ALSA: wss_lib: use wss pcm code instead of ad1848 one

Use the wss pcm code and kill the ad1848 pcm code.

The AD1848 chip is much slower than CS4231 chips
so the waiting loop was increased 100x (10x is not
enough).

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

8 files changed, 122 insertions, 573 deletions

diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index 8705556..cca11d5 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -1,12 +1,13 @@
 # ALSA ISA drivers
 
-config SND_AD1848_LIB
+config SND_WSS_LIB
         tristate
         select SND_PCM
 
-config SND_WSS_LIB
+config SND_AD1848_LIB
         tristate
         select SND_PCM
+        select SND_WSS_LIB
 
 config SND_SB_COMMON
         tristate
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index d5a9663..17970c2 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -102,7 +102,7 @@ static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n)
 
 	card->private_data = chip;
 
-	error = snd_ad1848_pcm(chip, 0, &pcm);
+	error = snd_wss_pcm(chip, 0, &pcm);
 	if (error < 0)
 		goto out;
 
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
index 5de0460..aa803d3 100644
--- a/sound/isa/ad1848/ad1848_lib.c
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -46,34 +46,6 @@ MODULE_LICENSE("GPL");
  *  Some variables
  */
 
-static unsigned char freq_bits[14] = {
-	/* 5510 */	0x00 | AD1848_XTAL2,
-	/* 6620 */	0x0E | AD1848_XTAL2,
-	/* 8000 */	0x00 | AD1848_XTAL1,
-	/* 9600 */	0x0E | AD1848_XTAL1,
-	/* 11025 */	0x02 | AD1848_XTAL2,
-	/* 16000 */	0x02 | AD1848_XTAL1,
-	/* 18900 */	0x04 | AD1848_XTAL2,
-	/* 22050 */	0x06 | AD1848_XTAL2,
-	/* 27042 */	0x04 | AD1848_XTAL1,
-	/* 32000 */	0x06 | AD1848_XTAL1,
-	/* 33075 */	0x0C | AD1848_XTAL2,
-	/* 37800 */	0x08 | AD1848_XTAL2,
-	/* 44100 */	0x0A | AD1848_XTAL2,
-	/* 48000 */	0x0C | AD1848_XTAL1
-};
-
-static unsigned int rates[14] = {
-	5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
-	27042, 32000, 33075, 37800, 44100, 48000
-};
-
-static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
-	.count = ARRAY_SIZE(rates),
-	.list = rates,
-	.mask = 0,
-};
-
 static unsigned char snd_ad1848_original_image[16] =
 {
 	0x00,			/* 00 - lic */
@@ -128,15 +100,6 @@ void snd_ad1848_out(struct snd_wss *chip,
 
 EXPORT_SYMBOL(snd_ad1848_out);
 
-static void snd_ad1848_dout(struct snd_wss *chip,
-			    unsigned char reg, unsigned char value)
-{
-	snd_ad1848_wait(chip);
-	outb(chip->mce_bit | reg, chip->port + CS4231P(REGSEL));
-	outb(value, chip->port + CS4231P(REG));
-	mb();
-}
-
 static unsigned char snd_ad1848_in(struct snd_wss *chip, unsigned char reg)
 {
 	snd_ad1848_wait(chip);
@@ -261,315 +224,6 @@ static void snd_ad1848_mce_down(struct snd_wss *chip)
 		   inb(chip->port + CS4231P(REGSEL)));
 }
 
-static unsigned int snd_ad1848_get_count(unsigned char format,
-				         unsigned int size)
-{
-	switch (format & 0xe0) {
-	case AD1848_LINEAR_16:
-		size >>= 1;
-		break;
-	}
-	if (format & AD1848_STEREO)
-		size >>= 1;
-	return size;
-}
-
-static int snd_ad1848_trigger(struct snd_wss *chip, unsigned char what,
-			      int channel, int cmd)
-{
-	int result = 0;
-
-#if 0
-	printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
-#endif
-	spin_lock(&chip->reg_lock);
-	if (cmd == SNDRV_PCM_TRIGGER_START) {
-		if (chip->image[AD1848_IFACE_CTRL] & what) {
-			spin_unlock(&chip->reg_lock);
-			return 0;
-		}
-		snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
-	} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
-		if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
-			spin_unlock(&chip->reg_lock);
-			return 0;
-		}
-		snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
-	} else {
-		result = -EINVAL;
-	}
-	spin_unlock(&chip->reg_lock);
-	return result;
-}
-
-/*
- *  CODEC I/O
- */
-
-static unsigned char snd_ad1848_get_rate(unsigned int rate)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(rates); i++)
-		if (rate == rates[i])
-			return freq_bits[i];
-	snd_BUG();
-	return freq_bits[ARRAY_SIZE(rates) - 1];
-}
-
-static int snd_ad1848_ioctl(struct snd_pcm_substream *substream,
-			    unsigned int cmd, void *arg)
-{
-	return snd_pcm_lib_ioctl(substream, cmd, arg);
-}
-
-static unsigned char snd_ad1848_get_format(int format, int channels)
-{
-	unsigned char rformat;
-
-	rformat = AD1848_LINEAR_8;
-	switch (format) {
-	case SNDRV_PCM_FORMAT_A_LAW:	rformat = AD1848_ALAW_8; break;
-	case SNDRV_PCM_FORMAT_MU_LAW:	rformat = AD1848_ULAW_8; break;
-	case SNDRV_PCM_FORMAT_S16_LE:	rformat = AD1848_LINEAR_16; break;
-	}
-	if (channels > 1)
-		rformat |= AD1848_STEREO;
-#if 0
-	snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
-#endif
-	return rformat;
-}
-
-static void snd_ad1848_calibrate_mute(struct snd_wss *chip, int mute)
-{
-	unsigned long flags;
-	
-	mute = mute ? 1 : 0;
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	if (chip->calibrate_mute == mute) {
-		spin_unlock_irqrestore(&chip->reg_lock, flags);
-		return;
-	}
-	if (!mute) {
-		snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
-		snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
-	}
-	snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
-	snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
-	snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
-	snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
-	snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
-	snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
-	chip->calibrate_mute = mute;
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-}
-
-static void snd_ad1848_set_data_format(struct snd_wss *chip,
-				       struct snd_pcm_hw_params *hw_params)
-{
-	if (hw_params == NULL) {
-		chip->image[AD1848_DATA_FORMAT] = 0x20;
-	} else {
-		chip->image[AD1848_DATA_FORMAT] =
-		    snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
-		    snd_ad1848_get_rate(params_rate(hw_params));
-	}
-	// snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
-}
-
-static int snd_ad1848_open(struct snd_wss *chip, unsigned int mode)
-{
-	unsigned long flags;
-
-	if (chip->mode & WSS_MODE_OPEN)
-		return -EAGAIN;
-
-	snd_ad1848_mce_down(chip);
-
-#ifdef SNDRV_DEBUG_MCE
-	snd_printk("open: (1)\n");
-#endif
-	snd_ad1848_mce_up(chip);
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
-			     AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
-			     AD1848_CALIB_MODE);
-	chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
-	snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	snd_ad1848_mce_down(chip);
-
-#ifdef SNDRV_DEBUG_MCE
-	snd_printk("open: (2)\n");
-#endif
-
-	snd_ad1848_set_data_format(chip, NULL);
-
-	snd_ad1848_mce_up(chip);
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	snd_ad1848_mce_down(chip);
-
-#ifdef SNDRV_DEBUG_MCE
-	snd_printk("open: (3)\n");
-#endif
-
-	/* ok. now enable and ack CODEC IRQ */
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
-	snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-
-	chip->mode = mode;
-
-	return 0;
-}
-
-static void snd_ad1848_close(struct snd_wss *chip)
-{
-	unsigned long flags;
-
-	if (!chip->mode)
-		return;
-	/* disable IRQ */
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
-	snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-
-	/* now disable capture & playback */
-
-	snd_ad1848_mce_up(chip);
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
-			     AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
-	snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	snd_ad1848_mce_down(chip);
-
-	/* clear IRQ again */
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	outb(0, chip->port + CS4231P(STATUS));	/* clear IRQ */
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-
-	chip->mode = 0;
-}
-
-/*
- *  ok.. exported functions..
- */
-
-static int snd_ad1848_playback_trigger(struct snd_pcm_substream *substream,
-				       int cmd)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
-}
-
-static int snd_ad1848_capture_trigger(struct snd_pcm_substream *substream,
-				      int cmd)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
-}
-
-static int snd_ad1848_playback_hw_params(struct snd_pcm_substream *substream,
-					 struct snd_pcm_hw_params *hw_params)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	unsigned long flags;
-	int err;
-
-	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
-		return err;
-	snd_ad1848_calibrate_mute(chip, 1);
-	snd_ad1848_set_data_format(chip, hw_params);
-	snd_ad1848_mce_up(chip);
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	snd_ad1848_mce_down(chip);
-	snd_ad1848_calibrate_mute(chip, 0);
-	return 0;
-}
-
-static int snd_ad1848_playback_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
-static int snd_ad1848_playback_prepare(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	unsigned long flags;
-	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
-	unsigned int count = snd_pcm_lib_period_bytes(substream);
-
-	chip->p_dma_size = size;
-	chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
-	snd_dma_program(chip->dma1, runtime->dma_addr, size,
-			DMA_MODE_WRITE | DMA_AUTOINIT);
-	count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
-	snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	return 0;
-}
-
-static int snd_ad1848_capture_hw_params(struct snd_pcm_substream *substream,
-					struct snd_pcm_hw_params *hw_params)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	unsigned long flags;
-	int err;
-
-	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
-		return err;
-	snd_ad1848_calibrate_mute(chip, 1);
-	snd_ad1848_set_data_format(chip, hw_params);
-	snd_ad1848_mce_up(chip);
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	snd_ad1848_mce_down(chip);
-	snd_ad1848_calibrate_mute(chip, 0);
-	return 0;
-}
-
-static int snd_ad1848_capture_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
-static int snd_ad1848_capture_prepare(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	unsigned long flags;
-	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
-	unsigned int count = snd_pcm_lib_period_bytes(substream);
-
-	chip->c_dma_size = size;
-	chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
-	snd_dma_program(chip->dma2, runtime->dma_addr, size,
-			DMA_MODE_READ | DMA_AUTOINIT);
-	count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
-	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
-	snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
-	spin_unlock_irqrestore(&chip->reg_lock, flags);
-	return 0;
-}
-
 static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id)
 {
 	struct snd_wss *chip = dev_id;
@@ -582,28 +236,6 @@ static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static snd_pcm_uframes_t snd_ad1848_playback_pointer(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	size_t ptr;
-	
-	if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
-		return 0;
-	ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
-	return bytes_to_frames(substream->runtime, ptr);
-}
-
-static snd_pcm_uframes_t snd_ad1848_capture_pointer(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	size_t ptr;
-
-	if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
-		return 0;
-	ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
-	return bytes_to_frames(substream->runtime, ptr);
-}
-
 /*
 
  */
@@ -728,6 +360,16 @@ static int snd_ad1848_probe(struct snd_wss *chip)
 		snd_ad1848_out(chip, i, *ptr++);
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 	snd_ad1848_mce_up(chip);
+	/* init needed for WSS pcm */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE |
+				AD1848_PLAYBACK_PIO |
+				AD1848_CAPTURE_ENABLE |
+				AD1848_CAPTURE_PIO |
+				AD1848_CALIB_MODE);
+	chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
+	snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
 	snd_ad1848_mce_down(chip);
 	return 0;		/* all things are ok.. */
 }
@@ -736,102 +378,6 @@ static int snd_ad1848_probe(struct snd_wss *chip)
 
  */
 
-static struct snd_pcm_hardware snd_ad1848_playback =
-{
-	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-				 SNDRV_PCM_INFO_MMAP_VALID),
-	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
-				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
-	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
-	.rate_min =		5510,
-	.rate_max =		48000,
-	.channels_min =		1,
-	.channels_max =		2,
-	.buffer_bytes_max =	(128*1024),
-	.period_bytes_min =	64,
-	.period_bytes_max =	(128*1024),
-	.periods_min =		1,
-	.periods_max =		1024,
-	.fifo_size =		0,
-};
-
-static struct snd_pcm_hardware snd_ad1848_capture =
-{
-	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-				 SNDRV_PCM_INFO_MMAP_VALID),
-	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
-				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
-	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
-	.rate_min =		5510,
-	.rate_max =		48000,
-	.channels_min =		1,
-	.channels_max =		2,
-	.buffer_bytes_max =	(128*1024),
-	.period_bytes_min =	64,
-	.period_bytes_max =	(128*1024),
-	.periods_min =		1,
-	.periods_max =		1024,
-	.fifo_size =		0,
-};
-
-/*
-
- */
-
-static int snd_ad1848_playback_open(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	int err;
-
-	err = snd_ad1848_open(chip, WSS_MODE_PLAY);
-	if (err < 0)
-		return err;
-	chip->playback_substream = substream;
-	runtime->hw = snd_ad1848_playback;
-	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
-	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
-	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
-	return 0;
-}
-
-static int snd_ad1848_capture_open(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	int err;
-
-	err = snd_ad1848_open(chip, WSS_MODE_RECORD);
-	if (err < 0)
-		return err;
-	chip->capture_substream = substream;
-	runtime->hw = snd_ad1848_capture;
-	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
-	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
-	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
-	return 0;
-}
-
-static int snd_ad1848_playback_close(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-
-	chip->mode &= ~WSS_MODE_PLAY;
-	chip->playback_substream = NULL;
-	snd_ad1848_close(chip);
-	return 0;
-}
-
-static int snd_ad1848_capture_close(struct snd_pcm_substream *substream)
-{
-	struct snd_wss *chip = snd_pcm_substream_chip(substream);
-
-	chip->mode &= ~WSS_MODE_RECORD;
-	chip->capture_substream = NULL;
-	snd_ad1848_close(chip);
-	return 0;
-}
-
 static int snd_ad1848_free(struct snd_wss *chip)
 {
 	release_and_free_resource(chip->res_port);
@@ -851,17 +397,6 @@ static int snd_ad1848_dev_free(struct snd_device *device)
 	return snd_ad1848_free(chip);
 }
 
-static const char *snd_ad1848_chip_id(struct snd_wss *chip)
-{
-	switch (chip->hardware) {
-	case AD1848_HW_AD1847:	return "AD1847";
-	case AD1848_HW_AD1848:	return "AD1848";
-	case AD1848_HW_CS4248:	return "CS4248";
-	case AD1848_HW_CMI8330: return "CMI8330/C3D";
-	default:		return "???";
-	}
-}
-
 int snd_ad1848_create(struct snd_card *card,
 		      unsigned long port,
 		      int irq, int dma,
@@ -935,65 +470,6 @@ int snd_ad1848_create(struct snd_card *card,
 
 EXPORT_SYMBOL(snd_ad1848_create);
 
-static struct snd_pcm_ops snd_ad1848_playback_ops = {
-	.open =		snd_ad1848_playback_open,
-	.close =	snd_ad1848_playback_close,
-	.ioctl =	snd_ad1848_ioctl,
-	.hw_params =	snd_ad1848_playback_hw_params,
-	.hw_free =	snd_ad1848_playback_hw_free,
-	.prepare =	snd_ad1848_playback_prepare,
-	.trigger =	snd_ad1848_playback_trigger,
-	.pointer =	snd_ad1848_playback_pointer,
-};
-
-static struct snd_pcm_ops snd_ad1848_capture_ops = {
-	.open =		snd_ad1848_capture_open,
-	.close =	snd_ad1848_capture_close,
-	.ioctl =	snd_ad1848_ioctl,
-	.hw_params =	snd_ad1848_capture_hw_params,
-	.hw_free =	snd_ad1848_capture_hw_free,
-	.prepare =	snd_ad1848_capture_prepare,
-	.trigger =	snd_ad1848_capture_trigger,
-	.pointer =	snd_ad1848_capture_pointer,
-};
-
-int snd_ad1848_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm)
-{
-	struct snd_pcm *pcm;
-	int err;
-
-	if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
-		return err;
-
-	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
-	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
-
-	pcm->private_data = chip;
-	pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
-	strcpy(pcm->name, snd_ad1848_chip_id(chip));
-
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      snd_dma_isa_data(),
-					      64 * 1024,
-					      chip->dma1 > 3 ?
-							128 * 1024 : 64 * 1024);
-
-	chip->pcm = pcm;
-	if (rpcm)
-		*rpcm = pcm;
-	return 0;
-}
-
-EXPORT_SYMBOL(snd_ad1848_pcm);
-
-const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)
-{
-	return direction == SNDRV_PCM_STREAM_PLAYBACK ?
-		&snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
-}
-
-EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
-
 /*
  *  INIT part
  */
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index ca6f602..6f7e8bb 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -413,7 +413,7 @@ static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *
 	chip->streams[CMI_SB_STREAM].private_data = chip->sb;
 
 	/* AD1848 */
-	ops = snd_ad1848_get_pcm_ops(CMI_AD_STREAM);
+	ops = snd_wss_get_pcm_ops(CMI_AD_STREAM);
 	chip->streams[CMI_AD_STREAM].ops = *ops;
 	chip->streams[CMI_AD_STREAM].open = ops->open;
 	chip->streams[CMI_AD_STREAM].ops.open = cmi_open_callbacks[CMI_AD_STREAM];
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 4f172a2..561d4b3 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -754,18 +754,15 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
 #ifdef OPTi93X
 	chip->codec = codec;
 #endif
-	error = snd_wss_pcm(codec, 0, &pcm);
-	if (error < 0)
-		return error;
 #else
 	error = snd_ad1848_create(card, chip->wss_base + 4, chip->irq,
 				  chip->dma1, WSS_HW_DETECT, &codec);
 	if (error < 0)
 		return error;
-	error = snd_ad1848_pcm(codec, 0, &pcm);
+#endif
+	error = snd_wss_pcm(codec, 0, &pcm);
 	if (error < 0)
 		return error;
-#endif
 	error = snd_wss_mixer(codec);
 	if (error < 0)
 		return error;
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index ef98fe7..2f89ecb 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -554,10 +554,10 @@ static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
 		goto err_unmap2;
 	card->private_data = chip;
 
-	err = snd_ad1848_pcm(chip, 0, NULL);
+	err = snd_wss_pcm(chip, 0, NULL);
 	if (err < 0) {
 		snd_printk(KERN_ERR PFX
-			   "error creating new ad1848 PCM device\n");
+			   "error creating new WSS PCM device\n");
 		goto err_unmap2;
 	}
 	err = snd_wss_mixer(chip);
diff --git a/sound/isa/sgalaxy.c b/sound/isa/sgalaxy.c
index e4f06de..b43d667 100644
--- a/sound/isa/sgalaxy.c
+++ b/sound/isa/sgalaxy.c
@@ -273,8 +273,9 @@ static int __devinit snd_sgalaxy_probe(struct device *devptr, unsigned int dev)
 		goto _err;
 	card->private_data = chip;
 
-	if ((err = snd_ad1848_pcm(chip, 0, NULL)) < 0) {
-		snd_printdd(PFX "error creating new ad1848 PCM device\n");
+	err = snd_wss_pcm(chip, 0, NULL);
+	if (err < 0) {
+		snd_printdd(PFX "error creating new WSS PCM device\n");
 		goto _err;
 	}
 	err = snd_wss_mixer(chip);
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 1688f07..57d1e8e 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -380,7 +380,7 @@ static void snd_wss_busy_wait(struct snd_wss *chip)
 	for (timeout = 5; timeout > 0; timeout--)
 		wss_inb(chip, CS4231P(REGSEL));
 	/* end of cleanup sequence */
-	for (timeout = 250;
+	for (timeout = 25000;
 	     timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
 	     timeout--)
 		udelay(10);
@@ -413,6 +413,7 @@ void snd_wss_mce_down(struct snd_wss *chip)
 	unsigned long flags;
 	unsigned long end_time;
 	int timeout;
+	int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848;
 
 	snd_wss_busy_wait(chip);
 
@@ -427,10 +428,8 @@ void snd_wss_mce_down(struct snd_wss *chip)
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 	if (timeout == 0x80)
 		snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
-	if ((timeout & CS4231_MCE) == 0 ||
-	    !(chip->hardware & (WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK))) {
+	if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & hw_mask))
 		return;
-	}
 
 	/*
 	 * Wait for (possible -- during init auto-calibration may not be set)
@@ -601,12 +600,14 @@ static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
 		     mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
 	snd_wss_dout(chip, CS4231_RIGHT_OUTPUT,
 		     mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
-	snd_wss_dout(chip, CS4231_LEFT_LINE_IN,
-		     mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
-	snd_wss_dout(chip, CS4231_RIGHT_LINE_IN,
-		     mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
-	snd_wss_dout(chip, CS4231_MONO_CTRL,
-		     mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
+		snd_wss_dout(chip, CS4231_LEFT_LINE_IN,
+			     mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
+		snd_wss_dout(chip, CS4231_RIGHT_LINE_IN,
+			     mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
+		snd_wss_dout(chip, CS4231_MONO_CTRL,
+			     mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
+	}
 	if (chip->hardware == WSS_HW_INTERWAVE) {
 		snd_wss_dout(chip, CS4231_LEFT_MIC_INPUT,
 			     mute ? 0x80 : chip->image[CS4231_LEFT_MIC_INPUT]);
@@ -706,7 +707,10 @@ static void snd_wss_capture_format(struct snd_wss *chip,
 			snd_wss_mce_up(chip);
 			spin_lock_irqsave(&chip->reg_lock, flags);
 		}
-		snd_wss_out(chip, CS4231_REC_FORMAT, cdfr);
+		if (chip->hardware & WSS_HW_AD1848_MASK)
+			snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
+		else
+			snd_wss_out(chip, CS4231_REC_FORMAT, cdfr);
 		spin_unlock_irqrestore(&chip->reg_lock, flags);
 		snd_wss_mce_down(chip);
 	}
@@ -818,7 +822,9 @@ static void snd_wss_init(struct snd_wss *chip)
 
 	snd_wss_mce_up(chip);
 	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_wss_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK))
+		snd_wss_out(chip, CS4231_REC_FORMAT,
+			    chip->image[CS4231_REC_FORMAT]);
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 	snd_wss_mce_down(chip);
 
@@ -844,20 +850,24 @@ static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
 	}
 	/* ok. now enable and ack CODEC IRQ */
 	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_wss_out(chip, CS4231_IRQ_STATUS,
-		    CS4231_PLAYBACK_IRQ |
-		    CS4231_RECORD_IRQ |
-		    CS4231_TIMER_IRQ);
-	snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
+		snd_wss_out(chip, CS4231_IRQ_STATUS,
+			    CS4231_PLAYBACK_IRQ |
+			    CS4231_RECORD_IRQ |
+			    CS4231_TIMER_IRQ);
+		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	}
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
 	snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
-	snd_wss_out(chip, CS4231_IRQ_STATUS,
-		    CS4231_PLAYBACK_IRQ |
-		    CS4231_RECORD_IRQ |
-		    CS4231_TIMER_IRQ);
-	snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
+		snd_wss_out(chip, CS4231_IRQ_STATUS,
+			    CS4231_PLAYBACK_IRQ |
+			    CS4231_RECORD_IRQ |
+			    CS4231_TIMER_IRQ);
+		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	}
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 
 	chip->mode = mode;
@@ -879,7 +889,8 @@ static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
 
 	/* disable IRQ */
 	spin_lock_irqsave(&chip->reg_lock, flags);
-	snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK))
+		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
@@ -902,7 +913,8 @@ static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
 	}
 
 	/* clear IRQ again */
-	snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
+	if (!(chip->hardware & WSS_HW_AD1848_MASK))
+		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
@@ -1023,7 +1035,13 @@ static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
 	chip->c_dma_size = size;
 	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
 	snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
-	count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT], count) - 1;
+	if (chip->hardware & WSS_HW_AD1848_MASK)
+		count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT],
+					  count);
+	else
+		count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT],
+					  count);
+	count--;
 	if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
 		snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
 		snd_wss_out(chip, CS4231_PLY_UPR_CNT,
@@ -1341,6 +1359,11 @@ static int snd_wss_playback_open(struct snd_pcm_substream *substream)
 
 	runtime->hw = snd_wss_playback;
 
+	/* hardware limitation of older chipsets */
+	if (chip->hardware & WSS_HW_AD1848_MASK)
+		runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
+					 SNDRV_PCM_FMTBIT_S16_BE);
+
 	/* hardware bug in InterWave chipset */
 	if (chip->hardware == WSS_HW_INTERWAVE && chip->dma1 > 3)
 		runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
@@ -1379,6 +1402,11 @@ static int snd_wss_capture_open(struct snd_pcm_substream *substream)
 
 	runtime->hw = snd_wss_capture;
 
+	/* hardware limitation of older chipsets */
+	if (chip->hardware & WSS_HW_AD1848_MASK)
+		runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
+					 SNDRV_PCM_FMTBIT_S16_BE);
+
 	/* hardware limitation of cheap chips */
 	if (chip->hardware == WSS_HW_CS4235 ||
 	    chip->hardware == WSS_HW_CS4239)
@@ -1423,6 +1451,26 @@ static int snd_wss_capture_close(struct snd_pcm_substream *substream)
 	return 0;
 }
 
+static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on)
+{
+	int tmp;
+
+	if (!chip->thinkpad_flag)
+		return;
+
+	outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
+	tmp = inb(AD1848_THINKPAD_CTL_PORT2);
+
+	if (on)
+		/* turn it on */
+		tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
+	else
+		/* turn it off */
+		tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
+
+	outb(tmp, AD1848_THINKPAD_CTL_PORT2);
+}
+
 #ifdef CONFIG_PM
 
 /* lowlevel suspend callback for CS4231 */
@@ -1436,6 +1484,8 @@ static void snd_wss_suspend(struct snd_wss *chip)
 	for (reg = 0; reg < 32; reg++)
 		chip->image[reg] = snd_wss_in(chip, reg);
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (chip->thinkpad_flag)
+		snd_wss_thinkpad_twiddle(chip, 0);
 }
 
 /* lowlevel resume callback for CS4231 */
@@ -1445,6 +1495,8 @@ static void snd_wss_resume(struct snd_wss *chip)
 	unsigned long flags;
 	/* int timeout; */
 
+	if (chip->thinkpad_flag)
+		snd_wss_thinkpad_twiddle(chip, 1);
 	snd_wss_mce_up(chip);
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	for (reg = 0; reg < 32; reg++) {
@@ -1542,6 +1594,14 @@ const char *snd_wss_chip_id(struct snd_wss *chip)
 		return "AD1845";
 	case WSS_HW_OPTI93X:
 		return "OPTi 93x";
+	case WSS_HW_AD1847:
+		return "AD1847";
+	case WSS_HW_AD1848:
+		return "AD1848";
+	case WSS_HW_CS4248:
+		return "CS4248";
+	case WSS_HW_CMI8330:
+		return "CMI8330/C3D";
 	default:
 		return "???";
 	}
@@ -1704,7 +1764,8 @@ int snd_wss_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm)
 	struct snd_pcm *pcm;
 	int err;
 
-	if ((err = snd_pcm_new(chip->card, "CS4231", device, 1, 1, &pcm)) < 0)
+	err = snd_pcm_new(chip->card, "WSS", device, 1, 1, &pcm);
+	if (err < 0)
 		return err;
 
 	spin_lock_init(&chip->reg_lock);
@@ -1714,6 +1775,12 @@ int snd_wss_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm)
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_wss_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_wss_capture_ops);
 
+	/* temporary */
+	if (chip->hardware & WSS_HW_AD1848_MASK) {
+		chip->rate_constraint = snd_wss_xrate;
+		chip->set_playback_format = snd_wss_playback_format;
+		chip->set_capture_format = snd_wss_capture_format;
+	}
 	/* global setup */
 	pcm->private_data = chip;
 	pcm->info_flags = 0;
@@ -2134,6 +2201,13 @@ int snd_wss_mixer(struct snd_wss *chip)
 }
 EXPORT_SYMBOL(snd_wss_mixer);
 
+const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction)
+{
+	return direction == SNDRV_PCM_STREAM_PLAYBACK ?
+		&snd_wss_playback_ops : &snd_wss_capture_ops;
+}
+EXPORT_SYMBOL(snd_wss_get_pcm_ops);
+
 /*
  *  INIT part
  */