Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2392 insertions, 0 deletions

diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
new file mode 100644
index 000000000..f629b3956
--- /dev/null
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -0,0 +1,2392 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *  Routines for control of YMF724/740/744/754 chips
+ */
+
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/info.h>
+#include <sound/tlv.h>
+#include "ymfpci.h"
+#include <sound/asoundef.h>
+#include <sound/mpu401.h>
+
+#include <asm/byteorder.h>
+
+/*
+ *  common I/O routines
+ */
+
+static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip);
+
+static inline u8 snd_ymfpci_readb(struct snd_ymfpci *chip, u32 offset)
+{
+	return readb(chip->reg_area_virt + offset);
+}
+
+static inline void snd_ymfpci_writeb(struct snd_ymfpci *chip, u32 offset, u8 val)
+{
+	writeb(val, chip->reg_area_virt + offset);
+}
+
+static inline u16 snd_ymfpci_readw(struct snd_ymfpci *chip, u32 offset)
+{
+	return readw(chip->reg_area_virt + offset);
+}
+
+static inline void snd_ymfpci_writew(struct snd_ymfpci *chip, u32 offset, u16 val)
+{
+	writew(val, chip->reg_area_virt + offset);
+}
+
+static inline u32 snd_ymfpci_readl(struct snd_ymfpci *chip, u32 offset)
+{
+	return readl(chip->reg_area_virt + offset);
+}
+
+static inline void snd_ymfpci_writel(struct snd_ymfpci *chip, u32 offset, u32 val)
+{
+	writel(val, chip->reg_area_virt + offset);
+}
+
+static int snd_ymfpci_codec_ready(struct snd_ymfpci *chip, int secondary)
+{
+	unsigned long end_time;
+	u32 reg = secondary ? YDSXGR_SECSTATUSADR : YDSXGR_PRISTATUSADR;
+	
+	end_time = jiffies + msecs_to_jiffies(750);
+	do {
+		if ((snd_ymfpci_readw(chip, reg) & 0x8000) == 0)
+			return 0;
+		schedule_timeout_uninterruptible(1);
+	} while (time_before(jiffies, end_time));
+	dev_err(chip->card->dev,
+		"codec_ready: codec %i is not ready [0x%x]\n",
+		secondary, snd_ymfpci_readw(chip, reg));
+	return -EBUSY;
+}
+
+static void snd_ymfpci_codec_write(struct snd_ac97 *ac97, u16 reg, u16 val)
+{
+	struct snd_ymfpci *chip = ac97->private_data;
+	u32 cmd;
+	
+	snd_ymfpci_codec_ready(chip, 0);
+	cmd = ((YDSXG_AC97WRITECMD | reg) << 16) | val;
+	snd_ymfpci_writel(chip, YDSXGR_AC97CMDDATA, cmd);
+}
+
+static u16 snd_ymfpci_codec_read(struct snd_ac97 *ac97, u16 reg)
+{
+	struct snd_ymfpci *chip = ac97->private_data;
+
+	if (snd_ymfpci_codec_ready(chip, 0))
+		return ~0;
+	snd_ymfpci_writew(chip, YDSXGR_AC97CMDADR, YDSXG_AC97READCMD | reg);
+	if (snd_ymfpci_codec_ready(chip, 0))
+		return ~0;
+	if (chip->device_id == PCI_DEVICE_ID_YAMAHA_744 && chip->rev < 2) {
+		int i;
+		for (i = 0; i < 600; i++)
+			snd_ymfpci_readw(chip, YDSXGR_PRISTATUSDATA);
+	}
+	return snd_ymfpci_readw(chip, YDSXGR_PRISTATUSDATA);
+}
+
+/*
+ *  Misc routines
+ */
+
+static u32 snd_ymfpci_calc_delta(u32 rate)
+{
+	switch (rate) {
+	case 8000:	return 0x02aaab00;
+	case 11025:	return 0x03accd00;
+	case 16000:	return 0x05555500;
+	case 22050:	return 0x07599a00;
+	case 32000:	return 0x0aaaab00;
+	case 44100:	return 0x0eb33300;
+	default:	return ((rate << 16) / 375) << 5;
+	}
+}
+
+static const u32 def_rate[8] = {
+	100, 2000, 8000, 11025, 16000, 22050, 32000, 48000
+};
+
+static u32 snd_ymfpci_calc_lpfK(u32 rate)
+{
+	u32 i;
+	static const u32 val[8] = {
+		0x00570000, 0x06AA0000, 0x18B20000, 0x20930000,
+		0x2B9A0000, 0x35A10000, 0x3EAA0000, 0x40000000
+	};
+	
+	if (rate == 44100)
+		return 0x40000000;	/* FIXME: What's the right value? */
+	for (i = 0; i < 8; i++)
+		if (rate <= def_rate[i])
+			return val[i];
+	return val[0];
+}
+
+static u32 snd_ymfpci_calc_lpfQ(u32 rate)
+{
+	u32 i;
+	static const u32 val[8] = {
+		0x35280000, 0x34A70000, 0x32020000, 0x31770000,
+		0x31390000, 0x31C90000, 0x33D00000, 0x40000000
+	};
+	
+	if (rate == 44100)
+		return 0x370A0000;
+	for (i = 0; i < 8; i++)
+		if (rate <= def_rate[i])
+			return val[i];
+	return val[0];
+}
+
+/*
+ *  Hardware start management
+ */
+
+static void snd_ymfpci_hw_start(struct snd_ymfpci *chip)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->start_count++ > 0)
+		goto __end;
+	snd_ymfpci_writel(chip, YDSXGR_MODE,
+			  snd_ymfpci_readl(chip, YDSXGR_MODE) | 3);
+	chip->active_bank = snd_ymfpci_readl(chip, YDSXGR_CTRLSELECT) & 1;
+      __end:
+      	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip)
+{
+	unsigned long flags;
+	long timeout = 1000;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (--chip->start_count > 0)
+		goto __end;
+	snd_ymfpci_writel(chip, YDSXGR_MODE,
+			  snd_ymfpci_readl(chip, YDSXGR_MODE) & ~3);
+	while (timeout-- > 0) {
+		if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0)
+			break;
+	}
+	if (atomic_read(&chip->interrupt_sleep_count)) {
+		atomic_set(&chip->interrupt_sleep_count, 0);
+		wake_up(&chip->interrupt_sleep);
+	}
+      __end:
+      	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+/*
+ *  Playback voice management
+ */
+
+static int voice_alloc(struct snd_ymfpci *chip,
+		       enum snd_ymfpci_voice_type type, int pair,
+		       struct snd_ymfpci_voice **rvoice)
+{
+	struct snd_ymfpci_voice *voice, *voice2;
+	int idx;
+	
+	*rvoice = NULL;
+	for (idx = 0; idx < YDSXG_PLAYBACK_VOICES; idx += pair ? 2 : 1) {
+		voice = &chip->voices[idx];
+		voice2 = pair ? &chip->voices[idx+1] : NULL;
+		if (voice->use || (voice2 && voice2->use))
+			continue;
+		voice->use = 1;
+		if (voice2)
+			voice2->use = 1;
+		switch (type) {
+		case YMFPCI_PCM:
+			voice->pcm = 1;
+			if (voice2)
+				voice2->pcm = 1;
+			break;
+		case YMFPCI_SYNTH:
+			voice->synth = 1;
+			break;
+		case YMFPCI_MIDI:
+			voice->midi = 1;
+			break;
+		}
+		snd_ymfpci_hw_start(chip);
+		if (voice2)
+			snd_ymfpci_hw_start(chip);
+		*rvoice = voice;
+		return 0;
+	}
+	return -ENOMEM;
+}
+
+static int snd_ymfpci_voice_alloc(struct snd_ymfpci *chip,
+				  enum snd_ymfpci_voice_type type, int pair,
+				  struct snd_ymfpci_voice **rvoice)
+{
+	unsigned long flags;
+	int result;
+	
+	if (snd_BUG_ON(!rvoice))
+		return -EINVAL;
+	if (snd_BUG_ON(pair && type != YMFPCI_PCM))
+		return -EINVAL;
+	
+	spin_lock_irqsave(&chip->voice_lock, flags);
+	for (;;) {
+		result = voice_alloc(chip, type, pair, rvoice);
+		if (result == 0 || type != YMFPCI_PCM)
+			break;
+		/* TODO: synth/midi voice deallocation */
+		break;
+	}
+	spin_unlock_irqrestore(&chip->voice_lock, flags);	
+	return result;		
+}
+
+static int snd_ymfpci_voice_free(struct snd_ymfpci *chip, struct snd_ymfpci_voice *pvoice)
+{
+	unsigned long flags;
+	
+	if (snd_BUG_ON(!pvoice))
+		return -EINVAL;
+	snd_ymfpci_hw_stop(chip);
+	spin_lock_irqsave(&chip->voice_lock, flags);
+	if (pvoice->number == chip->src441_used) {
+		chip->src441_used = -1;
+		pvoice->ypcm->use_441_slot = 0;
+	}
+	pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = 0;
+	pvoice->ypcm = NULL;
+	pvoice->interrupt = NULL;
+	spin_unlock_irqrestore(&chip->voice_lock, flags);
+	return 0;
+}
+
+/*
+ *  PCM part
+ */
+
+static void snd_ymfpci_pcm_interrupt(struct snd_ymfpci *chip, struct snd_ymfpci_voice *voice)
+{
+	struct snd_ymfpci_pcm *ypcm;
+	u32 pos, delta;
+	
+	ypcm = voice->ypcm;
+	if (!ypcm)
+		return;
+	if (ypcm->substream == NULL)
+		return;
+	spin_lock(&chip->reg_lock);
+	if (ypcm->running) {
+		pos = le32_to_cpu(voice->bank[chip->active_bank].start);
+		if (pos < ypcm->last_pos)
+			delta = pos + (ypcm->buffer_size - ypcm->last_pos);
+		else
+			delta = pos - ypcm->last_pos;
+		ypcm->period_pos += delta;
+		ypcm->last_pos = pos;
+		if (ypcm->period_pos >= ypcm->period_size) {
+			/*
+			dev_dbg(chip->card->dev,
+			       "done - active_bank = 0x%x, start = 0x%x\n",
+			       chip->active_bank,
+			       voice->bank[chip->active_bank].start);
+			*/
+			ypcm->period_pos %= ypcm->period_size;
+			spin_unlock(&chip->reg_lock);
+			snd_pcm_period_elapsed(ypcm->substream);
+			spin_lock(&chip->reg_lock);
+		}
+
+		if (unlikely(ypcm->update_pcm_vol)) {
+			unsigned int subs = ypcm->substream->number;
+			unsigned int next_bank = 1 - chip->active_bank;
+			struct snd_ymfpci_playback_bank *bank;
+			__le32 volume;
+			
+			bank = &voice->bank[next_bank];
+			volume = cpu_to_le32(chip->pcm_mixer[subs].left << 15);
+			bank->left_gain_end = volume;
+			if (ypcm->output_rear)
+				bank->eff2_gain_end = volume;
+			if (ypcm->voices[1])
+				bank = &ypcm->voices[1]->bank[next_bank];
+			volume = cpu_to_le32(chip->pcm_mixer[subs].right << 15);
+			bank->right_gain_end = volume;
+			if (ypcm->output_rear)
+				bank->eff3_gain_end = volume;
+			ypcm->update_pcm_vol--;
+		}
+	}
+	spin_unlock(&chip->reg_lock);
+}
+
+static void snd_ymfpci_pcm_capture_interrupt(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+	struct snd_ymfpci *chip = ypcm->chip;
+	u32 pos, delta;
+	
+	spin_lock(&chip->reg_lock);
+	if (ypcm->running) {
+		pos = le32_to_cpu(chip->bank_capture[ypcm->capture_bank_number][chip->active_bank]->start) >> ypcm->shift;
+		if (pos < ypcm->last_pos)
+			delta = pos + (ypcm->buffer_size - ypcm->last_pos);
+		else
+			delta = pos - ypcm->last_pos;
+		ypcm->period_pos += delta;
+		ypcm->last_pos = pos;
+		if (ypcm->period_pos >= ypcm->period_size) {
+			ypcm->period_pos %= ypcm->period_size;
+			/*
+			dev_dbg(chip->card->dev,
+			       "done - active_bank = 0x%x, start = 0x%x\n",
+			       chip->active_bank,
+			       voice->bank[chip->active_bank].start);
+			*/
+			spin_unlock(&chip->reg_lock);
+			snd_pcm_period_elapsed(substream);
+			spin_lock(&chip->reg_lock);
+		}
+	}
+	spin_unlock(&chip->reg_lock);
+}
+
+static int snd_ymfpci_playback_trigger(struct snd_pcm_substream *substream,
+				       int cmd)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_ymfpci_pcm *ypcm = substream->runtime->private_data;
+	struct snd_kcontrol *kctl = NULL;
+	int result = 0;
+
+	spin_lock(&chip->reg_lock);
+	if (ypcm->voices[0] == NULL) {
+		result = -EINVAL;
+		goto __unlock;
+	}
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		chip->ctrl_playback[ypcm->voices[0]->number + 1] = cpu_to_le32(ypcm->voices[0]->bank_addr);
+		if (ypcm->voices[1] != NULL && !ypcm->use_441_slot)
+			chip->ctrl_playback[ypcm->voices[1]->number + 1] = cpu_to_le32(ypcm->voices[1]->bank_addr);
+		ypcm->running = 1;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		if (substream->pcm == chip->pcm && !ypcm->use_441_slot) {
+			kctl = chip->pcm_mixer[substream->number].ctl;
+			kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+		}
+		fallthrough;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		chip->ctrl_playback[ypcm->voices[0]->number + 1] = 0;
+		if (ypcm->voices[1] != NULL && !ypcm->use_441_slot)
+			chip->ctrl_playback[ypcm->voices[1]->number + 1] = 0;
+		ypcm->running = 0;
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+      __unlock:
+	spin_unlock(&chip->reg_lock);
+	if (kctl)
+		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id);
+	return result;
+}
+static int snd_ymfpci_capture_trigger(struct snd_pcm_substream *substream,
+				      int cmd)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_ymfpci_pcm *ypcm = substream->runtime->private_data;
+	int result = 0;
+	u32 tmp;
+
+	spin_lock(&chip->reg_lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		tmp = snd_ymfpci_readl(chip, YDSXGR_MAPOFREC) | (1 << ypcm->capture_bank_number);
+		snd_ymfpci_writel(chip, YDSXGR_MAPOFREC, tmp);
+		ypcm->running = 1;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		tmp = snd_ymfpci_readl(chip, YDSXGR_MAPOFREC) & ~(1 << ypcm->capture_bank_number);
+		snd_ymfpci_writel(chip, YDSXGR_MAPOFREC, tmp);
+		ypcm->running = 0;
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+	spin_unlock(&chip->reg_lock);
+	return result;
+}
+
+static int snd_ymfpci_pcm_voice_alloc(struct snd_ymfpci_pcm *ypcm, int voices)
+{
+	int err;
+
+	if (ypcm->voices[1] != NULL && voices < 2) {
+		snd_ymfpci_voice_free(ypcm->chip, ypcm->voices[1]);
+		ypcm->voices[1] = NULL;
+	}
+	if (voices == 1 && ypcm->voices[0] != NULL)
+		return 0;		/* already allocated */
+	if (voices == 2 && ypcm->voices[0] != NULL && ypcm->voices[1] != NULL)
+		return 0;		/* already allocated */
+	if (voices > 1) {
+		if (ypcm->voices[0] != NULL && ypcm->voices[1] == NULL) {
+			snd_ymfpci_voice_free(ypcm->chip, ypcm->voices[0]);
+			ypcm->voices[0] = NULL;
+		}		
+	}
+	err = snd_ymfpci_voice_alloc(ypcm->chip, YMFPCI_PCM, voices > 1, &ypcm->voices[0]);
+	if (err < 0)
+		return err;
+	ypcm->voices[0]->ypcm = ypcm;
+	ypcm->voices[0]->interrupt = snd_ymfpci_pcm_interrupt;
+	if (voices > 1) {
+		ypcm->voices[1] = &ypcm->chip->voices[ypcm->voices[0]->number + 1];
+		ypcm->voices[1]->ypcm = ypcm;
+	}
+	return 0;
+}
+
+static void snd_ymfpci_pcm_init_voice(struct snd_ymfpci_pcm *ypcm, unsigned int voiceidx,
+				      struct snd_pcm_runtime *runtime,
+				      int has_pcm_volume)
+{
+	struct snd_ymfpci_voice *voice = ypcm->voices[voiceidx];
+	u32 format;
+	u32 delta = snd_ymfpci_calc_delta(runtime->rate);
+	u32 lpfQ = snd_ymfpci_calc_lpfQ(runtime->rate);
+	u32 lpfK = snd_ymfpci_calc_lpfK(runtime->rate);
+	struct snd_ymfpci_playback_bank *bank;
+	unsigned int nbank;
+	__le32 vol_left, vol_right;
+	u8 use_left, use_right;
+	unsigned long flags;
+
+	if (snd_BUG_ON(!voice))
+		return;
+	if (runtime->channels == 1) {
+		use_left = 1;
+		use_right = 1;
+	} else {
+		use_left = (voiceidx & 1) == 0;
+		use_right = !use_left;
+	}
+	if (has_pcm_volume) {
+		vol_left = cpu_to_le32(ypcm->chip->pcm_mixer
+				       [ypcm->substream->number].left << 15);
+		vol_right = cpu_to_le32(ypcm->chip->pcm_mixer
+					[ypcm->substream->number].right << 15);
+	} else {
+		vol_left = cpu_to_le32(0x40000000);
+		vol_right = cpu_to_le32(0x40000000);
+	}
+	spin_lock_irqsave(&ypcm->chip->voice_lock, flags);
+	format = runtime->channels == 2 ? 0x00010000 : 0;
+	if (snd_pcm_format_width(runtime->format) == 8)
+		format |= 0x80000000;
+	else if (ypcm->chip->device_id == PCI_DEVICE_ID_YAMAHA_754 &&
+		 runtime->rate == 44100 && runtime->channels == 2 &&
+		 voiceidx == 0 && (ypcm->chip->src441_used == -1 ||
+				   ypcm->chip->src441_used == voice->number)) {
+		ypcm->chip->src441_used = voice->number;
+		ypcm->use_441_slot = 1;
+		format |= 0x10000000;
+	}
+	if (ypcm->chip->src441_used == voice->number &&
+	    (format & 0x10000000) == 0) {
+		ypcm->chip->src441_used = -1;
+		ypcm->use_441_slot = 0;
+	}
+	if (runtime->channels == 2 && (voiceidx & 1) != 0)
+		format |= 1;
+	spin_unlock_irqrestore(&ypcm->chip->voice_lock, flags);
+	for (nbank = 0; nbank < 2; nbank++) {
+		bank = &voice->bank[nbank];
+		memset(bank, 0, sizeof(*bank));
+		bank->format = cpu_to_le32(format);
+		bank->base = cpu_to_le32(runtime->dma_addr);
+		bank->loop_end = cpu_to_le32(ypcm->buffer_size);
+		bank->lpfQ = cpu_to_le32(lpfQ);
+		bank->delta =
+		bank->delta_end = cpu_to_le32(delta);
+		bank->lpfK =
+		bank->lpfK_end = cpu_to_le32(lpfK);
+		bank->eg_gain =
+		bank->eg_gain_end = cpu_to_le32(0x40000000);
+
+		if (ypcm->output_front) {
+			if (use_left) {
+				bank->left_gain =
+				bank->left_gain_end = vol_left;
+			}
+			if (use_right) {
+				bank->right_gain =
+				bank->right_gain_end = vol_right;
+			}
+		}
+		if (ypcm->output_rear) {
+		        if (!ypcm->swap_rear) {
+        			if (use_left) {
+        				bank->eff2_gain =
+        				bank->eff2_gain_end = vol_left;
+        			}
+        			if (use_right) {
+        				bank->eff3_gain =
+        				bank->eff3_gain_end = vol_right;
+        			}
+		        } else {
+        			/* The SPDIF out channels seem to be swapped, so we have
+        			 * to swap them here, too.  The rear analog out channels
+        			 * will be wrong, but otherwise AC3 would not work.
+        			 */
+        			if (use_left) {
+        				bank->eff3_gain =
+        				bank->eff3_gain_end = vol_left;
+        			}
+        			if (use_right) {
+        				bank->eff2_gain =
+        				bank->eff2_gain_end = vol_right;
+        			}
+        		}
+                }
+	}
+}
+
+static int snd_ymfpci_ac3_init(struct snd_ymfpci *chip)
+{
+	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
+				4096, &chip->ac3_tmp_base) < 0)
+		return -ENOMEM;
+
+	chip->bank_effect[3][0]->base =
+	chip->bank_effect[3][1]->base = cpu_to_le32(chip->ac3_tmp_base.addr);
+	chip->bank_effect[3][0]->loop_end =
+	chip->bank_effect[3][1]->loop_end = cpu_to_le32(1024);
+	chip->bank_effect[4][0]->base =
+	chip->bank_effect[4][1]->base = cpu_to_le32(chip->ac3_tmp_base.addr + 2048);
+	chip->bank_effect[4][0]->loop_end =
+	chip->bank_effect[4][1]->loop_end = cpu_to_le32(1024);
+
+	spin_lock_irq(&chip->reg_lock);
+	snd_ymfpci_writel(chip, YDSXGR_MAPOFEFFECT,
+			  snd_ymfpci_readl(chip, YDSXGR_MAPOFEFFECT) | 3 << 3);
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_ymfpci_ac3_done(struct snd_ymfpci *chip)
+{
+	spin_lock_irq(&chip->reg_lock);
+	snd_ymfpci_writel(chip, YDSXGR_MAPOFEFFECT,
+			  snd_ymfpci_readl(chip, YDSXGR_MAPOFEFFECT) & ~(3 << 3));
+	spin_unlock_irq(&chip->reg_lock);
+	// snd_ymfpci_irq_wait(chip);
+	if (chip->ac3_tmp_base.area) {
+		snd_dma_free_pages(&chip->ac3_tmp_base);
+		chip->ac3_tmp_base.area = NULL;
+	}
+	return 0;
+}
+
+static int snd_ymfpci_playback_hw_params(struct snd_pcm_substream *substream,
+					 struct snd_pcm_hw_params *hw_params)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+	int err;
+
+	err = snd_ymfpci_pcm_voice_alloc(ypcm, params_channels(hw_params));
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+static int snd_ymfpci_playback_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	
+	if (runtime->private_data == NULL)
+		return 0;
+	ypcm = runtime->private_data;
+
+	/* wait, until the PCI operations are not finished */
+	snd_ymfpci_irq_wait(chip);
+	if (ypcm->voices[1]) {
+		snd_ymfpci_voice_free(chip, ypcm->voices[1]);
+		ypcm->voices[1] = NULL;
+	}
+	if (ypcm->voices[0]) {
+		snd_ymfpci_voice_free(chip, ypcm->voices[0]);
+		ypcm->voices[0] = NULL;
+	}
+	return 0;
+}
+
+static int snd_ymfpci_playback_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+	struct snd_kcontrol *kctl;
+	unsigned int nvoice;
+
+	ypcm->period_size = runtime->period_size;
+	ypcm->buffer_size = runtime->buffer_size;
+	ypcm->period_pos = 0;
+	ypcm->last_pos = 0;
+	for (nvoice = 0; nvoice < runtime->channels; nvoice++)
+		snd_ymfpci_pcm_init_voice(ypcm, nvoice, runtime,
+					  substream->pcm == chip->pcm);
+
+	if (substream->pcm == chip->pcm && !ypcm->use_441_slot) {
+		kctl = chip->pcm_mixer[substream->number].ctl;
+		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id);
+	}
+	return 0;
+}
+
+static int snd_ymfpci_capture_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+
+	/* wait, until the PCI operations are not finished */
+	snd_ymfpci_irq_wait(chip);
+	return 0;
+}
+
+static int snd_ymfpci_capture_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+	struct snd_ymfpci_capture_bank * bank;
+	int nbank;
+	u32 rate, format;
+
+	ypcm->period_size = runtime->period_size;
+	ypcm->buffer_size = runtime->buffer_size;
+	ypcm->period_pos = 0;
+	ypcm->last_pos = 0;
+	ypcm->shift = 0;
+	rate = ((48000 * 4096) / runtime->rate) - 1;
+	format = 0;
+	if (runtime->channels == 2) {
+		format |= 2;
+		ypcm->shift++;
+	}
+	if (snd_pcm_format_width(runtime->format) == 8)
+		format |= 1;
+	else
+		ypcm->shift++;
+	switch (ypcm->capture_bank_number) {
+	case 0:
+		snd_ymfpci_writel(chip, YDSXGR_RECFORMAT, format);
+		snd_ymfpci_writel(chip, YDSXGR_RECSLOTSR, rate);
+		break;
+	case 1:
+		snd_ymfpci_writel(chip, YDSXGR_ADCFORMAT, format);
+		snd_ymfpci_writel(chip, YDSXGR_ADCSLOTSR, rate);
+		break;
+	}
+	for (nbank = 0; nbank < 2; nbank++) {
+		bank = chip->bank_capture[ypcm->capture_bank_number][nbank];
+		bank->base = cpu_to_le32(runtime->dma_addr);
+		bank->loop_end = cpu_to_le32(ypcm->buffer_size << ypcm->shift);
+		bank->start = 0;
+		bank->num_of_loops = 0;
+	}
+	return 0;
+}
+
+static snd_pcm_uframes_t snd_ymfpci_playback_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+	struct snd_ymfpci_voice *voice = ypcm->voices[0];
+
+	if (!(ypcm->running && voice))
+		return 0;
+	return le32_to_cpu(voice->bank[chip->active_bank].start);
+}
+
+static snd_pcm_uframes_t snd_ymfpci_capture_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+
+	if (!ypcm->running)
+		return 0;
+	return le32_to_cpu(chip->bank_capture[ypcm->capture_bank_number][chip->active_bank]->start) >> ypcm->shift;
+}
+
+static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip)
+{
+	wait_queue_entry_t wait;
+	int loops = 4;
+
+	while (loops-- > 0) {
+		if ((snd_ymfpci_readl(chip, YDSXGR_MODE) & 3) == 0)
+		 	continue;
+		init_waitqueue_entry(&wait, current);
+		add_wait_queue(&chip->interrupt_sleep, &wait);
+		atomic_inc(&chip->interrupt_sleep_count);
+		schedule_timeout_uninterruptible(msecs_to_jiffies(50));
+		remove_wait_queue(&chip->interrupt_sleep, &wait);
+	}
+}
+
+static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
+{
+	struct snd_ymfpci *chip = dev_id;
+	u32 status, nvoice, mode;
+	struct snd_ymfpci_voice *voice;
+
+	status = snd_ymfpci_readl(chip, YDSXGR_STATUS);
+	if (status & 0x80000000) {
+		chip->active_bank = snd_ymfpci_readl(chip, YDSXGR_CTRLSELECT) & 1;
+		spin_lock(&chip->voice_lock);
+		for (nvoice = 0; nvoice < YDSXG_PLAYBACK_VOICES; nvoice++) {
+			voice = &chip->voices[nvoice];
+			if (voice->interrupt)
+				voice->interrupt(chip, voice);
+		}
+		for (nvoice = 0; nvoice < YDSXG_CAPTURE_VOICES; nvoice++) {
+			if (chip->capture_substream[nvoice])
+				snd_ymfpci_pcm_capture_interrupt(chip->capture_substream[nvoice]);
+		}
+#if 0
+		for (nvoice = 0; nvoice < YDSXG_EFFECT_VOICES; nvoice++) {
+			if (chip->effect_substream[nvoice])
+				snd_ymfpci_pcm_effect_interrupt(chip->effect_substream[nvoice]);
+		}
+#endif
+		spin_unlock(&chip->voice_lock);
+		spin_lock(&chip->reg_lock);
+		snd_ymfpci_writel(chip, YDSXGR_STATUS, 0x80000000);
+		mode = snd_ymfpci_readl(chip, YDSXGR_MODE) | 2;
+		snd_ymfpci_writel(chip, YDSXGR_MODE, mode);
+		spin_unlock(&chip->reg_lock);
+
+		if (atomic_read(&chip->interrupt_sleep_count)) {
+			atomic_set(&chip->interrupt_sleep_count, 0);
+			wake_up(&chip->interrupt_sleep);
+		}
+	}
+
+	status = snd_ymfpci_readw(chip, YDSXGR_INTFLAG);
+	if (status & 1) {
+		if (chip->timer)
+			snd_timer_interrupt(chip->timer, chip->timer_ticks);
+	}
+	snd_ymfpci_writew(chip, YDSXGR_INTFLAG, status);
+
+	if (chip->rawmidi)
+		snd_mpu401_uart_interrupt(irq, chip->rawmidi->private_data);
+	return IRQ_HANDLED;
+}
+
+static const struct snd_pcm_hardware snd_ymfpci_playback =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_MMAP_VALID | 
+				 SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_PAUSE |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		8000,
+	.rate_max =		48000,
+	.channels_min =		1,
+	.channels_max =		2,
+	.buffer_bytes_max =	256 * 1024, /* FIXME: enough? */
+	.period_bytes_min =	64,
+	.period_bytes_max =	256 * 1024, /* FIXME: enough? */
+	.periods_min =		3,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+static const struct snd_pcm_hardware snd_ymfpci_capture =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_PAUSE |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		8000,
+	.rate_max =		48000,
+	.channels_min =		1,
+	.channels_max =		2,
+	.buffer_bytes_max =	256 * 1024, /* FIXME: enough? */
+	.period_bytes_min =	64,
+	.period_bytes_max =	256 * 1024, /* FIXME: enough? */
+	.periods_min =		3,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+static void snd_ymfpci_pcm_free_substream(struct snd_pcm_runtime *runtime)
+{
+	kfree(runtime->private_data);
+}
+
+static int snd_ymfpci_playback_open_1(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	int err;
+
+	runtime->hw = snd_ymfpci_playback;
+	/* FIXME? True value is 256/48 = 5.33333 ms */
+	err = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+					   5334, UINT_MAX);
+	if (err < 0)
+		return err;
+	err = snd_pcm_hw_rule_noresample(runtime, 48000);
+	if (err < 0)
+		return err;
+
+	ypcm = kzalloc(sizeof(*ypcm), GFP_KERNEL);
+	if (ypcm == NULL)
+		return -ENOMEM;
+	ypcm->chip = chip;
+	ypcm->type = PLAYBACK_VOICE;
+	ypcm->substream = substream;
+	runtime->private_data = ypcm;
+	runtime->private_free = snd_ymfpci_pcm_free_substream;
+	return 0;
+}
+
+/* call with spinlock held */
+static void ymfpci_open_extension(struct snd_ymfpci *chip)
+{
+	if (! chip->rear_opened) {
+		if (! chip->spdif_opened) /* set AC3 */
+			snd_ymfpci_writel(chip, YDSXGR_MODE,
+					  snd_ymfpci_readl(chip, YDSXGR_MODE) | (1 << 30));
+		/* enable second codec (4CHEN) */
+		snd_ymfpci_writew(chip, YDSXGR_SECCONFIG,
+				  (snd_ymfpci_readw(chip, YDSXGR_SECCONFIG) & ~0x0330) | 0x0010);
+	}
+}
+
+/* call with spinlock held */
+static void ymfpci_close_extension(struct snd_ymfpci *chip)
+{
+	if (! chip->rear_opened) {
+		if (! chip->spdif_opened)
+			snd_ymfpci_writel(chip, YDSXGR_MODE,
+					  snd_ymfpci_readl(chip, YDSXGR_MODE) & ~(1 << 30));
+		snd_ymfpci_writew(chip, YDSXGR_SECCONFIG,
+				  (snd_ymfpci_readw(chip, YDSXGR_SECCONFIG) & ~0x0330) & ~0x0010);
+	}
+}
+
+static int snd_ymfpci_playback_open(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	int err;
+	
+	err = snd_ymfpci_playback_open_1(substream);
+	if (err < 0)
+		return err;
+	ypcm = runtime->private_data;
+	ypcm->output_front = 1;
+	ypcm->output_rear = chip->mode_dup4ch ? 1 : 0;
+	ypcm->swap_rear = 0;
+	spin_lock_irq(&chip->reg_lock);
+	if (ypcm->output_rear) {
+		ymfpci_open_extension(chip);
+		chip->rear_opened++;
+	}
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_ymfpci_playback_spdif_open(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	int err;
+	
+	err = snd_ymfpci_playback_open_1(substream);
+	if (err < 0)
+		return err;
+	ypcm = runtime->private_data;
+	ypcm->output_front = 0;
+	ypcm->output_rear = 1;
+	ypcm->swap_rear = 1;
+	spin_lock_irq(&chip->reg_lock);
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTCTRL,
+			  snd_ymfpci_readw(chip, YDSXGR_SPDIFOUTCTRL) | 2);
+	ymfpci_open_extension(chip);
+	chip->spdif_pcm_bits = chip->spdif_bits;
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTSTATUS, chip->spdif_pcm_bits);
+	chip->spdif_opened++;
+	spin_unlock_irq(&chip->reg_lock);
+
+	chip->spdif_pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+	snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
+		       SNDRV_CTL_EVENT_MASK_INFO, &chip->spdif_pcm_ctl->id);
+	return 0;
+}
+
+static int snd_ymfpci_playback_4ch_open(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	int err;
+	
+	err = snd_ymfpci_playback_open_1(substream);
+	if (err < 0)
+		return err;
+	ypcm = runtime->private_data;
+	ypcm->output_front = 0;
+	ypcm->output_rear = 1;
+	ypcm->swap_rear = 0;
+	spin_lock_irq(&chip->reg_lock);
+	ymfpci_open_extension(chip);
+	chip->rear_opened++;
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_ymfpci_capture_open(struct snd_pcm_substream *substream,
+				   u32 capture_bank_number)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm;
+	int err;
+
+	runtime->hw = snd_ymfpci_capture;
+	/* FIXME? True value is 256/48 = 5.33333 ms */
+	err = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+					   5334, UINT_MAX);
+	if (err < 0)
+		return err;
+	err = snd_pcm_hw_rule_noresample(runtime, 48000);
+	if (err < 0)
+		return err;
+
+	ypcm = kzalloc(sizeof(*ypcm), GFP_KERNEL);
+	if (ypcm == NULL)
+		return -ENOMEM;
+	ypcm->chip = chip;
+	ypcm->type = capture_bank_number + CAPTURE_REC;
+	ypcm->substream = substream;	
+	ypcm->capture_bank_number = capture_bank_number;
+	chip->capture_substream[capture_bank_number] = substream;
+	runtime->private_data = ypcm;
+	runtime->private_free = snd_ymfpci_pcm_free_substream;
+	snd_ymfpci_hw_start(chip);
+	return 0;
+}
+
+static int snd_ymfpci_capture_rec_open(struct snd_pcm_substream *substream)
+{
+	return snd_ymfpci_capture_open(substream, 0);
+}
+
+static int snd_ymfpci_capture_ac97_open(struct snd_pcm_substream *substream)
+{
+	return snd_ymfpci_capture_open(substream, 1);
+}
+
+static int snd_ymfpci_playback_close_1(struct snd_pcm_substream *substream)
+{
+	return 0;
+}
+
+static int snd_ymfpci_playback_close(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_ymfpci_pcm *ypcm = substream->runtime->private_data;
+
+	spin_lock_irq(&chip->reg_lock);
+	if (ypcm->output_rear && chip->rear_opened > 0) {
+		chip->rear_opened--;
+		ymfpci_close_extension(chip);
+	}
+	spin_unlock_irq(&chip->reg_lock);
+	return snd_ymfpci_playback_close_1(substream);
+}
+
+static int snd_ymfpci_playback_spdif_close(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+
+	spin_lock_irq(&chip->reg_lock);
+	chip->spdif_opened = 0;
+	ymfpci_close_extension(chip);
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTCTRL,
+			  snd_ymfpci_readw(chip, YDSXGR_SPDIFOUTCTRL) & ~2);
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTSTATUS, chip->spdif_bits);
+	spin_unlock_irq(&chip->reg_lock);
+	chip->spdif_pcm_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+	snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
+		       SNDRV_CTL_EVENT_MASK_INFO, &chip->spdif_pcm_ctl->id);
+	return snd_ymfpci_playback_close_1(substream);
+}
+
+static int snd_ymfpci_playback_4ch_close(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+
+	spin_lock_irq(&chip->reg_lock);
+	if (chip->rear_opened > 0) {
+		chip->rear_opened--;
+		ymfpci_close_extension(chip);
+	}
+	spin_unlock_irq(&chip->reg_lock);
+	return snd_ymfpci_playback_close_1(substream);
+}
+
+static int snd_ymfpci_capture_close(struct snd_pcm_substream *substream)
+{
+	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
+
+	if (ypcm != NULL) {
+		chip->capture_substream[ypcm->capture_bank_number] = NULL;
+		snd_ymfpci_hw_stop(chip);
+	}
+	return 0;
+}
+
+static const struct snd_pcm_ops snd_ymfpci_playback_ops = {
+	.open =			snd_ymfpci_playback_open,
+	.close =		snd_ymfpci_playback_close,
+	.hw_params =		snd_ymfpci_playback_hw_params,
+	.hw_free =		snd_ymfpci_playback_hw_free,
+	.prepare =		snd_ymfpci_playback_prepare,
+	.trigger =		snd_ymfpci_playback_trigger,
+	.pointer =		snd_ymfpci_playback_pointer,
+};
+
+static const struct snd_pcm_ops snd_ymfpci_capture_rec_ops = {
+	.open =			snd_ymfpci_capture_rec_open,
+	.close =		snd_ymfpci_capture_close,
+	.hw_free =		snd_ymfpci_capture_hw_free,
+	.prepare =		snd_ymfpci_capture_prepare,
+	.trigger =		snd_ymfpci_capture_trigger,
+	.pointer =		snd_ymfpci_capture_pointer,
+};
+
+int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(chip->card, "YMFPCI", device, 32, 1, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ymfpci_playback_ops);
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ymfpci_capture_rec_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "YMFPCI");
+	chip->pcm = pcm;
+
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
+
+	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				     snd_pcm_std_chmaps, 2, 0, NULL);
+}
+
+static const struct snd_pcm_ops snd_ymfpci_capture_ac97_ops = {
+	.open =			snd_ymfpci_capture_ac97_open,
+	.close =		snd_ymfpci_capture_close,
+	.hw_free =		snd_ymfpci_capture_hw_free,
+	.prepare =		snd_ymfpci_capture_prepare,
+	.trigger =		snd_ymfpci_capture_trigger,
+	.pointer =		snd_ymfpci_capture_pointer,
+};
+
+int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(chip->card, "YMFPCI - PCM2", device, 0, 1, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ymfpci_capture_ac97_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	sprintf(pcm->name, "YMFPCI - %s",
+		chip->device_id == PCI_DEVICE_ID_YAMAHA_754 ? "Direct Recording" : "AC'97");
+	chip->pcm2 = pcm;
+
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
+
+	return 0;
+}
+
+static const struct snd_pcm_ops snd_ymfpci_playback_spdif_ops = {
+	.open =			snd_ymfpci_playback_spdif_open,
+	.close =		snd_ymfpci_playback_spdif_close,
+	.hw_params =		snd_ymfpci_playback_hw_params,
+	.hw_free =		snd_ymfpci_playback_hw_free,
+	.prepare =		snd_ymfpci_playback_prepare,
+	.trigger =		snd_ymfpci_playback_trigger,
+	.pointer =		snd_ymfpci_playback_pointer,
+};
+
+int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(chip->card, "YMFPCI - IEC958", device, 1, 0, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ymfpci_playback_spdif_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "YMFPCI - IEC958");
+	chip->pcm_spdif = pcm;
+
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
+
+	return 0;
+}
+
+static const struct snd_pcm_ops snd_ymfpci_playback_4ch_ops = {
+	.open =			snd_ymfpci_playback_4ch_open,
+	.close =		snd_ymfpci_playback_4ch_close,
+	.hw_params =		snd_ymfpci_playback_hw_params,
+	.hw_free =		snd_ymfpci_playback_hw_free,
+	.prepare =		snd_ymfpci_playback_prepare,
+	.trigger =		snd_ymfpci_playback_trigger,
+	.pointer =		snd_ymfpci_playback_pointer,
+};
+
+static const struct snd_pcm_chmap_elem surround_map[] = {
+	{ .channels = 1,
+	  .map = { SNDRV_CHMAP_MONO } },
+	{ .channels = 2,
+	  .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+	{ }
+};
+
+int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(chip->card, "YMFPCI - Rear", device, 1, 0, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ymfpci_playback_4ch_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "YMFPCI - Rear PCM");
+	chip->pcm_4ch = pcm;
+
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
+
+	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				     surround_map, 2, 0, NULL);
+}
+
+static int snd_ymfpci_spdif_default_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ymfpci_spdif_default_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+
+	spin_lock_irq(&chip->reg_lock);
+	ucontrol->value.iec958.status[0] = (chip->spdif_bits >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (chip->spdif_bits >> 8) & 0xff;
+	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000;
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_ymfpci_spdif_default_put(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int change;
+
+	val = ((ucontrol->value.iec958.status[0] & 0x3e) << 0) |
+	      (ucontrol->value.iec958.status[1] << 8);
+	spin_lock_irq(&chip->reg_lock);
+	change = chip->spdif_bits != val;
+	chip->spdif_bits = val;
+	if ((snd_ymfpci_readw(chip, YDSXGR_SPDIFOUTCTRL) & 1) && chip->pcm_spdif == NULL)
+		snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTSTATUS, chip->spdif_bits);
+	spin_unlock_irq(&chip->reg_lock);
+	return change;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_spdif_default =
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+	.info =		snd_ymfpci_spdif_default_info,
+	.get =		snd_ymfpci_spdif_default_get,
+	.put =		snd_ymfpci_spdif_default_put
+};
+
+static int snd_ymfpci_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ymfpci_spdif_mask_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+
+	spin_lock_irq(&chip->reg_lock);
+	ucontrol->value.iec958.status[0] = 0x3e;
+	ucontrol->value.iec958.status[1] = 0xff;
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_spdif_mask =
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
+	.info =		snd_ymfpci_spdif_mask_info,
+	.get =		snd_ymfpci_spdif_mask_get,
+};
+
+static int snd_ymfpci_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ymfpci_spdif_stream_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+
+	spin_lock_irq(&chip->reg_lock);
+	ucontrol->value.iec958.status[0] = (chip->spdif_pcm_bits >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (chip->spdif_pcm_bits >> 8) & 0xff;
+	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000;
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_ymfpci_spdif_stream_put(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int change;
+
+	val = ((ucontrol->value.iec958.status[0] & 0x3e) << 0) |
+	      (ucontrol->value.iec958.status[1] << 8);
+	spin_lock_irq(&chip->reg_lock);
+	change = chip->spdif_pcm_bits != val;
+	chip->spdif_pcm_bits = val;
+	if ((snd_ymfpci_readw(chip, YDSXGR_SPDIFOUTCTRL) & 2))
+		snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTSTATUS, chip->spdif_pcm_bits);
+	spin_unlock_irq(&chip->reg_lock);
+	return change;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_spdif_stream =
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
+	.info =		snd_ymfpci_spdif_stream_info,
+	.get =		snd_ymfpci_spdif_stream_get,
+	.put =		snd_ymfpci_spdif_stream_put
+};
+
+static int snd_ymfpci_drec_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *info)
+{
+	static const char *const texts[3] = {"AC'97", "IEC958", "ZV Port"};
+
+	return snd_ctl_enum_info(info, 1, 3, texts);
+}
+
+static int snd_ymfpci_drec_source_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	u16 reg;
+
+	spin_lock_irq(&chip->reg_lock);
+	reg = snd_ymfpci_readw(chip, YDSXGR_GLOBALCTRL);
+	spin_unlock_irq(&chip->reg_lock);
+	if (!(reg & 0x100))
+		value->value.enumerated.item[0] = 0;
+	else
+		value->value.enumerated.item[0] = 1 + ((reg & 0x200) != 0);
+	return 0;
+}
+
+static int snd_ymfpci_drec_source_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *value)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	u16 reg, old_reg;
+
+	spin_lock_irq(&chip->reg_lock);
+	old_reg = snd_ymfpci_readw(chip, YDSXGR_GLOBALCTRL);
+	if (value->value.enumerated.item[0] == 0)
+		reg = old_reg & ~0x100;
+	else
+		reg = (old_reg & ~0x300) | 0x100 | ((value->value.enumerated.item[0] == 2) << 9);
+	snd_ymfpci_writew(chip, YDSXGR_GLOBALCTRL, reg);
+	spin_unlock_irq(&chip->reg_lock);
+	return reg != old_reg;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_drec_source = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Direct Recording Source",
+	.info =		snd_ymfpci_drec_source_info,
+	.get =		snd_ymfpci_drec_source_get,
+	.put =		snd_ymfpci_drec_source_put
+};
+
+/*
+ *  Mixer controls
+ */
+
+#define YMFPCI_SINGLE(xname, xindex, reg, shift) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_ymfpci_info_single, \
+  .get = snd_ymfpci_get_single, .put = snd_ymfpci_put_single, \
+  .private_value = ((reg) | ((shift) << 16)) }
+
+#define snd_ymfpci_info_single		snd_ctl_boolean_mono_info
+
+static int snd_ymfpci_get_single(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xffff;
+	unsigned int shift = (kcontrol->private_value >> 16) & 0xff;
+	unsigned int mask = 1;
+	
+	switch (reg) {
+	case YDSXGR_SPDIFOUTCTRL: break;
+	case YDSXGR_SPDIFINCTRL: break;
+	default: return -EINVAL;
+	}
+	ucontrol->value.integer.value[0] =
+		(snd_ymfpci_readl(chip, reg) >> shift) & mask;
+	return 0;
+}
+
+static int snd_ymfpci_put_single(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xffff;
+	unsigned int shift = (kcontrol->private_value >> 16) & 0xff;
+ 	unsigned int mask = 1;
+	int change;
+	unsigned int val, oval;
+	
+	switch (reg) {
+	case YDSXGR_SPDIFOUTCTRL: break;
+	case YDSXGR_SPDIFINCTRL: break;
+	default: return -EINVAL;
+	}
+	val = (ucontrol->value.integer.value[0] & mask);
+	val <<= shift;
+	spin_lock_irq(&chip->reg_lock);
+	oval = snd_ymfpci_readl(chip, reg);
+	val = (oval & ~(mask << shift)) | val;
+	change = val != oval;
+	snd_ymfpci_writel(chip, reg, val);
+	spin_unlock_irq(&chip->reg_lock);
+	return change;
+}
+
+static const DECLARE_TLV_DB_LINEAR(db_scale_native, TLV_DB_GAIN_MUTE, 0);
+
+#define YMFPCI_DOUBLE(xname, xindex, reg) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
+  .info = snd_ymfpci_info_double, \
+  .get = snd_ymfpci_get_double, .put = snd_ymfpci_put_double, \
+  .private_value = reg, \
+  .tlv = { .p = db_scale_native } }
+
+static int snd_ymfpci_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	unsigned int reg = kcontrol->private_value;
+
+	if (reg < 0x80 || reg >= 0xc0)
+		return -EINVAL;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 16383;
+	return 0;
+}
+
+static int snd_ymfpci_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int reg = kcontrol->private_value;
+	unsigned int shift_left = 0, shift_right = 16, mask = 16383;
+	unsigned int val;
+	
+	if (reg < 0x80 || reg >= 0xc0)
+		return -EINVAL;
+	spin_lock_irq(&chip->reg_lock);
+	val = snd_ymfpci_readl(chip, reg);
+	spin_unlock_irq(&chip->reg_lock);
+	ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
+	ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
+	return 0;
+}
+
+static int snd_ymfpci_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int reg = kcontrol->private_value;
+	unsigned int shift_left = 0, shift_right = 16, mask = 16383;
+	int change;
+	unsigned int val1, val2, oval;
+	
+	if (reg < 0x80 || reg >= 0xc0)
+		return -EINVAL;
+	val1 = ucontrol->value.integer.value[0] & mask;
+	val2 = ucontrol->value.integer.value[1] & mask;
+	val1 <<= shift_left;
+	val2 <<= shift_right;
+	spin_lock_irq(&chip->reg_lock);
+	oval = snd_ymfpci_readl(chip, reg);
+	val1 = (oval & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
+	change = val1 != oval;
+	snd_ymfpci_writel(chip, reg, val1);
+	spin_unlock_irq(&chip->reg_lock);
+	return change;
+}
+
+static int snd_ymfpci_put_nativedacvol(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int reg = YDSXGR_NATIVEDACOUTVOL;
+	unsigned int reg2 = YDSXGR_BUF441OUTVOL;
+	int change;
+	unsigned int value, oval;
+	
+	value = ucontrol->value.integer.value[0] & 0x3fff;
+	value |= (ucontrol->value.integer.value[1] & 0x3fff) << 16;
+	spin_lock_irq(&chip->reg_lock);
+	oval = snd_ymfpci_readl(chip, reg);
+	change = value != oval;
+	snd_ymfpci_writel(chip, reg, value);
+	snd_ymfpci_writel(chip, reg2, value);
+	spin_unlock_irq(&chip->reg_lock);
+	return change;
+}
+
+/*
+ * 4ch duplication
+ */
+#define snd_ymfpci_info_dup4ch		snd_ctl_boolean_mono_info
+
+static int snd_ymfpci_get_dup4ch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.integer.value[0] = chip->mode_dup4ch;
+	return 0;
+}
+
+static int snd_ymfpci_put_dup4ch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	int change;
+	change = (ucontrol->value.integer.value[0] != chip->mode_dup4ch);
+	if (change)
+		chip->mode_dup4ch = !!ucontrol->value.integer.value[0];
+	return change;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_dup4ch = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "4ch Duplication",
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.info = snd_ymfpci_info_dup4ch,
+	.get = snd_ymfpci_get_dup4ch,
+	.put = snd_ymfpci_put_dup4ch,
+};
+
+static const struct snd_kcontrol_new snd_ymfpci_controls[] = {
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Wave Playback Volume",
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+		  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+	.info = snd_ymfpci_info_double,
+	.get = snd_ymfpci_get_double,
+	.put = snd_ymfpci_put_nativedacvol,
+	.private_value = YDSXGR_NATIVEDACOUTVOL,
+	.tlv = { .p = db_scale_native },
+},
+YMFPCI_DOUBLE("Wave Capture Volume", 0, YDSXGR_NATIVEDACLOOPVOL),
+YMFPCI_DOUBLE("Digital Capture Volume", 0, YDSXGR_NATIVEDACINVOL),
+YMFPCI_DOUBLE("Digital Capture Volume", 1, YDSXGR_NATIVEADCINVOL),
+YMFPCI_DOUBLE("ADC Playback Volume", 0, YDSXGR_PRIADCOUTVOL),
+YMFPCI_DOUBLE("ADC Capture Volume", 0, YDSXGR_PRIADCLOOPVOL),
+YMFPCI_DOUBLE("ADC Playback Volume", 1, YDSXGR_SECADCOUTVOL),
+YMFPCI_DOUBLE("ADC Capture Volume", 1, YDSXGR_SECADCLOOPVOL),
+YMFPCI_DOUBLE("FM Legacy Playback Volume", 0, YDSXGR_LEGACYOUTVOL),
+YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("AC97 ", PLAYBACK,VOLUME), 0, YDSXGR_ZVOUTVOL),
+YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("", CAPTURE,VOLUME), 0, YDSXGR_ZVLOOPVOL),
+YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("AC97 ",PLAYBACK,VOLUME), 1, YDSXGR_SPDIFOUTVOL),
+YMFPCI_DOUBLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,VOLUME), 1, YDSXGR_SPDIFLOOPVOL),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), 0, YDSXGR_SPDIFOUTCTRL, 0),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, YDSXGR_SPDIFINCTRL, 0),
+YMFPCI_SINGLE(SNDRV_CTL_NAME_IEC958("Loop",NONE,NONE), 0, YDSXGR_SPDIFINCTRL, 4),
+};
+
+
+/*
+ * GPIO
+ */
+
+static int snd_ymfpci_get_gpio_out(struct snd_ymfpci *chip, int pin)
+{
+	u16 reg, mode;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	reg = snd_ymfpci_readw(chip, YDSXGR_GPIOFUNCENABLE);
+	reg &= ~(1 << (pin + 8));
+	reg |= (1 << pin);
+	snd_ymfpci_writew(chip, YDSXGR_GPIOFUNCENABLE, reg);
+	/* set the level mode for input line */
+	mode = snd_ymfpci_readw(chip, YDSXGR_GPIOTYPECONFIG);
+	mode &= ~(3 << (pin * 2));
+	snd_ymfpci_writew(chip, YDSXGR_GPIOTYPECONFIG, mode);
+	snd_ymfpci_writew(chip, YDSXGR_GPIOFUNCENABLE, reg | (1 << (pin + 8)));
+	mode = snd_ymfpci_readw(chip, YDSXGR_GPIOINSTATUS);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return (mode >> pin) & 1;
+}
+
+static int snd_ymfpci_set_gpio_out(struct snd_ymfpci *chip, int pin, int enable)
+{
+	u16 reg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	reg = snd_ymfpci_readw(chip, YDSXGR_GPIOFUNCENABLE);
+	reg &= ~(1 << pin);
+	reg &= ~(1 << (pin + 8));
+	snd_ymfpci_writew(chip, YDSXGR_GPIOFUNCENABLE, reg);
+	snd_ymfpci_writew(chip, YDSXGR_GPIOOUTCTRL, enable << pin);
+	snd_ymfpci_writew(chip, YDSXGR_GPIOFUNCENABLE, reg | (1 << (pin + 8)));
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	return 0;
+}
+
+#define snd_ymfpci_gpio_sw_info		snd_ctl_boolean_mono_info
+
+static int snd_ymfpci_gpio_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	int pin = (int)kcontrol->private_value;
+	ucontrol->value.integer.value[0] = snd_ymfpci_get_gpio_out(chip, pin);
+	return 0;
+}
+
+static int snd_ymfpci_gpio_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	int pin = (int)kcontrol->private_value;
+
+	if (snd_ymfpci_get_gpio_out(chip, pin) != ucontrol->value.integer.value[0]) {
+		snd_ymfpci_set_gpio_out(chip, pin, !!ucontrol->value.integer.value[0]);
+		ucontrol->value.integer.value[0] = snd_ymfpci_get_gpio_out(chip, pin);
+		return 1;
+	}
+	return 0;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_rear_shared = {
+	.name = "Shared Rear/Line-In Switch",
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.info = snd_ymfpci_gpio_sw_info,
+	.get = snd_ymfpci_gpio_sw_get,
+	.put = snd_ymfpci_gpio_sw_put,
+	.private_value = 2,
+};
+
+/*
+ * PCM voice volume
+ */
+
+static int snd_ymfpci_pcm_vol_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 0x8000;
+	return 0;
+}
+
+static int snd_ymfpci_pcm_vol_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int subs = kcontrol->id.subdevice;
+
+	ucontrol->value.integer.value[0] = chip->pcm_mixer[subs].left;
+	ucontrol->value.integer.value[1] = chip->pcm_mixer[subs].right;
+	return 0;
+}
+
+static int snd_ymfpci_pcm_vol_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ymfpci *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int subs = kcontrol->id.subdevice;
+	struct snd_pcm_substream *substream;
+	unsigned long flags;
+
+	if (ucontrol->value.integer.value[0] != chip->pcm_mixer[subs].left ||
+	    ucontrol->value.integer.value[1] != chip->pcm_mixer[subs].right) {
+		chip->pcm_mixer[subs].left = ucontrol->value.integer.value[0];
+		chip->pcm_mixer[subs].right = ucontrol->value.integer.value[1];
+		if (chip->pcm_mixer[subs].left > 0x8000)
+			chip->pcm_mixer[subs].left = 0x8000;
+		if (chip->pcm_mixer[subs].right > 0x8000)
+			chip->pcm_mixer[subs].right = 0x8000;
+
+		substream = (struct snd_pcm_substream *)kcontrol->private_value;
+		spin_lock_irqsave(&chip->voice_lock, flags);
+		if (substream->runtime && substream->runtime->private_data) {
+			struct snd_ymfpci_pcm *ypcm = substream->runtime->private_data;
+			if (!ypcm->use_441_slot)
+				ypcm->update_pcm_vol = 2;
+		}
+		spin_unlock_irqrestore(&chip->voice_lock, flags);
+		return 1;
+	}
+	return 0;
+}
+
+static const struct snd_kcontrol_new snd_ymfpci_pcm_volume = {
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name = "PCM Playback Volume",
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+		SNDRV_CTL_ELEM_ACCESS_INACTIVE,
+	.info = snd_ymfpci_pcm_vol_info,
+	.get = snd_ymfpci_pcm_vol_get,
+	.put = snd_ymfpci_pcm_vol_put,
+};
+
+
+/*
+ *  Mixer routines
+ */
+
+static void snd_ymfpci_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
+{
+	struct snd_ymfpci *chip = bus->private_data;
+	chip->ac97_bus = NULL;
+}
+
+static void snd_ymfpci_mixer_free_ac97(struct snd_ac97 *ac97)
+{
+	struct snd_ymfpci *chip = ac97->private_data;
+	chip->ac97 = NULL;
+}
+
+int snd_ymfpci_mixer(struct snd_ymfpci *chip, int rear_switch)
+{
+	struct snd_ac97_template ac97;
+	struct snd_kcontrol *kctl;
+	struct snd_pcm_substream *substream;
+	unsigned int idx;
+	int err;
+	static const struct snd_ac97_bus_ops ops = {
+		.write = snd_ymfpci_codec_write,
+		.read = snd_ymfpci_codec_read,
+	};
+
+	err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
+	if (err < 0)
+		return err;
+	chip->ac97_bus->private_free = snd_ymfpci_mixer_free_ac97_bus;
+	chip->ac97_bus->no_vra = 1; /* YMFPCI doesn't need VRA */
+
+	memset(&ac97, 0, sizeof(ac97));
+	ac97.private_data = chip;
+	ac97.private_free = snd_ymfpci_mixer_free_ac97;
+	err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
+	if (err < 0)
+		return err;
+
+	/* to be sure */
+	snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS,
+			     AC97_EA_VRA|AC97_EA_VRM, 0);
+
+	for (idx = 0; idx < ARRAY_SIZE(snd_ymfpci_controls); idx++) {
+		err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_ymfpci_controls[idx], chip));
+		if (err < 0)
+			return err;
+	}
+	if (chip->ac97->ext_id & AC97_EI_SDAC) {
+		kctl = snd_ctl_new1(&snd_ymfpci_dup4ch, chip);
+		err = snd_ctl_add(chip->card, kctl);
+		if (err < 0)
+			return err;
+	}
+
+	/* add S/PDIF control */
+	if (snd_BUG_ON(!chip->pcm_spdif))
+		return -ENXIO;
+	kctl = snd_ctl_new1(&snd_ymfpci_spdif_default, chip);
+	kctl->id.device = chip->pcm_spdif->device;
+	err = snd_ctl_add(chip->card, kctl);
+	if (err < 0)
+		return err;
+	kctl = snd_ctl_new1(&snd_ymfpci_spdif_mask, chip);
+	kctl->id.device = chip->pcm_spdif->device;
+	err = snd_ctl_add(chip->card, kctl);
+	if (err < 0)
+		return err;
+	kctl = snd_ctl_new1(&snd_ymfpci_spdif_stream, chip);
+	kctl->id.device = chip->pcm_spdif->device;
+	err = snd_ctl_add(chip->card, kctl);
+	if (err < 0)
+		return err;
+	chip->spdif_pcm_ctl = kctl;
+
+	/* direct recording source */
+	if (chip->device_id == PCI_DEVICE_ID_YAMAHA_754) {
+		kctl = snd_ctl_new1(&snd_ymfpci_drec_source, chip);
+		err = snd_ctl_add(chip->card, kctl);
+		if (err < 0)
+			return err;
+	}
+
+	/*
+	 * shared rear/line-in
+	 */
+	if (rear_switch) {
+		err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_ymfpci_rear_shared, chip));
+		if (err < 0)
+			return err;
+	}
+
+	/* per-voice volume */
+	substream = chip->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+	for (idx = 0; idx < 32; ++idx) {
+		kctl = snd_ctl_new1(&snd_ymfpci_pcm_volume, chip);
+		if (!kctl)
+			return -ENOMEM;
+		kctl->id.device = chip->pcm->device;
+		kctl->id.subdevice = idx;
+		kctl->private_value = (unsigned long)substream;
+		err = snd_ctl_add(chip->card, kctl);
+		if (err < 0)
+			return err;
+		chip->pcm_mixer[idx].left = 0x8000;
+		chip->pcm_mixer[idx].right = 0x8000;
+		chip->pcm_mixer[idx].ctl = kctl;
+		substream = substream->next;
+	}
+
+	return 0;
+}
+
+
+/*
+ * timer
+ */
+
+static int snd_ymfpci_timer_start(struct snd_timer *timer)
+{
+	struct snd_ymfpci *chip;
+	unsigned long flags;
+	unsigned int count;
+
+	chip = snd_timer_chip(timer);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (timer->sticks > 1) {
+		chip->timer_ticks = timer->sticks;
+		count = timer->sticks - 1;
+	} else {
+		/*
+		 * Divisor 1 is not allowed; fake it by using divisor 2 and
+		 * counting two ticks for each interrupt.
+		 */
+		chip->timer_ticks = 2;
+		count = 2 - 1;
+	}
+	snd_ymfpci_writew(chip, YDSXGR_TIMERCOUNT, count);
+	snd_ymfpci_writeb(chip, YDSXGR_TIMERCTRL, 0x03);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_ymfpci_timer_stop(struct snd_timer *timer)
+{
+	struct snd_ymfpci *chip;
+	unsigned long flags;
+
+	chip = snd_timer_chip(timer);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_ymfpci_writeb(chip, YDSXGR_TIMERCTRL, 0x00);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_ymfpci_timer_precise_resolution(struct snd_timer *timer,
+					       unsigned long *num, unsigned long *den)
+{
+	*num = 1;
+	*den = 96000;
+	return 0;
+}
+
+static const struct snd_timer_hardware snd_ymfpci_timer_hw = {
+	.flags = SNDRV_TIMER_HW_AUTO,
+	.resolution = 10417, /* 1 / 96 kHz = 10.41666...us */
+	.ticks = 0x10000,
+	.start = snd_ymfpci_timer_start,
+	.stop = snd_ymfpci_timer_stop,
+	.precise_resolution = snd_ymfpci_timer_precise_resolution,
+};
+
+int snd_ymfpci_timer(struct snd_ymfpci *chip, int device)
+{
+	struct snd_timer *timer = NULL;
+	struct snd_timer_id tid;
+	int err;
+
+	tid.dev_class = SNDRV_TIMER_CLASS_CARD;
+	tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
+	tid.card = chip->card->number;
+	tid.device = device;
+	tid.subdevice = 0;
+	err = snd_timer_new(chip->card, "YMFPCI", &tid, &timer);
+	if (err >= 0) {
+		strcpy(timer->name, "YMFPCI timer");
+		timer->private_data = chip;
+		timer->hw = snd_ymfpci_timer_hw;
+	}
+	chip->timer = timer;
+	return err;
+}
+
+
+/*
+ *  proc interface
+ */
+
+static void snd_ymfpci_proc_read(struct snd_info_entry *entry, 
+				 struct snd_info_buffer *buffer)
+{
+	struct snd_ymfpci *chip = entry->private_data;
+	int i;
+	
+	snd_iprintf(buffer, "YMFPCI\n\n");
+	for (i = 0; i <= YDSXGR_WORKBASE; i += 4)
+		snd_iprintf(buffer, "%04x: %04x\n", i, snd_ymfpci_readl(chip, i));
+}
+
+static int snd_ymfpci_proc_init(struct snd_card *card, struct snd_ymfpci *chip)
+{
+	return snd_card_ro_proc_new(card, "ymfpci", chip, snd_ymfpci_proc_read);
+}
+
+/*
+ *  initialization routines
+ */
+
+static void snd_ymfpci_aclink_reset(struct pci_dev * pci)
+{
+	u8 cmd;
+
+	pci_read_config_byte(pci, PCIR_DSXG_CTRL, &cmd);
+#if 0 // force to reset
+	if (cmd & 0x03) {
+#endif
+		pci_write_config_byte(pci, PCIR_DSXG_CTRL, cmd & 0xfc);
+		pci_write_config_byte(pci, PCIR_DSXG_CTRL, cmd | 0x03);
+		pci_write_config_byte(pci, PCIR_DSXG_CTRL, cmd & 0xfc);
+		pci_write_config_word(pci, PCIR_DSXG_PWRCTRL1, 0);
+		pci_write_config_word(pci, PCIR_DSXG_PWRCTRL2, 0);
+#if 0
+	}
+#endif
+}
+
+static void snd_ymfpci_enable_dsp(struct snd_ymfpci *chip)
+{
+	snd_ymfpci_writel(chip, YDSXGR_CONFIG, 0x00000001);
+}
+
+static void snd_ymfpci_disable_dsp(struct snd_ymfpci *chip)
+{
+	u32 val;
+	int timeout = 1000;
+
+	val = snd_ymfpci_readl(chip, YDSXGR_CONFIG);
+	if (val)
+		snd_ymfpci_writel(chip, YDSXGR_CONFIG, 0x00000000);
+	while (timeout-- > 0) {
+		val = snd_ymfpci_readl(chip, YDSXGR_STATUS);
+		if ((val & 0x00000002) == 0)
+			break;
+	}
+}
+
+static int snd_ymfpci_request_firmware(struct snd_ymfpci *chip)
+{
+	int err, is_1e;
+	const char *name;
+
+	err = request_firmware(&chip->dsp_microcode, "yamaha/ds1_dsp.fw",
+			       &chip->pci->dev);
+	if (err >= 0) {
+		if (chip->dsp_microcode->size != YDSXG_DSPLENGTH) {
+			dev_err(chip->card->dev,
+				"DSP microcode has wrong size\n");
+			err = -EINVAL;
+		}
+	}
+	if (err < 0)
+		return err;
+	is_1e = chip->device_id == PCI_DEVICE_ID_YAMAHA_724F ||
+		chip->device_id == PCI_DEVICE_ID_YAMAHA_740C ||
+		chip->device_id == PCI_DEVICE_ID_YAMAHA_744 ||
+		chip->device_id == PCI_DEVICE_ID_YAMAHA_754;
+	name = is_1e ? "yamaha/ds1e_ctrl.fw" : "yamaha/ds1_ctrl.fw";
+	err = request_firmware(&chip->controller_microcode, name,
+			       &chip->pci->dev);
+	if (err >= 0) {
+		if (chip->controller_microcode->size != YDSXG_CTRLLENGTH) {
+			dev_err(chip->card->dev,
+				"controller microcode has wrong size\n");
+			err = -EINVAL;
+		}
+	}
+	if (err < 0)
+		return err;
+	return 0;
+}
+
+MODULE_FIRMWARE("yamaha/ds1_dsp.fw");
+MODULE_FIRMWARE("yamaha/ds1_ctrl.fw");
+MODULE_FIRMWARE("yamaha/ds1e_ctrl.fw");
+
+static void snd_ymfpci_download_image(struct snd_ymfpci *chip)
+{
+	int i;
+	u16 ctrl;
+	const __le32 *inst;
+
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0x00000000);
+	snd_ymfpci_disable_dsp(chip);
+	snd_ymfpci_writel(chip, YDSXGR_MODE, 0x00010000);
+	snd_ymfpci_writel(chip, YDSXGR_MODE, 0x00000000);
+	snd_ymfpci_writel(chip, YDSXGR_MAPOFREC, 0x00000000);
+	snd_ymfpci_writel(chip, YDSXGR_MAPOFEFFECT, 0x00000000);
+	snd_ymfpci_writel(chip, YDSXGR_PLAYCTRLBASE, 0x00000000);
+	snd_ymfpci_writel(chip, YDSXGR_RECCTRLBASE, 0x00000000);
+	snd_ymfpci_writel(chip, YDSXGR_EFFCTRLBASE, 0x00000000);
+	ctrl = snd_ymfpci_readw(chip, YDSXGR_GLOBALCTRL);
+	snd_ymfpci_writew(chip, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
+
+	/* setup DSP instruction code */
+	inst = (const __le32 *)chip->dsp_microcode->data;
+	for (i = 0; i < YDSXG_DSPLENGTH / 4; i++)
+		snd_ymfpci_writel(chip, YDSXGR_DSPINSTRAM + (i << 2),
+				  le32_to_cpu(inst[i]));
+
+	/* setup control instruction code */
+	inst = (const __le32 *)chip->controller_microcode->data;
+	for (i = 0; i < YDSXG_CTRLLENGTH / 4; i++)
+		snd_ymfpci_writel(chip, YDSXGR_CTRLINSTRAM + (i << 2),
+				  le32_to_cpu(inst[i]));
+
+	snd_ymfpci_enable_dsp(chip);
+}
+
+static int snd_ymfpci_memalloc(struct snd_ymfpci *chip)
+{
+	long size, playback_ctrl_size;
+	int voice, bank, reg;
+	u8 *ptr;
+	dma_addr_t ptr_addr;
+
+	playback_ctrl_size = 4 + 4 * YDSXG_PLAYBACK_VOICES;
+	chip->bank_size_playback = snd_ymfpci_readl(chip, YDSXGR_PLAYCTRLSIZE) << 2;
+	chip->bank_size_capture = snd_ymfpci_readl(chip, YDSXGR_RECCTRLSIZE) << 2;
+	chip->bank_size_effect = snd_ymfpci_readl(chip, YDSXGR_EFFCTRLSIZE) << 2;
+	chip->work_size = YDSXG_DEFAULT_WORK_SIZE;
+	
+	size = ALIGN(playback_ctrl_size, 0x100) +
+	       ALIGN(chip->bank_size_playback * 2 * YDSXG_PLAYBACK_VOICES, 0x100) +
+	       ALIGN(chip->bank_size_capture * 2 * YDSXG_CAPTURE_VOICES, 0x100) +
+	       ALIGN(chip->bank_size_effect * 2 * YDSXG_EFFECT_VOICES, 0x100) +
+	       chip->work_size;
+	/* work_ptr must be aligned to 256 bytes, but it's already
+	   covered with the kernel page allocation mechanism */
+	chip->work_ptr = snd_devm_alloc_pages(&chip->pci->dev,
+					      SNDRV_DMA_TYPE_DEV, size);
+	if (!chip->work_ptr)
+		return -ENOMEM;
+	ptr = chip->work_ptr->area;
+	ptr_addr = chip->work_ptr->addr;
+	memset(ptr, 0, size);	/* for sure */
+
+	chip->bank_base_playback = ptr;
+	chip->bank_base_playback_addr = ptr_addr;
+	chip->ctrl_playback = (__le32 *)ptr;
+	chip->ctrl_playback[0] = cpu_to_le32(YDSXG_PLAYBACK_VOICES);
+	ptr += ALIGN(playback_ctrl_size, 0x100);
+	ptr_addr += ALIGN(playback_ctrl_size, 0x100);
+	for (voice = 0; voice < YDSXG_PLAYBACK_VOICES; voice++) {
+		chip->voices[voice].number = voice;
+		chip->voices[voice].bank = (struct snd_ymfpci_playback_bank *)ptr;
+		chip->voices[voice].bank_addr = ptr_addr;
+		for (bank = 0; bank < 2; bank++) {
+			chip->bank_playback[voice][bank] = (struct snd_ymfpci_playback_bank *)ptr;
+			ptr += chip->bank_size_playback;
+			ptr_addr += chip->bank_size_playback;
+		}
+	}
+	ptr = (char *)ALIGN((unsigned long)ptr, 0x100);
+	ptr_addr = ALIGN(ptr_addr, 0x100);
+	chip->bank_base_capture = ptr;
+	chip->bank_base_capture_addr = ptr_addr;
+	for (voice = 0; voice < YDSXG_CAPTURE_VOICES; voice++)
+		for (bank = 0; bank < 2; bank++) {
+			chip->bank_capture[voice][bank] = (struct snd_ymfpci_capture_bank *)ptr;
+			ptr += chip->bank_size_capture;
+			ptr_addr += chip->bank_size_capture;
+		}
+	ptr = (char *)ALIGN((unsigned long)ptr, 0x100);
+	ptr_addr = ALIGN(ptr_addr, 0x100);
+	chip->bank_base_effect = ptr;
+	chip->bank_base_effect_addr = ptr_addr;
+	for (voice = 0; voice < YDSXG_EFFECT_VOICES; voice++)
+		for (bank = 0; bank < 2; bank++) {
+			chip->bank_effect[voice][bank] = (struct snd_ymfpci_effect_bank *)ptr;
+			ptr += chip->bank_size_effect;
+			ptr_addr += chip->bank_size_effect;
+		}
+	ptr = (char *)ALIGN((unsigned long)ptr, 0x100);
+	ptr_addr = ALIGN(ptr_addr, 0x100);
+	chip->work_base = ptr;
+	chip->work_base_addr = ptr_addr;
+	
+	snd_BUG_ON(ptr + PAGE_ALIGN(chip->work_size) !=
+		   chip->work_ptr->area + chip->work_ptr->bytes);
+
+	snd_ymfpci_writel(chip, YDSXGR_PLAYCTRLBASE, chip->bank_base_playback_addr);
+	snd_ymfpci_writel(chip, YDSXGR_RECCTRLBASE, chip->bank_base_capture_addr);
+	snd_ymfpci_writel(chip, YDSXGR_EFFCTRLBASE, chip->bank_base_effect_addr);
+	snd_ymfpci_writel(chip, YDSXGR_WORKBASE, chip->work_base_addr);
+	snd_ymfpci_writel(chip, YDSXGR_WORKSIZE, chip->work_size >> 2);
+
+	/* S/PDIF output initialization */
+	chip->spdif_bits = chip->spdif_pcm_bits = SNDRV_PCM_DEFAULT_CON_SPDIF & 0xffff;
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTCTRL, 0);
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFOUTSTATUS, chip->spdif_bits);
+
+	/* S/PDIF input initialization */
+	snd_ymfpci_writew(chip, YDSXGR_SPDIFINCTRL, 0);
+
+	/* digital mixer setup */
+	for (reg = 0x80; reg < 0xc0; reg += 4)
+		snd_ymfpci_writel(chip, reg, 0);
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_BUF441OUTVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_ZVOUTVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_SPDIFOUTVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEADCINVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEDACINVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_PRIADCLOOPVOL, 0x3fff3fff);
+	snd_ymfpci_writel(chip, YDSXGR_LEGACYOUTVOL, 0x3fff3fff);
+	
+	return 0;
+}
+
+static void snd_ymfpci_free(struct snd_card *card)
+{
+	struct snd_ymfpci *chip = card->private_data;
+	u16 ctrl;
+
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0);
+	snd_ymfpci_writel(chip, YDSXGR_BUF441OUTVOL, 0);
+	snd_ymfpci_writel(chip, YDSXGR_LEGACYOUTVOL, 0);
+	snd_ymfpci_writel(chip, YDSXGR_STATUS, ~0);
+	snd_ymfpci_disable_dsp(chip);
+	snd_ymfpci_writel(chip, YDSXGR_PLAYCTRLBASE, 0);
+	snd_ymfpci_writel(chip, YDSXGR_RECCTRLBASE, 0);
+	snd_ymfpci_writel(chip, YDSXGR_EFFCTRLBASE, 0);
+	snd_ymfpci_writel(chip, YDSXGR_WORKBASE, 0);
+	snd_ymfpci_writel(chip, YDSXGR_WORKSIZE, 0);
+	ctrl = snd_ymfpci_readw(chip, YDSXGR_GLOBALCTRL);
+	snd_ymfpci_writew(chip, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
+
+	snd_ymfpci_ac3_done(chip);
+
+	snd_ymfpci_free_gameport(chip);
+	
+	pci_write_config_word(chip->pci, 0x40, chip->old_legacy_ctrl);
+	
+	release_firmware(chip->dsp_microcode);
+	release_firmware(chip->controller_microcode);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static const int saved_regs_index[] = {
+	/* spdif */
+	YDSXGR_SPDIFOUTCTRL,
+	YDSXGR_SPDIFOUTSTATUS,
+	YDSXGR_SPDIFINCTRL,
+	/* volumes */
+	YDSXGR_PRIADCLOOPVOL,
+	YDSXGR_NATIVEDACINVOL,
+	YDSXGR_NATIVEDACOUTVOL,
+	YDSXGR_BUF441OUTVOL,
+	YDSXGR_NATIVEADCINVOL,
+	YDSXGR_SPDIFLOOPVOL,
+	YDSXGR_SPDIFOUTVOL,
+	YDSXGR_ZVOUTVOL,
+	YDSXGR_LEGACYOUTVOL,
+	/* address bases */
+	YDSXGR_PLAYCTRLBASE,
+	YDSXGR_RECCTRLBASE,
+	YDSXGR_EFFCTRLBASE,
+	YDSXGR_WORKBASE,
+	/* capture set up */
+	YDSXGR_MAPOFREC,
+	YDSXGR_RECFORMAT,
+	YDSXGR_RECSLOTSR,
+	YDSXGR_ADCFORMAT,
+	YDSXGR_ADCSLOTSR,
+};
+#define YDSXGR_NUM_SAVED_REGS	ARRAY_SIZE(saved_regs_index)
+
+static int snd_ymfpci_suspend(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct snd_ymfpci *chip = card->private_data;
+	unsigned int i;
+	
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+	snd_ac97_suspend(chip->ac97);
+	for (i = 0; i < YDSXGR_NUM_SAVED_REGS; i++)
+		chip->saved_regs[i] = snd_ymfpci_readl(chip, saved_regs_index[i]);
+	chip->saved_ydsxgr_mode = snd_ymfpci_readl(chip, YDSXGR_MODE);
+	pci_read_config_word(chip->pci, PCIR_DSXG_LEGACY,
+			     &chip->saved_dsxg_legacy);
+	pci_read_config_word(chip->pci, PCIR_DSXG_ELEGACY,
+			     &chip->saved_dsxg_elegacy);
+	snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0);
+	snd_ymfpci_writel(chip, YDSXGR_BUF441OUTVOL, 0);
+	snd_ymfpci_disable_dsp(chip);
+	return 0;
+}
+
+static int snd_ymfpci_resume(struct device *dev)
+{
+	struct pci_dev *pci = to_pci_dev(dev);
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct snd_ymfpci *chip = card->private_data;
+	unsigned int i;
+
+	snd_ymfpci_aclink_reset(pci);
+	snd_ymfpci_codec_ready(chip, 0);
+	snd_ymfpci_download_image(chip);
+	udelay(100);
+
+	for (i = 0; i < YDSXGR_NUM_SAVED_REGS; i++)
+		snd_ymfpci_writel(chip, saved_regs_index[i], chip->saved_regs[i]);
+
+	snd_ac97_resume(chip->ac97);
+
+	pci_write_config_word(chip->pci, PCIR_DSXG_LEGACY,
+			      chip->saved_dsxg_legacy);
+	pci_write_config_word(chip->pci, PCIR_DSXG_ELEGACY,
+			      chip->saved_dsxg_elegacy);
+
+	/* start hw again */
+	if (chip->start_count > 0) {
+		spin_lock_irq(&chip->reg_lock);
+		snd_ymfpci_writel(chip, YDSXGR_MODE, chip->saved_ydsxgr_mode);
+		chip->active_bank = snd_ymfpci_readl(chip, YDSXGR_CTRLSELECT);
+		spin_unlock_irq(&chip->reg_lock);
+	}
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	return 0;
+}
+
+SIMPLE_DEV_PM_OPS(snd_ymfpci_pm, snd_ymfpci_suspend, snd_ymfpci_resume);
+#endif /* CONFIG_PM_SLEEP */
+
+int snd_ymfpci_create(struct snd_card *card,
+		      struct pci_dev *pci,
+		      unsigned short old_legacy_ctrl)
+{
+	struct snd_ymfpci *chip = card->private_data;
+	int err;
+	
+	/* enable PCI device */
+	err = pcim_enable_device(pci);
+	if (err < 0)
+		return err;
+
+	chip->old_legacy_ctrl = old_legacy_ctrl;
+	spin_lock_init(&chip->reg_lock);
+	spin_lock_init(&chip->voice_lock);
+	init_waitqueue_head(&chip->interrupt_sleep);
+	atomic_set(&chip->interrupt_sleep_count, 0);
+	chip->card = card;
+	chip->pci = pci;
+	chip->irq = -1;
+	chip->device_id = pci->device;
+	chip->rev = pci->revision;
+
+	err = pci_request_regions(pci, "YMFPCI");
+	if (err < 0)
+		return err;
+
+	chip->reg_area_phys = pci_resource_start(pci, 0);
+	chip->reg_area_virt = devm_ioremap(&pci->dev, chip->reg_area_phys, 0x8000);
+	if (!chip->reg_area_virt) {
+		dev_err(chip->card->dev,
+			"unable to grab memory region 0x%lx-0x%lx\n",
+			chip->reg_area_phys, chip->reg_area_phys + 0x8000 - 1);
+		return -EBUSY;
+	}
+	pci_set_master(pci);
+	chip->src441_used = -1;
+
+	if (devm_request_irq(&pci->dev, pci->irq, snd_ymfpci_interrupt, IRQF_SHARED,
+			KBUILD_MODNAME, chip)) {
+		dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
+		return -EBUSY;
+	}
+	chip->irq = pci->irq;
+	card->sync_irq = chip->irq;
+	card->private_free = snd_ymfpci_free;
+
+	snd_ymfpci_aclink_reset(pci);
+	if (snd_ymfpci_codec_ready(chip, 0) < 0)
+		return -EIO;
+
+	err = snd_ymfpci_request_firmware(chip);
+	if (err < 0) {
+		dev_err(chip->card->dev, "firmware request failed: %d\n", err);
+		return err;
+	}
+	snd_ymfpci_download_image(chip);
+
+	udelay(100); /* seems we need a delay after downloading image.. */
+
+	if (snd_ymfpci_memalloc(chip) < 0)
+		return -EIO;
+
+	err = snd_ymfpci_ac3_init(chip);
+	if (err < 0)
+		return err;
+
+#ifdef CONFIG_PM_SLEEP
+	chip->saved_regs = devm_kmalloc_array(&pci->dev, YDSXGR_NUM_SAVED_REGS,
+					      sizeof(u32), GFP_KERNEL);
+	if (!chip->saved_regs)
+		return -ENOMEM;
+#endif
+
+	snd_ymfpci_proc_init(card, chip);
+
+	return 0;
+}