/*

   *  Driver for C-Media's CMI8330 and CMI8329 soundcards.

   *  Copyright (c) by George Talusan <gstalusan@uwaterloo.ca>
   *    http://www.undergrad.math.uwaterloo.ca/~gstalusa
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation; either version 2 of the License, or
   *   (at your option) any later version.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   *
   */
  
  /*
   * NOTES
   *
   *  The extended registers contain mixer settings which are largely
   *  untapped for the time being.
   *
   *  MPU401 and SPDIF are not supported yet.  I don't have the hardware
   *  to aid in coding and testing, so I won't bother.
   *
   *  To quickly load the module,
   *
   *  modprobe -a snd-cmi8330 sbport=0x220 sbirq=5 sbdma8=1

   *    sbdma16=5 wssport=0x530 wssirq=11 wssdma=0 fmport=0x388

   *
   *  This card has two mixers and two PCM devices.  I've cheesed it such
   *  that recording and playback can be done through the same device.

   *  The driver "magically" routes the capturing to the AD1848 codec,

   *  and playback to the SB16 codec.  This allows for full-duplex mode
   *  to some extent.
   *  The utilities in alsa-utils are aware of both devices, so passing
   *  the appropriate parameters to amixer and alsactl will give you
   *  full control over both mixers.
   */

  #include <linux/init.h>

  #include <linux/err.h>

  #include <linux/isa.h>

  #include <linux/pnp.h>

  #include <linux/module.h>

  #include <sound/core.h>

  #include <sound/wss.h>

  #include <sound/opl3.h>

  #include <sound/mpu401.h>

  #include <sound/sb.h>
  #include <sound/initval.h>
  
  /*
   */
  /* #define ENABLE_SB_MIXER */
  #define PLAYBACK_ON_SB
  
  /*
   */
  MODULE_AUTHOR("George Talusan <gstalusan@uwaterloo.ca>");

  MODULE_DESCRIPTION("C-Media CMI8330/CMI8329");

  MODULE_LICENSE("GPL");
  MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8330,isapnp:{CMI0001,@@@0001,@X@0001}}}");
  
  static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;

  static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;

  #ifdef CONFIG_PNP

  static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};

  #endif
  static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  static int sbirq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  static int sbdma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  static int sbdma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  static int wssirq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  static int wssdma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;

  static long fmport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;

  static long mpuport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  static int mpuirq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;

  
  module_param_array(index, int, NULL, 0444);

  MODULE_PARM_DESC(index, "Index value for CMI8330/CMI8329 soundcard.");

  module_param_array(id, charp, NULL, 0444);

  MODULE_PARM_DESC(id, "ID string  for CMI8330/CMI8329 soundcard.");

  module_param_array(enable, bool, NULL, 0444);

  MODULE_PARM_DESC(enable, "Enable CMI8330/CMI8329 soundcard.");

  #ifdef CONFIG_PNP
  module_param_array(isapnp, bool, NULL, 0444);
  MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
  #endif
  
  module_param_array(sbport, long, NULL, 0444);

  MODULE_PARM_DESC(sbport, "Port # for CMI8330/CMI8329 SB driver.");

  module_param_array(sbirq, int, NULL, 0444);

  MODULE_PARM_DESC(sbirq, "IRQ # for CMI8330/CMI8329 SB driver.");

  module_param_array(sbdma8, int, NULL, 0444);

  MODULE_PARM_DESC(sbdma8, "DMA8 for CMI8330/CMI8329 SB driver.");

  module_param_array(sbdma16, int, NULL, 0444);

  MODULE_PARM_DESC(sbdma16, "DMA16 for CMI8330/CMI8329 SB driver.");

  
  module_param_array(wssport, long, NULL, 0444);

  MODULE_PARM_DESC(wssport, "Port # for CMI8330/CMI8329 WSS driver.");

  module_param_array(wssirq, int, NULL, 0444);

  MODULE_PARM_DESC(wssirq, "IRQ # for CMI8330/CMI8329 WSS driver.");

  module_param_array(wssdma, int, NULL, 0444);

  MODULE_PARM_DESC(wssdma, "DMA for CMI8330/CMI8329 WSS driver.");

  module_param_array(fmport, long, NULL, 0444);

  MODULE_PARM_DESC(fmport, "FM port # for CMI8330/CMI8329 driver.");

  module_param_array(mpuport, long, NULL, 0444);

  MODULE_PARM_DESC(mpuport, "MPU-401 port # for CMI8330/CMI8329 driver.");

  module_param_array(mpuirq, int, NULL, 0444);

  MODULE_PARM_DESC(mpuirq, "IRQ # for CMI8330/CMI8329 MPU-401 port.");

  #ifdef CONFIG_PNP

  static int isa_registered;

  static int pnp_registered;

  #endif

  #define CMI8330_RMUX3D    16
  #define CMI8330_MUTEMUX   17
  #define CMI8330_OUTPUTVOL 18
  #define CMI8330_MASTVOL   19
  #define CMI8330_LINVOL    20
  #define CMI8330_CDINVOL   21
  #define CMI8330_WAVVOL    22
  #define CMI8330_RECMUX    23
  #define CMI8330_WAVGAIN   24
  #define CMI8330_LINGAIN   25
  #define CMI8330_CDINGAIN  26
  
  static unsigned char snd_cmi8330_image[((CMI8330_CDINGAIN)-16) + 1] =
  {
  	0x40,			/* 16 - recording mux (SB-mixer-enabled) */
  #ifdef ENABLE_SB_MIXER
  	0x40,			/* 17 - mute mux (Mode2) */
  #else
  	0x0,			/* 17 - mute mux */
  #endif
  	0x0,			/* 18 - vol */
  	0x0,			/* 19 - master volume */
  	0x0,			/* 20 - line-in volume */
  	0x0,			/* 21 - cd-in volume */
  	0x0,			/* 22 - wave volume */
  	0x0,			/* 23 - mute/rec mux */
  	0x0,			/* 24 - wave rec gain */
  	0x0,			/* 25 - line-in rec gain */
  	0x0			/* 26 - cd-in rec gain */
  };

  typedef int (*snd_pcm_open_callback_t)(struct snd_pcm_substream *);

  enum card_type {
  	CMI8330,
  	CMI8329
  };

  struct snd_cmi8330 {
  #ifdef CONFIG_PNP
  	struct pnp_dev *cap;
  	struct pnp_dev *play;

  	struct pnp_dev *mpu;

  #endif

  	struct snd_card *card;

  	struct snd_wss *wss;

  	struct snd_sb *sb;

  	struct snd_pcm *pcm;

  	struct snd_cmi8330_stream {

  		struct snd_pcm_ops ops;

  		snd_pcm_open_callback_t open;
  		void *private_data; /* sb or wss */
  	} streams[2];

  
  	enum card_type type;

  };

  #ifdef CONFIG_PNP
  
  static struct pnp_card_device_id snd_cmi8330_pnpids[] = {

  	{ .id = "CMI0001", .devs = { { "@X@0001" }, { "@@@0001" }, { "@H@0001" }, { "A@@0001" } } },

  	{ .id = "CMI0001", .devs = { { "@@@0001" }, { "@X@0001" }, { "@H@0001" } } },

  	{ .id = "" }
  };
  
  MODULE_DEVICE_TABLE(pnp_card, snd_cmi8330_pnpids);
  
  #endif

  static struct snd_kcontrol_new snd_cmi8330_controls[] = {

  WSS_DOUBLE("Master Playback Volume", 0,
  		CMI8330_MASTVOL, CMI8330_MASTVOL, 4, 0, 15, 0),
  WSS_SINGLE("Loud Playback Switch", 0,
  		CMI8330_MUTEMUX, 6, 1, 1),
  WSS_DOUBLE("PCM Playback Switch", 0,

  		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),

  WSS_DOUBLE("PCM Playback Volume", 0,

  		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),

  WSS_DOUBLE("Line Playback Switch", 0,
  		CMI8330_MUTEMUX, CMI8330_MUTEMUX, 4, 3, 1, 0),
  WSS_DOUBLE("Line Playback Volume", 0,
  		CMI8330_LINVOL, CMI8330_LINVOL, 4, 0, 15, 0),
  WSS_DOUBLE("Line Capture Switch", 0,
  		CMI8330_RMUX3D, CMI8330_RMUX3D, 2, 1, 1, 0),
  WSS_DOUBLE("Line Capture Volume", 0,
  		CMI8330_LINGAIN, CMI8330_LINGAIN, 4, 0, 15, 0),
  WSS_DOUBLE("CD Playback Switch", 0,
  		CMI8330_MUTEMUX, CMI8330_MUTEMUX, 2, 1, 1, 0),
  WSS_DOUBLE("CD Capture Switch", 0,
  		CMI8330_RMUX3D, CMI8330_RMUX3D, 4, 3, 1, 0),
  WSS_DOUBLE("CD Playback Volume", 0,
  		CMI8330_CDINVOL, CMI8330_CDINVOL, 4, 0, 15, 0),
  WSS_DOUBLE("CD Capture Volume", 0,
  		CMI8330_CDINGAIN, CMI8330_CDINGAIN, 4, 0, 15, 0),
  WSS_SINGLE("Mic Playback Switch", 0,
  		CMI8330_MUTEMUX, 0, 1, 0),
  WSS_SINGLE("Mic Playback Volume", 0,
  		CMI8330_OUTPUTVOL, 0, 7, 0),
  WSS_SINGLE("Mic Capture Switch", 0,
  		CMI8330_RMUX3D, 0, 1, 0),
  WSS_SINGLE("Mic Capture Volume", 0,
  		CMI8330_OUTPUTVOL, 5, 7, 0),
  WSS_DOUBLE("Wavetable Playback Switch", 0,
  		CMI8330_RECMUX, CMI8330_RECMUX, 1, 0, 1, 0),
  WSS_DOUBLE("Wavetable Playback Volume", 0,
  		CMI8330_WAVVOL, CMI8330_WAVVOL, 4, 0, 15, 0),
  WSS_DOUBLE("Wavetable Capture Switch", 0,
  		CMI8330_RECMUX, CMI8330_RECMUX, 5, 4, 1, 0),
  WSS_DOUBLE("Wavetable Capture Volume", 0,
  		CMI8330_WAVGAIN, CMI8330_WAVGAIN, 4, 0, 15, 0),
  WSS_SINGLE("3D Control - Switch", 0,
  		CMI8330_RMUX3D, 5, 1, 1),

  WSS_SINGLE("Beep Playback Volume", 0,

  		CMI8330_OUTPUTVOL, 3, 3, 0),

  WSS_DOUBLE("FM Playback Switch", 0,
  		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
  WSS_DOUBLE("FM Playback Volume", 0,
  		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),

  WSS_SINGLE(SNDRV_CTL_NAME_IEC958("Input ", CAPTURE, SWITCH), 0,
  		CMI8330_RMUX3D, 7, 1, 1),
  WSS_SINGLE(SNDRV_CTL_NAME_IEC958("Input ", PLAYBACK, SWITCH), 0,
  		CMI8330_MUTEMUX, 7, 1, 1),

  };
  
  #ifdef ENABLE_SB_MIXER

  static struct sbmix_elem cmi8330_sb_mixers[] = {

  SB_DOUBLE("SB Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31),
  SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15),
  SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15),
  SB_DOUBLE("SB PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31),
  SB_DOUBLE("SB Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31),
  SB_DOUBLE("SB CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1),
  SB_DOUBLE("SB CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31),
  SB_DOUBLE("SB Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1),
  SB_DOUBLE("SB Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31),
  SB_SINGLE("SB Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1),
  SB_SINGLE("SB Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31),

  SB_SINGLE("SB Beep Volume", SB_DSP4_SPEAKER_DEV, 6, 3),

  SB_DOUBLE("SB Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3),
  SB_DOUBLE("SB Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3),
  SB_SINGLE("SB Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1),
  };

  static unsigned char cmi8330_sb_init_values[][2] = {

  	{ SB_DSP4_MASTER_DEV + 0, 0 },
  	{ SB_DSP4_MASTER_DEV + 1, 0 },
  	{ SB_DSP4_PCM_DEV + 0, 0 },
  	{ SB_DSP4_PCM_DEV + 1, 0 },
  	{ SB_DSP4_SYNTH_DEV + 0, 0 },
  	{ SB_DSP4_SYNTH_DEV + 1, 0 },
  	{ SB_DSP4_INPUT_LEFT, 0 },
  	{ SB_DSP4_INPUT_RIGHT, 0 },
  	{ SB_DSP4_OUTPUT_SW, 0 },
  	{ SB_DSP4_SPEAKER_DEV, 0 },
  };

  static int cmi8330_add_sb_mixers(struct snd_sb *chip)

  {
  	int idx, err;
  	unsigned long flags;
  
  	spin_lock_irqsave(&chip->mixer_lock, flags);
  	snd_sbmixer_write(chip, 0x00, 0x00);		/* mixer reset */
  	spin_unlock_irqrestore(&chip->mixer_lock, flags);
  
  	/* mute and zero volume channels */
  	for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_init_values); idx++) {
  		spin_lock_irqsave(&chip->mixer_lock, flags);
  		snd_sbmixer_write(chip, cmi8330_sb_init_values[idx][0],
  				  cmi8330_sb_init_values[idx][1]);
  		spin_unlock_irqrestore(&chip->mixer_lock, flags);
  	}
  
  	for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_mixers); idx++) {
  		if ((err = snd_sbmixer_add_ctl_elem(chip, &cmi8330_sb_mixers[idx])) < 0)
  			return err;
  	}
  	return 0;
  }
  #endif

  static int snd_cmi8330_mixer(struct snd_card *card, struct snd_cmi8330 *acard)

  {
  	unsigned int idx;
  	int err;

  	strcpy(card->mixername, (acard->type == CMI8329) ? "CMI8329" : "CMI8330/C3D");

  
  	for (idx = 0; idx < ARRAY_SIZE(snd_cmi8330_controls); idx++) {

  		err = snd_ctl_add(card,
  				snd_ctl_new1(&snd_cmi8330_controls[idx],
  					     acard->wss));
  		if (err < 0)

  			return err;
  	}
  
  #ifdef ENABLE_SB_MIXER
  	if ((err = cmi8330_add_sb_mixers(acard->sb)) < 0)
  		return err;
  #endif
  	return 0;
  }
  
  #ifdef CONFIG_PNP

  static int snd_cmi8330_pnp(int dev, struct snd_cmi8330 *acard,
  			   struct pnp_card_link *card,
  			   const struct pnp_card_device_id *id)

  {
  	struct pnp_dev *pdev;

  	int err;

  	/* CMI8329 has a device with ID A@@0001, CMI8330 does not */
  	acard->type = (id->devs[3].id[0]) ? CMI8329 : CMI8330;

  	acard->cap = pnp_request_card_device(card, id->devs[0].id, NULL);

  	if (acard->cap == NULL)

  		return -EBUSY;

  	acard->play = pnp_request_card_device(card, id->devs[1].id, NULL);

  	if (acard->play == NULL)

  		return -EBUSY;

  	acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);

  	if (acard->mpu == NULL)

  		return -EBUSY;

  	pdev = acard->cap;

  	err = pnp_activate_dev(pdev);
  	if (err < 0) {

  		snd_printk(KERN_ERR "AD1848 PnP configure failure
  ");

  		return -EBUSY;
  	}
  	wssport[dev] = pnp_port_start(pdev, 0);
  	wssdma[dev] = pnp_dma(pdev, 0);
  	wssirq[dev] = pnp_irq(pdev, 0);

  	if (pnp_port_start(pdev, 1))

  		fmport[dev] = pnp_port_start(pdev, 1);

  
  	/* allocate SB16 resources */
  	pdev = acard->play;

  	err = pnp_activate_dev(pdev);
  	if (err < 0) {

  		snd_printk(KERN_ERR "SB16 PnP configure failure
  ");

  		return -EBUSY;
  	}
  	sbport[dev] = pnp_port_start(pdev, 0);
  	sbdma8[dev] = pnp_dma(pdev, 0);
  	sbdma16[dev] = pnp_dma(pdev, 1);
  	sbirq[dev] = pnp_irq(pdev, 0);

  	/* On CMI8239, the OPL3 port might be present in SB16 PnP resources */
  	if (fmport[dev] == SNDRV_AUTO_PORT) {
  		if (pnp_port_start(pdev, 1))
  			fmport[dev] = pnp_port_start(pdev, 1);
  		else
  			fmport[dev] = 0x388;	/* Or hardwired */
  	}

  	/* allocate MPU-401 resources */
  	pdev = acard->mpu;
  
  	err = pnp_activate_dev(pdev);

  	if (err < 0)
  		snd_printk(KERN_ERR "MPU-401 PnP configure failure: will be disabled
  ");
  	else {
  		mpuport[dev] = pnp_port_start(pdev, 0);
  		mpuirq[dev] = pnp_irq(pdev, 0);

  	}

  	return 0;
  }
  #endif
  
  /*
   * PCM interface
   *
   * since we call the different chip interfaces for playback and capture
   * directions, we need a trick.
   *
   * - copy the ops for each direction into a local record.
   * - replace the open callback with the new one, which replaces the
   *   substream->private_data with the corresponding chip instance
   *   and calls again the original open callback of the chip.
   *
   */
  
  #ifdef PLAYBACK_ON_SB
  #define CMI_SB_STREAM	SNDRV_PCM_STREAM_PLAYBACK
  #define CMI_AD_STREAM	SNDRV_PCM_STREAM_CAPTURE
  #else
  #define CMI_SB_STREAM	SNDRV_PCM_STREAM_CAPTURE
  #define CMI_AD_STREAM	SNDRV_PCM_STREAM_PLAYBACK
  #endif

  static int snd_cmi8330_playback_open(struct snd_pcm_substream *substream)

  {
  	struct snd_cmi8330 *chip = snd_pcm_substream_chip(substream);
  
  	/* replace the private_data and call the original open callback */
  	substream->private_data = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].private_data;
  	return chip->streams[SNDRV_PCM_STREAM_PLAYBACK].open(substream);
  }

  static int snd_cmi8330_capture_open(struct snd_pcm_substream *substream)

  {
  	struct snd_cmi8330 *chip = snd_pcm_substream_chip(substream);
  
  	/* replace the private_data and call the original open callback */
  	substream->private_data = chip->streams[SNDRV_PCM_STREAM_CAPTURE].private_data;
  	return chip->streams[SNDRV_PCM_STREAM_CAPTURE].open(substream);
  }

  static int snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *chip)

  {

  	struct snd_pcm *pcm;
  	const struct snd_pcm_ops *ops;

  	int err;
  	static snd_pcm_open_callback_t cmi_open_callbacks[2] = {
  		snd_cmi8330_playback_open,
  		snd_cmi8330_capture_open
  	};

  	if ((err = snd_pcm_new(card, (chip->type == CMI8329) ? "CMI8329" : "CMI8330", 0, 1, 1, &pcm)) < 0)

  		return err;

  	strcpy(pcm->name, (chip->type == CMI8329) ? "CMI8329" : "CMI8330");

  	pcm->private_data = chip;

  	
  	/* SB16 */
  	ops = snd_sb16dsp_get_pcm_ops(CMI_SB_STREAM);
  	chip->streams[CMI_SB_STREAM].ops = *ops;
  	chip->streams[CMI_SB_STREAM].open = ops->open;
  	chip->streams[CMI_SB_STREAM].ops.open = cmi_open_callbacks[CMI_SB_STREAM];
  	chip->streams[CMI_SB_STREAM].private_data = chip->sb;
  
  	/* AD1848 */

  	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];
  	chip->streams[CMI_AD_STREAM].private_data = chip->wss;
  
  	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK].ops);
  	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &chip->streams[SNDRV_PCM_STREAM_CAPTURE].ops);
  
  	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
  					      snd_dma_isa_data(),
  					      64*1024, 128*1024);
  	chip->pcm = pcm;
  
  	return 0;
  }

  #ifdef CONFIG_PM
  static int snd_cmi8330_suspend(struct snd_card *card)
  {
  	struct snd_cmi8330 *acard = card->private_data;
  
  	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
  	snd_pcm_suspend_all(acard->pcm);
  	acard->wss->suspend(acard->wss);
  	snd_sbmixer_suspend(acard->sb);
  	return 0;
  }
  
  static int snd_cmi8330_resume(struct snd_card *card)
  {
  	struct snd_cmi8330 *acard = card->private_data;
  
  	snd_sbdsp_reset(acard->sb);
  	snd_sbmixer_suspend(acard->sb);
  	acard->wss->resume(acard->wss);
  	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
  	return 0;
  }
  #endif

  /*
   */

  #ifdef CONFIG_PNP
  #define is_isapnp_selected(dev)		isapnp[dev]
  #else
  #define is_isapnp_selected(dev)		0
  #endif
  
  #define PFX	"cmi8330: "

  static int snd_cmi8330_card_new(struct device *pdev, int dev,
  				struct snd_card **cardp)

  {

  	struct snd_card *card;

  	struct snd_cmi8330 *acard;

  	int err;

  	err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
  			   sizeof(struct snd_cmi8330), &card);

  	if (err < 0) {

  		snd_printk(KERN_ERR PFX "could not get a new card
  ");

  		return err;

  	}

  	acard = card->private_data;

  	acard->card = card;

  	*cardp = card;
  	return 0;

  }

  static int snd_cmi8330_probe(struct snd_card *card, int dev)

  {
  	struct snd_cmi8330 *acard;
  	int i, err;

  	struct snd_opl3 *opl3;

  	acard = card->private_data;

  	err = snd_wss_create(card, wssport[dev] + 4, -1,
  			     wssirq[dev],
  			     wssdma[dev], -1,
  			     WSS_HW_DETECT, 0, &acard->wss);
  	if (err < 0) {

  		snd_printk(KERN_ERR PFX "AD1848 device busy??
  ");

  		return err;

  	}

  	if (acard->wss->hardware != WSS_HW_CMI8330) {

  		snd_printk(KERN_ERR PFX "AD1848 not found during probe
  ");

  		return -ENODEV;

  	}
  
  	if ((err = snd_sbdsp_create(card, sbport[dev],
  				    sbirq[dev],
  				    snd_sb16dsp_interrupt,
  				    sbdma8[dev],
  				    sbdma16[dev],
  				    SB_HW_AUTO, &acard->sb)) < 0) {

  		snd_printk(KERN_ERR PFX "SB16 device busy??
  ");

  		return err;

  	}
  	if (acard->sb->hardware != SB_HW_16) {

  		snd_printk(KERN_ERR PFX "SB16 not found during probe
  ");

  		return err;

  	}

  	snd_wss_out(acard->wss, CS4231_MISC_INFO, 0x40); /* switch on MODE2 */

  	for (i = CMI8330_RMUX3D; i <= CMI8330_CDINGAIN; i++)

  		snd_wss_out(acard->wss, i,
  			    snd_cmi8330_image[i - CMI8330_RMUX3D]);

  
  	if ((err = snd_cmi8330_mixer(card, acard)) < 0) {

  		snd_printk(KERN_ERR PFX "failed to create mixers
  ");

  		return err;

  	}
  
  	if ((err = snd_cmi8330_pcm(card, acard)) < 0) {

  		snd_printk(KERN_ERR PFX "failed to create pcms
  ");

  		return err;

  	}

  	if (fmport[dev] != SNDRV_AUTO_PORT) {
  		if (snd_opl3_create(card,
  				    fmport[dev], fmport[dev] + 2,
  				    OPL3_HW_AUTO, 0, &opl3) < 0) {
  			snd_printk(KERN_ERR PFX
  				   "no OPL device at 0x%lx-0x%lx ?
  ",
  				   fmport[dev], fmport[dev] + 2);
  		} else {

  			err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
  			if (err < 0)
  				return err;
  		}
  	}

  	if (mpuport[dev] != SNDRV_AUTO_PORT) {
  		if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
  					mpuport[dev], 0, mpuirq[dev],

  					NULL) < 0)

  			printk(KERN_ERR PFX "no MPU-401 device at 0x%lx.
  ",
  				mpuport[dev]);
  	}

  	strcpy(card->driver, (acard->type == CMI8329) ? "CMI8329" : "CMI8330/C3D");
  	strcpy(card->shortname, (acard->type == CMI8329) ? "C-Media CMI8329" : "C-Media CMI8330/C3D");

  	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
  		card->shortname,
  		acard->wss->port,
  		wssirq[dev],
  		wssdma[dev]);

  	return snd_card_register(card);
  }

  static int snd_cmi8330_isa_match(struct device *pdev,
  				 unsigned int dev)

  {

  	if (!enable[dev] || is_isapnp_selected(dev))
  		return 0;

  	if (wssport[dev] == SNDRV_AUTO_PORT) {
  		snd_printk(KERN_ERR PFX "specify wssport
  ");

  		return 0;

  	}
  	if (sbport[dev] == SNDRV_AUTO_PORT) {
  		snd_printk(KERN_ERR PFX "specify sbport
  ");

  		return 0;

  	}

  	return 1;
  }

  static int snd_cmi8330_isa_probe(struct device *pdev,
  				 unsigned int dev)

  {
  	struct snd_card *card;
  	int err;

  	err = snd_cmi8330_card_new(pdev, dev, &card);

  	if (err < 0)
  		return err;

  	if ((err = snd_cmi8330_probe(card, dev)) < 0) {
  		snd_card_free(card);
  		return err;
  	}

  	dev_set_drvdata(pdev, card);

  	return 0;

  }

  static int snd_cmi8330_isa_remove(struct device *devptr,
  				  unsigned int dev)

  {

  	snd_card_free(dev_get_drvdata(devptr));

  	return 0;
  }

  #ifdef CONFIG_PM

  static int snd_cmi8330_isa_suspend(struct device *dev, unsigned int n,
  				   pm_message_t state)

  {

  	return snd_cmi8330_suspend(dev_get_drvdata(dev));

  }

  static int snd_cmi8330_isa_resume(struct device *dev, unsigned int n)

  {

  	return snd_cmi8330_resume(dev_get_drvdata(dev));

  }
  #endif

  #define DEV_NAME	"cmi8330"

  static struct isa_driver snd_cmi8330_driver = {
  	.match		= snd_cmi8330_isa_match,
  	.probe		= snd_cmi8330_isa_probe,

  	.remove		= snd_cmi8330_isa_remove,

  #ifdef CONFIG_PM

  	.suspend	= snd_cmi8330_isa_suspend,
  	.resume		= snd_cmi8330_isa_resume,

  #endif
  	.driver		= {

  		.name	= DEV_NAME

  	},
  };

  #ifdef CONFIG_PNP

  static int snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
  				  const struct pnp_card_device_id *pid)

  {
  	static int dev;

  	struct snd_card *card;

  	int res;
  
  	for ( ; dev < SNDRV_CARDS; dev++) {

  		if (enable[dev] && isapnp[dev])
  			break;
  	}
  	if (dev >= SNDRV_CARDS)
  		return -ENODEV;
  			       

  	res = snd_cmi8330_card_new(&pcard->card->dev, dev, &card);

  	if (res < 0)
  		return res;

  	if ((res = snd_cmi8330_pnp(dev, card->private_data, pcard, pid)) < 0) {
  		snd_printk(KERN_ERR PFX "PnP detection failed
  ");
  		snd_card_free(card);
  		return res;
  	}

  	if ((res = snd_cmi8330_probe(card, dev)) < 0) {
  		snd_card_free(card);
  		return res;

  	}

  	pnp_set_card_drvdata(pcard, card);
  	dev++;
  	return 0;

  }

  static void snd_cmi8330_pnp_remove(struct pnp_card_link *pcard)

  {

  	snd_card_free(pnp_get_card_drvdata(pcard));
  	pnp_set_card_drvdata(pcard, NULL);
  }

  #ifdef CONFIG_PM
  static int snd_cmi8330_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
  {
  	return snd_cmi8330_suspend(pnp_get_card_drvdata(pcard));

  }

  static int snd_cmi8330_pnp_resume(struct pnp_card_link *pcard)
  {
  	return snd_cmi8330_resume(pnp_get_card_drvdata(pcard));
  }
  #endif

  static struct pnp_card_driver cmi8330_pnpc_driver = {
  	.flags = PNP_DRIVER_RES_DISABLE,
  	.name = "cmi8330",
  	.id_table = snd_cmi8330_pnpids,
  	.probe = snd_cmi8330_pnp_detect,

  	.remove = snd_cmi8330_pnp_remove,

  #ifdef CONFIG_PM
  	.suspend	= snd_cmi8330_pnp_suspend,
  	.resume		= snd_cmi8330_pnp_resume,
  #endif

  };
  #endif /* CONFIG_PNP */
  
  static int __init alsa_card_cmi8330_init(void)
  {

  	int err;

  	err = isa_register_driver(&snd_cmi8330_driver, SNDRV_CARDS);

  #ifdef CONFIG_PNP

  	if (!err)
  		isa_registered = 1;

  	err = pnp_register_card_driver(&cmi8330_pnpc_driver);

  	if (!err)

  		pnp_registered = 1;

  
  	if (isa_registered)
  		err = 0;

  #endif

  	return err;

  }
  
  static void __exit alsa_card_cmi8330_exit(void)
  {

  #ifdef CONFIG_PNP
  	if (pnp_registered)
  		pnp_unregister_card_driver(&cmi8330_pnpc_driver);

  
  	if (isa_registered)

  #endif

  		isa_unregister_driver(&snd_cmi8330_driver);

  }
  
  module_init(alsa_card_cmi8330_init)
  module_exit(alsa_card_cmi8330_exit)