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linux/sound/isa/cmi8330.c

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/*
* Driver for C-Media's CMI8330 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
*
* 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/slab.h>
#include <linux/pnp.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/wss.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");
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 int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
#ifdef CONFIG_PNP
static int 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;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for CMI8330 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for CMI8330 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable CMI8330 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 SB driver.");
module_param_array(sbirq, int, NULL, 0444);
MODULE_PARM_DESC(sbirq, "IRQ # for CMI8330 SB driver.");
module_param_array(sbdma8, int, NULL, 0444);
MODULE_PARM_DESC(sbdma8, "DMA8 for CMI8330 SB driver.");
module_param_array(sbdma16, int, NULL, 0444);
MODULE_PARM_DESC(sbdma16, "DMA16 for CMI8330 SB driver.");
module_param_array(wssport, long, NULL, 0444);
MODULE_PARM_DESC(wssport, "Port # for CMI8330 WSS driver.");
module_param_array(wssirq, int, NULL, 0444);
MODULE_PARM_DESC(wssirq, "IRQ # for CMI8330 WSS driver.");
module_param_array(wssdma, int, NULL, 0444);
MODULE_PARM_DESC(wssdma, "DMA for CMI8330 WSS driver.");
#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 *);
struct snd_cmi8330 {
#ifdef CONFIG_PNP
struct pnp_dev *cap;
struct pnp_dev *play;
#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];
};
#ifdef CONFIG_PNP
static struct pnp_card_device_id snd_cmi8330_pnpids[] = {
{ .id = "CMI0001", .devs = { { "@@@0001" }, { "@X@0001" } } },
{ .id = "" }
};
MODULE_DEVICE_TABLE(pnp_card, snd_cmi8330_pnpids);
#endif
static struct snd_kcontrol_new snd_cmi8330_controls[] __devinitdata = {
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("PC Speaker Playback Volume", 0,
CMI8330_OUTPUTVOL, 3, 3, 0),
WSS_SINGLE("FM Playback Switch", 0,
CMI8330_RECMUX, 3, 1, 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[] __devinitdata = {
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 PC Speaker 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] __devinitdata = {
{ 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 __devinit 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 __devinit snd_cmi8330_mixer(struct snd_card *card, struct snd_cmi8330 *acard)
{
unsigned int idx;
int err;
strcpy(card->mixername, "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 __devinit 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;
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;
pdev = acard->cap;
err = pnp_activate_dev(pdev);
if (err < 0) {
snd_printk(KERN_ERR "CMI8330/C3D (AD1848) PnP configure failure\n");
return -EBUSY;
}
wssport[dev] = pnp_port_start(pdev, 0);
wssdma[dev] = pnp_dma(pdev, 0);
wssirq[dev] = pnp_irq(pdev, 0);
/* allocate SB16 resources */
pdev = acard->play;
err = pnp_activate_dev(pdev);
if (err < 0) {
snd_printk(KERN_ERR "CMI8330/C3D (SB16) PnP configure failure\n");
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);
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 __devinit 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, "CMI8330", 0, 1, 1, &pcm)) < 0)
return err;
strcpy(pcm->name, "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 struct snd_card *snd_cmi8330_card_new(int dev)
{
struct snd_card *card;
struct snd_cmi8330 *acard;
card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_cmi8330));
if (card == NULL) {
snd_printk(KERN_ERR PFX "could not get a new card\n");
return NULL;
}
acard = card->private_data;
acard->card = card;
return card;
}
static int __devinit snd_cmi8330_probe(struct snd_card *card, int dev)
{
struct snd_cmi8330 *acard;
int i, err;
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??\n");
return err;
}
if (acard->wss->hardware != WSS_HW_CMI8330) {
snd_printk(KERN_ERR PFX "(AD1848) not found during probe\n");
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??\n");
return err;
}
if (acard->sb->hardware != SB_HW_16) {
snd_printk(KERN_ERR PFX "(SB16) not found during probe\n");
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\n");
return err;
}
if ((err = snd_cmi8330_pcm(card, acard)) < 0) {
snd_printk(KERN_ERR PFX "failed to create pcms\n");
return err;
}
strcpy(card->driver, "CMI8330/C3D");
strcpy(card->shortname, "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 __devinit 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\n");
return 0;
}
if (sbport[dev] == SNDRV_AUTO_PORT) {
snd_printk(KERN_ERR PFX "specify sbport\n");
return 0;
}
return 1;
}
static int __devinit snd_cmi8330_isa_probe(struct device *pdev,
unsigned int dev)
{
struct snd_card *card;
int err;
card = snd_cmi8330_card_new(dev);
if (! card)
return -ENOMEM;
snd_card_set_dev(card, pdev);
if ((err = snd_cmi8330_probe(card, dev)) < 0) {
snd_card_free(card);
return err;
}
dev_set_drvdata(pdev, card);
return 0;
}
static int __devexit snd_cmi8330_isa_remove(struct device *devptr,
unsigned int dev)
{
snd_card_free(dev_get_drvdata(devptr));
dev_set_drvdata(devptr, NULL);
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 = __devexit_p(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 __devinit 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;
card = snd_cmi8330_card_new(dev);
if (! card)
return -ENOMEM;
if ((res = snd_cmi8330_pnp(dev, card->private_data, pcard, pid)) < 0) {
snd_printk(KERN_ERR PFX "PnP detection failed\n");
snd_card_free(card);
return res;
}
snd_card_set_dev(card, &pcard->card->dev);
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 __devexit 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 = __devexit_p(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)
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