AK4117_EXCT, /* AK4117_REG_PWRDN */
	200	AK4117_CM_PLL_XTAL \| AK4117_PKCS_128fs \| AK4117_XCKS_128fs, /* AK4117_REQ_CLOCK */
	201	AK4117_EFH_1024LRCLK \| AK4117_DIF_24R \| AK4117_IPS, /* AK4117_REG_IO */
	202	0xff, /* AK4117_REG_INT0_MASK */
	203	AK4117_MAUTO \| AK4117_MAUD \| AK4117_MULK \| AK4117_MPAR \| AK4117_MV, /* AK4117_REG_INT1_MASK */
	204	};
	205
	206	err = pdacf_reset(chip, 0);
	207	if (err < 0)
	208	return err;
	209	err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117);
	210	if (err < 0)
	211	return err;
	212
	213	val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR);
	214	#if 1 /* normal operation */
	215	val &= ~(PDAUDIOCF_ELIMAKMBIT\|PDAUDIOCF_TESTDATASEL);
	216	#else /* debug */
	217	val \|= PDAUDIOCF_ELIMAKMBIT;
	218	val &= ~PDAUDIOCF_TESTDATASEL;
	219	#endif
	220	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val);
	221
	222	/* setup the FPGA to match AK4117 setup */
	223	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	224	val &= ~(PDAUDIOCF_CLKDIV0 \| PDAUDIOCF_CLKDIV1); /* use 24.576Mhz clock */
	225	val &= ~(PDAUDIOCF_RED_LED_OFF\|PDAUDIOCF_BLUE_LED_OFF);
	226	val \|= PDAUDIOCF_DATAFMT0 \| PDAUDIOCF_DATAFMT1; /* 24-bit data */
	227	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	228
	229	/* setup LEDs and IRQ */
	230	val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
	231	val &= ~(PDAUDIOCF_IRQLVLEN0 \| PDAUDIOCF_IRQLVLEN1);
	232	val &= ~(PDAUDIOCF_BLUEDUTY0 \| PDAUDIOCF_REDDUTY0 \| PDAUDIOCF_REDDUTY1);
	233	val \|= PDAUDIOCF_BLUEDUTY1 \| PDAUDIOCF_HALFRATE;
	234	val \|= PDAUDIOCF_IRQOVREN \| PDAUDIOCF_IRQAKMEN;
	235	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
	236
	237	chip->ak4117->change_callback_private = chip;
	238	chip->ak4117->change_callback = snd_pdacf_ak4117_change;
	239
	240	/* update LED status */
	241	snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0);
	242
	243	return 0;
	244	}
	245
db131548	246	void snd_pdacf_powerdown(struct snd_pdacf *chip)
1da177e4 LT	247	{
	248	u16 val;
	249
	250	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
	251	chip->suspend_reg_scr = val;
	252	val \|= PDAUDIOCF_RED_LED_OFF \| PDAUDIOCF_BLUE_LED_OFF;
	253	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
	254	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
	255	val = inw(chip->port + PDAUDIOCF_REG_IER);
	256	val &= ~(PDAUDIOCF_IRQOVREN\|PDAUDIOCF_IRQAKMEN\|PDAUDIOCF_IRQLVLEN0\|PDAUDIOCF_IRQLVLEN1);
	257	outw(val, chip->port + PDAUDIOCF_REG_IER);
	258	pdacf_reset(chip, 1);
	259	}
	260
	261	#ifdef CONFIG_PM
	262
2cb1331d	263	int snd_pdacf_suspend(struct snd_pdacf *chip)
1da177e4	264	{
1da177e4 LT	265	u16 val;
1da177e4 LT	266
e4f163d9	267	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1da177e4 LT	268	snd_pcm_suspend_all(chip->pcm);
	269	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
	270	val = inw(chip->port + PDAUDIOCF_REG_IER);
	271	val &= ~(PDAUDIOCF_IRQOVREN\|PDAUDIOCF_IRQAKMEN\|PDAUDIOCF_IRQLVLEN0\|PDAUDIOCF_IRQLVLEN1);
	272	outw(val, chip->port + PDAUDIOCF_REG_IER);
	273	chip->chip_status \|= PDAUDIOCF_STAT_IS_SUSPENDED; /* ignore interrupts from now */
	274	snd_pdacf_powerdown(chip);
	275	return 0;
	276	}
	277
db131548	278	static inline int check_signal(struct snd_pdacf *chip)
1da177e4 LT	279	{
	280	return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
	281	}
	282
e4f163d9	283	int snd_pdacf_resume(struct snd_pdacf *chip)
1da177e4	284	{
1da177e4 LT	285	int timeout = 40;
	286
	287	pdacf_reinit(chip, 1);
	288	/* wait for AK4117's PLL */
	289	while (timeout-- > 0 &&
	290	(snd_ak4117_external_rate(chip->ak4117) <= 0 \|\| !check_signal(chip)))
	291	mdelay(1);
	292	chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED;
e4f163d9	293	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1da177e4 LT	294	return 0;
	295	}
	296	#endif